Wireless communication methods and apparatuses, and device and storage medium

Abstract

Wireless communication methods and apparatuses, and a device and a storage medium, which belong to the technical field of mobile communications. A wireless communication method is executed by a terminal device. The method comprises: receiving a synchronization signal block (SSB) at a first reception occasion within a first period (310), wherein the SSB comprises one or more of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), and the first period comprises at least one reception occasion, each reception occasion corresponding to a candidate SSB.

Description

Wireless communication methods, apparatus, devices and storage media Technical Field

[0001] This application relates to the field of mobile communication technology, and in particular to a wireless communication method, apparatus, device and storage medium. Background Technology

[0002] In wireless communication systems, terminal devices typically need to perform cell search in order to access or hand over a cell after it is found.

[0003] In related technologies, network devices can periodically send synchronization signals and physical broadcast channel blocks (SSBs), and terminal devices perform cell search and synchronization by detecting SSBs. Summary of the Invention

[0004] This application provides a wireless communication method, apparatus, device, and storage medium. The technical solution is as follows:

[0005] On one hand, embodiments of this application provide a wireless communication method, which is executed by a terminal device, and the method includes:

[0006] A synchronization signal block SSB is received at the first reception time within the first cycle. The SSB includes one or more of the primary synchronization signal (PSS), secondary synchronization signal (SSS), and physical broadcast channel PBCH.

[0007] The first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

[0008] On one hand, embodiments of this application provide a wireless communication method, which is executed by a network device, and the method includes:

[0009] An SSB is sent at the first access time within the first cycle, so that the terminal device receives the SSB at the first reception time. The SSB includes one or more of PSS, SSS, and PBCH.

[0010] The first period includes at least one reception opportunity, and each reception opportunity corresponds to one candidate SSB.

[0011] On the other hand, embodiments of this application provide a wireless communication device, the device comprising:

[0012] The receiving module is configured to receive a synchronization signal block SSB at a first receiving time within a first period, wherein the SSB includes one or more of a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH.

[0013] The first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

[0014] On the other hand, embodiments of this application provide a wireless communication device, the device comprising:

[0015] The transmitting module is configured to transmit an SSB at a first access opportunity within a first period, so that the terminal device can receive the SSB at the first receiving opportunity, wherein the SSB includes one or more of PSS, SSS, and PBCH;

[0016] The first period includes at least one reception opportunity, and each reception opportunity corresponds to one candidate SSB.

[0017] On the other hand, embodiments of this application provide a communication device, which includes a processor, a memory, and a transceiver;

[0018] The memory stores a computer program, and the processor executes the computer program to enable the communication device to implement the above-described wireless communication method.

[0019] In another aspect, embodiments of this application also provide a computer-readable storage medium storing a computer program, which is loaded and executed by a processor to implement the above-described wireless communication method.

[0020] In another aspect, this application also provides a chip, the chip including an integrated circuit and firmware disposed in the integrated circuit, the chip being used to operate in a communication device to cause the communication device to perform the above-described wireless communication method.

[0021] In another aspect, this application provides a computer program product including computer instructions stored in a computer-readable storage medium. A processor of a communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the communication device to perform the aforementioned wireless communication method.

[0022] In another aspect, this application provides a computer program that is executed by the processor of a communication device to implement the above-described wireless communication method.

[0023] The solution provided in this application embodiment allows the SSB received by the terminal device to include one or more of the primary synchronization signal PSS, secondary synchronization signal SSS, and physical broadcast channel PBCH. In other words, the SSB can include PSS, SSS, and PBCH, or a portion of PSS, SSS, and PBCH. This solution enables a flexible SSB transmission mechanism between network devices and terminal devices, reducing energy consumption when network devices send SSBs and terminal devices detect SSBs, thereby improving the energy-saving effect of the system. Attached Figure Description

[0024] Figure 1A is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0025] Figure 1B is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0026] Figure 1C is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0027] Figure 2 is a resource diagram of an SSB involved in this application;

[0028] Figure 3 is a flowchart of a wireless communication method provided in an embodiment of this application;

[0029] Figure 4 is a flowchart of a wireless communication method provided in an embodiment of this application;

[0030] Figure 5 is a schematic diagram of SSB transmission according to an embodiment of this application;

[0031] Figure 6 is a flowchart of a wireless communication method provided in an embodiment of this application;

[0032] Figure 7 is a schematic diagram of a synchronization signal block according to an embodiment of this application;

[0033] Figure 8 is a schematic diagram of the time-domain distribution of a receiving timing according to an embodiment of this application;

[0034] Figure 9 is a schematic diagram of a synchronization signal block according to an embodiment of this application;

[0035] Figure 10 is a schematic diagram of a synchronization signal block according to an embodiment of this application;

[0036] Figure 11 is a schematic diagram of a synchronization signal block according to an embodiment of this application;

[0037] Figure 12 is a schematic diagram of a synchronization signal block according to an embodiment of this application;

[0038] Figure 13 is a schematic diagram of a synchronization signal block according to an embodiment of this application;

[0039] Figure 14 is a block diagram of a wireless communication device provided in an embodiment of this application;

[0040] Figure 15 is a block diagram of a wireless communication device provided in an embodiment of this application;

[0041] Figure 16 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0043] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0044] 1) Communication system scenario

[0045] Communication system scenarios can include terrestrial networks (TN) and non-terrestrial networks (NTN). NTN typically uses satellite communication to provide services to terrestrial users. Current NTN systems include New Radio (NR)-NTN and Internet of Things (IoT)-NTN systems, and other NTN systems may be included in the future.

[0046] For example, Figure 1A is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. As shown in Figure 1A, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal device, terminal device). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0047] Figure 1A exemplarily illustrates a network device and two terminal devices. In some embodiments, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit this.

[0048] For example, Figure 1B is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 1B, it includes a terminal device 120 and a satellite 130, which can communicate wirelessly. The network formed between the terminal device 120 and the satellite 130 can also be called an NTN. In the communication system architecture shown in Figure 1B, the satellite 130 can function as a base station, and the terminal device 120 and the satellite 130 can communicate directly. In this system architecture, the satellite 130 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices, and the coverage area of ​​each network device may include other numbers of terminal devices; this application does not limit this aspect.

[0049] For example, Figure 1C is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 1C, it includes a terminal device 120, a satellite 130, and a base station 140. Wireless communication is possible between the terminal device 120 and the satellite 130, and communication is possible between the satellite 130 and the base station 140. The network formed between the terminal device 120, the satellite 130, and the base station 140 can also be called an NTN. In the architecture of the communication system shown in Figure 1C, the satellite 130 may not have the function of a base station, and communication between the terminal device 120 and the base station 140 needs to be relayed through the satellite 130. In this system architecture, the base station 140 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices, and the coverage area of ​​each network device may include other numbers of terminal devices; this application does not limit this.

[0050] In future communication systems such as Beyond Fifth Generation (B5G) and 6th Generation (6G), there may also be Distributed Multiple-In Multiple-Out (DMIMO, also known as distributed antenna systems) and / or Massive Multiple-In Multiple-Out (MMIMO, also known as massive antenna matrix systems) scenarios. In some cases, Distributed MIMO and / or Massive MIMO may also support cell-free or UE-centric network deployment scenarios. It should be understood that the above scenarios also apply to TN and / or NTN.

[0051] 2) Time-frequency structure of SSB

[0052] Please refer to Figure 2, which shows a resource diagram of an SSB involved in this application. As shown in Figure 2, in the time domain, one SSB contains four Orthogonal Frequency Division Multiplexing (OFDM) symbols, which are numbered in ascending order from 0 to 3 within the SSB. The PSS, SSS, PBCH, and associated Demodulation Reference Signal (DMRS) are mapped to the symbols according to Table 1.

[0053] Table 1

[0054] In the frequency domain, one SSB contains 240 consecutive subcarriers, numbered in ascending order from 0 to 239 within the SSB. In Table 1 above, k and l represent the frequency domain and time domain indices within one SSB, respectively. The terminal device can assume that the complex value corresponding to the resource element (RE) "set to 0" in Table 1 is 0.

[0055] 3) Neighborhood search

[0056] Cell search is the process by which a terminal device obtains cell time-frequency synchronization and detects the physical layer cell ID. The terminal device receives the PSS and SSS to perform cell search. The terminal device assumes that the PBCH, PSS, and SSS are received in consecutive symbols to form one SSB.

[0057] In some embodiments, for a half-frame carrying an SSB, the index of the first symbol of the candidate SSB is determined according to the subcarrier spacing (SCS) of the SSB, where index 0 corresponds to the first symbol of the first slot within the half-frame, as follows:

[0058] Pattern A-15kHz SCS: The first symbol index of the candidate SSB is {2,8}+14·n. When the carrier frequency is less than or equal to 3GHz, n=0,1; when the carrier frequency in FR1 (Frequency1) is greater than 3GHz, n=0,1,2,3.

[0059] Pattern B-30kHz SCS: The first symbol index of the candidate SSB is {4,8,16,20}+28·n. When the carrier frequency is less than or equal to 3GHz, n=0; when the carrier frequency in FR1 is greater than 3GHz, n=0,1.

[0060] Pattern C-30kHz SCS: The first symbol index of the candidate SSB is {2,8}+14·n.

[0061] In diagram C, for paired spectrum, when the carrier frequency is less than or equal to 3 GHz, n = 0, 1; when the carrier frequency in FR1 is greater than 3 GHz, n = 0, 1, 2, 3.

[0062] In diagram C, for unpaired spectrum, when the carrier frequency is less than or equal to 1.88 GHz, n = 0, 1; when the carrier frequency in FR1 is greater than 1.88 GHz, n = 0, 1, 2, 3.

[0063] Pattern D-120kHz: The first symbol index of the candidate SSB is {4,8,16,20}+28·n. For carrier frequencies within FR2, n=0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18.

[0064] Pattern E-240kHz: The first symbol index of the candidate SSB is {8,12,16,20,32,36,40,44}+28·n. For carrier frequencies within FR2-1, n=0,1,2,3,5,6,7,8.

[0065] Candidate SSBs within a half-frame, ranging from 0 to L in the time domain max -1 ascending index. For L max =4 or L max >4. The terminal device determines the 2 least significant bits (LSB) or 3 LSB bits of the candidate SSB index within a half-frame based on the one-to-one mapping of the index of the DMRS sequence transmitted by PBCH. For L max =64, terminal device according to PBCH information bits Determine the 3 most significant bits (MSB) of the candidate SSB index.

[0066] In the above scheme, the distance between different candidate SSBs exceeds one OFDM symbol, and the PSS, SSS and PBCH in the SSB are transmitted as a whole. This requires the network device to send the SSB on multiple OFDM symbols, which leads to a significant increase in network energy consumption. How to reduce the time domain resources occupied by the SSB, thereby reducing the energy consumption of the network device in sending the SSB, is an urgent problem to be solved.

[0067] Please refer to Figure 3, which shows a flowchart of a wireless communication method provided in an embodiment of this application. This method can be executed by a terminal device, wherein the terminal device can be terminal device 120 in the aforementioned network architecture, or a terminal device in other network architectures; this application is not limited in this regard. The method may include at least some of the following steps:

[0068] Step 310: Receive a synchronization signal block SSB at the first reception opportunity within the first period. The SSB includes one or more of the primary synchronization signal PSS, secondary synchronization signal SSS, and physical broadcast channel PBCH. The first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

[0069] In some embodiments, the aforementioned candidate SSB refers to the transmission resources or transmission opportunities in which the network device may send an SSB; or, in other words, the aforementioned candidate SSB refers to the SSB that the network device may send. In some embodiments, the network device sends an SSB within all or part of the transmission resources or transmission opportunities corresponding to the candidate SSBs in the first period.

[0070] In this embodiment, the SSB received by the terminal device may contain all of the contents of PSS, SSS, and PBCH, or it may contain one or two of PSS, SSS, and PBCH. Alternatively, the SSB sent by the network device does not necessarily carry all of the contents of PSS, SSS, and PBCH.

[0071] In some embodiments, the SSB sent by the network device and / or the SSB received by the terminal device includes a PSS.

[0072] In some embodiments, the SSB sent by the network device and / or the SSB received by the terminal device contains an SSS.

[0073] In some embodiments, the SSB sent by the network device and / or the SSB received by the terminal device includes a PBCH.

[0074] In some embodiments, the SSB sent by the network device and / or the SSB received by the terminal device includes the PSS and the SSS.

[0075] In some embodiments, the SSB sent by the network device and / or the SSB received by the terminal device includes the PSS and PBCH.

[0076] In some embodiments, the SSB sent by the network device and / or the SSB received by the terminal device includes an SSS and a PBCH.

[0077] In some embodiments, the SSB sent by the network device and / or the SSB received by the terminal device includes PSS, SSS, and PBCH.

[0078] In some embodiments, during certain time periods, the SSB sent by the network device and the SSB received by the terminal device contain the full contents of PSS, SSS, and PBCH; during other time periods, the candidate SSB sent by the network device and the SSB received by the terminal device contain partial contents of PSS, SSS, and PBCH.

[0079] In some embodiments, when the SSB sent by the network device and the SSB received by the terminal device contain PSS, SSS and PBCH, the resources of PSS, SSS and PBCH in the SSB sent by the network device and the SSB received by the terminal device can be as shown in Figure 1 and Table 1.

[0080] In some embodiments, when the SSB sent by the network device and the SSB received by the terminal device contain PSS, SSS and PBCH, the resources corresponding to PSS, SSS and PBCH in the SSB sent by the network device and the SSB received by the terminal device may be different from the resources corresponding to PSS, SSS and PBCH in Figure 1 and Table 1.

[0081] The solution provided in this application embodiment allows the SSB received by the terminal device to include one or more of the primary synchronization signal PSS, secondary synchronization signal SSS, and physical broadcast channel PBCH. In other words, the SSB can include PSS, SSS, and PBCH, or a portion of PSS, SSS, and PBCH. This solution enables a flexible SSB transmission mechanism between network devices and terminal devices, reducing energy consumption when network devices send SSBs and terminal devices detect SSBs, thereby improving the energy-saving effect of the system.

[0082] Please refer to Figure 4, which shows a flowchart of a wireless communication method provided in an embodiment of this application. This method can be executed by a network device, wherein the network device can be network device 110, satellite 130, or base station 140 in the aforementioned network architecture, or other communication devices; this application is not limited in this regard. The method may include at least some of the following steps:

[0083] Step 410: Send an SSB at the first reception opportunity within the first period so that the terminal device can receive the SSB at the first reception opportunity. The SSB includes one or more of PSS, SSS, and PBCH. The first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

[0084] The solution provided in this application embodiment allows the SSB received by the terminal device to include one or more of the primary synchronization signal PSS, secondary synchronization signal SSS, and physical broadcast channel PBCH. In other words, the SSB can include PSS, SSS, and PBCH, or a portion of PSS, SSS, and PBCH. This solution enables a flexible SSB transmission mechanism between network devices and terminal devices, reducing energy consumption when network devices send SSBs and terminal devices detect SSBs, thereby improving the energy-saving effect of the system.

[0085] Based on the schemes shown in Figures 3 and 4, please refer to Figure 5, which shows a schematic diagram of SSB transmission according to an embodiment of this application.

[0086] As shown in part (a) of Figure 5, during the first time period, base station 510 (network device) broadcasts a first type of SSB, which includes PSS, SSS and PBCH, and the resources of PSS, SSS and PBCH in the SSB can be referred to Figure 1 and Table 1; accordingly, terminal device 520 receives the SSB containing PSS, SSS and PBCH.

[0087] As shown in part (b) of Figure 5, during the second time period, base station 510 broadcasts a second type of SSB, which includes a PSS, or includes both PSS and SSS, or includes PSS, SSS and PBCH; when the SSB includes PSS, SSS and PBCH, the resources corresponding to PSS, SSS and PBCH may be different from those shown in Figure 1 and Table 1; accordingly, terminal device 520 receives the SSB containing all or part of the contents of PSS, SSS and PBCH.

[0088] Based on the schemes shown in Figures 3 and 4, please refer to Figure 6, which illustrates a flowchart of a wireless communication method provided in an embodiment of this application. This method can be interactively executed by a terminal device and a network device. The terminal device can be terminal device 120 in the aforementioned network architecture, or other communication devices. The network device can be network device 110, satellite 130, or base station 140 in the aforementioned network architecture, or other communication devices. This method may include at least some of the following steps:

[0089] Step 610: The network device sends an SSB at the first reception time within the first cycle; correspondingly, the terminal device receives the SSB at the first reception time; the SSB includes one or more of PSS, SSS and PBCH.

[0090] In the embodiments of this application, the first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

[0091] In some embodiments, the first reception timing described above is one of at least one reception timing within a first period.

[0092] The SSB received by the aforementioned terminal device is the candidate SSB corresponding to the first reception timing.

[0093] In some embodiments, the terminal device receives a first synchronization signal block SSB at a first reception time within a first cycle. The first SSB includes one or more of PSS, SSS, and PBCH. There is at least one first reception time within the first cycle, and different reception times within the first cycle correspond to their respective candidate SSBs.

[0094] For example, please refer to Figure 7, which shows a schematic diagram of a synchronization signal block according to an embodiment of this application. As shown in Figure 7, assuming the first period is 20ms, and there are four reception opportunities in time slots #0 and #1 within 20ms, located at symbols #2-5 and #8-11 of time slots #0 and #1 respectively, the terminal device receives the SSB at the four reception opportunities with a period of 20ms, and the SSB includes one or more of PSS, SSS, and PBCH. Furthermore, in order to distinguish the different reception opportunities within the first period, the four first reception opportunities within the first period correspond to four different candidate SSBs, namely candidate SSBs #0-3.

[0095] In this embodiment of the application, after the terminal device receives the SSB, it can also perform subsequent steps 620 based on the received SSB.

[0096] Step 620: The terminal device performs cell search, cell synchronization, and / or cell measurement based on the received SSB.

[0097] In some embodiments, if the received SSB contains a PSS and / or an SSS, the terminal device may perform cell search and cell synchronization.

[0098] In some embodiments, if the terminal device receives a PBCH contained in the SSB, it can perform cell measurement.

[0099] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the first period includes a first time period and a second time period, and the at least one receiving opportunity is located within the first time period.

[0100] In this embodiment of the application, the reception timing corresponding to each candidate SSB can be set within a time period of the first cycle. That is, the network device can send the SSB within a part of the transmission cycle of an SSB (i.e., the first cycle mentioned above), and may not send the SSB during other time periods within the transmission cycle.

[0101] For example, please refer to Figure 8, which shows a time-domain distribution diagram of a reception timing according to an embodiment of this application. As shown in Figure 8, the first period includes a first time period and a second time period. The first period contains four reception timings, and all four reception timings are located within the first time period. There are no reception timings within the second time period. Within the first period, the network device transmits SSBs in all or part of the four reception timings within the first time period, and does not transmit SSBs in the second time period.

[0102] In the scheme shown in the embodiments of this application, the network device transmits SSBs during a portion of the transmission cycle of an SSB, and does not transmit SSBs during other time periods. This can improve the energy-saving effect of the network device. For example, the network device can enter an energy-saving state during the time periods when it does not transmit SSBs, thereby reducing the power consumption of the network device.

[0103] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes PSS, SSS and PBCH, two adjacent candidate SSBs are spaced apart by a first number of OFDM symbols in the time domain.

[0104] In some embodiments, the time-domain interval between two adjacent candidate SSBs may refer to the interval between the time-domain start positions of two adjacent candidate SSBs.

[0105] In some embodiments, the time-domain interval between two adjacent candidate SSBs may refer to the interval between the time-domain end positions of two adjacent candidate SSBs.

[0106] In some embodiments, when the terminal device receives an SSB (e.g., the terminal device receives a first SSB), and the first SSB includes a first PSS, a first SSS, and a first PBCH, the different candidate SSBs are spaced apart by a first number of OFDM symbols, where the first number is a positive integer greater than or equal to 1.

[0107] In this embodiment of the application, by limiting the number of symbols between two adjacent candidate SSBs in the time domain, the reception time of candidate SSBs can be concentrated as much as possible within a certain time period of the first period, while no SSBs need to be sent during the remaining time periods of the first period, thereby improving the energy-saving effect of the network device.

[0108] For example, please refer to Figure 9, which shows a schematic diagram of a synchronization signal block according to an embodiment of this application. As shown in Figure 9, an SSB includes a PSS, an SSS, and a PBCH, and one SSB contains four OFDM symbols (the structure of the SSB can be as shown in Figure 1). The interval between the time domain start positions of two adjacent candidate SSBs is four OFDM symbols. At this time, candidate SSBs #0-3 are located at symbols #0-3, #4-7, and #8-11 of time slot #0 and symbols #12-13 of time slot #0 to symbol #0-1 of time slot #1, respectively. The terminal device receives SSBs on symbols #0 of time slot #0 to symbol #1 of time slot #1 to perform cell search. At this time, the network device can transmit SSBs on continuous time domain resources, so that the network can be in an energy-saving state outside of candidate SSB times, thereby effectively reducing network energy consumption.

[0109] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes both PSS and SSS, a second number of OFDM symbols are spaced in the time domain between two adjacent candidate SSBs.

[0110] In some embodiments, when the terminal device receives an SSB (e.g., the terminal device receives a first SSB), and the first SSB includes a second PSS and a second SSS, the different candidate SSBs are spaced apart by a second number of OFDM symbols, where the second number is a positive integer greater than or equal to 1.

[0111] In the embodiments of this application, when the SSB includes both PSS and SSS, by limiting the number of symbols between two adjacent candidate SSBs in the time domain, the reception timing of the candidate SSB can be concentrated as much as possible within a certain time period of the first cycle, while the SSB can be not sent during the remaining time period of the first cycle, thereby improving the energy-saving effect of the network device.

[0112] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes PSS and SSS, the PSS and SSS in the SSB are spaced apart by a third number of OFDM symbols in the time domain.

[0113] In some embodiments, the time-domain interval between the PSS and SSS in the SSB can refer to the interval between the respective time-domain start positions of the PSS and SSS in the SSB.

[0114] In some embodiments, the time-domain interval between the PSS and SSS in the SSB can refer to the interval between the respective time-domain end positions of the PSS and SSS in the SSB.

[0115] In some embodiments, the second PSS and the second SSS within the first SSB are spaced by a third number of OFDM symbols, where the third number is a positive integer greater than or equal to 1.

[0116] In the embodiments of this application, when the SSB includes PSS and SSS, by limiting the number of symbols that the PSS and SSS in the SSB are spaced apart in the time domain, the PSS and SSS in the candidate SSB can be concentrated as much as possible, so that the reception time of the candidate SSB is concentrated as much as possible in a part of the first period, while the SSB can be not sent in the other part of the first period, thereby improving the energy saving effect of the network device.

[0117] In some embodiments, if the SSB includes both PSS and SSS, and the third quantity mentioned above is greater than or equal to 2, the OFDM symbol between the PSS and SSS is not used to transmit the SSB.

[0118] Wherein, if the SSB includes both PSS and SSS, and the aforementioned third quantity is greater than or equal to 2, other OFDM symbols may be included between the time-domain end position of the PSS and the start and end positions of the SSS. In this case, the other OFDM symbols between the time-domain end position of the PSS and the start and end positions of the SSS are not used to transmit the SSB (that is, they are not used to transmit the PSS and / or SSS). Optionally, the other OFDM symbols between the time-domain end position of the PSS and the start and end positions of the SSS are used to transmit other signals besides the SSB, such as uplink / downlink data or control signals.

[0119] For example, please refer to Figure 10, which shows a schematic diagram of a synchronization signal block according to an embodiment of this application. As shown in Figure 10, an SSB contains a PSS and an SSS, and one SSB contains two OFDM symbols (for example, the PSS and SSS contained in an SSB are located in consecutive OFDM symbols). The interval between the time domain start positions of two adjacent candidate SSBs is two OFDM symbols, and the PSS and SSS in an SSB are separated by one OFDM symbol in the time domain. At this time, candidate SSBs #0-3 are located in symbols #0-1, #2-3, #4-5, and #6-7 of time slot #0, respectively. The terminal device receives the SSB on symbols #0-7 of time slot #0 to perform cell search. In this case, the network device can send SSBs on fewer and more consecutive time domain resources, allowing the network device to remain in an energy-saving state for a longer period of time, thereby effectively reducing network energy consumption. Furthermore, the terminal device only needs to detect the PSS and SSS when receiving the SSB, thereby effectively reducing the complexity and energy consumption of the terminal device in detecting the SSB.

[0120] For example, please refer to Figure 11, which shows a schematic diagram of a synchronization signal block according to an embodiment of this application; as shown in Figure 11, the SSB includes the PSS and SSS, and one SSB contains four OFDM symbols (for example, the first and third OFDM symbols contained in the SSB are used to transmit the PSS and SSS respectively, and the second and fourth OFDM symbols contained in the SSB are not used to transmit the SSB), the interval between the time domain start positions of two adjacent candidate SSBs is four OFDM symbols, and the SSB... The PSS and SSS in the time domain are separated by 2 OFDM symbols. At this time, the candidate SSBs #0-3 are located at symbols #0-3, #4-7, and #8-11 of time slot #0 and symbols #12-13 of time slot #0 to symbols #0-1 of time slot #1, respectively. The terminal device receives SSBs on symbols #0 of time slot #0 to symbols #1 of time slot #1 to perform cell search. In each SSB, only the PSS and SSS need to be detected, thereby effectively reducing the complexity and energy consumption of terminal detection of SSBs.

[0121] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes the PSS, the time domain is spaced by a fourth number of OFDM symbols between two adjacent candidate SSBs.

[0122] In some embodiments, when the terminal device receives an SSB (e.g., the terminal device receives a first SSB) and the first SSB contains a third PSS, the different candidate SSBs are spaced a fourth number of OFDM symbols, where the fourth number is a positive integer greater than or equal to 1.

[0123] In the embodiments of this application, when the SSB includes the PSS, by limiting the number of symbols between two adjacent candidate SSBs in the time domain, the reception timing of the candidate SSB can be concentrated as much as possible within a certain time period of the first period, while the SSB can be not sent during the remaining time period of the first period, thereby improving the energy-saving effect of the network device.

[0124] For example, please refer to Figure 12, which shows a schematic diagram of a synchronization signal block according to an embodiment of this application. As shown in Figure 12, the SSB only contains the PSS, and one SSB occupies only one OFDM symbol. The interval between the time domain start positions of two adjacent candidate SSBs is one OFDM symbol. At this time, candidate SSBs #0-3 are located in symbols #0-3 of time slot #0, respectively. Then, the terminal device receives SSBs on symbols #0-3 of time slot #0 to perform cell search. In this case, the network device transmits SSBs on fewer and more continuous time domain resources, so that the network can be in an energy-saving state for a longer time, thereby effectively reducing network energy consumption. Moreover, the terminal device only needs to detect the PSS when receiving SSBs, thereby effectively reducing the complexity and energy consumption of terminal SSB detection.

[0125] For example, please refer to Figure 13, which shows a schematic diagram of a synchronization signal block according to an embodiment of this application. As shown in Figure 13, the SSB contains only the PSS, and one SSB contains four OFDM symbols (e.g., the first OFDM symbol in the SSB is used to transmit the PSS, and the second, third, and fourth OFDM symbols in the SSB are not used for transmission). The interval between the time domain start positions of two adjacent candidate SSBs is four OFDM symbols. At this time, candidate SSBs #0-3 are located at symbols #0-3, #4-7, and #8-11 of time slot #0 and symbols #12-13 of time slot #0 to symbols #0-1 of time slot #1, respectively. Then, the terminal device receives SSBs on symbols #0 of time slot #0 to symbols #1 of time slot #1 to perform cell search, and only needs to detect the PSS in each SSB, thereby effectively reducing the complexity and energy consumption of terminal detection of SSBs.

[0126] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the PSS, SSS or PBCH in the SSB.

[0127] In some embodiments, the candidate SSB pattern can be used to indicate the symbol index corresponding to the candidate SSB. For example, in Table 1, the first symbol index of the candidate SSB is {2,8}+14·n.

[0128] In some embodiments, the SSB structure can be used to indicate the composition of the SSB, for example, indicating that the SSB contains one or more of PSS, SSS, and PBCH.

[0129] Since the solution shown in this application involves improvements to the candidate SSB pattern and / or SSB structure, in order to facilitate the terminal device to clearly identify the candidate SSB pattern and / or SSB structure corresponding to the received SSB, in the embodiments of this application, the candidate SSB pattern and / or SSB structure corresponding to the SSB can be indicated by the SSB; for example, the candidate SSB pattern and / or SSB structure corresponding to the SSB can be associated with the PSS, SSS, or PBCH in the SSB.

[0130] The aforementioned candidate SSB pattern and / or the structure corresponding to the SSB are associated with the PSS, SSS, or PBCH in the SSB. This can mean that the PSS, SSS, or PBCH in the SSB indicates the candidate SSB pattern and / or SSB structure corresponding to the SSB in an explicit or implicit manner.

[0131] In some embodiments, the PSS, SSS, or PBCH in the SSB explicitly indicates the candidate SSB pattern and / or SSB structure corresponding to the SSB, meaning that the PSS, SSS, or PBCH in the SSB carries indicator bits for the candidate SSB pattern and / or SSB structure corresponding to the SSB.

[0132] In some embodiments, the PSS, SSS, or PBCH in an SSB implicitly indicate the candidate SSB pattern and / or SSB structure corresponding to that SSB. This means that the information or transmission parameters (such as resource location, carried or used for scrambling, etc.) contained in the PSS, SSS, or PBCH of the SSB have a correspondence with the candidate SSB pattern and / or SSB structure corresponding to that SSB.

[0133] In the scheme shown in the embodiments of this application, the candidate SSB pattern and / or SSB structure corresponding to the SSB is indicated by the PSS, SSS or PBCH in the SSB. This enables the terminal device to clearly understand the information of the candidate SSB pattern and / or SSB structure corresponding to the currently received SSB. On the one hand, it can ensure the accuracy of the SSB received by the terminal device. On the other hand, it does not require the network device to specifically indicate the candidate SSB pattern and / or SSB structure to the terminal device through other signaling, thus saving the system's signaling resources.

[0134] In some embodiments, the candidate SSB pattern and / or SSB structure corresponding to the SSB sent by the network device are associated with the state / mode of the network device.

[0135] For example, network devices may have modes including power-saving mode (or non-working mode, etc.) and working mode (or non-power-saving mode, etc.); in power-saving mode, the SSB sent by the network device corresponds to a first pattern and / or a first structure; in working mode, the SSB sent by the network device corresponds to a second pattern and / or a second structure.

[0136] In some embodiments, if a network device sends an SSB based on different candidate SSB patterns under different states, such as sending an SSB based on the candidate SSB patterns shown in Figure 1 and Table 1 in the working mode, and sending an SSB based on any of the candidate SSB patterns in Figures 9 to 13 above in the power-saving mode (i.e., different candidate SSB intervals of a first number, a second number, or a fourth number of OFDM symbols), then the terminal device can be notified of the candidate SSB pattern currently used through the PSS, SSS, or PBCH in the SSB.

[0137] In some embodiments, if a network device sends an SSB based on different SSB structures in different states, such as sending an SSB based on the SSB structures shown in Figure 1 and Table 1 in working mode, and sending an SSB based on any of the SSB structures in Figures 10 to 13 above in power-saving mode (for example, the SSB may only contain PSS, or PSS and SSS), then the terminal device can be notified of the current SSB structure through PSS, SSS or PBCH in the SSB.

[0138] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes a PSS, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the first sequence corresponding to the PSS.

[0139] In some embodiments, when an SSB includes a PSS (not limited to PSS, but may also include an SSS and / or a PBCH), the PSS in the SSB may correspond to multiple different first sequences, and different first sequences may correspond to different candidate SSB patterns and / or SSB structures. The correspondence between the different first sequences and the different candidate SSB patterns and / or SSB structures can be predefined by the protocol. When a network device sends an SSB, it can determine the first sequence corresponding to the PSS in the SSB based on the candidate SSB pattern and / or SSB structure. Correspondingly, when a terminal device receives an SSB, it can first parse the first sequence corresponding to the PSS, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed first sequence corresponding to the PSS.

[0140] In the embodiments of this application, when the SSB includes a PSS, the network device can indicate the candidate SSB pattern and / or SSB structure through the first sequence corresponding to the PSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the first sequence corresponding to the PSS. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of system transmission of SSB.

[0141] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the following information of the first sequence: sequence index, cyclic shift index, or sequence initialization value.

[0142] In some embodiments, when an SSB includes a PSS (not limited to PSS, but may also include an SSS and / or a PBCH), the PSS in the SSB may correspond to multiple different first sequences, and the sequence index, cyclic shift index, or sequence initialization value of different first sequences may correspond to different candidate SSB patterns and / or SSB structures. The correspondence between the sequence index, cyclic shift index, or sequence initialization value of the first sequence and the candidate SSB pattern and / or SSB structure may be predefined by the protocol. When a network device sends an SSB, it can determine the sequence index, cyclic shift index, or sequence initialization value of the first sequence corresponding to the PSS in the SSB based on the candidate SSB pattern and / or SSB structure corresponding to the SSB to be sent. Correspondingly, when a terminal device receives an SSB, it can first parse the sequence index, cyclic shift index, or sequence initialization value of the first sequence corresponding to the PSS, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed sequence index, cyclic shift index, or sequence initialization value of the first sequence corresponding to the PSS.

[0143] In this embodiment of the application, when the SSB includes a PSS, the network device can indicate the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the first sequence corresponding to the PSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the first sequence corresponding to the PSS. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of system transmission of SSB.

[0144] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the first sequence includes an m-sequence for carrying the cell ID.

[0145] In some embodiments, the first sequence described above may include a sequence for carrying The m-sequence.

[0146] In some embodiments, when the SSB includes a PSS (not limited to PSS, but may also include SSS and / or PBCH), the PSS in the SSB may correspond to multiple different m-sequences for carrying cell IDs, and the sequence index, cyclic shift index, or sequence initialization value of the different m-sequences for carrying cell IDs may correspond to different candidate SSB patterns and / or SSB structures; wherein, the correspondence between the sequence index, cyclic shift index, or sequence initialization value of the m-sequences for carrying cell IDs and the candidate SSB patterns and / or SSB structures may be predefined by the protocol. When a network device sends an SSB, it can determine the sequence index, cyclic shift index, or sequence initialization value of the m-sequence used to carry the cell ID in the SSB based on the candidate SSB pattern and / or SSB structure. Correspondingly, when a terminal device receives an SSB, it can first parse the sequence index, cyclic shift index, or sequence initialization value of the m-sequence used to carry the cell ID in the PSS, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed sequence index, cyclic shift index, or sequence initialization value of the m-sequence used to carry the cell ID in the PSS.

[0147] In this embodiment of the application, when the SSB includes a PSS, the network device can indicate the candidate SSB pattern and / or SSB structure of the SSB through the sequence index, cyclic shift index, or sequence initialization value of the m-sequence used to carry the cell ID in the PSS. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure of the SSB through the sequence index, cyclic shift index, or sequence initialization value of the m-sequence used to carry the cell ID in the PSS. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of system transmission of SSB.

[0148] In some embodiments, the first PSS, second PSS, or third PSS in the first SSB corresponds to the first sequence index.

[0149] For example, a traditional SSB (such as the SSB corresponding to Figure 1 and Table 1 above) defines 1008 unique physical layer cell IDs: in It can be called Community ID1; This can be called cell ID2. The PSS uses three m-sequences of length 127 to carry... and The indices (or cyclic shift indices, or sequence initialization values) corresponding to sequence m are 0 / 43 / 86, as detailed below: d PSS (n) = 1 - 2x(m) 0≤n<127

[0150] Among them, x(i+7)=(x(i+4)+x(i))mod2, [x(6)x(5)x(4)x(3)x(2)x(1)x(0)]=[1 1 1 0 1 1 0].

[0151] Therefore, if a network device sends an SSB based on different candidate SSB patterns and / or different SSB structures under different states, it can notify the terminal device of the currently used candidate SSB pattern and / or SSB structure by using different m-sequence indices corresponding to the PSS. For example, the m-sequence index corresponding to the PSS sent by the network device in working mode is still one of 0 / 43 / 86, while the m-sequence index corresponding to the PSS sent in power-saving mode is a value other than 0 / 43 / 86, such as... That is, one of 21 / 64 / 107. In other words, as long as the m-sequence differs from the traditional (legacy) values ​​(0 / 43 / 86), the network device can be considered to be in power-saving mode. This embodiment uses three sequences (i.e., the aforementioned 21 / 64 / 107) to correspond one-to-one with the legacy values, so that different values ​​can be carried even in power-saving mode.

[0152] At this point, after receiving the PSS, the terminal device can determine the candidate SSB pattern and / or SSB structure currently used by the network device based on the detected m-sequence index, thereby receiving the SSB sent by the network device at the correct time and frequency position.

[0153] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes an SSS, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the second sequence corresponding to the SSS.

[0154] In some embodiments, when an SSB includes an SSS (not limited to SSS, but may also include PSS and / or PBCH), the SSS in the SSB may correspond to multiple different second sequences, and different second sequences may correspond to different candidate SSB patterns and / or SSB structures. The correspondence between the different second sequences and the different candidate SSB patterns and / or SSB structures can be predefined by the protocol. When a network device sends an SSB, it can determine the second sequence corresponding to the SSS in the SSB based on the candidate SSB pattern and / or SSB structure corresponding to the SSB. Correspondingly, when a terminal device receives an SSB, it can first parse the second sequence corresponding to the SSS, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed second sequence.

[0155] In the embodiments of this application, when an SSB contains an SSS, the network device can indicate the candidate SSB pattern and / or SSB structure corresponding to the SSB through the second sequence corresponding to the SSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the second sequence corresponding to the SSS. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of system transmission of SSB.

[0156] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the candidate SSB pattern and / or SSB structure are associated with the following information of the second sequence: sequence index, cyclic shift index, or sequence initialization value.

[0157] In some embodiments, when an SSB includes an SSS (not limited to SSS, but may also include PSS and / or PBCH), the SSS in the SSB may correspond to multiple different second sequences, and the sequence index, cyclic shift index, or sequence initialization value of different second sequences may correspond to different candidate SSB patterns and / or SSB structures. The correspondence between the sequence index, cyclic shift index, or sequence initialization value of the aforementioned second sequence and the candidate SSB pattern and / or SSB structure may be predefined by the protocol. When a network device sends an SSB, it can determine the sequence index, cyclic shift index, or sequence initialization value of the second sequence corresponding to the SSS in the SSB based on the candidate SSB pattern and / or SSB structure corresponding to the SSB. Correspondingly, when a terminal device receives an SSB, it can first parse the sequence index, cyclic shift index, or sequence initialization value of the second sequence corresponding to the SSS, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed sequence index, cyclic shift index, or sequence initialization value of the second sequence corresponding to the SSS.

[0158] In this embodiment of the application, when the SSB includes a PSS, the network device can indicate the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the second sequence corresponding to the SSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the second sequence corresponding to the SSS. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of system transmission of SSB.

[0159] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the second sequence includes a gold sequence for carrying the cell ID.

[0160] In some embodiments, the second sequence described above may include a sequence for carrying The gold sequence.

[0161] In some embodiments, when an SSB includes an SSS (not limited to SSS, but may also include a PSS and / or PBCH), the SSS in the SSB may correspond to multiple different gold sequences for carrying cell IDs, and the sequence index, cyclic shift index, or sequence initialization value of different gold sequences for carrying cell IDs may correspond to different candidate SSB patterns and / or SSB structures; wherein, the correspondence between the sequence index, cyclic shift index, or sequence initialization value of the gold sequence for carrying cell IDs and the candidate SSB patterns and / or SSB structures may be predefined by the protocol. When a network device sends an SSB, it can determine the sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to carry the cell ID in the SSB based on the candidate SSB pattern and / or SSB structure corresponding to the SSB. Correspondingly, when a terminal device receives an SSB, it can first parse the sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to carry the cell ID in the SSS, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to carry the cell ID in the SSS.

[0162] In this embodiment of the application, when an SSB contains an SSS, the network device can indicate the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to carry the cell ID in the SSS. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to carry the cell ID in the SSS. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of system transmission of SSB.

[0163] In some embodiments, the first SSS or the second SSS in the first SSB corresponds to the second sequence index.

[0164] For example, in a traditional SSB (such as the SSB corresponding to Figure 1 and Table 1 above), the SSS uses 336 gold sequences of length 127 to carry... Specifically as follows: d SSS (n)=[1-2x0((n+m0)mod127)][1-2x1((n+m1)mod127)] 0≤n<127

[0165] Where x0(i+7)=(x0(i+4)+x0(i))mod 2, x1(i+7)=(x1(i+1)+x1(i))mod 2, [x0(6)x0(5)x0(4)x0(3)x0(2)x0(1)x0(0)]=[0 0 0 0 0 0 1], [x1(6)x1(5)x1(4)x1(3)x1(2)x1(1)x1(0)]=[0 0 0 0 0 0 1].

[0166] Therefore, if a network device sends an SSB based on different candidate SSB patterns and / or different SSB structures under different states, it can notify the terminal device of the currently used candidate SSB pattern and / or SSB structure by using the different gold sequence indices (or cyclic shift indices, or sequence initialization values) corresponding to the SSS. For example, the gold sequence index corresponding to the SSS sent by the network device in the working mode is based on... It is confirmed that the gold sequence index corresponding to the SSS sent in energy-saving mode is based on... Sure.

[0167] At this point, the terminal device can still detect the PSS using the preset m-sequence index in the traditional SSB reception scheme, without needing to modify the PSS detection method, thus maintaining a low PSS detection complexity. Furthermore, after receiving the SSS, the terminal device determines the candidate SSB pattern and / or SSB structure currently used by the network device based on the detected gold sequence index, thereby receiving the SSB sent by the network device at the correct time-frequency location. Specifically, the detection complexity of the PSS is often higher than that of the SSS. If the network device's mode (i.e., the aforementioned candidate SSB pattern and / or SSB structure) is implicitly or explicitly indicated in the PSS, the terminal's PSS detection complexity will significantly increase. Therefore, the scheme shown in this application, which implicitly indicates the power-saving mode information through the gold sequence in the SSS, can reduce the terminal's detection complexity to a certain extent.

[0168] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes the PBCH, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the third sequence corresponding to the DMRS of the PBCH.

[0169] In some embodiments, when an SSB includes a PBCH (not limited to PBCH, but may also include an SSS and / or PSS), the DMRS of the PBCH in the SSB can correspond to multiple different third sequences, and different third sequences correspond to different candidate SSB patterns and / or SSB structures. The correspondence between the different third sequences and the different candidate SSB patterns and / or SSB structures can be predefined by the protocol. When a network device sends an SSB, it can determine the third sequence corresponding to the DMRS of the PBCH in the SSB based on the candidate SSB pattern and / or SSB structure corresponding to the SSB. Correspondingly, when a terminal device receives an SSB, it can first parse the third sequence corresponding to the DMRS of the PBCH, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed third sequence.

[0170] In this embodiment of the application, when the SSB includes a PBCH, the network device can indicate the candidate SSB pattern and / or SSB structure corresponding to the SSB through the third sequence corresponding to the DMRS of the PBCH in the SSB. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the third sequence corresponding to the DMRS of the PBCH. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of the system transmitting SSBs.

[0171] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the pattern and / or structure of the SSB is associated with the following information of the third sequence:

[0172] Sequence index, circular shift index, or sequence initialization value.

[0173] In some embodiments, when an SSB includes a PBCH (not limited to PBCH, but may also include an SSS and / or a PSS), the DMRS of the PBCH in the SSB can correspond to multiple different third sequences. Furthermore, the sequence index, cyclic shift index, or sequence initialization value of different third sequences corresponds to different candidate SSB patterns and / or SSB structures. The correspondence between the sequence index, cyclic shift index, or sequence initialization value of the aforementioned third sequence and the candidate SSB patterns and / or SSB structures can be predefined by the protocol. When a network device sends an SSB, it can determine the sequence index, cyclic shift index, or sequence initialization value of the third sequence corresponding to the DMRS of the PBCH in the SSB based on the candidate SSB pattern and / or SSB structure corresponding to the SSB. Correspondingly, when a terminal device receives an SSB, it can first parse the sequence index, cyclic shift index, or sequence initialization value of the third sequence corresponding to the DMRS of the PBCH, and then determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed sequence index, cyclic shift index, or sequence initialization value of the third sequence.

[0174] In this embodiment of the application, when the SSB includes a PSS, the network device can indicate the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the third sequence corresponding to the DMRS of the PBCH in the SSB. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the third sequence corresponding to the DMRS of the PBCH. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of system transmission of SSB.

[0175] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the third sequence includes a gold sequence for generating a pseudo-random sequence.

[0176] In some embodiments, when the SSB includes a PBCH (not limited to PBCH, but may also include SSS and / or PSS), the DMRS of the PBCH in the SSB can correspond to multiple different gold sequences used to generate pseudo-random sequences. Furthermore, the sequence index, cyclic shift index, or sequence initialization value of the different gold sequences used to generate pseudo-random sequences correspond to different candidate SSB patterns and / or SSB structures. The correspondence between the sequence index, cyclic shift index, or sequence initialization value of the gold sequences used to generate pseudo-random sequences and the candidate SSB patterns and / or SSB structures can be predefined by the protocol. When a network device sends an SSB, it can determine the sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to generate the pseudo-random sequence in the DMRS of the PBCH in the SSB based on the candidate SSB pattern and / or SSB structure corresponding to the SSB. Correspondingly, when a terminal device receives an SSB, it can first parse the sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to generate the pseudo-random sequence in the DMRS of the PBCH, and determine the candidate SSB pattern and / or SSB structure corresponding to the SSB based on the parsed sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to generate the pseudo-random sequence in the DMRS of the PBCH.

[0177] In this embodiment of the application, when the SSB includes a PBCH, the network device can indicate the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the gold sequence used to generate the pseudo-random sequence in the DMRS of the PBCH in the SSB. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the SSB through the sequence index, cyclic shift index, or sequence initialization value of the gold sequence. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or SSB structure, which can simplify the complexity of the system transmitting SSBs.

[0178] In some embodiments, the DMRS of the first PBCH in the first SSB corresponds to the third sequence index.

[0179] For example, in a traditional SSB (such as the SSB corresponding to Figure 1 and Table 1 above), the DMRS of PBCH uses a pseudo-random sequence c(n) generated based on a Gold sequence of length 31, as follows:

[0180] The initial value of the scrambling sequence of c(n) is... Determined based on candidate SSB index.

[0181] Therefore, if a network device sends SSBs based on different candidate SSB patterns and / or different SSB structures under different states, it can notify the terminal device of the currently used candidate SSB pattern and / or SSB structure by using different gold sequence initialization values ​​corresponding to the DMRS of the PBCH. For example, the gold sequence initialization value corresponding to the PBCH DMRS sent by the network device in operating mode is based on... It is determined that the initialization value of the gold sequence corresponding to the PBCH DMRS transmitted in power-saving mode is based on... Sure.

[0182] At this point, the terminal device can detect the PSS and SSS according to the preset sequence index in the traditional SSS reception scheme, thereby maintaining low PSS and SSS detection complexity. Furthermore, after receiving the DMRS from the PBCH, the terminal device determines the candidate SSS pattern and / or SSS structure currently used by the network device based on the detected sequence initialization value, thus receiving the SSS sent by the network device at the correct time-frequency location.

[0183] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes the PBCH, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the first information carried by the PBCH.

[0184] In some embodiments, the first PBCH carries first information, which is used to indicate that the synchronization signal block where the first PBCH is located is the first synchronization signal block.

[0185] For example, if a network device sends SSBs based on different candidate SSB patterns and / or different SSB structures under different states, it can use 1 bit in the PBCH to indicate to the terminal device the currently used candidate SSB pattern and / or SSB structure. For example, when this bit is '0', it indicates that the current SSB is sent based on the candidate SSB pattern and / or SSB structure corresponding to the operating mode; when this bit is '1', it indicates that the current SSB is sent based on the candidate SSB pattern and / or SSB structure corresponding to the power-saving mode.

[0186] At this point, the terminal device can still detect the DMRS of PSS, SSS, and PBCH according to the preset sequence index in the traditional SSB reception scheme, thereby maintaining a low complexity in PSS, SSS, and PBCH DMRS detection. Furthermore, after receiving the PBCH, the terminal device determines the candidate SSB pattern and / or SSB structure currently used by the network device based on the bit values ​​of the first information carried by the PBCH, thus receiving the SSB sent by the network device at the correct time-frequency location.

[0187] In the embodiments of this application, when the SSB includes a PBCH, the network device can indicate the candidate SSB pattern and / or SSB structure through the bits in the PBCH. Correspondingly, the terminal device can determine the candidate SSB pattern and / or SSB structure corresponding to the currently received SSB through the bits in the PBCH. This scheme does not require setting additional information to indicate the candidate SSB pattern and / or structure, which can simplify the complexity of system transmission of SSB.

[0188] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the candidate SSBs in the first period correspond to their respective candidate SSB indices.

[0189] In some embodiments, the first candidate synchronization signal block within the first period corresponds to a unique candidate synchronization signal block index. As one possible implementation, the candidate synchronization signal block indices corresponding to the candidate synchronization signal blocks within the first period are numbered in ascending order starting from 0 in the time domain.

[0190] For example, taking Figure 9 as an example, assuming the first period is 20ms, and there are 4 candidate SSBs in time slots #0 and #1 within 20ms, located at symbols #0-3, #4-7, and #8-11 of time slot #0 and symbols #12-13 of time slot #0 to symbol #0-1 of time slot #1 respectively, then these 4 candidate SSBs correspond to unique candidate SSB indices. If numbered in ascending order from 0 in the time domain, they correspond to candidate SSB#0, candidate SSB#1, candidate SSB#2, and candidate SSB#3 respectively.

[0191] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the index of the candidate SSB corresponding to the SSB is associated with the PSS, SSS and / or PBCH in the SSB.

[0192] In traditional SSB transmission schemes, the candidate SSB index is determined based on the sequence index of the PBCH DMRS and the PBCH information bits. However, in the embodiments of this application, the first SSB received by the terminal device may not contain the PBCH, or the PBCH may no longer be used to indicate the candidate SSB index. In this case, the candidate SSB index can be indicated by the PSS and / or SSS.

[0193] In this embodiment, the network device can indicate the candidate SSB index corresponding to the SSB through the PSS, SSS, and / or PBCH in the SSB. Correspondingly, the terminal device can determine the candidate SSB index corresponding to the currently received SSB through the PSS, SSS, and / or PBCH in the received SSB. This scheme enables the terminal device to clearly identify which candidate SSB in a period corresponds to the currently received SSB when receiving an SSB, thereby locating the resource location corresponding to the candidate SSB and improving the accuracy of the terminal device in receiving SSBs.

[0194] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB includes the PSS, the candidate SSB index corresponding to the SSB is associated with the fourth sequence corresponding to the PSS.

[0195] In some embodiments, the association between the candidate SSB index and the fourth sequence corresponding to the PSS can mean that there is a correspondence between the candidate SSB index and the fourth sequence corresponding to the PSS in the SSB; optionally, the correspondence between the candidate SSB index and the fourth sequence corresponding to the PSS in the SSB is predefined by the protocol. When receiving an SSB, the terminal device can determine the candidate SSB index corresponding to the current SSB based on the fourth sequence of the PSS in the currently received SSB.

[0196] In this embodiment of the application, the network device can indicate the candidate SSB index corresponding to the SSB through the fourth sequence corresponding to the PSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB index corresponding to the currently received SSB through the fourth sequence corresponding to the PSS in the received SSB. This scheme enables the terminal device to clearly identify which candidate SSB in a period corresponds to the currently received SSB when receiving an SSB, thereby improving the accuracy of the terminal device in receiving SSBs.

[0197] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the fourth sequence includes an m sequence for carrying the cell ID.

[0198] In some embodiments, the first PSS, second PSS, or third PSS in the first SSB currently received by the terminal device indicates the candidate SSB index corresponding to the currently received SSB. Specifically, for example, the first PSS, second PSS, or third PSS uses a fourth sequence index, which is associated with the first candidate SSB index.

[0199] For example, the four candidate SSBs in Figures 9 to 13, namely SSB#0 to 3, correspond to candidate SSB indices i respectively. SSB=0~3, the m-sequence index corresponding to the PSS can be compared with the candidate SSB index i SSB Association, for example After receiving the PSS, the terminal device can determine the candidate SSB index corresponding to the received SSB based on the detected m-sequence index.

[0200] In this embodiment, the network device can indicate the candidate SSB index corresponding to the SSB by the m-sequence carrying the cell ID corresponding to the PSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB index corresponding to the currently received SSB by the m-sequence carrying the cell ID corresponding to the PSS in the received SSB. This scheme enables the terminal device to clearly identify which candidate SSB in a period corresponds to the currently received SSB when receiving an SSB, thereby locating the resource location corresponding to the candidate SSB and improving the accuracy of the terminal device in receiving SSBs.

[0201] Based on the solutions shown in any one or more embodiments of the above embodiments of this application, in some embodiments, when the SSB contains an SSS, the candidate SSB index corresponding to the SSB is associated with the fifth sequence corresponding to the SSS.

[0202] In some embodiments, the association between the candidate SSB index and the fifth sequence corresponding to the SSS can mean that there is a correspondence between the candidate SSB index and the fifth sequence corresponding to the SSS; optionally, the correspondence between the candidate SSB index and the fifth sequence corresponding to the SSS is predefined by the protocol. When receiving an SSB, the terminal device can determine the candidate SSB index corresponding to the current SSB based on the fifth sequence of the SSS in the currently received SSB.

[0203] In this embodiment, the network device can indicate the candidate SSB index through the fifth sequence corresponding to the SSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB index corresponding to the currently received SSB through the fifth sequence corresponding to the SSS in the received SSB. This scheme enables the terminal device to clearly identify which candidate SSB in a period corresponds to the currently received SSB when receiving an SSB, thereby locating the resource location corresponding to the candidate SSB and improving the accuracy of the terminal device in receiving SSBs.

[0204] Based on the schemes shown in any one or more embodiments of the above embodiments of this application, in some embodiments, the fifth sequence includes a gold sequence for carrying the cell ID.

[0205] In some embodiments, the first SSS or second SSS in the first SSB currently received by the terminal device indicates the index of the currently received first SSB. Specifically, for example, the first SSS or second SSS uses a fifth sequence index, which is associated with the index of the first candidate SSB.

[0206] For example, the four candidate SSBs in Figures 9 to 13, namely SSB#0 to 3, correspond to candidate SSB indices i respectively. SSB =0~3, the gold sequence index corresponding to SSS can be compared with the candidate SSB index i SSB Association, for example After receiving the SSS, the terminal device can determine the candidate SSB index corresponding to the received SSB based on the detected gold sequence index.

[0207] In this embodiment, the network device can indicate the candidate SSB index through the gold sequence carrying the cell ID corresponding to the SSS in the SSB. Correspondingly, the terminal device can determine the candidate SSB index corresponding to the currently received SSB through the gold sequence carrying the cell ID corresponding to the SSS in the received SSB. This scheme enables the terminal device to clearly identify which candidate SSB in a period corresponds to the currently received SSB when receiving an SSB, thereby locating the resource location corresponding to the candidate SSB and improving the accuracy of the terminal device in receiving SSBs.

[0208] It should be noted that multiple values ​​of PSS, SSS, PBCH, DMRS, and PBCH included in the first synchronization signal block can be used to jointly indicate the candidate SSB index. For example, for the candidate SSB indices i_SSB = 0 to 3 corresponding to the four candidate SSBs in Figure 9, 2 bits of information are required for indication, such as i_SSB = 0 to 3 corresponding to 2 bit values ​​'00', '01', '10', and '11' respectively. In this case, the PSS in the SSB is used to indicate the 1MSB bit of i_SSB, and the SSS in the SSB is used to indicate the 1LSB bit of i_SSB. After receiving the PSS and SSS, the terminal device determines the candidate SSB index based on the 1MSB bit and 1LSB bit of i_SSB indicated by the PSS and SSS respectively.

[0209] Based on the solutions shown in any one or more embodiments of the above-described embodiments of this application, a downlink synchronization signal transmission scheme is provided. The terminal device receives a first synchronization signal block during a first reception time within a first cycle. The first synchronization signal block includes one or more of PSS, SSS, and PBCH. This scheme may include the following:

[0210] 1) If the first synchronization signal block includes a first PSS, a first SSS, and a first PBCH, or includes a second PSS and a second SSS, or includes only a third PSS, the different candidate synchronization signal blocks are spaced apart by a first, second, or fourth number of OFDM symbols, where the first, second, or fourth number of OFDM symbols are positive integers greater than or equal to 1. In this case, network devices can transmit SSBs on fewer and more continuous time-domain resources, allowing the network to remain in an energy-saving state for a longer period of time, thereby effectively reducing network energy consumption.

[0211] 2) The first PSS, second PSS, or third PSS corresponds to the first sequence index, the first SSS or second SSS corresponds to the second sequence index, and the DMRS of the first PBCH corresponds to the third sequence index. Alternatively, the first PBCH carries first information indicating that the synchronization signal block containing the first PBCH is the first synchronization signal block. In this case, after receiving the PSS, SSS, or PBCH, the terminal device can determine the candidate SSB pattern and / or SSB structure currently used by the network device, thereby receiving the SSB sent by the network device at the correct time-frequency location.

[0212] 3) The first PSS, second PSS or third PSS mentioned above use a fourth sequence index, which is associated with the first candidate synchronization signal block index. Alternatively, the first SSS or second SSS uses a fifth sequence index, which is associated with the second candidate synchronization signal block index. This can ensure that after the terminal device receives the PSS or SSS, it can determine the candidate SSB index corresponding to the current SSB.

[0213] The scheme shown in this application is designed based on network energy saving and can be extended to any scheme that shortens the distance between candidate SSBs and reduces the number of symbols contained in an SSB.

[0214] Please refer to Figure 14, which shows a block diagram of a wireless communication device according to an embodiment of this application. This wireless communication device has the functions performed by a terminal device in the methods shown in Figures 3, 4, or 6 above. As shown in Figure 14, the device may include: a receiving module 1401, a transmitting module 1402, and a processing module 1403; wherein, the transmitting module 1402 is used to transmit signals to a network device; the receiving module 1401 is used to receive information sent by the network device; and the processing module 1403 is used to perform data transmission and reception related processing.

[0215] The receiving module 1401 is configured to receive a synchronization signal block SSB at a first receiving opportunity within a first period. The SSB includes one or more of a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH. The first period includes at least one receiving opportunity, and each receiving opportunity corresponds to a candidate SSB.

[0216] In some embodiments, when the SSB includes PSS, SSS and PBCH, two adjacent candidate SSBs are spaced apart in the time domain by a first number of OFDM symbols.

[0217] In some embodiments, when the SSB includes both PSS and SSS, a second number of OFDM symbols are spaced in the time domain between two adjacent candidate SSBs.

[0218] In some embodiments, the PSS and SSS in the SSB are spaced a third number of OFDM symbols apart in the time domain.

[0219] In some embodiments, when the SSB includes a PSS, a fourth number of OFDM symbols are spaced in the time domain between two adjacent candidate SSBs.

[0220] In some embodiments, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the PSS, SSS, or PBCH in the SSB.

[0221] In some embodiments, when the SSB includes a PSS, the candidate SSB pattern and / or SSB structure is associated with a first sequence corresponding to the PSS.

[0222] In some embodiments, the candidate SSB pattern and / or SSB structure are associated with the following information of the first sequence:

[0223] Sequence index, circular shift index, or sequence initialization value.

[0224] In some embodiments, the first sequence includes an m-sequence for carrying a cell ID.

[0225] In some embodiments, when the SSB includes an SSS, the candidate SSB pattern and / or SSB structure is associated with a second sequence corresponding to the SSS.

[0226] In some embodiments, the candidate SSB pattern and / or SSB structure are associated with the following information of the second sequence:

[0227] Sequence index, circular shift index, or sequence initialization value.

[0228] In some embodiments, the second sequence includes a gold sequence for carrying a cell ID.

[0229] In some embodiments, where the SSB includes a PBCH, the candidate SSB pattern and / or SSB structure is associated with a third sequence corresponding to the DMRS of the PBCH.

[0230] In some embodiments, the candidate SSB pattern and / or SSB structure are associated with the following information about the third sequence:

[0231] Sequence index, circular shift index, or sequence initialization value.

[0232] In some embodiments, the third sequence includes a gold sequence for generating a pseudo-random sequence.

[0233] In some embodiments, where the SSB includes a PBCH, the candidate SSB pattern and / or SSB structure are associated with the first information carried by the PBCH.

[0234] In some embodiments, the candidate SSBs in the first period each correspond to their respective candidate SSB indices.

[0235] In some embodiments, the candidate SSB index corresponding to the SSB is associated with the PSS, SSS, and / or PBCH in the SSB.

[0236] In some embodiments, when the candidate SSB includes a PSS, the candidate SSB index corresponding to the SSB is associated with the fourth sequence corresponding to the PSS.

[0237] In some embodiments, the fourth sequence includes an m-sequence for carrying a cell ID.

[0238] In some embodiments, when the SSB includes an SSS, the candidate SSB index corresponding to the SSB is associated with the fifth sequence corresponding to the SSS.

[0239] In some embodiments, the fifth sequence includes a gold sequence for carrying a cell ID.

[0240] Please refer to Figure 15, which shows a block diagram of a wireless communication device according to an embodiment of this application. This wireless communication device has the functions performed by a terminal device in the methods shown in Figures 3, 4, or 6 above. As shown in Figure 15, the device may include: a transmitting module 1501, a receiving module 1502, and a processing module 1503; wherein, the transmitting module 1501 is used to transmit signals to a network device; the receiving module 1502 is used to receive information sent by the network device; and the processing module 1503 is used to perform data transmission and reception related processing.

[0241] The transmitting module 1501 is configured to transmit a candidate SSB in a first period so that the terminal device can receive the SSB at a first receiving opportunity in the first period. The SSB includes one or more of PSS, SSS and PBCH.

[0242] The first period includes at least one reception opportunity, and each reception opportunity corresponds to one candidate SSB.

[0243] In some embodiments, when the SSB includes PSS, SSS and PBCH, two adjacent candidate SSBs are spaced apart in the time domain by a first number of OFDM symbols.

[0244] In some embodiments, when the SSB includes both PSS and SSS, a second number of OFDM symbols are spaced in the time domain between two adjacent candidate SSBs.

[0245] In some embodiments, the PSS and SSS in the SSB are spaced a third number of OFDM symbols apart in the time domain.

[0246] In some embodiments, when the SSB includes a PSS, a fourth number of OFDM symbols are spaced in the time domain between two adjacent candidate SSBs.

[0247] In some embodiments, the candidate SSB pattern and / or SSB structure corresponding to the SSB is associated with the PSS, SSS, or PBCH in the SSB.

[0248] In some embodiments, when the SSB includes a PSS, the candidate SSB pattern and / or SSB structure is associated with a first sequence corresponding to the PSS.

[0249] In some embodiments, the candidate SSB pattern and / or SSB structure are associated with the following information of the first sequence:

[0250] Sequence index, circular shift index, or sequence initialization value.

[0251] In some embodiments, the first sequence includes an m-sequence for carrying a cell ID.

[0252] In some embodiments, when the SSB includes an SSS, the candidate SSB pattern and / or SSB structure is associated with a second sequence corresponding to the SSS.

[0253] In some embodiments, the candidate SSB pattern and / or SSB structure are associated with the following information of the second sequence:

[0254] Sequence index, circular shift index, or sequence initialization value.

[0255] In some embodiments, the second sequence includes a gold sequence for carrying a cell ID.

[0256] In some embodiments, where the SSB includes a PBCH, the candidate SSB pattern and / or SSB structure is associated with a third sequence corresponding to the DMRS of the PBCH.

[0257] In some embodiments, the candidate SSB pattern and / or SSB structure are associated with the following information about the third sequence:

[0258] Sequence index, circular shift index, or sequence initialization value.

[0259] In some embodiments, the third sequence includes a gold sequence for generating a pseudo-random sequence.

[0260] In some embodiments, where the SSB includes a PBCH, the candidate SSB pattern and / or SSB structure are associated with the first information carried by the PBCH.

[0261] In some embodiments, the candidate SSBs in the first period each correspond to their respective candidate SSB indices.

[0262] In some embodiments, the candidate SSB index corresponding to the SSB is associated with the PSS, SSS, and / or PBCH in the SSB.

[0263] In some embodiments, when the candidate SSB includes a PSS, the candidate SSB index corresponding to the SSB is associated with the fourth sequence corresponding to the PSS.

[0264] In some embodiments, the fourth sequence includes an m-sequence for carrying a cell ID.

[0265] In some embodiments, when the SSB includes an SSS, the candidate SSB index corresponding to the SSB is associated with the fifth sequence corresponding to the SSS.

[0266] In some embodiments, the fifth sequence includes a gold sequence for carrying a cell ID.

[0267] It should be noted that the device provided in the above embodiments is only illustrated by the division of the above functional modules when implementing its functions. In actual applications, the above functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0268] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0269] Please refer to Figure 16, which shows a schematic diagram of the structure of a communication device 1600 provided in one embodiment of this application. The communication device 1600 may include: a processor 1601, a receiver 1602, a transmitter 1603, a memory 1604, and a bus 1605.

[0270] The processor 1601 includes one or more processing cores, and the processor 1601 executes various functional applications and information processing by running software programs and modules.

[0271] The receiver 1602 and transmitter 1603 can be implemented as a communication component, which can be a communication chip. This communication chip can also be called a transceiver. The memory 1604 is connected to the processor 1601 via a bus 1605. The memory 1604 can be used to store computer programs, and the processor 1601 uses these computer programs to execute the various steps in the above method embodiments.

[0272] Furthermore, the memory 1604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static on-demand memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0273] The receiver 1602 and the processor 1601 execute the computer program to enable the communication device 1600 to perform the various steps of the method shown in FIG3, FIG4 or FIG6, which are executed by the terminal device or the network device.

[0274] In one exemplary embodiment, the communication device 1600 is the aforementioned terminal device, and the receiver 1602 and processor 1601 execute the computer program to enable the communication device 1600 to perform the various steps performed by the terminal device in the method shown in FIG3, FIG4 or FIG6.

[0275] In one exemplary embodiment, the communication device 1600 is the aforementioned network device, and the transmitter 1603 and processor 1601 execute the computer program to cause the communication device 1600 to implement the various steps performed by the network device in the method shown in FIG3, FIG4 or FIG6.

[0276] This application also provides a computer-readable storage medium storing a computer program. The computer program is loaded and executed by a processor to implement all or part of the steps performed by a terminal device or network device in the methods shown in Figures 3, 4, or 6. For example, this application provides a computer-readable storage medium storing a computer program that is loaded and executed by a processor to implement all or part of the steps performed by a terminal device in the methods shown in Figures 3, 4, or 6. As another example, this application provides a computer-readable storage medium storing a computer program that is loaded and executed by a processor to implement all or part of the steps performed by a network device in the methods shown in Figures 3, 4, or 6.

[0277] This application also provides a chip including an integrated circuit and firmware disposed within the integrated circuit. The chip is configured to operate in a communication device to cause the communication device to perform all or part of the steps in the methods shown in Figures 3, 4, or 6, which are executed by a terminal device or a network device. For example, the chip is configured to operate in a terminal device to cause the terminal device to perform all or part of the steps in the methods shown in Figures 3, 4, or 6. As another example, the chip is configured to operate in a network device to cause the network device to perform all or part of the steps in the methods shown in Figures 3, 4, or 6.

[0278] This application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor of a communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the communication device to perform all or part of the steps in the methods shown in Figures 3, 4, or 6, as performed by a terminal device or a network device. For example, this application provides a computer program product, which includes computer instructions stored in a computer-readable storage medium; a processor of a terminal device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the terminal device to perform all or part of the steps in the methods shown in Figures 3, 4, or 6, as performed by the terminal device. As another example, this application provides a computer program product, which includes computer instructions stored in a computer-readable storage medium; a processor of a network device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the network device to perform all or part of the steps in the methods shown in Figures 3, 4, or 6, as performed by the network device.

[0279] This application also provides a computer program executed by the processor of a communication device to implement all or part of the steps performed by the terminal device or network device in the methods shown in Figures 3, 4, or 6. For example, this application provides a computer program executed by the processor of a terminal device to implement all or part of the steps performed by the terminal device in the methods shown in Figures 3, 4, or 6. As another example, this application provides a computer program executed by the processor of a network device to implement all or part of the steps performed by the network device in the methods shown in Figures 3, 4, or 6.

[0280] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0281] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wireless communication method, characterized in that, The method is executed by a terminal device, and the method includes: A synchronization signal block SSB is received at the first reception time within the first cycle. The SSB includes one or more of the main synchronization signal PSS, the auxiliary synchronization signal SSS, and the physical broadcast channel PBCH. The first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

2. The method according to claim 1, characterized in that, When the SSB includes PSS, SSS and PBCH, two adjacent candidate SSBs are spaced apart by a first number of OFDM symbols in the time domain.

3. The method according to claim 1, characterized in that, In the case where the SSB includes both PSS and SSS, a second number of OFDM symbols are spaced in the time domain between two adjacent candidate SSBs.

4. The method according to claim 3, characterized in that, The PSS and SSS in the SSB are separated by a third number of OFDM symbols in the time domain.

5. The method according to claim 1, characterized in that, In the case where the SSB includes a PSS, the time domain is spaced a fourth number of OFDM symbols between two adjacent candidate SSBs.

6. The method according to any one of claims 1 to 5, characterized in that, The candidate SSB pattern and / or SSB structure corresponding to the SSB are associated with the PSS, SSS or PBCH in the SSB.

7. The method according to claim 6, characterized in that, When the SSB includes a PSS, the candidate SSB pattern and / or SSB structure is associated with the first sequence corresponding to the PSS.

8. The method according to claim 7, characterized in that, The candidate SSB pattern and / or SSB structure are associated with the following information of the first sequence: Sequence index, circular shift index, or sequence initialization value.

9. The method according to claim 7 or 8, characterized in that, The first sequence includes an m-sequence for carrying the cell ID.

10. The method according to claim 6, characterized in that, When the SSB contains an SSS, the candidate SSB pattern and / or SSB structure is associated with the second sequence corresponding to the SSS.

11. The method according to claim 10, characterized in that, The candidate SSB pattern and / or SSB structure are associated with the following information of the second sequence: Sequence index, circular shift index, or sequence initialization value.

12. The method according to claim 10 or 11, characterized in that, The second sequence includes a gold sequence for carrying the cell ID.

13. The method according to claim 6, characterized in that, When the SSB contains a PBCH, the candidate SSB pattern and / or SSB structure is associated with a third sequence corresponding to the DMRS of the PBCH.

14. The method according to claim 13, characterized in that, The candidate SSB pattern and / or SSB structure are associated with the following information of the third sequence: Sequence index, circular shift index, or sequence initialization value.

15. The method according to claim 13 or 14, characterized in that, The third sequence includes a gold sequence used to generate pseudo-random sequences.

16. The method according to claim 6, characterized in that, When the SSB contains a PBCH, the candidate SSB pattern and / or SSB structure are associated with the first information carried by the PBCH.

17. The method according to any one of claims 1 to 16, characterized in that, The candidate SSBs in the first period each correspond to their respective candidate SSB indices.

18. The method according to claim 17, characterized in that, The candidate SSB index corresponding to the SSB is associated with the PSS, SSS and / or PBCH in the SSB.

19. The method according to claim 18, characterized in that, When the SSB contains a PSS, the candidate SSB index corresponding to the SSB is associated with the fourth sequence corresponding to the PSS.

20. The method according to claim 19, characterized in that, The fourth sequence includes an m-sequence for carrying the cell ID.

21. The method according to any one of claims 18 to 20, characterized in that, When the SSB contains an SSS, the candidate SSB index corresponding to the SSB is associated with the fifth sequence corresponding to the SSS.

22. The method according to claim 21, characterized in that, The fifth sequence includes a gold sequence for carrying the cell ID.

23. A wireless communication method, characterized in that, The method is performed by a network device, and the method includes: An SSB is sent at the first access time within the first cycle, so that the terminal device receives the SSB at the first reception time. The SSB includes one or more of PSS, SSS, and PBCH. The first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

24. The method according to claim 23, characterized in that, When the SSB includes PSS, SSS and PBCH, two adjacent candidate SSBs are spaced apart by a first number of OFDM symbols in the time domain.

25. The method according to claim 23, characterized in that, In the case where the SSB includes both PSS and SSS, a second number of OFDM symbols are spaced in the time domain between two adjacent candidate SSBs.

26. The method according to claim 25, characterized in that, The PSS and SSS in the SSB are separated by a third number of OFDM symbols in the time domain.

27. The method according to claim 23, characterized in that, In the case where the SSB includes a PSS, the time domain is spaced a fourth number of OFDM symbols between two adjacent candidate SSBs.

28. The method according to any one of claims 23 to 27, characterized in that, The candidate SSB pattern and / or SSB structure corresponding to the SSB are associated with the PSS, SSS or PBCH in the SSB.

29. The method according to claim 28, characterized in that, When the SSB includes a PSS, the candidate SSB pattern and / or SSB structure is associated with the first sequence corresponding to the PSS.

30. The method according to claim 29, characterized in that, The candidate SSB pattern and / or SSB structure are associated with the following information of the first sequence: Sequence index, circular shift index, or sequence initialization value.

31. The method according to claim 29 or 30, characterized in that, The first sequence includes an m-sequence for carrying the cell ID.

32. The method according to claim 28, characterized in that, When the SSB contains an SSS, the candidate SSB pattern and / or SSB structure is associated with the second sequence corresponding to the SSS.

33. The method according to claim 32, characterized in that, The candidate SSB pattern and / or SSB structure are associated with the following information of the second sequence: Sequence index, circular shift index, or sequence initialization value.

34. The method according to claim 32 or 33, characterized in that, The second sequence includes a gold sequence for carrying the cell ID.

35. The method according to claim 28, characterized in that, When the SSB contains a PBCH, the candidate SSB pattern and / or SSB structure is associated with a third sequence corresponding to the DMRS of the PBCH.

36. The method according to claim 35, characterized in that, The candidate SSB pattern and / or SSB structure are associated with the following information of the third sequence: Sequence index, circular shift index, or sequence initialization value.

37. The method according to claim 35 or 36, characterized in that, The third sequence includes a gold sequence used to generate pseudo-random sequences.

38. The method according to claim 28, characterized in that, When the SSB contains a PBCH, the candidate SSB pattern and / or SSB structure are associated with the first information carried by the PBCH.

39. The method according to any one of claims 23 to 38, characterized in that, The candidate SSBs in the first period each correspond to their respective candidate SSB indices.

40. The method according to claim 39, characterized in that, The candidate SSB index corresponding to the SSB is associated with the PSS, SSS and / or PBCH in the SSB.

41. The method according to claim 39, characterized in that, If the candidate SSB includes a PSS, the candidate SSB index corresponding to the SSB is associated with the fourth sequence corresponding to the PSS.

42. The method according to claim 41, characterized in that, The fourth sequence includes an m-sequence for carrying the cell ID.

43. The method according to any one of claims 40 to 42, characterized in that, When the SSB contains an SSS, the candidate SSB index corresponding to the SSB is associated with the fifth sequence corresponding to the SSS.

44. The method according to claim 43, characterized in that, The fifth sequence includes a gold sequence for carrying the cell ID.

45. A wireless communication device, characterized in that, The device includes: The receiving module is configured to receive a synchronization signal block SSB at a first receiving time within a first period, wherein the SSB includes one or more of a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH. The first period includes at least one reception opportunity, and each reception opportunity corresponds to a candidate SSB.

46. ​​A wireless communication device, characterized in that, The device includes: The transmitting module is configured to transmit an SSB at a first access opportunity within a first period, so that the terminal device can receive the SSB at the first receiving opportunity, wherein the SSB includes one or more of PSS, SSS, and PBCH; The first period includes at least one reception opportunity, and each reception opportunity corresponds to one candidate SSB.

47. A communication device, characterized in that, The terminal device includes a processor, a memory, and a transceiver; The memory stores a computer program, and the processor executes the computer program to enable the communication device to implement the wireless communication method as described in any one of claims 1 to 44.

48. A computer-readable storage medium, characterized in that, The storage medium stores a computer program that is executed by the processor of the communication device to enable the communication device to implement the wireless communication method as described in any one of claims 1 to 44.

49. A chip, characterized in that, The chip includes an integrated circuit and firmware disposed in the integrated circuit, the chip being configured to operate in a communication device to cause the communication device to perform the wireless communication method as described in any one of claims 1 to 44.

50. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium; the processor of the communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the communication device to perform the wireless communication method as described in any one of claims 1 to 44.

51. A computer program, characterized in that, The computer program is executed by the processor of the communication device to enable the communication device to implement the wireless communication method as described in any one of claims 1 to 44.

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