Synchronization signal block processing method, device and equipment

Abstract

Disclosed are a synchronization signal block processing method, apparatus and device, belonging to the field of communications, the synchronization signal block processing method of the embodiment of the present application comprising: a first device detecting a first synchronization signal block (SSB) portion at a first synchronization grid, the first synchronization grid being related to the first SSB portion, and the first equipment processes the second SSB part according to the first SSB part, and the first SSB part and the second SSB part form an SSB. Therefore, the frequency interval of the synchronization grid can be increased, the sending period of the SSB can be increased, and the complexity and time delay of searching on the frequency domain by the first equipment are reduced, so that network energy saving is realized.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a method, apparatus, and device for processing synchronization signal blocks. Background Technology

[0002] In 5G NR, due to the potentially very large channel bandwidth, searching for synchronization signals by the terminal according to the channel raster would be time-consuming and power-intensive. Therefore, the concept of a synchronization raster is introduced, where synchronization signals are placed according to the synchronization raster. The minimum bandwidth supported by the NR system is 5MHz. The design of the synchronization raster must ensure that at least one usable synchronization raster exists within a 5MHz bandwidth spectrum at any frequency location, and that the synchronization signal block centered on this synchronization raster is contained within the 5MHz channel bandwidth. The design of the synchronization raster needs to maximize the frequency spacing of the synchronization raster while meeting network deployment requirements, in order to reduce the search time and complexity during initial terminal access.

[0003] However, for the current synchronous grid design, the search time during initial terminal access is still relatively long, and the search complexity is still relatively high. Summary of the Invention

[0004] This application provides a method, apparatus, and device for processing synchronization signal blocks, which can reduce the complexity and latency of terminal searching in the frequency domain.

[0005] Firstly, a method for processing synchronization signal blocks is provided, including:

[0006] The first device detects the first synchronization signal block (SSB) portion of the first synchronization grid, and the first synchronization grid is associated with the first SSB portion;

[0007] The first device processes the second SSB portion based on the first SSB portion, and the first SSB portion and the second SSB portion together form an SSB.

[0008] Secondly, a method for processing synchronization signal blocks is provided, including:

[0009] The second device sends a first synchronization signal block (SSB) portion to the first device, the first SSB portion being associated with the first synchronization grid.

[0010] The first SSB portion is a part of the SSB, and the SSB also includes a second SSB portion.

[0011] Thirdly, a processing apparatus for a synchronization signal block is provided, comprising:

[0012] A detection unit is configured to detect a portion of a first synchronization signal block (SSB) within a first synchronization grid, wherein the first synchronization grid is associated with the first SSB portion.

[0013] The processing unit is configured to process the second SSB portion according to the first SSB portion, wherein the first SSB portion and the second SSB portion constitute an SSB.

[0014] Fourthly, a processing apparatus for a synchronization signal block is provided, comprising:

[0015] A transmitting unit is configured to transmit a first synchronization signal block (SSB) portion to a first device, wherein the first SSB portion is associated with a first synchronization grid.

[0016] The first SSB portion is a part of the SSB, and the SSB also includes a second SSB portion.

[0017] Fifthly, a processing apparatus for a synchronization signal block is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0018] In a sixth aspect, a terminal is provided, the terminal including a transceiver, a processor, and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0019] In a seventh aspect, a first device is provided, including a processor and a communication interface;

[0020] The communication interface is used to detect the first synchronization signal block (SSB) portion of the first synchronization grid, and the first synchronization grid is associated with the first SSB portion.

[0021] The second SSB portion is processed based on the first SSB portion, and the first SSB portion and the second SSB portion together form an SSB.

[0022] Eighthly, a network-side device is provided, the network-side device including a transceiver, a processor, and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0023] In a ninth aspect, a second device is provided, including a processor and a communication interface;

[0024] The communication interface is used to send a first synchronization signal block (SSB) portion to the first device, and the first SSB portion is related to the first synchronization grid.

[0025] The first SSB portion is a part of the SSB, and the SSB also includes a second SSB portion.

[0026] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0027] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method described in the first aspect, and the network-side device can be used to perform the steps of the method described in the second aspect.

[0028] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0029] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and executed by at least one processor to implement the steps of the processing method for a synchronization signal block as described in the first or second aspect.

[0030] In this embodiment, a first device detects a first synchronization signal block (SSB) portion within a first synchronization grid. The first synchronization grid is associated with the first SSB portion. The first device processes a second SSB portion based on the first SSB portion, and the first and second SSB portions together form an SSB. This division of the SSB into a first and a second SSB portion allows for flexible setting of parameters such as bandwidth. For example, the bandwidth of the first SSB portion can be reduced while maintaining the bandwidth of the second SSB portion. Since the first synchronization grid only references the first SSB portion, the frequency interval of the synchronization grid can be increased by reducing the bandwidth of the first SSB portion, while maintaining the large bandwidth of the second SSB portion to carry information. This increases the SSB transmission period, reduces the complexity and latency of the first device's search in the frequency domain, thereby achieving network energy saving. Furthermore, the splitting of the SSB also enhances its flexibility. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a block diagram of a wireless communication system that can be applied to embodiments of this application.

[0033] Figure 2 This is a schematic diagram of an SSB structure provided in an embodiment of this application.

[0034] Figure 3 This is a schematic flowchart of a method 100 for processing a synchronization signal block provided in an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of five SSB modes provided in the embodiments of this application.

[0036] Figure 5 This is a schematic flowchart of a method 200 for processing a synchronization signal block provided in an embodiment of this application.

[0037] Figure 6 This is a schematic flowchart of a synchronization signal block processing method 300 provided in an embodiment of this application.

[0038] Figure 7 This is a schematic block diagram of a synchronization signal block processing device 400 provided in an embodiment of this application.

[0039] Figure 8 This is a schematic block diagram of a synchronization signal block processing device 500 provided in an embodiment of this application.

[0040] Figure 9 This is a schematic diagram of the structure of a communication device 600 provided in an embodiment of this application.

[0041] Figure 10 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0042] Figure 11 This is a schematic diagram of the structure of a network-side device provided in an embodiment of this application. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0044] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, without limiting the number of objects; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, "A or B" covers three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0045] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0046] It is worth noting that the technologies described in this application are not limited to 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 this application are often used interchangeably, and the described technologies can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description is for illustrative purposes and describes a New Radio (NR) system, and the term NR is used in most of the following description. However, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G). th Generation 6G communication system.

[0047] Figure 1This is a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of this application.

[0048] Network-side equipment 12 may include access network equipment or core network equipment.

[0049] Access network equipment can also be referred to as Radio Access Network (RAN) equipment, radio access network functions, or radio access network units. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc. The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0050] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), and Network Storage Function (Network). The core network device includes Repository Function (NRF), Network Exposure Function (NEF), Local NEF (LocalNEF, or L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses the core network device in the NR system as an example and does not limit the specific type of core network device. If the name of the core network device mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application. Optionally, the core network device can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application embodiment does not specifically limit this.It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0051] To facilitate a better understanding of the embodiments of this application, the synchronization signal and PBCH are explained.

[0052] In order for the terminal to search for a suitable cell and synchronize with the selected cell, it is usually necessary to broadcast a synchronization signal and provide some main information about the cell. Figure 2 This is a schematic diagram of an SSB structure provided in an embodiment of this application. Specifically, the SSB can be as follows: Figure 2 As shown, the synchronization signal (SS) mainly includes the primary synchronization signal (PSS) and the secondary synchronization signal (SSS). The PSS and SSS can occupy 127 subcarriers, and the physical broadcast channels (PBCH) on both sides of the SSS can occupy 4 physical resource blocks (PRBs). The PSS and SSS are used for coarse time-frequency synchronization, the PBCH carries the master information block (MIB), and the DMRS of the PBCH is used for demodulation. Furthermore, the entire SSB occupies 4 OFDM symbols in the time domain and a maximum of 20 resource blocks (RBs) in the frequency domain. Due to the limited time-frequency resources occupied by the SSB, only relatively preliminary coarse time-frequency synchronization can be performed based on the SSB.

[0053] It should be noted that SSB can also be called synchronizationsignal / physical broadcast channel block (SS / PBCH block).

[0054] Wireless devices (terminals) perform time-frequency domain synchronization with the base station by obtaining synchronization signals and broadcast signals / channels from the base station cells during the cell search process. They also acquire the location of the time-frequency resources of the cells deployed by the base station in the frequency and time domains, as well as the physical cell identifier (ID). For example... Figure 2As shown, the terminal first detects the Primary Synchronization Signal (PSS) to obtain a part of the Physical Cell Identifier (ID), namely N(2)_ID; obtains Orthogonal Frequency Division Multiplexing (OFDM) symbol timing and frequency synchronization; then detects the Secondary Synchronization Signal (SSS) to obtain the other part of the Physical Cell Identifier, namely N(1)_ID, thus obtaining the complete Physical Cell Identifier (PCI). Then the terminal detects the Physical Broadcast Channel (PBCH) and the Demodulation Reference Signal (DMRS) of the PBCH to obtain the System Frame Number and SSB Index, and further obtains the timing of the radio frame (subframe).

[0055] To facilitate a better understanding of the embodiments of this application, a synchronization grid will be described.

[0056] In 5G NR, since the channel bandwidth can be very large, if the terminal searches for synchronization signals according to the channel raster, it will take a long time and consume a lot of power; therefore, NR defines the concept of a synchronization raster, and the synchronization signals are placed according to the synchronization raster.

[0057] The design of a synchronization grid mainly needs to be considered from the following two aspects:

[0058] 1. Ensure that there is a synchronization grid within the channel bandwidth when the network is located at different bandwidths and frequencies.

[0059] 2. While meeting network deployment requirements, maximize the frequency interval of the synchronization grid to reduce the set of frequency points for the terminal's initial search (i.e., reduce the number of synchronization grids for the terminal's cell search).

[0060] The minimum bandwidth supported by 5G NR systems is 5MHz. Since global operators' spectrum resources may be located at any frequency within the band, the design of synchronization grids in NR systems needs to ensure that at least one usable synchronization grid exists within a 5MHz bandwidth spectrum at any frequency location, and that the SSB centered on this synchronization grid is included within the 5MHz channel bandwidth. 5G NR systems support higher bandwidths, such as 10MHz and 20MHz. If a valid synchronization grid can be guaranteed at any frequency location within a 5MHz bandwidth, then this design can also guarantee the deployment of larger channel bandwidths at any frequency location.

[0061] When determining the synchronization grid frequency spacing, assuming the minimum channel bandwidth is x RB and the SSB bandwidth is y RB, the condition for deploying a channel with a bandwidth of xRB at any frequency location is: the maximum spacing between two synchronization grids is x(RB) - y(RB) + delta_f, where delta_f is the minimum frequency spacing for channel deployment. For the FR1 band of the 5G NR system, delta_f is 15 kHz, which is the minimum subcarrier spacing of the resource grid. Therefore, the final determined synchronization grid frequency spacing is less than or equal to x(RB) - y(RB) + 15 (kHz).

[0062] In related technologies, the transmission period of SSB needs to be controlled within 20ms. How to increase the frequency interval of the synchronization grid to reduce the complexity and latency of the terminal's search in the frequency domain is the technical problem this application aims to solve. Specifically, increasing the frequency interval of the synchronization grid reduces the complexity and latency of the terminal's search in the frequency domain, thereby allowing network-side devices to transmit SSBs with a longer cycle to achieve network energy saving. Simultaneously, the SSB design needs to flexibly support access from various terminal types; for example, some terminals only support narrow bandwidth, while others support normal bandwidth. Enhancing the flexibility of SSB is also a technical problem to be solved.

[0063] This embodiment of the application sets the SSB to include a first SSB portion and a second SSB portion, which is sent from a second device to a first device. A first synchronization grid is associated with the first SSB portion. The first device detects the first SSB portion in the first synchronization grid and then processes the second SSB portion based on the first SSB portion. By dividing the SSB into a first SSB portion and a second SSB portion, parameters such as bandwidth can be flexibly set for both portions. For example, the bandwidth of the first SSB portion can be reduced while maintaining the bandwidth of the second SSB portion. Since the first synchronization grid only references the first SSB portion, the frequency interval of the synchronization grid can be increased by reducing the bandwidth of the first SSB portion, while maintaining the large bandwidth of the second SSB portion to carry information. Therefore, the transmission period of the SSB can be increased, reducing the complexity and latency of the first device's search in the frequency domain, thereby achieving network energy saving. Furthermore, the splitting of the SSB also enhances its flexibility.

[0064] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0065] Figure 3 A schematic flowchart of a synchronization signal block processing method 100 provided in an embodiment of this application is shown below. Figure 3 As shown, the processing method 100 for the synchronization signal block may include at least some of the following:

[0066] S110, the second device sends a first SSB portion to the first device. The first SSB portion is a part of an SSB, and the SSB also includes a second SSB portion.

[0067] S120, the first device detects the first SSB portion in the first synchronization grid, and the first synchronization grid is related to the first SSB portion.

[0068] 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 an SSB.

[0069] In this embodiment, optionally, the first SSB portion and the second SSB portion can be transmitted simultaneously or separately. If transmitted separately, the first device processes the second SSB portion based on the first SSB portion. This can be done by first receiving the second SSB portion based on the first SSB portion, and then processing the second SSB portion, such as detection, searching, and measurement. If transmitted simultaneously, after receiving the first SSB portion and the second SSB portion, the first device detects the first SSB portion in the first synchronization grid, and then processes the second SSB portion based on the first SSB portion, such as detection, searching, and measurement.

[0070] It should be understood that Figure 3 The steps or operations of a method 100 for processing synchronization signal blocks are illustrated, but these steps or operations are merely examples, and other operations may be performed in the embodiments of this application. Figure 3 Variations of various operations within it.

[0071] The SSB in this application embodiment can be used interchangeably with the Synchronization Signal / Physical Broadcast Signal Block (SS / PBCH block), and can also be called any module that includes at least one of synchronization signal, demodulation signal, broadcast signal, broadcast channel (PBCH), other system message downlink broadcast channel or other control channel.

[0072] The synchronization grid in this application embodiment includes one or more synchronization grid frequency points or can be described as one or more frequency points, frequency bands or frequency ranges that SSB may exist.

[0073] Specifically, in this embodiment, the SSB includes a first SSB portion and a second SSB portion, and the first SSB portion is related to the first synchronization grid. In this embodiment, the first SSB portion is related to the first synchronization grid, and the first synchronization grid can refer to the first SSB portion. Currently, the synchronization grid of NR is defined as the center frequency point of the transmitted SSB. In this embodiment, the definition of the synchronization grid is related to the first SSB portion, and the synchronization grid can be defined as the center frequency point of the first SSB portion of the transmitted SSB. That is, the aforementioned first synchronization grid can be defined as the center frequency point of the first SSB portion of the transmitted SSB.

[0074] In this application embodiment, the transmission of the first SSB part and the second SSB part and the corresponding first device detection can be implemented in the following two ways:

[0075] Method 1: S1, the second device sends an SSB to the first device. The SSB includes a first SSB part and a second SSB part. The first SSB part is related to the first synchronization grid.

[0076] S2, The first device detects the first SSB section in the first synchronization grid.

[0077] S3. The first device processes the second SSB based on the first SSB.

[0078] In this method, the second device periodically sends an SSB, including a first SSB portion and a second SSB portion, to the first device.

[0079] Method 2: S11, the second device sends the first SSB part to the first device.

[0080] In this embodiment, the second device only sends the first SSB portion.

[0081] S12, The first device detects the first SSB section in the first synchronization grid.

[0082] S13. The first device sends a wake-up signal to the second device according to the first SSB portion.

[0083] Specifically, in one embodiment, the first SSB portion carries indication information, which indicates that the second SSB portion has not transmitted but can be triggered by a wake-up signal. This wake-up signal is used to wake up the second SSB portion to transmit. The first device sends a wake-up signal to the second device based on the first SSB portion. Specifically, the first device may first determine, based on the indication information carried in the first SSB portion, that the second SSB portion has not transmitted but can be triggered by a wake-up signal. When the first device determines that the second SSB portion needs to perform subsequent operations, it sends a wake-up signal to the second device. Optionally, the first device waits for feedback from the second device after sending the wake-up signal.

[0084] S14. The second device sends the second SSB portion to the first device.

[0085] S15. After receiving the second SSB portion sent by the second device, the first device processes the second SSB portion according to the first SSB portion.

[0086] Optionally, the first device may detect the second SSB portion within a time window after sending the wake-up signal, or it may detect the second SSB portion within a time window after receiving the second SSB portion.

[0087] In this embodiment, by sending a wake-up signal to the second device only when the first device needs the second SSB part to wake up the transmission of the second SSB part, the periodic transmission of the second device to the second SSB part can be reduced, and further network energy-saving benefits can be obtained on the basis of the first embodiment described above.

[0088] In some embodiments, at least one of the following differs between the first SSB portion and the second SSB portion:

[0089] Center frequency;

[0090] Top edge frequency;

[0091] Lower edge frequency;

[0092] Frequency domain bandwidth;

[0093] Subcarrier alignment point;

[0094] Time domain period;

[0095] Transmission power;

[0096] Power spectral density;

[0097] Equivalent isotropic radiated power;

[0098] Bit signal-to-noise ratio;

[0099] The number of SSBs in the airspace within one cycle;

[0100] Index of the spatial SSB.

[0101] Among them, the center frequency, upper edge frequency, lower edge frequency, frequency domain bandwidth and subcarrier alignment point are frequency domain features, while the transmitted power, power spectral density, equivalent isotropic radiated power and bit signal-to-noise ratio are power domain features.

[0102] In this embodiment, the SSB is divided into a first SSB part and a second SSB part. By setting at least one of the above differences between the first SSB part and the second SSB part, the flexibility of the SSB can be enhanced.

[0103] Optionally, the SSB in this embodiment can have multiple candidate SSB modes. Figure 4 Here are a few examples. Figure 4 A schematic diagram of the five SSB modes provided in the embodiments of this application, as shown below. Figure 4 As shown, there are five modes: Mode 1, Mode 2, Mode 3, Mode 4, and Mode 5.

[0104] In the frequency domain, in some embodiments, the first SSB portion and the second SSB portion have different frequency domain bandwidths, and the upper edge frequency point / subcarrier is aligned or has a certain offset, as shown in Mode 1.

[0105] In some embodiments, the frequency domain bandwidths of the first SSB portion and the second SSB portion are different, and the lower edge frequency point / subcarrier is aligned or has a certain offset, as shown in Mode 2.

[0106] In some sub-implementations, the frequency domain bandwidths of the first SSB portion and the second SSB portion are different, and the center frequency point / subcarrier is aligned or offset to a certain extent, as shown in mode 3.

[0107] In some sub-implementations, the first SSB portion and the second SSB portion have the same frequency domain bandwidth, and the center frequency point / subcarrier is aligned or has a certain offset, as shown in mode 4.

[0108] In some sub-implementations, the SSB includes only the first SSB portion, as shown in Mode 5.

[0109] Optionally, when there are multiple candidate modes for the SSB, for any channel grid and a carrier with a minimum bandwidth centered on that channel grid, if a synchronization grid can be found to accommodate the first SSB portion, the second device will definitely be able to find a candidate mode to accommodate the second SSB portion. This is why multiple candidate modes need to be introduced. Furthermore, mode 4 can be used for SSB transmission in some Internet of Things (IoT) scenarios, and mode 5 can be used for energy-saving scenarios as a simplified SSB transmission or as a measurement function SSB transmission.

[0110] In the time domain, in some embodiments, for all candidate SSB modes, the relative time-domain positions and lengths of the first SSB portion and the second SSB portion are fixed, and each portion can be continuous. For example, an SSB may contain a total of 4 symbols, with the first SSB portion containing symbols 1 and 2, and the second SSB portion containing symbols 3 and 4. Optionally, the portions can also be discontinuous. For example, an SSB may contain a total of 4 symbols, with the first SSB portion containing symbols 1 and 3, and the second SSB portion containing symbols 2 and 4.

[0111] In some embodiments, for different candidate SSB modes, the relative temporal position or length of the first SSB part and the second SSB part is fixed, and each part can be continuous. For example, SSB mode 1 contains 4 symbols, 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, the first SSB part contains symbols 1 and 2, and the second SSB part contains symbols 3, 4, 5, and 6. Optionally, the relative temporal position or length of the first SSB part and the second SSB part can be fixed, and each part can also be discontinuous. For example, SSB mode 1 contains 4 symbols, 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, the first SSB part contains symbols 1 and 4, and the second SSB part contains symbols 2, 3, 5, and 6.

[0112] In terms of the power domain, in some embodiments, the transmit power / power spectral density / equivalent isotropic radiated power (EIRP) or bit signal-to-noise ratio (Eb / N0) of the first SSB portion and the second SSB portion are the same, sharing a single indicator.

[0113] In some embodiments, the transmit power / power spectral density / EIRP or Eb / N0 of the first SSB portion and the second SSB portion are different, indicated by at least one of the following:

[0114] 1) Two independent power indication parameters, which can be carried in the first SSB section, or in the second SSB section, or in the first SSB section and the second SSB section respectively.

[0115] 2) A power indication parameter (e.g., the power of the first SSB portion) and a power offset parameter (e.g., the power offset of the second SSB portion relative to the first SSB portion) may be carried in the first SSB portion, or in the second SSB portion, or in the first SSB portion and the second SSB portion respectively.

[0116] In terms of spatial domain, in some embodiments, the spatial domain characteristics of the first SSB portion and the second SSB portion are exactly the same, that is, the quasi-co-location (QCL) and average gain are the same.

[0117] In some embodiments, the spatial characteristics of the first SSB portion and the second SSB portion are not completely identical. Optionally, the second SSB portion has multiple different sub-parts, corresponding to different spatial characteristics, and all of them are quasi-co-addressable with the first SSB portion regarding a specific type (e.g., Type D). For example, the beams of multiple sub-parts of the second SSB portion are all sub-beams of the first SSB portion.

[0118] In one feasible embodiment of this application, the first synchronization grid can be the center frequency point of the first SSB portion, or the first synchronization grid can be the upper edge frequency point of the first SSB portion, or the first synchronization grid can be the lower edge frequency point of the first SSB portion; any of these three methods are acceptable.

[0119] Specifically, in one embodiment, when the first synchronization grid is the center frequency of the first SSB portion, the first device in S120 detects the first SSB portion in the first synchronization grid. Specifically, the first device detects the first SSB portion at a frequency domain position centered on each first synchronization grid, with a bandwidth equal to the bandwidth of the first SSB portion.

[0120] In one embodiment, the first synchronization grid is the upper edge frequency point of the first SSB portion. In S120, the first device detects the first SSB portion in the first synchronization grid. Specifically, the first device detects the first SSB portion at the frequency domain position where the first synchronization grid is the upper edge and the bandwidth is the bandwidth of the first SSB portion.

[0121] In one embodiment, the first synchronization grid is the upper edge frequency point of the first SSB portion. In S120, the first device detects the first SSB portion in the first synchronization grid. Specifically, the first device detects the first SSB portion at the frequency domain position where the first synchronization grid is the lower edge and the bandwidth is the bandwidth of the first SSB portion.

[0122] By setting the first synchronization grid as the center frequency of the first SSB section, or as the upper edge frequency of the first SSB section, or as the lower edge frequency of the first SSB section, the first synchronization grid only references the first SSB section. This allows the frequency spacing of the synchronization grid to be increased by only reducing the bandwidth of the first SSB section, while maintaining the large bandwidth of the second SSB section to carry information. Therefore, the transmission period of the SSB can be increased without increasing the complexity and latency of the first device's search in the frequency domain, thereby achieving the goal of network energy saving.

[0123] In one embodiment, the frequency position or frequency interval of the first synchronization grid is determined according to at least one of the following: the type of the first device, frequency type, frequency point type, frequency band type, frequency range, network, and network node type.

[0124] In one embodiment, the first SSB portion includes at least one of the following:

[0125] PSS, all or part of SSS, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of PBCH load, all or part of DMRS, first part of master system information;

[0126] Among them, the time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation;

[0127] Frequency synchronization signals are used for frequency synchronization or for channel estimation and tracking required for demodulation.

[0128] Time and frequency synchronization signals are used for time and frequency synchronization or for channel estimation and tracking required for demodulation.

[0129] In one embodiment, the second SSB portion includes at least one of the following:

[0130] All or part of SSS, all or part of PBCH payload, all or part of DMRS, all or part of master system information, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of system information (SIB).

[0131] In one embodiment, the first SSB portion includes first indication information, which indicates at least one of the following:

[0132] The structural pattern of the SSB, the characteristics of the second SSB part, the existence of the second SSB part, the format of the second SSB part, and the first information of the target SSB or the first SSB part of the target SSB, wherein the characteristics include at least one of time domain characteristics, frequency domain characteristics, power domain characteristics and spatial domain characteristics, and the target SSB is an SSB other than an SSB.

[0133] The target SSB includes at least one of the following:

[0134] An SSB with a second SSB component exists in other frequency domains, and an SSB with a second SSB component exists in other time domains.

[0135] The aforementioned first information includes at least one of the following:

[0136] The frequency domain location or frequency domain range of the SSB containing the second SSB portion;

[0137] The time-domain period, time-domain location, or time-domain range of an SSB with a second SSB portion.

[0138] Specifically, the structural pattern of SSB can be, for example, Figure 4 In a given mode, the features of the second SSB portion may include at least one of time-domain features (e.g., offset), frequency-domain features (e.g., offset), power-domain features (e.g., power difference), and spatial-domain features (e.g., the number of beams in the second SSB portion). Optionally, the first indication information may explicitly or implicitly indicate the above information. For example, when indicating the structural mode of the SSB, the first indication information may indicate the index of the SSB's structural mode. The first indication information may also indicate whether the second SSB portion exists; in some scenarios, the second SSB portion does not exist. Optionally, the SSB's structural mode, the features of the second SSB portion, the existence of the second SSB portion, and the format of the second SSB portion may be jointly or separately indicated by the first indication information. The first information of the first SSB portion may be other information of the first SSB portion, such as information about the most recent first SSB that includes the second SSB portion.

[0139] In this embodiment, by indicating the structural pattern of the SSB, the characteristics of the second SSB part, the existence of the second SSB part, and at least one of the formats of the second SSB part through the first indication information, the first device can obtain the corresponding information according to the first indication information and then perform the next operation.

[0140] Optionally, the indication method of the first indication information includes at least one of the following:

[0141] The PBCH payload carries information from the DMRS, implicitly carrying the sequence of the PSS, implicitly carrying the sequence of the SSS, implicitly carrying the temporal relationship between the PSS and SSS, carrying the time synchronization signal, carrying the frequency synchronization signal, carrying the time-frequency synchronization signal, carrying the tracking reference signal, carrying one or more of the following: scrambling information of the time synchronization signal, scrambling information of the frequency synchronization signal, scrambling information of the time-frequency synchronization signal, and scrambling information of the tracking reference signal, carrying the SSB index information, and carrying the joint indication information.

[0142] In one embodiment, in S130, the first device processes the second SSB portion based on the first SSB portion, including:

[0143] The first device processes the second SSB portion according to the characteristics of the second SSB portion indicated by the first SSB portion.

[0144] Specifically, in this embodiment, the features of the second SSB portion indicated by the first SSB portion may be at least one of time domain features, frequency domain features, power domain features, and spatial domain features. The first device processes the second SSB portion according to these features of the second SSB portion indicated by the first SSB portion.

[0145] In one embodiment, the first device in S130 processes the second SSB portion based on the first SSB portion. This can be done by detecting the second SSB portion based on the first SSB portion, or by measuring or searching the second SSB portion based on the first SSB portion.

[0146] For example, the first device detects a first SSB portion in the first synchronization grid, and the first device processes the second SSB portions based on the characteristics of these second SSB portions indicated by the first SSB portions. This can be done by performing some or all of the following detections based on the contents of the two SSB portions:

[0147] First, detect the PSS sequence, and then obtain the physical cell ID based on the sequence correlation. And obtain preliminary time-frequency synchronization; then detect SSS, and obtain the physical cell ID based on sequence correlation. Thus, the complete Physical Cell ID (PCI) can be obtained, i.e. The first device can further adjust the frequency offset based on PSS and SSS. Then, the first device detects the DMRS of the PBCH to perform channel estimation and demodulate the PBCH.

[0148] Generally, the first device needs to cache data before detection. Optionally, the method in this embodiment may further include:

[0149] S140, the first device caches data according to at least one of the following during the initial search:

[0150] In the time domain, cache data according to the SSB periodicity assumption of the protocol initial search hypothesis;

[0151] In the frequency domain, with the first synchronization grid as the center, samples of the frequency domain regions where at least two SSB structural modes may occur are cached.

[0152] Specifically, the first device buffers data in the time domain according to the SSB period (e.g., 160ms) assumed by the protocol's initial search. In the frequency domain, the first device buffers samples of all possible SSB structural patterns, centered on the first synchronization grid. For example, the structural patterns of candidate SSBs are... Figure 4 In modes 1 and 2 shown, the first device first caches data, which requires a bandwidth of BW centered on the first synchronization grid. SSB Part 2，模式1 +BW SSB Part 2，模式2 -BW SSB Part 1.

[0153] In this embodiment, by caching data in at least one of the two methods described above during the initial search, the first device can detect the first SSB part and the second SSB part faster and more reliably.

[0154] In one embodiment, the first SSB portion satisfies at least one of the following:

[0155] The period of the first SSB portion is greater than a first threshold, which is determined based on at least one of the following:

[0156] The first preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the type of the first device, and the network type.

[0157] The first preset threshold can be a period threshold specified in the protocol. For example, if the first threshold is 20ms, the period of the SSB is greater than 20ms, and can be 40ms, 80ms, or 160ms.

[0158] The frequency interval of the synchronization grid containing the first SSB portion is greater than or not less than a second threshold, which is determined based on at least one of the following:

[0159] The second preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, and the period of the first SSB part.

[0160] The second preset threshold can be a step size threshold or a frequency interval threshold specified in the protocol. For example, for the [3000–24250MHz] frequency band, the second threshold is 2.88MHz, and the step size of the SSB synchronization grid is larger than the step size assumed in NR (1.44MHz).

[0161] The number of synchronization grids containing the first SSB portion is less than, equal to, or less than a third threshold on a preset bandwidth or a fixed-size bandwidth, wherein the third threshold is determined based on at least one of the following:

[0162] The third preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid of the first SSB part.

[0163] The third preset threshold can be a quantity threshold specified in the protocol.

[0164] The bandwidth of the first SSB portion is less than or equal to or less than the fourth threshold, which is determined based on at least one of the following:

[0165] The fourth preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid of the first SSB part.

[0166] The fourth preset threshold can be a bandwidth threshold specified in the protocol. For example, the bandwidth of the first SSB portion is less than 20 PRBs.

[0167] The period or default period of the first SSB part is a function of at least one of the following:

[0168] A function of at least one of the following: the bandwidth of the first SSB portion, the maximum number of indices of the first SSB portion, the subcarrier spacing of the first SSB portion, and the subcarrier spacing index of the first SSB portion.

[0169] For example, the period or default period of the first SSB is P, the bandwidth of the first SSB is b, the maximum number of indices in the first SSB is m, and the subcarrier spacing of the first SSB is s. For example, the period or default period of the first SSB satisfies the following formulas (1), (2), or (3):

[0170] p = 20 * (b / 20) = b(ms) (1)

[0171] Where p is in milliseconds (ms) and b is the number of PRBs (Persistent Packet Buffers), applicable to all subcarrier intervals.

[0172] p = 20 * (b / 3600) = b(ms)(2)

[0173] Where p is in milliseconds (ms) and b is in Hz, and this applies to all subcarrier intervals.

[0174] p = 20 * (b / 3600) * 2^u (ms) (3)

[0175] Where p is in milliseconds (ms), b is in Hz, u = log2(s / 15), and s is the subcarrier spacing (kHz).

[0176] The number of synchronization grids or the number of effective synchronization grids in the bandwidth of the first SSB section is a function of at least one of the following:

[0177] The period or default period of the first SSB, bandwidth, maximum number of indices for the first SSB, subcarrier spacing of the first SSB, and subcarrier spacing index of the first SSB.

[0178] For example, the number of synchronization grids or the number of effective synchronization grids in the bandwidth of the first SSB is n, the period or default period of the first SSB is P, the maximum number of indices in the first SSB is m, and the number of synchronization grids or the number of effective synchronization grids in the bandwidth of the first SSB satisfies the following formulas (4), (5), (6) or (7):

[0179] n = p / 20 or n = ceil(p / 20) (4)

[0180] Where p is in milliseconds (ms) and ceil is the floor function.

[0181] Alternatively, n = K * (p / 20) or n = K * ceil(p / 20) (5)

[0182] Where p is in milliseconds, ceil is rounded up, and K is a constant that can be specified by the protocol or depend on at least one of the following: the type of the first SSB part, the time / frequency / band information of the first SSB part, the terminal to which the first SSB part is targeted, the network type, the period of the first SSB part, and the step size of the synchronization grid in which the first SSB part is located.

[0183] n = p / 20 or n = (ceil(p / 20)) * 4 / m(6)

[0184] Where p is in milliseconds, ceil is the floor function, and m is the number of SSBs with the most SSBs in an SSB burst.

[0185] n = K*(p / 20)*4 / m or n = K*(ceil(p / 20))*4 / m(7)

[0186] Where p is in milliseconds, ceil is the floor function, m is the number of SSBs with the most bursts, and K is a constant that can be specified by the protocol or depend on at least one of the following: the type of the first SSB part, the time / frequency / band information of the first SSB part, the terminal to which the first SSB part is targeted, the network type, the period of the first SSB part, and the step size of the synchronization grid in which the first SSB part is located.

[0187] In this embodiment, by setting the first SSB portion to satisfy at least one of the above conditions, the number of combinations of blind searches by the first device can be reduced, thereby reducing the complexity of the first device's search in the frequency domain.

[0188] Therefore, in this embodiment, by setting the SSB to include a first SSB portion and a second SSB portion, which is sent from the second device to the first device, and the first synchronization grid is associated with the first SSB portion, the first device detects the first SSB portion in the first synchronization grid, and then processes the second SSB portion according to the first SSB portion. In this way, the SSB is divided into a first SSB portion and a second SSB portion, allowing for flexible setting of parameters such as bandwidth for both portions. For example, the bandwidth of the first SSB portion can be reduced while maintaining the bandwidth of the second SSB portion. Since the first synchronization grid only references the first SSB portion, the frequency interval of the synchronization grid can be increased by reducing the bandwidth of the first SSB portion, while maintaining the large bandwidth of the second SSB portion to carry information. Therefore, the transmission period of the SSB can be increased, reducing the complexity and latency of the first device's search in the frequency domain, thereby achieving network energy saving. Furthermore, the splitting of the SSB also enhances its flexibility.

[0189] Figure 5A schematic flowchart of a synchronization signal block processing method 200 provided in this application embodiment is shown below. Figure 5 As shown, the processing method 200 for the synchronization signal block may include at least some of the following:

[0190] S210, the second device sends the first SSB portion to the first device.

[0191] In this embodiment, the second device only sends the first SSB portion.

[0192] S220, the first device detects the first SSB section in the first synchronization grid.

[0193] S230, the first device sends a wake-up signal to the second device according to the first SSB portion.

[0194] Specifically, in one embodiment, the first SSB portion carries indication information, which indicates that the second SSB portion has not transmitted but can be triggered by a wake-up signal. This wake-up signal is used to wake up the second SSB portion to transmit. The first device sends a wake-up signal to the second device based on the first SSB portion. Specifically, the first device may first determine, based on the indication information carried in the first SSB portion, that the second SSB portion has not transmitted but can be triggered by a wake-up signal. When the first device determines that the second SSB portion needs to perform subsequent operations, it sends a wake-up signal to the second device. Optionally, the first device waits for feedback from the second device after sending the wake-up signal.

[0195] S240, the second device sends the second SSB portion to the first device.

[0196] S250: After receiving the second SSB portion sent by the second device, the first device processes the second SSB portion according to the first SSB portion.

[0197] In one embodiment, the first device processes the second SSB portion based on the first SSB portion, which may include detecting, searching, or measuring the second SSB portion based on the first SSB portion.

[0198] In this embodiment, other relevant descriptions can be found in [reference needed]. Figure 3 The descriptions in the illustrated embodiments will not be repeated here.

[0199] The synchronization signal block processing method provided in this embodiment involves a second device sending a first SSB portion to a first device, the first device detecting the first SSB portion in a first synchronization grid, the first device sending a wake-up signal to the second device based on the first SSB portion, the second device sending a second SSB portion to the first device, and the first device processing the second SSB portion after receiving it from the second device, based on the first SSB portion. Since the first synchronization grid only references the first SSB portion, the frequency interval of the synchronization grid can be increased by reducing only the bandwidth of the first SSB portion. By maintaining a large bandwidth for the second SSB portion to carry information, the transmission period of the SSB can be increased, reducing the complexity and latency of the first device's search in the frequency domain, thereby achieving network energy saving. Furthermore, sending a wake-up signal to the second device only when the first device needs the second SSB portion to wake up its transmission reduces the periodic transmission of the second SSB portion by the second device, further improving network energy saving benefits. Moreover, by dividing the SSB into a first SSB portion and a second SSB portion, and setting different bandwidth and other parameters for the first and second SSB portions, the flexibility of the SSB can be enhanced.

[0200] In this embodiment of the application, optionally, the first device can be a terminal and the second device can be a network-side device.

[0201] Figure 6 A schematic flowchart of a synchronization signal block processing method 300 provided in an embodiment of this application is shown below. Figure 6 As shown, the processing method 300 for the synchronization signal block may include at least some of the following:

[0202] S310, the first device determines the first synchronization grid according to the device type of the first device.

[0203] S320, the first device performs cell search based on the first synchronization grid.

[0204] Specifically, in one embodiment, the synchronization grid for the first device to perform the initial cell search is determined according to the device type of the first device. If the first device is a terminal, for example, if the terminal is a type of terminal similar to Narrow Band Internet of Things (NB-IoT) or Redcap, one set of synchronization grids is used; if the terminal is a regular eMBB terminal, another set of synchronization grids is used. This is because the minimum bandwidth and other parameters of different types of terminals are different, resulting in different synchronization grid step sizes.

[0205] Optionally, the synchronization grids of devices of different device types are mutually inclusive, so that network-side devices can simultaneously serve different types of first devices on a single synchronization grid.

[0206] Optionally, the synchronization grids of devices of different types can be completely different, so that network-side devices can place different SSBs on different synchronization grids.

[0207] In this embodiment, when performing initial cell search using the first device, the first synchronization grid is determined based on the device type of the first device, thereby supporting the initial access of different types of terminal devices.

[0208] The synchronization signal block processing method provided in this application can be executed by a synchronization signal block processing device or a processing unit within the synchronization signal block processing device for executing the synchronization signal block processing method. This application embodiment uses the execution of the synchronization signal block processing method by a synchronization signal block processing device as an example to illustrate the synchronization signal block processing device provided in this application embodiment.

[0209] Figure 7 This is a schematic block diagram of a synchronization signal block processing apparatus 400 provided in an embodiment of this application. Figure 7 As shown, the processing device 400 for the synchronization signal block includes a detection unit 410 and a processing unit 420.

[0210] The detection unit 410 is used to detect the first synchronization signal block (SSB) portion of the first synchronization grid, and the first synchronization grid is related to the first SSB portion.

[0211] The processing unit 420 is used to process the second SSB portion according to the first SSB portion, wherein the first SSB portion and the second SSB portion constitute an SSB.

[0212] In some embodiments, the processing unit 420 is further configured to:

[0213] A wake-up signal is sent to the second device based on the first SSB portion;

[0214] Receive the second SSB portion sent by the second device.

[0215] In some embodiments, the first SSB portion and the second SSB portion differ from at least one of the following:

[0216] Center frequency;

[0217] Top edge frequency;

[0218] Lower edge frequency;

[0219] Frequency domain bandwidth;

[0220] Subcarrier alignment point;

[0221] Time domain period;

[0222] Transmission power;

[0223] Power spectral density;

[0224] Equivalent isotropic radiated power;

[0225] Bit signal-to-noise ratio;

[0226] The number of SSBs in the airspace within one cycle;

[0227] Index of the spatial SSB.

[0228] In some embodiments, the first synchronization grid is the center frequency point of the first SSB portion, and the detection unit 410 is used for:

[0229] The first SSB portion is detected at its frequency domain position centered on each of the first synchronization grids, with a bandwidth equal to the bandwidth of the first SSB portion.

[0230] In some embodiments, the first synchronization grid is the upper edge frequency point of the first SSB portion, and the detection unit 410 is used to:

[0231] The first SSB portion is detected at a frequency domain position where the first synchronization grid is at its upper edge and the bandwidth is the bandwidth of the first SSB portion; or...

[0232] The first synchronization grid is the lower edge frequency point of the first SSB portion, and the detection unit is used for:

[0233] The first SSB portion is detected at a frequency domain position where each of the first synchronization grids is the lower edge and the bandwidth is the bandwidth of the first SSB portion.

[0234] In some embodiments, the frequency position or frequency interval of the first synchronization grid is determined according to at least one of the following:

[0235] The first device's type, frequency type, frequency point type, frequency band type, frequency range, network, and network node type.

[0236] In some embodiments, the first SSB portion includes at least one of the following:

[0237] All or part of the primary synchronization signal PSS, the secondary synchronization signal SSS, the time synchronization signal, the frequency synchronization signal, the time-frequency synchronization signal, all or part of the physical broadcast channel PBCH payload, all or part of the demodulation reference signal DMRS, and the first part of the main system information.

[0238] The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation.

[0239] The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation.

[0240] The time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

[0241] In some embodiments, the second SSB portion includes at least one of the following:

[0242] All or part of SSS, all or part of PBCH payload, all or part of DMRS, all or part of master system information, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of system information SIB;

[0243] The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation.

[0244] The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation.

[0245] The time-frequency synchronization signal is used for time-frequency synchronization or for channel estimation and tracking required for demodulation.

[0246] In some embodiments, the first SSB portion includes first indication information, the first indication information being used to indicate at least one of the following:

[0247] The structural pattern of the SSB, the characteristics of the second SSB part, the existence of the second SSB part, the format of the second SSB part, and the first information of the first SSB part of the target SSB or the target SSB, wherein the characteristics include at least one of time domain characteristics, frequency domain characteristics, power domain characteristics and spatial domain characteristics, and the target SSB is an SSB other than the SSB.

[0248] The target SSB includes at least one of the following:

[0249] An SSB with a second SSB component exists in other frequency domains, and an SSB with a second SSB component exists in other time domains.

[0250] The first information includes at least one of the following:

[0251] The frequency domain location or frequency domain range of the SSB containing the second SSB portion;

[0252] The time-domain period, time-domain location, or time-domain range of an SSB with a second SSB portion.

[0253] In some embodiments, the indication method of the first indication information includes at least one of the following:

[0254] The PBCH payload carries, DMRS information carries, PSS sequence implicitly carries, SSS sequence implicitly carries, PSS and SSS time-domain relationship implicitly carries, time synchronization signal carries, frequency synchronization signal carries, time-frequency synchronization signal carries, tracking reference signal carries, one or more of the following: scrambling information of time synchronization signal, scrambling information of frequency synchronization signal, scrambling information of time-frequency synchronization signal, and scrambling information of tracking reference signal; SSB index information carries; and joint indication information carries.

[0255] In some embodiments, the detection unit 410 is used for:

[0256] The second SSB portion is processed according to the characteristics of the second SSB portion indicated by the first SSB portion.

[0257] In some embodiments, the features of the second SSB portion include at least one of the time-domain features, frequency-domain features, power-domain features, and spatial-domain features of the second SSB portion.

[0258] In some embodiments, the processing unit 420 is further configured to:

[0259] Cache data according to at least one of the following during the initial search:

[0260] In the time domain, cache data according to the SSB periodicity assumption of the protocol initial search hypothesis;

[0261] In the frequency domain, with the first synchronization grid as the center, samples of the frequency domain regions where at least two SSB structural modes may occur are cached.

[0262] In some embodiments, the first SSB portion satisfies at least one of the following:

[0263] The period of the first SSB portion is greater than a first threshold, which is determined based on at least one of the following:

[0264] The first preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the type of the first device and the network type;

[0265] The frequency interval of the synchronization grid containing the first SSB portion is greater than or not less than a second threshold, the second threshold being determined based on at least one of the following:

[0266] The second preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, and the period of the first SSB part;

[0267] The number of synchronization grids containing the first SSB portion is less than, equal to, or less than a third threshold on a preset bandwidth or a fixed-size bandwidth, wherein the third threshold is determined according to at least one of the following:

[0268] The third preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid of the first SSB part.

[0269] The bandwidth of the first SSB portion is less than or equal to or less than a fourth threshold, which is determined based on at least one of the following:

[0270] The fourth preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid of the first SSB part.

[0271] The period or default period of the first SSB portion is a function of at least one of the following:

[0272] A function of at least one of the following: the bandwidth of the first SSB portion, the maximum number of indices of the first SSB portion, the subcarrier spacing of the first SSB portion, and the subcarrier spacing index of the first SSB portion;

[0273] The number of synchronization grids or the number of effective synchronization grids in the bandwidth where the first SSB portion is located is a function of at least one of the following:

[0274] The period or default period of the first SSB portion, bandwidth, maximum number of indices of the first SSB portion, subcarrier spacing of the first SSB portion, and subcarrier spacing index of the first SSB portion.

[0275] Figure 8 This is a schematic block diagram of a synchronization signal block processing apparatus 500 provided in an embodiment of this application. Figure 8 As shown, the processing device 500 for the synchronization signal block includes a transmitting unit 510.

[0276] The transmitting unit 510 is used to transmit a first synchronization signal block (SSB) portion to the first device, wherein the first SSB portion is associated with the first synchronization grid.

[0277] The first SSB portion is a part of the SSB, and the SSB also includes a second SSB portion.

[0278] In some embodiments, the sending unit 510 is configured to: send the SSB to the first device.

[0279] In some embodiments, the processing apparatus 500 for the synchronization signal block may further include a receiving unit for receiving a wake-up signal sent by the first device according to the first SSB portion;

[0280] The sending unit 510 is also configured to send the second SSB portion to the first device.

[0281] In some embodiments, the first SSB portion includes at least one of the following:

[0282] The main synchronization signal PSS, all or part of the auxiliary synchronization signal SSS, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of the physical broadcast channel PBCH payload, all or part of the demodulation reference signal DMRS, and the first part of the main system information.

[0283] The time synchronization signal is used for time synchronization or for channel estimation and tracking required for PBCH demodulation.

[0284] The frequency synchronization signal is used for frequency synchronization or for channel estimation and tracking required for demodulation.

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

[0286] In some embodiments, the second SSB portion includes at least one of the following:

[0287] All or part of SSS, all or part of PBCH payload, all or part of DMRS, all or part of master system information, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, and all or part of system information SIB.

[0288] In some embodiments, the first SSB portion includes first indication information, the first indication information being used to indicate at least one of the following:

[0289] The structural pattern of the SSB, the characteristics of the second SSB part, the existence of the second SSB part, the format of the second SSB part, and the first information of the target SSB or the first SSB part of the target SSB, wherein the characteristics include at least one of time domain characteristics, frequency domain characteristics, power domain characteristics, and spatial domain characteristics.

[0290] The target SSB includes at least one of the following:

[0291] An SSB with a second SSB component exists in other frequency domains, and an SSB with a second SSB component exists in other time domains.

[0292] The first information includes at least one of the following:

[0293] The frequency domain location or frequency domain range of the SSB containing the second SSB portion;

[0294] The time-domain period, time-domain location, or time-domain range of an SSB with a second SSB portion.

[0295] In some embodiments, the indication method of the first indication information includes at least one of the following:

[0296] The PBCH payload carries, DMRS information carries, PSS sequence implicitly carries, SSS sequence implicitly carries, PSS and SSS time-domain relationship implicitly carries, time synchronization signal carries, frequency synchronization signal carries, time-frequency synchronization signal carries, tracking reference signal carries, one or more of the following: scrambling information of time synchronization signal, scrambling information of frequency synchronization signal, scrambling information of time-frequency synchronization signal, and scrambling information of tracking reference signal; SSB index information carries; and joint indication information carries.

[0297] In some embodiments, the first SSB portion satisfies at least one of the following:

[0298] The period of the first SSB portion is greater than a first threshold, which is determined based on at least one of the following:

[0299] The first preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the type of the first device and the network type;

[0300] The frequency interval of the synchronization grid containing the first SSB portion is greater than or not less than a second threshold, the second threshold being determined based on at least one of the following:

[0301] The second preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, and the period of the first SSB part;

[0302] The number of synchronization grids containing the first SSB portion is less than, equal to, or less than a third threshold on a preset bandwidth or a fixed-size bandwidth, wherein the third threshold is determined according to at least one of the following:

[0303] The third preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid of the first SSB part.

[0304] The bandwidth of the first SSB portion is less than or equal to or less than a fourth threshold, which is determined based on at least one of the following:

[0305] The fourth preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid of the first SSB part.

[0306] The period or default period of the first SSB portion is a function of at least one of the following:

[0307] A function of at least one of the following: the bandwidth of the first SSB portion, the maximum number of indices of the first SSB portion, the subcarrier spacing of the first SSB portion, and the subcarrier spacing index of the first SSB portion;

[0308] The number of synchronization grids or the number of effective synchronization grids in the bandwidth where the first SSB portion is located is a function of at least one of the following:

[0309] The period or default period of the first SSB portion, bandwidth, maximum number of indices of the first SSB portion, subcarrier spacing of the first SSB portion, and subcarrier spacing index of the first SSB portion.

[0310] The processing device for the synchronization signal block in this embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or a network-side device, or other devices besides a terminal or network-side device. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; the network-side device can include, but is not limited to, the type of network-side device 12 listed above; other devices can be servers, network-attached storage (NAS), etc., and this embodiment does not specifically limit the scope of the device.

[0311] The synchronization signal block processing device provided in this application embodiment can achieve Figure 3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0312] like Figure 9 As shown, Figure 9 The present application provides a schematic diagram of the structure of a communication device 600, which includes a processor 601 and a memory 602. The memory 602 stores programs or instructions that can be run on the processor 601.

[0313] For example, when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, it implements the various steps executed by the terminal in the above-mentioned method embodiment for processing the synchronization signal block, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0314] For example, when the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, it implements the various steps executed by the network-side device in the above-mentioned synchronization signal block processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0315] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement, for example... Figure 3 The steps executed by the terminal in the illustrated method embodiment are shown below. This terminal embodiment corresponds to the terminal-side method embodiment described above. All implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 7 The device for processing the synchronization signal block shown. Specifically, Figure 10 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0316] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0317] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 11 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0318] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. 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 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0319] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0320] The memory 709 can be used to store software programs or instructions, as well as various data. The memory 709 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0321] Processor 710 may include at least one processing unit; optionally, processor 710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles SSB transmission signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0322] The radio frequency unit 701 is used to detect or receive SSBs.

[0323] The SSB satisfies at least one of the following: frequency division multiplexing (FDM) with other SSBs, FDM between different parts of the SSB, using interleaved resources, located in a specific bandwidth, and associated with a specific waveform;

[0324] Wherein, the width of the specific bandwidth is less than or equal to the first threshold, and the bandwidth corresponding to the specific waveform in the unlicensed spectrum is greater than or equal to the second threshold.

[0325] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0326] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement, for example... Figure 3 The steps shown in the method embodiment are performed by the network-side device. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect. For the sake of brevity, they will not be described in detail here.

[0327] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 8 The device for processing the synchronization signal block shown. Figure 11 This is a schematic diagram of the structure of a network-side device provided in an embodiment of this application, such as... Figure 11 As shown, the network-side device 800 includes: an antenna 81, a radio frequency (RF) device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the RF device 82. In the uplink direction, the RF device 82 receives information through the antenna 81 and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the RF device 82. The RF device 82 processes the received information and transmits it through the antenna 81.

[0328] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0329] Baseband device 83 may include, for example, at least one baseband board on which at least two chips are disposed, such as Figure 11 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 via a bus interface to call the program in the memory 85 and execute the network device operation shown in the above method embodiment.

[0330] The network-side device may also include a network interface 86, such as a Common Public Radio Interface (CPRI).

[0331] Specifically, the network-side device 800 in this application embodiment further includes: instructions or programs stored in memory 85 and executable on processor 84, wherein processor 84 calls the instructions or programs in memory 85 to execute. Figure 9 The methods executed by each unit shown achieve the same technical effect, and will not be elaborated here to avoid repetition.

[0332] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described method for processing the synchronization signal block and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0333] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0334] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described synchronization signal block processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0335] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0336] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described method for processing the synchronization signal block, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0337] This application also provides a communication system, including a terminal and a network-side device, wherein the terminal can be used to execute the steps performed by the terminal in the above-mentioned method for processing synchronization signal blocks, and the network-side device can be used to execute the steps performed by the network-side device in the above-mentioned method for processing synchronization signal blocks.

[0338] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0339] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause a terminal or network-side device to execute the methods of the various embodiments of this application.

[0340] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for processing a synchronization signal block, characterized in that, include: The first device detects the first synchronization signal block (SSB) portion of the first synchronization grid, and the first synchronization grid is associated with the first SSB portion; The first device processes the second SSB portion based on the first SSB portion, and the first SSB portion and the second SSB portion together form an SSB.

2. The method according to claim 1, characterized in that, Before the first device processes the second SSB portion based on the first SSB portion, it further includes: The first device sends a wake-up signal to the second device based on the first SSB portion.

3. The method according to claim 1 or 2, characterized in that, The first SSB portion and the second SSB portion differ from at least one of the following: Center frequency; Top edge frequency; Lower edge frequency; Frequency domain bandwidth; Subcarrier alignment point; Time domain period; Transmission power; Power spectral density; Equivalent isotropic radiated power; Bit signal-to-noise ratio; The number of SSBs in the airspace within one cycle; Index of the spatial SSB.

4. The method according to any one of claims 1-3, characterized in that, The first synchronization grid is the center frequency point of the first SSB portion. The first device detects the first synchronization signal block SSB portion in the first synchronization grid, including: The first device detects the first SSB portion at a frequency domain position centered on each of the first synchronization grids, with a bandwidth equal to the bandwidth of the first SSB portion.

5. The method according to any one of claims 1-3, characterized in that, The first synchronization grid is the upper edge frequency point of the first SSB portion. The first device detects the first SSB portion in the first synchronization grid, including: The first device detects the first SSB portion at a frequency domain position where the first synchronization grid is the upper edge and the bandwidth is the bandwidth of the first SSB portion.

6. The method according to any one of claims 1-3, characterized in that, The first synchronization grid is the lower edge frequency point of the first SSB portion. The first device detects the first SSB portion in the first synchronization grid, including: The first device detects the first SSB portion at a frequency domain position where the first synchronization grid is the lower edge and the bandwidth is the bandwidth of the first SSB portion.

7. The method according to any one of claims 1-6, characterized in that, The frequency position or frequency interval of the first synchronization grid is determined according to at least one of the following: The first device's type, frequency type, frequency point type, frequency band type, frequency range, network, and network node type.

8. The method according to any one of claims 1-7, characterized in that, The first SSB portion includes at least one of the following: The main synchronization signal PSS, all or part of the auxiliary synchronization signal SSS, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of the physical broadcast channel PBCH payload, all or part of the demodulation reference signal DMRS, and the first part of the main system information. 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, characterized in that, The second SSB portion includes at least one of the following: All or part of SSS, all or part of PBCH payload, all or part of DMRS, all or part of master system information, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of system information 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, characterized in that, The first SSB portion includes first indication information, which indicates at least one of the following: The structural pattern of the SSB, the characteristics of the second SSB part, the existence of the second SSB part, the format of the second SSB part, and the first information of the first SSB part of the target SSB or the first SSB part of the target SSB, wherein the characteristics include at least one of time domain characteristics, frequency domain characteristics, power domain characteristics and spatial domain characteristics, and the target SSB is an SSB other than the SSB mentioned above. The target SSB includes at least one of the following: An SSB with a second SSB component exists in other frequency domains, and an SSB with a second SSB component exists in other time domains. The first information includes at least one of the following: The frequency domain location or frequency domain range of the SSB containing the second SSB portion; The time-domain period, time-domain location, or time-domain range of an SSB with a second SSB portion.

11. The method according to claim 10, characterized in that, The indication method of the first indication information includes at least one of the following: The PBCH payload carries, DMRS information carries, PSS sequence implicitly carries, SSS sequence implicitly carries, PSS and SSS time-domain relationship implicitly carries, time synchronization signal carries, frequency synchronization signal carries, time-frequency synchronization signal carries, tracking reference signal carries, one or more of the following: scrambling information of time synchronization signal, scrambling information of frequency synchronization signal, scrambling information of time-frequency synchronization signal, and scrambling information of tracking reference signal; SSB index information carries; and joint indication information carries.

12. The method according to claim 10, characterized in that, The first device processes the second SSB portion based on the first SSB portion, including: The first device processes the second SSB portion according to the characteristics of the second SSB portion indicated by the first SSB portion.

13. The method according to claim 12, characterized in that, The features of the second SSB portion include at least one of the time-domain features, frequency-domain features, power-domain features, and spatial-domain features of the second SSB portion.

14. The method according to any one of claims 1-13, characterized in that, The method further includes: The first device caches data according to at least one of the following during the initial search: In the time domain, cache data according to the SSB periodicity assumption of the protocol initial search hypothesis; In the frequency domain, with the first synchronization grid as the center, samples of the frequency domain regions where at least two SSB structural modes may occur are cached.

15. The method according to any one of claims 1-14, characterized in that, The first SSB portion satisfies at least one of the following: The period of the first SSB portion is greater than a first threshold, and the first threshold is determined based on at least one of the following: a first preset threshold, the type of the first SSB portion, the time information of the first SSB portion, the frequency information of the first SSB portion, the type of the first device, and the network type; The frequency interval of the synchronization grid 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: a second preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, and the period of the first SSB part. The number of synchronization grids where the first SSB part is located is less than or equal to or less than a third threshold on a preset bandwidth or a fixed bandwidth. The third threshold is determined based on at least one of the following: a third preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid where the first SSB part is located. The bandwidth of the first SSB portion is less than or equal to or less than a fourth threshold, which is determined based on at least one of the following: a fourth preset threshold, the type of the first SSB portion, the time information of the first SSB portion, the frequency information of the first SSB portion, the frequency band information of the first SSB portion, the type of the first device, the network type, the period of the first SSB portion, and the step size of the synchronization grid of the first SSB portion. The period or default period of the first SSB portion is a function of at least one of the following: the bandwidth of the first SSB portion, the maximum number of indices of the first SSB portion, the subcarrier spacing of the first SSB portion, and the subcarrier spacing index of the first SSB portion. The number of synchronization grids or the number of effective synchronization grids in the bandwidth of the first SSB portion is a function of at least one of the following: the period or default period of the first SSB portion, the bandwidth, the maximum number of indices of the first SSB portion, the subcarrier spacing of the first SSB portion, and the subcarrier spacing index of the first SSB portion.

16. An SSB transmission method, characterized in that, include: The second device sends a first synchronization signal block (SSB) portion to the first device, the first SSB portion being associated with the first synchronization grid. The first SSB portion is a part of the SSB, and the SSB also includes a second SSB portion.

17. The method according to claim 16, characterized in that, The second device sends a first synchronization signal block (SSB) portion to the first device, including: The second device sends the SSB to the first device.

18. The method according to claim 16, characterized in that, The method further includes: The second device receives a wake-up signal sent by the first device based on the first SSB portion; The second device sends the second SSB portion to the first device.

19. The method according to any one of claims 16-18, characterized in that, The first SSB portion and the second SSB portion differ from at least one of the following: Center frequency; Top edge frequency; Lower edge frequency; Frequency domain bandwidth; Subcarrier alignment point; Time domain period; Transmission power; Power spectral density; Equivalent isotropic radiated power; Bit signal-to-noise ratio; The number of SSBs in the airspace within one cycle; Index of the spatial SSB.

20. The method according to any one of claims 16-19, characterized in that, The first synchronization grid is any one of the following: The center frequency of the first SSB portion; The upper edge frequency of the first SSB portion; The lower edge frequency of the first SSB portion.

21. The method according to any one of claims 16-20, characterized in that, The first SSB portion includes at least one of the following: The main synchronization signal PSS, all or part of the auxiliary synchronization signal SSS, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of the physical broadcast channel PBCH payload, all or part of the demodulation reference signal DMRS, and the first part of the main system information. 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.

22. The method according to any one of claims 16-21, characterized in that, The second SSB portion includes at least one of the following: All or part of SSS, all or part of PBCH payload, all or part of DMRS, all or part of master system information, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of system information 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.

23. The method according to any one of claims 16-22, characterized in that, The first SSB portion includes first indication information, which indicates at least one of the following: The structural pattern of the SSB, the characteristics of the second SSB part, the existence of the second SSB part, the format of the second SSB part, and the first information of the first SSB part of the target SSB or the first SSB part of the target SSB, wherein the characteristics include at least one of time domain characteristics, frequency domain characteristics, power domain characteristics and spatial domain characteristics. The target SSB includes at least one of the following: An SSB with a second SSB component exists in other frequency domains, and an SSB with a second SSB component exists in other time domains. The first information includes at least one of the following: The frequency domain location or frequency domain range of the SSB containing the second SSB portion; The time-domain period, time-domain location, or time-domain range of an SSB with a second SSB portion.

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

25. The method according to any one of claims 16-24, characterized in that, The first SSB portion satisfies at least one of the following: The period of the first SSB portion is greater than a first threshold, and the first threshold is determined based on at least one of the following: a first preset threshold, the type of the first SSB portion, the time information of the first SSB portion, the frequency information of the first SSB portion, the type of the first device, and the network type; The frequency interval of the synchronization grid 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: a second preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, and the period of the first SSB part. The number of synchronization grids where the first SSB part is located is less than or equal to or less than a third threshold on a preset bandwidth or a fixed bandwidth. The third threshold is determined based on at least one of the following: a third preset threshold, the type of the first SSB part, the time information of the first SSB part, the frequency information of the first SSB part, the frequency band information of the first SSB part, the type of the first device, the network type, the period of the first SSB part, and the step size of the synchronization grid where the first SSB part is located. The bandwidth of the first SSB portion is less than or equal to or less than a fourth threshold, which is determined based on at least one of the following: a fourth preset threshold, the type of the first SSB portion, the time information of the first SSB portion, the frequency information of the first SSB portion, the frequency band information of the first SSB portion, the type of the first device, the network type, the period of the first SSB portion, and the step size of the synchronization grid of the first SSB portion. The period or default period of the first SSB portion is a function of at least one of the following: the bandwidth of the first SSB portion, the maximum number of indices of the first SSB portion, the subcarrier spacing of the first SSB portion, and the subcarrier spacing index of the first SSB portion. The number of synchronization grids or the number of effective synchronization grids in the bandwidth of the first SSB portion is a function of at least one of the following: the period or default period of the first SSB portion, the bandwidth, the maximum number of indices of the first SSB portion, the subcarrier spacing of the first SSB portion, and the subcarrier spacing index of the first SSB portion.

26. A processing apparatus for a synchronization signal block, characterized in that, include: A detection unit is configured to detect a portion of a first synchronization signal block (SSB) within a first synchronization grid, wherein the first synchronization grid is associated with the first SSB portion. The processing unit is configured to process the second SSB portion according to the first SSB portion, wherein the first SSB portion and the second SSB portion constitute an SSB.

27. The apparatus of claim 26, wherein before the processing unit processes the second SSB portion according to the first SSB portion, it is further configured to: A wake-up signal is sent to the second device based on the first SSB portion.

28. The apparatus of claim 26 or 27, wherein the first SSB portion and the second SSB portion differ from at least one of the following: Center frequency; Top edge frequency; Lower edge frequency; Frequency domain bandwidth; Subcarrier alignment point; Time domain period; Transmission power; Power spectral density; Equivalent isotropic radiated power; Bit signal-to-noise ratio; The number of SSBs in the airspace within one cycle; Index of the spatial SSB.

29. The apparatus according to any one of claims 26-28, characterized in that, The first synchronization grid is the center frequency point of the first SSB portion, and the detection unit is used for: The first SSB portion is detected at its frequency domain position centered on each of the first synchronization grids, with a bandwidth equal to the bandwidth of the first SSB portion.

30. The apparatus according to any one of claims 26-28, characterized in that, The first synchronization grid is the upper edge frequency point of the first SSB portion, and the detection unit is used for: The first SSB portion is detected at its frequency domain position, with the first synchronization grid as its upper edge and the bandwidth being the bandwidth of the first SSB portion.

31. The apparatus according to any one of claims 26-30, characterized in that, The frequency position or frequency interval of the first synchronization grid is determined according to at least one of the following: The first type of device, frequency type, frequency point type, frequency band type, frequency range, network, and network node type.

32. A processing apparatus for a synchronization signal block, characterized in that, include: A transmitting unit is configured to transmit a first synchronization signal block (SSB) portion to a first device, wherein the first SSB portion is associated with a first synchronization grid. The first SSB portion is a part of the SSB, and the SSB also includes a second SSB portion.

33. The apparatus according to claim 32, characterized in that, The sending unit is used for: The SSB is sent to the first device.

34. The apparatus according to claim 32, characterized in that, The device further includes: A receiving unit is configured to receive a wake-up signal sent by the first device according to the first SSB portion; The sending unit is also used to send the second SSB portion to the first device.

35. The apparatus according to any one of claims 32-34, characterized in that, The first synchronization grid is any one of the following: The center frequency of the first SSB portion; The upper edge frequency of the first SSB portion; The lower edge frequency of the first SSB portion.

36. The apparatus according to any one of claims 32-35, characterized in that, The first SSB portion includes at least one of the following: The main synchronization signal PSS, all or part of the auxiliary synchronization signal SSS, time synchronization signal, frequency synchronization signal, time-frequency synchronization signal, all or part of the physical broadcast channel PBCH payload, all or part of the demodulation reference signal DMRS, and the first part of the main system information. 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.

37. A first device, characterized in that, It includes a transceiver, a processor, and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the processing method for the synchronization signal block as described in any one of claims 1 to 15.

38. A second device, characterized in that, It includes a transceiver, a processor, and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the processing method for the synchronization signal block as described in any one of claims 16 to 25.

39. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the processing method for the synchronization signal block as described in any one of claims 1-15, or implement the steps of the processing method for the synchronization signal block as described in any one of claims 16-25.

Images