Signal processing method and apparatus, and readable storage medium
By designing a signal processing method suitable for different types of waveforms, using the combination of the first signal and the second signal, the problem of large signal resource overhead in the prior art is solved, and efficient signal processing is achieved.
Patent Information
- Application Number
- PCT/CN2024/123384
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-20
- Filing Date
- 2024-10-08
- Publication Date
- 2025-06-26
AI Technical Summary
It is difficult to design a signal processing method in the prior art that can be applied to different types of waveforms (such as OOK, FSK, OFDM) to reduce signal resource overhead.
By designing a signal processing method, the first signal and the second signal correspond to different types of waveforms by using the combination of the first signal and the second signal, and the length and resource position of the signal are determined through the association relationship between time-frequency resource mapping and encoding modulation information.
It realizes signal processing suitable for different types of waveforms without increasing signal resources, reducing the overhead of signal resources.
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Figure CN2024123384_26062025_PF_FP_ABST
Abstract
Description
Signal processing method, device and readable storage medium
[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on December 20, 2023, with application number 202311767892.3 and application name “A Signal Processing Method, Device and Readable Storage Medium,” the entire contents of which are incorporated by reference into this disclosure. Technical Field
[0002] The present disclosure relates to the field of communication technologies, and in particular to a signal processing method, device, and readable storage medium. Background Art
[0003] Related technologies have proposed the concepts of low power wake-up signal (LP-WUS) and low power wake-up receiver (LP-WUR), thereby reducing the energy consumption of the terminal. In the Radio Resource Control (RRC) idle state (RRC_IDLE mode), when the base station and the terminal have no business transmission, the main radio (MR) with high energy consumption is turned off to enter an ultra-deep sleep state, and the LP-WUR device is turned on to receive the LP-WUS sent by the base station to determine whether it is necessary to wake up the MR and communicate with the base station. This can greatly save the power consumption of the terminal.
[0004] Considering that LP-WUR devices include RF or baseband low-power receivers based on on-off keying (OOK) signal reception, as well as Orthogonal Frequency Division Multiplexing (OFDM) low-power receivers based on OFDM signal reception, both of which have dedicated LP-WUR signal reception waveforms: OOK waveforms and OFDM waveforms. Therefore, in this case, a signal design that is compatible with both different waveforms is required.
[0005] Summary of the Invention
[0006] Embodiments of the present disclosure provide a signal processing method, apparatus, and readable storage medium to reduce signal resource overhead.
[0007] In a first aspect, an embodiment of the present disclosure provides a signal processing method, applied to a terminal, comprising:
[0008] receiving a first signal;
[0009] The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up instruction information, wake-up terminal information, and wake-up terminal group information;
[0010] The first sequence and the second sequence correspond to different types of waveforms.
[0011] In some embodiments, the different types of waveforms include:
[0012] Any two of the Amplitude Shift Key (ASK) waveform, Frequency Shift Key (FSK) waveform, and Orthogonal Frequency Division Multiple Access (OFDM) waveform.
[0013] In some embodiments, receiving the first signal includes:
[0014] determining first information;
[0015] The first signal is received according to the first information, wherein the first information includes one or more of the following:
[0016] generation information of the first signal;
[0017] time domain resource location information of the first signal;
[0018] Frequency domain resource location information of the first signal.
[0019] In some embodiments, the generation information of the first signal includes one or more of the following:
[0020] the length of the first signal;
[0021] transmission bit information of the first signal;
[0022] time-frequency resource mapping information of the first signal;
[0023] time domain resource location information of the first signal;
[0024] Frequency domain resource location information of the first signal;
[0025] the number of terminals indicated by the first signal;
[0026] the number of terminal groups indicated by the first signal;
[0027] the number of paging occasions (POs) associated with the first signal;
[0028] structural information of the first sequence;
[0029] generation information of the first sequence;
[0030] coded modulation information of the first sequence;
[0031] length information of the first sequence;
[0032] information about the manner in which the first sequence is scrambled into the second sequence;
[0033] generated sequence information of the second sequence;
[0034] length information of the second sequence;
[0035] time domain resource location information of the second sequence;
[0036] Frequency domain resource location information of the second sequence;
[0037] waveform information of the second sequence;
[0038] structural information of the second sequence;
[0039] coded modulation information of the second sequence;
[0040] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0041] In some embodiments, the length of the first signal is associated with one or more of the following:
[0042] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the coding and modulation information of the second sequence, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing.
[0043] In some embodiments, the association relationship includes one or more of the following:
[0044] L = L1 × A;
[0045] L = ceiling (A / M) × B;
[0046] L = ceiling (A / M);
[0047] L = ceiling (A / M) × B + C;
[0048] L = ceiling (A / M) + C;
[0049] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to the number of resource elements (RE) or resource blocks (RB) occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits M carried by a single OFDM symbol for the first signal or the second sequence, and one or more of the coding and modulation information of the second sequence, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0050] In some embodiments, the position where the first sequence is scrambled to the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal information carried by the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence; and / or
[0051] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence.
[0052] In some embodiments, the position where the first sequence scrambles the second sequence comprises one or more of the following:
[0053] In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position to which the sequence in which the information bit is 1 is mapped;
[0054] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1;
[0055] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or frequency domain resource position mapped to the sequence with the information bit of 1;
[0056] In the generated sequence of the second sequence, at least one information bit is a sequence position of a1+b1×j, or at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0057] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0058] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carries the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and has information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence with information bits a1+b1×j;
[0059] A sequence position in a preamble field of at least one second sequence that is associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence and whose information bit is 1, or a time domain resource position and / or frequency domain resource position of a sequence mapping where the information bit is a1+b1×j;
[0060] In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j;
[0061] The at least one coded and modulated information bit of the second sequence is a sequence position of a2+b2×j, or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a2+b2×j;
[0062] Where a1, b1, a2, and b2 are arbitrary real numbers.
[0063] In some embodiments, the first signal is generated by one or more of the following methods:
[0064] A position where the bit information of at least one second sequence is 0 is mapped to T zeros, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1;
[0065] At least one position where bit information of the second sequence is 1 is mapped to at least one first sequence;
[0066] At least one position of the second sequence where bit information is a1+b1×j or a2+b2×j is mapped to at least one first sequence;
[0067] At least one position where the bit information of the second sequence is a1+b1×j or a2+b2×j is mapped to the product of at least one a1+b1×j and the first sequence or mapped to the product of at least one a2+b2×j and the first sequence;
[0068] Where a1, b1, a2, and b2 are arbitrary real numbers.
[0069] In some embodiments, the time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes:
[0070] 1 bit of the first signal is mapped to one RE resource; or
[0071] The 1-bit first signal is mapped to P continuous or non-continuous REs or RBs, where P is related to one or more of the number of bits M of the first signal or second sequence carried by a single OFDM symbol, the number of points of the least square (LS) or discrete Fourier transform (DFT) of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0072] In some embodiments, the first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal specific to the first type of receiver;
[0073] The second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal exclusive to the second type of receiver;
[0074] The first type of receiver includes an OFDM receiver, and the second type of receiver includes a baseband frequency receiver or a radio frequency receiver.
[0075] In some embodiments, the first sequence is an orthogonal sequence or a random sequence; or
[0076] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated based on a base sequence through cyclic shift; or
[0077] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated according to a third sequence;
[0078] and / or
[0079] The second sequence is generated according to an ASK signal or an FSK signal; or
[0080] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is generated by coding and modulating a generated sequence; or
[0081] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is a generated sequence.
[0082] In some embodiments, the method further comprises:
[0083] Acquiring the wake-up indication information according to the first signal includes:
[0084] obtaining the first sequence;
[0085] Acquire wake-up indication information carried by the first sequence and / or wake-up indication information carried by the second sequence.
[0086] In some embodiments, one or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information:
[0087] Cell Identifier (Cell ID), User Equipment Identifier (UE ID), Paging Occasion (PO) index, Paging Frame (PF) index, Subgroup index, UE group ID, Area ID.
[0088] In a second aspect, an embodiment of the present disclosure provides a signal processing method, applied to a network device, comprising:
[0089] Sending first information to the terminal;
[0090] The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information;
[0091] The first sequence and the second sequence correspond to different types of waveforms.
[0092] In some embodiments, the different types of waveforms include:
[0093] Any two of the ASK waveform, FSK waveform, and OFDM waveform.
[0094] In some embodiments, the first information includes one or more of the following:
[0095] generation information of the first signal;
[0096] Time domain resource location information of the first signal;
[0097] Frequency domain resource location information of the first signal.
[0098] In some embodiments, the generation information of the first signal includes one or more of the following:
[0099] the length of the first signal;
[0100] transmission bit information of the first signal;
[0101] time-frequency resource mapping information of the first signal;
[0102] Time domain resource location information of the first signal;
[0103] Frequency domain resource location information of the first signal;
[0104] the number of terminals indicated by the first signal;
[0105] the number of terminal groups indicated by the first signal;
[0106] the number of POs associated with the first signal;
[0107] structural information of the first sequence;
[0108] generation information of the first sequence;
[0109] the length of the first sequence;
[0110] coded modulation information of the first sequence;
[0111] information about the manner in which the first sequence is scrambled into the second sequence;
[0112] generated sequence information of the second sequence;
[0113] time domain resource location information of the second sequence;
[0114] Frequency domain resource location information of the second sequence;
[0115] waveform information of the second sequence;
[0116] structural information of the second sequence;
[0117] the length of the second sequence;
[0118] coded modulation information of the second sequence;
[0119] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0120] In some embodiments, the length of the first signal is associated with one or more of the following:
[0121] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing; or
[0122] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence; or,
[0123] The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, where the mapping mode includes:
[0124] 1 bit of the first signal is mapped to one RE resource; or
[0125] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0126] In some embodiments, the association relationship includes one or more of the following:
[0127] L = L1 × A;
[0128] L = ceiling (A / M) × B;
[0129] L = ceiling (A / M);
[0130] L = ceiling (A / M) × B + C;
[0131] L = ceiling (A / M) + C;
[0132] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to one or more of the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, and the number of bits of the first signal or the second sequence carried by a single OFDM symbol, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0133] In a third aspect, an embodiment of the present disclosure provides a signal processing device, applied to a terminal, comprising: a memory, a transceiver, and a processor:
[0134] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
[0135] receiving a first signal;
[0136] The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up instruction information, wake-up terminal information, and wake-up terminal group information;
[0137] The first sequence and the second sequence correspond to different types of waveforms.
[0138] In some embodiments, the different types of waveforms include:
[0139] Any two of the ASK waveform, FSK waveform, and OFDM waveform.
[0140] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:
[0141] determining first information;
[0142] The first signal is received according to the first information, wherein the first information includes one or more of the following:
[0143] generation information of the first signal;
[0144] time domain resource location information of the first signal;
[0145] Frequency domain resource location information of the first signal.
[0146] In some embodiments, the generation information of the first signal includes one or more of the following:
[0147] the length of the first signal;
[0148] transmission bit information of the first signal;
[0149] time-frequency resource mapping information of the first signal;
[0150] time domain resource location information of the first signal;
[0151] Frequency domain resource location information of the first signal;
[0152] the number of terminals indicated by the first signal;
[0153] the number of terminal groups indicated by the first signal;
[0154] the number of POs associated with the first signal;
[0155] structural information of the first sequence;
[0156] generation information of the first sequence;
[0157] coded modulation information of the first sequence;
[0158] length information of the first sequence;
[0159] information about the manner in which the first sequence is scrambled into the second sequence;
[0160] generated sequence information of the second sequence;
[0161] length information of the second sequence;
[0162] time domain resource location information of the second sequence;
[0163] Frequency domain resource location information of the second sequence;
[0164] waveform information of the second sequence;
[0165] structural information of the second sequence;
[0166] coded modulation information of the second sequence;
[0167] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0168] In some embodiments, the length of the first signal is associated with one or more of the following:
[0169] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the coding and modulation information of the second sequence, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing.
[0170] In some embodiments, the association relationship includes one or more of the following:
[0171] L = L1 × A;
[0172] L = ceiling (A / M) × B;
[0173] L = ceiling (A / M);
[0174] L = ceiling (A / M) × B + C;
[0175] L = ceiling (A / M) + C;
[0176] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits of the first signal or the second sequence carried by a single OFDM symbol, and one or more of the coding and modulation information of the second sequence, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0177] In some embodiments, the position where the first sequence is scrambled to the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal information carried by the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence; and / or
[0178] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence.
[0179] In some embodiments, the position where the first sequence scrambles the second sequence comprises one or more of the following:
[0180] In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position to which the sequence in which the information bit is 1 is mapped;
[0181] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1;
[0182] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or frequency domain resource position mapped to the sequence with the information bit of 1;
[0183] In the generated sequence of the second sequence, at least one information bit is a sequence position of a1+b1×j, or at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0184] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0185] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carries the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and has information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence with information bits a1+b1×j;
[0186] In the preamble field of at least one second sequence, a sequence position where the information bit is 1 and is associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence, or a time domain resource position and / or frequency domain resource position where the information bit is mapped to a sequence of a1+b1×j;
[0187] In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j;
[0188] The at least one coded and modulated information bit of the second sequence is a sequence position of a2+b2×j, or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a2+b2×j;
[0189] Where a1, b1, a2, and b2 are arbitrary real numbers.
[0190] In some embodiments, the first signal is generated by one or more of the following methods:
[0191] A position where the bit information of at least one second sequence is 0 is mapped to T zeros, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1;
[0192] At least one position where bit information of the second sequence is 1 is mapped to at least one first sequence;
[0193] At least one position of the second sequence where bit information is a1+b1×j or a2+b2×j is mapped to at least one first sequence;
[0194] At least one position where the bit information of the second sequence is a1+b1×j or a2+b2×j is mapped to the product of at least one a1+b1×j and the first sequence or mapped to the product of at least one a2+b2×j and the first sequence;
[0195] Among them, a1, b1, a2, and b2 are arbitrary real numbers.
[0196] In some embodiments, the time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes:
[0197] 1 bit of the first signal is mapped to one RE resource; or
[0198] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0199] In some embodiments, the first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal specific to the first type of receiver;
[0200] The second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal exclusive to the second type of receiver;
[0201] The first type of receiver includes an OFDM receiver, and the second type of receiver includes a baseband frequency receiver or a radio frequency receiver.
[0202] In some embodiments, the first sequence is an orthogonal sequence or a random sequence; or
[0203] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated based on a base sequence through cyclic shift; or
[0204] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated according to a third sequence;
[0205] and / or
[0206] The second sequence is generated according to an ASK signal or an FSK signal; or
[0207] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is generated by coding and modulating a generated sequence; or
[0208] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is a generated sequence.
[0209] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations: obtaining the wake-up indication information according to the first signal, including:
[0210] obtaining the first sequence;
[0211] Acquire wake-up indication information carried by the first sequence and / or wake-up indication information carried by the second sequence.
[0212] In some embodiments, one or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information:
[0213] Cell ID, terminal ID, paging opportunity index PO index, paging frame index PF index, subgroup index, terminal group ID, area ID.
[0214] In a fourth aspect, an embodiment of the present disclosure provides a signal processing device, applied to a network device, comprising: a memory, a transceiver, and a processor:
[0215] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
[0216] Sending first information to the terminal;
[0217] The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information;
[0218] The first sequence and the second sequence correspond to different types of waveforms.
[0219] In some embodiments, the different types of waveforms include:
[0220] Any two of the ASK waveform, FSK waveform, and OFDM waveform.
[0221] In some embodiments, the first information includes one or more of the following:
[0222] generation information of the first signal;
[0223] Time domain resource location information of the first signal;
[0224] Frequency domain resource location information of the first signal.
[0225] In some embodiments, the generation information of the first signal includes one or more of the following:
[0226] the length of the first signal;
[0227] transmission bit information of the first signal;
[0228] time-frequency resource mapping information of the first signal;
[0229] Time domain resource location information of the first signal;
[0230] Frequency domain resource location information of the first signal;
[0231] the number of terminals indicated by the first signal;
[0232] the number of terminal groups indicated by the first signal;
[0233] the number of POs associated with the first signal;
[0234] structural information of the first sequence;
[0235] generation information of the first sequence;
[0236] the length of the first sequence;
[0237] coded modulation information of the first sequence;
[0238] information about the manner in which the first sequence is scrambled into the second sequence;
[0239] generated sequence information of the second sequence;
[0240] time domain resource location information of the second sequence;
[0241] Frequency domain resource location information of the second sequence;
[0242] waveform information of the second sequence;
[0243] structural information of the second sequence;
[0244] the length of the second sequence;
[0245] coded modulation information of the second sequence;
[0246] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0247] In some embodiments, the length of the first signal is associated with one or more of the following:
[0248] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing; or
[0249] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence; or
[0250] The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, where the mapping mode includes:
[0251] 1 bit of the first signal is mapped to one RE resource; or
[0252] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0253] In some embodiments, the association relationship includes one or more of the following:
[0254] L = L1 × A;
[0255] L = ceiling (A / M) × B;
[0256] L = ceiling (A / M);
[0257] L = ceiling (A / M) × B + C;
[0258] L = ceiling (A / M) + C;
[0259] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to one or more of the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, and the number of bits of the first signal or the second sequence carried by a single OFDM symbol, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0260] In a fifth aspect, an embodiment of the present disclosure provides a signal processing device, applied to a terminal, including:
[0261] A first receiving unit, configured to receive a first signal;
[0262] The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up instruction information, wake-up terminal information, and wake-up terminal group information;
[0263] The first sequence and the second sequence correspond to different types of waveforms.
[0264] In a sixth aspect, an embodiment of the present disclosure provides a signal processing device, applied to a server, comprising:
[0265] A first sending unit, configured to send first information to a terminal;
[0266] The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information;
[0267] The first sequence and the second sequence correspond to different types of waveforms.
[0268] In a seventh aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the signal processing method described above are implemented.
[0269] In an embodiment of the present disclosure, the first signal includes a first sequence and a second sequence, the first sequence and the second sequence respectively correspond to different types of waveforms and are used to carry wake-up indication information of the same terminal or the same terminal group. Therefore, wake-up indication information of different waveforms can be carried by the first signal, which can reduce signal resource overhead. BRIEF DESCRIPTION OF THE DRAWINGS
[0270] FIG1 is a flowchart of a signal processing method according to an embodiment of the present disclosure;
[0271] FIG2 is a second flowchart of the signal processing method provided by an embodiment of the present disclosure;
[0272] FIG3 is a schematic diagram of one of the methods for generating a first signal provided by an embodiment of the present disclosure;
[0273] FIG4 is a second schematic diagram of a method for generating a first signal provided by an embodiment of the present disclosure;
[0274] FIG5 is a third schematic diagram of a method for generating a first signal provided in an embodiment of the present disclosure;
[0275] FIG6 is a fourth schematic diagram of a method for generating a first signal provided by an embodiment of the present disclosure;
[0276] FIG7 is a fifth schematic diagram of a method for generating a first signal provided by an embodiment of the present disclosure;
[0277] FIG8 is a sixth schematic diagram of a method for generating a first signal provided by an embodiment of the present disclosure;
[0278] FIG9 is a seventh schematic diagram of a method for generating a first signal provided in an embodiment of the present disclosure;
[0279] FIG10 is an eighth schematic diagram of a method for generating a first signal provided in an embodiment of the present disclosure;
[0280] FIG11 is a ninth schematic diagram of a method for generating a first signal provided by an embodiment of the present disclosure;
[0281] FIG12 is a tenth schematic diagram of a method for generating a first signal provided by an embodiment of the present disclosure;
[0282] FIG13 is an eleventh schematic diagram of a method for generating a first signal provided by an embodiment of the present disclosure;
[0283] FIG14 is a structural diagram of a signal processing device according to an embodiment of the present disclosure;
[0284] FIG15 is a second structural diagram of a signal processing device provided by an embodiment of the present disclosure;
[0285] FIG16 is a third structural diagram of a signal processing device provided in an embodiment of the present disclosure;
[0286] FIG17 is a fourth structural diagram of the signal processing device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0287] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.
[0288] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.
[0289] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.
[0290] Embodiments of the present disclosure provide a signal processing method and apparatus to reduce signal resource overhead.
[0291] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.
[0292] Referring to FIG. 1 , FIG. 1 is a flowchart of a signal processing method provided by an embodiment of the present disclosure, which is applied to a terminal and includes the following steps:
[0293] Step 101: Receive a first signal.
[0294] The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information for the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information, and the first sequence and the second sequence correspond to different types of waveforms. For example, the first signal may include one second sequence and K (K is an integer and K ≥ 1) first sequences.
[0295] Different types of waveforms may take different forms depending on the specific implementation scenario. For example, the different types of waveforms include any two of an ASK waveform, an FSK waveform, and an OFDM waveform. For example, an ASK waveform and an FSK waveform, an ASK waveform and an OFDM waveform, an FSK waveform and an OFDM waveform, etc. Of course, as technology develops, the meanings of the different types of waveforms may also be expanded accordingly.
[0296] In some embodiments, the first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal specific to an OFDM receiver; the second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal specific to a baseband or RF receiver (e.g., an ASK signal, an FSK signal).
[0297] In some embodiments, the first sequence is an orthogonal sequence or a random sequence, and the sequence is associated with at least one of Cell ID, UE ID, PO index, PF index, subgroup index, UE group ID, Area ID, and modulation mode. Alternatively, the first sequence is generated based on a base sequence by cyclic shift. For example, the first sequence is generated based on a base sequence by cyclic shifting Y bits, and the value of Y is related to one or more of Cell ID, UE ID, PO index, PF index, subgroup index, UE (group) ID, and Area ID; the base sequence can be a gold sequence, a ZC sequence, an m sequence, or one of other predefined sequences. Alternatively, the first sequence is generated based on a third sequence. The third sequence can be any one of a gold sequence, an m sequence, and a ZC sequence. The initial value cinit of the third sequence is related to one or more of Cell ID, UE ID, PO index, PF index, subgroup index, UE (group) ID, Area ID, time domain resource location, frequency domain resource location information, and configuration information of the network device.
[0298] The second sequence is generated based on an ASK signal or an FSK signal, or the second sequence is generated by coding and modulating the generated sequence, or the second sequence is the generated sequence. For example, if the generated sequence does not undergo any coding and modulation, the generated sequence can be used as the second generated sequence.
[0299] In this step, the terminal may determine first information and receive the first signal based on the first information, wherein the first information is used to receive the first signal. The first information may be predefined based on a protocol, or may be notified to the terminal by a network device based on at least one of radio resource control (RRC) signaling, system information block (SIB) signaling, downlink data / control signal indication / activation (or deactivation).
[0300] In some embodiments, the first information includes one or more of the following:
[0301] (1) Generation information of the first signal:
[0302] The generation information of the first signal includes one or more of the following:
[0303] the length of the first signal;
[0304] transmission bit information of the first signal;
[0305] time-frequency resource mapping information of the first signal;
[0306] time domain resource location information of the first signal;
[0307] Frequency domain resource location information of the first signal;
[0308] the number of terminals indicated by the first signal;
[0309] the number of terminal groups indicated by the first signal;
[0310] the number of POs associated with the first signal;
[0311] structural information of the first sequence;
[0312] generation information of the first sequence;
[0313] coded modulation information of the first sequence;
[0314] length information of the first sequence;
[0315] information about the manner in which the first sequence is scrambled into the second sequence;
[0316] generated sequence information of the second sequence;
[0317] length information of the second sequence;
[0318] time domain resource location information of the second sequence;
[0319] Frequency domain resource location information of the second sequence;
[0320] The waveform information of the second sequence, such as OOK-1, OOK-4, OOK-2, etc.;
[0321] structural information of the second sequence;
[0322] coded modulation information of the second sequence;
[0323] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0324] The length of the first signal is associated with one or more of the following:
[0325] The length of the first sequence (L2), the length of the second sequence (L1), the bandwidth (W) of the first signal (which may be the number of REs, the number of RBs, etc.), the coding modulation information of the second sequence, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing.
[0326] The association relationship includes one or more of the following:
[0327] L = L1 × A;
[0328] L = ceiling (A / M) × B;
[0329] L = ceiling (A / M);
[0330] L = ceiling (A / M) × B + C;
[0331] L = ceiling (A / M) + C;
[0332] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits M carried by a single OFDM symbol for the first signal or the second sequence, and one or more of the coding and modulation information of the second sequence, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0333] The position where the first sequence scrambles the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence.
[0334] Specifically, the position where the first sequence is scrambled with the second sequence includes one or more of the following:
[0335] In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position to which the sequence in which the information bit is 1 is mapped, wherein the specific mapped bit or time domain resource position and / or frequency domain resource position may be related to the wake-up information carried by the first sequence, or may be based on implementation (e.g., implementation of a network device);
[0336] a sequence position in which at least one information bit is 1 in the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1, wherein the specific mapped bit or time domain resource position and / or frequency domain resource position may be related to the wake-up information carried by the first sequence, or may be based on implementation (such as implementation of a network device);
[0337] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or frequency domain resource position mapped to the sequence with the information bit of 1;
[0338] In the generated sequence of the second sequence, at least one information bit is a sequence of a1+b1×j (information 1 is modulated as a1+b1×j), or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0339] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0340] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having information bits a1+b1×j (information 1 modulated as a1+b1×j), or a time domain resource position and / or frequency domain resource position mapped to the sequence with the information bit being 1;
[0341] In the Preamble field of at least one second sequence, a sequence that is associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence and whose information bit is 1, or a time domain resource position and / or frequency domain resource position mapped to a sequence of a1+b1×j in which the information bit is mapped;
[0342] In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j;
[0343] At least one coded and modulated information bit of the second sequence is a sequence of a2+b2×j, or the information bits are a time domain resource position and / or frequency domain resource position mapped to the sequence of a2+b2×j;
[0344] Where a1, b1, a2, and b2 are arbitrary real numbers.
[0345] Here, “association” can be understood in multiple meanings. For example, it can be understood that there is a certain correspondence between multiple pieces of information, or that one piece of information can be determined by other information.
[0346] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of the generated sequence of the second sequence, and the bit information of the first sequence.
[0347] In an embodiment of the present disclosure, the first signal is generated by one or more of the following methods:
[0348] A position where the bit information of at least one second sequence is 0 is mapped to T zeros, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1;
[0349] At least one position where bit information of the second sequence is 1 is mapped to at least one first sequence;
[0350] At least one position of the second sequence where bit information is a1+b1×j or a2+b2×j is mapped to at least one first sequence;
[0351] The position where the bit information of at least one of the second sequences is a1+b1×j or a2+b2×j is mapped to the product of at least one a1+b1×j and the first sequence ((a1+b1×j)×first sequence) or the product of at least one a2+b2×j and the first sequence ((a2+b2×j)×first sequence);
[0352] Among them, a1, b1, a2, and b2 are arbitrary real numbers.
[0353] The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes:
[0354] 1 bit of the first signal is mapped to one RE resource; or
[0355] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits M of the first signal or second sequence carried by a single OFDM symbol, the number of points of the LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0356] The coding modulation mode includes:
[0357] Digital encoding method: Manchester encoding, differential encoding;
[0358] Phase / amplitude modulation: Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), Least Square (LS), Discrete Fourier Transform (DFT), and other predefined modulation methods (for example, information 0 is modulated as a1+b1×j; information 1 is modulated as a2+b2×j).
[0359] (2) the time domain resource location of the first signal;
[0360] (3) Frequency domain resource location information of the first signal.
[0361] In an embodiment of the present disclosure, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information. The first sequence and the second sequence correspond to different types of waveforms. Therefore, wake-up indication information of different waveforms can be carried by the first signal, which can reduce signal resource overhead.
[0362] In some embodiments, based on the above embodiments, the terminal may further obtain the wake-up indication information according to the first signal. Specifically, the terminal may obtain the first sequence and obtain the wake-up indication information carried by the first sequence and / or the wake-up indication information carried by the second sequence.
[0363] When acquiring the first sequence, the terminal may determine the scrambled position of the first sequence within the second sequence and obtain the first sequence based on the scrambled position. The method for determining the scrambled position may refer to the description of the preceding embodiment. Alternatively, the terminal may acquire the first sequence through blind detection.
[0364] In an embodiment of the present disclosure, one or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information:
[0365] Cell ID, UE ID, PO index, PF index, subgroup index, terminal group ID, Area ID.
[0366] Referring to FIG. 2 , FIG. 2 is a flowchart of a signal processing method provided by an embodiment of the present disclosure, which is applied to a network device and includes the following steps:
[0367] Step 201: Send first information to a terminal.
[0368] Among them, the first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, wake-up terminal group information, the first sequence and the second sequence correspond to different types of waveforms.
[0369] The different types of waveforms may have different forms according to different specific implementation scenarios. For example, the different types of waveforms include any two of an ASK waveform, an FSK waveform, and an OFDM waveform.
[0370] The meanings of the first information and the first signal may refer to the description of the aforementioned method embodiment.
[0371] The first information may be predefined based on a protocol, or may be notified to the terminal by the network device based on at least one of radio resource control RRC signaling, SIB X signaling, and downlink data / control signal indication / activation (or deactivation).
[0372] In an embodiment of the present disclosure, the first signal includes a first sequence and a second sequence, the first sequence and the second sequence respectively correspond to different types of waveforms and are used to carry wake-up indication information of the same terminal or the same terminal group. Therefore, wake-up indication information of different waveforms can be carried by the first signal, which can reduce signal resource overhead.
[0373] The following describes the specific implementation process of the embodiments of the present disclosure in combination with different embodiments. The first signal is described by taking the LP-WUS signal as an example, and the network device is described by taking a base station as an example.
[0374] In the following embodiments, a wake-up signal is generated jointly based on an ASK / FSK waveform and an OFDM waveform, and the two waveforms carry the same wake-up indication information based on the time-frequency resource location and / or signal generation information, and are used to wake up at least one LP-WUR.
[0375] In the first embodiment of the present disclosure, the LP-WUS signal is generated by an OOK-1 signal and K (K≥1) OFDM symbols.
[0376] In one example, assuming that the LP-WUS occupies 7 REs in the frequency domain, one LP-WUS can simultaneously indicate that two subgroups are awake or asleep. The base station needs to wake up the two subgroups at the same time, generate a 2-bit OOK-1 [1 1] signal, and then use Manchester encoding with a code rate of 1 / 2 to obtain a 4-bit OOK-1 transmission sequence [0 1 0 1], thereby generating a 7-bit OFDM sequence (two different OFDM sequences can also be generated based on the subgroup index). In this case, the LP-WUS signal generation method includes:
[0377] Generation method 1: Referring to Figure 3, the OOK-1 transmission sequence and the OFDM sequence are combined to generate the WUS transmission sequence, which is then mapped to time-frequency resources to obtain the final transmission signal. The rules for generating the WUS signal from the OOK-1 transmission sequence and the OFDM sequence are one or more of the following:
[0378] 1) The bit position of 1-bit OOK=0 is expanded to 7 bits of 0;
[0379] 2) The bit position of 1-bit OOK=1 is expanded into a 7-bit OFDM sequence carrying the same wakeup subgroup index;
[0380] Based on the above rules, a 28-bit LP-WUS transmit sequence is derived, which, after time-frequency resource mapping, occupies four OFDM symbols. The OOK receiver determines the OOK-1 transmit bit sequence by detecting the energy of each OFDM symbol. The OFDM receiver determines whether to wake up based on the position of the received OFDM sequence. For example, a terminal in subgroup #0 wakes up if it receives the OFDM sequence in the second OFDM symbol; otherwise, it goes into sleep mode. Similarly, a terminal in subgroup #1 wakes up if it receives the OFDM sequence in the fourth OFDM symbol; otherwise, it goes into sleep mode.
[0381] Generation method 2: In conjunction with Figure 4, the OFDM sequence is scrambled on specific resources after OOK-1 time-frequency mapping. The scrambling rules of the OFDM sequence are one or more of the following:
[0382] 1) The OFDM signal is not mapped to the time-frequency resource position where 1 bit OOK = 0;
[0383] 2) A 7-bit OFDM sequence carrying the same wake-up subgroup index is mapped to the 7 RE resource positions mapped with 1-bit OOK=1;
[0384] Based on the above rules, a joint LP-WUS signal with a time domain duration of 4 OFDM symbols is obtained. The OOK receiver determines the transmitted bit sequence of OOK-1 by detecting the energy of each OFDM symbol. The OFDM receiver determines whether to wake up based on the position of the received OFDM sequence. For example, the terminal in subgroup #0 wakes up if it receives the OFDM sequence in the second OFDM symbol; otherwise, it goes into sleep mode. Similarly, the terminal in subgroup #1 wakes up if it receives the OFDM sequence in the fourth OFDM symbol; otherwise, it goes into sleep mode.
[0385] In one example, assuming that LP-WUS occupies 7 REs in the frequency domain, one LP-WUS signal can simultaneously indicate the wakeup / sleep status of two subgroups. The base station only needs to wake up the terminals in subgroup #0 and put the terminals in subgroup #1 into sleep mode. The generated 2-bit OOK-1 [1 0] signal is then Manchester-encoded with a 1 / 2 code rate to obtain a 4-bit OOK-1 transmission sequence [0 1 1 0], generating a 7-bit OFDM sequence. In this case, the LP-WUS signal generation method includes:
[0386] Generation method 1: As shown in Figure 5, the OOK-1 transmission sequence and the OFDM sequence are combined to generate the LP-WUS transmission sequence. After that, the final transmission signal is obtained through time-frequency resource mapping. The rules for generating the WUS signal from the OOK-1 transmission sequence and the OFDM sequence are one or more of the following:
[0387] 1) The bit position of 1-bit OOK=0 is expanded to 7 bits of 0;
[0388] 2) The bit position of 1-bit OOK=1 is expanded into a 7-bit OFDM sequence carrying the same wakeup subgroup index;
[0389] Based on the above rules, a 28-bit LP-WUS transmit sequence is derived, which, after time-frequency resource mapping, occupies four OFDM symbols. The OOK receiver determines the OOK-1 transmit bit sequence by detecting the energy of each OFDM symbol. The OFDM receiver determines whether to wake up based on the position of the received OFDM sequence. For example, a terminal in subgroup #0 wakes up if it receives the OFDM sequence in the second OFDM symbol; otherwise, it goes dormant. Similarly, a terminal in subgroup #1 remains dormant if it does not receive the OFDM sequence in the fourth OFDM symbol.
[0390] Generation method 2: As shown in Figure 6, the OFDM sequence is scrambled on specific resources after OOK-1 time-frequency mapping. The scrambling rules of the OFDM sequence are one or more of the following:
[0391] 1) The OFDM signal is not mapped to the time-frequency resource position where 1 bit OOK = 0;
[0392] 2) The 7-bit OFDM wakeup subgroup #0 sequence carrying the same wakeup subgroup index is mapped to the 7 RE resource positions mapped with 1-bit OOK=1;
[0393] Based on the above rules, a joint LP-WUS signal with a time domain duration of four OFDM symbols is generated. The OOK receiver determines the OOK-1 transmitted bit sequence by detecting the energy of each OFDM symbol. The OFDM receiver determines whether to wake up based on the position of the received OFDM sequence. For example, a terminal in subgroup #0 wakes up if it receives the OFDM sequence in the second OFDM symbol; otherwise, it goes dormant. Similarly, a terminal in subgroup #1 remains dormant if it does not receive the OFDM sequence in the fourth OFDM symbol.
[0394] In this embodiment, the specific process is as follows:
[0395] S1. The base station sends the configuration information of the LP-WUS signal generated by the ASK / FSK signal and K (K>=1) sequence OFDM signals to at least one terminal to confirm the reception information of the LP-WUS signal. The base station sends the LP-WUS signal to wake up at least one LP-WUR based on the transmission requirements of the terminal.
[0396] Among them, ASK / FSK is the exclusive receiving signal of the RF or baseband receiver. ASK carries different information based on the different modulation amplitudes of the signal, which can include OOK signals (the modulation amplitude is only 0 and 1); FSK carries different information based on different carrier frequencies.
[0397] The LP-WUS configuration information includes at least one of the following:
[0398] (1) LP-WUS signal generation information, including OOK signal generation information and OFDM signal generation information:
[0399] OOK signal generation sequence information;
[0400] Waveform information of the OOK signal: In this embodiment, the waveform of the OOK is OOK-1;
[0401] The number of bits of the LP-WUS signal / OOK signal carried by a single OFDM symbol is M: OOK-1 corresponds to M=1;
[0402] Structural information of OOK signal;
[0403] Structural information of OFDM signals;
[0404] OFDM signal generation information;
[0405] Coded modulation information of OFDM signal;
[0406] Information on how OFDM signals are scrambled with OOK;
[0407] Time-frequency resource mapping information of OFDM signals;
[0408] (2) The time-frequency resource location information sent by the LP-WUS signal.
[0409] The coding modulation mode includes:
[0410] (1) Digital coding method: Manchester coding, differential coding;
[0411] (2) Phase / amplitude modulation: Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), Least Square (LS), Discrete Fourier Transform (DFT), and other predefined modulation methods (for example, information 0 is modulated as a1+b1×j; information 1 is modulated as a2+b2×j);
[0412] The number of OFDM signals scrambled by the OOK signal may be predefined by the protocol, configured by the base station, or dynamically determined by the base station based on the number of awakened terminals (groups) dedicated to the OFDM signal.
[0413] The configuration information of the LP-WUS signal can be notified to the terminal based on at least one of protocol pre-definition, radio resource control (RRC) signaling, system information block (SIB) X signaling, downlink data / control signal indication / activation (or deactivation).
[0414] S2. The terminal obtains configuration information of the LP-WUS signal, and determines a receiving time-frequency resource position of the LP-WUS and / or sequence information generated by the LP-WUS signal.
[0415] The LP-WUS signal is jointly generated by an OOK signal and K OFDM signals (used to simultaneously wake up the terminal groups associated with K OFDM sequences and the terminal groups associated with the OOK signals), and the generated information includes information of the OOK signal and / or information of the OFDM signal.
[0416] The generation sequence of the OOK signal is related to the structure of the OOK signal and the coding modulation information of the OOK signal. The signal structure may include at least one of the following:
[0417] Preamble field: used to determine the starting reception position and / or time-frequency synchronization information of the wake-up indication information field.
[0418] The Preamble field may be a UE-group specific (UE group exclusive) or Cell-specific (cell exclusive) sequence or signal.
[0419] Wake-up indication information field: indicates that at least one terminal (group) is to wake up. The wake-up information can be indicated in one of the following ways:
[0420] (1) Bitmap mode: Each bit of the information field corresponds to one or more terminals, and can indicate the wake-up of multiple terminals (groups) at the same time. 0 means sleep, and 1 means wake-up.
[0421] (2) Codepoint mode: This information field includes multiple information blocks, each of which carries the index information of one or a group of wake-up terminals.
[0422] (3) Multi-level sequence indication method:
[0423] Generate at least one level of wake-up indication information based on bitmap, codepoint, and specific sequence, where the specific sequence can be generated by at least one sequence format of m sequence, gold sequence, Hardmard sequence, ZC sequence, and PN sequence; the indication level can include one or more of PO index, PF index, subgroup index, UE ID, Cell ID, UE (group) ID, and Area ID;
[0424] Cyclic Redundancy Check (CRC) check field: has a fixed formula check relationship with the wake-up indication information field, and is used to determine whether the indication information field is received correctly. The formula can be agreed upon by the protocol.
[0425] The coding modulation mode includes:
[0426] 1) Digital encoding method: Manchester encoding, differential encoding or other digital encoding methods;
[0427] 2) Phase / amplitude modulation: BPSK, QPSK, LS, DFT, and other predefined modulation methods (for example, information 1 is modulated as a1+b1×j; information 0 is modulated as a2+b2×j).
[0428] The OFDM signal may be an orthogonal sequence or other random sequence, and the sequence is associated with at least one of Cell ID, UE ID, PO index, PF index, subgroup index, UE ID, Cell ID, UE (group) ID, Area ID, and modulation mode. The relationship may be predefined based on the protocol or calculated based on a formula, and the formula calculation method may include at least one of the following:
[0429] 1) The index of the OFDM sequence in the OFDM sequence set is determined by X, where X can be any one of Cell ID, UE ID, PO index, PF index, subgroup index, UE (group) ID, and Area ID. The specific determination relationship can be:
[0430] The sequence in the OFDM sequence set may include at least one orthogonal sequence, which may be a Hardmard sequence, a ZC sequence, or a sequence agreed upon by other protocols;
[0431] The index of the sequence in the OFDM sequence set = X mod (P), where P is the total number of available OFDM sequences, P ≥ 1;
[0432] The index of the sequence in the OFDM sequence set = X;
[0433] The index of a sequence in the OFDM sequence set is f(X), where f(X) is a function related to X and is specified by the protocol.
[0434] In particular, if the sequence set is agreed upon through a protocol table, the index of the first sequence (OFDM sequence) in the set is the row / column index in the table, as shown in Table 1 below:
[0435] Table 1: OFDM sequence enumeration table
[0436] 2) The OFDM signal is generated by cyclically shifting the base sequence by Y bits. The value of Y is related to one or more of the following: Cell ID, UE ID, PO index, PF index, subgroup index, UE (group) ID, and Area ID:
[0437] The base sequence may be a gold sequence, a ZC sequence, an m sequence, or any other predefined sequence;
[0438] Wherein, Y=Y1mod(Q), where Y1 can be one or more of Cell ID, UE ID, PO index, PF index, subgroup index, UE (group) ID, and Area ID; Q is the total number of cyclic shift bits, which can be agreed upon by the protocol or obtained from base station configuration information;
[0439] Wherein, Y=Y1, Y1 can be one or more of Cell ID, UE ID, PO index, PF index, subgroup index, UE (group) ID, and Area ID;
[0440] Wherein, Y=f(Y1), f(Y1) is a function related to Y1, and the function is agreed upon by the protocol;
[0441] 3) The OFDM signal is generated by the third sequence and the initial value of the third sequence. The third sequence can be any one of the gold sequence, m sequence, and ZC sequence. The initial value of the third sequence is c init It is related to one or more of the following: Cell ID, UE ID, PO index, PF index, subgroup index, UE (group) ID, Area ID, time-frequency resource location information, and base station configuration information.
[0442] The formula for determining the initial value of the third signal may satisfy one of the following:
[0443] c init =(A×(f(B)×f(C)+D))mod(F);
[0444] c init =(A×(f(B)×f(C)+C))mod(F);
[0445] c init =(A×(f(B)×f(C)+C+D))mod(F);
[0446] c init =(A×(f(B)×f(C)+D+E))mod(F);
[0447] Among them, A and F can be fixed values agreed upon by the protocol or base station configuration values, such as A = a b ,F=c d, a, b, c, and d can be determined based on protocol agreements or configuration parameters. f(B) is a function of the signal's time-frequency resource location parameter, B, which can include one or more of the following: the radio frame number, the slot number within the radio frame, the number of OFDM symbols within the slot, the OFDM symbol number within the slot, and the carrier spacing. f(C) and f(D) are preconfigured parameters of the base station and can be related to the Cell ID or fixed.
[0448] Here are some examples:
[0449] c init =(2 b ×((14×n+l+1)×(2×n ID +1)+n ID ))mod2 c .
[0450] In the above formula, b and c can be predefined by the protocol or configured on the base station side, and n is related to the time-frequency resource location of the signal. For example, n is the sequence of the first OFDM symbol occupied by the signal in the time slot. ID It can be at least one of base station pre-configuration, UE_ID, PO index, PF index, subgroup ID, Cell ID, UE (group) ID, and Area ID.
[0451] 4) The OFDM signal can be obtained by modulating a signal generated by one of the three generation methods mentioned above, wherein the modulation method includes: BPSK, QPSK, 64-bit Quadrature Amplitude Modulation (QAM), and any other multi-level modulation technology.
[0452] The LP-WUS consists of an OOK signal and K OFDM signals (which also carry wake-up information for the terminal groups associated with the K OFDM signals). The LP-WUS generation information includes at least one of the following: the length of the LP-WUS signal, the specific bit position of the OFDM signal scrambled with the OOK signal, the bit information transmitted by the LP-WUS, and the time-frequency resource mapping relationship of the LP-WUS signal:
[0453] 41) The signal length L of the LP-WUS is related to at least one of the OOK signal transmission sequence length L1, the coding modulation information of the OOK signal (e.g., coding rate, modulation order), the OOK signal generation sequence length L0, the length L2 of the OFDM signal, the frequency domain bandwidth W occupied by the LP-WUS (the resource granularity can be the number of REs or RBs), and the number of bits M of the LP-WUS / OOK signal carried by a single OFDM symbol with a single subcarrier interval. The specific relationship can be one of the following:
[0454] L = L1 × A;
[0455] L = L0 × A;
[0456] L = L1 × A + B;
[0457] L = L0 × A + C;
[0458] Among them, A, B, and C are related to at least one of the number of RE / RBs occupied by LP-WUS in the frequency domain, the bandwidth size, the subcarrier spacing, the length of the OOK sequence, the number of bits M of the LP-WUS / OOK signal carried by a single OFDM symbol, and the coding and modulation information of the OOK signal (for example, the coding rate, the modulation order).
[0459] Here are some examples:
[0460] The OOK signal format is OOK-1, M=1, and the bandwidth occupied by LP-WUR is W RBs. Then, the L1-bit OOK-1 signal and the L2-bit OFDM signal generate an LP-WUS signal with a length of L=L1×W×12 bits. (If the bandwidth is W REs, L=L1×W bits).
[0461] 42) The scrambling position of the OFDM signal in LP-WUS is related to at least one of the bit information of the OOK signal, the bit information of the OFDM signal, and the information field of the OOK signal. The specific scrambling position can be:
[0462] 421) The position of a sequence (or mapped time-frequency resource) in which any information bit is 1 in the wake-up information field of the OOK signal;
[0463] 422) The position of the sequence (or mapped time-frequency resource) in the wake-up information field of the OOK signal that carries the same information as the first sequence and whose information bit is 1, taking Figure 7 as an example:
[0464] The OOK signal consists of a Preamble field, a wake-up indication field, and a CRC check field. The wake-up indication field uses a bitmap to simultaneously indicate whether eight terminal groups are awake or asleep. For example, 11000000 - terminal groups 0 and 1 are awake, and terminal groups 2-7 are asleep. At the same time, an OFDM signal carrying wake-up groups 0 and 1 is generated (for details on the generation method, see the aforementioned OFDM sequence generation method. The two sequences can be exactly the same, but the mapped time-frequency resource locations are different). The two OFDM signals are scrambled in the OOK wake-up information field, where the information generated or modulated in the subgroup #0 and subgroup #1 information fields is 1.
[0465] 423) The position of a sequence (or mapped time-frequency resource) in which at least one generated sequence information bit is 1 in the generated sequence of the OOK signal;
[0466] 424) The position of at least one coded modulated information bit in the OOK signal is a sequence (or mapped time-frequency resource) of a1+b1×j;
[0467] 425) The OFDM sequence is mapped in the Preamble field of the OOK sequence to a sequence (or mapped time-frequency resource) position where at least one information bit associated with the first sequence carrying the wake-up terminal group information index is 1;
[0468] 426) The OFDM sequence is mapped in the Preamble field of the OOK sequence to a sequence position (or mapped time-frequency resource) where at least one information bit associated with the first sequence carrying the wake-up terminal group information index is a1+b1×j.
[0469] Here are some examples:
[0470] The LP-WUS signal consists of an OOK sequence and at least one OFDM sequence. The OOK signal consists of a Preamble field, a wake-up indication field, and a CRC check field. In the Preamble information field, K1 bits are positioned as 1 (or modulated to a1+b1×j). The OFDM signal is generated by the subgroup index where the wake-up terminal group is located. The specific generation method is described in the aforementioned embodiment. If the LP-WUS signal indicates that subgroup#0 in the wake-up terminal group of subgroup#0 to subgroup#7 under a PO is awakened, an OOK signal is generated, and the position information of subgroup#0 in the wake-up information field is 1 (or modulated to a1+b1×j), and the information of the remaining wake-up information fields is 0 (or modulated to a2+b2×j). Then, an OFDM signal carrying wake-up group 0 is generated. The OFDM signal is scrambled at the time-frequency resource position where the first information in the Preamble field in the OOK wake-up information field is 1 or the first modulated information is a1+b1×j.
[0471] 5) The transmission bit information of the LP-WUS is related to at least one of the bit information of the OOK sequence and the bit information of the OFDM sequence. The LP-WUS generation rule is one or more of the following:
[0472] 51) At least one position where the OOK sequence bit information is 0 is mapped to T 0s, where T is related to at least one of the length N2 of the OFDM sequence, the bandwidth of the LP-WUS signal, and the subcarrier spacing;
[0473] 52) at least one OOK sequence bit information position with a value of 1 is mapped to at least one OFDM sequence;
[0474] 53) At least one OOK sequence bit information is mapped to a1+b1×j position into at least one OFDM sequence;
[0475] 54) At least one OOK sequence bit information is mapped to a position a1+b1×j into at least one (a1+b1×j)×OFDM sequence.
[0476] Here are some examples:
[0477] When the waveform type of the sequence is OOK-1 (M=1), the LP-WUS occupies L REs in the time domain (excluding the guard bandwidth). The specific generation relationship between the N3-bit LP-WUS generation sequence c(n), the N1-bit OOK sequence, and the N2-bit OFDM sequence can be as follows: N1 =[a0,a1....a N1 ] b N2 =[b0,b1....b N2 ]
[0478] 6) The time-frequency resource mapping method of the LP-WUS signal can be:
[0479] Method 1: 1-bit LP-WUS signal is mapped to one RE resource;
[0480] Method 2: A 1-bit LP-WUS signal is mapped to P consecutive or non-consecutive REs / RBs, where P is related to at least one of the number of bits of the OOK / LP-WUS signal carried by a single OFDM symbol, the number of LS / DFT points of the OOK sequence, the bandwidth of the LP-WUS signal, and the subcarrier spacing.
[0481] S3. LP-WUR determines the type of wake-up signal received exclusively by the device based on the device capability, and is used to receive the wake-up signal and obtain the wake-up indication information.
[0482] The capabilities of the LP-WUR device include: at least one of a radio frequency receiver based on OOK signal reception (the exclusive reception signal is an OOK signal), a baseband receiver based on OOK signal reception (the exclusive reception signal is an OOK signal), and an OFDM receiver (the exclusive reception signal is an OFDM signal).
[0483] In the second embodiment of the present disclosure, the LP-WUS signal is generated by an OOK-4 signal and K OFDM symbols.
[0484] In one example, assuming that the LP-WUS occupies 7 REs in the frequency domain, one LP-WUS can simultaneously instruct two subgroups to wake up or sleep. The base station needs to wake up both subgroups simultaneously, generate a 2-bit OOK-4 [1 1] signal, and then use 1 / 2 rate Manchester encoding to obtain a 4-bit OOK-4 encoded sequence [0 1 0 1], thereby generating a 7-bit OFDM sequence (two different OFDM sequences can also be generated based on the subgroup index).
[0485] After the OOK-4 coded sequence and the OFDM sequence are jointly generated into a WUS transmission sequence, the final transmission signal is obtained through time-frequency resource mapping. The rules for jointly generating the time-domain WUS signal from the OOK-4 transmission sequence and the OFDM sequence are one or more of the following:
[0486] 1) The bit position of 1-bit OOK=0 is expanded to 7 bits of 0;
[0487] 2) The bit position of 1-bit OOK=1 is expanded into a 7-bit OFDM sequence carrying the same wakeup subgroup index.
[0488] As shown in Figure 8, assuming that an OFDM signal can carry 2 bits of OOK-4 information (i.e., M = 2), then for the 28-bit time-domain signal generated based on the above rules, the first 14 bits (corresponding to the 2-bit OOK-4 encoded information) undergo DFT / LS to obtain a 7-bit frequency-domain signal, which is mapped to the 7 RE positions in the first OFDM symbol of the LP-WUS. Similarly, the last 14 bits (corresponding to the 2-bit OOK-4 encoded information) undergo DFT / LS to obtain a 7-bit frequency-domain signal, which is mapped to the 7 RE positions in the second OFDM symbol of the LP-WUS. The base station performs IFFT modulation on the time-frequency resource block to generate the time-domain LP-WUS signal. One OFDM time-domain transmit sequence carries 2 bits of OOK-4 information, where the time-domain position corresponding to bit 1 is scrambled with the OFDM sequence carrying the wake-up subgroup. That is, the first OFDM symbol carries the wake-up information of the OOK receiver and the OFDM receiver of subgroup #0, and the second OFDM symbol carries the wake-up information of the OOK receiver and the OFDM receiver of subgroup #1.
[0489] In one example, as shown in Figure 9, assuming that the LP-WUS occupies 7 REs in the frequency domain, one LP-WUS can simultaneously indicate whether two subgroups should wake up or sleep. The base station only needs to wake up subgroup #0, generate a 2-bit OOK-4 [1 0] signal, and then use Manchester encoding at a 1 / 2 code rate to obtain a 4-bit OOK-4 coded sequence [0 1 1 0], thus generating a 7-bit OFDM sequence. The joint WUS generation and reception method is the same as the previous example.
[0490] In the embodiment of the present disclosure, the specific processing process is as follows:
[0491] S1. The base station sends configuration information (i.e., first configuration information) of an LP-WUS signal jointly generated based on an OOK signal and K OFDM signals to at least one terminal to determine reception information of the LP-WUS signal. The base station sends an LP-WUS signal to wake up at least one LP-WUR based on the transmission requirements of the terminal.
[0492] The configuration information of the LP-WUS is the same as that described in the previous embodiment except for the following information:
[0493] OOK signal waveform information: OOK-4;
[0494] Bit information M of the OOK signal carried by a single OFDM symbol, in this embodiment, M>=1;
[0495] The guard bandwidth of the OOK signal in a single OFDM symbol.
[0496] The configuration information of the LP-WUS signal may be notified to the terminal based on at least one of protocol pre-definition, RRC signaling, SIB X signaling, downlink data or control signal indication, or activation (or deactivation).
[0497] S2. The terminal obtains the configuration information of the LP-WUS signal, determines the receiving time-frequency resource position of the LP-WUS and / or the sequence information generated by the LP-WUS signal, where the LP-WUS signal is jointly generated by an OOK signal and an OFDM signal, and the generated information includes information about the OOK signal and information about the OFDM signal.
[0498] The generation sequence of the OOK signal is related to the structure of the OOK signal, the DFT / LS size N' (DFT / LS point number N'), and the coding modulation method:
[0499] The description of the OOK signal structure and encoding method can refer to the description of the above embodiment;
[0500] The OOK signal can be obtained by performing DFT / LS transform on the generated sequence and then performing code modulation, or it can be obtained by performing code modulation on the generated sequence and then performing DFT / LS transform. In particular, if the OOK signal is not code modulated, the OOK signal is obtained by performing DFT / LS transform on the generated sequence.
[0501] The method of generating the sequence of the OFDM signal may refer to the description of the above embodiment.
[0502] The LP-WUS consists of an OOK signal and K OFDM signals. The LP-WUS generation information includes at least one of the following: the length of the LP-WUS signal, the specific bit position of the OFDM signal scrambled by the OOK signal, the bit information transmitted by the LP-WUS, and the time-frequency resource mapping relationship of the LP-WUS signal:
[0503] 1) The LP-WUS signal length L is related to at least one of the following: the OOK signal length L1, the DFT / LS size of the OOK signal, the OOK signal generation sequence length L0, the coding and modulation information of the OOK signal (for example, the coding rate, the modulation order), the OFDM signal length L2, the frequency domain bandwidth W occupied by the LP-WUS (the resource granularity can be the number of REs or RBs), the number of bits M carried by a single OFDM symbol for the LP-WUS / OOK signal, and the subcarrier spacing. The specific relationship can be one of the following:
[0504] L = L1 × A;
[0505] L = L0 × A;
[0506] L = L1 × A;
[0507] L = L0A;
[0508] L = L1 × A + B;
[0509] L = L0 × A + C;
[0510] L = ceiling (A / M) × B;
[0511] L = ceiling (A / M);
[0512] L = ceiling (A / M) × B + C;
[0513] L=ceiling(A / M)+C.
[0514] Among them, A, B, and C are related to at least one of the number of RE / RBs occupied by LP-WUS in the frequency domain, the bandwidth size, the subcarrier spacing, the bit length of the OFDM signal, the number of bits M of the LP-WUS / OOK signal carried by a single OFDM symbol, and the coding and modulation information of the OOK signal (for example, the coding rate, the modulation order).
[0515] Here are some examples:
[0516] The OOK signal format is OOK-4, M=2, and the bandwidth occupied by LP-WUR is W RBs. The generated sequence is an OOK-4 signal with a code rate of L0, which is Manchester-encoded with a code rate of 1 / 2 and combined with the OFDM signal of L2 bits to generate an LP-WUS signal with a length of L=ceiling(W×12 / M)×L0×2=ceiling(W×6)×L0×2 bits; (if the bandwidth is W REs, L=ceiling(W / 2)×L0×2 bits).
[0517] The OFDM signal scrambling position in LP-WUS is related to at least one of the bit information of the OOK transmission sequence (the sequence after coding and modulation), the OOK signal generation sequence (the sequence before coding and modulation), the OFDM signal bit information, and the information field of the second sequence. The specific scrambling position can be at least one of the following:
[0518] The transmission sequence of the OOK signal wakes up the position of the sequence (or mapped time-frequency resource) in the information field that carries the same information as the OFDM sequence and has at least one information bit set to 1;
[0519] The generation sequence of the OOK signal wakes up the position of a sequence (or mapped time-frequency resource) in which at least one information bit in the information field is 1;
[0520] The generation sequence of the OOK signal wakes up the position of the sequence (or mapped time-frequency resource) in the information domain that is the same as the information carried by the OFDM sequence and at least one information bit is 1 after DFT / LS transformation (if truncation is performed, after truncation);
[0521] The generation sequence of the OOK signal wakes up the position of the sequence (or mapped time-frequency resource) after at least one information bit in the information field is 1 after DFT / LS transformation (if truncation is performed, after truncation);
[0522] The OFDM sequence is mapped to a sequence (or mapped time-frequency resource) in the Preamble field of the OOK sequence, where at least one information bit associated with the OFDM sequence carrying the wake-up terminal group information index is 1;
[0523] The OFDM sequence is mapped in the Preamble field of the OOK sequence to the sequence position (or mapped time-frequency resource) where at least one information bit associated with the OFDM sequence carrying the wake-up terminal group information index is a1+b1×j;
[0524] The OFDM sequence is mapped to the preamble field of the OOK sequence, and to the sequence (or mapped time-frequency resource) after DFT / LS transformation (if truncation is performed) in which at least one information bit associated with the OFDM sequence carrying the wake-up terminal group information index is 1.
[0525] The OFDM sequence is mapped to the Preamble field of the OOK sequence, and at least one information bit associated with the OFDM sequence carrying the wake-up terminal group information index is a1+b1×j after DFT / LS transformation (if there is a truncation operation, then after truncation) of the sequence (or mapped time-frequency resource) position.
[0526] The transmission bit information of the LP-WUS is related to at least one of the bit information of the OOK sequence, the bit information of the generation sequence of the OOK signal, and the bit information of the OFDM sequence. The LP-WUS generation rule is at least one of the following:
[0527] The position where the transmission sequence bit information of at least one OOK signal is 0 is mapped into T 0s, where T is related to at least one of the length N2 of the OFDM sequence, the bandwidth of the LP-WUS signal, and the subcarrier spacing.
[0528] The position where the transmission sequence bit information of at least one OOK signal is 1 is mapped into at least one OFDM sequence;
[0529] The transmission sequence bit information of at least one OOK signal is mapped to at least one OFDM sequence at a1+b1×j positions;
[0530] The transmission sequence bit information of at least one OOK signal is mapped to a1+b1×j position into at least one (a2+b2×j)×first sequence;
[0531] At least one OOK signal generation sequence has a position where bit information of 0 is mapped into T 0s, where T is related to at least one of the length N2 of the OFDM sequence, the bandwidth of the LP-WUS signal, and the subcarrier spacing;
[0532] A sequence whose generated sequence bit information of at least one OOK signal is 1 (or after DFT / LS transformation, if truncation is performed, after truncation) or a time domain resource position and / or frequency domain resource position mapped by the sequence is mapped into at least one OFDM sequence;
[0533] The generated sequence bit information of at least one OOK signal is a sequence of a1+b1×j (or after DFT / LS transformation, if truncation is performed, then after truncation) or the time domain resource position and / or frequency domain resource position mapped by the sequence is mapped into at least one OFDM sequence;
[0534] The generated sequence bit information of at least one OOK signal is a sequence of a1+b1×j (or after DFT / LS transformation, if there is a truncation operation, then after truncation) or the time domain resource position and / or frequency domain resource position mapped by the sequence is mapped to at least one (a1+b1×j)×first sequence.
[0535] Here are some examples:
[0536] When the waveform type of the OOK sequence is OOK-4 (M>1), the LP-WUS occupies L REs in the time domain (excluding the guard bandwidth). The specific relationship between the LP-WUS generated sequence c(n), the N1-bit OOK sequence, and the N2-bit OFDM sequence can be: a N1 =[a0,a1....a N1 ] b N2 =[b0,b1....b N2 ]
[0537] S3. The LP-WUR determines the type of wake-up signal that the device exclusively receives based on the device's capabilities, and receives the wake-up signal to obtain the wake-up indication information. The capabilities of the LP-WUR device include at least one of: an RF receiver based on OOK signal reception (the exclusive received signal is an OOK signal), a baseband receiver based on OOK signal reception (the exclusive received signal is an OOK signal), and an OFDM receiver (the exclusive received signal is an OFDM signal).
[0538] In a third embodiment of the present disclosure, an LP-WUS signal is generated by one OOK-2 signal and K OFDM signals.
[0539] In one example, assuming that the LP-WUS occupies 7 REs in the frequency domain, one OFDM symbol carries a 2-bit OOK-2 signal, and a 1-bit OOK-2 signal occupies 3 REs (the protection bandwidth between the two bits is 1 RE). One LP-WUS can simultaneously instruct two subgroups to wake up or sleep. The base station needs to wake up the two subgroups simultaneously, generate a 2-bit OOK-2 [1 1] signal, and obtain a 4-bit OOK-2 transmission sequence [0 1 0 1] through Manchester encoding with a 1 / 2 code rate, thus generating a 3-bit OFDM sequence (two different OFDM sequences can also be generated based on the subgroup index).
[0540] Generation method 1: As shown in Figure 10, the OOK-2 transmission sequence and the OFDM sequence are combined to generate the WUS transmission sequence. After time-frequency resource mapping, the final transmission signal is obtained. The rules for the OOK-1 transmission sequence and this OFDM sequence to generate the WUS signal are one or more of the following:
[0541] 1) The bit position of 1-bit OOK=0 is expanded to 3 bits of 0;
[0542] 2) The bit position of 1-bit OOK=1 is expanded into a 3-bit OFDM sequence carrying the same wakeup subgroup index.
[0543] Based on the above rules, a 12-bit WUS transmission sequence is derived. Six bits are modulated onto an OFDM signal to jointly generate the LP-WUS signal information. The LP-WUS signal occupies two OFDM symbols. The OOK receiver determines the OOK-2 transmission bit sequence by detecting the energy of every 1 / 2 OFDM symbol. The OFDM receiver determines whether to wake up based on the position of the OFDM received sequence. For example, the terminal in subgroup #0 wakes up if it receives the OFDM sequence in the first OFDM symbol; otherwise, it goes into sleep mode. Similarly, the terminal in subgroup #1 wakes up if it receives the OFDM sequence in the second OFDM symbol; otherwise, it goes into sleep mode.
[0544] Generation method 2: As shown in Figure 11, the OFDM sequence is scrambled on specific resources after OOK-2 time-frequency mapping. The scrambling rules of the OFDM sequence are one or more of the following:
[0545] 1) The OFDM signal is not mapped to the time-frequency resource position where 1 bit OOK = 0;
[0546] 2) 1-bit OOK=1 is mapped to 3 RE resource positions on an OFDM symbol, and the 3-bit OFDM sequence identical to the subgroup index associated with the OOK bit position is modulated on these 3 REs.
[0547] Based on the above rules, a joint LP-WUS signal with a time domain duration of 2 OFDM symbols is generated. The OOK receiver detects the energy of every 1 / 2 OFDM symbol to determine the OOK-2 transmitted bit sequence. The OFDM receiver determines whether to wake up based on the position of the received OFDM sequence. For example, terminals in subgroup #0 wake up if they receive the OFDM sequence in the first OFDM symbol; otherwise, they go into hibernation. Similarly, terminals in subgroup #1 wake up if they receive the OFDM sequence in the second OFDM symbol; otherwise, they go into hibernation.
[0548] In one example, assuming that the LP-WUS occupies 7 REs in the frequency domain, a 2-bit OOK-2 signal is carried on an OFDM symbol, and a 1-bit OOK-2 signal occupies 3 REs (with a 1 RE guard band between two bits). An LP-WUS can simultaneously instruct two subgroups to wake up or sleep. The base station only wakes up subgroup #0 and not subgroup #1, generating a 2-bit OOK-2 [1 0] signal. This signal is then Manchester-encoded at a 1 / 2 code rate to obtain a 4-bit OOK-2 transmission sequence [0 1 1 0], generating a 3-bit OFDM sequence.
[0549] Among them, the joint WUS generation method (Figures 12 and 13) is the same as the method 1 and method 2 described in the first embodiment; the method for the OOK receiver and the OFDM receiver to receive signals and the method for determining whether to wake up are the same as the description of the first embodiment.
[0550] In this embodiment, the specific implementation process includes:
[0551] S1. The base station sends configuration information (the aforementioned first configuration information) of an LP-WUS signal jointly generated based on an OOK signal and an OFDM signal to at least one terminal to determine the reception information of the LP-WUS signal. The base station sends an LP-WUS signal to wake up at least one LP-WUR based on the transmission requirements of the terminal.
[0552] The LP-WUS configuration information includes, in addition to the LP-WUS configuration information in the second embodiment, the number of OOK signals scrambled with OFDM signals. The number of OOK signals scrambled with OFDM signals can be determined by at least one of protocol pre-defined, base station configured, and base station dynamically determined based on the number of awakened terminals (groups) dedicated to OFDM signals.
[0553] The configuration information of the LP-WUS signal may be notified to the terminal based on at least one of protocol pre-definition, RRC signaling, SIB X signaling, downlink data or downlink control signal indication or activation (or deactivation).
[0554] S2. The terminal obtains configuration information for the LP-WUS signal and determines the time-frequency resource location for receiving the LP-WUS and / or sequence information for generating the LP-WUS signal. The LP-WUS signal is jointly generated by an OOK signal and an OFDM signal, and the generated information includes information about the OOK signal and the OFDM signal. The generation sequence of the OOK signal and the generation sequence of the OFDM signal can be described in the second embodiment.
[0555] The LP-WUS consists of an OOK signal and at least one OFDM signal. The LP-WUS generation information includes at least one of the following: the length of the LP-WUS signal, the specific bit position of the OFDM signal scrambled with the OOK signal, the bit information transmitted by the LP-WUS, the time-frequency resource mapping relationship of the LP-WUS signal, and the number of OFDM signals scrambled with the OOK signal:
[0556] The method for determining the signal length of the LP-WUS may refer to the description of the second embodiment above.
[0557] The method for scrambling the OFDM signal position in LP-WUS can refer to the description of the second embodiment above.
[0558] The transmission bit information of the LP-WUS is related to at least one of the bit information of the OOK sequence, the bit information of the generation sequence of the OOK signal, and the bit information of at least one OFDM sequence scrambled by the OOK signal. The LP-WUS generation rule is one or more of the following:
[0559] At least one OOK signal transmit sequence bit information position where 0 is mapped to T zeros, where T is related to at least one of the length N2 of the OFDM sequence, the bandwidth of the LP-WUS signal, and the subcarrier spacing;
[0560] The position where the transmission sequence bit information of at least one OOK signal is 1 is mapped into at least one OFDM sequence;
[0561] The transmission sequence bit information of at least one OOK signal is mapped to at least one OFDM sequence at a2+b2×j positions;
[0562] The transmission sequence bit information of at least one OOK signal is mapped to a position a2+b2×j into an a2+b2×j×OFDM sequence;
[0563] At least one OOK signal generation sequence has a position where bit information of 0 is mapped into T 0s, where T is related to at least one of the length N2 of the OFDM sequence, the bandwidth of the LP-WUS signal, and the subcarrier spacing;
[0564] The position where the bit information of the generated sequence of at least one OOK signal is 1 is mapped into at least one OFDM sequence;
[0565] The generated sequence bit information of at least one OOK signal is mapped into at least one OFDM sequence at a2+b2×j positions;
[0566] The generated sequence bit information of at least one OOK signal is mapped to a position of a2+b2×j into at least one a2+b2×j×OFDM sequence.
[0567] S3. The LP-WUR determines the type of wake-up signal that the device exclusively receives based on the device's capabilities, and receives the wake-up signal to obtain the wake-up indication information. The capabilities of the LP-WUR device include at least one of: an RF receiver based on OOK signal reception (the exclusive received signal is an OOK signal), a baseband receiver based on OOK signal reception (the exclusive received signal is an OOK signal), and an OFDM receiver (the exclusive received signal is an OFDM signal).
[0568] It should be noted that the above description is based on the example of an OOK signal combined with an OFDM signal to generate an LP-WUS signal. However, in other embodiments of the present disclosure, an ASK signal and an FSK signal can also be combined to generate an LP-WUS signal. In the process of generating an LP-WUS signal through an ASK signal and an FSK signal, both the ASK signal and the FSK signal can be used to generate a first sequence, and then the corresponding other signal is used to generate a second sequence. At the same time, in the process of generating an LP-WUS signal through an ASK signal and an FSK signal, the method of generating the LP-WUS signal, the scrambling position of the first sequence, and the processing method of the terminal, etc., can all be obtained by referring to the description of the aforementioned embodiment or by adaptively modifying the aforementioned embodiment.
[0569] As can be seen from the above description, in the embodiments of the present disclosure, different LP-WUS waveforms are designed for OOK receivers and OFDM signal receiver types. This method for generating an LP-WUS signal based on the joint generation of an OOK signal and an OFDM signal can simultaneously carry the OFDM receiver wake-up information and the OOK receiver wake-up information, thereby reducing the resource overhead caused by the base station independently sending the OOK signal and the OFDM signal. When there are both OOK signals and OFDM signals at the low-power signal transmission resource location, the wake-up terminal group information is determined based on the OFDM scrambled OOK signal resource location information, which can effectively reduce the number of OFDM sequences.
[0570] The technical solution provided by the embodiment of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.
[0571] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.
[0572] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.
[0573] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding, or beamforming.
[0574] As shown in FIG14 , the signal processing apparatus according to an embodiment of the present disclosure, applied to a network device, includes: a processor 1400 configured to read a program in a memory 1420 and execute the following process:
[0575] Sending first information to the terminal;
[0576] The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information;
[0577] The first sequence and the second sequence correspond to different types of waveforms.
[0578] The transceiver 1410 is configured to receive and send data under the control of the processor 1400 .
[0579] In FIG14 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 1400 and memory represented by memory 1420. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1410 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1400 when performing operations.
[0580] The processor 1400 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.
[0581] The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 can store data used by the processor 1400 when performing operations.
[0582] In some embodiments, the different types of waveforms include:
[0583] Any two of the ASK waveform, FSK waveform, and OFDM waveform.
[0584] In some embodiments, the first information includes one or more of the following:
[0585] Time domain resource location information of the first signal;
[0586] Frequency domain resource location information of the first signal.
[0587] In some embodiments, the generation information of the first signal includes one or more of the following:
[0588] the length of the first signal;
[0589] transmission bit information of the first signal;
[0590] time-frequency resource mapping information of the first signal;
[0591] Time domain resource location information of the first signal;
[0592] Frequency domain resource location information of the first signal;
[0593] the number of terminals indicated by the first signal;
[0594] the number of terminal groups indicated by the first signal;
[0595] the number of POs associated with the first signal;
[0596] structural information of the first sequence;
[0597] generation information of the first sequence;
[0598] the length of the first sequence;
[0599] coded modulation information of the first sequence;
[0600] information about the manner in which the first sequence is scrambled into the second sequence;
[0601] generated sequence information of the second sequence;
[0602] time domain resource location information of the second sequence;
[0603] Frequency domain resource location information of the second sequence;
[0604] waveform information of the second sequence;
[0605] structural information of the second sequence;
[0606] the length of the second sequence;
[0607] coded modulation information of the second sequence;
[0608] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0609] In some embodiments, the length of the first signal is associated with one or more of the following:
[0610] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing; or
[0611] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence; or
[0612] The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, where the mapping mode includes:
[0613] 1 bit of the first signal is mapped to one RE resource; or
[0614] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0615] In some embodiments, the association relationship includes one or more of the following:
[0616] L = L1 × A;
[0617] L = ceiling (A / M) × B;
[0618] L = ceiling (A / M);
[0619] L = ceiling (A / M) × B + C;
[0620] L = ceiling (A / M) + C;
[0621] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to one or more of the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, and the number of bits of the first signal or the second sequence carried by a single OFDM symbol, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0622] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.
[0623] As shown in FIG15 , the signal processing device according to an embodiment of the present disclosure, applied to a terminal, includes: a processor 1500 configured to read a program in a memory 1520 and execute the following process:
[0624] Sending first information to the terminal;
[0625] The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information;
[0626] The first sequence and the second sequence correspond to different types of waveforms.
[0627] The transceiver 1510 is configured to receive and send data under the control of the processor 1500 .
[0628] In FIG15 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 1500 and memory represented by memory 1520, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1510 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1530 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
[0629] The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 can store data used by the processor 1500 when performing operations.
[0630] The processor 1500 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.
[0631] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.
[0632] In some embodiments, the different types of waveforms include:
[0633] Any two of the ASK waveform, FSK waveform, and OFDM waveform.
[0634] The processor 1500 is further configured to read the program and execute the following steps:
[0635] determining first information;
[0636] The first signal is received according to the first information, wherein the first information includes one or more of the following:
[0637] Time domain resource location information of the first signal;
[0638] Frequency domain resource location information of the first signal.
[0639] In some embodiments, the generation information of the first signal includes one or more of the following:
[0640] the length of the first signal;
[0641] transmission bit information of the first signal;
[0642] time-frequency resource mapping information of the first signal;
[0643] Time domain resource location information of the first signal;
[0644] Frequency domain resource location information of the first signal;
[0645] the number of terminals indicated by the first signal;
[0646] the number of terminal groups indicated by the first signal;
[0647] the number of POs associated with the first signal;
[0648] structural information of the first sequence;
[0649] generation information of the first sequence;
[0650] coded modulation information of the first sequence;
[0651] length information of the first sequence;
[0652] information about the manner in which the first sequence is scrambled into the second sequence;
[0653] generated sequence information of the second sequence;
[0654] length information of the second sequence;
[0655] a second sequence of time domain resource location information or frequency domain resource location information;
[0656] waveform information of the second sequence;
[0657] structural information of the second sequence;
[0658] coded modulation information of the second sequence;
[0659] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0660] In some embodiments, the length of the first signal is associated with one or more of the following:
[0661] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the coding and modulation information of the second sequence, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing.
[0662] In some embodiments, the association relationship includes one or more of the following:
[0663] L = L1 × A;
[0664] L = ceiling (A / M) × B;
[0665] L = ceiling (A / M);
[0666] L = ceiling (A / M) × B + C;
[0667] L = ceiling (A / M) + C;
[0668] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits of the first signal or the second sequence carried by a single OFDM symbol, and one or more of the coding and modulation information of the second sequence, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0669] In some embodiments, the position where the first sequence is scrambled to the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal information carried by the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence; and / or
[0670] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence.
[0671] In some embodiments, the position where the first sequence scrambles the second sequence comprises one or more of the following:
[0672] In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position to which the sequence in which the information bit is 1 is mapped;
[0673] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1;
[0674] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or frequency domain resource position mapped to the sequence with the information bit of 1;
[0675] In the generated sequence of the second sequence, at least one information bit is a sequence position of a1+b1×j, or at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0676] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0677] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carries the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and has information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence with information bits a1+b1×j;
[0678] In the preamble field of at least one second sequence, a sequence position where the information bit is 1 and is associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence, or a time domain resource position and / or frequency domain resource position where the information bit is mapped to a sequence of a1+b1×j;
[0679] In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j;
[0680] The at least one coded and modulated information bit of the second sequence is a sequence position of a2+b2×j, or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a2+b2×j;
[0681] Among them, a1, b1, a2, and b2 are arbitrary real numbers.
[0682] In some embodiments, the first signal is generated by one or more of the following methods:
[0683] A position where the bit information of at least one second sequence is 0 is mapped to T zeros, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1;
[0684] At least one position where bit information of the second sequence is 1 is mapped to at least one first sequence;
[0685] At least one position of the second sequence where bit information is a1+b1×j or a2+b2×j is mapped to at least one first sequence;
[0686] At least one position where the bit information of the second sequence is a1+b1×j or a2+b2×j is mapped to the product of at least one a1+b1×j and the first sequence or mapped to the product of at least one a2+b2×j and the first sequence;
[0687] Among them, a1, b1, a2, and b2 are arbitrary real numbers.
[0688] In some embodiments, the time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes:
[0689] 1 bit of the first signal is mapped to one RE resource; or
[0690] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0691] In some embodiments, the first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal specific to the first type of receiver;
[0692] The second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal exclusive to the second type of receiver;
[0693] The first type of receiver includes an OFDM receiver, and the second type of receiver includes a baseband frequency receiver or a radio frequency receiver.
[0694] In some embodiments, the first sequence is an orthogonal sequence or a random sequence; or
[0695] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated based on a base sequence through cyclic shift; or
[0696] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated according to a third sequence;
[0697] and / or
[0698] The second sequence is generated according to an ASK signal or an FSK signal; or
[0699] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is generated by coding and modulating a generated sequence; or
[0700] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is a generated sequence.
[0701] The processor 1500 is further configured to read the program and execute the following steps:
[0702] obtaining the first sequence;
[0703] Acquire wake-up indication information carried by the first sequence and / or wake-up indication information carried by the second sequence.
[0704] In some embodiments, one or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information:
[0705] Cell ID, UE ID, PO index, PF index, subgroup index, terminal group ID, Area ID.
[0706] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.
[0707] As shown in FIG16 , the signal processing device according to an embodiment of the present disclosure, applied to a terminal, includes:
[0708] A first receiving unit 1601 is configured to receive a first signal;
[0709] The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up instruction information, wake-up terminal information, and wake-up terminal group information;
[0710] The first sequence and the second sequence correspond to different types of waveforms.
[0711] In some embodiments, the different types of waveforms include:
[0712] Any two of the ASK waveform, FSK waveform, and OFDM waveform.
[0713] In some embodiments, the apparatus may further comprise:
[0714] a first determining unit, configured to determine first information;
[0715] The first receiving unit is further configured to receive the first signal according to the first information, wherein the first information includes one or more of the following:
[0716] time domain resource location information of the first signal;
[0717] Frequency domain resource location information of the first signal.
[0718] In some embodiments, the generation information of the first signal includes one or more of the following:
[0719] the length of the first signal;
[0720] transmission bit information of the first signal;
[0721] time-frequency resource mapping information of the first signal;
[0722] time domain resource location information of the first signal;
[0723] Frequency domain resource location information of the first signal;
[0724] the number of terminals indicated by the first signal;
[0725] the number of terminal groups indicated by the first signal;
[0726] the number of POs associated with the first signal;
[0727] structural information of the first sequence;
[0728] generation information of the first sequence;
[0729] coded modulation information of the first sequence;
[0730] length information of the first sequence;
[0731] information about the manner in which the first sequence is scrambled into the second sequence;
[0732] generated sequence information of the second sequence;
[0733] length information of the second sequence;
[0734] time domain resource location information of the second sequence;
[0735] Frequency domain resource location information of the second sequence;
[0736] waveform information of the second sequence;
[0737] structural information of the second sequence;
[0738] coded modulation information of the second sequence;
[0739] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0740] In some embodiments, the length of the first signal is associated with one or more of the following:
[0741] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the coding and modulation information of the second sequence, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing.
[0742] In some embodiments, the association relationship includes one or more of the following:
[0743] L = L1 × A;
[0744] L = ceiling (A / M) × B;
[0745] L = ceiling (A / M);
[0746] L = ceiling (A / M) × B + C;
[0747] L = ceiling (A / M) + C;
[0748] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits of the first signal or the second sequence carried by a single OFDM symbol, and one or more of the coding and modulation information of the second sequence, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0749] In some embodiments, the position where the first sequence is scrambled to the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal information carried by the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence; and / or
[0750] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence.
[0751] In some embodiments, the position where the first sequence scrambles the second sequence comprises one or more of the following:
[0752] In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position to which the sequence in which the information bit is 1 is mapped;
[0753] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1;
[0754] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or frequency domain resource position mapped to the sequence with the information bit of 1;
[0755] In the generated sequence of the second sequence, at least one information bit is a sequence position of a1+b1×j, or at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0756] In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a1+b1×j;
[0757] Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carries the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and has information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence with information bits a1+b1×j;
[0758] In the preamble field of at least one second sequence, a sequence position where the information bit is 1 and is associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence, or a time domain resource position and / or frequency domain resource position where the information bit is mapped to a sequence of a1+b1×j;
[0759] In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j;
[0760] The at least one coded and modulated information bit of the second sequence is a sequence position of a2+b2×j, or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a2+b2×j;
[0761] Among them, a1, b1, a2, and b2 are arbitrary real numbers.
[0762] In some embodiments, the first signal is generated by one or more of the following methods:
[0763] A position where the bit information of at least one second sequence is 0 is mapped to T zeros, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1;
[0764] At least one position where bit information of the second sequence is 1 is mapped to at least one first sequence;
[0765] At least one position of the second sequence where bit information is a1+b1×j or a2+b2×j is mapped to at least one first sequence;
[0766] At least one position where the bit information of the second sequence is a1+b1×j or a2+b2×j is mapped to the product of at least one a1+b1×j and the first sequence or mapped to the product of at least one a2+b2×j and the first sequence;
[0767] Among them, a1, b1, a2, and b2 are arbitrary real numbers.
[0768] In some embodiments, the time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes:
[0769] 1 bit of the first signal is mapped to one RE resource; or
[0770] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0771] In some embodiments, the first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal specific to the first type of receiver;
[0772] The second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal exclusive to the second type of receiver;
[0773] The first type of receiver includes an OFDM receiver, and the second type of receiver includes a baseband frequency receiver or a radio frequency receiver.
[0774] In some embodiments, the first sequence is an orthogonal sequence or a random sequence; or
[0775] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated based on a base sequence through cyclic shift; or
[0776] The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated according to a third sequence;
[0777] and / or
[0778] The second sequence is generated according to an ASK signal or an FSK signal; or
[0779] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is generated by coding and modulating a generated sequence; or
[0780] The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is a generated sequence.
[0781] In some embodiments, the apparatus may further comprise:
[0782] a first acquiring unit, configured to acquire the wake-up indication information according to the first signal;
[0783] In some embodiments, the first obtaining unit is further configured to:
[0784] obtaining the first sequence;
[0785] Acquire wake-up indication information carried by the first sequence and / or wake-up indication information carried by the second sequence.
[0786] In some embodiments, one or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information:
[0787] Cell ID, UE ID, PO index, PF index, subgroup index, terminal group ID, Area ID.
[0788] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.
[0789] As shown in FIG17 , the signal processing device according to an embodiment of the present disclosure is applied to a network device, including:
[0790] The first sending unit 1701 is configured to send first information to a terminal;
[0791] The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information;
[0792] The first sequence and the second sequence correspond to different types of waveforms.
[0793] In some embodiments, the different types of waveforms include:
[0794] Any two of the ASK waveform, FSK waveform, and OFDM waveform.
[0795] In some embodiments, the first information includes one or more of the following:
[0796] time domain resource location information of the first signal;
[0797] Frequency domain resource location information of the first signal.
[0798] In some embodiments, the generation information of the first signal includes one or more of the following:
[0799] the length of the first signal;
[0800] transmission bit information of the first signal;
[0801] time-frequency resource mapping information of the first signal;
[0802] time domain resource location information of the first signal;
[0803] Frequency domain resource location information of the first signal;
[0804] the number of terminals indicated by the first signal;
[0805] the number of terminal groups indicated by the first signal;
[0806] the number of POs associated with the first signal;
[0807] structural information of the first sequence;
[0808] generation information of the first sequence;
[0809] the length of the first sequence;
[0810] coded modulation information of the first sequence;
[0811] information about the manner in which the first sequence is scrambled into the second sequence;
[0812] generated sequence information of the second sequence;
[0813] time domain resource location information of the second sequence;
[0814] Frequency domain resource location information of the second sequence;
[0815] waveform information of the second sequence;
[0816] structural information of the second sequence;
[0817] the length of the second sequence;
[0818] coded modulation information of the second sequence;
[0819] The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
[0820] In some embodiments, the length of the first signal is associated with one or more of the following:
[0821] The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the number of bits carried by a single OFDM symbol for the first signal or the second sequence, and the subcarrier spacing; or
[0822] The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence; or,
[0823] The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, where the mapping mode includes:
[0824] 1 bit of the first signal is mapped to one RE resource; or
[0825] The 1-bit first signal is mapped to P consecutive or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
[0826] In some embodiments, the association relationship includes one or more of the following:
[0827] L = L1 × A;
[0828] L = ceiling (A / M) × B;
[0829] L = ceiling (A / M);
[0830] L = ceiling (A / M) × B + C;
[0831] L = ceiling (A / M) + C;
[0832] Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to one or more of the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, and the number of bits of the first signal or the second sequence carried by a single OFDM symbol, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
[0833] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.
[0834] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.
[0835] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
[0836] An embodiment of the present disclosure further provides a communication device, including: a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the steps in the above-mentioned signal processing method when executing the program.
[0837] The present disclosure also provides a processor-readable storage medium, on which a program is stored. When the program is executed by the processor, each process of the above-mentioned signal processing method embodiment is implemented, and the same technical effect is achieved. To avoid repetition, it is not repeated here. The readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical (MO)), etc.), optical storage (such as a laser disc (Compact Disk, CD), a digital versatile disc (Digital Versatile Disc, DVD), a Blu-ray Disc (Blu-ray Disc, BD), a high-definition versatile disc (High-Definition Versatile Disc, HVD), etc.), and semiconductor memory (such as ROM, erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.
[0838] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.
[0839] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the relevant technology, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD-ROM), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present disclosure.
[0840] The embodiments of the present disclosure are described above in conjunction with the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present disclosure, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present disclosure and the claims, all of which are protected by the present disclosure.
Claims
1. A signal processing method, applied to a terminal, comprising: receiving a first signal; The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information; The first sequence and the second sequence correspond to different types of waveforms.
2. The method according to claim 1, wherein: The different types of waveforms include: Any two of the ASK waveform, FSK waveform, and OFDM waveform.
3. The method according to claim 1, wherein: The receiving the first signal comprises: determining first information; The first signal is received according to the first information, wherein the first information includes one or more of the following: generation information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal.
4. The method according to claim 3, wherein: The generation information of the first signal includes one or more of the following: the length of the first signal; transmission bit information of the first signal; the number of terminals indicated by the first signal; The number of terminal groups indicated by the first signal; The number of paging occasions PO associated with the first signal; time-frequency resource mapping information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal; structural information of the first sequence; generation information of the first sequence; coded modulation information of the first sequence; length information of the first sequence; information about the manner in which the first sequence scrambles the second sequence; generated sequence information of the second sequence; length information of the second sequence; The time domain resource location information of the second sequence; Frequency domain resource location information of the second sequence; The waveform information of the second sequence; structural information of the second sequence; coded modulation information of the second sequence; The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
5. The method according to claim 3 or 4, wherein: The length of the first signal is associated with one or more of the following: The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the coding and modulation information of the second sequence, the number of bits of a single OFDM symbol carrying the first signal or the second sequence, and the subcarrier spacing.
6. The method according to claim 5, wherein: The association relationship includes one or more of the following: L = L1 × A; L = ceiling (A / M) × B; L = ceiling (A / M); L = ceiling (A / M) × B + C; L = ceiling (A / M) + C; Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to one or more of the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits M of the first signal or the second sequence carried by a single OFDM symbol, and the coding and modulation information of the second sequence, ceiling represents a round-up function, and L1 represents the information bit length or the transmission bit length of the second sequence.
7. The method according to claim 1, wherein: The position where the first sequence scrambles the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal information carried by the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence; and / or The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence.
8. The method according to claim 7, wherein: The position where the first sequence scrambles the second sequence comprises one or more of the following: In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position mapped to a sequence in which the information bit is 1; a sequence position in which at least one information bit is 1 in the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1; Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or a frequency domain resource position mapped to the sequence having the information bit of 1; In the generated sequence of the second sequence, at least one information bit is a sequence position of a1+b1×j, or at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to a sequence of a1+b1×j; In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to a sequence of a1+b1×j; Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having information bits a1+b1×j, or a time domain resource position and / or a frequency domain resource position mapped to a sequence having information bits a1+b1×j; In the preamble field of at least one second sequence, a sequence position that is associated with or identical to the wake-up terminal index or the wake-up terminal group index carried by the first sequence and whose information bit is 1, or a time domain resource position and / or frequency domain resource position of a sequence mapping where the information bit is a1+b1×j; In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or the wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j; At least one coded modulated information bit of the second sequence is a sequence position of a2+b2×j, or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a2+b2×j; Among them, a1, b1, a2, b2 are arbitrary real numbers.
9. The method according to claim 1, wherein: The first signal is generated by one or more of the following methods: A position where the bit information of at least one of the second sequences is 0 is mapped to T 0s, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1; At least one position where the bit information of the second sequence is 1 is mapped to at least one first sequence; At least one position where the bit information of the second sequence is a1+b1×j or a2+b2×j is mapped to at least one first sequence; At least one position of the bit information of the second sequence is a1+b1×j or a2+b2×j, which is mapped to the product of at least one a1+b1×j and the first sequence or mapped to the product of at least one a2+b2×j and the first sequence; Among them, a1, b1, a2, b2 are arbitrary real numbers.
10. The method according to claim 4, wherein: The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes: 1 bit of the first signal is mapped to one RE resource; or The 1-bit first signal is mapped to P continuous or non-continuous REs or RBs, where P is related to one or more of the number of bits M of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal and the subcarrier spacing, and P is an integer greater than or equal to 1.
11. The method according to claim 1, wherein: The first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal dedicated to the first type of receiver; The second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal dedicated to the second type of receiver; The first type of receiver includes an OFDM receiver, and the second type of receiver includes a baseband frequency receiver or a radio frequency receiver.
12. The method according to claim 1, wherein: The first sequence is an orthogonal sequence or a random sequence; or The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated by cyclic shift based on a base sequence; or The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated according to a third sequence; and / or The second sequence is generated according to an ASK signal or an FSK signal; or The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is generated by coding and modulating a generated sequence; or The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is a generated sequence.
13. The method according to claim 7, 11 or 12, wherein: The method further comprises: Acquiring the wake-up indication information according to the first signal includes: acquiring the first sequence; Acquire wake-up indication information carried by the first sequence and / or wake-up indication information carried by the second sequence.
14. The method according to claim 13, wherein: One or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information: Cell ID, terminal ID UE ID, paging opportunity index PO index, paging frame index PF index, subgroup index subgroup index, terminal group ID UE group ID, area ID.
15. A signal processing method, applied to a network device, comprising: Sending first information to a terminal; The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information; The first sequence and the second sequence correspond to different types of waveforms.
16. The method according to claim 15, wherein: The different types of waveforms include: Any two of the ASK waveform, FSK waveform, and OFDM waveform.
17. The method according to claim 15, wherein: The first information includes one or more of the following: generation information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal.
18. The method according to claim 17, wherein: The generation information of the first signal includes one or more of the following: the length of the first signal; transmission bit information of the first signal; time-frequency resource mapping information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal; the number of terminals indicated by the first signal; The number of terminal groups indicated by the first signal; The number of POs associated with the first signal; structural information of the first sequence; generation information of the first sequence; the length of the first sequence; coded modulation information of the first sequence; information about the manner in which the first sequence scrambles the second sequence; generated sequence information of the second sequence; The time domain resource location information of the second sequence; Frequency domain resource location information of the second sequence; The waveform information of the second sequence; structural information of the second sequence; the length of the second sequence; coded modulation information of the second sequence; The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
19. The method according to any one of claims 15 to 18, wherein: The length of the first signal is associated with one or more of the following: the length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the number of bits of a single OFDM symbol carrying the first signal or the second sequence, and the subcarrier spacing; or, The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence; or, The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes: 1 bit of the first signal is mapped to one RE resource; or The 1-bit first signal is mapped to P continuous or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal and the subcarrier spacing, and P is an integer greater than or equal to 1.
20. The method according to claim 19, wherein: The association relationship includes one or more of the following: L = L1 × A; L = ceiling (A / M) × B; L = ceiling (A / M); L = ceiling (A / M) × B + C; L = ceiling (A / M) + C; Wherein, L represents the signal bit length or time domain duration of the first signal, M represents a single The number of bits of the first signal or the second sequence carried by an OFDM symbol, A, B, and C are related to the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, and the number of bits of the first signal or the second sequence carried by a single OFDM symbol. Ceiling represents a rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
21. A signal processing device, applied to a terminal, comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: receiving a first signal; The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information; The first sequence and the second sequence correspond to different types of waveforms.
22. The device according to claim 21, wherein The different types of waveforms include: Any two of the ASK waveform, FSK waveform, and OFDM waveform.
23. The device according to claim 21, wherein The processor is further configured to read the computer program in the memory and perform the following operations: determining first information; The first signal is received according to the first information, wherein the first information includes one or more of the following: generation information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal.
24. The device according to claim 23, wherein: The generation information of the first signal includes one or more of the following: the length of the first signal; transmission bit information of the first signal; time-frequency resource mapping information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal; the number of terminals indicated by the first signal; The number of terminal groups indicated by the first signal; The number of POs associated with the first signal; structural information of the first sequence; generation information of the first sequence; coded modulation information of the first sequence; length information of the first sequence; information about the manner in which the first sequence scrambles the second sequence; generated sequence information of the second sequence; length information of the second sequence; The time domain resource location information of the second sequence; Frequency domain resource location information of the second sequence; The waveform information of the second sequence; structural information of the second sequence; coded modulation information of the second sequence; The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
25. The device according to claim 23 or 24, wherein: The length of the first signal is associated with one or more of the following: The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the coding and modulation information of the second sequence, the number of bits of a single OFDM symbol carrying the first signal or the second sequence, and the subcarrier spacing.
26. The device according to claim 25, wherein The association relationship includes one or more of the following: L = L1 × A; L = ceiling (A / M) × B; L = ceiling (A / M); L = ceiling (A / M) × B + C; L = ceiling (A / M) + C; Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits of the first signal or the second sequence carried by a single OFDM symbol, and one or more of the coding and modulation information of the second sequence, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
27. The device according to claim 21, wherein The position where the first sequence scrambles the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal information carried by the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence; and / or The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence.
28. The device according to claim 27, wherein The position where the first sequence scrambles the second sequence comprises one or more of the following: In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position mapped to a sequence in which the information bit is 1; a sequence position in which at least one information bit is 1 in the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1; Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or a frequency domain resource position mapped to the sequence having the information bit of 1; In the generated sequence of the second sequence, at least one information bit is a sequence position of a1+b1×j, or at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to a sequence of a1+b1×j; In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to a sequence of a1+b1×j; Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having information bits a1+b1×j, or a time domain resource position and / or a frequency domain resource position mapped to a sequence having information bits a1+b1×j; In the preamble field of at least one second sequence, a sequence position that is associated with or identical to the wake-up terminal index or the wake-up terminal group index carried by the first sequence and whose information bit is 1, or a time domain resource position and / or frequency domain resource position of a sequence mapping where the information bit is a1+b1×j; In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or the wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j; At least one coded modulated information bit of the second sequence is a sequence position of a2+b2×j, or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a2+b2×j; Among them, a1, b1, a2, b2 are arbitrary real numbers.
29. The device according to claim 21, wherein The first signal is generated by one or more of the following methods: A position where the bit information of at least one of the second sequences is 0 is mapped to T 0s, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1; At least one position where the bit information of the second sequence is 1 is mapped to at least one first sequence; At least one position where the bit information of the second sequence is a1+b1×j or a2+b2×j is mapped to at least one first sequence; At least one position of the bit information of the second sequence is a1+b1×j or a2+b2×j, which is mapped to the product of at least one a1+b1×j and the first sequence or mapped to the product of at least one a2+b2×j and the first sequence; Among them, a1, b1, a2, b2 are arbitrary real numbers.
30. The device according to claim 24, wherein: The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes: 1 bit of the first signal is mapped to one RE resource; or The 1-bit first signal is mapped to P consecutive or non-consecutive REs or RBs, where: P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal, and the subcarrier spacing, and P is an integer greater than or equal to 1.
31. The device according to claim 21, wherein The first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal dedicated to the first type of receiver; The second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal dedicated to the second type of receiver; The first type of receiver includes an OFDM receiver, and the second type of receiver includes a baseband frequency receiver or a radio frequency receiver.
32. The device according to claim 21, wherein The first sequence is an orthogonal sequence or a random sequence; or The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated by cyclic shift based on a base sequence; or The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated according to a third sequence; and / or The second sequence is generated according to an ASK signal or an FSK signal; or The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is generated by coding and modulating a generated sequence; or The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is a generated sequence.
33. The device according to claim 27, 31 or 32, wherein: The processor is further configured to read the computer program in the memory and perform the following operations: obtaining the wake-up indication information according to the first signal, including: acquiring the first sequence; Acquire wake-up indication information carried by the first sequence and / or wake-up indication information carried by the second sequence.
34. The device according to claim 33, wherein: One or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information: Cell ID, terminal ID, UE ID, paging opportunity index PO index, paging frame index PF index, subgroup index, terminal group ID, area ID.
35. A signal processing device, applied to a network device, comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Sending first information to a terminal; The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information; The first sequence and the second sequence correspond to different types of waveforms.
36. The device according to claim 35, wherein The different types of waveforms include: Any two of the ASK waveform, FSK waveform, and OFDM waveform.
37. The device according to claim 35, wherein: The first information includes one or more of the following: generation information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal.
38. The device according to claim 37, wherein The generation information of the first signal includes one or more of the following: the length of the first signal; transmission bit information of the first signal; time-frequency resource mapping information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal; the number of terminals indicated by the first signal; The number of terminal groups indicated by the first signal; The number of POs associated with the first signal; structural information of the first sequence; generation information of the first sequence; the length of the first sequence; coded modulation information of the first sequence; information about the manner in which the first sequence scrambles the second sequence; generated sequence information of the second sequence; The time domain resource location information of the second sequence; Frequency domain resource location information of the second sequence; The waveform information of the second sequence; structural information of the second sequence; the length of the second sequence; coded modulation information of the second sequence; The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
39. The device according to any one of claims 35 to 38, wherein: The length of the first signal is associated with one or more of the following: the length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the number of bits of a single OFDM symbol carrying the first signal or the second sequence, and the subcarrier spacing; or, The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence; or, The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes: 1 bit of the first signal is mapped to one RE resource; or The 1-bit first signal is mapped to P continuous or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal and the subcarrier spacing, and P is an integer greater than or equal to 1.
40. The device according to claim 39, wherein The association relationship includes one or more of the following: L = L1 × A; L = ceiling (A / M) × B; L = ceiling (A / M); L = ceiling (A / M) × B + C; L = ceiling (A / M) + C; Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to one or more of the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, and the number of bits of the first signal or the second sequence carried by a single OFDM symbol, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
41. A signal processing device, applied to a terminal, comprising: A first receiving unit, configured to receive a first signal; The first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information; The first sequence and the second sequence correspond to different types of waveforms.
42. The device according to claim 41, wherein The different types of waveforms include: Any two of the ASK waveform, FSK waveform, and OFDM waveform.
43. The device according to claim 41, wherein The device also includes: A first determining unit, configured to determine first information; The first receiving unit is further configured to receive the first signal according to the first information, wherein the first information includes one or more of the following: Time domain resource location information of the first signal; Frequency domain resource location information of the first signal.
44. The device according to claim 43, wherein The generation information of the first signal includes one or more of the following: the length of the first signal; transmission bit information of the first signal; the number of terminals indicated by the first signal; The number of terminal groups indicated by the first signal; The number of paging occasions PO associated with the first signal; time-frequency resource mapping information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal; structural information of the first sequence; generation information of the first sequence; coded modulation information of the first sequence; length information of the first sequence; information about the manner in which the first sequence scrambles the second sequence; generated sequence information of the second sequence; length information of the second sequence; The time domain resource location information of the second sequence; Frequency domain resource location information of the second sequence; The waveform information of the second sequence; structural information of the second sequence; coded modulation information of the second sequence; The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
45. The device according to claim 43 or 44, wherein: The length of the first signal is associated with one or more of the following: The length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the coding and modulation information of the second sequence, the number of bits of a single OFDM symbol carrying the first signal or the second sequence, and the subcarrier spacing.
46. The device according to claim 45, wherein The association relationship includes one or more of the following: L = L1 × A; L = ceiling (A / M) × B; L = ceiling (A / M); L = ceiling (A / M) × B + C; L = ceiling (A / M) + C; Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, the number of bits M carried by a single OFDM symbol for the first signal or the second sequence, and one or more of the coding and modulation information of the second sequence, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
47. The apparatus of claim 41, wherein: The position where the first sequence scrambles the second sequence is related to one or more of the bit information of the first sequence, the bit information of the second sequence, the wake-up terminal information carried by the second sequence, the wake-up terminal group information carried by the second sequence, and the wake-up indication information carried by the second sequence; and / or The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence.
48. The apparatus of claim 47, wherein: The position where the first sequence scrambles the second sequence comprises one or more of the following: In the generated sequence of the second sequence, a sequence position in which at least one information bit is 1, or a time domain resource position and / or a frequency domain resource position mapped to a sequence in which the information bit is 1; a sequence position in which at least one information bit is 1 in the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, or a time domain resource position and / or a frequency domain resource position mapped to the sequence in which the information bit is 1; Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having an information bit of 1, or a time domain resource position and / or a frequency domain resource position mapped to the sequence having the information bit of 1; In the generated sequence of the second sequence, at least one information bit is a1+b1×j sequence position, or at least one information bit is a1+b1×j sequence mapping time domain resource position and / or frequency domain resource position. Domain resource location; In the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one information bit is a sequence position of a1+b1×j, or the at least one information bit is a time domain resource position and / or a frequency domain resource position mapped to a sequence of a1+b1×j; Among the wake-up indication information, wake-up terminal information, or wake-up terminal group information carried by the second sequence, at least one sequence position carrying the same wake-up indication information, the same wake-up terminal information, or the same wake-up terminal group as the first sequence and having information bits a1+b1×j, or a time domain resource position and / or a frequency domain resource position mapped to a sequence having information bits a1+b1×j; In the preamble field of at least one second sequence, a sequence position that is associated with or identical to the wake-up terminal index or the wake-up terminal group index carried by the first sequence and whose information bit is 1, or a time domain resource position and / or frequency domain resource position of a sequence mapping where the information bit is a1+b1×j; In the Preamble field of at least one second sequence, a sequence position associated with or identical to the wake-up terminal index or the wake-up terminal group index carried by the first sequence and having information bits a1+b1×j, or a time domain resource position and / or frequency domain resource position mapped to a sequence having information bits a1+b1×j; At least one coded modulated information bit of the second sequence is a sequence position of a2+b2×j, or the information bit is a time domain resource position and / or a frequency domain resource position mapped to the sequence of a2+b2×j; Among them, a1, b1, a2, b2 are arbitrary real numbers.
49. The apparatus of claim 41, wherein: The first signal is generated by one or more of the following methods: A position where the bit information of at least one of the second sequences is 0 is mapped to T 0s, where T is related to one or more of the length of the first sequence, the bandwidth of the first signal, and the subcarrier spacing, and T is an integer greater than or equal to 1; At least one position where the bit information of the second sequence is 1 is mapped to at least one first sequence; At least one position where the bit information of the second sequence is a1+b1×j or a2+b2×j is mapped to at least one first sequence; At least one position of the bit information of the second sequence is a1+b1×j or a2+b2×j, which is mapped to the product of at least one a1+b1×j and the first sequence or mapped to the product of at least one a2+b2×j and the first sequence; Among them, a1, b1, a2, b2 are arbitrary real numbers.
50. The apparatus of claim 44, wherein: The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes: 1 bit of the first signal is mapped to one RE resource; or The 1-bit first signal is mapped to P continuous or non-continuous REs or RBs, where P is related to one or more of the number of bits M of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal and the subcarrier spacing, and P is an integer greater than or equal to 1.
51. The apparatus of claim 41, wherein: The first sequence is generated based on an OFDM waveform and is used to carry a wake-up signal dedicated to the first type of receiver; The second sequence is generated based on an ASK waveform or an FSK waveform and is used to carry a wake-up signal dedicated to the second type of receiver; The first type of receiver includes an OFDM receiver, and the second type of receiver includes a baseband frequency receiver or a radio frequency receiver.
52. The apparatus of claim 41, wherein: The first sequence is an orthogonal sequence or a random sequence; or The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated by cyclic shift based on a base sequence; or The first sequence is an orthogonal sequence or a random sequence, and the first sequence is generated according to a third sequence; and / or The second sequence is generated according to an ASK signal or an FSK signal; or The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is generated by coding and modulating a generated sequence; or The second sequence is generated according to an ASK signal or an FSK signal, and the second sequence is a generated sequence.
53. The apparatus of claim 47, 51 or 52, wherein: The device also includes: A first acquiring unit, configured to acquire the wake-up indication information according to the first signal; The first acquisition unit is further configured to: acquiring the first sequence; Acquire wake-up indication information carried by the first sequence and / or wake-up indication information carried by the second sequence.
54. The apparatus of claim 53, wherein: One or more of the first sequence, the second sequence, the wake-up terminal information, and the wake-up terminal group information are related to one or more of the following information: Cell ID, terminal ID UE ID, paging opportunity index PO index, paging frame index PF index, subgroup index subgroup index, terminal group ID UE group ID, area ID.
55. A signal processing device, applied to a server, comprising: A first sending unit, configured to send first information to a terminal; The first information is used to receive a first signal, the first signal includes a first sequence and a second sequence, and the first sequence and the second sequence are used to carry at least one of the following information of the same terminal or the same terminal group: wake-up indication information, wake-up terminal information, and wake-up terminal group information; The first sequence and the second sequence correspond to different types of waveforms.
56. The apparatus of claim 55, wherein: The different types of waveforms include: Any two of the ASK waveform, FSK waveform, and OFDM waveform.
57. The apparatus of claim 55, wherein: The first information includes one or more of the following: generation information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal.
58. The apparatus of claim 57, wherein: The generation information of the first signal includes one or more of the following: the length of the first signal; transmission bit information of the first signal; time-frequency resource mapping information of the first signal; Time domain resource location information of the first signal; Frequency domain resource location information of the first signal; the number of terminals indicated by the first signal; The number of terminal groups indicated by the first signal; The number of POs associated with the first signal; structural information of the first sequence; generation information of the first sequence; the length of the first sequence; coded modulation information of the first sequence; information about the manner in which the first sequence scrambles the second sequence; generated sequence information of the second sequence; The time domain resource location information of the second sequence; Frequency domain resource location information of the second sequence; The waveform information of the second sequence; structural information of the second sequence; the length of the second sequence; coded modulation information of the second sequence; The number of bits carried by a single OFDM symbol in the first signal or the second sequence.
59. The device according to any one of claims 55 to 58, wherein: The length of the first signal is associated with one or more of the following: the length of the first sequence, the length of the second sequence, the bandwidth of the first signal, the number of bits of a single OFDM symbol carrying the first signal or the second sequence, and the subcarrier spacing; or, The transmission bit information of the first signal is related to one or more of the bit information of the second sequence, the bit information of a generated sequence of the second sequence, and the bit information of the first sequence; or, The time-frequency resource mapping information of the first signal includes a time-frequency resource mapping mode of the first signal, wherein the mapping mode includes: 1 bit of the first signal is mapped to one RE resource; or The 1-bit first signal is mapped to P continuous or non-continuous REs or RBs, where P is related to one or more of the number of bits of the first signal or the second sequence carried by a single OFDM symbol, the number of points of the least squares LS or discrete Fourier transform DFT of the second sequence, the bandwidth of the first signal and the subcarrier spacing, and P is an integer greater than or equal to 1.
60. The apparatus of claim 59, wherein: The association relationship includes one or more of the following: L = L1 × A; L = ceiling (A / M) × B; L = ceiling (A / M); L = ceiling (A / M) × B + C; L = ceiling (A / M) + C; Among them, L represents the signal bit length or time domain duration of the first signal, M represents the number of bits of the first signal or the second sequence carried by a single OFDM symbol, A, B, and C are related to one or more of the number of resource units RE or resource blocks RB occupied by the first signal in the frequency domain, the bandwidth of the first signal, the subcarrier spacing, the length of the first sequence, and the number of bits of the first signal or the second sequence carried by a single OFDM symbol, ceiling represents the rounding function, and L1 represents the information bit length or the transmission bit length of the second sequence.
61. A processor-readable storage medium storing a computer program, wherein the computer program is used to cause the processor to execute the method according to any one of claims 1 to 20.
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