A communication method, a communication node, a storage medium, and a program product

Abstract

This application provides a communication method, a communication node, a storage medium, and a program product. The method includes: a first communication node receiving a first parameter, the first parameter being used to indicate a synchronous broadcast block index. By indicating the synchronous broadcast block index through the first parameter, the first communication node can determine the synchronous broadcast block through the synchronous broadcast block index indicated by the first parameter, solving the problem in the prior art that synchronous broadcast blocks cannot be indicated. By uniformly indicating the synchronous broadcast block index through the first parameter, the first communication node only needs to receive the first parameter to determine the synchronous broadcast block index, thereby enabling rapid detection of synchronous broadcast blocks.

Description

Technical Field

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

[0002] With the continuous advancement of radio technology, a wide variety of radio services have emerged. Besides cellular services between base stations and terminals, there are various local or regional communication services. Typical communication systems include Long Term Evolution (LTE), New Radio (NR), short-range communication systems, Wireless Fidelity (WiFi), Bluetooth, vehicle-to-everything (V2X) systems, industrial internet systems, Star Alliance systems, Future Evolution systems, and multi-communication convergence systems. Most of these communication systems primarily use Orthogonal Frequency Division Multiplexing (OFDM) modulation / demodulation. The first step for a User Equipment (UE) to access a communication system is to acquire a synchronization signal and a broadcast channel, which can be collectively referred to as the SSB. An SSB may not necessarily include the broadcast channel. In the time domain, the Synchronization Signal / Physical Broadcast Channel (SSB) consists of several OFDM symbols (simply referred to as symbols). In the frequency domain, the SSB consists of several resource blocks. Within certain time slots or subframes, several SSBs are included. Without loss of generality, each SSB corresponds to an SSB index, and the UE accesses the cell corresponding to the SSB with higher reception quality. However, for some operating frequency bands, there are SSB coverage bottlenecks, making it impossible to ensure that the UE can correctly detect the SSB. Increasing the number of SSBs can improve SSB coverage. However, after increasing the number of SSBs, how to indicate a large number of SSBs becomes a problem to be solved. Summary of the Invention

[0003] This application provides a communication method, a communication node, a storage medium, and a program product to solve the problem of being unable to instruct synchronous broadcast blocks.

[0004] To achieve the above objectives, embodiments of this application provide a communication method applied to a first communication node, comprising:

[0005] Receive a first parameter, which indicates the synchronous broadcast block index.

[0006] To achieve the above objectives, embodiments of this application provide another communication method applied to a second communication node, including:

[0007] Send the first parameter, which is used to indicate the synchronous broadcast block index.

[0008] To achieve the above objectives, embodiments of this application provide another communication method applied to a third communication node, including:

[0009] The repetition information of the synchronous broadcast block is determined based on the third parameter.

[0010] To achieve the above objectives, embodiments of this application provide a communication node, including: a memory, a processor, a program stored in the memory and executable on the processor, and a data bus for implementing communication between the processor and the memory. When the program is executed by the processor, it implements the steps of the communication method as described in any one of the embodiments of this application.

[0011] To achieve the above objectives, embodiments of this application provide a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, which can be executed by one or more processors to implement the steps of the communication method described in any one of the embodiments of this application.

[0012] To achieve the above objectives, embodiments of this application provide a computer program product, which includes a computer program that, when executed by a processor, implements the communication method described in any one of the embodiments of this application.

[0013] The communication method, communication node, storage medium, and program product provided in this application embodiment include a first communication node receiving a first parameter. The first parameter is used to indicate the synchronous broadcast block index. By indicating the synchronous broadcast block index through the first parameter, the first communication node can determine the synchronous broadcast block through the synchronous broadcast block index indicated by the first parameter, thus solving the problem that the synchronous broadcast block cannot be indicated in the prior art. By uniformly indicating the synchronous broadcast block index through the first parameter, the first communication node only needs to receive the first parameter to determine the synchronous broadcast block index, thereby enabling rapid detection of the synchronous broadcast block.

[0014] Further details regarding the above embodiments and other aspects of this application, as well as their implementations, are provided in the accompanying drawings, detailed description, and claims. Attached Figure Description

[0015] Figure 1 A flowchart illustrating a communication method provided in one embodiment;

[0016] Figure 2A flowchart illustrating another communication method provided in one embodiment;

[0017] Figure 3 A flowchart illustrating another communication method provided in one embodiment;

[0018] Figure 4a An example diagram of an SSB index provided for one embodiment;

[0019] Figure 4b Example diagram of another SSB index provided for one embodiment;

[0020] Figure 5a Example diagram of another SSB index provided for one embodiment;

[0021] Figure 5b Example diagram of another SSB index provided for one embodiment;

[0022] Figure 5c Example diagram of another SSB index provided for one embodiment;

[0023] Figure 5d Example diagram of another SSB index provided for one embodiment;

[0024] Figure 6a An example diagram of the time-domain location of an SSB is provided for one embodiment;

[0025] Figure 6b Example diagram of another SSB time-domain location provided in one embodiment;

[0026] Figure 6c Example diagram of another SSB time-domain location provided in one embodiment;

[0027] Figure 6d Example diagram of another SSB time-domain location provided in one embodiment;

[0028] Figure 7a An example diagram of an SSB frequency domain location provided in one embodiment;

[0029] Figure 7b An example diagram showing another SSB frequency domain location provided in one embodiment;

[0030] Figure 8 An example diagram of an SSB symbol provided for one embodiment;

[0031] Figure 9 A schematic diagram of the structure of a communication device provided in one embodiment;

[0032] Figure 10 A schematic diagram of the structure of another communication device provided in one embodiment;

[0033] Figure 11 A schematic diagram of the structure of another communication device provided in one embodiment;

[0034] Figure 12 This is a schematic diagram of the structure of a communication node provided in one embodiment. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0036] Figure 1 A flowchart of a communication method provided in one embodiment, such as Figure 1 As shown, the communication method described in this application embodiment is applied to a first communication node, which, for example, may be a UE; the method includes S110:

[0037] S110. Receive the first parameter, which is used to indicate the synchronous broadcast block index.

[0038] In this embodiment, the first parameter can be understood as a parameter transmitted during communication. The first parameter can be carried in the communication message. For example, the first parameter can be carried in the relevant information of the Physical Broadcast Channel (PBCH). The first parameter can be carried by one type of information or by a combination of multiple types of information. It can also be understood that the first parameter can include one or more types of information or parameters. When the first parameter includes one or more types of information, the more types of information it can indicate, the more synchronous broadcast blocks it can indicate. For example, when the total number of synchronous broadcast blocks is greater than 256, three types of information can be selected for coordinated indication; when the total number of synchronous broadcast blocks is less than 32, only one type of information needs to be selected for indication. When indicating the index of synchronous broadcast blocks, the number of synchronous broadcast blocks can be comprehensively considered to select an appropriate type of information for indication.

[0039] The first parameter can be sent by the second communication node, which, for example, can be a base station. The second communication node generates the first parameter, indicates the synchronization broadcast block index through the first parameter, and sends the first parameter to the first communication node. The first communication node receives the first parameter. Since the first parameter indicates the synchronization broadcast block index, the first communication node can determine the corresponding synchronization broadcast block through the synchronization broadcast block index indicated by the first parameter, and can detect the synchronization broadcast block.

[0040] The communication method provided in this application embodiment involves a first communication node receiving a first parameter, which is used to indicate the synchronous broadcast block index. By indicating the synchronous broadcast block index through the first parameter, the first communication node can determine the synchronous broadcast block through the synchronous broadcast block index indicated by the first parameter, thus solving the problem that the synchronous broadcast block cannot be indicated in the prior art. By uniformly indicating the synchronous broadcast block index through the first parameter, the first communication node only needs to receive the first parameter to determine the synchronous broadcast block index, thereby enabling rapid detection of the synchronous broadcast block.

[0041] In some embodiments, the first parameter includes at least one of the following:

[0042] Parameter i in the demodulation reference signal sequence of the physical broadcast channel SSB ;

[0043] Physical broadcast channel Bit field;

[0044] Physical broadcast channel Bit field;

[0045] Physical broadcast channel Bit field;

[0046] The spare bit field of the physical broadcast channel;

[0047] The half-frame bit field of the physical broadcast channel;

[0048] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0049] The Synchronization Broadcast Block Index (SSB index) bit field of the Physical Broadcast Channel.

[0050] In this embodiment, the Physical Broadcast Channel (PBCH) Demodulation Reference Signal (DMRS) sequence can have various different parameters, i SSB For one of the parameters; further, i SSB This is one of the initialization parameters for the PBCHDMRS sequence. It is obtained through parameter i in the PBCHDMRS sequence. SSB When indicating an SSB index, it is equivalent to x1 bits, and the maximum number of SSBs that can be indicated is 2. x1 For example, x1 = 3. Exemplarily, this is achieved through the parameter i in the PBCH DMRS sequence. SSB When indicating the SSB index, it can be i in each PBCH DMRS sequence. SSBThis represents an index; when generating PBCHDMRS sequences, different SSBs can generate different PBCHDMRS sequences, and different PBCHDMRS sequences include different i SSB Therefore, different i can be included in different PBCH DMRS sequences. SSB Indicates different SBB indexes.

[0051] Physical broadcast channel Bit field, physical broadcast channel Bit domain and physical broadcast channel The bit fields correspond to bits x0 and PBCH respectively. and The bit field corresponds to x2 bits in total, for example, x0 = 1, x2 = 3.

[0052] The spare bit field of the physical broadcast channel corresponds to x3 bits, for example, x3 = 1.

[0053] The half-frame bit field of the physical broadcast channel corresponds to x4 bits, for example, x4 = 1.

[0054] The CRC mask for the physical broadcast channel is equivalent to x5 bits, for example, x5 = ceil(log2(M)), where M is the number of states of the PBCH CRC mask used. For example, the PBCH CRC mask is used to scramble the PBCH CRC. Scrambling can refer to an XOR operation between the PBCH CRC mask and the PBCH CRC, or it can refer to an XNOR operation between the PBCH CRC mask and the PBCH CRC, and so on. After receiving the PBCH CRC, the first communication node scrambles the PBCH CRC using the PBCH CRC mask. For example, when receiving the PBCH, the first communication node will try to perform blind detection using different PBCH CRC masks. When a mask that can pass the CRC check is found, the SSB index can be determined based on this PBCH CRC mask. Each PBCH CRC mask corresponds to one SSB index. Therefore, the total number of states M of the PBCH CRC mask can be considered equal to the total number of indicable SSB indices, which is equivalent to x5 bits, x5 = log2(M), or x5 = ceil(log2(M)), or x5 = floor(log2(M)).

[0055] The SSB index bit field of the physical broadcast channel corresponds to x6 bits, for example, x6 = 8.

[0056] When indicating an SSB index using one or more of the above parameters, the larger the number of bits corresponding to the parameter, the more SSB indices it can indicate. For example, 3 bits can indicate a maximum of 8 SSB indices. When the number of SSBs exceeds 8, it is necessary to increase the number of bits to indicate the SSB indexes. For example, by increasing the types of parameters included in the first parameter, for instance, when the number of SSBs is 64, it can be indicated through PBCH. Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index; when the number of SSBs is 128, it can be accessed through the spare bit field of the PBCH, the PBCH's... Bit field, i in PBCH DMRS sequence SSB Indicating SSB indexes. By indicating SSB indexes using one or more parameters provided in the embodiments of this application, the number of indicable SSB indexes can be increased. When increasing the number of SSBs to improve SSB coverage, it is often necessary to indicate a large number of SSBs. The method provided in the embodiments of this application can achieve the purpose of indicating a large number of SSBs, and the effect of enhanced coverage can be achieved by increasing the number of SSBs.

[0057] In some embodiments, when the first parameter includes at least two types of parameters, the maximum value of the synchronization broadcast block index indicated by the first parameter is determined based on the sum of the bit lengths corresponding to the at least two types of parameters.

[0058] When the first parameter includes at least two types of parameters, the SSB index is indicated by all types of parameters included in the first parameter. The maximum value of the synchronization broadcast block index indicated by the first parameter can be determined based on the sum of the bit lengths corresponding to the at least two types of parameters. That is, the maximum value that can be represented can be determined by the sum of the bit lengths corresponding to the parameters of all types in the first parameter. This maximum value can be the maximum value of the synchronization broadcast block index. For example, if the first parameter includes two types of parameters, and the bit lengths corresponding to each type of parameter are 1 bit and 2 bits respectively, then the sum of the bits is 3 bits. 3 bits can represent a maximum of 7, that is, the maximum value of the synchronization broadcast block index indicated by the first parameter is 7, and the SSB indices that can be indicated are 0, 1, 2, 3, 4, 5, 6, and 7 respectively.

[0059] In some embodiments, the synchronous broadcast block corresponding to the synchronous broadcast block index is a first type of synchronous broadcast block or a second type of synchronous broadcast block.

[0060] In this embodiment, the synchronization broadcast block can also be divided into a first type of synchronization broadcast block and a second type of synchronization broadcast block. Assume there are two types of first communication nodes. The first type of communication nodes only receive a portion of the SSBs (these portion of SSBs are called the first type of SSBs, and the other portion of SSBs are called the second type of SSBs, where each type of SSB includes one or more SSBs), and the second type of communication nodes only receive the second type of SSBs or receive all SSBs.

[0061] In some embodiments, the method further includes:

[0062] Receive the second parameter, which is used to indicate the operating mode of the first communication node.

[0063] In this embodiment, the second parameter can be understood as a parameter used to indicate the operating mode of the communication node. For example, it may indicate whether the first communication node receives a certain message, detects a certain SSB, or accesses a cell, etc. The second parameter instructs the first communication node on how to operate. The second parameter can be sent by the second communication node, received by the first communication node, and the first communication node determines its operating mode based on the indication of the second parameter.

[0064] In some embodiments, the second parameter includes at least one of the following:

[0065] The free bit field of the physical broadcast channel;

[0066] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0067] k of the physical broadcast channel SSB Bit field;

[0068] The cellBarred bit field of the physical broadcast channel.

[0069] For example, k of PBCH SSB The bit field corresponds to x7 bits, for example, x7 = 4; the cellBarred bit field of PBCH corresponds to x8 bits, for example, x8 = 1.

[0070] In some embodiments, the method further includes:

[0071] The operating mode of the first communication node is determined based on the second parameter.

[0072] The first communication node determines its operating mode based on the indication of the second parameter; for example, it determines whether the communication node is connected to the cell based on the indication of the second parameter. When determining the operating mode of the communication node, the type of the communication node can also be considered, and the operating mode is determined based on the type of the communication node and the indication of the second parameter.

[0073] In some embodiments, when the first communication node is a first type of communication node, the operating mode of the first communication node is determined according to the second parameter, including at least one of the following modes one to three:

[0074] Method 1: When the second parameter includes the cyclic redundancy check mask of the physical broadcast channel, the first communication node cannot detect the synchronization broadcast block.

[0075] When the second parameter includes a cyclic redundancy check (CR) mask for the physical broadcast channel, the first communication node, acting as a first-type communication node, cannot detect the synchronization broadcast block. In other words, when the second parameter includes a CR mask for the physical broadcast channel, the CR mask is used to scramble the CR of the physical broadcast channel. The first-type communication node cannot correctly descramble it, therefore it cannot detect the synchronization broadcast block or the synchronization detection block.

[0076] Method 2: The second parameter includes k of the physical broadcast channel. SSB k in the bit field and physical broadcast channel SSB When the bit field is set to a specific value, the first communication node ignores the synchronization broadcast block.

[0077] The second parameter includes k of the physical broadcast channel. SSB In the bit field case, when the first communication node acts as a first-type communication node, it detects k of the physical broadcast channel. SSB If the bit field is a set value, this synchronization broadcast block is ignored. The second parameter includes k of the physical broadcast channel. SSB In the bit field case, when the first communication node acts as a first-type communication node, it detects k of the physical broadcast channel. SSB If the bit field is a set value, then this synchronization broadcast block is ignored. For example, the set value can be binary 1110 or 11110, decimal 14 or 30, etc. The synchronization broadcast block that the first communication node cannot detect or ignore can refer to the synchronization broadcast block indicated by the synchronization broadcast block index.

[0078] Method 3: If the second parameter includes the cellBarred bit field of the physical broadcast channel and the cellBarred bit field of the physical broadcast channel indicates that access is disabled, the first communication node is prohibited from accessing the cell.

[0079] When the second parameter includes the cellBarred bit field of the physical broadcast channel, if the first communication node, as a first-type communication node, detects that the cellBarred bit field of the physical broadcast channel indicates prohibition, then the first communication node is prohibited from accessing the cell. If the first communication node detects that the cellBarred bit field of the physical broadcast channel does not indicate prohibition, then the first communication node can access the cell.

[0080] In some embodiments, when the first communication node is a second type of communication node, the operating mode of the first communication node is determined according to the second parameter, including at least one of the following modes four to seven:

[0081] Method 4: The second parameter includes k of the physical broadcast channel. SSB k in the bit field and physical broadcast channel SSB When the bit field indicates that access is prohibited, the first communication node is prohibited from accessing the cell.

[0082] Method 5: The second parameter includes k of the physical broadcast channel. SSB k in the bit field and physical broadcast channel SSB When the bit field indicates access, the first communication node accesses the cell.

[0083] The second parameter includes k of the physical broadcast channel. SSB In the case of the bit field, k SSB The bit field indicates whether access is allowed or denied; for example, binary 1110 indicates access denied, or binary 11110 indicates access denied. The first communication node acts as a second-type communication node if the physical broadcast channel's k... SSB The bit field indicates that access is prohibited, and the first communication node is prohibited from accessing the cell; if the physical broadcast channel k SSB The bit field indicates access, allowing the first communication node to access the cell. The first communication node can access the cell by detecting the SSB indicated by the SSB index.

[0084] Method 6: If the second parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates that access is prohibited, the first communication node prohibits access to the cell.

[0085] Method 7: When the second parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates access, the first communication node accesses the cell.

[0086] When the second parameter includes the spare bit field of the physical broadcast channel, the spare bit field indicates access or access denial; for example, 0 indicates access and 1 indicates access denial. As a second type of communication node, if the spare bit field of the physical broadcast channel indicates access denial, the first communication node is prohibited from accessing the cell; if the spare bit field of the physical broadcast channel indicates access, the first communication node can access the cell. The first communication node can access the cell by detecting the SSB indicated by the SSB index.

[0087] In some embodiments, where the second parameter includes the cyclic redundancy check mask of the physical broadcast channel, the second communication node, as a second type of communication node, can detect synchronous broadcast blocks.

[0088] For example, the second communication node can configure the SSB to indicate the operating mode of the first communication node. The configurations of the first type of SSB and the second type of SSB can be different. For example, the configuration of the second type of SSB can be at least one of the following:

[0089] Configure the PBCH CRC mask for the second type of SSB;

[0090] Configure the PBCH k of the second type SSB SSB The bit field has a specific value;

[0091] Configure the cellBarred bit field of the PBCH of the second type SSB to be disabled;

[0092] Configure the PBCH k of the second type SSB SSB The bit field is either prohibited or not prohibited;

[0093] Configure the spare bit field of the PBCH of the second type SSB to be disabled or not disabled.

[0094] This application embodiment indicates the working mode of the communication node through a second parameter. The second parameter indicates the working mode of different types of first communication nodes, which makes it convenient for the first communication node to determine whether it needs to detect the SSB or access the cell, ensuring that different types of communication nodes can work effectively and reasonably.

[0095] In some embodiments, when the first communication node is a second type of communication node, it further includes at least one of the following:

[0096] k via the physical broadcast channel of the first type of synchronous broadcast block SSB The bit field is used to obtain the synchronous broadcast block subcarrier offset or the global synchronization channel number offset.

[0097] k via the physical broadcast channel of the second type of synchronous broadcast block SSB The bit field retrieves the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number.

[0098] When the first communication node is a type II communication node, it can obtain the synchronization broadcast block subcarrier offset or the global synchronization channel number offset through the k of the PBCH of the type I SSB. SSB Bit field acquisition, or via k of the PBCH of the second type SSB. SSB Bit field acquisition, or simultaneously through the k of the PBCH of the above two SSBs. SSB Bit field acquisition. For example, when the k of the PBCH of the second type SSB... SSB The bit field is configured to a set value, k of PBCH of the second type SSB. SSB The bit field cannot carry the synchronous broadcast block subcarrier offset or the global synchronization channel number offset; therefore, the first communication node can use the k of the PBCH of the first type of SSB. SSB The bit field retrieves the synchronization broadcast block subcarrier offset or the global synchronization channel number offset. When k of the PBCH of the second type SSB... SSB When the bit field carries the synchronization broadcast block subcarrier offset or the global synchronization channel number offset, the first communication node can use the k of the PBCH of the second type SSB. SSB The bit field retrieves the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number.

[0099] This application provides a method for obtaining the synchronous broadcast block subcarrier offset or the global synchronization channel number offset. When the first communication node is a type II communication node, the synchronous broadcast block subcarrier offset or the global synchronization channel number offset can be obtained through one or more of the above methods. In the case of the second type SSB's PBCH k... SSB If the bit field is occupied, ensure that the first communication node can obtain the synchronous broadcast block subcarrier offset or the global synchronous channel number offset.

[0100] In some embodiments, the time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following:

[0101] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame;

[0102] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames;

[0103] The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames.

[0104] Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

[0105] When there are multiple Type II synchronization broadcast blocks, they can be divided into two parts, referred to as the first part and the second part, respectively. The Type I synchronization broadcast block can be in the same half-frame as the first part of the Type II synchronization broadcast block, and in a different half-frame than the second part of the Type II synchronization broadcast block. Alternatively, the first part of the Type II synchronization broadcast block and the second part of the Type II synchronization broadcast block can be considered to be in different half-frames.

[0106] In some embodiments, the first type of SSB and the second type of SSB may be continuous or discontinuous; the first part of the SSB and the second part of the SSB in the second type of SSB may be continuous or discontinuous.

[0107] It should be noted that the first part of the synchronous broadcast block in the second type of synchronous broadcast block can also be called the first part of the second type of SSB, and the second part of the synchronous broadcast block in the second type of synchronous broadcast block can also be called the second part of the second type of SSB.

[0108] This application provides various temporal location relationships between first-type SSBs and second-type SSBs. Communication nodes can transmit SSBs according to one or more of the above temporal location relationships, making SSB transmission more flexible.

[0109] In some embodiments, the first type of synchronous broadcast block and the second type of synchronous broadcast block satisfy at least one of the following:

[0110] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers;

[0111] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

[0112] In this embodiment, the first type of SSB and the second type of SSB can correspond to the same set of Global Synchronization Channel Numbers (GSCNs), or they can correspond to different sets of GSCNs. Each GSCN in the GSCN set corresponds to a Synchronization Raster (SR).

[0113] In some embodiments, when the first communication node is a second type of communication node, it further includes at least one of the following:

[0114] Detect the synchronization broadcast block located in the synchronization grating corresponding to the first global synchronization channel number set;

[0115] Detect the synchronization broadcast block located in the synchronization grating corresponding to the second global synchronization channel number set.

[0116] In this embodiment, both the first GSCN set and the second GSCN set are the same type of GSCN set. The first global synchronization channel number set is the GSCN set corresponding to the first type of SSB. It can be the GSCN set corresponding to the first type of SSB when the first type of SSB and the second type of SSB correspond to the same GSCN set, or it can be considered the GSCN set corresponding to the second type of SSB. The second global synchronization channel number set is the GSCN set corresponding to the second type of SSB. It can be the GSCN set corresponding to the second type of SSB when the first type of SSB and the second type of SSB correspond to different GSCN sets. When the first communication node is a second type of communication node, it can detect SSBs located at the SR corresponding to the first GSCN set, or it can detect SSBs located at the SR corresponding to the second GSCN set, or it can detect both SSBs located at the SR corresponding to the first GSCN set and SSBs located at the SR corresponding to the second GSCN set.

[0117] For example, when the first type of synchronization broadcast block and the second type of synchronization broadcast block correspond to the same set of global synchronization channel numbers, the first set of global synchronization channel numbers and the second set of global synchronization channel numbers are the same set. When the first communication node is a second type of communication node, the first communication node can detect the synchronization broadcast block located at the synchronization grating corresponding to the first set of global synchronization channel numbers, and under normal circumstances, the detection can be successful. When the first communication node is a first type of communication node, the first communication node can detect the synchronization broadcast block located at the synchronization grating corresponding to the first set of global synchronization channel numbers, but for the second type of SSB, the detection may fail. When the first type of synchronization broadcast block and the second type of synchronization broadcast block correspond to different sets of global synchronization channel numbers, the first type of SSB corresponds to the first set of global synchronization channel numbers, and the second type of SSB corresponds to the second set of global synchronization channel numbers. When the first communication node is a second type of communication node, the first communication node can detect the synchronization broadcast block located at the synchronization grating corresponding to the second set of global synchronization channel numbers. When the first communication node is a first type of communication node, the first communication node can detect the synchronization broadcast block located at the synchronization grating corresponding to the first set of global synchronization channel numbers.

[0118] For example, SSB detection can also be described as follows: First-type SSBs and second-type SSBs correspond to the same GSCN set, denoted as the first set (or the first global synchronization channel number set). Both first-type and second-type communication nodes detect SSBs located in the SRs corresponding to the first set, but first-type communication nodes can only successfully detect first-type SSBs, while second-type communication nodes can successfully detect both. Alternatively, first-type SSBs and second-type SSBs correspond to different GSCN sets. The GSCN set corresponding to the second-type SSB is denoted as the second set (or the second global synchronization channel number set), and the GSCN set corresponding to the first-type SSB is denoted as the third set (or the third global synchronization channel number set). Second-type communication nodes detect SSBs located in the SRs corresponding to the second set, and first-type communication nodes detect SSBs located in the SRs corresponding to the third set.

[0119] This application provides various frequency domain positional relationships for first-type SSBs and second-type SSBs. Communication nodes can transmit SSBs according to one or more of the above frequency domain positional relationships, making SSB transmission more flexible.

[0120] In some embodiments, the first symbol index of the SSB can be determined by indication or convention; the first symbol index of the SSB can be related to the subcarrier spacing.

[0121] Figure 2 A flowchart of another communication method provided in one embodiment, such as Figure 2 As shown, the communication method described in this application embodiment is applied to a second communication node. For example, the second communication node may be a base station. The method includes S210:

[0122] S210. Send the first parameter, which is used to indicate the synchronous broadcast block index.

[0123] The first parameter can be carried in the communication message. For example, it can be carried in the relevant information of the Physical Broadcast Channel (PBCH). The first parameter can be carried by one type of information or by a combination of multiple types of information. In other words, the first parameter can include one or more types of information or parameters. When the first parameter includes one or more types of information, the more types of information it can indicate, the more synchronous broadcast blocks it can indicate. For example, when the total number of synchronous broadcast blocks is greater than 256, three types of information can be selected for coordinated indication; when the total number of synchronous broadcast blocks is less than 32, only one type of information needs to be selected. When indicating the index of synchronous broadcast blocks, the number of synchronous broadcast blocks can be considered comprehensively to select the appropriate type of information for indication.

[0124] The second communication node generates a first parameter, which indicates the index of the synchronization broadcast block, and sends the first parameter to the first communication node. The first communication node receives the first parameter. Since the first parameter indicates the index of the synchronization broadcast block, the first communication node can determine the corresponding synchronization broadcast block through the index indicated by the first parameter and can detect the synchronization broadcast block.

[0125] The communication method provided in this application embodiment allows the second communication node to send a first parameter indicating the synchronous broadcast block index, so that the first communication node can determine the synchronous broadcast block through the synchronous broadcast block index indicated by the first parameter. This solves the problem in the prior art that synchronous broadcast blocks cannot be indicated. By uniformly indicating the synchronous broadcast block index through the first parameter, the first communication node only needs to receive the first parameter to determine the synchronous broadcast block index, thereby enabling rapid detection of the synchronous broadcast block.

[0126] In some embodiments, the first parameter includes at least one of the following:

[0127] Parameter i in the demodulation reference signal sequence of the physical broadcast channel SSB ;

[0128] Physical broadcast channel Bit field;

[0129] Physical broadcast channel Bit field;

[0130] Physical broadcast channel Bit field;

[0131] The spare bit field of the physical broadcast channel;

[0132] The half-frame bit field of the physical broadcast channel;

[0133] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0134] The Synchronization Broadcast Block Index (SSB index) bit field of the Physical Broadcast Channel.

[0135] In some embodiments, when the first parameter includes at least two types of parameters, the maximum value of the synchronous broadcast block index indicated by the first parameter is determined based on the sum of the bit lengths corresponding to the at least two types of parameters.

[0136] In some embodiments, the synchronous broadcast block corresponding to the synchronous broadcast block index is a first type of synchronous broadcast block or a second type of synchronous broadcast block.

[0137] In some embodiments, the method further includes:

[0138] Send the second parameter, which is used to indicate the operating mode of the first communication node.

[0139] In some embodiments, the second parameter includes at least one of the following:

[0140] The free bit field of the physical broadcast channel;

[0141] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0142] k of the physical broadcast channel SSB Bit field;

[0143] The cellBarred bit field of the physical broadcast channel.

[0144] In some embodiments, the time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following:

[0145] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame;

[0146] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames;

[0147] The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames.

[0148] Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

[0149] In some embodiments, the first type of synchronous broadcast block and the second type of synchronous broadcast block satisfy at least one of the following:

[0150] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers;

[0151] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

[0152] Figure 3 A flowchart of another communication method provided in one embodiment, such as Figure 3 As shown, the communication method described in this application embodiment is applied to a third communication node. For example, the third communication node may be a base station or a user equipment. The method includes S310:

[0153] S310. Determine the repetition information of the synchronization broadcast block based on the third parameter.

[0154] In this embodiment, the third parameter can be pre-agreed upon. For example, the third communication node is a base station, and the base station can pre-agre with the UE to agree on the third parameter; or, the third communication node is a user equipment, and the user equipment can pre-agre with the base station to agree on the third parameter. For example, the third parameter can be information related to the physical broadcast channel. Repetition information can be understood as information related to the reuse of the SSB, such as the number of repetitions, the time-domain interval of reuse, the frequency-domain interval, etc.

[0155] After the third communication node determines the third parameter, it can determine the repetition information of the synchronization broadcast block based on the third parameter. For example, it can perform scanning detection based on the third parameter to determine the repetition information of the SSB, or receive the third parameter and determine the repetition information of the SSB based on the received third parameter, and so on. Different methods can be used to determine the repetition information of the SSB for different types of third parameters.

[0156] In existing technologies, SSBs are used only once and are not reused. This application proposes increasing the number of SSBs by reusing them, and provides a method for indicating the reuse of SSBs. The reuse information of an SSB is determined by a third parameter, facilitating the sending or detection of SSBs by a third communication node.

[0157] The communication method provided in this application embodiment allows the third communication node to determine the repetition information of the SSB based on the third parameter, thus solving the problem in the prior art that it is impossible to indicate the synchronous broadcast block. By determining the repetition information of the SSB through the third parameter, the SSB can be reused. The third communication node only needs to determine the repetition information of the SSB based on the third parameter to realize the reuse of the synchronous broadcast block.

[0158] In some embodiments, the third parameter includes at least one of the following:

[0159] Frequency range;

[0160] frequency band;

[0161] carrier wave;

[0162] Partial bandwidth;

[0163] Subcarrier spacing;

[0164] residential community;

[0165] Master synchronization signal sequence;

[0166] Auxiliary synchronization signal sequence;

[0167] Physical broadcast channel demodulation reference signal sequence;

[0168] The number of symbols between the primary synchronization signal and the secondary synchronization signal;

[0169] The number of symbols between the master synchronization signal and the physical broadcast channel;

[0170] The number of symbols between the auxiliary synchronization signal and the physical broadcast channel.

[0171] For example, if the third parameter includes a frequency range, and the third communication node is a UE, the third communication node can determine the repetition information by scanning the frequency range. For example, scanning the frequency range FR1 determines that the SSB is repeated and the number of repetitions is 2.

[0172] In some embodiments, the repeating information includes at least one of the following:

[0173] Is it a duplicate?

[0174] Number of repetitions.

[0175] For example, for frequency range FR1, the SSB repeats twice; for frequency range FR2, the SSB does not repeat. The third communication node scans frequency range FR1 and determines that the SSB repeats twice.

[0176] In some embodiments, the synchronous broadcast block is a first type of synchronous broadcast block or a second type of synchronous broadcast block.

[0177] In some embodiments, when the third communication node is a base station, the method further includes:

[0178] Send the fourth parameter, which indicates the operating mode of the fourth communication node.

[0179] In this embodiment, the fourth parameter can be understood as a parameter used to indicate the operating mode of the fourth communication node. For example, it may indicate whether the first communication node receives a certain message, detects a certain SSB, or accesses a cell, etc. For example, the fourth communication node is a UE. The fourth parameter indicates how the fourth communication node should operate. The fourth parameter can be sent by the third communication node, received by the fourth communication node, and the fourth communication node determines its operating mode based on the indication of the fourth parameter. The fourth parameter operates on the same principle as the second parameter, and its indication of the fourth communication node's operating mode can be found in the description of the second parameter indicating the operating mode of the first communication node.

[0180] In some embodiments, when the third communication node is a user equipment, the method further includes:

[0181] Receive the fourth parameter, which indicates the operating mode of the third communication node.

[0182] The fourth parameter indicates the working mode of the third communication node. Refer to the relevant description of the working mode of the fourth communication node mentioned above or the relevant description of the working mode of the first communication node mentioned above. It will not be repeated here.

[0183] In some embodiments, the fourth parameter includes at least one of the following:

[0184] The free bit field of the physical broadcast channel;

[0185] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0186] k of the physical broadcast channel SSB Bit field;

[0187] The cellBarred bit field of the physical broadcast channel.

[0188] In some embodiments, the method further includes:

[0189] The operating mode of the third communication node is determined based on the fourth parameter.

[0190] The third communication node determines its operating mode based on the indication of the fourth parameter. For example, it determines whether the communication node should access the cell based on the indication of the fourth parameter. When determining the operating mode of the communication node, the type of the communication node can also be considered, and the operating mode can be determined based on the type of the communication node and the indication of the fourth parameter.

[0191] In some embodiments, when the third communication node is a first-type communication node, the operating mode of the third communication node is determined according to the fourth parameter, including at least one of the following:

[0192] When the fourth parameter includes the cyclic redundancy check mask for the physical broadcast channel, the third communication node cannot detect the synchronization broadcast block;

[0193] The fourth parameter includes k, which is the physical broadcast channel. SSB k in the bit field and physical broadcast channel SSB When the bit field is set to a specific value, the third communication node ignores the synchronization broadcast block;

[0194] If the fourth parameter includes the cellBarred bit field of the physical broadcast channel and the cellBarred bit field of the physical broadcast channel indicates that access is prohibited, the third communication node is prohibited from accessing the cell.

[0195] In some embodiments, when the third communication node is a type II communication node, the operating mode of the third communication node is determined according to the fourth parameter, including at least one of the following:

[0196] The fourth parameter includes k, which is the physical broadcast channel.SSB k in the bit field and physical broadcast channel SSB When the bit field indicates that access is prohibited, the third communication node is prohibited from accessing the cell;

[0197] The fourth parameter includes k, which is the physical broadcast channel. SSB k in the bit field and physical broadcast channel SSB When the bit field indicates access, the third communication node accesses the cell;

[0198] If the fourth parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates that access is prohibited, the third communication node is prohibited from accessing the cell.

[0199] When the fourth parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates access, the third communication node accesses the cell.

[0200] When the third communication node is a first-type communication node, the implementation principle of determining the working mode of the third communication node based on the fourth parameter is the same as the implementation principle of determining the working mode of the first communication node based on the second parameter when the first communication node is a first-type communication node. Refer to the description in the above embodiments; further details will not be repeated here. Similarly, when the third communication node is a second-type communication node, the implementation principle of determining the working mode of the third communication node based on the fourth parameter is the same as the implementation principle of determining the working mode of the first communication node based on the second parameter when the first communication node is a second-type communication node. Refer to the description in the above embodiments; further details will not be repeated here.

[0201] In some embodiments, when the third communication node is a second type of communication node, it further includes at least one of the following:

[0202] k via the physical broadcast channel of the first type of synchronous broadcast block SSB The bit field is used to obtain the synchronous broadcast block subcarrier offset or the global synchronization channel number offset.

[0203] k via the physical broadcast channel of the second type of synchronous broadcast block SSB The bit field retrieves the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number.

[0204] When the third communication node is a type 2 communication node, it communicates via the k-th communication node of the PBCH of the type 1 SSB. SSB bit field and / or k of PBCH of type 2 SSB SSB The method for obtaining the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number in the bit field can refer to the method for obtaining the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number when the first communication node is a second type of communication node.

[0205] In some embodiments, the time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following:

[0206] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame;

[0207] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames;

[0208] The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames.

[0209] Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

[0210] In some embodiments, the first type of SSB and the second type of SSB may be continuous or discontinuous; the first part of the SSB and the second part of the SSB in the second type of SSB may be continuous or discontinuous.

[0211] The specific implementation of the above description of the time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block can be found in the relevant description of the above embodiments, and will not be repeated here.

[0212] In some embodiments, the first type of synchronous broadcast block and the second type of synchronous broadcast block satisfy at least one of the following:

[0213] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers;

[0214] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

[0215] In some embodiments, when the third communication node is a second type of communication node, it further includes at least one of the following:

[0216] Detect the synchronization broadcast block located in the synchronization grating corresponding to the first global synchronization channel number set;

[0217] Detect the synchronization broadcast block located in the synchronization grating corresponding to the second global synchronization channel number set.

[0218] When the third communication node is a type II communication node, its principle for detecting SSBs is the same as that when the first communication node is a type II communication node. Refer to the relevant description of SSB detection when the first communication node is a type II communication node; it will not be repeated here. Alternatively, this first global synchronization channel number set can be referred to as the third global synchronization channel number set, and this second global synchronization channel number set as the fourth global synchronization channel number set. The principle is the same, and specific implementation details can be found in the description of the above embodiments.

[0219] In some embodiments, the first symbol index of the SSB can be determined by indication or convention; the first symbol index of the SSB can be related to the subcarrier spacing.

[0220] The communication method provided in the above embodiments of this application will be described below with reference to some exemplary implementation methods. In some exemplary implementation methods, the first communication node is a UE, the second communication node is a base station, and the third communication node is either a UE or a base station, as an example for explanation.

[0221] Implementation Method 1:

[0222] This embodiment describes the SSB index indication.

[0223] Figure 4a An example diagram of an SSB index is provided, such as... Figure 4a As shown, one SSB corresponds to one SSB index, and the SSB index is different within the SSB cycle.

[0224] Figure 4b Another example diagram of SSB indexes is provided, such as Figure 4b As shown, one SSB corresponds to one SSB index, and the SSB indexes are different within a certain bandwidth (carrier or partial bandwidth).

[0225] In some implementations, the first parameter includes at least one of the following parameters to indicate the SSB index:

[0226] i in PBCH DMRS sequence SSB This is equivalent to x1 bits, for example, x1 = 3;

[0227] PBCH The bit field corresponds to x2 bits, for example, x2 = 3;

[0228] The spare bit field of PBCH corresponds to x3 bits, for example, x3 = 1;

[0229] The half-frame bit field of PBCH corresponds to x4 bits, for example, x4 = 1;

[0230] The PBCH cyclic redundancy check (CRC) mask is equivalent to x5 bits, for example, x5 = log2(M), where M is the number of states of the PBCH CRC mask used;

[0231] The SSB index bit field of PBCH corresponds to x6 bits, for example, x6 = 8.

[0232] In some implementations, the PBCH CRC mask scrambles the PBCH CRC. The scrambling refers to performing an XOR operation between the PBCH CRC mask and the PBCH CRC, or the scrambling refers to performing an XNOR operation between the PBCH CRC mask and the PBCH CRC.

[0233] In some implementations, the PBCH CRC mask length is the same as the PBCH CRC length; for example, if the PBCH CRC length is 24 bits, then any 24 bits composed of 0s and 1s can be used as the PBCH CRC mask, meaning the maximum value of M is 2. 24 For ease of explanation, we will use M=2 as an example, which is equivalent to x5=log2(M)=1. Here, M=2 means that there are 2 PBCH CRC masks available. For example, the PBCH CRC length is 24 bits, and any two of the following 24-bit states can be used as PBCH CRC masks, such as PBCH CRC mask2 and PBCH CRC mask3.

[0234] PBCH CRC mask0: {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

[0235] PBCH CRC mask1: {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};

[0236] PBCH CRC mask2: {0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1};

[0237] PBCH CRC mask3: {1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0}.

[0238] For example, at least one of the following methods may be used to indicate the SSB index:

[0239] (1) i in the PBCH DMRS sequenceSSB Indicates the SSB index; for example, if b1 = x1 = 3, the SSB index that can be indicated is {0, 1, ..., 2}. b1 -1}, that is, the SSB index is {0,1,...,7};

[0240] (2) PBCH Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, if b2 = x2 + x1 = 6, the SSB index that can be indicated is {0, 1, ..., 2}. b2 -1}, that is, the SSB index is {0,1,...,63};

[0241] (3) The spare bit field of PBCH, and the i in the PBCH DMRS sequence SSB Indicates the SSB index. For example, if b3 = x3 + x1 = 4, the SSB index that can be indicated is {0, 1, ..., 2}. b3 -1}, that is, the SSB index is {0,1,...,15};

[0242] (4) The spare bit field of PBCH, PBCH Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, if b4 = x3 + x2 + x1 = 7, the SSB index that can be indicated is {0, 1, ..., 2}. b4 -1}, that is, the SSB index is {0,1,...,127};

[0243] (5) The half-frame bit field of PBCH, and the i in the PBCH DMRS sequence SSB Indicates the SSB index. For example, if b5 = x4 + x1 = 4, the SSB index that can be indicated is {0, 1, ..., 2}. b5 -1}, that is, the SSB index is {0,1,...,15};

[0244] (6) The half-frame bit field of PBCH, PBCH Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, if b6 = x4 + x2 + x1 = 7, the SSB index that can be indicated is {0, 1, ..., 2}. b6 -1}, that is, the SSB index is {0,1,...,127};

[0245] (7) The half-frame bit field of PBCH, the spare bit field of PBCH, and the i in the PBCH DMRS sequence. SSBIndicates the SSB index. For example, if b7 = x4 + x3 + x1 = 5, the SSB index that can be indicated is {0, 1, ..., 2}. b7 -1}, that is, the SSB index is {0,1,...,31};

[0246] (8) The half frame bit field of PBCH, the spare bit field of PBCH, and the PBCH... Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, if b8 = x4 + x3 + x2 + x1 = 8, the SSB index that can be indicated is {0, 1, ..., 2}. b8 -1}, that is, the SSB index is {0,1,...,255}.

[0247] (9) PBCH CRC mask, PBCH DMRS sequence in i SSB Indicates the SSB index. For example, if b9 = x5 + x1 = 4, the SSB index that can be indicated is {0, 1, ..., 2}. b9 -1}, that is, the SSB index is {0,1,...,15};

[0248] (10) PBCH CRC mask, PBCH Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, if b10 = x5 + x2 + x1 = 7, the SSB index that can be indicated is {0, 1, ..., 2}. b10 -1}, that is, the SSB index is {0,1,...,127};

[0249] (11) PBCH CRC mask, PBCH spare bit field, and i in the PBCH DMRS sequence SSB Indicates the SSB index. For example, if b11 = x5 + x3 + x1 = 5, the SSB index that can be indicated is {0, 1, ..., 2}. b11 -1}, that is, the SSB index is {0,1,...,31};

[0250] (12) PBCH CRC mask, PBCH spare bit field, PBCH Bit field, i in PBCHDMRS sequence SSB Indicates the SSB index. For example, b12 = x5 + x3 + x2 + x1 = 8, which can indicate SSB indices {0, 1, ..., 2}. b12 -1}, that is, the SSB index is {0,1,...,255};

[0251] (13) PBCH CRC mask, PBCH half-frame bit field, and PBCH DMRS sequence i SSB Indicates the SSB index. For example, if b13 = x5 + x4 + x1 = 5, the SSB index that can be indicated is {0, 1, ..., 2}. b13 -1}, that is, the SSB index is {0,1,...,31};

[0252] (14) PBCH CRC mask, PBCH half-frame bit field, PBCH Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, b14 = x5 + x4 + x2 + x1 = 8, which can indicate the SSB index {0, 1, ..., 2}. b14 -1}, that is, the SSB index is {0,1,...,255};

[0253] (15) PBCH CRC mask, PBCH half frame bit field, PBCH spare bit field, PBCH DMRS sequence i SSB Indicates the SSB index. For example, b15 = x5 + x4 + x3 + x1 = 6, which can indicate SSB indices {0, 1, ..., 2}. b15 -1}, that is, the SSB index is {0,1,...,63};

[0254] (16) PBCH CRC mask, PBCH half frame bit field, PBCH spare bit field, PBCH... Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, b16 = x5 + x4 + x3 + x2 + x1 = 9, which can indicate SSB indices {0, 1, ..., 2}. b16 -1}, that is, the SSB index is {0,1,...,511};

[0255] (17) The SSB index bit field of PBCH indicates the SSB index. For example, if b17 = x6 = 8, the SSB index that can be indicated is {0, 1, ..., 2}. b17 -1}, that is, the SSB index is {0,1,...,255};

[0256] (18) The SSB index bit field of PBCH, and the i in the PBCH DMRS sequence SSB Indicates the SSB index; for example, b18 = x6 + x1 = 11, which can indicate SSB indices {0, 1, ..., 2}.b18 -1}, that is, the SSB index is {0,1,...,2047};

[0257] (19) The SSB index bit field of PBCH, PBCH Bit field, i in PBCH DMRS sequence SSB Indicates the SSB index. For example, b19 = x6 + x2 + x1 = 14, which can indicate SSB indices {0, 1, ..., 2}. b19 -1}, that is, the SSB index is {0,1,...,16383};

[0258] Implementation Method Two:

[0259] This embodiment illustrates the method for repeated SSB indication.

[0260] Figure 5a Another example diagram of SSB index is provided. Figure 5b Another example diagram of SSB indexes is provided, such as Figure 5a and Figure 5b As shown, one SSB corresponds to one SSB index, and the SSB index can be the same within the same SSB period.

[0261] Figure 5c Another example diagram of SSB index is provided. Figure 5d Another example diagram of SSB indexes is provided, such as Figure 5c and Figure 5d As shown, one SSB corresponds to one SSB index, and the SSB indices can be the same within a certain bandwidth (carrier or partial bandwidth).

[0262] In some implementations, at least one of the following parameters is included to determine whether an SSB is repeated: frequency range (FR), band, carrier, partial bandwidth (BWP), subcarrier spacing (SCS), and cell.

[0263] That is, the third parameter includes at least one of the following: FR, band, carrier, BWP, SCS, cell.

[0264] For example:

[0265] For FR1, SSB is not repeated; for FR2, SSB is repeated.

[0266] For band 1, SSBs do not repeat; for band 2, SSBs repeat.

[0267] For carrier1, the SSB is not repeated; for carrier2, the SSB is repeated.

[0268] For BWP1, SSB is not repeated; for BWP2, SSB is repeated.

[0269] For SCS1, SSB is not repeated; for SCS2, SSB is repeated.

[0270] For cell1, SSB is not repeated; for cell2, SSB is repeated.

[0271] In some implementations, at least one of the following parameters is included to determine the number of SSB repetitions: FR, band, carrier, BWP, SCS, cell.

[0272] For example:

[0273] For FR1, SSB is repeated twice; for FR2, SSB is repeated four times.

[0274] For band1, SSB is repeated twice; for band2, SSB is repeated four times.

[0275] For carrier1, SSB is repeated twice; for carrier2, SSB is repeated four times.

[0276] For BWP1, SSB is repeated twice; for BWP2, SSB is repeated four times.

[0277] For SCS1, SSB is repeated twice; for SCS2, SSB is repeated four times.

[0278] For cell1, SSB is repeated twice; for cell2, SSB is repeated four times.

[0279] In some implementations, at least one of the following parameters is included to determine whether the SSB is repeated: PSS sequence, SSS sequence, PBCH DMRS sequence, number of symbols in the PSS-SSS interval, number of symbols in the PSS-PBCH interval, and number of symbols in the SSS-PBCH interval.

[0280] That is, the third parameter includes at least one of the following: PSS sequence, SSS sequence, PBCH DMRS sequence, number of symbols in the PSS and SSS interval, number of symbols in the PSS and PBCH interval, and number of symbols in the SSS and PBCH interval.

[0281] For example:

[0282] For PSS sequence 1, SSB is not repeated; for PSS sequence 2, SSB is repeated.

[0283] For SSS sequence 1, SSB is not repeated; for SSS sequence 2, SSB is repeated.

[0284] For PBCH DMRS sequence 1, the SSB is not repeated; for PBCH DMRS sequence 2, the SSB is repeated.

[0285] For the number of symbols U1 between PSS and SSS, SSB is not repeated; for the number of symbols U2 between PSS and SSS, SSB is repeated.

[0286] For a symbol count V1 between PSS and PBCH, SSB is not repeated; for a symbol count V2 between PSS and PBCH, SSB is repeated.

[0287] For a symbol count W1 between SSS and PBCH, SSBs are not repeated; for a symbol count W2 between SSS and PBCH, SSBs are repeated.

[0288] In some implementations, at least one of the following parameters is included to determine the number of SSB repetitions: PSS sequence, SSS sequence, PBCH DMRS sequence, number of symbols in the PSS-SSS interval, number of symbols in the PSS-PBCH interval, and number of symbols in the SSS-PBCH interval.

[0289] For example:

[0290] For PSS sequence 1, SSB is repeated 2 times; for PSS sequence 2, SSB is repeated 4 times.

[0291] For SSS sequence 1, SSB is repeated 2 times; for SSS sequence 2, SSB is repeated 4 times.

[0292] For PBCH DMRS sequence 1, SSB is repeated 2 times; for PBCH DMRS sequence 2, SSB is repeated 4 times.

[0293] For the number of symbols U1 between PSS and SSS, SSB is repeated twice; for the number of symbols U2 between PSS and SSS, SSB is repeated four times.

[0294] For the number of symbols V1 between PSS and PBCH, SSB is repeated twice; for the number of symbols V2 between PSS and PBCH, SSB is repeated four times.

[0295] For a symbol interval W1 between SSS and PBCH, SSB is repeated twice; for a symbol interval W2 between SSS and PBCH, SSB is repeated four times.

[0296] Implementation Method 3:

[0297] This implementation method describes the working mode of different types of UEs:

[0298] Suppose there are two types of UEs. The first type of UE only receives a portion of the SSBs (these SSBs are called the first type of SSBs, and the other SSBs are called the second type of SSBs, where each type of SSB includes one or more SSBs). The second type of UE only receives the other part of the SSBs or receives all the SSBs.

[0299] In some implementations, at least one of the following parameters is included to indicate the operating mode of different types of UEs:

[0300] The spare bit field of PBCH corresponds to x3 bits, preferably x3 = 1;

[0301] The PBCH cyclic redundancy check (CRC) mask corresponds to x5 bits. Preferably, x5 = ceil(log2(M)), where M is the number of states of the PBCH CRC mask used.

[0302] PBCH's k SSB The bit field corresponds to x7 bits, preferably x7 = 4;

[0303] The cellBarred bit field of PBCH corresponds to x8 bits, preferably x8 = 1.

[0304] That is, the second or fourth parameter includes at least one of the following: the free bit field of the physical broadcast channel, the cyclic redundancy check mask of the physical broadcast channel, and the k-value of the physical broadcast channel. SSB Bit field, cellBarred bit field of physical broadcast channel.

[0305] For example, at least one of the following methods can be used to indicate the operating mode of different types of UEs:

[0306] (1) The PBCH CRC mask of the second-type SSB scrambles the PBCH CRC of the second-type SSB, preventing the first-type UE from detecting the second-type SSB. In some implementations, the second-type UE detects the second-type SSB through the k of the PBCH of the second-type SSB. SSB The bit field is used to obtain the SSB subcarrier offset or the global synchronization channel number offset.

[0307] (2) Configure the k of the PBCH of the second type SSB SSB For a specific bit field value (e.g., binary 1110 or 11110, decimal 14 or 30), the first type of UE detects the k of the PBCH of the second type of SSB. SSB A specific value in the bit field indicates that the SSB is ignored. In some implementations, the second type of UE uses the k-th bit of the PBCH of the first type of SSB. SSBThe bit field is used to obtain the SSB subcarrier offset or the global synchronization channel number offset.

[0308] (3) Configure the cellBarred bit field of the PBCH of the second type SSB to be disabled, and configure the k of the PBCH of the second type SSB to be disabled. SSB If the bit field indicates whether access to the cell is prohibited or not, the first type of UE determines whether to prohibit cell access based on the cellBarred bit field of the PBCH of the second type of SSB, while the second type of UE determines whether to prohibit access based on the k bit field of the PBCH of the second type of SSB. SSB The bit field determines whether cell access is prohibited. In some implementations, the second-type UE determines this through the k-bit field of the PBCH of the second-type SSB. SSB The bit field is used to obtain the SSB subcarrier offset or the global synchronization channel number offset.

[0309] (4) Configure the cellBarred bit field of the PBCH of the second type SSB to be disabled, and configure the spare bit field of the PBCH of the second type SSB to be disabled or not disabled. The first type UE determines whether to prohibit cell access based on the cellBarred bit field of the PBCH of the second type SSB, and the second type UE determines whether to prohibit cell access based on the spare bit field of the PBCH of the second type SSB. In some implementations, the second type UE determines whether to prohibit cell access based on the k bit field of the PBCH of the second type SSB. SSB The bit field is used to obtain the SSB subcarrier offset or the global synchronization channel number offset.

[0310] Implementation Method Four:

[0311] This implementation describes the time-domain location of the SSB:

[0312] Figure 6a An example diagram of the SSB time-domain location is provided, such as... Figure 6a As shown, Type I SSB and Type II SSB are in the same half-frame.

[0313] Figure 6b Another example diagram of the SSB time-domain location is provided, such as Figure 6b As shown, the first type of SSB and the second type of SSB are in different half-frames.

[0314] Figure 6c Another example diagram of the SSB time-domain location is provided, such as Figure 6c As shown, the first type of SSB and the first part of the second type of SSB are in the same half frame, while the second part of the second type of SSB is in a different half frame.

[0315] Figure 6d Another example diagram of the SSB time-domain location is provided, such as Figure 6d As shown, Type I SSB and Type II SSB are in different radio frames.

[0316] Figures 6a-6d In the SSB, Type 1 SSB is the first type of SSB, and Type 2 SSB is the second type of SSB.

[0317] In some implementations, the first type of SSB and the second type of SSB may be continuous or discontinuous; the first part of the second type of SSB and the second part of the second type of SSB may be continuous or discontinuous.

[0318] Implementation Method 5:

[0319] This embodiment describes the SSB frequency domain location.

[0320] The first type of SSB and the second type of SSB correspond to the same set of GSCNs. Each GSCN in the set of GSCNs corresponds to an SR. Both the first type of UE and the second type of UE detect the SSB located in the SR corresponding to this GSCN set. This SR can be called the first type of SR. Figure 7a An example diagram of the SSB frequency domain location is provided, such as... Figure 7a As shown in the figure, the solid and dashed arrows represent SRs corresponding to the same GSCN set, which can all be called Type 1 SRs. Due to the configuration of the second (or fourth) parameter, Type 1 UEs can only successfully detect the SSB of the SR represented by the solid arrow, but cannot successfully detect the SSB of the SR represented by the dashed arrow. Type 2 UEs can successfully detect the SSB of the SRs represented by both the solid and dashed arrows.

[0321] The first type of SSB and the second type of SSB correspond to different GSCN sets. Each GSCN in the GSCN set corresponds to an SR. The first type of UE detects the SSB located in the first type of SR, and the second type of UE detects the SSB located in the second type of SR. The first type of SR is the SR corresponding to the GSCN set corresponding to the first type of SSB, and the second type of SR is the SR corresponding to the GSCN set corresponding to the second type of SSB. Figure 7b Another example diagram of the SSB frequency domain location is provided, such as Figure 7b As shown in the figure, the solid and dashed arrows represent SRs corresponding to different GSCN sets. The solid arrows represent Type 1 SRs, and the dashed arrows represent Type 2 SRs. Type 1 UEs can detect SSBs of SRs represented by solid arrows; Type 2 UEs can detect SSBs of SRs represented by dashed arrows.

[0322] In some implementations, when the first type of SSB and the second type of SSB correspond to the same GSCN set, this GSCN set can be denoted as the first GSCN set, and both the first type of UE and the second type of UE detect the SSB located in the SR corresponding to the first GSCN set. When the first type of SSB and the second type of SSB correspond to different GSCN sets, the GSCN set corresponding to the second type of SSB can be denoted as the second GSCN set, and the second type of UE detects the SSB located in the SR corresponding to the second GSCN set; the GSCN set corresponding to the first type of SSB can be denoted as the first GSCN set or the third GSCN set, and the first type of UE detects the SSB located in the SR corresponding to the first GSCN set or the third GSCN set.

[0323] Implementation Method Six:

[0324] This embodiment describes how to determine the first symbol index of the SSB.

[0325] Figure 8 An example diagram of an SSB symbol is provided, such as... Figure 8 As shown, for example, an SSB can consist of 4 symbols, and the index of the first symbol of an SSB is shown below.

[0326] Case A: The SSB subcarrier spacing is 15kHz, and the first symbol index of the SSB is {2, 8} + 14*n;

[0327] n = 0, 1, 2, 3, 4.

[0328] Case B: The SSB subcarrier spacing is 30kHz, and the first symbol index of the SSB is {4, 8, 16, 20} + 28*n;

[0329] n = 0, 1, 2, 3, 4.

[0330] Case C: The SSB subcarrier spacing is 30kHz, and the first symbol index of the SSB is {2, 8} + 14*n;

[0331] n=0,1,2,3,4,5,6,7,8,9.

[0332] Case D: The SSB subcarrier spacing is 120kHz, and the first symbol index of the SSB is {4, 8, 16, 20} + 28*n;

[0333] n = 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, or

[0334] n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19.

[0335] Case E: The SSB subcarrier spacing is 240kHz, and the first symbol index of the SSB is {8, 12, 16, 20, 32, 36, 40, 44} + 56*n;

[0336] n = 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18 or

[0337] n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19.

[0338] Case F: The SSB subcarrier spacing is 480kHz, and the first symbol index of the SSB is {2, 9} + 14*n;

[0339] n=0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,...,157,158,159.

[0340] Case G: The SSB subcarrier spacing is 960kHz, and the first symbol index of the SSB is {2, 9} + 14*n;

[0341] n=0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,...,317,318,319.

[0342] Case H: The SSB subcarrier spacing is 60kHz, and the first symbol index of the SSB is {2, 8} + 14*n;

[0343] n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19.

[0344] Case I: The SSB subcarrier spacing is 60kHz, and the first symbol index of the SSB is {4, 8, 16, 20} + 28*n;

[0345] n=0,1,2,3,4,5,6,7,8,9.

[0346] Case J: The SSB subcarrier spacing is 60kHz, and the first symbol index of the SSB is {8, 12, 16, 20, 32, 36, 40, 44} + 56*n;

[0347] n = 0, 1, 2, 3, 4.

[0348] Figure 9 This is a schematic diagram of a communication device provided in one embodiment. The device is applied to a first communication node, such as... Figure 9 As shown, the device includes: a first parameter receiving module 410.

[0349] The first parameter receiving module 410 is used to receive a first parameter, which is used to indicate the synchronous broadcast block index.

[0350] The communication device provided in this application embodiment includes a first communication node receiving a first parameter. The first parameter is used to indicate the synchronous broadcast block index. By indicating the synchronous broadcast block index through the first parameter, the first communication node can determine the synchronous broadcast block through the synchronous broadcast block index indicated by the first parameter, thus solving the problem that the synchronous broadcast block cannot be indicated in the prior art. By uniformly indicating the synchronous broadcast block index through the first parameter, the first communication node only needs to receive the first parameter to determine the synchronous broadcast block index, thereby enabling rapid detection of the synchronous broadcast block.

[0351] In some embodiments, the first parameter includes at least one of the following:

[0352] Parameter i in the demodulation reference signal sequence of the physical broadcast channel SSB ;

[0353] Physical broadcast channel Bit field;

[0354] Physical broadcast channel Bit field;

[0355] Physical broadcast channel Bit field;

[0356] The free bit field of the physical broadcast channel;

[0357] Half-frame bit field of physical broadcast channel;

[0358] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0359] Synchronization broadcast block index bit field of physical broadcast channel.

[0360] In some embodiments, when the first parameter includes at least two types of parameters, the maximum value of the synchronous broadcast block index indicated by the first parameter is determined based on the sum of the bit lengths corresponding to the at least two types of parameters.

[0361] In some embodiments, the synchronous broadcast block corresponding to the synchronous broadcast block index is a first type of synchronous broadcast block or a second type of synchronous broadcast block.

[0362] In some embodiments, the device further includes:

[0363] The second parameter receiving module is used to receive a second parameter, which is used to indicate the working mode of the first communication node.

[0364] In some embodiments, the second parameter includes at least one of the following:

[0365] The free bit field of the physical broadcast channel;

[0366] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0367] k of the physical broadcast channel SSB Bit field;

[0368] The cellBarred bit field of the physical broadcast channel.

[0369] In some embodiments, the device further includes:

[0370] The first operating mode determination module is used to determine the operating mode of the first communication node based on the second parameter.

[0371] In some embodiments, when the first communication node is a first type of communication node, determining the operating mode of the first communication node based on the second parameter includes at least one of the following:

[0372] When the second parameter includes the cyclic redundancy check mask of the physical broadcast channel, the first communication node cannot detect the synchronization broadcast block;

[0373] The second parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field is set to a specific value, the first communication node ignores the synchronization broadcast block;

[0374] If the second parameter includes the cellBarred bit field of the physical broadcast channel and the cellBarred bit field of the physical broadcast channel indicates prohibition, the first communication node is prohibited from accessing the cell.

[0375] In some embodiments, when the first communication node is a second type of communication node, determining the operating mode of the first communication node based on the second parameter includes at least one of the following:

[0376] The second parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates that access is prohibited, the first communication node is prohibited from accessing the cell;

[0377] The second parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates access, the first communication node accesses the cell;

[0378] If the second parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates that access is prohibited, the first communication node prohibits access to the cell.

[0379] When the second parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates access, the first communication node accesses the cell.

[0380] In some embodiments, when the first communication node is a second type of communication node, the apparatus further includes at least one of the following:

[0381] The first offset determination module is used for k via the physical broadcast channel of the first type of synchronization broadcast block. SSB The bit field is used to obtain the synchronous broadcast block subcarrier offset or the global synchronization channel number offset.

[0382] The first offset determination module is used for k via the physical broadcast channel of the second type of synchronization broadcast block. SSB The bit field retrieves the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number.

[0383] In some embodiments, the time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following:

[0384] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame;

[0385] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames;

[0386] The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames.

[0387] Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

[0388] In some embodiments, the first type of synchronous broadcast block and the second type of synchronous broadcast block satisfy at least one of the following:

[0389] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers;

[0390] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

[0391] In some embodiments, when the first communication node is a second type of communication node, the apparatus further includes at least one of the following:

[0392] The first detection module is used to detect the synchronization broadcast block located in the synchronization grating corresponding to the first global synchronization channel number set;

[0393] The second detection module is used to detect the synchronization broadcast block located in the synchronization grating corresponding to the second global synchronization channel number set.

[0394] The communication device proposed in this embodiment belongs to the same inventive concept as the communication method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as the communication method.

[0395] Figure 10 This is a schematic diagram of another communication device provided in one embodiment, which is applied to a second communication node, such as... Figure 10 As shown, the device includes: a first parameter sending module 510.

[0396] The first parameter sending module 510 is used to send the first parameter, which is used to indicate the synchronous broadcast block index.

[0397] The communication device provided in this application embodiment allows the second communication node to send a first parameter indicating the synchronous broadcast block index, so that the first communication node can determine the synchronous broadcast block through the synchronous broadcast block index indicated by the first parameter. This solves the problem in the prior art that synchronous broadcast blocks cannot be indicated. By uniformly indicating the synchronous broadcast block index through the first parameter, the first communication node only needs to receive the first parameter to determine the synchronous broadcast block index, thereby enabling rapid detection of the synchronous broadcast block.

[0398] In some embodiments, the first parameter includes at least one of the following:

[0399] Parameter i in the demodulation reference signal sequence of the physical broadcast channel SSB ;

[0400] Physical broadcast channel Bit field;

[0401] Physical broadcast channel Bit field;

[0402] Physical broadcast channel Bit field;

[0403] The spare bit field of the physical broadcast channel;

[0404] The half-frame bit field of the physical broadcast channel;

[0405] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0406] The Synchronization Broadcast Block Index (SSB index) bit field of the Physical Broadcast Channel.

[0407] In some embodiments, when the first parameter includes at least two types of parameters, the maximum value of the synchronous broadcast block index indicated by the first parameter is determined based on the sum of the bit lengths corresponding to the at least two types of parameters.

[0408] In some embodiments, the synchronous broadcast block corresponding to the synchronous broadcast block index is a first type of synchronous broadcast block or a second type of synchronous broadcast block.

[0409] In some embodiments, the device further includes:

[0410] The second parameter sending module is used to send a second parameter, which is used to indicate the working mode of the first communication node.

[0411] In some embodiments, the second parameter includes at least one of the following:

[0412] The free bit field of the physical broadcast channel;

[0413] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0414] k of the physical broadcast channel SSB Bit field;

[0415] The cellBarred bit field of the physical broadcast channel.

[0416] In some embodiments, the time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following:

[0417] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame;

[0418] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames;

[0419] The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames.

[0420] Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

[0421] In some embodiments, the first type of synchronous broadcast block and the second type of synchronous broadcast block satisfy at least one of the following:

[0422] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers;

[0423] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

[0424] The communication device proposed in this embodiment belongs to the same inventive concept as the communication method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as the communication method.

[0425] Figure 11 This is a schematic diagram of another communication device provided in one embodiment, which is applied to a third communication node, such as... Figure 11 As shown, the device includes: a duplicate information determination module 610.

[0426] The repetition information determination module 610 is used to determine the repetition information of the synchronization broadcast block based on the third parameter.

[0427] The communication device provided in this application embodiment allows the third communication node to determine the repetition information of the SSB based on the third parameter, thus solving the problem in the prior art that it is impossible to indicate the synchronous broadcast block. By determining the repetition information of the SSB through the third parameter, the SSB can be reused. The third communication node only needs to determine the repetition information of the SSB based on the third parameter to realize the reuse of the synchronous broadcast block.

[0428] In some embodiments, the third parameter includes at least one of the following:

[0429] Frequency range;

[0430] frequency band;

[0431] carrier wave;

[0432] Partial bandwidth;

[0433] Subcarrier spacing;

[0434] residential community;

[0435] Master synchronization signal sequence;

[0436] Auxiliary synchronization signal sequence;

[0437] Physical broadcast channel demodulation reference signal sequence;

[0438] The number of symbols between the primary synchronization signal and the secondary synchronization signal;

[0439] The number of symbols between the master synchronization signal and the physical broadcast channel;

[0440] The number of symbols between the auxiliary synchronization signal and the physical broadcast channel.

[0441] In some embodiments, the repeating information includes at least one of the following:

[0442] Is it a duplicate?

[0443] Number of repetitions.

[0444] In some embodiments, the synchronous broadcast block is a first type of synchronous broadcast block or a second type of synchronous broadcast block.

[0445] In some embodiments, when the third communication node is a base station, the device further includes:

[0446] The fourth parameter sending module is used to send a fourth parameter, which is used to indicate the working mode of the fourth communication node.

[0447] In some embodiments, when the third communication node is a user equipment, the apparatus further includes:

[0448] The fourth parameter receiving module is used to receive a fourth parameter, which is used to indicate the working mode of the third communication node.

[0449] In some embodiments, the fourth parameter includes at least one of the following:

[0450] The free bit field of the physical broadcast channel;

[0451] Cyclic Redundancy Check (CRC) mask for physical broadcast channels;

[0452] k of the physical broadcast channel SSB Bit field;

[0453] The cellBarred bit field of the physical broadcast channel. If, based on the third parameter, the synchronization broadcast block is determined to be a type II synchronization broadcast block and the third communication node is a type II communication node, then based on the third parameter, it is determined whether the third communication node should access the cell.

[0454] In some embodiments, the device further includes:

[0455] The second operating mode determination module is used to determine the operating mode of the third communication node based on the fourth parameter.

[0456] In some embodiments, when the third communication node is a first-type communication node, determining the operating mode of the third communication node based on the fourth parameter includes at least one of the following:

[0457] When the fourth parameter includes the cyclic redundancy check mask for the physical broadcast channel, the third communication node cannot detect the synchronization broadcast block;

[0458] The fourth parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field is set to a specific value, the third communication node ignores the synchronization broadcast block;

[0459] If the fourth parameter includes the cellBarred bit field of the physical broadcast channel and the cellBarred bit field of the physical broadcast channel indicates prohibition, the third communication node is prohibited from accessing the cell.

[0460] In some embodiments, when the third communication node is a second type of communication node, determining the operating mode of the third communication node based on the fourth parameter includes at least one of the following:

[0461] The fourth parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates that access is prohibited, the third communication node is prohibited from accessing the cell;

[0462] The fourth parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates access, the third communication node accesses the cell;

[0463] If the fourth parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates that access is prohibited, the third communication node is prohibited from accessing the cell.

[0464] When the fourth parameter includes the spare bit field of the physical broadcast channel and the spare bit field of the physical broadcast channel indicates access, the third communication node accesses the cell.

[0465] In some embodiments, when the third communication node is a second type of communication node, the apparatus further includes at least one of the following:

[0466] The third offset determination module is used for k via the physical broadcast channel of the first type of synchronization broadcast block. SSB The bit field is used to obtain the synchronous broadcast block subcarrier offset or the global synchronization channel number offset.

[0467] The fourth offset determination module is used for k-axis determination of the physical broadcast channel of the second type of synchronization broadcast block. SSB The bit field retrieves the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number.

[0468] In some embodiments, the time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following:

[0469] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame;

[0470] The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames;

[0471] The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames.

[0472] Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

[0473] In some embodiments, the first type of synchronous broadcast block and the second type of synchronous broadcast block satisfy at least one of the following:

[0474] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers;

[0475] The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

[0476] In some embodiments, when the third communication node is a second type of communication node, the apparatus further includes at least one of the following:

[0477] The third detection module is used to detect the synchronization broadcast block located in the synchronization grating corresponding to the first global synchronization channel number set;

[0478] The fourth detection module is used to detect the synchronization broadcast block located in the synchronization grating corresponding to the second global synchronization channel number set.

[0479] The communication device proposed in this embodiment belongs to the same inventive concept as the communication method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as the communication method.

[0480] This application also provides a communication node. Figure 12 A schematic diagram of the structure of a communication node is provided as an embodiment, such as... Figure 12 As shown, the communication node provided in this application includes a processor 710, a memory 720, and a computer program stored in the memory and executable on the processor. When the processor 710 executes the program, it implements the above-described communication method.

[0481] The communication node may also include a memory 720; the processor 710 in the communication node may be one or more. Figure 12 Taking a processor 710 as an example; memory 720 is used to store one or more programs; the one or more programs are executed by the one or more processors 710, causing the one or more processors 710 to implement the communication method as described in the embodiments of this application.

[0482] The communication node also includes: a communication module 730, an input device 740, and an output device 750.

[0483] The processor 710, memory 720, communication module 730, input device 740, and output device 750 in the communication node can be connected via a bus or other means. Figure 12 Taking the example of a connection between China and Israel via a bus.

[0484] Input device 740 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the communication node. Output device 750 may include display devices such as a display screen.

[0485] The communication module 730 may include a receiver and a transmitter. The communication module 730 is configured to perform information transmission and reception communication under the control of the processor 710.

[0486] The memory 720, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the communication method described in the embodiments of this application (e.g., the first parameter receiving module 410 in the communication device, or the first parameter sending module 510 in the communication device, or the duplicate information determination module 610 in the communication device). The memory 720 may include a program storage area and a data storage area, wherein the program storage area may store the operating system and at least one application program required for a function; the data storage area may store data created according to the use of the communication node, etc. In addition, the memory 720 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 720 may further include memory remotely located relative to the processor 710, and these remote memories can be connected to the communication node via a network. Examples of the above-mentioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0487] This application also provides a storage medium storing a computer program, which, when executed by a processor, implements any of the communication methods described in this application.

[0488] Optionally, the communication method, applied to a first communication node, includes: receiving a first parameter, the first parameter being used to indicate a synchronous broadcast block index.

[0489] Optionally, the communication method, applied to the second communication node, includes: sending a first parameter, the first parameter being used to indicate a synchronous broadcast block index.

[0490] Optionally, the communication method, applied to a third communication node, includes: determining the repetition information of the synchronization broadcast block based on a third parameter.

[0491] The computer storage medium in this application embodiment can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. For example, a computer-readable storage medium can be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination thereof. The computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0492] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit programs for use by or in connection with an instruction execution system, apparatus, or device.

[0493] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, radio frequency (RF), etc., or any suitable combination thereof.

[0494] This application provides a computer program product, which includes a computer program that, when executed by a processor, implements the communication method described in any one of the embodiments of this application.

[0495] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0496] The above description is merely an exemplary embodiment of this application and is not intended to limit the scope of protection of this application.

[0497] Those skilled in the art will understand that the term user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.

[0498] Generally, the various embodiments of this application can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although this application is not limited thereto.

[0499] Embodiments of this application can be implemented by executing computer program instructions through the data processor of a mobile device, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.

[0500] Any block diagram of logical flow in the accompanying drawings of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored in memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical storage devices and systems (Digital Video Disc (DVD) or Compact Disk (CD), etc.). Computer-readable media may include non-transitory storage media. The data processor may be of any type suitable to the local technical environment, such as, but not limited to, general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and processors based on multi-core processor architectures.

[0501] A detailed description of exemplary embodiments of this application has been provided above through exemplary and non-limiting examples. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, without departing from the scope of this application. Therefore, the proper scope of this application will be determined by the claims.

Claims

1. A communication method, characterized in that, Applied to the first communication node, including: Receive a first parameter, which indicates the synchronous broadcast block index.

2. The communication method according to claim 1, characterized in that, The first parameter includes at least one of the following: Parameter i in the demodulation reference signal sequence of the physical broadcast channel SSB ; Physical broadcast channel Bit field; Physical broadcast channel Bit field; Physical broadcast channel Bit field; The idle bit field of the physical broadcast channel; Half-frame bit field of physical broadcast channel; Cyclic Redundancy Check (CRC) mask for physical broadcast channels; Synchronization broadcast block index bit field of physical broadcast channel.

3. The communication method according to any one of claims 1-2, characterized in that, When the first parameter includes at least two types of parameters, the maximum value of the synchronous broadcast block index indicated by the first parameter is determined based on the sum of the bit lengths corresponding to the at least two types of parameters.

4. The communication method according to claim 1, characterized in that, The synchronous broadcast block corresponding to the synchronous broadcast block index is either a first-type synchronous broadcast block or a second-type synchronous broadcast block.

5. The communication method according to claim 1, characterized in that, Also includes: Receive a second parameter, which indicates the operating mode of the first communication node.

6. The communication method according to claim 5, characterized in that, The second parameter includes at least one of the following: The idle bit field of the physical broadcast channel; Cyclic Redundancy Check (CRC) mask for physical broadcast channels; k of the physical broadcast channel SSB Bit field; The cellBarred bit field of the physical broadcast channel.

7. The communication method according to claim 5, characterized in that, Also includes: The operating mode of the first communication node is determined based on the second parameter.

8. The communication method according to claim 7, characterized in that, When the first communication node is a first type of communication node, determining the operating mode of the first communication node based on the second parameter includes at least one of the following: When the second parameter includes the cyclic redundancy check mask of the physical broadcast channel, the first communication node cannot detect the synchronization broadcast block; The second parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field is set to a specific value, the first communication node ignores the synchronization broadcast block; If the second parameter includes the cellBarred bit field of the physical broadcast channel and the cellBarred bit field of the physical broadcast channel indicates prohibition, the first communication node is prohibited from accessing the cell.

9. The communication method according to claim 7, characterized in that, When the first communication node is a type II communication node, determining the operating mode of the first communication node based on the second parameter includes at least one of the following: The second parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates that access is prohibited, the first communication node is prohibited from accessing the cell; The second parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates access, the first communication node accesses the cell; If the second parameter includes an idle bit field of the physical broadcast channel and the idle bit field of the physical broadcast channel indicates that access is prohibited, the first communication node is prohibited from accessing the cell. When the second parameter includes an idle bit field of the physical broadcast channel and the idle bit field of the physical broadcast channel indicates access, the first communication node accesses the cell.

10. The communication method according to claim 4, characterized in that, If the first communication node is a type II communication node, it also includes at least one of the following: k via the physical broadcast channel of the first type of synchronous broadcast block SSB The bit field is used to obtain the synchronous broadcast block subcarrier offset or the global synchronization channel number offset. k via the physical broadcast channel of the second type of synchronous broadcast block SSB The bit field retrieves the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number.

11. The communication method according to claim 4, characterized in that, The time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following: The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame; The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames; The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames. Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

12. The communication method according to claim 4, characterized in that, Type I synchronous broadcast blocks and Type II synchronous broadcast blocks satisfy at least one of the following: The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers; The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

13. The communication method according to claim 12, characterized in that, If the first communication node is a type II communication node, it also includes at least one of the following: Detect the synchronization broadcast block located in the synchronization grating corresponding to the first global synchronization channel number set; Detect the synchronization broadcast block located in the synchronization grating corresponding to the second global synchronization channel number set.

14. A communication method, characterized in that, Applied to the second communication node, including: Send the first parameter, which is used to indicate the synchronous broadcast block index.

15. The communication method according to claim 14, characterized in that, Also includes: Send a second parameter, which is used to indicate the operating mode of the first communication node.

16. A communication method, characterized in that, Applied to third communication nodes, including: The repetition information of the synchronous broadcast block is determined based on the third parameter.

17. The communication method according to claim 16, characterized in that, The third parameter includes at least one of the following: Frequency range; frequency band; carrier wave; Partial bandwidth; Subcarrier spacing; residential community; Master synchronization signal sequence; Auxiliary synchronization signal sequence; Physical broadcast channel demodulation reference signal sequence; The number of symbols between the primary synchronization signal and the secondary synchronization signal; The number of symbols between the master synchronization signal and the physical broadcast channel; The number of symbols between the auxiliary synchronization signal and the physical broadcast channel.

18. The communication method according to any one of claims 16-17, characterized in that, The repeated information includes at least one of the following: Is it a duplicate? Number of repetitions.

19. The communication method according to claim 16, characterized in that, The synchronous broadcast block is either a first-type synchronous broadcast block or a second-type synchronous broadcast block.

20. The communication method according to claim 16, characterized in that, In the case where the third communication node is a base station, the following is also included: Send a fourth parameter, which indicates the operating mode of the fourth communication node.

21. The communication method according to claim 16, characterized in that, In the case where the third communication node is a user equipment, the following is also included: Receive a fourth parameter, which is used to indicate the operating mode of the third communication node.

22. The communication method according to any one of claims 20-21, characterized in that, The fourth parameter includes at least one of the following: The idle bit field of the physical broadcast channel; Cyclic Redundancy Check (CRC) mask for physical broadcast channels; k of the physical broadcast channel SSB Bit field; The cellBarred bit field of the physical broadcast channel.

23. The communication method according to claim 21, characterized in that, Also includes: The operating mode of the third communication node is determined based on the fourth parameter.

24. The communication method according to claim 23, characterized in that, When the third communication node is a first-type communication node, determining the operating mode of the third communication node based on the fourth parameter includes at least one of the following: When the fourth parameter includes the cyclic redundancy check mask for the physical broadcast channel, the third communication node cannot detect the synchronization broadcast block; The fourth parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field is set to a specific value, the third communication node ignores the synchronization broadcast block; If the fourth parameter includes the cellBarred bit field of the physical broadcast channel and the cellBarred bit field of the physical broadcast channel indicates prohibition, the third communication node is prohibited from accessing the cell.

25. The communication method according to claim 23, characterized in that, When the third communication node is a type 2 communication node, determining the operating mode of the third communication node based on the fourth parameter includes at least one of the following: The fourth parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates that access is prohibited, the third communication node is prohibited from accessing the cell; The fourth parameter includes k of the physical broadcast channel. SSB Bit field and k of the physical broadcast channel SSB When the bit field indicates access, the third communication node accesses the cell; If the fourth parameter includes an idle bit field of the physical broadcast channel and the idle bit field of the physical broadcast channel indicates that access is prohibited, the third communication node is prohibited from accessing the cell. When the fourth parameter includes an idle bit field of the physical broadcast channel and the idle bit field of the physical broadcast channel indicates access, the third communication node accesses the cell.

26. The communication method according to claim 19, characterized in that, If the third communication node is a type II communication node, it also includes at least one of the following: k via the physical broadcast channel of the first type of synchronous broadcast block SSB The bit field is used to obtain the synchronous broadcast block subcarrier offset or the global synchronization channel number offset. k via the physical broadcast channel of the second type of synchronous broadcast block SSB The bit field retrieves the subcarrier offset of the synchronization broadcast block or the offset of the global synchronization channel number.

27. The communication method according to claim 19, characterized in that, The time-domain location of the first type of synchronous broadcast block and the second type of synchronous broadcast block includes at least one of the following: The first type of synchronous broadcast block and the second type of synchronous broadcast block are in the same half frame; The first type of synchronous broadcast block and the second type of synchronous broadcast block are in different half-frames; The first part of the first type of synchronous broadcast block and the second part of the first type of synchronous broadcast block are in the same half frame, while the second part of the first type of synchronous broadcast block and the second part of the synchronous broadcast block are in different half frames. Type I synchronous broadcast blocks and Type II synchronous broadcast blocks are in different radio frames.

28. The communication method according to claim 19, characterized in that, Type I synchronous broadcast blocks and Type II synchronous broadcast blocks satisfy at least one of the following: The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to the same set of global synchronization channel numbers; The first type of synchronous broadcast block and the second type of synchronous broadcast block correspond to different sets of global synchronization channel numbers.

29. The communication method according to claim 24, characterized in that, If the third communication node is a type II communication node, it also includes at least one of the following: Detect the synchronization broadcast block located in the synchronization grating corresponding to the first global synchronization channel number set; Detect the synchronization broadcast block located in the synchronization grating corresponding to the second global synchronization channel number set.

30. A communication node, characterized in that, include: The program includes a memory, a processor, a program stored in the memory and executable on the processor, and a data bus for implementing communication between the processor and the memory, wherein the program, when executed by the processor, implements the steps of the communication method as described in any one of claims 1-29.

31. A storage medium for computer-readable storage, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the steps of the communication method according to any one of claims 1-29.

32. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the communication method according to any one of claims 1-29.

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