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

Abstract

The present application relates to the technical field of communications, and discloses a tracking signal processing method and apparatus, a terminal, and a network side device. The tracking signal processing method in embodiments of the present application comprises: a terminal receives a first tracking signal, the first tracking signal comprising a first SSB and a first measurement signal; and the terminal performs measurement on the basis of the first tracking signal, the first measurement signal comprising at least one of the following: M-1 repetitions of a first signal of the first SSB in a frequency domain, M being a positive integer greater than 1; an expanded frequency domain portion of the first signal of the first SSB; and a second signal, wherein the first signal is at least some of signals in the first SSB, and the second signal is a signal different from the first signal.

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. 202410037718.1 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 the 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 a first 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 frequency domain, where M is a positive integer greater than 1;

[0011] a frequency domain extension portion of the first signal of the first SSB;

[0012] Second signal;

[0013] The first signal is at least part of the signal in the first SSB, and the second signal is different from the

[0014] The signal of the first signal.

[0015] In a second aspect, a method for processing a tracking signal is provided, comprising:

[0016] The network-side device sends a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal, where the first measurement signal includes at least one of the following:

[0017] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0018] a frequency domain extension portion of the first signal of the first SSB;

[0019] Second signal;

[0020] 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.

[0021] In a third aspect, a tracking signal processing device is provided, comprising:

[0022] a receiving module, configured to receive a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal;

[0023] a measurement module, configured to perform measurement based on the first tracking signal;

[0024] The first measurement signal includes at least one of the following:

[0025] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0026] a frequency domain extension portion of the first signal of the first SSB;

[0027] Second signal;

[0028] 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.

[0029] In a fourth aspect, a tracking signal processing device is provided, comprising:

[0030] A sending module is configured to send a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal, where the first measurement signal includes at least one of the following:

[0031] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0032] a frequency domain extension portion of the first signal of the first SSB;

[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.

[0035] 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.

[0036] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is configured to receive a first tracking signal, the first tracking signal including a first SSB and a first measurement signal; the processor is configured to perform measurement based on the first tracking signal; and the first measurement signal includes at least one of the following:

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

[0038] a frequency domain extension portion of the first signal of the first SSB;

[0039] Second signal;

[0040] 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.

[0041] 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.

[0042] 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 a first SSB and a first measurement signal, the first measurement signal including at least one of the following:

[0043] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0044] a frequency domain extension portion of the first signal of the first SSB;

[0045] Second signal;

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] In a twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

[0051] 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 a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: M-1 repetitions of the first signal of the first SSB in the frequency domain, a frequency domain extension portion of the first signal of the first SSB, and a second signal. wherein, the first measurement signal can be understood as an enhanced signal of the first SSB in the frequency domain, that is, the network-side device performs signal enhancement on the first SSB in the frequency domain to generate the first tracking signal, and the terminal can perform measurement based on the frequency-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 performance during initial access and random access stages, which helps to improve the downlink transmission performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0053] FIG2 is a flowchart of a tracking signal processing method provided in an embodiment of the present application;

[0054] FIG3a is a schematic diagram of a first SSB in a tracking signal processing method provided in an embodiment of the present application;

[0055] 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;

[0056] 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;

[0057] 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;

[0058] FIG3e is a fifth schematic diagram of the first SSB in a tracking signal processing method provided in an embodiment of the present application;

[0059] FIG4 is a flowchart of another tracking signal processing method provided in an embodiment of the present application;

[0060] FIG5 is a structural diagram of a tracking signal processing device provided in an embodiment of the present application;

[0061] FIG6 is a structural diagram of another tracking signal processing device provided in an embodiment of the present application;

[0062] FIG7 is a structural diagram of a communication device provided in an embodiment of the present application;

[0063] FIG8 is a structural diagram of a terminal provided in an embodiment of the present application;

[0064] FIG9 is a structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] For better understanding, the relevant concepts involved in the embodiments of this application are explained below.

[0072] Synchronous signal block:

[0073] In the NR system, the synchronization signal and physical broadcast channel (PBCH) block (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 (RBs) in the frequency domain. Due to the limited time and frequency resources occupied by the SSB, only relatively preliminary coarse time and frequency synchronization can be performed based on the SSB.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] Quasi co-location (QCL) reference:

[0079] 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.

[0080] NR has designed four different types of QCL reference relationships to cope with different transmission scenarios. The specific QCL reference types qcl-Type (Type) are as follows:

[0081] 1) Type A: {Doppler frequency deviation, Doppler spread, average delay, delay spread}

[0082] 2) Type B: {Doppler frequency deviation, Doppler spread}

[0083] 3) Type C: {Doppler frequency deviation, average delay}

[0084] 4) TypeD: {space receiving parameters}

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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:

[0089] Step 201: The terminal receives a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal.

[0090] Step 202: The terminal performs measurement based on the first tracking signal.

[0091] The first measurement signal includes at least one of the following:

[0092] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0093] a frequency domain extension portion of the first signal of the first SSB;

[0094] Second signal;

[0095] 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.

[0096] Optionally, the first signal includes at least one of the following:

[0097] Synchronization signal, the synchronization signal including at least one of the following: PSS, SSS, other synchronization signals;

[0098] PBCH, including PBCH DMRS;

[0099] DMRS of PBCH;

[0100] Broadcast channel for other system messages.

[0101] In an embodiment of the present application, the first measurement signal can be understood as an enhanced signal of the first SSB in the frequency 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 perform preliminary time-frequency synchronization after receiving the first SSB, then measure the first measurement signal to obtain precise time-frequency synchronization, and then perform initial access. Alternatively, the terminal may first determine the information of the first measurement signal after receiving the first SSB, and then jointly measure the first SSB and the first measurement signal.

[0102] Exemplarily, the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the frequency domain; for example, the first signal may be all signals (or channels) in the first SSB, that is, all signals (or channels) in the first SSB are repeated M-1 times in the frequency domain. Alternatively, the first signal may be a portion of the signals in the first SSB. For example, when performing frequency domain repetition, if it is only for improving the performance of time-frequency synchronization, it is not necessary to repeat all the signals used in the first SSB, and only part of the signals need to be repeated, such as repeating one or more of the signals. For example, referring to Figure 3a, the first signal only includes synchronization signals (assuming synchronization signal 1 and synchronization signal 2). Figure 3a shows an example of three repetitions (repetition #1, repetition #2, repetition #3, that is, M=4). It can be seen from Figure 3a that after the first signal in the first SSB (that is, synchronization signal 1 and synchronization signal 2) is repeated three times in the frequency domain, the measurement bandwidth of the synchronization signal is increased by three times, which is more conducive to accurate time-frequency estimation.

[0103] In an embodiment of the present application, the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the frequency domain, thereby increasing the occupied bandwidth of the first tracking signal in the frequency domain, enabling the terminal to measure the first tracking signal within a larger bandwidth, thereby obtaining a measurement gain in the frequency domain.

[0104] 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.

[0105] Optionally, the M-1 repetitions of the first signal in the frequency domain satisfy at least one of the following:

[0106] The SSB index corresponding to the M-1 repetitions is the same as the index corresponding to the first SSB, wherein the index is an SSB index;

[0107] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0108] 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;

[0109] The signals in the repeated signal group are spaced apart by X frequency domain units in the frequency domain, where X≥0, and the frequency domain unit may be a resource element (RE) or a resource block (RB).

[0110] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the frequency domain.

[0111] 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.

[0112] 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.

[0113] It should be noted that when the M-1 repetitions of the first signal in the frequency 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 frequency domain, thereby improving the performance of time-frequency tracking.

[0114] Optionally, the first measurement signal may further include a frequency domain extension portion of the first signal of the first SSB, that is, frequency domain (such as bandwidth) expansion is performed on the first signal in the first SSB.

[0115] For example, in some embodiments, the frequency domain extension portion may be implemented by increasing the bandwidth of a synchronization signal (i.e., a first signal) in a first SSB, where the synchronization signal includes at least one of the following: a PSS, a non-PSS synchronization signal (including at least one of an SSS and other synchronization signals). In this way, the accuracy of time-frequency estimation can be improved by directly increasing the bandwidth of the synchronization signal.

[0116] It should be noted that the bandwidth between the synchronization signals satisfies any of the following conditions:

[0117] The bandwidth of the PSS is equal to the bandwidth of the non-PSS synchronization signal;

[0118] The bandwidth of PSS is larger than the bandwidth of non-PSS synchronization signals;

[0119] The bandwidth of the PSS is smaller than the bandwidth of the non-PSS synchronization signal.

[0120] Among them, when the bandwidth of PSS is equal to the bandwidth of non-PSS synchronization signal, the terminal can effectively use the frequency domain position of all synchronization signals to measure parameters such as frequency deviation and Doppler spread. When the bandwidth of PSS is greater than the bandwidth of non-PSS synchronization signal, it is beneficial to improve the measurement accuracy of parameters such as timing and delay spread of the terminal. When the bandwidth of PSS is less than the bandwidth of non-PSS synchronization signal, it is beneficial to reduce the complexity of terminal based on PSS coarse timing, and the terminal can perform further fine timing based on SSS.

[0121] In other embodiments, the frequency domain extension may be achieved by increasing the bandwidth of the DMRS (i.e., the first signal) of the PBCH in the first SSB without increasing the bandwidth of the PBCH. In this case, the bandwidth of the DMRS of the PBCH is greater than the bandwidth of the PBCH. Thus, increasing the bandwidth of the DMRS facilitates joint time-frequency measurement with the synchronization signal.

[0122] In other embodiments, the frequency domain extension may be achieved by increasing the DMRS of the PBCH in the first SSB and the bandwidth of the PBCH (i.e., the first signal). In this case, the bandwidth of the DMRS of the PBCH is equal to the bandwidth of the PBCH. In this way, increasing the DMRS bandwidth also increases the bandwidth of the PBCH, which is beneficial for improving the transmission performance (improving the robustness of transmission) or transmission capacity (i.e., transmitting more information) of the PBCH.

[0123] It should be noted that since the bandwidth of the synchronization signal in the first SSB and the PBCH may be different, when performing frequency domain expansion, it is also possible to consider within which bandwidth range the expansion is performed.

[0124] Optionally, in this embodiment of the present application, the frequency domain resources occupied by the frequency domain extension portion of the first signal meet at least one of the following conditions:

[0125] is within the first SSB bandwidth;

[0126] Located outside the first SSB bandwidth.

[0127] Exemplarily, as shown in FIG3b, taking increasing the bandwidth of the PSS as an example, assuming that the bandwidth of the PSS is smaller than the bandwidth of the first SSB (which can be the bandwidth occupied by the maximum signal in the first SSB, or an explicitly defined bandwidth), at this time, the first optional method is: increasing the length of the PSS within the bandwidth of the first SSB, not exceeding the bandwidth of the first SSB (as shown in FIG3b b); the second optional method is: increasing the length of the PSS outside the bandwidth of the first SSB (as shown in FIG3b c), which can be understood as non-continuous mapping of the PSS sequence in the frequency domain; the third optional method is: extending the length of the PSS from the first SSB bandwidth to outside the first SSB bandwidth (as shown in FIG3b d). At this time, the PSS can be continuously mapped or non-continuously mapped.

[0128] When at least one of other signals or reserved resources exists on the symbols occupied by the first signal, the frequency domain extension portion does not occupy the at least one of the other signals or reserved resources, where the other signals are signals other than the first signal. The reserved resources may not contain any signals. That is, when at least one of other signals or reserved resources exists on the symbols occupied by the first signal, frequency domain extension of the first signal skips the symbols occupied by the other signals or reserved resources, and frequency domain extension of the first signal is performed on the remaining symbols.

[0129] Optionally, the first measurement signal may also include a second signal, that is, the first tracking signal includes a 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 the terminal's time-frequency estimation.

[0130] 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 a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: M-1 repetitions of the first signal of the first SSB in the frequency domain, a frequency domain extension portion of the first signal of the first SSB, and a second signal. wherein, the first measurement signal can be understood as an enhanced signal of the first SSB in the frequency domain, that is, the network-side device performs signal enhancement on the first SSB in the frequency domain to generate the first tracking signal, and the terminal can perform measurement based on the frequency-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 performance during initial access and random access stages, which helps to improve the downlink transmission performance of the terminal.

[0131] Optionally, in this embodiment of the present application, the second signal includes at least one of the following:

[0132] Second SSB;

[0133] Other synchronization signals different from the synchronization signal in the first SSB;

[0134] Other reference signals different from the reference signal in the first SSB, such as a tracking reference signal.

[0135] 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:

[0136] 1) combining the first SSB and the second signal into a first tracking signal, and performing time-frequency measurement based on the first tracking signal;

[0137] 2) First perform a preliminary measurement based on the first SSB, and then perform further fine measurement based on the second signal.

[0138] 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.

[0139] Optionally, in some embodiments, the second SSB satisfies at least one of the following:

[0140] The second SSB does not include a PBCH;

[0141] The second SSB includes at least one synchronization signal.

[0142] It should be noted that whether the second SSB includes PBCH can be a protocol agreement or a network side equipment configuration.

[0143] 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.

[0144] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0145] 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;

[0146] The at least two synchronization signals occupy at least one time slot;

[0147] The at least two synchronization signals occupy the same frequency domain resources.

[0148] For example, please refer to Figure 3c, 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 #1 and time slot #2), and is separated from the frequency domain of the first SSB by Y REs. The terminal can determine the frequency domain position of the second SSB based on the interval. In addition, there are 4 synchronization signals (synchronization signal 1 to synchronization signal 4) in the second SSB. 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. 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.

[0149] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0150] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0151] 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;

[0152] The second SSB has the same index as the first SSB, and the index may be an index of the SSB;

[0153] 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.

[0154] The second SSB is aligned with the preset time domain position of the first SSB, for example, the time domain is a symbol, and the preset time domain position can be the first symbol, or the center symbol or the last symbol. For example, the second SSB is aligned with the first SSB on the first symbol, or on the center symbol, or on the last symbol; of course, the time domain can also be other units, such as time slots, etc.

[0155] 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.

[0156] Optionally, in an embodiment of the present application, when the first measurement signal includes the second signal, the second signal is separated from the first signal of the first SSB by Y frequency domain units, where Y ≥ 0. In this way, the frequency domain positions of the second signal and the first signal can be determined, which helps the terminal to better perform time-frequency estimation.

[0157] Optionally, the frequency domain density of the first measurement signal is 1 / N of the frequency domain density of the first signal or the first SSB, where N≥1. The first SSB here can also be understood as a partial signal in the first SSB.

[0158] For example, assuming that the bandwidth within the first signal in the first SSB is bandwidth range 1, and the bandwidth outside the first signal of the first SSB is bandwidth range 2, then the frequency domain density of the first signal within bandwidth range 1 and the frequency domain density of the signal within bandwidth range 2 can be made different, thereby reducing the overall resource overhead of the terminal.

[0159] For example, the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the frequency domain. In this case, the M-1 repetitions can be understood as repetitions within bandwidth range 2. At this time, the sequence value of the first signal on the RE repeated within bandwidth range 2 is the same as the sequence value on the corresponding RE within bandwidth range 1, or the sequence value of the first signal on the RE repeated within bandwidth range 2 is remapped starting from the first sequence value according to the sequence within bandwidth range 1.

[0160] Alternatively, the first measurement signal includes the frequency domain extension part of the first signal of the first SSB. Assuming that the PSS within the bandwidth range 1 occupies X subcarriers continuously, the PSS within the bandwidth range 2 occupies B subcarriers at intervals, which can reduce the overall overhead of the PSS.

[0161] Alternatively, the first measurement signal includes a second signal, and the frequency domain density of the second signal is the same as or different from that of the first signal. As shown in Figure 3d, the repetition of the synchronization signal within bandwidth range 2 shows that its frequency domain density is 1 / 4 of the synchronization signal within bandwidth range 1, that is, 3 REs are mapped in one RB, while the frequency domain density of the synchronization signal within bandwidth range 1 is 1, that is, 12 REs are mapped in one RB. In addition, the value of the sequence mapped to the REs corresponding to the synchronization signal within bandwidth range 2 (the same RE index within one RB) is the same as the value of the sequence mapped to the REs corresponding to the synchronization signal within bandwidth range 1.

[0162] Optionally, frequency domain resources within the first measurement signal bandwidth not occupied by the first measurement signal may be used to transmit other signals other than the first measurement signal. For example, within bandwidth range 2, other signals, such as PBCH mapping (including PBCH DMRS), may be mapped to REs not occupied by the first measurement signal. This helps improve the utilization of frequency domain resources and enhances the transmission performance of the terminal.

[0163] In the embodiment of the present application, the method further includes:

[0164] The terminal determines a first bandwidth, where the first bandwidth is related to at least one of the following:

[0165] the bandwidth of the first SSB, for example, the first bandwidth is an integer multiple of the bandwidth of the first SSB;

[0166] The bandwidth of the first signal, for example, the first bandwidth is an integer multiple of the bandwidth of the first signal;

[0167] The number of physical resource blocks (PRBs), for example, the first bandwidth is an integer number of PRBs;

[0168] An initial bandwidth part (Bandwidth Part, BWP) of the first SSB, for example, the first bandwidth is the initial BWP of the first SSB;

[0169] at least one bandwidth portion currently activated;

[0170] The bandwidth of at least one frequency band or component carrier (CC);

[0171] at least one frequency band corresponding to multiple cells having the same downlink timing;

[0172] A pre-agreed bandwidth, for example, the first bandwidth is a default agreed 52 RBs;

[0173] The first bandwidth is greater than or equal to the bandwidth of the first signal or the first SSB.

[0174] It should be noted that the first bandwidth may be the bandwidth of the first tracking signal, which is used for measurement. That is, the terminal needs to determine the measurement bandwidth, which is more helpful for the terminal to measure in the initial access phase or random access phase.

[0175] Optionally, the first bandwidth includes at least one of the following bandwidths:

[0176] the first signal;

[0177] M-1 repetitions of the first signal in the frequency domain;

[0178] The frequency domain extension part;

[0179] the second signal.

[0180] Exemplarily, the first bandwidth may be the sum of the bandwidths of at least two of the above. For example, the first bandwidth may be the sum of the bandwidths of the first SSB and the second signal, or the first bandwidth may be the sum of the bandwidths of the first SSB and M-1 repetitions of the first signal in the frequency domain, etc.

[0181] It can be understood that the network side device can send multiple first SSBs within one cycle, but it is not necessarily necessary to perform frequency domain enhancement on the first SSBs at all SSB sending times (that is, to obtain the first measurement signal), so the transmission resources of the first measurement signal can be determined.

[0182] Optionally, in this embodiment of the present application, the transmission resource of the first measurement signal includes at least one of the following:

[0183] at least a portion of a transmission opportunity of the first SSB;

[0184] At least part of the transmission frequency domain resources of the first SSB.

[0185] For example, please refer to Figure 3e. Frequency domain enhancement is not performed on transmission timing #1 and transmission timing #3 of the first SSB, that is, the first measurement signal is not included, while frequency domain enhancement is performed on transmission timing #2, that is, the first measurement signal (including frequency domain expanded synchronization signal 1 and synchronization signal 2) is included.

[0186] 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.

[0187] Optionally, the method further includes:

[0188] The terminal determines, by using a first parameter of the first SSB, a transmission resource of the first measurement signal, where the first parameter includes at least one of the following:

[0189] Sequence-related parameters of the first SSB, such as a synchronization sequence of the first SSB or a scrambling method of the first SSB;

[0190] frequency domain parameters of the first SSB;

[0191] The time domain parameters of the first SSB, for example, the time domain parameters are frame information, time slot information, sub-window information, etc.

[0192] 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 frequency domain resources is different. The terminal can then determine through the sequence of PSS whether the currently transmitted first tracking signal includes the first measurement signal, that is, whether the first SSB in the first tracking signal has been frequency domain enhanced.

[0193] It can be understood that when the first tracking signal includes a first measurement signal, 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.

[0194] Optionally, the method further includes:

[0195] 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.

[0196] 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.

[0197] Optionally, in an embodiment of the present application, the method further includes:

[0198] The terminal determines, based on at least one of the following:

[0199] the index of the first SSB;

[0200] 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;

[0201] a PBCH DMRS in the first SSB;

[0202] the MIB in the first SSB;

[0203] Layer 1 load of PBCH;

[0204] System frame number;

[0205] Other system information;

[0206] Control resource set (CORESET) 0;

[0207] Search space 0;

[0208] Random access message 2 or message B;

[0209] Random access message 4;

[0210] Paging Early Indication (PEI);

[0211] Downlink Control Information (DCI) for scheduling paging.

[0212] The relevant parameters of the first measurement signal include at least one of the following:

[0213] 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 frequency domain position of the repetition (e.g., whether the frequency domain position of the repetition is higher or lower than the frequency domain of the first SSB), and the repetition pattern;

[0214] 2) density of the first measurement signal;

[0215] 3) Parameters of the second signal, including at least one of the following: density of the second signal, frequency domain position of the second signal (e.g., the interval between the frequency domain positions of the second signal and the first signal);

[0216] 4) 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.

[0217] In the embodiment of the present application, the terminal can determine the relevant parameters of the first measurement signal based on the above method, so that the terminal can better perform time-frequency estimation based on the first measurement signal, effectively improving the downlink transmission performance of the terminal.

[0218] 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:

[0219] Step 401: The network-side device sends a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal.

[0220] The first measurement signal includes at least one of the following:

[0221] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0222] a frequency domain extension portion of the first signal of the first SSB;

[0223] a second signal; wherein 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.

[0224] Optionally, the first signal includes at least one of the following:

[0225] Synchronous signal;

[0226] PBCH;

[0227] DMRS of PBCH;

[0228] Broadcast channel for other system messages.

[0229] Optionally, the M-1 repetitions of the first signal in the frequency domain satisfy at least one of the following:

[0230] The SSB index corresponding to the M-1 repetitions is the same as the index corresponding to the first SSB;

[0231] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0232] At least some of the signals in the repeated signal group correspond to the same quasi-co-site QCL reference relationship;

[0233] The signals in the repeated signal group are spaced apart by X frequency domain units in the frequency domain, where X ≥ 0;

[0234] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the frequency domain.

[0235] Optionally, the frequency domain resources occupied by the frequency domain extension part of the first signal meet at least one of the following conditions:

[0236] is within the first SSB bandwidth;

[0237] Located outside the first SSB bandwidth.

[0238] Optionally, when there is at least one other signal or reserved resource on the symbol occupied by the first signal, the frequency domain extension part does not occupy at least one of the other signals or reserved resources, and the other signal is a signal other than the first signal.

[0239] Optionally, the second signal includes at least one of the following:

[0240] Second SSB;

[0241] Other synchronization signals different from the synchronization signal in the first SSB;

[0242] Other reference signals different from the reference signal in the first SSB.

[0243] Optionally, the second SSB satisfies at least one of the following:

[0244] The second SSB does not include a PBCH;

[0245] The second SSB includes at least one synchronization signal.

[0246] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0247] There is a time domain interval between each of the at least two synchronization signals;

[0248] The at least two synchronization signals occupy at least one time slot;

[0249] The at least two synchronization signals occupy the same frequency domain resources.

[0250] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0251] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0252] The second SSB has the same QCL reference relationship as the first SSB;

[0253] The second SSB has the same index as the first SSB;

[0254] The cell identifier of the second SSB is the same as that of the first SSB;

[0255] The second SSB is aligned with a preset time domain position of the first SSB. Optionally, the second signal is spaced apart from the first signal of the first SSB by Y frequency domain units, where Y≥0.

[0256] Optionally, the frequency domain density of the first measurement signal is 1 / N of the frequency domain density of the first signal or the first SSB, where N≥1.

[0257] Optionally, the transmission resource of the first measurement signal includes at least one of the following:

[0258] at least a portion of a transmission opportunity of the first SSB;

[0259] At least part of the transmission frequency domain resources of the first SSB.

[0260] Optionally, the method further includes:

[0261] The network-side device determines a transmission resource of the first measurement signal by using a first parameter of the first SSB, where the first parameter includes at least one of the following:

[0262] sequence-related parameters of the first SSB;

[0263] frequency domain parameters of the first SSB;

[0264] The time domain parameters of the first SSB.

[0265] Optionally, the method further includes:

[0266] The network-side device determines or configures relevant parameters of the first measurement signal based on at least one of the following:

[0267] the index of the first SSB;

[0268] a synchronization signal in the first SSB;

[0269] a PBCH DMRS in the first SSB;

[0270] the MIB in the first SSB;

[0271] Layer 1 load of PBCH;

[0272] System frame number;

[0273] Other system messages;

[0274] Control resource set CORESET 0;

[0275] Search space 0;

[0276] Random access message 2 or message B;

[0277] Random access message 4;

[0278] PEI;

[0279] DCI for scheduling paging.

[0280] 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.

[0281] In an embodiment of the present application, the network side device sends a first tracking signal to the terminal, and the terminal can perform measurements based on the first tracking signal; wherein, the first tracking signal includes a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: M-1 repetitions of the first signal of the first SSB in the frequency domain, a frequency domain extension part of the first signal of the first SSB, and a second signal. wherein, the first measurement signal can be understood as an enhanced signal of the first SSB in the frequency domain, that is, the network side device performs signal enhancement on the first SSB in the frequency domain to generate the first tracking signal, and the terminal can perform measurements based on the frequency domain enhanced first tracking signal, so that terminals in connected and non-connected states can better perform time-frequency tracking, especially so that the terminal can obtain better time-frequency tracking performance in the initial access and random access stages, which helps to improve the downlink transmission performance of the terminal.

[0282] 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.

[0283] 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:

[0284] A receiving module 501 is configured to receive a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal;

[0285] a measurement module 502, configured to perform measurement based on the first tracking signal;

[0286] The first measurement signal includes at least one of the following:

[0287] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0288] a frequency domain extension portion of the first signal of the first SSB;

[0289] Second signal;

[0290] 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.

[0291] Optionally, the first signal includes at least one of the following:

[0292] Synchronous signal;

[0293] Physical Broadcast Channel PBCH;

[0294] PBCH demodulation reference signal DMRS;

[0295] Broadcast channel for other system messages.

[0296] Optionally, the M-1 repetitions of the first signal in the frequency domain satisfy at least one of the following:

[0297] The SSB index corresponding to the M-1 repetitions is the same as the index corresponding to the first SSB;

[0298] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0299] At least some of the signals in the repeated signal group correspond to the same quasi-co-site QCL reference relationship;

[0300] The signals in the repeated signal group are spaced apart by X frequency domain units in the frequency domain, where X ≥ 0;

[0301] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the frequency domain.

[0302] Optionally, the frequency domain resources occupied by the frequency domain extension part of the first signal meet at least one of the following conditions:

[0303] is within the first SSB bandwidth;

[0304] Located outside the first SSB bandwidth.

[0305] Optionally, when there is at least one other signal or reserved resource on the symbol occupied by the first signal, the frequency domain extension part does not occupy at least one of the other signals or reserved resources, and the other signal is a signal other than the first signal.

[0306] Optionally, the second signal includes at least one of the following:

[0307] Second SSB;

[0308] Other synchronization signals different from the synchronization signal in the first SSB;

[0309] Other reference signals different from the reference signal in the first SSB.

[0310] Optionally, the second signal includes at least one of the following:

[0311] Second SSB;

[0312] Other synchronization signals different from the synchronization signal in the first SSB;

[0313] Other reference signals different from the reference signal in the first SSB.

[0314] Optionally, the second SSB satisfies at least one of the following:

[0315] The second SSB does not include a PBCH;

[0316] The second SSB includes at least one synchronization signal.

[0317] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0318] There is a time domain interval between each of the at least two synchronization signals;

[0319] The at least two synchronization signals occupy at least one time slot;

[0320] The at least two synchronization signals occupy the same frequency domain resources.

[0321] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0322] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0323] The second SSB has the same QCL reference relationship as the first SSB;

[0324] The second SSB has the same index as the first SSB;

[0325] The cell identifier of the second SSB is the same as that of the first SSB;

[0326] The second SSB is aligned with a preset time domain position of the first SSB.

[0327] Optionally, the second signal is separated from the first signal of the first SSB by Y frequency domain units, where Y≥0.

[0328] Optionally, the frequency domain density of the first measurement signal is 1 / N of the frequency domain density of the first signal or the first SSB, where N≥1.

[0329] Optionally, the device further comprises:

[0330] A first determining module is configured to determine a first bandwidth, where the first bandwidth is related to at least one of the following:

[0331] the bandwidth of the first SSB;

[0332] a bandwidth of the first signal;

[0333] The number of physical resource blocks (PRBs);

[0334] The initial bandwidth portion where the first SSB is located;

[0335] at least one bandwidth portion currently activated;

[0336] the bandwidth of at least one frequency band or carrier unit;

[0337] at least one frequency band corresponding to multiple cells having the same downlink timing;

[0338] pre-agreed bandwidth;

[0339] The first bandwidth is greater than or equal to the bandwidth of the first signal or the first SSB.

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

[0341] the first signal;

[0342] M-1 repetitions of the first signal in the frequency domain;

[0343] the frequency domain extension part;

[0344] the second signal.

[0345] Optionally, the transmission resource of the first measurement signal includes at least one of the following:

[0346] at least a portion of a transmission opportunity of the first SSB;

[0347] At least part of the transmission frequency domain resources of the first SSB.

[0348] Optionally, the device is further used for:

[0349] The transmission resource of the first measurement signal is determined by using a first parameter of the first SSB, where the first parameter includes at least one of the following:

[0350] sequence-related parameters of the first SSB;

[0351] frequency domain parameters of the first SSB;

[0352] The time domain parameters of the first SSB.

[0353] Optionally, the device further comprises:

[0354] A processing module is used 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 receiving the first tracking signal.

[0355] Optionally, the device is further used for:

[0356] Determining the relevant parameters of the first measurement signal based on at least one of the following:

[0357] the index of the first SSB;

[0358] a synchronization signal in the first SSB;

[0359] a PBCH DMRS in the first SSB;

[0360] A master information block MIB in the first SSB;

[0361] Layer 1 load of PBCH;

[0362] System frame number;

[0363] Other system messages;

[0364] Control resource set CORESET 0;

[0365] Search space 0;

[0366] Random access message 2 or message B;

[0367] Random access message 4;

[0368] Paging Advance Indication PEI;

[0369] Downlink control information DCI for scheduling paging.

[0370] In an embodiment of the present application, the first tracking signal includes a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: M-1 repetitions of the first signal of the first SSB in the frequency domain, a frequency domain extension portion of the first signal of the first SSB, and a second signal. The first measurement signal can be understood as an enhanced signal of the first SSB in the frequency domain, that is, the network side device performs signal enhancement on the first SSB in the frequency domain to generate the first tracking signal, and the device (terminal) can perform measurements based on the frequency domain enhanced first tracking signal, so that terminals in connected and non-connected states can better perform time-frequency tracking, which helps to improve the downlink transmission performance of the terminal.

[0371] 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.

[0372] 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.

[0373] 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:

[0374] The sending module 601 is configured to send a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal, where the first measurement signal includes at least one of the following:

[0375] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0376] a frequency domain extension portion of the first signal of the first SSB;

[0377] Second signal;

[0378] 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.

[0379] Optionally, the first signal includes at least one of the following:

[0380] Synchronous signal;

[0381] PBCH;

[0382] DMRS of PBCH;

[0383] Broadcast channel for other system messages.

[0384] Optionally, the M-1 repetitions of the first signal in the frequency domain satisfy at least one of the following:

[0385] The SSB index corresponding to the M-1 repetitions is the same as the index corresponding to the first SSB;

[0386] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0387] At least some of the signals in the repeated signal group correspond to the same quasi-co-site QCL reference relationship;

[0388] The signals in the repeated signal group are spaced apart by X frequency domain units in the frequency domain, where X ≥ 0;

[0389] The repeated signal group includes M-1 repetitions of the first SSB and the first signal in the frequency domain.

[0390] Optionally, the frequency domain resources occupied by the frequency domain extension part of the first signal meet at least one of the following conditions:

[0391] is within the first SSB bandwidth;

[0392] Located outside the first SSB bandwidth.

[0393] Optionally, when there is at least one other signal or reserved resource on the symbol occupied by the first signal, the frequency domain extension part does not occupy at least one of the other signals or reserved resources, and the other signal is a signal other than the first signal.

[0394] Optionally, the second signal includes at least one of the following:

[0395] Second SSB;

[0396] Other synchronization signals different from the synchronization signal in the first SSB;

[0397] Other reference signals different from the reference signal in the first SSB.

[0398] Optionally, the second SSB satisfies at least one of the following:

[0399] The second SSB does not include a PBCH;

[0400] The second SSB includes at least one synchronization signal.

[0401] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0402] There is a time domain interval between each of the at least two synchronization signals;

[0403] The at least two synchronization signals occupy at least one time slot;

[0404] The at least two synchronization signals occupy the same frequency domain resources.

[0405] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0406] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0407] The second SSB has the same QCL reference relationship as the first SSB;

[0408] The second SSB has the same index as the first SSB;

[0409] The cell identifier of the second SSB is the same as that of the first SSB;

[0410] The second SSB is aligned with a preset time domain position of the first SSB.

[0411] Optionally, the second signal is separated from the first signal of the first SSB by Y frequency domain units, where Y≥0.

[0412] Optionally, the frequency domain density of the first measurement signal is 1 / N of the frequency domain density of the first signal or the first SSB, where N≥1.

[0413] Optionally, the transmission resource of the first measurement signal includes at least one of the following:

[0414] at least a portion of a transmission opportunity of the first SSB;

[0415] At least part of the transmission frequency domain resources of the first SSB.

[0416] Optionally, the device further comprises:

[0417] A second determining module is configured to determine a transmission resource of the first measurement signal by using a first parameter of the first SSB, where the first parameter includes at least one of the following:

[0418] sequence-related parameters of the first SSB;

[0419] frequency domain parameters of the first SSB;

[0420] The time domain parameters of the first SSB.

[0421] Optionally, the device is further used for:

[0422] Determine or configure relevant parameters of the first measurement signal based on at least one of the following:

[0423] the index of the first SSB;

[0424] a synchronization signal in the first SSB;

[0425] a PBCH DMRS in the first SSB;

[0426] the MIB in the first SSB;

[0427] Layer 1 load of PBCH;

[0428] System frame number;

[0429] Other system messages;

[0430] Control resource set CORESET 0;

[0431] Search space 0;

[0432] Random access message 2 or message B;

[0433] Random access message 4;

[0434] PEI;

[0435] DCI for scheduling paging.

[0436] In an embodiment of the present application, the device sends a first tracking signal to the terminal, and the first tracking signal includes a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: M-1 repetitions of the first signal of the first SSB in the frequency domain, a frequency domain extension part of the first signal of the first SSB, and a second signal. The first measurement signal can be understood as an enhanced signal of the first SSB in the frequency domain, that is, the device performs signal enhancement on the first SSB in the frequency domain to generate the first tracking signal. The terminal can perform measurements based on the frequency 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 performance in the initial access and random access stages, which helps to improve the downlink transmission performance of the terminal.

[0437] 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.

[0438] 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.

[0439] The present application also provides a terminal comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in 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.

[0440] 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.

[0441] 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.

[0442] 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.

[0443] 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.

[0444] 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.

[0445] 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.

[0446] The radio frequency unit 801 is configured to receive a first tracking signal, where the first tracking signal includes a first synchronization signal block SSB and a first measurement signal;

[0447] Processor 810, configured to perform measurement based on the first tracking signal;

[0448] The first measurement signal includes at least one of the following:

[0449] The first signal of the first SSB is repeated M-1 times in the frequency domain, where M is a positive integer greater than 1;

[0450] a frequency domain extension portion of the first signal of the first SSB;

[0451] Second signal;

[0452] 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.

[0453] 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 a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: M-1 repetitions of the first signal of the first SSB in the frequency domain, a frequency domain extension portion of the first signal of the first SSB, and a second signal. wherein, the first measurement signal can be understood as an enhanced signal of the first SSB in the frequency domain, that is, the network-side device performs signal enhancement on the first SSB in the frequency domain to generate the first tracking signal, and the terminal can perform measurement based on the frequency-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 performance during initial access and random access stages, which helps to improve the downlink transmission performance of the terminal.

[0454] 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.

[0455] 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.

[0456] 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.

[0457] 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.

[0458] 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.

[0459] The network side device may further include a network interface 96, which is, for example, a Common Public Radio Interface (CPRI).

[0460] 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.

[0461] 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.

[0462] 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.

[0463] 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.

[0464] 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.

[0465] 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.

[0466] 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.

[0467] 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.

[0468] 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.

[0469] 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 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: The M - 1 times repetition of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1; The frequency domain extended part of the first signal of the first SSB; A second signal; Wherein, 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.

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

3. The method according to claim 1, wherein The M - 1 times repetition of the first signal in the frequency domain satisfies at least one of the following: The SSB index corresponding to the M - 1 times repetition is the same as the index corresponding to the first SSB; The power corresponding to the M - 1 times repetition 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 frequency domain units apart in the frequency domain, where X ≥ 0; Wherein, the repeated signal group includes the first SSB and the M - 1 times repetition of the first signal in the frequency domain.

4. The method according to any one of claims 1-3, wherein, The frequency domain resources occupied by the frequency domain extended part of the first signal satisfy at least one of the following: Located within the bandwidth of the first SSB; Located outside the bandwidth of the first SSB.

5. The method according to any one of claims 1-4, wherein When there is at least one of other signals or reserved resources on the symbols occupied by the first signal, the frequency domain extended part does not occupy at least one of the other signals or reserved resources, and the other signals are signals other than the first signal.

6. The method according to any one of claims 1-5, wherein, The second signal includes at least one of the following: A second SSB; Other synchronization signals different from the synchronization signals in the first SSB; Other reference signals different from the reference signals in the first SSB.

7. The method according to claim 6, 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.

8. The method according to claim 7, 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.

9. The method according to claim 6, 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 cell identifier of the second SSB is the same as the cell identifier of the first SSB; The second SSB is aligned with the preset time domain position of the first SSB.

10. The method according to any one of claims 1-9, wherein, The second signal is spaced Y frequency domain units apart from the first signal of the first SSB, where Y ≥ 0.

11. The method according to any one of claims 1-10, wherein, The frequency-domain density of the first measurement signal is 1 / N of the frequency-domain density of the first signal or the first SSB, where N≥1.

12. The method according to any one of claims 1-11 further comprises: The terminal determines a first bandwidth, which is related to at least one of the following: The bandwidth of the first SSB; The bandwidth of the first signal; The number of physical resource blocks (PRBs); The initial bandwidth part where the first SSB is located; At least one currently active bandwidth part; The bandwidth of at least one frequency band or carrier unit; At least one frequency band corresponding to multiple cells with the same downlink timing; A pre-agreed bandwidth; Wherein, the first bandwidth is greater than or equal to the bandwidth of the first signal or the first SSB.

13. The method according to claim 12, wherein, The first bandwidth includes the bandwidth of at least one of the following: The first signal; The M-1 times repetition of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1; The frequency-domain expansion part; The second signal.

14. The method according to any one of claims 1-13, wherein, The transmission resources of the first measurement signal include 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 resources of the first SSB.

15. The method according to any one of claims 1-14 further comprises: The terminal determines the transmission resources of the first measurement signal through the first parameter of the first SSB, where 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.

16. The method according to any one of claims 1-15 further comprises: Starting from the 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 the QCL reference.

17. The method according to any one of claims 1-16 further comprises: The terminal determines the relevant parameters of the first measurement signal 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; The random access message 4; The paging early indication (PEI); The downlink control information (DCI) for scheduling paging.

18. A method for processing a tracking signal, comprising: The network-side device sends a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: The M-1 times repetition of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1; The frequency-domain expansion part of the first signal of the first SSB; 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.

19. The method according to claim 18, wherein The first signal includes at least one of the following: The synchronization signal; The PBCH; The DMRS of the PBCH; The broadcast channel of other system messages.

20. The method according to claim 18, wherein The M-1 repetitions of the first signal in the frequency domain satisfy at least one of the following: The SSB index corresponding to the M-1 repetitions is the same as the index corresponding to 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 some of the signals in the repeated signal group are the same; The signals in the repeated signal group are spaced X frequency domain units apart in the frequency domain, where X ≥ 0; Wherein, the repeated signal group includes the first SSB and the M-1 repetitions of the first signal in the frequency domain.

21. The method according to claim 18, wherein, The frequency domain resources occupied by the frequency domain extended part of the first signal satisfy at least one of the following: Located within the bandwidth of the first SSB; Located outside the bandwidth of the first SSB.

22. The method according to claim 18, wherein, When there is at least one of other signals or reserved resources on the symbol occupied by the first signal, the frequency domain extended part does not occupy at least one of the other signals or reserved resources, and the other signals are signals other than the first signal.

23. The method according to any one of claims 18 - 22, wherein The second signal includes at least one of the following: A second SSB; Other synchronization signals different from the synchronization signals in the first SSB; Other reference signals different from the reference signals in the first SSB.

24. The method according to claim 23, 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.

25. The method according to claim 24, 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.

26. The method according to claim 23, 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 cell identifier of the second SSB is the same as the cell identifier of the first SSB; The second SSB is aligned with the preset time domain position of the first SSB.

27. The method according to any one of claims 18 - 26, wherein, The second signal is spaced Y frequency domain units apart from the first signal of the first SSB, where Y ≥ 0.

28. The method according to any one of claims 18-27, wherein The frequency domain density of the first measurement signal is 1 / N of the frequency domain density of the first signal or the first SSB, where N ≥ 1.

29. The method according to any one of claims 18 - 28, wherein, The transmission resources of the first measurement signal include 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 resources of the first SSB.

30. The method according to any one of claims 18-29, further comprising: The network side device determines the transmission resources of the first measurement signal through the first parameter of the first SSB, and 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.

31. The method according to any one of claims 18-30, further comprising: The network - side device determines or configures the relevant parameters of the first measurement signal 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 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; Message 2 or Message B of random access; Message 4 of random access; PEI; The DCI for scheduling paging.

32. A processing device for tracking signals, comprising: A receiving module, configured to receive a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal; A measurement module, configured to perform measurements based on the first tracking signal; Wherein, the first measurement signal includes at least one of the following: The M - 1 times repetition of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1; The frequency - domain extended part of the first signal of the first SSB; A second signal; Wherein, 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.

33. The apparatus according to claim 32, wherein, The M - 1 times repetition of the first signal in the frequency domain satisfies at least one of the following: The SSB index corresponding to the M - 1 times repetition is the same as the index corresponding to the first SSB; The power corresponding to the M - 1 times repetition 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 frequency - domain units in the frequency domain, where X≥0; Wherein, the repeated signal group includes the first SSB and the M - 1 times repetition of the first signal in the frequency domain.

34. The device according to claim 32 or 33, wherein, The second signal includes at least one of the following: A second SSB; Other synchronization signals different from the synchronization signal in the first SSB; Other reference signals different from the reference signal in the first SSB.

35. The device according to any one of claims 32 - 34, further comprising: A first determination module, configured to determine a first bandwidth, where the first bandwidth is related to at least one of the following: The bandwidth of the first SSB; The bandwidth of the first signal; The number of physical resource blocks PRB; The initial bandwidth part where the first SSB is located; At least one currently active bandwidth part; The bandwidth of at least one frequency band or carrier unit; At least one frequency band corresponding to multiple cells with the same downlink timing; A pre - agreed bandwidth; Wherein, the first bandwidth is greater than or equal to the bandwidth of the first signal or the first SSB.

36. The device according to any one of claims 32 - 35, wherein, The transmission resources of the first measurement signal include at least one of the following: At least part of the transmission opportunities of the first SSB; At least part of the transmission frequency - domain resources of the first SSB.

37. A processing device for tracking signals, comprising: A sending module, configured to send a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal, and the first measurement signal includes at least one of the following: The M - 1 times repetition of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1; The frequency-domain extended part of the first signal of the first SSB; The second signal; Wherein, 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.

38. The apparatus according to claim 37, wherein, The M-1 times of repetition of the first signal in the frequency domain satisfy at least one of the following: The SSB index corresponding to the M-1 times of repetition is the same as the index corresponding to the first SSB; The power corresponding to the M-1 times of repetition 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 frequency-domain units in the frequency domain, where X≥0; Wherein, the repeated signal group includes the first SSB and the M-1 times of repetition of the first signal in the frequency domain.

39. The apparatus according to claim 37 or 38, wherein, The second signal includes at least one of the following: The second SSB; Other synchronization signals different from the synchronization signals in the first SSB; Other reference signals different from the reference signals in the first SSB.

40. The apparatus according to any one of claims 37-39, further comprising: A second determination module, configured to determine the transmission resources of the first measurement signal according to the first parameter of the first SSB, where 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.

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 method for processing a tracking signal according to any one of claims 1-17 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 method for processing a tracking signal according to any one of claims 18-31 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 method for processing a tracking signal according to any one of claims 1-17 are implemented, or the steps of the method for processing a tracking signal according to any one of claims 18-31 are implemented.

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