Method and apparatus for transmitting synchronization / physical broadcast channel block

Abstract

The application provides a method and device for transmitting an SS / PBCH block. The method comprises: a terminal device receiving one SS / PBCH block in an SS / PBCH block burst set, and then obtaining indication information according to the one SS / PBCH block. The indication information can be used to indicate candidate indexes of at least one SS / PBCH block in the SS / PBCH block burst set, and the number of the candidate indexes is greater than 64. For example, the number of the candidate indexes can be 128, 160, 180, 196 or 240, etc. The network device can not be limited to 64 candidate indexes, that is, the candidate positions for transmitting the SS / PBCH block are not limited to 64, so that the network device can transmit more SS / PBCH blocks for the terminal device.

Description

Technical Field

[0001] This application relates to the field of wireless communication network technology, and in particular to a method and apparatus for transmitting a synchronization / physical broadcast channel block (SS / PBCH block). Background Technology

[0002] New radio (NR) systems can be divided into two parts based on frequency band: FR1 (frequency range 1) and FR2. FR1 mainly refers to the spectrum below 6 GHz, while FR2 mainly refers to the spectrum from 6 GHz to 52.6 GHz. For example, the FR1 band can support sub-carrier spacing (SCS) of 15 kHz and 30 kHz; the FR2 band can support SCS of 60 kHz, 120 kHz, and 240 kHz or wider sub-carrier spacing.

[0003] Depending on the SCS, the synchronization signal block pattern (SS / PBCH block pattern) will also be affected. The SS / PBCH block is the primary information demodulated by the terminal equipment during the initial access process. This SS / PBCH block mainly includes the primary synchronization signal (PSS), the secondary synchronization signal (SSS), and the physical broadcast channel (PBCH). The terminal equipment can complete cell synchronization and coarse symbol-level timing synchronization by demodulating the PSS and SSS. The PBCH can carry the master information block (MIB) information configured by higher layers. The terminal equipment can complete system frame-level timing synchronization and obtain the location information of system information block / remaining minimum system information (SIB1 / RMSI) by demodulating the MIB information. Furthermore, the terminal device can obtain the type 0 physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH) through the information in the SIB1 / RMSI.

[0004] With the development of technology, the number of usable frequency bands is constantly increasing. Therefore, how to transmit SS / PBCH blocks urgently needs to be solved. Summary of the Invention

[0005] This application provides a method and apparatus for transmitting SS / PBCH blocks, which solves the problems of the number of candidate indices during the transmission of SS / PBCH block burst sets, and whether the SS / PBCH block burst set has enough time slots to be transmitted.

[0006] In a first aspect, this application provides a method for transmitting SS / PBCH blocks, the method comprising: a terminal device receiving an SS / PBCH block; and obtaining indication information based on the SS / PBCH block. The indication information is used to indicate a candidate index of at least one SS / PBCH block in an SS / PBCH block burst set, the number of candidate indices being greater than 64, and the SS / PBCH block burst set being the set containing the aforementioned SS / PBCH block.

[0007] In the technical solution provided in this application, the indication information can not only indicate the candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, but also indicate more candidate indices, such as indicating more than or equal to 128 candidate indices. Simultaneously, the network device can send a greater number of SS / PBCH blocks than is limited to 64 candidate indices (i.e., not limited to 64 candidate positions); the terminal device can obtain the maximum range of SS / PBCH blocks that the network device can send through the indication information.

[0008] In one possible implementation, the method further includes: the terminal device receiving a set of SS / PBCH block bursts.

[0009] Secondly, this application provides a method for transmitting SS / PBCH blocks, the method further comprising: a terminal device receiving configuration information; wherein the configuration information includes the length of a burst set transmission window, and the length of the burst set transmission window is greater than 5ms, the burst set transmission window being used by the terminal device to receive one or more SS / PBCH block burst sets.

[0010] In the technical solution provided in this application, the network device can have more time slots to send one or more SS / PBCH blocks. Meanwhile, the terminal device needs to receive SS / PBCH blocks within the DRS window; therefore, by extending the length of the DRS window, the terminal device can receive a greater number of SS / PBCH blocks within that DRS window.

[0011] Optionally, the method further includes: the terminal device receiving an SS / PBCH block and obtaining indication information based on the SS / PBCH block. The indication information is used to indicate a candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, the number of candidate indices being greater than 64, and the SS / PBCH block burst set being the set containing the aforementioned SS / PBCH block.

[0012] Combining the methods provided in the first and second aspects, the terminal device does not need to use 1 bit of information. This allows us to determine the specific location of the SS / PBCH block burst set, enabling the indication information to point to a larger number of candidate indices. Furthermore, even if the network device needs to transmit a larger number of SS / PBCH blocks, it can still ensure that the indication information points to more candidate indices and that the network device has sufficient remaining time slots to send one or more SS / PBCH blocks that have not been sent in time.

[0013] Thirdly, this application provides a communication device for executing the method in the first aspect or any possible implementation thereof. Specifically, the communication device includes corresponding units for executing the method in the first aspect or any possible implementation thereof.

[0014] For example, the communication device may include a transceiver unit and a processing unit.

[0015] Fourthly, this application provides a communication device for executing the method in the second aspect or any possible implementation thereof. Specifically, the communication device includes corresponding units for executing the method in the second aspect or any possible implementation thereof.

[0016] For example, the communication device may include a transceiver unit and a processing unit. For example, the processing unit may be used to control the transceiver unit and receive configuration information.

[0017] Fifthly, this application provides a communication device including a processor for executing a program stored in a memory, which, when executed, causes the communication device to perform the method as described in the first aspect or any possible implementation thereof.

[0018] In one possible implementation, the memory is located outside the aforementioned communication device.

[0019] In a sixth aspect, this application provides a communication device including a processor for executing a program stored in a memory, which, when executed, causes the communication device to perform the method as described in the second aspect or any possible implementation thereof.

[0020] In one possible implementation, the memory is located outside the aforementioned communication device.

[0021] In a seventh aspect, this application provides a communication device including a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed, the communication device performs the method as shown in the first aspect or any possible implementation thereof.

[0022] Eighthly, this application provides a communication device including a processor, a memory, and a program stored in the memory and executable on the processor, wherein when the program is executed, the communication device performs the method as shown in the second aspect above or any possible implementation thereof.

[0023] Ninthly, this application provides a communication device, which includes a processor, a memory, and a transceiver. The transceiver is used to receive or transmit signals; the memory is used to store computer code; and the processor is used to execute the computer code, causing the communication device to perform the method shown in the first aspect or any possible implementation thereof.

[0024] In a tenth aspect, this application provides a communication device, which includes a processor, a memory, and a transceiver. The transceiver is used to receive or transmit signals; the memory is used to store computer code; and the processor is used to execute the computer code, causing the communication device to perform the method shown in the second aspect or any possible implementation thereof.

[0025] In one aspect, this application provides a communication device, which includes a processing circuit and an interface circuit. The interface circuit is used to acquire an SS / PBCH block. The processing circuit is used to obtain indication information based on the SS / PBCH block. The indication information is used to indicate the candidate index of at least one SS / PBCH block in an SS / PBCH block burst set, the number of candidate indices being greater than 64, and the SS / PBCH block burst set being the set in which the aforementioned SS / PBCH block is located.

[0026] In one possible implementation, the interface circuitry is also used to acquire the SS / PBCH block burst set.

[0027] In a twelfth aspect, this application provides a communication device including a processing circuit and an interface circuit. The interface circuit is used to acquire configuration information, wherein the configuration information includes the length of a burst set transmission window, and the length of the burst set transmission window is greater than 5ms. The burst set transmission window is used by a terminal device to receive one or more SS / PBCH block burst sets.

[0028] Optionally, the interface circuit is also used to acquire an SS / PBCH block; the processing circuit is also used to obtain indication information based on the SS / PBCH block.

[0029] In a thirteenth aspect, this application provides a communication device, which includes a processing unit and a transceiver unit. The transceiver unit is used to transmit and receive signals. The processing unit is used to perform the following through the transceiver unit: sending an SS / PBCH block burst set to a terminal device, wherein one or more SS / PBCH blocks in the SS / PBCH block burst set include indication information, the indication information being used to indicate a candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, and the number of candidate indices is greater than 64.

[0030] Optionally, one SS / PBCH block in the SS / PBCH block burst set may include indication information. Alternatively, multiple SS / PBCH blocks in the SS / PBCH block burst set may include indication information. Or, each SS / PBCH block in the SS / PBCH block burst set may include indication information.

[0031] In one possible implementation, the processing unit is further configured to perform the following via the transceiver unit: sending configuration information to the terminal device; wherein the configuration information includes the length of the burst set transmission window, and the length of the burst set transmission window is greater than 5ms, and the burst set transmission window is used by the terminal device to receive one or more SS / PBCH block burst sets.

[0032] In a fourteenth aspect, this application provides a communication device, which includes a processor, a memory, and a transceiver. The transceiver is used to receive or transmit signals; the memory is used to store computer code; and the processor is used to execute the computer code and control the transceiver to send SS / PBCH block burst sets to a terminal device.

[0033] In one possible implementation, the processor is further configured to control the transceiver to send configuration information to the terminal device; wherein the configuration information includes the length of the burst set transmission window, and the length of the burst set transmission window is greater than 5ms, and the burst set transmission window is used by the terminal device to receive one or more SS / PBCH block burst sets.

[0034] In conjunction with aspects one through fourteen, in one possible implementation, the indication information includes information for indicating the demodulation reference signal (DMRS) sequence and information for the PBCH load; wherein the DMRS sequence occupies 3 bits and the PBCH load occupies 4 bits.

[0035] Combining aspects one through fourteen, in one possible implementation, the number of candidate indices is greater than or equal to 128.

[0036] In conjunction with aspects one through fourteen, in one possible implementation, at least two SS / PBCH block burst sets among the multiple SS / PBCH block burst sets occupy different time slots, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in the same position; or, at least two SS / PBCH sets among the multiple SS / PBCH block burst sets occupy different time slots, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in different positions; or, at least two SS / PBCH sets among the multiple SS / PBCH block burst sets include different numbers of SS / PBCH blocks.

[0037] In conjunction with aspects one through fourteen, in one possible implementation, if at least two SS / PBCH block burst sets occupy different time slots in a plurality of SS / PBCH block burst sets, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in the same position, the SS / PBCH block burst set sent by the network device to the terminal device is determined by the network device based on the Listen-Before-Speak (LBT) result.

[0038] In conjunction with aspects one through fourteen, in one possible implementation, the configuration information also includes the period of the burst set transmission window, and the period of the burst set transmission window is different from the period of the SS / PBCH block burst set.

[0039] Combining aspects one through fourteen, in one possible implementation, the temporal location occupied by an SS / PBCH block in the SS / PBCH block burst set satisfies the following condition:

[0040] The starting symbol of an SS / PBCH block in the SS / PBCH block burst set is any even-numbered symbol from the first to the eleventh symbol in a time slot configured by the network device; and / or, the starting symbol interval between two adjacent SS / PBCH blocks in the SS / PBCH block burst set is any one or more of 3, 5, 7 or 9.

[0041] In conjunction with aspects one through fourteen, in one possible implementation, an SS / PBCH block and the physical downlink shared channel (PDSCH) associated with an SS / PBCH block satisfy the following condition:

[0042] PDSCH occupies a symbol length of 1 or 3; and / or,

[0043] The starting symbol of PDSCH is the second or fourth of the four symbols occupied by an SS / PBCH block.

[0044] In a fifteenth aspect, this application provides a computer-readable storage medium for storing a computer program that, when run on a computer, causes the methods shown in the first aspect or any possible implementation thereof to be executed.

[0045] In a sixteenth aspect, this application provides a computer-readable storage medium for storing a computer program that, when run on a computer, causes the methods shown in the second aspect or any possible implementation thereof to be executed.

[0046] In a seventeenth aspect, this application provides a computer program product comprising a computer program or computer code that, when run on a computer, causes the methods shown in the first aspect or any possible implementation thereof to be executed.

[0047] In an eighteenth aspect, this application provides a computer program product comprising a computer program or computer code that, when run on a computer, causes the methods shown in the second aspect or any possible implementation thereof to be performed.

[0048] In a nineteenth aspect, this application provides a computer program that, when run on a computer, executes the method shown in the first aspect or any possible implementation thereof.

[0049] In a twentieth aspect, this application provides a computer program that, when run on a computer, executes the methods shown in the second aspect or any possible implementation thereof.

[0050] In a twentieth aspect, this application provides a communication apparatus for performing the method as shown in the first aspect or any possible implementation thereof, or the method as shown in the second aspect or any possible implementation thereof.

[0051] In a twentieth aspect, this application provides a wireless communication system, which includes a network device and a terminal device. The network device is used to transmit SS / PBCH block burst sets; or, the network device is used to transmit the aforementioned configuration information. The terminal device is used to execute the method shown in the first aspect or any possible implementation of the first aspect, or to execute the method shown in the second aspect or any possible implementation of the second aspect.

[0052] The indication information in this application embodiment can be used to indicate 128 candidate indices; or, the indication information can be used to indicate 256 candidate indices; or, the indication information can be used to indicate 512 candidate indices; or, the indication information can be used to indicate 1024 candidate indices; or, the indication information can be used to indicate 2048 candidate indices. It is understood that the number of candidate indices indicated by the indication information shown in this application embodiment is only an example, and the number of candidate indices may have other values, which will not be detailed here. That is, the corresponding number of candidate indices can be indicated by the information used to indicate the DMRS sequence and the information of the PBCH payload. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0054] Figure 2 This is a schematic diagram of the SS / PBCH block burst set when the subcarrier spacing is 15KHz, provided in an embodiment of this application.

[0055] Figure 3 This is a schematic diagram of the SS / PBCH block burst set when the subcarrier spacing is 120KHz, provided in an embodiment of this application.

[0056] Figure 4 This is a schematic diagram of a method for transmitting SS / PBCH blocks provided in an embodiment of this application;

[0057] Figure 5a This is a schematic diagram of the SS / PBCH block burst set when the subcarrier spacing is 120KHz, provided in an embodiment of this application.

[0058] Figure 5b This is a schematic diagram of the SS / PBCH block burst set when the subcarrier spacing is 120KHz, provided in an embodiment of this application.

[0059] Figure 6 This is a schematic diagram of a method for transmitting SS / PBCH blocks provided in an embodiment of this application;

[0060] Figure 7a This is a schematic diagram illustrating the relationship between the DRS window and the SS / PBCH block burst set provided in an embodiment of this application;

[0061] Figure 7b This is a schematic diagram illustrating the relationship between a DRS window and multiple SS / PBCH block burst sets provided in an embodiment of this application;

[0062] Figure 7c This is a schematic diagram illustrating the relationship between multiple SS / PBCH block burst sets provided in an embodiment of this application;

[0063] Figure 7d This is a schematic diagram illustrating the relationship between multiple SS / PBCH block burst sets provided in an embodiment of this application;

[0064] Figure 7e This is a schematic diagram illustrating the relationship between multiple SS / PBCH block burst sets provided in an embodiment of this application;

[0065] Figure 8 This is a schematic diagram illustrating the relationship between the DRS window and the SS / PBCH block burst set provided in an embodiment of this application;

[0066] Figure 9a This is a schematic diagram of the SS / PBCH block burst set when the subcarrier spacing is 120KHz, provided in an embodiment of this application.

[0067] Figure 9b This is a schematic diagram of the SS / PBCH block burst set when the subcarrier spacing is 120KHz, provided in an embodiment of this application.

[0068] Figure 9c This is a schematic diagram of the SS / PBCH block burst set when the subcarrier spacing is 120KHz, provided in an embodiment of this application.

[0069] Figure 10a This is a schematic diagram illustrating the relationship between an SS / PBCH block and a PDSCH according to an embodiment of this application;

[0070] Figure 10b This is a schematic diagram illustrating the relationship between an SS / PBCH block and a PDSCH according to an embodiment of this application;

[0071] Figure 10c This is a schematic diagram illustrating the relationship between an SS / PBCH block and a PDSCH according to an embodiment of this application;

[0072] Figure 11 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0073] Figure 12 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0074] Figure 13 This is a schematic diagram of a circuit system provided in an embodiment of this application. Detailed Implementation

[0075] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described below in conjunction with the accompanying drawings.

[0076] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used only to distinguish different objects and not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0077] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0078] In this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0079] The network architecture involved in this application will be described in detail below.

[0080] The technical solutions provided in this application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5th Generation (5G) systems, New Radio (NR) systems, and other future communication systems such as 6G. Optionally, the technical solutions provided in this application can also be applied to Internet of Things (IoT) systems, Narrow Band Internet of Things (NB-IoT) systems, etc.

[0081] See Figure 1 , Figure 1 This is a schematic diagram of the architecture of the communication system provided in this application. For example... Figure 1As shown, the communication system includes one or more network devices. Figure 1 This example uses only one network device; and one or more terminal devices connected to that network device. Figure 1 This example uses only two terminal devices.

[0082] The network device can be any device capable of communicating with the terminal device. The network device can be any device with wireless transceiver capabilities, including a base station, access point, or transmission reception point (TRP), or a device in an access network that communicates with the terminal device via one or more sectors (cells) on the air interface; this application does not limit this. For example, the base station can be an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a next-generation base station (gNB) in a 5G network. It is understood that the base station can also be a base station in a future evolved public land mobile network (PLMN).

[0083] Optionally, the network device can also be an access node, wireless relay node, or wireless backhaul node in a wireless local area network (WiFi) system.

[0084] Optionally, the network device can also be a wireless controller in a cloud radio access network (CRAN) scenario.

[0085] For ease of description, the following will use a base station as an example to illustrate the network equipment involved in this application. Optionally, in some base station deployments, the base station may include a centralized unit (CU) and a distributed unit (DU), etc. In other base station deployments, the CU may also be divided into a CU-control plane (CP) and a CU-user plane (UP), etc. In other base station deployments, the base station may also be an open radio access network (ORAN) architecture, etc. This application does not limit the specific deployment method of the base station.

[0086] The terminal equipment can also be referred to as user equipment (UE). In this application, the terminal equipment can be a device with wireless transceiver capabilities, capable of communicating with one or more core network (CN) devices (or core devices) via access network equipment (or access devices) in a radio access network (RAN). Optionally, the terminal equipment can also be referred to as an access terminal, terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless network equipment, user agent, or user device, etc. Optionally, the terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (e.g., on airplanes, balloons, and satellites). Optionally, the terminal equipment can be a handheld device with wireless communication capabilities, vehicle-mounted equipment, wearable device, or a terminal in the Internet of Things (IoT), vehicle-to-everything (V2X) network, 5G network, or any form of terminal in future networks, etc., and this application is not limited in this regard.

[0087] Optional, Figure 1 In the communication system shown, terminal devices can also communicate with each other through technologies such as device-to-device (D2D), vehicle-to-everything (V2X), or machine-to-machine (M2M). This application does not limit the communication method between terminal devices.

[0088] Figure 1 In the communication system shown, network device and terminal device 1 can be used to execute the methods provided in the embodiments of this application. Network device and terminal device 2 can also be used to execute the methods provided in the embodiments of this application.

[0089] The following will provide a detailed introduction to some background information related to this application.

[0090] A synchronization / physical broadcast channel (SS / PBCH) block includes at least a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). For example, this SS / PBCH block can occupy 4 orthogonal frequency division multiplexing (OFDM) symbols in the time domain and 20 resource blocks (RBs) in the frequency domain.

[0091] It is understood that the SS / PBCH block shown above can also be called a synchronization signal block (SSB), etc., and this application does not limit its name.

[0092] In practical implementation, network devices can transmit multiple SS / PBCH blocks using time division multiplexing (TDM). Optionally, network devices can transmit these multiple SS / PBCH blocks in the form of SS / PBCH block burst sets. Furthermore, network devices can configure the period of the SS / PBCH block burst set, transmitting the SS / PBCH block burst set at a certain interval. Within the period of the SS / PBCH block burst set, the number of SS / PBCH blocks in the SS / PBCH block burst set can be related to the frequency band and / or sub-carrier spacing (SCS). Here, the frequency band can be understood as the frequency band (or spectrum) where the network device and / or terminal device operate, and the sub-carrier spacing can be understood as the sub-carrier spacing used by the network device and / or terminal device. Generally, the network device and terminal device operate in the same frequency band, and the sub-carrier spacing used by the network device is the same as that used by the terminal device.

[0093] In this application, the frequency band may include low-frequency bands and high-frequency bands (for example, the spectrum from 52.6 GHz to 71 GHz). In some scenarios, the frequency band may be a licensed band, while in others it may be an unlicensed band, etc. The embodiments of this application do not limit this. Unlicensed bands can also be understood as shared bands.

[0094] Optionally, the number of SS / PBCH blocks in the SS / PBCH block burst set can be related to the frequency band in which the network device and / or terminal device operates. For example, when the frequency band f is less than or equal to 3 GHz, the maximum number of SS / PBCH blocks in the SS / PBCH block burst set can be 4, and the minimum can be 1; when the frequency band f is greater than 3 GHz and less than or equal to 6 GHz, the maximum number of SS / PBCH blocks in the SS / PBCH block burst set can be 8, and the minimum can be 1; when the frequency band f is greater than 6 GHz, the maximum number of SS / PBCH blocks in the SS / PBCH block burst set can be 64, and the minimum can be 1.

[0095] Optionally, the number of SS / PBCH blocks in the SS / PBCH block burst set may also be related to the subcarrier spacing used by the network device and / or terminal device.

[0096] For example, the number of SS / PBCH blocks in the SS / PBCH block burst set can be as follows for different subcarrier spacings:

[0097] For example, when the SCS is 15kHz and the duration of the SS / PBCH block burst set sent by the network device is 5ms, the expression for the start symbol of the SS / PBCH block is {2,8}+14n, where n=0,1,2,3,4.

[0098] Where 2 and 8 represent the starting symbol of an SS / PBCH block in a time slot, respectively; n represents the candidate time slot occupied by the burst set of the SS / PBCH block, and n = 0, 1, 2, 3, 4 means that the burst set of the SS / PBCH block can occupy 5 time slots.

[0099] Since one time slot includes 14 OFDM symbols, 14 indicates that the SS / PBCH block cycles within a time slot. In other words, the pattern (or location distribution) of the SS / PBCH block burst set cycles within a time slot. Alternatively, it can be said that the relative positions of the SS / PBCH blocks in the pattern of the SS / PBCH block burst set are the same in different time slots. This can also be understood as the offsets of SS / PBCH blocks with the same relative position from the starting positions of their respective SS / PBCH block burst sets being the same in different SS / PBCH block burst sets. The value of n is obtained relative to the duration of the SS / PBCH block burst set. As shown above, the duration of the SS / PBCH block burst set is 5 ms, and one time slot is 1 ms, so n can have 5 values.

[0100] like Figure 2As shown, when the SCS is 15KHz, one time slot is 1ms, and the length of the SS / PBCH block burst set is 5ms, the candidate time slots for this SS / PBCH block burst set are 5 time slots. Figure 2 Time slot 0 (the time slot corresponding to n=0) includes two SS / PBCH blocks, one with a starting symbol of symbol 2 and the other with a starting symbol of symbol 8. Time slot 1 (the time slot corresponding to n=1) also includes two SS / PBCH blocks, one with a starting symbol of symbol 2 and the other with a starting symbol of symbol 8. The pattern of the SS / PBCH blocks in time slot 0 is the same as that in time slot 1. Similarly, the patterns of the SS / PBCH blocks in time slots 2, 3, and 4 are the same as those in time slot 0. Figure 2 It is also shown that the period of the SS / PBCH block burst set is 20ms. Understandably, Figure 2 The 20ms period of the SS / PBCH block burst set shown is merely an example. In practical applications, the period of this SS / PBCH block burst set can also be 5ms, 10ms, 40ms, 80ms, and 160ms, etc., and this application does not limit it in this regard. It is understood that the description of the period of this SS / PBCH block burst set also applies below.

[0101] Furthermore, when the SCS is 15kHz, the network device has a maximum of 10 positions for transmitting SS / PBCH blocks. Using candidate indices to represent these 10 positions, there are 10 candidate indices in the SS / PBCH block burst set. It is understood that the candidate indices shown above can represent candidate positions of SS / PBCH blocks in the SS / PBCH block burst set, etc., and this application does not limit this. In other words, the candidate index in the embodiments of this application can also be understood as a candidate position, transmission opportunity, etc. For example, the transmission opportunity can be used to indicate that the network device has 10 transmission opportunities to transmit one or more SS / PBCH blocks in the SS / PBCH block burst set. The following will use candidate indices as an example to illustrate the method provided in the embodiments of this application.

[0102] As described above, when the SCS is 15kHz, the network device can have a maximum of 10 candidate indices for transmitting SS / PBCH blocks from the SS / PBCH set. In other words, the network device can transmit SS / PBCH blocks at the positions corresponding to the 10 candidate indices. In this case, the network device can use 3 bits of information representing the demodulation reference signal (DMRS) sequence in the PBCH and 1 bit of information from the PBCH payload information. This represents the candidate indexes of the 10 SS / PBCH blocks. It can be understood that the candidate indexes of the 10 SS / PBCH blocks shown above can also be interpreted as: the network device can indicate the candidate indexes of the 10 SS / PBCH blocks using information representing the DMRS sequence and PBCH payload. Furthermore, the terminal device can use 3 bits of information representing the DMRS sequence in the PBCH and 1 bit of information in the PBCH payload. The number of candidate indices is 10.

[0103] After the network device sends the SS / PBCH block set, the terminal device receives the SS / PBCH blocks within the discoveryburst transmission window (DRS window). For example, if the duration of the SS / PBCH block burst set sent by the network device is 5ms, then the duration of the DRS window can also be 5ms.

[0104] For example, when the SCS is 30kHz and the duration of the SS / PBCH block burst set sent by the network device is 5ms, the expression for the start symbol of the SS / PBCH block is {2,8}+14n, where n=0,1,2,3,4,5,6,7,8,9.

[0105] When the SCS is 30kHz, one time slot is 0.5ms, and the length of the SS / PBCH block burst set is 5ms, the SS / PBCH block burst set can occupy 10 time slots, and the candidate indices of the SS / PBCH blocks in this burst set are 20. For an explanation of n, please refer to the explanation when the SCS is 15kHz; it will not be detailed here.

[0106] As described above, when the SCS is 30kHz, the network device has a maximum of 20 positions for transmitting SS / PBCH blocks from the SS / PBCH block burst set. In other words, the network device can transmit SS / PBCH blocks at the positions corresponding to 20 candidate indices. In this case, the network device can use 3 bits of information representing the DMRS sequence in the PBCH and 2 bits of information in the PBCH payload information. This represents the candidate index for the 20 SS / PBCH blocks. Furthermore, the terminal device can use 3 bits of information representing the DMRS sequence in the PBCH and 2 bits of information in the PBCH payload information. There are 20 candidate indices.

[0107] It is understood that this application does not limit the duration of a time slot between different SCSs, or the relationship between the duration of a time slot.

[0108] For example, when the SCS is 120KH and the duration of the SS / PBCH block burst set sent by the network device is 5ms, the expression for the starting symbol of the SS / PBCH block is {4,8,16,20}+28n; n=0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18.

[0109] Since 28 represents the number of OFDM symbols occupied by two time slots, it indicates that the SS / PBCH block cycles in units of two time slots. 4, 8, 16, and 20 represent the starting symbol of the SS / PBCH block within each pair of time slots. In other words, the pattern of this SS / PBCH block burst set cycles in units of two time slots. Alternatively, it can be said that, in units of two time slots, the relative positions of the SS / PBCH blocks in the pattern are the same within each pair of time slots.

[0110] The SS / PBCH block burst set can occupy 16×2=32 time slots, and the candidate index of the SS / PBCH block in the SS / PBCH block burst set is 64.

[0111] The network device sends SS / PBCH block sets with a length of 5ms. The terminal device can receive SS / PBCH blocks within the DRS window, which has a length of 5ms. For example... Figure 3 As shown, Figure 3 In this context, 'n' can be understood as the value of 'n' in the expression for the start symbol of the SS / PBCH block shown above. When n = 5 and n = 6 (i.e., in every two time slots), the relative positions of the SS / PBCH blocks in the pattern are the same. It is understood that the length shown in this application can also be interpreted as duration, and this duration is shown in milliseconds (ms). This application does not limit the unit of this duration; for example, the unit of this duration can also be microseconds (µm), seconds (s), etc.

[0112] For example, when the SCS is 240kHz and the duration of the SS / PBCH block burst set sent by the network device is 5ms, the expression for the start symbol of the SS / PBCH block is {8,12,16,20,32,36,40,44}+56n; n=0,1,2,3,4,5,6,7,8.

[0113] Here, 56 represents the number of OFDM symbols occupied by four time slots, indicating that SS / PBCH blocks cycle in units of four time slots. 8, 12, 16, 20, 32, 36, 40, and 44 represent the starting symbol of the SS / PBCH block within each four time slots. Furthermore, an SS / PBCH block burst set can occupy 8 × 4 = 32 time slots, and the candidate indices of the SS / PBCH blocks in this burst set are 64.

[0114] When the SCS is 120kHz or 240kHz, the network device has a maximum of 64 positions for transmitting SS / PBCH blocks in the SS / PBCH block burst set. In this case, the network device can use 3 bits of information representing the DMRS sequence in the PBCH and 3 bits of information in the PBCH payload information. This represents the candidate index for the 64 SS / PBCH blocks. Furthermore, the terminal device can use 3 bits of information representing the DMRS sequence in the PBCH and 3 bits of information in the PBCH payload information. There are 64 candidate indices.

[0115] It is understandable that the number of SS / PBCH blocks shown above represents the maximum number of SS / PBCH blocks that a network device can transmit. However, in practical applications, under the corresponding subcarrier spacing, the network device can configure the SS / PBCH block burst set through relevant parameters in system information block (SIB) 1 (such as ssb-PositionsInBurst). For example, when the SCS is 15kHz and the relevant parameter in SIB1 is 1011001011, the number of multiple SS / PBCH blocks included in the SS / PBCH block burst set is 8. Here, "1" indicates that an SS / PBCH block was transmitted in the corresponding time domain, and "0" indicates that no SS / PBCH block was transmitted in the corresponding time domain. For example, when the SCS is 120KHz or 240KHz, and the relevant parameters in SIB1 are 010011101000000101011100100000010100111010110001001111001000001, the number of SS / PBCH blocks included in the SS / PBCH block burst set is 26.

[0116] Among them, 1 bit of information in the PBCH payload information This can be used to indicate the specific location of the SS / PBCH block burst set. In other words, it's 1 bit of information in the PBCH payload. It can be used for half-radio frame indication. Generally, the SS / PBCH blocks in the SS / PBCH block burst set need to be transmitted within 5ms. For example... Figure 2 As shown, when the period of the SS / PBCH block burst set is 20ms, the SS / PBCH block burst set may occur within any 5ms interval within that 20ms. The network device sends the SS / PBCH block burst set, and the terminal device receives the SS / PBCH blocks within the discovery burst transmission window (DRS window). Since the network device transmits the SS / PBCH block burst set within 5ms, the length of the DRS window can be less than or equal to 5ms.

[0117] Therefore, network devices transmit SS / PBCH block burst sets within the period of the SS / PBCH block set. This can be used to indicate that the SS / PBCH block burst set is within the first 5ms; correspondingly, the terminal device receives the SS / PBCH block within the DRS window. Alternatively, this... This can be used to indicate that the SS / PBCH block burst set is within the second 5ms; correspondingly, the terminal device receives the SS / PBCH block within the DRS window, etc. This allows the terminal device to promptly determine the DRS window and receive or listen to the SS / PBCH block burst set within that DRS window. Alternatively, it can be described as assuming that the terminal device receives or listens to the SS / PBCH block burst set within the DRS window. This application does not limit the statement regarding the terminal device receiving or listening to the SS / PBCH block burst set. Optionally, the terminal device may also receive system information block (SIB) 1 information corresponding to the SS / PBCH block, as well as other system information or data information, within the DRS window; this application does not limit this aspect.

[0118] It is understood that, for ease of description, this application refers to the information used to indicate the DMRS sequence and the PBCH load information as indication information, which can be used to indicate the candidate index of SS / PBCH blocks in the SS / PBCH block burst set of the terminal device.

[0119] As can be seen above, the indication information can only indicate a maximum of 64 candidate indices, and cannot indicate more than that. At higher frequency bands, the number of SS / PBCH blocks in the SS / PBCH block burst set may be greater. In this case, indicating 64 candidate indices is insufficient, and network devices need more space to send SS / PBCH blocks in the SS / PBCH block burst set; simultaneously, this indication information cannot indicate more candidate indices for the terminal device.

[0120] Therefore, this application provides a method for transmitting SS / PBCH blocks, which can indicate more candidate indices through indication information, and the network device is not limited to 64 candidate indices, and can send a greater number of SS / PBCH blocks.

[0121] See Figure 4 , Figure 4 This is a flowchart illustrating a method for transmitting SS / PBCH blocks provided in this application. This method can be applied to... Figure 1 The communication system shown, such as Figure 4 As shown, the method includes:

[0122] 401. The terminal device receives an SS / PBCH block.

[0123] Network devices can send SS / PBCH blocks in the form of SS / PBCH block burst sets, where one or more SS / PBCH blocks in the burst set include indication information. For a terminal device, it can blindly detect SS / PBCH blocks within the DRS window and receive one SS / PBCH block from the burst set. The terminal device can then demodulate this single SS / PBCH block to obtain the indication information shown below. Optionally, the terminal device can also blindly detect SS / PBCH blocks within the DRS window and receive multiple SS / PBCH blocks. The terminal device can then demodulate these multiple SS / PBCH blocks to obtain the indication information shown below. For example, if the terminal device demodulates a PSS on the first SS / PBCH block but cannot demodulate an SSS, it can demodulate another SS / PBCH block to obtain an SSS.

[0124] 402. The terminal device obtains indication information based on the SS / PBCH block; the indication information is used to indicate the candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, and the number of the candidate indices is greater than 64.

[0125] In this embodiment of the application, at least one SS / PBCH block can also be understood as one or more SS / PBCH blocks, and the one or more SS / PBCH blocks may include one SS / PBCH block from step 401. It is understood that the plurality of SS / PBCH blocks can be understood as two or more SS / PBCH blocks.

[0126] Optionally, the indication information includes information for indicating (or representing) the DMRS sequence and the PBCH load information, wherein the DMRS sequence is the 3-bit DMRS sequence in the PBCH described above, and the PBCH load information is the 4-bit information in the PBCH load information. Optionally, the indication information can be used not only to indicate 128 candidate indices, but also to indicate more candidate indices.

[0127] For example, this indication information can also be used to indicate 160 candidate indices. If the terminal device receives indication information including... At that time, the terminal device can know that there are 160 candidate indices. Alternatively, the indication information can also be used to indicate more than 160 candidate indices. For example, the indication information can also be used to indicate 180 candidate indices. Alternatively, the indication information can also be used to indicate more than 180 candidate indices. For example, the indication information can also be used to indicate 196 candidate indices. Alternatively, the indication information can also be used to indicate more than 196 candidate indices. For example, the indication information can also be used to indicate 200 candidate indices. Alternatively, the indication information can also be used to indicate more than 200 candidate indices. For example, the indication information can also be used to indicate 240 candidate indices. Alternatively, the indication information can also be used to indicate more than 240 candidate indices.

[0128] The specific number of candidate indices indicated by this instruction information can be configured by the network device; or it can be set by a protocol or standard, etc., which is not limited in this application embodiment. For example, the number of candidate indices can be configured by radio resource control (RRC) signaling.

[0129] In one possible implementation, Figure 4 The method shown may also include step 403.

[0130] 403. The terminal device receives the SS / PBCH block burst set.

[0131] In this embodiment, after receiving the SS / PBCH block burst set, the terminal device can determine whether to demodulate other SS / PBCH blocks based on the indication information. For example, through the indication information, the terminal device can determine whether the SS / PBCH blocks in different time slots are the same. Optionally, after receiving the SS / PBCH block burst set, the terminal device can demodulate other SS / PBCH blocks in the SS / PBCH block burst set. Alternatively, the terminal device may choose not to demodulate other SS / PBCH blocks in the SS / PBCH block burst set. This embodiment does not limit whether the terminal device demodulates other SS / PBCH blocks.

[0132] Optionally, the terminal device may receive some or all of the SS / PBCH block burst set. In other words, the terminal device may receive one or more SS / PBCH blocks from the SS / PBCH block burst set. It is understood that since the terminal device has already received one SS / PBCH block in step 401, it may receive other SS / PBCH blocks besides that one SS / PBCH block in step 403. Here, the one SS / PBCH block and the other SS / PBCH blocks are SS / PBCH blocks from the SS / PBCH block burst set.

[0133] In this embodiment, the 1-bit information in the PBCH payload information The specific location of the SS / PBCH block burst set does not need to be specified. Optionally, the terminal device can listen for the SS / PBCH block burst set every 5ms. Figure 2 As shown, the terminal device can receive the SS / PBCH block burst set within any 5ms interval. For example, the terminal device can receive or listen to the SS / PBCH block burst set within the first 5ms interval, and it can also receive or listen to the SS / PBCH block burst set within the second 5ms interval, etc. It is understood that the embodiments of this application do not limit how the terminal device specifically listens to or receives the SS / PBCH block burst set.

[0134] In this embodiment, the indication information can indicate not only the candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, but also more candidate indices, such as indicating more than or equal to 128 candidate indices. Simultaneously, the network device is not limited to 64 candidate indices (or 64 candidate positions, 64 transmission opportunities) and can send a greater number of SS / PBCH blocks; the terminal device can obtain the maximum range of SS / PBCH blocks that the network device can send through the indication information. For example, in higher frequency bands, the number of SS / PBCH blocks in the SS / PBCH block burst set can be greater than 64. In this case, the indication information can indicate the candidate indices of more than 64 SS / PBCH blocks in the SS / PBCH block burst set.

[0135] In this embodiment, the network device can transmit SS / PBCH block burst sets in either licensed or unlicensed frequency bands. In unlicensed frequency bands, the network device needs to perform a listen-before-talk (LBT) operation before transmitting the SS / PBCH block burst set. LBT means that before using a channel, the network device needs to obtain the interference situation in the frequency band where the channel is located. The channel can only be used if the interference energy value on the channel is less than or equal to a preset threshold. However, after the network device completes the LBT, it may be unable to transmit the specified SS / PBCH block at the designated location (such as the specified start symbol mentioned above). In other words, when the network device performs the LBT operation, one or more SS / PBCH blocks may fail to be transmitted in a timely manner. Figure 5a As shown, the LBT operation is performed before the network device sends the SS / PBCH block burst set, and it only successfully listens on symbol 8 of the first time slot. Therefore, the SS / PBCH blocks on symbols 4 to 7 cannot be successfully sent. In this case, the network device can... Figure 5a Send SS / PBCH blocks that were not sent in time on the remaining time slots.

[0136] However, the number of SS / PBCH blocks that cannot be sent in time due to LBT operations performed by network devices may be even greater, thus the remaining time slots may not be sufficient to send a larger number of SS / PBCH blocks. For example, when the SCS is 120kHz, 5ms corresponds to 40 time slots, and two SS / PBCH blocks are sent in each time slot, such as... Figure 5bAs shown. If the network device successfully performs LBT in the fourth time slot, then the SS / PBCH blocks (e.g., 6 SS / PBCH blocks) from the first to the third time slots will not be sent in time. Since there are only two remaining time slots, the network device can only send 4 SS / PBCH blocks, which is insufficient to send the aforementioned 6 SS / PBCH blocks. It is understood that in this embodiment, "SS / PBCH blocks not sent in time" can also be understood as "SS / PBCH blocks not successfully sent", and "one or more SS / PBCH blocks not sent in time" can also be understood as "one or more SS / PBCH blocks not successfully sent".

[0137] Therefore, embodiments of this application provide a method for transmitting SS / PBCH blocks, which can ensure that network devices have sufficient time slots to send one or more SS / PBCH blocks that have not been sent in time.

[0138] See Figure 6 , Figure 6 This is a flowchart illustrating a method for transmitting SS / PBCH blocks according to an embodiment of this application. This method can be applied to... Figure 1 The communication system shown, such as Figure 6 As shown, the method includes:

[0139] 601. The network device sends configuration information to the terminal device; correspondingly, the terminal device receives the configuration information; wherein, the configuration information includes the length of the burst set transmission window, and the length of the burst set transmission window is greater than 5ms.

[0140] In this embodiment of the application, the network device can have more remaining time slots to send one or more SS / PBCH blocks. Figure 4 As shown in the method, the terminal device needs to receive SS / PBCH blocks within the DRS window. Therefore, by extending the length of the DRS window, the terminal device can receive more SS / PBCH blocks within the DRS window.

[0141] When the length of the DRS window is extended, compared to Figure 5a or Figure 5b The location of the added remaining time slots in the method shown is not limited in this embodiment. Optionally, the added remaining time slots can be determined based on the corresponding subcarrier spacing and the start symbol expression of the SS / PBCH block. For example, the added remaining time slots can be located in the last few time slots of the DRS window. Alternatively, the added remaining time slots can be located in any time slot of the DRS window.

[0142] For example, such as Figure 2As shown, when the SCS is 15kHz and the DRS window length is greater than 5ms, the terminal device can receive a maximum of more than 10 SS / PBCH blocks within that DRS window. For example, as... Figure 3 As shown, when the SCS is 120kHz and the DRS window is longer than 5ms, the terminal device can receive a maximum of 64 SS / PBCH blocks within that DRS window. In other words, the network device can have more time slots to send SS / PBCH blocks. It is understood that the network device can send more SS / PBCH blocks in this embodiment, but the actual number of SS / PBCH blocks sent can be determined based on SIB1 information, etc., and this application does not limit this. It is also understood that this embodiment is applicable to wider subcarrier spacings, such as subcarrier spacings of 240kHz, 480kHz, or 960kHz.

[0143] In one possible implementation, the number of candidate indices for SS / PBCH blocks in the SS / PBCH block burst set can be 10, 20, or 64.

[0144] In one possible implementation, the number of candidate indices for SS / PBCH blocks in the SS / PBCH block burst set can also be greater than 64. As described in the background of this application, the 1-bit information in the PBCH payload... This can be used to indicate the specific location of the SS / PBCH block burst set. That is, it's 1 bit of information in the PBCH payload. This can be used to indicate which 5ms interval the SS / PBCH block burst set falls within. However, when the DRS window length is greater than 5ms, the terminal device does not need this 1-bit information. This allows us to determine the specific location of the SS / PBCH block burst set. In this case, the 1-bit information in the PBCH payload will be used. It can be used to indicate other information; or combined with other information in the PBCH load information to indicate candidate indexes, such as... Figure 4 The method shown.

[0145] Combination Figure 4 and Figure 6 The method shown eliminates the need for the terminal device to transmit 1 bit of information. This allows the specific location of the SS / PBCH block burst set to be determined, enabling the indication information to point to a larger number of candidate indices. Furthermore, even if the network device needs to transmit a larger number of SS / PBCH blocks, it can still ensure that the indication information points to more candidate indices and that the network device has sufficient remaining time slots to send one or more SS / PBCH blocks that have not been sent in time.

[0146] Optionally, the length of the burst transmission window can be greater than 0.5ms and less than 1ms. At higher frequencies, such as when the SCS is 960kHz or 1920kHz, or even a wider SCS, the length of the DRS window can be greater than 0.5ms and less than 1ms. For example, when the SCS is 960kHz, 1ms can include 64 time slots, which can transmit at least 64 SS / PBCH blocks. Optionally, when the SCS is 960kHz, 1ms can include 64 time slots, which can also transmit 128 or more SS / PBCH blocks, etc. That is, the network device can transmit the entire SS / PBCH block burst set within 1ms, so the terminal device can receive one or more SS / PBCH blocks within the length of the DRS window. In this case, the terminal device can receive or listen to the SS / PBCH block burst set within each 1ms, meaning the terminal device may not need 1 bit of information. In this case, combined Figure 4 The method shown refers to the 1-bit information in the PBCH payload. Candidate indices can be indicated by combining other information from the PBCH load information with information used to indicate DMRS sequences, such as... Figure 4 The method shown. That is, at higher frequencies, combined with Figure 4 The method shown allows network devices to send one or more SS / PBCH blocks that were not sent in time when the length of the DRS window is greater than 0.5ms and less than 1ms. It also allows them to indicate a greater number of candidate indices through indication information.

[0147] Optionally, the length of the burst set transmission window can be greater than 1ms and less than 2ms. For example, when the SCS is 480kHz, 1ms can include 32 time slots, which can transmit at least 32 SS / PBCH blocks. Optionally, these 32 time slots can also transmit 64 SS / PBCH blocks, etc. If the length of the DRS window is greater than 5ms, it may lead to resource waste, so the length of the DRS window can be appropriately reduced. In this case, it ensures that there are enough time slots to send SS / PBCH blocks that are not sent in time, while avoiding resource waste.

[0148] In this embodiment, the configuration information may be included in RRC signaling; alternatively, it may be included in downlink control information (DCI), etc., and this application does not limit this. Optionally, the configuration information may also be included in broadcast messages. As an example, when a terminal device initially accesses a cell, the network device can learn about the subcarrier spacing used by the terminal device, and the network device can determine the maximum number of SS / PBCH blocks and the length of the DRS window based on the subcarrier spacing.

[0149] 602. The network device sends one or more SS / PBCH block burst sets to the terminal device; correspondingly, the terminal device receives one or more SS / PBCH block burst sets within the DRS window.

[0150] In one possible implementation, the terminal device can receive a set of SS / PBCH block bursts within the DRS window. Methods for including a set of SS / PBCH block bursts within the DRS window include... Figure 7a As shown. It is understood that the explanation of the time slot (or start symbol, etc.) occupied by the SS / PBCH block burst set, the length of the DRS window, and the period of the SS / PBCH block burst set can be found in the above introduction, and will not be elaborated here. Figure 7a In this case, the period of the DRS window is the same as the period of the SS / PBCH block.

[0151] In another possible implementation, the terminal device can also receive multiple SS / PBCH block burst sets within the DRS window. The following will describe in detail the method of including multiple SS / PBCH block burst sets within the DRS window.

[0152] Method 1

[0153] At least two SS / PBCH block burst sets occupy different time slots, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in the same position.

[0154] The fact that the SS / PBCH blocks in at least two SS / PBCH block burst sets are in the same position can also be understood as the SS / PBCH blocks in the at least two SS / PBCH block burst sets having the same relative position in different time slots. Alternatively, it can be understood as the SS / PBCH blocks in the patterns of the at least two SS / PBCH block burst sets having the same relative position. Alternatively, it can be understood as the SS / PBCH blocks with the same relative position in different SS / PBCH block burst sets having the same offset relative to the starting position of their respective SS / PBCH block burst sets. It is understood that the description of position or relative position also applies to other embodiments of this application. Optionally, the at least two SS / PBCH block burst sets configured by the network device through the relevant parameters in SIB1 are the same. Optionally, the SS / PBCH blocks with the same relative position can also carry the same content.

[0155] like Figure 7b As shown, the DRS window can include two SS / PBCH block burst sets. Figure 7b The period of the SS / PBCH block burst set differs from the period of the DRS window. For example... Figure 7c As shown, these two SS / PBCH block burst sets occupy different time slots, and the pattern of the first SS / PBCH block burst set is the same as that of the second SS / PBCH block burst set. It can be understood that the same pattern here means the relative positions of the SS / PBCH blocks are the same. Furthermore, the content carried by the SS / PBCH blocks can also be the same.

[0156] For example, if the network device configures the cell-level SS / PBCH block burst set as 10110010... through relevant parameters in SIB1 (such as ssb-PositionsInBurst), then the two SS / PBCH block burst sets included in this DRS window are both 10111110...

[0157] For example, such as Figure 7c As shown, the symbol indices of the first slot occupied by the first SS / PBCH block burst set #1 in the DRS window are symbols 4 to 7 and 8 to 11, and the SIB1 information is 11… (omitted as 0). The symbol indices of the first slot of the second SS / PBCH block burst set #1 are also symbols 4 to 7 and 8 to 11, and the SIB1 information is 11… (omitted as 0).

[0158] Optionally, when the DRS window includes three SS / PBCH block burst sets, the corresponding time slot can represent the m-th time slot occupied by the first SS / PBCH block burst set, the m-th time slot occupied by the second SS / PBCH block burst set, and the m-th time slot occupied by the third SS / PBCH block burst set.

[0159] As can be seen from Method 1 described above, when the DRS window includes multiple SS / PBCH block burst sets, at least two of these SS / PBCH block burst sets must have the same starting symbol expression (which can also be understood as a pattern) and the same relevant parameters in SIB1 (such as ssb-PositionsInBurst). Optionally, SS / PBCH blocks with the same relative position can also carry the same content. It can be understood that "multiple SS / PBCH block burst sets" can also be called "one SS / PBCH block burst set," and "at least two SS / PBCH block burst sets" can also be understood as "at least two SS / PBCH block subsets."

[0160] Furthermore, since network devices need to perform LBT operations before sending SS / PBCH block burst sets, even if the SS / PBCH block burst sets configured by the network devices through the relevant parameters in SIB1 are the same, or even if the positions of the SS / PBCH blocks in at least two SS / PBCH block burst sets are the same, the actual SS / PBCH blocks sent by the network device still need to be determined based on the LBT results. For example, such as... Figure 7d As shown, for example, the SS / PBCH block burst set configured by the network device through relevant parameters in SIB1 is 010011101000000101011100100000010100111010110001001111001000001. However, SS / PBCH blocks that are not sent in time, such as... Figure 7d For SS / PBCH block burst set #11, which is 0100111010000001010111001000000101001110, the transmitted SS / PBCH blocks are as follows: Figure 7dThis is SS / PBCH block burst set #12. When sending the second SS / PBCH block burst set, the network device can send only SS / PBCH block burst set #11. That is, the first SS / PBCH block burst set sent by the network device is actually 0100111010000001010111001000000101001110, and the second SS / PBCH block burst set sent is actually 101100010011110010000001. Optionally, in practical applications, the network device can determine the LBT listening period according to the actual situation to ensure that the network device can send any SS / PBCH blocks that were not sent in time after the LBT is successful.

[0161] Understandable, with Figure 7d For example, SS / PBCH block burst set #11 can also be called a subset of SS / PBCH block burst set #1, and SS / PBCH block burst set #12 can also be called a subset of SS / PBCH block burst set #1.

[0162] In one possible implementation, after obtaining the actual transmission status of the SS / PBCH block burst set according to the relevant parameters in SIB1 configured by the network device, the terminal device can also perform the following operations within other time windows in the DRS window where SS / PBCH blocks have not been transmitted, based on the LBT result:

[0163] 1) Rate matching means that the terminal device neither receives nor transmits any information during the time window in which no SS / PBCH block is transmitted. For example, the terminal device may not receive the physical downlink control channel (PDCCH) and / or the physical downlink shared channel (PDSCH). As another example, the terminal device may also not transmit the physical uplink control channel (PUCCH) and / or the physical uplink shared channel (PUSCH).

[0164] 2) The terminal device can receive PDCCH and / or PDSCH; or, the terminal device can also send PUCCH and / or PUSCH.

[0165] Other time windows are: time windows within the DRS window other than the time window occupied by the first SS / PBCH block burst set sent after LBT success, such as... Figure 7eAs shown, the time window for untransmitted SS / PBCH blocks is the time window other than the time window occupied by the SS / PBCH block burst set. In other words, the time window for untransmitted SS / PBCH blocks should have been used to send one or more SS / PBCH blocks, but in reality, none of them were sent.

[0166] Optionally, the network device can also send information to the terminal device indicating the end of transmission. This information allows the terminal device to know the time during which no SS / PBCH blocks were sent within the DRS window. Figure 7d and Figure 7e For example, based on the information indicating the end of transmission, the terminal device can know that after the network device sent SS / PBCH block burst set #11, the network device will no longer send SS / PBCH block burst set #12. Therefore, the terminal device can perform the above operation within other time windows of the DRS window where no SS / PBCH blocks are transmitted.

[0167] Method 2

[0168] At least two of the multiple SS / PBCH block burst sets occupy different time slots, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in different positions.

[0169] The fact that the positions of the SS / PBCH blocks in at least two SS / PBCH block burst sets are different can also be understood as the relative positions of the SS / PBCH blocks in the at least two SS / PBCH block burst sets being the same in different time slots. Alternatively, it can be understood as the relative positions of the SS / PBCH blocks in the patterns of at least two SS / PBCH block burst sets being the same. Optionally, the at least two SS / PBCH block burst sets configured by the network device through the relevant parameters in SIB1 may also be different.

[0170] like Figure 8 As shown, the DRS window includes SS / PBCH block burst set #1 and SS / PBCH block burst set #2. The network device configures SS / PBCH block burst set #1 as 10110010…. using the relevant parameters in SIB1, and the network device configures SS / PBCH block burst set #2 as 10101110…. In other words, at least two of the multiple SS / PBCH block burst sets have different SS / PBCH blocks configured by the network device in the corresponding time slots. For a detailed explanation of the corresponding time slots, please refer to the explanation in Method 1 above; it will not be elaborated here.

[0171] As can be seen from Method 2 described above, when the DRS window includes multiple SS / PBCH block burst sets, at least two of these SS / PBCH block burst sets have different starting symbol expressions and / or different information in the relevant parameter configuration in SIB1. Optionally, two of the multiple SS / PBCH block burst sets have different starting symbol expressions; or, the relevant parameter configuration information in SIB1 is different. Optionally, at least three of the multiple SS / PBCH block burst sets have different starting symbol expressions and / or different SIB1 information. Optionally, each of the multiple SS / PBCH block burst sets has a different starting symbol and / or a different SIB1. It is understood that the relevant parameters in SIB1 can be referred to the description above, and will not be detailed here.

[0172] In one possible implementation, at least two of the multiple SS / PBCH block burst sets include different numbers of SS / PBCH blocks. For example, Figure 8 The number of SS / PBCH blocks included in SS / PBCH block burst set #1 is different from the number of SS / PBCH blocks included in SS / PBCH block burst set #2.

[0173] Optionally, the network device can also configure, through system information, whether the positions of SS / PBCH blocks in the aforementioned multiple SS / PBCH block burst sets are the same in different time slots. In other words, the network device can configure the relationship between the multiple SS / PBCH block burst sets included in the DRS window through system information. For example, through system information configuration, the positions of SS / PBCH blocks in the multiple SS / PBCH block burst sets are the same in different time slots. Or, through system configuration information, the positions of SS / PBCH blocks in the multiple SS / PBCH block burst sets are different in different time slots. This system information may include MIB or SIB. Optionally, the relationship between the multiple SS / PBCH block burst sets can be updated as the system information is updated.

[0174] Optionally, the second method described above uses multiple SS / PBCH block burst sets included within the same DRS window as an example. Whether the multiple SS / PBCH block burst sets included in different DRS windows are the same is not limited in the embodiments of this application. Figure 8 As shown, Figure 8The two DRS windows shown in the figure include the same SS / PBCH block burst sets. Optionally, the SS / PBCH block burst sets included in different DRS windows can also be different. Further, at least one SS / PBCH block burst set is different in different DRS windows. For example, the first DRS window includes SS / PBCH block burst set #1 and SS / PBCH block burst set #2, and the second DRS window may include SS / PBCH block burst set #1 and SS / PBCH block burst set #4. Alternatively, the first DRS window includes SS / PBCH block burst set #1 and SS / PBCH block burst set #2, and the second DRS window may include SS / PBCH block burst set #3 and SS / PBCH block burst set #4.

[0175] Optionally, in methods one and two, the period of the DRS window may differ from the period of the SS / PBCH block burst set. Optionally, the configuration information may also include the DRS window period. For example, the period of the DRS window may be indicated by the parameter "discoveryBurst-WindowPeriod" in the RRC signaling. Optionally, the period of the DRS window may differ from at least one SS / PBCH block burst set included within the DRS window. Optionally, the period of the DRS window may be the same as at least one SS / PBCH block burst set included within the DRS window. This application embodiment does not limit the relationship between the period of the DRS window and the period of the SS / PBCH block burst set.

[0176] Optionally, for method one, Figure 6 The method shown is the same as Figure 4 The methods shown combine to ensure that the network device sends the same set of SS / PBCH block bursts at different time intervals, i.e., at different time intervals (e.g. Figure 7b Within the time it takes for the network device to transmit the first SS / PBCH block burst set #1 and the time it takes for the network device to transmit the second SS / PBCH block burst set #1, the relative positions of the SS / PBCH blocks in the pattern of the SS / PBCH block burst sets are the same. Therefore, the network device only needs one indication message to indicate the candidate index of the SS / PBCH block in the SS / PBCH block burst set. Correspondingly, since the DRS window includes multiple identical SS / PBCH block burst sets, the terminal device can obtain the candidate index of the SS / PBCH block in the SS / PBCH block burst set by receiving one indication message.

[0177] For method two, Figure 6 The method shown is the same as Figure 4The method set shown indicates that the set of SS / PBCH block bursts sent by the network device varies at different time intervals, i.e., at different time intervals (e.g. Figure 8 Within the timeframes during which the network device transmits the first SS / PBCH block burst set #1 and the second SS / PBCH block burst set #2, the relative positions of the SS / PBCH blocks in the pattern of the SS / PBCH block burst sets differ. Alternatively, the number of SS / PBCH blocks in the pattern of the SS / PBCH block burst sets differs within different timeframes. Therefore, the network device can indicate the candidate indices of SS / PBCH blocks in the SS / PBCH block burst sets through multiple indication messages. Correspondingly, since the DRS window includes multiple different SS / PBCH block burst sets, the terminal device can receive multiple indication messages, thereby obtaining candidate indices of SS / PBCH blocks in multiple SS / PBCH block burst sets. Optionally, the number of these multiple candidate indices can be the same as the number of SS / PBCH block burst sets included in the DRS window.

[0178] In one possible implementation, Figure 6 The method shown may also include:

[0179] The network device sends first information to the terminal device, and the terminal device receives the first information accordingly; the first information is used to indicate the interval (N) between two adjacent SS / PBCH block burst sets in multiple SS / PBCH block burst sets within the DRS window. gap The interval can be in units of time slots or symbols, etc., and this application embodiment does not limit this. The first indication information can be included in RRC signaling, or in the master information block (MIB) or SIB, etc., and this application embodiment does not limit this.

[0180] For example, when two SS / PBCH block burst sets exist within the same DRS window, the network device indicates the interval between the two SS / PBCH block burst sets to the terminal device through the first information, enabling the terminal device to know the specific location of the second SS / PBCH block burst set. If the interval N... gap In time slots and N gap When the value is 10, the terminal device can know that the starting symbolic expression of the second SS / PBCH block burst set is: 140(10×14)+{0,4,14,20}+28n (n=0,1,...,15). Optionally, when there are more (e.g., three, four, etc.) SS / PBCH block burst sets within the same DRS window, the interval between two adjacent SS / PBCH block burst sets can be the same or different.

[0181] This first information allows the terminal device to know the specific location of other SS / PBCH block burst sets (SS / PBCH block burst sets other than the first SS / PBCH block burst set) within the DRS window.

[0182] In one possible implementation, Figure 6 The method shown may also include:

[0183] The network device sends a second message to the terminal device, which receives the second message. The second message is used to indicate whether the terminal device is listening to other SS / PBCH block burst sets within the DRS window. The other SS / PBCH block burst sets are the SS / PBCH block burst sets within the DRS window other than the first SS / PBCH block burst set.

[0184] For example, this second information can be in the form of a bitmap to indicate whether the terminal device needs to monitor multiple SS / PBCH block burst sets within the DRS window. Specifically, the length of the bitmap (the number of bits used) corresponds to the number of SS / PBCH block burst sets within the DRS window. For example, if the DRS window includes three SS / PBCH block burst sets, the second indication information can be 110. Here, "1" represents the SS / PBCH block burst set that needs to be monitored, and "0" represents the SS / PBCH block burst set that does not need to be monitored. Therefore, this second indication information can be used to indicate that the first and second SS / PBCH block burst sets within the DRS window need to be monitored, and the third SS / PBCH block burst set within the DRS window does not need to be monitored.

[0185] For example, the second information can also indicate, in 1-bit form, whether the terminal device needs to listen to other SS / PBCH block burst sets within the DRS window. For instance, when the second information is "1", it indicates that the terminal device needs to listen to other SS / PBCH block burst sets within the DRS window, and when the second information is "0", it indicates that the terminal device does not need to listen to other SS / PBCH block burst sets within the DRS window.

[0186] Optionally, the aforementioned second information may be included in RRC signaling or in the MIB, etc., and this application embodiment does not limit this. Optionally, the aforementioned first information and the aforementioned second information may be included in the same RRC signaling or the same MIB, etc., and this application embodiment does not limit the specific relationship between the first information and the second information.

[0187] In this embodiment, the terminal device does not need to use 1-bit information. This allows us to determine the specific location of the SS / PBCH block burst set, enabling the indication information to point to a larger number of candidate indices. Furthermore, even if the network device needs to transmit a larger number of SS / PBCH blocks, it can still ensure that the indication information points to more candidate indices and that the network device has sufficient remaining time slots to send one or more SS / PBCH blocks that have not been sent in time.

[0188] As described above, when the SCS is 240 kHz, the expression for the starting symbol of the SS / PBCH block can be {8,12,16,20,32,36,40,44}+56n; n = 0,1,2,3,4,5,6,7,8. It can be seen that when the starting symbol of the SS / PBCH block is {12,40}+56n, the SS / PBCH block spans two time slots. For example, when n = 0, the starting symbol of the SS / PBCH block can be symbol 12 or symbol 40; when the starting symbol is symbol 12, the symbol index of the SS / PBCH is symbol 12 to symbol 15; when the starting symbol is symbol 40, the symbol index of the SS / PBCH is symbol 40 to symbol 43. Since a time slot includes 14 symbols, symbols 12, 13 and 14, 15 are not in the same time slot; and symbols 40, 41 and 42, 43 are also not in the same time slot.

[0189] Generally, when a network device transmits an SS / PBCH block, it also needs to consider the PDSCH that has a quasi-co-location (QCL) relationship with that SS / PBCH block. For example, the beam used by the network device to transmit the SS / PBCH block is the same as the beam used to transmit the PDSCH. However, when an SS / PBCH block spans two time slots, the terminal device cannot obtain the SS / PBCH block associated with the DMRS or other downlink reference singular (DLRS) in the PDSCH. For example, these other DLRS, such as the channel state information reference singular (CSI-RS), can be used to obtain CSI, beam management (BM), or phase tracking. In view of this, for the case of an SCS of 240 kHz, this application also proposes a pattern for the burst set of SS / PBCH blocks.

[0190] Furthermore, for wider subcarrier spacing, such as SCS of 480kHz, 960kHz, and 1920kHz, this application also proposes a pattern for SS / PBCH block burst sets. Meanwhile, for the case of SCS of 120kHz, the network device may not have enough remaining time slots to transmit one or more SS / PBCH blocks that were not transmitted in time. Therefore, for the case of SCS of 120kHz, this application also proposes a pattern for SS / PBCH block burst sets.

[0191] The following will give the location distribution of SS / PBCH blocks when the subcarrier spacing is 120KHz, 240KHz, 480KHz, 960KHz and 1920KHz respectively.

[0192] 1. Subcarrier spacing is 120kHz

[0193] C1: Cycles in units of 2 time slots.

[0194] Each time slot includes 2 SS / PBCH blocks, therefore every 2 time slots can include 4 SS / PBCH blocks. Thus, the start symbol of the SS / PBCH block satisfies the following condition:

[0195] In every two time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0196] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3,5,7,9}.

[0197] Optionally, the length of the DRS window can be equal to 5ms. For example, the starting symbol expression of the SS / PBCH block can be {0,4,14,20}+28n (n=0,1,...,15).

[0198] Optionally, this method can be combined with... Figure 6 The method shown, for example, when the length of the DRS window is 10ms, the number of time slots that can be included within 10ms is 8 × 10 = 80. In this case, the starting symbolic expression of the SS / PBCH block shown above is {0,4,14,20} + 28n, where n can be equal to 0,1,…,39. Further, cycling in units of 2 time slots, n has 40 values, and each time slot includes 2 SS / PBCH blocks, so the number of candidate indices indicated by the indication information can be 40 × 2 × 2 = 160.

[0199] like Figure 9a As shown, Figure 9aThe example shown is the starting symbolic expression of the SS / PBCH block as {4,8,16,20}+28n, where n can be equal to 0,1,…,15. Figure 9a In this context, the symbol spacing between two adjacent SS / PBCH blocks can be 3 and / or 7. (Combined) Figure 9a and Figure 4 The method shown allows n to take on more values. Combined with... Figure 9a and Figure 6 The method shown can be such that the length of the DRS window is greater than 5ms. In this case, the number of remaining time slots is increased, so that the network device can perform LBT operation. Even if there are a large number of SS / PBCH blocks that are not sent in time, the remaining time slots can still meet the needs of the network device.

[0200] C2: Cycles in units of 1 time slot

[0201] Each time slot includes two SS / PBCH blocks, therefore each time slot can contain two SS / PBCH blocks. The start symbol of the SS / PBCH block thus satisfies the following condition:

[0202] The starting symbol index of the SS / PBCH block in each time slot is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0203] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3,5,7,9}.

[0204] Optionally, when the length of the DRS window is 5ms, for example, the starting symbol expression of the SS / PBCH block can be {0,4}+14n (n=0,1,...,31).

[0205] Optionally, when the DRS window length is 10ms, for example, the starting symbol expression of the above SS / PBCH block can be {0,4}+14n, where n can be equal to 0,1,…,79. Furthermore, the number of candidate indices indicated by the indication information can be 160.

[0206] It is understood that C1 and C2 shown above both illustrate two SS / PBCH blocks in one time slot. However, in another possible implementation, three SS / PBCH blocks may be included in one time slot. In this case, this application also shows another location distribution of the SS / PBCH blocks.

[0207] C1: Cycles in units of 2 time slots.

[0208] Each time slot includes 3 SS / PBCH blocks, so every 2 time slots can include 6 SS / PBCH blocks. Therefore, the start symbol of the SS / PBCH block satisfies the following condition:

[0209] The starting symbol index of the SS / PBCH block in every two time slots is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0210] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3, 5, 7}.

[0211] Since there are three SS / PBCH blocks in each time slot, and the maximum number of SS / PBCH blocks that can be transmitted is 64 when the subcarrier spacing is 120KHz, the number of time slots that an SS / PBCH block can occupy can be less than or equal to 11.

[0212] Considering the different time-domain positions of different subcarrier intervals, n can be other than 4 or 9 to ensure alignment at the time slot and / or symbol level. For example, n can be 0, 1, 2, 3, 5, 6, 7, 8, 10, or 11. Optionally, when n = 12, the starting symbol of an SS / PBCH block can be located on an even-numbered symbol with a symbol index less than 11 in time slots 21 and 22. In other words, when n = 12, the 61st to 64th SS / PBCH blocks can be located on even-numbered symbols with a symbol index less than 11 in time slots 21 and / or 22. In this case, the candidate index of the SS / PBCH block in the SS / PBCH block burst set is 64.

[0213] Combination Figure 4 In the method shown, when the number of candidate indices is greater than 64, n can be equal to 12, 13, etc. It is understood that the values ​​of n shown above are merely examples. In specific implementations, the value of n can be determined based on the number of candidate indices; or, the value of n can be defined by relevant standards or protocols; or, the value of n can be configured by network devices, etc. This application embodiment does not limit these possibilities. It is understood that the above description of n also applies to other parts of the embodiments of this application.

[0214] Optionally, when the length of the DRS window is 5ms, for example, the starting symbol of the SS / PBCH block is expressed as {2,6,10,16,20,24}+28n (n=0,1,2,3,5,6,7,8,10,11).

[0215] Optionally, when the length of the DRS window is 10ms, n in the above expression can be equal to 0, 1, ..., 39, etc. Furthermore, the number of candidate indices indicated by the indication information can be any one of 128, 160, 196, or 240.

[0216] In another possible implementation, the symbol spacing between the two adjacent SS / PBCH blocks shown above is any value of {3, 5}.

[0217] In this case, n can be equal to 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. When n = 11, the starting symbol of the SS / PBCH block can be located on an even symbol in slot 23 with a symbol index less than 11. In other words, when n = 11, the 64th SS / PBCH block can be located on an even symbol in slot 23 with a symbol index less than 11. In this case, the candidate index of the SS / PBCH block in the SS / PBCH block burst set is 64.

[0218] Combination Figure 4 The method shown allows n to be equal to 11 or 12 when the number of candidate indices is greater than 64.

[0219] Optionally, when the length of the DRS window is 5ms, for example, the start symbol of the SS / PBCH block is expressed as {2,6,10,16,20,24}+28n (n=0,1,2,3,4,5,6,7,8,9,10). When n=11, the start symbol of the SS / PBCH block can be 2.

[0220] Optionally, when the length of the DRS window is 10ms, n in the above expression can be equal to 0, 1, ..., 39, etc. Furthermore, the number of candidate indices indicated by the indication information can be any one of 128, 160, 196, or 240.

[0221] like Figure 9b As shown, Figure 9b The example shown is the starting symbolic expression for the SS / PBCH block as {2,6,10,16,20,24}+28n, where n = 0,1,2,3,5,6,7,8,10,11. When n = 12, the starting symbolic expression for the SS / PBCH block is {2,6,10,16}.

[0222] like Figure 9c As shown, Figure 9c The example shown is the starting symbolic expression of the SS / PBCH block as {2,6,10,16,20,24}+28n, where n = 0,1,2,3,4,5,6,7,8,9,10. When n = 11, the starting symbolic expression of the SS / PBCH block is {2,6,10,16}.

[0223] Understandable Figures 9a to 9cThe examples shown use symbol indices 0, 1, 2, 3 to 13. However, in some embodiments, the symbol index may also start from 1, such as symbol indices 1, 2, to 14. In this case, the starting symbol expression shown in the embodiments of this application may vary depending on the symbol index.

[0224] C2: Cycles in units of 1 time slot

[0225] Each time slot includes 3 SS / PBCH blocks, therefore each time slot can include 3 SS / PBCH blocks. The start symbol of the SS / PBCH block thus satisfies the following condition:

[0226] The starting symbol index of the SS / PBCH block in each time slot is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0227] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3, 5, 7}.

[0228] In this case, n can be any value from 0 to 24, and n is not equal to 8, 9, 18, or 19. When n = 25, the start symbol of the SS / PBCH block can be 2. In this case, the candidate index of the SS / PBCH block in the SS / PBCH block burst set is 64.

[0229] Optionally, when the length of the DRS window is 5ms, for example, the starting symbol of the SS / PBCH block is expressed as {2,6,10}+14n (n=0,1,2,3,4,5,6,7,10,11,12,13,14,15,16,17,20,21,22,23,24). When n=25, the starting symbol of the SS / PBCH block can be 2.

[0230] Optionally, when the length of the DRS window is 10ms, n in the above expression can be equal to 0, 1, ..., 79. Furthermore, the number of candidate indices that the indication information can indicate can be any one of 128, 160, or 196.

[0231] In another possible implementation, the symbol spacing between the two adjacent SS / PBCH blocks shown above is any value of {3, 5}.

[0232] In this case, n can be any value from 0 to 21. When n = 11, the starting symbol of the SS / PBCH block can be located on an even symbol with a symbol index less than 11 in the current time slot.

[0233] Optionally, when the DRS window length is 5ms, for example, the starting symbol of the SS / PBCH block is expressed as {2,6,10}+14n (n=0,1,2,3,……,21). When n=22, the starting symbol of the SS / PBCH block can be 2. In this case, the candidate index of the SS / PBCH block in the SS / PBCH block burst set is 64.

[0234] Optionally, when the length of the DRS window is 10ms, n in the above expression can be equal to 0, 1, ..., 79. Furthermore, the number of candidate indices indicated by the indication information can be any one of 128, 160, 196, or 240.

[0235] Understandably, SCS is 120×2 u The expression for the SS / PBCH block at kHz can be referenced for the case where SCS is 120kHz, where u = 1, 2, 3, 4, 5..., that is, u is an integer greater than or equal to 1.

[0236] 2. Subcarrier spacing is 240kHz

[0237] C1: Cycles in units of 4 time slots.

[0238] Each time slot includes 2 SS / PBCH blocks, so every 4 time slots can include 8 SS / PBCH blocks. Therefore, the start symbol of each SS / PBCH block satisfies the following condition:

[0239] In every four time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0240] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3,5,7,9}.

[0241] For example, the starting symbol expression for an SS / PBCH block can be {0,4,14,20,30,36,44,50}+56n (n=0,1,2,3,5,6,7,8).

[0242] C2: Cycles in units of 2 time slots.

[0243] Each time slot includes 2 SS / PBCH blocks, therefore every 2 time slots can include 4 SS / PBCH blocks. Thus, the start symbol of the SS / PBCH block satisfies the following condition:

[0244] In every two time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0245] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3,5,7,9}.

[0246] For example, the starting symbol expression for an SS / PBCH block can be {0,4,14,20}+28n (n=0,1,2,3,5,6,7,10,11,12,13,14,15,16,17).

[0247] C3: Cycles in units of 1 time slot

[0248] Each time slot includes two SS / PBCH blocks, therefore each time slot can contain two SS / PBCH blocks. The start symbol of the SS / PBCH block thus satisfies the following condition:

[0249] The starting symbol index of the SS / PBCH block in each time slot is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0250] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3,5,7,9}.

[0251] For example, the starting symbol expression for an SS / PBCH block can be {0,4}+14n (n = 0,1,2,3,4,5,6,7,10,11,12,13,14,15,16,21 to 34).

[0252] It is understood that C1 and C2 shown above both illustrate two SS / PBCH blocks in one time slot. However, in another possible implementation, three SS / PBCH blocks may be included in one time slot. In this case, this application also shows another location distribution of the SS / PBCH blocks.

[0253] C1: Cycles in units of 4 time slots.

[0254] Each time slot includes 3 SS / PBCH blocks, so every 4 time slots can include 12 SS / PBCH blocks. Therefore, the start symbol of each SS / PBCH block satisfies the following condition:

[0255] In every four time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0256] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3, 5, 7}.

[0257] For example, the starting symbol expression for an SS / PBCH block can be {2,6,10,16,20,24,30,34,38,42,46,50}+56n (n=0,1,2,3,4).

[0258] C2: Cycles in units of 2 time slots.

[0259] Each time slot includes 3 SS / PBCH blocks, so every 2 time slots can include 6 SS / PBCH blocks. Therefore, the start symbol of the SS / PBCH block satisfies the following condition:

[0260] In every two time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0261] The interval between two adjacent SS / PBCH blocks on the symbol is any one or more of {3,5}.

[0262] For example, the start symbol expression for an SS / PBCH block can be {2,6,10,16,20,24}+28n (n=0,1,...,9). When n=10, the start symbols for the 61st to 64th SS / PBCH blocks can be located on even-numbered symbols in slots 21 and 22 with start symbol indices less than 11. In this case, the candidate index for the SS / PBCH block in the SS / PBCH block burst set is 64.

[0263] C3: Cycles in units of 1 time slot

[0264] Each time slot includes 3 SS / PBCH blocks, therefore each time slot can contain 3 SS / PBCH blocks. The start symbol of the SS / PBCH block thus satisfies the following condition:

[0265] The starting symbol index of the SS / PBCH block in each time slot is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0266] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {3, 5, 7}.

[0267] For example, the start symbol expression for an SS / PBCH block can be {0,4,10}+14n (n = 0,1,2,3,4,5 to 20). When n = 21, the start symbol of the 64th SS / PBCH block can be located on an even symbol in slot 21 with a start symbol index less than 11. In this case, the candidate index of the SS / PBCH block in the SS / PBCH block burst set is 64.

[0268] It is understood that when the subcarrier spacing is 240kHz, the embodiments of this application do not limit the length of the DRS window. For example, the length of the DRS window can be equal to 5ms, etc.

[0269] 3. Subcarrier spacing is 480kHz

[0270] C1: Cycles in units of 8 time slots.

[0271] Each time slot includes 2 SS / PBCH blocks, so every 8 time slots can include 16 SS / PBCH blocks. Therefore, the start symbol of each SS / PBCH block satisfies the following condition:

[0272] In every 8 time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0273] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {5,7,9}.

[0274] C2: Cycles in units of 4 time slots.

[0275] Each time slot includes 2 SS / PBCH blocks, so every 4 time slots can include 8 SS / PBCH blocks. Therefore, the start symbol of each SS / PBCH block satisfies the following condition:

[0276] In every four time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0277] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {5,7,9}.

[0278] C3: Cycles in units of 2 time slots.

[0279] Each time slot includes 2 SS / PBCH blocks, therefore every 2 time slots can include 4 SS / PBCH blocks. Thus, the start symbol of the SS / PBCH block satisfies the following condition:

[0280] In every two time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0281] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {5,7,9}.

[0282] C4: Cycles in units of 1 time slot

[0283] Each time slot includes two SS / PBCH blocks, therefore each time slot can contain two SS / PBCH blocks. The start symbol of the SS / PBCH block thus satisfies the following condition:

[0284] The starting symbol index of the SS / PBCH block in each time slot is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0285] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {5,7,9}.

[0286] 4. Subcarrier spacing (SCS) is 960 kHz.

[0287] C1: Cycles in units of 16 time slots.

[0288] Each time slot includes 2 SS / PBCH blocks, so every 16 time slots can include 32 SS / PBCH blocks. Therefore, the start symbol of each SS / PBCH block satisfies the following condition:

[0289] In every 16 time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0290] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {5,7,9}.

[0291] C2-C5 can be referenced from C1-C4 when the subcarrier spacing is 480KHz, and will not be described in detail here.

[0292] 5. Subcarrier spacing is 1920kHz

[0293] C1: Cycles through 32 time slots.

[0294] Each time slot includes 2 SS / PBCH blocks, so every 32 time slots can contain 64 SS / PBCH blocks. Therefore, the start symbol of each SS / PBCH block satisfies the following condition:

[0295] In every 64 time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0296] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {5,7,9}.

[0297] C2: Cycles in units of 16 time slots

[0298] Each time slot includes 2 SS / PBCH blocks, so every 16 time slots can include 32 SS / PBCH blocks. Therefore, the start symbol of each SS / PBCH block satisfies the following condition:

[0299] In every 16 time slots, the starting symbol index of the SS / PBCH block is less than 11, and the SS / PBCH block is located on a symbol with an even symbol index;

[0300] The symbol spacing between two adjacent SS / PBCH blocks is any one or more of {5,7,9}.

[0301] C3-C6 can be referenced from C1-C4 when the subcarrier spacing is 480KHz, and will not be described in detail here.

[0302] It is understandable that when the SCS is 240KHz, 480KHz, 960KHz or 1920KHz, the description of n can be found in the explanation of n when the SCS is 120KHz, and will not be elaborated here.

[0303] This application provides a diagram of SS / PBCH block burst sets under different subcarrier spacings, which enables terminal devices to better obtain the specific location of SS / PBCH blocks.

[0304] Generally, the relationship between the SS / PBCH block and the PDSCH of the QCL of that SS / PBCH block can be as follows: Figure 10a As shown in Table 1, an SS / PBCH block occupies 4 symbols, and the PDSCH occupies 2 symbols. The SS / PBCH block and the PDSCH are frequency-division multiplexed. Specifically, the time-domain resource allocation of the PDSCH is shown in Table 1.

[0305] Here, S can indicate which symbol in the four symbols occupied by the SS / PBCH block the PDSCH will begin transmission on. For example, S=2 means that the PDSCH will begin transmission on the symbol with index 2 in the four symbols occupied by the SS / PBCH block.

[0306] Here, L can represent the symbol length occupied by the PDSCH. For example, L = 2 means that the PDSCH occupies a symbol length of 2, that is, the PDSCH occupies 2 symbols.

[0307] Table 1

[0308]

[0309] In other embodiments of this application, the relationship between the SS / PBCH block and the PDSCH can also satisfy the following conditions:

[0310] PDSCH occupies a symbol length of 1 or 3; and / or,

[0311] The starting symbol of PDSCH is the second or fourth of the four symbols occupied by the SS / PBCH block.

[0312] For example, if T SS / PBCH The starting symbol position of the SS / PBCH block associated with the PDSCH can be T. SS / PBCH +1 to T SS / PBCH Any value from +3. Optionally, when the start symbol position T of PDSCH... SS / PBCH When +1 is applied, the symbol length occupied by this PDSCH is 3, such as... Figure 10b As shown. When the starting symbol position T of PDSCH... SS / PBCH When +3, the symbol length occupied by this PDSCH is 1, such as Figure 10c As shown.

[0313] For example, the time-domain resource allocation of this PDSCH is shown in Table 2.

[0314] Table 2

[0315]

[0316] It is understood that the format of the PDSCH is not limited in the embodiments of this application. For example, the PDSCH can support Type A format and Type B format, etc.

[0317] Optionally, this method can be combined with... Figure 6 The methods shown, when combined, ensure that any SS / PBCH block in the SS / PBCH block burst set and the Physical Downlink Shared Channel (PDSCH) associated with that SS / PBCH block satisfy the following condition:

[0318] PDSCH occupies a symbol length of 1 or 3; and / or,

[0319] The starting symbol of PDSCH is either the second or fourth symbol out of the four symbols occupied by any SS / PBCH block.

[0320] In this embodiment, in high-frequency bands, by using appropriate values ​​of S and L, the terminal device can accurately obtain the channel positions of type 0-PDCCH and PDSCH corresponding to the remaining minimum system information (RMSI) of the SS / PBCH block, thereby enabling better demodulation of the information contained in the channel. For example, the information contained in the channel may include information related to initiating random access; or information such as the initial bandwidth part (BWP), etc., which are not limited in this application.

[0321] It is understood that each of the above embodiments has its own emphasis, and implementation methods not described in detail in one embodiment can be referred to in other embodiments, which will not be repeated here. Furthermore, the various embodiments described herein can be independent solutions or combinations based on internal logic, and all such solutions fall within the protection scope of this application. In other words, the various embodiments shown above can be combined with each other. For example, as shown above... Figure 4 and Figure 6 These methods can be combined. For example, Figure 4 and Figure 9a (or Figure 9b , Figure 9c The related methods shown (etc.) can be combined. For example, Figure 4 and Figure 10b (or Figure 10c The methods shown can also be combined. For example, Figure 4 , Figure 6 and Figure 9a (or Figure 9b , Figure 9c The related methods shown (etc.) can be combined. For example, Figure 4 , Figure 6 and Figure 10b (or Figure 10c The methods shown can also be combined. For example, Figure 4 , Figure 6 ,and Figure 9a (or Figure 9b , Figure 9c (etc.) and Figure 10b (or Figure 10c The methods shown can also be combined.

[0322] The following describes the communication device provided in the embodiments of this application.

[0323] Figure 11 This is a schematic diagram of a communication device provided in an embodiment of this application. This communication device can be used to perform operations executed by the terminal device in the above-described method embodiments. For example, this communication device can be used to perform... Figure 4 and / or Figure 6 The method shown. (As illustrated) Figure 11 As shown, the communication device includes a transceiver unit 1101 and a processing unit 1102. Among them,

[0324] Transceiver unit 1101 is used to receive one SS / PBCH block;

[0325] Processing unit 1102 is configured to obtain indication information based on the one SS / PBCH block; wherein the indication information is used to indicate the candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, the number of candidate indices is greater than 64, and the SS / PBCH block burst set is the set in which the aforementioned one SS / PBCH block is located.

[0326] In one possible implementation, the indication information includes information for indicating the demodulation reference signal DMRS sequence and information for the PBCH load; wherein the DMRS sequence occupies 3 bits and the PBCH load occupies 4 bits.

[0327] In one possible implementation, the number of candidate indices is greater than or equal to 128.

[0328] In one possible implementation, the transceiver unit 1101 is also used to receive SS / PBCH block burst sets.

[0329] In one possible implementation, the transceiver unit 1101 is also used to receive configuration information; wherein the configuration information includes the length of the burst set transmission window, and the length of the burst set transmission window is greater than 5ms, and the burst set transmission window is used by the terminal device to receive one or more SS / PBCH block burst sets.

[0330] Optionally, the processing unit 1102 can also control the transceiver unit 1101 to receive configuration information.

[0331] Optionally, the pattern of one or more SS / PBCH block burst sets can be as follows: Figures 7a to 7e As shown; or, as can be... Figure 8 As shown.

[0332] Optionally, the pattern of an SS / PBCH block burst set can be as follows: Figures 9a to 9c As shown.

[0333] Optionally, the pattern of one SS / PBCH block burst set from multiple SS / PBCH block burst sets can also be as follows: Figures 9a to 9c As shown.

[0334] In one possible implementation, at least two SS / PBCH block burst sets occupy different time slots, and the SS / PBCH blocks in these at least two SS / PBCH block burst sets are in the same position; or, at least two SS / PBCH sets occupy different time slots, and the SS / PBCH blocks in these at least two SS / PBCH block burst sets are in different positions; or, at least two SS / PBCH sets include different numbers of SS / PBCH blocks.

[0335] In one possible implementation, if at least two SS / PBCH block burst sets occupy different time slots in multiple SS / PBCH block burst sets, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in the same position, the SS / PBCH block burst set sent by the network device to the terminal device is determined by the network device based on the LBT (Listen Before Talk) result.

[0336] In one possible implementation, the configuration information also includes the period of the burst set transmission window, and the period of the burst set transmission window is different from the period of the SS / PBCH block burst set.

[0337] In one possible implementation, the temporal location occupied by an SS / PBCH block in the SS / PBCH block burst set satisfies the following condition:

[0338] The starting symbol of an SS / PBCH block in the SS / PBCH block burst set is any even-numbered symbol from the first to the eleventh symbol in a time slot configured by the network device; and / or, the starting symbol interval between two adjacent SS / PBCH blocks in the SS / PBCH block burst set is any one or more of 3, 5, 7 or 9.

[0339] In one possible implementation, an SS / PBCH block and the Physical Downlink Shared Channel (PDSCH) associated with an SS / PBCH block satisfy the following condition:

[0340] The symbol length occupied by PDSCH is 1 or 3; and / or, the starting symbol of PDSCH is the second or fourth symbol of the four symbols occupied by an SS / PBCH block.

[0341] Optionally, the relationship between the PDSCH and SS / PBCH blocks can be as follows: Figure 10b and Figure 10c As shown.

[0342] For example, the transceiver unit can be used to perform Figure 4 Steps 401 and 403. The transceiver unit can also be used to perform... Figure 6 Steps 601 and 602 in the process. The processing unit can be used to execute... Figure 4 Step 402 in the process.

[0343] It is understood that the methods performed by each unit shown above are merely examples, and the specific steps performed by each unit can be found in the methods described above.

[0344] It should be understood that when the above-mentioned communication device is a terminal device or a component in a terminal device that implements the above-mentioned functions, the processing unit 1102 may be one or more processors, the transceiver unit 1101 may be a transceiver, or the transceiver unit 1101 may also be a sending unit and a receiving unit. The sending unit may be a transmitter, and the receiving unit may be a receiver. The sending unit and the receiving unit are integrated into one device, such as a transceiver.

[0345] When the aforementioned communication device is a circuit system such as a chip, the processing unit 1102 can be one or more processors, and the transceiver unit 1101 can be an input / output interface, or a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiver unit 1101 can also be a transmitting unit and a receiving unit. The transmitting unit can be an output interface, and the receiving unit can be an input interface. The transmitting unit and the receiving unit are integrated into one unit, such as an input / output interface.

[0346] The communication device in this application embodiment can perform any function performed by the terminal device in the above method embodiment. The specific executable steps and / or functions can be referred to the detailed description in the above method embodiment. Here, only a brief overview is provided, and no further details are given.

[0347] Reuse Figure 11 , Figure 11 This is a schematic diagram of a communication device provided in an embodiment of this application. This communication device can be used to perform operations executed by a network device in the above-described method embodiments. For example, this communication device can be used to perform... Figure 4 and / or Figure 6 The method shown. (As illustrated) Figure 11 As shown, the communication device includes a transceiver unit 1101 and a processing unit 1102. Among them,

[0348] Transceiver unit 1101 is used to receive or transmit signals;

[0349] Processing unit 1102 is configured to perform the following via transceiver unit: sending an SS / PBCH block burst set to a terminal device, wherein one or more SS / PBCH blocks in the SS / PBCH block burst set include indication information, the indication information being used to indicate a candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, and the number of candidate indices being greater than 64.

[0350] In one possible implementation, the processing unit 1102 is further configured to perform the following via the transceiver unit: sending configuration information to the terminal device; wherein the configuration information includes the length of the burst set transmission window, and the length of the burst set transmission window is greater than 5ms, and the burst set transmission window is used by the terminal device to receive one or more SS / PBCH block burst sets.

[0351] It is understood that the description of the indication information and the burst set transmission window can be referred to the aforementioned embodiments, and will not be described in detail here.

[0352] It should be understood that when the above-mentioned communication device is a network device or a component in a network device that implements the above-mentioned functions, the processing unit 1102 may be one or more processors, the transceiver unit 1101 may be a transceiver, or the transceiver unit 1101 may also be a sending unit and a receiving unit. The sending unit may be a transmitter, and the receiving unit may be a receiver. The sending unit and the receiving unit are integrated into one device, such as a transceiver.

[0353] When the aforementioned communication device is a circuit system such as a chip, the processing unit 1102 can be one or more processors, and the transceiver unit 1101 can be an input / output interface, or a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiver unit 1101 can also be a transmitting unit and a receiving unit. The transmitting unit can be an output interface, and the receiving unit can be an input interface. The transmitting unit and the receiving unit are integrated into one unit, such as an input / output interface.

[0354] The communication device in this application embodiment can perform any function performed by the network device in the above method embodiment. The specific executable steps and / or functions can be referred to the detailed description in the above method embodiment. Only a brief overview is given here, and no further details will be provided.

[0355] In one possible implementation, the communication device can be the terminal device described in the various method embodiments above. In this case, the transceiver unit 1101 can be implemented using a transceiver, and the processing unit 1102 can be implemented using a processor. Figure 12 As shown, the communication device 120 includes one or more processors 1220 and transceivers 1210. The processors and transceivers can be used to perform the functions or operations performed by the aforementioned terminal device.

[0356] For example, a transceiver can be used to receive a single SS / PBCH block. Alternatively, it can be used to receive one or more SS / PBCH block bursts. Furthermore, it can also be used to receive configuration information.

[0357] For example, the processor can be used to obtain indication information based on one of the aforementioned SS / PBCH blocks.

[0358] In one possible implementation, the communication device can be a network device from the various method embodiments described above. In this case, the transceiver unit 1101 can be implemented using a transceiver, and the processing unit 1102 can be implemented using a processor. Multiplexing Figure 12 ,like Figure 12 As shown, the communication device 120 includes one or more processors 1220 and transceivers 1210. The processors and transceivers can be used to perform the functions or operations performed by the aforementioned network devices.

[0359] For example, the processor can send SS / PBCH block burst sets via the transceiver. As another example, the processor can send configuration information via the transceiver.

[0360] In the various implementations shown above, optionally, the pattern of one or more SS / PBCH block burst sets can be as follows: Figures 7a to 7e As shown; or, as can be... Figure 8 As shown.

[0361] Optionally, the pattern of an SS / PBCH block burst set can be as follows: Figures 9a to 9c As shown.

[0362] Optionally, the pattern of one SS / PBCH block burst set from multiple SS / PBCH block burst sets can also be as follows: Figures 9a to 9c As shown.

[0363] Optionally, the relationship between the PDSCH and SS / PBCH blocks can be as follows: Figure 10b and Figure 10c As shown.

[0364] exist Figure 12 In various implementations of the communication device shown, the transceiver may include a receiver and a transmitter, the receiver being used to perform receiving functions (or operations), and the transmitter being used to perform transmitting functions (or operations). The transceiver is also used to communicate with other devices / appliances via a transmission medium. The processor 1220 utilizes the transceiver 1210 to send and receive data and / or signaling, and is used to implement the methods described above. Figure 4 and Figure 6 The corresponding method described above.

[0365] Optionally, the communication device 120 may further include one or more memories 1230 for storing program instructions and / or data. The memory 1230 is coupled to the processor 1220. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 1220 may operate in conjunction with the memory 1230. The processor 1220 may execute program instructions stored in the memory 1230. Optionally, at least one of the above-mentioned memories may be included in the processor.

[0366] This application embodiment does not limit the specific connection medium between the transceiver 1210, processor 1220, and memory 1230. This application embodiment... Figure 12 The memory 1230, processor 1220, and transceiver 1210 are connected via a bus 1240. Figure 12 The connections between other components are shown in bold and are for illustrative purposes only, not as limiting information. The bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, Figure 12 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0367] In the embodiments of this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules within the processor.

[0368] Understandable, Figure 12 When the communication device shown is a terminal device, the terminal device may also have more than Figure 12 More components, for example, Figure 12 The terminal device shown may also include an antenna, etc., but this application embodiment does not limit this.

[0369] Understandable, Figure 12 When the communication device shown is a network device, the network device may also have more than Figure 12 This application does not limit the use of other components, etc., in the embodiments.

[0370] It is understood that the methods executed by the processor and transceiver shown above are merely examples. For the specific steps executed by the processor and transceiver, please refer to the methods described above.

[0371] In another possible implementation, the communication device described above can be a circuit system within a terminal device. In this case, the processing unit 1102 can be implemented using processing circuitry, and the transceiver unit 1101 can be implemented using interface circuitry. For example... Figure 13 As shown, the communication device may include a processing circuit 1302 and an interface circuit 1301. The processing circuit 1302 may be a chip, logic circuit, integrated circuit, processing circuit, or system on chip (SoC) chip, etc., and the interface circuit 1301 may be a communication interface, input / output interface, etc.

[0372] For example, an interface circuit can be used to acquire an SS / PBCH block. For example, an interface circuit can be used to acquire configuration information, etc. For yet another example, an interface circuit can also be used to acquire one or more SS / PBCH block burst sets.

[0373] For example, the processing circuit can be used to obtain indication information based on the aforementioned SS / PBCH block.

[0374] Optionally, the pattern of one or more SS / PBCH block burst sets can be as follows: Figures 7a to 7e As shown; or, as can be... Figure 8 As shown.

[0375] Optionally, the pattern of an SS / PBCH block burst set can be as follows: Figures 9a to 9c As shown.

[0376] Optionally, the pattern of one SS / PBCH block burst set from multiple SS / PBCH block burst sets can also be as follows: Figures 9a to 9c As shown.

[0377] Optionally, the relationship between the PDSCH and SS / PBCH blocks can be as follows: Figure 10b and Figure 10c As shown.

[0378] In the embodiments of this application, the processing circuit may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., which can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of this application.

[0379] It is understood that the methods performed by the interface circuit and processing circuit shown above are merely examples. For the specific steps performed by the interface circuit and processing circuit, please refer to the methods described above.

[0380] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, or it may be an electrical, mechanical, or other form of connection.

[0381] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of this application.

[0382] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0383] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0384] In addition, this application also provides a computer program for implementing the operations and / or processes performed by a terminal device in the method embodiments provided in this application.

[0385] This application also provides a computer-readable storage medium storing computer code that, when executed on a computer, causes the computer to perform operations and / or processes performed by a terminal device in the method embodiments provided in this application.

[0386] This application also provides a computer program product, which includes computer code or a computer program that, when run on a computer, enables the operations and / or processes performed by a terminal device in the method embodiments provided in this application to be implemented.

[0387] This application also provides a wireless communication system, which includes the network device and terminal device described in the embodiments of this application.

[0388] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0389] Based on the above Figure 4 The description, such as the indication information in step 402, includes information for indicating the DMRS series and PBCH load. Based on the above description, the PBCH load information also includes information from the PBCH load information.

[0390] The indication information in this application embodiment can be used to indicate 128 candidate indices; or, the indication information can be used to indicate 256 candidate indices; or, the indication information can be used to indicate 512 candidate indices; or, the indication information can be used to indicate 1024 candidate indices; or, the indication information can be used to indicate 2048 candidate indices. It is understood that the number of candidate indices indicated by the indication information shown in this application embodiment is only an example, and the number of candidate indices may have other values, which will not be detailed here. That is, the corresponding number of candidate indices can be indicated by the information used to indicate the DMRS sequence and the information of the PBCH payload.

[0391] The method for indicating candidate indices using the indication information is as follows:

[0392] Optionally, the indication information uses 7 bits to represent up to 128 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence described above in the PBCH, and the PBCH payload information is the 4-bit information in the PBCH payload information. or or or At this time, the information update cycle in SIB1 is 80ms, using PBCH load. Any 3 bits represent the lower (least significant bit, LSB) of the system frame number (SFN).

[0393] Optionally, this indication information uses 8 bits to represent up to 256 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence described above in the PBCH, and the PBCH payload information is the 5-bit information in the PBCH payload information. or or or At this time, the information update cycle in SIB1 is 80ms, using PBCH load. Any 3 bits represent the lower 3 bits of the SFN.

[0394] When the information update period in SIB1 is 80ms, the low-order bit (LSB) used to indicate (or represent) SFN is 3 bits located in the PBCH payload information, and the high-order bit (most significant bit, MSB) used to indicate SFN is 7 bits located in the MIB.

[0395] For example, a network device can define third indication information, whereby the bits representing SFN information in the MIB can include 6 bits of the high-order bit (MSB) plus the bits occupied by the third indication information. That is, the third indication information occupies 1 bit, represented by any 1 bit of the parameter pdcch-ConfigSIB1 in the MIB or a parameter with similar function. The parameter pdcch-ConfigSIB1 in the MIB can be used to indicate the configuration information of type 0-PDCCH that has a quasi-co-location (QCL) relationship with the SSB. Optionally, when the information update period in SIB1 is 40ms, the third indication information occupies 2 bits, such as using any 2 bits of the parameter pdcch-ConfigSIB1 in the MIB. Optionally, when the information update period in SIB1 is 20ms, the third indication information occupies 3 bits, represented by any 3 bits of the parameter pdcch-ConfigSIB1 in the MIB. Optionally, when the information update period in SIB1 is 10ms, this third indication information occupies 4 bits and is represented by any 4 bits in the parameter pdcch-ConfigSIB1 in the MIB.

[0396] For example, the network device may also define a fourth indication information, which indicates an indication k ssb The number of bits used. This k ssb The parameter indicates the spacing between subcarrier index #0 within the RB where the SSB resides and subcarrier index #0 in its overlapping CRB (Common RB). When the subcarrier spacing between the SSB and a Type 0-PDCCH carrying CORESET #0 with QCL relationship is {120kHz, 240kHz}, {240kHz, 480kHz}, or {480kHz, 960kHz}, this fourth indication information includes the 4-bit parameter ssb-SubcarrierOffset in the MIB and additional fifth indication information. This fifth indication information can be represented by any 1 bit in the parameter pdcch-ConfigSIB1 in the MIB, or using the PBCH payload. or or or The 1-bit information used is used for representation. Alternatively, when the subcarrier spacing between the SSB and the Type 0-PDCCH carrying CORESET#0 with QCL relationship is {120kHz, 480kHz} or {240kHz, 960kHz}, the fourth indication information includes the 4-bit parameter ssb-SubcarrierOffset in the MIB and additional fifth indication information, which can be represented by any 2 bits of the parameter pdcch-ConfigSIB1 in the MIB, or using the PBCH payload. or or or or or The 2 bits of information used can be represented by either any 1 bit from the parameter pdcch-ConfigSIB1 in the MIB or the PBCH payload. or or or The 1-bit information is used, for a total of 2 bits. Alternatively, when the subcarrier spacing between the SSB and the Type 0-PDCCH carrying CORESET#0 with QCL relationship is {120kHz, 960kHz}, the fourth indication information includes the 4-bit parameter ssb-SubcarrierOffset in the MIB and additional fifth indication information. This fifth indication information can be represented by any 3 bits of the parameter pdcch-ConfigSIB1 in the MIB, or by using the PBCH payload. or or or The 3 bits of information used can be represented by any 1 bit from the parameter pdcch-ConfigSIB1 in the MIB and the PBCH payload. or or or or or The 2 bits of information used are used, for a total of 3 bits, or any 2 bits from the pdcch-ConfigSIB1 parameter in the MIB and the PBCH payload can be used. or or or The 1 bit of information used is represented by a total of 3 bits.

[0397] Optionally, when the subcarrier spacing between the SSB and the Type 0-PDCCH carrying CORESET#0 with QCL relationship is {120kHz, 60kHz}, {480kHz, 240kHz}, or {960kHz, 480kHz}, the fourth indication information is any 3 bits of the 4-bit parameter ssb-SubcarrierOffset in the MIB, such as 3 MSB bits or 3 LSB bits in the parameter ssb-SubcarrierOffset. When the subcarrier spacing between the SSB and the Type 0-PDCCH carrying CORESET#0 with QCL relationship is {240kHz, 60kHz}, {480kHz, 120kHz}, or {960kHz, 240kHz}, the fourth indication information is any 2 bits of the 4-bit parameter ssb-SubcarrierOffset in the MIB, such as 2 MSB bits or 2 LSB bits in the parameter ssb-SubcarrierOffset. When the subcarrier spacing between the SSB and the Type 0-PDCCH carrying CORESET#0 with QCL relationship is {480kHz, 60kHz} or {960kHz, 120kHz}, the fourth indication information is any 1 bit of the 4-bit parameter ssb-SubcarrierOffset in the MIB, such as 1 MSB bit, 1 LSB bit, or the second-to-last LSB bit in the parameter ssb-SubcarrierOffset. When the subcarrier spacing between the SSB and the Type 0-PDCCH carrying CORESET#0 with QCL relationship is {960kHz, 60kHz}, the third indication information is any 1 bit of the 4-bit parameter ssb-SubcarrierOffset in the MIB, such as 1 MSB bit, 1 LSB bit, or the second-to-last LSB bit in the parameter ssb-SubcarrierOffset.

[0398] Optionally, the extra bits of the ssb-SubcarrierOffset indicator can be used to indicate other parameters, such as the system frame number, the TRP index, or to distinguish between MIB1 and MIB2.

[0399] MIB1 is carried in a PBCH channel operating on a licensed frequency band, and MIB2 is carried in a PBCH channel operating on a shared licensed frequency band. Alternatively, MIB1 is carried in a PBCH channel operating on a shared unlicensed frequency band, and MIB2 is carried in a PBCH channel operating on an unlicensed frequency band.

[0400] Optionally, this indication information uses 8 bits to represent up to 256 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence described above in the PBCH, and the PBCH payload information is the 5-bit information in the PBCH payload information. or or or or or At this time, the information update cycle in SIB1 is 40ms, using PBCH load. Any 2 bits represent the lower 2 bits of the SFN.

[0401] Optionally, this indication information uses 9 bits to represent up to 512 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence described above in the PBCH, and the PBCH payload information is the 6-bit information in the PBCH payload information. or or or or or At this point, the information update period in SIB1 can be 40ms. Using the PBCH load balancer... Any 2 bits represent the lower 2 bits of the SFN.

[0402] Optionally, this indication information uses 9 bits to represent up to 512 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence described above in the PBCH, and the PBCH payload information is the 6-bit information in the PBCH payload information. or or or At this time, the information update cycle in SIB1 is 20ms, using PBCH load. Any 1 bit represents the lower LSB of the SFN.

[0403] Optionally, this indication information uses 10 bits to represent up to 1024 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence in the PBCH described above, and the PBCH payload information is the 7-bit information in the PBCH payload information. or or or At this time, the information update cycle in SIB1 is 20ms, using PBCH load. Any 1 bit represents the lower 1 bit of the SFN (LSB of SFN).

[0404] Optionally, this indication information uses 10 bits to represent up to 1024 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence in the PBCH described above, and the PBCH payload information is the 7-bit information in the PBCH payload information. At this time, the information update cycle in SIB1 can be 10ms.

[0405] Optionally, this indication information uses 11 bits to represent up to 2048 candidate indices, all of which are located within a burst set window or half-frame. This includes information indicating (or representing) the DMRS sequence and PBCH payload information. The DMRS sequence is the 3-bit DMRS sequence described above in the PBCH, and the PBCH payload information is the 8-bit information in the PBCH payload information. At this time, the information update cycle in SIB1 can be 10ms.

[0406] This application has previously described the conditions that the start symbol of an SSB (such as the SS / PBCH block shown above) must meet when the subcarrier spacing is 480kHz or 960kHz. The following section will detail the index of the start symbol of this SSB. It is understood that the SS / PBCH block shown above can also be called a candidate SSB, and the start symbol can also be called the first symbol, etc. This application does not limit the specific names used in its embodiments. It is understood that the candidate SSB shown in this application refers to a candidate position for transmitting the SSB. It is understood that the specific value of n shown in this application can be determined by the length of the DRS window. Alternatively, the specific value of n shown in this application can be determined by the length of the DRS window and the uplink / downlink time slot allocation. That is, the specific value of n shown in this application needs to skip the value corresponding to the time slot used for uplink service transmission.

[0407] For example, when the subcarrier spacing of an SSB is 480 kHz or 960 kHz, for a licensed frequency band, the index of the first symbol of a candidate SSB (SS / PBCH block) can satisfy any of the following conditions:

[0408] {0,6}+14n,(n=0,1,2,…,31); {0,8}+14n,(n=0,1,2,…,31); {0,10}+14n,(n=0,1,2,…,31); {2,8}+14n,(n=0,1,2,…,31); {2,10}+14n,(n=0,1,2,…,31); {4,10}+14n,(n=0,1,2,…,31). It can be understood that the expressions shown here are presented cyclically in units of one time slot. That is, under any of the conditions shown above, each time slot in the above-shown time slots can include two candidate SSBs. For example, the index of the first symbol of a candidate SSB satisfies: {0, 6} + 14n, (n = 0, 1, 2, ..., 31). When n = 0, symbol 0 in the first time slot is the index of the first symbol of a candidate SSB, and symbol 6 in the first time slot can be the index of the first symbol of another candidate SSB. As another example, when n = 1, symbol 0 in the second time slot is the index of the first symbol of a candidate SSB, and symbol 6 in the second time slot is the index of the first symbol of another candidate SSB. It is understood that since this application cycles through time slots, the description of the index of the first symbol is also illustrated using an example of 14 symbols in one time slot. However, this application can also number the above indices in ascending order. For example, when n = 1, the index of the first symbol of a candidate SSB can also be 14, and the index of the first symbol of another candidate SSB can also be 20.

[0409] Alternatively, the index of the first symbol of a candidate SSB can satisfy any of the following conditions:

[0410] {0,6,14,20}+28n,(n=0,1,2,…,15);

[0411] {0,6,14,22}+28n,(n=0,1,2,…,15);

[0412] {0,6,14,24}+28n,(n=0,1,2,…,15);

[0413] {0,6,16,22}+28n,(n=0,1,2,…,15);

[0414] {0,6,16,24}+28n,(n=0,1,2,…,15);

[0415] {0,6,18,24}+28n,(n=0,1,2,…,15);

[0416] {0,8,14,20}+28n,(n=0,1,2,…,15);

[0417] {0,8,14,22}+28n,(n=0,1,2,…,15);

[0418] {0,8,14,24}+28n,(n=0,1,2,…,15);

[0419] {0,8,16,22}+28n,(n=0,1,2,…,15);

[0420] {0,8,16,24}+28n,(n=0,1,2,…,15);

[0421] {0,8,18,24}+28n,(n=0,1,2,…,15);

[0422] {0,10,14,20}+28n,(n=0,1,2,…,15);

[0423] {0,10,14,22}+28n,(n=0,1,2,…,15);

[0424] {0,10,14,24}+28n,(n=0,1,2,…,15);

[0425] {0,10,16,22}+28n,(n=0,1,2,…,15);

[0426] {0,10,16,24}+28n,(n=0,1,2,…,15);

[0427] {0,10,18,24}+28n,(n=0,1,2,…,15);

[0428] {2,8,14,20}+28n,(n=0,1,2,…,15);

[0429] {2,8,14,22}+28n,(n=0,1,2,…,15);

[0430] {2,8,14,24}+28n,(n=0,1,2,…,15);

[0431] {2,8,16,22}+28n,(n=0,1,2,…,15);

[0432] {2,8,16,24}+28n,(n=0,1,2,…,15);

[0433] {2,8,18,24}+28n,(n=0,1,2,…,15);

[0434] {2,10,14,20}+28n,(n=0,1,2,…,15);

[0435] {2,10,14,22}+28n,(n=0,1,2,…,15);

[0436] {2,10,14,24}+28n,(n=0,1,2,…,15);

[0437] {2,10,16,22}+28n,(n=0,1,2,…,15);

[0438] {2,10,16,24}+28n,(n=0,1,2,…,15);

[0439] {2,10,18,24}+28n,(n=0,1,2,…,15);

[0440] {4,10,14,20}+28n,(n=0,1,2,…,15);

[0441] {4,10,14,22}+28n,(n=0,1,2,…,15);

[0442] {4,10,14,24}+28n,(n=0,1,2,…,15);

[0443] {4,10,16,22}+28n,(n=0,1,2,…,15);

[0444] {4,10,16,24}+28n,(n=0,1,2,…,15);

[0445] {4,10,18,24}+28n, (n=0,1,2,…,15). It can be understood that the expressions shown here are presented cyclically in units of two time slots. That is, each pair of time slots can include four candidate SSBs. In this case, the symbol index can be from 0 to 27, representing the index of the first symbol of a candidate SSB in units of two time slots. For example, the index of the first symbol of a candidate SSB satisfies: {0,6,14,20}+28n, (n=0,1,2,…,15). When n=0, symbol 0 in each pair of time slots (which can also be understood as the first and second time slots) is the index of the first symbol of a candidate SSB, symbol 6 is the index of the first symbol of a candidate SSB, symbol 14 is the index of the first symbol of a candidate SSB, and symbol 20 is the index of the first symbol of a candidate SSB. For example, when n=1, symbol 0 in every two time slots (which can also be understood as the third and fourth time slots) is the index of the first symbol of a candidate SSB (if the symbols included in each time slot are arranged in ascending order, it can also be called index 28), symbol 6 is the index of the first symbol of a candidate SSB (which can also be called index 34), symbol 14 is the index of the first symbol of a candidate SSB (which can also be called index 42), and symbol 20 is the index of the first symbol of a candidate SSB (which can also be called index 48). It is understood that this explanation of the indices also applies below, and to avoid redundancy, it will not be elaborated further below.

[0446] Alternatively, the index of the first symbol of the candidate SSB satisfies any of the following conditions:

[0447] {a,b,c,d,e,f,g,h}+56n,(n=0,1,2,…,7)

[0448] Where a takes the value 0, 2 or 4, b takes the value 6, 8 or 10, c takes the value 14, 16 or 18, d takes the value 20, 22 or 24, e takes the value 28, 30 or 32, f takes the value 34, 36 or 38, g takes the value 42, 44 or 46, and h takes the value 48, 50 or 52.

[0449] For example, the index of the first symbol of a candidate SSB can satisfy: {2, 8, 16, 22, 30, 36, 44, 50} + 56n, (n = 0, 1, 2, ..., 7). If n = 0, symbol 2 in every 8 time slots can be the index of the first symbol of a candidate SSB, and symbols like 8 can also be the index of the first symbol of a candidate SSB. As another example, when n = 2, the index of the first symbol of a candidate SSB can be 114, which can also be called symbol 2 in every 8 time slots (i.e., the third one in a unit of 8 time slots).

[0450] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,7);

[0451] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,7).

[0452] It is understood that the specific formulas shown here are merely examples, and the specific values ​​of a to h mentioned above will not be listed one by one. It is also understood that the expressions shown here are presented cyclically in units of 8 time slots.

[0453] For example, when the subcarrier spacing of the SSB is 480kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 2ms, with 112 candidate SSB positions. The index of the first symbol of the candidate SSB (candidateSS / PBCH blocks) satisfies any of the following conditions:

[0454] {0,6}+14n,(n=0,1,2,…,31,40,…,63);{0,8}+14n,(n=0,1,2,…,31,40,…,63);{0,10}+14n,(n=0,1,2,…,31,40,…,63); {2,8}+14n, (n=0,1,2,…,31,40,…,63); {2,10}+14n, (n=0,1,2,…,31,40,…,63); {4,10}+14n, (n=0,1,2,…,31,40,…,63).

[0455] Alternatively, the index of the first symbol of a candidate SSB can satisfy any of the following conditions:

[0456] {0,6,14,20}+28n,(n=0,1,2,…,15,20,…,31);

[0457] {0,6,14,22}+28n,(n=0,1,2,…,15,20,…,31);

[0458] {0,6,14,24}+28n,(n=0,1,2,…,15,20,…,31);

[0459] {0,6,16,22}+28n,(n=0,1,2,…,15,20,…,31),

[0460] {0,6,16,24}+28n,(n=0,1,2,…,15,20,…,31);

[0461] {0,6,18,24}+28n,(n=0,1,2,…,15,20,…,31);

[0462] {0,8,14,20}+28n,(n=0,1,2,…,15,20,…,31),

[0463] {0,8,14,22}+28n,(n=0,1,2,…,15,20,…,31);

[0464] {0,8,14,24}+28n,(n=0,1,2,…,15,20,…,31);

[0465] {0,8,16,22}+28n,(n=0,1,2,…,15,20,…,31),

[0466] {0,8,16,24}+28n,(n=0,1,2,…,15,20,…,31);

[0467] {0,8,18,24}+28n,(n=0,1,2,…,15,20,…,31);

[0468] {0,10,14,20}+28n,(n=0,1,2,…,15,20,…,31),

[0469] {0,10,14,22}+28n,(n=0,1,2,…,15,20,…,31);

[0470] {0,10,14,24}+28n,(n=0,1,2,…,15,20,…,31);

[0471] {0,10,16,22}+28n,(n=0,1,2,…,15,20,…,31),

[0472] {0,10,16,24}+28n,(n=0,1,2,…,15,20,…,31);

[0473] {0,10,18,24}+28n,(n=0,1,2,…,15,20,…,31);

[0474] {2,8,14,20}+28n,(n=0,1,2,…,15,20,…,31);

[0475] {2,8,14,22}+28n,(n=0,1,2,…,15,20,…,31);

[0476] {2,8,14,24}+28n,(n=0,1,2,…,15,20,…,31);

[0477] {2,8,16,22}+28n,(n=0,1,2,…,15,20,…,31);

[0478] {2,8,16,24}+28n,(n=0,1,2,…,15,20,…,31);

[0479] {2,8,18,24}+28n,(n=0,1,2,…,15,20,…,31);

[0480] {2,10,14,20}+28n,(n=0,1,2,…,15,20,…,31);

[0481] {2,10,14,22}+28n,(n=0,1,2,…,15,20,…,31);

[0482] {2,10,14,24}+28n,(n=0,1,2,…,15,20,…,31);

[0483] {2,10,16,22}+28n,(n=0,1,2,…,15,20,…,31);

[0484] {2,10,16,24}+28n,(n=0,1,2,…,15,20,…,31);

[0485] {2,10,18,24}+28n,(n=0,1,2,…,15,20,…,31);

[0486] {4,10,14,20}+28n,(n=0,1,2,…,15,20,…,31),

[0487] {4,10,14,22}+28n,(n=0,1,2,…,15,20,…,31);

[0488] {4,10,14,24}+28n,(n=0,1,2,…,15,20,…,31);

[0489] {4,10,16,22}+28n,(n=0,1,2,…,15,20,…,31),

[0490] {4,10,16,24}+28n,(n=0,1,2,…,15,20,…,31);

[0491] {4,10,18,24}+28n, (n=0,1,2,…,15,20,…,31).

[0492] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0493] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,7,10,…,15).

[0494] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0495] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,7,10,…,15).

[0496] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,7,10,…,15).

[0497] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,7,10,…,15).

[0498] For example, when the subcarrier spacing of the SSB is 480kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 2.25ms, with 128 candidate SSB positions. The index of the first symbol of the candidate SSB (candidate SS / PBCH blocks) satisfies the following condition:

[0499] {0,6}+14n,(n=0,1,2,…,31,40,…,71),{0,8}+14n,(n=0,1,2,…,31,40,…,71);{0,10}+14n,(n=0,1,2,…,31,40,…,71); {2,8}+14n, (n=0,1,2,…,31,40,…,71); {2,10}+14n, (n=0,1,2,…,31,40,…,71); {4,10}+14n, (n=0,1,2,…,31,40,…,71).

[0500] Alternatively, the index of the first symbol of a candidate SSB can satisfy any of the following conditions:

[0501] {0,6,14,20}+28n,(n=0,1,2,…,15,20,…,35);

[0502] {0,6,14,22}+28n,(n=0,1,2,…,15,20,…,35);

[0503] {0,6,14,24}+28n,(n=0,1,2,…,15,20,…,35);

[0504] {0,6,16,22}+28n,(n=0,1,2,…,15,20,…,35);

[0505] {0,6,16,24}+28n,(n=0,1,2,…,15,20,…,35);

[0506] {0,6,18,24}+28n,(n=0,1,2,…,15,20,…,35);

[0507] {0,8,14,20}+28n,(n=0,1,2,…,15,20,…,35);

[0508] {0,8,14,22}+28n,(n=0,1,2,…,15,20,…,35);

[0509] {0,8,14,24}+28n,(n=0,1,2,…,15,20,…,35);

[0510] {0,8,16,22}+28n,(n=0,1,2,…,15,20,…,35);

[0511] {0,8,16,24}+28n,(n=0,1,2,…,15,20,…,35);

[0512] {0,8,18,24}+28n,(n=0,1,2,…,15,20,…,35);

[0513] {0,10,14,20}+28n,(n=0,1,2,…,15,20,…,35),

[0514] {0,10,14,22}+28n,(n=0,1,2,…,15,20,…,35);

[0515] {0,10,14,24}+28n,(n=0,1,2,…,15,20,…,35);

[0516] {0,10,16,22}+28n,(n=0,1,2,…,15,20,…,35);

[0517] {0,10,16,24}+28n,(n=0,1,2,…,15,20,…,35);

[0518] {0,10,18,24}+28n,(n=0,1,2,…,15,20,…,35);

[0519] {2,8,14,20}+28n,(n=0,1,2,…,15,20,…,35);

[0520] {2,8,14,22}+28n,(n=0,1,2,…,15,20,…,35);

[0521] {2,8,14,24}+28n,(n=0,1,2,…,15,20,…,31);

[0522] {2,8,16,22}+28n,(n=0,1,2,…,15,20,…,35);

[0523] {2,8,16,24}+28n,(n=0,1,2,…,15,20,…,35);

[0524] {2,8,18,24}+28n,(n=0,1,2,…,15,20,…,35);

[0525] {2,10,14,20}+28n,(n=0,1,2,…,15,20,…,35);

[0526] {2,10,14,22}+28n,(n=0,1,2,…,15,20,…,35);

[0527] {2,10,14,24}+28n,(n=0,1,2,…,15,20,…,35);

[0528] {2,10,16,22}+28n,(n=0,1,2,…,15,20,…,35);

[0529] {2,10,16,24}+28n,(n=0,1,2,…,15,20,…,35);

[0530] {2,10,18,24}+28n,(n=0,1,2,…,15,20,…,35);

[0531] {4,10,14,20}+28n,(n=0,1,2,…,15,20,…,35);

[0532] {4,10,14,22}+28n,(n=0,1,2,…,15,20,…,35);

[0533] {4,10,14,24}+28n,(n=0,1,2,…,15,20,…,35);

[0534] {4,10,16,22}+28n,(n=0,1,2,…,15,20,…,35);

[0535] {4,10,16,24}+28n,(n=0,1,2,…,15,20,…,35);

[0536] {4,10,18,24}+28n, (n=0,1,2,…,15,20,…,35).

[0537] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0538] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,7,10,…,17).

[0539] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0540] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,7,10,…,17).

[0541] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,7,10,…,17).

[0542] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,7,10,…,17).

[0543] The candidate SSB position is 128, and the DRS window length can be 2.25ms. For example, the length of the DRS window can be represented by the parameters "discoveryBurstWindowLength", "discoveryBurstWindowLength-r16", or "discoveryBurstWindowLength-r17". For instance, `discoveryBurstWindowLength-r17 ENUMERATED{ms0dot5,ms1,ms2,ms2dot25,ms3,ms4,ms5}`. For example, when the value of the `discoveryBurstWindowLength-r17` parameter is `ms2dot25`, it indicates that the length of the DRS window is 2.25ms.

[0544] For example, when the subcarrier spacing of the SSB is 480kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 3ms, with 160 candidate SSB positions. The index of the first symbol of the candidate SSB (candidateSS / PBCH blocks) satisfies the following condition:

[0545] {0,6}+14n,(n=0,1,2,…,31,40,…,71,80,…,95);{0,8}+14n,(n=0,1,2,…, 31,40,…,71,80,…,95);{0,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,95); {2,8}+14n,(n=0,1,2,…,31,40,…,71,80,…,95); {2,10}+14n,(n=0,1,2,… ,31,40,…,71,80,…,95); {4,10}+14n, (n=0,1,2,…,31,40,…,71,80,…,95).

[0546] Alternatively, the index of the first symbol of a candidate SSB can satisfy any of the following conditions:

[0547] {0,6,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0548] {0,6,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0549] {0,6,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0550] {0,6,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0551] {0,6,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0552] {0,6,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0553] {0,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0554] {0,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0555] {0,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0556] {0,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0557] {0,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0558] {0,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0559] {0,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0560] {0,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0561] {0,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0562] {0,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0563] {0,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0564] {0,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0565] {2,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0566] {2,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0567] {2,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0568] {2,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0569] {2,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0570] {2,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0571] {2,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0572] {2,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0573] {2,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0574] {2,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0575] {2,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0576] {2,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0577] {4,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0578] {4,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0579] {4,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0580] {4,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0581] {4,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0582] {4,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,47);

[0583] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0584] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,7,10,…,17,20,…,23).

[0585] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0586] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,23).

[0587] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,7,10,…,17,20,…,23).

[0588] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,23).

[0589] For example, when the subcarrier spacing of the SSB is 480kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 3.5ms, with 192 candidate SSB positions. The index of the first symbol of the candidate SSB (candidateSS / PBCH blocks) satisfies the following condition:

[0590] {0,6}+14n,(n=0,1,2,…,31,40,…,71,80,…,111);{0,8}+14n,(n=0,1,2,…, 31,40,…,71,80,…,111);{0,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,111); {2,8}+14n,(n=0,1,2,…,31,40,…,71,80,…,111); {2,10}+14n,(n=0,1,2,…, 31,40,…,71,80,…,111); {4,10}+14n, (n=0,1,2,…,31,40,…,71,80,…,111).

[0591] Alternatively, the index of the first symbol of a candidate SSB can satisfy any of the following conditions:

[0592] {0,6,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0593] {0,6,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0594] {0,6,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0595] {0,6,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0596] {0,6,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0597] {0,6,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0598] {0,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0599] {0,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0600] {0,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0601] {0,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0602] {0,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0603] {0,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0604] {0,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0605] {0,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0606] {0,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0607] {0,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0608] {0,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0609] {0,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0610] {2,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0611] {2,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0612] {2,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0613] {2,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0614] {2,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0615] {2,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0616] {2,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0617] {2,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0618] {2,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0619] {2,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0620] {2,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0621] {2,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0622] {4,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0623] {4,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0624] {4,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0625] {4,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0626] {4,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55);

[0627] {4,10,18,24}+28n, (n=0,1,2,…,15,20,…,35,40,…,55).

[0628] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0629] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,7,10,…,17,20,…,27).

[0630] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0631] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,27).

[0632] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,7,10,…,17,20,…,27).

[0633] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,27).

[0634] The candidate SSB position is 192, and the DRS window length is 3.5ms. For example, the length of the DRS window can be represented by the parameters "discoveryBurstWindowLength", "discoveryBurstWindowLength-r16", or "discoveryBurstWindowLength-r17". For instance, discoveryBurstWindowLength-r17 ENUMERATED{ms0dot5,ms1,ms2,ms3,ms3dot5,ms4,ms5}. When the value of the discoveryBurstWindowLength-r17 parameter is ms3dot5, it indicates that the DRS window length is 3.5ms.

[0635] For example, when the subcarrier spacing of the SSB is 480kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 4ms, with 208 candidate SSB positions. The index of the first symbol of the candidate SSB (candidateSS / PBCH blocks) satisfies any of the following conditions:

[0636] {0,6}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0637] {0,8}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0638] {0,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0639] {2,8}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0640] {2,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0641] {4,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0642] {0,6,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0643] {0,6,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0644] {0,6,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0645] {0,6,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0646] {0,6,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0647] {0,6,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0648] {0,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0649] {0,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0650] {0,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0651] {0,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0652] {0,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0653] {0,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0654] {0,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0655] {0,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0656] {0,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0657] {0,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0658] {0,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0659] {0,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0660] {2,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0661] {2,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0662] {2,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0663] {2,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0664] {2,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0665] {2,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0666] {2,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0667] {2,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0668] {2,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0669] {2,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0670] {2,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0671] {2,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0672] {4,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0673] {4,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0674] {4,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0675] {4,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0676] {4,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,63);

[0677] {4,10,18,24}+28n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…,63).

[0678] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0679] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,31).

[0680] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0681] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,31).

[0682] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,31).

[0683] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,31).

[0684] For example, when the subcarrier spacing of the SSB is 480kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 5ms, with 256 candidate SSB positions. The index of the first symbol of a candidate SSB (candidateSS / PBCH block) satisfies any of the following conditions:

[0685] {0,6}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[0686] {0,8}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[0687] {0,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[0688] {2,8}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[0689] {2,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[0690] {4,10}+14n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[0691] {0,6,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0692] {0,6,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0693] {0,6,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0694] {0,6,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0695] {0,6,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0696] {0,6,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0697] {0,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0698] {0,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0699] {0,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0700] {0,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0701] {0,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0702] {0,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0703] {0,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0704] {0,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0705] {0,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0706] {0,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0707] {0,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0708] {0,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0709] {2,8,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0710] {2,8,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0711] {2,8,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0712] {2,8,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0713] {2,8,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0714] {2,8,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0715] {2,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0716] {2,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0717] {2,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0718] {2,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0719] {2,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0720] {2,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0721] {4,10,14,20}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0722] {4,10,14,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0723] {4,10,14,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0724] {4,10,16,22}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0725] {4,10,16,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75);

[0726] {4,10,18,24}+28n,(n=0,1,2,…,15,20,…,35,40,…,55,60,…,75)。

[0727] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0728] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,…,37).

[0729] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0730] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,…,37).

[0731] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,…,37).

[0732] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,7,10,…,17,20,…,27,30,…,37).

[0733] For example, when the subcarrier spacing of the SSB is 960kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 1ms, with 128 candidate SSB positions. The index of the first symbol of the candidate SSB (candidateSS / PBCH blocks) satisfies any of the following conditions:

[0734] {0,6}+14n,(n=0,1,2,…,63);

[0735] {0,8}+14n,(n=0,1,2,…,63);

[0736] {0,10}+14n,(n=0,1,2,…,63);

[0737] {2,8}+14n,(n=0,1,2,…,63);

[0738] {2,10}+14n,(n=0,1,2,…,63);

[0739] {4,10}+14n,(n=0,1,2,…,63);

[0740] {0,6,14,20}+28n,(n=0,1,2,…,31);

[0741] {0,6,14,22}+28n,(n=0,1,2,…,31);

[0742] {0,6,14,24}+28n,(n=0,1,2,…,31);

[0743] {0,6,16,22}+28n,(n=0,1,2,…,31);

[0744] {0,6,16,24}+28n,(n=0,1,2,…,31);

[0745] {0,6,18,24}+28n,(n=0,1,2,…,31);

[0746] {0,8,14,20}+28n,(n=0,1,2,…,31);

[0747] {0,8,14,22}+28n,(n=0,1,2,…,31);

[0748] {0,8,14,24}+28n,(n=0,1,2,…,31);

[0749] {0,8,16,22}+28n,(n=0,1,2,…,31);

[0750] {0,8,16,24}+28n,(n=0,1,2,…,31);

[0751] {0,8,18,24}+28n,(n=0,1,2,…,31);

[0752] {0,10,14,20}+28n,(n=0,1,2,…,31);

[0753] {0,10,14,22}+28n,(n=0,1,2,…,31);

[0754] {0,10,14,24}+28n,(n=0,1,2,…,31);

[0755] {0,10,16,22}+28n,(n=0,1,2,…,31);

[0756] {0,10,16,24}+28n,(n=0,1,2,…,31);

[0757] {0,10,18,24}+28n,(n=0,1,2,…,31);

[0758] {2,8,14,20}+28n,(n=0,1,2,…,31);

[0759] {2,8,14,22}+28n,(n=0,1,2,…,31);

[0760] {2,8,14,24}+28n,(n=0,1,2,…,31);

[0761] {2,8,16,22}+28n,(n=0,1,2,…,31);

[0762] {2,8,16,24}+28n,(n=0,1,2,…,31);

[0763] {2,8,18,24}+28n,(n=0,1,2,…,31);

[0764] {2,10,14,20}+28n,(n=0,1,2,…,31);

[0765] {2,10,14,22}+28n,(n=0,1,2,…,31);

[0766] {2,10,14,24}+28n,(n=0,1,2,…,31);

[0767] {2,10,16,22}+28n,(n=0,1,2,…,31);

[0768] {2,10,16,24}+28n,(n=0,1,2,…,31);

[0769] {2,10,18,24}+28n,(n=0,1,2,…,31);

[0770] {4,10,14,20}+28n,(n=0,1,2,…,31);

[0771] {4,10,14,22}+28n,(n=0,1,2,…,31);

[0772] {4,10,14,24}+28n,(n=0,1,2,…,31);

[0773] {4,10,16,22}+28n,(n=0,1,2,…,31);

[0774] {4,10,16,24}+28n,(n=0,1,2,…,31);

[0775] {4,10,18,24}+28n, (n=0,1,2,…,31).

[0776] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0777] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,15).

[0778] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0779] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,15).

[0780] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,15).

[0781] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,15).

[0782] For example, when the subcarrier spacing of the SSB is 960kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 2ms, with 224 candidate SSB positions. The index of the first symbol of a candidate SSB (candidateSS / PBCH block) satisfies any of the following conditions:

[0783] {0,6}+14n,(n=0,1,2,…,63,80,…,127);

[0784] {0,8}+14n,(n=0,1,2,…,63,80,…,127);

[0785] {0,10}+14n,(n=0,1,2,…,63,80,…,127);

[0786] {2,8}+14n,(n=0,1,2,…,63,80,…,127);

[0787] {2,10}+14n,(n=0,1,2,…,63,80,…,127);

[0788] {4,10}+14n, (n=0,1,2,…,63,80,…,127).

[0789] Alternatively, the index of the first symbol of a candidate SSB can satisfy any of the following conditions:

[0790] {0,6,14,20}+28n,(n=0,1,2,…,31,40,…,63);

[0791] {0,6,14,22}+28n,(n=0,1,2,…,31,40,…,63);

[0792] {0,6,14,24}+28n,(n=0,1,2,…,31,40,…,63);

[0793] {0,6,16,22}+28n,(n=0,1,2,…,31,40,…,63);

[0794] {0,6,16,24}+28n,(n=0,1,2,…,31,40,…,63);

[0795] {0,6,18,24}+28n,(n=0,1,2,…,31,40,…,63);

[0796] {0,8,14,20}+28n,(n=0,1,2,…,31,40,…,63);

[0797] {0,8,14,22}+28n,(n=0,1,2,…,31,40,…,63);

[0798] {0,8,14,24}+28n,(n=0,1,2,…,31,40,…,63);

[0799] {0,8,16,22}+28n,(n=0,1,2,…,31,40,…,63);

[0800] {0,8,16,24}+28n,(n=0,1,2,…,31,40,…,63);

[0801] {0,8,18,24}+28n,(n=0,1,2,…,31,40,…,63);

[0802] {0,10,14,20}+28n,(n=0,1,2,…,31,40,…,63);

[0803] {0,10,14,22}+28n,(n=0,1,2,…,31,40,…,63);

[0804] {0,10,14,24}+28n,(n=0,1,2,…,31,40,…,63);

[0805] {0,10,16,22}+28n,(n=0,1,2,…,31,40,…,63);

[0806] {0,10,16,24}+28n,(n=0,1,2,…,31,40,…,63);

[0807] {0,10,18,24}+28n,(n=0,1,2,…,31,40,…,63);

[0808] {2,8,14,20}+28n,(n=0,1,2,…,31,40,…,63);

[0809] {2,8,14,22}+28n,(n=0,1,2,…,31,40,…,63);

[0810] {2,8,14,24}+28n,(n=0,1,2,…,31,40,…,63);

[0811] {2,8,16,22}+28n,(n=0,1,2,…,31,40,…,63);

[0812] {2,8,16,24}+28n,(n=0,1,2,…,31,40,…,63);

[0813] {2,8,18,24}+28n,(n=0,1,2,…,31,40,…,63);

[0814] {2,10,14,20}+28n,(n=0,1,2,…,31,40,…,63);

[0815] {2,10,14,22}+28n,(n=0,1,2,…,31,40,…,63);

[0816] {2,10,14,24}+28n,(n=0,1,2,…,31,40,…,63);

[0817] {2,10,16,22}+28n,(n=0,1,2,…,31,40,…,63);

[0818] {2,10,16,24}+28n,(n=0,1,2,…,31,40,…,63);

[0819] {2,10,18,24}+28n,(n=0,1,2,…,31,40,…,63);

[0820] {4,10,14,20}+28n,(n=0,1,2,…,31,40,…,63);

[0821] {4,10,14,22}+28n,(n=0,1,2,…,31,40,…,63);

[0822] {4,10,14,24}+28n,(n=0,1,2,…,31,40,…,63);

[0823] {4,10,16,22}+28n,(n=0,1,2,…,31,40,…,63);

[0824] {4,10,16,24}+28n,(n=0,1,2,…,31,40,…,63);

[0825] {4,10,18,24}+28n, (n=0,1,2,…,31,40,…,63).

[0826] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0827] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,15,20,…,31).

[0828] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0829] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,15,20,…,31).

[0830] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,15,20,…,31).

[0831] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,15,20,…,31).

[0832] For example, when the subcarrier spacing of the SSB is 960kHz, for a system operating in an unlicensed frequency band (or a shared frequency band), the DRS window length is 2.25ms, with 256 candidate SSB positions. The index of the first symbol of a candidate SSB (SS / PBCH block) satisfies any of the following conditions:

[0833] {0,6}+14n,(n=0,1,2,…,63,80,…,143);

[0834] {0,8}+14n,(n=0,1,2,…,63,80,…,143);

[0835] {0,10}+14n,(n=0,1,2,…,63,80,…,143);

[0836] {2,8}+14n,(n=0,1,2,…,63,80,…,143);

[0837] {2,10}+14n,(n=0,1,2,…,63,80,…,143);

[0838] {4,10}+14n,(n=0,1,2,…,63,80,…,143);

[0839] {0,6,14,20}+28n,(n=0,1,2,…,31,40,…,71);

[0840] {0,6,14,22}+28n,(n=0,1,2,…,31,40,…,71);

[0841] {0,6,14,24}+28n,(n=0,1,2,…,31,40,…,71);

[0842] {0,6,16,22}+28n,(n=0,1,2,…,31,40,…,71);

[0843] {0,6,16,24}+28n,(n=0,1,2,…,31,40,…,71);

[0844] {0,6,18,24}+28n,(n=0,1,2,…,31,40,…,71);

[0845] {0,8,14,20}+28n,(n=0,1,2,…,31,40,…,71);

[0846] {0,8,14,22}+28n,(n=0,1,2,…,31,40,…,71);

[0847] {0,8,14,24}+28n,(n=0,1,2,…,31,40,…,71);

[0848] {0,8,16,22}+28n,(n=0,1,2,…,31,40,…,71);

[0849] {0,8,16,24}+28n,(n=0,1,2,…,31,40,…,71);

[0850] {0,8,18,24}+28n,(n=0,1,2,…,31,40,…,71);

[0851] {0,10,14,20}+28n,(n=0,1,2,…,31,40,…,71);

[0852] {0,10,14,22}+28n,(n=0,1,2,…,31,40,…,71);

[0853] {0,10,14,24}+28n,(n=0,1,2,…,31,40,…,71);

[0854] {0,10,16,22}+28n,(n=0,1,2,…,31,40,…,71);

[0855] {0,10,16,24}+28n,(n=0,1,2,…,31,40,…,71);

[0856] {0,10,18,24}+28n,(n=0,1,2,…,31,40,…,71);

[0857] {2,8,14,20}+28n,(n=0,1,2,…,31,40,…,71);

[0858] {2,8,14,22}+28n,(n=0,1,2,…,31,40,…,71);

[0859] {2,8,14,24}+28n,(n=0,1,2,…,31,40,…,71);

[0860] {2,8,16,22}+28n,(n=0,1,2,…,31,40,…,71);

[0861] {2,8,16,24}+28n,(n=0,1,2,…,31,40,…,71);

[0862] {2,8,18,24}+28n,(n=0,1,2,…,31,40,…,71);

[0863] {2,10,14,20}+28n,(n=0,1,2,…,31,40,…,71);

[0864] {2,10,14,22}+28n,(n=0,1,2,…,31,40,…,71);

[0865] {2,10,14,24}+28n,(n=0,1,2,…,31,40,…,71);

[0866] {2,10,16,22}+28n,(n=0,1,2,…,31,40,…,71);

[0867] {2,10,16,24}+28n,(n=0,1,2,…,31,40,…,71);

[0868] {2,10,18,24}+28n,(n=0,1,2,…,31,40,…,71);

[0869] {4,10,14,20}+28n,(n=0,1,2,…,31,40,…,71);

[0870] {4,10,14,22}+28n,(n=0,1,2,…,31,40,…,71);

[0871] {4,10,14,24}+28n,(n=0,1,2,…,31,40,…,71);

[0872] {4,10,16,22}+28n,(n=0,1,2,…,31,40,…,71);

[0873] {4,10,16,24}+28n,(n=0,1,2,…,31,40,…,71);

[0874] {4,10,18,24}+28n, (n=0,1,2,…,31,40,…,71).

[0875] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0876] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,15,20,…,35).

[0877] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0878] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,15,20,…,35).

[0879] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,15,20,…,35).

[0880] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,15,20,…,35).

[0881] The candidate SSB position is 256, and the DRS window length is 2.25ms. For example, the length of the DRS window can be represented by the parameters "discoveryBurstWindowLength", "discoveryBurstWindowLength-r16", or "discoveryBurstWindowLength-r17". For instance, discoveryBurstWindowLength-r17 ENUMERATED{ms0dot5,ms1,ms2,ms2dot25,ms3,ms4,ms5}. When the value of the discoveryBurstWindowLength-r17 parameter is ms2dot25, it indicates that the DRS window length is 2.25ms.

[0882] For example, when the subcarrier spacing of the SSB is 960 kHz, the position of the candidate SSB is 320, and the length of the DRS window is 3 ms. For systems operating in unlicensed frequency bands (or shared frequency bands), the index of the first symbol of the candidate SSB (candidate SS / PBCH blocks) satisfies any of the following conditions:

[0883] {0,6}+14n,(n=0,1,2,…,63,80,…,143,160,…,191);

[0884] {0,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,191);

[0885] {0,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,191);

[0886] {2,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,191);

[0887] {2,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,191);

[0888] {4,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,191);

[0889] {0,6,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0890] {0,6,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0891] {0,6,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0892] {0,6,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0893] {0,6,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0894] {0,6,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0895] {0,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0896] {0,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0897] {0,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0898] {0,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0899] {0,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0900] {0,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0901] {0,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0902] {0,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0903] {0,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0904] {0,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0905] {0,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0906] {0,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0907] {2,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0908] {2,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0909] {2,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0910] {2,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0911] {2,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0912] {2,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0913] {2,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0914] {2,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0915] {2,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0916] {2,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0917] {2,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0918] {2,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0919] {4,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0920] {4,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0921] {4,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0922] {4,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0923] {4,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,95);

[0924] {4,10,18,24}+28n, (n=0,1,2,…,31,40,…,71,80,…,95).

[0925] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0926] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,15,20,…,35,40,…,47).

[0927] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[0928] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,47).

[0929] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,15,20,…,35,40,…,47).

[0930] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,47).

[0931] For example, when the subcarrier spacing of the SSB is 960 kHz, the position of the candidate SSB is 384, and the length of the DRS window is 3.5 ms. For systems operating in unlicensed frequency bands (or shared frequency bands), the index of the first symbol of the candidate SSB (candidate SS / PBCH blocks) satisfies any of the following conditions:

[0932] {0,6}+14n,(n=0,1,2,…,63,80,…,143,160,…,223);

[0933] {0,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,223);

[0934] {0,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223);

[0935] {2,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,223);

[0936] {2,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223);

[0937] {4,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223);

[0938] {0,6,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0939] {0,6,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0940] {0,6,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0941] {0,6,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0942] {0,6,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0943] {0,6,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0944] {0,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0945] {0,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0946] {0,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0947] {0,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0948] {0,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0949] {0,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0950] {0,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0951] {0,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0952] {0,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0953] {0,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0954] {0,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0955] {0,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0956] {2,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0957] {2,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0958] {2,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0959] {2,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0960] {2,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0961] {2,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0962] {2,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0963] {2,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0964] {2,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0965] {2,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0966] {2,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0967] {2,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0968] {4,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0969] {4,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0970] {4,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0971] {4,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0972] {4,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111);

[0973] {4,10,18,24}+28n, (n=0,1,2,…,31,40,…,71,80,…,111).

[0974] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[0975] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,15,20,…,35,40,…,55).

[0976] Where a takes the value 0, 2, or 4; b takes the value 6, 8, or 10; c takes the value 14, 16, or 18; d takes the value 20, 22, or 24; e takes the value 28, 30, or 32; f takes the value 34, 36, or 38; g takes the value 42, 44, or 46; and h takes the value 48, 50, or 52. For example,

[0977] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,55).

[0978] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,15,20,…,35,40,…,55).

[0979] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,55).

[0980] The candidate SSB position is 384, and the DRS window length is 3.5ms. For example, the length of the DRS window can be represented by the parameters "discoveryBurstWindowLength", "discoveryBurstWindowLength-r16", or "discoveryBurstWindowLength-r17". For instance, `discoveryBurstWindowLength-r17 ENUMERATED{ms0dot5,ms1,ms2,ms3,ms3dot5,ms4,ms5}`. When the value of the `discoveryBurstWindowLength-r17` parameter is `ms2dot25`, it indicates that the DRS window length is 2.25ms.

[0981] For example, when the subcarrier spacing of the SSB is 960 kHz, the position of the candidate SSB is 416, and the length of the DRS window is 4 ms. For systems operating in unlicensed frequency bands (or shared frequency bands), the index of the first symbol of the candidate SSB (candidate SS / PBCH blocks) satisfies any of the following conditions:

[0982] {0,6}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,255);

[0983] {0,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,255);

[0984] {0,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,255);

[0985] {2,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,255);

[0986] {2,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,255);

[0987] {4,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,255);

[0988] {0,6,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0989] {0,6,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0990] {0,6,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0991] {0,6,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0992] {0,6,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0993] {0,6,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0994] {0,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0995] {0,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0996] {0,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0997] {0,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0998] {0,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[0999] {0,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1000] {0,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1001] {0,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1002] {0,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1003] {0,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1004] {0,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1005] {0,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1006] {2,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1007] {2,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1008] {2,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1009] {2,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1010] {2,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1011] {2,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1012] {2,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1013] {2,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1014] {2,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1015] {2,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1016] {2,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1017] {2,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1018] {4,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1019] {4,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1020] {4,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1021] {4,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1022] {4,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,127);

[1023] {4,10,18,24}+28n, (n=0,1,2,…,31,40,…,71,80,…,111,120,…,127).

[1024] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[1025] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…,63).

[1026] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[1027] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…,63).

[1028] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…,63).

[1029] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…,63).

[1030] For example, when the subcarrier spacing of the SSB is 960 kHz, the position of the candidate SSB is 512, and the length of the DRS window is 5 ms. For systems operating in unlicensed frequency bands (or shared frequency bands), the index of the first symbol of the candidate SSB (candidate SS / PBCH blocks) satisfies any of the following conditions:

[1031] {0,6}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,303);

[1032] {0,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,303);

[1033] {0,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,303);

[1034] {2,8}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,303);

[1035] {2,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,303);

[1036] {4,10}+14n,(n=0,1,2,…,63,80,…,143,160,…,223,240,…,303);

[1037] {0,6,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1038] {0,6,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1039] {0,6,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1040] {0,6,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1041] {0,6,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1042] {0,6,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1043] {0,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1044] {0,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1045] {0,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1046] {0,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1047] {0,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1048] {0,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1049] {0,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1050] {0,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1051] {0,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1052] {0,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1053] {0,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1054] {0,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1055] {2,8,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1056] {2,8,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1057] {2,8,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1058] {2,8,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1059] {2,8,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1060] {2,8,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1061] {2,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1062] {2,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1063] {2,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1064] {2,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1065] {2,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1066] {2,10,18,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1067] {4,10,14,20}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1068] {4,10,14,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1069] {4,10,14,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1070] {4,10,16,22}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1071] {4,10,16,24}+28n,(n=0,1,2,…,31,40,…,71,80,…,111,120,…,151);

[1072] {4,10,18,24}+28n, (n=0,1,2,…,31,40,…,71,80,…,111,120,…,151).

[1073] Alternatively, the index of the first symbol of the candidate SSB (SS / PBCH blocks) satisfies any of the following conditions:

[1074] {a,b,c,d,e,f,g,h}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…75).

[1075] Where a takes the value 0, 2 or 4; b takes the value 6, 8 or 10; c takes the value 14, 16 or 18; d takes the value 20, 22 or 24; e takes the value 28, 30 or 32; f takes the value 34, 36 or 38; g takes the value 42, 44 or 46; and h takes the value 48, 50 or 52.

[1076] For example, the index of the first symbol of a candidate SSB can satisfy: {2,8,16,22,30,36,44,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…75).

[1077] For example, the index of the first symbol of a candidate SSB can satisfy: {2,10,16,24,30,38,44,52}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…75).

[1078] For example, the index of the first symbol of a candidate SSB can satisfy: {0,8,14,22,28,36,42,50}+56n, (n=0,1,2,…,15,20,…,35,40,…,55,60,…75).

[1079] The candidate SSB position is one of 128, 224, 256, 320, 384, 416, or 512, and the DRS window length is {0.5ms, 1ms, 2ms, 2.25ms, 3ms, 3.5ms, 4ms, 5ms}. For example, the DRS window length can be represented by the parameter "discoveryBurstWindowLength", "discoveryBurstWindowLength-r16", or "discoveryBurstWindowLength-r17". For instance, discoveryBurstWindowLength-r17 ENUMERATED{ms0dot5,ms1,ms2,ms2dot25,ms3,ms3dot5,ms4,ms5}.

[1080] It is understood that the DRS window shown in this application may also be referred to as DBTW (discovery burst transmission window).

Claims

1. A method for transmitting synchronization / physical broadcast channel (SS / PBCH) blocks, characterized in that, The method is applied to a terminal device or a circuit system in the terminal device, and the method includes: The terminal device receives an SS / PBCH block; The terminal device obtains indication information based on the SS / PBCH block; wherein, the indication information includes information for indicating the demodulation reference signal (DMRS) sequence and the PBCH load; wherein, the DMRS sequence occupies 3 bits, and the PBCH load occupies 4, 5, 6, 7, or 8 bits, and the indication information is used to indicate the candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, the number of candidate indices is greater than 64, and the SS / PBCH block burst set is the set in which the SS / PBCH block is located; The terminal device receives another SS / PBCH block from the SS / PBCH block burst set; The terminal device receives configuration information; wherein, the configuration information includes the length of the burst set transmission window. When the subcarrier spacing (SCS) is 15 kHz or 120 kHz, the length of the burst set transmission window is greater than 5 ms; when the SCS is 480 kHz, the length of the burst set transmission window is greater than 1 ms and less than 2 ms; when the SCS is 960 kHz or 1920 kHz, the length of the burst set transmission window is greater than 0.5 ms and less than 1 ms. The burst set transmission window is used by the terminal device to receive one or more SS / PBCH block burst sets.

2. The method according to claim 1, characterized in that, The number of candidate indices is greater than or equal to 128.

3. The method according to claim 1, characterized in that, In multiple SS / PBCH block burst sets, at least two SS / PBCH block burst sets occupy different time slots, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in the same position; or... In multiple SS / PBCH block burst sets, at least two SS / PBCH sets occupy different time slots, and the SS / PBCH blocks of the at least two SS / PBCH block burst sets are in different positions; or, At least two of the multiple SS / PBCH block burst sets include different numbers of SS / PBCH blocks.

4. The method according to claim 3, characterized in that, If at least two SS / PBCH block burst sets occupy different time slots in the plurality of SS / PBCH block burst sets, and the positions of the SS / PBCH blocks in the at least two SS / PBCH block burst sets are the same, the SS / PBCH block burst set sent by the network device to the terminal device is determined by the network device based on the LBT (Listen Before Talk) result.

5. The method according to any one of claims 1-4, characterized in that, The configuration information also includes the period of the burst set transmission window, and the period of the burst set transmission window is different from the period of the SS / PBCH block burst set.

6. The method according to any one of claims 1-4, characterized in that, The temporal location occupied by an SS / PBCH block in the SS / PBCH block burst set satisfies the following condition: The starting symbol of an SS / PBCH block in the SS / PBCH block burst set is any even-numbered symbol from the first to the eleventh symbol in a time slot configured by the network device; and / or, The starting symbol interval between two adjacent SS / PBCH blocks in the SS / PBCH block burst set is any one or more of 3, 5, 7 or 9.

7. The method according to any one of claims 1-4, characterized in that, The SS / PBCH block and the physical downlink shared channel (PDSCH) associated with the SS / PBCH block satisfy the following conditions: The symbol length occupied by the PDSCH is 1 or 3; and / or, The starting symbol of the PDSCH is the second or fourth symbol among the four symbols occupied by the SS / PBCH block.

8. A communication device, characterized in that, include: The transceiver unit is used to receive one SS / PBCH block; A processing unit is configured to obtain indication information based on the one SS / PBCH block; wherein the indication information includes information for indicating the demodulation reference signal (DMRS) sequence and the PBCH load; wherein the DMRS sequence occupies 3 bits, and the PBCH load occupies 4, 5, 6, 7, or 8 bits, and the indication information is used to indicate the candidate index of at least one SS / PBCH block in the SS / PBCH block burst set, the number of candidate indices being greater than 64, and the SS / PBCH block burst set being the set to which the one SS / PBCH block belongs; The transceiver unit is also used to receive another SS / PBCH block in the SS / PBCH block burst set; The transceiver unit is also used to receive configuration information; wherein, the configuration information includes the length of the burst set transmission window. When the subcarrier spacing (SCS) is 15 kHz or 120 kHz, the length of the burst set transmission window is greater than 5 ms; when the SCS is 480 kHz, the length of the burst set transmission window is greater than 1 ms and less than 2 ms; when the SCS is 960 kHz or 1920 kHz, the length of the burst set transmission window is greater than 0.5 ms and less than 1 ms. The burst set transmission window is used by the terminal device to receive one or more SS / PBCH block burst sets.

9. The communication device according to claim 8, characterized in that, The number of candidate indices is greater than or equal to 128.

10. The communication device according to claim 8, characterized in that, In multiple SS / PBCH block burst sets, at least two SS / PBCH block burst sets occupy different time slots, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in the same position; or... In multiple SS / PBCH block burst sets, at least two SS / PBCH sets occupy different time slots, and the SS / PBCH blocks in the at least two SS / PBCH block burst sets are in different positions; or, At least two of the multiple SS / PBCH block burst sets include different numbers of SS / PBCH blocks.

11. The communication device according to claim 10, characterized in that, If at least two SS / PBCH block burst sets occupy different time slots in the plurality of SS / PBCH block burst sets, and the positions of the SS / PBCH blocks in the at least two SS / PBCH block burst sets are the same, the SS / PBCH block burst set sent by the network device to the terminal device is determined by the network device based on the LBT (Listen Before Talk) result.

12. The communication device according to any one of claims 8-11, characterized in that, The configuration information also includes the period of the burst set transmission window, and the period of the burst set transmission window is different from the period of the SS / PBCH block burst set.

13. The communication device according to any one of claims 8-11, characterized in that, The temporal location occupied by an SS / PBCH block in the SS / PBCH block burst set satisfies the following condition: The starting symbol of an SS / PBCH block in the SS / PBCH block burst set is any even-numbered symbol from the first to the eleventh symbol in a time slot configured by the network device; and / or, The starting symbol interval between two adjacent SS / PBCH blocks in the SS / PBCH block burst set is any one or more of 3, 5, 7 or 9.

14. The communication device according to any one of claims 8-11, characterized in that, The SS / PBCH block and the physical downlink shared channel (PDSCH) associated with the SS / PBCH block satisfy the following conditions: The symbol length occupied by the PDSCH is 1 or 3; and / or, The starting symbol of the PDSCH is the second or fourth symbol among the four symbols occupied by the SS / PBCH block.

15. A communication device, characterized in that, include: A processor for executing a program stored in memory, which, when executed, causes the communication device to perform the method as described in any one of claims 1-7.

16. The apparatus according to claim 15, characterized in that, The memory is located outside the communication device.

17. A communication device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein when the program is executed, the communication device performs the method as described in any one of claims 1-7.

18. A computer-readable storage medium, characterized in that, Includes a computer program, which, when run on a computer, performs the method as described in any one of claims 1-7.

19. A computer program product, characterized in that, When the computer program product is run on a computer, the method described in any one of claims 1-7 is performed.

20. A computer program, characterized in that, When the computer program is run on a computer, it causes the method described in any one of claims 1-7 to be performed.

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