Synchronization signal block processing method and apparatus, and device

Abstract

The present application belongs to the field of communications. Disclosed are a synchronization signal block (SSB) processing method and apparatus, and a device. The SSB processing method in the embodiments of the present application comprises: a first device detecting in a first synchronization raster a first SSB part, wherein the first synchronization raster is related to the first SSB part; and the first device processing a second SSB part on the basis of the first SSB part, wherein the first SSB part and the second SSB part constitute an SSB.

Description

Method, apparatus and device for processing synchronization signal block

[0001] Cross-reference to Related Applications

[0002] The present application is based on the Chinese patent application No. 202411059167.5, filed on August 3, 2024, and claims the priority of the Chinese patent application No. 202411059167.5, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, in particular to a method, apparatus and device for processing synchronization signal block. BACKGROUND

[0004] In 5G NR, due to the fact that the channel bandwidth can be very large, if the terminal performs synchronization signal search according to the channel raster, the time required is very long and the power consumption is very high, therefore the concept of synchronization raster is introduced, and the synchronization signal is placed according to the synchronization raster. The minimum bandwidth supported by the NR system is 5MHz, and for the design of the synchronization raster, it is necessary to ensure that there is at least one available synchronization raster in the spectrum with a bandwidth of 5MHz at any frequency point position, and the synchronization signal block centered on the synchronization raster is contained in the 5MHz channel bandwidth. The design of the synchronization raster needs to maximize the frequency interval of the synchronization raster under the condition of meeting the network deployment, so as to reduce the search time and search complexity of the terminal during initial access.

[0005] However, for the current design of the synchronization raster, the search time of the terminal during initial access is still relatively long, and the search complexity is still relatively high. SUMMARY

[0006] The embodiments of the present application provide a method, apparatus and device for processing synchronization signal block, which can reduce the complexity and latency of the terminal search in the frequency domain.

[0007] In a first aspect, a method for processing synchronization signal block is provided, comprising:

[0008] A first device detects a first synchronization signal block (SSB) part in a first synchronization raster, the first synchronization raster being related to the first SSB part;

[0009] The first device processes a second SSB part according to the first SSB part, the first SSB part and the second SSB part constituting an SSB.

[0010] In a second aspect, a method for processing synchronization signal block is provided, comprising:

[0011] The second device sends a first synchronization signal block (SSB) part to the first device, the first SSB part being associated with a first synchronization raster;

[0012] The first SSB part is a part of an SSB, and the SSB further includes a second SSB part.

[0013] In a third aspect, a processing apparatus of a synchronization signal block is provided, comprising:

[0014] a detecting unit configured to detect a first synchronization signal block (SSB) part at a first synchronization raster, the first synchronization raster being associated with the first SSB part;

[0015] a processing unit configured to process a second SSB part according to the first SSB part, the first SSB part and the second SSB part constituting an SSB.

[0016] In a fourth aspect, a processing apparatus of a synchronization signal block is provided, comprising:

[0017] a sending unit configured to send a first synchronization signal block (SSB) part to a first device, the first SSB part being associated with a first synchronization raster;

[0018] The first SSB part is a part of an SSB, and the SSB further includes a second SSB part.

[0019] In a fifth aspect, a processing apparatus of a synchronization signal block is provided, the apparatus being configured to perform the steps of the method of the first aspect, or to implement the steps of the method of the second aspect.

[0020] In a sixth aspect, a terminal is provided, the terminal comprising a transceiver, a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method of the first aspect.

[0021] In a seventh aspect, a first device is provided, comprising a processor and a communication interface;

[0022] The communication interface is configured to detect a first synchronization signal block (SSB) part at a first synchronization raster, the first synchronization raster being associated with the first SSB part;

[0023] A second SSB part is processed according to the first SSB part, the first SSB part and the second SSB part constituting an SSB.

[0024] In an eighth aspect, a network-side device is provided, which includes a transceiver, a processor and a memory, the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the second aspect.

[0025] In a ninth aspect, a second device is provided, which includes a processor and a communication interface.

[0026] The communication interface is configured to send a first synchronization signal block (SSB) part to the first device, the first SSB part being associated with a first synchronization raster.

[0027] The first SSB part is a part of an SSB, and the SSB further includes a second SSB part.

[0028] In a tenth aspect, a readable storage medium is provided, which stores programs or instructions, the programs or instructions, when executed by a processor, implement the steps of the method according to the first aspect or the steps of the method according to the second aspect.

[0029] In an eleventh aspect, a wireless communication system is provided, which includes a terminal and a network-side device, the terminal is configured to execute the steps of the method according to the first aspect, and the network-side device is configured to execute the steps of the method according to the second aspect.

[0030] In a twelfth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute programs or instructions to implement the method according to the first aspect or the method according to the second aspect.

[0031] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the processing method of the synchronization signal block according to the first aspect or the second aspect.

[0032] In the embodiment of the present application, the first device detects a first synchronization signal block SSB part at a first synchronization raster, the first synchronization raster is related to the first SSB part, the first device processes a second SSB part according to the first SSB part, and the first SSB part and the second SSB part constitute an SSB. By this, the SSB is divided into the first SSB part and the second SSB part, the bandwidth and other parameters of the first SSB part and the second SSB part can be flexibly set, for example, the bandwidth of the first SSB part is reduced, and the bandwidth of the second SSB part is maintained. Since the first synchronization raster only refers to the first SSB part, the frequency interval of the synchronization raster can be increased by reducing the bandwidth of the first SSB part, and the second SSB part carries information by maintaining a large bandwidth, so the transmission period of the SSB can be increased, the complexity and the latency of the first device in the frequency domain search are reduced, thereby realizing network energy saving, and the flexibility of the SSB is also enhanced by splitting the SSB. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0034] FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0035] FIG. 2 is a structural diagram of an SSB according to an embodiment of the present application;

[0036] FIG. 3 is a schematic flowchart of a processing method 100 of a synchronization signal block according to an embodiment of the present application;

[0037] FIG. 4 is a schematic diagram of five SSB modes according to an embodiment of the present application;

[0038] FIG. 5 is a schematic flowchart of a processing method 200 of a synchronization signal block according to an embodiment of the present application;

[0039] FIG. 6 is a schematic flowchart of a processing method 300 of a synchronization signal block according to an embodiment of the present application;

[0040] FIG. 7 is a schematic block diagram of a processing apparatus 400 of a synchronization signal block according to an embodiment of the present application;

[0041] FIG. 8 is a schematic block diagram of a processing apparatus 500 of a synchronization signal block according to an embodiment of the present application;

[0042] FIG. 9 is a structural diagram of a communication device 600 according to an embodiment of the present application;

[0043] Fig. 10 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application;

[0044] Fig. 11 is a schematic diagram of a structure of a network-side device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0046] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally a category and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, scenario one: including A and not including B; scenario two: including B and not including A; scenario three: including A and including B. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0047] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). Among them, the direct indication can be understood as that the sender explicitly informs the receiver of specific information, operations to be performed or requested results, etc. in the indication sent by the sender; the indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operation to be performed or the requested result according to the judgment result.

[0048] It is worth noting that the technology described in the embodiments of the present application is not limited to Ambient Internet of Things (IoT) systems, but can also be used in other wireless communication systems, such as Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), Bluetooth systems, or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0049] FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a user equipment (UE). The terminal 11 can be a terminal-side device such as a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), an augmented reality (AR) device, a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipboard device, a pedestrian user equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a personal computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, and the like), a smart wristband, smart clothes, and the like. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0050] The network-side device 12 can include an access network device or a core network device.

[0051] The access network device can also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc. Among them, the base station can be referred to as a node B (NB), an evolved node B (eNB), a next generation node B (gNB), a new radio node B (NR node B), an access point, a relay base station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B (HNB), a home evolved node B, a transmit / receive point (TRP), or some other suitable term in the art, as long as the same technical effect is achieved. The base station is not limited to a specific technical term, and it should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0052] The core network device can also be referred to as a core network node, a core network function, or a core network network element, and the like. The core network device includes, but is not limited to, at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), and the like. It should be noted that only the core network device in the NR system is taken as an example in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application. Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation in this regard.It can be understood that the above functional modules can be network elements in a hardware device, software functional modules running on a special hardware, or virtualized functional modules instantiated on a platform (for example, a cloud platform).

[0053] For better understanding of the embodiments of the present application, the synchronization signal and PBCH are described.

[0054] In order to enable the terminal to search for a reasonable cell and synchronize with the selected cell, the network usually needs to broadcast a synchronization signal and provide certain main information about the cell. FIG. 2 is a structural schematic diagram of an SSB provided by an embodiment of the present application. Specifically, the SSB can be as shown in FIG. 2. The synchronization signal (SS) mainly includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The PSS and the SSS can occupy 127 subcarriers. The physical broadcast channel (PBCH) on both sides of the SSS can occupy 4 physical resource blocks (PRBs). The PSS and the SSS are used for coarse synchronization in time and frequency. The PBCH is used to carry the broadcast message master information block (MIB). The DMRS of the PBCH is used for demodulation of the PBCH. In addition, the entire SSB occupies 4 OFDM symbols in the time domain and a maximum of 20 resource blocks (RBs) in the frequency domain. Since the time-frequency occupied resources of the SSB are limited, only a preliminary time-frequency coarse synchronization can be performed based on the SSB.

[0055] It should be noted that the SSB can also be referred to as a synchronization signal / physical broadcast channel block (SS / PBCH block).

[0056] A wireless device (terminal) performs a cell search procedure to synchronize with a base station cell providing synchronization signals and broadcast signals / channels, and to obtain time-frequency resource locations in the frequency and time domains of a cell deployed by the base station, and a physical cell identity (ID). As shown in FIG. 2, the terminal first detects an NR primary synchronization signal (PSS) to obtain a part of the physical cell identity (ID), i.e., N(2)_ID; to obtain OFDM symbol timing and frequency synchronization; and then detects a secondary synchronization signal (SSS) to obtain another part of the physical cell ID, i.e., N(1)_ID, to obtain the complete physical cell ID, i.e., a physical cell identity (PCI). That is The terminal then detects a physical broadcast channel (PBCH) and a reference signal for demodulating the PBCH, i.e., a demodulation reference signal (DMRS), to obtain a system frame number (SFN) and an SSB index, and further to obtain a radio frame (subframe) timing.

[0057] To better understand the embodiments of the present application, the synchronization raster is described.

[0058] In 5G NR, if a terminal performs synchronization signal searching according to a channel raster, a very long time is required and a lot of power is consumed, because the channel bandwidth can be very large. Therefore, the concept of a synchronization raster is defined in NR, and synchronization signals are placed according to the synchronization raster.

[0059] The design of the synchronization raster mainly needs to consider the following two aspects:

[0060] The network needs to ensure that there is a synchronization raster within the channel bandwidth in the case of different bandwidths and different frequency locations.

[0061] 2. In the case of meeting network deployment, the frequency interval of the synchronization raster is increased as much as possible to reduce the frequency point set for initial searching by the terminal (i.e., to reduce the number of synchronization rasters for cell searching by the terminal).

[0062] The minimum bandwidth supported by the 5G NR system is 5MHz. Since the spectrum resources of global operators can be at any frequency position in the frequency band, the design of the synchronization raster in the NR system needs to ensure that there is at least one available synchronization raster in the spectrum with a bandwidth of 5MHz at any frequency position, and the SSB with the synchronization raster as the center frequency point is included in the 5MHz channel bandwidth. The 5G NR system supports higher bandwidths, such as 10MHz, 20MHz, etc. If it can be ensured that there is an effective synchronization raster at any frequency position in a 5MHz bandwidth, then the design can also ensure the deployment of a larger channel bandwidth at any frequency position.

[0063] In the synchronization raster frequency interval, assuming that the minimum channel bandwidth is xRB and the bandwidth of the SSB is yRB, the condition for deploying a channel with an xRB bandwidth at any frequency position is that the maximum interval between two synchronization rasters is x(RB)-y(RB)+delta_f, where delta_f is the minimum frequency interval of the channel deployment. For the FR1 frequency band of the 5G NR system, delta_f is 15KHz, that is, the minimum subcarrier interval of the resource grid. Therefore, the finally determined synchronization raster frequency interval is less than or equal to x(RB)-y(RB)+15(KHz).

[0064] In the related art, the transmission period of the SSB needs to be controlled within 20ms. How to increase the frequency interval of the synchronization raster to reduce the complexity and latency of the terminal in the frequency domain search is a technical problem to be solved by the present application, that is, to increase the frequency interval of the synchronization raster to reduce the complexity and latency of the terminal in the frequency domain search, thereby allowing the network side device to transmit the SSB with a larger period to achieve the purpose of network energy saving. At the same time, the SSB design needs to flexibly support the access of multiple terminal types, for example, some terminals only support narrow bandwidth, and some terminals can support normal bandwidth. Enhancing the flexibility of the SSB is also a technical problem to be solved.

[0065] The embodiment of the present application sets the SSB to include a first SSB part and a second SSB part, sends the first SSB part to the first device by the second device, the first synchronization raster is related to the first SSB part, the first device detects the first SSB part in the first synchronization raster, and then processes the second SSB part according to the first SSB part. By this way, the SSB is divided into the first SSB part and the second SSB part, the bandwidth and other parameters of the first SSB part and the second SSB part can be flexibly set, for example, the bandwidth of the first SSB part is reduced, and the bandwidth of the second SSB part is maintained. Since the first synchronization raster only refers to the first SSB part, the frequency interval of the synchronization raster can be increased by reducing the bandwidth of the first SSB part, and the transmission period of the SSB can be increased by maintaining the large bandwidth of the second SSB part to carry information, so that the complexity and the latency of the first device in the frequency domain search are reduced, thereby realizing network energy saving, and the flexibility of the SSB is also enhanced by splitting the SSB.

[0066] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, which all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0067] FIG. 3 is a schematic flowchart of a synchronization signal block processing method 100 provided by an embodiment of the present application. As shown in FIG. 3, the synchronization signal block processing method 100 can include at least part of the following contents:

[0068] S110, the second device sends the first SSB part to the first device, the first SSB part is a part of the SSB, and the SSB further includes a second SSB part.

[0069] S120, the first device detects the first SSB part in the first synchronization raster, and the first synchronization raster is related to the first SSB part.

[0070] S130, the first device processes the second SSB part according to the first SSB part, and the first SSB part and the second SSB part constitute the SSB.

[0071] In the embodiment, the first SSB part and the second SSB part can be sent simultaneously or separately. If sent separately, the first device processes the second SSB part according to the first SSB part, which can be receiving the second SSB part according to the first SSB part first and then processing the second SSB part, such as detection, search, measurement, and the like. If sent simultaneously, after receiving the first SSB part and the second SSB part, the first device detects the first SSB part in the first synchronization raster, and then processes the second SSB part according to the first SSB part, such as detection, search, measurement, and the like.

[0072] It should be understood that FIG. 3 shows steps or operations of the processing method 100 of the synchronization signal block, but these steps or operations are only examples, and the embodiments of the present application can also perform other operations or variations of the operations in FIG. 3.

[0073] The SSB of the embodiments of the present application can be used interchangeably with the synchronization signal / physical broadcast signal block (SS / PBCH block), and can also be called any module containing at least one of the synchronization signal, the demodulation signal, the broadcast signal, the broadcast channel (PBCH), the other system message downlink broadcast channel, or the other control channel.

[0074] The synchronization raster in the embodiments of the present application includes one or more synchronization raster frequency points or is expressed as one or more frequency points, frequency bands, or frequency ranges in which the SSB can exist.

[0075] Specifically, in the embodiment, the SSB includes a first SSB part and a second SSB part, and the first SSB part is related to the first synchronization raster. In the embodiment, the first SSB part is related to the first synchronization raster, which can be that the first synchronization raster refers to the first SSB part. The synchronization raster of the current NR is defined as the center frequency point of the transmitted SSB. In the embodiments of the present application, the definition of the synchronization raster is related to the first SSB part, and the synchronization raster can be defined as the center frequency point of the first SSB part of the transmitted SSB. That is, the above-mentioned first synchronization raster can be defined as the center frequency point of the first SSB part of the transmitted SSB.

[0076] In the embodiments of the present application, the transmission of the first SSB part and the second SSB part and the corresponding detection of the first device have the following two implementable modes:

[0077] Mode one: S1, the second device sends the SSB to the first device, the SSB includes the first SSB part and the second SSB part, and the first SSB part is related to the first synchronization raster.

[0078] S2, the first device detects the first SSB part in the first synchronization raster.

[0079] S3, the first device processes the second SSB part according to the first SSB part.

[0080] In this mode, the second device periodically sends the SSB including the first SSB part and the second SSB part to the first device.

[0081] Mode two: S11, the second device sends the first SSB part to the first device.

[0082] In this embodiment, the second device only sends the first SSB part.

[0083] S12, the first device detects the first SSB part at the first synchronization grid.

[0084] S13, the first device sends a wake-up signal to the second device according to the first SSB part.

[0085] Specifically, in an embodiment, the first SSB part carries an indication information, which is used to indicate that the second SSB part is not sent but can be triggered by a wake-up signal used to wake up the sending of the second SSB part. The first device sends a wake-up signal to the second device according to the first SSB part, which can be specifically that the first device determines that the second SSB part is not sent but can be triggered by a wake-up signal according to the indication information carried by the first SSB part, and the first device sends a wake-up signal to the second device when it is determined that the second SSB part is needed for subsequent operation. Optionally, the first device waits for feedback from the second device after sending the wake-up signal.

[0086] S14, the second device sends the second SSB part to the first device.

[0087] S15, after receiving the second SSB part sent by the second device, the first device processes the second SSB part according to the first SSB part.

[0088] Optionally, the first device can detect the second SSB part in a time window after sending the wake-up signal, or detect the second SSB part in a time window after receiving the second SSB part.

[0089] In this embodiment, by sending a wake-up signal to the second device to wake up the sending of the second SSB part only when the first device needs the second SSB part, the periodic sending of the second SSB part by the second device can be reduced, and further network energy saving benefits can be obtained on the basis of the above-mentioned embodiment one.

[0090] In some embodiments, the first SSB part and the second SSB part are different in at least one of the following:

[0091] center frequency point;

[0092] Upper edge frequency point;

[0093] Lower edge frequency point;

[0094] Frequency domain bandwidth;

[0095] Subcarrier alignment point;

[0096] Time domain period;

[0097] Transmit power;

[0098] Power spectral density;

[0099] Equivalent isotropically radiated power;

[0100] Bit signal-to-noise ratio;

[0101] Number of SSBs in a period in a spatial domain;

[0102] Index of spatial domain SSB.

[0103] The center frequency point, the upper edge frequency point, the lower edge frequency point, the frequency domain bandwidth, and the subcarrier alignment point are frequency domain features, and the transmit power, the power spectral density, the equivalent isotropically radiated power, and the bit signal-to-noise ratio are power domain features.

[0104] In the embodiment, the SSBs are divided into a first SSB part and a second SSB part, and by setting at least one of the above to be different between the first SSB part and the second SSB part, the flexibility of the SSBs can be enhanced.

[0105] Optionally, the SSBs in the embodiment can have multiple candidate SSB modes, and several examples are given in FIG. 4. FIG. 4 is a schematic diagram of five SSB modes provided by an embodiment of the application, as shown in FIG. 4, there are five modes in total, namely mode 1, mode 2, mode 3, mode 4, and mode 5.

[0106] In terms of the frequency domain, in some embodiments, the frequency domain bandwidths of the first SSB part and the second SSB part are different, and the upper edge frequency points / subcarrier alignment points are aligned or have a certain offset, as shown in mode 1.

[0107] In some embodiments, the frequency domain bandwidths of the first SSB part and the second SSB part are different, and the lower edge frequency points / subcarrier alignment points are aligned or have a certain offset, as shown in mode 2.

[0108] In some sub-embodiments, the frequency domain bandwidths of the first SSB part and the second SSB part are different, and the center frequency points / subcarrier alignment points are aligned or have a certain offset, as shown in mode 3.

[0109] In some sub-embodiments, the frequency domain bandwidths of the first SSB part and the second SSB part are the same, and the center frequency points / subcarrier alignment points are aligned or have a certain offset, as shown in mode 4.

[0110] In some sub-embodiments, the SSB only includes the first SSB part, as shown in Mode 5.

[0111] Optionally, when the SSB has the above multiple candidate modes, for any channel raster and centering on the channel raster, if a synchronization raster can be found to accommodate the first SSB part, the second device can certainly find a candidate mode to accommodate the second SSB part, which is the reason for introducing multiple candidate modes. At the same time, for Mode 4, it can be used for SSB transmission of some Internet of Things (IoT) scenarios, and for Mode 5, it can be used for some energy saving scenarios as a minimalist SSB transmission or as a kind of SSB transmission for measurement function.

[0112] In terms of time domain, in some embodiments, for all candidate SSB modes, the relative time domain positions and lengths of the first SSB part and the second SSB part are fixed, and each part can be continuous, for example, the SSB contains 4 symbols in total, the first SSB part contains symbols 1 and 2, and the second SSB part contains symbols 3 and 4. Optionally, each part can also be discontinuous, for example, the SSB contains 4 symbols in total, the first SSB part contains symbols 1 and 3, and the second SSB part contains symbols 2 and 4.

[0113] In some embodiments, for different candidate SSB modes, the relative time domain positions or lengths of the first SSB part and the second SSB part are fixed, and each part can be continuous, for example, SSB mode 1 contains 4 symbols in total, the first SSB part contains symbols 1 and 2, and the second SSB part contains symbols 3 and 4; SSB mode 2 contains 6 symbols in total, the first SSB part contains symbols 1 and 2, and the second SSB part contains symbols 3, 4, 5 and 6. Optionally, the relative time domain positions or lengths of the first SSB part and the second SSB part are fixed, and each part can also be discontinuous, for example, SSB mode 1 contains 4 symbols in total, the first SSB part contains symbols 1 and 3, and the second SSB part contains symbols 2 and 4; SSB mode 2 contains 6 symbols in total, the first SSB part contains symbols 1 and 4, and the second SSB part contains symbols 2, 3, 5 and 6.

[0114] In terms of power domain, in some embodiments, the transmission power / power spectral density / Effective Isotropic Radiated Power (EIRP) or bit signal-to-noise ratio (Eb / N0) of the first SSB part and the second SSB part are the same, and share one indication.

[0115] In some embodiments, the transmission power / power spectral density / EIRP or Eb / N0 of the first SSB part and the second SSB part are different, indicated by at least one of the following:

[0116] 1) 2 power independent indication parameters, which can be carried in the first SSB part, or in the second SSB part, or in the first SSB part and the second SSB part respectively.

[0117] 2) one power indication parameter (e.g. the power of the first SSB part) and one power offset parameter (e.g. the power offset of the second SSB part relative to the first SSB part), which can be carried in the first SSB part, or in the second SSB part, or in the first SSB part and the second SSB part respectively.

[0118] In terms of space, in some embodiments, the space characteristics of the first SSB part and the second SSB part are exactly the same, i.e. the same quasi co-location (QCL) and average gain.

[0119] In some embodiments, the space characteristics of the first SSB part and the second SSB part are not exactly the same. Optionally, the second SSB part has multiple different sub-parts, corresponding to different space characteristics, and all are quasi co-located with the first SSB part in a certain type (e.g. Type D), for example, the beams of the multiple second SSB part sub-parts are all sub-beams of the first SSB part.

[0120] In the embodiments of the present application, in one implementable manner, the first synchronization raster can be the center frequency point of the first SSB part, or the first synchronization raster can be the upper edge frequency point of the first SSB part, or the first synchronization raster can be the lower edge frequency point of the first SSB part, and all the three manners are implementable.

[0121] Specifically, in an embodiment, when the first synchronization raster is the center frequency point of the first SSB part, the first device detects the first SSB part at the first synchronization raster in S120, which can be specifically: the first device detects the first SSB part at the frequency domain position with each first synchronization raster as the center and the bandwidth being the bandwidth of the first SSB part.

[0122] In an embodiment, when the first synchronization raster is the upper edge frequency point of the first SSB part, the first device detects the first SSB part at the first synchronization raster in S120, which can be specifically: the first device detects the first SSB part at the frequency domain position with each first synchronization raster as the upper edge and the bandwidth being the bandwidth of the first SSB part.

[0123] In an embodiment, the first synchronization raster is an upper edge frequency point of the first SSB part, and the first device detects the first SSB part at the first synchronization raster in S120, which can be specifically: the first device detects the first SSB part at each first synchronization raster as a lower edge, and a frequency domain position with a bandwidth being the bandwidth of the first SSB part.

[0124] By setting the first synchronization raster as the center frequency point of the first SSB part, or as the upper edge frequency point of the first SSB part, or as the lower edge frequency point of the first SSB part, the first synchronization raster only refers to the first SSB part, so that the frequency interval of the synchronization raster can be increased by only reducing the bandwidth of the first SSB part, and the large bandwidth of the second SSB part is maintained to carry information, thereby the transmission period of the SSB can be increased without increasing the complexity and latency of the first device searching in the frequency domain, so as to achieve the purpose of network energy saving.

[0125] In an embodiment, the frequency point position or the frequency interval of the first synchronization raster is determined according to at least one of the following: the type of the first device, the frequency type, the frequency point type, the frequency band type, the frequency range, the network, and the network node type.

[0126] In an embodiment, the first SSB part includes at least one of the following:

[0127] all or part of PSS, all or part of SSS, a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of PBCH load, all or part of DMRS, a first part of main system information;

[0128] The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation.

[0129] The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation.

[0130] The time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

[0131] In an embodiment, the second SSB part includes at least one of the following:

[0132] all or part of SSS, all or part of PBCH load, all or part of DMRS, all or a second part of main system information, a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of system information (SIB).

[0133] In an embodiment, the first SSB part includes first indication information, and the first indication information is used to indicate at least one of the following:

[0134] a structure mode of the SSB, a feature of the second SSB part, whether the second SSB part exists, a format of the second SSB part, the first information of the target SSB or the first SSB part of the target SSB, wherein the feature comprises at least one of a time domain feature, a frequency domain feature, a power domain feature and a spatial domain feature, and the target SSB is an SSB other than the SSB.

[0135] The target SSB comprises at least one of the following:

[0136] the SSB with the second SSB part in other frequency domain, the SSB with the second SSB part in other time domain;

[0137] The first information comprises at least one of the following:

[0138] a frequency domain position or a frequency domain range of the SSB with the second SSB part;

[0139] a time domain period, a time domain position or a time domain range of the SSB with the second SSB part.

[0140] Specifically, the structure mode of the SSB may, for example, be one of the modes in FIG. 4, and the feature of the second SSB part may comprise at least one of a time domain feature (for example, offset), a frequency domain feature (for example, offset), a power domain feature (for example, power difference) and a spatial domain feature (for example, number of beams of the second SSB part). Optionally, the first indication information may explicitly or implicitly indicate the above information. For example, when indicating the structure mode of the SSB, the first indication information may indicate an index of the structure mode of the SSB. The first indication information may also indicate whether the second SSB part exists, and in some scenarios, the second SSB part does not exist. Optionally, the structure mode of the SSB, the feature of the second SSB part, whether the second SSB part exists and the format of the second SSB part may be jointly indicated or separately indicated by the first indication information. The first information of the first SSB part may be other information of the first SSB part, for example, information of the nearest first SSB comprising the second SSB part.

[0141] In this embodiment, at least one of the structure mode of the SSB, the feature of the second SSB part, whether the second SSB part exists and the format of the second SSB part is indicated by the first indication information, so that the first device may obtain the corresponding information according to the first indication information, and then perform the next operation.

[0142] Optionally, the indication manner of the first indication information comprises at least one of the following:

[0143] The PBCH payload carries, the DMRS information carries, the sequence of the PSS implicitly carries, the sequence of the SSS implicitly carries, the time domain relationship of the PSS and the SSS implicitly carries, the time synchronization signal carries, the frequency synchronization signal carries, the time-frequency synchronization signal carries, the tracking reference signal carries, one or more of the following: the scrambling code information of the time synchronization signal, the scrambling code information of the frequency synchronization signal, the scrambling code information of the time-frequency synchronization signal and the scrambling code information of the tracking reference signal, the SSB index information carries, the joint indication information carries.

[0144] In an embodiment, the first device processes the second SSB part according to the first SSB part in S130 includes:

[0145] The first device processes the second SSB part according to the feature of the second SSB part indicated by the first SSB part.

[0146] Specifically, in the embodiment, the feature of the second SSB part indicated by the first SSB part can be at least one of the time domain feature, the frequency domain feature, the power domain feature and the spatial domain feature, and the first device processes the second SSB part according to the feature of the second SSB part indicated by the first SSB part.

[0147] In an embodiment, the first device processes the second SSB part according to the first SSB part in S130 can be detecting the second SSB part according to the first SSB part, and can also be measuring or searching the second SSB part according to the first SSB part, etc.

[0148] For example, the first device detects the first SSB part in the first synchronization grid, and the first device processes the second SSB part according to the feature of the second SSB part indicated by the first SSB part can be part or all of the following detections according to the content of the two SSB parts:

[0149] First, detect the PSS sequence, obtain the physical cell ID according to the sequence correlation And obtain the preliminary time-frequency synchronization; then detect the SSS, obtain the physical cell ID according to the sequence correlation Thus, the complete physical cell ID (PCI) is obtained, that is The first device can further adjust the frequency offset based on the PSS and the SSS. Then the first device detects the DMRS of the PBCH for channel estimation and demodulates the PBCH.

[0150] Generally, the first device needs to buffer data before detection. Optionally, the method of the embodiment can further include:

[0151] S140, the first device caches data according to at least one of the following when initially searching:

[0152] caching data according to a protocol initially searching assumed SSB period in time domain;

[0153] caching samples of frequency domain regions where at least two SSB structure patterns can appear, centered on a first synchronization raster in frequency domain.

[0154] Specifically, the first device caches data according to a protocol initially searching assumed SSB period (e.g. 160ms) in time domain. The first device caches samples of frequency domain regions where all SSB structure patterns can appear, centered on a first synchronization raster in frequency domain. For example, candidate SSB structure patterns are pattern 1 and pattern 2 shown in FIG. 4, the first device needs to cache data centered on the first synchronization raster, with a bandwidth of BW SSBPart2，模式1 + BW SSBPart2，模式2 - BW SSB Part1 .

[0155] In the embodiment, by the first device caching data according to at least one of the above two ways when initially searching, the first device can detect the first SSB part and the second SSB part more quickly and reliably.

[0156] In an embodiment, the first SSB part satisfies at least one of the following:

[0157] The period of the first SSB part is greater than a first threshold, and the first threshold is determined according to at least one of the following:

[0158] a first preset threshold, a type of the first SSB part, time information where the first SSB part is located, frequency information where the first SSB part is located, a type of the first device, and a network type.

[0159] The first preset threshold can be a period threshold specified by a protocol. For example, the first threshold is 20ms, and the period of the SSB is greater than 20ms, which can be 40ms or 80ms or 160ms.

[0160] The frequency interval of the synchronization raster where the first SSB part is located is greater than or not less than a second threshold, and the second threshold is determined according to at least one of the following:

[0161] a second preset threshold, a type of the first SSB part, time information where the first SSB part is located, frequency information where the first SSB part is located, frequency band information where the first SSB part is located, a type of the first device, a network type, and a period of the first SSB part.

[0162] The second preset threshold value can be a step threshold value or a frequency interval threshold value specified by a protocol. For example, for a frequency band of [3000-24250 MHz], the second threshold value is 2.88 MHz, and the step of the SSB synchronization raster is greater than the step (1.44 MHz) assumed in NR.

[0163] The number of synchronization rasters in which the first SSB part is located is less than or equal to or less than a third threshold value on a preset bandwidth or a fixed-size bandwidth, and the third threshold value is determined according to at least one of the following:

[0164] The third preset threshold value, the type of the first SSB part, the time information in which the first SSB part is located, the frequency information in which the first SSB part is located, the frequency band information in which the first SSB part is located, the type of the first device, the network type, the period of the first SSB part, and the step of the synchronization raster in which the first SSB part is located.

[0165] The third preset threshold value can be a quantity threshold value specified by a protocol.

[0166] The bandwidth of the first SSB part is less than or equal to or less than a fourth threshold value, and the fourth threshold value is determined according to at least one of the following:

[0167] The fourth preset threshold value, the type of the first SSB part, the time information in which the first SSB part is located, the frequency information in which the first SSB part is located, the frequency band information in which the first SSB part is located, the type of the first device, the network type, the period of the first SSB part, and the step of the synchronization raster in which the first SSB part is located.

[0168] The fourth preset threshold value can be a bandwidth threshold value specified by a protocol. For example, the bandwidth of the first SSB part is less than 20 PRBs.

[0169] The period or default period of the first SSB part is a function of at least one of the following:

[0170] The period or default period of the first SSB part is a function of at least one of the following:

[0171] For example, the period or default period of the first SSB part is P, the bandwidth of the first SSB part is b, the maximum number of first SSB part indexes is m, and the subcarrier spacing of the first SSB part is s. For example, the period or default period of the first SSB part satisfies the following formulas (1), (2), or (3):

[0172] p=20*(b / 20)=b(ms)(1)

[0173] where p is in ms and b is in number of PRBs for all subcarrier spacing.

[0174] p = 20 * (b / 3600) = b (ms) (2)

[0175] where p is in ms and b is in Hz for all subcarrier spacing.

[0176] p = 20 * (b / 3600) * 2u (ms) (3)

[0177] where p is in ms, b is in Hz, and u = log2(s / 15), s is subcarrier spacing in kHz.

[0178] The number of synchronization raster or effective synchronization raster of the bandwidth where the first SSB part is located is a function of at least one of:

[0179] The periodicity or default periodicity of the first SSB part, the bandwidth, the maximum number of first SSB part indexes, the subcarrier spacing of the first SSB part, and the subcarrier spacing index of the first SSB part.

[0180] For example, the number of synchronization raster or effective synchronization raster of the bandwidth where the first SSB part is located is n, the periodicity or default periodicity of the first SSB part is P, and the maximum number of first SSB part indexes is m. The number of synchronization raster or effective synchronization raster of the bandwidth where the first SSB part is located satisfies the following equations (4), (5), (6), or (7):

[0181] n = p / 20 or n = ceil(p / 20) (4)

[0182] where p is in ms and ceil is the ceiling function.

[0183] or n = K * (p / 20) or n = K * ceil(p / 20) (5)

[0184] where p is in ms, ceil is the ceiling function, and K is a constant. K can be specified by a protocol or depends on at least one of the following: the type of the first SSB part, the time / frequency / band information where the first SSB part is located, the terminal to which the first SSB part is directed, the network type, the periodicity of the first SSB part, and the synchronization raster step size where the first SSB part is located.

[0185] n = p / 20 or n = (ceil(p / 20)) * 4 / m (6)

[0186] where p is in ms, ceil is the ceiling function, and m is the maximum number of SSBs in one SSB burst.

[0187] n = K * (p / 20) * 4 / m or n = K * (ceil(p / 20)) * 4 / m (7)

[0188] wherein p is in ms, ceil is the ceiling function, m is the number of SSBs in a SSB burst with the maximum number of SSBs, K is a constant, which can be specified by a protocol or determined based on at least one of the following: the type of the first SSB part, the time / frequency / band information where the first SSB part is located, the terminal to which the first SSB part is directed, the network type, the periodicity of the first SSB part, and the synchronization raster step size where the first SSB part is located.

[0189] In this embodiment, by setting the first SSB part to satisfy at least one of the above conditions, the combination of blind search of the first device can be reduced, and the complexity of the first device in frequency domain search can be reduced.

[0190] Therefore, in this embodiment, by setting the SSB to include the first SSB part and the second SSB part, and by sending the first SSB part to the first device by the second device, the first synchronization raster is related to the first SSB part, the first device detects the first SSB part in the first synchronization raster, and then processes the second SSB part according to the first SSB part. By this, the SSB is divided into the first SSB part and the second SSB part, the bandwidth and other parameters of the first SSB part and the second SSB part can be flexibly set, for example, the bandwidth of the first SSB part is reduced, and the bandwidth of the second SSB part is maintained. Since the first synchronization raster only refers to the first SSB part, the frequency interval of the synchronization raster can be increased by reducing the bandwidth of the first SSB part, and the second SSB part can carry information by maintaining the large bandwidth of the second SSB part. Therefore, the transmission period of the SSB can be increased, the complexity and latency of the first device in frequency domain search can be reduced, the network energy can be saved, and the flexibility of the SSB is also enhanced by splitting the SSB.

[0191] FIG. 5 is a schematic flowchart of a synchronization signal block processing method 200 provided by this embodiment, as shown in FIG. 5, the synchronization signal block processing method 200 can include at least part of the following contents:

[0192] S210, the second device sends the first SSB part to the first device.

[0193] In this embodiment, the second device only sends the first SSB part.

[0194] S220, the first device detects the first SSB part in the first synchronization raster.

[0195] S230, the first device sends a wake-up signal to the second device according to the first SSB part.

[0196] Specifically, in an embodiment, the first SSB part carries indication information indicating that the second SSB part is not transmitted but can be triggered by a wake-up signal for waking up transmission of the second SSB part. The first device transmits the wake-up signal to the second device according to the first SSB part. Specifically, the first device can first determine, according to the indication information carried in the first SSB part, that the second SSB part is not transmitted but can be triggered by the wake-up signal, and transmit the wake-up signal to the second device when it is determined that the second SSB part is needed for subsequent operations. Optionally, the first device waits for feedback from the second device after transmitting the wake-up signal.

[0197] S240, the second device transmits the second SSB part to the first device.

[0198] S250, after receiving the second SSB part transmitted by the second device, the first device processes the second SSB part according to the first SSB part.

[0199] In an embodiment, the first device processes the second SSB part according to the first SSB part, which can include detecting, searching or measuring the second SSB part according to the first SSB part.

[0200] In this embodiment, other related descriptions can be referred to the descriptions in the embodiment shown in FIG. 3, which will not be repeated here.

[0201] The processing method of the synchronization signal block provided in this embodiment includes the following steps: the second device transmits the first SSB part to the first device, the first device detects the first SSB part in the first synchronization raster, the first device transmits the wake-up signal to the second device according to the first SSB part, the second device transmits the second SSB part to the first device, and after receiving the second SSB part transmitted by the second device, the first device processes the second SSB part according to the first SSB part. Since the first synchronization raster only refers to the first SSB part, the frequency interval of the synchronization raster can be increased by only reducing the bandwidth of the first SSB part, and the transmission period of the SSB can be increased by maintaining the large bandwidth of the second SSB part to carry information, thereby reducing the complexity and latency of the first device in the frequency domain search, thereby achieving network energy saving. Moreover, the first device transmits the wake-up signal to the second device to wake up the transmission of the second SSB part only when the second SSB part is needed, which can reduce the periodic transmission of the second SSB part by the second device and further improve the network energy saving benefit. Furthermore, by dividing the SSB into the first SSB part and the second SSB part, the first SSB part and the second SSB part can be set with different bandwidths and other parameters, thereby enhancing the flexibility of the SSB.

[0202] In the embodiments of the present application, the first device can be a terminal and the second device can be a network side device.

[0203] FIG. 6 is a schematic flowchart of a synchronization signal block processing method 300 provided by an embodiment of the present application. As shown in FIG. 6, the synchronization signal block processing method 300 can include at least part of the following contents:

[0204] S310. The first device determines a first synchronization raster according to a device type of the first device.

[0205] S320. The first device performs cell search according to the first synchronization raster.

[0206] Specifically, in an embodiment, the synchronization raster for initial cell search of the first device is determined according to the device type of the first device. When the first device is a terminal, for example, the terminal is of a terminal type similar to Narrow Band Internet of Things (NB-IoT) or Redcap, a set of synchronization rasters is used; and a common eMBB terminal uses another set of synchronization rasters, because the minimum bandwidths of different types of terminals are different, which causes the difference in synchronization raster steps.

[0207] Optionally, the synchronization rasters of devices of different device types are in a mutual inclusion relationship, so that a network side device can simultaneously serve first devices of different types on one synchronization raster.

[0208] Optionally, the synchronization rasters of devices of different device types are completely different, so that the network side device can place different SSBs on different synchronization rasters.

[0209] In the embodiment, when the first device performs initial cell search, the first synchronization raster is determined according to the device type of the first device, so that initial access of terminal devices of different types can be supported.

[0210] The execution subject of the synchronization signal block processing method provided by the embodiment of the present application can be a synchronization signal block processing apparatus or a processing unit in the synchronization signal block processing apparatus for executing the synchronization signal block processing method. In the embodiment of the present application, the synchronization signal block processing apparatus is taken as an example to illustrate the synchronization signal block processing apparatus provided by the embodiment of the present application.

[0211] FIG. 7 is a schematic block diagram of a synchronization signal block processing apparatus 400 provided by an embodiment of the present application. As shown in FIG. 7, the synchronization signal block processing apparatus 400 includes a detection unit 410 and a processing unit 420.

[0212] The detection unit 410 is configured to detect a first synchronization signal block (SSB) part in a first synchronization raster, the first synchronization raster being related to the first SSB part.

[0213] The processing unit 420 is configured to process the second SSB part according to the first SSB part, the first SSB part and the second SSB part constituting an SSB.

[0214] In some embodiments, the processing unit 420 is further configured to:

[0215] transmit a wake-up signal to a second device according to the first SSB part;

[0216] receive the second SSB part transmitted by the second device.

[0217] In some embodiments, at least one of the following is different between the first SSB part and the second SSB part:

[0218] a center frequency point;

[0219] an upper edge frequency point;

[0220] a lower edge frequency point;

[0221] a frequency domain bandwidth;

[0222] a subcarrier alignment point;

[0223] a time domain period;

[0224] a transmission power;

[0225] a power spectral density;

[0226] an equivalent isotropically radiated power;

[0227] a bit signal-to-noise ratio;

[0228] a number of SSBs in a spatial domain in one period;

[0229] an index of a spatial domain SSB.

[0230] In some embodiments, the first synchronization raster is a center frequency point of the first SSB part, and the detection unit 410 is configured to:

[0231] detect the first SSB part at a frequency domain position with each of the first synchronization raster as a center and a bandwidth being a bandwidth of the first SSB part.

[0232] In some embodiments, the first synchronization raster is an upper edge frequency point of the first SSB part, and the detection unit 410 is configured to:

[0233] detect the first SSB part at a frequency domain position with each of the first synchronization raster as an upper edge and a bandwidth being a bandwidth of the first SSB part; or

[0234] The first synchronization raster is a lower edge frequency point of the first SSB part, and the detection unit is configured to:

[0235] In each of the first synchronization raster is a lower edge, and a frequency domain position of a bandwidth of the first SSB part is detected as the bandwidth of the first SSB part.

[0236] In some embodiments, a frequency point position or a frequency interval of the first synchronization raster is determined according to at least one of the following:

[0237] The type of the first device, the frequency type, the frequency point type, the frequency band type, the frequency range, the network, the network node type.

[0238] In some embodiments, the first SSB part includes at least one of the following:

[0239] All or part of a primary synchronization signal PSS, all or part of a secondary synchronization signal SSS, a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of a physical broadcast channel PBCH load, all or part of a demodulation reference signal DMRS, a first part of main system information;

[0240] The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation;

[0241] The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation;

[0242] The time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

[0243] In some embodiments, the second SSB part includes at least one of the following:

[0244] All or part of SSS, all or part of PBCH load, all or part of DMRS, all or a second part of main system information, a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of system information SIB;

[0245] The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation;

[0246] The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation;

[0247] The time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

[0248] In some embodiments, the first SSB portion comprises first indication information, the first indication information being used for indicating at least one of:

[0249] a structure pattern of the SSB, a feature of the second SSB portion, whether the second SSB portion exists, a format of the second SSB portion, a target SSB or first information of a first SSB portion of the target SSB, wherein the feature comprises at least one of a time domain feature, a frequency domain feature, a power domain feature and a spatial domain feature, and the target SSB is an SSB other than the SSB.

[0250] wherein the target SSB comprises at least one of:

[0251] an SSB with a second SSB portion in other frequency domain, an SSB with a second SSB portion in other time domain;

[0252] the first information comprises at least one of:

[0253] a frequency domain location or a frequency domain range of the SSB with the second SSB portion;

[0254] a time domain period, a time domain location or a time domain range of the SSB with the second SSB portion.

[0255] In some embodiments, the indication manner of the first indication information comprises at least one of:

[0256] a PBCH payload carrying, a DMRS information carrying, a sequence of a PSS implicitly carrying, a sequence of a SSS implicitly carrying, a time domain relationship of a PSS and a SSS implicitly carrying, a time synchronization signal carrying, a frequency synchronization signal carrying, a time and frequency synchronization signal carrying, a tracking reference signal carrying, one or more of scrambling code information of a time synchronization signal, scrambling code information of a frequency synchronization signal, scrambling code information of a time and frequency synchronization signal and scrambling code information of a tracking reference signal carrying, the SSB index information carrying, joint indication information carrying.

[0257] In some embodiments, the detection unit 410 is configured to:

[0258] processing the second SSB portion according to the feature of the second SSB portion indicated by the first SSB portion.

[0259] In some embodiments, the feature of the second SSB portion comprises at least one of a time domain feature, a frequency domain feature, a power domain feature and a spatial domain feature of the second SSB portion.

[0260] In some embodiments, the processing unit 420 is further configured to:

[0261] The data is cached according to at least one of the following when performing an initial search:

[0262] The data is cached according to an initial search hypothesis of a SSB period of a protocol in a time domain;

[0263] In a frequency domain, a sampling of a frequency domain region in which at least two SSB structure patterns can appear is cached with the first synchronization raster as a center.

[0264] In some embodiments, the first SSB part satisfies at least one of the following:

[0265] A period of the first SSB part is greater than a first threshold value, and the first threshold value is determined according to at least one of the following:

[0266] A first preset threshold value, a type of the first SSB part, time information in which the first SSB part is located, frequency information in which the first SSB part is located, a type of the first device, and a network type;

[0267] A frequency interval of a synchronization raster in which the first SSB part is located is greater than or not less than a second threshold value, and the second threshold value is determined according to at least one of the following:

[0268] A second preset threshold value, a type of the first SSB part, time information in which the first SSB part is located, frequency information in which the first SSB part is located, frequency band information in which the first SSB part is located, a type of the first device, a network type, and a period of the first SSB part;

[0269] A number of synchronization rasters in which the first SSB part is located is less than or equal to or less than a third threshold value on a preset bandwidth or a fixed size of bandwidth, and the third threshold value is determined according to at least one of the following:

[0270] A third preset threshold value, a type of the first SSB part, time information in which the first SSB part is located, frequency information in which the first SSB part is located, frequency band information in which the first SSB part is located, a type of the first device, a network type, a period of the first SSB part, and a step size of the synchronization raster in which the first SSB part is located;

[0271] A bandwidth of the first SSB part is less than or equal to or less than a fourth threshold value, and the fourth threshold value is determined according to at least one of the following:

[0272] A fourth preset threshold value, a type of the first SSB part, time information in which the first SSB part is located, frequency information in which the first SSB part is located, frequency band information in which the first SSB part is located, a type of the first device, a network type, a period of the first SSB part, and a step size of the synchronization raster in which the first SSB part is located.

[0273] a periodicity or a default periodicity of the first SSB portion is a function of at least one of:

[0274] at least one of a bandwidth of the first SSB portion, a maximum number of the first SSB portion indexes, a subcarrier spacing of the first SSB portion, and a subcarrier spacing index of the first SSB portion;

[0275] a number of synchronization raster or a number of valid synchronization raster of a bandwidth where the first SSB portion is located is a function of at least one of:

[0276] a periodicity or a default periodicity, a bandwidth, a maximum number of the first SSB portion indexes, a subcarrier spacing of the first SSB portion, and a subcarrier spacing index of the first SSB portion.

[0277] FIG. 8 is a schematic block diagram of a synchronization signal block processing apparatus 500 according to an embodiment of the present application. As shown in FIG. 8, the synchronization signal block processing apparatus 500 includes a sending unit 510.

[0278] The sending unit 510 is configured to send a first synchronization signal block (SSB) portion to a first device, the first SSB portion being associated with a first synchronization raster.

[0279] The first SSB portion is a part of an SSB, and the SSB further includes a second SSB portion.

[0280] In some embodiments, the sending unit 510 is configured to send the SSB to the first device.

[0281] In some embodiments, the synchronization signal block processing apparatus 500 can further include a receiving unit configured to receive a wake-up signal sent by the first device according to the first SSB portion.

[0282] The sending unit 510 is further configured to send the second SSB portion to the first device.

[0283] In some embodiments, the first SSB portion includes at least one of:

[0284] a primary synchronization signal (PSS), all or part of a secondary synchronization signal (SSS), a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of a physical broadcast channel (PBCH) payload, all or part of a demodulation reference signal (DMRS), a first part of primary system information.

[0285] The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation.

[0286] The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation;

[0287] The time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

[0288] In some embodiments, the second SSB part comprises at least one of:

[0289] All or part of the SSS, all or part of the PBCH payload, all or part of the DMRS, all or part of the main system information, a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of the system information SIB.

[0290] In some embodiments, the first SSB part comprises first indication information, the first indication information being used to indicate at least one of:

[0291] The structure mode of the SSB, the feature of the second SSB part, whether the second SSB part exists, the format of the second SSB part, the target SSB or the first information of the first SSB part of the target SSB, wherein the feature comprises at least one of a time domain feature, a frequency domain feature, a power domain feature and a spatial domain feature.

[0292] Wherein the target SSB comprises at least one of:

[0293] The SSB with the second SSB part existing in other frequency domain, the SSB with the second SSB part existing in other time domain;

[0294] The first information comprises at least one of:

[0295] The frequency domain position or frequency domain range where the SSB with the second SSB part exists;

[0296] The time domain period, time domain position or time domain range of the SSB with the second SSB part.

[0297] In some embodiments, the indication manner of the first indication information comprises at least one of:

[0298] PBCH payload carrying, DMRS information carrying, PSS sequence implicit carrying, SSS sequence implicit carrying, time domain relationship between PSS and SSS implicit carrying, time synchronization signal carrying, frequency synchronization signal carrying, time-frequency synchronization signal carrying, tracking reference signal carrying, one or more of scrambling code information of the time synchronization signal, scrambling code information of the frequency synchronization signal, scrambling code information of the time-frequency synchronization signal and scrambling code information of the tracking reference signal carrying, the SSB index information carrying, joint indication information carrying.

[0299] In some embodiments, the first SSB portion satisfies at least one of the following:

[0300] A periodicity of the first SSB portion is greater than a first threshold, the first threshold being determined according to at least one of the following:

[0301] A first preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, a type of the first device, and a network type;

[0302] A frequency interval of a synchronization raster in which the first SSB portion is located is greater than or not less than a second threshold, the second threshold being determined according to at least one of the following:

[0303] A second preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, and a periodicity of the first SSB portion;

[0304] A number of synchronization rasters in which the first SSB portion is located is less than or equal to or less than a third threshold on a preset bandwidth or a fixed size of bandwidth, the third threshold being determined according to at least one of the following:

[0305] A third preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, a periodicity of the first SSB portion, and a step size of the synchronization raster in which the first SSB portion is located;

[0306] A bandwidth of the first SSB portion is less than or equal to or less than a fourth threshold, the fourth threshold being determined according to at least one of the following:

[0307] A fourth preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, a periodicity of the first SSB portion, and a step size of the synchronization raster in which the first SSB portion is located.

[0308] The periodicity or a default periodicity of the first SSB portion is a function of at least one of the following:

[0309] at least one of a bandwidth of the first SSB portion, a maximum number of the first SSB portion indexes, a subcarrier spacing of the first SSB portion, and a subcarrier spacing index of the first SSB portion;

[0310] a function of at least one of a number of synchronization raster or a number of effective synchronization raster of a bandwidth where the first SSB portion is located.

[0311] a function of at least one of a periodicity or a default periodicity of the first SSB portion, a bandwidth, a maximum number of the first SSB portion indexes, a subcarrier spacing of the first SSB portion, and a subcarrier spacing index of the first SSB portion.

[0312] The processing apparatus of the synchronization signal block in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in the electronic device, for example, an integrated circuit or a chip. The electronic device can be a terminal or a network side device, or other devices than the terminal or the network side device. Exemplarily, the terminal can include, but is not limited to, the types of the terminal 11 listed above, the network side device can include, but is not limited to, the types of the network side device 12 listed above, and the other devices can be a server, a network attached storage (NAS), etc., which are not limited in the embodiments of the present application.

[0313] The processing apparatus of the synchronization signal block provided in the embodiments of the present application can realize each process realized by the method embodiment of FIG. 3 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0314] As shown in FIG. 9, FIG. 9 is a structural schematic diagram of a communication device 600 provided in the embodiments of the present application, which includes a processor 601 and a memory 602, and the memory 602 stores programs or instructions executable on the processor 601.

[0315] For example, when the communication device 600 is a terminal, each step performed by the terminal in the processing method embodiments of the synchronization signal block is realized when the programs or instructions are executed by the processor 601, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0316] For another example, when the communication device 600 is a network side device, each step performed by the network side device in the processing method embodiments of the synchronization signal block is realized when the programs or instructions are executed by the processor 601, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0317] The embodiment of the present application further provides a terminal comprising a processor and a communication interface, the communication interface being coupled with the processor, and the processor being configured to run programs or instructions to implement the steps performed by the terminal in the method embodiment shown in FIG. 3. The terminal embodiment corresponds to the terminal-side method embodiment described above, and each implementation process and implementation manner of the method embodiment described above can be applied to the terminal embodiment and achieve the same technical effects. The terminal can be the processing device of the synchronization signal block shown in FIG. 7. Specifically, FIG. 10 is a schematic diagram of the hardware structure of a terminal for implementing the embodiment of the present application.

[0318] The terminal 700 includes, but is not limited to, at least some of a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0319] Those skilled in the art can understand that the terminal 700 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 710 through a power management system, so as to realize the functions of power management, such as charging, discharging, and power consumption management, through the power management system. The terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which will not be described here.

[0320] It should be understood that in the embodiment of the present application, the input unit 704 can include a graphics processor (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 can include a display panel 7061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 can include two parts of a touch detection device and a touch controller. The other input devices 7072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, etc., which will not be described here.

[0321] In the embodiment of the present application, the radio frequency unit 701 can transmit the downlink data received from the network side device to the processor 710 for processing, and can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0322] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 709 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0323] The processor 710 can include at least one processing unit; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes SSB transmission signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 710.

[0324] The radio frequency unit 701 is configured to detect or receive the SSB.

[0325] The SSB satisfies at least one of the following conditions: frequency division multiplexing (FDM) between the SSB and other SSBs, FDM between different parts in the SSB, use of interleaved resources, location in a specific bandwidth, association with a specific waveform.

[0326] The specific bandwidth has a width less than or equal to a first threshold, and the specific waveform corresponds to a bandwidth greater than or equal to a second threshold on the unlicensed spectrum.

[0327] It can be understood that the implementation processes of the implementation manners mentioned in the embodiments can refer to the related descriptions of the method embodiments and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0328] The embodiments of the present application also provide a network side device, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is configured to run programs or instructions to implement the steps performed by the network side device in the method embodiments shown in FIG. 3. The network side device embodiments correspond to the network side device method embodiments described above. The implementation processes and implementation manners of the method embodiments described above can be applied to the network side device embodiments and can achieve the same technical effects. To be brief, details are not described herein again.

[0329] Specifically, the embodiments of the present application also provide a network side device, which can be the synchronization signal block processing apparatus shown in FIG. 8. FIG. 11 is a structural schematic diagram of a network side device provided by the embodiments of the present application. As shown in FIG. 11, the network side device 800 includes an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected with the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends the information to the radio frequency device 82. The radio frequency device 82 processes the received information and sends the information out through the antenna 81.

[0330] The method performed by the network side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0331] The baseband device 83 may, for example, include at least one baseband board, which is provided with at least two chips, as shown in FIG. 12. One of the chips is, for example, a baseband processor, which is connected with the memory 85 through a bus interface to call programs in the memory 85 and perform the network device operations shown in the above method embodiments.

[0332] The network side device may, for example, also include a network interface 86, which is, for example, a common public radio interface (Common Public Radio Interface, CPRI).

[0333] Specifically, the network side device 800 of the embodiment of the present application further comprises instructions or programs stored on the storage 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the storage 85 to execute the method performed by the units shown in FIG. 9, and achieves the same technical effects. To avoid repetition, details are not described herein.

[0334] The embodiment of the present application further provides a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by a processor to implement various processes of the synchronization signal block processing method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0335] The processor is a processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0336] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used for running programs or instructions to implement various processes of the synchronization signal block processing method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0337] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0338] The embodiment of the present application further provides a computer program / program product, the computer program / program product is stored in a storage medium, the computer program / program product is executed by at least one processor to implement various processes of the synchronization signal block processing method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0339] The embodiment of the present application further provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps executed by the terminal in the synchronization signal block processing method, and the network side device can be used to execute the steps executed by the network side device in the synchronization signal block processing method.

[0340] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or "includes a", does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus of the present embodiments are not limited by the order of the steps or the sequences of the steps, as some steps can occur simultaneously, in other steps can occur sequentially, or in other steps can occur in an alternate order, depending on the implementation. Also, features described with respect to certain examples can be combined in other examples.

[0341] From the above description of the embodiments, it is clear that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and the computer software product includes a plurality of instructions for making a terminal or a network side device execute the method of each embodiment of the present application.

[0342] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, but not restrictive, and a person of ordinary skill in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A method for processing a synchronization signal block, comprising: detecting, by a first device, a first synchronization signal block (SSB) part at a first synchronization raster, the first synchronization raster being associated with the first SSB part; processing, by the first device, a second SSB part according to the first SSB part, the first SSB part and the second SSB part constituting a SSB.

2. The method of claim 1, wherein, Before the processing, by the first device, of the second SSB part according to the first SSB part, further comprising: sending, by the first device, a wake-up signal to a second device according to the first SSB part.

3. The method of claim 1 or 2, wherein, The first SSB part and the second SSB part are different in at least one of: a center frequency point; an upper edge frequency point; a lower edge frequency point; a frequency domain bandwidth; a subcarrier alignment point; a time domain period; a transmission power; a power spectral density; an equivalent isotropically radiated power; a bit signal-to-noise ratio; a number of SSBs in a spatial domain in a period; an index of a spatial domain SSB.

4. The method according to any one of claims 1 to 3, wherein, The first synchronization raster is a center frequency point of the first SSB part, and the detecting, by the first device, of the first SSB part at the first synchronization raster comprises: detecting, by the first device, the first SSB part at a frequency domain location with a bandwidth of the bandwidth of the first SSB part and a center at each of the first synchronization rasters.

5. The method according to any one of claims 1-3, wherein, The first synchronization raster is an upper edge frequency point of the first SSB part, and the detecting, by the first device, of the first SSB part at the first synchronization raster comprises: detecting, by the first device, the first SSB part at a frequency domain location with a bandwidth of the bandwidth of the first SSB part and an upper edge at each of the first synchronization rasters.

6. The method according to any one of claims 1-3, wherein, The first synchronization raster is a lower edge frequency point of the first SSB part, and the detecting, by the first device, of the first SSB part at the first synchronization raster comprises: detecting, by the first device, the first SSB part at a frequency domain location with a bandwidth of the bandwidth of the first SSB part and a lower edge at each of the first synchronization rasters.

7. The method according to any one of claims 1-6, wherein, The frequency point location or frequency interval of the first synchronization raster is determined according to at least one of: a type of the first device, a frequency type, a frequency point type, a frequency band type, a frequency range, a network, a network node type.

8. The method of any one of claims 1-7, wherein, The first SSB part comprises at least one of: a primary synchronization signal (PSS), all or part of a secondary synchronization signal (SSS), a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of a physical broadcast channel (PBCH) payload, all or part of a demodulation reference signal (DMRS), a first part of main system information; wherein the time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation; the frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation; the time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

9. The method according to any one of claims 1-7, wherein, The second SSB part comprises at least one of: all or part of the SSS, all or part of the PBCH payload, all or part of the DMRS, all or part of the primary system information, all or part of the secondary system information, a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, a system information SIB, or all or part of the SIB; The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation. The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation. The time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

10. The method according to any one of claims 1-7, wherein, The first SSB part includes first indication information, and the first indication information is used to indicate at least one of the following: a structure mode of the SSB, a feature of the second SSB part, whether the second SSB part exists, a format of the second SSB part, a target SSB or first information of a first SSB part of the target SSB, wherein the feature includes at least one of a time domain feature, a frequency domain feature, a power domain feature, and a spatial domain feature, and the target SSB is an SSB other than the SSB; The target SSB includes at least one of the following: an SSB having a second SSB part in another frequency domain, and an SSB having a second SSB part in another time domain; The first information includes at least one of the following: a frequency domain location or a frequency domain range of the SSB having the second SSB part; a time domain period, a time domain location, or a time domain range of the SSB having the second SSB part.

11. The method of claim 10, wherein, The indication manner of the first indication information includes at least one of the following: PBCH payload carrying, DMRS information carrying, PSS sequence implicit carrying, SSS sequence implicit carrying, PSS and SSS time domain relationship implicit carrying, time synchronization signal carrying, frequency synchronization signal carrying, time-frequency synchronization signal carrying, tracking reference signal carrying, one or more of scrambling code information of the time synchronization signal, scrambling code information of the frequency synchronization signal, scrambling code information of the time-frequency synchronization signal, and scrambling code information of the tracking reference signal carrying, SSB index information carrying, and joint indication information carrying.

12. The method of claim 10, wherein, The first device processes the second SSB part according to the first SSB part, including: The first device processes the second SSB part according to the feature of the second SSB part indicated by the first SSB part.

13. The method of claim 12, wherein, The feature of the second SSB part includes at least one of a time domain feature, a frequency domain feature, a power domain feature, and a spatial domain feature of the second SSB part.

14. The method of any one of claims 1-13, wherein, The method further includes: The first device caches data according to at least one of the following during initial search: caching data according to an SSB period assumed by a protocol during initial search in a time domain; caching samples of a frequency domain region in which at least two structure modes of SSBs can appear, with the first synchronization raster as a center in a frequency domain.

15. The method of any one of claims 1-14, wherein, The first SSB part satisfies at least one of the following: a periodicity of the first SSB portion is greater than a first threshold, the first threshold being determined according to at least one of: a first preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, a type of the first device, and a network type; a frequency interval of a synchronization raster in which the first SSB portion is located is greater than or not less than a second threshold, the second threshold being determined according to at least one of: a second preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, and a periodicity of the first SSB portion; a number of synchronization rasters in which the first SSB portion is located is less than or equal to or less than a third threshold on a preset bandwidth or a fixed size of bandwidth, the third threshold being determined according to at least one of: a third preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, a periodicity of the first SSB portion, and a step size of the synchronization raster in which the first SSB portion is located; a bandwidth of the first SSB portion is less than or equal to or less than a fourth threshold, the fourth threshold being determined according to at least one of: a fourth preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, a periodicity of the first SSB portion, and a step size of the synchronization raster in which the first SSB portion is located; a periodicity of the first SSB portion or a default periodicity is a function of at least one of: a bandwidth of the first SSB portion, a maximum number of the first SSB portion indexes, a subcarrier spacing of the first SSB portion, and a subcarrier spacing index of the first SSB portion; a number of synchronization rasters or a number of effective synchronization rasters of a bandwidth in which the first SSB portion is located is a function of at least one of: a periodicity of the first SSB portion or a default periodicity, a bandwidth, a maximum number of the first SSB portion indexes, a subcarrier spacing of the first SSB portion, and a subcarrier spacing index of the first SSB portion.

16. A SSB transmission method, comprising: a second device sending a first synchronization signal block (SSB) portion to a first device, the first SSB portion being related to a first synchronization raster; wherein the first SSB portion is a part of an SSB, and the SSB further comprises a second SSB portion.

17. The method of claim 16, wherein, the second device sending a first synchronization signal block (SSB) portion to a first device, comprising: the second device sending the SSB to the first device.

18. The method of claim 16, wherein, the method further comprising: The second device receives a wake-up signal sent by the first device according to the first SSB part; The second device sends the second SSB part to the first device.

19. The method of any one of claims 16-18, wherein, The first SSB part and the second SSB part are different in at least one of the following: A center frequency point; An upper edge frequency point; A lower edge frequency point; A frequency domain bandwidth; A subcarrier alignment point; A time domain period; A transmission power; A power spectral density; An equivalent isotropically radiated power; A bit signal-to-noise ratio; The number of SSBs in a spatial domain in one period; The index of the SSB in the spatial domain.

20. The method of any one of claims 16-19, wherein, The first synchronization raster is any of the following: The center frequency point of the first SSB part; The upper edge frequency point of the first SSB part; The lower edge frequency point of the first SSB part.

21. The method of any one of claims 16-20, wherein, The first SSB part includes at least one of the following: A primary synchronization signal (PSS), all or part of a secondary synchronization signal (SSS), a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of a physical broadcast channel (PBCH) payload, all or part of a demodulation reference signal (DMRS), a first part of main system information; The time synchronization signal is used for time synchronization or channel estimation and tracking required for PBCH demodulation; The frequency synchronization signal is used for frequency synchronization or channel estimation and tracking required for demodulation; The time-frequency synchronization signal is used for time-frequency synchronization or channel estimation and tracking required for demodulation.

22. The method of any one of claims 16-21, wherein, The second SSB part includes at least one of the following: All or part of an SSS, all or part of a PBCH payload, all or part of a DMRS, all or a second part of main system information, a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of system information (SIB); The time synchronization signal is used for time synchronization or channel estimation and tracking required for PBCH demodulation; The frequency synchronization signal is used for frequency synchronization or channel estimation and tracking required for demodulation; The time-frequency synchronization signal is used for time-frequency synchronization or channel estimation and tracking required for demodulation.

23. The method of any one of claims 16-22, wherein, The first SSB part includes first indication information, which is used to indicate at least one of the following: The structure mode of the SSB, the characteristics of the second SSB part, whether the second SSB part exists, the format of the second SSB part, a target SSB or first information of a first SSB part of the target SSB, wherein the characteristics include at least one of a time domain characteristic, a frequency domain characteristic, a power domain characteristic, and a spatial domain characteristic; The target SSB includes at least one of the following: An SSB that has a second SSB part in another frequency domain, and an SSB that has a second SSB part in another time domain; The first information includes at least one of the following: The frequency domain location or frequency domain range of the SSB that has the second SSB part; The time domain period, time domain location, or time domain range of the SSB that has the second SSB part.

24. The method of claim 23, wherein, The indication manner of the first indication information includes at least one of the following: The PBCH payload carries, the DMRS information carries, the sequence of the PSS implicitly carries, the sequence of the SSS implicitly carries, the time domain relationship of the PSS and the SSS implicitly carries, the time synchronization signal carries, the frequency synchronization signal carries, the time and frequency synchronization signal carries, the tracking reference signal carries, one or more of the following: the scrambling code information of the time synchronization signal, the scrambling code information of the frequency synchronization signal, the scrambling code information of the time and frequency synchronization signal, and the scrambling code information of the tracking reference signal, the SSB index information carries, and the joint indication information carries.

25. The method of any one of claims 16-24, wherein, The first SSB portion satisfies at least one of the following: A period of the first SSB portion is greater than a first threshold, and the first threshold is determined according to at least one of the following: a first preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, a type of the first device, and a network type; A frequency interval of a synchronization raster in which the first SSB portion is located is greater than or not less than a second threshold, and the second threshold is determined according to at least one of the following: a second preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, and a period of the first SSB portion; A number of synchronization rasters in which the first SSB portion is located is less than or equal to or less than a third threshold on a preset bandwidth or a fixed size of bandwidth, and the third threshold is determined according to at least one of the following: a third preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, a period of the first SSB portion, and a step of the synchronization raster in which the first SSB portion is located; A bandwidth of the first SSB portion is less than or equal to or less than a fourth threshold, and the fourth threshold is determined according to at least one of the following: a fourth preset threshold, a type of the first SSB portion, time information in which the first SSB portion is located, frequency information in which the first SSB portion is located, frequency band information in which the first SSB portion is located, a type of the first device, a network type, a period of the first SSB portion, and a step of the synchronization raster in which the first SSB portion is located; The period or default period of the first SSB portion is a function of at least one of the following: a bandwidth of the first SSB portion, a maximum number of the first SSB portion index, a subcarrier spacing of the first SSB portion, and a function of at least one of the following: a subcarrier spacing index of the first SSB portion. A number of synchronization raster or effective synchronization raster of a bandwidth where the first SSB part is located is a function of at least one of a periodicity or a default periodicity of the first SSB part, a bandwidth, a maximum number of the first SSB part indexes, a subcarrier spacing of the first SSB part, and a subcarrier spacing index of the first SSB part.

26. An apparatus for processing a synchronization signal block, comprising: a detecting unit configured to detect a first synchronization signal block (SSB) part at a first synchronization raster, the first synchronization raster being associated with the first SSB part; a processing unit configured to process a second SSB part according to the first SSB part, the first SSB part and the second SSB part constituting an SSB.

27. The apparatus of claim 26, wherein, The processing unit is further configured to: transmit a wake-up signal to a second device according to the first SSB part before processing the second SSB part according to the first SSB part.

28. The apparatus of claim 26 or 27, wherein, The first SSB part and the second SSB part are different in at least one of: a center frequency point; an upper edge frequency point; a lower edge frequency point; a frequency domain bandwidth; a subcarrier alignment point; a time domain periodicity; a transmission power; a power spectral density; an equivalent isotropically radiated power; a bit signal-to-noise ratio; a number of SSBs in a spatial domain within one periodicity; an index of a spatial domain SSB.

29. The apparatus of any of claims 26-28, wherein, The first synchronization raster is a center frequency point of the first SSB part, and the detecting unit is configured to: detect the first SSB part at a frequency domain location where each of the first synchronization raster is a center and a bandwidth is a bandwidth of the first SSB part.

30. The apparatus of any of claims 26-28, wherein, The first synchronization raster is an upper edge frequency point of the first SSB part, and the detecting unit is configured to: detect the first SSB part at a frequency domain location where each of the first synchronization raster is an upper edge and a bandwidth is a bandwidth of the first SSB part.

31. The apparatus of any one of claims 26-30, wherein, A frequency point location or a frequency interval of the first synchronization raster is determined according to at least one of: a type of the first device, a frequency type, a frequency point type, a frequency band type, a frequency range, a network, a network node type.

32. An apparatus for processing a synchronization signal block, comprising: a transmitting unit configured to transmit a first synchronization signal block (SSB) part to a first device, the first SSB part being associated with a first synchronization raster; wherein the first SSB part is a part of an SSB, and the SSB further comprises a second SSB part.

33. The apparatus of claim 32, wherein, The transmitting unit is configured to: transmit the SSB to the first device.

34. The apparatus of claim 32, wherein, The apparatus further comprises: a receiving unit configured to receive a wake-up signal transmitted by the first device according to the first SSB part; The transmitting unit is further configured to transmit the second SSB part to the first device.

35. The apparatus of any one of claims 32-34, wherein, The first synchronization raster is any one of: a center frequency point of the first SSB part; an upper edge frequency point of the first SSB part; a lower edge frequency point of the first SSB part.

36. The apparatus of any one of claims 32-35, wherein, The first SSB part comprises at least one of: all or part of a primary synchronization signal (PSS), all or part of a secondary synchronization signal (SSS), a time synchronization signal, a frequency synchronization signal, a time-frequency synchronization signal, all or part of a physical broadcast channel (PBCH) payload, all or part of a demodulation reference signal (DMRS), a first part of primary system information; wherein the time synchronization signal is used for time synchronization or for channel estimation and tracking needed for PBCH demodulation; the frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking needed for demodulation; the time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking needed for demodulation.

37. A first device comprising a transceiver, a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement steps of the processing method of a synchronization signal block according to any one of claims 1 to 15.

38. A second device comprising a transceiver, a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement steps of the processing method of a synchronization signal block according to any one of claims 16 to 25.

39. A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions, when executed by a processor, implement steps of the processing method of a synchronization signal block according to any one of claims 1 to 15, or implement steps of the processing method of a synchronization signal block according to any one of claims 16 to 25.

40. A chip comprising a processor and a communication interface, the communication interface and the processor coupled, the processor configured to execute programs or instructions, implement steps of the processing method of a synchronization signal block according to any one of claims 1 to 15, or implement steps of the processing method of a synchronization signal block according to any one of claims 16 to 25.

Images