Tracking signal processing method and apparatus, terminal and network side device

Abstract

The present application belongs to the technical field of communication and discloses a tracking signal processing method and apparatus, a terminal and a network side device. The tracking signal processing method in the embodiments of the present application comprises: a terminal receiving a first tracking signal, wherein the first tracking signal comprises at least one of a first synchronization signal and PBCH block (SSB) and a first measurement signal; and the terminal performing measurement on the basis of the first tracking signal. The first measurement signal comprises at least one of the following: M-1 repetition(s) of a first signal in the first SSB in a time domain, M being an integer greater than 1; and a second signal, wherein the first signal refers to at least some signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

Description

Tracking signal processing method, device, terminal and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410037721.3 filed in China on January 10, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a tracking signal processing method, device, terminal and network-side equipment. Background Art

[0004] During the initial access phase of the New Radio (NR) network, terminals perform time-frequency synchronization based on the Synchronization Signal and PBCH block (SSB). However, due to the small bandwidth occupied by SSB, and the small time domain symbols and time spans, terminals cannot obtain good time-frequency tracking quality during initial access and random access, resulting in poor downlink signal reception performance. Therefore, it is necessary to consider enhancing the time-frequency tracking performance of SSB in future communication systems. Summary of the Invention

[0005] The embodiments of the present application provide a tracking signal processing method, apparatus, terminal, and network-side equipment, which can solve the problem that the terminal cannot obtain good time-frequency tracking quality during initial access, random access, and other stages, resulting in poor reception performance of the terminal downlink signal.

[0006] In a first aspect, a method for processing a tracking signal is provided, comprising:

[0007] The terminal receives a first tracking signal, where the first tracking signal includes at least one of a first synchronization signal block (SSB) and a first measurement signal;

[0008] The terminal performs measurement based on the first tracking signal;

[0009] The first measurement signal includes at least one of the following:

[0010] The first signal of the first SSB is repeated M-1 times in the time domain, where M is an integer greater than 1;

[0011] Second signal;

[0012] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0013] In a second aspect, a method for processing a tracking signal is provided, comprising:

[0014] The network-side device sends a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following:

[0015] The first signal of the first SSB is repeated M-1 times in the time domain, where M is a positive integer greater than 1;

[0016] Second signal;

[0017] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0018] In a third aspect, a tracking signal processing device is provided, comprising:

[0019] a receiving module, configured to receive a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal;

[0020] a measurement module, configured to perform measurement based on the first tracking signal;

[0021] The first measurement signal includes at least one of the following:

[0022] The first signal of the first SSB is repeated M-1 times in the time domain, where M is an integer greater than 1;

[0023] Second signal;

[0024] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0025] In a fourth aspect, a tracking signal processing device is provided, comprising:

[0026] A sending module is configured to send a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; and the first measurement signal includes at least one of the following:

[0027] The first signal of the first SSB is repeated M-1 times in the time domain, where M is a positive integer greater than 1;

[0028] Second signal;

[0029] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0030] 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.

[0031] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive a first tracking signal, the first tracking signal including at least one of a first SSB and a first measurement signal; the processor is configured to perform measurement based on the first tracking signal; wherein the first measurement signal includes at least one of the following:

[0032] The first signal of the first SSB is repeated M-1 times in the time domain, where M is an integer greater than 1;

[0033] Second signal;

[0034] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0035] 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.

[0036] In an eighth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is configured to send a first tracking signal, the first tracking signal including at least one of a first SSB and a first measurement signal; the first measurement signal including at least one of the following:

[0037] The first signal of the first SSB is repeated M-1 times in the time domain, where M is a positive integer greater than 1;

[0038] Second signal;

[0039] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0044] In an embodiment of the present application, the terminal receives a first tracking signal sent by a network-side device, and then performs measurement based on the first tracking signal; wherein, the first tracking signal includes at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain, and the terminal can perform measurement based on the time-domain enhanced first tracking signal, so that terminals in connected and non-connected states can better perform time-frequency tracking, especially enabling the terminal to obtain better time-frequency tracking accuracy during initial access and random access stages, which helps to improve the downlink transmission performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0046] FIG2 is a flow chart of a tracking signal processing method provided in an embodiment of the present application;

[0047] FIG3a is a schematic diagram of a first SSB in a tracking signal processing method provided in an embodiment of the present application;

[0048] FIG3 b is a second schematic diagram of a first SSB in a tracking signal processing method provided in an embodiment of the present application;

[0049] FIG3 c is a third schematic diagram of the first SSB in a tracking signal processing method provided in an embodiment of the present application;

[0050] FIG3 d is a fourth schematic diagram of the first SSB in a tracking signal processing method provided in an embodiment of the present application;

[0051] FIG3e is a fifth schematic diagram of the first SSB in a tracking signal processing method provided in an embodiment of the present application;

[0052] FIG4 is a flowchart of another tracking signal processing method provided in an embodiment of the present application;

[0053] FIG5 is a structural diagram of a tracking signal processing device provided in an embodiment of the present application;

[0054] FIG6 is a structural diagram of another tracking signal processing device provided in an embodiment of the present application;

[0055] FIG7 is a structural diagram of a communication device provided in an embodiment of the present application;

[0056] FIG8 is a structural diagram of a terminal provided in an embodiment of the present application;

[0057] FIG9 is a structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0058] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0063] 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.

[0064] For better understanding, the relevant concepts involved in the embodiments of this application are explained below.

[0065] Synchronous signal block:

[0066] In the NR system, the synchronization signal and PBCH block (SSB, also known as the synchronization signal block) are used for initial access. Among them, the SSB consists of the primary synchronization signal (PSS), the secondary synchronization signal (SSS), the physical broadcast channel (PBCH), and the demodulation reference signal (DMRS) of the PBCH. PSS and SSS are used for coarse synchronization of time and frequency, PBCH is used to carry the broadcast message master information block (MIB), and the DMRS of the PBCH is used for demodulation of the PBCH. In addition, the entire SSB occupies 4 orthogonal frequency division multiplex (OFDM) symbols in the time domain and a maximum of 20 resource blocks (RB) in the frequency domain. Due to the limited time and frequency resources occupied by SSB, only relatively preliminary coarse time and frequency synchronization can be performed based on SSB.

[0067] When the terminal receives the SSB, the terminal can first detect the PSS sequence and obtain the physical cell identifier (ID) according to the sequence correlation. And obtain preliminary time-frequency synchronization; then detect SSS and obtain the physical cell ID based on sequence correlation Thus, the complete physical cell ID (Physical Cell Identifier (PCI)) is obtained, that is, The terminal can further adjust the frequency offset based on the PSS and SSS, and then detect the DMRS of the PBCH to perform channel estimation and demodulate the PBCH.

[0068] In an embodiment of the present application, the synchronization signal block may include at least one of the following: a synchronization signal, a broadcast signal, a broadcast channel (PBCH), a demodulation reference signal, a reference signal / synchronization signal for time domain and / or frequency domain parameter tracking, a broadcast channel for other system messages, etc.

[0069] The PSS and SSS include at least one of the following: a synchronization sequence, a synchronization pilot, and a reference signal / synchronization signal for time domain and / or frequency domain parameter tracking.

[0070] The PBCH includes at least one of the following: a synchronization channel, a demodulation reference signal, a broadcast channel for a master information block, and a broadcast channel for other system messages.

[0071] Quasi co-location (QCL) reference:

[0072] In the NR system, QCL refers to the average delay, delay spread, Doppler frequency offset, Doppler spread, and spatial reception parameters of the channel experienced by the symbols on a certain antenna port, which can be inferred through another antenna port.

[0073] NR has designed four different types of QCL reference relationships to cope with different transmission scenarios. The specific QCL reference types qcl-Type are as follows:

[0074] 1) Type A: {Doppler frequency deviation, Doppler spread, average delay, delay spread}

[0075] 2) Type B: {Doppler frequency deviation, Doppler spread}

[0076] 3) Type C: {Doppler frequency deviation, average delay}

[0077] 4) TypeD: {space receiving parameters}

[0078] Among them, before the Radio Resource Control (RRC) connection state, the reference source of the QCL reference TypeA transmitted by the physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH) is SSB. After the terminal enters the RRC connection state, in order to obtain more refined time-frequency tracking performance, the network side can configure the tracking reference signal (TRS) for precise time-frequency synchronization. At this time, the reference source of the QCL reference TypeA transmitted by PDCCH and PDSCH is TRS.

[0079] During the initial access phase of NR, the time-frequency synchronization accuracy based on SSB is relatively coarse due to the small bandwidth occupied by SSB and the small number of time-domain symbols occupied. TRS is generally used for precise time-frequency synchronization after the terminal enters the RRC connection state, which makes it impossible for the terminal to obtain good time-frequency tracking quality during the initial access and random access phases, thereby limiting the reception performance of the downlink signal. To address these issues, the embodiments of the present application propose a method for processing tracking signals.

[0080] The tracking signal processing method, apparatus, and related devices provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

[0081] Please refer to Figure 2, which is a flow chart of a tracking signal processing method provided by an embodiment of the present application, wherein the method is applied to a terminal. As shown in Figure 2, the method includes the following steps:

[0082] Step 201: The terminal receives a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal.

[0083] Step 202: The terminal performs measurement based on the first tracking signal.

[0084] The first measurement signal includes at least one of the following:

[0085] The first signal of the first SSB is repeated M-1 times in the time domain, where M is an integer greater than 1;

[0086] Second signal;

[0087] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0088] Optionally, the first signal includes at least one of the following:

[0089] Synchronization signal, the synchronization signal including at least one of the following: PSS, SSS, other synchronization signals;

[0090] PBCH, including PBCH DMRS;

[0091] DMRS of PBCH;

[0092] Broadcast channel for other system messages.

[0093] In an embodiment of the present application, the first measurement signal can be understood as an enhanced signal of the first SSB in the time domain. The first SSB can be understood as an SSB used for initial access of the terminal. The terminal may receive the first SSB, first perform conventional initial access (for example, including demodulation of the broadcast message), and then measure the first measurement signal. Alternatively, the terminal may also receive the first SSB, first perform preliminary time-frequency synchronization, then measure the first measurement signal to obtain precise time-frequency synchronization, and then perform initial access. Alternatively, after receiving the first SSB, the terminal may first determine the information of the first measurement signal, and then jointly measure the first SSB and the first measurement signal.

[0094] Exemplarily, the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain. For example, the first signal may be all signals (channels) in the first SSB, that is, the first measurement signal includes M-1 repetitions of all signals (channels) in the first SSB in the time domain. Alternatively, the first signal may also be a partial signal in the first SSB. For example, in order to be able to measure Doppler spread more accurately, it is mainly with the help of synchronization signals on more symbols. Therefore, in some scenarios, only the synchronization signal in the first SSB may be repeated, that is, the first signal is only the synchronization signal in the first SSB, and the first measurement signal also includes M-1 repetitions of the synchronization signal in the first SSB in the time domain. At this time, there is no need to repeat other signals in the first SSB, thereby reducing the overall SSB resource occupancy overhead of the network.

[0095] Please refer to FIG. 3 a , which shows an example of 2 repetitions (ie, M=3), wherein only the synchronization signal in the first SSB is repeated in the second repetition (repetition # 2 ).

[0096] Alternatively, please refer to Figure 3b, which shows an example of 4 repetitions (i.e., M=5), wherein the second repetition (repetition #2) only repeats the synchronization signal in the first SSB, the third repetition (repetition #3) repeats all signals in the first SSB, and the fourth repetition (repetition #4) only repeats the synchronization signal in the first SSB.

[0097] It should be noted that the repetition pattern of M-1 repetitions may be agreed upon by default in the protocol, or may be configured by a network-side device, for example, indicated in a broadcast channel.

[0098] In an embodiment of the present application, the first tracking signal may include a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain, thereby increasing the overall time span of the first tracking signal through the first measurement signal, that is, enhancing the first SSB in the time domain, thereby increasing the time span of the synchronization signal used to measure Doppler spread, effectively improving the time-frequency estimation performance of the terminal, and thus improving the downlink transmission performance of the terminal.

[0099] It should be noted that the first signals in the M-1 repetitions may be different. For example, part of the signal in one repetition may be PSS and SSS, while part of the signal in another repetition may be SSS.

[0100] Optionally, the M-1 repetitions of the first signal in the time domain satisfy at least one of the following:

[0101] The SSB index corresponding to the M-1 repetitions is the same as the index of the first SSB, wherein the index is an SSB index;

[0102] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0103] At least some of the signals in the repeated signal group correspond to the same QCL reference relationship, wherein the QCL reference relationship includes but is not limited to a beam and a spatial filter;

[0104] The signals in the repeated signal group are spaced apart by X time domain units in the time domain, where X≥0, and the time domain unit may be a symbol or a time slot, etc.;

[0105] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the time domain.

[0106] In an embodiment of the present application, when the M-1 repetitions of the first signal in the time domain meet at least one of the above items, the terminal can jointly process the measurement results of the M-1 repetitions of the first signal in the time domain, thereby improving the performance of time-frequency tracking.

[0107] It should be noted that, for at least some of the signals in the repeated signal group, the QCL reference relationship corresponding to the same signal may be indicated by the network-side device, or it may be agreed by the protocol by default that the QCL reference relationship corresponding to the signals in the repeated signal group is the same. For example, the protocol by default agrees that the QCL reference relationship corresponding to multiple repetitions is the same with an interval of N (N≤M-1) repetitions, so that the terminal can perform more accurate time-frequency estimation based on the measurement results of these repetitions.

[0108] In addition, the QCL reference relationships corresponding to at least some of the signals in the repeated signal group may also be different, so that the number of beams transmitting SSBs can be increased under the same SSB index. In this case, how to utilize the measurement results over multiple repetitions depends on the implementation of the terminal, or it can be determined by some means that the QCL reference relationships corresponding to some of the signals in the repeated signal group remain the same.

[0109] In some embodiments, the signals in the repeated signal group are separated by one time slot in the time domain, i.e., the signals in the repeated signal group occupy consecutive time slots in the time domain. As shown in FIG3c , assuming that one time slot occupies 14 symbols, the interval between the PSS (synchronization signal 1) and the SSS (synchronization signal 2) in the first SSB is 4 symbols, and the number of repetitions of the synchronization signal in the first SSB is 1, then the PSS and SSS in the first SSB, together with the PSS and SSS in the repeated signal, form a synchronization signal set with a maximum time span of 18 symbols, which is used for Doppler spread estimation.

[0110] In some embodiments, the signals in the repeated signal group are completed within N time slots, and the signals in the repeated signal group are spaced X symbols apart in the time domain. For example, assuming that a time slot occupies 14 symbols, the first SSB occupies 4 symbols, and there is a 2-symbol interval between the PSS and SSS, the protocol defaults to multiple repetitions being completed within N = 2 time slots, and the first SSB is repeated a total of 4 times. In this case, the 4 PSSs and 4 SSSs in the 4 repetitions together constitute a synchronization signal set for Doppler spread estimation.

[0111] Optionally, when the terminal performs measurement based on the first tracking signal, the first measurement signal includes L repetitions of the first signal in the time domain, where L≤M-1. That is, although the first signal in the first SSB is repeated M-1 times in the time domain, the terminal does not necessarily need to perform measurement in conjunction with the M-1 repetitions. The terminal can perform measurement based on the L repetitions, thereby helping to reduce the measurement consumption of the terminal. The determination of the L repetitions can be a default agreement of the protocol, or configured by the network side device, or determined by the terminal according to its capabilities.

[0112] In addition, when the number of the first SSBs is multiple (the indexes of the multiple first SSBs are different), the terminal may receive the first tracking signal in the following two ways:

[0113] 1) The terminal first receives multiple first SSBs in sequence, and then receives first measurement signals corresponding to each of the multiple first SSBs. One first measurement signal is M-1 repetitions of the first signal in the first SSB in the time domain. That is, the network-side device first transmits the first SSBs in sequence, and then repeats the first signal in the first SSB and transmits the repeated signal.

[0114] 2) The terminal receives a first tracking signal, which includes multiple first SSBs and first measurement signals corresponding to each of the multiple first SSBs. One first measurement signal is M-1 repetitions of the first signal in a first SSB in the time domain; that is, the network side device generates each first SSB and a repetition signal of the first signal in each first SSB in sequence, and after transmitting the previous first SSB and the repetition signal of the first signal in the first SSB, it transmits the next first SSB and the repetition signal of the first signal in the first SSB.

[0115] For example, assuming that there are 4 first SSBs, indexed as SSB#1, SSB#2, SSB#3, and SSB#4, and each first SSB is repeated twice, then according to the first transmission method, the transmission mode of these first SSBs is: SSB#1, SSB#2, SSB#3, SSB#4, SSB#1, SSB#2, SSB#3, SSB#4; according to the second transmission method, the transmission mode of these first SSBs is: SSB#1, SSB#1, SSB#2, SSB#2, SSB#3, SSB#3, SSB#4, SSB#4.

[0116] In this way, the transmission method of the first SSB and the first measurement signal (repetition of the first signal in the first SSB) between the terminal and the network side device is more flexible.

[0117] In this embodiment of the present application, the first measurement signal may further include a second signal, where the second signal is a signal different from the first signal in the first SSB, for example, the second signal is a second SSB. In this way, the first tracking signal may include the first SSB and the second signal, and the terminal performs measurement in conjunction with the first SSB and the second signal. This also helps improve the accuracy of time-frequency estimation by the terminal.

[0118] Optionally, the first tracking signal may include only the first SSB. For example, the first signal of the first SSB is time-domain extended, for example, occupying multiple time slots and including multiple synchronization signals, that is, the time span of the first signal in the first SSB is increased. In this case, measurement based on the first SSB also helps to improve the time-frequency estimation accuracy of the terminal.

[0119] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0120] including at least two synchronization signals;

[0121] The at least two synchronization signals occupy at least two time slots;

[0122] The synchronization signal and PBCH are in different time slots;

[0123] The PBCH occupies at least one time slot.

[0124] For example, the first SSB includes a PSS and multiple SSSs, thereby improving the performance of time-frequency estimation. Assume that the first SSB occupies two time slots, each of which contains at least two synchronization signals. For example, the first time slot contains a PSS and SSS, and the second time slot contains two SSSs. Thus, the first SSB also includes at least two synchronization signals, effectively improving the performance of terminal time-frequency estimation.

[0125] For another example, the first SSB occupies two time slots, where PSS and SSS occupy different time slots respectively; or each time slot has at least two synchronization signals, for example, there is a PSS and SSS in the first time slot, and two SSS in the second time slot, thereby achieving a synchronization signal distribution with a larger time span.

[0126] For another example, the first SSB occupies 2 time slots, where PSS and SSS are in the first time slot, and PBCH and PBCH's DMRS are in the second time slot. At this time, the combination of PSS, SSS and DMRS can also be used for joint measurement to effectively improve the terminal's time-frequency estimation accuracy.

[0127] Optionally, when there are multiple first SSBs, multiple first SSBs share all or part of the signal. For example, multiple first SSBs share all or part of the synchronization signal. Assuming there are two first SSBs: SSB#1 and SSB#2, where the interval between the PSS and SSS of SSB#1 is large, and the symbol position of SSS is located within SSB#2, then the SSS of SSB#1 can be used as the SSS or PSS of SSB#2, that is, SSB#1 and SSB#2 share part of the synchronization signal, which can help improve the time-frequency estimation accuracy of the terminal. It should be noted that in this case, it is necessary to ensure that the channel characteristics of the two SSBs are consistent, such as quasi-co-addressing.

[0128] In an embodiment of the present application, the terminal receives a first tracking signal sent by a network-side device, and then performs measurement based on the first tracking signal; wherein, the first tracking signal includes at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain, and the terminal can perform measurement based on the time-domain enhanced first tracking signal, so that terminals in connected and non-connected states can better perform time-frequency tracking, especially enabling the terminal to obtain better time-frequency tracking accuracy during initial access and random access stages, which helps to improve the downlink transmission performance of the terminal.

[0129] Optionally, when the first tracking signal includes at least two first SSBs and a signal collision occurs between the at least two first SSBs, the method further includes:

[0130] The terminal discards a first discard signal of at least one first SSB of the at least two first SSBs, where the first discard signal includes a colliding signal, or all signals.

[0131] Specifically, the terminal discarding a first discard signal of at least one first SSB of the at least two first SSBs includes any one of the following:

[0132] The terminal discards the colliding signal in the first SSB of any two colliding first SSBs of the at least two first SSBs, and retains the signal in the last first SSB;

[0133] The terminal discards all signals of the first SSB of any two colliding first SSBs among the at least two first SSBs, and retains the signal of the latter first SSB;

[0134] The terminal discards a colliding signal in a previous first SSB of any two colliding first SSBs of the at least two first SSBs, and remaps the discarded signal on a specific symbol of the first SSB according to a preset rule;

[0135] The terminal discards the colliding signal in the latter of any two colliding first SSBs of the at least two first SSBs, and retains the signal in the former first SSB;

[0136] The terminal discards all signals of the latter first SSB of any two collided first SSBs among the at least two first SSBs, and retains the signal of the former first SSB;

[0137] The terminal discards the colliding signal in the latter first SSB of any two colliding first SSBs among the at least two first SSBs, and remaps the discarded signal on a specific symbol of the first SSB according to a preset rule.

[0138] For example, assuming that when the signals in the two first SSBs (SSB#1 and SSB#2) collide, any of the following methods may be used for processing:

[0139] 1) Discard the signal that collides in SSB#1 and retain the signal in SSB#2;

[0140] 2) Discard all signals in SSB#1 and retain the signal in SSB#2;

[0141] 3) discard the colliding signal in SSB#1 and remap the discarded signal on a specific symbol of SSB#1 according to a preset rule;

[0142] 4) Keep the signal of SSB#1 and discard the signal that collides in SSB#2;

[0143] 5) Keep the signal in SSB#1 and discard all the signals in SSB#2;

[0144] 6) Discard the colliding signal in SSB#2 and remap the discarded signal on a specific symbol of SSB#2 according to a preset rule.

[0145] For example, for method 3), assume that the PSS and SSS in SSB#1 are separated by 8 symbols, but at this time SSS collides with SSB#2. At this time, the SSS in SSB#1 can be discarded, and then the SSS can be remapped 4 symbols after the PSS in SSB#1 according to the preset rules.

[0146] In this way, in some cases, after the first SSB is enhanced in the time domain, signal collision may occur between the first SSBs. This application clarifies the processing method for the first SSB where signal collision occurs, so that the terminal can better perform measurements based on the first SSB and ensure the terminal's time-frequency estimation performance.

[0147] In this embodiment of the present application, the first measurement signal may include a second signal. Optionally, the second signal includes at least one of the following:

[0148] Other synchronization signals different from the synchronization signal in the first SSB, such as PSS (different from the PSS sequence in the first SSB), SSS (different from the SSS sequence in the first SSB), other synchronization sequences, etc.;

[0149] Other reference signals different from the reference signal in the first SSB, such as TRS, DMRS of other signals, etc.;

[0150] Second SSB.

[0151] It should be noted that, when the first measurement signal includes the second signal, the terminal may perform measurement based on the first tracking signal in the following two ways:

[0152] 1) combining the first SSB and the second signal into a first tracking signal, and performing measurement based on the first tracking signal;

[0153] 2) First perform a preliminary measurement based on the first SSB, and then perform further fine measurement based on the second signal.

[0154] Regardless of the first or second method mentioned above, the terminal can perform measurements by combining the first SSB and the second signal, which helps to improve the time-frequency estimation accuracy of the terminal and is beneficial to improving the downlink reception performance of the terminal.

[0155] Optionally, the second SSB satisfies at least one of the following:

[0156] The second SSB does not include a PBCH;

[0157] The second SSB includes at least one synchronization signal.

[0158] It should be noted that whether the second SSB includes PBCH can be a protocol agreement or a network side equipment configuration.

[0159] When at least one synchronization signal is included in the second SSB, the at least one synchronization signal may include at least one of the following: one or more PSSs, one or more SSSs, and one or more other synchronization signals.

[0160] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0161] There is a time domain interval between each synchronization signal of the at least two synchronization signals, for example, the time domain interval between each synchronization signal of the at least two synchronization signals is equal;

[0162] The at least two synchronization signals occupy at least one time slot, that is, occupy one or more time slots;

[0163] The at least two synchronization signals occupy the same frequency domain resources.

[0164] For example, please refer to Figure 3d, which shows an example of the second SSB. In order to ensure the performance of time-frequency tracking, the second SSB occupies two consecutive time slots (time slot #n and time slot #n+1), and there is a time domain interval with the first SSB (occupying time slot #1). The terminal can determine the time domain position of the second SSB based on the interval. In addition, there are 4 synchronization signals in the second SSB, and the synchronization signal can be any combination of PSS, SSS, and other synchronization signals, and its bandwidth is greater than the bandwidth of the synchronization signal in the first SSB. In addition, the broadcast channel in the second SSB is optional, it may exist or not, and when it exists, it can be used to transmit PBCH or other broadcast messages. Of course, it can also be a channel for other purposes instead of a broadcast channel.

[0165] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0166] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0167] The second SSB has the same QCL reference relationship as the first SSB, the QCL reference relationship including but not limited to a beam and a spatial filter;

[0168] The second SSB has the same index as the first SSB, and the index may be an SSB index;

[0169] The second SSB has the same cell identifier as the first SSB, and the cell identifier includes at least one of a first ID and a second ID. For example, the first ID corresponding to the second SSB is the same as the first ID corresponding to the first SSB, or the second ID corresponding to the second SSB is the same as the second ID corresponding to the first SSB, or both the first ID and the second ID corresponding to the second SSB are the same as the first ID and the second ID corresponding to the first SSB.

[0170] The second SSB is aligned with the preset frequency domain position of the first SSB, for example, the frequency domain position may be a subcarrier or an RB, and the preset frequency domain position may be the first RB, or the middle RB or the last RB, for example, the second SSB is aligned with the first SSB on the first RB.

[0171] It should be noted that when the bandwidth of the second SSB is greater than the bandwidth of the first SSB, the performance of the terminal based on the second SSB measurement is better, but the resource overhead may be larger; when the bandwidth of the second SSB is equal to the bandwidth of the first SSB, the terminal can perform joint measurement based on the first signal and the second SSB in the first SSB; when the bandwidth of the second SSB is less than the bandwidth of the first SSB, the terminal performs measurement based on the second SSB, which helps the terminal reduce resource overhead.

[0172] Optionally, in this embodiment of the present application, the second signal further satisfies at least one of the following:

[0173] In the case where there are multiple second signals, the time domain intervals between the multiple second signals are equal to the time domain intervals between synchronization signals in the first SSB;

[0174] The second signal is separated from the first SSB by at least one time domain unit.

[0175] For example, when the terminal performs measurement jointly with the first SSB and the second signal, if the time domain interval between the two second signals is agreed to be the same as the time domain interval between the PSS and SSS in the first SSB, it is beneficial to simplify the terminal's receiving complexity and improve the terminal measurement performance.

[0176] In an embodiment of the present application, in order to ensure that the time span of the signal composed of the first SSB and the second signal (for example, the first tracking signal) is sufficient, the time domain interval between the second signal and the first SSB can be agreed upon, for example, at least one time domain unit can be separated, and the time domain unit can be a time slot, a symbol, etc.

[0177] It should be noted that in some cases, the second signal may collide with the first SSB, and in this case it is necessary to determine how the terminal handles it.

[0178] Optionally, when the second signal overlaps with the first SSB on the same symbol, the method further includes:

[0179] The terminal discards a second discard signal of at least one of the second signal or the first SSB, where the second discard signal includes a signal on an overlapping symbol or an overlapping part.

[0180] Exemplarily, when the second signal overlaps with the first SSB on the same symbol, the terminal may process the signal in at least one of the following ways:

[0181] 1) discarding signals on overlapping symbols in the first SSB;

[0182] 2) discarding signals on overlapping symbols in the second signal;

[0183] 3) discarding the overlapping portion of the second signal;

[0184] 4) Discard the overlapping part in the first SSB.

[0185] In this way, the terminal's processing method when the second signal and the first SSB overlap on the same symbol is clarified, thereby ensuring the performance of the terminal based on the joint measurement of the second signal and the first SSB.

[0186] In the embodiment of the present application, the method further includes:

[0187] The terminal determines a measurement window length of the first tracking signal, where the measurement window length is related to at least one of the following:

[0188] a period of the first SSB;

[0189] a period of a mapping cycle from the first SSB to a random access channel occasion (RO);

[0190] a period of association between the first SSB and the RO (RO association period);

[0191] a period of the first SSB to RO association pattern (RO association pattern period);

[0192] The period of the physical uplink shared channel (PUSCH) from the first SSB to the configured grant (CG);

[0193] Physical Random Access Channel (PRACH) configuration period;

[0194] Determine the period of the RO group used for PRACH repetition.

[0195] In this way, the terminal can determine the measurement window length of the first tracking signal according to at least one of the above items, thereby effectively ensuring the performance of the terminal in performing measurements based on the first tracking signal.

[0196] Optionally, in this embodiment of the present application, the transmission resource of the first measurement signal or the first SSB (which may also be understood as the first tracking signal) includes at least one of the following:

[0197] at least a portion of a transmission opportunity of the first SSB;

[0198] At least part of the transmission frequency domain resources of the first SSB.

[0199] For example, please refer to Figure 3e. Time domain expansion is not performed on transmission timing #1 and transmission timing #3 of the first SSB, but on transmission timing #2, a time domain unit is separated between the synchronization signal 2 and the synchronization signal 3 in the first SSB, that is, time domain expansion is performed on transmission timing #2.

[0200] It should be noted that the transmission resource of the first measurement signal may be determined by a network-side device configuration or a protocol default agreement.

[0201] Optionally, the method further includes:

[0202] The terminal determines, by using a first parameter of the first SSB, a transmission resource of the first measurement signal or the first SSB; wherein the first parameter includes at least one of the following:

[0203] Sequence-related parameters of the first SSB, such as a synchronization sequence of the first SSB or a scrambling method of the first SSB;

[0204] frequency domain parameters of the first SSB;

[0205] The time domain parameters of the first SSB, for example, the time domain parameters are frame information, time slot information, sub-window information, etc.

[0206] For example, taking PSS as an example, it can be assumed that the sequence of the PSS of the first SSB on different transmission times or different transmission resources is different, then the terminal can determine the transmission resource of the first SSB currently transmitted through the sequence of PSS.

[0207] It can be understood that after the terminal performs measurement based on the first tracking signal, the terminal obtains more accurate time and frequency synchronization. At this time, the QCL reference for subsequent transmission can be the first SSB and / or the first measurement signal.

[0208] Optionally, the method further includes:

[0209] Starting from a target time after the terminal receives the first tracking signal, the terminal receives downlink transmission using at least one of the first SSB and the first measurement signal as a QCL reference.

[0210] Among them, the downlink transmission includes but is not limited to PDSCH, PDCCH, and Channel State Information Reference Signal (CSI-RS). For example, taking PDSCH as an example, from the target time after the terminal receives the first tracking signal, its Type A QCL reference source is the first SSB, or the first measurement signal, or the first SSB and the first measurement signal (such as a set of the first SSB and the second signal). It should be noted that the terminal can first access (perform cell search) on the first SSB, and then perform time-frequency precision synchronization on the first measurement signal, thereby effectively improving the downlink transmission performance of the terminal.

[0211] Optionally, in an embodiment of the present application, the method further includes:

[0212] The terminal determines, based on at least one of the following:

[0213] the index of the first SSB;

[0214] The synchronization signal in the first SSB includes the PSS and SSS, such as the sequence, bandwidth, frequency, etc. corresponding to the PSS and SSS;

[0215] a PBCH DMRS in the first SSB;

[0216] the MIB in the first SSB;

[0217] Layer 1 load of PBCH;

[0218] System frame number;

[0219] Other system information, such as SIB 1;

[0220] Control resource set (CORESET) 0;

[0221] Search space 0;

[0222] Random access message 2 or message B;

[0223] Random access message 4;

[0224] Paging Early Indication (PEI);

[0225] Downlink Control Information (DCI) for scheduling paging.

[0226] The relevant parameters of the first measurement signal or the first SSB include at least one of the following:

[0227] 1) a repetition parameter of the first signal of the first SSB in the frequency domain, the repetition parameter including at least one of the following: the number of repetitions (i.e., M-1), the interval between two repetitions, the time domain position of the repetition (e.g., whether the time domain position of the repetition is before or after the time domain position of the first SSB), and the repetition pattern;

[0228] 2) Parameters of the second signal, including the time domain position of the second signal, such as the interval between the time domain positions of the second signal and the first signal;

[0229] 3) The parameters of the second SSB include at least one of the following: the time-frequency position of the second SSB, the period of the second SSB, and the power of the second SSB.

[0230] In an embodiment of the present application, the terminal can determine the relevant parameters of the first measurement signal or the first SSB based on the above method, so that the terminal can better perform time-frequency estimation based on the first measurement signal and / or the first SSB (that is, the first tracking signal), thereby effectively improving the downlink transmission performance of the terminal.

[0231] Please refer to Figure 4, which is a flowchart of another tracking signal processing method provided by an embodiment of the present application, and the method is applied to a network-side device. As shown in Figure 4, the method includes the following steps:

[0232] Step 401: The network-side device sends a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal.

[0233] The first measurement signal includes at least one of the following:

[0234] The first signal of the first SSB is repeated M-1 times in the time domain, where M is a positive integer greater than 1;

[0235] Second signal;

[0236] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0237] Optionally, the first signal includes at least one of the following:

[0238] Synchronous signal;

[0239] PBCH;

[0240] DMRS of PBCH;

[0241] Broadcast channel for other system messages.

[0242] Optionally, the M-1 repetitions of the first signal in the time domain satisfy at least one of the following:

[0243] The SSB index corresponding to the M-1 repetitions is the same as the index of the first SSB;

[0244] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0245] At least some of the signals in the repeated signal group correspond to the same quasi-co-site QCL reference relationship;

[0246] The signals in the repetitive signal group are separated by X time domain units in the time domain, where X ≥ 0;

[0247] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the time domain.

[0248] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0249] including at least two synchronization signals;

[0250] The at least two synchronization signals occupy at least two time slots;

[0251] The synchronization signal and PBCH are in different time slots;

[0252] The PBCH occupies at least one time slot.

[0253] Optionally, when there are multiple first SSBs, the multiple first SSBs share all or part of the signal.

[0254] In the embodiment of the present application, when there are multiple first SSBs, the network side device may send the first tracking signal in the following two ways:

[0255] 1) The terminal first receives multiple first SSBs in sequence, and then receives first measurement signals corresponding to each of the multiple first SSBs. One first measurement signal is M-1 repetitions of the first signal in the first SSB in the time domain. That is, the network-side device first transmits the first SSBs in sequence, and then repeats the first signal in the first SSB and transmits the repeated signal.

[0256] 2) The terminal receives a first tracking signal, which includes multiple first SSBs and first measurement signals corresponding to each of the multiple first SSBs. One first measurement signal is M-1 repetitions of the first signal in a first SSB in the time domain; that is, the network side device generates each first SSB and a repetition signal of the first signal in each first SSB in sequence, and after transmitting the previous first SSB and the repetition signal of the first signal in the first SSB, it transmits the next first SSB and the repetition signal of the first signal in the first SSB.

[0257] Optionally, when the first tracking signal includes at least two first SSBs and a signal collision occurs between the at least two first SSBs, the method further includes:

[0258] The network side device discards (or does not send) a first discard signal of at least one of the at least two first SSBs, where the first discard signal includes a colliding signal or all signals.

[0259] Specifically, the network side device discards a first discard signal of at least one first SSB of the at least two first SSBs, including any one of the following:

[0260] The network side device discards the collision signal in the first SSB of any two colliding first SSBs of the at least two first SSBs, and retains the signal in the last first SSB;

[0261] The network side device discards all signals of the first SSB of any two colliding first SSBs among the at least two first SSBs, and retains the signal of the latter first SSB;

[0262] The network side device discards the colliding signal in the previous first SSB of any two colliding first SSBs of the at least two first SSBs, and remaps the discarded signal on a specific symbol of the first SSB according to a preset rule;

[0263] The network side device discards the signal of the collision in the latter of any two colliding first SSBs of the at least two first SSBs, and retains the signal in the former first SSB;

[0264] The network side device discards all signals of the latter first SSB of any two collided first SSBs of the at least two first SSBs, and retains the signal of the former first SSB;

[0265] The network side device discards the signal that collides in the latter first SSB of any two colliding first SSBs of the at least two first SSBs, and remaps the discarded signal on a specific symbol of the first SSB according to a preset rule.

[0266] In this way, the method for handling the first SSB in which a signal collision occurs is clarified, so that the network side device can better perform the transmission of the first SSB.

[0267] In this embodiment of the present application, the first measurement signal may include a second signal. Optionally, the second signal includes at least one of the following:

[0268] Other synchronization signals different from the synchronization signal in the first SSB;

[0269] a reference signal other than the reference signal in the first SSB;

[0270] Second SSB.

[0271] Optionally, the second SSB satisfies at least one of the following:

[0272] The second SSB does not include a PBCH;

[0273] The second SSB includes at least one synchronization signal.

[0274] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0275] There is a time domain interval between each of the at least two synchronization signals;

[0276] The at least two synchronization signals occupy at least one time slot;

[0277] The at least two synchronization signals occupy the same frequency domain resources.

[0278] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0279] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0280] The second SSB has the same QCL reference relationship as the first SSB;

[0281] The second SSB has the same index as the first SSB;

[0282] The cell identifier of the second SSB is the same as that of the first SSB;

[0283] The second SSB is aligned with a preset frequency domain position of the first SSB.

[0284] Optionally, the second signal satisfies at least one of the following:

[0285] In the case where there are multiple second signals, the time domain intervals between the multiple second signals are equal to the time domain intervals between synchronization signals in the first SSB;

[0286] The second signal is separated from the first SSB by at least one time domain unit.

[0287] In this embodiment of the present application, when the second signal overlaps with the first SSB on the same symbol, the method further includes:

[0288] The network side device discards (or does not send) a second discard signal of at least one of the second signal or the first SSB, and the second discard signal includes a signal or an overlapping part on an overlapping symbol.

[0289] Exemplarily, when the second signal overlaps with the first SSB on the same symbol, the network-side device may process the signal in at least one of the following ways:

[0290] 1) discarding signals on overlapping symbols in the first SSB;

[0291] 2) discarding signals on overlapping symbols in the second signal;

[0292] 3) discarding the overlapping portion of the second signal;

[0293] 4) Discard the overlapping part in the first SSB.

[0294] In this way, the processing method of the network side equipment when the second signal and the first SSB overlap on the same symbol is clarified, thereby ensuring the transmission of the first SSB and the second signal and guaranteeing the downlink reception of the terminal.

[0295] Optionally, in this embodiment of the present application, the transmission resource of the first measurement signal or the first SSB includes at least one of the following:

[0296] at least a portion of a transmission opportunity of the first SSB;

[0297] At least part of the transmission frequency domain resources of the first SSB.

[0298] Optionally, the method further includes:

[0299] The network-side device determines the transmission resource of the first measurement signal or the first SSB by using a first parameter of the first SSB; wherein the first parameter includes at least one of the following:

[0300] sequence-related parameters of the first SSB;

[0301] frequency domain parameters of the first SSB;

[0302] The time domain parameters of the first SSB.

[0303] Optionally, the method further includes:

[0304] The network-side device determines or configures relevant parameters of the first measurement signal or the first SSB based on at least one of the following:

[0305] the index of the first SSB;

[0306] a synchronization signal in the first SSB;

[0307] a PBCH DMRS in the first SSB;

[0308] the MIB in the first SSB;

[0309] Layer 1 load of PBCH;

[0310] System frame number;

[0311] Other system messages;

[0312] CORESET 0;

[0313] Search space 0;

[0314] Random access message 2 or message B;

[0315] Random access message 4;

[0316] PEI;

[0317] DCI for scheduling paging.

[0318] It should be noted that the tracking signal processing method applied to the network-side device in the embodiment of the present application corresponds to the tracking signal processing method applied to the terminal side mentioned above. The relevant concepts and specific implementation processes involved in the embodiment of the present application can be referred to the description in the method embodiment described in Figure 2 above, and will not be repeated here.

[0319] In an embodiment of the present application, a network-side device sends a first tracking signal to a terminal, where the first tracking signal includes at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain, so that the terminal can perform measurements based on the time-domain enhanced first tracking signal, enabling terminals in connected and non-connected states to better perform time-frequency tracking, especially enabling the terminal to obtain better time-frequency tracking accuracy during initial access and random access stages, thereby helping to improve the downlink transmission performance of the terminal.

[0320] The tracking signal processing method provided in the embodiment of the present application can be executed by a tracking signal processing device. In the embodiment of the present application, the tracking signal processing device provided in the embodiment of the present application is described by taking the tracking signal processing device performing the tracking signal processing as an example.

[0321] Please refer to FIG5 , which is a structural diagram of a tracking signal processing device provided in an embodiment of the present application. As shown in FIG5 , the tracking signal processing device 500 includes:

[0322] A receiving module 501 is configured to receive a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal;

[0323] a measurement module 502, configured to perform measurement based on the first tracking signal;

[0324] The first measurement signal includes at least one of the following:

[0325] The first signal of the first SSB is repeated M-1 times in the time domain, where M is an integer greater than 1;

[0326] Second signal;

[0327] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0328] Optionally, the first signal includes at least one of the following:

[0329] Synchronous signal;

[0330] Physical Broadcast Channel PBCH;

[0331] PBCH demodulation reference signal DMRS;

[0332] Broadcast channel for other system messages.

[0333] Optionally, the M-1 repetitions of the first signal in the time domain satisfy at least one of the following:

[0334] The SSB index corresponding to the M-1 repetitions is the same as the index of the first SSB;

[0335] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0336] At least some of the signals in the repeated signal group correspond to the same quasi-co-site QCL reference relationship;

[0337] The signals in the repetitive signal group are separated by X time domain units in the time domain, where X ≥ 0;

[0338] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the time domain.

[0339] Optionally, when the terminal performs measurement based on the first tracking signal, the first measurement signal includes L repetitions of the first signal in the time domain, where L≤M-1.

[0340] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0341] including at least two synchronization signals;

[0342] The at least two synchronization signals occupy at least two time slots;

[0343] The synchronization signal and PBCH are in different time slots;

[0344] The PBCH occupies at least one time slot.

[0345] Optionally, when there are multiple first SSBs, multiple first SSBs share all or part of the signal.

[0346] Optionally, when the first tracking signal includes at least two first SSBs and a signal collision occurs between the at least two first SSBs, the apparatus further includes:

[0347] The first discarding module is used to discard a first discarding signal of at least one first SSB among the at least two first SSBs, where the first discarding signal includes a colliding signal or all signals.

[0348] Optionally, the second signal includes at least one of the following:

[0349] Other synchronization signals different from the synchronization signal in the first SSB;

[0350] a reference signal other than the reference signal in the first SSB;

[0351] Second SSB.

[0352] Optionally, the second SSB satisfies at least one of the following:

[0353] The second SSB does not include a PBCH;

[0354] The second SSB includes at least one synchronization signal.

[0355] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0356] There is a time domain interval between each of the at least two synchronization signals;

[0357] The at least two synchronization signals occupy at least one time slot;

[0358] The at least two synchronization signals occupy the same frequency domain resources.

[0359] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0360] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0361] The second SSB has the same QCL reference relationship as the first SSB;

[0362] The second SSB has the same index as the first SSB;

[0363] The cell identifier of the second SSB is the same as that of the first SSB;

[0364] The second SSB is aligned with a preset frequency domain position of the first SSB.

[0365] Optionally, the second signal satisfies at least one of the following:

[0366] In the case where there are multiple second signals, the time domain intervals between the multiple second signals are equal to the time domain intervals between synchronization signals in the first SSB;

[0367] The second signal is separated from the first SSB by at least one time domain unit.

[0368] Optionally, when the second signal overlaps with the first SSB on the same symbol, the apparatus further includes:

[0369] A second discarding module is used to discard a second discarding signal of at least one of the second signal or the first SSB, where the second discarding signal includes a signal on an overlapping symbol or an overlapping part.

[0370] Optionally, the device further comprises:

[0371] A first determining module is configured to determine a measurement window length of the first tracking signal, where the measurement window length is related to at least one of the following:

[0372] a period of the first SSB;

[0373] a period of the first SSB to RO mapping cycle;

[0374] a period of association of the first SSB to the RO;

[0375] a period of the first SSB to RO association mode;

[0376] The period from the first SSB to the CG PUSCH;

[0377] PRACH configuration period;

[0378] Determine the period of the RO group used for PRACH repetition.

[0379] Optionally, a transmission resource of the first measurement signal or the first SSB includes at least one of the following:

[0380] at least a portion of a transmission opportunity of the first SSB;

[0381] At least part of the transmission frequency domain resources of the first SSB.

[0382] Optionally, the device further comprises:

[0383] A second determining module is configured to determine a transmission resource of the first measurement signal or the first SSB by using a first parameter of the first SSB; wherein the first parameter includes at least one of the following:

[0384] sequence-related parameters of the first SSB;

[0385] frequency domain parameters of the first SSB;

[0386] The time domain parameters of the first SSB.

[0387] Optionally, the device further comprises:

[0388] A processing module is configured to receive downlink transmission using at least one of the first SSB and the first measurement signal as a QCL reference starting from a target time after the device receives the first tracking signal.

[0389] Optionally, the device further comprises:

[0390] A third determining module is configured to determine relevant parameters of the first measurement signal or the first SSB based on at least one of the following:

[0391] the index of the first SSB;

[0392] a synchronization signal in the first SSB;

[0393] a PBCH DMRS in the first SSB;

[0394] the MIB in the first SSB;

[0395] Layer 1 load of PBCH;

[0396] System frame number;

[0397] Other system messages;

[0398] CORESET 0;

[0399] Search space 0;

[0400] Random access message 2 or message B;

[0401] Random access message 4;

[0402] PEI;

[0403] DCI for scheduling paging.

[0404] In an embodiment of the present application, the device receives a first tracking signal sent by a network-side device, and then performs measurement based on the first tracking signal; wherein, the first tracking signal includes at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain, and then the device (such as a terminal) can perform measurement based on the first tracking signal enhanced in the time domain, so that terminals in connected and non-connected states can better perform time-frequency tracking, especially enabling terminals to obtain better time-frequency tracking accuracy during initial access and random access stages, which helps to improve the downlink transmission performance of the terminal.

[0405] The tracking signal processing 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 other devices can include servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0406] The tracking signal processing device provided in the embodiment of the present application can implement each process implemented by the method embodiment described in Figure 2 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0407] Please refer to FIG. 6 , which is a structural diagram of another tracking signal processing device provided in an embodiment of the present application. As shown in FIG. 6 , the tracking signal processing device 600 includes:

[0408] The sending module 601 is configured to send a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following:

[0409] The first signal of the first SSB is repeated M-1 times in the time domain, where M is a positive integer greater than 1;

[0410] Second signal;

[0411] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0412] Optionally, the first signal includes at least one of the following:

[0413] Synchronous signal;

[0414] PBCH;

[0415] DMRS of PBCH;

[0416] Broadcast channel for other system messages.

[0417] Optionally, the M-1 repetitions of the first signal in the time domain satisfy at least one of the following:

[0418] The SSB index corresponding to the M-1 repetitions is the same as the index of the first SSB;

[0419] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0420] At least some of the signals in the repeated signal group correspond to the same quasi-co-site QCL reference relationship;

[0421] The signals in the repetitive signal group are separated by X time domain units in the time domain, where X ≥ 0;

[0422] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the time domain.

[0423] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0424] including at least two synchronization signals;

[0425] The at least two synchronization signals occupy at least two time slots;

[0426] The synchronization signal and PBCH are in different time slots;

[0427] The PBCH occupies at least one time slot.

[0428] Optionally, when there are multiple first SSBs, the multiple first SSBs share all or part of the signal.

[0429] Optionally, when the first tracking signal includes at least two first SSBs and a signal collision occurs between the at least two first SSBs, the apparatus further includes:

[0430] The third discarding module is used to discard a first discarding signal of at least one first SSB among the at least two first SSBs, where the first discarding signal includes a colliding signal or all signals.

[0431] Optionally, the second signal includes at least one of the following:

[0432] Other synchronization signals different from the synchronization signal in the first SSB;

[0433] a reference signal other than the reference signal in the first SSB;

[0434] Second SSB.

[0435] Optionally, the second SSB satisfies at least one of the following:

[0436] The second SSB does not include a PBCH;

[0437] The second SSB includes at least one synchronization signal.

[0438] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0439] There is a time domain interval between each of the at least two synchronization signals;

[0440] The at least two synchronization signals occupy at least one time slot;

[0441] The at least two synchronization signals occupy the same frequency domain resources.

[0442] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0443] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0444] The second SSB has the same QCL reference relationship as the first SSB;

[0445] The second SSB has the same index as the first SSB;

[0446] The cell identifier of the second SSB is the same as that of the first SSB;

[0447] The second SSB is aligned with a preset frequency domain position of the first SSB.

[0448] Optionally, the second signal satisfies at least one of the following:

[0449] In the case where there are multiple second signals, the time domain intervals between the multiple second signals are equal to the time domain intervals between synchronization signals in the first SSB;

[0450] The second signal is separated from the first SSB by at least one time domain unit.

[0451] Optionally, when the second signal overlaps with the first SSB on the same symbol, the apparatus further includes:

[0452] A fourth discarding module is used to discard a second discarding signal of at least one of the second signal or the first SSB, wherein the second discarding signal includes a signal or an overlapping part on an overlapping symbol.

[0453] Optionally, a transmission resource of the first measurement signal or the first SSB includes at least one of the following:

[0454] at least a portion of a transmission opportunity of the first SSB;

[0455] At least part of the transmission frequency domain resources of the first SSB.

[0456] Optionally, the device further comprises:

[0457] A fourth determination module is configured to determine a transmission resource of the first measurement signal or the first SSB by using a first parameter of the first SSB; wherein the first parameter includes at least one of the following:

[0458] sequence-related parameters of the first SSB;

[0459] frequency domain parameters of the first SSB;

[0460] The time domain parameters of the first SSB.

[0461] Optionally, the device further comprises:

[0462] a fifth determining module, configured to determine or configure relevant parameters of the first measurement signal or the first SSB based on at least one of the following:

[0463] the index of the first SSB;

[0464] a synchronization signal in the first SSB;

[0465] a PBCH DMRS in the first SSB;

[0466] the MIB in the first SSB;

[0467] Layer 1 load of PBCH;

[0468] System frame number;

[0469] Other system messages;

[0470] CORESET 0;

[0471] Search space 0;

[0472] Random access message 2 or message B;

[0473] Random access message 4;

[0474] PEI;

[0475] DCI for scheduling paging.

[0476] In an embodiment of the present application, the device sends a first tracking signal to the terminal, where the first tracking signal includes at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain, so that the terminal can perform measurements based on the time-domain enhanced first tracking signal, so that terminals in connected and non-connected states can better perform time-frequency tracking, especially enabling the terminal to obtain better time-frequency tracking accuracy during initial access and random access stages, thereby helping to improve the downlink transmission performance of the terminal.

[0477] The tracking signal processing device provided in the embodiment of the present application can implement each process implemented by the method embodiment described in Figure 4 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0478] As shown in Figure 7, an embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702. The memory 702 stores a program or instruction that can be run on the processor 701. For example, when the communication device 700 is a terminal, the program or instruction, when executed by the processor 701, implements the various steps of the embodiment of the above-mentioned tracking signal processing method, and can achieve the same technical effect. When the communication device 700 is a network-side device, the program or instruction, when executed by the processor 701, implements the various steps of the embodiment of the above-mentioned tracking signal processing method, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0479] 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, FIG8 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0480] The terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809 and at least some of the components of the processor 810.

[0481] Those skilled in the art will appreciate that the terminal 800 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 810 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG8 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.

[0482] It should be understood that in an embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processor 8041 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 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and at least one of other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 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 a joystick, which will not be repeated here.

[0483] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 801 may transmit the data to the processor 810 for processing. Furthermore, the radio frequency unit 801 may send uplink data to the network-side device. Typically, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0484] The memory 809 can be used to store software programs or instructions and various data. The memory 809 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 809 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. The volatile memory may 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 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0485] Processor 810 may include one or more processing units. Optionally, processor 810 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 810.

[0486] The radio frequency unit 801 is configured to receive a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal;

[0487] Processor 810, configured to perform measurement based on the first tracking signal;

[0488] The first measurement signal includes at least one of the following:

[0489] The first signal of the first SSB is repeated M-1 times in the time domain, where M is an integer greater than 1;

[0490] Second signal;

[0491] The first signal is at least a portion of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0492] In an embodiment of the present application, the terminal receives a first tracking signal sent by a network-side device, and then performs measurement based on the first tracking signal; wherein, the first tracking signal includes at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain, and the terminal can perform measurement based on the time-domain enhanced first tracking signal, so that terminals in connected and non-connected states can better perform time-frequency tracking, especially enabling the terminal to obtain better time-frequency tracking accuracy during initial access and random access stages, which helps to improve the downlink transmission performance of the terminal.

[0493] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned tracking signal processing method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0494] 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 FIG4 . 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.

[0495] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 9, the network-side device 900 includes an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94, and a memory 95. Antenna 91 is connected to radio frequency device 92. In the uplink direction, radio frequency device 92 receives information via antenna 91 and sends the received information to baseband device 93 for processing. In the downlink direction, baseband device 93 processes the information to be transmitted and sends it to radio frequency device 92. Radio frequency device 92 processes the received information and then sends it through antenna 91.

[0496] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 93 , which includes a baseband processor.

[0497] The baseband device 93 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 9, one of the chips is, for example, a baseband processor, which is connected to the memory 95 through a bus interface to call the program in the memory 95 and execute the network device operations shown in the above method embodiment.

[0498] The network side device may further include a network interface 96, which is, for example, a Common Public Radio Interface (CPRI).

[0499] Specifically, the network side device 900 of an embodiment of the present invention also includes: instructions or programs stored in the memory 95 and executable on the processor 94. The processor 94 calls the instructions or programs in the memory 95 to execute the methods executed by the modules shown in FIG6 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0500] 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 tracking signal processing method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0501] 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.

[0502] 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 tracking signal processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0503] 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.

[0504] 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 tracking signal processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0505] An embodiment of the present application further provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the tracking signal processing method described above, and the network-side device can be used to execute the steps of the tracking signal processing method described above.

[0506] 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.

[0507] 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.

[0508] 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 processing a tracking signal, comprising: The terminal receives a first tracking signal, where the first tracking signal includes at least one of a first synchronization signal block (SSB) and a first measurement signal; The terminal performs measurements based on the first tracking signal; Wherein, the first measurement signal includes at least one of the following: M - 1 repetitions of the first signal of the first SSB in the time domain, where M is an integer greater than 1; A second signal; The first signal is at least part of the signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

2. The method according to claim 1, wherein The first signal includes at least one of the following: A synchronization signal; A physical broadcast channel (PBCH); A demodulation reference signal (DMRS) of the PBCH; A broadcast channel for other system messages.

3. The method according to claim 1, wherein The M - 1 repetitions of the first signal in the time domain satisfy at least one of the following: The SSB index corresponding to the M - 1 repetitions is the same as the index of the first SSB; The power corresponding to the M - 1 repetitions is the same as the power corresponding to the first SSB; The quasi - co - location (QCL) reference relationships corresponding to at least part of the signals in the repetition signal group are the same; The signals in the repetition signal group are spaced X time domain units apart in the time domain, where X ≥ 0; Wherein, the repetition signal group includes the first SSB and the M - 1 repetitions of the first signal in the time domain.

4. The method according to claim 1, wherein When the terminal performs measurements based on the first tracking signal, the first measurement signal includes L repetitions of the first signal in the time domain, where L ≤ M - 1.

5. The method according to claim 1, wherein, When the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following: Includes at least two synchronization signals; The at least two synchronization signals occupy at least two time slots; The synchronization signal and the PBCH are in different time slots; The PBCH occupies at least one time slot.

6. The method according to claim 1, wherein When the number of the first SSBs is multiple, the multiple first SSBs share all or part of the signals.

7. The method according to claim 1, wherein When the first tracking signal includes at least two first SSBs and signal collision occurs between the at least two first SSBs, the method further includes: The terminal discards the first discard signal of at least one of the at least two first SSBs, where the first discard signal includes the collided signals or all the signals.

8. The method according to any one of claims 1-7, wherein The second signal includes at least one of the following: Other synchronization signals different from the synchronization signals in the first SSB; Other reference signals different from the reference signals in the first SSB; A second SSB.

9. The method according to claim 8, wherein The second SSB satisfies at least one of the following: The second SSB does not include a PBCH; The second SSB includes at least one synchronization signal.

10. The method according to claim 9, wherein, When the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following: There is a time domain interval between each of the at least two synchronization signals; The at least two synchronization signals occupy at least one time slot; The frequency domain resources occupied by the at least two synchronization signals are the same.

11. The method according to claim 8, wherein The second SSB and the first SSB satisfy at least one of the following: The bandwidth of the second SSB is the same as or different from that of the first SSB; The QCL reference relationship of the second SSB is the same as that of the first SSB; The index of the second SSB is the same as that of the first SSB; The cell identifier of the second SSB is the same as that of the first SSB; The second SSB is aligned with the first SSB at a preset frequency domain position.

12. The method according to any one of claims 1 to 11, wherein, The second signal satisfies at least one of the following: When the number of the second signals is multiple, the time domain interval between the multiple second signals is equal to the time domain interval between the synchronization signals in the first SSB; The second signal is separated from the first SSB by at least one time domain unit.

13. The method according to any one of claims 1-12, wherein, When the second signal overlaps with the first SSB on the same symbol, the method further includes: The terminal discards the second discard signal of at least one of the second signal or the first SSB, and the second discard signal includes the signal or the overlapping part on the overlapping symbol.

14. The method according to any one of claims 1-13, the method further includes: The terminal determines the measurement window length of the first tracking signal, and the measurement window length is related to at least one of the following: The period of the first SSB; The period of the mapping cycle from the first SSB to the random access channel occasion RO; The period of the association from the first SSB to RO; The period of the association mode from the first SSB to RO; The period of the association from the first SSB to the configured grant physical uplink shared channel CG PUSCH; The configuration period of the physical random access channel PRACH; The determination period of the RO group for PRACH repetition.

15. The method according to any one of claims 1 to 14, wherein The transmission resource of the first measurement signal or the first SSB includes at least one of the following: At least part of the transmission occasion of the first SSB; At least part of the transmission frequency domain resource of the first SSB.

16. The method according to claim 15, the method further includes: The terminal determines the transmission resource of the first measurement signal or the first SSB through the first parameter of the first SSB; wherein, the first parameter includes at least one of the following: The sequence related parameter of the first SSB; The frequency domain parameter of the first SSB; The time domain parameter of the first SSB.

17. The method according to any one of claims 1-16, the method further includes: Starting from the target time after the terminal receives the first tracking signal, the terminal receives the downlink transmission by using at least one of the first SSB and the first measurement signal as the QCL reference.

18. The method according to any one of claims 1-17, the method further includes: The terminal determines the relevant parameters of the first measurement signal or the first SSB based on at least one of the following: The index of the first SSB; The synchronization signal in the first SSB; The PBCH DMRS in the first SSB; The master information block MIB in the first SSB; The layer 1 payload of the PBCH; The system frame number; Other system messages; The control resource set CORESET 0; The search space 0; The random access message 2 or message B; Random access message 4; Paging early indication PEI; Downlink control information DCI for scheduling paging.

19. A method for processing a tracking signal, comprising: A network side device sends a first tracking signal, the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following: M-1 repetitions of the first signal of the first SSB in the time domain, where M is a positive integer greater than 1; A second signal; Wherein, the first signal is at least part of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

20. The method according to claim 19, wherein, The first signal includes at least one of the following: Synchronization signal; PBCH; DMRS of PBCH; Broadcast channel of other system messages.

21. The method according to claim 19, wherein The M-1 repetitions of the first signal in the time domain satisfy at least one of the following: The SSB index corresponding to the M-1 repetitions is the same as the index of the first SSB; The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB; The quasi-co-location QCL reference relationships corresponding to at least part of the signals in the repeated signal group are the same; The signals in the repeated signal group are spaced X time domain units in the time domain, where X≥0; Wherein, the repeated signal group includes the first SSB and M-1 repetitions of the first signal in the time domain.

22. The method according to claim 19, wherein When the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following: Includes at least two synchronization signals; The at least two synchronization signals occupy at least two time slots; The synchronization signal and the PBCH are in different time slots; The PBCH occupies at least one time slot.

23. The method according to claim 19, wherein In the case where the number of the first SSBs is multiple, the multiple first SSBs share all or part of the signals.

24. The method according to claim 19, wherein In the case where the first tracking signal includes at least two first SSBs and signal collision occurs between the at least two first SSBs, the method further includes: The network side device discards the first discard signal of at least one of the at least two first SSBs, and the first discard signal includes the collided signal or all signals.

25. The method according to any one of claims 19-24, wherein, The second signal includes at least one of the following: Other synchronization signals different from the synchronization signals in the first SSB; Other reference signals different from the reference signals in the first SSB; A second SSB.

26. The method according to claim 25, wherein, The second SSB satisfies at least one of the following: The second SSB does not include PBCH; The second SSB includes at least one synchronization signal.

27. The method according to claim 26, wherein, In the case where the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following: There is a time domain interval between each of the at least two synchronization signals; The at least two synchronization signals occupy at least one time slot; The frequency domain resources occupied by the at least two synchronization signals are the same.

28. The method according to claim 25, wherein, The second SSB and the first SSB satisfy at least one of the following: The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB; The QCL reference relationship between the second SSB and the first SSB is the same; The index of the second SSB is the same as the index of the first SSB; The second SSB has the same cell identifier as the first SSB; The second SSB is aligned with a preset frequency domain position of the first SSB.

29. The method according to any one of claims 19 - 28, wherein The second signal satisfies at least one of the following: When the number of the second signals is multiple, a time domain interval between the multiple second signals is equal to a time domain interval between synchronization signals in the first SSB; The second signal is separated from the first SSB by at least one time domain unit.

30. The method according to any one of claims 19-29, wherein, When the second signal overlaps with the first SSB on the same symbol, the method further includes: The network side device discards a second discarded signal of at least one of the second signal or the first SSB, where the second discarded signal includes a signal or an overlapping part on the overlapping symbol.

31. The method according to any one of claims 19 - 30, wherein The transmission resource of the first measurement signal or the first SSB includes at least one of the following: At least part of a transmission occasion of the first SSB; At least part of a transmission frequency domain resource of the first SSB.

32. According to the method of claim 31, the method further includes: The network side device determines the transmission resource of the first measurement signal or the first SSB through a first parameter of the first SSB; where the first parameter includes at least one of the following: A sequence related parameter of the first SSB; A frequency domain parameter of the first SSB; A time domain parameter of the first SSB.

33. According to the method of any one of claims 19-32, the method further includes: The network side device determines or configures a related parameter of the first measurement signal or the first SSB based on at least one of the following: An index of the first SSB; A synchronization signal in the first SSB; PBCH DMRS in the first SSB; MIB in the first SSB; A layer 1 payload of PBCH; A system frame number; Other system messages; CORESET 0; Search space 0; A random access message 2 or message B; A random access message 4; PEI; A DCI for scheduling paging.

34. A processing device for a tracking signal, including: A receiving module, configured to receive a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; A measuring module, configured to perform measurement based on the first tracking signal; Where the first measurement signal includes at least one of the following: An M-1 time repetition in the time domain of a first signal of the first SSB, where M is an integer greater than 1; A second signal; The first signal is at least part of the signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

35. The apparatus according to claim 34, wherein, When the first tracking signal includes at least two first SSBs and signal collision occurs between the at least two first SSBs, the device further includes: A first discarding module, configured to discard a first discarded signal of at least one of the at least two first SSBs, where the first discarded signal includes a collided signal or all signals.

36. The apparatus according to claim 34, wherein, When the second signal overlaps with the first SSB on the same symbol, the device further includes: A second discarding module, configured to discard a second discarding signal of at least one of the second signal or the first SSB, where the second discarding signal includes a signal or an overlapping part on an overlapping symbol.

37. The apparatus according to any one of claims 34-36, the apparatus further comprising: A first determining module, configured to determine a measurement window length of the first tracking signal, where the measurement window length is related to at least one of the following: A period of the first SSB; A period of a mapping cycle from the first SSB to the RO; A period of an association between the first SSB and the RO; A period of an association pattern between the first SSB and the RO; A period of the first SSB to the CG PUSCH; A configuration period of the PRACH; A determining period of an RO group for PRACH repetition.

38. A processing apparatus for a tracking signal, comprising: A sending module, configured to send a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following: M-1 repetitions in the time domain of a first signal of the first SSB, where M is a positive integer greater than 1; A second signal; where the first signal is at least part of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

39. The apparatus according to claim 38, wherein, When the first tracking signal includes at least two first SSBs and signal collision occurs between the at least two first SSBs, the apparatus further comprises: A third discarding module, configured to discard a first discarding signal of at least one of the at least two first SSBs, where the first discarding signal includes a collided signal or all signals.

40. The apparatus according to claim 38, wherein, When the second signal overlaps with the first SSB on the same symbol, the apparatus further comprises: A fourth discarding module, configured to discard a second discarding signal of at least one of the second signal or the first SSB, where the second discarding signal includes a signal or an overlapping part on the overlapping symbol.

41. A terminal, 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 processing method for a tracking signal according to any one of claims 1-18 are implemented.

42. A network-side device, 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 processing method for a tracking signal according to any one of claims 19-33 are implemented.

43. A readable storage medium, where 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 processing method for a tracking signal according to any one of claims 1-18 are implemented, or the steps of the processing method for a tracking signal according to any one of claims 19-33 are implemented.

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