Signal transmission methods, devices and storage medium

Abstract

Provided in the present application are signal transmission methods, devices and a storage medium. A signal transmission method applied to a first communication device comprises: receiving a low power signal sent by a second communication device, wherein the low power signal is generated by means of the second communication device generating a corresponding sequence on the basis of bit information and performing resource mapping on the sequence.

Description

Signal transmission method, device and storage medium

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on November 2, 2023, with application number 202311450001.1 and application name “Signal Transmission Method, Device and Storage Medium”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a signal transmission method, device and storage medium. Background Art

[0004] Low-power (LP) signals can trigger user equipment (UE) to stop performing UE uplink and downlink transmissions, or wake up the UE to start performing UE uplink and downlink transmissions (or to start the host). Terminal behaviors include monitoring the Physical Downlink Control Channel (PDCCH), receiving the Physical Downlink Shared Channel (PDSCH), and transmitting the Physical Uplink Control Channel (PUCCH) / Physical Uplink Shared Channel (PUSCH). The power consumption of a UE in an active state is higher than that in a sleep state. In addition, compared to the main radio receiver (MR) of the New Radio (NR), a low-power receiver composed of low-power components can detect LP signals in a low-power state. Therefore, the LP signal can provide the terminal with a longer sleep cycle and low-power LP signal detection. By considering backward compatibility to ensure that the UE can receive the LP signal through the LP receiver and / or the NR main radio receiver, how to provide a solution for jointly generating the LP signal by On-Off Keying (OOK) symbols and Orthogonal Frequency Division Multiplexing (OFDM) sequences is an urgent problem to be solved.

[0005] Summary of the Invention

[0006] An embodiment of the present application provides a signal transmission method, applied to a first communication device, comprising: receiving a low-power signal sent by a second communication device; wherein the low-power signal is generated by the second communication device generating a corresponding sequence based on bit information and performing resource mapping on the sequence.

[0007] An embodiment of the present application provides a signal transmission method, which is applied to a second communication device, including: generating a corresponding sequence based on bit information; performing resource mapping on the sequence to generate a corresponding low-power signal; and sending the low-power signal to a first communication device.

[0008] An embodiment of the present application provides a first communication device, comprising: a communication module, configured to receive a low-power consumption signal sent by a second communication device; wherein the low-power consumption signal is generated by the second communication device generating a corresponding sequence according to bit information and performing resource mapping on the sequence.

[0009] An embodiment of the present application provides a second communication device, including: a first generation module, configured to generate a corresponding sequence based on bit information; a second generation module, configured to perform resource mapping on the sequence to generate a corresponding low-power signal; and a communication module, configured to send the low-power signal to the first communication device.

[0010] An embodiment of the present application provides a communication device, comprising: a 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 implement the method described in any of the above embodiments.

[0011] An embodiment of the present application provides a storage medium storing a computer program. When the computer program is executed by a processor, the method described in any one of the above embodiments is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG1 is a flowchart of a UE monitoring a low-power signal according to an embodiment of the present application;

[0013] FIG2a is a schematic diagram illustrating an implementation of an OOK-1 signal generation method provided in an embodiment of the present application;

[0014] FIG2 b is a schematic diagram illustrating an implementation of an OOK-4 signal generation method provided in an embodiment of the present application;

[0015] FIG3a is a schematic diagram of generating a low-power signal provided by an embodiment of the present application;

[0016] FIG3 b is a schematic diagram of generating another low-power signal provided by an embodiment of the present application;

[0017] FIG3c is a schematic diagram of generating a low-power signal provided by an embodiment of the present application;

[0018] FIG4 is a flow chart of a signal transmission method provided in an embodiment of the present application;

[0019] FIG5 is a flowchart of another signal transmission method provided in an embodiment of the present application;

[0020] FIG6 is a schematic diagram of generating low-power signals carrying different sequences at the first positions of different codewords provided by an embodiment of the present application;

[0021] FIG7 is a schematic diagram of a time domain signal in which the first positions of different codewords carry different sequences, provided by an embodiment of the present application;

[0022] FIG8 is a schematic diagram of generating a low-power signal in which information bits and CRC bits carry different sequences, provided by an embodiment of the present application;

[0023] FIG9 is a schematic diagram of a time domain signal in which information bits and CRC bits carry different sequences, provided by an embodiment of the present application;

[0024] FIG10a is a schematic diagram showing a sequence carried at a first position corresponding to a codeword provided by an embodiment of the present application;

[0025] FIG10b is a schematic diagram showing a sequence carried at a first position corresponding to a codeword provided by an embodiment of the present application;

[0026] FIG11a is a schematic diagram of repeated transmission of a second sequence at multiple first positions provided by an embodiment of the present application;

[0027] FIG11b is a schematic diagram of a second sequence transmitted at a first position at a different frequency domain position according to an embodiment of the present application;

[0028] FIG12 is a schematic diagram of transmitting a second sequence on available mapping resources at every first position provided by an embodiment of the present application;

[0029] FIG13 is a schematic diagram of a configuration of different beam directions of the same sequence provided by an embodiment of the present application;

[0030] FIG14 is a schematic diagram of a sequence transmitted in a time slot before an OOK symbol according to an embodiment of the present application;

[0031] FIG15 is a schematic diagram of a sequence provided in an embodiment of the present application, which is transmitted before an OOK symbol and at the first position of an OOK symbol;

[0032] FIG16 is a schematic diagram of an implementation of a sequence carrying information indicating a subgroup related thereto in a first position according to an embodiment of the present application;

[0033] FIG17a is a schematic diagram of an implementation of determining a sequence used for transmission provided by an embodiment of the present application;

[0034] FIG17b is a schematic diagram of an implementation of determining a sequence used for transmission provided by an embodiment of the present application;

[0035] FIG18 is a schematic diagram of an implementation of selecting a sequence for transmission from a sequence pool provided in an embodiment of the present application;

[0036] FIG19 is a schematic diagram illustrating an implementation of segmented mapping of a sequence to two first positions of an OOK-4 symbol provided in an embodiment of the present application;

[0037] FIG20 is a schematic diagram of an implementation of sequence segment mapping provided in an embodiment of the present application;

[0038] FIG21 is a schematic diagram of another implementation of sequence segment mapping provided in an embodiment of the present application;

[0039] FIG22 is a schematic diagram of an implementation of sequence interleaving mapping provided in an embodiment of the present application;

[0040] FIG23 is a schematic diagram of an implementation of sequence interval mapping provided in an embodiment of the present application;

[0041] FIG24 is a schematic diagram of an implementation of a low-power signal indicating application delay provided by an embodiment of the present application;

[0042] FIG25 is a structural block diagram of a first communication device provided in an embodiment of the present application;

[0043] FIG26 is a structural block diagram of a second communication device provided in an embodiment of the present application;

[0044] Figure 27 is a structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] The following describes the embodiments of the present application in conjunction with the accompanying drawings. The following describes the present application in conjunction with the accompanying drawings. The examples are only used to explain the present application and are not used to limit the scope of the present application.

[0046] The technical solution of the present application can be applied to 5G NR, 5G-A and 6G standards, base stations, terminals, chips and applications. The technical solution of the present application can also be applied to licensed and unlicensed spectrum, applicable to duplex and / or half-duplex, applicable to TDD and / or FDD, and applicable to uplink and / or downlink data transmission. The technical solution of the present application can also be used for, but is not limited to, energy-saving terminal devices, RedCap devices, IoT devices, NB-IoT devices, Ambient-IoT devices, and base stations or service cells that support energy saving.

[0047] The description of "or" used in the specification and claims of this application can be used for a list of items (for example, a list of items using phrases such as "at least one" or "one or more") to indicate an inclusive list, for example, a list with at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (that is, A and B and C). In addition, the phrase "based on" should not be interpreted as referring to a bounded closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on condition A and condition B without departing from the scope of this application. In other words, as used in this application, the phrase "based on" should be interpreted in the same manner as the phrase "at least in part based on" or "at least based on a portion of..."

[0048] In the specification and claims of this application, A “associated with B” or “related to B” means that A includes B, or B includes A, or A includes at least one of B, or B includes at least one of A.

[0049] For 5G systems, in addition to latency, reliability, and availability, the energy efficiency of the UE is also crucial. Currently, 5G devices may need to be charged weekly or daily depending on individual usage time. Typically, 5G devices consume tens of milliwatts of power in the Radio Resource Control (RRC) idle / inactive state and hundreds of milliwatts of power in the RRC connected state. Designing to extend battery life is a necessary condition for improving energy efficiency and user experience. Power consumption depends on the length of the configured wake-up cycle, such as the paging cycle. To meet battery life requirements, a higher-value extended discontinuous reception (eDRX) cycle can be used, which results in high latency and is not suitable for such services that require both battery life and low latency. Therefore, an ultra-low power wake-up (LP-WUS) mechanism is proposed.

[0050] After a user device enters an ultra-low power state, existing technologies allow it to acquire channel time and frequency synchronization information based on ZC sequences, m sequences, and PN sequences. For example, the Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS) are commonly used for time and frequency synchronization detection. Therefore, it is necessary to maximize the time and frequency offset resistance of low-power signals.

[0051] In order to carry more indication information and improve noise immunity, information bits can be modulated. Common modulation schemes used to modulate original information bits and bit information include amplitude-shift keying (ASK), OOK, frequency-shift keying (FSK), binary phase shift keying (BPSK), π / 2-BPSK, and quadrature phase shift keying (QPSK). In addition, sequence-based modulation methods can carry indication information through sequences. For example, sequences can be used to carry cell identification (ID) and UE ID information, or sequences in a candidate sequence set can be used to indicate different trigger states.

[0052] The embodiments of the present application provide a signal sending and receiving method, terminal, device and storage medium. The signal is a low-power signal. The receiving method includes: a user device receives configuration information related to the low-power signal sent by a wireless network node, and determines the monitoring time of the low-power signal based on the configuration information. The sending method includes: selecting a suitable resource mapping method based on the resource allocation of the original information bits and the low-power signal, and finally generating a time domain continuous signal. The solution of the present application enables the terminal to detect and receive the low-power signal through the low-power receiver and the main wireless receiver, and the low-power signal generated by the design has good resistance to time domain and frequency domain offsets.

[0053] When LP-WUS uses OOK modulation, it is called OOK-based LP-WUS. Furthermore, when the number of subcarriers occupied by the OOK signal in the frequency domain is greater than one, it is called MC-OOK, and the LP-WUS waveform in this case is also called MC-OOK-based LP-WUS. MC-OOK-based LP-WUS can be generated using the following method.

[0054] The MC-OOK based LP-WUS generation method includes:

[0055] Step 1: An OFDM symbol includes M MC-OOK based LP-WUS symbols, where M is greater than or equal to 1.

[0056] Assume that the data information sent on M OOK symbols is S M , define S M =[s0,s1,s2,s3...,s M-1 ] and its length is M,

[0057] Step 2: Use the following formula to convert S M Convert to data information Q K , where Q K The length of is K, K is greater than or equal to M. For example,

[0058] or,

[0059] Among them, A0+A1+…A i +…+A M-1 =K.

[0060] Among them, data Configurable. Where 0≤i≤M-1.

[0061] Step 3: Data information Q K Do the following:

[0062] (1) Data information Q K After K point DFT / FFT operation, the data information D is obtained. K =[d0,d1,d2,d3,...,d K-1 ];

[0063] (2) Data information D K Fill in the K subcarriers corresponding to LP-WUS in the frequency domain;

[0064] (3) When the system frequency domain bandwidth includes N subcarriers, N point IDFT / IFFT operations are performed on the padding data on the N subcarriers to obtain the time domain data T of N sampling points. N =[t0,t1,t2,t3,...,t n-1 ].

[0065] Then T N =[t0,t1,t2,t3,...,t N-1 ] is the sampling point data of M OOK time domain symbols. Among them, [t0,t1,t2,t3,...,t N / M-1 ] is the sampling point data of the first OOK time domain symbol in M ​​OOK time domain symbols, [t N / M ,t N / M+1 ,...,t 2N / M-1 ] is the sampling point data of the second OOK time domain symbol in M ​​OOK time domain symbols, and so on, [t (M-1)N / M ,t(M-1)N / M+1,...,t N-1 ] is the sampling point data of the Mth OOK time domain symbol among M OOK time domain symbols.

[0066] Finally, the time domain data T of N sampling points N =[t0,t1,t2,t3,...,t N-1 ] Before sending, it is also necessary to perform a cyclic prefix (CP) operation, that is, to add the time domain data T of N sampling points. N The N at the end of cp The information of each sampling point is copied to the time domain data T of N sampling points N The header of the data frame is used to form the time domain data of (N+Ncp) sampling points, and then the time domain data of the (N+Ncp) sampling points are sent out.

[0067] In practice, frequency offset significantly impacts LP-WUS detection. To mitigate this impact, a new LP-WUS transmission method was designed. Given the low spectral efficiency of OOK-based LP-WUS, this new LP-WUS generation and transmission method also improves resource utilization and transmission efficiency.

[0068] The base station sends high-level configuration information to the UE, and the UE determines the monitoring time of the low-power signal and / or monitors the low-power signal according to the high-level configuration information. The high-level configuration information related to the low-power signal includes at least one of the following:

[0069] A time / frequency control resource set (COntrol REsource SET, CORESET) includes a starting subcarrier position interval of a first sequence and a second sequence;

[0070] The search space set (SSS) includes a monitoring opportunity sliding time window T, in units of 1 / 2n symbols or sampling points, used to obtain T time domain correlation values; and a cross-symbol sequence detection flag, used to indicate whether the UE can combine time domain sequences of more than one symbol for correlation detection or monitoring.

[0071] Modulation and Code Scheme (MCS), including a first modulation and coding scheme and / or a second modulation and coding scheme. The first modulation and coding scheme includes at least one of a polar code, an RM code, and a Manchester code and a modulation scheme of at least one of ASK, OOK, and FSK; the second modulation and coding scheme includes at least one of a polar code, an RM code, an LDPC code, and a convolutional code as described above and a modulation scheme of at least one of an SSS sequence, a PSS sequence, an m sequence, a PN sequence, a ZC sequence, pi / 2-BPSK, BPSK, QPSK, 16QAM, and DFT-s-OFDM.

[0072] The candidate sequence set or sequence pool size is used to indicate the number of available sequences, facilitating sequence detection at the receiver.

[0073] In one example, Figure 1 is a flowchart of a UE monitoring a low-power signal provided by an embodiment of the present application. As shown in Figure 1, the process of the UE monitoring a low-power signal includes the following steps: a base station sends configuration information related to the low-power signal; and the user equipment monitors the low-power signal according to the configuration information.

[0074] In an embodiment, the base station configures configuration information such as CORESET, SSS, and modulation and coding mode, and sends the configuration information to the UE. The UE determines to monitor the LP-WUS on the configured resources according to the configuration information.

[0075] OOK-based LP-WUS can carry 1-bit information (denoted as OOK-1) and multi-bit information (denoted as OOK-4) on a single OFDM symbol. In some embodiments, the high-level portion of the OOK symbol is recorded as the first position or the first position portion of the OOK symbol, and the low-level portion of the OOK symbol is recorded as the second position or the second position portion of the OOK symbol. In some embodiments, the first position represents a high-level position, and the second position represents a low-level position. In some embodiments, the first position represents a transmission position, and the second position represents no transmission position. In some embodiments, the first position represents a sequence transmission position, and the second position represents no sequence transmission position, etc. Among them, no sequence transmission position means that the position transmits an all-zero sequence or a sequence whose real part or amplitude value is not greater than zero, or does not carry the second sequence, or does not use sequence scrambling.

[0076] Figure 2a is a schematic diagram of an implementation of an OOK-1 signal generation method provided in an embodiment of the present application. As shown in Figure 2a, 1 bit of information is Manchester-encoded with a code rate of 1 / R to generate a codeword of R bits in length (for example, R=2, bit 1 corresponds to the codeword '10', and bit 0 corresponds to the codeword '01'), and each bit in the codeword occupies one OFDM symbol. The bit 1 in the codeword corresponds to the first position of the OOK-1 time domain signal (occupies one OFDM symbol), and the bit 0 in the codeword corresponds to the second position part of the OOK-1 time domain signal (occupies another adjacent OFDM symbol). The first position part can map a sequence, and the sequence includes at least one of an m-sequence, a ZC sequence, a pseudo-noise (PN) sequence, a low peak-to-average power ratio (PAPR) sequence, a primary synchronization sequence (PSS), a secondary synchronization sequence (SSS), a tracking reference signal (TRS) and a phase sequence, a QPSK modulation symbol, etc.

[0077] Figure 2b is a schematic diagram of an implementation of an OOK-4 signal generation method provided in an embodiment of the present application. As shown in Figure 2b, 1 bit of information is Manchester-encoded with a code rate of 1 / R to generate a codeword of R bits in length (for example, R=2), and M codewords occupy one OFDM symbol (for example, M=2). The codewords mapped on the same OFDM symbol, the bits that are 1 in the codeword correspond to the first position of the OOK-4 time domain signal, and the bits that are 0 in the codeword correspond to the second position part of the OOK-4 time domain signal. The first position part can map a sequence, and the sequence includes at least one of an m-sequence, a ZC sequence, a PN sequence, a low PAPR sequence, a primary synchronization sequence (PSS), a secondary synchronization sequence (SSS), a tracking reference signal (TRS), and a phase sequence.

[0078] The low-power signal generation process includes at least one of the following steps: bit information, sequence generation, coding, modulation, time-frequency domain resource mapping, IFFT transformation, and generation of time domain signals.

[0079] Figure 3a is a schematic diagram of generating a low-power signal provided by an embodiment of the present application. As shown in Figure 3a, the bit information includes first bit information and second bit information. The first bit information generates an OOK symbol according to at least one of the first coding mode (Manchester coding) or the first modulation mode (OOK). The second bit information generates a second sequence according to at least one of the second coding mode (polar code, RM code, TBCC code and LDPC code, etc.) or the second modulation mode (sequence-based modulation mode). The OOK symbol is mapped to the corresponding time-frequency domain / resource element (RE) resource through the first time-frequency resource mapping mode. The second sequence is carried on the mapping resource at the first position of the OOK symbol through the second time-frequency resource mapping mode. Finally, a low-power signal is generated through IFFT transformation. D2 is not greater than D1 / (C1 / B1). Q1 and Q2 are the modulation symbol lengths after 1-bit modulation. For the first modulation mode, Q1 is equal to the length of the first position of the OOK symbol. For the second modulation mode, Q2 is equal to the length of the second sequence. The first bit information and the second bit information can be the same information, different information, or related information.

[0080] Figure 3b is a schematic diagram of generating another low-power signal provided by an embodiment of the present application. As shown in Figure 3b, the bit information includes first bit information and second bit information. The first bit information generates an OOK symbol according to at least one of the first sequence generation formula, the first modulation method, and the first coding method. The second bit information generates a second sequence according to the second sequence generation method. The OOK symbol and the second sequence are mapped to the time-frequency domain resources according to the first and second mapping methods respectively, and finally generate a low-power signal through IFFT transformation. The second sequence generation includes determining at least one of a candidate sequence pool, a number of sequences for indicating bit information, an initial value for sequence generation, a sequence type, and a sequence formula. The second modulation method includes selecting a second sequence to be transmitted based on a specific number of bit information. The second sequence is carried on the mapping resource of the first position of the OOK symbol through the second time-frequency resource mapping method. The first bit information and the second bit information can be the same information or different information or related information.

[0081] Figure 3c is a schematic diagram of the generation of a low-power signal provided by an embodiment of the present application. As shown in Figure 3c, the bit information generates a sequence according to the sequence generation formula and performs resource mapping to finally generate a low-power signal; or the bit information includes two parts of information, wherein the two parts of information include UE group indication information and UE subgroup indication information. For example, the sequence generation formula includes two parts: second sequence generation and OOK symbol generation, wherein the OOK symbol is used to indicate the UE group information, and the second sequence transmitted at the first position of the OOK symbol is used to indicate the UE subgroup information. In some embodiments, the bit information is transformed through the sequence generation formula, resource mapping and IFFT to obtain the final time domain signal.

[0082] In Figures 3a and 3b, the UE may select any combination of one or more operations from among the multiple operations to generate a low-power signal. For example, coding, modulation, and sequence generation are optional. For example, the low-power generation process may include only coding, only modulation, only sequence generation, or a combination of coding (and / or modulation and / or sequence generation) and resource mapping.

[0083] In this application specification, a codeword represents a sequence obtained by performing an encoding operation on the original data according to a first encoding method, or a sequence obtained by performing a modulation and encoding operation on the original data according to a first coding modulation method, or a sequence that can be directly used for RE mapping after 1-bit original data is subjected to an operation such as a first modulation coding method. For example, the original data '0' and '1' are subjected to a 1 / 2 code rate Manchester encoding operation to obtain a corresponding codeword of '01' and '10' respectively. For example, the original data '0' and '1' are subjected to a 1 / 2 code rate Manchester encoding and OOK modulation operation to obtain a corresponding codeword of and Where L is the number of REs or SCSs occupied / allocated by the corresponding information part.

[0084] In this specification, the description of the second sequence represents at least one of the above-mentioned sequence and / or the second sequence. The description of the first sequence represents the sequence obtained by first coding modulation of OOK modulation symbols and / or bit information.

[0085] In one embodiment, FIG4 is a flowchart of a signal transmission method provided by an embodiment of the present application. This embodiment is applied to generating a low-power signal. This embodiment can be performed by a first communication device. The first communication device can be a terminal. As shown in FIG4 , this embodiment includes: S110.

[0086] S110. Receive a low-power consumption signal sent by a second communication device; wherein the low-power consumption signal is generated by the second communication device generating a corresponding sequence according to bit information and performing resource mapping on the sequence.

[0087] In an embodiment, the second communication device generates different sequences based on the bit information and performs resource mapping on the different sequences to obtain corresponding low-power signals, and sends the low-power signals to the first communication device, so that the first communication device can obtain the corresponding bit information in the detected low-power signal, and trigger the stop or start operation of its own data transmission or physical downlink control channel (PDCCH) monitoring behavior according to the low-power signal, which greatly saves the power consumption of the first communication device and realizes the generation of LP signals based on OOK symbols and OFDM sequences.

[0088] In one embodiment, the sequence includes at least one of the following:

[0089] One or more sequence types;

[0090] one or more candidate sequence sets;

[0091] A sequence generated from one or more sequence initialization values;

[0092] A sequence generated by one or more sequence-generating formulas.

[0093] In an embodiment, different sequences generated based on bit information may be of different sequence types, may belong to different candidate sequence sets, may be generated by different sequence initial values, or may be generated by different sequence generation formulas. In one example, the sequence type may include, but is not limited to, at least one of the following: a ZC sequence; a PN sequence; an m sequence; an SSS sequence; or a PSS sequence.

[0094] In one embodiment, the sequence is generated according to at least one of the following:

[0095] corresponding information bits;

[0096] Corresponding information type;

[0097] Temporal location;

[0098] Frequency domain position.

[0099] In an embodiment, the sequence may be mapped to different time domain positions of the time domain resources, or the sequence may be mapped to different frequency domain resources of the frequency domain resources.

[0100] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0101] Generate a corresponding sequence according to the corresponding information bits;

[0102] A corresponding sequence is selected according to corresponding information bits; wherein the information bits include 0 bits and 1 bits.

[0103] In an embodiment, a corresponding sequence may be generated according to different information bits of the bit information, or a corresponding sequence may be selected from a plurality of pre-generated sequences according to different information bits of the bit information.

[0104] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0105] Generate corresponding sequences according to corresponding information types;

[0106] Select the corresponding sequence according to the corresponding information type;

[0107] Among them, the information type includes at least one of the following: system message change information; CMAS / ETWS information; low-power wake-up fallback indication information; low-power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; related information of low-power synchronization signal.

[0108] In an embodiment, a corresponding sequence may be generated according to different information types of the bit information, or a corresponding sequence may be selected from a plurality of pre-generated sequences according to different information types of the bit information.

[0109] In one embodiment, resource mapping the sequence includes: carrying different sequences at the first position of the first symbol corresponding to different codewords. Different codewords may be converted based on bit information, and different sequences may be carried at the first position of the first symbol corresponding to the different codewords. For example, sequence 1 may be carried at the first position of the first symbol corresponding to one codeword, while sequence 2 may be carried at the first position of the first symbol corresponding to another codeword.

[0110] In one embodiment, the codeword is generated in one of the following ways:

[0111] Manchester coding;

[0112] Cyclic Redundancy Check (CRC) calculation;

[0113] Pulse interval encoding (PIE);

[0114] RM coding;

[0115] Bi-Phase Space Coding (FM0).

[0116] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0117] The sequences carried at different frequency domain positions at the first position are different;

[0118] The sequences carried at the first positions at different frequency domain positions are different.

[0119] In one embodiment, the frequency domain position includes at least one of the following: the starting frequency domain position of the first position of the first symbol; the starting position of the resource block (RB) of the first position of the first symbol; the number of RBs allocated to the first position of the first symbol; the ending position of the RB of the first position of the first symbol; and the number of available resource units RE at the first position of the first symbol.

[0120] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0121] The sequences carried at different time domain positions of the first position are different;

[0122] The sequences carried at the first positions at different time domain positions are different.

[0123] In one embodiment, the time domain position includes at least one of the following: the starting time domain position of the first position of the first symbol; the starting OFDM symbol or time slot position of the first position of the first symbol; the time domain end position of the first position of the first symbol; the starting sampling point position of the first position of the first symbol; and the sampling point end position of the first position of the first symbol.

[0124] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0125] The sequences corresponding to different beam directions are the same;

[0126] The sequences carried in the first position correspond to different beam directions;

[0127] The beam direction includes: a synchronization signal and physical downlink broadcast channel block (SSB) index; a quasi co-location (QCL) indication; a CSI-RS index; a CSI-RS resource index; and a Transmission Configuration Indication (TCI) status indication. In one example, different beam directions correspond to the same sequence; or, the same sequence is carried at different first positions, and the same sequence carried at different first positions corresponds to different beam directions; or, different sequences are carried at different first positions, and different sequences carried at different first positions correspond to different beam directions.

[0128] In one embodiment, the signal includes a preamble part and an information part, and the preamble part and the information part have different corresponding transmission sequences; resource mapping is performed on the preamble part, including: carrying the sequence on the time-frequency resources before the first symbol or before the first symbol.

[0129] In one embodiment, the time-frequency resources before the first symbol include at least one of the following: a time slot before the first symbol; an OFDM symbol before the first symbol; adjacent frequency domain resources within the same frequency band as the frequency domain resources occupied by the first symbol; and frequency domain resources in a frequency band adjacent to the frequency domain resources occupied by the first symbol.

[0130] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0131] The sequences corresponding to the first positions of different first information are different;

[0132] The sequences carried on the first symbols for transmitting different first information are different.

[0133] In one example, the sequences corresponding to the first positions of different first information transmitted are different, which can be understood as the first positions of at least two different first information transmitted carry different sequences, and the first positions can belong to the same first symbol or different first symbols; the sequences carried on the first symbols of different first information transmitted are different, which can be understood as the first symbols of at least two different first information transmitted carry different sequences, and the first symbols of at least two different first information transmitted can be the same first symbol or different first symbols.

[0134] In one embodiment, the first information includes at least one of the following: system message change information; CMAS / ETWS information; low power wake-up fallback indication information; low power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; and related information of low power synchronization signals.

[0135] In one embodiment, the first symbol carrying the sequence is used to indicate first information or group information; the sequence is used to indicate the first information or group information or subgroup information corresponding to the group information; wherein the time domain or frequency domain resources at the first position in the first symbol are used to carry the sequence.

[0136] In one embodiment, when the time domain or frequency domain resource at the first position in the first symbol is used to carry a sequence, a candidate sequence pool is determined based on first configuration information. The first configuration information is the high-level configuration information in the above-described embodiment, and may also be simply referred to as configuration information. When the time domain or frequency domain resource at the first position in the first symbol is used to carry a sequence, the second communications device may determine a candidate sequence pool based on the first configuration information, and the first communications device may detect the low-power signal based on sequences in the determined candidate sequence pool.

[0137] In one embodiment, the transmission resources used to carry the sequence or the information indicated by the sequence are determined by at least one of the following parameters:

[0138] The first type indicates the modulation rate or coding rate of the information;

[0139] The number of first positions, the maximum number of first positions, or the minimum number of first positions included in the first symbol corresponding to the first type of indication information;

[0140] the number of first positions corresponding to a specific codeword;

[0141] the number of specific codewords;

[0142] The number of code words corresponding to the first type of indication information;

[0143] The number of codewords corresponding to the CRC bits corresponding to the first type of indication information;

[0144] The length of the first position of the first symbol, the number of occupied subcarriers or the number of REs;

[0145] The number of bits of the first type of indication information;

[0146] The number of CRC bits corresponding to the first type of indication information;

[0147] The number of bits of information indicated by the sequence;

[0148] The number of times the sequence indicates the information is repeated;

[0149] The number of information hopping times indicated by the sequence;

[0150] The length of the sequence;

[0151] Sequence mapping method;

[0152] The number of sequences that can be used for each resource, or the number of information bits that can be carried by each resource.

[0153] In one embodiment, the sequences carried at multiple first positions of the first symbol are the same; or each of the different sequences carried by the first symbol is repeatedly or frequency-hoppedly transmitted at multiple consecutive first positions of the first symbol.

[0154] In one embodiment, the first symbol includes at least one of an OOK symbol, an FSK symbol, and an OFDM symbol.

[0155] In one embodiment, Figure 5 is a flowchart of another signal transmission method provided by an embodiment of the present application. This embodiment is applied to generating a low-power signal. This embodiment can be performed by a second communication device. The second communication device can be a base station. As shown in Figure 5, this embodiment includes: S210-S230.

[0156] S210: Generate a corresponding sequence according to the bit information.

[0157] S220: Perform resource mapping on the sequence to generate a corresponding low-power consumption signal.

[0158] S230: Send a low power consumption signal to the first communication device.

[0159] In one embodiment, the sequence includes at least one of the following:

[0160] One or more sequence types;

[0161] one or more candidate sequence sets;

[0162] A sequence generated from one or more sequence initialization values;

[0163] A sequence generated by one or more sequence-generating formulas.

[0164] In one embodiment, the sequence is generated according to at least one of the following:

[0165] corresponding information bits;

[0166] Corresponding information type;

[0167] Temporal location;

[0168] Frequency domain position.

[0169] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0170] Generate a corresponding sequence according to the corresponding information bits;

[0171] A corresponding sequence is selected according to corresponding information bits; wherein the information bits include 0 bits and 1 bits.

[0172] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0173] Generate corresponding sequences according to corresponding information types;

[0174] Select the corresponding sequence according to the corresponding information type.

[0175] Among them, the information type includes at least one of the following: system message change information; CMAS / ETWS information; low-power wake-up fallback indication information; low-power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; related information of low-power synchronization signal.

[0176] In one embodiment, performing resource mapping on the sequence includes: carrying different sequences on first positions of first symbols corresponding to different codewords.

[0177] In one embodiment, the codeword is generated in one of the following ways:

[0178] Manchester coding;

[0179] Cyclic redundancy check CRC calculation;

[0180] Pulse width encoding PIE;

[0181] RM coding;

[0182] Dual-phase space code FM0.

[0183] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0184] The sequences carried at different frequency domain positions at the first position are different;

[0185] The sequences carried at the first positions at different frequency domain positions are different.

[0186] In one embodiment, the frequency domain position includes at least one of the following: the starting frequency domain position of the first position of the first symbol; the starting position of the resource block RB of the first position of the first symbol; the number of RBs allocated to the first position of the first symbol; the ending position of the RB of the first position of the first symbol; and the number of available resource units RE at the first position of the first symbol.

[0187] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0188] The sequences carried at different time domain positions of the first position are different;

[0189] The sequences carried at the first positions at different time domain positions are different.

[0190] In one embodiment, the time domain position includes at least one of the following: the starting time domain position of the first position of the first symbol; the starting OFDM symbol or time slot position of the first position of the first symbol; the time domain end position of the first position of the first symbol; the starting sampling point position of the first position of the first symbol; and the sampling point end position of the first position of the first symbol.

[0191] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0192] The sequences corresponding to different beam directions are the same;

[0193] The sequences carried at the first position correspond to different beam directions.

[0194] The beam direction includes: synchronization signal and physical downlink broadcast channel block SSB index; quasi-co-site QCL indication; channel state information reference signal (CSI-RS) index; CSI-RS resource index; TCI status indication.

[0195] In one embodiment, the signal includes a preamble part and an information part, and the preamble part and the information part have different corresponding transmission sequences; resource mapping is performed on the preamble part, including: carrying the sequence on the time-frequency resources before the first symbol or before the first symbol.

[0196] In one embodiment, the time-frequency resources before the first symbol include at least one of the following: a time slot before the first symbol; an OFDM symbol before the first symbol; adjacent frequency domain resources within the same frequency band as the frequency domain resources occupied by the first symbol; and frequency domain resources in a frequency band adjacent to the frequency domain resources occupied by the first symbol.

[0197] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0198] The sequences corresponding to the first positions of different first information are different;

[0199] The sequences carried on the first symbols for transmitting different first information are different.

[0200] In one embodiment, the first information includes at least one of the following: system message change information; CMAS / ETWS information; low power wake-up fallback indication information; low power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; and related information of low power synchronization signals.

[0201] In one embodiment, the first symbol carrying the sequence is used to indicate first information or group information; the sequence is used to indicate the first information or group information or subgroup information corresponding to the group information; wherein the time domain or frequency domain resources at the first position in the first symbol are used to carry the sequence.

[0202] In one embodiment, when the time domain or frequency domain resource at the first position in the first symbol is used to carry a sequence, a candidate sequence pool is determined according to the first configuration information.

[0203] In one embodiment, the transmission resources used to carry the sequence or the information indicated by the sequence are determined by at least one of the following parameters:

[0204] The first type indicates the modulation rate or coding rate of the information;

[0205] The number of first positions, the maximum number of first positions, or the minimum number of first positions included in the first symbol corresponding to the first type of indication information;

[0206] the number of first positions corresponding to a specific codeword;

[0207] the number of specific codewords;

[0208] The number of code words corresponding to the first type of indication information;

[0209] The number of codewords corresponding to the CRC bits corresponding to the first type of indication information;

[0210] The length of the first position of the first symbol, the number of occupied subcarriers or the number of REs;

[0211] The number of bits of the first type of indication information;

[0212] The number of CRC bits corresponding to the first type of indication information;

[0213] The number of bits of information indicated by the sequence;

[0214] The number of times the sequence indicates the information is repeated;

[0215] The number of information hopping times indicated by the sequence;

[0216] The length of the sequence;

[0217] Sequence mapping method;

[0218] The number of sequences that can be used for each resource, or the number of information bits that can be carried by each resource.

[0219] In one embodiment, the sequences carried at multiple first positions of the first symbol are the same; or each of the different sequences carried by the first symbol is repeatedly or frequency-hoppedly transmitted at multiple consecutive first positions of the first symbol.

[0220] In one embodiment, the first symbol includes at least one of an OOK symbol, an FSK symbol, and an OFDM symbol.

[0221] In one embodiment, the signal transmission method applied to the second communication device further includes: configuring the number of bits of the sequence indication carried on an OFDM symbol or a first position, so that the first communication device detects the low power consumption signal from the sequence in the corresponding sequence pool according to the number of bits.

[0222] In an embodiment, the second communication device configures the number of bits that can be indicated by a sequence carried in an OFDM symbol or a first position, and transmits the sequence, the number of bits, and the first position, or information related to the sequence, the number of bits, and the OFDM symbol, to the first communication device, so that the first communication device detects the low-power signal based on the corresponding sequence in the candidate sequence pool. In one embodiment, if the number of first positions is less than the number of first positions required for the sequence, the first communication device defaults to expanding the number of candidate sequences until the mapping resources corresponding to the first position meet the mapping resources required for sequence transmission.

[0223] In one embodiment, the signal transmission method applied to the second communication device further includes: receiving a first feature related to the low power consumption signal sent by the first communication device; wherein the first feature is a feature that the first communication device needs to support.

[0224] In one embodiment, the first feature includes at least one of the following:

[0225] Supporting detection or reception of a sequence or a sequence carried by a first position of a first symbol;

[0226] The maximum number of bits supported for sequence carrying;

[0227] The maximum number of bits supported by the first symbol;

[0228] The maximum number of sequences that can be tested within a specific timeframe or with specific resources;

[0229] The number of candidate sequence pools supported;

[0230] The maximum number of candidate sequences supported for transmission;

[0231] The capability to support relaxation of serving cell measurements; wherein the measurements include: SSB-based measurements, CSI-RS-based measurements, TRS-based measurements, PRS-based measurements, PTRS-based measurements, or CRS-based measurements.

[0232] It should be noted that, for the explanation of parameters such as the sequence and first configuration information involved in the signal transmission method applied to the second communication device, please refer to the description in the embodiment corresponding to the above-mentioned information transmission method applied to the first communication device, and will not be repeated here.

[0233] The method in the above embodiment can also be used in a scenario where a first communication device sends data information to a second communication device. The first communication device generates different sequences based on the bit information and performs resource mapping on the different sequences to obtain corresponding low-power signals. The low-power signals are then sent to the second communication device, allowing the first communication device to generate and send low-power signals with lower power consumption. This ensures the coexistence of low-power signals and traditional signals / channels, which is beneficial for the second communication device to receive the low-power signals sent by the first communication device.

[0234] In the first embodiment, taking the first symbol as an OOK symbol as an example, resource mapping in which a sequence is carried on the first position of the OOK symbol is described.

[0235] Manchester encoding is used to generate N codewords. Sequence one is carried on the first codeword, or on the first position of the OOK symbol corresponding to the first codeword; sequence two is carried on the second codeword, or on the first position of the OOK symbol corresponding to the second codeword.

[0236] In some embodiments, the OOK symbol indicates first-type indication information. The first-type indication information is Manchester-encoded to obtain a corresponding codeword, wherein different codewords have different sequences carried in the first position of the OOK symbol. Different sequences may include, but are not limited to, at least one of the following: different sequence types, different sets of candidate sequences, different initial values ​​for the same sequence type, or different sequence generation formulas. For other codewords, the sequence mapping method is similar.

[0237] Figure 6 is a schematic diagram of the generation of a low-power signal in which the first positions of different codewords carry different sequences, provided by an embodiment of the present application. As shown in Figure 6, the bit information is '0111', and the Manchester encoding with a code rate of 1 / 2 obtains '1' corresponding to the codeword '10', and '0' corresponding to the codeword '01'. The first position of the OOK symbol corresponding to the codeword '10' carries the sequence obtained by sequence 1, and the first position of the OOK symbol corresponding to the codeword '01' carries the sequence obtained by sequence 2. Figure 7 is a schematic diagram of a time domain signal in which the first positions of different codewords carry different sequences, provided by an embodiment of the present application. As shown in Figure 7, the first position corresponding to the codeword '10' carries sequence one, and the first position corresponding to the codeword '01' carries sequence two. Optionally, sequence one is a sequence obtained by PN sequence 1, and sequence two is a sequence obtained by PN sequence 2.

[0238] In the second embodiment, taking the first symbol being an OOK symbol as an example, resource mapping in which a sequence is carried on the first position of the OOK symbol is described.

[0239] In one embodiment, the OOK symbol indicates first-type indication information. The first-type indication information is subjected to a cyclic redundancy check to generate CRC bit information. The first-type indication information and the CRC bit information carry different bit information or sequences at the first position of the codeword or OOK symbol corresponding to the first-type indication information and the CRC bit information. The different sequences may include, but are not limited to, at least one of the following: different sequence types, different candidate sequence sets, different initial values ​​of the same sequence type, or different sequence generation formulas.

[0240] In some embodiments, the first position corresponding to the first type of indication information carries sequence one, and the first position corresponding to the CRC bit carries sequence two.

[0241] FIG8 is a schematic diagram of generating a low-power signal in which information bits and CRC bits carry different sequences, provided by an embodiment of the present application. As shown in FIG8 , the bit information is '01101010', and the first position of the information bit corresponding to the OOK symbol carries the sequence 1 obtained by the sequence 1 generation formula. The CRC bits generated corresponding to the bit information are '01101010' (i.e., N CRC=8), the first position of the OOK symbol corresponding to the CRC bit carries sequence two obtained by the sequence 2 generation formula. Figure 9 is a schematic diagram of a time domain signal in which information bits and CRC bits carry different sequences, provided by an embodiment of the present application. As shown in Figure 9, the first position of the OOK symbol corresponding to the information bit carries sequence one. The first position of the OOK symbol corresponding to the CRC bit carries sequence two. Optionally, sequence one is a sequence obtained from sequence 1, and sequence two is a sequence obtained from sequence 2. Optionally, sequence 1 is a ZC sequence, and sequence 2 is a PN sequence or an m sequence or an SSS sequence or a PSS sequence. Optionally, sequence 1 and sequence 2 are PN sequences generated by different initial values. Optionally, sequence 1 is a sequence selected from sequence pool 1, and sequence 2 is a sequence selected from sequence pool 2, wherein at least the number of sequences or the sequence type or the sequence length or the sequence initial value in sequence pool 1 and sequence pool 2 are different.

[0242] The sequence 1 and sequence 2, or the sequence 1 to sequence N, are generated using at least one of the following methods:

[0243] 1) Using the same sequence generation formula but different initial values;

[0244] 2) Generated using different sequence generation formulas;

[0245] 3) belong to different sequence types;

[0246] 4) Mapping resources in different time and frequency domains;

[0247] 5) Carry different indication information.

[0248] In some embodiments, the mapped resource of the first position of the OOK symbol is the available transmission resource of the sequence.

[0249] In some embodiments, when the first preset condition is met, the time-frequency domain resources of the sequence mapping are within or include at least one of the following resource ranges:

[0250] A mapping resource of the first position of the OOK symbol of the CRC bit of the first type of indication information;

[0251] A mapping resource of the first position of the OOK symbol of a specific codeword of the CRC bit of the first type indication information;

[0252] A mapping resource of the first position of the OOK symbol of the first type of indication information;

[0253] The first type indicates mapping resources of the first position of the OOK symbol of a specific codeword of information.

[0254] Figure 10a is a schematic diagram of a sequence carried at the first position corresponding to a codeword, provided in an embodiment of the present application. As shown in Figure 10(a), the sequence is mapped to the mapping resource at the first position corresponding to the first '01' codeword indicating information / CRC bits. Figure 10b is a schematic diagram of a sequence carried at the first position corresponding to a codeword, provided in an embodiment of the present application. As shown in Figure 10(b), the sequence is mapped to the mapping resource at the first position corresponding to the first '10' codeword indicating information / CRC bits.

[0255] In one embodiment, the first preset condition includes at least one of the following:

[0256] The first type of indication information uses Manchester coding;

[0257] The first type of indication information uses one or more jumps between the first position and the second position as a codeword;

[0258] The first type of indication information includes at least one of the following: public information (e.g., weather information, earthquake disaster information, CMAS / ETSW information contained in system information), paging information, full wake-up information, UE group wake-up information, UE group ID, and cell ID;

[0259] The sequence carries at least one of time domain timing, synchronization information, symbol ID, UE subgroup ID, UE subgroup wake-up information, time-frequency domain location information, and cell ID;

[0260] The UE supports detecting / receiving the LP-WUS based on the sequence carried in the first position of the OOK symbol.

[0261] According to the LP-WUS generated by the above scheme, the UE can perform sequence correlation detection on the receiving side in addition to envelope detection, demodulation or decoding, which is beneficial to improving the detection performance.

[0262] In some embodiments, the second sequence is mapped to a mapping resource of a specific codeword, where the specific codeword includes at least one of the following:

[0263] The first indication information corresponds to the generated codeword;

[0264] The codeword used corresponding to the first indication information;

[0265] Consecutive 1 elements or non-0 elements in the codeword corresponding to the first indication information;

[0266] a codeword corresponding to the CRC bits obtained from the first indication information;

[0267] The consecutive 1 elements or non-0 elements in the codeword corresponding to the CRC bits obtained by the first indication information.

[0268] The specific codeword is a Manchester-coded codeword. For example, the second sequence is mapped to the final mapping resource corresponding to '1' in the '10' codeword corresponding to the first indication information bit 1.

[0269] In the third embodiment, taking the first symbol being an OOK symbol as an example, resource mapping in which a sequence is carried on the first position of the OOK symbol is described.

[0270] The sequences carried at different frequency domain positions at the first position are different, or the sequences carried at the first positions at different frequency domain positions are different. The frequency domain position includes at least one of the following: the starting frequency domain position of the first position of the OOK symbol; the starting RB position of the first position of the OOK symbol; the number of resource blocks (RBs) allocated to the first position of the OOK symbol; the ending RB position of the first position of the OOK symbol; the number of available resource elements (REs) at the first position of the OOK symbol. The sequence includes at least one of the following: at least one sequence type; at least one candidate sequence set; at least one sequence generated by a sequence initial value; at least one sequence generated by a sequence generation formula.

[0271] In some embodiments, the second sequence may be repeated or transmitted in a frequency hopping manner on the mapped resources of multiple first positions. Figure 11a is a schematic diagram of a second sequence repeatedly transmitted at multiple first positions provided by an embodiment of the present application. As shown in Figure 11a, the second sequence is repeatedly transmitted at four first positions. Figure 11b is a schematic diagram of a second sequence transmitted at first positions at different frequency domain positions provided by an embodiment of the present application. As shown in Figure 11b, the frequency domain positions to which the first first position and the second first position of the second sequence belong are different.

[0272] In the fourth embodiment, taking the first symbol being an OOK symbol as an example, resource mapping in which a sequence is carried on the first position of the OOK symbol is described.

[0273] The sequences carried at different time domain positions of the first position are different, or the sequences carried at the first positions of different time domain positions are different. The time domain bit value includes at least one of the following: the starting time domain position of the first position of the OOK symbol; the starting OFDM symbol / slot position of the first position of the OOK symbol; the time domain end position of the first position of the OOK symbol; the sampling point starting position of the first position of the OOK symbol; the sampling point ending position of the first position of the OOK symbol. The different sequences include at least one of the following: at least one sequence type; at least one candidate sequence set; at least one sequence generated by a sequence initial value; at least one sequence generated by a sequence generation formula.

[0274] In some embodiments, the second sequence is transmitted on a plurality of available mapping resources at intervals of x first-position mapping resources. Figure 12 is a schematic diagram of an embodiment of the present application, providing a second sequence transmitted on an available mapping resource at intervals of one first position. As shown in Figure 12 below, where x is 1, the second sequence is transmitted on the first and third first-position mapping resources.

[0275] In a fifth embodiment, different beam directions correspond to the same sequence, or different sequences carried at the first position correspond to different beam directions. The beam direction includes at least one of the following: an SSB index; a QCL indication; a CSI-RS index; a CSI-RS resource index; or a TCI status indication.

[0276] In some embodiments, the second sequence can be transmitted on mapping resources of multiple first positions, and at least one of the information such as the beam direction, quasi-co-location type, group index and TCI status indication of the same second sequence transmitted at different first positions is different. Figure 13 is a configuration diagram of different beam directions of the same sequence provided by an embodiment of the present application. As shown in Figure 13, the beam directions of the four second sequences carried at the first position of the OOK signal corresponding to the first indication information or CRC bit are beam direction 1, beam direction 2, beam direction 3 and beam direction 4, that is, the beam directions of the same second sequence are all different.

[0277] In the sixth embodiment, taking the first symbol being an OOK symbol as an example, the process of carrying a sequence on resources before the OOK symbol is described.

[0278] The sequence is carried on the time-frequency resources before the first OOK symbol or before the OOK symbol. The time-frequency domain resources include at least one of the following: the time slot before the OOK symbol; the OFDM symbol before the OOK symbol; frequency domain resources adjacent to the frequency domain resources occupied by the OOK symbol within the same frequency band; or frequency domain resources in a frequency band adjacent to the frequency domain resources occupied by the OOK symbol.

[0279] In some embodiments, the second sequence is mapped to a time-frequency domain resource preceding the mapping resource of the first first sequence corresponding to the first indication information, or is mapped to a time slot or OFDM symbol adjacent to the mapping resource of the first first sequence corresponding to the first indication information. Figure 14 is a schematic diagram of a sequence transmitted in a time slot preceding an OOK symbol, provided in an embodiment of the present application. As shown in Figure 14, the second sequence is transmitted in at least one time slot preceding the OOK symbol.

[0280] In some embodiments, the second sequence mapping is sent before the first first sequence time domain or frequency domain resource corresponding to the first indication information, and is sent on the mapping resources of each codeword corresponding to the first indication information or the CRC bits generated by the first indication information. Figure 15 is a schematic diagram of a sequence provided in an embodiment of the present application being transmitted before an OOK symbol and at the first position of an OOK symbol. As shown in Figure 15, the second sequence is transmitted in at least one time slot before the OOK symbol and is transmitted in the first position of the OOK symbol.

[0281] Optionally, the second sequence is used to obtain first channel information. The first channel information includes at least one of the following: time domain / frequency domain synchronization information; Reference Single Received Power (RSRP); and auxiliary first sequence detection.

[0282] Optionally, the second sequence includes at least one of the following: a known sequence; a predefined sequence; a PSS; a SSS; or a TRS. The known sequence or the predefined sequence is a sequence generated using known index information such as a cell ID or a symbol ID.

[0283] Optionally, the user equipment obtains the first channel information based on two closest second sequences on time domain or frequency domain resources. The time domain or frequency domain resources include second sequences on different consecutive frequency domain resources, REs, or RBs within the same symbol. The time domain or frequency domain resources include second sequences on the same consecutive frequency domain resources, REs, or RBs within different symbols.

[0284] In the third embodiment to the sixth embodiment, the first sequence is one or more OOK symbols or one or more Manchester code words.

[0285] In the seventh embodiment, taking the first symbol being an OOK symbol as an example, the implementation process of carrying a sequence at the first position of the OOK symbol is described.

[0286] The sequences corresponding to the first positions of different first information transmitted are different, or the sequences carried on the OOK symbols of different first information transmitted are different. The first information includes at least one of the following: system message change information; Commercial Mobile Alert System (CMAS) / Earthquake and Tsunami Warning System (ETWS) information; LP-WUS fallback indication information; LP-WUS deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; and information related to the low-power synchronization signal LP-SS.

[0287] In some embodiments, the sequences carried by the first positions corresponding to at least two first information are different.

[0288] In some embodiments, the different sequences include: the sequences carried at the first positions corresponding to different first information are of different sequence types; the sequences carried at the first positions corresponding to different first information have different sequence generation initial values; and the sequences carried at the first positions corresponding to different first information have different sequence lengths. The information type is added to the sequence generation initial value, or the sequence generation initial value is determined by the information type.

[0289] For example, the first x1 positions of an OOK signal indicate system message change information; the first positions from (x1+1)th to (x1+x2)th indicate group wakeup information. The first x1 positions carry PN sequence 1; the first positions from (x1+1)th to (x1+x2)th carry PN sequence 2. The initial value for PN sequence 1 is determined by the information type index of the system change information; the initial value for PN sequence 2 is determined by the information type index of the group wakeup information.

[0290] In the eighth embodiment, the OOK symbol indicates first information or group information, and the sequence indicates at least one of the following: first information; group information; subgroup information corresponding to the group information, wherein the time domain / frequency domain resources at the first position of the OOK symbol are used to carry the sequence.

[0291] Optionally, the group information includes UE group wakeup; the subgroup information includes UE subgroup wakeup. Optionally, the group information includes full wakeup; the subgroup information includes UE group wakeup. Optionally, the group information includes cell information; the subgroup information includes UE group information. The cell information includes at least one of cell-specific information, a cell identifier, and full wakeup (i.e., all UEs in the cell that support LP-WUS detection are awakened).

[0292] For example, the OOK symbol indicates that all UEs in UE group 1 are awakened, and the sequence carried on the first position of the OOK symbol indicates whether each UE in UE group 1 is awakened or the time / symbol ID at which each UE is awakened.

[0293] Optionally, the information indicated by the OOK symbol is associated with the information indicated by the sequence carried at the first position of the OOK symbol.

[0294] Optionally, the first position of the OOK symbol indicating the group information is greater than the number of sequences required to indicate the subgroup information.

[0295] For example, group information is 1 bit, and subgroup information is 2 bits. There is one sequence in the first position of the OOK symbol corresponding to UE group 1, and there are four sequences in the candidate sequence pool, meaning that a sequence can indicate 2 bits of information. Therefore, the number of sequences required to indicate subgroup information is one. The sequence corresponding to the subgroup information is carried in the first position of the OOK symbol corresponding to the group information. Indicating UE group 1 indicates the first UE group.

[0296] Optionally, if the number of sequences required to indicate all subgroup information is N, then among the first positions of all OOK symbols for transmitting the indication information, the first N first positions are used to carry the required N sequences.

[0297] Optionally, if the number of sequences required to indicate all subgroup information is N, and the number of first positions of all OOK symbols for transmitting the indication information is m times N (i.e., the number of first positions is greater than N*(m-1) and less than N*(m+1)), then the first positions used to carry the required sequences and / or every two required sequences are spaced by (m-1) first positions.

[0298] Optionally, if the number of sequences required to indicate all subgroup information is N, and the number of first positions of all OOK symbols of the transmission indication information is m times N (that is, the number of first positions is not less than N*m and less than N*(m+1)), then each sequence required to be transmitted is repeatedly transmitted at m consecutive first positions.

[0299] In some embodiments, there are many first positions of OOK symbols that can carry a sequence, and the mapping resources of the OOK symbols are grouped here. Optionally, the OOK symbol resources corresponding to each group information in the first type of indication information or the first position resources of the corresponding OOK symbols are defined as a resource group. Optionally, the group ID or subgroup ID information related to / corresponding to the group information is carried by a sequence. Optionally, the sequence indicating the corresponding group ID or subgroup ID is mapped on the resource group of the group information. Figure 16 is a schematic diagram of the implementation of a sequence carrying an indication of subgroup information related thereto at the first position provided by an embodiment of the present application. As shown in Figure 16, the sequence carried at the first position of the OOK signal indicating the UE group wake-up information is used to indicate the wake-up information of each UE subgroup (UE subgroup) within the UE group.

[0300] In some embodiments, there are a large number of first positions of OOK symbols that can carry a sequence. The resources mapped to these OOK symbols are grouped. Optionally, each resource group includes resources that are mapped once to carry the desired sequence. Optionally, if there are more than one resource group, the desired sequence is repeatedly transmitted across multiple resource groups.

[0301] In the ninth embodiment, if the time domain / frequency domain resource at the first position of the OOK symbol is used to carry a sequence, a candidate sequence pool is determined according to configuration information. Optionally, the UE detects the LP-WUS at the receiving end according to a sequence in the determined candidate sequence pool.

[0302] In some embodiments, the number of information bits indicated by the sequence, or the size of the candidate sequence pool, or the set of candidate sequences, or the total number / minimum number of candidate sequences, or the transmission resource of the sequence or the information indicated by the sequence is determined by at least one of the following:

[0303] The first type indicates the modulation rate or coding rate of the information;

[0304] The number of first positions, the maximum number of first positions, or the minimum number of first positions included in the OOK symbols corresponding to the first type of indication information;

[0305] the number of first positions corresponding to a specific codeword;

[0306] the number of specific codewords;

[0307] The number of code words corresponding to the first type of indication information;

[0308] The number of codewords corresponding to the CRC bits corresponding to the first type of indication information;

[0309] The length of the first position of the OOK symbol or the number of subcarriers / REs occupied;

[0310] The number of bits of the first type of indication information;

[0311] The number of CRC bits corresponding to the first type of indication information;

[0312] The number of bits of information indicated by the sequence;

[0313] The number of times the sequence indicates the information is repeated;

[0314] The number of information hopping times indicated by the sequence;

[0315] The length of the sequence;

[0316] The mapping method of the sequence.

[0317] The number of sequences that can be used for each resource, or the number of information bits that can be carried by each resource.

[0318] In some embodiments, if the sequence does not perform repeated transmission, the mapping resource size of the sequence is not greater than the mapping resource size of the available first position.

[0319] In some embodiments, if the sequence performs repeated transmission or frequency hopping transmission, the mapping resource size of the sequence transmitted once is in a multiple relationship with the mapping resource size of the available first position.

[0320] In some embodiments, the number of bits of the first type of indication information is N1, the number of CRC bits corresponding to the first type of indication information is NCRC, each bit of information corresponds to an M1-bit codeword, and the number of information bits indicated by the sequence is N2. In some embodiments, the number of bit information that can be indicated by any sequence in the candidate sequence is not less than or or

[0321] In some embodiments, the number of bits indicated by the OOK symbol is N1, the number of CRC bits corresponding to the first type of indication information is NCRC, each bit of information corresponds to an M1-bit codeword, the number of 1s in each codeword or the number of corresponding first positions is R / 2, and the number of information bits indicated by the sequence is N2. In some embodiments, the number of bit information that can be indicated by the candidate sequence is not less than or or

[0322] In some embodiments, the number of bits indicated by the OOK symbol is N1, the number of CRC bits corresponding to the first type of indication information is NCRC, each bit of information corresponds to an M1-bit codeword, the number of 1s in each codeword or the number of corresponding first positions is R / 2, the number of information bits indicated by the sequence is N2, and the number of times the sequence is repeated is P. In some embodiments, the number of bit information that can be indicated by the candidate sequence is not less than or or

[0323] In some embodiments, function(·) represents performing at least one of rounding up, rounding down, rounding to the nearest integer, or retaining the original value on the input '·'.

[0324] In some embodiments, the UE determines a candidate sequence or a pool of candidate sequences for indication information from a plurality of candidate sequences or a plurality of candidate pools according to the (minimum) number of bits required to indicate the sequence.

[0325] Figure 17a is a schematic diagram of an implementation of a sequence for determining transmission provided by an embodiment of the present application. As shown in Figure 17a, in the predefined candidate sequence pool, candidate sequence pool i includes 2i sequences (such as candidate sequence pool 1 includes 2 sequences, which can indicate 1 bit of information). According to the determined sequence indicating at least 1 bit of information, and the candidate sequence pool information, sequence pool 1 is finally selected from all candidate sequence pools as the sequence pool for sequence transmission. Figure 17b is a schematic diagram of an implementation of a sequence for determining transmission provided by an embodiment of the present application. As shown in Figure 17b, in the predefined candidate sequences, each sequence corresponds to 1 sequence index (arranged from small to large), and sequence 0 to sequence (2i-1) sequences can indicate i bits of information. According to the determined sequence indicating at least 1 bit of information, and the candidate sequence pool information, sequence 0 and sequence 1 are finally selected from all candidate sequences as the sequences used for sequence transmission.

[0326] Figure 18 is a schematic diagram of an implementation of selecting a sequence for transmission in a sequence pool provided by an embodiment of the present application. As shown in Figure 18, for example, N1=4 bits, NCRC=4, M1=1; N2=2 bits. Since N1 and NCRC are equal, no matter whether the sequence is mapped in the CRC bit part or mapped in the first indication information bit part, the candidate sequence indicates at least ceil(0.5)=1 bit. If any sequence in the candidate sequence can indicate 1 bit of information, the candidate sequence contains at least two sequences (i.e., 21=2). It can be seen from the above parameters that the available mapping resource size of the first position is twice the mapping resource size required for sequence transmission.

[0327] In some embodiments, the number of bit information that can be indicated by any sequence in the candidate sequences is no more than 2 bits.

[0328] In this document, function(·) indicates performing at least one of rounding up, rounding down, rounding to the nearest integer, or retaining the original value on “·”.

[0329] In the tenth embodiment, the base station configures one symbol or one first position carried sequence that can indicate the number of bits (denoted as N2), and the UE detects LP-WUS according to the sequence in the corresponding sequence pool.

[0330] Optionally, if the number of first positions is less than the number of first positions required by the sequence, the UE expands the number of candidate sequences by default until the mapping resources corresponding to the first positions meet the mapping resources used for sequence transmission.

[0331] For example, the first type of information has a total of 2 bits, the number of CRC bits is 4, 1 / 2 Manchester coding, and the number of first positions is 6. The number of bits required to carry the sequence is 24 bits. The base station can configure the sequence to indicate 2 bits (a total of 4 candidate sequences. In this case, even if all first positions are occupied, only 12 bits of information can be transmitted). The UE then expands the number of candidate sequences to 16, and can now transmit 24 bits of information.

[0332] Optionally, if the number of first positions within one symbol is greater than the number of sequences that need to be carried, the UE assumes that the sequence is transmitted at the first position in accordance with the default single transmission mode, repeated transmission mode or frequency hopping mode.

[0333] Optionally, when the number of first positions is greater than the number of first positions required by the sequence, if the base station configures the sequence to be repeatedly transmitted, the UE default sequence may indicate N2 bits of information and repeat the transmission at the additional or remaining first positions.

[0334] Optionally, when the number of first positions is greater than the number of first positions required for the sequence, if the base station does not configure the sequence for repeated transmission and the number of first positions satisfies the number of first positions required for the sequence to indicate fewer bits or 1 bit of transmission, the UE defaults to the sequence indicating 1 bit of information. Optionally, the UE performs correlation detection using only the first two sequences in the candidate sequences as the sequences used for transmission.

[0335] In the eleventh embodiment, there are multiple mapping relationships between the first position and the sequence.

[0336] In some embodiments, a resource mapping method includes mapping a sequence onto one or more mapping resources at a first position according to a specific mapping method. The specific mapping method includes repetition, hopping, full mapping, and segmented mapping. The mapping methods are all based on resource element mapping (RE mapping).

[0337] Segment Mapping:

[0338] In some embodiments, the segmented mapping method means that the resource size occupied by the sequence is different from the resource size occupied by the first position or the first position of the specific codeword, or the sequence occupies a portion of the resources occupied by the first position or the first position of the specific codeword. The resource size includes at least one of the allocated time domain resources, frequency domain resources, spreading code resources, scrambling code resources, or spatial domain resources.

[0339] In some embodiments, a sequence is mapped to multiple RB sets occupied by the first positions, or one of the frequency domain segments of the sequence is mapped to a RB set occupied by the first position, or multiple sequences are mapped to a RB set occupied by the first position.

[0340] In some embodiments, the mapping resources of a sequence are integer multiples of the mapping resources of a first position or a first position of a specific codeword.

[0341] Figure 19 is a schematic diagram illustrating an implementation of segmented mapping of a sequence to two first positions of an OOK-4 symbol, as provided in an embodiment of the present application. As shown in Figure 19 , the second sequence is divided into two segments, a first segment and a second segment, which are then mapped to the two first positions of the OOK-4 symbol, respectively. The first sequence shown in Figure 19 represents a signal portion of the OOK-4 symbol that includes only a single high-level and low-level transition, or a portion that includes only one first position.

[0342] In some embodiments, for multiple sequences mapped to a mapping resource at a first position, two sequences, or frequency domain segments of two sequences, or two frequency hops of a sequence are mapped to adjacent frequency domain resources. In some embodiments, the interval between adjacent frequency domain resources mapped to the frequency domain segments of the two sequences is no less than α SCSs, REs, or PRBs, or the interval between adjacent time domain resources is no less than 1 OFDM symbol. Where α is an integer no less than 1 and no greater than 2*S.

[0343] Figure 20 is a schematic diagram of an implementation of sequence segment mapping provided by an embodiment of the present application. As shown in Figure 20, two repetitions of the same second sequence are mapped to adjacent frequency domain resources in a frequency hopping manner.

[0344] In some embodiments, one or more sequences are mapped to a mapping resource at a first position. Figure 21 is a schematic diagram of another implementation of sequence segment mapping provided by an embodiment of the present application. As shown in Figure 21, two second sequences are mapped to a mapping resource at a first position.

[0345] In some embodiments, the number of RBs occupied by the first position is not less than the number of RBs occupied by the second position. In some embodiments, the number of resource blocks (RBs) occupied by the first position and the frequency domain position are the same as the number of RBs occupied by the second position and the frequency domain position.

[0346] Full mapping:

[0347] In some embodiments, the mapping mode of full mapping means that the resource size occupied by the first position and the sequence is the same, wherein the resource size includes the starting RB position and the number of RBs of the frequency domain resource.

[0348] In some embodiments, if a sequence is mapped to a mapping resource (including at least an RB) at a first position, the RB sets occupied by two adjacent frequency hopping operations of the sequence do not overlap and have no RB / subcarrier spacing.

[0349] In some embodiments, during the first period, the maximum number of resources configurable by the first sequence does not exceed 64.

[0350] In some embodiments, the first indication information and the second indication information have the same number of bits, or the number of information bits that can be indicated by one OOK and one sequence is the same.

[0351] In some embodiments, the resources occupied by non-zero elements in the codeword generated corresponding to the first indication information are defined as available mapping resources.

[0352] In some embodiments, the available mapping resource set corresponding to the first indication information is larger than the total resources occupied by all sequences. In this case, at least one of the following resource mapping rules must be met:

[0353] 1) All sequences are resource mapped in chronological order and / or in the order of subcarriers / REs / RBs; or

[0354] 2) performing resource mapping of all sequences in the time domain first and then the frequency domain according to the requirement of the first position of each interval of n segments or n codewords, where n is an integer greater than or equal to 0; or

[0355] 3) Only n consecutive non-zero elements or n non-zero symbols in each codeword can be used for resource mapping of the sequence, where n is an integer greater than or equal to 0; or

[0356] 4) Taking the resource set occupied by each sequence as a unit, interleave the resource set of the sequence according to the interleaving method listed in the row, and then map it to the available resources in a sequential mapping manner; or

[0357] 5) Taking a segment of mapping resources of continuous non-zero elements provided by each codeword as a unit, resource mapping is performed according to the interleaved resource index.

[0358] For example, Figure 22 is a schematic diagram illustrating an implementation of sequence interleaving mapping provided by an embodiment of the present application. As shown in Figure 22, if the first sequence carrying the first indication information provides seven available resource sets, and a total of four sequences are generated to occupy four resource sets, the sequences participating in the resource mapping are interleaved in a row-by-row manner. Each resource set represents the total mapped resources occupied by a first position or a codeword.

[0359] In some embodiments, the transmission method of carrying a sequence in the first position of an OOK symbol is applied in an OOK-1 operation mode or in an OOK-4 operation mode with M=1 or M=2.

[0360] In a twelfth embodiment, an indication information verification method includes at least one of correlation demodulation based on a first sequence, correlation demodulation based on a second sequence, and cyclic redundancy check, wherein the first indication information is received after the second indication information is detected.

[0361] Method 1: When transmitting the first indication information based on the first sequence, corresponding CRC bit information is generated. The CRC bit information is carried by the first sequence.

[0362] In some embodiments, if the second sequence does not carry the second indication information, the CRC check step of the first indication information is performed after the second sequence is detected or the second sequence indication information is received.

[0363] In some embodiments, if the second sequence carries second indication information, the second sequence is transmitted on the mapping resource of the first position carrying the CRC bit.

[0364] In some embodiments, if the second sequence carries second indication information, the CRC bit information corresponding to the second indication information is carried by the second sequence. In some embodiments, the second sequence carrying the CRC bit information corresponding to the second indication information is transmitted on the mapping resource of the first position carrying the CRC bit.

[0365] Method 2: When transmitting the first indication information based on the first sequence, corresponding CRC bit information is generated, and the CRC bit information is carried by the second sequence.

[0366] In some embodiments, if the second sequence is not used to carry the second indication information, in order to improve spectrum resource utilization and shorten detection time, the second sequence may be used to carry CRC bit information corresponding to the first indication information.

[0367] In some embodiments, the second sequence is used to carry CRC bit information corresponding to the first indication information. The second sequence is transmitted on a mapping resource at a first position carrying the first indication information; or the second sequence is transmitted on an adjacent resource after the mapping resource of the first sequence carrying the first indication information.

[0368] In some embodiments, if the total number of first positions or the total number of segments corresponding to the first indication information is not less than n times the number of CRC bits, then the second sequence may be used to carry all bits of the CRC information corresponding to the first indication information, or the configuration of the second sequence carrying the CRC information corresponding to the first indication information takes effect, where n is an integer not less than 1.

[0369] In some embodiments, the mapping rule includes at least one of the mapping methods described in Example 1. Figure 23 is a schematic diagram of an implementation of sequence interval mapping provided in an embodiment of the present application. As shown in Figure 23, two sequences are mapped to the first first position and the third first position of the first sequence, respectively.

[0370] In some embodiments, the first position and the second sequence occupy the same frequency domain resources.

[0371] Before mapping the second sequence to the mapping resource at the first position, the sequence is subjected to DFT-s-OFDM transformation or DFT transformation.

[0372] In a thirteenth embodiment, for a transmission mechanism based on OOK and / or sequence-bearing indication information, the UE performs an exception handling or conflict resolution mechanism.

[0373] In some embodiments, if the first type of indication information and the sequence indication information are the same, the UE detects at least one of the OOK symbol and the sequence. In some embodiments, if the UE is configured with the same first type of indication information and sequence indication information, and the indication information obtained by the UE based on sequence detection is different from the indication information obtained based on OOK symbol detection, the UE uses the indication information with CRC check bits or the CRC check passed as the final detected indication information; otherwise, if the CRC check of the first type of indication information and the sequence indication information are both successful, the UE uses the indication information obtained by the sequence detection as the final detected indication information.

[0374] Optionally, the UE determines, based on the base station configuration, that one of the first type of indication information and the sequence indication information is detected to be valid.

[0375] In the fourteenth embodiment, high-layer signaling triggers different information carrying modes of low-power consumption information. The UE determines the application delay of the indication information indicated by the low-power consumption signal according to the high-layer signaling configuration.

[0376] The UE determines whether to map the sequence at the first position or determines whether the sequence carries indication information according to a higher-layer configuration parameter.

[0377] In some embodiments, whether to perform bit information classification is determined based on a higher-level configuration. If the higher-level configuration configures the UE to support two low-power waveforms indicating different information, bit information classification is performed; otherwise, if the higher-level configuration configures the UE to support two low-power waveforms indicating the same information, low-power signals with two waveforms that can carry the complete indication information are generated; otherwise, if the higher-level configuration configures the UE to support only one low-power waveform indication, the configured waveform is used to generate the low-power signal.

[0378] Figure 24 is a schematic diagram illustrating an implementation of a low-power signal indicating application delay according to an embodiment of the present application. As shown in Figure 24, in some embodiments, if the number of first indication information bits N1 carried by the first sequence is greater than 0, or the number of second indication information bits N2 carried by the sequence is greater than 0, the UE applies the first indication information after an application delay of 1, and the UE applies the second indication information after an application delay of 2. Application delay 1 is not less than application delay 2.

[0379] In some embodiments, if the number of first indication information bits N1 carried by the first sequence is greater than 0 and the number of second indication information bits N2 carried by the sequence is equal to 0, the UE applies the indication information after an application delay 1, where the application delay 2 is 0.

[0380] In some embodiments, if the sequence is used to carry the CRC bits corresponding to the first indication information, the application delay of the first indication information is application delay 1 or the sum of application delay 1 and application delay 2.

[0381] In the fifteenth embodiment, a set of second sequences is generated according to the bit information. Optionally, one or more initial values ​​are determined according to the bit information, and a set of second sequences is generated according to the one or more initial values.

[0382] Optionally, the first position of one group carries the repetition of the second sequence, and the first position of another group carries the repetition of the second sequence, and so on; optionally, the first position of the first group is used to carry the repetition of the first sequence in the group of second sequences, and the first position of the second group is used to carry the repetition of the second sequence in the group of second sequences, and so on.

[0383] In some embodiments, the number of repetitions of the set of second sequences or each sequence in the set of second sequences is related to the maximum number of available first positions or is determined by at least one of the parameters used to determine the transmission resources of the sequence in the ninth embodiment.

[0384] In a sixteenth embodiment, the second sequence is determined according to at least one of a corresponding information bit, a corresponding information type, a time domain position, or a frequency domain position. Optionally, the second sequence is generated according to at least one of the number of frequency domain segments of the first symbol, or the frequency domain segment index where the first position of the first symbol is located, or the number of RBs occupied by the first position of the first symbol, or the frequency domain segment index where the first position carrying the second sequence is located, or the number of RBs occupied by the first position carrying the second sequence. Optionally, the second sequence is generated according to at least one of the number of OFDM symbols occupied by the first symbol, or the OFDM symbol ID or slot ID where the first position of the first symbol is located, or the OFDM symbol ID or slot ID where the first position carrying the second sequence is located.

[0385] In some embodiments, the information bits and the sequences carried at the first positions corresponding to the corresponding generated CRC bits are the same.

[0386] In a seventeenth embodiment, the UE sends a first feature (also referred to as a UE feature) related to a low power consumption signal to the base station, where the first feature includes at least one of the following:

[0387] The UE supports detecting or receiving the sequence, or the sequence carried at the first position of the first symbol;

[0388] The maximum number of bits supported by the UE for sequence carrying;

[0389] The maximum number of bits supported by the UE for OOK signaling.

[0390] The maximum number of sequences that the UE supports detection within a specific time / specific resource (e.g., an OFDM symbol or an SCS / RE resource occupied by the first position);

[0391] The number of candidate sequence pools supported by the UE;

[0392] The maximum number of candidate sequences supported by the UE for transmission;

[0393] The UE supports the capability of relaxing serving cell measurements; wherein the measurements include SSB-based measurements, CSI-RS-based measurements, TRS-based measurements, PRS-based measurements, PTRS-based measurements, or CRS-based measurements;

[0394] Whether the UE supports the first type of indication information and the sequence indication information carrying the same indication information; or

[0395] Whether the UE supports monitoring of low-power signals containing sequences; or

[0396] Whether the UE supports monitoring a low power signal including a sequence mapped on the mapped resource at the first position; or

[0397] Whether the UE supports monitoring of the low power consumption signal including the first sequence; or

[0398] Whether the UE supports monitoring of a low power consumption signal including the first sequence and the sequence; or

[0399] Whether the UE supports one of multiple mapping modes of the monitoring sequence, where the multiple mapping modes include: mapping the sequence on the mapping resource at the first position corresponding to the first type of indication information, or mapping the sequence on the mapping resource at the first position corresponding to the CRC bit corresponding to the first type of indication information, or segmented mapping, or full mapping; or

[0400] Whether the UE supports the CRC bit information corresponding to the first type of indication information carried by the sequence; or

[0401] Whether the UE supports detecting a sequence of CRC bit information corresponding to the first type of indication information and mapped at the first position.

[0402] In an embodiment of the present application, the resource mapping refers to at least one of an operation such as a scrambling operation, a modulo-2 addition operation, an operation of substituting a parameter into a generation formula, a multiplication operation between two generated sequences, and a generation sequence and an input parameter satisfying a functional relationship. In an embodiment of the present application, the low-power signal sequence is generated by a sequence generation formula (O*S) before performing RE mapping, and optionally, O represents a first symbol or a first sequence, and S represents a second sequence. In an embodiment of the present application, the first symbol includes a first sequence, or the first sequence is a sequence expression of the first symbol, or the first sequence represents a portion of the first symbol including a first position.

[0403] In the embodiment of the present application, the different sequences further include sequence 1 to sequence N, where N is an integer greater than or equal to 1. The relationship between sequences 1 to sequence N satisfies at least one of the following: different sequence types between the sequences, different candidate sequence sets between the sequences, different initial values ​​corresponding to the same sequence type between the sequences, or different sequence generation formulas between the sequences.

[0404] The serial numbers described in the embodiments of this application do not represent the order of precedence between the items. "A and / or B" described in this application means A and B, A or B, A, B.

[0405] Conditional handover (CHO) is a handover procedure that is executed only when configured execution conditions are met. To improve the reliability and robustness of HO (handover) / SCG (secondary cell group) changes, conditional handover functionality for PCell (primary cell) changes has been introduced. The specific process involves: 1) The network can provide the UE with up to eight candidate cell configurations associated with execution conditions; 2) After receiving the CHO configuration, the UE maintains a connection to the source gNB and begins evaluating the CHO execution conditions of the candidate cells; 3) If at least one CHO candidate cell meets the corresponding CHO execution condition, the UE detaches from the source gNB, applies the stored configuration to the selected candidate cell, synchronizes to the candidate cell, and completes the RRC handover procedure by sending an RRCReconfigurationComplete message to the target gNB. 4) After successfully completing the RRC handover procedure, the UE releases the stored CHO configuration. Upon failure, if the selected cell is a CHO candidate cell and this is the first recovery, and if the network allows CHO-based recovery, the UE will perform CHO.

[0406] To enhance terminal mobility management and enable faster cell handover, dynamic signaling can be used to trigger CHO or CHO evaluation by indicating that the UE's source cell is deactivated. The source cell is a cell that supports network energy saving features or a PCell configured for the UE. The Layer 1 (L1) signaling design for indicating source cell deactivation is described in the following embodiments.

[0407] In a nineteenth embodiment, a group-common downlink control information format (group-common DCI format) is used to indicate at least one of a cell turning off operation and / or activation or deactivation of a cell DTX and / or cell DRX configuration. The group-common DCI format refers to DCI format 2_9 in which a CRC is scrambled by a cell DTX-RNTI or NES-RNTI. DCI format 2_9 is used to transmit one or more information blocks.

[0408] In some embodiments, the cell shutdown operation indication information refers to information used to trigger the UE to perform PCell conditional switching, and / or information instructing the UE configured with the cell as an SCell to deactivate or shut down the SCell, and / or information instructing the serving cell to shut down or start the serving cell, or instructing the serving cell to start a network energy saving mode. The serving cell includes a PCell and / or an SCell.

[0409] In some embodiments, when DCI format 2_9 indicates cell on of a serving cell, the UE monitors or receives DCI format 2_9 on a serving cell other than the serving cell. In some embodiments, when DCI format 2_9 indicates cell off of a serving cell, the serving cell is a PCell of at least one of the UEs receiving DCI format 2_9.

[0410] In some embodiments, if the higher layer parameter configuration indicates cell on or cell off operation information of one or more cells using DCI format 2_9, the bit width of the information block corresponding to the cell on or cell off operation in DCI format 2_9 is N bits; otherwise, the bit width of the information block corresponding to the cell on or cell off operation in DCI format 2_9 is 0, where N is an integer greater than 0.

[0411] In some embodiments, the UE determines the starting position of the information block corresponding to the indication information in the DCI format based on high-layer parameters. One information block may indicate the cell shutdown information of a serving cell or the cell shutdown information of a source cell configured for the UE or the cell shutdown information of the source cell of other UEs that are also configured with the source cell. One information block contains at least 1 bit of information. In some embodiments, one information block contains 1 bit of information. When the bit indicates a value of '0', it indicates that the cell is on; when the bit indicates a value of '1', it indicates that the cell is off; or when the bit indicates a value of '1', it indicates that the cell is off; when the bit indicates a value of '0', the field is reserved; or when the bit indicates a value of '0', it indicates that the cell is off; when the bit indicates a value of '1', the field is reserved. In some embodiments, one information block contains a bitmap information, each bit of which corresponds to the cell shutdown indication information of a cell or cell group of the UE. The cell or cell group is determined by the associated cell ID or cell group ID. In some embodiments, the UE determines, according to higher layer parameters, a starting position of an information block corresponding to indication information of a serving cell with a specific cell index in a DCI format.

[0412] In some embodiments, an information block indicates a cell turning on or off operation of a PCell of a UE and / or a serving cell supporting a network energy saving mode. In some embodiments, the information indicating the cell turning on / off operation includes two states: indicating a cell turning off operation and retaining the field; or indicating a cell turning off operation; retaining the field; indicating a cell turning on operation; or indicating at least one of the following: indicating a cell turning off operation; retaining the field; indicating a cell turning on operation; or indicating that the cell enters a network energy saving mode.

[0413] In the first sub-embodiment, only one information block in DCI format 2_9 is used to indicate the serving cell shutdown operation information. This one information block is used to indicate the cell shutdown operation of the serving cell where the BWP receiving DCI format 2_9 is located. In some embodiments, the N bit is 1 bit, which is used to indicate whether the cell is turned on or off.

[0414] In some embodiments, the information indicating the serving cell deactivation and / or serving cell activation operation in the DCI format 2_9 acts on the serving cell configured with the DCI format 2_9, or the primary cell of the UE.

[0415] In some embodiments, if the cell corresponding to the information block for indicating cell turning on / off operation information in DCI format 2_9 is not the primary cell of the UE and / or a cell that does not support the network energy saving mode, the UE ignores the indication information.

[0416] In a second sub-embodiment, one or more information blocks in DCI format 2_9 are used to indicate cell shutdown operation information for one or more cells. In some embodiments, the UE determines the starting position of an information block corresponding to the indication information of a serving cell in the DCI format based on higher-layer parameters. The serving cell includes a serving cell with a specific cell ID, or a secondary cell (SCell) or a primary cell (PCell) configured for the UE. In some embodiments, the N bit is 1 bit, used to indicate the indication information of the cell shutdown operation corresponding to the serving cell with the specific cell ID.

[0417] In a third sub-embodiment, only one information block in DCI format 2_9 is used to indicate cell shutdown operation information. This one information block is used to indicate cell shutdown operations for one or more serving cells. In some embodiments, N bits is 2 bits. One of these 2 bits is used to indicate cell activation or entry into network energy-saving mode. The other of these 2 bits is used to indicate cell shutdown.

[0418] In a fourth sub-embodiment, one or more information blocks are used in DCI format 2_9 to indicate cell shutdown operation information of one or more cells. In some embodiments, the UE determines the starting position of the information block corresponding to the indication information of a serving cell in the DCI format based on high-layer parameters. The serving cell includes a serving cell with a specific cell ID, or a secondary cell (SCell) or a primary cell (PCell) configured for the UE, or an SCell with a specific SCell group ID. In some embodiments, the information block indicates a bitmap, wherein the bitmap includes N bits of information. In some embodiments, each bit in the bitmap corresponds to cell shutdown operation information indicating one or more cells of a UE.

[0419] In a fifth sub-embodiment, one or more information blocks are included in DCI format 2_9 to indicate cell shutdown operation information of one or more UEs. In some embodiments, the UE determines the starting position of the information block corresponding to the indication information of a serving cell in the DCI format based on high-layer parameters. The serving cell includes a serving cell with a specific cell ID, or a secondary cell (SCell) or a primary cell (PCell) configured for the UE, or an SCell with a specific SCell group ID. In some embodiments, the information block indicates a bitmap, wherein the bitmap includes N bits of information. In some embodiments, each bit in the bitmap corresponds to cell shutdown operation information indicating one or more cells of a UE.

[0420] In a sixth sub-embodiment, one or more information blocks are included in DCI format 2_9 for indicating cell shutdown and / or startup operation information and / or activation or deactivation information of one or more cells. Each information block includes 1 bit for indicating a cell shutdown operation, 1 bit for indicating an activation or deactivation operation of a cell DTX configuration, and 1 bit for indicating an activation or deactivation operation of a cell DRX configuration. The indication field indicating the cell shutdown operation is located before or after the cell DTX / DRX configuration activation / deactivation indication field. In some embodiments, the same information block indicates the activation or deactivation operation and cell shutdown operation of the cell DTX / DRX configuration of the same serving cell of a UE. In some embodiments, the same information block indicates the activation or deactivation operation of the cell DTX / DRX configuration of a first serving cell and the cell shutdown operation of a second serving cell of a UE, wherein the first serving cell and the second serving cell are configured with different cell IDs. In some embodiments, in an information block, if higher layer parameters configure a serving cell to indicate cell shutdown operation information using DCI format 2_9, the cell shutdown operation information indication field is 1 bit; otherwise, it is 0 bit.

[0421] In a seventh sub-embodiment, a DCI format 2_9 includes an information block for indicating cell shutdown operation information for one or more cells. The information block includes one bit of information. The one bit is used to indicate the cell shutdown operation. In some embodiments, if higher-layer parameters configure a serving cell to indicate cell shutdown operation information in DCI format 2_9, the cell shutdown operation information indication field in the information block contains one bit; otherwise, it contains zero bits.

[0422] In an eighth sub-embodiment, a DCI format 2_9 includes an information block for indicating cell shutdown operation information for one or more UEs. The information block includes 1 bit of information. The 1 bit is used to indicate a cell shutdown operation. In some embodiments, if higher-layer parameters in the information block indicate that a serving cell indicates cell shutdown operation information via DCI format 2_9, the cell shutdown operation information indication field is 1 bit; otherwise, it is 0 bits. In some embodiments, the cell is at least one of a PCell, SpCell, or PSCell of the UE.

[0423] In some embodiments, the one or more cells include a cell supporting a network energy-saving mode, and / or a primary cell, and / or a secondary cell, and / or a cell with a specific cell ID, and / or multiple cells with a specific cell group ID. In some embodiments, N is equal to the number of cells supporting a network energy-saving mode configured for the UE, and / or the number of primary cells, and / or the number of cells, and / or the number of secondary cell groups, and / or the number of secondary cell groups plus 1, and / or the sum of the number of secondary cells and primary cells, and / or the sum of the number of secondary cell groups and the primary cell, and / or the number of secondary cells. In some embodiments, the primary cell is a PCell and / or a SpCell (special cell) and / or a PSCell (primary secondary cell).

[0424] Optionally, the cell ID is configured by a higher-level parameter servingCellId.

[0425] Optionally, the configuration information related to the cell deactivation operation of one or more serving cells indicated by DCI format 2_9 or the cell deactivation operation of one or more UEs is configured by a higher-layer parameter CHO-DCI-Config.

[0426] Optionally, the starting position of the indication information corresponding to the cell deactivation operation indication for a serving cell or the cell deactivation operation indication for a UE in the DCI format 2_9 is configured by a higher-layer parameter PositionInDCI-CHO.

[0427] In some embodiments, the information block corresponding to the cell deactivation operation of a serving cell or the cell deactivation operation of a UE in the DCI format 2_9 is located before or after the information block corresponding to the activation or deactivation operation of the cell DTX and / or cell DRX configuration of the serving cell (if any).

[0428] In some embodiments, the information block corresponding to the cell shutdown operation of one or more serving cells or the cell shutdown operation of one or more UEs in the DCI format 2_9 is located before or after all information blocks (if any) corresponding to the activation or deactivation operation of the cell DTX and / or cell DRX configuration.

[0429] In one embodiment, FIG25 is a structural block diagram of a first communication device provided in an embodiment of the present application. As shown in FIG25 , the first communication device in this embodiment includes: a communication module 310 .

[0430] The communication module 310 is configured to receive a low-power consumption signal sent by a second communication device; wherein the low-power consumption signal is generated by the second communication device generating a corresponding sequence according to bit information and performing resource mapping on the sequence.

[0431] In one embodiment, the sequence includes at least one of the following:

[0432] One or more sequence types;

[0433] one or more candidate sequence sets;

[0434] A sequence generated from one or more sequence initialization values;

[0435] A sequence generated by one or more sequence-generating formulas.

[0436] In one embodiment, the sequence is generated according to at least one of the following:

[0437] corresponding information bits;

[0438] Corresponding information type;

[0439] Temporal location;

[0440] Frequency domain position.

[0441] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0442] Generate a corresponding sequence according to the corresponding information bits;

[0443] A corresponding sequence is selected according to corresponding information bits; wherein the information bits include 0 bits and 1 bits.

[0444] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0445] Generate corresponding sequences according to corresponding information types;

[0446] Select the corresponding sequence according to the corresponding information type;

[0447] Among them, the information type includes at least one of the following: system message change information; CMAS / ETWS information; low-power wake-up fallback indication information; low-power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; related information of low-power synchronization signal.

[0448] In one embodiment, performing resource mapping on the sequence includes: carrying different sequences on first positions of first symbols corresponding to different codewords.

[0449] In one embodiment, the codeword is generated in one of the following ways:

[0450] Manchester coding;

[0451] Cyclic redundancy check CRC calculation;

[0452] Pulse width encoding PIE;

[0453] RM coding;

[0454] Dual-phase space code FM0.

[0455] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0456] The sequences carried at different frequency domain positions at the first position are different;

[0457] The sequences carried at the first positions at different frequency domain positions are different.

[0458] In one embodiment, the frequency domain position includes at least one of the following: the starting frequency domain position of the first position of the first symbol; the starting position of the resource block RB of the first position of the first symbol; the number of RBs allocated to the first position of the first symbol; the ending position of the RB of the first position of the first symbol; and the number of available resource units RE at the first position of the first symbol.

[0459] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0460] The sequences carried at different time domain positions of the first position are different;

[0461] The sequences carried at the first positions at different time domain positions are different.

[0462] In one embodiment, the time domain position includes at least one of the following: the starting time domain position of the first position of the first symbol; the starting OFDM symbol or time slot position of the first position of the first symbol; the time domain end position of the first position of the first symbol; the starting sampling point position of the first position of the first symbol; and the sampling point end position of the first position of the first symbol.

[0463] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0464] The sequences corresponding to different beam directions are the same;

[0465] The sequences carried in the first position correspond to different beam directions;

[0466] The different beam directions include: different synchronization signals and physical downlink broadcast channel block SSB indexes or different quasi-co-location QCL indications, TCI status indications.

[0467] In one embodiment, the signal includes a preamble part and an information part, and the preamble part and the information part have different corresponding transmission sequences; resource mapping is performed on the preamble part, including: carrying the sequence on the time-frequency resources before the first symbol or before the first symbol.

[0468] In one embodiment, the time-frequency resources before the first symbol include at least one of the following: a time slot before the first symbol; an OFDM symbol before the first symbol; adjacent frequency domain resources within the same frequency band as the frequency domain resources occupied by the first symbol; and frequency domain resources in a frequency band adjacent to the frequency domain resources occupied by the first symbol.

[0469] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0470] The sequences corresponding to the first positions of different first information are different;

[0471] The sequences carried on the first symbols for transmitting different first information are different.

[0472] In one embodiment, the first information includes at least one of the following: system message change information; CMAS / ETWS information; low power wake-up fallback indication information; low power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; and related information of low power synchronization signals.

[0473] In one embodiment, the first symbol carrying the sequence is used to indicate first information or group information; the sequence is used to indicate the first information or group information or subgroup information corresponding to the group information; wherein the time domain or frequency domain resources at the first position in the first symbol are used to carry the sequence.

[0474] In one embodiment, when the time domain or frequency domain resource at the first position in the first symbol is used to carry a sequence, a candidate sequence pool is determined according to the first configuration information.

[0475] In one embodiment, the transmission resources used to carry the sequence or the information indicated by the sequence are determined by at least one of the following parameters:

[0476] The first type indicates the modulation rate or coding rate of the information;

[0477] The number of first positions, the maximum number of first positions, or the minimum number of first positions included in the first symbol corresponding to the first type of indication information;

[0478] the number of first positions corresponding to a specific codeword;

[0479] the number of specific codewords;

[0480] The number of code words corresponding to the first type of indication information;

[0481] The number of codewords corresponding to the CRC bits corresponding to the first type of indication information;

[0482] The length of the first position of the first symbol, the number of occupied subcarriers or the number of REs;

[0483] The number of bits of the first type of indication information;

[0484] The number of CRC bits corresponding to the first type of indication information;

[0485] The number of bits of information indicated by the sequence;

[0486] The number of times the sequence indicates the information is repeated;

[0487] The number of information hopping times indicated by the sequence;

[0488] The length of the sequence;

[0489] Sequence mapping method;

[0490] The number of sequences that can be used for each resource, or the number of information bits that can be carried by each resource.

[0491] In one embodiment, the sequences carried at multiple first positions of the first symbol are the same; or each of the different sequences carried by the first symbol is repeatedly or frequency-hoppedly transmitted at multiple consecutive first positions of the first symbol.

[0492] In one embodiment, the first symbol includes at least one of an OOK symbol, an FSK symbol, and an OFDM symbol.

[0493] The first communication device provided in this embodiment is configured to implement the signal transmission method applied to the first communication device in the embodiment shown in FIG4 . The implementation principle and technical effects of the first communication device provided in this embodiment are similar and will not be repeated here.

[0494] In one embodiment, FIG26 is a block diagram of a second communication device provided by an embodiment of the present application. As shown in FIG26 , the second communication device in this embodiment includes: a first generation module 410 , a second generation module 420 , and a communication module 430 .

[0495] A first generating module 410 is configured to generate a corresponding sequence according to the bit information;

[0496] A second generating module 420 is configured to perform resource mapping on the sequence and generate a corresponding low-power consumption signal;

[0497] The communication module 430 is configured to send the low power consumption signal to the first communication device.

[0498] In one embodiment, the sequence includes at least one of the following:

[0499] One or more sequence types;

[0500] one or more candidate sequence sets;

[0501] A sequence generated from one or more sequence initialization values;

[0502] A sequence generated by one or more sequence-generating formulas.

[0503] In one embodiment, the sequence is generated according to at least one of the following:

[0504] corresponding information bits;

[0505] Corresponding information type;

[0506] Temporal location;

[0507] Frequency domain position.

[0508] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0509] Generate a corresponding sequence according to the corresponding information bits;

[0510] A corresponding sequence is selected according to corresponding information bits; wherein the information bits include 0 bits and 1 bits.

[0511] In one embodiment, generating the corresponding sequence according to the bit information includes one of the following:

[0512] Generate corresponding sequences according to corresponding information types;

[0513] Select the corresponding sequence according to the corresponding information type;

[0514] Among them, the information type includes at least one of the following: system message change information; CMAS / ETWS information; low-power wake-up fallback indication information; low-power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; related information of low-power synchronization signal.

[0515] In one embodiment, performing resource mapping on the sequence includes: carrying different sequences on first positions of first symbols corresponding to different codewords.

[0516] In one embodiment, the codeword is generated in one of the following ways:

[0517] Manchester coding;

[0518] Cyclic redundancy check CRC calculation;

[0519] Pulse width encoding PIE;

[0520] RM coding;

[0521] Dual-phase space code FM0.

[0522] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0523] The sequences carried at different frequency domain positions at the first position are different;

[0524] The sequences carried at the first positions at different frequency domain positions are different.

[0525] In one embodiment, the frequency domain position includes at least one of the following: the starting frequency domain position of the first position of the first symbol; the starting position of the resource block RB of the first position of the first symbol; the number of RBs allocated to the first position of the first symbol; the ending position of the RB of the first position of the first symbol; and the number of available resource units RE at the first position of the first symbol.

[0526] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0527] The sequences carried at different time domain positions of the first position are different;

[0528] The sequences carried at the first positions at different time domain positions are different.

[0529] In one embodiment, the time domain position includes at least one of the following: the starting time domain position of the first position of the first symbol; the starting OFDM symbol or time slot position of the first position of the first symbol; the time domain end position of the first position of the first symbol; the starting sampling point position of the first position of the first symbol; and the sampling point end position of the first position of the first symbol.

[0530] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0531] The sequences corresponding to different beam directions are the same;

[0532] The sequences carried in the first position correspond to different beam directions;

[0533] The different beam directions include: different synchronization signals and physical downlink broadcast channel block SSB indexes or different quasi-co-location QCL indications, TCI status indications.

[0534] In one embodiment, the signal includes a preamble part and an information part, and the preamble part and the information part have different corresponding transmission sequences; resource mapping is performed on the preamble part, including: carrying the sequence on the time-frequency resources before the first symbol or before the first symbol.

[0535] In one embodiment, the time-frequency resources before the first symbol include at least one of the following: a time slot before the first symbol; an OFDM symbol before the first symbol; adjacent frequency domain resources within the same frequency band as the frequency domain resources occupied by the first symbol; and frequency domain resources in a frequency band adjacent to the frequency domain resources occupied by the first symbol.

[0536] In one embodiment, performing resource mapping on the sequence includes one of the following:

[0537] The sequences corresponding to the first positions of different first information are different;

[0538] The sequences carried on the first symbols for transmitting different first information are different.

[0539] In one embodiment, the first information includes at least one of the following: system message change information; CMAS / ETWS information; low power wake-up fallback indication information; low power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; and related information of low power synchronization signals.

[0540] In one embodiment, the first symbol carrying the sequence is used to indicate first information or group information; the sequence is used to indicate the first information or group information or subgroup information corresponding to the group information; wherein the time domain or frequency domain resources at the first position in the first symbol are used to carry the sequence.

[0541] In one embodiment, when the time domain or frequency domain resource at the first position in the first symbol is used to carry a sequence, a candidate sequence pool is determined according to the first configuration information.

[0542] In one embodiment, the transmission resources used to carry the sequence or the information indicated by the sequence are determined by at least one of the following parameters:

[0543] The first type indicates the modulation rate or coding rate of the information;

[0544] The number of first positions, the maximum number of first positions, or the minimum number of first positions included in the first symbol corresponding to the first type of indication information;

[0545] the number of first positions corresponding to a specific codeword;

[0546] the number of specific codewords;

[0547] The number of code words corresponding to the first type of indication information;

[0548] The number of codewords corresponding to the CRC bits corresponding to the first type of indication information;

[0549] The length of the first position of the first symbol, the number of occupied subcarriers or the number of REs;

[0550] The number of bits of the first type of indication information;

[0551] The number of CRC bits corresponding to the first type of indication information;

[0552] The number of bits of information indicated by the sequence;

[0553] The number of times the sequence indicates the information is repeated;

[0554] The number of information hopping times indicated by the sequence;

[0555] The length of the sequence;

[0556] Sequence mapping method;

[0557] The number of sequences that can be used for each resource, or the number of information bits that can be carried by each resource.

[0558] In one embodiment, the sequences carried at multiple first positions of the first symbol are the same; or each of the different sequences carried by the first symbol is repeatedly or frequency-hoppedly transmitted at multiple consecutive first positions of the first symbol.

[0559] In one embodiment, the first symbol includes at least one of an OOK symbol, an FSK symbol, and an OFDM symbol.

[0560] In one embodiment, the second communication device further includes: a configurator configured to configure the number of bits of the sequence indication carried on an OFDM symbol or a first position, so that the first communication device detects the low power consumption signal from the sequence in the corresponding sequence pool according to the number of bits.

[0561] In one embodiment, the communication module in the second communication device is further configured to: receive a first feature related to the low power consumption signal sent by the first communication device; wherein the first feature is a feature that the first communication device needs to support.

[0562] In one embodiment, the first feature includes at least one of the following:

[0563] Supporting detection or reception of a sequence or a sequence carried by a first position of a first symbol;

[0564] The maximum number of bits supported for sequence carrying;

[0565] The maximum number of bits supported by the first symbol;

[0566] The maximum number of sequences that can be tested within a specific timeframe or with specific resources;

[0567] The number of candidate sequence pools supported;

[0568] The maximum number of candidate sequences supported for transmission;

[0569] The capability to support relaxation of serving cell measurements; wherein the measurements include: SSB-based measurements, CSI-RS-based measurements, TRS-based measurements, PRS-based measurements, PTRS-based measurements, or CRS-based measurements.

[0570] The first communication device provided in this embodiment is configured to implement the signal transmission method applied to the second communication device in the embodiment shown in FIG5 . The implementation principle and technical effects of the first communication device provided in this embodiment are similar and will not be repeated here.

[0571] In one embodiment, Figure 27 is a schematic diagram of the structure of a communication device provided by an embodiment of the present application. As shown in Figure 27, the device provided by the present application includes: a processor 510, a memory 520, and a communication module 530. The number of processors 510 in the device can be one or more, and Figure 27 uses one processor 510 as an example. The number of memories 520 in the device can be one or more, and Figure 27 uses one memory 520 as an example. The processor 510, memory 1520, and communication module 530 of the device can be connected via a bus or other means, and Figure 27 uses a bus connection as an example. In this embodiment, the device can be a first communication device.

[0572] The memory 520, 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 of any embodiment of the present application (for example, the communication module 310 in the first communication device). The memory 520 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the device, etc. In addition, the memory 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 520 may further include a memory remotely located relative to the processor 510, and these remote memories may be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0573] In the case where the communication device is a first communication device, the device provided above can be configured to execute the signal transmission method applied to the first communication device provided in any of the above embodiments, and have corresponding functions and effects.

[0574] In the case where the communication device is a second communication device, the device provided above can be configured to execute the signal transmission method applied to the second communication device provided in any of the above embodiments, and have corresponding functions and effects.

[0575] An embodiment of the present application also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to execute a signal transmission method applied to a first communication device, the method comprising: receiving a low-power signal sent by a second communication device; wherein the low-power signal is generated by the second communication device generating a corresponding sequence based on bit information and performing resource mapping on the sequence.

[0576] An embodiment of the present application also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to execute a signal transmission method applied to a second communication device, the method comprising: generating a corresponding sequence based on bit information; performing resource mapping on the sequence to generate a corresponding low-power signal; and sending the low-power signal to the first communication device.

[0577] It will be appreciated by those skilled in the art that the term user equipment encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a car-mounted mobile station.

[0578] In general, various embodiments of the present application may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.

[0579] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0580] The block diagram of any logical flow in the drawings of the present application may represent program steps, or may represent interconnected logical circuits, modules and functions, or may represent a combination of program steps and logical circuits, modules and functions. A computer program may be stored on a memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, a read-only memory (ROM), a random access memory (RAM), an optical storage device and system (a digital versatile disc (DVD) or a compact disk (CD)). Computer-readable media may include non-transient storage media. A data processor may be of any type suitable for the local technical environment, such as, but not limited to, a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), and a processor based on a multi-core processor architecture.

[0581] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A signal transmission method, applied to a first communication device, comprising: A low power consumption signal is received from a second communication device; wherein the low power consumption signal is generated by the second communication device generating a corresponding sequence according to bit information and performing resource mapping on the sequence.

2. The method according to claim 1, wherein: The sequence includes at least one of the following: One or more sequence types; one or more candidate sequence sets; A sequence generated from one or more sequence initialization values; A sequence generated by one or more sequence-generating formulas.

3. The method according to claim 1, wherein: The sequence is generated according to at least one of the following: The corresponding information bits; The corresponding information type; Temporal location; Frequency domain position.

4. The method according to claim 3, wherein: Generating a corresponding sequence according to the bit information includes one of the following: Generate a corresponding sequence according to the corresponding information bits; A corresponding sequence is selected according to corresponding information bits; wherein the information bits include 0 bits and 1 bits.

5. The method according to claim 3, wherein: Generating a corresponding sequence according to the bit information includes one of the following: Generate corresponding sequences according to corresponding information types; Select the corresponding sequence according to the corresponding information type.

6. The method according to claim 1, wherein: The resource mapping of the sequence includes: carrying different sequences on first positions of first symbols corresponding to different codewords.

7. The method according to claim 6, wherein: The codeword is generated in one of the following ways: Manchester coding; Cyclic redundancy check CRC calculation; Pulse width encoding PIE; RM coding; The two-phase space code is FM0.

8. The method according to claim 1, wherein: The performing resource mapping on the sequence includes one of the following: The sequences carried at different frequency domain positions at the first position are different; The sequences carried at the first positions at different frequency domain positions are different.

9. The method according to claim 3 or 8, wherein: The frequency domain position includes at least one of the following: the starting frequency domain position of the first position of the first symbol; the starting position of the resource block RB of the first position of the first symbol; the number of RBs allocated to the first position of the first symbol; the RB end position of the first position of the first symbol; and the number of available resource units RE at the first position of the first symbol.

10. The method according to claim 1, wherein: The performing resource mapping on the sequence includes one of the following: The sequences carried at different time domain positions of the first position are different; The sequences carried at the first positions at different time domain positions are different.

11. The method according to claim 3 or 10, wherein: The time domain position includes at least one of the following: the starting time domain position of the first position of the first symbol; the starting OFDM symbol or time slot position of the first position of the first symbol; the time domain ending position of the first position of the first symbol; the starting sampling point position of the first position of the first symbol; and the sampling point ending position of the first position of the first symbol.

12. The method according to claim 1, wherein: The performing resource mapping on the sequence includes one of the following: The sequences corresponding to different beam directions are the same; The sequences carried in the first position correspond to different beam directions; Among them, the beam direction includes: synchronization signal and physical downlink broadcast channel block SSB index; quasi-co-site QCL indication; channel state information reference signal CSI-RS index; CRI-RS resource index; TCI status indication.

13. The method according to claim 1, wherein: The signal includes a preamble part and an information part, and the preamble part and the information part have different corresponding transmission sequences; Resource mapping is performed on the leading part, including: carrying a sequence on a time-frequency resource before the first symbol or before the first symbol.

14. The method according to claim 13, wherein: The time-frequency resources before the first symbol include at least one of the following: the time slot before the first symbol; the OFDM symbol before the first symbol; the adjacent frequency domain resources within the same frequency band as the frequency domain resources occupied by the first symbol; the frequency domain resources in the adjacent frequency band to the frequency domain resources occupied by the first symbol.

15. The method according to claim 1, wherein: The performing resource mapping on the sequence includes one of the following: The sequences corresponding to the first positions of different first information transmitted are different; The sequences carried on the first symbols for transmitting different first information are different.

16. The method according to claim 15, wherein: The first information includes at least one of the following: system message change information; CMAS / ETWS information; low power wake-up fallback indication information; low power wake-up deactivation information; cell-level wake-up information; group wake-up information; UE-specific wake-up information; and related information of low power synchronization signals.

17. The method according to claim 1, wherein: The first symbol carrying the sequence is used to indicate first information or group information; the sequence is used to indicate the first information or group information or subgroup information corresponding to the group information; wherein the time domain or frequency domain resources at the first position in the first symbol are used to carry the sequence.

18. The method according to claim 17, wherein: When the time domain or frequency domain resource at the first position in the first symbol is used to carry a sequence, a candidate sequence pool is determined according to the first configuration information.

19. The method according to claim 17, wherein: The transmission resource used to carry the sequence or the information indicated by the sequence is determined by at least one of the following parameters: The first type indicates the modulation rate or coding rate of the information; The number of first positions, the maximum number of first positions, or the minimum number of first positions included in the first symbol corresponding to the first type of indication information; The number of first positions corresponding to a specific codeword; The number of specific codewords; The number of code words corresponding to the first type of indication information; The number of codewords corresponding to the CRC bits corresponding to the first type of indication information; The length of the first position of the first symbol, the number of occupied subcarriers or the number of REs; The number of bits of the first type of indication information; The number of CRC bits corresponding to the first type of indication information; The number of bits of information indicated by the sequence; The sequence indicates the number of times the information is repeated; The number of information hopping times indicated by the sequence; The length of the sequence; The mapping method of the sequence; The number of sequences that can be used per resource, or the number of information bits that can be carried per resource.

20. The method according to claim 1, wherein: The sequences carried at multiple first positions of the first symbol are the same; or each sequence among the different sequences carried by the first symbol is repeatedly or frequency-hoppedly transmitted at multiple consecutive first positions of the first symbol.

21. The method according to any one of claims 6, 9, 11, 13, 14, 15 or 17-20, wherein: The first symbol includes: at least one of an OOK symbol, a FSK symbol, and an OFDM symbol.

22. A signal transmission method, applied to a second communication device, comprising: Generate a corresponding sequence according to the bit information; Performing resource mapping on the sequence to generate a corresponding low-power consumption signal; The low power consumption signal is sent to the first communication device.

23. The method according to claim 22, wherein: The method further comprises: The number of bits of a sequence indication carried on an OFDM symbol or a first position is configured so that the first communication device detects a low power consumption signal from a sequence in a corresponding sequence pool according to the number of bits.

24. The method according to claim 22, wherein: The method further comprises: A first feature related to a low power consumption signal sent by a first communication device is received; wherein the first feature is a feature that the first communication device needs to support.

25. The method according to claim 24, wherein: The first feature includes at least one of the following: Supporting detection or reception of a sequence or a sequence carried by a first position of a first symbol; The maximum number of bits supported for sequence carrying; The maximum number of bits supported by the first symbol; The maximum number of sequences that can be tested at a given time or with a given resource; The number of candidate sequence pools supported; The maximum number of candidate sequences supported for transmission; The capability of supporting relaxation of serving cell measurements; wherein the measurements include: SSB-based measurements, CSI-RS-based measurements, TRS-based measurements, PRS-based measurements, PTRS-based measurements or CRS-based measurements.

26. A first communication device, comprising: The communication module is configured to receive a low-power consumption signal sent by a second communication device; wherein the low-power consumption signal is generated by the second communication device generating a corresponding sequence according to bit information and performing resource mapping on the sequence.

27. A second communication device, comprising: A first generating module, configured to generate a corresponding sequence according to the bit information; A second generating module is configured to perform resource mapping on the sequence to generate a corresponding low power consumption signal; The communication module is configured to send the low power consumption signal to the first communication device.

28. A communication device comprising: 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 implement the method as described in any one of claims 1-21 or 22-25.

29. A storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method according to any one of claims 1 to 21 or 22 to 25.

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