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

Abstract

The invention discloses a tracking signal processing method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the tracking signal processing method comprises the steps that the terminal receives a first tracking signal, and the first tracking signal comprises a first SSB and a first measurement signal; the terminal performs measurement based on the first tracking signal; the first measurement signal comprises at least one of the following items: (M-1) times of repetition of a first signal of the first SSB in a frequency domain, and M is a positive integer greater than 1; a frequency domain extension portion of a 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.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a method, apparatus, terminal, and network-side device for processing tracking signals. Background Art

[0002] In the initial access phase of New Radio (NR), the terminal performs time-frequency synchronization based on the Synchronization Signal and PBCH block (SSB). However, since the SSB occupies a small bandwidth and the time-domain symbols and time span it occupies are small, the terminal cannot obtain good time-frequency tracking quality in the initial access, random access, and other phases, resulting in poor reception performance of the terminal's downlink signal. Therefore, it is necessary to consider enhancing the time-frequency tracking performance of the SSB in future communication systems. Summary of the Invention

[0003] Embodiments of this application provide a method, apparatus, terminal, and network-side device for processing tracking signals, which can solve the problem that the terminal cannot obtain good time-frequency tracking quality in the initial access, random access, and other phases, resulting in poor reception performance of the terminal's downlink signal.

[0004] In a first aspect, a method for processing a tracking signal is provided, including:

[0005] The terminal receives a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal;

[0006] The terminal performs measurements based on the first tracking signal;

[0007] Among them, the first measurement signal includes at least one of the following:

[0008] The (M - 1)-th repetition of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1;

[0009] The frequency-domain extended part of the first signal of the first SSB;

[0010] A second signal;

[0011] Among them, 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.

[0012] In a second aspect, a method for processing a tracking signal is provided, including:

[0013] 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:

[0014] The M-1 times repetition in the frequency domain of the first signal of the first SSB, where M is a positive integer greater than 1;

[0015] The frequency domain extended part of the first signal of the first SSB;

[0016] A second signal;

[0017] 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.

[0018] In a third aspect, a processing device for tracking signals is provided, including:

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

[0020] A measuring module, configured to perform measurements based on the first tracking signal;

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

[0022] The M-1 times repetition in the frequency domain of the first signal of the first SSB, where M is a positive integer greater than 1;

[0023] The frequency domain extended part of the first signal of the first SSB;

[0024] A second signal;

[0025] 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.

[0026] In a fourth aspect, a processing device for tracking signals is provided, including:

[0027] 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:

[0028] The M-1 times repetition in the frequency domain of the first signal of the first SSB, where M is a positive integer greater than 1;

[0029] The frequency domain extended part of the first signal of the first SSB;

[0030] A second signal;

[0031] 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.

[0032] In a fifth aspect, a terminal is provided, which includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0033] In a sixth aspect, a terminal is provided, including a processor and a communication interface. The communication interface is configured to receive a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal. The processor is configured to perform measurements based on the first tracking signal. The first measurement signal includes at least one of the following:

[0034] M - 1 repetitions of a first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1;

[0035] a frequency - domain extended part of the first signal of the first SSB;

[0036] a second signal;

[0037] where 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.

[0038] In an eighth aspect, a network - side device is provided, which includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0039] In a ninth aspect, a readable storage medium is provided. The readable storage medium stores a program or instructions. When the program or instructions are 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.

[0040] M - 1 repetitions of a first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1;

[0041] a frequency - domain extended part of the first signal of the first SSB;

[0042] a second signal;

[0043] where 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.

[0044] In a ninth aspect, a readable storage medium is provided. The readable storage medium stores a program or instructions. When the program or instructions are 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.

[0045] In a tenth aspect, a wireless communication system is provided, including: a terminal and a network-side device. 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.

[0046] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the first aspect or the method described in the second aspect.

[0047] In a twelfth aspect, a computer program / program product is provided. 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.

[0048] In the embodiments of the present application, the terminal receives a first tracking signal sent by the network-side device, and then performs measurements based on the first tracking signal. Among them, 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-1th repetition of the first signal of the first SSB in the frequency domain, the frequency-domain extended part of the first signal of the first SSB, and a second signal. Among them, the first measurement signal can be understood as the enhanced signal of the first SSB in the frequency domain, that is, the network-side device enhances the signal of 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 the terminals in the connected state and the non-connected state can better perform time-frequency tracking. In particular, the terminal can also obtain better time-frequency tracking performance during the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal. Description of the Drawings

[0049] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0050] Figure 2 is a flowchart of a method for processing a tracking signal provided by the embodiments of the present application;

[0051] Figure 3a is a schematic diagram of the first SSB in a method for processing a tracking signal provided by the embodiments of the present application;

[0052] Figure 3b is a schematic diagram of the first SSB in a method for processing a tracking signal provided by the embodiments of the present application;

[0053] Figure 3c is a schematic diagram of the first SSB in a method for processing a tracking signal provided by the embodiments of the present application;

[0054] Figure 3d It is the fourth schematic diagram of the first SSB in a method for processing a tracking signal provided by an embodiment of the present application;

[0055] Figure 3e It is the fifth schematic diagram of the first SSB in a method for processing a tracking signal provided by an embodiment of the present application;

[0056] Figure 4 It is a flowchart of another method for processing a tracking signal provided by an embodiment of the present application;

[0057] Figure 5 It is a structural diagram of a device for processing a tracking signal provided by an embodiment of the present application;

[0058] Figure 6 It is a structural diagram of another device for processing a tracking signal provided by an embodiment of the present application;

[0059] Figure 7 It is a structural diagram of a communication device provided by an embodiment of the present application;

[0060] Figure 8 It is a structural diagram of a terminal provided by an embodiment of the present application;

[0061] Figure 9 It is a structural diagram of a network - side device provided by an embodiment of the present application. Detailed implementation manners

[0062] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0063] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0064] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0065] It should be noted that the technology described in the embodiments of this 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 this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses the NR term in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0066] Figure 1The block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a 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, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be called a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be called a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station may 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, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0067] The core network device may include but is not limited to at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0068] For better understanding, the following explains the relevant concepts involved in the embodiments of this application.

[0069] Synchronization signal block:

[0070] In the NR system, the Synchronization Signal and PBCH block (SSB, also known as the synchronization signal block) is used for initial access. Among them, the SSB consists of the Primary Synchronization Signals (PSS), the Secondary Synchronization Signals (SSS), the Physical Broadcast Channel (PBCH), and the Demodulation Reference Signal (DMRS) of the PBCH. The PSS and SSS are used for coarse time-frequency synchronization, the PBCH is used to carry the Master Information Block (MIB) of the broadcast message, and the DMRS of the PBCH is used for the demodulation of the PBCH. In addition, the entire SSB occupies 4 Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain and up to 20 Resource Blocks (RB) in the frequency domain. Due to the limited time-frequency occupied resources of the SSB, only relatively preliminary time-frequency coarse synchronization can be performed based on the SSB.

[0071] When the terminal receives the SSB, the terminal can first detect the PSS sequence, and according to the sequence correlation, obtain the physical cell identifier (Identifier, ID) and obtain preliminary time-frequency synchronization; then detect the SSS, and according to the sequence correlation, obtain the physical cell ID, so as to obtain the complete physical cell ID (Physical Cell Identifier, PCI), that is the terminal can perform further adjustment of the frequency offset based on the PSS and SSS, and then the terminal detects the DMRS of the PBCH for channel estimation and demodulates the PBCH.

[0072] In the embodiments of this application, the synchronization signal block may include at least one of the following: synchronization signal, broadcast signal, broadcast channel (PBCH), demodulation reference signal, reference signal / synchronization signal for time domain and / or frequency domain parameter tracking, broadcast channel of other system messages, etc.

[0073] The PSS and SSS include at least one of the following: synchronization sequence, synchronization pilot, reference signal / synchronization signal for time domain and / or frequency domain parameter tracking.

[0074] The PBCH includes at least one of the following: synchronization channel, demodulation reference signal, broadcast channel for the master information block, and broadcast channel for other system messages.

[0075] Quasi co-location (QCL) reference:

[0076] In the NR system, QCL means that 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 can be inferred from another antenna port.

[0077] Four different types of QCL reference relationships are designed in NR to cope with different transmission scenarios. The specific QCL reference type qcl-Type is as follows:

[0078] 1) Type A: {Doppler frequency offset, Doppler spread, average delay, delay spread}

[0079] 2) Type B: {Doppler frequency offset, Doppler spread}

[0080] 3) Type C: {Doppler frequency offset, average delay}

[0081] 4) Type D: {Spatial reception parameters}

[0082] Among them, before the Radio Resource Control (RRC) connected state, the reference source of QCL reference Type A for the transmission of the Physical Downlink Control Channel (PDCCH) and the Physical Downlink Shared Channel (PDSCH) is the SSB. After the terminal enters the RRC connected state, in order to obtain more refined time-frequency tracking performance, the network side can configure a tracking reference signal (TRS) for time-frequency fine synchronization. At this time, the reference source of QCL reference Type A for the transmission of the PDCCH and the PDSCH is the TRS.

[0083] In the initial access stage of NR, due to the small bandwidth occupied by the SSB and the small number of time-domain symbols occupied, the time-frequency synchronization accuracy based on the SSB is relatively rough. And the TRS is generally used for time-frequency fine synchronization after the terminal enters the RRC connected state, so that the terminal cannot obtain good time-frequency tracking quality in the initial access, random access and other stages, thus limiting the reception performance of the downlink signal. To address these problems, the embodiments of this application propose a method for processing tracking signals.

[0084] The following will, with reference to the accompanying drawings, elaborate on the tracking signal processing method, apparatus, and related equipment provided by the embodiments of the present application through some embodiments and their application scenarios.

[0085] Please refer to Figure 2 , Figure 2 which is a flowchart of a method for processing a tracking signal provided by an embodiment of the present application. The method is applied to a terminal. As Figure 2 shown, the method includes the following steps:

[0086] Step 201: The terminal receives a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal;

[0087] Step 202: The terminal performs measurements based on the first tracking signal.

[0088] Among them, the first measurement signal includes at least one of the following:

[0089] M - 1 repetitions of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1;

[0090] The frequency domain extended part of the first signal of the first SSB;

[0091] A second signal;

[0092] Among them, 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.

[0093] Optionally, the first signal includes at least one of the following:

[0094] Synchronization signals, where the synchronization signals include at least one of the following: PSS, SSS, other synchronization signals;

[0095] PBCH, including the DMRS of PBCH;

[0096] The DMRS of PBCH;

[0097] Broadcast channels of other system messages.

[0098] In the embodiments 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 the SSB for the initial access of the terminal. The terminal can receive the first SSB, first perform conventional initial access (for example, including demodulation of broadcast messages), and then measure the first measurement signal. Alternatively, the terminal can also receive the first SSB, first perform preliminary time-frequency synchronization, then measure the first measurement signal to obtain time-frequency fine synchronization, and then perform initial access. Alternatively, the terminal can also, after receiving the first SSB, first determine the information of the first measurement signal, and then jointly measure the first SSB and the first measurement signal.

[0099] 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 can be all signals (or channels) in the first SSB, that is, M - 1 repetitions of all signals (or channels) in the first SSB are performed in the frequency domain. Alternatively, the first signal can be part of the signals in the first SSB. For example, when performing frequency domain repetition, if only the performance of time-frequency synchronization needs to be improved, it is not necessary to repeat all the signals of the first SSB, and only part of the signals need to be repeated, such as repeating one or more of the signals. For example, please refer to Figure 3a , the first signal only includes synchronization signals (assumed to be synchronization signal 1 and synchronization signal 2), Figure 3a An example of three repetitions (repetition #1, repetition #2, repetition #3, that is, M = 4) is given in Figure 3a It can be seen from that after three repetitions of the first signal (that is, synchronization signal 1 and synchronization signal 2) in the first SSB in the frequency domain, the measurement bandwidth of the synchronization signal increases to three times, which is more conducive to accurately performing time-frequency estimation.

[0100] In the embodiments 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, and thus obtaining a measurement gain in the frequency domain.

[0101] It should be noted that the first signals in the M - 1 repetitions can be different. For example, part of the signals in a certain repetition are PSS and SSS, while part of the signals in another repetition are SSS.

[0102] Optionally, the M - 1 repetitions of the first signal in the frequency domain satisfy at least one of the following:

[0103] The SSB index corresponding to the M - 1 repetitions is the same as the index corresponding to the first SSB, where the index is the SSB index;

[0104] The power corresponding to the M-1 times of repetition is the same as the power corresponding to the first SSB;

[0105] The QCL reference relationships corresponding to at least some of the signals in the repeated signal group are the same, and the QCL reference relationships include but are not limited to beams and spatial filters;

[0106] The signals in the repeated signal group are spaced by X frequency domain units in the frequency domain, X≥0, and the frequency domain unit can be a resource element (RE) or a resource block (RB);

[0107] Wherein, the repeated signal group includes M-1 times of repetition in the frequency domain of the first SSB and the first signal.

[0108] It should be noted that for the QCL reference relationships corresponding to at least some of the signals in the repeated signal group to be the same, it can be that the network side device indicates which signals in the repeated signal group have the same QCL reference relationships, or it can also be that the protocol defaultly agrees on which signals in the repeated signal group have the same QCL reference relationships. For example, the protocol defaultly agrees that the QCL reference relationships corresponding to multiple repetitions between intervals of N (N≤M-1) times of repetition are the same, so that the terminal can perform more accurate time-frequency estimation based on the measurement results on these repetitions.

[0109] In addition, the QCL reference relationships corresponding to at least some of the signals in the repeated signal group can also be different, so as to increase the number of beams of the transmitted SSB under the same SSB index. At this time, how to utilize the measurement results on multiple repetitions depends on the implementation of the terminal, or to determine in some way that the QCL reference relationships corresponding to some of the signals in the repeated signal group are still the same.

[0110] It should be noted that when the M-1 times of repetition of the first signal in the frequency domain satisfy at least one of the above, the terminal can jointly process the measurement results of the M-1 times of repetition of the first signal in the frequency domain, so as to improve the performance of time-frequency tracking.

[0111] Optionally, the first measurement signal may further include a frequency domain extension part of the first signal of the first SSB, that is, to perform frequency domain (such as bandwidth) extension on the first signal in the first SSB.

[0112] For example, in some embodiments, the frequency domain expansion part may be implemented by increasing the bandwidth of the synchronization signal (i.e., the first signal) in the first SSB. The synchronization signal includes at least one of the following: PSS, synchronization signals other than PSS (including at least one of 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.

[0113] It should be noted that the bandwidths of the synchronization signals satisfy any one of the following:

[0114] The bandwidth of PSS is equal to the bandwidth of the synchronization signal other than PSS;

[0115] The bandwidth of PSS is greater than the bandwidth of the synchronization signal other than PSS;

[0116] The bandwidth of PSS is less than the bandwidth of the synchronization signal other than PSS.

[0117] Among them, when the bandwidth of PSS is equal to the bandwidth of the synchronization signal other than PSS, the terminal can effectively utilize the frequency domain positions of all synchronization signals to measure parameters such as frequency offset and Doppler spread. When the bandwidth of PSS is greater than the bandwidth of the synchronization signal other than PSS, it is beneficial to improve the measurement accuracy of parameters such as timing and delay spread for the terminal. When the bandwidth of PSS is less than the bandwidth of the synchronization signal other than PSS, it is beneficial to reduce the complexity of the terminal based on rough timing of PSS, and the terminal can perform further fine timing based on SSS.

[0118] In some other embodiments, the frequency domain expansion part may be implemented by increasing the bandwidth of the DMRS of PBCH (i.e., the first signal) in the first SSB without increasing the bandwidth of PBCH. In this case, the bandwidth of the DMRS of PBCH is greater than the bandwidth of PBCH. Thus, by increasing the bandwidth of DMRS, it is beneficial to perform joint time-frequency measurement with the synchronization signal.

[0119] In some other embodiments, the frequency domain expansion part may be implemented by increasing the bandwidths of the DMRS of PBCH and PBCH (i.e., the first signal) in the first SSB. In this case, the bandwidth of the DMRS of PBCH is equal to the bandwidth of PBCH. In this way, while increasing the bandwidth of DMRS, the bandwidth of PBCH is also increased, which is beneficial to increasing the transmission performance (improving the transmission robustness) or transmission capacity (i.e., transmitting more information) of PBCH.

[0120] It should be noted that since the bandwidths of the synchronization signal and PBCH in the first SSB may be different, when performing frequency domain expansion, it is also possible to consider within which bandwidth range to perform the expansion.

[0121] Optionally, in the embodiments of the present application, the frequency domain resources occupied by the frequency domain expansion part of the first signal satisfy at least one of the following:

[0122] Located within the bandwidth of the first SSB;

[0123] Located outside the bandwidth of the first SSB.

[0124] Exemplarily, as Figure 3b shown, taking the example of increasing the bandwidth of the PSS, assuming that the bandwidth of the PSS is less than the bandwidth of the first SSB (which can be the bandwidth occupied by the largest signal in the first SSB or the explicitly defined bandwidth), at this time, the first optional method is: increase the length of the PSS within the bandwidth of the first SSB, not exceeding the bandwidth of the first SSB (as shown in b in Figure 3b ); the second optional method is: increase the length of the PSS outside the bandwidth of the first SSB (as shown in c in Figure 3b ), at this time, it can be understood that the PSS sequence is mapped discontinuously in the frequency domain; the third optional method is: expand the length of the PSS from within the bandwidth of the first SSB to outside the bandwidth of the first SSB (as shown in d in Figure 3b ). At this time, the PSS can be continuously mapped or discontinuously mapped.

[0125] When there is at least one of other signals or reserved resources on the symbol occupied by the first signal, the frequency domain expansion 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. Among them, there may be no signal on the reserved resources. That is to say, when there is at least one of other signals or reserved resources on the symbol occupied by the first signal, the frequency domain expansion of the first signal is to skip the symbols occupied by the other signals or reserved resources and perform the frequency domain expansion of the first signal on other symbols.

[0126] Optionally, the first measurement signal may also include a second signal, that is, the first tracking signal includes the first SSB and the second signal, and the terminal jointly measures the first SSB and the second signal. In this way, it also helps to improve the accuracy of time-frequency estimation of the terminal.

[0127] In an embodiment of the present application, the terminal receives a first tracking signal sent by a network-side device and then performs 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: the M-1 times repetition of the first signal of the first SSB in the frequency domain, the frequency-domain extended part of the first signal of the first SSB, and a second signal. The first measurement signal can be understood as the enhanced signal of the first SSB in the frequency domain, that is, the network-side device enhances the signal of 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 the terminals in the connected state and the non-connected state can better perform time-frequency tracking, especially enabling the terminal to obtain better time-frequency tracking performance during the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal.

[0128] Optionally, in an embodiment of the present application, the second signal includes at least one of the following:

[0129] A second SSB;

[0130] Other synchronization signals different from the synchronization signal in the first SSB;

[0131] Other reference signals different from the reference signal in the first SSB, such as a tracking reference signal.

[0132] It should be noted that when the first measurement signal includes the second signal, there are two ways for the terminal to perform measurements based on the first tracking signal:

[0133] 1) Combine the first SSB and the second signal to form a first tracking signal and perform time-frequency measurements based on this first tracking signal;

[0134] 2) First perform preliminary measurements based on the first SSB, and then perform further fine measurements according to the second signal.

[0135] Regardless of the above first method or the second method, 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.

[0136] Optionally, in some embodiments, the second SSB satisfies at least one of the following:

[0137] The second SSB does not include PBCH;

[0138] The second SSB includes at least one synchronization signal.

[0139] It should be noted that whether the second SSB includes PBCH can be specified by the protocol or configured by the network device.

[0140] 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.

[0141] Optionally, when at least two synchronization signals are included in the second SSB, the at least two synchronization signals satisfy at least one of the following:

[0142] There is a time domain interval between each of the at least two synchronization signals. For example, the time domain intervals between each of the at least two synchronization signals are equal;

[0143] The at least two synchronization signals occupy at least one time slot;

[0144] The at least two synchronization signals occupy the same frequency domain resources.

[0145] Exemplarily, please refer to Figure 3c , Figure 3c An example of the second SSB is given. To ensure the performance of time-frequency tracking, the second SSB occupies two consecutive time slots (time slot #1 and time slot #2), and has a frequency domain interval of Y resource elements (REs) from the first SSB. The terminal can determine the frequency domain position of the second SSB based on this interval. In addition, there are 4 synchronization signals (synchronization signal 1 to synchronization signal 4) in the second SSB. The synchronization signals can be any combination of PSS, SSS, and other synchronization signals, and their bandwidth is greater than that of the synchronization signals in the first SSB. In addition, the broadcast channel in the second SSB is optional and can be present or absent. When it is present, 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.

[0146] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0147] The bandwidth of the second SSB is the same as or different from that of the first SSB;

[0148] The second SSB has the same QCL reference relationship as the first SSB. The QCL reference relationship includes, but is not limited to, beam and spatial filter;

[0149] The second SSB and the first SSB have the same index. The index can be the index of the SSB;

[0150] 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 both the first ID and the second ID corresponding to the first SSB;

[0151] The second SSB is aligned with the first SSB at a preset time domain position. For example, when the time domain is a symbol, the preset time domain position may be the first symbol, or the central symbol, or the last symbol. For example, the second SSB is aligned with the first SSB on the first symbol, or on the central symbol, or on the last symbol; Of course, the time domain may also be other units, such as time slots, etc.

[0152] 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 for measurement based on the second SSB 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 in the first SSB and the second SSB; when the bandwidth of the second SSB is less than the bandwidth of the first SSB, the terminal measures based on the second SSB, which helps the terminal reduce resource overhead.

[0153] Optionally, in the embodiment of the present application, when the first measurement signal includes the second signal, there is a gap of Y frequency domain units between the second signal and the first signal of the first SSB, 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 perform time-frequency estimation better.

[0154] 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. Here, the first SSB can also be understood as a part of the signals in the first SSB.

[0155] Exemplarily, assume that the bandwidth range within the first signal of the first SSB is bandwidth range 1, and the bandwidth range 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, so as to reduce the overall resource overhead of the terminal.

[0156] 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 the bandwidth range 2. At this time, the sequence values of the first signal on the REs repeated within the bandwidth range 2 are the same as the sequence values on the corresponding REs within the bandwidth range 1, or the sequence values of the first signal on the REs repeated within the bandwidth range 2 are remapped starting from the first sequence value according to the sequence within the bandwidth range 1.

[0157] Alternatively, the first measurement signal includes a frequency-domain extended part of the first signal of the first SSB. Assuming that the PSS within the bandwidth range 1 continuously occupies X subcarriers, then the PSS within the bandwidth range 2 occupies every B subcarriers, which can reduce the overall overhead of the PSS.

[0158] 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 Figure 3d shown, for the repetition of the synchronization signal within the bandwidth range 2, it can be seen that its frequency-domain density is 1 / 4 of the synchronization signal within the bandwidth range 1, that is, 3 REs are mapped in one RB, while the frequency-domain density of the synchronization signal within the bandwidth range 1 is 1, that is, 12 REs are mapped in one RB. In addition, the sequence values mapped on the REs (the same RE index within one RB) corresponding to the synchronization signal within the bandwidth range 2 are the same as the sequence values mapped on the corresponding REs of the synchronization signal within the bandwidth range 1.

[0159] Optionally, the frequency-domain resources within the first measurement signal bandwidth that are not occupied by the first measurement signal can be used to transmit other signals outside the first measurement signal. For example, within the bandwidth range 2, other signals can be mapped on the REs not occupied by the first measurement signal, such as the mapping of PBCH (including the DMRS of PBCH). In this way, it helps to improve the utilization of frequency-domain resources and the transmission performance of the terminal.

[0160] In the embodiments of this application, the method further includes:

[0161] The terminal determines a first bandwidth, and the first bandwidth is related to at least one of the following:

[0162] The bandwidth of the first SSB. For example, the first bandwidth is an integer multiple of the bandwidth of the first SSB;

[0163] The bandwidth of the first signal. For example, the first bandwidth is an integer multiple of the bandwidth of the first signal;

[0164] The number of Physical Resource Blocks (PRBs). For example, the first bandwidth is an integer number of PRBs;

[0165] The initial bandwidth part (BWP) where the first SSB is located, for example, the first bandwidth is the initial BWP of the first SSB;

[0166] At least one currently active bandwidth part;

[0167] The bandwidth of at least one frequency band or component carrier (CC);

[0168] At least one frequency band corresponding to multiple cells with the same downlink timing;

[0169] A pre-agreed bandwidth, for example, the first bandwidth is 52 RBs of the default agreement;

[0170] Wherein, the first bandwidth is greater than or equal to the bandwidth of the first signal or the first SSB.

[0171] It should be noted that the first bandwidth can be the bandwidth of the first tracking signal, and the first tracking signal is used for measurement, that is, the terminal needs to determine the measurement bandwidth, which further helps the terminal in the initial access phase or random access phase.

[0172] Optionally, the first bandwidth includes at least one of the following bandwidths:

[0173] The first signal;

[0174] The M - 1 times repetition of the first signal in the frequency domain;

[0175] The frequency domain extension part;

[0176] The second signal.

[0177] Exemplarily, the first bandwidth can be the sum of the bandwidths of at least two of the above. For example, the first bandwidth can be the sum of the bandwidths of the first SSB and the second signal, or the first bandwidth can be the sum of the bandwidths of the first SSB and the M - 1 times repetition of the first signal in the frequency domain, etc.

[0178] It can be understood that the network - side device can send multiple first SSBs within a period, but it is not necessarily required to perform frequency - domain enhancement on the first SSBs at all SSB transmission times (that is, to obtain the first measurement signal), so the transmission resources of the first measurement signal can be determined.

[0179] Optionally, in the embodiments of the present application, the transmission resources of the first measurement signal include at least one of the following:

[0180] At least part of the transmission times of the first SSB;

[0181] At least part of the transmission frequency domain resources of the first SSB.

[0182] Exemplarily, please refer to Figure 3e , no frequency domain enhancement is performed on transmission occasions #1 and #3 of the first SSB, that is, the first measurement signal is not included, while frequency domain enhancement is performed on transmission occasion #2, that is, the first measurement signal (including synchronized signal 1 and synchronized signal 2 with frequency domain expansion) is included.

[0183] It should be noted that the determination of the transmission resources of the first measurement signal can be configured by the network side device or be the default agreement of the protocol.

[0184] Optionally, the method further includes:

[0185] The terminal 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:

[0186] Sequence-related parameters of the first SSB, such as the synchronization sequence of the first SSB, or the scrambling method of the first SSB;

[0187] Frequency domain parameters of the first SSB;

[0188] Time domain parameters of the first SSB, for example, the time domain parameters are frame information, slot information, sub-window information, etc.

[0189] For example, taking the PSS as an example, it can be assumed that the sequences of the PSS of the first SSB on different transmission occasions or different transmission frequency domain resources are different, then the terminal can determine whether the first tracking signal currently transmitted includes the first measurement signal through the sequence of the PSS, that is, whether the first SSB in the first tracking signal has frequency domain enhancement.

[0190] It can be understood that when the first tracking signal includes the first measurement signal, after the terminal performs measurement based on the first tracking signal, the terminal obtains more accurate time-frequency synchronization. At this time, the subsequent transmitted QCL reference can be the first SSB and / or the first measurement signal.

[0191] Optionally, the method further includes:

[0192] 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.

[0193] 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, starting from the target time after the terminal receives the first tracking signal, the QCL reference source of its Type A is the first SSB, or the first measurement signal, or the first SSB and the first measurement signal (such as the set of the first SSB and the second signal). It should be noted that the terminal can first access on the first SSB (perform cell search), and then perform time-frequency fine synchronization on the first measurement signal, thereby effectively improving the downlink transmission performance of the terminal.

[0194] Optionally, in the embodiments of the present application, the method further includes:

[0195] The terminal determines the relevant parameters of the first measurement signal based on at least one of the following:

[0196] The index of the first SSB;

[0197] The synchronization signals in the first SSB, including PSS and SSS, such as the sequences, bandwidths, and frequency points corresponding to PSS and SSS;

[0198] The PBCH DMRS in the first SSB;

[0199] The MIB in the first SSB;

[0200] The layer 1 payload of PBCH;

[0201] The system frame number;

[0202] Other system information;

[0203] Control resource set (CORESET) 0;

[0204] Search space 0;

[0205] Random access message 2 or message B;

[0206] Random access message 4;

[0207] Paging Early Indication (PEI);

[0208] Downlink Control Information (DCI) for scheduling paging.

[0209] Among them, the relevant parameters of the first measurement signal include at least one of the following:

[0210] 1) The repetition parameter of the first signal of the first SSB in the frequency domain, and the repetition parameter includes 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 (for example, the frequency domain position of the repetition is higher or lower than the frequency domain of the first SSB), the repetition pattern;

[0211] 2) The density of the first measurement signal;

[0212] 3) The parameters of the second signal, including at least one of the following: the density of the second signal, the frequency domain position of the second signal (for example, the interval between the frequency domain positions of the second signal and the first signal);

[0213] 4) The parameters of the second SSB, including at least one of the following: the time - frequency position of the second SSB, the period of the second SSB, the power of the second SSB.

[0214] In the embodiments of the present application, the terminal can determine the relevant parameters of the first measurement signal based on the above - mentioned 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.

[0215] Please refer to Figure 4 , Figure 4 which is a flowchart of another method for processing a tracking signal provided by the embodiments of the present application, and the method is applied to a network - side device. As Figure 4 shown, the method includes the following steps:

[0216] Step 401, the network - side device sends a first tracking signal, and the first tracking signal includes a first SSB and a first measurement signal.

[0217] Among them, the first measurement signal includes at least one of the following:

[0218] M - 1 repetitions of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1;

[0219] The frequency - domain extended part of the first signal of the first SSB;

[0220] A second signal;

[0221] Among them, 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.

[0222] Optionally, the first signal includes at least one of the following:

[0223] A synchronization signal;

[0224] PBCH;

[0225] DMRS of PBCH;

[0226] Broadcast channels for other system information.

[0227] Optionally, at least one of the following is satisfied by the M - 1 repetitions of the first signal in the frequency domain:

[0228] The SSB index corresponding to the M - 1 repetitions is the same as the index corresponding to the first SSB;

[0229] The power corresponding to the M - 1 repetitions is the same as the power corresponding to the first SSB;

[0230] The quasi - co - location (QCL) reference relationships corresponding to at least some of the signals in the repeated signal group are the same;

[0231] The signals in the repeated signal group are spaced X frequency domain units apart in the frequency domain, where X ≥ 0;

[0232] Wherein, the repeated signal group includes the first SSB and the M - 1 repetitions of the first signal in the frequency domain.

[0233] Optionally, at least one of the following is satisfied by the frequency domain resources occupied by the frequency domain extended part of the first signal:

[0234] Located within the bandwidth of the first SSB;

[0235] Located outside the bandwidth of the first SSB.

[0236] Optionally, 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, where the other signals are signals other than the first signal.

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

[0238] Second SSB;

[0239] Other synchronization signals different from the synchronization signals in the first SSB;

[0240] Other reference signals different from the reference signals in the first SSB.

[0241] Optionally, the second SSB satisfies at least one of the following:

[0242] The second SSB does not include PBCH;

[0243] The second SSB includes at least one synchronization signal.

[0244] Optionally, when at least two synchronization signals are included in the second SSB, the at least two synchronization signals satisfy at least one of the following:

[0245] There is a time domain interval between each of the at least two synchronization signals;

[0246] The at least two synchronization signals occupy at least one time slot;

[0247] The at least two synchronization signals occupy the same frequency domain resources.

[0248] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0249] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0250] The QCL reference relationship of the second SSB is the same as that of the first SSB;

[0251] The index of the second SSB is the same as that of the first SSB;

[0252] The cell identifier of the second SSB is the same as that of the first SSB;

[0253] The second SSB is aligned with the preset time domain position of the first SSB. Optionally, there are Y frequency domain units between the second signal and the first signal of the first SSB, where Y≥0.

[0254] 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.

[0255] Optionally, the transmission resources of the first measurement signal include at least one of the following:

[0256] At least part of the transmission occasion of the first SSB;

[0257] At least part of the transmission frequency domain resources of the first SSB.

[0258] Optionally, the method further includes:

[0259] The network side device 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:

[0260] The sequence related parameter of the first SSB;

[0261] The frequency domain parameter of the first SSB;

[0262] The time domain parameter of the first SSB.

[0263] Optionally, the method further includes:

[0264] The network side device determines or configures the relevant parameters of the first measurement signal based on at least one of the following:

[0265] The index of the first SSB;

[0266] The synchronization signal in the first SSB;

[0267] The PBCH DMRS in the first SSB;

[0268] The MIB in the first SSB;

[0269] The layer 1 payload of the PBCH;

[0270] The system frame number;

[0271] Other system messages;

[0272] The control resource set CORESET 0;

[0273] The search space 0;

[0274] The random access message 2 or message B;

[0275] The random access message 4;

[0276] PEI;

[0277] The DCI for scheduling paging.

[0278] It should be noted that the processing method of the tracking signal applied to the network side device in the embodiments of the present application corresponds to the processing method of the tracking signal applied to the terminal side above. The relevant concepts and specific implementation processes involved in the embodiments of the present application can refer to the description in the above Figure 2 method embodiments, and will not be elaborated here.

[0279] In the embodiments 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. Among them, 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, the frequency - domain extended part of the first signal of the first SSB, and a second signal. Among them, the first measurement signal can be understood as the enhanced signal of the first SSB in the frequency domain, that is, the network - side device enhances the signal of 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 the terminals in the connected state and the non - connected state can better perform time - frequency tracking. In particular, the terminal can also obtain better time - frequency tracking performance during the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal.

[0280] In the method for processing a tracking signal provided by the embodiments of the present application, the execution subject may be a device for processing the tracking signal. In the embodiments of the present application, taking the device for processing the tracking signal to execute the processing of the tracking signal as an example, the device for processing the tracking signal provided by the embodiments of the present application is described.

[0281] Please refer to Figure 5 , Figure 5 is the structural diagram of a device for processing a tracking signal provided by the embodiments of the present application. As shown in Figure 5 , the device 500 for processing the tracking signal includes:

[0282] A receiving module 501, configured to receive a first tracking signal, where the first tracking signal includes a first SSB and a first measurement signal;

[0283] A measuring module 502, configured to perform measurements based on the first tracking signal;

[0284] Among them, the first measurement signal includes at least one of the following:

[0285] 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;

[0286] The frequency - domain extended part of the first signal of the first SSB;

[0287] A second signal;

[0288] Among them, 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.

[0289] Optionally, the first signal includes at least one of the following:

[0290] Synchronization signal;

[0291] Physical Broadcast Channel PBCH;

[0292] Demodulation Reference Signal DMRS of PBCH;

[0293] Broadcast channel for other system information.

[0294] Optionally, at least one of the following is satisfied for the M-1 repetitions of the first signal in the frequency domain:

[0295] The SSB index corresponding to the M-1 repetitions is the same as the index corresponding to the first SSB;

[0296] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0297] The quasi co-location QCL reference relationships corresponding to at least some of the signals in the repeated signal group are the same;

[0298] The signals in the repeated signal group are spaced X frequency domain units apart in the frequency domain, where X≥0;

[0299] Wherein, the repeated signal group includes the first SSB and the M-1 repetitions of the first signal in the frequency domain.

[0300] Optionally, at least one of the following is satisfied for the frequency domain resources occupied by the frequency domain extended part of the first signal:

[0301] Located within the bandwidth of the first SSB;

[0302] Located outside the bandwidth of the first SSB.

[0303] Optionally, 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, where the other signals are signals other than the first signal.

[0304] Optionally, the second signal includes at least one of the following:

[0305] Second SSB;

[0306] Other synchronization signals different from the synchronization signals in the first SSB;

[0307] Other reference signals different from the reference signals in the first SSB.

[0308] Optionally, the second signal includes at least one of the following:

[0309] Second SSB;

[0310] Other synchronization signals different from the synchronization signals in the first SSB;

[0311] Other reference signals different from the reference signals in the first SSB.

[0312] Optionally, the second SSB satisfies at least one of the following:

[0313] The second SSB does not include PBCH;

[0314] The second SSB includes at least one synchronization signal.

[0315] Optionally, when at least two synchronization signals are included in the second SSB, the at least two synchronization signals satisfy at least one of the following:

[0316] There is a time domain interval between each of the at least two synchronization signals;

[0317] The at least two synchronization signals occupy at least one time slot;

[0318] The at least two synchronization signals occupy the same frequency domain resources.

[0319] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0320] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0321] The QCL reference relationship of the second SSB is the same as that of the first SSB;

[0322] The index of the second SSB is the same as that of the first SSB;

[0323] The cell identifier of the second SSB is the same as that of the first SSB;

[0324] The second SSB is aligned with the preset time domain position of the first SSB.

[0325] Optionally, there is an interval of Y frequency domain units between the second signal and the first signal of the first SSB, where Y≥0.

[0326] 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.

[0327] Optionally, the device further includes:

[0328] A first determination module, configured to determine a first bandwidth, where the first bandwidth is related to at least one of the following:

[0329] The bandwidth of the first SSB;

[0330] The bandwidth of the first signal;

[0331] Number of physical resource blocks (PRBs);

[0332] Initial bandwidth part where the first SSB is located;

[0333] At least one currently active bandwidth part;

[0334] Bandwidth of at least one frequency band or carrier unit;

[0335] At least one frequency band corresponding to multiple cells with the same downlink timing;

[0336] Predetermined bandwidth;

[0337] Wherein, the first bandwidth is greater than or equal to the bandwidth of the first signal or the first SSB.

[0338] Optionally, the first bandwidth includes the bandwidth of at least one of the following:

[0339] The first signal;

[0340] M - 1 times repetition of the first signal in the frequency domain;

[0341] The frequency domain extension part;

[0342] The second signal.

[0343] Optionally, the transmission resources of the first measurement signal include at least one of the following:

[0344] At least part of the transmission opportunity of the first SSB;

[0345] At least part of the transmission frequency domain resources of the first SSB.

[0346] Optionally, the device is further configured to:

[0347] Determine 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:

[0348] Sequence - related parameter of the first SSB;

[0349] Frequency domain parameter of the first SSB;

[0350] Time domain parameter of the first SSB.

[0351] Optionally, the device further includes:

[0352] A processing module, configured to receive downlink transmission with at least one of the first SSB and the first measurement signal as the QCL reference starting from the target time after receiving the first tracking signal.

[0353] Optionally, the device is further configured to:

[0354] Determine relevant parameters of the first measurement signal based on at least one of the following:

[0355] The index of the first SSB;

[0356] The synchronization signal in the first SSB;

[0357] The PBCH DMRS in the first SSB;

[0358] The master information block MIB in the first SSB;

[0359] The layer 1 payload of the PBCH;

[0360] The system frame number;

[0361] Other system messages;

[0362] The control resource set CORESET 0;

[0363] The search space 0;

[0364] Message 2 or message B of random access;

[0365] Message 4 of random access;

[0366] The paging early indication PEI;

[0367] The downlink control information DCI for scheduling paging.

[0368] In the embodiments 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: the M-1 times repetition of the first signal of the first SSB in the frequency domain, the frequency domain extended part of the first signal of the first SSB, and the second signal. Wherein, the first measurement signal can be understood as the enhanced signal of the first SSB in the frequency domain, that is, the network side device enhances the signal of 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 the terminals in the connected state and the non-connected state can better perform time-frequency tracking, which helps to improve the downlink transmission performance of the terminal.

[0369] The processing device for the tracking signal in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than terminals. Exemplarily, the terminal may include, but is not limited to, the types of the above-listed terminal 11, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0370] The processing device for the tracking signal provided in the embodiments of the present application can implement Figure 2 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0371] Please refer to Figure 6 , Figure 6 which is a structural diagram of another processing device for the tracking signal provided in the embodiments of the present application. As Figure 6 shown, the processing device 600 for the tracking signal includes:

[0372] A sending module 601, 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:

[0373] 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;

[0374] The frequency domain extended part of the first signal of the first SSB;

[0375] A second signal;

[0376] 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.

[0377] Optionally, the first signal includes at least one of the following:

[0378] A synchronization signal;

[0379] PBCH;

[0380] The DMRS of PBCH;

[0381] The broadcast channel of other system messages.

[0382] Optionally, the M - 1 times repetition of the first signal in the frequency domain satisfies at least one of the following:

[0383] The SSB index corresponding to the M - 1 times repetition is the same as the index corresponding to the first SSB;

[0384] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0385] At least some of the quasi-co-located QCL reference relationships corresponding to the signals in the repeated signal group are the same;

[0386] The signals in the repeated signal group are spaced X frequency domain units apart in the frequency domain, where X≥0;

[0387] Wherein, the repeated signal group includes the first SSB and M-1 repetitions of the first signal in the frequency domain.

[0388] Optionally, the frequency domain resources occupied by the frequency domain extension part of the first signal satisfy at least one of the following:

[0389] Located within the bandwidth of the first SSB;

[0390] Located outside the bandwidth of the first SSB.

[0391] Optionally, when there is at least one of other signals or reserved resources 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 signals are signals other than the first signal.

[0392] Optionally, the second signal includes at least one of the following:

[0393] A second SSB;

[0394] Other synchronization signals different from the synchronization signals in the first SSB;

[0395] Other reference signals different from the reference signals in the first SSB.

[0396] Optionally, the second SSB satisfies at least one of the following:

[0397] The second SSB does not include a PBCH;

[0398] The second SSB includes at least one synchronization signal.

[0399] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0400] There is a time domain interval between each of the at least two synchronization signals;

[0401] The at least two synchronization signals occupy at least one time slot;

[0402] The frequency domain resources occupied by the at least two synchronization signals are the same.

[0403] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0404] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0405] The QCL reference relationship of the second SSB is the same as that of the first SSB;

[0406] The index of the second SSB is the same as that of the first SSB;

[0407] The cell identifier of the second SSB is the same as that of the first SSB;

[0408] The second SSB is aligned with the first SSB at a preset time domain position.

[0409] Optionally, there are Y frequency domain units between the second signal and the first signal of the first SSB, where Y≥0.

[0410] 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.

[0411] Optionally, the transmission resources of the first measurement signal include at least one of the following:

[0412] At least part of the transmission occasion of the first SSB;

[0413] At least part of the transmission frequency domain resources of the first SSB.

[0414] Optionally, the device further includes:

[0415] A second determination module, configured to determine the transmission resources of the first measurement signal through a first parameter of the first SSB, where the first parameter includes at least one of the following:

[0416] The sequence correlation parameter of the first SSB;

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

[0418] The time domain parameter of the first SSB.

[0419] Optionally, the device is further configured to:

[0420] Determine or configure the relevant parameters of the first measurement signal based on at least one of the following:

[0421] The index of the first SSB;

[0422] The synchronization signal in the first SSB;

[0423] PBCH DMRS in the first SSB;

[0424] MIB in the first SSB;

[0425] Layer 1 payload of PBCH;

[0426] System frame number;

[0427] Other system messages;

[0428] Control resource set CORESET 0;

[0429] Search space 0;

[0430] Message 2 or Message B of random access;

[0431] Message 4 of random access;

[0432] PEI;

[0433] DCI for scheduling paging.

[0434] In the embodiments of the present application, the device sends a first tracking signal to the terminal. The first tracking signal includes a first SSB and a first measurement signal. The first measurement signal includes at least one of the following: M - 1 repetitions of the first signal of the first SSB in the frequency domain, a frequency domain extended part of the first signal of the first SSB, and a second signal. Among them, the first measurement signal can be understood as an enhanced signal of the first SSB in the frequency domain, that is, the device enhances the signal of 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, enabling the terminal in the connected state and the non - connected state to better perform time - frequency tracking. Especially, the terminal can also 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.

[0435] The processing device of the tracking signal provided in the embodiments of the present application can implement Figure 4 Each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0436] Such as Figure 7As shown in the figure, an embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702. A program or instruction that can run on the processor 701 is stored on the memory 702. For example, when the communication device 700 is a terminal, when the program or instruction is executed by the processor 701, each step of the above-mentioned method embodiment for processing the tracking signal is implemented, and the same technical effect can be achieved. When the communication device 700 is a network-side device, when the program or instruction is executed by the processor 701, each step of the above-mentioned method embodiment for processing the tracking signal is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0437] An embodiment of the present application further provides a terminal, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the steps in the method embodiment as Figure 2 shown. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and the same technical effect can be achieved. Specifically, Figure 8 FIG. is a schematic diagram of the hardware structure of a terminal according to an embodiment of the present application.

[0438] The terminal 800 includes, but is not limited to, at least some components such as 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 a processor 810.

[0439] Those skilled in the art can understand that the terminal 800 may further include a power source (such as a battery) for supplying power to each component. The power source can be logically connected to the processor 810 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 8 The terminal structure shown in does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0440] It should be understood that in the embodiments of the present application, the input unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042. The graphics processor 8041 processes the image data of static pictures or videos 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, for example, a liquid crystal display or an organic light emitting diode. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. The touch panel 8071 is also referred to as a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. The 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 elaborated herein.

[0441] In the embodiments of the present application, after receiving downlink data from a network side device, the radio frequency unit 801 may transmit it to the processor 810 for processing; in addition, the radio frequency unit 801 may send uplink data to the network side device. Generally, 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, etc.

[0442] The memory 809 can be used to store software programs or instructions as well as various data. The memory 809 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 809 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can 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 can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 809 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0443] The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 810 either.

[0444] Among them, the radio frequency unit 801 is used to receive a first tracking signal, and the first tracking signal includes a first synchronization signal block SSB and a first measurement signal;

[0445] The processor 810 is used to perform measurements based on the first tracking signal;

[0446] Among them, the first measurement signal includes at least one of the following:

[0447] The M-1 times repetition in the frequency domain of the first signal of the first SSB, where M is a positive integer greater than 1;

[0448] The frequency domain extended part of the first signal of the first SSB;

[0449] A second signal;

[0450] 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.

[0451] In the embodiments of the present application, the terminal receives a first tracking signal sent by a network side device, and then performs 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: the M-1 times repetition in the frequency domain of the first signal of the first SSB, the frequency domain extended part of the first signal of the first SSB, 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 in the frequency domain on the first SSB 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 the connected state and the non-connected state can better perform time-frequency tracking, especially enabling the terminal to also obtain good time-frequency tracking performance in the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal.

[0452] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the method embodiment of the above tracking signal, and achieve the same or corresponding technical effects. To avoid repetition, it will not be elaborated here.

[0453] The embodiments of the present application further provide a network side device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement as Figure 4 shown in the steps of the method embodiment. This embodiment of the network side device corresponds to the above method embodiment of the network side device. The various implementation processes and implementation manners of the above method embodiment can all be applied to this embodiment of the network side device, and can achieve the same technical effects.

[0454] Specifically, the embodiments of the present application further provide a network side device. As Figure 9As shown in the figure, 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. The antenna 91 is connected to the radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92. After processing the received information, the radio frequency device 92 sends it out through the antenna 91.

[0455] In the above embodiments, the method executed by the network-side device can be implemented in the baseband device 93, and the baseband device 93 includes a baseband processor.

[0456] The baseband device 93 may include, for example, at least one baseband board, and a plurality of chips are provided on the baseband board, such as Figure 9 As shown, 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 operations of the network device shown in the above method embodiments.

[0457] The network-side device may further include a network interface 96, and the interface is, for example, a Common Public Radio Interface (CPRI).

[0458] Specifically, the network-side device 900 in the embodiments of the present invention further includes: instructions or programs stored on the memory 95 and executable on the processor 94. The processor 94 calls the instructions or programs in the memory 95 to execute Figure 6 the methods executed by the modules shown in the figure and achieve the same technical effects. To avoid repetition, they are not described here again.

[0459] The embodiments of the present application further provide a readable storage medium, on which a program or instructions are stored. When the program or instructions are executed by a processor, each process of the above method embodiments for processing the tracking signal is implemented, and the same technical effects can be achieved. To avoid repetition, they are not described here again.

[0460] Wherein, the processor is the processor in the terminal described in the above embodiments. 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 disc, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0461] Another embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run programs or instructions to implement each process of the above-described embodiment of the method for processing tracking signals, and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0462] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0463] Another 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 each process of the above-described embodiment of the method for processing tracking signals, and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0464] An embodiment of the present application further provides a communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the above-described method for processing tracking signals, and the network-side device can be used to execute the steps of the above-described method for processing tracking signals.

[0465] It should be noted that in this document, the terms "include", "comprise" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that 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. It may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0466] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disc, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0467] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. All these embodiments fall within the protection scope of the present application.

Claims

1. A method for processing a tracking signal, characterized in that, Including: 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 information.

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 to 3, characterized in that, 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, characterized in that, 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, where the other signals are signals other than the first signal.

6. The method according to any one of claims 1-5, characterized in that, 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, characterized in that, 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, characterized in that, 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 to 10, characterized in that, 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, characterized in that, The method further includes: The terminal determines 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 (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, characterized in that, 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 in the frequency domain; The frequency-domain expansion part; The second signal.

14. The method according to any one of claims 1-13, characterized in that, 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, characterized in that, The method further includes: The terminal determines the transmission resources of the first measurement signal through a 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, characterized in that, The method further includes: 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, characterized in that, The method further includes: 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, characterized in that Includes: 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; 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.

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, characterized in that, 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; At least some of the quasi - co - location QCL reference relationships corresponding to 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; Among them, the repeated signal group includes M - 1 repetitions in the frequency domain of the first SSB and the first signal.

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 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.

23. The method according to any one of claims 18-22, characterized in that, 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 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 that of the first SSB; The cell identifier of the second SSB is the same as that of the first SSB; The second SSB is aligned with the preset time domain position of the first SSB.

27. The method according to any one of claims 18 - 26, characterized in that, 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, characterized in that 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, characterized in that, The transmission resources of the first measurement signal include at least one of the following: At least part of the transmission occasions 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, characterized in that, The method further includes: 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, characterized in that, The method further includes: 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 signals in the first SSB; The PBCH DMRS in the first SSB; The MIB in the first SSB; The layer 1 payload of 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; PEI; DCI for scheduling paging.

32. A processing device for tracking signals, characterized in that, Including: 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 measuring module, configured to perform measurements based on the first tracking signal; Wherein, the first measurement signal includes at least one of the following: M - 1 repetitions of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1; A 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 device according to claim 32, characterized in that, 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 - located (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 repetitions of the first signal in the frequency domain.

34. The device according to claim 32 or 33, characterized in that, 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.

35. The device according to any one of claims 32-34, characterized in that The apparatus further includes: 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 (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.

36. The device according to any one of claims 32-35, characterized in that, 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, characterized in that, Including: 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: M - 1 repetitions of the first signal of the first SSB in the frequency domain, where M is a positive integer greater than 1; A 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.

38. The device according to claim 37, characterized in that, 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 - located (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 M-1 repetitions in the frequency domain of the first SSB and the first signal.

39. The device according to claim 37 or 38, characterized in that, 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.

40. The device according to any one of claims 37 - 39, characterized in that The apparatus further includes: A second determination module, configured to determine the transmission resource of the first measurement signal through a first parameter of the first SSB, where the first parameter includes at least one of the following: Sequence-related parameters of the first SSB; Frequency-domain parameters of the first SSB; Time-domain parameters of the first SSB.

41. A terminal, characterized in that, Comprising a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are 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, characterized in that, Comprising a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are 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, characterized in that, Programs or instructions are stored on the readable storage medium, and when the programs or instructions are 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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