Information determination method and apparatus for synchronization signal and PBCH block (SSB), and terminal and device

Abstract

The present application belongs to the technical field of communications. Disclosed are an information determination method and apparatus for a synchronization signal and PBCH block (SSB), and a terminal and a device. The information determination method for an SSB in the embodiments of the present application comprises: a terminal determining at least one of related information of a transport block (TB) of a first SSB and power information of the first SSB, wherein the first SSB is an SSB expanded on the basis of a second SSB.

Description

Method, device, terminal and equipment for determining information of synchronization signal block SSB

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410216581.6 filed in China on February 27, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method, device, terminal and equipment for determining information of a synchronization signal block (Synchronization Signal and PBCH block, SSB). Background Art

[0004] During the initial access phase of the New Radio (NR) network, the time-frequency synchronization accuracy based on SSB is relatively coarse due to the small bandwidth occupied by SSB and the small number of time-domain symbols. The Tracking Reference Signal (TRS) is generally used for precise time-frequency synchronization after the terminal enters the Radio Resource Control (RRC) connected state. This makes it difficult for the terminal to obtain good time-frequency tracking quality during the initial access and random access phases, thereby limiting the reception performance of the downlink signal.

[0005] Therefore, in order to enable non-connected terminals to better perform time-frequency tracking, it is possible to consider enhancing the SSB, thereby improving the performance of downlink transmission in this phase. For the enhanced SSB, its related information (such as power, transport block (TB) information, etc.) may change compared to the conventional SSB, so the problem of how to determine the enhanced SSB information needs further resolution. Summary of the Invention

[0006] The embodiments of the present application provide a method, apparatus, terminal and device for determining information of a synchronization signal block (SSB), which are used to solve the problem of how to determine enhanced SSB information.

[0007] In a first aspect, a method for determining information of a synchronization signal block (SSB) is provided, which is performed by a terminal. The method includes:

[0008] The terminal determines at least one of the relevant information of the transmission block TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0009] In a second aspect, a method for determining information of a synchronization signal block (SSB) is provided, which is performed by a network-side device. The method includes:

[0010] The network side device determines at least one of the relevant information of the TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0011] In a third aspect, a device for determining information of a synchronization signal block (SSB) is provided, which is applied to a terminal and includes:

[0012] The first determination module determines at least one of the relevant information of the transmission block TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0013] In a fourth aspect, a device for determining information of a synchronization signal block (SSB) is provided, which is applied to a network-side device and includes:

[0014] The second determination module is used to determine at least one of the relevant information of the TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0015] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0016] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to determine at least one of the relevant information of the TB of a first SSB and the power information of the first SSB, wherein the first SSB is an SSB extended based on the second SSB.

[0017] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0018] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to determine at least one of the relevant information of the TB of the first SSB and the power information of the first SSB, and the first SSB is an SSB extended based on the second SSB.

[0019] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0020] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0021] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used 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.

[0022] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method for determining the information of the synchronization signal block SSB as described in the first aspect, or to implement the steps of the method for determining the information of the synchronization signal block SSB as described in the second aspect.

[0023] In the thirteenth aspect, a computer program product is provided, comprising computer instructions, which, when executed by a processor, implement the steps of the method for determining information of the synchronization signal block SSB as described in the first aspect or the second aspect.

[0024] In an embodiment of the present application, a method for determining the TB information or power of the extended SSB is provided, which can support SSB resource expansion, thereby improving the performance of related downlink transmission, and is beneficial to the transmission performance in scenarios such as random access, cell switching, and cell free. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0026] FIG2 is a schematic structural diagram of an SSB according to an embodiment of the present application;

[0027] FIG3 is a schematic structural diagram of a TRS according to an embodiment of the present application;

[0028] FIG4 is a flowchart of a method for determining information of a synchronization signal block SSB according to an embodiment of the present application;

[0029] FIG5 is a second flow chart of a method for determining information of a synchronization signal block SSB according to an embodiment of the present application;

[0030] FIG6 is a schematic diagram of a structure of a device for determining information of a synchronization signal block SSB according to an embodiment of the present application;

[0031] FIG7 is a second structural diagram of the apparatus for determining information of a synchronization signal block SSB according to an embodiment of the present application;

[0032] FIG8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0033] FIG9 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0034] FIG10 is a schematic structural diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0036] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0037] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0038] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0039] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the 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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0040] When describing the embodiments of the present application, some concepts used in the following description are first explained.

[0041] 1. Synchronous Signal Block SSB

[0042] In the NR system, the synchronization signal and physical broadcast channel (PBCH) block SSB is used for initial access, and its structure is shown in Figure 2.

[0043] Among them, SSB is composed of the primary synchronization signal (PSS), the secondary synchronization signal (SSS), the PBCH, and the demodulation reference signal (DMRS) of the PBCH. PSS and SSS are used for coarse synchronization of time and frequency, PBCH is used to carry the master information block (MIB) of the broadcast message, and the DMRS of the PBCH is used for demodulation of the PBCH. In addition, the entire SSB occupies 4 orthogonal frequency division multiplex (OFDM) symbols in the time domain and a maximum of 20 resource blocks (RBs) in the frequency domain. Due to the limited time and frequency resources occupied by SSB, only relatively preliminary coarse time and frequency synchronization can be performed based on SSB.

[0044] When the terminal receives the SSB, the terminal can first detect the PSS sequence and obtain the physical cell identification (ID) according to 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) is obtained, that is, The terminal can further adjust the frequency offset based on the PSS and SSS. The terminal then detects the DMRS of the PBCH to perform channel estimation and demodulate the PBCH.

[0045] 2. Tracking Reference Signal TRS

[0046] TRS can be used for time-frequency tracking, that is, to perform timing estimation, delay spread estimation, frequency offset estimation and Doppler spread estimation. Timing estimation and frequency offset estimation can be used to complete the synchronization of the transmitter and receiver. The results of delay spread estimation and Doppler spread estimation are important parameters for channel estimation, which can be used to assist the DMRS of the physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH) to complete more accurate channel estimation. TRS can be used for RRC connected UE, that is, when the UE enters the RRC connected state, the time-frequency tracking performance is further adjusted based on the original SSB. For terminal energy saving, TRS can also be used for non-connected UE to perform time-frequency tracking.

[0047] TRS is a special set of Channel State Information Reference Signal (CSI-RS) resources. For TRS deployed on FR1 (low frequency), a UE can configure one or more TRS resource sets. Each TRS resource set contains 4 CSI-RS resources. These 4 CSI-RS resources exist in two consecutive time slots, and there are 2 CSI-RS resources in each time slot; for TRS deployed on FR2 (high frequency), a UE can also configure one or more TRS resource sets. Among them, the CSI-RS resources contained in a TRS resource set may only exist in one time slot. In this case, there are only 2 CSI-RS resources; and a TRS resource set can also contain 4 CSI-RS resources, which are distributed in pairs in two consecutive time slots. NR supports periodic and non-periodic TRS. For periodic TRS, the period optional value is 2 μ [10, 20, 40, 80] slots, 2 of which μ Related to the subcarrier spacing. In the frequency domain, the bandwidth of a TRS can be either a partial bandwidth (Bandwidth part, BWP) or min(52, BWP).

[0048] Assume that TRS is deployed in FR1, with a period of 20 slots, a periodic offset of 5 slots, and the distribution of TRS symbols within a slot is l∈{4,8}. The deployed BWP bandwidth is 20 MHz, and the subcarrier spacing (SCS) is 15 kHz. In the frequency domain, the number of RBs containing TRS is 52. The time-frequency mapping of TRS is shown in Figure 3.

[0049] Below, in combination with the accompanying drawings, a method for determining information of a synchronization signal block SSB provided in an embodiment of the present application is described in detail through some embodiments and application scenarios.

[0050] As shown in FIG4 , an embodiment of the present application provides a method for determining information of a synchronization signal block (SSB), which is applied to a terminal. The method includes:

[0051] Step 401: The terminal determines at least one of the relevant information of the transmission block TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0052] Optionally, the SSB of the embodiment of the present application may include at least one of the following modules: a synchronization signal, a broadcast signal, a broadcast channel (PBCH), a demodulation reference signal, a reference signal for time domain parameter tracking or frequency domain parameter tracking, other system message downlink broadcast channels or their control channels. The synchronization signal is, for example, a primary synchronization signal (PSS) or a secondary synchronization signal (SSS).

[0053] The first SSB is an SSB extended based on the second SSB. The second SSB is a non-extended SSB. The extension based on the second SSB may include at least one of the following: extending the second SSB on time domain resources, extending the second SSB on frequency domain resources, extending the second SSB on code domain resources, repeatedly transmitting the second SSB to achieve extension of time domain or frequency domain resources, or multiplexing the second SSB to achieve extension of time domain or frequency domain resources. The second SSB can be used for coarse time domain or frequency domain synchronization, and the first SSB can be used for precise time domain or frequency domain synchronization.

[0054] Optionally, the PSS and SSS of the embodiment of the present application may include at least one of the following signals: a synchronization sequence, a synchronization pilot, and a reference signal for time domain parameter tracking or frequency domain parameter tracking.

[0055] Optionally, the PBCH of the embodiment of the present application may include at least one of the following channels: a master information block broadcast channel, a synchronization channel, and other system message broadcast channels.

[0056] Optionally, in the embodiment of the present application, the size of the TB of the second SSB may be the size of the MIB or the size of the L1 payload. For example, the size of the PBCH TB may be the size of the MIB or the size of the L1 payload.

[0057] In this embodiment, after the resources of the second SSB are extended, for example, after the time domain resources or frequency domain resources of the second SSB are extended, determining the size of the TB (or payload) requires consideration of whether to increase the payload size or whether to use the same payload. For example, for PBCH, after the resources of the PBCH are extended, the size of the payload of the extended PBCH requires consideration of whether to increase the payload size or whether to use the same payload while reducing the code rate to improve the robustness of the PBCH.

[0058] Extension based on the second SSB can also be repeated transmission based on the second SSB, and the power of the repeatedly transmitted second SSB needs to be determined.

[0059] An embodiment of the present application provides a method for determining the TB information or power of the extended SSB, which can support SSB resource expansion, thereby improving the performance of related downlink transmission, and is beneficial to the transmission performance in scenarios such as random access, cell switching, and cell free.

[0060] Optionally, the first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following:

[0061] (1) The time domain resources of the first SSB are greater than the time domain resources of the second SSB; the second SSB is a non-extended SSB, and the first SSB may be an SSB with time domain resources extended based on the second SSB, then the time domain resources of the first SSB are greater than the time domain resources of the second SSB.

[0062] (2) The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB; the second SSB is a non-extended SSB, and the first SSB may be an SSB with frequency domain resources extended based on the second SSB, then the frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB.

[0063] (3) The code domain resources of the first SSB are greater than the code domain resources of the second SSB; the second SSB is a non-extended SSB, and the first SSB may be an SSB with code domain resources extended based on the second SSB, then the code domain resources of the first SSB are greater than the code domain resources of the second SSB.

[0064] (4) The first SSB includes multiple repeatedly transmitted second SSBs, the second SSB is a non-extended SSB, and an extended SSB can be implemented based on the repeated transmission of the second SSB. In this case, the first SSB includes multiple repeatedly transmitted second SSBs.

[0065] As an optional embodiment, the TB-related information includes at least one of the following:

[0066] (1) TB size: When the SSB resource is extended, the size of the payload of the extended SSB needs to be determined based on whether the payload size increases or whether the same payload needs to be used but the bitrate is reduced. The extended SSB supports different TBs than the pre-extended SSB.

[0067] (2) TB retransmission information: The extended SSB supports TB retransmission relative to the SSB before extension, and the terminal can determine the TB of the retransmission of the extended SSB.

[0068] Optionally, the repeated transmission information of the TB includes at least one of the following:

[0069] TB supports or does not support repeated transmission of information;

[0070] Number of TB retransmissions.

[0071] (3) TB quantization factor: The extended SSB supports TB scaling relative to the SSB before extension, so the terminal can determine the TB quantization factor of the extended SSB.

[0072] (4) TB modulation order: The extended SSB supports different TB modulation orders compared to the SSB before extension. The terminal can determine the TB modulation order of the extended SSB.

[0073] (5) TB transmission mode: The extended SSB supports multiple TB transmissions compared to the SSB before extension. The terminal can determine the transmission mode of multiple TBs corresponding to the extended SSB.

[0074] Optionally, the TB transmission method includes at least one of the following:

[0075] Multiple TBs transmit multiple second SSBs through frequency division multiplexing;

[0076] Multiple TBs transmit multiple second SSBs through time division multiplexing;

[0077] Each second SSB or each group of second SSBs corresponds to a different TB.

[0078] In this embodiment, frequency division multiplexing of multiple SSBs is supported, and each or each group of SSBs uses a different TB; or, time division multiplexing of multiple SSBs is supported, and each or each group of SSBs uses a different TB.

[0079] As an optional embodiment, determining the relevant information of the TB of the first SSB includes at least one of the following:

[0080] Determine relevant information of the TB of the first SSB according to the instruction information of the network side device;

[0081] Determine relevant information of the TB of the first SSB based on the first information.

[0082] In this embodiment, the network side device may indicate the TB-related information of the first SSB, for example: the network side device indicates the TB-related information in the TB of the non-extended SSB, or the network side device indicates the TB-related information by activating or enabling the signal or channel of the SSB, or the network side device indicates the TB-related information through the resource configuration signaling of the first SSB, or the network side device indicates the TB-related information through the modulation and coding scheme (MCS) configuration signaling.

[0083] The terminal may also determine the TB-related information of the first SSB based on the first information. Optionally, the first information includes at least one of the following:

[0084] 1) the index of the first SSB;

[0085] 2) The frequency domain position of the first SSB; for example, a sync raster.

[0086] 3) the subcarrier spacing of the first SSB;

[0087] 4) the transmission timing of the first SSB;

[0088] 5) a transmission window for the first SSB, which may be a specific transmission window;

[0089] 6) A ratio of the time domain resources of the first SSB to the time domain resources of the second SSB;

[0090] For example, when the time domain resources of the extended PBCH are X times the time domain resources of the PBCH before extension, and X exceeds a certain threshold, repeated transmission of TB is supported, where X is a positive integer.

[0091] Alternatively, when the time domain resources of the extended PBCH are Y times the time domain resources of the PBCH before extension, the quantization factor of the TB is 1 / Y, and the TB size of the PBCH remains unchanged, where Y is a positive integer.

[0092] Alternatively, when the time domain resources of the extended PBCH are Z times the time domain resources of the PBCH before extension, the modulation order of the extended PBCH is 1 / Z of the modulation order of the non-extended PBCH. At this time, the TB size of the PBCH remains unchanged, where Z is a positive integer.

[0093] 7) A ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB;

[0094] 8) The ratio of the code domain resources of the first SSB to the code domain resources of the second SSB;

[0095] 9) The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB; in this case, the terminal can determine the relevant information of the TB based on the total number of time domain and frequency domain resources.

[0096] For example, when the resources (time domain resources and frequency domain resources) of the extended PBCH are X times the resources (time domain resources and frequency domain resources) of the PBCH before extension, and X exceeds a certain threshold, repeated transmission of TB is supported.

[0097] When the resources (time domain resources and frequency domain resources) of the extended PBCH are Y times the PBCH resources (time domain resources and frequency domain resources) before extension, the modulation order of the extended PBCH is 1 / Y of the modulation order of the non-extended PBCH, and the TB size of the PBCH remains unchanged.

[0098] Optionally, the first information may also include a proportional relationship between the time-frequency code domain resources of the first SSB and the time-frequency code domain resources of the second SSB.

[0099] The following example illustrates a specific implementation method in which the terminal determines the relevant information of the TB.

[0100] Optionally, taking the SSB including PBCH as an example, the terminal determines the size of the TB of the extended PBCH.

[0101] Specifically, the time domain resources, frequency domain resources, or code domain resources of the extended PBCH support determination of different TBs compared to the PBCH before extension.

[0102] The size of the extended PBCH TB may be indicated by the network side device, for example, by indicating it in the non-extended PBCH payload, or by indicating it through a signal or channel that activates or enables extended SSB. Alternatively, the terminal determines the size of the extended PBCH TB based on one or more of the following factors:

[0103] SSB index;

[0104] The frequency domain location of the SSB, such as the sync raster;

[0105] Subcarrier spacing of SSB;

[0106] SSB transmission timing;

[0107] Specific transmission window for SSB.

[0108] Optionally, taking the SSB including PBCH as an example, the terminal determines the repeated transmission information of the TB of the extended PBCH.

[0109] Specifically, the extended PBCH supports repeated TBs. The repeated transmission information of the TBs may be indicated by the network side device, for example, the network side device indicates whether the repeated transmission of the TB is supported or the number of repeated transmissions. Alternatively, the terminal determines whether the repeated transmission of the TB is supported or the number of repeated transmissions based on one or more of the following factors:

[0110] SSB index;

[0111] The frequency domain location of the SSB, such as the sync raster;

[0112] Subcarrier spacing of SSB;

[0113] SSB transmission timing;

[0114] SSB specific transmission window;

[0115] The resource ratio of the extended SSB relative to the pre-extended SSB. This can be the time domain resource ratio, frequency domain resource ratio, code domain resource ratio, time-frequency resource ratio, etc. For example, when the extended PBCH resources are X times the pre-extended PBCH resources, and X exceeds a certain threshold, repeated transmission of TBs is supported.

[0116] Optionally, taking the SSB including PBCH as an example, the terminal determines a scaling factor of the TB of the extended PBCH.

[0117] Specifically, the time domain resources, frequency domain resources, or code domain resources of the PBCH are extended, and the extended PBCH supports TB scaling compared to the PBCH before the extension.

[0118] The quantization factor of TB can be determined based on the network side device configuration, for example: the network side device indicates in the non-extended PBCH payload, or the network side device indicates by activating or enabling the signal or channel of the extended SSB, or the network side device configures it through the resource configuration signaling or MCS configuration signaling of the extended PBCH.

[0119] Alternatively, the terminal may determine the quantization factor of TB based on at least one of the following factors:

[0120] SSB index;

[0121] The frequency domain location of the SSB, such as the sync raster;

[0122] Subcarrier spacing of SSB;

[0123] SSB transmission timing;

[0124] SSB specific transmission window;

[0125] The resource ratio of the extended SSB relative to the pre-extended SSB. This can be the time domain resource ratio, frequency domain resource ratio, code domain resource ratio, time-frequency resource ratio, etc. For example, when the resources of the extended PBCH are Y times that of the non-extended PBCH, the TB scaling factor is 1 / Y, and the PBCH payload size remains unchanged.

[0126] Optionally, taking the SSB including PBCH as an example, the terminal determines the modulation order of the TB of the extended PBCH.

[0127] Specifically, the extended PBCH supports a different modulation order than the non-extended PBCH.

[0128] The modulation order of TB can be determined based on the network side device configuration, for example: the network side device indicates it in the non-extended PBCH payload, or the network side device indicates it by activating or enabling the signal or channel of the extended SSB, or the network side device configures it through the resource configuration signaling or MCS configuration signaling of the extended PBCH.

[0129] Alternatively, the terminal may determine the modulation order of the TB based on at least one of the following factors:

[0130] SSB index;

[0131] The frequency domain location of the SSB, such as the sync raster;

[0132] Subcarrier spacing of SSB;

[0133] SSB transmission timing;

[0134] SSB specific transmission window;

[0135] The resource ratio of the extended SSB relative to the pre-extended SSB. This can be the time domain resource ratio, frequency domain resource ratio, code domain resource ratio, time-frequency resource ratio, etc. For example, when the resources of the extended PBCH are Z times that of the non-extended PBCH, the modulation order of the extended PBCH is 1 / Z of the modulation order of the non-extended PBCH, and the PBCH payload size remains unchanged.

[0136] Optionally, taking SSB including PBCH as an example, the terminal determines the transmission method of the TB of the extended PBCH.

[0137] Specifically, the extended PBCH supports multiple TB transmissions, for example: frequency division multiplexing of multiple PBCHs, with each or each group of PBCHs using a different TB; or time division multiplexing of multiple PBCHs, with each or each group of PBCHs using a different TB.

[0138] In this embodiment, the extended PBCH is conducive to accurate time and frequency synchronization and can support multiple TBs, so that the PBCH can carry more content, allowing the terminal to obtain more information before parsing the SIB.

[0139] As an optional embodiment, determining the power information of the first SSB includes:

[0140] Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

[0141] In this embodiment, in order to support extended SSB, repeated transmission of non-extended SSB can be introduced. In this case, the power of the SSB for multiple repeated transmissions of the extended SSB needs to be determined. Specifically, determining the power information of the SSB can be determining the power value or power offset value of the SSB.

[0142] Optionally, the power information of the first SSB is carried by the second information;

[0143] The second information includes at least one of the following:

[0144] (1) Power information of the broadcast signal; such as the PBCH broadcast signal, other downlink broadcast signals, etc.; for example: the power value of the first SSB is the power value of the broadcast signal, or the power value of the first SSB is determined based on the power value of the broadcast signal, or the power value of the first SSB is carried in the power configuration of the broadcast signal.

[0145] (2) Power information of the synchronization signal; for example, the power value of the first SSB is the power value of the synchronization signal, or the power value of the first SSB is determined according to the power value of the synchronization signal, or the power value of the first SSB is carried in the power configuration of the synchronization signal.

[0146] (3) Power information of the primary synchronization signal; for example, the power value of the first SSB is the power value of the primary synchronization signal, or the power value of the first SSB is determined according to the power value of the primary synchronization signal, or the power value of the first SSB is carried in the power configuration of the primary synchronization signal.

[0147] (4) Power information of the secondary synchronization signal; for example, the power value of the first SSB is the power value of the secondary synchronization signal, or the power value of the first SSB is determined according to the power value of the secondary synchronization signal, or the power value of the first SSB is carried in the power configuration of the secondary synchronization signal.

[0148] (5) Power information of the common reference signal; for example, the power value of the first SSB is the power value of the common reference signal, or the power value of the first SSB is determined based on the power value of the common reference signal, or the power value of the first SSB is carried in the power configuration of the common reference signal.

[0149] (6) Public power configuration information; for example, the power value of the first SSB is the power value in the public power configuration information, or the power value of the first SSB is determined according to the public power configuration information, or the power value of the first SSB is carried in the public power configuration information.

[0150] In this embodiment, the power information of the first SSB may be the power configuration of any one of the multiple signals. The above embodiment only uses the power information as an example of a power value. The power offset value of the SSB may also be the power configuration of any one of the multiple signals, or may be determined based on the power configuration of any one of the multiple signals, or may be carried in the power configuration of any one of the multiple signals.

[0151] Optionally, determining power information of each repeatedly transmitted SSB in the first SSB includes:

[0152] (1) Determine the power value based on the index of each repeatedly transmitted SSB. In this embodiment, it is supported to determine different powers of repeatedly transmitted SSBs based on each SSB index (per SSB index). That is, the power of the SSB is determined independently for different SSB indices.

[0153] (2) Determine the power value based on the index group to which the index of each repeatedly transmitted SSB belongs. In this embodiment, it is supported to determine different powers of the repeatedly transmitted SSB based on each SSB index group. That is, the power of the SSB is determined independently for different SSB index groups.

[0154] (3) Determine the power value based on the time unit in which each repeatedly transmitted SSB is located; the time unit may be a predefined time window, which may be configured by the network device or agreed upon by the protocol. This embodiment supports determining the power of different repeatedly transmitted SSBs based on the time unit, that is, configuring independent or different powers of repeatedly transmitted SSBs in different time units.

[0155] (4) Determine the power value of the repeatedly transmitted SSB based on the power value of the non-repeatedly transmitted SSB. The non-repeatedly transmitted SSB may be a non-extended SSB. For example, the power value of the repeatedly transmitted SSB is higher than the power value of the non-repeatedly transmitted SSB, thereby achieving fine synchronization. Alternatively, the power value of the repeatedly transmitted SSB is lower than the power value of the non-repeatedly transmitted SSB, thereby achieving fast coarse synchronization.

[0156] Optionally, determining power information of each repeatedly transmitted SSB in the first SSB includes:

[0157] (1) Determine the power offset value of each repeated SSB transmission separately. In this embodiment, for repeated SSB transmission, it supports determining the power offset values ​​of different repeated parts separately.

[0158] (2) Determine the power offset value based on the index of each repeatedly transmitted SSB. In this embodiment, different power offset values ​​for repeatedly transmitted SSBs are determined based on each SSB index. That is, the power offset values ​​for different repeatedly transmitted SSBs are determined independently for different SSB indices.

[0159] (3) Determining the power offset value based on the index group to which the index of each repeatedly transmitted SSB belongs. In this embodiment, different power offset values ​​for repeatedly transmitted SSBs are determined based on each SSB index group. That is, the power offset values ​​for different repeatedly transmitted SSBs are determined independently for different SSB index groups.

[0160] (4) Determine the power offset value based on the time unit in which each repeatedly transmitted SSB is located; the time unit may be a predefined time window, which may be configured by a network device or agreed upon by a protocol. This embodiment supports determining different power offset values ​​for repeatedly transmitted SSBs based on time units, i.e., configuring independent or different power offset values ​​for repeatedly transmitted SSBs in different time units.

[0161] (5) Determining a power offset value of a repeatedly transmitted SSB relative to a target SSB; the target SSB may be a specific repeatedly transmitted SSB. The terminal may determine the power offset of other repeatedly transmitted SSBs relative to the specific repeatedly transmitted SSB based on the power of the specific repeatedly transmitted SSB.

[0162] (6) Determining an offset value of the power of the repeatedly transmitted SSB relative to a signal included in a target SSB index; the target SSB index may be an index of a specific repeatedly transmitted SSB. The terminal may determine the power offset of other repeatedly transmitted SSBs relative to a specific SSB based on the power of the SSB corresponding to the specific SSB index.

[0163] (7) Determining a power offset value of a repeatedly transmitted SSB relative to a signal included in a target SSB index group; the target SSB index group may be an index group including some repeatedly transmitted SSBs. The terminal may determine a power offset of other repeatedly transmitted SSBs relative to a specific SSB index group based on the power of the SSB corresponding to the SSB index group.

[0164] (8) Determine an offset value of the repeatedly transmitted SSB relative to a reference power; the reference power may be configured by a network device or specified by a protocol. The terminal may determine an offset of the repeatedly transmitted SSB relative to a reference power based on a reference power.

[0165] As an optional embodiment, the method further includes:

[0166] The terminal receives first signaling sent by a network-side device, where the first signaling is used to indicate at least one of the following:

[0167] (1) Resource information of the first SSB, which is used to indicate the transmission resources of the first SSB; the resource information may be all the resource information corresponding to the first SSB, or the resource information of the extended part of the first SSB relative to the second SSB, for example: the first signaling indicates the resources of the second SSB and the resources of the additional extended part, and the resources of the second SSB and the resources of the additional extended part are added together to form the resources of the first SSB.

[0168] (2) Validation information of the first SSB, the validation information is used to indicate whether the first SSB is valid; the validation information may include whether the first SSB is valid or the valid time, etc. For example, the validation of the first SSB may refer to triggering the second SSB to be extended to become the first SSB, and the validation of the first SSB may include: validating upon receiving signaling for indicating validation (the second SSB is triggered to be extended to the first SSB); validating at a preset time after receiving the signaling for indicating validation, and the preset time may be a network-side device configuration or protocol specification.

[0169] (3) Transmission information of the first SSB, where the transmission information is used to indicate whether the first SSB is transmitted. The network-side device may directly indicate to the terminal whether to transmit the first SSB, or indicate to the terminal whether to receive the first SSB.

[0170] In this embodiment, if continuous transmission of the first SSB may result in a waste of resources, the network-side device can implement flexible configuration and activation of the first SSB. For example, the network-side device can pre-configure the resources of the first SSB, and the first SSB can be effective when the resources of the first SSB are configured, or it can be determined whether to be effective based on the effectiveness information of the first SSB. For example: the network side device pre-configures the resources of the first SSB, and the configured resources of the first SSB are considered to be effective. The network side device sends the first SSB, and the terminal can perform fine synchronization based on the first SSB; or, in the case of pre-configured resources of the first SSB, the network side device sends the effectiveness information of the first SSB to the terminal (which can be a signaling, the name is not limited), and the first SSB becomes effective when the effectiveness information indicates that the first SSB is effective, and the terminal can perform fine synchronization based on the first SSB; or, the network side device pre-configures the resources of the first SSB, but it is not effective (it can be that no effectiveness indication is received, or an invalid indication is received, or an ineffective indication is received, etc.), then the resources of the first SSB are unavailable, the network side device does not send the first SSB, or the terminal does not receive the first SSB, and the terminal can only use the non-extended SSB (i.e., the second SSB) for coarse synchronization.

[0171] The network side device can also directly indicate whether the first SSB is effective, that is, there is no need to pre-configure the resource information of the first SSB. The network side device directly indicates that the first SSB is effective, then the second SSB is extended to the first SSB, and the terminal can perform fine synchronization based on the first SSB. For example: a conventional second SSB is sent for coarse synchronization. If the terminal or the network side device triggers the first SSB to take effect (which can be indicated by signaling), the second SSB can be extended to the first SSB, and the terminal can perform fine synchronization based on the first SSB. Alternatively, the network side device directly indicates that the first SSB is not effective. If the first SSB has been effective (activated) before, the first SSB is restored to the second SSB.

[0172] It should be noted that the “effectiveness” described in the embodiments of the present application can also be understood as “activation” or “enabling”.

[0173] In this embodiment, in order to enable non-connected terminals to better perform time-frequency tracking, resource extension enhancement of SSB is considered. In order to support SSB resource extension, how to determine the TB size of PBCH and the power determination of extended SSB based on SSB repetition are considered from the two aspects of transmission performance and transmission capacity. This application also proposes a flexible activation and deactivation method for extended SSB, thereby reducing SSB resource overhead, improving resource utilization, and reducing energy consumption of network-side devices and terminals for sending and receiving SSB.

[0174] An embodiment of the present application provides a method for determining the TB information or power of the extended SSB, which can support SSB resource expansion, thereby improving the performance of related downlink transmission, and is beneficial to the transmission performance in scenarios such as random access, cell switching, and cell free.

[0175] As shown in FIG5 , an embodiment of the present application further provides a method for determining information of a synchronization signal block (SSB), which is performed by a network-side device. The method includes:

[0176] Step 501: The network side device determines at least one of the relevant information of the TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0177] In this embodiment, the first SSB is an SSB extended based on the second SSB. The second SSB is a non-extended SSB. The extension based on the second SSB may include at least one of the following: extending the second SSB on time domain resources, extending the second SSB on frequency domain resources, extending the second SSB on code domain resources, repeatedly transmitting the second SSB to achieve extension of time domain or frequency domain resources, and multiplexing the second SSB to achieve extension of time domain or frequency domain resources. The second SSB can be used for coarse time domain or frequency domain synchronization, and the first SSB can be used for precise time domain or frequency domain synchronization.

[0178] After the resources of the second SSB are extended, for example, after the time domain resources or frequency domain resources of the second SSB are extended, determining the size of the TB (or payload) requires consideration of whether to increase the payload size or whether to use the same payload. For example, for PBCH, after the PBCH resources are extended, the size of the extended PBCH payload requires consideration of whether to increase the payload size or whether to use the same payload while reducing the code rate to improve the robustness of the PBCH.

[0179] Extension based on the second SSB can also be repeated transmission based on the second SSB, and the power of the repeatedly transmitted second SSB needs to be determined.

[0180] An embodiment of the present application provides a method for determining the TB information or power of the extended SSB, which can support SSB resource expansion, thereby improving the performance of related downlink transmission, and is beneficial to the transmission performance in scenarios such as random access, cell switching, and cell free.

[0181] Optionally, the first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following:

[0182] (1) The time domain resources of the first SSB are greater than the time domain resources of the second SSB; the second SSB is a non-extended SSB, and the first SSB may be an SSB with time domain resources extended based on the second SSB, then the time domain resources of the first SSB are greater than the time domain resources of the second SSB.

[0183] (2) The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB; the second SSB is a non-extended SSB, and the first SSB may be an SSB with frequency domain resources extended based on the second SSB, then the frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB.

[0184] (3) The code domain resources of the first SSB are greater than the code domain resources of the second SSB; the second SSB is a non-extended SSB, and the first SSB may be an SSB with code domain resources extended based on the second SSB, then the code domain resources of the first SSB are greater than the code domain resources of the second SSB.

[0185] (4) The first SSB includes multiple repeatedly transmitted second SSBs, the second SSB is a non-extended SSB, and an extended SSB can be implemented based on the repeated transmission of the second SSB. In this case, the first SSB includes multiple repeatedly transmitted second SSBs.

[0186] As an optional embodiment, the TB-related information includes at least one of the following:

[0187] (1) TB size: When the SSB resource is extended, the size of the payload of the extended SSB needs to be determined based on whether the payload size increases or whether the same payload needs to be used but the bitrate is reduced. The extended SSB supports different TBs than the pre-extended SSB.

[0188] (2) TB retransmission information: The extended SSB supports TB retransmission relative to the SSB before extension, and the terminal can determine the TB of the retransmission of the extended SSB.

[0189] Optionally, the repeated transmission information of the TB includes at least one of the following:

[0190] TB supports or does not support repeated transmission of information;

[0191] Number of TB retransmissions.

[0192] (3) TB quantization factor: The extended SSB supports TB scaling relative to the SSB before extension, so the terminal can determine the TB quantization factor of the extended SSB.

[0193] (4) TB modulation order: The extended SSB supports different TB modulation orders compared to the SSB before extension. The terminal can determine the TB modulation order of the extended SSB.

[0194] (5) TB transmission mode: The extended SSB supports multiple TB transmissions compared to the SSB before extension. The terminal can determine the transmission mode of multiple TBs corresponding to the extended SSB.

[0195] Optionally, the TB transmission method includes at least one of the following:

[0196] Multiple TBs transmit multiple second SSBs through frequency division multiplexing;

[0197] Multiple TBs transmit multiple second SSBs through time division multiplexing;

[0198] Each second SSB or each group of second SSBs corresponds to a different TB.

[0199] In this embodiment, frequency division multiplexing of multiple SSBs is supported, and each or each group of SSBs uses a different TB; or, time division multiplexing of multiple SSBs is supported, and each or each group of SSBs uses a different TB.

[0200] As an optional embodiment, determining the relevant information of the TB of the first SSB includes:

[0201] Determine relevant information of the TB of the first SSB based on the first information.

[0202] In this embodiment, the network side device can determine the TB-related information of the first SSB based on the first information.

[0203] Optionally, the first information includes at least one of the following:

[0204] 1) the index of the first SSB;

[0205] 2) the frequency domain position of the first SSB;

[0206] 3) the subcarrier spacing of the first SSB;

[0207] 4) the transmission timing of the first SSB;

[0208] 5) a transmission window for the first SSB;

[0209] 6) A ratio of the time domain resources of the first SSB to the time domain resources of the second SSB;

[0210] For example, when the time domain resources of the extended PBCH are X times the time domain resources of the PBCH before extension, and X exceeds a certain threshold, repeated transmission of TB is supported, where X is a positive integer.

[0211] Alternatively, when the time domain resources of the extended PBCH are Y times the time domain resources of the PBCH before extension, the quantization factor of the TB is 1 / Y, and the TB size of the PBCH remains unchanged, where Y is a positive integer.

[0212] Alternatively, when the time domain resources of the extended PBCH are Z times the time domain resources of the PBCH before extension, the modulation order of the extended PBCH is 1 / Z of the modulation order of the non-extended PBCH. At this time, the TB size of the PBCH remains unchanged, where Z is a positive integer.

[0213] 7) A ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB;

[0214] 8) The ratio of the code domain resources of the first SSB to the code domain resources of the second SSB;

[0215] 9) The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

[0216] For example, when the resources (time domain resources and frequency domain resources) of the extended PBCH are X times the resources (time domain resources and frequency domain resources) of the PBCH before extension, and X exceeds a certain threshold, repeated transmission of TB is supported.

[0217] When the resources (time domain resources and frequency domain resources) of the extended PBCH are Y times the PBCH resources (time domain resources and frequency domain resources) before extension, the modulation order of the extended PBCH is 1 / Y of the modulation order of the non-extended PBCH, and the TB size of the PBCH remains unchanged.

[0218] As an optional embodiment, the method further includes:

[0219] Send indication information to the terminal, where the indication information is used to indicate relevant information of the TB.

[0220] In this embodiment, the network side device can indicate the TB-related information of the first SSB to the terminal, for example: the network side device indicates the TB-related information in the TB of the non-extended SSB, or the network side device indicates the TB-related information by activating or enabling the signal or channel of the SSB, or the network side device indicates the TB-related information through the resource configuration signaling of the first SSB, or the network side device indicates the TB-related information through the MCS configuration signaling.

[0221] As an optional embodiment, determining the power information of the first SSB includes:

[0222] Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

[0223] In this embodiment, in order to support extended SSB, repeated transmission of non-extended SSB can be introduced. In this case, the power of the SSB for multiple repeated transmissions of the extended SSB needs to be determined. Specifically, determining the power information of the SSB can be determining the power value or power offset value of the SSB.

[0224] Optionally, the method further includes:

[0225] Sending power information of the first SSB to the terminal, where the power information of the first SSB is carried by the second information;

[0226] The second information includes at least one of the following:

[0227] Power information of broadcast signals;

[0228] Power information of synchronization signal;

[0229] Power information of the main synchronization signal;

[0230] Power information of the auxiliary synchronization signal;

[0231] Power information of the common reference signal;

[0232] Public power configuration information.

[0233] In this embodiment, after determining the power information of the first SSB, the network-side device may indicate the power information of the first SSB to the terminal. For example, the power information of the broadcast signal is sent to the terminal, and the power value of the first SSB is the power value of the broadcast signal, or the power value of the first SSB is determined based on the power value of the broadcast signal, or the power value of the first SSB is carried in the power configuration of the broadcast signal.

[0234] Alternatively, the power information of the synchronization signal is sent to the terminal, the power value of the first SSB is the power value of the synchronization signal, or the power value of the first SSB is determined according to the power value of the synchronization signal, or the power value of the first SSB is carried in the power configuration of the synchronization signal.

[0235] Alternatively, power information of a common reference signal is sent to the terminal, and the power value of the first SSB is the power value of the common reference signal, or the power value of the first SSB is determined according to the power value of the common reference signal, or the power value of the first SSB is carried in the power configuration of the common reference signal.

[0236] Alternatively, public power configuration information is sent to the terminal, the power value of the first SSB is the power value in the public power configuration information, or the power value of the first SSB is determined according to the public power configuration information, or the power value of the first SSB is carried in the public power configuration information.

[0237] In this embodiment, the network side device can indicate the power information of the first SSB in one or more of the above-mentioned methods. The above-mentioned embodiment only takes the power information as an example of a power value. The power offset value of the SSB can also be the power configuration of any one of the above-mentioned multiple signals, or be determined according to the power configuration of any one of the above-mentioned multiple signals, or be carried in the power configuration of any one of the above-mentioned multiple signals.

[0238] As an optional embodiment, determining the power information of each repeatedly transmitted SSB in the first SSB includes:

[0239] (1) Determine the power value based on the index of each repeatedly transmitted SSB. In this embodiment, it is supported to determine different powers of repeatedly transmitted SSBs based on each SSB index (per SSB index). That is, the power of the SSB is determined independently for different SSB indices.

[0240] (2) Determine the power value based on the index group to which the index of each repeatedly transmitted SSB belongs. In this embodiment, it is supported to determine different powers of the repeatedly transmitted SSB based on each SSB index group. That is, the power of the SSB is determined independently for different SSB index groups.

[0241] (3) Determine the power value based on the time unit in which each repeatedly transmitted SSB is located; the time unit may be a predefined time window, which may be configured by the network device or agreed upon by the protocol. This embodiment supports determining the power of different repeatedly transmitted SSBs based on the time unit, that is, configuring independent or different powers of repeatedly transmitted SSBs in different time units.

[0242] (4) Determine the power value of the repeatedly transmitted SSB based on the power value of the non-repeatedly transmitted SSB. The non-repeatedly transmitted SSB may be a non-extended SSB. For example, the power value of the repeatedly transmitted SSB is higher than the power value of the non-repeatedly transmitted SSB, so that the terminal can achieve fine synchronization. Alternatively, the power value of the repeatedly transmitted SSB is lower than the power value of the non-repeatedly transmitted SSB, so that the terminal can achieve fast coarse synchronization.

[0243] As an optional embodiment, determining the power information of each repeatedly transmitted SSB in the first SSB includes at least one of the following:

[0244] (1) Determine the power offset value of each repeated SSB transmission separately. In this embodiment, for repeated SSB transmission, it supports determining the power offset values ​​of different repeated parts separately.

[0245] (2) Determine the power offset value based on the index of each repeatedly transmitted SSB. In this embodiment, different power offset values ​​for repeatedly transmitted SSBs are determined based on each SSB index. That is, the power offset values ​​for different repeatedly transmitted SSBs are determined independently for different SSB indices.

[0246] (3) Determining the power offset value based on the index group to which the index of each repeatedly transmitted SSB belongs. In this embodiment, different power offset values ​​for repeatedly transmitted SSBs are determined based on each SSB index group. That is, the power offset values ​​for different repeatedly transmitted SSBs are determined independently for different SSB index groups.

[0247] (4) Determine the power offset value based on the time unit in which each repeatedly transmitted SSB is located; the time unit may be a predefined time window, which may be configured by a network device or agreed upon by a protocol. This embodiment supports determining different power offset values ​​for repeatedly transmitted SSBs based on time units, i.e., configuring independent or different power offset values ​​for repeatedly transmitted SSBs in different time units.

[0248] (5) Determining a power offset value of the repeatedly transmitted SSB relative to a target SSB; the target SSB may be a specific repeatedly transmitted SSB. The network side pen may determine the power offset of other repeatedly transmitted SSBs relative to the specific repeatedly transmitted SSB based on the power of the specific repeatedly transmitted SSB.

[0249] (6) Determining an offset value of the power of the repeatedly transmitted SSB relative to a signal included in a target SSB index; the target SSB index may be an index of a specific repeatedly transmitted SSB. The network-side device may determine the power offset of other repeatedly transmitted SSBs relative to a specific SSB based on the power of the SSB corresponding to the specific SSB index.

[0250] (7) Determining a power offset value of the repeatedly transmitted SSB relative to a signal included in a target SSB index group; the target SSB index group may be an index group including some repeatedly transmitted SSBs. The network-side device may determine the power offset of other repeatedly transmitted SSBs relative to a specific SSB index group based on the power of the SSB corresponding to the SSB index group.

[0251] (8) Determining an offset value of the repeatedly transmitted SSB relative to a reference power; the reference power may be configured by a network-side device or specified by a protocol. The network-side device may determine the offset of the repeatedly transmitted SSB relative to a reference power based on a reference power.

[0252] As an optional embodiment, the method further includes:

[0253] The network-side device sends a first signaling to the terminal, where the first signaling is used to indicate at least one of the following:

[0254] (1) Resource information of the first SSB, which is used to indicate the transmission resources of the first SSB; the resource information may be all the resource information corresponding to the first SSB, or the resource information of the extended part of the first SSB relative to the second SSB, for example: the first signaling indicates the resources of the second SSB and the resources of the additional extended part, and the resources of the second SSB and the resources of the additional extended part are added together to form the resources of the first SSB.

[0255] (2) Validation information of the first SSB, the validation information is used to indicate whether the first SSB is valid; the validation information may include whether the first SSB is valid or the valid time, etc. For example, the validation of the first SSB may refer to triggering the second SSB to be extended to become the first SSB, and the validation of the first SSB may include: validating upon receiving signaling for indicating validation (the second SSB is triggered to be extended to the first SSB); validating at a preset time after receiving the signaling for indicating validation, and the preset time may be a network-side device configuration or protocol specification.

[0256] (3) Transmission information of the first SSB, where the transmission information is used to indicate whether the first SSB is transmitted. The network-side device may directly indicate to the terminal whether to transmit the first SSB, or indicate to the terminal whether to receive the first SSB.

[0257] In this embodiment, if continuous transmission of the first SSB may result in a waste of resources, the network-side device can implement flexible configuration and activation of the first SSB. For example, the network-side device can pre-configure the resources of the first SSB, and the first SSB can be effective when the resources of the first SSB are configured, or it can be determined whether to be effective based on the effectiveness information of the first SSB. For example: the network side device pre-configures the resources of the first SSB, and the configured resources of the first SSB are considered to be effective. The network side device sends the first SSB, and the terminal can perform fine synchronization based on the first SSB; or, in the case of pre-configured resources of the first SSSB, the network side device sends the effectiveness information of the first SSB to the terminal, and the first SSB becomes effective when the effectiveness information indicates that the first SSB is effective, and the terminal can perform fine synchronization based on the first SSB; or, the network side device pre-configures the resources of the first SSB, but it is not effective (it may be that no effectiveness indication is received, or an invalid indication is received, or an ineffective indication is received, etc.), then the resources of the first SSB are unavailable, the network side device does not send the first SSB, or the terminal does not receive the first SSB, and the terminal can only use the non-extended SSB (i.e., the second SSB) for coarse synchronization.

[0258] The network-side device can also directly indicate whether the first SSB is effective, that is, there is no need to pre-configure the resource information of the first SSB. The network-side device directly indicates that the first SSB is effective, then the second SSB is extended to the first SSB, and the terminal can perform fine synchronization based on the first SSB. For example: a conventional second SSB is sent for coarse synchronization. If the terminal or the network-side device triggers the first SSB to take effect (which can be indicated by signaling), the second SSB can be extended to the first SSB, and the terminal can perform fine synchronization based on the first SSB. Alternatively, the network-side device directly indicates that the first SSB is not effective. If the first SSB has been effective before, the first SSB is restored to the second SSB.

[0259] It should be noted that the “effectiveness” described in the embodiments of the present application can also be understood as “activation” or “enabling”.

[0260] In this embodiment, in order to enable non-connected terminals to better perform time-frequency tracking, resource extension enhancement of SSB is considered. In order to support SSB resource extension, how to determine the TB size of PBCH and the power determination of extended SSB based on SSB repetition are considered from the two aspects of transmission performance and transmission capacity. This application also proposes a flexible activation and deactivation method for extended SSB, thereby reducing SSB resource overhead, improving resource utilization, and reducing energy consumption of network-side devices and terminals for sending and receiving SSB.

[0261] The method for determining information of a synchronization signal block SSB provided in an embodiment of the present application may be performed by a device for determining information of a synchronization signal block SSB. In the embodiment of the present application, the device for determining information of a synchronization signal block SSB is used as an example to illustrate the device for determining information of a synchronization signal block SSB provided in an embodiment of the present application.

[0262] As shown in FIG6 , an embodiment of the present application provides a synchronization signal block (SSB) information determination device 600, which is applied to a terminal and includes:

[0263] The first determination module 610 determines at least one of the relevant information of the transmission block TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0264] Optionally, the first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following:

[0265] The time domain resource of the first SSB is greater than the time domain resource of the second SSB;

[0266] The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB;

[0267] The code domain resource of the first SSB is greater than the code domain resource of the second SSB;

[0268] The first SSB includes a plurality of repeatedly transmitted second SSBs.

[0269] Optionally, the TB-related information includes at least one of the following:

[0270] TB size;

[0271] TB of repeated transmission information;

[0272] Quantification factor of TB;

[0273] Modulation order of TB;

[0274] TB transmission method.

[0275] Optionally, the first determining module is specifically configured to perform at least one of the following:

[0276] Determine relevant information of the TB of the first SSB according to the instruction information of the network side device;

[0277] Determine relevant information of the TB of the first SSB based on the first information.

[0278] Optionally, the first information includes at least one of the following:

[0279] the index of the first SSB;

[0280] The frequency domain position of the first SSB;

[0281] a subcarrier spacing of the first SSB;

[0282] a transmission timing of the first SSB;

[0283] a transmission window of the first SSB;

[0284] a ratio of the time domain resources of the first SSB to the time domain resources of the second SSB;

[0285] a ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB;

[0286] a ratio of the code domain resources of the first SSB to the code domain resources of the second SSB;

[0287] The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

[0288] Optionally, the repeated transmission information of the TB includes at least one of the following:

[0289] TB supports or does not support repeated transmission of information;

[0290] Number of TB retransmissions.

[0291] Optionally, the TB transmission method includes at least one of the following:

[0292] Multiple TBs transmit multiple second SSBs through frequency division multiplexing;

[0293] Multiple TBs transmit multiple second SSBs through time division multiplexing;

[0294] Each second SSB or each group of second SSBs corresponds to a different TB.

[0295] Optionally, the first determining module is specifically configured to:

[0296] Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

[0297] Optionally, the power information of the first SSB is carried by the second information;

[0298] The second information includes at least one of the following:

[0299] Power information of broadcast signals;

[0300] Power information of synchronization signal;

[0301] Power information of the main synchronization signal;

[0302] Power information of the auxiliary synchronization signal;

[0303] Power information of the common reference signal;

[0304] Public power configuration information.

[0305] Optionally, the first determining module is specifically configured to perform at least one of the following:

[0306] Determining the power value according to the index of each repeatedly transmitted SSB;

[0307] Determining the power value according to the index group to which the index of each repeatedly transmitted SSB belongs;

[0308] Determining the power value according to the time unit in which each repeatedly transmitted SSB is located;

[0309] The power value of the repeatedly transmitted SSB is determined according to the power value of the non-repeatedly transmitted SSB.

[0310] Optionally, the first determining module is specifically configured to perform at least one of the following:

[0311] Determine the power offset value of each repeatedly transmitted SSB separately;

[0312] Determining the power offset value according to the index of each repeatedly transmitted SSB;

[0313] Determining the power offset value according to the index group to which the index of each repeatedly transmitted SSB belongs;

[0314] Determining the power offset value according to the time unit in which each repeatedly transmitted SSB is located;

[0315] Determining an offset value of the power of the repeatedly transmitted SSB relative to the target SSB;

[0316] Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal contained in the target SSB index;

[0317] Determining an offset value of the power of the repeatedly transmitted SSB relative to the power of the signal included in the target SSB index group;

[0318] Determine the offset value of the repeatedly transmitted SSB relative to the reference power.

[0319] Optionally, the device further comprises:

[0320] A receiving module, configured to receive a first signaling sent by a network-side device, where the first signaling is used to indicate at least one of the following:

[0321] Resource information of the first SSB, where the resource information is used to indicate transmission resources of the first SSB;

[0322] Validation information of the first SSB, where the validation information is used to indicate whether the first SSB is valid;

[0323] The sending information of the first SSB is used to indicate whether the first SSB is sent.

[0324] The embodiments of the present application provide a method for determining the TB information or power of the extended SSB, which can support SSB resource expansion, thereby improving the performance of related downlink transmission, and is beneficial to the transmission performance in scenarios such as random access, cell switching, and cell free.

[0325] As shown in FIG7 , the present application further provides a synchronization signal block (SSB) information determination device 700, which is applied to a network-side device and includes:

[0326] The second determination module 710 is used to determine at least one of the relevant information of the TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0327] Optionally, the first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following:

[0328] The time domain resource of the first SSB is greater than the time domain resource of the second SSB;

[0329] The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB;

[0330] The code domain resource of the first SSB is greater than the code domain resource of the second SSB;

[0331] The first SSB includes a plurality of repeatedly transmitted second SSBs.

[0332] Optionally, the TB-related information includes at least one of the following:

[0333] TB size;

[0334] TB of repeated transmission information;

[0335] Quantification factor of TB;

[0336] Modulation order of TB;

[0337] TB transmission method.

[0338] Optionally, the second determining module is specifically configured to:

[0339] Determine relevant information of the TB of the first SSB based on the first information.

[0340] Optionally, the first information includes at least one of the following:

[0341] the index of the first SSB;

[0342] The frequency domain position of the first SSB;

[0343] a subcarrier spacing of the first SSB;

[0344] a transmission timing of the first SSB;

[0345] a transmission window of the first SSB;

[0346] a ratio of the time domain resources of the first SSB to the time domain resources of the second SSB;

[0347] a ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB;

[0348] a ratio of the code domain resources of the first SSB to the code domain resources of the second SSB;

[0349] The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

[0350] Optionally, the repeated transmission information of the TB includes at least one of the following:

[0351] TB supports or does not support repeated transmission of information;

[0352] Number of TB retransmissions.

[0353] Optionally, the TB transmission method includes at least one of the following:

[0354] Multiple TBs transmit multiple second SSBs through frequency division multiplexing;

[0355] Multiple TBs transmit multiple second SSBs through time division multiplexing;

[0356] Each second SSB or each group of second SSBs corresponds to a different TB.

[0357] Optionally, the device further comprises:

[0358] The first sending module is used to send indication information to the terminal, where the indication information is used to indicate relevant information of the TB.

[0359] Optionally, the second determining module is specifically configured to:

[0360] Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

[0361] Optionally, the device further comprises:

[0362] A second sending module is configured to send the power information of the first SSB to the terminal, where the power information of the first SSB is carried by the second information;

[0363] The second information includes at least one of the following:

[0364] Power information of broadcast signals;

[0365] Power information of synchronization signal;

[0366] Power information of the main synchronization signal;

[0367] Power information of the auxiliary synchronization signal;

[0368] Power information of the common reference signal;

[0369] Public power configuration information.

[0370] Optionally, the second determining module is specifically configured to perform at least one of the following:

[0371] Determining the power value according to the index of each repeatedly transmitted SSB;

[0372] Determining the power value according to the index group to which the index of each repeatedly transmitted SSB belongs;

[0373] Determining the power value according to the time unit in which each repeatedly transmitted SSB is located;

[0374] The power value of the repeatedly transmitted SSB is determined according to the power value of the non-repeatedly transmitted SSB.

[0375] Optionally, the second determining module is specifically configured to perform at least one of the following:

[0376] Determine the power offset value of each repeatedly transmitted SSB separately;

[0377] Determining the power offset value according to the index of each repeatedly transmitted SSB;

[0378] Determining the power offset value according to the index group to which the index of each repeatedly transmitted SSB belongs;

[0379] Determining the power offset value according to the time unit in which each repeatedly transmitted SSB is located;

[0380] Determining an offset value of the power of the repeatedly transmitted SSB relative to the target SSB;

[0381] Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal contained in the target SSB index;

[0382] Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal included in the target SSB index group;

[0383] Determine the offset value of the repeatedly transmitted SSB relative to the reference power.

[0384] Optionally, the device further comprises:

[0385] The third sending module is configured to send a first signaling to the terminal, where the first signaling is used to indicate at least one of the following:

[0386] Resource information of the first SSB, where the resource information is used to indicate transmission resources of the first SSB;

[0387] Validation information of the first SSB, where the validation information is used to indicate whether the first SSB is valid;

[0388] The sending information of the first SSB is used to indicate whether the first SSB is sent.

[0389] The embodiments of the present application provide a method for determining the TB information or power of the extended SSB, which can support SSB resource expansion, thereby improving the performance of related downlink transmission, and is beneficial to the transmission performance in scenarios such as random access, cell switching, and cell free.

[0390] The synchronization signal block (SSB) information determination device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0391] The information determination device of the synchronization signal block SSB provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 4 to 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0392] As shown in Figure 8, an embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802. The memory 802 stores a program or instruction that can be run on the processor 801. For example, when the communication device 800 is a terminal, the program or instruction is executed by the processor 801 to implement the various steps of the embodiment of the method for determining information of the synchronization signal block SSB, and can achieve the same technical effect. When the communication device 800 is a network-side device, the program or instruction is executed by the processor 801 to implement the various steps of the embodiment of the method for determining information of the synchronization signal block SSB, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0393] The present application also provides a terminal comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG4 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG9 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0394] The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909 and at least some of the components of the processor 910.

[0395] Those skilled in the art will appreciate that the terminal 900 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 910 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG9 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0396] It should be understood that in an embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042, and the graphics processor 9041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes a touch panel 9071 and at least one of other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0397] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 901 may transmit the data to the processor 910 for processing. Furthermore, the RF unit 901 may send uplink data to the network-side device. Typically, the RF unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0398] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 909 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a 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 RAM bus random access memory (DRRAM). The memory 909 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0399] Processor 910 may include one or more processing units. Optionally, processor 910 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 910.

[0400] Among them, the processor 910 is used to determine at least one of the relevant information of the transmission block TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

[0401] Optionally, the first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following:

[0402] The time domain resource of the first SSB is greater than the time domain resource of the second SSB;

[0403] The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB;

[0404] The code domain resource of the first SSB is greater than the code domain resource of the second SSB;

[0405] The first SSB includes a plurality of repeatedly transmitted second SSBs.

[0406] Optionally, the TB-related information includes at least one of the following:

[0407] TB size;

[0408] TB of repeated transmission information;

[0409] Quantification factor of TB;

[0410] Modulation order of TB;

[0411] TB transmission method.

[0412] Optionally, the processor 910 is specifically configured to perform at least one of the following:

[0413] Determine relevant information of the TB of the first SSB according to the instruction information of the network side device;

[0414] Determine relevant information of the TB of the first SSB based on the first information.

[0415] Optionally, the first information includes at least one of the following:

[0416] the index of the first SSB;

[0417] The frequency domain position of the first SSB;

[0418] a subcarrier spacing of the first SSB;

[0419] a transmission timing of the first SSB;

[0420] a transmission window of the first SSB;

[0421] a ratio of the time domain resources of the first SSB to the time domain resources of the second SSB;

[0422] a ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB;

[0423] a ratio of the code domain resources of the first SSB to the code domain resources of the second SSB;

[0424] The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

[0425] Optionally, the repeated transmission information of the TB includes at least one of the following:

[0426] TB supports or does not support repeated transmission of information;

[0427] Number of TB retransmissions.

[0428] Optionally, the TB transmission method includes at least one of the following:

[0429] Multiple TBs transmit multiple second SSBs through frequency division multiplexing;

[0430] Multiple TBs transmit multiple second SSBs through time division multiplexing;

[0431] Each second SSB or each group of second SSBs corresponds to a different TB.

[0432] Optionally, the processor 910 is specifically configured to:

[0433] Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

[0434] Optionally, the power information of the first SSB is carried by the second information;

[0435] The second information includes at least one of the following:

[0436] Power information of broadcast signals;

[0437] Power information of synchronization signal;

[0438] Power information of the main synchronization signal;

[0439] Power information of the auxiliary synchronization signal;

[0440] Power information of the common reference signal;

[0441] Public power configuration information.

[0442] Optionally, the processor 910 is specifically configured to perform at least one of the following:

[0443] Determining the power value according to the index of each repeatedly transmitted SSB;

[0444] Determining the power value according to the index group to which the index of each repeatedly transmitted SSB belongs;

[0445] Determining the power value according to the time unit in which each repeatedly transmitted SSB is located;

[0446] The power value of the repeatedly transmitted SSB is determined according to the power value of the non-repeatedly transmitted SSB.

[0447] Optionally, the processor 910 is specifically configured to perform at least one of the following:

[0448] Determine the power offset value of each repeatedly transmitted SSB separately;

[0449] Determining the power offset value according to the index of each repeatedly transmitted SSB;

[0450] Determining the power offset value according to the index group to which the index of each repeatedly transmitted SSB belongs;

[0451] Determining the power offset value according to the time unit in which each repeatedly transmitted SSB is located;

[0452] Determining an offset value of the power of the repeatedly transmitted SSB relative to the target SSB;

[0453] Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal contained in the target SSB index;

[0454] Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal included in the target SSB index group;

[0455] Determine the offset value of the repeatedly transmitted SSB relative to the reference power.

[0456] Optionally, the processor 910 is further configured to:

[0457] The terminal receives first signaling sent by a network-side device, where the first signaling is used to indicate at least one of the following:

[0458] Resource information of the first SSB, where the resource information is used to indicate transmission resources of the first SSB;

[0459] Validation information of the first SSB, where the validation information is used to indicate whether the first SSB is valid;

[0460] The sending information of the first SSB is used to indicate whether the first SSB is sent.

[0461] An embodiment of the present application provides a method for determining the TB information or power of the extended SSB, which can support SSB resource expansion, thereby improving the performance of related downlink transmission, and is beneficial to the transmission performance in scenarios such as random access, cell switching, and cell free.

[0462] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the information determination method of the synchronization signal block SSB in the method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0463] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG5 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0464] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 10, network-side device 1000 includes an antenna 101, a radio frequency device 102, a baseband device 103, a processor 104, and a memory 105. Antenna 101 is connected to radio frequency device 102. In the uplink direction, radio frequency device 102 receives information via antenna 101 and sends the received information to baseband device 103 for processing. In the downlink direction, baseband device 103 processes the information to be transmitted and sends it to radio frequency device 102. Radio frequency device 102 processes the received information and then sends it through antenna 101.

[0465] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 103 , which includes a baseband processor.

[0466] The baseband device 103 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 10, one of which is, for example, a baseband processor, which is connected to the memory 105 through a bus interface to call the program in the memory 105 and execute the network side device operations shown in the above method embodiment.

[0467] The network side device may further include a network interface 106, which is, for example, a Common Public Radio Interface (CPRI).

[0468] Specifically, the network side device 1000 of an embodiment of the present invention also includes: instructions or programs stored in the memory 105 and executable on the processor 104. The processor 104 calls the instructions or programs in the memory 105 to execute the methods executed by the modules shown in FIG7 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0469] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned embodiment of the method for determining the information of the synchronization signal block SSB are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0470] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0471] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned embodiment of the method for determining the information of the synchronization signal block SSB, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0472] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0473] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned embodiment of the method for determining the information of the synchronization signal block SSB, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0474] An embodiment of the present application also provides a computer program product, including computer instructions, which, when executed by a processor, implement the steps of a method for determining information of a synchronization signal block (SSB).

[0475] An embodiment of the present application also provides a wireless communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the information determination method of the synchronization signal block SSB as described above, and the network side device can be used to execute the steps of the information determination method of the synchronization signal block SSB as described above.

[0476] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0477] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0478] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for determining information of a synchronization signal block (SSB), comprising: The terminal determines at least one of the relevant information of the transmission block TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

2. The method according to claim 1, wherein The first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following: The time domain resource of the first SSB is greater than the time domain resource of the second SSB; The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB; The code domain resource of the first SSB is greater than the code domain resource of the second SSB; The first SSB includes a plurality of repeatedly transmitted second SSBs.

3. The method according to claim 1, wherein The relevant information about TB shall include at least one of the following: TB size; TB of repeated transmission information; Quantification factor of TB; Modulation order of TB; TB transmission method.

4. The method according to claim 1 or 3, wherein Determine relevant information about the TB of the first SSB, including at least one of the following: Determine relevant information of the TB of the first SSB according to the instruction information of the network side device; Determine relevant information of the TB of the first SSB based on the first information.

5. The method according to claim 4, wherein The first information includes at least one of the following: the index of the first SSB; The frequency domain position of the first SSB; a subcarrier spacing of the first SSB; a transmission timing of the first SSB; a transmission window of the first SSB; a ratio of the time domain resources of the first SSB to the time domain resources of the second SSB; a ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB; a ratio of the code domain resources of the first SSB to the code domain resources of the second SSB; The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

6. The method according to claim 3, wherein: The repeated transmission information of the TB includes at least one of the following: TB supports or does not support repeated transmission of information; Number of TB retransmissions.

7. The method according to claim 3, wherein: The TB transmission method includes at least one of the following: Multiple TBs transmit multiple second SSBs through frequency division multiplexing; Multiple TBs transmit multiple second SSBs through time division multiplexing; Each second SSB or each group of second SSBs corresponds to a different TB.

8. The method according to claim 1, wherein The determining the power information of the first SSB includes: Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

9. The method according to claim 1 or 8, wherein The power information of the first SSB is carried by the second information; The second information includes at least one of the following: Power information of broadcast signals; Power information of synchronization signal; Power information of the main synchronization signal; Power information of the auxiliary synchronization signal; Power information of the common reference signal; Public power configuration information.

10. The method according to claim 8, wherein The determining power information of each repeatedly transmitted SSB in the first SSB includes at least one of the following: Determining the power value according to the index of each repeatedly transmitted SSB; Determining the power value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power value according to the time unit in which each repeatedly transmitted SSB is located; The power value of the repeatedly transmitted SSB is determined according to the power value of the non-repeatedly transmitted SSB.

11. The method according to claim 8, wherein The determining power information of each repeatedly transmitted SSB in the first SSB includes at least one of the following: Determine the power offset value of each repeatedly transmitted SSB separately; Determining the power offset value according to the index of each repeatedly transmitted SSB; Determining the power offset value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power offset value according to the time unit in which each repeatedly transmitted SSB is located; Determining an offset value of the power of the repeatedly transmitted SSB relative to the target SSB; Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal contained in the target SSB index; Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal included in the target SSB index group; Determine the offset value of the repeatedly transmitted SSB relative to the reference power.

12. The method according to claim 1, further comprising: The terminal receives first signaling sent by a network-side device, where the first signaling is used to indicate at least one of the following: Resource information of the first SSB, where the resource information is used to indicate transmission resources of the first SSB; Validation information of the first SSB, where the validation information is used to indicate whether the first SSB is valid; The sending information of the first SSB is used to indicate whether the first SSB is sent.

13. A method for determining information of a synchronization signal block (SSB), the method comprising: The network side device determines at least one of the relevant information of the TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

14. The method according to claim 13, wherein The first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following: The time domain resource of the first SSB is greater than the time domain resource of the second SSB; The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB; The code domain resource of the first SSB is greater than the code domain resource of the second SSB; The first SSB includes a plurality of repeatedly transmitted second SSBs.

15. The method according to claim 13, wherein The relevant information about TB shall include at least one of the following: TB size; TB of repeated transmission information; Quantification factor of TB; Modulation order of TB; TB transmission method.

16. The method according to claim 13 or 15, wherein: Determine the relevant information of the TB of the first SSB, including: Determine relevant information of the TB of the first SSB based on the first information.

17. The method according to claim 16, wherein The first information includes at least one of the following: the index of the first SSB; The frequency domain position of the first SSB; a subcarrier spacing of the first SSB; a transmission timing of the first SSB; a transmission window of the first SSB; a ratio of the time domain resources of the first SSB to the time domain resources of the second SSB; a ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB; a ratio of the code domain resources of the first SSB to the code domain resources of the second SSB; The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

18. The method according to claim 15, wherein The repeated transmission information of the TB includes at least one of the following: TB supports or does not support repeated transmission of information; Number of TB retransmissions.

19. The method according to claim 15, wherein The TB transmission method includes at least one of the following: Multiple TBs transmit multiple second SSBs through frequency division multiplexing; Multiple TBs transmit multiple second SSBs through time division multiplexing; Each second SSB or each group of second SSBs corresponds to a different TB.

20. The method according to claim 13 or 15, further comprising: Send indication information to the terminal, where the indication information is used to indicate relevant information of the TB.

21. The method according to claim 13, wherein The determining the power information of the first SSB includes: Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

22. The method according to claim 13 or 21, further comprising: Sending power information of the first SSB to the terminal, where the power information of the first SSB is carried by the second information; The second information includes at least one of the following: Power information of broadcast signals; Power information of synchronization signal; Power information of the main synchronization signal; Power information of the auxiliary synchronization signal; Power information of the common reference signal; Public power configuration information.

23. The method according to claim 21, wherein The determining power information of each repeatedly transmitted SSB in the first SSB includes at least one of the following: Determining the power value according to the index of each repeatedly transmitted SSB; Determining the power value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power value according to the time unit in which each repeatedly transmitted SSB is located; The power value of the repeatedly transmitted SSB is determined according to the power value of the non-repeatedly transmitted SSB.

24. The method according to claim 21, wherein The determining power information of each repeatedly transmitted SSB in the first SSB includes at least one of the following: Determine the power offset value of each repeatedly transmitted SSB separately; Determining the power offset value according to the index of each repeatedly transmitted SSB; Determining the power offset value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power offset value according to the time unit in which each repeatedly transmitted SSB is located; Determining an offset value of the power of the repeatedly transmitted SSB relative to the target SSB; Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal contained in the target SSB index; Determining an offset value of the power of the repeatedly transmitted SSB relative to the power of the signal included in the target SSB index group; Determine the offset value of the repeatedly transmitted SSB relative to the reference power.

25. The method according to claim 13, further comprising: The network-side device sends a first signaling to the terminal, where the first signaling is used to indicate at least one of the following: Resource information of the first SSB, where the resource information is used to indicate transmission resources of the first SSB; Validation information of the first SSB, where the validation information is used to indicate whether the first SSB is valid; The sending information of the first SSB is used to indicate whether the first SSB is sent.

26. A device for determining information of a synchronization signal block (SSB), comprising: The first determination module determines at least one of the relevant information of the transmission block TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

27. The device according to claim 26, wherein The first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following: The time domain resource of the first SSB is greater than the time domain resource of the second SSB; The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB; The code domain resource of the first SSB is greater than the code domain resource of the second SSB; The first SSB includes a plurality of repeatedly transmitted second SSBs.

28. The apparatus according to claim 26, wherein The relevant information about TB shall include at least one of the following: TB size; TB of repeated transmission information; Quantification factor of TB; Modulation order of TB; TB transmission method.

29. The device according to claim 26 or 28, wherein The first determining module is specifically configured to perform at least one of the following: Determine relevant information of the TB of the first SSB according to the instruction information of the network side device; Determine relevant information of the TB of the first SSB based on the first information.

30. The apparatus according to claim 29, wherein The first information includes at least one of the following: the index of the first SSB; The frequency domain position of the first SSB; a subcarrier spacing of the first SSB; a transmission timing of the first SSB; a transmission window of the first SSB; a ratio of the time domain resources of the first SSB to the time domain resources of the second SSB; a ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB; a ratio of the code domain resources of the first SSB to the code domain resources of the second SSB; The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

31. The apparatus according to claim 28, wherein The repeated transmission information of the TB includes at least one of the following: TB supports or does not support repeated transmission of information; Number of TB retransmissions.

32. The apparatus of claim 28, wherein: The TB transmission method includes at least one of the following: Multiple TBs transmit multiple second SSBs through frequency division multiplexing; Multiple TBs transmit multiple second SSBs through time division multiplexing; Each second SSB or each group of second SSBs corresponds to a different TB.

33. The apparatus of claim 26, wherein: The first determining module is specifically configured to: Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

34. The apparatus according to claim 26 or 33, wherein: The power information of the first SSB is carried by the second information; The second information includes at least one of the following: Power information of broadcast signals; Power information of synchronization signal; Power information of the main synchronization signal; Power information of the auxiliary synchronization signal; Power information of the common reference signal; Public power configuration information.

35. The apparatus of claim 33, wherein: The first determining module is specifically configured to perform at least one of the following: Determining the power value according to the index of each repeatedly transmitted SSB; Determining the power value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power value according to the time unit in which each repeatedly transmitted SSB is located; The power value of the repeatedly transmitted SSB is determined according to the power value of the non-repeatedly transmitted SSB.

36. The apparatus of claim 33, wherein: The first determining module is specifically configured to perform at least one of the following: Determine the power offset value of each repeatedly transmitted SSB separately; Determining the power offset value according to the index of each repeatedly transmitted SSB; Determining the power offset value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power offset value according to the time unit in which each repeatedly transmitted SSB is located; Determining an offset value of the power of the repeatedly transmitted SSB relative to the target SSB; Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal contained in the target SSB index; Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal included in the target SSB index group; Determine the offset value of the repeatedly transmitted SSB relative to the reference power.

37. The apparatus of claim 26, further comprising: A receiving module, configured to receive a first signaling sent by a network-side device, where the first signaling is used to indicate at least one of the following: Resource information of the first SSB, where the resource information is used to indicate transmission resources of the first SSB; Validation information of the first SSB, where the validation information is used to indicate whether the first SSB is valid; The sending information of the first SSB is used to indicate whether the first SSB is sent.

38. A device for determining information of a synchronization signal block (SSB), comprising: The second determination module is used to determine at least one of the relevant information of the TB of the first SSB and the power information of the first SSB, where the first SSB is an SSB extended based on the second SSB.

39. The apparatus according to claim 38, wherein The first SSB and the second SSB satisfy a first condition, where the first condition includes at least one of the following: The time domain resource of the first SSB is greater than the time domain resource of the second SSB; The frequency domain resources of the first SSB are greater than the frequency domain resources of the second SSB; The code domain resource of the first SSB is greater than the code domain resource of the second SSB; The first SSB includes a plurality of repeatedly transmitted second SSBs.

40. The apparatus of claim 38, wherein The relevant information about TB shall include at least one of the following: TB size; TB of repeated transmission information; Quantification factor of TB; Modulation order of TB; TB transmission method.

41. The apparatus according to claim 38 or 40, wherein The second determining module is specifically configured to: Determine relevant information of the TB of the first SSB based on the first information.

42. The apparatus according to claim 41, wherein The first information includes at least one of the following: the index of the first SSB; The frequency domain position of the first SSB; a subcarrier spacing of the first SSB; a transmission timing of the first SSB; a transmission window of the first SSB; a ratio of the time domain resources of the first SSB to the time domain resources of the second SSB; a ratio of the frequency domain resources of the first SSB to the frequency domain resources of the second SSB; a ratio of the code domain resources of the first SSB to the code domain resources of the second SSB; The proportional relationship between the time-frequency resources of the first SSB and the time-frequency resources of the second SSB.

43. The apparatus according to claim 40, wherein The repeated transmission information of the TB includes at least one of the following: TB supports or does not support repeated transmission of information; Number of TB retransmissions.

44. The apparatus of claim 40, wherein: The TB transmission method includes at least one of the following: Multiple TBs transmit multiple second SSBs through frequency division multiplexing; Multiple TBs transmit multiple second SSBs through time division multiplexing; Each second SSB or each group of second SSBs corresponds to a different TB.

45. The apparatus according to claim 38 or 40, further comprising: The first sending module is used to send indication information to the terminal, where the indication information is used to indicate relevant information of the TB.

46. ​​The apparatus of claim 38, wherein The second determining module is specifically configured to: Determine the power information of each repeatedly transmitted SSB in the first SSB, where the power information includes: a power value or a power offset value.

47. The apparatus according to claim 38 or 46, further comprising: A second sending module is configured to send the power information of the first SSB to the terminal, where the power information of the first SSB is carried by the second information; The second information includes at least one of the following: Power information of broadcast signals; Power information of synchronization signal; Power information of the main synchronization signal; Power information of the auxiliary synchronization signal; Power information of the common reference signal; Public power configuration information.

48. The apparatus of claim 46, wherein The second determining module is specifically configured to perform at least one of the following: Determining the power value according to the index of each repeatedly transmitted SSB; Determining the power value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power value according to the time unit in which each repeatedly transmitted SSB is located; The power value of the repeatedly transmitted SSB is determined according to the power value of the non-repeatedly transmitted SSB.

49. The apparatus of claim 46, wherein The second determining module is specifically configured to perform at least one of the following: Determine the power offset value of each repeatedly transmitted SSB separately; Determining the power offset value according to the index of each repeatedly transmitted SSB; Determining the power offset value according to the index group to which the index of each repeatedly transmitted SSB belongs; Determining the power offset value according to the time unit in which each repeatedly transmitted SSB is located; Determining an offset value of the power of the repeatedly transmitted SSB relative to the target SSB; Determining an offset value of the power of the repeatedly transmitted SSB relative to the signal contained in the target SSB index; Determining an offset value of the power of the repeatedly transmitted SSB relative to the power of the signal included in the target SSB index group; Determine the offset value of the repeatedly transmitted SSB relative to the reference power.

50. The apparatus of claim 38, further comprising: The third sending module is configured to send a first signaling to the terminal, where the first signaling is used to indicate at least one of the following: Resource information of the first SSB, where the resource information is used to indicate transmission resources of the first SSB; Validation information of the first SSB, where the validation information is used to indicate whether the first SSB is valid; The sending information of the first SSB is used to indicate whether the first SSB is sent.

51. A terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for determining the information of the synchronization signal block (SSB) as described in any one of claims 1 to 12 are implemented.

52. A network side device, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for determining the information of the synchronization signal block (SSB) as described in any one of claims 13 to 25 are implemented.

53. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the method for determining the information of the synchronization signal block SSB as described in any one of claims 1 to 12, or implements the steps of the method for determining the information of the synchronization signal block SSB as described in any one of claims 13 to 25.

54. A computer program product, comprising computer instructions, which, when executed by a processor, implement the steps of the method for determining the information of the synchronization signal block SSB as described in any one of claims 1 to 12, or implement the steps of the method for determining the information of the synchronization signal block SSB as described in any one of claims 13 to 25.

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