Synchronization signal transmission method and apparatus, and terminal and network side device

Abstract

The present application belongs to the technical field of communications. Disclosed are a synchronization signal transmission method and apparatus, and a terminal and a network side device. The synchronization signal transmission method in the embodiments of the present application comprises: a terminal detecting a first synchronization signal on the basis of a first mode to obtain first synchronization information; on the basis of the first synchronization information, the terminal determining second synchronization information associated with a second synchronization signal; and the terminal detecting the second synchronization signal on the basis of the second synchronization information and a second mode, wherein peak power consumption corresponding to the first mode is less than peak power consumption corresponding to the second mode.

Description

Synchronous signal transmission method, device, terminal and network side equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 19, 2024, with application number 202410083961.7 and application name “Synchronization signal transmission method, device, terminal and network side equipment”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of communication technology, and specifically relates to a synchronization signal transmission method, apparatus, terminal and network-side equipment. Background Art

[0003] In a communication system, a terminal usually needs to perform blind detection of synchronization signals (such as synchronization signal blocks (Synchronization Signal and PBCH Block, SSB)) during the initial search for a cell to achieve synchronization with the network-side equipment to assist the terminal in accessing the network. Currently, the default synchronization signal (such as synchronization signal block (Synchronization Signal and PBCH Block, SSB)) period during the initial search of a cell is 20 milliseconds. Due to the short transmission period, network energy saving cannot be achieved well. By directly increasing the transmission period of SSB, network power consumption and load overhead can be effectively reduced, but at the same time, the complexity of the initial search and detection of SSB by the terminal cell will be increased. Therefore, it is necessary to consider a design that can both reduce network power consumption and load overhead and reduce the complexity of SSB detection for the initial search of the terminal cell. Summary of the Invention

[0004] The embodiments of the present application provide a synchronization signal transmission method, apparatus, terminal, and network-side equipment, which can solve the problem of high complexity in synchronization signal detection.

[0005] In a first aspect, a synchronization signal transmission method is provided, comprising:

[0006] The terminal detects the first synchronization signal based on the first mode and obtains first synchronization information;

[0007] The terminal determines, based on the first synchronization information, second synchronization information associated with a second synchronization signal;

[0008] The terminal detects the second synchronization signal based on the second synchronization information and the second pattern;

[0009] The peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode.

[0010] In a second aspect, a synchronization signal transmission method is provided, comprising:

[0011] The network side device sends a first synchronization signal and a second synchronization signal;

[0012] The first synchronization signal carries first synchronization information, and the first synchronization information is used to determine second synchronization information for detecting the second synchronization signal.

[0013] In a third aspect, a synchronization signal transmission device is provided, comprising:

[0014] a detection module, configured to detect a first synchronization signal based on a first pattern to obtain first synchronization information;

[0015] a determining module, configured to determine second synchronization information associated with a second synchronization signal based on the first synchronization information;

[0016] The detection module is further configured to detect the second synchronization signal based on the second synchronization information and the second pattern;

[0017] The peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode.

[0018] In a fourth aspect, a synchronization signal transmission device is provided, comprising:

[0019] A sending module, configured to send a first synchronization signal and a second synchronization signal;

[0020] The first synchronization signal carries first synchronization information, and the first synchronization information is used to determine second synchronization information for detecting the second synchronization signal.

[0021] 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.

[0022] According to a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is configured to detect a first synchronization signal based on a first pattern to obtain first synchronization information;

[0023] The processor is configured to determine second synchronization information associated with a second synchronization signal based on the first synchronization information;

[0024] The communication interface is further configured to detect the second synchronization signal based on the second synchronization information and the second pattern;

[0025] The peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode.

[0026] 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.

[0027] In an eighth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send a first synchronization signal and a second synchronization signal;

[0028] The first synchronization signal carries first synchronization information, and the first synchronization information is used to determine second synchronization information for detecting the second synchronization signal.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0033] In an embodiment of the present application, a terminal detects a first synchronization signal based on a first pattern to obtain first synchronization information; the terminal determines second synchronization information associated with the second synchronization signal based on the first synchronization information; and the terminal detects the second synchronization signal based on the second synchronization information and a second pattern; wherein the peak power consumption corresponding to the first pattern is less than the peak power consumption corresponding to the second pattern. Thus, since the second synchronization information is determined after detecting the first synchronization signal, the second synchronization information can be used to detect the second synchronization signal, thereby reducing the complexity of the terminal's blind detection. Therefore, the embodiment of the present application reduces the complexity of synchronization signal detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0035] FIG2 is a schematic diagram of a flow chart of a synchronization signal transmission method provided in an embodiment of the present application;

[0036] FIG3 is an example diagram of a transmission scenario in a synchronization signal transmission method provided in an embodiment of the present application;

[0037] FIG4 is an example diagram of a transmission scenario in a synchronization signal transmission method provided in an embodiment of the present application;

[0038] FIG5 is a schematic flow chart of another synchronization signal transmission method provided in an embodiment of the present application;

[0039] FIG6 is a schematic structural diagram of a synchronization signal transmission device provided in an embodiment of the present application;

[0040] FIG7 is a schematic structural diagram of another synchronization signal transmission device provided in an embodiment of the present application;

[0041] FIG8 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0042] FIG9 is a schematic structural diagram of a terminal provided in an embodiment of the present application;

[0043] FIG10 is a schematic structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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 (AP) 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 relevant 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.

[0048] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0049] For ease of understanding, some of the contents involved in the embodiments of this application are described below:

[0050] 1. Low Power Wake Up Receiver (LP WUR)

[0051] The basic working principle of LP WUR is that the receiving end includes a first module and a second module. The first module is a main communication module, which is used to receive the communication data transmitted by the sending end and send the communication data. The second module is a low-power module, which is used to receive the low-power wake-up signal (Low Power Wake Up Signal, LP-WUS) and low-power synchronization signal (Low Power Synchronization Signal, LP-SS) sent by the sending end. The low-power wake-up signal is used to wake up the main communication module of the receiving end, and the low-power synchronization signal is used to provide time reference information and other information for receiving the low-power wake-up signal, for example, for performing radio resource management (Radio Resource Management, RRM) measurement of the serving cell. It can also provide wake-up link management, such as determining whether to activate or deactivate LP-WUR based on the measurement results and shutting down the main receiver (Main Receiver, MR). Among them, when the first module is not awakened by the second module, it is always in the closed state and does not send or receive data. When downlink data arrives, the second module detects the wake-up signal sent by the sending end, and the wake-up signal contains the terminal information. Then the second module triggers the first module to switch from the closed state to the working state to receive and send data. The second module can be turned on continuously or discontinuously, and can receive a low-power wake-up signal and a low-power synchronization signal when the second module is turned on.

[0052] 2. Low power wake-up signal.

[0053] Low-power wake-up signals are usually some relatively simple on-off keying (OOK) signals, so that the receiver can obtain the wake-up notification through simple energy detection and subsequent possible sequence detection and recognition processes.

[0054] Since Orthogonal Frequency Division Multiplex (OFDM) is commonly used in NR systems, OOK signals can be generated using OFDM signal generation methods. For example, the transmission or non-transmission of an OFDM-modulated sequence represents the ON / OFF state in the time domain. OOK signals can be received using receivers with lower power consumption.

[0055] Furthermore, the OFDM modulated sequence in the modulation ON can further carry information through different sequences, for example, two sequences represent 0 and 1 information respectively, or four sequences represent 00, 01, 10, and 11 information respectively.

[0056] Optionally, in a waveform or modulation mode of on-off keying OOK superimposed on orthogonal frequency division multiplexing OFDM (OOK with overlaid OFDM sequence), part of the information is modulated by OOK, and the other part of the information is carried by an ON-level OFDM sequence.

[0057] 3. NR SSB.

[0058] In the NR system, SSB usually includes the Primary Synchronisation Signal (PSS), the Secondary Synchronisation Signal (SSS), the Physical Broadcast Channel (PBCH) and the Physical Broadcast Channel Demodulation Reference Signal (DMRS).

[0059] Among them, the main functions of PSS and SSS are to achieve symbol-level synchronization and complete the Physical-Layer Cell Identity (PCI). The PBCH contains the cell's Master Information Block (MIB) and some other information. The PBCH-DMRS serves as the PBCH demodulation reference signal and contains some SSB index information (the lower three bits).

[0060] The synchronization signal transmission method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0061] 2 , an embodiment of the present application provides a synchronization signal transmission method. As shown in FIG2 , the synchronization signal transmission method includes:

[0062] Step 201: The terminal detects a first synchronization signal based on a first mode to obtain first synchronization information;

[0063] Step 202: The terminal determines second synchronization information associated with a second synchronization signal based on the first synchronization information;

[0064] Step 203: The terminal detects the second synchronization signal based on the second synchronization information and the second mode;

[0065] The peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode.

[0066] In an embodiment of the present application, the above-mentioned first synchronization signal can be understood as a low-power synchronization signal, and the above-mentioned second synchronization signal can be understood as a synchronization signal used to assist the terminal in accessing the network, such as SSB.

[0067] Optionally, the peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode, which can be understood as the terminal can detect the first synchronization signal through lower power consumption and detect the second synchronization signal through higher power consumption, that is, the complexity of the first synchronization signal is lower than the complexity of the second synchronization signal, wherein, for the first synchronization signal, the terminal adopts a blind detection method for detection, and for the second synchronization signal, the terminal performs detection based on the second synchronization information, thereby reducing the complexity of the second synchronization signal detection.

[0068] Optionally, in some embodiments, the second synchronization signal may be understood as a non-low power synchronization signal, or a non-blind detection synchronization signal.

[0069] It should be noted that, in the embodiment of the present application, the above-mentioned first mode can be understood or replaced by the first power consumption level, and the above-mentioned second mode can be understood or replaced by the second power consumption level.

[0070] In an embodiment of the present application, the terminal detects the first synchronization signal based on the first mode to obtain the first synchronization information; the terminal determines the second synchronization information associated with the second synchronization signal based on the first synchronization information; the terminal detects the second synchronization signal based on the second synchronization information and the second mode; wherein, the peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode. In this way, since the second synchronization information is determined after detecting the first synchronization signal, the second synchronization signal can be detected using the second synchronization information, thereby reducing the power consumption and complexity of the terminal's blind detection, and the terminal's hardware, such as the buffer requirement. Therefore, the embodiment of the present application reduces the power consumption and complexity of the terminal's detection of the synchronization signal.

[0071] Optionally, in some embodiments, the first synchronization signal adopts any one of the following waveforms or modulation methods: Amplitude Shift Keying (ASK); Frequency Shift Keying (FSK); On-Off Keying OOK superimposed Orthogonal Frequency Division Multiplexing OFDM; OFDM.

[0072] In an embodiment of the present application, the waveform of the first synchronization signal is modulated using the above modulation method, thereby reducing the power consumption and complexity of the terminal's blind detection of the first synchronization signal.

[0073] Optionally, in some embodiments, the first synchronization information is carried in any of the following ways:

[0074] at least one common sequence;

[0075] A portion of the first synchronization information is carried by at least one common sequence, and another portion of the first synchronization information is carried by at least one information bearing block, wherein the at least one information bearing block includes a cyclic redundancy check (CRC).

[0076] Optionally, in some embodiments, the first synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the first synchronization signal satisfies at least one of the following:

[0077] The transmission mode of the multiple time domain transmission positions in each time domain transmission position set is the first transmission mode;

[0078] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period is the second transmission mode;

[0079] The first transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0080] The second transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0081] It should be understood that for the transmission method with the same transmission content and the use of the same beam transmission, the same content is sent in the same direction, thereby increasing the reliability of the transmission; for the transmission method with the same transmission content and the use of beam scanning transmission, the same content is transmitted in different directions, thereby increasing the coverage of the cell; for the transmission method with different transmission content and the use of the same beam transmission, more content can be transmitted in one time domain unit, thereby improving the transmission efficiency or rate.

[0082] Optionally, in some embodiments, the second synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the second synchronization signal satisfies at least one of the following:

[0083] The transmission mode of the multiple time domain transmission positions within each time domain transmission position set is the third transmission mode;

[0084] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission cycle is the fourth transmission mode;

[0085] The third transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0086] The fourth transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0087] In an embodiment of the present application, the transmission mode of multiple time domain transmission positions within each time domain transmission position set can be understood as the transmission mode of different time domain transmission positions within each time domain transmission position set; the transmission mode of multiple time domain transmission positions corresponding to the same transmission position within different time domain transmission position sets within each transmission period can be understood as: the transmission mode of different time domain transmission positions corresponding to the same transmission position within different time domain transmission position sets within each transmission period.

[0088] Optionally, in some embodiments, the second synchronization information includes at least one of the following:

[0089] Transmit configuration information;

[0090] Frequency domain information;

[0091] Time domain information.

[0092] Optionally, in some embodiments, the transmission configuration information includes at least one of the following:

[0093] The number of time domain transmission position sets contained in a transmission cycle;

[0094] The number of time domain transmission positions contained in each time domain transmission position set;

[0095] a transmission method of the multiple time-domain transmission positions of each time-domain transmission position set;

[0096] A transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission cycle.

[0097] In the embodiments of the present application, the above-mentioned transmission mode can be understood or replaced by a transmission method or a transmission scheme.

[0098] Optionally, in some embodiments, the first synchronization information includes at least one of the following:

[0099] an index corresponding to a set of time domain transmission positions included in one transmission period of the second synchronization signal;

[0100] an index corresponding to the number of time domain transmission positions included in each time domain transmission position set of the second synchronization signal;

[0101] an index corresponding to a transmission mode of multiple time domain transmission positions of each time domain transmission position set of the second synchronization signal;

[0102] An index corresponding to a transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period of the second synchronization signal.

[0103] In an embodiment of the present application, at least one of the index set corresponding to the time domain transmission position set, the index set corresponding to the number of time domain transmission positions, the index set corresponding to the transmission mode of multiple time domain transmission positions in each time domain transmission position set, and the index set corresponding to the transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets in each transmission period can be agreed upon by protocol or configured by network side equipment, and no further limitation is made here.

[0104] Optionally, in some embodiments, the frequency domain information includes at least one of the following: frequency point information and bandwidth information.

[0105] Optionally, in some embodiments, the terminal determines, based on the first synchronization information, that the second synchronization information associated with the second synchronization signal includes any one of the following:

[0106] In a case where a frequency point of the first frequency point group is uniquely associated with a frequency point of the second frequency point group, the terminal determines the frequency point information based on an index of a frequency point of the second frequency point group included in the first synchronization information;

[0107] In a case where a frequency point of the first frequency point group is uniquely associated with a frequency point of the second frequency point group, the terminal determines the frequency point information based on a frequency point where the first synchronization signal corresponding to the first synchronization information is located;

[0108] In a case where a frequency point of the first frequency point group is uniquely associated with at least two frequency points of the second frequency point group, the terminal determines the frequency point information based on a frequency point index set or a frequency point index set identifier of the second frequency point group included in the first synchronization information and an index of a frequency point in the frequency point index set;

[0109] In a case where a frequency point of the first frequency point group is uniquely associated with at least two frequency points of the second frequency point group, the terminal determines the frequency point information based on an index of a frequency point in a frequency point index set of the second frequency point group included in the first synchronization information;

[0110] The first frequency group is used to transmit the first synchronization signal, and the second frequency group is used to transmit the second synchronization signal.

[0111] In an embodiment of the present application, the above-mentioned first frequency point group includes at least one frequency point, and the above-mentioned second frequency point group includes at least one frequency point, wherein the frequency points in the first frequency point group and the frequency points in the second frequency point group may be the same or different, for example, they may be partially the same, or completely the same, or they may be partially different, or completely different.

[0112] A frequency point in the first frequency point group is uniquely associated with a frequency point in the second frequency point group. This can be understood as follows: the number of frequencies included in the first frequency point group is the same as the number of frequencies included in the second frequency point group, and the frequencies in the first frequency point group correspond one-to-one with the frequencies in the second frequency point group. Specifically, the association between the first frequency point group and the second frequency point group can be determined by a protocol agreement or configured by network-side devices.

[0113] A frequency point in a first frequency point group is uniquely associated with at least two frequency points in a second frequency point group. This can be understood as follows: the number of frequency points included in the first frequency point group is less than the number of frequency points included in the second frequency point group, and each frequency point in the first frequency point group (partial or entire set of frequency points) is associated with at least two frequency points in the second frequency point group, wherein different frequency points in the first frequency point group do not overlap with associated frequency points in the second frequency point group. Specifically, the association between the first frequency point group and the second frequency point group may be determined by a protocol agreement or configured by network-side devices.

[0114] It should be noted that, the terminal determining the frequency information based on the frequency of the first synchronization signal corresponding to the first synchronization information can be understood as: the terminal determining the frequency information of the second synchronization signal based on the frequency of the detected first synchronization signal.

[0115] Optionally, in some embodiments, the terminal determining, based on the first synchronization information, second synchronization information associated with the second synchronization signal includes:

[0116] The terminal determines the bandwidth information based on a first index included in the first synchronization information;

[0117] The first index is used to indicate at least one bandwidth information in the bandwidth information set of the second synchronization signal.

[0118] In an embodiment of the present application, the above-mentioned first index may include one or more index values ​​for indicating bandwidth information; or the first index includes an index value for indicating bandwidth information, and one or more first indexes are carried in the first synchronization information.

[0119] Optionally, the bandwidth information set of the second synchronization signal may be agreed upon by a protocol or configured by a network-side device, which is not further limited herein.

[0120] Optionally, in some embodiments, the time domain information includes at least one of the following:

[0121] first time domain location information, the first time domain location information including at least one of starting time domain location information and ending time domain location information;

[0122] Monitor time window position information;

[0123] Cycle information.

[0124] Optionally, in some embodiments, the terminal determines, based on the first synchronization information, that the second synchronization information associated with the second synchronization signal includes at least one of the following:

[0125] The terminal determines the first time domain location information based on first time offset information included in the first synchronization information, where the first time offset information includes an offset value between the second time domain location information and the first time domain location information;

[0126] The terminal determines the first time domain location information based on second time domain location information and second time offset information, where the second time offset information is preconfigured by a protocol agreement or a network-side device, and the second time offset information includes an offset value between the second time domain location information and the first time domain location information;

[0127] The second time domain position information includes at least one of a starting time domain position and an ending time domain position of the first synchronization signal.

[0128] Optionally, in some embodiments, the above-mentioned first time domain position information may correspond to the second time domain position information, for example, the first time domain position information and the second time domain position information both include starting time domain position information, or the first time domain position information and the second time domain position information both include ending time domain position information, or the first time domain position information and the second time domain position information both include starting time domain position information and ending time domain position information.

[0129] Optionally, the first time offset information includes at least one of the following:

[0130] an offset value between a starting time domain position of the first synchronization signal and a starting time domain position of the second synchronization signal;

[0131] an offset value between an end domain position of the first synchronization signal and an end domain position of the second synchronization signal;

[0132] An offset value between a start time domain position of the first synchronization signal and an end time domain position of the second synchronization signal;

[0133] The offset value between the end time domain position of the first synchronization signal and the start time domain position of the second synchronization signal.

[0134] Optionally, the understanding of the above-mentioned second time offset information is consistent with the understanding of the first time offset information. The difference between the two is that the first time offset information is carried by the first synchronization information, and the second time offset information is agreed by the protocol or pre-configured by the network side device.

[0135] Optionally, in some embodiments, the terminal determines, based on the first synchronization information, that the second synchronization information associated with the second synchronization signal includes any one of the following:

[0136] The terminal determines the listening time window position information based on the third time offset information and the first listening window length;

[0137] The terminal determines the listening time window position information based on the fourth time offset information and the second listening window length;

[0138] In which, the third time offset information is included in the first synchronization information, and the third time offset information includes the offset value of the second time domain position information and the starting position of the time domain listening window of the second synchronization signal, and the first listening window length is agreed upon by the protocol or pre-configured by the network side device or included in the first synchronization information; the fourth time offset information is agreed upon by the protocol or pre-configured by the network side device, and the fourth time offset information includes the offset value of the second time domain position information and the starting position of the time domain listening window of the second synchronization signal, and the second listening window length is included in the first synchronization information.

[0139] Optionally, in some embodiments, the terminal determines, based on the first synchronization information, that the second synchronization information associated with the second synchronization signal includes any one of the following:

[0140] The terminal determines the cycle information based on a second index, where the second index is used to indicate at least one cycle length in a cycle length set;

[0141] The terminal determines the period information based on a period length of the first synchronization signal corresponding to the first synchronization information.

[0142] In the embodiment of the present application, determining the period information can be understood as determining the period length of the second synchronization signal.

[0143] Optionally, the above-mentioned cycle length set can be understood as a cycle length set of the second synchronization signal, which can be specifically agreed upon by a protocol or pre-configured by a network-side device.

[0144] In some embodiments, the second index may include one or more index values, each index value being used to indicate a cycle length in a cycle length set of the second synchronization signal. In some embodiments, the first synchronization information may include multiple second indexes, each second index being used to indicate a cycle length in a cycle length set of the second synchronization signal.

[0145] Optionally, in some embodiments, when the terminal determines the period information based on the period length of the first synchronization signal corresponding to the first synchronization information, the relationship between the period length of the second synchronization signal and the period length of the first synchronization signal can be agreed upon by protocol or preconfigured by a network-side device. For example, the period length of the second synchronization signal is the same as the period length of the first synchronization signal, or the period length of the second synchronization signal is an integer multiple of the period length of the first synchronization signal. In this way, the terminal can determine the period length of the second synchronization signal by detecting the period length of the first synchronization signal.

[0146] Optionally, the terminal may determine the cycle length of the first synchronization signal by detecting the cycle length of the first synchronization signal, or by protocol agreement or network-side device pre-configuration.

[0147] Optionally, in some embodiments, the first configuration information of the first synchronization signal includes at least one of the following: a set of candidate frequencies of the first frequency group; frequency domain bandwidth; time domain period; signal waveform; sequence form; information block size; a method of carrying the first synchronization information; and a transmission method.

[0148] Optionally, in some embodiments, the second configuration information of the second synchronization signal includes at least one of the following: a set of candidate frequencies of the second frequency group; frequency domain bandwidth; time domain length; time domain period; signal waveform; sequence form; information block size; and transmission mode.

[0149] Optionally, in some embodiments, the first synchronization signal is associated with the second synchronization signal, and the association relationship between the first synchronization signal and the second synchronization signal includes at least one of the following:

[0150] an association relationship between a first frequency group and a second frequency group, the first frequency group being used to transmit the first synchronization signal, and the second frequency group being used to transmit the second synchronization signal;

[0151] an association relationship between the frequency of the first synchronization signal and the frequency of the second synchronization signal;

[0152] a correlation between the frequency bandwidth of the first synchronization signal and the frequency bandwidth of the second synchronization signal;

[0153] an association between a transmission mode of the first synchronization signal and a transmission mode of the second synchronization signal;

[0154] Time offset information between the first synchronization signal and the second synchronization signal.

[0155] The first synchronization signal and the second synchronization signal are time division multiplexed (TDM) or frequency division multiplexed (FDM).

[0156] In order to better understand the present application, some examples are provided below for illustration.

[0157] In the first embodiment, a first synchronization signal and a second synchronization signal are transmitted periodically; and transmission configuration information of the second synchronization signal is determined based on the first synchronization information.

[0158] In one example, the first synchronization signal adopts any one of the following waveforms or modulation methods: on-off keying OOK superimposed orthogonal frequency division multiplexing OFDM; OFDM.

[0159] In this way, the terminal can use a lower-power receiver, such as an envelope detection receiver, to detect amplitude shift keying including on-off keying (OOK), and the amplitude information of OOK with overlaid OFDM sequence. It can also detect the frequency information of frequency shift keying (FSK) through multiple parallel envelope detection receivers. It can also detect the first synchronization signal through the low-power mode of the receiver, such as the envelope detection method.

[0160] On the other hand, when the first synchronization signal uses an OFDM waveform, the terminal can perform detection solely in the time domain, without relying on a module that transforms the signal into the frequency domain, such as an FFT, thereby reducing power consumption. As described above, due to the use of a waveform and signal detection method that are easily detectable by a low-power receiver or a low-power mode of the receiver, the terminal can detect the first synchronization signal using the first mode, obtain first synchronization information based on the first synchronization signal, determine second synchronization information, and then, based on the second synchronization information, detect the second synchronization signal using the second mode.

[0161] Optionally, both the first synchronization signal and the second synchronization signal may be transmitted in a periodic manner. As shown in FIG3 , each transmission period includes multiple time domain transmission position sets, each time domain transmission position set includes a group of time domain transmission positions, and the transmission method for the multiple time domain transmission positions in each time domain transmission position set adopts one of the following:

[0162] The transmission content is the same and the transmission method uses the same beam transmission;

[0163] The transmission content is the same, and the transmission method is beam scanning;

[0164] The transmission content is different, but the transmission method uses the same beam transmission;

[0165] The transmission content is different, and the transmission method is based on beam scanning.

[0166] Optionally, in each transmission period, a transmission method for multiple time domain transmission positions corresponding to the same transmission position index in different time domain transmission position sets adopts one of the following:

[0167] The transmission content is the same and the transmission method uses the same beam transmission;

[0168] The transmission content is different, but the transmission method uses the same beam transmission.

[0169] In one example, the first synchronization information includes at least one of the following:

[0170] an index corresponding to a set of time domain transmission positions included in one transmission period of the second synchronization signal;

[0171] an index corresponding to the number of time domain transmission positions included in each time domain transmission position set of the second synchronization signal;

[0172] an index corresponding to a transmission mode of multiple time domain transmission positions of each time domain transmission position set of the second synchronization signal;

[0173] An index corresponding to a transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period of the second synchronization signal.

[0174] Optionally, according to the index included in the first synchronization information, the transmission configuration information of the second synchronization signal can be queried in the corresponding index set.

[0175] For example, the index set corresponding to the time domain transmission position set can be agreed upon by protocol or pre-configured by the network side device (the set includes the corresponding relationship between the time domain transmission position set and the index), and the time domain transmission position set included in one transmission cycle of the second synchronization signal and the number of time domain transmission position sets included in one transmission cycle of the second synchronization signal can be determined based on the index corresponding to the time domain transmission position set included in one transmission cycle of the second synchronization signal and the index set corresponding to the time domain transmission position set.

[0176] For example, an index set corresponding to the number of time domain transmission positions can be agreed upon by protocol or pre-configured by the network side device (the set includes the correspondence between the number of time domain transmission positions and the index), and the index corresponding to the number of time domain transmission positions contained in each time domain transmission position set of the second synchronization signal can be determined based on the index corresponding to the number of time domain transmission positions contained in each time domain transmission position set of the second synchronization signal and the index set corresponding to the number of time domain transmission positions.

[0177] For example, an index set corresponding to the transmission mode (the set includes the corresponding relationship between the transmission mode and the index) may be pre-configured by a protocol agreement or a network-side device, and the transmission mode of the multiple time-domain transmission positions of each time-domain transmission position set of the second synchronization signal may be determined based on the index corresponding to the transmission mode of the multiple time-domain transmission positions of each time-domain transmission position set of the second synchronization signal and the index set corresponding to the transmission mode. The transmission mode of the multiple time-domain transmission positions corresponding to the same transmission position in different time-domain transmission position sets within each transmission period of the second synchronization signal may also be determined based on the index corresponding to the transmission mode of the multiple time-domain transmission positions corresponding to the same transmission position in different time-domain transmission position sets within each transmission period of the second synchronization signal and the index set corresponding to the transmission mode.

[0178] Optionally, in one example, there is a time transmission interval between the first synchronization signal and the second synchronization signal, the periods of the first synchronization signal and the second synchronization signal may be the same or different, the transmission frequencies of the first synchronization signal and the second synchronization signal may be the same or different, the number of time domain transmission position sets contained in each transmission period of the first synchronization signal and the second synchronization signal may be the same or different, and the number of time domain transmission positions contained in each time domain transmission position set of the first synchronization signal and the second synchronization signal may be the same or different.

[0179] In another example, as shown in FIG4 , the first synchronization signal and the second synchronization signal are transmitted adjacently, there is no time interval between the end position of the first synchronization signal transmission and the start position of the second synchronization signal transmission, the first synchronization signal and the second synchronization signal have the same period, the first synchronization signal and the second synchronization signal have the same transmission frequency, the first synchronization signal and the second synchronization signal have the same number of time domain transmission position sets within each transmission period, and each time domain transmission position set of the first synchronization signal and the second synchronization signal has the same number of time domain transmission positions. The first synchronization information may indicate transmission configuration information of the second synchronization signal.

[0180] In the second embodiment, the time domain information (or referred to as time domain position information) of the second synchronization signal is determined according to the first synchronization information.

[0181] In one example, as shown in Figure 4, the first synchronization signal and the second synchronization signal are transmitted adjacently, there is no time interval between the end position of the first synchronization signal transmission and the start position of the second synchronization signal transmission, the transmission frequency of the first synchronization signal and the second synchronization signal are the same, and the first synchronization signal can be detected using a low-power receiver or a low-power mode of the terminal, including multiple frequency positions in the first frequency group, and continuously detecting whether the first synchronization signal exists in the time domain. The method for determining whether the first synchronization signal exists includes at least one of the following:

[0182] All common sequence detections included in the first synchronization signal meet a preset threshold;

[0183] All information bearing blocks included in the first synchronization signal pass CRC check.

[0184] After the first synchronization signal is detected successfully, the time domain information of the second synchronization signal is determined based on the obtained first synchronization information.

[0185] Optionally, in one example, the first synchronization information may carry indication information for indicating the period information of the second synchronization signal. For example, the first synchronization information may include a second index, and the period length of the second synchronization signal is determined based on the second index and a protocol agreement or a period length index set pre-configured by the network side device (the set includes an association between the period length and the index).

[0186] Optionally, in one example, the period information of the second synchronization signal may be implicitly indicated by the sequence carried by the first synchronization information. For example, the relationship between the sequence and the period length may be determined by the protocol agreement or pre-configured by the network-side device. The terminal may determine the period length of the second synchronization signal based on the sequence carried by the first synchronization information and the relationship between the sequence and the period length.

[0187] Optionally, the time offset between the time domain start or end position of the first synchronization signal and the time domain start or end position of the second synchronization signal is obtained through network side device preconfiguration or protocol predefinition, and the terminal determines the time domain start or end position of the second synchronization signal based on the detected time domain start or end position and time offset of the first synchronization signal (i.e., the above-mentioned first time offset information or second time offset information).

[0188] Optionally, the cycle length of the second synchronization signal is determined to be the same as the cycle length of the first synchronization signal by pre-configuration of the network side device or pre-definition of the protocol, and the terminal determines the cycle length of the second synchronization signal by the cycle length of the first synchronization signal.

[0189] In another example, as shown in FIG3 , there is a time transmission interval between the first synchronization signal and the second synchronization signal, the periods of the first synchronization signal and the second synchronization signal may be the same or different, the transmission frequencies of the first synchronization signal and the second synchronization signal may be the same or different, the number of time domain transmission position sets included in each transmission period of the first synchronization signal and the second synchronization signal may be the same or different, and the number of time domain transmission positions included in each time domain transmission position set of the first synchronization signal and the second synchronization signal may be the same or different. The first synchronization signal can be detected using a low-power mode of a low-power receiver or terminal, including multiple frequency positions in a first frequency group, and continuously detecting whether the first synchronization signal exists in the time domain. The method for determining whether the first synchronization signal exists includes at least one of the following:

[0190] All common sequence detections included in the first synchronization signal meet a preset threshold;

[0191] All information bearing blocks included in the first synchronization signal pass CRC check.

[0192] Optionally, after the first synchronization signal is detected successfully, the time domain information of the second synchronization signal is determined based on the obtained first synchronization information.

[0193] For example, determining the time domain information of the second synchronization signal according to the first synchronization information includes: using the time domain start or end position of the first synchronization signal as a reference position, and obtaining the time domain start or end position of the second synchronization signal after time offset.

[0194] Optionally, in an example, the first synchronization information may indicate first time offset information, that is, an offset value between a time domain start or end position of the first synchronization signal and a time domain listening window start position of the second synchronization signal.

[0195] Optionally, in one example, the time offset between the time domain start or end position of the first synchronization signal and the time domain start or end position of the second synchronization signal (i.e., the second time offset information) is obtained through network side device pre-configuration or protocol pre-definition, and the terminal determines the time domain start or end position of the second synchronization signal based on the detected time domain start or end position of the first synchronization signal and the time offset (i.e., the second time offset information).

[0196] Optionally, determining the time domain listening window position information of the second synchronization signal according to the first synchronization information includes one of the following:

[0197] The first synchronization information indicates a time offset (i.e., third time offset information) between a time domain start or end position of the first synchronization signal and a time domain listening window start position of the second synchronization signal, and a listening window length (i.e., first listening window length);

[0198] The first synchronization information indicates the time offset between the start or end position of the first synchronization signal time domain and the start position of the second synchronization signal time domain listening window (i.e., the fourth time offset information), and the listening window length (i.e., the first listening window length) is determined by network pre-configuration or protocol pre-definition.

[0199] Optionally, the first synchronization information may also indicate the starting or ending position of the first synchronization signal plus a fixed time length offset and the time offset and listening window length of the starting position of the second synchronization signal time domain listening window. The fixed time length offset may be determined by network pre-configuration or protocol pre-defined manner, for example, not less than the terminal's processing time for the first synchronization signal.

[0200] Optionally, determining the second synchronization signal period information according to the first synchronization information may include at least one of the following:

[0201] The first synchronization information indicates a cycle length of the second synchronization signal;

[0202] The cycle length of the second synchronization signal is determined to be the same as the cycle length of the first synchronization signal through network preconfiguration or protocol predefinition, or the cycle length of the second synchronization signal is an integer multiple of the cycle length of the first synchronization signal, or the cycle length of the first synchronization signal is an integer multiple of the cycle length of the second synchronization signal. The terminal determines the cycle length of the second synchronization signal through the cycle length of the first synchronization signal.

[0203] The method for the terminal to determine the first synchronization signal period includes determining by detection, or determining by preconfiguration or protocol predefined manner.

[0204] Optionally, the terminal detects the time position of the second synchronization signal within the listening window by determining the starting position and length of the listening window of the second synchronization signal. This method can be flexibly applied to the following situations, effectively reducing the complexity of the first synchronization signal indication: the periods of the first synchronization signal and the second synchronization signal can be the same or different, the transmission frequencies of the first synchronization signal and the second synchronization signal can be the same or different, the number of time domain transmission position sets contained in each transmission period of the first synchronization signal and the second synchronization signal can be the same or different, and the number of time domain transmission positions contained in each time domain transmission position set of the first synchronization signal and the second synchronization signal can be the same or different.

[0205] In the third embodiment, frequency domain information (or frequency domain position information) of a second synchronization signal is determined according to the first synchronization information.

[0206] Optionally, determining the frequency information of the second synchronization signal according to the first synchronization information may include:

[0207] The first synchronization information indicates the frequency point index of the second synchronization signal in the second frequency point group; for example, a frequency point index of the first frequency point group is uniquely associated with a frequency point index of the second frequency point group, or, a frequency point index of the first frequency point group corresponds to a set of more than one frequency points in the second frequency point group, and the first synchronization information indicates a frequency point in the set.

[0208] Optionally, the frequency information included in the first frequency group and the second frequency group may be the same or different.

[0209] Optionally, determining the second synchronization signal bandwidth information according to the first synchronization information includes: the first synchronization information indicates bandwidth information of the second synchronization signal.

[0210] Optionally, the terminal detects the first synchronization signal in a first frequency group, where candidate frequencies in the first frequency group are related to at least one of the following:

[0211] Operating frequency band, including type (such as time division duplex (TDD), frequency division duplex (FDD), licensed and unlicensed) and frequency band range;

[0212] The subcarrier spacing of the first synchronization signal, for example, the subcarrier spacing used by the OFDM generator used to generate the first synchronization signal;

[0213] Global Synchronization Channel Number (GSCN);

[0214] Absolute Radio Frequency Channel Number (ARFCN);

[0215] Frequency bands supported by the terminal.

[0216] Optionally, the terminal detects the second synchronization signal in the second frequency group, where the candidate frequencies of the second frequency group are related to at least one of the following:

[0217] Operating frequency band, including type (such as time division duplex (TDD), frequency division duplex (FDD), licensed and unlicensed) and frequency band range;

[0218] The subcarrier spacing of the second synchronization signal, for example, the subcarrier spacing used by the OFDM generator used to generate the second synchronization signal;

[0219] GSCN;

[0220] ARFCN;

[0221] Frequency bands supported by the terminal.

[0222] In one example, the frequency information contained in the first frequency group and the second frequency group is exactly the same, that is, the number of frequencies contained is exactly the same as the candidate frequency positions. The terminal determines the frequency position of the second synchronization signal by detecting the frequency position of the first synchronization signal, that is, the first synchronization signal and the second synchronization signal are transmitted at the same frequency position. The first synchronization information indicates the bandwidth information of the second synchronization signal, or the bandwidth information of the second synchronization signal is determined in a manner predefined by the network and configuration or protocol.

[0223] In one example, the first frequency point group and the second frequency point group contain different candidate frequency point positions but the same number of frequencies. A frequency point index of the first frequency point group is uniquely associated with a frequency point index of the second frequency point group. The terminal determines that the first synchronization signal is located at the frequency point index of the first frequency point group by detecting the frequency point position of the first synchronization signal, thereby determining that the second synchronization signal is located at the frequency point index of the second frequency point group. The first synchronization information indicates the bandwidth information of the second synchronization signal, or the bandwidth information of the second synchronization signal is determined in a manner predefined by the network and configuration or protocol.

[0224] In one example, the frequency point information contained in the first frequency point group and the second frequency point group is different, such as the candidate frequency point positions are different or the number of frequency points is different or both are different. At this time, a frequency point index of the first frequency point group corresponds to a set of more than one frequency points in the second frequency point group, the first synchronization information indicates a frequency point in the set, the first synchronization information indicates the bandwidth information of the second synchronization signal, or the bandwidth information of the second synchronization signal is determined in a manner predefined by the network and configuration or protocol.

[0225] In the fourth embodiment, a terminal detects a first synchronization signal and a second synchronization signal.

[0226] In one example, the first synchronization signal adopts ASK, including OOK or FSK, so the terminal can use a low-power receiver or a low-power receiving mode to detect the first synchronization signal, and the detection power consumption is low. The second synchronization signal adopts OFDM, so the terminal uses an OFDM receiver to detect the second synchronization signal, and the detection power consumption is high.

[0227] The first synchronization signal includes at least one sequence and at least one information bearing block (including a CRC check). The terminal continuously detects the first synchronization signal at multiple candidate frequency points in the first frequency point group and in the time domain. At this time, the first storage unit is used to store the first synchronization signal at multiple candidate frequency points and in the time domain that is equal to the transmission period of the first synchronization signal. The second synchronization signal is not stored and detected before the first synchronization signal is successfully detected. The method for determining whether the first synchronization signal is successfully detected includes one of the following:

[0228] All common sequence detections included in the first synchronization signal meet a preset threshold;

[0229] All information bearing blocks included in the first synchronization signal pass CRC check.

[0230] Optionally, after successfully detecting the first synchronization signal, the time domain and frequency domain resource location information of the second synchronization signal is determined based on the first synchronization information. Since clear time domain and frequency domain resource information can be obtained, the blind detection requirement is reduced. It is only necessary to use a second storage unit to save a candidate frequency point and a second synchronization signal that is much smaller than the second synchronization signal transmission period in the time domain, and perform detection. Therefore, the detection complexity and the second storage unit requirement are greatly reduced.

[0231] Embodiment 5: Type of the second synchronization signal.

[0232] In some embodiments, the type of the second synchronization signal may be considered, for example, a cell-defined SSB (CD-SSB) or a non-cell-defined SSB (NCD-SSB). It is understood that both types of SSB can help the UE perform timing and frequency synchronization. The difference lies in that the parameters indicated by the NCD-SSB and CD-SSB are different.

[0233] For example, NCD-SSB:

[0234] The relative position relationship between the SSB and the resource block (RB) grid, the time-frequency domain resources and monitoring information of the remaining minimum system information (RMSI) control resource set 0 (CORESET#0), that is, the terminal cannot reside in or access the cell through the reception of this type of SSB. Instead, the PBCH in the NCD-SSB at the GSCN position will indicate the position of the CD-SSB: the frequency domain position of the nearest CD-SSB in the frequency domain, or the absence of CD-SSB within a certain frequency domain range.

[0235] It can be transmitted at the GSCN or not at the GSCN location. For example, the terminal can find the CD-SSB through the NCD-SSB to camp on or access the cell.

[0236] CD-SSB:

[0237] The PBCH in the CD-SSB will directly indicate the RMSI PDCCH search space (Search Space), or, through the CD-SSB, the CORESET#0 or RMSI PDCCH Search Space of SIB1 can be directly found.

[0238] RRM measurement, RLM, etc.;

[0239] It must be transmitted at the frequency position corresponding to GSCN.

[0240] Optionally, the type of the second synchronization signal is CD-SSB or NCD-SSB.

[0241] Optionally, the second synchronization signal includes one or more synchronization signals.

[0242] In one embodiment, the location information of the plurality of second synchronization signals includes locations of second synchronization signals of different types.

[0243] Optionally, the first synchronization information indicates a time offset of a start or end position of one or more second synchronization signals. For example, the first synchronization information indicates at least one of a CD-SSB offset and an NCD-SSB offset. In this way, one or more second synchronization signal information can be obtained directly from the first synchronization signal.

[0244] In some embodiments, the first synchronization signal and the second synchronization signal have a specific time-frequency domain position relationship.

[0245] Optionally, the first synchronization signal and the second synchronization signal may be FDM, that is, the time domain offset between the two is 0.

[0246] Optionally, the first synchronization signal and the second synchronization signal may have a TDM relationship that satisfies certain conditions, for example, an offset between the two is greater than a specific value.

[0247] 5 , an embodiment of the present application further provides a synchronization signal transmission method. As shown in FIG5 , the synchronization signal transmission method includes:

[0248] Step 501: The network side device sends a first synchronization signal and a second synchronization signal;

[0249] The first synchronization signal carries first synchronization information, and the first synchronization information is used to determine second synchronization information for detecting the second synchronization signal.

[0250] Optionally, the first synchronization signal adopts any one of the following waveforms or modulation methods: amplitude shift keying (ASK); frequency shift keying (FSK); on-off keying (OOK) superimposed orthogonal frequency division multiplexing (OFDM); or OFDM.

[0251] Optionally, the first synchronization information is carried in any of the following ways:

[0252] at least one common sequence;

[0253] A portion of the first synchronization information is carried by at least one common sequence, and another portion of the first synchronization information is carried by at least one information bearing block, wherein the at least one information bearing block includes a cyclic redundancy check (CRC).

[0254] Optionally, the first synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the first synchronization signal satisfies at least one of the following:

[0255] The transmission mode of the multiple time domain transmission positions in each time domain transmission position set is the first transmission mode;

[0256] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period is the second transmission mode;

[0257] The first transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0258] The second transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0259] Optionally, the second synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the second synchronization signal satisfies at least one of the following:

[0260] The transmission mode of the multiple time domain transmission positions within each time domain transmission position set is the third transmission mode;

[0261] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission cycle is the fourth transmission mode;

[0262] The third transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0263] The fourth transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0264] Optionally, the second synchronization information includes at least one of the following:

[0265] Transmit configuration information;

[0266] Frequency domain information;

[0267] Time domain information.

[0268] Optionally, the transmission configuration information includes at least one of the following:

[0269] The number of time domain transmission position sets contained in a transmission cycle;

[0270] The number of time domain transmission positions contained in each time domain transmission position set;

[0271] a transmission method of the multiple time-domain transmission positions of each time-domain transmission position set;

[0272] A transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period.

[0273] Optionally, the first synchronization information includes at least one of the following:

[0274] an index corresponding to a set of time domain transmission positions included in one transmission period of the second synchronization signal;

[0275] an index corresponding to the number of time domain transmission positions included in each time domain transmission position set of the second synchronization signal;

[0276] an index corresponding to a transmission mode of multiple time domain transmission positions of each time domain transmission position set of the second synchronization signal;

[0277] An index corresponding to a transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period of the second synchronization signal.

[0278] Optionally, the frequency domain information includes at least one of the following: frequency point information and bandwidth information.

[0279] Optionally, the time domain information includes at least one of the following:

[0280] first time domain location information, the first time domain location information including at least one of starting time domain location information and ending time domain location information;

[0281] Monitor time window position information;

[0282] Cycle information.

[0283] Optionally, the first synchronization information includes at least one of the following:

[0284] An index of a frequency point of the second frequency point group;

[0285] A frequency index set or a frequency index set identifier of a second frequency group;

[0286] An index of a frequency point in the frequency point index set of the second frequency point group;

[0287] a first index, where the first index is used to indicate at least one bandwidth information in the bandwidth information set of the second synchronization signal;

[0288] first time offset information, the first time offset information including an offset value between the second time domain position information and the first time domain position information;

[0289] third time offset information, the third time offset information comprising an offset value between the second time domain position information and a start position of the time domain monitoring window of the second synchronization signal;

[0290] First monitoring window length;

[0291] Second monitoring window length;

[0292] a second index, where the second index is used to indicate at least one cycle length in the cycle length set;

[0293] The second frequency point group is used to transmit the second synchronization signal.

[0294] Optionally, the first configuration information of the first synchronization signal includes at least one of the following: a candidate frequency point set of the first frequency point group; a frequency domain bandwidth; a time domain period; a signal waveform; a sequence form; an information block size; a mode of carrying the first synchronization information; and a transmission mode.

[0295] The first frequency point group is used to transmit the first synchronization signal.

[0296] Optionally, the second configuration information of the second synchronization signal includes at least one of the following: a candidate frequency set of the second frequency group; frequency domain bandwidth; time domain length; time domain period; signal waveform; sequence form; information block size; and transmission mode.

[0297] Optionally, the first synchronization signal is associated with the second synchronization signal, and the association relationship between the first synchronization signal and the second synchronization signal includes at least one of the following:

[0298] an association relationship between a first frequency group and a second frequency group, the first frequency group being used to transmit the first synchronization signal, and the second frequency group being used to transmit the second synchronization signal;

[0299] an association relationship between the frequency of the first synchronization signal and the frequency of the second synchronization signal;

[0300] a correlation between the frequency bandwidth of the first synchronization signal and the frequency bandwidth of the second synchronization signal;

[0301] an association between a transmission mode of the first synchronization signal and a transmission mode of the second synchronization signal;

[0302] Time offset information between the first synchronization signal and the second synchronization signal.

[0303] Optionally, the first synchronization signal and the second synchronization signal are time division multiplexed or frequency division multiplexed.

[0304] The synchronization signal transmission method provided in the embodiment of the present application can be executed by a synchronization signal transmission device. In the embodiment of the present application, the synchronization signal transmission device provided in the embodiment of the present application is described by taking the synchronization signal transmission method performed by the synchronization signal transmission device as an example.

[0305] 6 , an embodiment of the present application further provides a synchronization signal transmission device. As shown in FIG6 , the synchronization signal transmission device 600 includes:

[0306] A detection module 601 is configured to detect a first synchronization signal based on a first mode to obtain first synchronization information;

[0307] A determination module 602 is configured to determine second synchronization information associated with a second synchronization signal based on the first synchronization information;

[0308] The detection module 601 is further configured to detect the second synchronization signal based on the second synchronization information and the second pattern;

[0309] The peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode.

[0310] Optionally, the first synchronization signal adopts any one of the following waveforms or modulation methods: amplitude shift keying (ASK); frequency shift keying (FSK); on-off keying (OOK) superimposed orthogonal frequency division multiplexing (OFDM); or OFDM.

[0311] Optionally, the first synchronization information is carried in any of the following ways:

[0312] at least one common sequence;

[0313] A portion of the first synchronization information is carried by at least one common sequence, and another portion of the first synchronization information is carried by at least one information bearing block, wherein the at least one information bearing block includes a cyclic redundancy check (CRC).

[0314] Optionally, the first synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the first synchronization signal satisfies at least one of the following:

[0315] The transmission mode of the multiple time domain transmission positions in each time domain transmission position set is the first transmission mode;

[0316] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period is the second transmission mode;

[0317] The first transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0318] The second transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0319] Optionally, the second synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the second synchronization signal satisfies at least one of the following:

[0320] The transmission mode of the multiple time domain transmission positions within each time domain transmission position set is the third transmission mode;

[0321] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission cycle is the fourth transmission mode;

[0322] The third transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0323] The fourth transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0324] Optionally, the second synchronization information includes at least one of the following:

[0325] Transmit configuration information;

[0326] Frequency domain information;

[0327] Time domain information.

[0328] Optionally, the transmission configuration information includes at least one of the following:

[0329] The number of time domain transmission position sets contained in a transmission cycle;

[0330] The number of time domain transmission positions contained in each time domain transmission position set;

[0331] a transmission method of the multiple time-domain transmission positions of each time-domain transmission position set;

[0332] A transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission cycle.

[0333] Optionally, the first synchronization information includes at least one of the following:

[0334] an index corresponding to a set of time domain transmission positions included in one transmission period of the second synchronization signal;

[0335] an index corresponding to the number of time domain transmission positions included in each time domain transmission position set of the second synchronization signal;

[0336] an index corresponding to a transmission mode of multiple time domain transmission positions of each time domain transmission position set of the second synchronization signal;

[0337] An index corresponding to a transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period of the second synchronization signal.

[0338] Optionally, the frequency domain information includes at least one of the following: frequency point information and bandwidth information.

[0339] Optionally, the determining module 602 is specifically configured to perform any one of the following:

[0340] In a case where a frequency point of the first frequency point group is uniquely associated with a frequency point of the second frequency point group, determining the frequency point information based on an index of a frequency point of the second frequency point group included in the first synchronization information;

[0341] In a case where a frequency point of the first frequency point group is uniquely associated with a frequency point of the second frequency point group, determining the frequency point information based on a frequency point where the first synchronization signal corresponding to the first synchronization information is located;

[0342] In a case where a frequency point of the first frequency point group is uniquely associated with at least two frequency points of the second frequency point group, determining the frequency point information based on a frequency point index set or a frequency point index set identifier of the second frequency point group included in the first synchronization information and an index of a frequency point in the frequency point index set;

[0343] In a case where a frequency point of the first frequency point group is uniquely associated with at least two frequency points of the second frequency point group, determining the frequency point information based on an index of a frequency point in a frequency point index set of the second frequency point group included in the first synchronization information;

[0344] The first frequency group is used to transmit the first synchronization signal, and the second frequency group is used to transmit the second synchronization signal.

[0345] Optionally, the determining module 602 is specifically configured to determine the bandwidth information based on a first index included in the first synchronization information;

[0346] The first index is used to indicate at least one bandwidth information in the bandwidth information set of the second synchronization signal.

[0347] Optionally, the time domain information includes at least one of the following:

[0348] first time domain location information, the first time domain location information including at least one of starting time domain location information and ending time domain location information;

[0349] Monitor time window position information;

[0350] Cycle information.

[0351] Optionally, the determining module 602 is specifically configured to perform at least one of the following:

[0352] Determine the first time domain position information based on first time offset information included in the first synchronization information, where the first time offset information includes an offset value between the second time domain position information and the first time domain position information;

[0353] Determine the first time domain location information based on second time domain location information and second time offset information, where the second time offset information is preconfigured based on a protocol agreement or a network-side device, and the second time offset information includes an offset value between the second time domain location information and the first time domain location information;

[0354] The second time domain position information includes at least one of a starting time domain position and an ending time domain position of the first synchronization signal.

[0355] Optionally, the determining module 602 is specifically configured to perform any of the following:

[0356] Determining the listening time window position information based on the third time offset information and the first listening window length;

[0357] Determining the listening time window position information based on the fourth time offset information and the second listening window length;

[0358] In which, the third time offset information is included in the first synchronization information, and the third time offset information includes the offset value of the second time domain position information and the starting position of the time domain listening window of the second synchronization signal, and the first listening window length is agreed upon by the protocol or pre-configured by the network side device or included in the first synchronization information; the fourth time offset information is agreed upon by the protocol or pre-configured by the network side device, and the fourth time offset information includes the offset value of the second time domain position information and the starting position of the time domain listening window of the second synchronization signal, and the second listening window length is included in the first synchronization information.

[0359] Optionally, the determining module 602 is specifically configured to perform any one of the following:

[0360] Determining the period information based on a second index, where the second index is used to indicate at least one period length in a period length set;

[0361] The period information is determined based on a period length of the first synchronization signal corresponding to the first synchronization information.

[0362] Optionally, the first configuration information of the first synchronization signal includes at least one of the following: a set of candidate frequencies of the first frequency group; frequency domain bandwidth; time domain period; signal waveform; sequence form; information block size; a method of carrying the first synchronization information; and a transmission method.

[0363] Optionally, the second configuration information of the second synchronization signal includes at least one of the following: a candidate frequency set of the second frequency group; frequency domain bandwidth; time domain length; time domain period; signal waveform; sequence form; information block size; and transmission mode.

[0364] Optionally, the first synchronization signal is associated with the second synchronization signal, and the association relationship between the first synchronization signal and the second synchronization signal includes at least one of the following:

[0365] an association relationship between a first frequency group and a second frequency group, the first frequency group being used to transmit the first synchronization signal, and the second frequency group being used to transmit the second synchronization signal;

[0366] an association relationship between the frequency of the first synchronization signal and the frequency of the second synchronization signal;

[0367] a correlation between the frequency bandwidth of the first synchronization signal and the frequency bandwidth of the second synchronization signal;

[0368] an association between a transmission mode of the first synchronization signal and a transmission mode of the second synchronization signal;

[0369] Time offset information between the first synchronization signal and the second synchronization signal.

[0370] Optionally, the first synchronization signal and the second synchronization signal are time division multiplexed or frequency division multiplexed.

[0371] 7 , an embodiment of the present application further provides a synchronization signal transmission device. As shown in FIG7 , the synchronization signal transmission device 700 includes:

[0372] A sending module 701 is configured to send a first synchronization signal and a second synchronization signal;

[0373] The first synchronization signal carries first synchronization information, and the first synchronization information is used to determine second synchronization information for detecting the second synchronization signal.

[0374] Optionally, the first synchronization signal adopts any one of the following waveforms or modulation methods: amplitude shift keying (ASK); frequency shift keying (FSK); on-off keying (OOK) superimposed orthogonal frequency division multiplexing (OFDM); or OFDM.

[0375] Optionally, the first synchronization information is carried in any of the following ways:

[0376] at least one common sequence;

[0377] A portion of the first synchronization information is carried by at least one common sequence, and another portion of the first synchronization information is carried by at least one information bearing block, wherein the at least one information bearing block includes a cyclic redundancy check (CRC).

[0378] Optionally, the first synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the first synchronization signal satisfies at least one of the following:

[0379] The transmission mode of the multiple time domain transmission positions in each time domain transmission position set is the first transmission mode;

[0380] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period is the second transmission mode;

[0381] The first transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0382] The second transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0383] Optionally, the second synchronization signal is a periodic signal, and each transmission period includes at least one time domain transmission position set, and each time domain transmission position set includes a group of time domain transmission positions; wherein the second synchronization signal satisfies at least one of the following:

[0384] The transmission mode of the multiple time domain transmission positions within each time domain transmission position set is the third transmission mode;

[0385] The transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission cycle is the fourth transmission mode;

[0386] The third transmission mode includes any one of the following: the same transmission content and the same beam transmission; the same transmission content and the beam scanning transmission; different transmission content and the same beam transmission; different transmission content and the beam scanning transmission;

[0387] The fourth transmission mode includes any one of the following: the transmission content is the same and is transmitted using the same beam; the transmission content is different and is transmitted using the same beam.

[0388] Optionally, the second synchronization information includes at least one of the following:

[0389] Transmit configuration information;

[0390] Frequency domain information;

[0391] Time domain information.

[0392] Optionally, the transmission configuration information includes at least one of the following:

[0393] The number of time domain transmission position sets contained in a transmission cycle;

[0394] The number of time domain transmission positions contained in each time domain transmission position set;

[0395] a transmission method of the multiple time-domain transmission positions of each time-domain transmission position set;

[0396] A transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period.

[0397] Optionally, the first synchronization information includes at least one of the following:

[0398] an index corresponding to a set of time domain transmission positions included in one transmission period of the second synchronization signal;

[0399] an index corresponding to the number of time domain transmission positions included in each time domain transmission position set of the second synchronization signal;

[0400] an index corresponding to a transmission mode of multiple time domain transmission positions of each time domain transmission position set of the second synchronization signal;

[0401] An index corresponding to a transmission mode of multiple time domain transmission positions corresponding to the same transmission position in different time domain transmission position sets within each transmission period of the second synchronization signal.

[0402] Optionally, the frequency domain information includes at least one of the following: frequency point information and bandwidth information.

[0403] Optionally, the time domain information includes at least one of the following:

[0404] first time domain location information, the first time domain location information including at least one of starting time domain location information and ending time domain location information;

[0405] Monitor time window position information;

[0406] Cycle information.

[0407] Optionally, the first synchronization information includes at least one of the following:

[0408] An index of a frequency point of the second frequency point group;

[0409] A frequency index set or a frequency index set identifier of a second frequency group;

[0410] An index of a frequency point in the frequency point index set of the second frequency point group;

[0411] a first index, where the first index is used to indicate at least one bandwidth information in the bandwidth information set of the second synchronization signal;

[0412] first time offset information, the first time offset information including an offset value between the second time domain position information and the first time domain position information;

[0413] third time offset information, the third time offset information comprising an offset value between the second time domain position information and a start position of the time domain monitoring window of the second synchronization signal;

[0414] First monitoring window length;

[0415] Second monitoring window length;

[0416] a second index, where the second index is used to indicate at least one cycle length in the cycle length set;

[0417] The second frequency point group is used to transmit the second synchronization signal.

[0418] Optionally, the first configuration information of the first synchronization signal includes at least one of the following: a candidate frequency point set of the first frequency point group; a frequency domain bandwidth; a time domain period; a signal waveform; a sequence form; an information block size; a mode of carrying the first synchronization information; and a transmission mode.

[0419] The first frequency point group is used to transmit the first synchronization signal.

[0420] Optionally, the second configuration information of the second synchronization signal includes at least one of the following: a candidate frequency set of the second frequency group; frequency domain bandwidth; time domain length; time domain period; signal waveform; sequence form; information block size; and transmission mode.

[0421] Optionally, the first synchronization signal is associated with the second synchronization signal, and the association relationship between the first synchronization signal and the second synchronization signal includes at least one of the following:

[0422] an association relationship between a first frequency group and a second frequency group, the first frequency group being used to transmit the first synchronization signal, and the second frequency group being used to transmit the second synchronization signal;

[0423] an association relationship between the frequency of the first synchronization signal and the frequency of the second synchronization signal;

[0424] a correlation between the frequency bandwidth of the first synchronization signal and the frequency bandwidth of the second synchronization signal;

[0425] an association relationship between a transmission mode of the first synchronization signal and a transmission mode of the second synchronization signal;

[0426] Time offset information between the first synchronization signal and the second synchronization signal.

[0427] Optionally, the first synchronization signal and the second synchronization signal are time division multiplexed or frequency division multiplexed.

[0428] The synchronization signal transmission 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 of an 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 the other device can be a server, a network attached storage (NAS), etc., which is not specifically limited in the embodiments of the present application.

[0429] The synchronization signal transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 5 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0430] As shown in Figure 8, an embodiment of the present application also provides a communication device 800, including a processor 801 and a memory 802, and the memory 802 stores a program or instruction that can be run on the processor 801. When the program or instruction is executed by the processor 801, the various steps of the above-mentioned synchronization signal transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0431] The present application also provides a terminal 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 FIG2 . 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.

[0432] 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.

[0433] 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.

[0434] 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.

[0435] 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.

[0436] 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.

[0437] 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.

[0438] The radio frequency unit 901 is configured to detect a first synchronization signal based on a first mode to obtain first synchronization information;

[0439] Processor 910 is configured to determine second synchronization information associated with a second synchronization signal based on the first synchronization information;

[0440] The radio frequency unit 901 is further configured to detect the second synchronization signal based on the second synchronization information and the second pattern;

[0441] The peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode.

[0442] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the terminal side method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0443] 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.

[0444] Specifically, an embodiment of the present application also provides a network-side device. As shown in Figure 10, the network-side device 1000 includes: an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004, and a memory 1005. Antenna 1001 is connected to radio frequency device 1002. In the uplink direction, radio frequency device 1002 receives information via antenna 1001 and sends the received information to baseband device 1003 for processing. In the downlink direction, baseband device 1003 processes the information to be transmitted and sends it to radio frequency device 1002. Radio frequency device 1002 processes the received information and sends it through antenna 1001.

[0445] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1003 , which includes a baseband processor.

[0446] The baseband device 1003 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 1005 through a bus interface to call the program in the memory 1005 and execute the network side device operations shown in the above method embodiment.

[0447] The network side device may further include a network interface 1006, which is, for example, a Common Public Radio Interface (CPRI).

[0448] Specifically, the network side device 1000 of the embodiment of the present application also includes: instructions or programs stored in the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute the method of execution of each module shown in Figure 7 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0449] 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 synchronization signal transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0450] 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.

[0451] 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 synchronization signal transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0452] 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.

[0453] 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 synchronization signal transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0454] 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 terminal side synchronization signal transmission method as described above, and the network side device can be used to execute the steps of the network side device synchronization signal transmission method as described above.

[0455] 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.

[0456] 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.

[0457] 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 synchronizing signal transmission, wherein, Including: The terminal detects a first synchronization signal based on a first mode and obtains first synchronization information; The terminal determines second synchronization information associated with a second synchronization signal based on the first synchronization information; The terminal detects the second synchronization signal based on the second synchronization information and a second mode; Wherein, the peak power consumption corresponding to the first mode is less than the peak power consumption corresponding to the second mode.

2. The method according to claim 1, wherein, The first synchronization signal adopts any one of the following waveforms or modulation methods: Amplitude Shift Keying (ASK); Frequency Shift Keying (FSK); On-Off Keying (OOK) superimposed on Orthogonal Frequency Division Multiplexing (OFDM); OFDM.

3. The method according to claim 1 or 2, wherein The first synchronization information is carried through any one of the following methods: At least one common sequence; A part of the first synchronization information is carried by at least one common sequence, and another part of the first synchronization information is carried by at least one information carrying block, and the at least one information carrying block includes Cyclic Redundancy Check (CRC).

4. The method according to any one of claims 1 to 3, wherein, The first synchronization signal is a periodic signal, and each transmission period includes at least one set of time-domain transmission positions, and each set of time-domain transmission positions includes a group of time-domain transmission positions; wherein, the first synchronization signal satisfies at least one of the following: The transmission method of multiple time-domain transmission positions within each set of time-domain transmission positions is a first transmission method; The transmission method of multiple time-domain transmission positions corresponding to the same transmission position within different sets of time-domain transmission positions in each transmission period is a second transmission method; Wherein, the first transmission method includes any one of the following: the transmission content is the same and transmitted using the same beam; the transmission content is the same and transmitted using a beam scanning method; the transmission content is different and transmitted using the same beam; the transmission content is different and transmitted using a beam scanning method; The second transmission method includes any one of the following: the transmission content is the same and transmitted using the same beam; the transmission content is different and transmitted using the same beam.

5. The method according to any one of claims 1 to 4, wherein The second synchronization signal is a periodic signal, and each transmission period includes at least one set of time-domain transmission positions, and each set of time-domain transmission positions includes a group of time-domain transmission positions; wherein, the second synchronization signal satisfies at least one of the following: The transmission method of multiple time-domain transmission positions within each set of time-domain transmission positions is a third transmission method; The transmission method of multiple time-domain transmission positions corresponding to the same transmission position within different sets of time-domain transmission positions in each transmission period is a fourth transmission method; Wherein, the third transmission method includes any one of the following: the transmission content is the same and transmitted using the same beam; the transmission content is the same and transmitted using a beam scanning method; the transmission content is different and transmitted using the same beam; the transmission content is different and transmitted using a beam scanning method; The fourth transmission method includes any one of the following: the transmission content is the same and transmitted using the same beam; the transmission content is different and transmitted using the same beam.

6. The method according to any one of claims 1 to 5, wherein The second synchronization information includes at least one of the following: Transmission configuration information; Frequency domain information; Time domain information.

7. The method according to claim 6, wherein, The transmission configuration information includes at least one of the following: The number of sets of time-domain transmission positions included in one transmission period; The number of time-domain transmission positions included in each set of time-domain transmission positions; The transmission mode of multiple time-domain transmission positions in each set of time-domain transmission positions; The transmission mode of multiple time-domain transmission positions corresponding to the same transmission position in different sets of time-domain transmission positions within each transmission period.

8. The method according to claim 7, wherein The first synchronization information includes at least one of the following: The index corresponding to the set of time-domain transmission positions included in one transmission period of the second synchronization signal; The index corresponding to the number of time-domain transmission positions included in each set of time-domain transmission positions of the second synchronization signal; The index corresponding to the transmission mode of multiple time-domain transmission positions in each set of time-domain transmission positions of the second synchronization signal; The index corresponding to the transmission mode of multiple time-domain transmission positions corresponding to the same transmission position in different sets of time-domain transmission positions within each transmission period of the second synchronization signal.

9. The method according to claim 6, wherein The second synchronization information determined by the terminal based on the first synchronization information and associated with the second synchronization signal includes any one of the following: When one frequency point of the first frequency point group is uniquely associated with one frequency point of the second frequency point group, the terminal determines the frequency point information based on the index of one frequency point of the second frequency point group included in the first synchronization information; When one frequency point of the first frequency point group is uniquely associated with one frequency point of the second frequency point group, the terminal determines the frequency point information based on the frequency point where the first synchronization signal corresponding to the first synchronization information is located; When one frequency point of the first frequency point group is uniquely associated with at least two frequency points of the second frequency point group, the terminal determines the frequency point information based on the set of frequency point indexes or the set identifier of the frequency point indexes of the second frequency point group included in the first synchronization information and the index of one frequency point in the set of frequency point indexes; When one frequency point of the first frequency point group is uniquely associated with at least two frequency points of the second frequency point group, the terminal determines the frequency point information based on the index of one frequency point in the set of frequency point indexes of the second frequency point group included in the first synchronization information; Wherein, the first frequency point group is used to transmit the first synchronization signal, and the second frequency point group is used to transmit the second synchronization signal.

10. The method according to claim 6, wherein, The second synchronization information determined by the terminal based on the first synchronization information and associated with the second synchronization signal includes: The terminal determines the bandwidth information based on the first index included in the first synchronization information; Wherein, the first index is used to indicate at least one bandwidth information in the set of bandwidth information of the second synchronization signal.

11. The method according to claim 6, wherein The time-domain information includes at least one of the following: First time-domain position information, the first time-domain position information includes at least one of start time-domain position information and end time-domain position information; Monitoring time window position information; Period information.

12. The method according to claim 11, wherein, The second synchronization information determined by the terminal based on the first synchronization information and associated with the second synchronization signal includes at least one of the following; The terminal determines the first time-domain position information based on the first time offset information included in the first synchronization information, and the first time offset information includes the offset value between the second time-domain position information and the first time-domain position information. The terminal determines the first time domain position information based on the second time domain position information and the second time offset information. The second time offset information is based on protocol agreement or pre-configured by the network side device, and the second time offset information includes an offset value between the second time domain position information and the first time domain position information; Wherein, the second time domain position information includes at least one of a start time domain position and an end time domain position of the first synchronization signal.

13. The method according to claim 11, wherein, The terminal determines second synchronization information associated with the second synchronization signal based on the first synchronization information, including any one of the following: The terminal determines the listening time window position information based on the third time offset information and the first listening window length; The terminal determines the listening time window position information based on the fourth time offset information and the second listening window length; Wherein, the third time offset information is included in the first synchronization information, and the third time offset information includes an offset value between the second time domain position information and the start position of the time domain listening window of the second synchronization signal. The first listening window length is based on protocol agreement or pre-configured by the network side device or included in the first synchronization information; the fourth time offset information is based on protocol agreement or pre-configured by the network side device, and the fourth time offset information includes an offset value between the second time domain position information and the start position of the time domain listening window of the second synchronization signal. The second listening window length is included in the first synchronization information.

14. The method according to claim 11, wherein The terminal determines second synchronization information associated with the second synchronization signal based on the first synchronization information, including any one of the following: The terminal determines the period information based on the second index, and the second index is used to indicate at least one period length in a set of period lengths; The terminal determines the period information based on the period length of the first synchronization signal corresponding to the first synchronization information.

15. The method according to any one of claims 1 to 14, wherein, The first configuration information of the first synchronization signal includes at least one of the following: a set of candidate frequency points of the first frequency point group; frequency domain bandwidth; time domain period; signal waveform; sequence form; information block size; manner of carrying the first synchronization information; transmission manner; Alternatively, the second configuration information of the second synchronization signal includes at least one of the following: a set of candidate frequency points of the second frequency point group; frequency domain bandwidth; time domain length; time domain period; signal waveform; sequence form; information block size; transmission manner.

16. The method according to any one of claims 1 to 15, wherein The first synchronization signal is associated with the second synchronization signal, and the association relationship between the first synchronization signal and the second synchronization signal includes at least one of the following: The association relationship between the first frequency point group and the second frequency point group, where the first frequency point group is used to transmit the first synchronization signal and the second frequency point group is used to transmit the second synchronization signal; The association relationship between the frequency point of the first synchronization signal and the frequency point of the second synchronization signal; The association relationship between the frequency domain bandwidth of the first synchronization signal and the frequency domain bandwidth of the second synchronization signal; The association relationship between the transmission manner of the first synchronization signal and the transmission manner of the second synchronization signal; The time offset information between the first synchronization signal and the second synchronization signal.

17. A method for synchronizing signal transmission, wherein, Including: The network side device sends the first synchronization signal and the second synchronization signal; Among them, the first synchronization signal carries first synchronization information, and the first synchronization information is used to determine second synchronization information for detecting the second synchronization signal.

18. The method according to claim 17, wherein, The first synchronization signal adopts any one of the following waveforms or modulation methods: amplitude shift keying (ASK); frequency shift keying (FSK); on-off keying (OOK) superimposed on orthogonal frequency division multiplexing (OFDM); OFDM.

19. The method according to claim 17 or 18, wherein, The first synchronization information is carried by any one of the following methods: At least one common sequence; A part of the first synchronization information is carried by at least one common sequence, and another part of the first synchronization information is carried by at least one information-carrying block, and the at least one information-carrying block includes cyclic redundancy check (CRC).

20. The method according to any one of claims 17 to 19, wherein The first synchronization signal is a periodic signal, and each transmission period includes at least one set of time-domain transmission positions, and each set of time-domain transmission positions includes a group of time-domain transmission positions; among them, the first synchronization signal satisfies at least one of the following: The transmission method of multiple time-domain transmission positions within each set of time-domain transmission positions is the first transmission method; The transmission method of multiple time-domain transmission positions corresponding to the same transmission position in different sets of time-domain transmission positions within each transmission period is the second transmission method; Among them, the first transmission method includes any one of the following: the transmission content is the same and the same beam is used for transmission; the transmission content is the same and beam scanning is used for transmission; the transmission content is different and the same beam is used for transmission; the transmission content is different and beam scanning is used for transmission; The second transmission method includes any one of the following: the transmission content is the same and the same beam is used for transmission; the transmission content is different and the same beam is used for transmission.

21. The method according to any one of claims 17 to 20, wherein The second synchronization signal is a periodic signal, and each transmission period includes at least one set of time-domain transmission positions, and each set of time-domain transmission positions includes a group of time-domain transmission positions; among them, the second synchronization signal satisfies at least one of the following: The transmission method of multiple time-domain transmission positions within each set of time-domain transmission positions is the third transmission method; The transmission method of multiple time-domain transmission positions corresponding to the same transmission position in different sets of time-domain transmission positions within each transmission period is the fourth transmission method; Among them, the third transmission method includes any one of the following: the transmission content is the same and the same beam is used for transmission; the transmission content is the same and beam scanning is used for transmission; the transmission content is different and the same beam is used for transmission; the transmission content is different and beam scanning is used for transmission; The fourth transmission method includes any one of the following: the transmission content is the same and the same beam is used for transmission; the transmission content is different and the same beam is used for transmission.

22. The method according to any one of claims 17 to 21, wherein The second synchronization information includes at least one of the following: Transmission configuration information; Frequency domain information; Time domain information.

23. The method according to claim 22, wherein, The transmission configuration information includes at least one of the following: The number of sets of time-domain transmission positions included in one transmission period; The number of time-domain transmission positions included in each set of time-domain transmission positions; The transmission method of multiple time-domain transmission positions in each set of time-domain transmission positions; The transmission method of multiple time-domain transmission positions corresponding to the same transmission position in different sets of time-domain transmission positions within each transmission period.

24. The method according to claim 23, wherein, The first synchronization information includes at least one of the following: Indices corresponding to the set of time-domain transmission positions included within one transmission period of the second synchronization signal; Indices corresponding to the number of time-domain transmission positions included in each set of time-domain transmission positions of the second synchronization signal; Indices corresponding to the transmission modes of the multiple time-domain transmission positions in each set of time-domain transmission positions of the second synchronization signal; Indices corresponding to the transmission modes of the multiple time-domain transmission positions at the same transmission position within different sets of time-domain transmission positions within each transmission period of the second synchronization signal.

25. The method according to claim 22, wherein, The time-domain information includes at least one of the following: First time-domain position information, where the first time-domain position information includes at least one of start time-domain position information and end time-domain position information; Listening time window position information; Period information.

26. The method according to any one of claims 22 to 25, wherein The first synchronization information includes at least one of the following: Index of a frequency point in a second frequency point group; Set of frequency point indices or identification of the set of frequency point indices of the second frequency point group; Index of a frequency point in the set of frequency point indices of the second frequency point group; First index, where the first index is used to indicate at least one bandwidth information in the set of bandwidth information of the second synchronization signal; First time offset information, where the first time offset information includes the offset value between the second time-domain position information and the first time-domain position information; Third time offset information, where the third time offset information includes the offset value between the second time-domain position information and the start position of the time-domain listening window of the second synchronization signal; First listening window length; Second listening window length; Second index, where the second index is used to indicate at least one period length in the set of period lengths; Wherein, the second frequency point group is used to transmit the second synchronization signal.

27. The method according to any one of claims 17 to 26, wherein, The first configuration information of the first synchronization signal includes at least one of the following: candidate frequency point set of the first frequency point group; frequency domain bandwidth; time domain period; signal waveform; sequence form; information block size; manner of carrying the first synchronization information; transmission mode; wherein, the first frequency point group is used to transmit the first synchronization signal; Alternatively, the second configuration information of the second synchronization signal includes at least one of the following: candidate frequency point set of the second frequency point group; frequency domain bandwidth; time domain length; time domain period; signal waveform; sequence form; information block size; transmission mode.

28. The method according to any one of claims 17 to 27, wherein The first synchronization signal is associated with the second synchronization signal, and the association relationship between the first synchronization signal and the second synchronization signal includes at least one of the following: Association relationship between the first frequency point group and the second frequency point group, where the first frequency point group is used to transmit the first synchronization signal and the second frequency point group is used to transmit the second synchronization signal; Association relationship between the frequency point of the first synchronization signal and the frequency point of the second synchronization signal; Association relationship between the frequency domain bandwidth of the first synchronization signal and the frequency domain bandwidth of the second synchronization signal; Association relationship between the transmission mode of the first synchronization signal and the transmission mode of the second synchronization signal; Time offset information between the first synchronization signal and the second synchronization signal.

29. A synchronization signal transmission device, wherein, Includes: A detection module, configured to detect the first synchronization signal based on a first mode and obtain first synchronization information; A determination module, configured to determine second synchronization information associated with a second synchronization signal based on the first synchronization information; The detection module is further configured to detect the second synchronization signal based on the second synchronization information and a second mode; wherein a peak power consumption corresponding to the first mode is less than a peak power consumption corresponding to the second mode.

30. The apparatus according to claim 29, wherein The first synchronization signal adopts any one of the following waveforms or modulation methods: amplitude shift keying (ASK); frequency shift keying (FSK); on-off keying (OOK) superimposed on orthogonal frequency division multiplexing (OFDM); OFDM.

31. A synchronization signal transmission device, wherein, Comprising: A transmission module, configured to transmit a first synchronization signal and a second synchronization signal; wherein the first synchronization signal carries first synchronization information, and the first synchronization information is used to determine second synchronization information for detecting the second synchronization signal.

32. The device according to claim 31, wherein, The first synchronization signal adopts any one of the following waveforms or modulation methods: amplitude shift keying (ASK); frequency shift keying (FSK); on-off keying (OOK) superimposed on orthogonal frequency division multiplexing (OFDM); OFDM.

33. A terminal, wherein, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the synchronization signal transmission method according to any one of claims 1 to 16 are implemented.

34. A network-side device, wherein, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the synchronization signal transmission method according to any one of claims 17 to 28 are implemented.

35. A readable storage medium, wherein, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the synchronization signal transmission method according to any one of claims 1 to 28 are implemented.

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