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 at least one of a first synchronization signal block SSB and a first measurement signal; the terminal performs measurement based on the first tracking signal; wherein 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 time domain, and M is an integer greater than 1; a second signal; wherein the first signal is at least part of the signal in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

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 Synchronization Signal and PBCH block (SSB). However, since the bandwidth occupied by the SSB is small, and the time-domain symbols and time span occupied 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 at least one of a first Synchronization Signal Block (SSB) and a first measurement signal;

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

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

[0008] M - 1 repetitions in the time domain of the first signal of the first SSB, where M is an integer greater than 1;

[0009] A second signal;

[0010] The first signal is at least part of the signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0011] In a second aspect, a method for processing a tracking signal is provided, including:

[0012] The network-side device sends a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following:

[0013] The M - 1 times repetition in time domain of the first signal of the first SSB, where M is a positive integer greater than 1;

[0014] A second signal;

[0015] 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 in the first SSB.

[0016] In a third aspect, a processing device for tracking signals is provided, including:

[0017] A receiving module, configured to receive a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal;

[0018] A measurement module, configured to perform measurements based on the first tracking signal;

[0019] Wherein, the first measurement signal includes at least one of the following:

[0020] The M - 1 times repetition in time domain of the first signal of the first SSB, where M is an integer greater than 1;

[0021] A second signal;

[0022] The first signal is at least part of the signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0023] In a fourth aspect, a processing device for tracking signals is provided, including:

[0024] A sending module, configured to send a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following:

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

[0026] A second signal;

[0027] 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 in the first SSB.

[0028] In a fifth aspect, a terminal is provided, which includes a processor and a memory. The memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0029] 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 at least one of a first SSB and a first measurement signal; the processor is configured to perform measurements based on the first tracking signal; where the first measurement signal includes at least one of the following:

[0030] M - 1 repetitions in the time domain of a first signal of the first SSB, where M is an integer greater than 1;

[0031] A second signal;

[0032] The first signal is at least part of the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0033] In a seventh aspect, a network - side device is provided. The network - side device 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.

[0034] In an eighth aspect, a network - side device is provided, including a processor and a communication interface. The communication interface is configured to send a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following:

[0035] M - 1 repetitions in the time domain of a first signal of the first SSB, where M is a positive integer greater than 1;

[0036] A second signal;

[0037] Where the first signal is at least part of the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0038] 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.

[0039] 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.

[0040] In an eleventh aspect, a chip is provided, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the method described in the first aspect or the method described in the second aspect.

[0041] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the steps of the method described in the second aspect.

[0042] 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. Among them, the first tracking signal includes at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain. Thus, the terminal can perform measurements based on the time-domain enhanced first tracking signal, enabling better time-frequency tracking for both connected-state and non-connected-state terminals. In particular, the terminal can also obtain good time-frequency tracking accuracy during the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0044] Figure 2 is a flowchart of a method for processing a tracking signal provided by an embodiment of the present application;

[0045] Figure 3a is one of the schematic diagrams of the first SSB in a method for processing a tracking signal provided by an embodiment of the present application;

[0046] Figure 3b is another schematic diagram of the first SSB in a method for processing a tracking signal provided by an embodiment of the present application;

[0047] Figure 3c is yet another schematic diagram of the first SSB in a method for processing a tracking signal provided by an embodiment of the present application;

[0048] Figure 3d is still another schematic diagram of the first SSB in a method for processing a tracking signal provided by an embodiment of the present application;

[0049] Figure 3e is yet another schematic diagram of the first SSB in a method for processing a tracking signal provided by an embodiment of the present application;

[0050] Figure 4 is a flowchart of another method for processing a tracking signal provided by an embodiment of the present application;

[0051] Figure 5 is a structural diagram of a device for processing a tracking signal provided by an embodiment of the present application;

[0052] Figure 6 is a structural diagram of another device for processing a tracking signal provided by an embodiment of the present application;

[0053] Figure 7 is a structural diagram of a communication device provided by an embodiment of the present application;

[0054] Figure 8 is a structural diagram of a terminal provided by an embodiment of the present application;

[0055] Figure 9 is a structural diagram of a network-side device provided by an embodiment of the present application. Detailed implementation manners

[0056] 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 some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0057] 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 herein, 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.

[0058] The term "indication" in the present 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 informs the receiver of 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.

[0059] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and 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 the NR term is used 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.

[0060] Figure 1The block diagram of a wireless communication system to which the 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 referred to as 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 referred to as 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.

[0061] 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.

[0062] For better understanding, the following explains the relevant concepts involved in the embodiments of this application.

[0063] Synchronization Signal Block:

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] Quasi co-location (QCL) reference:

[0070] 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.

[0071] 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:

[0072] 1) Type A: {Doppler frequency offset, Doppler spread, average delay, delay spread}

[0073] 2) Type B: {Doppler frequency offset, Doppler spread}

[0074] 3) Type C: {Doppler frequency offset, average delay}

[0075] 4) Type D: {Spatial reception parameters}

[0076] 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.

[0077] 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.

[0078] The following will, in conjunction with the accompanying drawings, elaborate in detail on the method, apparatus, and related devices for processing tracking signals provided in the embodiments of the present application through some embodiments and their application scenarios.

[0079] Please refer to Figure 2 , Figure 2 which is a flowchart of a method for processing a tracking signal provided in an embodiment of the present application. The method is applied to a terminal. As Figure 2 shown, the method includes the following steps:

[0080] Step 201: The terminal receives a first tracking signal, which includes at least one of a first SSB and a first measurement signal;

[0081] Step 202: The terminal performs measurements based on the first tracking signal.

[0082] Wherein, the first measurement signal includes at least one of the following:

[0083] M - 1 repetitions in the time domain of the first signal of the first SSB, where M is an integer greater than 1;

[0084] A second signal;

[0085] The first signal is at least part of the signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0086] Optionally, the first signal includes at least one of the following:

[0087] A synchronization signal, which includes at least one of the following: PSS, SSS, other synchronization signals;

[0088] PBCH, including the DMRS of PBCH;

[0089] The DMRS of PBCH;

[0090] The broadcast channel of other system messages.

[0091] In the embodiments of the present application, the first measurement signal can be understood as an enhanced signal of the first SSB in the time domain. The first SSB can be understood as the SSB for the terminal's initial access. The terminal can receive the first SSB, first perform conventional initial access (for example, including the demodulation of broadcast messages), and then perform the measurement of the first measurement signal. Or, the terminal can receive the first SSB, first perform preliminary time - frequency synchronization, and then perform the measurement of the first measurement signal to obtain time - frequency fine synchronization, and then perform initial access. Or, 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.

[0092] Exemplarily, the first measurement signal includes M - 1 repetitions of the first signal of the first SSB in the time domain. For example, the first signal may be all signals (channels) in the first SSB, that is, the first measurement signal includes M - 1 repetitions of all signals (channels) in the first SSB in the time domain. Alternatively, the first signal may also be a part of the signals in the first SSB. For example, in order to measure the Doppler spread more accurately, mainly by means of the synchronization signals on more symbols, so in some scenarios, only the synchronization signals in the first SSB need to be repeated, that is, the first signal is only the synchronization signal in the first SSB, and the first measurement signal includes M - 1 repetitions of the synchronization signals in the first SSB in the time domain. At this time, there is no need to repeat other signals in the first SSB, thereby reducing the overall SSB resource occupancy overhead of the network.

[0093] Please refer to Figure 3a , Figure 3a for an example of 2 repetitions (i.e., M = 3), where only the synchronization signals in the first SSB are repeated in the second repetition (repetition #2).

[0094] Alternatively, please refer to Figure 3b , Figure 3b for an example of 4 repetitions (i.e., M = 5), where only the synchronization signals in the first SSB are repeated in the second repetition (repetition #2), all signals in the first SSB are repeated in the third repetition (repetition #3), and only the synchronization signals in the first SSB are repeated in the fourth repetition (repetition #4).

[0095] It should be noted that the repetition pattern of the M - 1 repetitions can be default - agreed by the protocol or configured by the network - side device, for example, indicated in the broadcast channel.

[0096] In the embodiments of the present application, the first tracking signal may include the first SSB and the first measurement signal. The first measurement signal includes M - 1 repetitions of the first signal of the first SSB in the time domain, thereby increasing the overall time span of the first tracking signal through the first measurement signal, that is, enhancing the first SSB in the time domain, thereby increasing the time span of the synchronization signals for measuring the Doppler spread, effectively improving the time - frequency estimation performance of the terminal, and thus improving the down - link transmission performance of the terminal.

[0097] It should be noted that the first signals in the M - 1 repetitions may be different. For example, some signals in a certain repetition are PSS and SSS, while some signals in another repetition are SSS.

[0098] Optionally, at least one of the following is satisfied by the M-1 repetitions of the first signal in the time domain:

[0099] The SSB index corresponding to the M-1 repetitions is the same as the index of the first SSB, where the index is the SSB index;

[0100] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0101] 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;

[0102] The signals in the repeated signal group are spaced X time domain units apart in the time domain, X≥0, and the time domain unit can be a symbol or a time slot, etc.;

[0103] Wherein, the repeated signal group includes the first SSB and the M-1 repetitions of the first signal in the time domain.

[0104] In the embodiments of the present application, when at least one of the above is satisfied by the M-1 repetitions of the first signal in the time domain, the terminal can jointly process the measurement results of the M-1 repetitions of the first signal in the time domain, thereby improving the performance of time-frequency tracking.

[0105] 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 the multiple repetitions between the repetitions at an interval of N (N≤M-1) are the same, so that the terminal can perform more accurate time-frequency estimation based on the measurement results on these repetitions.

[0106] 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 it is determined by some means that the QCL reference relationships corresponding to some of the signals in the repeated signal group are still the same.

[0107] In some embodiments, the signals in the repeated signal group are spaced 1 time slot apart in the time domain, that is, the time slots occupied by the signals in the repeated signal group in the time domain are continuous. As Figure 3cAs shown, assuming that one time slot occupies 14 symbols, there is an interval of 4 symbols between the PSS (Synchronization Signal 1) and the SSS (Synchronization Signal 2) in the first SSB, and the repetition times of the synchronization signals in the first SSB is 1. At this time, the PSS and SSS in the first SSB and the PSS and SSS in the repetition together form a synchronization signal set with a maximum time span of 18 symbols for the estimation of Doppler spread.

[0108] In some embodiments, the signals in the repeated signal group are completed within N time slots, and the signals in the repeated signal group are spaced X symbols in the time domain. For example, assuming that one time slot occupies 14 symbols, the first SSB occupies 4 symbols, with an interval of 2 symbols between the PSS and the SSS. By default, the protocol stipulates that multiple repetitions are completed within N = 2 time slots, and the first SSB is repeated 4 times. At this time, the 4 PSSs and 4 SSSs in the 4 repetitions together form a synchronization signal set for the estimation of Doppler spread.

[0109] Optionally, when the terminal performs measurements based on the first tracking signal, the first measurement signal includes L repetitions of the first signal in the time domain, where L ≤ M - 1. That is to say, although the first signal in the first SSB is repeated M - 1 times in the time domain, the terminal does not necessarily need to jointly perform measurements with M - 1 repetitions. The terminal can perform measurements based on L of these repetitions, which helps to reduce the measurement consumption of the terminal. The determination of the L repetitions can be default stipulated by the protocol, or configured by the network-side device, or determined by the terminal according to its capabilities.

[0110] In addition, when the number of the first SSBs is multiple (the indexes of the multiple first SSBs are different), there are two ways for the terminal to receive the first tracking signal:

[0111] 1) The terminal first sequentially receives multiple first SSBs, and then receives the first measurement signals corresponding to the multiple first SSBs respectively. One first measurement signal is also the M - 1 repetitions of the first signal in one first SSB in the time domain. That is to say, the network-side device first sequentially transmits the first SSBs, and then performs the repetition of the first signal in the first SSB and the transmission of the repeated signals.

[0112] 2) The terminal receives the first tracking signal, and the first tracking signal includes multiple first SSBs and the first measurement signals corresponding to the multiple first SSBs respectively. One first measurement signal is also the M - 1 repetitions of the first signal in one first SSB in the time domain. That is to say, the network-side device sequentially generates the repetition signals of each first SSB and the first signal in each first SSB, and after transmitting the previous first SSB and the repetition signal of the first signal in the first SSB, it transmits the next first SSB and the repetition signal of the first signal in the first SSB.

[0113] For example, assume that there are 4 first SSBs with indexes SSB#1, SSB#2, SSB#3, and SSB#4 respectively, and each first SSB is repeated 2 times. Then, according to the first transmission mode, the transmission pattern of these first SSBs is: SSB#1, SSB#2, SSB#3, SSB#4, SSB#1, SSB#2, SSB#3, SSB#4; according to the second transmission mode, the transmission pattern of these first SSBs is: SSB#1, SSB#1, SSB#2, SSB#2, SSB#3, SSB#3, SSB#4, SSB#4.

[0114] In this way, the transmission mode of the first SSB and the first measurement signal (the repetition of the first signal in the first SSB) between the terminal and the network side device becomes more flexible.

[0115] In the embodiment of this application, the first measurement signal may further include a second signal, where the second signal is a signal different from the first signal in the first SSB. For example, the second signal is a second SSB. In this way, the first tracking signal may include the first SSB and the second signal, and the terminal jointly measures using the first SSB and the second signal. In this way, it also helps to improve the accuracy of time-frequency estimation of the terminal.

[0116] Optionally, the first tracking signal may also only include the first SSB. For example, the first signal of the first SSB is time-domain extended, such as occupying multiple time slots and including multiple synchronization signals, that is, increasing the time span of the first signal in the first SSB. In this case, measuring based on the first SSB also helps to improve the time-frequency estimation accuracy of the terminal.

[0117] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0118] Includes at least two synchronization signals;

[0119] The at least two synchronization signals occupy at least two time slots;

[0120] The synchronization signal and the PBCH are in different time slots;

[0121] The PBCH occupies at least one time slot.

[0122] For example, the first SSB includes a PSS and multiple SSSs, so as to improve the performance of time-frequency estimation. Suppose the first SSB occupies two time slots, and each time slot has at least two synchronization signals. For example, there is a PSS and an SSS in the first time slot, and two SSSs in the second time slot. In this way, the first SSB also includes at least two synchronization signals, thus effectively improving the time-frequency estimation performance of the terminal.

[0123] Again, for example, the first SSB occupies two time slots, where the PSS and the SSS occupy different time slots respectively; or each time slot has at least two synchronization signals. For example, there is a PSS and an SSS in the first time slot, and two SSSs in the second time slot, thus realizing the synchronization signal distribution with a large time span.

[0124] Once again, for example, the first SSB occupies two time slots, where the PSS and the SSS are in the first time slot, and the PBCH and the DMRS of the PBCH are in the second time slot. At this time, the combination of the PSS, the SSS, and the DMRS can also be used for joint measurement, effectively improving the time-frequency estimation accuracy of the terminal.

[0125] Optionally, when the number of the first SSBs is multiple, the multiple first SSBs share all or part of the signals. For example, the multiple first SSBs share all or part of the synchronization signals. Suppose there are two first SSBs: SSB#1 and SSB#2, where the interval between the PSS and the SSS of SSB#1 is large, and the symbol position of the SSS is within SSB#2. Then, the SSS of SSB#1 can be used as the SSS or PSS of SSB#2 at this time, that is, SSB#1 and SSB#2 share part of the synchronization signals, which can help improve the time-frequency estimation accuracy of the terminal. It should be noted that in this case, it is necessary to ensure that the channel characteristics of the two SSBs are the same, such as quasi-co-location.

[0126] In the embodiment of this application, the terminal receives the first tracking signal sent by the network-side device, and then performs measurement based on the first tracking signal; wherein, the first tracking signal includes at least one of the first SSB and the first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or the second signal. The first tracking signal can be understood as an SSB enhanced in the time domain. Furthermore, the terminal can perform measurement based on the first tracking signal enhanced in the time domain, 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 accuracy in the initial access and random access phases, which helps improve the downlink transmission performance of the terminal.

[0127] Optionally, in the case where the first tracking signal includes at least two first SSBs and signal collision occurs to the at least two first SSBs, the method further includes:

[0128] The terminal discards a first discard signal of at least one first SSB among the at least two first SSBs, where the first discard signal includes the collided signal or all signals.

[0129] Specifically, the terminal discarding a first discard signal of at least one first SSB among the at least two first SSBs includes any one of the following:

[0130] The terminal discards the collided signal in the previous first SSB among any two collided first SSBs of the at least two first SSBs, and retains the signal in the subsequent first SSB;

[0131] The terminal discards all signals of the previous first SSB among any two collided first SSBs of the at least two first SSBs, and retains the signal in the subsequent first SSB;

[0132] The terminal discards the collided signal in the previous first SSB among any two collided first SSBs of the at least two first SSBs, and remaps the discarded signal on a specific symbol of this first SSB according to a preset rule;

[0133] The terminal discards the collided signal in the subsequent first SSB among any two collided first SSBs of the at least two first SSBs, and retains the signal in the previous first SSB;

[0134] The terminal discards all signals of the subsequent first SSB among any two collided first SSBs of the at least two first SSBs, and retains the signal in the previous first SSB;

[0135] The terminal discards the collided signal in the subsequent first SSB among any two collided first SSBs of the at least two first SSBs, and remaps the discarded signal on a specific symbol of this first SSB according to a preset rule.

[0136] Exemplarily, it is assumed that when signals in two first SSBs (SSB#1 and SSB#2) collide, any one of the following methods can be adopted for processing:

[0137] 1) Discard the collided signal in SSB#1 and retain the signal in SSB#2;

[0138] 2) Discard all signals in SSB#1 and retain the signal in SSB#2;

[0139] 3) Discard the signals that collide in SSB#1 and remap the discarded signals on specific symbols of SSB#1 according to a preset rule;

[0140] 4) Keep the signals of SSB#1 and discard the signals that collide in SSB#2;

[0141] 5) Keep the signals of SSB#1 and discard all the signals in SSB#2;

[0142] 6) Discard the signals that collide in SSB#2 and remap the discarded signals on specific symbols of SSB#2 according to a preset rule.

[0143] For example, for method 3) among them, assume that the PSS and SSS in SSB#1 are separated by 8 symbols. However, at this time, the SSS collides with SSB#2. At this time, the SSS in SSB#1 can be discarded, and then the SSS is remapped at the 4th symbol after the PSS in SSB#1 according to a preset rule.

[0144] In this way, in some cases, when the first SSB is enhanced in the time domain, for the possible signal collision situation between the first SSBs, this application clarifies the processing method for the first SSBs where signal collisions occur, so that the terminal can better perform measurements based on the first SSB, ensuring the time-frequency estimation performance of the terminal.

[0145] In the embodiments of this application, the first measurement signal may include a second signal. Optionally, the second signal includes at least one of the following:

[0146] Other synchronization signals different from the synchronization signals in the first SSB, such as PSS (different from the PSS sequence in the first SSB), SSS (different from the SSS sequence in the first SSB), other synchronization sequences, etc.;

[0147] Other reference signals different from the reference signals in the first SSB, such as TRS, DMRS of other signals, etc.;

[0148] The second SSB.

[0149] It should be noted that in the case where the first measurement signal includes the second signal, there are two ways for the terminal to perform measurements based on the first tracking signal:

[0150] 1) Combine the first SSB and the second signal to form a first tracking signal and perform measurements based on this first tracking signal;

[0151] 2) First perform preliminary measurements based on the first SSB, and then perform further fine measurements according to the second signal.

[0152] Regardless of the above first method or 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.

[0153] Optionally, the second SSB satisfies at least one of the following:

[0154] The second SSB does not include PBCH;

[0155] The second SSB includes at least one synchronization signal.

[0156] It should be noted that whether the second SSB includes PBCH can be agreed upon by the protocol or configured by the network-side device.

[0157] Wherein, when the second SSB includes at least one synchronization signal, the at least one synchronization signal may include at least one of the following: one or more PSSs, one or more SSSs, one or more other synchronization signals.

[0158] Optionally, in the case where the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0159] There is a time-domain interval between each synchronization signal among the at least two synchronization signals. For example, the time-domain intervals between each synchronization signal among the at least two synchronization signals are equal;

[0160] The at least two synchronization signals occupy at least one time slot, that is, occupy one or more time slots;

[0161] The at least two synchronization signals occupy the same frequency-domain resource.

[0162] Exemplarily, please refer to Figure 3d , Figure 3d An example of the second SSB is given. Among them, in order to ensure the performance of time-frequency tracking, the second SSB occupies two consecutive time slots (time slot #n and time slot #n + 1), and there is a time-domain interval from the first SSB (occupying time slot #1). The terminal can determine the time-domain position of the second SSB according to the interval. In addition, there are 4 synchronization signals in the second SSB. The synchronization signals can be any combination of PSS, SSS, and other synchronization signals, and their bandwidth is greater than the bandwidth of the synchronization signals in the first SSB. In addition, the broadcast channel in the second SSB is optional. It can exist or not exist. When it exists, it can be used to transmit PBCH or other broadcast messages. Of course, it can also be a channel for other purposes instead of a broadcast channel.

[0163] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0164] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0165] The second SSB has the same QCL reference relationship as the first SSB, and the QCL reference relationship includes but is not limited to beams and spatial filters;

[0166] The second SSB has the same index as the first SSB, and the index may be an SSB index;

[0167] The second SSB has the same cell identification as the first SSB, and the cell identification 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 the first ID and the second ID corresponding to the second SSB are both the same as the first ID and the second ID corresponding to the first SSB;

[0168] The second SSB is aligned with a preset frequency domain position of the first SSB. For example, the frequency domain position may be a subcarrier or an RB, and the preset frequency domain position may be the first RB, or the middle RB, or the last RB. For example, the second SSB is aligned with the first SSB on the first RB.

[0169] 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 may 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.

[0170] Optionally, in the embodiments of the present application, the second signal further satisfies at least one of the following:

[0171] When the number of the second signals is multiple, the time domain interval between the multiple second signals is equal to the time domain interval between the synchronization signals in the first SSB;

[0172] The second signal is separated from the first SSB by at least one time domain unit.

[0173] Exemplarily, when the terminal jointly measures the first SSB and the second signal, if it is agreed that the time domain interval between the two second signals is the same as the time domain interval between the PSS and the SSS in the first SSB, it is beneficial to simplify the reception complexity of the terminal and improve the performance of the terminal measurement.

[0174] In the embodiments of the present application, in order to ensure that the time span of the signal composed of the first SSB and the second signal (such as the first tracking signal) is sufficient, the time domain interval between the second signal and the first SSB can be agreed upon. For example, the interval is at least one time domain unit, and the time domain unit can be a time slot, a symbol, etc.

[0175] It should be noted that in some cases, the second signal may collide with the first SSB, and at this time, the processing method of the terminal needs to be determined.

[0176] Optionally, when the second signal overlaps with the first SSB on the same symbol, the method further includes:

[0177] The terminal discards the second discarded signal of at least one of the second signal or the first SSB, and the second discarded signal includes the signal or the overlapping part on the overlapping symbol.

[0178] Exemplarily, when the second signal overlaps with the first SSB on the same symbol, the terminal can be processed in at least one of the following ways:

[0179] 1) Discard the signal on the overlapping symbol in the first SSB;

[0180] 2) Discard the signal on the overlapping symbol in the second signal;

[0181] 3) Discard the overlapping part in the second signal;

[0182] 4) Discard the overlapping part in the first SSB.

[0183] In this way, the processing method of the terminal when the second signal overlaps with the first SSB on the same symbol is clarified, so as to ensure the performance of the terminal's joint measurement based on the second signal and the first SSB.

[0184] In the embodiments of the present application, the method further includes:

[0185] The terminal determines the measurement window length of the first tracking signal, and the measurement window length is related to at least one of the following:

[0186] The period of the first SSB;

[0187] The period of the mapping cycle of the first SSB to the Random Access Channel Occasion (RO);

[0188] The RO association period of the first SSB to the RO;

[0189] The period of the first SSB to RO association pattern (RO association pattern period);

[0190] The period of the first SSB to the Physical Uplink Shared Channel (PUSCH) of the Configured Grant (CG);

[0191] The configuration period of the Physical Random Access Channel (PRACH);

[0192] The determination period of the RO group for PRACH repetition.

[0193] In this way, the terminal can also determine the measurement window length of the first tracking signal according to at least one of the above, thereby effectively ensuring the performance of the terminal for measuring based on the first tracking signal.

[0194] Optionally, in the embodiments of the present application, the transmission resources of the first measurement signal or the first SSB (which can also be understood as the first tracking signal) include at least one of the following:

[0195] At least part of the transmission occasions of the first SSB;

[0196] At least part of the transmission frequency domain resources of the first SSB.

[0197] Exemplarily, please refer to Figure 3e , no time domain expansion is performed on transmission occasion #1 and transmission occasion #3 of the first SSB, while on transmission occasion #2, there is a time domain unit interval between synchronization signal 2 and synchronization signal 3 in the first SSB, that is, time domain expansion is performed on transmission occasion #2.

[0198] 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 default agreed by the protocol.

[0199] Optionally, the method further includes:

[0200] The terminal determines the transmission resources of the first measurement signal or the first SSB through the first parameter of the first SSB; wherein, the first parameter includes at least one of the following:

[0201] The sequence related parameters of the first SSB, such as the synchronization sequence of the first SSB, or the scrambling method of the first SSB;

[0202] The frequency domain parameters of the first SSB;

[0203] The time-domain parameters of the first SSB, for example, the time-domain parameters are frame information, slot information, sub-window information, etc.

[0204] 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 resources are different, then the terminal can determine the transmission resources of the first SSB currently being transmitted through the sequence of the PSS.

[0205] It can be understood that after the terminal measures based on the first tracking signal, the terminal obtains more accurate time-frequency synchronization. At this time, the QCL reference for subsequent transmissions can be the first SSB and / or the first measurement signal.

[0206] Optionally, the method further includes:

[0207] Starting from the target time after the terminal receives the first tracking signal, the terminal receives downlink transmissions using at least one of the first SSB and the first measurement signal as the QCL reference.

[0208] Among them, the downlink transmissions include but are not limited to PDSCH, PDCCH, and Channel State Information Reference Signal (CSI-RS). For example, taking the 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.

[0209] Optionally, in the embodiments of the present application, the method further includes:

[0210] The terminal determines the relevant parameters of the first measurement signal or the first SSB based on at least one of the following:

[0211] The index of the first SSB;

[0212] The synchronization signals in the first SSB, including PSS and SSS, for example, the sequences, bandwidths, frequency points, etc. corresponding to PSS and SSS;

[0213] The PBCH DMRS in the first SSB;

[0214] The MIB in the first SSB;

[0215] The layer 1 payload of the PBCH;

[0216] System frame number;

[0217] Other system information, such as SIB 1;

[0218] Control resource set (CORESET) 0;

[0219] Search space 0;

[0220] Random access message 2 or message B;

[0221] Random access message 4;

[0222] Paging Early Indication (PEI);

[0223] Downlink Control Information (DCI) for scheduling paging.

[0224] Wherein, the relevant parameters of the first measurement signal or the first SSB include at least one of the following:

[0225] 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 time domain position of the repetition (for example, the time domain position of the repetition is before or after the time domain position of the first SSB), the repetition pattern;

[0226] 2) The parameters of the second signal, including the time domain position of the second signal, for example, the interval between the time domain positions of the second signal and the first signal;

[0227] 3) 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.

[0228] In the embodiments of the present application, the terminal can determine the relevant parameters of the first measurement signal or the first SSB based on the above - mentioned manner, so that the terminal can better perform time - frequency estimation based on the determined first measurement signal and / or the first SSB (i.e., the first tracking signal), effectively improving the downlink transmission performance of the terminal.

[0229] Please refer to Figure 4 , Figure 4 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:

[0230] Step 401: The network-side device sends a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal.

[0231] Among them, the first measurement signal includes at least one of the following:

[0232] M - 1 repetitions of the first signal of the first SSB in the time domain, where M is a positive integer greater than 1;

[0233] A second signal;

[0234] 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 in the first SSB.

[0235] Optionally, the first signal includes at least one of the following:

[0236] A synchronization signal;

[0237] PBCH;

[0238] DMRS of PBCH;

[0239] Broadcast channels of other system messages.

[0240] Optionally, the M - 1 repetitions of the first signal in the time domain satisfy at least one of the following:

[0241] The SSB index corresponding to the M - 1 repetitions is the same as the index of the first SSB;

[0242] The power corresponding to the M - 1 repetitions is the same as the power corresponding to the first SSB;

[0243] The quasi - co - location (QCL) reference relationships corresponding to at least part of the signals in the repeated signal group are the same;

[0244] The signals in the repeated signal group are spaced X time - domain units in the time domain, where X ≥ 0;

[0245] Among them, the repeated signal group includes the first SSB and the M - 1 repetitions of the first signal in the time domain.

[0246] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0247] Includes at least two synchronization signals;

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

[0249] The synchronization signal and the PBCH are in different time slots;

[0250] The PBCH occupies at least one time slot.

[0251] Optionally, when the number of the first SSBs is multiple, the multiple first SSBs share all or part of the signals.

[0252] In the embodiments of the present application, when the number of the first SSBs is multiple, there are two ways for the network side device to send the first tracking signal:

[0253] 1) The terminal first receives multiple first SSBs in sequence, and then receives the first measurement signals respectively corresponding to the multiple first SSBs. One first measurement signal is the M-1 times repetition of the first signal in a first SSB in the time domain; that is to say, the network side device first transmits the first SSBs in sequence, and then performs the repetition of the first signal in the first SSB and the transmission of the repeated signal.

[0254] 2) The terminal receives the first tracking signal, and the first tracking signal includes multiple first SSBs and the first measurement signals respectively corresponding to the multiple first SSBs. One first measurement signal is the M-1 times repetition of the first signal in a first SSB in the time domain; that is to say, the network side device generates the repeated signals of each first SSB and the first signal in each first SSB in sequence, and after transmitting the repeated signal of the previous first SSB and the first signal in the first SSB, transmits the repeated signal of the next first SSB and the first signal in the first SSB.

[0255] Optionally, when the first tracking signal includes at least two first SSBs and signal collision occurs to the at least two first SSBs, the method further includes:

[0256] The network side device discards (or does not send) the first discard signal of at least one first SSB among the at least two first SSBs, and the first discard signal includes the collided signal or all signals.

[0257] Specifically, the network side device discarding the first discard signal of at least one first SSB among the at least two first SSBs includes any one of the following:

[0258] The network side device discards the collided signal in the previous first SSB among any two collided first SSBs of the at least two first SSBs, and retains the signal in the latter first SSB.

[0259] The network side device discards all signals of the previous first SSB among any two collided first SSBs of the at least two first SSBs, and retains the signal in the latter first SSB.

[0260] The network - side device discards the signals that collide in the previous first SSB among any two colliding first SSBs of the at least two first SSBs, and remaps the discarded signals on specific symbols of this first SSB according to a preset rule;

[0261] The network - side device discards the signals that collide in the latter first SSB among any two colliding first SSBs of the at least two first SSBs, and retains the signals in the previous first SSB;

[0262] The network - side device discards all the signals of the latter first SSB among any two colliding first SSBs of the at least two first SSBs, and retains the signals in the previous first SSB;

[0263] The network - side device discards the signals that collide in the latter first SSB among any two colliding first SSBs of the at least two first SSBs, and remaps the discarded signals on specific symbols of this first SSB according to a preset rule.

[0264] In this way, the processing method for the first SSBs with signal collisions is clarified, enabling the network - side device to better execute the transmission of the first SSBs.

[0265] In the embodiments of the present application, the first measurement signal may include a second signal. Optionally, the second signal includes at least one of the following:

[0266] Other synchronization signals different from the synchronization signal in the first SSB;

[0267] Other reference signals different from the reference signal in the first SSB;

[0268] A second SSB.

[0269] Optionally, the second SSB satisfies at least one of the following:

[0270] The second SSB does not include PBCH;

[0271] The second SSB includes at least one synchronization signal.

[0272] Optionally, when the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0273] There is a time - domain interval between each of the at least two synchronization signals;

[0274] The at least two synchronization signals occupy at least one time slot;

[0275] The frequency-domain resources occupied by the at least two synchronization signals are the same.

[0276] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0277] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0278] The QCL reference relationship of the second SSB is the same as that of the first SSB;

[0279] The index of the second SSB is the same as that of the first SSB;

[0280] The cell identifier of the second SSB is the same as that of the first SSB;

[0281] The second SSB is aligned with the preset frequency-domain position of the first SSB.

[0282] Optionally, the second signal satisfies at least one of the following:

[0283] When the number of the second signals is multiple, the time-domain interval between the multiple second signals is equal to the time-domain interval between the synchronization signals in the first SSB;

[0284] The second signal is separated from the first SSB by at least one time-domain unit.

[0285] In the embodiments of the present application, when the second signal overlaps with the first SSB on the same symbol, the method further includes:

[0286] The network-side device discards (or does not send) the second discarded signal of at least one of the second signal or the first SSB, and the second discarded signal includes the signal or the overlapping part on the overlapping symbol.

[0287] Exemplarily, when the second signal overlaps with the first SSB on the same symbol, the network-side device can be processed by at least one of the following methods:

[0288] 1) Discard the signal on the overlapping symbol in the first SSB;

[0289] 2) Discard the signal on the overlapping symbol in the second signal;

[0290] 3) Discard the overlapping part in the second signal;

[0291] 4) Discard the overlapping part in the first SSB.

[0292] In this way, the processing method of the network side device when the second signal overlaps with the first SSB on the same symbol is also clarified, so as to ensure the transmission of the first SSB and the second signal and guarantee the downlink reception of the terminal.

[0293] Optionally, in the embodiments of the present application, the transmission resources of the first measurement signal or the first SSB include at least one of the following:

[0294] At least part of the transmission opportunity of the first SSB;

[0295] At least part of the transmission frequency domain resources of the first SSB.

[0296] Optionally, the method further includes:

[0297] The network side device determines the transmission resources of the first measurement signal or the first SSB through the first parameter of the first SSB; wherein, the first parameter includes at least one of the following:

[0298] Sequence related parameters of the first SSB;

[0299] Frequency domain parameters of the first SSB;

[0300] Time domain parameters of the first SSB.

[0301] Optionally, the method further includes:

[0302] The network side device determines or configures the relevant parameters of the first measurement signal or the first SSB based on at least one of the following:

[0303] Index of the first SSB;

[0304] Synchronization signal in the first SSB;

[0305] PBCH DMRS in the first SSB;

[0306] MIB in the first SSB;

[0307] Layer 1 payload of PBCH;

[0308] System frame number;

[0309] Other system messages;

[0310] CORESET 0;

[0311] Search space 0;

[0312] Random access message 2 or message B;

[0313] Random access message 4;

[0314] PEI;

[0315] The DCI for scheduling paging.

[0316] It should be noted that the method for processing the tracking signal applied to the network-side device in the embodiments of the present application corresponds to the method for processing 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 above Figure 2 description in the method embodiment, and will not be repeated here.

[0317] In the embodiments of the present application, the network-side device sends a first tracking signal to the terminal. The first tracking signal includes at least one of a first SSB and a first measurement signal. The first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. Wherein, the first tracking signal can be understood as an SSB enhanced in the time domain. Furthermore, the terminal can perform measurements based on the time-domain enhanced first tracking signal, so that terminals in the connected state and the non-connected state can better perform time-frequency tracking. Especially, the terminal can also obtain better time-frequency tracking accuracy in the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal.

[0318] For the method for processing the tracking signal provided in the embodiments of the present application, the execution subject can be a processing device for the tracking signal. In the embodiments of the present application, taking the processing device for the tracking signal to execute the processing of the tracking signal as an example, the processing device for the tracking signal provided in the embodiments of the present application is described.

[0319] Please refer to Figure 5 , Figure 5 which is a structural diagram of a processing device for a tracking signal provided in the embodiments of the present application. As Figure 5 shown, the processing device 500 for the tracking signal includes:

[0320] A receiving module 501, configured to receive a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal;

[0321] A measuring module 502, configured to perform measurements based on the first tracking signal;

[0322] Wherein, the first measurement signal includes at least one of the following:

[0323] M-1 repetitions of the first signal of the first SSB in the time domain, where M is an integer greater than 1;

[0324] A second signal;

[0325] The first signal is at least part of the signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0326] Optionally, the first signal includes at least one of the following:

[0327] Synchronization signal;

[0328] Physical Broadcast Channel PBCH;

[0329] Demodulation Reference Signal DMRS of PBCH;

[0330] Broadcast channel of other system information.

[0331] Optionally, the M-1 times of repetitions of the first signal in the time domain satisfy at least one of the following:

[0332] The SSB index corresponding to the M-1 times of repetitions is the same as the index of the first SSB;

[0333] The power corresponding to the M-1 times of repetitions is the same as the power corresponding to the first SSB;

[0334] The quasi-co-location QCL reference relationships corresponding to at least part of the signals in the repeated signal group are the same;

[0335] The signals in the repeated signal group are spaced X time domain units in the time domain, X≥0;

[0336] Wherein, the repeated signal group includes the first SSB and the M-1 times of repetitions of the first signal in the time domain.

[0337] Optionally, when the terminal performs measurement based on the first tracking signal, the first measurement signal includes the L times of repetitions of the first signal in the time domain, L≤M-1.

[0338] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0339] Includes at least two synchronization signals;

[0340] The at least two synchronization signals occupy at least two time slots;

[0341] The synchronization signal and the PBCH are in different time slots;

[0342] The PBCH occupies at least one time slot.

[0343] Optionally, when the number of the first SSBs is multiple, the multiple first SSBs share all or part of the signals.

[0344] Optionally, in a case where the first tracking signal includes at least two first SSBs and signal collision occurs to the at least two first SSBs, the apparatus further includes:

[0345] A first discarding module, configured to discard a first discarding signal of at least one first SSB among the at least two first SSBs, where the first discarding signal includes a collided signal or all signals.

[0346] Optionally, the second signal includes at least one of the following:

[0347] A synchronization signal different from the synchronization signal in the first SSB;

[0348] A reference signal different from the reference signal in the first SSB;

[0349] A second SSB.

[0350] Optionally, the second SSB satisfies at least one of the following:

[0351] The second SSB does not include a PBCH;

[0352] The second SSB includes at least one synchronization signal.

[0353] Optionally, in a case where the second SSB includes at least two synchronization signals, the at least two synchronization signals satisfy at least one of the following:

[0354] There is a time domain interval between each of the at least two synchronization signals;

[0355] The at least two synchronization signals occupy at least one time slot;

[0356] The at least two synchronization signals occupy the same frequency domain resources.

[0357] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0358] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0359] The QCL reference relationship between the second SSB and the first SSB is the same;

[0360] The index of the second SSB is the same as that of the first SSB;

[0361] The cell identifier of the second SSB is the same as that of the first SSB;

[0362] The second SSB is aligned with the first SSB at a preset frequency domain position.

[0363] Optionally, the second signal satisfies at least one of the following:

[0364] When the number of the second signals is multiple, the time domain interval between the multiple second signals is equal to the time domain interval between the synchronization signals in the first SSB;

[0365] The second signal is separated from the first SSB by at least one time domain unit.

[0366] Optionally, when the second signal overlaps with the first SSB on the same symbol, the apparatus further includes:

[0367] A second discarding module, configured to discard a second discarded signal of at least one of the second signal or the first SSB, where the second discarded signal includes a signal or an overlapping part on the overlapping symbol.

[0368] Optionally, the apparatus further includes:

[0369] A first determining module, configured to determine a measurement window length of the first tracking signal, where the measurement window length is related to at least one of the following:

[0370] The period of the first SSB;

[0371] The period of the mapping cycle from the first SSB to RO;

[0372] The period of the association between the first SSB and RO;

[0373] The period of the association mode between the first SSB and RO;

[0374] The period of the first SSB to CG PUSCH;

[0375] The configuration period of PRACH;

[0376] The determination period of the RO group for PRACH repetition.

[0377] Optionally, the transmission resource of the first measurement signal or the first SSB includes at least one of the following:

[0378] At least part of the transmission occasion of the first SSB;

[0379] At least part of the transmission frequency domain resource of the first SSB.

[0380] Optionally, the apparatus further includes:

[0381] A second determining module, configured to determine the transmission resource of the first measurement signal or the first SSB according to a first parameter of the first SSB; where the first parameter includes at least one of the following:

[0382] Sequence-related parameters of the first SSB;

[0383] Frequency-domain parameters of the first SSB;

[0384] Time-domain parameters of the first SSB.

[0385] Optionally, the device further includes:

[0386] A processing module, configured to receive downlink transmission using at least one of the first SSB and the first measurement signal as a QCL reference starting from a target time after the device receives the first tracking signal.

[0387] Optionally, the device further includes:

[0388] A third determination module, configured to determine the relevant parameters of the first measurement signal or the first SSB based on at least one of the following:

[0389] Index of the first SSB;

[0390] Synchronization signal in the first SSB;

[0391] PBCH DMRS in the first SSB;

[0392] MIB in the first SSB;

[0393] Layer 1 payload of PBCH;

[0394] System frame number;

[0395] Other system messages;

[0396] CORESET 0;

[0397] Search space 0;

[0398] Random access message 2 or message B;

[0399] Random access message 4;

[0400] PEI;

[0401] DCI for scheduling paging.

[0402] In the embodiments of the present application, the device 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 at least one of a first SSB and a first measurement signal, and the first measurement signal includes M-1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain. Thus, the device (such as a terminal) can perform measurements based on the time-domain enhanced first tracking signal, enabling terminals in the connected state and the non-connected state to better perform time-frequency tracking. In particular, terminals can also obtain better time-frequency tracking accuracy during initial access and random access phases, which helps improve the downlink transmission performance of the terminals.

[0403] The processing device for the tracking signal in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices other than terminals. Exemplarily, the terminal can include, but is not limited to, the types of the above-listed terminal 11, and other devices can be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0404] 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.

[0405] 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 shown in Figure 6 ,the processing device 600 for the tracking signal includes:

[0406] A sending module 601, configured to send a first tracking signal, where the first tracking signal includes at least one of a first SSB and a first measurement signal; the first measurement signal includes at least one of the following:

[0407] M-1 repetitions of the first signal of the first SSB in the time domain, where M is a positive integer greater than 1;

[0408] A second signal;

[0409] 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 in the first SSB.

[0410] Optionally, the first signal includes at least one of the following:

[0411] Synchronization signal;

[0412] PBCH;

[0413] DMRS of PBCH;

[0414] Broadcast channel of other system information.

[0415] Optionally, the M-1 repetitions of the first signal in the time domain satisfy at least one of the following:

[0416] The SSB index corresponding to the M-1 repetitions is the same as the index of the first SSB;

[0417] The power corresponding to the M-1 repetitions is the same as the power corresponding to the first SSB;

[0418] The quasi-co-location (QCL) reference relationships corresponding to at least some of the signals in the repeated signal group are the same;

[0419] The signals in the repeated signal group are spaced X time domain units apart in the time domain, where X≥0;

[0420] Wherein, the repeated signal group includes the first SSB and the M-1 repetitions of the first signal in the time domain.

[0421] Optionally, when the first tracking signal includes the first SSB, the first SSB satisfies at least one of the following:

[0422] Includes at least two synchronization signals;

[0423] The at least two synchronization signals occupy at least two time slots;

[0424] The synchronization signal and the PBCH are in different time slots;

[0425] The PBCH occupies at least one time slot.

[0426] Optionally, when the number of the first SSBs is multiple, the multiple first SSBs share all or part of the signals.

[0427] Optionally, when the first tracking signal includes at least two first SSBs and signal collision occurs between the at least two first SSBs, the apparatus further includes:

[0428] A third discarding module, configured to discard a first discarded signal of at least one of the at least two first SSBs, where the first discarded signal includes the collided signal or all signals.

[0429] Optionally, the second signal includes at least one of the following:

[0430] Other synchronization signals different from the synchronization signals in the first SSB;

[0431] Other reference signals different from the reference signals in the first SSB;

[0432] The second SSB.

[0433] Optionally, the second SSB satisfies at least one of the following:

[0434] The second SSB does not include PBCH;

[0435] The second SSB includes at least one synchronization signal.

[0436] 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:

[0437] There is a time domain interval between each of the at least two synchronization signals;

[0438] The at least two synchronization signals occupy at least one time slot;

[0439] The frequency domain resources occupied by the at least two synchronization signals are the same.

[0440] Optionally, the second SSB and the first SSB satisfy at least one of the following:

[0441] The bandwidth of the second SSB is the same as or different from the bandwidth of the first SSB;

[0442] The QCL reference relationship of the second SSB is the same as that of the first SSB;

[0443] The index of the second SSB is the same as that of the first SSB;

[0444] The cell identifier of the second SSB is the same as that of the first SSB;

[0445] The second SSB is aligned with the preset frequency domain position of the first SSB.

[0446] Optionally, the second signal satisfies at least one of the following:

[0447] When the number of the second signals is multiple, the time domain interval between the multiple second signals is equal to the time domain interval between the synchronization signals in the first SSB;

[0448] The second signal is separated from the first SSB by at least one time domain unit.

[0449] Optionally, when the second signal overlaps with the first SSB on the same symbol, the apparatus further comprises:

[0450] A fourth discarding module, configured to discard a second discarded signal of at least one of the second signal or the first SSB, where the second discarded signal includes a signal or an overlapping part on the overlapping symbol.

[0451] Optionally, the transmission resource of the first measurement signal or the first SSB includes at least one of the following:

[0452] At least part of the transmission occasion of the first SSB;

[0453] At least part of the transmission frequency domain resource of the first SSB.

[0454] Optionally, the apparatus further comprises:

[0455] A fourth determining module, configured to determine the transmission resource of the first measurement signal or the first SSB according to a first parameter of the first SSB; where the first parameter includes at least one of the following:

[0456] The sequence correlation parameter of the first SSB;

[0457] The frequency domain parameter of the first SSB;

[0458] The time domain parameter of the first SSB.

[0459] Optionally, the apparatus further comprises:

[0460] A fifth determining module, configured to determine or configure the related parameter of the first measurement signal or the first SSB based on at least one of the following:

[0461] The index of the first SSB;

[0462] The synchronization signal in the first SSB;

[0463] The PBCH DMRS in the first SSB;

[0464] The MIB in the first SSB;

[0465] The layer 1 payload of the PBCH;

[0466] The system frame number;

[0467] Other system messages;

[0468] CORESET 0;

[0469] Search space 0;

[0470] Message 2 or message B of random access;

[0471] Random access message 4;

[0472] PEI;

[0473] DCI for scheduling paging.

[0474] In the embodiments of the present application, the device sends a first tracking signal to the terminal. The first tracking signal includes at least one of a first SSB and a first measurement signal. The first measurement signal includes M - 1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. Among them, the first tracking signal can be understood as an SSB enhanced in the time domain. Furthermore, the terminal can perform measurements based on the first tracking signal enhanced in the time domain, so that 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 accuracy during the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal.

[0475] The tracking signal processing device provided by the embodiments of the present application can achieve Figure 4 Each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0476] As Figure 7 shown, the embodiments of the present application also provide 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, it implements each step of the above - mentioned tracking signal processing method embodiment and can achieve the same technical effects. When the communication device 700 is a network - side device, when the program or instruction is executed by the processor 701, it implements each step of the above - mentioned tracking signal processing method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0477] The embodiments of the present application also provide 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 as Figure 2 shown in the steps of the method embodiment. 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 can achieve the same technical effects. Specifically, Figure 8 FIG. is a schematic diagram of the hardware structure of a terminal for implementing the embodiments of the present application.

[0478] 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.

[0479] 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 may 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 does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0480] 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 processing unit 8041 processes the image data of still 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 a liquid crystal display, an organic light-emitting diode, etc. 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 called 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 here.

[0481] In the embodiments of the present application, after the radio frequency unit 801 receives downlink data from a network-side device, it can be transmitted to the processor 810 for processing; in addition, the radio frequency unit 801 can 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.

[0482] The memory 809 can be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. 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.

[0483] 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.

[0484] Among them, the radio frequency unit 801 is used to receive a first tracking signal, and the first tracking signal includes at least one of a first SSB and a first measurement signal;

[0485] The processor 810 is used to perform measurements based on the first tracking signal;

[0486] Among them, the first measurement signal includes at least one of the following:

[0487] The first signal of the first SSB is repeated M - 1 times in the time domain, where M is an integer greater than 1;

[0488] Second signal;

[0489] The first signal is at least part of the signals in the first SSB, and the second signal is a signal different from the first signal in the first SSB.

[0490] 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 at least one of a first SSB and a first measurement signal, and the first measurement signal includes M - 1 repetitions of the first signal of the first SSB in the time domain and / or a second signal. The first tracking signal can be understood as an SSB enhanced in the time domain. Thus, the terminal can perform measurements based on the time - domain enhanced first tracking signal, enabling better time - frequency tracking for both connected - state and non - connected - state terminals. In particular, the terminal can also obtain better time - frequency tracking accuracy during the initial access and random access phases, which helps to improve the downlink transmission performance of the terminal.

[0491] 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 - mentioned tracking signal processing method, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0492] An embodiment of the present application further provides 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 the steps of the method embodiment as Figure 4 shown. This network - side device embodiment corresponds to the above - mentioned network - side device method embodiment. The various implementation processes and implementation manners of the above - mentioned method embodiment can all be applied to this network - side device embodiment, and can achieve the same technical effects.

[0493] Specifically, an embodiment of the present application further provides a network - side device. As Figure 9 shown, 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. The radio frequency device 92 processes the received information and then sends it out through the antenna 91.

[0494] The method executed by the network - side device in the above - mentioned embodiments can be implemented in the baseband device 93, and the baseband device 93 includes a baseband processor.

[0495] The baseband device 93 may include, for example, at least one baseband board on which a plurality of chips are provided, such as Figure 9 shown, where 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.

[0496] The network-side device may further include a network interface 96, which is, for example, a Common Public Radio Interface (CPRI).

[0497] 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, and achieves the same technical effects. To avoid repetition, it will not be elaborated here.

[0498] 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, it will not be elaborated here.

[0499] Wherein, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks, or optical discs, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0500] The embodiments of the present application further provide a chip, which 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 each process of the above method embodiments for processing the tracking signal, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0501] 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, etc.

[0502] The embodiments of the present application further provide 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 method embodiments for processing the tracking signal, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0503] 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 method for processing a tracking signal as described above, and the network-side device can be used to execute the steps of the method for processing a tracking signal as described above.

[0504] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, an element defined by the statement "including one..." 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, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0505] Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, it 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 the terminal or the network-side device to execute the methods described in various embodiments of the present application.

[0506] The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the spirit and scope protected by the claims of the present application, can also make many forms of embodiments, and these embodiments are all within the protection scope of the present application.

Claims

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

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

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

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

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

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

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

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

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

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

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

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

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

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

15. The method according to any one of claims 1-14, characterized in that, The transmission resources of the first measurement signal or the first SSB 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.

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

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

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

19. A method for processing a tracking signal, characterized in that, Including: The network side device sends a first tracking signal, where the first tracking signal includes at least one of the first SSB and the first measurement signal; 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 time domain, where M is a positive integer greater than 1; 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 in the first SSB.

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

21. The method according to claim 19, characterized in that, The M-1 times repetition of the first signal in the time domain satisfies at least one of the following: The SSB index corresponding to the M-1 times repetition is the same as the index of 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 time domain units in the time 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 time domain.

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

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

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

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

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

27. The method according to claim 26, wherein 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 at least two synchronization signals occupy the same frequency domain resources.

28. The method according to claim 25, characterized in that 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 frequency domain position of the first SSB.

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

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

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

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

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

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

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

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

37. The device according to any one of claims 34-36, characterized in that, The device further includes: A first determining module, configured to determine the measurement window length of the first tracking signal, where the measurement window length is related to at least one of the following: The period of the first SSB; The period of the first SSB to RO mapping cycle; The period of the first SSB to RO association; The period of the first SSB to RO association pattern; The period of the first SSB to CG PUSCH; The configuration period of PRACH; The determination period of the RO group for PRACH repetition.

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

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

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

41. A terminal, characterized in that, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the tracking signal processing method according to any one of claims 1-18 are implemented.

42. A network-side device, characterized in that, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the tracking signal processing method according to any one of claims 19-33 are implemented.

43. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the tracking signal processing method according to any one of claims 1-18 are implemented, or the steps of the tracking signal processing method according to any one of claims 19-33 are implemented.

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