Sequence transmission method, communication device, and storage medium

Abstract

The application provides a sequence transmission method, a communication device and a storage medium. The sequence transmission method applied to a sending end comprises the following steps: encoding a first bit sequence to obtain an encoded bit sequence; performing rate matching on the encoded bit sequence to obtain a second bit sequence; and sending the second bit sequence to a receiving end through a physical broadcast channel.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to a sequence transmission method, communication device, and storage medium. Background Technology

[0002] In existing 5G New Radio Access (NR) communication systems, the Physical Broadcast Channel (PBCH) carries information such as Sub-Carrier Spacing (SCS) and half-frame indication, and the number of PBCH bits is fixed. 6G will introduce new technologies, such as less System Information Block (SIB), less Synchronization Signal Block (SSB), and AI-related and sensing-related technologies. The PBCH will need to carry some new information, requiring a new encoding process. Summary of the Invention

[0003] In view of this, embodiments of this application provide a sequence transmission method, communication device, and storage medium, which effectively solves the technical problem in the prior art that the interleaving and rate matching of PBCH bits based on fixed bits makes it unsuitable for 6G communication scenarios.

[0004] This application provides a sequence transmission method applied at a transmitting end, the method comprising:

[0005] Encode the first bit sequence to obtain the encoded bit sequence;

[0006] Rate matching is performed on the encoded bit sequence to obtain a second bit sequence;

[0007] The second bit sequence is sent to the receiving end via a physical broadcast channel.

[0008] This application provides a sequence transmission method applied at a receiving end, the method comprising:

[0009] Receive the second bit sequence transmitted via the physical broadcast channel;

[0010] Rate dematching is performed on the second bit sequence to obtain the encoded bit sequence;

[0011] The encoded bit sequence is decoded to obtain the first bit sequence.

[0012] This application provides a sequence transmission device applied at a transmitting end, the device comprising:

[0013] The encoding module is configured to encode the first bit sequence to obtain the encoded bit sequence;

[0014] The matching module is configured to perform rate matching on the encoded bit sequence to obtain a second bit sequence;

[0015] The transmitting module is configured to transmit the second bit sequence to the receiving end via a physical broadcast channel.

[0016] This application provides a sequence transmission device applied at a receiving end, the device comprising:

[0017] The receiving module is configured to receive a second bit sequence transmitted through a physical broadcast channel;

[0018] The dematching module is configured to perform rate dematching on the second bit sequence to obtain the encoded bit sequence;

[0019] The decoding module is configured to decode the encoded bit sequence to obtain a first bit sequence.

[0020] This application provides a communication device, including: a memory, and one or more processors;

[0021] The memory is configured to store one or more programs;

[0022] When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in any of the above embodiments.

[0023] This application provides a storage medium storing a computer program, which, when executed by a processor, implements the methods described in any of the above embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the time-frequency domain structure configuration of an SSB provided by existing technology;

[0025] Figure 2 This is a flowchart of PBCH encoding in a 5G scenario provided by existing technology;

[0026] Figure 3 This is a flowchart of a sequence transmission method provided in an embodiment of this application;

[0027] Figure 4 This is a flowchart of another sequence transmission method provided in the embodiments of this application;

[0028] Figure 5 This is a schematic diagram of a configuration in which one cycle includes four beam directions, provided by an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the configuration of a pattern and a cycle provided in an embodiment of this application;

[0030] Figure 7 This is a schematic diagram illustrating the configuration of a period and a first synchronization signal provided in an embodiment of this application;

[0031] Figure 8 This is a structural block diagram of a sequence transmission device provided in an embodiment of this application;

[0032] Figure 9 This is a structural block diagram of another sequence transmission device provided in the embodiments of this application;

[0033] Figure 10 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0034] The embodiments of this application will be described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this application.

[0035] In 5G communication scenarios, Figure 1 This is a schematic diagram of the time-frequency domain structure configuration of an SSB provided by existing technology, such as... Figure 1 As shown, it includes the Primary Synchronization Signal (PSS), PBCH, and Secondary Synchronization Signal (SSS), which occupy a total of 4 Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain and 20 Resource Blocks (RBs) in the frequency domain.

[0036] Both PSS and SSS are sequences, containing 1008 physical cell identifiers. and instruct.

[0037]

[0038] Among them, PSS sequence d PSS (n) is generated as follows:

[0039] d PSS (n) = 1 - 2x(m)

[0040]

[0041] 0 ≤ n < 127

[0042] in

[0043] x(i+7)=(x(i+4)+x(i))mod2

[0044] and

[0045] [x(6)x(5)x(4)x(3)x(2)x(1)x(0)]=[1110110]

[0046] It can be seen that the generation of PSS sequences is related to... Related, i.e., carrying information.

[0047] Among them, the SSS sequence d SSS (n) is generated as follows:

[0048] d SSS (n)=[1-2x0((n+m0)mod127)][1-2x1((n+m1)mod127)]

[0049]

[0050] 0 ≤ n < 127

[0051] in

[0052] x0(i+7)=(x0(i+4)+x0(i))mod2

[0053] x1(i+7)=(x1(i+1)+x1(i))mod2

[0054] and

[0055] [x0(6)x0(5)x0(4)x0(3)x0(2)x0(1)x0(0)]=[0000001]

[0056] [x1(6)x1(5)x1(4)x1(3)x1(2)x1(1)x1(0)]=[0000001]

[0057] It can be seen that the generation of PSS sequences is related to... Related to, i.e., carrying information.

[0058] Figure 2 This is a flowchart of PBCH encoding in a 5G scenario provided by existing technology, such as... Figure 2 As shown, the bits carried in the PBCH include higher-level bits and layer 1 bits; among them, the higher-level bits are... Layer 1 bit is The bits that together make up the PBCH These bits need to be interleaved using a predefined interleaving method. The interleaved bits will be a0, a1, a2, a3, ..., a A-1 .

[0059] These bits were then scrambled, and the output bits were a'0, a'1, a'2, a'3, ..., a' A-1 ;

[0060] Then add a Cyclic Redundancy Check (CRC), with output bits b0, b1, b2, b3, ..., b B-1 Where B = A + L, and L is the length of the CRC;

[0061] Next, channel coding is performed, and the encoded bits are d0, d1, d2, d3, ..., d N-1 ;

[0062] Next, rate matching is performed to ensure that the output bits meet resource requirements. In 5G scenarios, PBCH performs rate matching repeatedly, with output bits being f0, f1, f2, f3, ..., f E-1 , where E = 864.

[0063] In 5G, the number of bits in the PBCH is fixed, and its interleaving and rate matching designs are based on this fixed number of bits. If the number of bits changes, the interleaving and rate matching methods cannot be used. In 6G scenarios, the information carried in the PBCH will change. What information is carried and how it is transmitted are the problems that this application needs to solve.

[0064] In one embodiment, Figure 3 This is a flowchart illustrating a sequence transmission method provided in an embodiment of this application. This embodiment applies to the case of bit encoding in a wireless communication scenario. This embodiment can be executed by a transmitting end. In one example, the transmitting end can be a base station or a terminal (e.g., a UE). Figure 3 As shown, this embodiment includes: S310-S330.

[0065] S310. Encode the first bit sequence to obtain the encoded bit sequence.

[0066] In one example, the sending end can encode the first bit sequence using polar codes to obtain the encoded bit sequence.

[0067] In one example, the first bit sequence is the bit information carried in the physical broadcast channel.

[0068] In one example, the first bit sequence may contain K bits, meaning the sequence length of the first bit sequence is K; where K is a positive integer.

[0069] S320. Rate matching is performed on the encoded bit sequence to obtain the second bit sequence.

[0070] In one example, the sender can perform rate matching on the encoded bit sequence to obtain a second bit sequence.

[0071] In one example, the transmitter can sequentially perform rate matching and scrambling on the encoded bit sequence to obtain a second bit sequence. This can be understood as the second bit sequence being the rate-matched bit sequence obtained by rate matching the encoded bit sequence, followed by scrambling the rate-matched bit sequence.

[0072] In one example, rate matching is performed on the encoded bit sequence to obtain a second bit sequence. This can be understood as selecting bits from the encoded bit sequence to obtain the second bit sequence.

[0073] In one example, the second bit sequence may contain E bits, meaning the sequence length of the second bit sequence is E; where E is a positive integer.

[0074] In one example, the second bit sequence can be considered as the bit sequence to be transmitted, which may undergo other operations, such as scrambling and modulation, before being sent through a physical broadcast channel.

[0075] S330. The second bit sequence is sent to the receiving end through the physical broadcast channel.

[0076] In one example, the bit information carried in the PBCH can also be carried through scrambling. For instance, the PBCH carries fourth information and second information. The fourth information forms the first bit sequence, and the second information determines the scrambling sequence, which is then used for scrambling.

[0077] In one example, the sender can directly transmit the second bit sequence to the receiver via a physical broadcast channel.

[0078] In one example, the sending end can perform operations such as modulation on the second bit sequence and then send the second bit sequence after these operations to the receiving end.

[0079] In this embodiment, the transmitting end encodes the first bit sequence to obtain an encoded bit sequence, and performs rate matching on the encoded bit sequence to obtain a second bit sequence. Then, the second bit sequence is sent to the receiving end through the physical broadcast channel. This solves the technical problem in the prior art where the interleaving and rate matching of PBCH bits based on fixed bits makes it unsuitable for 6G communication scenarios. By distinguishing the signaling types carried in the first bit sequence and using different methods to carry them, a more reliable encoding effect is achieved.

[0080] In this embodiment, encoding the first bit sequence includes: selecting a mother code length based on the length of the first bit sequence and / or the length of the sequence after rate matching and / or the code rate; determining a data candidate index set based on the mother code length and channel reliability; mapping the first bit sequence and parity bits to the data candidate index set, and mapping other index positions to frozen bits or predefined sequences, and then encoding. Each index corresponds to a channel reliability. In polar code encoding, placing data in high-reliability index positions can improve encoding performance.

[0081] In one embodiment, the first bit sequence includes at least one of the following: a first time-domain indicator for indicating the System Frame Number (SFN); a time-frequency domain information indicator; a first type of terminal access support status; a subcarrier spacing; demodulation reference signal (DMRS) configuration parameters; an access support status indicator; a same-frequency reselection indicator; synchronization signal index information / channel index information; a transmission reception point (TRP) index; a second time-domain indicator; a wake-up signal indicator; a system information block (SIB1) related indicator; an update indicator; and multiple-input multiple-output (MIMO) related configuration parameters.

[0082] In one example, the first time domain indicator is used to indicate the SFN; the SFN is used to identify the sequence number of the radio frame to ensure time synchronization of all nodes in the network. For example, a radio frame can be 10ms long and consists of 10 subframes, with the SFN ranging from 0 to 1023. Alternatively, the duration of the SFN can also be 10ms. In one example, the first time domain indicator may occupy 5-10 bits. In another example, the first time domain indicator may occupy 5-12 bits.

[0083] In one example, the time-frequency domain information indicates at least one of the following: control resource set (CORESET), search space information, and initial bandwidth part (BWP).

[0084] In one example, the support status for the first type of terminal access is used to characterize whether the first type of terminal access is supported.

[0085] In one example, CORESET type indication information or search space type indication information can be used to characterize whether Type I terminal access is supported.

[0086] In one example, DMRS configuration parameters are used to determine a series of parameters, such as the relevant characteristics and mapping method of DMRS. Generally, the DMRS configuration parameters are different for different physical channels. For example, assuming the physical channel is PBCH, its DMRS configuration parameters may include, but are not limited to, at least one of the following: time-domain location parameters, frequency-domain location parameters, DMRS sequence initialization parameters, and half-frame index.

[0087] In one example, the DMRS configuration parameters are used to determine the location of the first DMRS symbol in the PDSCH, which is used by the UE to demodulate early downlink data (typically the PDSCH of SIB1) before obtaining the complete RRC configuration, and to determine the OFDM symbol index of the first DMRS.

[0088] In one example, the access support status indicator is used to indicate whether access is supported.

[0089] In one example, the synchronization signal index information / channel index information may include, but is not limited to, at least one of the following: SSB index; PSS index; SSS index; PBCH index.

[0090] In one embodiment, the sequence transmission method applied to the sending end further includes:

[0091] Generate a scrambling sequence based on the first information; scramble the first bit sequence based on the scrambling sequence; and / or, generate a scrambling sequence based on the second information; scramble the second bit sequence based on the scrambling sequence.

[0092] The first information and / or the second information each include at least one of the following: a first time domain indication; a portion of the bits in the first time domain indication; a second time domain indication; a portion of the bits in the second time domain indication; an SSB index; synchronization signal index information / channel index information; a portion of the bits in the synchronization signal index information / channel index information; an update indication; and a transmission receiver point (TRP) index.

[0093] For example, the first information is a portion of the bits in the second time-domain indication. A scrambling sequence is generated based on the first information, and the first bit sequence is scrambled based on the scrambling sequence. The second information is synchronization signal index information / channel index information. A scrambling sequence is generated based on the second information, and the second bit sequence is scrambled based on the scrambling sequence.

[0094] For example, the first information is a portion of the bits in the first time domain indication. A scrambling sequence is generated based on the first information, and the first bit sequence is scrambled based on the scrambling sequence. The second information is synchronization signal index information / channel index information. A scrambling sequence is generated based on the second information, and the second bit sequence is scrambled based on the scrambling sequence.

[0095] For example, the first information is a portion of the bits in the first time domain indication, a scrambling sequence is generated based on the first information, and the first bit sequence and the second bit sequence are scrambled based on the scrambling sequence.

[0096] In one embodiment, the time-frequency domain information indication includes at least one of the following: a first time-frequency domain information indication; a second time-frequency domain information indication;

[0097] Among them, the first time-frequency domain information indication is used to indicate the time-frequency domain information indication of the second type of terminal;

[0098] The second time-frequency domain information indicator is used to indicate the time-frequency domain information of the first type of terminal.

[0099] In one embodiment, the first time-frequency domain information indication includes first time-domain information and first frequency-domain information;

[0100] The second time-frequency domain information indication includes second frequency domain information;

[0101] Among them, the bandwidth / occupied RB / occupied RE indicated by the first frequency domain information is greater than the bandwidth / occupied RB / occupied RE indicated by the second frequency domain information, and the time domain information of the first type of terminal is the same as that of the second type of terminal.

[0102] In one embodiment, the first time-frequency domain information indication includes time-domain resource information and frequency-domain resource information;

[0103] The second time-frequency domain information indicates whether the second frequency domain resource information is enabled. If the indication is enabled, the second frequency domain resource information is determined according to the frequency domain resource information indicated by the first time-frequency domain information and the predefined rules.

[0104] In one embodiment, the first type of terminal includes one of the following:

[0105] A terminal with a bandwidth of the first preset bandwidth;

[0106] Low Power Wide Area (LPWA) type terminals.

[0107] In one example, the first preset bandwidth can be 3MHz or 5MHz. In another example, the first preset bandwidth can be characterized by the number of resource blocks (RBs), for example, the value of the number of RBs can be, but is not limited to, at least one of the following: 8, 12, 14, 16, 20, 24, 28 and 32.

[0108] In one example, the first preset bandwidth may include at least one of the following: (3+d)MHz, (3-d)MHz, (5+d)MHz, or (5-d)MHz;

[0109] Where d is a value less than or equal to 0.1. In one example, (3+d)MHz, (3-d)MHz, (5+d)MHz, or (5-d)MHz contains an integer number of RBs or an integer number of Resource Elements (REs).

[0110] In one example, an LPWA-type terminal may include, but is not limited to, one of the following: a RedCAP terminal, etc.

[0111] In one example, the characteristics of an LPWA type terminal include at least one of the following:

[0112] Maximum bandwidth is less than or equal to 5MHz / 3MHz;

[0113] The number of receiving antennas is less than a first threshold, which is 4, 3, or 2.

[0114] The number of transmitting antennas is less than a first threshold, which is 4, 3, or 2;

[0115] The maximum number of MIMO layers is less than a first threshold, which is 4, 3, or 2.

[0116] The maximum number of ports is less than the second threshold, which is 8, 12, 4, or 2.

[0117] The maximum rank is less than the first threshold.

[0118] The maximum number of blindly detected PDCCH candidates in a resource unit is less than a third threshold, which is a positive integer less than or equal to 20, such as 12, 8, etc.

[0119] The largest number of non-overlapped CCEs in a resource unit is less than the fourth threshold, which is a positive integer less than or equal to 20, such as 12, 8, etc.

[0120] The maximum modulation level is less than the fifth threshold, which is 32, 16, 8, 4, or 2.

[0121] The maximum DCI size is less than the sixth threshold, which is a positive integer less than or equal to 100;

[0122] The maximum number of search space sets that can be configured in a BWP or a serving cell is less than the seventh threshold, which is 6, 5, 4, 3, or 2.

[0123] The number of configurable CORESETs in a BWP or a serving cell is less than the eighth threshold, which is 5, 4, 3, or 2.

[0124] The maximum data rate is less than the ninth threshold;

[0125] The maximum number of bits that can be transmitted in a transport block is less than the tenth threshold, which is a positive integer less than or equal to 3448, such as 512.

[0126] The maximum number of HARQ processes is less than the eleventh threshold, which is a positive integer less than or equal to 10.

[0127] The maximum bitrate is less than the twelfth threshold, which is a positive number less than or equal to 7 / 8.

[0128] In one embodiment, in response to the first bit sequence including at least one of the following, the first bit sequence includes at least a subcarrier spacing: a carrier aggregation indication in an idle or inactive state; more than one carrier indication information; secondary cell / secondary cell / secondary carrier indication information.

[0129] In one example, the second cell may be an energy-saving cell. In one example, an energy-saving cell may include, but is not limited to, at least one of the following: not transmitting SSB; not transmitting SIB1; not transmitting both SSB and SIB1; transmitting long-cycle SSB; transmitting long-cycle SIB1.

[0130] In one example, the second cell is a cell other than the current serving cell. In one example, the second cell is the second TRP. In one example, the second cell is a capacity-enhancing cell.

[0131] In one example, the second cell indication information indicates the identifier (ID) / index associated with the second cell.

[0132] In one example, the cell indication information indicates the identifier (ID) / index associated with the cell.

[0133] In one example, the carrier indication information indicates the carrier identifier (ID) / index.

[0134] In one embodiment, the bearer signal of the TRP index further includes one of the following: PSS; SSS.

[0135] In one example, the TRP index can be used in an m-TRP scenario, or carried directly by the PSS or SSS; where m is an integer greater than or equal to 1.

[0136] In one example, the TRP index is in the first bit sequence. This indicates the TRP / cell to be sent carrying that TRP index in the PBCH.

[0137] In one example, the TRP index is used to indicate the TRP corresponding to the currently transmitted signal / channel, that is, which TRP sent the currently transmitted signal / channel.

[0138] In one example, with only one TRP, the TRP index can be 0.

[0139] In one example, the PSS or SSS can be used to indicate whether the m-TRP scenario is enabled. If the PSS or SSS indicates that the m-TRP scenario is enabled, the TRP index can be carried in the PBCH, that is, the TRP index can be carried in the first bit sequence. If the PSS or SSS indicates that the m-TRP scenario is not enabled, the TRP index can be not carried in the PBCH, that is, the TRP index can be not carried in the first bit sequence.

[0140] In one example, the TRP index can be carried only in the PSS or SSS.

[0141] In one embodiment, the second time-domain indicator is used to indicate the number of transmission intervals at one of the following granularities: 1ms; 2ms; 2.5ms; 3ms.

[0142] In one example, where the physical broadcast channel is associated with a compact synchronization signal, a compact physical broadcast channel, or a compact SSB, the second time-domain indication is used to indicate the number of transmission intervals at one of the following granularities: 1 ms; 2 ms; 2.5 ms; 3 ms. The transmission intervals for the compact (Type 1) SSB / PBCH / synchronization signal are 1 ms; 2 ms; 2.5 ms or 3 ms.

[0143] When the physical broadcast channel is associated with a Type II synchronization signal, a physical broadcast channel, or an SSB, the second time-domain indication is used to indicate a 5ms transmission interval. The transmission interval for a Type II SSB is 5ms.

[0144] In one example, the second temporal indication is used to indicate an index. This index indicates which PBCH within a frame / half-frame the PBCH belongs to. For example, index 0 indicates that the PBCH is the first PBCH within a frame. When the interval between PBCHs is fixed, this indicates the specific location of the PBCH.

[0145] In one embodiment, the relevant indication of SIB1 is used to indicate at least one of the following: SIB1 does not exist and initial access cannot be performed; SIB1 does not exist and initial access is permitted; SIB1 exists.

[0146] In one example, the SIB1 related indication is used to indicate that SIB1 does not exist and initial access cannot be performed. This can be understood as the cell that sent the PBCH does not have SIB1 sent, and the terminal cannot perform initial access in that cell.

[0147] In one example, the relevant indication of SIB1 is used to indicate that SIB1 does not exist and initial access is allowed. This can be understood as the cell that sent the PBCH does not send SIB1, but initial access is allowed. For example, if the terminal needs to send a wake-up signal, the cell will send SIB1, and the terminal can perform initial access based on the sent SIB1.

[0148] In one embodiment, the update indication is located in one of the following: the first X bits of a first bit sequence; the first X bits of a second bit sequence; the first X bits of a encoded bit sequence; or carried in a PSS or SSS.

[0149] In one embodiment, the relevant configuration parameters of MIMO include one of the following: number of antennas; precoding matrix.

[0150] In one example, in a MIMO scenario, the number of antennas refers to the number of antennas at the transmitting and receiving ends of the communication link. For instance, the number of antennas at the transmitting end can be the number of transmit antennas of the base station or the terminal; the number of antennas at the receiving end can be the number of receive antennas of the terminal or the base station. For example, when the transmitting end is a terminal and the receiving end is a base station, the number of antennas at the transmitting end is the number of antennas of the terminal, and the number of antennas at the receiving end is the number of antennas of the base station; when the transmitting end is a base station and the receiving end is a terminal, the number of antennas at the transmitting end is the number of antennas of the base station, and the number of antennas at the receiving end is the number of antennas of the terminal.

[0151] In one example, in a MIMO downlink scenario (base station as transmitter, terminal as receiver), the base station needs to support multi-user MIMO, the precoding matrix needs to match the channels of multiple terminals simultaneously, and it also needs to suppress interference between users. The base station can dynamically adjust the precoding matrix (e.g., codebook-based or non-codebook-based precoding) according to service requirements (e.g., rate and latency).

[0152] In one example, in the uplink of a MIMO scenario (where the base station acts as the receiver and the terminal acts as the transmitter), the terminal can determine the precoding matrix by means of the precoding matrix indication sent by the base station.

[0153] In one embodiment, a portion of the bits in the first bit sequence is carried by the higher layer / Master Information Block (MIB), and another portion of the bits is carried by the L1 layer (i.e., layer 1).

[0154] The information carried by the L1 layer includes at least one of the following: at least some bits in the first time domain indicator; the second time domain indicator; the update indicator; and the synchronization signal index information / channel index information.

[0155] In one example, the information carried by the L1 layer may include some or all of the bits in the first time-domain indication.

[0156] In one example, the MIB can be understood as information transmitted by higher layers (e.g., the Media Access Control Control Element (MAC CE) layer or the Radio Resource Control (RRC) layer).

[0157] In one embodiment, some bits in the first bit sequence are carried by the MIB, another part are carried by the L1 layer, and yet another part are carried in a predefined manner;

[0158] The information carried by the L1 layer or in a predefined manner includes at least one of the following: at least some bits of the first time-domain indicator; a second time-domain indicator; synchronization signal index information / channel index information; and an update indicator.

[0159] In one embodiment, at least a portion of the bits in the first time-domain indication include one of the following:

[0160] When the transmission period of SSB or PBCH is 20ms, the second least significant bit and / or the third least significant bit of SFN;

[0161] When the transmission period of SSB or PBCH is 40ms, the third least significant bit and / or the fourth least significant bit of SFN;

[0162] When the transmission period of SSB or PBCH is 80ms, the fourth least significant bit of SFN;

[0163] The fifth least significant bit of SFN when the transmission period of SSB or PBCH is 160ms.

[0164] In one embodiment, at least a portion of the bits in the first time-domain indication include one of the following:

[0165] The second least significant bit and / or the third least significant bit of the SFN;

[0166] The third least significant bit and / or the fourth least significant bit of the SFN;

[0167] The fourth least significant bit of SFN;

[0168] The fifth least significant bit of SFN.

[0169] In one embodiment, the first bit sequence includes: a first type of information bits;

[0170] The first type of information bits are mapped to the first index set; the first index set includes indices in the data candidate index set whose indices are less than M.

[0171] In one example, the first type of information bits may include at least one of the following: a first time domain indicator; a second time domain indicator; an index indicator; and an update indicator.

[0172] In one example, the first set of indices can be indices whose indices are less than the value of M, for example, M can be 128 or 512.

[0173] In one embodiment, the first index set includes at least one of the following:

[0174] 111,119,123,125,126,127;

[0175] 246,249,250,252,223,239,251,247,253,254,255;

[0176] 495,503,507,509,510,511.

[0177] In one embodiment, the first bit sequence includes: a second type of information bits;

[0178] Among them, the second type of information bits are mapped to the second index set;

[0179] The second set of indexes includes at least one of the following:

[0180] The set of indexes with the lowest reliability in the candidate index set;

[0181] The set of indexes with the lowest reliability in the candidate index set, excluding the first set of indexes.

[0182] In one example, the second type of information bits may include at least one of the following: a first time domain indicator; a second time domain indicator; an index indicator; and an update indicator.

[0183] In one embodiment, the first bit sequence includes: a second type of information bits;

[0184] Among them, the second type of information bits are mapped to the second index set;

[0185] The second set of indexes includes at least one of the following: 157 110 117 212 171 226 216 158 118 173 121 199 179 228 174 122 203 63 181 232 124 205 182 211 185 240 206 95 213 186 227 111 214 188 217 229 159 119 218 230 233 175 123 220 183 234 125 241 207 187; 427 414 223 472 455 377 435 319 484 430 488 239 378 459 437 380 461 496 351 467 438 251 462 442 441 469 247 367 253 375 444 470 483 415 485 473 474 254 379 431 489 486 476 439 490 463 381 497 492 443; 831 947 507 889 984 751 942 996 971 890 509 949 973 1000 892 950 863 759 1008 510 979 953 763 974 954 879 981 982 927 995 765 956 887 985 997 986 943 891 998 766 511

[0193] 988 1001 951 1002 893 975 894 1009 955.

[0194] In one embodiment, the first bit sequence includes: third type of information bits;

[0195] The third type of information bits are mapped to the third index set; the index position in the third index set is the position with the lowest reliability in the data candidate index set.

[0196] In one example, the third type of information bits may include at least one of the following: a first time-domain indicator; a second time-domain indicator; an index indicator; or an update indicator.

[0197] In one embodiment, the first bit sequence includes: third type of information bits;

[0198] The third type of information bits are mapped to a third index set; the third index set includes at least one of the following: 63 95 110 111 117 118 119 121 122 123 124 125 157 158 159 171 173 174 175 179 181 182 183 185 186 187 188 199 203 205 206 207 211 212 213 214 216 217 218 220 226 227 228 229 230 232 233 234 240 241; 239 247 251 253 254 319 351 367 375 377 378 379 380 381 414 415 427 430 431 435 437 438 439 441 442 443 444 455 459 461 462 463 467 469 470 472 473 474 476 483 484 485 486 488 489 490 492 496 497; 507 509 510 511 751 759 763 765 766 831 863 879 887 889 890 891 892 893 894 927 942 943 947 949 950 951 953 954 955 956 971 973 974 975 979 981 982 984 985 986 988

[0207] 995 996 997 998 1000 1001 1002 1008 1009.

[0208] In one embodiment, Figure 4This is a flowchart of another sequence transmission method provided in an embodiment of this application. This embodiment is applied to a wireless communication scenario where decoding is performed using non-fixed bits. This embodiment can be executed by a receiving end. In one example, the receiving end can be a base station or a terminal. Figure 4 As shown, this embodiment includes: S410-S430.

[0209] S410, Receive the second bit sequence transmitted through the physical broadcast channel.

[0210] S420. Perform rate dematching on the second bit sequence to obtain the encoded bit sequence.

[0211] S430. Decode the encoded bit sequence to obtain the first bit sequence.

[0212] In some embodiments, demodulation and descrambling operations are performed before rate dematching (de-rate matching) is performed on the second bit sequence.

[0213] In some embodiments, the second bit sequence can be referred to as the sequence to be decoded / decoded. The PBCH is received, and the sequence to be decoded in the PBCH is demodulated, descrambled, decoded, etc., to obtain the first bit sequence.

[0214] In one embodiment, the first bit sequence includes at least one of the following: a first time-domain indicator for indicating the system frame number SFN; a time-frequency domain information indicator; a first type of terminal access support status; a subcarrier spacing; demodulation reference signal (DMRS) configuration parameters; an access support status indicator; a same-frequency reselection indicator; a synchronization signal index / channel index; a transmit receiver point (TRP) index; a second time-domain indicator; a wake-up signal indicator; a system information block (SIB1) related indicator; an update indicator; and multiple-input multiple-output (MIMO) related configuration parameters.

[0215] In one embodiment, the sequence transmission method applied to the receiving end further includes:

[0216] Generate scrambling sequences based on the candidate set of the first information;

[0217] Descramble the first bit sequence according to the scrambling sequence; and / or,

[0218] Based on the candidate set of the second information, generate scrambling code sequences respectively;

[0219] The second bit sequence is descrambled according to the scrambling code sequence;

[0220] The first information and / or the second information each include at least one of the following: a first time domain indication; a portion of the bits in the first time domain indication; a second time domain indication; a portion of the bits in the second time domain indication; an SSB index; synchronization signal index information / channel index information; a portion of the bits in the synchronization signal index information / channel index information; an update indication; and a transmission receiver point (TRP) index.

[0221] In one example, the candidate set for the first information is all possible bit values ​​in the first information; the candidate set for the second information is all possible bit values ​​in the second information.

[0222] In one embodiment, the time-frequency domain information indication includes at least one of the following:

[0223] First time-frequency domain information indication;

[0224] Second time-frequency domain information indication;

[0225] Among them, the first time-frequency domain information indication is used to indicate the time-frequency domain information indication of the second type of terminal;

[0226] The second time-frequency domain information indicator is used to indicate the time-frequency domain information of the first type of terminal.

[0227] In one embodiment, the first time-frequency domain information indication includes first time-domain information and first frequency-domain information;

[0228] The second time-frequency domain information indication includes second frequency domain information;

[0229] Among them, the bandwidth / occupied RB / occupied RE indicated by the first frequency domain information is greater than the bandwidth / occupied RB / occupied RE indicated by the second frequency domain information, and the time domain information of the first type of terminal is the same as that of the second type of terminal.

[0230] In one embodiment, the first time-frequency domain information indication includes time-domain resource information and frequency-domain resource information;

[0231] The second time-frequency domain information indicates whether the second frequency domain resource information is enabled. If the indication is enabled, the second frequency domain resource information is determined according to the frequency domain resource information indicated by the first time-frequency domain information and the predefined rules.

[0232] In one embodiment, the first type of terminal includes one of the following:

[0233] A terminal with a bandwidth of the first preset bandwidth;

[0234] Low-power wide-area (LPWA) type terminals.

[0235] In one embodiment, in response to the first bit sequence including at least one of the following, the first bit sequence includes at least a subcarrier interval:

[0236] Carrier aggregation indication in idle or inactive state;

[0237] More than one carrier indication message;

[0238] Secondary cell / secondary cell / secondary carrier indication information.

[0239] In one embodiment, the bearer signal of the TRP index further includes one of the following: primary synchronization signal PSS; secondary synchronization signal SSS.

[0240] In one embodiment, the second time-domain indicator is used to indicate the number of transmission intervals at one of the following granularities:

[0241] 1ms; 2ms; 2.5ms; 3ms.

[0242] In one embodiment, the relevant indication of SIB1 is used to indicate at least one of the following: SIB1 does not exist and initial access cannot be performed; SIB1 does not exist and initial access is permitted; SIB1 exists.

[0243] In one embodiment, the update indication is located in one of the following: the first X bits of a first bit sequence; the first X bits of a second bit sequence; the first X bits of a encoded bit sequence; or carried in a PSS or SSS.

[0244] In one embodiment, the relevant configuration parameters of MIMO include one of the following: number of antennas; precoding matrix.

[0245] In one embodiment, a portion of the bits in the first bit sequence is carried by the main information block (MIB), and another portion of the bits is carried by the L1 layer.

[0246] The information carried by the L1 layer includes at least one of the following: at least some bits in the first time domain indicator; the second time domain indicator; the update indicator; and the synchronization signal index information / channel index information.

[0247] In one embodiment, some bits in the first bit sequence are carried by the MIB, another part are carried by the L1 layer, and yet another part are carried in a predefined manner;

[0248] The information carried by the L1 layer or in a predefined manner includes at least one of the following: at least some bits in the first time domain indicator; the second time domain indicator; synchronization signal index information / channel index information; and update indicator.

[0249] In one embodiment, at least a portion of the bits in the first time-domain indication include one of the following:

[0250] When the transmission period of SSB or PBCH is 20ms, the second least significant bit and / or the third least significant bit of SFN;

[0251] When the transmission period of SSB or PBCH is 40ms, the third least significant bit and / or the fourth least significant bit of SFN;

[0252] When the transmission period of SSB or PBCH is 80ms, the fourth least significant bit of SFN;

[0253] The fifth least significant bit of SFN when the transmission period of SSB or PBCH is 160ms.

[0254] In one embodiment, the first bit sequence includes: a first type of information bits;

[0255] The first type of information bits are mapped to the first index set; the first index set includes indices in the data candidate index set whose indices are less than M.

[0256] In one embodiment, the first index set includes at least one of the following:

[0257] 111,119,123,125,126,127;

[0258] 246,249,250,252,223,239,251,247,253,254,255;

[0259] 495,503,507,509,510,511.

[0260] In one embodiment, the first bit sequence includes: a second type of information bits;

[0261] Among them, the second type of information bits are mapped to the second index set;

[0262] The second set of indexes includes at least one of the following:

[0263] The set of indexes with the lowest reliability in the candidate index set;

[0264] The set of indexes with the lowest reliability in the candidate index set, excluding the first set of indexes.

[0265] In one embodiment, the first bit sequence includes: a second type of information bits;

[0266] Among them, the second type of information bits are mapped to the second index set;

[0267] The second set of indexes includes at least one of the following: 157 110 117 212 171 226 216 158 118 173 121 199 179 228 174 122 203 63 181 232 124 205 182 211 185 240 206 95 213 186 227 111 214 188 217 229 159 119 218 230 233 175 123 220 183 234 125 241 207 187; 427 414 223 472 455 377 435 319 484 430 488 239 378 459 437 380 461 496 351 467 438 251 462 442 441 469 247 367 253 375 444 470 483 415 485 473 474 254 379 431 489 486 476 439 490 463 381 497 492 443; 831 947 507 889 984 751 942 996 971 890 509 949 973 1000 892 950 863 759 1008 510 979 953 763 974 954 879 981 982 927 995 765 956 887 985 997 986 943 891 998 766 511

[0275] 988 1001 951 1002 893 975 894 1009 955.

[0276] In one embodiment, the first bit sequence includes: third type of information bits;

[0277] The third type of information bits are mapped to the third index set; the index position in the third index set is the position with the lowest reliability in the data candidate index set.

[0278] In one embodiment, the first bit sequence includes: third type of information bits;

[0279] The third type of information bits are mapped to a third index set; the third index set includes at least one of the following: 63 95 110 111 117 118 119 121 122 123 124 125 157 158 159 171 173 174 175 179 181 182 183 185 186 187 188 199 203 205 206 207 211 212 213 214 216 217 218 220 226 227 228 229 230 232 233 234 240 241; 239 247 251 253 254 319 351 367 375 377 378 379 380 381 414 415 427 430 431 435 437 438 439 441 442 443 444 455 459 461 462 463 467 469 470 472 473 474 476 483 484 485 486 488 489 490 492 496 497; 507 509 510 511 751 759 763 765 766 831 863 879 887 889 890 891 892 893 894 927 942 943 947 949 950 951 953 954 955 956 971 973 974 975 979 981 982 984 985 986 988

[0288] 995 996 997 998 1000 1001 1002 1008 1009.

[0289] In one embodiment, decoding the encoded bit sequence includes:

[0290] The mother code length is selected based on the length of the first bit sequence and / or the sequence length and / or code rate after rate matching;

[0291] The candidate index set for data is determined based on the mother code length and channel reliability, and then decoding is performed.

[0292] It should be noted that the explanation and implementation of parameters such as the first bit sequence, the second bit sequence, the first time domain indicator, the time-frequency domain information indicator, the first preset bandwidth, and the LPWA type terminal involved in the sequence transmission method applied to the receiving end can be found in the description of the corresponding parameters in the sequence transmission method applied to the sending end, and will not be repeated here.

[0293] In one specific embodiment, the bit information carried in the physical broadcast channel is described in detail.

[0294] The information carried in the physical broadcast channel (also referred to as the first bit sequence) includes at least one of the following: a first time-domain indication for indicating SFN; time-frequency domain information indication; access support status for Type I terminals; subcarrier spacing; DMRS configuration parameters; indication of access support status; same-frequency reselection indication information; synchronization signal index information / channel index information; TRP index; a second time-domain indication; a wake-up signal indication; SIB1 related indication; update indication; MIMO related configuration parameters; PRACH resource indication information; beam information indication; PSS pattern, SSS pattern, PBCH pattern, or SSB pattern indication; and AI related indication information.

[0295] In one implementation, the first time-domain indicator is used to indicate the system frame number (SFN):

[0296] The bit length of the first time domain indicator is 5 to 10 bits. In one implementation, the bit length of the first time domain indicator is 5 to 12 bits. For example, the bit length of the first time domain indicator is 10 bits.

[0297] In one implementation, the time-frequency domain information indicator is used to indicate: CORESET and / or search space information, or the initial BWP.

[0298] In one specific example, the time-frequency domain information is used at least to determine the resource location for receiving SIB1 / paging. CORESET indicates the frequency domain location, and the search space indicates the time domain location.

[0299] In a specific example, the time-frequency domain information indicator is used to indicate time-domain information and frequency-domain information, respectively.

[0300] In a specific example, the time-frequency domain information indicator is used to indicate the initial BWP information, which has both time-domain and frequency-domain information. For example, multiple initial BWP configurations are predefined, each containing both time-domain and frequency-domain information. The first bit sequence indicates one of these configurations. For example, it indicates that an index corresponds to an initial BWP configuration.

[0301] In a specific example, the time-frequency domain information indication includes: a first time-frequency domain information indication, and / or a second time-frequency domain information indication;

[0302] Among them, the first time-frequency domain information indication is the time-frequency domain information indication of the second type of terminal (e.g., normal UE);

[0303] The second time-frequency domain information indication is the time-frequency domain information indication for the first type of terminal (e.g., a 3MHz, LPWA type terminal).

[0304] In some embodiments, normal UE / second type terminal refers to a UE with a maximum bandwidth greater than a first preset bandwidth, or a UE that does not meet one or more characteristics of an LPWA type terminal.

[0305] Since different UEs may have different bandwidths, if time-frequency domain resources are indicated according to the UE with low bandwidth, it will affect the performance of UEs supporting high bandwidth, and the UE with high bandwidth will not be able to meet higher requirements. If time-frequency domain resource information is indicated according to the UE with high bandwidth, the UE with low bandwidth can only obtain partial information from the UE with high bandwidth, which will affect the performance of the UE with low bandwidth. Therefore, time-frequency domain resources are indicated separately for different UEs.

[0306] Optionally, the first time-frequency domain information indication includes first time-domain information and first frequency-domain information; the second time-frequency domain information indication includes second frequency-domain information. The bandwidth / occupied RB / occupied RE indicated by the first frequency-domain information is greater than the bandwidth / occupied RB / occupied RE indicated by the second frequency-domain information. That is, the time-domain information used by different types of UEs is the same and is indicated by the first time-frequency domain information; the frequency-domain information used by different types of UEs is different and can be indicated by the first time-frequency domain information and the second time-frequency domain information respectively.

[0307] Optionally, the first time-frequency domain information indication and / or the second time-frequency domain information indication may each include at least one of the following: a time-domain information indication, a first frequency-domain information indication, and a second frequency-domain information indication. The bandwidth / occupied RB / occupied RE of the first frequency-domain information indication is greater than the bandwidth / occupied RB / occupied RE of the second frequency-domain information indication. For example, the first time-frequency domain information indication includes both a time-domain information indication and a second frequency-domain information indication.

[0308] Optionally, the first time-frequency domain information indication and / or the second time-frequency domain information indication may each include at least one of the following: a first time-domain information indication, a second time-domain information indication, a first frequency-domain information indication, and a second frequency-domain information indication. For example, the first time-frequency domain information indication includes a first time-domain information indication and a first frequency-domain information indication. The second time-frequency domain information indication includes a second time-domain information indication and a second frequency-domain information indication. For example, the first time-frequency domain information indication includes a first time-domain information indication, a second time-domain information indication, and a first frequency-domain information indication. The second time-frequency domain information indication includes a second frequency-domain information indication. The bandwidth / occupied RB / occupied RE of the first frequency-domain information indication is greater than the bandwidth / occupied RB / occupied RE of the second frequency-domain information indication.

[0309] Optionally, the first time-frequency domain information indication and / or the second time-frequency domain information indication may each include at least one of the following: a first initial BWP indication and a second initial BWP indication. For example, the first time-frequency domain information indication includes a first initial BWP indication, and the second time-frequency domain information indication includes a second initial BWP indication.

[0310] Optionally, the first time-frequency domain information indicator and / or the second time-frequency domain information indicator may include: an initial BWP indicator. Multiple sets of BWP configuration information are predefined, each set including one of the following: two sets of frequency domain configurations; two sets of frequency domain configurations and two sets of time domain configurations; or two time domain configurations. The first time-frequency domain information indicator and / or the second time-frequency domain information indicator are one of the predefined multiple sets of BWP configuration information.

[0311] Optionally, the first frequency domain information / first frequency domain information indication / first initial BWP is used for the second type of UE. The second frequency domain information / second frequency domain information indication / second initial BWP is used for the first type of UE.

[0312] Optionally, the first time-domain information / first time-domain information indication / first initial BWP is used for the second type of UE. The second time-domain information / second time-domain information indication / second time-domain BWP is used for the first type of UE.

[0313] Optionally, the first time-domain information is the same as the second time-domain information. Optionally, the second time-domain information is not indicated.

[0314] Optionally, multiple time-domain resources and multiple frequency-domain resources are predefined. The first time-frequency domain information indicates one of the time-domain resources and one of the frequency-domain resources. The second time-frequency domain information indicates whether the second frequency-domain resource information is enabled. If enabled, the second resource information is determined based on the frequency-domain resource information indicated by the first time-frequency domain information and predefined rules. The predefined rules are one of the following: the first X RBs of the indicated frequency-domain resource, the last X RBs of the indicated frequency-domain resource, the middle X RBs of the indicated frequency-domain resource, or a predetermined X RBs of the indicated frequency-domain resource.

[0315] The calculation rule for the middle X RBs can be as follows: Assume that the frequency domain resource information indicated by the first time-frequency domain information occupies Y RBs, and the RB number / index at the starting position is F1 start.

[0316] The starting position of the second resource is one of the following:

[0317] F1start+function1(Y / 2)-function2(X / 2);

[0318] F1start+function(Y / 2-X / 2);

[0319] F1start+Y / 2-function2(X / 2);

[0320] F1start+Y / 2-X / 2;

[0321] F1start+function1(Y / 2)-X / 2;

[0322] function(), function1(), function2() can be one of the following: round up, round down, round to the nearest integer, or round to the nearest integer.

[0323] The second resource is X consecutive RBs starting from the starting position of the second resource.

[0324] Optionally, multiple time-domain resources and multiple frequency-domain resources are predefined. The first time-frequency domain information indicates one of the time-domain resources and one of the frequency-domain resources. The second time-frequency domain information indicates the number of redundancies (RBs) of the second frequency-domain resource. The second resource information is determined based on the frequency-domain resource information indicated by the first time-frequency domain information, the number of RBs of the second frequency-domain resource indicated by the second time-frequency domain information, and predefined rules. The predefined rules are the same as above. The indicated number of RBs for the second resource can be 0, indicating that there is no second resource.

[0325] Optionally, multiple time-domain resources and multiple sets of frequency-domain resources are predefined. Each set of frequency-domain resources includes one or two sets of frequency-domain resource information. The first bit sequence indicates one of the predefined multiple time-domain resources and one of the predefined multiple sets of frequency-domain resources. The time-frequency domain information indicates one of the predefined multiple time-domain resources and one of the predefined multiple sets of frequency-domain resources.

[0326] In one implementation, the first type of terminal access support status is used to indicate whether the first type of terminal access is supported, or CORESET, search space type indication information.

[0327] Among them, the 3MHz, LPWA type terminal indicates:

[0328] Eligible terminals are blocked from accessing the network, or terminals that support the configuration are blocked from accessing the network.

[0329] Terminals that do not meet the requirements are prohibited from accessing the network, or terminals that do not support the configuration are prohibited from accessing the network.

[0330] In one implementation, the first type of terminal access support status is used to indicate whether the first type of terminal access is supported.

[0331] In a specific example, the UE type can be implicitly indicated by specifying the CORESET and search space type information. For example, a Type I UE (3MHz.LPWA UE) corresponds to a Type I CORESET and / or search space type, and a Type II UE (normal UE) corresponds to a Type II CORESET and / or search space type.

[0332] For example, the first type of terminal access support indicates a 3MHz, LPWA type terminal, or indicates a first type of CORESET and / or search space type:

[0333] In one specific example, eligible terminals are blocked from access, or terminals that support the configuration are blocked from access.

[0334] In one specific example, terminals that do not meet the requirements are blocked from access, or terminals that do not support the configuration are blocked from access.

[0335] In a specific example, 1 bit indicates whether the first type of UE can access the network; bit '1' means that the first type of UE can access the network, and bit '0' means that the first type of UE cannot access the network.

[0336] In a specific example, when indicating that a first type of UE can access the network, the first bit sequence includes second time-frequency domain information; when indicating that a first type of UE cannot access the network, the first bit sequence does not include second time-frequency domain information.

[0337] In a specific example, when the first bit sequence includes 'whether the first type of terminal access is supported' information, the first bit sequence includes second time-frequency domain information.

[0338] In one implementation, regarding the subcarrier spacing:

[0339] When the UE supports idle / inactive mode CA, the UE needs this instruction.

[0340] In some embodiments, the first bit sequence includes at least two time-frequency domain resource information indications and a subcarrier spacing indication.

[0341] In some embodiments, the first bit sequence includes a time-frequency domain resource information indication and no subcarrier spacing indication.

[0342] In one embodiment, in response to the first bit sequence including at least one of the following, the first bit sequence includes at least a subcarrier interval:

[0343] Carrier aggregation indication in idle or inactive state;

[0344] More than one carrier indication message;

[0345] Secondary cell / secondary cell / secondary carrier indication information.

[0346] In one implementation, the access support indication is used to indicate whether access for the second type of terminal is supported.

[0347] For example, the access support status indication can be used to indicate whether power-saving / energy-efficient UE access is supported.

[0348] In one implementation, the access support status indicator is used to indicate whether access is supported.

[0349] In one implementation, regarding the synchronization signal / channel index information:

[0350] For example, an SSB index, or a PSS index, or an SSS index, or a PBCH index.

[0351] In one embodiment, the base station periodically transmits SSB / PSS / SSS / PBCH, and transmits SSB / PSS / SSS / PBCH in multiple beam directions in each period, with each beam direction corresponding to an index. Figure 5 This is a schematic diagram of a configuration in which one cycle includes four beam directions, provided by an embodiment of this application. Figure 5 As shown, it contains four beam directions within one cycle.

[0352] To better decode / receive SSB, PSS, SSS, or PBCH, beam combining can be performed, followed by decoding. Multiple beam combining operations can improve decoding performance.

[0353] In a specific example, beam combining can be used:

[0354] Since the beam transmission order is the same or predefined in each cycle, the UE can receive / decode signals from the same beam by combining them.

[0355] Optionally, the PBCH period is A ms, and the UE can perform PBCH merging and decoding of the same beam within P periods.

[0356] P is a predefined positive integer less than or equal to 16.

[0357] For example, P = 2, 3, or 4.

[0358] Optionally, P is related to the UE type. Different UE types correspond to different P values.

[0359] Optionally, P is a signaling indication (e.g., the first bit sequence).

[0360] In a specific example, cross-beam soft combining can be used:

[0361] In some embodiments, since the beam transmission order is the same or predefined within each cycle, the relationship between the indices corresponding to different beam directions is determined. Therefore, the combined reception / decoding of different beam signals can be performed based on the relationship between the indices. Even if the indices are unknown before decoding, the relationship between indices at different positions is determined. The relationship between the indices (e.g., the difference) can be treated as known information / soft information, thereby allowing the information at different index positions to be combined and decoded.

[0362] Optionally, the PBCH period is A ms, and the UE can perform cross-beam PBCH combining and decoding within P periods.

[0363] P is a predefined positive integer less than or equal to 16.

[0364] For example, P = 1, 2, 3, or 4.

[0365] Optionally, P is related to the UE type. Different UE types correspond to different P values.

[0366] Optionally, P is a signaling indication (e.g., the first bit sequence).

[0367] In a specific example, the synchronization signal / channel index information is associated with the frequency range, signal type, and subcarrier spacing.

[0368] Different frequency ranges and signal types and / or subcarrier spacings correspond to different numbers of synchronization signals / channels in each cycle.

[0369] Optional, the correspondence is predefined:

[0370] For example, different frequency ranges correspond to different numbers of synchronization signals / channels in each cycle.

[0371] For example, the number of signals in each cycle differs for different signal types (SSB / PSS / SSS / PBCH).

[0372] For example, different subcarrier spacings correspond to different numbers of signals in each cycle.

[0373] For example, the number of signals per cycle varies depending on the frequency range and the subcarrier spacing.

[0374] For example, the number of signals in each cycle varies for different frequency ranges and different signal types (SSB / PSS / SSS / PBCH).

[0375] Optionally, the signal / channel index within each period is 0, 1, ..., N-1. N is the number of signals / channels within one period.

[0376] Optionally, the signal / channel index within each time period is 0, 1, ..., N-1. N is the number of signals / channels within a time period.

[0377] The time period is predefined.

[0378] For example, a time period of half a frame

[0379] For example, the time period is one frame.

[0380] In one implementation, for the TRP index:

[0381] The TRP index can be carried by PSS and / or SSS.

[0382] The TRP index is used to indicate which TRP is sending the current signal / channel.

[0383] Optionally, if there is only one TRP, the TRP index is 0.

[0384] Optionally, whether m-TRP is enabled is indicated by PSS / SSS.

[0385] When the PSS / SSS indicator is enabled, the TPR index is carried in the PBCH (first bit sequence).

[0386] When the PSS / SSS indicator is not enabled, the TRP index is not included in the PBCH (first bit sequence).

[0387] Optionally, the TRP index is carried in the PSS / SSS.

[0388] In one implementation, for the second time-domain indication:

[0389] In a specific example, the second time-domain indicator can be a half-frame indicator.

[0390] In a specific example, the second time domain indicator is used to indicate the number of time intervals, or an index within a time period.

[0391] For example, the second time-domain indicator is used to indicate the number of transmission intervals at one of the following granularities: 1ms, 2ms, 2.5ms, 3ms.

[0392] In one example, where the physical broadcast channel is associated with a compact synchronization signal, a compact physical broadcast channel, or a compact SSB, the second time-domain indication is used to indicate the number of transmission intervals at one of the following granularities: 1 ms; 2 ms; 2.5 ms; 3 ms. The transmission intervals for the compact (Type 1) SSB / PBCH / synchronization signal are 1 ms; 2 ms; 2.5 ms or 3 ms.

[0393] When the physical broadcast channel is associated with a Type II synchronization signal, a physical broadcast channel, or an SSB, the second time-domain indication is used to indicate a 5ms transmission interval. The transmission interval for a Type II SSB is 5ms.

[0394] In one example, the second time-domain indicator is used to indicate an index. This index indicates which PBCH within a frame / half-frame / time period the PBCH belongs to. For example, index 0 indicates that the PBCH is the first PBCH within a frame. This indicates the specific location of the PBCH when the interval between PBCHs is fixed. The time period is predefined.

[0395] This indicates the index of the first bit sequence within a time period. Multiple first bit sequences are transmitted within a time period, and the transmission positions or intervals of the first bit sequences within that time period are predefined. Therefore, based on the index, the position within that time period or the time-domain position information of the transmitted first bit sequence can be determined.

[0396] The time period is defined as frame / half-frame / predefined time.

[0397] For example, if the first bit sequence is transmitted every X ms within a period, and this transmission is repeated Y times, then the second time-domain index i = 0, 1, ..., Y-1 corresponds to one transmission. Furthermore, the interval between the first bit sequence and the starting position within the period can be determined based on the index, which is i*X.

[0398] In one implementation, regarding WUS-related instructions:

[0399] WUS-related indications include at least the time-frequency domain resource information transmitted by the UE for uplink WUS.

[0400] Optionally, multiple WUS configurations are predefined, with WUS-related indicators specifying one of them. Uplink WUS can be used to request the transmission of SIB1 or SSB in a second / energy-saving cell. When a UE needs SIB1 or SSB but there is no SIB1 or SSB available in the cell, it can transmit uplink WUS in the corresponding resources according to the WUS-related indicators.

[0401] In one implementation, the instructions related to SIB1 are as follows:

[0402] The SIB1-related indication indicates at least one of the following: the cell has no SIB1 transmission and cannot initiate access; the cell has no SIB1 transmission but can initiate access; the cell has SIB1 transmission.

[0403] In some embodiments, the SIB1-related indication indicates the resource information of SIB1. When SIB1 is transmitted in the cell, the PBCH / first bit sequence includes the resource information indication of SIB1.

[0404] In some embodiments, the SIB1-related indication indicates resource information for on-demand SIB1. When the cell is an SIB1-less cell, or the UE can send an uplink WUS request SIB1, or the cell can send on-demand SIB1, the PBCH / first bit sequence includes an indication of resource information for on-demand SIB1.

[0405] SIB1-related indications indicate at least one of the following: on demand SIB1 resource information indication, SIB1 resource information indication, no SIB1 transmission in the cell, or SIB1 transmission in the cell.

[0406] The SIB1-related indication information is related to the frequency range, signal type, and subcarrier spacing.

[0407] Optionally, whether there is SIB1-related indication information in the first bit sequence is determined based on at least one of the frequency range, signal type, and subcarrier spacing.

[0408] For example, the first bit sequence corresponding to frequency range 1 contains an indication related to SIB1, while the first bit sequence corresponding to frequency range 2 does not contain an indication related to SIB1.

[0409] Optionally, the relevant indication content of SIB1 is determined based on at least one of the frequency range, signal type, and subcarrier spacing.

[0410] For example, the SIB1-related indications in the first bit sequence corresponding to frequency range 1 include: no SIB1 and initial access is not possible; no SIB1 but initial access is possible; and SIB1 is present. The SIB1-related indications in the first bit sequence corresponding to frequency range 2 include: no SIB1 and initial access is not possible; and SIB1 is present.

[0411] Optionally, the relevant indication content of SIB1 is determined based on at least one of the frequency range, signal type, subcarrier spacing, and cell type.

[0412] For example, the SIB1-related indications in the first bit sequence corresponding to frequency range 1 include: SIB1 resource indications (or time-frequency domain resource indications). The SIB1-related indications in the first bit sequence corresponding to frequency range 2 include: on-demand SIB1 resource information indications.

[0413] For example, the SIB1-related indications in the first bit sequence corresponding to cell 1 include: SIB1 resource indication (or time-frequency domain resource indication). The SIB1-related indications in the first bit sequence corresponding to energy-saving cell include: on-demand SIB1 resource information indication.

[0414] In one implementation, regarding the update instruction:

[0415] The update indicator indicates whether there are any updates to the first bit sequence other than the SFN. In some embodiments, the update indicator indicates whether there are any updates to the information in the first bit sequence other than the first time-domain indicator and / or the second time-domain indicator and / or the SSB index and / or the synchronization signal index information / channel index information and / or the TRP index.

[0416] Optionally, the update indicator is located in the first X bits of the first bit sequence.

[0417] Optionally, the update indicator is located in the first X bits of the second bit sequence.

[0418] Optionally, the update indicates that the corresponding bit is located in the first X bits of the encoded bit after polar encoding.

[0419] Place it early so that the terminal can get information about updates as soon as possible. If there are no updates, the terminal can end decoding earlier without needing to decode the remaining bits.

[0420] The update instruction can also be carried on the SSS / PSS.

[0421] Optionally, the PSS / SSS sequence is generated at least according to the update instruction.

[0422] Optionally, the sequence generation seed for PSS / SSS is at least related to the update indication.

[0423] In one implementation, the MIMO-related configuration parameters may include at least one of the following: number of antennas; precoding matrix.

[0424] Multiple precoding matrices are predefined, and one of them is indicated.

[0425] In one implementation, regarding PRACH resource indication information:

[0426] In a specific example, the resource for which the UE initiates a PRACH (sends msg1) can be indicated by the information carried in the PBCH.

[0427] For example, indicating the switching of PRACH resources;

[0428] For example, an index indicating a PRACH resource. Different indices correspond to different PRACH resource configurations. Or, different indices correspond to different mappings between PRACH resources and SSB / PBCH. Optionally, the configuration or mapping relationship between the index and the PRACH resource is predefined.

[0429] In one implementation, the beam information is indicated as follows:

[0430] In one specific example, the beam information indicates that the beam of the PBCH, SSS, PSS, or SSB is a wide beam, or indicates that the beam of the PBCH, SSS, PSS, or SSB is a narrow beam. For example, 1 bit indicates that bit '1' corresponds to a wide beam and bit '0' corresponds to a narrow beam.

[0431] In one implementation, the following instructions are given for PSS pattern, SSS pattern, PBCH pattern, or SSB pattern:

[0432] In a specific example, PSS / SSS / PBCH / SSB transmission is a burst transmission, meaning a single transmission includes multiple repetitions. Different repetitions can correspond to different beam directions or different indices. One burst is transmitted per cycle. Therefore, within a cycle, multiple transmissions within a burst can be located at different time-domain positions. All time-domain positions / numbers within a burst can be referred to as the PSS / SSS / PBCH / SSB pattern, with different patterns corresponding to different time-domain positions / numbers. The PSS / SSS / PBCH / SSB pattern can be predefined; knowing the PSS / SSS / PBCH / SSB pattern allows the terminal to determine the time-domain position for receiving PSS / SSS / PBCH / SSB. Alternatively, the receiving position for PSS / SSS / PBCH / SSB can be determined based on the PSS / SSS / PBCH / SSB pattern and / or the index.

[0433] In a specific example, multiple PSS pattern / SSS pattern / PBCH pattern / SSB pattern are configured.

[0434] Optionally, two PSS pattern / SSS pattern / PBCH pattern / SSB pattern can be configured, and the pattern switching can be indicated by the PSS pattern, SSS pattern, PBCH pattern, or SSB pattern.

[0435] Optionally, multiple PSS pattern / SSS pattern / PBCH pattern / SSB pattern can be configured, and the pattern index can be indicated by the PSS pattern, SSS pattern, PBCH pattern, or SSB pattern.

[0436] Figure 6 This is a schematic diagram illustrating the configuration of a pattern and cycle provided in an embodiment of this application. For example... Figure 6 As shown, there are two patterns; pattern 1 has 6 transmissions per burst, and pattern 2 has 4 transmissions per burst, and the interval between two transmissions in pattern 1 is greater than the interval between two adjacent transmissions in pattern 2.

[0437] In one implementation method, regarding AI-related instruction information:

[0438] In a specific example, AI-related indication information is used to indicate whether AI-based SSS / PSS / PBCH / SSB detection is enabled:

[0439] AI-based SSS / PSS / PBCH / SSB detection involves the base station transmitting a portion of the SSS / PSS / PBCH / SSB data. The terminal then performs measurements based on the transmitted SSS / PSS / PBCH / SSB data and uses an AI model to deduce the measurement results for the remaining (untransmitted) SSS / PSS / PBCH / SSB data. For example, in the diagram above, in pattern 1, SSS / PSS / PBCH / SSB data at indices 0, 1, and 2 are transmitted, while those at indices 3, 4, and 5 are not. The terminal uses an AI model to deduce the measurement results for SSS / PSS / PBCH / SSB data at indices 3, 4, and 5 based on the received data at indices 0, 1, and 2.

[0440] Implicitly, it instructs the base station to only transmit a portion of the SSS / PSS / PBCH / SSB, and the transmitted SSS / PSS / PBCH / SSB is predefined.

[0441] In a specific example, AI-related indication information is used to indicate the AI ​​model index. The UE uses the AI ​​model corresponding to the indicated AI model index to perform AI processing.

[0442] In one implementation, the first bit sequence also includes reserved bits.

[0443] In one implementation, at least one of the following information may be carried on the SSS / PSS: update indication; synchronization signal / channel index information; TRP index.

[0444] The synchronization signal / channel index information is an index of the synchronization signal / channel index information within a time period. For example, the synchronization signal / channel index information is repeated M times within a time period, and the index information includes 0, 1, ..., M-1.

[0445] In one implementation, carrying the TRP index in the SSS / PSS enables the UE to quickly obtain the information and facilitates PBCH decoding.

[0446] In one specific embodiment, the method of carrying the first bit sequence is described in detail:

[0447] In one example, the entire first bit sequence is carried by the MIB;

[0448] In one example, n bits in the first bit sequence are carried by MIB, and m bits are carried by L1;

[0449] The information carried by L1 includes: some or all of the bits in the first time domain indicator; the second time domain indicator; the update indicator; and the synchronization information index (synchronization signal / channel index information index).

[0450] In one example, bit a in the first bit sequence is carried by MIB, bit b by L1, and bit c by a predefined method.

[0451] It should be noted that the first bit sequence may contain p bits carried in multiple ways, such as through MIB and a predefined method, or through L1 and a predefined method.

[0452] The information carried by L1 or in a predefined manner includes: some or all of the bits in the first time domain indicator; the second time domain indicator; and the update indicator.

[0453] Predefined carrying methods include: carrying via the DMRS sequence, carrying via the RV version, carrying via the time-frequency domain offset of the DMRS / PBCH, carrying via the scrambling sequence, carrying via the sequence initialization value, carrying via the interval between two adjacent SSS / PSS / PBCH / SSB, carrying via the positional relationship between the PBCH and the SSS / PSS, and carrying via the process of selecting bits from the encoded bit sequence to obtain the second bit sequence. For example, carrying via the start position, bit sequence length, or bit index.

[0454] In a specific example, this is carried by DMRS sequences, with different DMRS sequences representing different indications. For example, different DMRS sequences may represent bits '00', '01', '10', and '11', respectively. Alternatively, different DMRS sequences may represent bits '0' and '1', respectively.

[0455] In a specific example, the RV version is used to carry different indications. For example, different RV versions represent bits '00', '01', '10', and '11' respectively. For example, different versions represent bits '0' and '1' respectively. For example, RV0 and RV2 represent bits '0', and RV3 and RV4 represent bits '1'.

[0456] In a specific example, the information is carried by scrambling sequences, with different scrambling sequences representing different indications. For example, different scrambling sequences may represent bits '00', '01', '10', and '11', respectively. Alternatively, different scrambling sequences may represent bits '0' and '1', respectively.

[0457] In a specific example, the sequence initialization value is used to carry different indications. For example, different sequence initialization values ​​correspond to bits '00', '01', '10', and '11', respectively. Alternatively, different sequence initialization values ​​could represent bits '0' and '1', respectively.

[0458] In a specific example, the process of obtaining the second bit sequence by selecting bits from the encoded bit sequence is carried out. For example, different starting positions represent different indications. For example, different starting positions represent bits '00', '01', '10', and '11' respectively. For example, different starting positions represent bits '0' and '1' respectively. For example, different bit sequence lengths represent different indications. For example, different bit sequence lengths represent bits '00', '01', '10', and '11' respectively. For example, different bit sequence lengths represent bits '0' and '1' respectively. For example, different bit indices represent different indications. For example, different bit indices represent bits '00', '01', '10', and '11' respectively. For example, different bit indices represent bits '0' and '1' respectively.

[0459] In a specific example, the interval between two adjacent SSS / PSS / PBCH / SSB can be the interval between two adjacent SSS / PSS / PBCH / SSB within a burst; different intervals indicate different bit information. For example, the first interval indicating the second time domain is a half-frame indication, and the second interval indicating the second time domain is a quantity indication of 1ms, 2ms, 2, 5ms, or 3ms. For example, one interval represents bit '0', and another interval represents bit '1'.

[0460] In a specific example, regarding the positional relationship between PBCH and SSS / PSS:

[0461] Positional relationships can be time-domain intervals, frequency-domain position offsets, etc.

[0462] Different positional relationships are used to indicate different bit information;

[0463] For example, different positional relationships are used to indicate the PSS / SSS / PBCH / SSB pattern. For instance, one positional relationship represents bit '0', and another positional relationship represents bit '1'.

[0464] For example, different positional relationships are used to indicate SIB1-related indications.

[0465] Among them, some bits in the first bit field include at least one of the following: the 1st, 2nd, 3rd, 4th, 5th, and 6th low bits of SFN;

[0466] When the period of PBCH is 20ms, this part of the bits includes the second least significant bit of SFN;

[0467] When the period of PBCH is 40ms, this part of the bits includes the third least significant bit of SFN;

[0468] When the period of PBCH is 80ms, this part of the bits includes the fourth least significant bit of SFN;

[0469] When the period of PBCH is 160ms, this part of the bits includes the fourth least significant bit of SFN;

[0470] This is because the change in the SFN bit is related to the period. The SFN is incremented by 1 every 10ms. Represented as a binary number, if the period is 20ms, the value of the next SFN is the previous SFN value plus 2. After binary calculation, the last one remains unchanged (0->1->0, or 1->0->1). Similarly, the bit positions of the SFN that remain unchanged in other periods can be deduced.

[0471] The period is 20ms, and the repetition period is 80ms: the second least significant bit (2nd LSB) and the third least significant bit (3rd LSB) are changing;

[0472] The period is 40ms, and the repetition period is 80ms or 160ms: the third least significant bit (3rd LSB) and the fourth least significant bit (4th LSB) are changing;

[0473] The period is 80ms, and the repetition period is 160ms: the 4th LSB is changing;

[0474] The period is 160m: the fifth least significant bit (5th LSB) is changing.

[0475] In one example, the sequence length K of the first bit sequence and the sequence length E of the second bit sequence are explained.

[0476] In one implementation, the first bit sequence of length K includes K1 information bits and K2 CRC bits; where K1 and K2 are positive integers.

[0477] The value of K1 ranges from [30, 60]. For example, K1 can be 56 or 48.

[0478] The value range of E includes [200,300], [450,600], [600,700], [700,800], or [800,900].

[0479] In some embodiments, the value of K ranges from [60, 90]. For example, K2 is 62 or 72.

[0480] For example, E is 214 or 256. For example, E is 478 or 546. For example, E is 612 or 656. For example, E is a multiple of 12. For example, E is 720 or 744, and for example, E is 812 or 888.

[0481] In one implementation, the location of the information bit mapping is explained.

[0482] In this embodiment, encoding the first bit sequence includes: selecting a mother code length based on the length of the first bit sequence and / or the length of the sequence after rate matching and / or the code rate; determining a data candidate index set based on the mother code length and channel reliability; mapping the first bit sequence and parity bits to the data candidate index set; mapping other index positions to frozen bits or predefined sequences; and then encoding. Each index corresponds to a channel reliability. In polar code encoding, placing data in high-reliability index positions can improve encoding performance.

[0483] The position of the information bit mapping is the index before encoding.

[0484] In a specific example, the first type of information bits corresponds to / maps to the first index set;

[0485] The first type of information bits includes at least one of the following: a first time domain indicator, a second time domain indicator, an index indicator, an update indicator, an indicator of access support status, and an indicator of access support status for a first type of terminal.

[0486] The first set of indexes is: indexes in the candidate index set whose indexes are less than M, where M = 128,512.

[0487] Optionally, the first set of indices includes at least one of the following:

[0488] 111,119,123,125,126,127;

[0489] 246,249,250,252,223,239,251,247,253,254,255;

[0490] 495,503,507,509,510,511.

[0491] In this embodiment, the first index set consists of the bits at the beginning of the encoded position. Therefore, the bits can be decoded first after decoding, and the UE can obtain relevant information earlier. Based on the decoded relevant information, the UE can determine whether to continue decoding subsequent bits.

[0492] In a specific example, the second type of information bits are mapped to / assigned to the second index set;

[0493] The second type of information bits includes at least one of the following: a first time domain indicator, a second time domain indicator, an index indicator, an update indicator, an indicator of access support status, and an indicator of access support status for a first type of terminal.

[0494] The second index set consists of: the index set with the lowest reliability in the data candidate index set; and the index set with the lowest reliability in the data candidate index set other than the first index set.

[0495] Optionally, the second set of indices includes at least one of the following: 157 110 117 212 171 226 216 158 118 173 121 199 179 228 174 122 203 63 181 232 124 205 182 211 185 240 206 95 213 186 227 111 214 188 217 229 159 119 218 230 233 175 123 220 183 234 125 241 207 187; 427 414 223 472 455 377 435 319 484 430 488 239 378 459 437 380 461 496 351 467 438 251 462 442 441 469 247 367 253 375 444 470 483 415 485 473 474 254 379 431 489 486 476 439 490 463 381 497 492 443; 831 947 507 889 984 751 942 996 971 890 509 949 973 1000 892 950 863 759 1008 510 979 953 763 974 954 879 981 982 927 995 765 956 887 985 997 986 943 891 998 766 511 988 1001 951 1002 893 975 894 1009 955;

[0504] In this embodiment, the set of indexes with lower reliability is used in the data candidate index set. This is because the second type of information bits do not change frequently, or the changes are regular. Therefore, after receiving a transmission, these bits can be treated as known bits in the decoding of subsequent transmissions, and placing them in positions with lower reliability will not affect the decoding performance. Furthermore, other bits can be placed in positions with higher reliability to improve decoding performance.

[0505] In a specific example, the third type of information bits are mapped to / assigned to the third index set;

[0506] The third type of information bits includes at least one of the following: a first time domain indicator, a second time domain indicator, an index indicator, an update indicator, an indicator of access support status, and an indicator of access support status for a first type of terminal.

[0507] The index indication includes at least one of the following: synchronization signal index information / channel index information; Transmitter Receiver Point (TRP) index; SSB index.

[0508] Optionally, the third index set is the set of the smallest index values ​​in the partial data candidate index set:

[0509] Optionally, the third set of indices can be one of the following: 63 95 110 111 117 118 119 121 122 123 124 125 157 158 159 171 173 174 175 179 181 182 183 185 186 187 188 199 203 205 206 207 211 212 213 214 216 217 218 220 226 227 228 229 230 232 233 234 240 241; 223 239 247 251 253 254 319 351 367 375 377 378 379 380 381 414 415 427 430 431 435 437 438 439 441 442 443 444 455 459 461 462 463 467 469 470 472 473 474 476 483 484 485 486 488 489 490 492 496 497; 507 509 510 511 751 759 763 765 766 831 863 879 887 889 890 891 892 893 894 927 942 943 947 949 950 951 953 954 955 956 971 973 974 975 979 981 982 984 985 986 988

[0518] 995 996 997 998 1000 1001 1002 1008 1009.

[0519] Similar to the second set of indexes, the smallest index position in the data candidate index set is also the position with lower reliability.

[0520] It should be noted that the number of bits used in the first index set is determined based on the number of bits in the first type of information. The number of bits used in the second index set is determined based on the number of bits in the second type of information. The number of bits used in the third index set is determined based on the number of bits in the third type of information.

[0521] The first bit sequence includes one or more of the following: first type of information bits, second type of information bits, and third type of information bits.

[0522] Optionally, the first bit sequence includes a first type of information bits, which are mapped sequentially according to a first index set. For example, if the first type of information bits includes 3 bits, then the first type of information bits are mapped to the first 3 indices in the first index set.

[0523] Optionally, the first bit sequence includes second-type information bits, which are mapped sequentially according to a second index set. For example, if the second-type information bits consist of 13 bits, then the second-type information bits are mapped to the first 13 indices in the second index set.

[0524] Optionally, the first bit sequence includes third-class information bits, which are mapped sequentially according to a third index set. For example, if the third-class information bits consist of 6 bits, then the third-class information bits are mapped to the first 6 indices in the third index set.

[0525] Optionally, the first bit sequence includes a first type of information bits and a second type of information bits. The first type of information bits are mapped sequentially according to a first index set. The second type of information bits are mapped sequentially according to a second index set. For example, if the first type of information bits includes 4 bits, then the first type of information bits are mapped to the first 4 indices in the first index set. If the second type of information bits includes 10 bits, then the second type of information bits are mapped to the first 10 indices in the second index set.

[0526] Optionally, the first bit sequence includes a first type of information bits and a third type of information bits. The first type of information bits are mapped sequentially according to a first index set. The third type of information bits are mapped sequentially according to a third index set. For example, if the first type of information bits includes 4 bits, then the first type of information bits are mapped to the first 4 indices in the first index set. If the third type of information bits includes 12 bits, then the third type of information bits are mapped to the first 12 indices in the third index set.

[0527] Optionally, the first bit sequence includes second-type information bits and third-type information bits. The third-type information bits are mapped sequentially according to a third index set. The second-type information bits are mapped sequentially according to a second index set. For example, if the third-type information bits include 4 bits, then the first-type information bits are mapped to the first 4 indices in the third index set. If the second-type information bits include 15 bits, then the second-type information bits are mapped to the first 15 indices in the second index set.

[0528] Optionally, the first bit sequence includes a first type of information bits, a second type of information bits, and a third type of information bits. The first type of information bits are mapped sequentially according to a first index set. The second type of information bits are mapped sequentially according to a second index set. The third type of information bits are mapped sequentially according to a third index set. For example, if the first type of information bits includes 5 bits, then the first type of information bits are mapped to the first 5 indices in the first index set. If the second type of information bits includes 10 bits, then the second type of information bits are mapped to the first 10 indices in the second index set. If the third type of information bits includes 4 bits, then the first type of information bits are mapped to the first 4 indices in the third index set.

[0529] In some embodiments, the corresponding information bits in the first bit sequence are mapped to an index set from high to low reliability in the subsequent data index set according to the priority of the information in the first bit sequence.

[0530] For example, the information in the first bit sequence is divided into 4 priorities. The N1 bits of the first priority (highest priority) are mapped to the N1 index set with the highest reliability. The N2 bits of the second priority (second highest priority) are mapped to the N2 index set with the highest reliability other than the N1 index set with the highest reliability, and so on.

[0531] In some embodiments, the highest priority information is first type information, which includes at least one of the following: a first time domain indication, a second time domain indication, an index indication, and a time-frequency domain information indication.

[0532] In some embodiments, the second type of information has a lower priority than the first type of information. The second type of information includes at least one of the following: an indication of access support status, an indication of the first type of terminal access support status, synchronization signal / channel index information (e.g., SSB index, PSS / SSS / PBCH index), TRP index, PRACH resource indication information, beam information indication, and PSS / SSS / PBCH / SSB pattern indication.

[0533] In some embodiments, the third type of information has a lower priority than the second type of information, and the third type of information includes at least one of the following: WUS-related information, SIB1-related information.

[0534] In some embodiments, the first type of information and / or the second type of information and / or the third type of information are first mapped to a predefined set of indexes (e.g., a first set of indexes, a second set of indexes, and a third set of indexes). Then, according to the priority of other information in the first bit sequence, the corresponding information bits are mapped to an index set from high reliability to low reliability in descending order of priority.

[0535] In some embodiments, the first type of information and / or the second type of information and / or the third type of information are first mapped to a predefined set of indexes (e.g., a first set of indexes, a second set of indexes, and a third set of indexes). Then, according to the order of other information in the first bit sequence, the corresponding information bits are mapped to an index set from high to low reliability, other than the predefined set of indexes, in order of priority from high to low.

[0536] In one specific embodiment, the transmission method of the physical broadcast channel is described in detail:

[0537] The transmitting end sends a physical broadcast channel within a first time window. There are N transmission opportunities within the first time window, and these transmission opportunities are related to the third information. The third information consists of the previous c bits (c bits are carried in a predefined manner). Where N is a positive integer.

[0538] The third piece of information is at least one of the following: DMRS sequence, redundant version, time-frequency domain offset of DMRS / PBCH, scrambling sequence, sequence initialization value, process of selecting bits from the encoded bit sequence to obtain the second bit sequence: starting position, bit sequence length, bit index.

[0539] For DMRS sequences: for example, the nth transmission timing corresponds to the mth DMRS sequence;

[0540] For redundant versions: for example, the nth transmission timing corresponds to the mth redundant version;

[0541] Optionally, the order of redundant versions (RV versions) is predefined.

[0542] The optional redundant versions are ordered from smallest to largest.

[0543] For the time-frequency domain offset of DMRS / PBCH: for example, the time-frequency domain offset of the mth DMRS / PBCH corresponds to the nth transmission timing;

[0544] For scrambling sequences: for example, the nth transmission timing corresponds to the mth scrambling sequence;

[0545] For sequence initialization values: for example, the nth transmission timing corresponds to the mth sequence initialization value;

[0546] The process of selecting bits from the encoded bit sequence to obtain the second bit sequence includes: starting position, bit sequence length, and bit index; for example, the nth transmission timing corresponds to the mth starting position, bit sequence length, or set of bit indices.

[0547] Optionally, the nth transmission timing corresponding to the mth third information includes: the nth transmission timing corresponding to the mod(n, M)th third information if mod(n, M) is not 0; and the nth transmission timing corresponding to the Mth third information if mod(n, M) equals 0. Mod(A, B) represents the remainder when A is divided by B. For example, mod(8, 4) = 0, mod(8, 5) = 1. M is the total number of third information items corresponding to each transmission timing. For example, M is the number of DMRS sequences.

[0548] Optionally, the order of the M third pieces of information is predefined.

[0549] Different DMRS sequences, redundant versions, DMRS / PBCH time-frequency domain offsets, scrambling sequences, sequence initialization values, or the process of selecting bits from the encoded bit sequence to obtain the second bit sequence have different starting positions, bit sequence lengths, or bit indices. These correspond to different bit indications for the third information. For example, the third information includes 4 bits, and the different DMRS sequences, redundant versions, DMRS / PBCH time-frequency domain offsets, scrambling sequences, sequence initialization values, or the process of selecting bits from the encoded bit sequence to obtain the second bit sequence have starting positions, bit sequence lengths, or bit indices corresponding to '00', '01', '10', and '11', respectively.

[0550] The process of obtaining a second bit sequence based on the detected DMRS sequence, redundant version, time-frequency domain offset of DMRS / PBCH, scrambling sequence, sequence initialization value, or by selecting bits from the encoded bit sequence: determining the third information based on the starting position, bit sequence length, or bit index.

[0551] The first and second time-domain information carried by the physical broadcast channel within the first time window are different; alternatively, the first and second time-domain information carried by the physical broadcast channel within the first time window are different, while other information is the same.

[0552] In one specific embodiment, the implementation process of the receiving end is described in detail.

[0553] The implementation of the receiving end includes the following steps:

[0554] Step 1: Receive synchronization signal;

[0555] Step 2, receive the physical broadcast channel;

[0556] Step 3: Obtain the first set of bit sequences.

[0557] The synchronization signal includes one of the following: a first synchronization signal or a second synchronization signal.

[0558] The first bit sequence set includes at least one of the following: cell ID, SFN frame number, and MIB.

[0559] The first synchronization signal occupies a1 symbols in the time domain and b1 subcarriers in the frequency domain.

[0560] The second synchronization signal occupies a2 symbols in the time domain and b2 subcarriers in the frequency domain;

[0561] The physical broadcast channel occupies a3 symbols, and the frequency domain occupies b3 subcarriers.

[0562] Where a1, a2, a3, b1, b2, b3 are all positive integers.

[0563] The period and time-frequency domain characteristics of the first synchronization signal / second synchronization signal:

[0564] For example, the number of subcarriers b1 occupied by the first synchronization signal is greater than or equal to 127 and less than or equal to 191; for example, the value of b1 can be 131, 151, 144, 166, 158, 190, 188, 153, 137, 138, 139, or 176.

[0565] For example, the number of subcarriers b2 occupied by the second synchronization signal is greater than or equal to 127 and less than or equal to 191; for example, the value of b1 can be 131, 151, 144, 166, 158, 190, 188, 153, 137, 138, 139, or 176.

[0566] For example, the number of subcarriers b3 occupied by the physical broadcast channel is greater than or equal to 127 and less than or equal to 191; for example, the value of b3 can be 131, 151, 144, 166, 158, 190, 188, 153, 137, 138, 139, or 176.

[0567] In some embodiments, b1 and / or b2 are 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, or 199. These sequences have good synchronization performance, making it easier for terminals to synchronize.

[0568] In some embodiments, b1 and / or b2 are odd numbers greater than or equal to 124 and less than or equal to 200. Odd-numbered long sequences have better autocorrelation performance.

[0569] Optionally, b3 can be the same as b1 and b2, occupying the same bandwidth to improve resource utilization.

[0570] For example, a1 can be 1, 2, 3, or 4. a3 can be 1, 2, 3, 4, or 5.

[0571] For example, b1 is a positive integer between [124, 500], such as b1 = 127, 192, 168, or 240.

[0572] For example, b2 is a positive integer between [124, 500], such as b2 = 127, 192, 168, or 240.

[0573] For example, b3 is a positive integer between [124, 500], such as b3 = 127, 192, 168, or 240.

[0574] For example, b1 = b2 = b3 = 144. For example, b1 = b2 = b3 = 124. For example, b1 = b2 = b3 = 192. For example, b1 = b2 = 144, b3 = 192.

[0575] For example, a1 = a2 = 1, a3 = 2. For example, a1 = a2 = 2, a3 = 4. For example, a1 = a2 = 4, a3 = 4. For example, a1 = a2 = 1, a3 = 1. For example, a1 = a2 = 1, a3 = 2. For example, a1 = 1, a2 = 2, a3 = 2. For example, a1 = 3, a2 = 3, a3 = 3.

[0576] It should be noted that the first synchronization signal, the first synchronization signal, and the physical broadcast channel may occupy the same symbol. For example, symbol 1 includes the first synchronization signal and the physical broadcast channel, or symbol 2 includes the second synchronization signal and the physical broadcast channel.

[0577] For example, the first synchronization signal occupies 2 symbols in the time domain and 192 subcarriers / RE in the frequency domain. Alternatively, the first synchronization signal occupies 1 symbol in the time domain and 240 subcarriers / RE in the frequency domain. Or, the first synchronization signal occupies 2 symbols in the time domain and 240 subcarriers / RE in the frequency domain.

[0578] In one implementation, the design of the first synchronization signal, the second synchronization signal, and the PBCH is described:

[0579] In some embodiments, the resource location of the first synchronization signal is fixed. For example, it is fixed to start from the Yth symbol in the Xth time slot of a frame. Upon receiving the first synchronization signal, the terminal can determine its current location within a frame.

[0580] For example, the resource location of the first synchronization signal begins with the first symbol in the first time slot within a frame. The period is an integer number of frames.

[0581] The first synchronization signal can be transmitted multiple times within one cycle, which is called a burst. The resource location mentioned above refers to the resource location of the first transmission within a burst.

[0582] Figure 7 This is a schematic diagram illustrating the configuration of a period and a first synchronization signal according to an embodiment of this application. Figure 7 As shown, the first synchronization signal starts with the first symbol in the first time slot within a frame, and is transmitted three times within one cycle / burst.

[0583] The offset between the starting position of the second synchronization signal and the starting position of the first synchronization signal is the first offset, which is predefined or signaled.

[0584] The offset between the PBCH start position and the first synchronization signal start position is the second offset, which is predefined or signaled.

[0585] In some embodiments, the first offset is 0. In some embodiments, the second offset is 0.

[0586] In some embodiments, the period of the first synchronization signal is less than or equal to the period of the second synchronization signal.

[0587] In some embodiments, the period of the second synchronization signal is less than or equal to the period of PBCH.

[0588] In some embodiments, the starting position of the first type of configuration is determined based on the starting position of the first synchronization signal. The first type of configuration includes at least one of the following: DRX configuration, configured grant CG configuration, and semi-persistent scheduling (SPS) configuration.

[0589] In some embodiments, the first synchronization signal is PSS and the second synchronization signal is SSS.

[0590] In some embodiments, PBCH includes a first type of PBCH and a second type of PBCH.

[0591] In some embodiments, the information carried by the first type of PBCH and the second type of PBCH is different.

[0592] In some embodiments, the time-frequency positions of the first type of PBCH and the second type of PBCH are different.

[0593] In some embodiments, the number of subcarriers occupied by the first type of PBCH and the second type of PBCH are different.

[0594] In some embodiments, the number of symbols occupied by the first type of PBCH and the second type of PBCH is different.

[0595] In some embodiments, the patterns of the first type of PBCH and the second type of PBCH are different.

[0596] In some embodiments, the first type of PBCH and the second type of PBCH have different offsets from the first synchronization signal and / or the second synchronization signal.

[0597] In some embodiments, the offset of the first type of PBCH from the first synchronization signal and / or the second synchronization signal is 0, and the offset of the second type of PBCH from the first synchronization signal and / or the second synchronization signal is not 0 (it can be infinite, i.e., there is no transmission of the first synchronization signal and / or the second synchronization signal).

[0598] In some embodiments, the type of PBCH is determined based on the offset value between the PBCH and the first synchronization signal and / or the second synchronization signal.

[0599] In some embodiments, only one type of PBCH can be transmitted on each carrier.

[0600] In some embodiments, two types of PBCHs can be transmitted on each carrier.

[0601] In some embodiments, a second type of PBCH is transmitted over an energy-efficient cell (a second cell, or a capacity cell). In some embodiments, a first type of PBCH is transmitted over a first cell (a non-energy-efficient cell, or a coverage cell).

[0602] In some embodiments, the PBCH occupies multiple OFDM symbols, and the DMRS time domains on different OFDM symbols are different (they are staggered in the time domain).

[0603] In one embodiment, Figure 8 This is a structural block diagram of a sequence transmission device provided in an embodiment of this application. This embodiment is applied to the transmitting end. Figure 8 As shown, the sequence transmission device in this embodiment includes: an encoding module 810, a matching module 820, and a sending module 830.

[0604] The encoding module 810 is configured to encode the first bit sequence to obtain the encoded bit sequence;

[0605] The matching module 820 is configured to perform rate matching on the encoded bit sequence to obtain a second bit sequence;

[0606] The transmitting module 830 is configured to transmit the second bit sequence to the receiving end via a physical broadcast channel.

[0607] In one embodiment, the first bit sequence includes at least one of the following:

[0608] First time-domain indication, used to indicate SFN; time-frequency domain information indication; first type of terminal access support status; subcarrier spacing; DMRS configuration parameters; access support status indication; same-frequency reselection indication information; synchronization signal index information / channel index information; TRP index; second time-domain indication; wake-up signal indication; SIB1 related indication; update indication; MIMO related configuration parameters.

[0609] In one embodiment, the sequence transmission apparatus applied to the transmitting end further includes:

[0610] The generation module is configured to generate a scrambling sequence based on the first information;

[0611] The scrambling module is configured to scramble the first bit sequence according to the scrambling code sequence; and / or,

[0612] The generation module is also configured to generate a scrambling sequence based on the second information;

[0613] The scrambling module is further configured to scramble the second bit sequence according to the scrambling code sequence;

[0614] Wherein, the first information and / or the second information each include at least one of the following: a first time domain indication; a portion of the bits in the first time domain indication; a second time domain indication; a portion of the bits in the second time domain indication; an SSB index; synchronization signal index information / channel index information; a portion of the bits in the synchronization signal index information / channel index information; an update indication; and a TRP index.

[0615] In one embodiment, the time-frequency domain information indication includes at least one of the following: a first time-frequency domain information indication; a second time-frequency domain information indication; wherein the first time-frequency domain information indication is used to indicate the time-frequency domain information indication of a second type of terminal; and the second time-frequency domain information indication is used to indicate the time-frequency domain information indication of a first type of terminal.

[0616] In one embodiment, the first time-frequency domain information indication includes first time-domain information and first frequency-domain information;

[0617] The second time-frequency domain information indication includes second frequency domain information;

[0618] Among them, the bandwidth / occupied RB / occupied RE indicated by the first frequency domain information is greater than the bandwidth / occupied RB / occupied RE indicated by the second frequency domain information, and the time domain information of the first type of terminal is the same as that of the second type of terminal.

[0619] In one embodiment, the first time-frequency domain information indication includes time-domain resource information and frequency-domain resource information;

[0620] The second time-frequency domain information indicates whether the second frequency domain resource information is enabled. If the indication is enabled, the second frequency domain resource information is determined according to the frequency domain resource information indicated by the first time-frequency domain information and the predefined rules.

[0621] In one embodiment, the first type of terminal includes one of the following:

[0622] A terminal with a bandwidth of the first preset bandwidth;

[0623] Low-power wide-area (LPWA) type terminals.

[0624] In one embodiment, in response to the first bit sequence including at least one of the following, the first bit sequence includes at least a subcarrier spacing: a carrier aggregation indication in an idle or inactive state; more than one carrier indication information; secondary cell / secondary cell / secondary carrier indication information.

[0625] In one embodiment, the bearer signal of the TRP index further includes one of the following: PSS; SSS.

[0626] In one embodiment, the second time-domain indicator is used to indicate the number of transmission intervals at one of the following granularities: 1ms; 2ms; 2.5ms; 3ms.

[0627] In one embodiment, the relevant indication of SIB1 is used to indicate at least one of the following: SIB1 does not exist and initial access cannot be performed; SIB1 does not exist and initial access is permitted; SIB1 exists.

[0628] In one embodiment, the update indication is located in one of the following: the first X bits of a first bit sequence; the first X bits of a second bit sequence; the first X bits of a encoded bit sequence; or carried in a PSS or SSS.

[0629] In one embodiment, the relevant configuration parameters of MIMO include one of the following: number of antennas; precoding matrix.

[0630] In one embodiment, a portion of the bits in the first bit sequence is carried by the main information block (MIB), and another portion of the bits is carried by the L1 layer.

[0631] The information carried by the L1 layer includes at least one of the following: at least some bits in the first time domain indicator; the second time domain indicator; the update indicator; and the synchronization signal index information / channel index information.

[0632] In one embodiment, some bits in the first bit sequence are carried by the MIB, another part are carried by the L1 layer, and yet another part are carried in a predefined manner;

[0633] The information carried by the L1 layer or in a predefined manner includes at least one of the following: at least some bits in the first time domain indicator; the second time domain indicator; synchronization signal index information / channel index information; and update indicator.

[0634] In one embodiment, at least a portion of the bits in the first time-domain indication include one of the following:

[0635] When the transmission period of SSB or PBCH is 20ms, the second least significant bit and / or the third least significant bit of SFN;

[0636] When the transmission period of SSB or PBCH is 40ms, the third least significant bit and / or the fourth least significant bit of SFN;

[0637] When the transmission period of SSB or PBCH is 80ms, the fourth least significant bit of SFN;

[0638] The fifth least significant bit of SFN when the transmission period of SSB or PBCH is 160ms.

[0639] In one embodiment, the first bit sequence includes: a first type of information bits;

[0640] The first type of information bits are mapped to the first index set; the first index set includes indices in the data candidate index set whose indices are less than M.

[0641] In one embodiment, the first index set includes at least one of the following:

[0642] 111,119,123,125,126,127;

[0643] 246,249,250,252,223,239,251,247,253,254,255;

[0644] 495,503,507,509,510,511.

[0645] In one embodiment, the first bit sequence includes: a second type of information bits;

[0646] Among them, the second type of information bits are mapped to the second index set;

[0647] The second index set includes at least one of the following: the index set with the lowest reliability in the data candidate index set; or the index set with the lowest reliability in the data candidate index set other than the first index set.

[0648] In one embodiment, the first bit sequence includes: a second type of information bits;

[0649] Among them, the second type of information bits are mapped to the second index set;

[0650] The second set of indexes includes at least one of the following: 157 110 117 212 171 226 216 158 118 173 121 199 179 228 174 122 203 63 181 232 124 205 182 211 185 240 206 95 213 186 227 111 214 188 217 229 159 119 218 230 233 175 123 220 183 234 125 241 207 187; 427 414 223 472 455 377 435 319 484 430 488 239 378 459 437 380 461 496 351 467 438 251 462 442 441 469 247 367 253 375 444 470 483 415 485 473 474 254 379 431 489 486 476 439 490 463 381 497 492 443; 831 947 507 889 984 751 942 996 971 890 509 949 973 1000 892 950 863 759 1008 510 979 953 763 974 954 879 981 982 927 995 765 956 887 985 997 986 943 891 998 766 511

[0658] 988 1001 951 1002 893 975 894 1009 955.

[0659] In one embodiment, the first bit sequence includes: third type of information bits;

[0660] The third type of information bits are mapped to the third index set; the index position in the third index set is the position with the lowest reliability in the data candidate index set.

[0661] In one embodiment, the first bit sequence includes: third type of information bits;

[0662] The third type of information bits are mapped to a third index set; the third index set includes at least one of the following: 63 95 110 111 117 118 119 121 122 123 124 125 157 158 159 171 173 174 175 179 181 182 183 185 186 187 188 199 203 205 206 207 211 212 213 214 216 217 218 220 226 227 228 229 230 232 233 234 240 241; 239 247 251 253 254 319 351 367 375 377 378 379 380 381 414 415 427 430 431 435 437 438 439 441 442 443 444 455 459 461 462 463 467 469 470 472 473 474 476 483 484 485 486 488 489 490 492 496 497; 507 509 510 511 751 759 763 765 766 831 863 879 887 889 890 891 892 893 894 927 942 943 947 949 950 951 953 954 955 956 971 973 974 975 979 981 982 984 985 986 988

[0671] 995 996 997 998 1000 1001 1002 1008 1009.

[0672] In one embodiment, the first bit sequence is encoded, specifically configured as follows:

[0673] The mother code length is selected based on the length of the first bit sequence and / or the sequence length and / or code rate after rate matching;

[0674] The candidate index set for data is determined based on the mother code length and channel reliability.

[0675] The first bit sequence and the check bit are mapped to the data candidate index set, and the other index positions are mapped to the frozen bits or predefined sequences for encoding.

[0676] The sequence transmission device provided in this embodiment is configured to achieve... Figure 3 The sequence transmission method applied to the sending end in the illustrated embodiment is similar in principle and technical effect to the sequence transmission device provided in this embodiment, and will not be described again here.

[0677] In one embodiment, Figure 9 This is a structural block diagram of another sequence transmission device provided in an embodiment of this application. This embodiment is applied to the receiving end. Figure 9 As shown, the sequence transmission device in this embodiment includes: a receiving module 910, a dematching module 920, and a decoding module 930.

[0678] The receiving module 910 is configured to receive a second bit sequence transmitted through a physical broadcast channel;

[0679] The dematching module 920 is configured to perform rate dematching on the second bit sequence to obtain the encoded bit sequence;

[0680] The decoding module 930 is configured to decode the encoded bit sequence to obtain the first bit sequence.

[0681] In one embodiment, the first bit sequence includes at least one of the following: a first time-domain indication for indicating SFN; a time-frequency domain information indication; a first type of terminal access support status; a subcarrier spacing; DMRS configuration parameters; an indication of access support status; a same-frequency reselection indication; a synchronization signal index / channel index; a TRP index; a second time-domain indication; a wake-up signal indication; a SIB1 related indication; an update indication; and MIMO related configuration parameters.

[0682] In one embodiment, the sequence transmission device applied to the receiving end further includes:

[0683] The generation module is configured to generate a scrambling sequence based on the candidate set of the first information;

[0684] The descrambling module is configured to descramble the first bit sequence according to the scrambling code sequence; and / or,

[0685] The generation module is also configured to generate a scrambling sequence based on the candidate set of the second information;

[0686] The descrambling module is further configured to descramble the second bit sequence according to the scrambling code sequence;

[0687] The first information and / or the second information each include at least one of the following: a first time domain indication; a portion of the bits in the first time domain indication; a second time domain indication; a portion of the bits in the second time domain indication; an SSB index; synchronization signal index information / channel index information; a portion of the bits in the synchronization signal index information / channel index information; an update indication; and a transmission receiver point (TRP) index.

[0688] In one embodiment, the time-frequency domain information indication includes at least one of the following: a first time-frequency domain information indication; a second time-frequency domain information indication;

[0689] Among them, the first time-frequency domain information indication is used to indicate the time-frequency domain information indication of the second type of terminal;

[0690] The second time-frequency domain information indicator is used to indicate the time-frequency domain information of the first type of terminal.

[0691] In one embodiment, the first time-frequency domain information indication includes first time-domain information and first frequency-domain information;

[0692] The second time-frequency domain information indication includes second frequency domain information;

[0693] Among them, the bandwidth / occupied RB / occupied RE indicated by the first frequency domain information is greater than the bandwidth / occupied RB / occupied RE indicated by the second frequency domain information, and the time domain information of the first type of terminal is the same as that of the second type of terminal.

[0694] In one embodiment, the first time-frequency domain information indication includes time-domain resource information and frequency-domain resource information;

[0695] The second time-frequency domain information indicates whether the second frequency domain resource information is enabled. If the indication is enabled, the second frequency domain resource information is determined according to the frequency domain resource information indicated by the first time-frequency domain information and the predefined rules.

[0696] In one embodiment, the first type of terminal includes one of the following: a terminal with a bandwidth of a first preset bandwidth; or a low-power wide-area (LPWA) type terminal.

[0697] In one embodiment, in response to the first bit sequence including at least one of the following, the first bit sequence includes at least a subcarrier spacing: a carrier aggregation indication in an idle or inactive state; more than one carrier indication information; secondary cell / secondary cell / secondary carrier indication information.

[0698] In one embodiment, the bearer signal of the TRP index further includes one of the following: PSS; SSS.

[0699] In one embodiment, the second time-domain indicator is used to indicate the number of transmission intervals at one of the following granularities: 1ms; 2ms; 2.5ms; 3ms.

[0700] In one embodiment, the relevant indication of SIB1 is used to indicate at least one of the following: SIB1 does not exist and initial access cannot be performed; SIB1 does not exist and initial access is permitted; SIB1 exists.

[0701] In one embodiment, the update indication is located in one of the following: the first X bits of a first bit sequence; the first X bits of a second bit sequence; the first X bits of a encoded bit sequence; or carried in a PSS or SSS.

[0702] In one embodiment, the relevant configuration parameters of MIMO include one of the following: number of antennas; precoding matrix.

[0703] In one embodiment, a portion of the bits in the first bit sequence is carried by the main information block (MIB), and another portion of the bits is carried by the L1 layer.

[0704] The information carried by the L1 layer includes at least one of the following: at least some bits in the first time domain indicator; the second time domain indicator; the update indicator; and the synchronization signal index information / channel index information.

[0705] In one embodiment, some bits in the first bit sequence are carried by the MIB, another part are carried by the L1 layer, and yet another part are carried in a predefined manner;

[0706] The information carried by the L1 layer or in a predefined manner includes at least one of the following: at least some bits in the first time domain indicator; the second time domain indicator; synchronization signal index information / channel index information; and update indicator.

[0707] In one embodiment, at least a portion of the bits in the first time-domain indication include one of the following:

[0708] When the transmission period of SSB or PBCH is 20ms, the second least significant bit and / or the third least significant bit of SFN;

[0709] When the transmission period of SSB or PBCH is 40ms, the third least significant bit and / or the fourth least significant bit of SFN;

[0710] When the transmission period of SSB or PBCH is 80ms, the fourth least significant bit of SFN;

[0711] The fifth least significant bit of SFN when the transmission period of SSB or PBCH is 160ms.

[0712] In one embodiment, the first bit sequence includes: a first type of information bits;

[0713] The first type of information bits are mapped to the first index set; the first index set includes indices in the data candidate index set whose indices are less than M.

[0714] In one embodiment, the first index set includes at least one of the following:

[0715] 111,119,123,125,126,127;

[0716] 246,249,250,252,223,239,251,247,253,254,255;

[0717] 495,503,507,509,510,511.

[0718] In one embodiment, the first bit sequence includes: a second type of information bits;

[0719] Among them, the second type of information bits are mapped to the second index set;

[0720] The second set of indexes includes at least one of the following:

[0721] The set of indexes with the lowest reliability in the candidate index set;

[0722] The set of indexes with the lowest reliability in the candidate index set, excluding the first set of indexes.

[0723] In one embodiment, the first bit sequence includes: a second type of information bits;

[0724] Among them, the second type of information bits are mapped to the second index set;

[0725] The second set of indexes includes at least one of the following: 157 110 117 212 171 226 216 158 118 173 121 199 179 228 174 122 203 63 181 232 124 205 182 211 185 240 206 95 213 186 227 111 214 188 217 229 159 119 218 230 233 175 123 220 183 234 125 241 207 187; 427 414 223 472 455 377 435 319 484 430 488 239 378 459 437 380 461 496 351 467 438 251 462 442 441 469 247 367 253 375 444 470 483 415 485 473 474 254 379 431 489 486 476 439 490 463 381 497 492 443; 831 947 507 889 984 751 942 996 971 890 509 949 973 1000 892 950 863 759 1008 510 979 953 763 974 954 879 981 982 927 995 765 956 887 985 997 986 943 891 998 766 511

[0733] 988 1001 951 1002 893 975 894 1009 955.

[0734] In one embodiment, the first bit sequence includes: third type of information bits;

[0735] The third type of information bits are mapped to the third index set; the index position in the third index set is the position with the lowest reliability in the data candidate index set.

[0736] In one embodiment, the first bit sequence includes: third type of information bits;

[0737] The third type of information bits are mapped to a third index set; the third index set includes at least one of the following: 63 95 110 111 117 118 119 121 122 123 124 125 157 158 159 171 173 174 175 179 181 182 183 185 186 187 188 199 203 205 206 207 211 212 213 214 216 217 218 220 226 227 228 229 230 232 233 234 240 241; 239 247 251 253 254 319 351 367 375 377 378 379 380 381 414 415 427 430 431 435 437 438 439 441 442 443 444 455 459 461 462 463 467 469 470 472 473 474 476 483 484 485 486 488 489 490 492 496 497; 507 509 510 511 751 759 763 765 766 831 863 879 887 889 890 891 892 893 894 927 942 943 947 949 950 951 953 954 955 956 971 973 974 975 979 981 982 984 985 986 988

[0746] 995 996 997 998 1000 1001 1002 1008 1009.

[0747] In one embodiment, decoding the encoded bit sequence is specifically configured as follows: selecting the mother code length based on the length of the first bit sequence and / or the sequence length and / or the code rate after matching the rate; determining the data candidate index set based on the mother code length and the channel reliability, and then performing decoding.

[0748] The sequence transmission device provided in this embodiment is configured to achieve... Figure 4 The sequence transmission method applied to the receiving end in the illustrated embodiment is similar in principle and technical effect to the sequence transmission device provided in this embodiment, and will not be described again here.

[0749] In one embodiment, Figure 10 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Figure 10 As shown, the device provided in this application includes: a processor 1010, a memory 1020, and a communication module 1030. The device may contain one or more processors 1010. Figure 10 Taking a processor 1010 as an example, the number of memory units 1020 in this device can be one or more. Figure 10 Taking a memory 1020 as an example, the processor 1010, memory 1020, and communication module 1030 of this device can be connected via a bus or other means. Figure 10 Taking a bus connection as an example, in this embodiment, the device can be either a transmitter or a receiver.

[0750] The memory 1020, 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 device in any embodiment of this application (e.g., encoding module 810, matching module 820, and transmitting module 830 applied to a serial transmission device at the transmitting end). The memory 1020 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required for at least one function; the data storage area may store data created according to the use of the device, etc. Furthermore, the memory 1020 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 1020 may further include memory remotely located relative to the processor 1010, and these remote memories can be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0751] When the communication device is the transmitting end, the device provided above can be configured to execute the sequence transmission method applied to the transmitting end provided in any of the above embodiments, and has the corresponding functions and effects.

[0752] When the communication device is the receiving end, the device provided above can be configured to execute the sequence transmission method for the receiving end provided in any of the above embodiments, and has the corresponding functions and effects.

[0753] This application also provides a storage medium containing computer-executable instructions. When executed by a computer processor, the computer-executable instructions are used to perform a sequence transmission method applied to a transmitting end. The method includes: encoding a first bit sequence to obtain an encoded bit sequence; performing rate matching on the encoded bit sequence to obtain a second bit sequence; and transmitting the second bit sequence to a receiving end through a physical broadcast channel.

[0754] This application also provides a storage medium containing computer-executable instructions. When executed by a computer processor, the computer-executable instructions are used to perform a sequence transmission method applied to a receiving end. The method includes: receiving a second bit sequence transmitted through a physical broadcast channel; performing rate dematching on the second bit sequence to obtain an encoded bit sequence; and decoding the encoded bit sequence to obtain a first bit sequence.

[0755] Those skilled in the art will understand that the term user equipment covers any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.

[0756] 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.

[0757] 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.

[0758] 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 on memory. 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.

[0759] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sequence transmission method, characterized in that, Applied to the sending end, the method includes: Encode the first bit sequence to obtain the encoded bit sequence; Rate matching is performed on the encoded bit sequence to obtain a second bit sequence; The second bit sequence is sent to the receiving end via a physical broadcast channel.

2. The method according to claim 1, characterized in that, The first bit sequence includes at least one of the following: a first time-domain indicator for indicating the system frame number (SFN); Time-frequency domain information indication; Support status for Category 1 terminal access; Subcarrier spacing; Demodulation reference signal (DMRS) configuration parameters; Indication of access support status; Same-frequency reselection indication information; Synchronization signal index information / channel index information; Transmitter / Receiver Point (TRP) index; Second time domain indication; Wake-up signal indication; Relevant instructions for system information block SIB1; Update instructions; MIMO configuration parameters.

3. The method according to claim 1, characterized in that, The method further includes: Generate a scrambling sequence based on the first information; The first bit sequence is scrambled according to the scrambling sequence; and / or, Generate a scrambling sequence based on the second information; The second bit sequence is scrambled according to the scrambling code sequence; Wherein, the first information and / or the second information each include at least one of the following: First time domain indication; Partial bits in the first time domain indicator; Second time domain indication; Partial bits in the second time domain indicator; SSB index; Synchronization signal index information / channel index information; Partial bits from the synchronization signal index information / channel index information; Update instructions; Transmission Receiver Point (TRP) Index.

4. The method according to claim 2, characterized in that, The time-frequency domain information indication includes at least one of the following: First time-frequency domain information indication; Second time-frequency domain information indication; Wherein, the first time-frequency domain information indication is used to indicate the time-frequency domain information indication of the second type of terminal; The second time-frequency domain information indicator is used to indicate the time-frequency domain information indicator of the first type of terminal.

5. The method according to claim 4, characterized in that, The first time-frequency domain information indicates that it includes first time-domain information and first frequency-domain information; The second time-frequency domain information indicates that it includes second frequency domain information; Among them, the bandwidth / occupied RB / occupied RE indicated by the first frequency domain information is greater than the bandwidth / occupied RB / occupied RE indicated by the second frequency domain information, and the time domain information of the first type of terminal is the same as that of the second type of terminal.

6. The method according to claim 4, characterized in that, The first time-frequency domain information indication includes time-domain resource information and frequency-domain resource information; The second time-frequency domain information indicates whether the second frequency domain resource information is enabled. If the indication is enabled, the second frequency domain resource information is determined according to the frequency domain resource information indicated by the first time-frequency domain information and the predefined rules.

7. The method according to claim 2, characterized in that, The first type of terminal includes one of the following: A terminal with a bandwidth of the first preset bandwidth; Low-power wide-area (LPWA) type terminals.

8. The method according to claim 2, characterized in that, In response to the first bit sequence including at least one of the following, wherein the first bit sequence includes at least a subcarrier interval: Carrier aggregation indication in idle or inactive state; More than one carrier indication message; Secondary cell / secondary cell / secondary carrier indication information.

9. The method according to claim 2, characterized in that, The bearer signal of the TRP index also includes one of the following: Master synchronization signal PSS; Auxiliary synchronization signal SSS.

10. The method according to claim 2, characterized in that, The second time-domain indicator is used to indicate the number of transmission intervals at one of the following granularities: 1ms; 2ms; 2.5ms; 3ms.

11. The method according to claim 2, characterized in that, The relevant indication of SIB1 is used to indicate at least one of the following: SIB1 does not exist, and initial access cannot be performed; SIB1 does not exist, and initial access is permitted; SIB1 exists.

12. The method according to claim 2, characterized in that, The update instruction is located in one of the following: Located in the first X bits of the first bit sequence; Located in the first X bits of the second bit sequence; Located in the first X bits of the encoded bit sequence; Carried in PSS or SSS.

13. The method according to claim 2, characterized in that, The relevant configuration parameters for MIMO include one of the following: Number of antennas; Precoding matrix.

14. The method according to claim 2, characterized in that, Some bits in the first bit sequence are carried by the main information block (MIB), and the other part of the bits are carried by the L1 layer. The information carried by the L1 layer includes at least one of the following: At least some bits in the first time-domain indication; Second time domain indication; Update instructions; Synchronization signal index information / channel index information.

15. The method according to claim 2, characterized in that, In the first bit sequence, some bits are carried by the MIB, another part are carried by the L1 layer, and yet another part are carried in a predefined manner. The information carried by the L1 layer or the predefined method includes at least one of the following: At least some bits in the first time-domain indication; Second time domain indication; Synchronization signal index information / channel index information; Update instructions.

16. The method according to claim 14 or 15, characterized in that, At least some of the bits in the first time-domain indication include one of the following: When the transmission period of SSB or PBCH is 20ms, the second least significant bit and / or the third least significant bit of the SFN; When the transmission period of SSB or PBCH is 40ms, the third least significant bit and / or the fourth least significant bit of the SFN; When the transmission period of SSB or PBCH is 80ms, the fourth least significant bit of the SFN; When the transmission period of SSB or PBCH is 160ms, the fifth least significant bit of the SFN.

17. The method according to claim 1, characterized in that, The first bit sequence includes: a first type of information bits; Wherein, the first type of information bits are mapped to the first index set; the first index set includes indices in the data candidate index set whose indices are less than M.

18. The method according to claim 17, characterized in that, The first set of indexes includes at least one of the following: 111,119,123,125,126,127； 246,249,250,252,223,239,251,247,253,254,255； 495,503,507,509,510,511。 19. The method according to claim 1, characterized in that, The first bit sequence includes: second type of information bits; The second type of information bits are mapped to the second index set; The second set of indexes includes at least one of the following: The set of indexes with the lowest reliability in the candidate index set; The set of indexes with the lowest reliability in the candidate index set, excluding the first set of indexes.

20. The method according to claim 1, characterized in that, The first bit sequence includes: second type of information bits; The second type of information bits are mapped to the second index set; The second set of indexes includes at least one of the following: 157 110 117 212 171 226 216 158 118 173 121 199 179 228 174 122 203 63 181 232 124 205 182 211 185 240 206 95 213 186 227 111 214 188 217 229 159 119 218 230 233175 123 220 183 234 125 241 207 187； 427 414 223 472 455 377 435 319 484 430 488 239 378 459 437 380 461 496 351 467 438 251 462 442 441 469 247 367 253 375 444 470 483 415 485 473 474 254 379 431 489 486 476 439 490 463 381 497 492 443； 831 947 507 889 984 751 942 996 971 890 509 949 973 1000 892 950 863 759 1008 510 979 953 763 974 954 879 981 982 927 995 765 956 887 985 997 986 943 891 998 766 511 988 1001 951 1002 893 975 894 1009 955。 21. The method according to claim 1, characterized in that, The first bit sequence includes: third type of information bits; The third type of information bits are mapped to a third index set; the index position in the third index set is the position with the lowest reliability in the data candidate index set.

22. The method according to claim 1, characterized in that, The first bit sequence includes: third type of information bits; The third type of information bits is mapped to a third index set; the third index set includes at least one of the following: 63 95 110 111 117 118 119 121 122 123 124 125 157 158 159 171 173 174 175 179 181 182 183 185 186 187 188 199 203 205 206 207 211 212 213 214 216 217 218 220 226 227 228 229 230 232 233 234 240 241； 239 247 251 253 254 319 351 367 375 377 378 379 380 381 414 415 427 430 431 435 437 438 439 441 442 443 444 455 459 461 462 463 467 469 470 472 473 474 476 483 484 485 486 488 489 490 492 496 497； 507 509 510 511 751 759 763 765 766 831 863 879 887 889 890 891 892 893 894 927 942 943 947 949 950 951 953 954 955 956 971 973 974 975 979 981 982 984 985 986 988 995 996 997 998 1000 1001 1002 1008 1009。 23. The method according to claim 1, characterized in that, The encoding of the first bit sequence includes: The mother code length is selected based on the length of the first bit sequence and / or the sequence length and / or code rate after rate matching; The candidate index set for data is determined based on the mother code length and channel reliability. The first bit sequence and the check bit are mapped to the data candidate index set, and the other index positions are mapped to the frozen bits or predefined sequences for encoding.

24. A sequence transmission method, characterized in that, Applied to the receiving end, the method includes: Receive the second bit sequence transmitted via the physical broadcast channel; Rate dematching is performed on the second bit sequence to obtain the encoded bit sequence; The encoded bit sequence is decoded to obtain the first bit sequence.

25. A communication device, characterized in that, include: Memory, and one or more processors; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors perform the method as described in any one of claims 1-23 or 24 above.

26. A storage medium, characterized in that, The storage medium stores a computer program that, when executed by a processor, implements the method as described in any one of claims 1-23 or 24.

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