Low-power-consumption wake-up signal sending and receiving method, network side equipment and terminal

Abstract

The invention discloses a low-power-consumption wake-up signal sending method, a low-power-consumption wake-up signal receiving method, network side equipment and a terminal, and belongs to the field of communication, and the low-power-consumption wake-up signal sending method comprises the following steps: the network side equipment sends a low-power-consumption wake-up signal according to a forward transformation parameter and / or a first rule corresponding to a radio resource control (RRC) state of the terminal; wherein the forward transformation parameter comprises a parameter adopted in a process of transforming original low-power-consumption wake-up information into the low-power-consumption wake-up signal, and the first rule comprises a sending rule of the low-power-consumption wake-up signal corresponding to a low-power-consumption wake-up signal transmission resource.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a low-power wake-up signal transmission and reception method, network-side equipment, and terminal. Background Technology

[0002] The 3rd Generation Partnership Project (3GPP) has been researching the introduction of low-power wake-up receivers or wake-up signals (LPWUR / WUS) into mobile communication systems since Rel-18.

[0003] When the terminal is in the Radio Resource Control (RRC) idle / inactive state, the network-side device can wake up the terminal to listen for paging information by sending a low-power wake-up signal. Similarly, when the terminal is in the RRC connected state, the network-side device can wake up the terminal to listen for the Physical Downlink Control Channel (PDCCH) by sending a low-power wake-up signal.

[0004] However, there is currently no distinction between low-power wake-up signals for terminals in different RRC states, resulting in a high false wake-up rate. For example, the low-power wake-up signal sent by the network-side device is intended to wake up a terminal in the RRC connected state to listen to the PDCCH, but it may mistakenly wake up a terminal in the RRC idle / inactive state as well. Summary of the Invention

[0005] This application provides a low-power wake-up signal transmission and reception method, a network-side device, and a terminal to solve the problem of a high false wake-up rate in current low-power wake-up signal transmission schemes.

[0006] Firstly, a low-power wake-up signal transmission method is provided, the method comprising: The network-side device sends a low-power wake-up signal according to the forward transformation parameters and / or the first rule corresponding to the terminal's radio resource control RRC state; wherein, the forward transformation parameters include the parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0007] Secondly, a low-power wake-up signal receiving method is provided, the method comprising: The terminal receives a low-power wake-up signal based on the inverse transformation parameters and / or the first rule corresponding to the RRC state of its own radio resource control; wherein, the inverse transformation parameters include the parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0008] Thirdly, a low-power wake-up signal transmitting device is provided, the device comprising: The first transmitting module is used to transmit a low-power wake-up signal according to the forward transformation parameters and / or the first rule corresponding to the radio resource control (RRC) state of the terminal; wherein, the forward transformation parameters include parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0009] Fourthly, a low-power wake-up signal receiving device is provided, the device comprising: The first receiving module is configured to receive a low-power wake-up signal according to the inverse transformation parameters and / or the first rule corresponding to the radio resource control (RRC) state of the terminal; wherein, the inverse transformation parameters include parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0010] Fifthly, a communication device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0011] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0012] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive a low-power wake-up signal according to the transformation parameters and / or a first rule corresponding to the terminal's own radio resource control RRC state; wherein the reverse transformation parameters include parameters used in the process of transforming the low-power wake-up signal into original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0013] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0014] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a low-power wake-up signal according to the forward transformation parameters and / or a first rule corresponding to the radio resource control (RRC) state of the terminal, wherein the forward transformation parameters include parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0015] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0016] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the second aspect, and the network-side device can be used to perform the steps of the method as described in the first aspect.

[0017] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0018] In a thirteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to perform the steps of the method as described in the first or second aspect.

[0019] In this embodiment, the network-side device can send a low-power wake-up signal according to the forward transition parameters and / or the first rule corresponding to the RRC state of the terminal's radio resource control, so that the terminal can distinguish the low-power wake-up signal under different RRC states, and determine whether to perform a wake-up operation when the RRC state to which the low-power wake-up signal is applicable is consistent with its own RRC state, thereby reducing the probability of false wake-up of the terminal. Attached Figure Description

[0020] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application.

[0021] Figure 2This is a schematic diagram of a low-power receiver provided in an embodiment of this application.

[0022] Figure 3 This is a flowchart illustrating a low-power wake-up signal transmission method provided in an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of a transformation process for the first forward transformation provided in the embodiments of this application.

[0024] Figure 5 This is a schematic diagram of another transformation process of the first forward transformation provided in the embodiments of this application.

[0025] Figure 6 This is a schematic diagram of another transformation process of the first forward transformation provided in the embodiments of this application.

[0026] Figure 7 This is a schematic diagram of another transformation process of the first forward transformation provided in the embodiments of this application.

[0027] Figure 8 This is a schematic diagram of a transformation process for the second forward transformation provided in the embodiments of this application.

[0028] Figure 9 This is a schematic diagram of another transformation process of the second forward transformation provided in the embodiments of this application.

[0029] Figure 10 This is a flowchart illustrating a low-power wake-up signal receiving method according to an embodiment of this application.

[0030] Figure 11 This is a schematic diagram of a transformation process for the second inverse transformation provided in the embodiments of this application.

[0031] Figure 12 This is a schematic diagram of another transformation process of the second inverse transformation provided in the embodiments of this application.

[0032] Figure 13 This is a schematic diagram of a low-power wake-up signal transmitting device according to an embodiment of this application.

[0033] Figure 14 This is a schematic diagram of a low-power wake-up signal receiving device according to another embodiment of this application.

[0034] Figure 15 This is a schematic diagram of the structure of a communication device proposed in an embodiment of this application.

[0035] Figure 16 This is a schematic diagram of the structure of a terminal proposed in an embodiment of this application.

[0036] Figure 17This is a schematic diagram of the structure of a network-side device proposed in an embodiment of this application. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc.; an indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0040] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0041] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.In this context, a base station may be referred to as a NodeB (NB), Evolved NodeB (eNB), Next Generation NodeB (gNB), New Radio NodeB (NRNodeB), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home NodeB (HNB), Home Evolved NodeB, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for introduction, and the specific type of base station is not limited.

[0042] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), and Unified Data Warehouse (UDM). The core network equipment includes ataRepository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0043] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0044] Low power receiver, also known as low power wake-up radio (LP-WUR) or near zero power receiver (AZP-WUR). Figure 2 The working principle of the Low Power Wake-Up Receiver (LP-WUR) is illustrated.

[0045] like Figure 2 As shown, the low-power receiver includes a first module 21 and a second module 22. The first module 21 is the main communication module, used for transmitting and receiving mobile communication data. The second module 22 is a low-power receiver module (also called a low-power wake-up receiver module), used to receive the low-power wake-up signal (LPWUS) sent by the transmitter. The low-power wake-up signal is used to wake up the main communication module of the low-power receiver.

[0046] like Figure 2 As shown, when the first module 21 is not woken up by the second module 22, it remains in a closed state, neither sending nor receiving data. When data arrives, the transmitting end sends a wake-up signal to the low-power receiver. After detecting the wake-up signal sent by the transmitting end, the second module 22 of the low-power receiver, through a series of judgments, triggers the first module 21 to switch from the closed state to the working state, enabling data reception and transmission. Simultaneously, the second module transitions from the working state to the closed state. The second module 22 can be continuously or intermittently activated. When activated, the second module 22 can receive low-power wake-up signals.

[0047] The transmitting end is typically a network-side device, and the low-power receiver is typically a terminal. In this embodiment, taking the transmitting end as a network-side device and the low-power receiver as a terminal as an example, the technical solution provided by this embodiment will be described.

[0048] Because the relevant technologies do not distinguish between the low-power wake-up signals of terminals in different RRC states, the terminals have a high false wake-up rate. For example, the low-power wake-up signal sent by the network-side device is intended to wake up the terminal in the RRC connected state to listen to the PDCCH, but it mistakenly wakes up the terminal in the RRC idle / inactive state as well.

[0049] To address the aforementioned issues, this application proposes a low-power wake-up signal transmission method and a low-power wake-up signal reception method. The methods provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0050] like Figure 3 As shown, an embodiment of this application proposes a low-power wake-up signal transmission method, which may include: Step 301: The network-side device sends a low-power wake-up signal according to the positive transition parameters and / or the first rule corresponding to the terminal's Radio Resource Control (RRC) state.

[0051] The network-side device sends a low-power wake-up signal based on the positive transition parameters and / or the first rule corresponding to the terminal's RRC state, which may include the following three cases: 1) The network-side device sends a low-power wake-up signal based on the positive transition parameters corresponding to the terminal's RRC state; 2) The network-side device sends a low-power wake-up signal according to the first rule corresponding to the terminal's RRC status; 3) The network-side device sends a low-power wake-up signal based on the positive transformation parameters corresponding to the terminal's RRC state and the first rule corresponding to the terminal's RRC state.

[0052] The low-power wake-up signal carries the original low-power wake-up information, the forward transformation parameters include the parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rules of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resources.

[0053] The forward transformation parameters and / or the first rule can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0054] The terminal's RRC state includes either RRC connected state or RRC disconnected state. The RRC disconnected state can include RRC idle state or RRC active state.

[0055] In some embodiments, the forward transformation parameters corresponding to the RRC connected state are different from those corresponding to the RRC disconnected state. This allows the terminal to distinguish the RRC state to which the low-power wake-up signal is applicable by using the inverse transformation parameters corresponding to the forward transformation parameters. The corresponding forward transformation parameters and inverse transformation parameters can be the same.

[0056] In such an embodiment, step 301 may include: The network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal, to obtain a low-power wake-up signal suitable for the RRC state. The network-side device sends the low-power wake-up signal.

[0057] The forward transformation parameters may include, but are not limited to, at least one of the following: The first forward transformation parameter includes the scrambling code used in the process of obtaining the low-power wake-up signal from the original low-power wake-up information through the first forward transformation. The first forward transformation includes at least encoding and scrambling. The second forward transformation parameters include a mapping sequence used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping; or, the second forward transformation parameters include a scrambling sequence used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping and sequence scrambling; or, the second forward transformation parameters include an interleaving pattern used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping and sequence interleaving.

[0058] The encoding in the first forward transform may include at least one of the following: Channel coding, including but not limited to one of RM (Reed-Muller) codes, turbo codes, and polar codes; Rate matching; Code point mapping, wherein the code point mapping includes mapping L original low-power wake-up information bits to a code point of length L' (L'>=L), and the mapping relationship between the two can be configured by the network-side device and / or agreed by the protocol; Manchester encoding.

[0059] Based on this, in some embodiments, the network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal to obtain a low-power wake-up signal suitable for the RRC state, which may include: When the low-power wake-up signal includes an on / off key control signal, the network-side device performs the first forward transformation on the original low-power wake-up information according to the first forward transformation parameter corresponding to the RRC state of the terminal to obtain a low-power wake-up information codeword suitable for the RRC state. The first forward transformation includes binary encoding and binary scrambling, and the binary scrambling code corresponding to the RRC connected state is different from the binary scrambling code corresponding to the RRC disconnected state.

[0060] In other embodiments, the network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal to obtain a low-power wake-up signal suitable for the RRC state, which may include: When the low-power wake-up signal includes at least one OFDM signal sequence, the network-side device performs the first forward transformation on the original low-power wake-up information according to the first forward transformation parameter corresponding to the RRC state of the terminal, to obtain at least one OFDM signal sequence suitable for the RRC state. The at least one OFDM signal sequence carries the original low-power wake-up information. The first forward transformation includes binary encoding, binary scrambling, and mapping of binary codewords to the at least one OFDM signal sequence of the original low-power wake-up information. The binary scrambling code corresponding to the RRC connected state is different from the binary scrambling code corresponding to the RRC disconnected state.

[0061] In the two embodiments described above, the binary scrambling code corresponding to the RRC connected state and the binary scrambling code corresponding to the RRC disconnected state can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0062] The two embodiments described above will be illustrated below with specific examples.

[0063] Assumptions: The network-side device sends a low-power wake-up signal carrying the original low-power wake-up information, which is a bit stream of length L, where L can be configured by the network-side device and / or agreed upon by the protocol. Specifically, the original low-power wake-up information (hereinafter referred to as InfBit) applicable to the RRC unconnected state (RRCidle / inactive) contains the group identifier of the terminal subgroup; the original low-power wake-up information (hereinafter referred to as InfBit) applicable to the RRC connected state (RRCconnected) contains the identifier of the terminal or the identifier of the terminal subgroup. The terminal identifier includes the Cell Radio Network Temporary Identify (C-RNTI), the terminal identifier configured by the network-side device for wake-up, and an item from a specific bit position in the bitmap corresponding to the terminal. The terminal subgroup identifier includes the terminal subgroup index and an item from a specific bit position in the bitmap corresponding to the terminal subgroup.

[0064] Then, after the first forward transformation, InfBit obtains a low-power wake-up information codeword / at least one OFDM signal sequence. The obtained low-power wake-up information codeword / at least one OFDM signal sequence can be transmitted on time-frequency resources as a low-power wake-up signal carrying the original low-power wake-up information.

[0065] For example, in one implementation, when the low-power wake-up signal includes an on / off key control signal, such as Figure 4 As shown, the first forward transformation includes channel coding and rate matching, scrambling, and Manchester coding. The channel coding can use linear block codes, such as RM (Reed-Muller) codes. After coding, rate matching can be performed according to the size of the low-power signal transmission resources, and a bit stream of length R1 is output. After scrambling, a bit stream of length S1 is obtained, where S1 = R1. After Manchester coding, a low-power wake-up information codeword of length C1 is obtained and transmitted on the time-frequency resources of the low-power wake-up signal.

[0066] For example, in another implementation, where the low-power wake-up signal includes a power on / off control signal, such as... Figure 5As shown, the first forward transformation includes code point mapping, scrambling, and Manchester encoding. After code point mapping, a bitstream of length R1 is output. After scrambling, a bitstream of length S1 is obtained, where S1 = R1. Manchester encoding yields a low-power wake-up information codeword of length C1, which is transmitted on the time-frequency resources of the low-power wake-up signal. Code point mapping involves mapping the original low-power wake-up information bitstream of length L to code points of length R1 (R1>=L1) to improve transmission reliability. The mapping relationship from the original low-power wake-up information bitstream to the code points can be configured by the network-side device and / or agreed upon by the protocol. As an example, assuming L=3 and R1=8, the original low-power wake-up information bitstream has 2^3=8 possible mappings, which can be mapped to 8 out of 2^8=256 codewords. The network-side configuration or protocol can predefine the 8 possible mappings from the original low-power wake-up information bitstream to the 256 codewords.

[0067] In both implementations described above, during the scrambling stage, different scrambling codes can be used for low-power wake-up signals applicable to RRC connected and RRC disconnected states, resulting in different codewords for the RRC connected and RRC disconnected states. The scrambling codes can be configured by the network-side device and / or agreed upon by the protocol. In one implementation, for low-power wake-up signals applicable to RRC disconnected states, a scrambling code of all zeros can be used, while for low-power wake-up signals applicable to RRC connected states, a scrambling code of all ones can be used. This way, even if the original low-power wake-up information corresponding to the RRC disconnected and RRC connected states is the same, and the bitstream after channel coding and rate matching is the same, different scrambling codes can be used to obtain different scrambled codewords. This allows the terminal to distinguish the RRC state applicable to the low-power wake-up signal using different descrambling codes, with the descrambling code corresponding to the scrambling code. It should be noted that in this example, if the original low-power wake-up information corresponding to the RRC disconnected and RRC connected states is the same, the scrambled bitstreams are orthogonal.

[0068] For example, in one implementation, where the low-power wake-up signal includes at least one OFDM signal sequence, such as... Figure 6As shown, the first forward transformation includes channel coding and rate matching, scrambling, and mapping the bitstream to an OFDM signal sequence. Channel coding can use linear block codes, such as RM (Reed-Muller) codes. After coding, rate matching can be performed according to the size of the low-power signal transmission resources, outputting a bitstream of length R². After scrambling, a bitstream of length S² is obtained. This S² bitstream is then segmented into N² bits, from the most significant bit (MSB) to the least significant bit (LSB), or conversely, the S² bitstream is segmented into... The process from LSB to MSB is segmented into K2 segments, where K = ceil(S2 / N2). The last segment contains less than or equal to N2 bits. Each N2-bit segment is mapped to one of 2^N2 OFDM signal sequences of length P2. The mapping relationship between the N2 bits and the OFDM signal sequence can be configured by the network-side device and / or agreed upon by the protocol. The OFDM signal sequence obtained after mapping each N2-bit segment can be transmitted in one time unit of the low-power wake-up signal. Here, a time unit can be an OFDM symbol, a part of an OFDM symbol, or an OOK symbol (e.g., the on signal of an on / off keying signal). Correspondingly, a terminal with the ability to detect OFDM signal sequences can detect one of the 2^N2 OFDM signal sequences in each time unit of the low-power wake-up signal, determine the N2 bits carried by the sequence, and combine the K2*N2 bits obtained in K2 time units in order from MSB to LSB or vice versa to determine the scrambled bit sequence S2. Different scrambling sequences can be used for the low-power wake-up signals sent in the idle / inactive state and the connected state, so that the scrambled bit streams in the idle / inactive state and the connected state are different. The scrambling sequence is configured by the network-side device and / or agreed upon by the protocol.

[0069] Among them, the 2^N2 OFDM signal sequences of length P2 can be OFDM signal sequences in the time domain or OFDM signal sequences in the frequency domain.

[0070] In the scrambling stage, different scrambling sequences can be used for low-power wake-up signals applicable to RRC connected and RRC disconnected states, resulting in different bitstreams for the two states. The scrambling sequences can be configured by the network-side equipment and / or agreed upon by the protocol. In one implementation, a scrambling sequence of all zeros can be used for low-power wake-up signals applicable to RRC disconnected states, while a scrambling sequence of all one values ​​can be used for low-power wake-up signals applicable to RRC connected states. This way, even if the original low-power wake-up information corresponding to RRC disconnected and RRC connected states is the same, and the bitstreams after channel coding and rate matching are the same, different scrambling sequences can result in different scrambling bitstreams. This ensures that each N2-bit segment mapped after bitstream segmentation and OFDM signal sequence mapping has a different OFDM sequence signal, allowing the terminal to distinguish the applicable RRC state of the low-power wake-up signal through different descrambling sequences, with the descrambling sequence corresponding to the scrambling sequence. It should be noted that in this example, if the original low-power wake-up information corresponding to the RRC disconnected state and the RRC connected state is the same, the scrambled bit streams are orthogonal.

[0071] For example, in one implementation, where the low-power wake-up signal includes at least one OFDM signal sequence, such as... Figure 7As shown, the first forward transformation includes code point mapping, scrambling, and mapping of the bit stream to the OFDM signal sequence. The code point mapping includes mapping the original low-power wake-up information bit stream of length L to code points of length R2 (R2>L2) to improve transmission reliability. The mapping relationship between the original low-power wake-up information bit stream and the code points can be configured by the network-side equipment and / or agreed upon by the protocol. After code point mapping, a bit stream of length R2 is output. As an example, assuming L=3 and R1=8, the original low-power wake-up message bitstream has 2^3=8 possible values, which can be mapped to 8 of the 2^8=256 codewords. The network-side configuration or protocol can predefine the mapping from the 8 original low-power wake-up message bitstreams to the 256 codewords. A bitstream of length R2 is scrambled to obtain a bitstream of length S2. This S2-length bitstream is then segmented into N2 bits from the most significant bit (MSB) to the least significant bit (LSB), or conversely, the S2-length bitstream is segmented into N2 bits from the most significant bit (MSB) to the least significant bit (LSB). The sequence from SB to MSB is segmented into K2 segments, each containing N2 bits, where K = ceil(S2 / N2). The last segment contains less than or equal to N2 bits. Each N2-bit segment is mapped to one of 2^N2 OFDM signal sequences of length P2. The mapping relationship between the N2 bits and the OFDM signal sequences can be configured by the network-side equipment and / or agreed upon by the protocol. The OFDM signal sequence obtained after mapping each N2-bit segment can be transmitted in one time unit of the low-power wake-up signal. Here, a time unit can be an OFDM symbol, a part of an OFDM symbol, or an OOK symbol (e.g., the on signal of an on / off keying signal). Correspondingly, a terminal capable of detecting OFDM signal sequences can detect one of the 2^N2 OFDM signal sequences in each time unit of the low-power wake-up signal, determine the N2 bits carried by that sequence, and combine the K2*N2 bits obtained in K2 time units in order from MSB to LSB or vice versa to determine the scrambled bit sequence S2.

[0072] In the scrambling stage, different scrambling sequences can be used for low-power wake-up signals applicable to RRC connected and RRC disconnected states, resulting in different bitstreams for the two states. The scrambling sequences can be configured by the network-side equipment and / or agreed upon by the protocol. In one implementation, a scrambling sequence of all zeros can be used for low-power wake-up signals applicable to RRC disconnected states, while a scrambling sequence of all one values ​​can be used for low-power wake-up signals applicable to RRC connected states. This way, even if the original low-power wake-up information corresponding to RRC disconnected and RRC connected states is the same, and the bitstream after channel code point mapping is the same, different scrambling sequences can result in different scrambling bitstreams. This ensures that each N2-bit segment mapped after bitstream segmentation and OFDM signal sequence mapping produces a different OFDM sequence signal. Consequently, the terminal can distinguish the applicable RRC state of the low-power wake-up signal using different descrambling sequences, with the descrambling sequence corresponding to the scrambling sequence. It should be noted that in this example, if the original low-power wake-up information corresponding to the RRC disconnected state and the RRC connected state is the same, the scrambled bit streams are orthogonal.

[0073] Among them, the 2^N2 OFDM signal sequences of length P2 can be OFDM signal sequences in the time domain or OFDM signal sequences in the frequency domain.

[0074] In other embodiments, the network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal to obtain a low-power wake-up signal suitable for the RRC state, which may include: When the low-power wake-up signal includes an on / off key control signal, the network-side device performs the second forward transformation on the original low-power wake-up information according to the second forward transformation parameters corresponding to the RRC state of the terminal, to obtain at least one binary sequence applicable to the RRC state. The at least one binary sequence carries the original low-power wake-up information, and the second forward transformation includes a mapping from the original low-power wake-up information to the binary sequence. The binary sequence corresponding to the RRC connected state is different from the binary sequence corresponding to the RRC disconnected state. Alternatively, the second forward transformation includes a mapping from the original low-power wake-up information to the binary sequence and scrambling the binary sequence. The scrambled binary sequence corresponding to the RRC connected state is different from the scrambled binary sequence corresponding to the RRC disconnected state.

[0075] The binary scrambling sequence corresponding to the RRC connected state and the binary scrambling sequence corresponding to the RRC unconnected state can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0076] In other embodiments, the network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal to obtain a low-power wake-up signal suitable for the RRC state, which may include: When the low-power wake-up signal includes at least one OFDM signal sequence, the network-side device performs the second forward transformation on the original low-power wake-up information according to the second forward transformation parameter corresponding to the RRC state of the terminal, to obtain at least one OFDM signal sequence suitable for the RRC state.

[0077] Wherein, the at least one OFDM signal sequence carries original low-power wake-up information, and the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence, wherein the OFDM sequence corresponding to the RRC connected state is different from the OFDM sequence corresponding to the RRC disconnected state; or, the at least one OFDM signal sequence carries original low-power wake-up information, and the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence and scrambling the at least one OFDM signal sequence, wherein the OFDM scrambling sequence corresponding to the RRC connected state is different from the OFDM scrambling sequence corresponding to the RRC disconnected state; or, the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence and interleaving the at least one OFDM signal sequence, wherein the interleaving pattern of the OFDM signal sequence corresponding to the RRC connected state is different from the interleaving pattern of the OFDM signal sequence corresponding to the RRC disconnected state.

[0078] The interleaving pattern of the OFDM sequence corresponding to the RRC connected state and the OFDM sequence corresponding to the RRC unconnected state, or the interleaving pattern of the OFDM scrambling sequence corresponding to the RRC connected state and the OFDM scrambling sequence corresponding to the RRC unconnected state, or the interleaving pattern of the OFDM signal sequence corresponding to the RRC connected state and the OFDM signal sequence corresponding to the RRC unconnected state, can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0079] The two embodiments described above will be illustrated below with specific examples.

[0080] Assumptions: The network-side device sends a low-power wake-up signal carrying the original low-power wake-up information, which is a bit stream of length L, where L can be configured by the network-side device and / or agreed upon by the protocol. Specifically, the original low-power wake-up information (hereinafter referred to as InfBit) applicable to the RRC unconnected state (RRCidle / inactive) contains a group identifier for the terminal subgroup, which includes a terminal subgroup index. The original low-power wake-up information (hereinafter referred to as InfBit) applicable to the RRC connected state (RRCconnected) contains either the terminal identifier or the terminal subgroup identifier. The terminal identifier includes the Cell Radio Network Temporary Identify (C-RNTI), the terminal identifier configured by the network-side device for wake-up, and an item from a specific bit position in the bitmap corresponding to the terminal. The terminal subgroup identifier includes the terminal subgroup index and an item from a specific bit position in the bitmap corresponding to the terminal subgroup.

[0081] Then, after the second forward transformation, InfBit is transformed to obtain at least one binary sequence / at least one OFDM signal sequence. The obtained at least one binary sequence / at least one OFDM signal sequence can be transmitted on time-frequency resources as a low-power wake-up signal carrying the original low-power wake-up information.

[0082] For example, in one implementation, when the low-power wake-up signal includes an on / off key control signal, the second forward transformation may include: mapping InfBit to at least one binary sequence, wherein the at least one binary sequence and the mapping relationship from InfBit to at least one binary sequence may be configured by the network-side device or agreed upon by the protocol, and the binary sequence corresponding to the RRC connected state is different from the set of binary sequences corresponding to the RRC disconnected state, thereby enabling the terminal to distinguish the RRC state to which the low-power wake-up signal is applicable through different binary sequences.

[0083] In one implementation, when the low-power wake-up signal includes a power on / off control signal, such as... Figure 8 As shown, the second forward transformation may include: mapping InfBit to at least one binary sequence, and scrambling the at least one binary sequence obtained by mapping, wherein the at least one binary sequence and the mapping relationship from InfBit to at least one binary sequence may be configured by the network-side device or agreed upon by the protocol; the at least one binary sequence, after scrambling, yields at least one scrambled binary sequence.

[0084] In the scrambling process, the binary scrambling sequence corresponding to the RRC connected state is different from that corresponding to the RRC disconnected state. This results in at least one scrambled binary sequence applicable to the RRC connected state being different from at least one scrambled binary sequence applicable to the RRC disconnected state. Consequently, the terminal can distinguish the applicable RRC state for the low-power wake-up signal using different binary descrambling sequences, where the descrambling sequence corresponds to the scrambling sequence. The binary scrambling sequences corresponding to the RRC connected state and the RRC disconnected state can be configured by the network-side device or agreed upon by the protocol. As an example, the binary scrambling sequence applicable to the RRC disconnected state can be an all-zero scrambling sequence, while the binary scrambling sequence applicable to the RRC connected state can be an all-one scrambling sequence. Therefore, even if the original low-power wake-up information corresponding to the RRC disconnected state and the RRC connected state is the same, and at least one binary sequence after binary sequence mapping is the same, different scrambling sequences can be used to obtain at least one different scrambled binary sequence.

[0085] For example, in another implementation, where the low-power wake-up signal includes at least one OFDM signal sequence, such as... Figure 9 As shown, the second forward transformation may include: mapping the original low-power wake-up information bit stream to an OFDM signal sequence, or the second forward transformation may include: mapping the original low-power wake-up information bit stream to an OFDM signal sequence and scrambling the sequence. Specifically, the InfBit is subjected to the second forward transformation to obtain K2 OFDM signal sequences of length P2, and transmitted on the time-frequency resources of the low-power wake-up signal.

[0086] The OFDM signal sequence can be an M sequence, a gold sequence, or a ZC sequence.

[0087] The mapping relationship between K2 P2-length OFDM signal sequences and InfBit to K2 P2-length OFDM signal sequences can be configured by the network-side equipment or agreed upon by the protocol.

[0088] Specifically, the second forward transformation may include: segmenting the InfBit into N2 bits in order from MSB to LSB or from LSB to MSB, resulting in K2 segments, where K = ceil(S2 / N2); the last segment contains less than or equal to N2 bits, and each N2 bit segment is mapped to one of 2^N2 OFDM signal sequences of length P2. The mapping relationship between N2 bits and OFDM signal sequences can be configured by the network-side device and / or agreed upon by the protocol. The OFDM signal sequence obtained after mapping each N2 bit segment can be transmitted in one time unit of the low-power wake-up signal; and performing scrambling or interleaving on the K2 P2-length OFDM signal sequences to obtain scrambled or interleaved K2 P2-length OFDM signal sequences. Optionally, for low-power wake-up signals applicable to both RRC disconnected and RRC connected states, different scrambling sequences / interleaving patterns can be used, resulting in different OFDM signal sequences applicable to RRC disconnected and RRC connected states after scrambling. The scrambling sequence / interleaving pattern and the descrambling sequence / deinterleaving pattern used on the terminal side can be configured by the network-side equipment or agreed upon by the protocol. On the receiving side, the terminal receives the signal during the transmission time unit of the low-power wake-up signal. First, it descrambles / deinterleaves the received signal, and then correlates the descrambled / deinterleaved sequence with at least one local OFDM signal sequence. When the maximum correlation peak obtained by the sequence correlation meets a preset condition, such as being greater than a threshold, the terminal considers the sequence detection successful, and the RRC state applicable to the low-power wake-up signal is consistent with its own RRC state. The at least one successfully detected OFDM signal sequence can be mapped and combined to obtain the low-power wake-up information. In one example, the length of the low-power wake-up message can be 8 bits. The MSB (4 bits) is mapped to the first group of 16 sequences, and the LSB (4 bits) is mapped to the second group of 16 sequences. Therefore, on the receiving side, the terminal determines the MSB (4 bits) in one of the first group of 16 sequences by detection, and then determines the LSB (4 bits) in one of the second group of 16 sequences by detection. By combining the MSB (4 bits) and LSB (4 bits) together, the complete low-power wake-up message can be obtained.

[0089] In the low-power wake-up signal transmission method proposed in this application, the low-power wake-up signal transmission methods described in the different embodiments above can be used alone or in combination. For example, for a terminal with power button control signal detection capability, a low-power wake-up signal including the power button control signal can be transmitted, specifically through the methods for the power button control signal in the above embodiments (such as...). Figure 4 , Figure 5 or Figure 8The method shown); for terminals with OFDM signal sequence detection capability, a low-power wake-up signal including at least one OFDM signal sequence can be sent, specifically through the method for OFDM signal sequences described in the above embodiments (e.g. Figure 6 , Figure 7 or Figure 9 (The method shown). Additionally, for applications with on / off keying signal detection capability or OFDM signal sequence detection capability, the on / off keying signal and OFDM signal sequence can be superimposed and transmitted. Specifically, this can be achieved by combining the methods for on / off keying signals and OFDM signal sequences described in the above embodiments, for example, by combining... Figure 4 and Figure 6 Send using the method shown.

[0090] Optionally, Figure 3 The method may further include: the network-side device configuring inverse transformation parameters for low-power wake-up signals for RRC states to the terminal, for example configuring inverse transformation parameters for low-power wake-up signals for RRC connected states and / or RRC disconnected states, wherein the inverse transformation parameters are parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the inverse transformation parameters corresponding to the same RRC state correspond to the forward transformation parameters, so that the terminal can detect the received low-power wake-up signal and thereby determine the RRC state to which the received low-power wake-up signal is applicable.

[0091] Optionally, the inverse transformation parameters may include at least one of the following: The first inverse transformation parameter includes the descrambling code used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the first inverse transformation. The first inverse transformation includes codeword descrambling and decoding. The second inverse transformation parameters include the demapping sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence demapping; or, the second inverse transformation parameters include the descrambling sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence descrambling and sequence demapping; or, the second inverse transformation parameters include the deinterleaving pattern used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence deinterleaving and sequence demapping.

[0092] In some other embodiments, step 301 may include: the network-side device sending a low-power wake-up signal according to a first rule corresponding to the terminal's RRC state, wherein the first rule includes the sending rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0093] As an example, the transmission rule may include: when the first transmission resource set and the second transmission resource set at least partially overlap, the transmission resources in the overlapping portion are valid for the low-power wake-up signal corresponding to the first RRC state but invalid for the low-power wake-up signal corresponding to the second RRC state.

[0094] Wherein, the first transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the first RRC state, the second transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the second RRC state, the first RRC state is one of RRC connected state and RRC disconnected state, and the second RRC state is the other of RRC connected state and RRC disconnected state.

[0095] Specifically, the low-power wake-up signal transmission resources may include at least one of the time-domain resource location and the frequency-domain resource location of the low-power wake-up signal transmission.

[0096] Optionally, the low-power wake-up signal transmission resource set includes multiple candidate transmission resources that repeat periodically, with at least one candidate transmission resource included in one period.

[0097] Based on this, the network-side device sends a low-power wake-up signal according to the first rule corresponding to the terminal's RRC state, which may include: the network-side device only sends a low-power wake-up signal applicable to the first RRC state on the transmission resources of the overlapping part, and does not send a low-power wake-up signal applicable to the second RRC state.

[0098] In some embodiments, the first RRC state is an RRC disconnected state, and the second RRC state is an RRC connected state. In this case, the network-side device only sends a low-power wake-up signal suitable for the RRC disconnected state on the transmission resources of the overlapping portion, and does not send a low-power wake-up signal suitable for the RRC connected state.

[0099] Optionally, Figure 3 The method shown may further include: the network-side device configuring low-power wake-up signal transmission parameters for the first RRC state and / or the second RRC state to the terminal.

[0100] The low-power wake-up signal transmission parameters include at least one of the following: The length of a transmission time unit of a low-power wake-up signal; The subcarrier spacing (SCS) used to generate the low-power wake-up signal. The length of the OFDM symbol used to generate the low-power wake-up signal and the value of M are used to indicate the number of transmission time units of the low-power wake-up signal contained in an OFDM symbol. The terminal can determine the length of a transmission time unit by the length of the SCS or OFDM symbol and the value of M.

[0101] Optionally, the first rule may further include: the length of the transmission time unit of the low-power wake-up signal for the first RRC state is equal to the length of the transmission time unit of the low-power wake-up signal for the second RRC state.

[0102] The transmission time unit is the smallest time unit used to send a low-power wake-up signal. The length of a transmission time unit can be one of the following: The length of an OFDM symbol; The length of a portion of an OFDM symbol; The length of an OOK symbol.

[0103] For example, the network-side device can configure a transmission resource set 1 for the terminal to listen for low-power wake-up signals in the RRC connectionless state. Transmission resource set 1 contains multiple candidate transmission resources that repeat periodically, and contains at least one candidate transmission resource in one period. The network-side device also configures the transmission parameters of the low-power wake-up signal in the RRC connectionless state for the terminal, including the length of a transmission time unit of the low-power wake-up signal, the SCS used to generate the low-power wake-up signal, the length of an OFDM symbol used to generate the low-power wake-up signal, and the M value. The M value is used to indicate that an OFDM symbol contains M transmission time units of low-power wake-up signals. The terminal can determine the length of a transmission time unit through the SCS or the length of the OFDM symbol and the M value.

[0104] Similarly, the network-side device can configure a transmission resource set 2 for the terminal to listen for low-power wake-up signals in RRC connected state. Transmission resource set 2 contains multiple candidate transmission resources that repeat periodically, and contains at least one candidate transmission resource in one period. The network-side device also configures the transmission parameters of the low-power wake-up signal in RRC connected state for the terminal, including the length of a transmission time unit of the low-power wake-up signal, the SCS used to generate the low-power wake-up signal, the length of an OFDM symbol used to generate the low-power wake-up signal, and the M value. The M value is used to indicate that an OFDM symbol contains M transmission time units of low-power wake-up signals. The terminal can determine the length of a transmission time unit through the SCS or the length of the OFDM symbol and the M value.

[0105] In addition, the first rule for low-power wake-up signals applicable to different RRC states, as stipulated in the protocol or configured by the network-side equipment, may specifically include: if both conditions 1) and 2) are met, the terminal considers the overlapping transmission positions in low-power wake-up signal transmission resource set 1 and low-power wake-up signal transmission resource set 2 to be invalid for the RRC connection state, and the terminal does not listen to low-power wake-up signals for the RRC connection state at these overlapping transmission positions.

[0106] Condition 1) At least one transmission location in the low-power wake-up signal transmission resource set 1 corresponding to the RRC non-connected state partially or completely overlaps with at least one transmission location in the low-power wake-up signal transmission resource set 2 corresponding to the RRC connected state.

[0107] Condition 2) The length of a transmission time unit for the low-power wake-up signal applicable to the RRC non-connected state is equal to the length of a transmission time unit for the low-power wake-up signal applicable to the RRC connected state. When conditions 1) and 2) are both satisfied, the terminal considers at least one transmission position of the connected state that partially or completely overlaps with the idle / inactive state to be invalid, and the terminal does not listen for the low-power wake-up signal for the RRC connected state at the invalid RRC connected state low-power wake-up signal transmission position.

[0108] This application proposes a low-power wake-up signal transmission method. Since the network-side device can transmit the low-power wake-up signal according to the forward transformation parameters and / or the first rule corresponding to the terminal's RRC state, where the forward transformation parameters include parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rules for the low-power wake-up signal corresponding to the low-power wake-up signal transmission resources, the terminal can distinguish low-power wake-up signals under different RRC states. Furthermore, if the RRC state to which the low-power wake-up signal applies matches the terminal's own RRC state, the terminal can determine whether to perform a wake-up operation, thus reducing the probability of false wake-up.

[0109] Corresponding to the aforementioned low-power wake-up signal transmission method, this application also proposes a low-power wake-up signal reception method, such as... Figure 10 As shown, the method may include: Step 1001: The terminal receives a low-power wake-up signal based on the inverse transformation parameters and / or the first rule corresponding to its own radio resource control RRC state.

[0110] The reverse transformation parameters include the parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0111] The inverse transformation parameters and / or the first rule can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0112] The terminal's RRC state includes either RRC connected state or RRC disconnected state. The RRC disconnected state can include RRC idle state or RRC active state.

[0113] In some embodiments, the reverse transformation parameters corresponding to the RRC connected state are different from the transformation parameters corresponding to the RRC disconnected state, which allows the terminal to distinguish the RRC state to which the low-power wake-up signal is applicable through the transformation parameters.

[0114] In such an embodiment, step 1001 may include: The terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state. If the transformation is successful and the original low-power wake-up information is obtained, it is determined that the RRC state applicable to the low-power wake-up signal is consistent with its own RRC state. If the RRC state applicable to the low-power wake-up signal is consistent with its own RRC state, the terminal determines whether to perform a wake-up operation based on the original low-power wake-up information.

[0115] It should be noted that the process of transforming the low-power wake-up signal into the original low-power wake-up information is the reverse or opposite process of the process of transforming the original low-power wake-up information into the low-power wake-up signal described above, and the transformation parameters used in the two processes correspond to each other.

[0116] In some embodiments, the inverse transformation parameters may include at least one of the following: The first inverse transformation parameter includes the descrambling code used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the first inverse transformation. The first inverse transformation includes codeword descrambling and decoding. The second inverse transformation parameters include the demapping sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence demapping; or, the second inverse transformation parameters include the descrambling sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence descrambling and sequence demapping; or, the second inverse transformation parameters include the deinterleaving pattern used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence deinterleaving and sequence demapping.

[0117] The first inverse transformation is the inverse of the first forward transformation described above, and the parameters of the first inverse transformation correspond to the parameters of the first forward transformation described above. The second inverse transformation is the inverse of the second forward transformation described above, and the parameters of the second inverse transformation correspond to the parameters of the second forward transformation described above. These will be explained in detail below through specific embodiments.

[0118] Corresponding to the encoding method in the first forward transform, the decoding in the first inverse transform may include at least one of the following: Channel decoding; De-rate matching; Codeword demapping; Manchester Decoded.

[0119] In some embodiments, the terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, which may include: When the low-power wake-up signal includes an on / off key control signal, the terminal performs the first inverse transformation on the received low-power wake-up signal according to the first inverse transformation parameters corresponding to its own RRC state. The first inverse transformation includes binary codeword descrambling and binary codeword decoding. The binary descrambling code corresponding to the RRC connected state is different from the binary descrambling code corresponding to the RRC disconnected state.

[0120] For example, in one implementation, when the low-power wake-up signal includes an on / off key control signal, and... Figure 4 The first forward transformation shown is the opposite of the first reverse transformation, which may include Manchester decoding, descrambling, channel decoding, and rate matching removal. Specifically, for a received low-power wake-up information codeword of length C1, Manchester decoding yields a bitstream of length S1, and descrambling the bitstream of length S1 yields a bitstream of length R1.

[0121] For example, in another implementation, when the low-power wake-up signal includes a power on / off control signal, and... Figure 5 The first forward transform shown is the opposite of the first inverse transform, which may include Manchester decoding, descrambling, and codeword demapping.

[0122] In both implementation methods described above, the descrambling code can be configured by the network-side device and / or agreed upon by the protocol. It is understood that since the descrambling codes for low-power wake-up signals applicable to RRC connected and RRC disconnected states are different, the RRC state to which the received low-power wake-up signal applies can be distinguished through the descrambling code.

[0123] In other embodiments, the terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, which may include: When the low-power wake-up signal includes at least one OFDM signal sequence, the terminal performs the first inverse transformation on the received low-power wake-up signal according to the first inverse transformation parameters corresponding to its own RRC state. The first inverse transformation includes demapping the at least one OFDM signal to a binary codeword, descrambling the binary codeword, and decoding the binary codeword. The binary descrambling code corresponding to the RRC connected state is different from the binary descrambling code corresponding to the RRC disconnected state.

[0124] For example, in one implementation, where the low-power wake-up signal includes at least one OFDM signal sequence, and... Figure 6 The first forward transformation shown is the opposite of the first reverse transformation, which may include: mapping OFDM signal sequences to bit streams (binary sequences), sequence descrambling, channel decoding, and rate matching removal.

[0125] For example, in another implementation, where the low-power wake-up signal includes at least one OFDM signal sequence, and... Figure 7 The first forward transformation shown is the opposite of the first inverse transformation, which may include: mapping of OFDM signal sequences to bit streams (binary sequences), sequence descrambling, and codeword demapping.

[0126] In both implementation methods described above, the descrambling sequence used during the sequence descrambling process can be configured by the network-side device and / or agreed upon by the protocol. It is understood that since the descrambling sequences applicable to low-power wake-up signals in RRC connected and RRC disconnected states are different, the RRC state to which the received low-power wake-up signal applies can be distinguished through the descrambling sequence.

[0127] In other embodiments, the terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, which may include: When the low-power wake-up signal includes an on / off key control signal, the terminal performs the second inverse transformation on the received low-power wake-up signal according to the second inverse transformation parameters corresponding to its own RRC state. The second inverse transformation includes demapping the binary sequence to the original low-power wake-up information, and the binary sequence corresponding to the RRC connected state is different from the binary sequence corresponding to the RRC disconnected state. Alternatively, the second inverse transformation includes descrambling the binary sequence and demapping the binary sequence to the original low-power wake-up information, and the binary descrambling sequence corresponding to the RRC connected state is different from the binary descrambling sequence corresponding to the RRC disconnected state.

[0128] For example, in one implementation, when the low-power wake-up signal includes a power on / off control signal, such as... Figure 11 As shown, with Figure 8 The second forward transformation shown is the opposite of the second inverse transformation, which may include: at least one binary sequence descrambling and at least one binary sequence mapping to the original low-power wake-up information bit stream.

[0129] Specifically, the terminal can receive the signal during the transmission time unit of the low-power wake-up signal. First, the received signal is descrambled. Then, the descrambled binary sequence is correlated with at least one local binary sequence. When the maximum correlation peak obtained from the sequence correlation meets a preset condition, such as exceeding a threshold, the terminal considers the sequence detection successful. The terminal then maps and combines the at least one successfully detected sequence to obtain the low-power wake-up information. In one implementation example, the length of the low-power wake-up information is 8 bits. The 4 bits of the MSB are mapped to the first group of 16 sequences, and the 4 bits of the LSB are mapped to the second group of 16 sequences. Therefore, on the receiving side, the terminal determines the 4 bits of the MSB in one of the first group of 16 sequences by detection, and then determines the 4 bits of the LSB in one of the second group of 16 sequences by detection. Combining the 4 bits of the MSB and the 4 bits of the LSB together yields the complete low-power wake-up information.

[0130] The descrambling sequence used in the binary sequence descrambling process can be configured by the network-side device and / or agreed upon by the protocol. It is understood that since the binary descrambling sequences applicable to the low-power wake-up signal in the RRC connected state and the RRC disconnected state are different, the RRC state to which the received low-power wake-up signal applies can be distinguished through the binary descrambling sequence.

[0131] In other embodiments, the terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, which may include: When the low-power wake-up signal includes at least one OFDM signal sequence, the terminal performs the second inverse transformation on the received low-power wake-up signal according to the second inverse transformation parameters corresponding to its own RRC state.

[0132] Wherein, the second inverse transformation includes demapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the OFDM sequence corresponding to the RRC connected state is different from the OFDM signal sequence corresponding to the RRC disconnected state; or, the second inverse transformation includes descrambling the at least one OFDM signal sequence and mapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the descrambling sequence of the OFDM signal sequence corresponding to the RRC connected state is different from the descrambling sequence of the OFDM signal sequence corresponding to the RRC disconnected state; or, the second inverse transformation includes deinterleaving the at least one OFDM signal sequence and mapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the deinterleaving pattern of the OFDM signal sequence corresponding to the RRC connected state is different from the deinterleaving pattern of the OFDM signal sequence corresponding to the RRC disconnected state.

[0133] For example, in one implementation, where the low-power wake-up signal includes at least one OFDM signal sequence, such as Figure 12 As shown, with Figure 9 The second forward transformation shown is the opposite of the second reverse transformation, which may include: descrambling / deinterleaving of the OFDM signal sequence and mapping of the OFDM signal sequence to the original low-power wake-up information bit stream.

[0134] The descrambling / deinterleaving patterns used in the OFDM signal sequence descrambling / deinterleaving process can be configured by the network-side equipment and / or agreed upon by the protocol. It is understood that since the descrambling / deinterleaving patterns of the OFDM signal sequences applicable to low-power wake-up signals in RRC connected and RRC disconnected states are different, the RRC state to which the received low-power wake-up signal applies can be distinguished by the descrambling / deinterleaving patterns of the OFDM signal sequences.

[0135] Optionally, Figure 10 The method shown may further include: the terminal receiving the reverse transformation parameters configured by the network-side device for the RRC state.

[0136] In some other embodiments, step 1001 may include: the terminal sending a low-power wake-up signal according to a first rule corresponding to the terminal's RRC state, wherein the first rule includes a rule for sending low-power wake-up signals corresponding to low-power wake-up signal transmission resources.

[0137] As an example, the transmission rule may include: when the first transmission resource set and the second transmission resource set at least partially overlap, the transmission resources in the overlapping portion are valid for the low-power wake-up signal corresponding to the first RRC state but invalid for the low-power wake-up signal corresponding to the second RRC state.

[0138] Wherein, the first transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the first RRC state, the second transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the second RRC state, the first RRC state is one of RRC connected state and RRC disconnected state, and the second RRC state is the other of RRC connected state and RRC disconnected state.

[0139] Specifically, the low-power wake-up signal transmission resources may include at least one of the time-domain resource location and the frequency-domain resource location of the low-power wake-up signal transmission.

[0140] Optionally, the low-power wake-up signal transmission resource set includes multiple candidate transmission resources that repeat periodically, with at least one candidate transmission resource included in one period.

[0141] Based on this, the terminal sends a low-power wake-up signal according to the first rule corresponding to the terminal's RRC state, which may include: the terminal only listens for the low-power wake-up signal corresponding to the first RRC state on the transmission resources of the overlapping part.

[0142] In some embodiments, the first RRC state is an RRC disconnected state, and the second RRC state is an RRC connected state. In this case, the terminal only listens for the low-power wake-up signal corresponding to the RRC disconnected state on the transmission resources of the overlapping portion, and does not listen for the low-power wake-up signal corresponding to the RRC connected state.

[0143] Optionally, Figure 10 The method shown may further include: the terminal receiving low-power wake-up signal transmission parameters configured by the network-side device for the first RRC state and / or the second RRC state.

[0144] The low-power wake-up signal transmission parameters include at least one of the following: The length of a transmission time unit of a low-power wake-up signal; The SCS used to generate the low-power wake-up signal; The length of the OFDM symbol used to generate the low-power wake-up signal and the value of M, where the value of M indicates the number of transmission time units of the low-power wake-up signal contained in an OFDM symbol.

[0145] Optionally, the first rule may further include: the length of the transmission time unit of the low-power wake-up signal for the first RRC state is equal to the length of the transmission time unit of the low-power wake-up signal for the second RRC state.

[0146] The transmission time unit is the smallest time unit used to send a low-power wake-up signal. The length of a transmission time unit can be one of the following: The length of an OFDM symbol; The length of a portion of an OFDM symbol; The length of an OOK symbol.

[0147] The low-power wake-up signal transmission method proposed in this application allows the terminal to receive the low-power wake-up signal according to the transformation parameters and / or first rule corresponding to its own RRC state. The inverse transformation parameters include the parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, so that the terminal can distinguish the low-power wake-up signal under different RRC states and determine whether to perform a wake-up operation when the RRC state to which the low-power wake-up signal is applicable is consistent with its own RRC state. Therefore, the probability of false wake-up of the terminal can be reduced.

[0148] This application provides a low-power wake-up signal sending method and a low-power wake-up signal receiving method, the execution subject of which can be a virtual device. This application uses a virtual device executing a low-power wake-up signal sending method as an example to illustrate the low-power wake-up signal sending device provided in this application, and uses a virtual device executing a low-power wake-up signal receiving method as an example to illustrate the low-power wake-up signal receiving device provided in this application.

[0149] like Figure 13 As shown, one embodiment of this application proposes a low-power wake-up signal transmitter 1300, which can be used in network-side devices. The device 1300 may include: a first transmitting module 1301, used to transmit a low-power wake-up signal according to the transformation parameters and / or first rules corresponding to the Radio Resource Control (RRC) state of the terminal.

[0150] The first sending module 1301 sends a low-power wake-up signal according to the positive transformation parameters corresponding to the RRC state of the terminal and / or the first rule, which may include the following three cases: 1) The first transmitting module 1301 transmits a low-power wake-up signal according to the positive transformation parameters corresponding to the RRC state of the terminal; 2) The first sending module 1301 sends a low-power wake-up signal according to the first rule corresponding to the RRC status of the terminal; 3) The first sending module 1301 sends a low-power wake-up signal according to the positive transformation parameters corresponding to the RRC state of the terminal and the first rule corresponding to the RRC state of the terminal.

[0151] The low-power wake-up signal carries the original low-power wake-up information, the forward transformation parameters include the parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rules of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resources.

[0152] The forward transformation parameters and / or the first rule can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0153] The terminal's RRC state includes either RRC connected state or RRC disconnected state. The RRC disconnected state can include RRC idle state or RRC active state.

[0154] In some embodiments, the forward transformation parameters corresponding to the RRC connected state are different from those corresponding to the RRC disconnected state. This allows the terminal to distinguish the RRC state to which the low-power wake-up signal is applicable by using the inverse transformation parameters corresponding to the forward transformation parameters. The corresponding forward transformation parameters and inverse transformation parameters can be the same.

[0155] In such an embodiment, the first sending module 1301 can be used to: transform the original low-power wake-up information according to the positive transformation parameters corresponding to the RRC state of the terminal to obtain a low-power wake-up signal suitable for the RRC state, and send the low-power wake-up signal.

[0156] The forward transformation parameter may include, but is not limited to, one of the following: The first forward transformation parameter includes the scrambling code used in the process of obtaining the low-power wake-up signal from the original low-power wake-up information through the first forward transformation. The first forward transformation includes at least encoding and scrambling. The second forward transformation parameters include a mapping sequence used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping; or, the second forward transformation parameters include a scrambling sequence used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping and sequence scrambling; or, the second forward transformation parameters include an interleaving pattern used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping and sequence interleaving.

[0157] The encoding in the first forward transform may include at least one of the following: Channel coding, including but not limited to one of RM (Reed-Muller) codes, turbo codes, and polar codes; Rate matching; Code point mapping, wherein the code point mapping includes mapping L original low-power wake-up information bits to a code point of length L' (L'>=L), and the mapping relationship between the two can be configured by the network-side device and / or agreed by the protocol; Manchester encoding.

[0158] Based on this, in some embodiments, the first sending module 1301 can be specifically used to: when the low-power wake-up signal includes an on / off key control signal, perform the first forward transformation on the original low-power wake-up information according to the first forward transformation parameter corresponding to the RRC state of the terminal, to obtain a low-power wake-up information codeword suitable for the RRC state, wherein the first forward transformation includes binary encoding and binary scrambling, and the binary scrambling code corresponding to the RRC connected state is different from the binary scrambling code corresponding to the RRC unconnected state.

[0159] In other embodiments, the first transmitting module 1301 may be specifically used to: when the low-power wake-up signal includes at least one OFDM signal sequence, perform the first forward transformation on the original low-power wake-up information according to the first forward transformation parameter corresponding to the RRC state of the terminal, to obtain at least one OFDM signal sequence suitable for the RRC state, wherein the at least one OFDM signal sequence carries the original low-power wake-up information, and the first forward transformation includes binary encoding, binary scrambling, and mapping of binary codewords to the at least one OFDM signal sequence of the original low-power wake-up information, and the binary scrambling code corresponding to the RRC connected state is different from the binary scrambling code corresponding to the RRC unconnected state.

[0160] The binary scrambling code corresponding to the RRC connected state and the binary scrambling code corresponding to the RRC disconnected state can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0161] In other embodiments, the first transmitting module 1301 may specifically be used to: when the low-power wake-up signal includes an on / off key control signal, perform a second forward transformation on the original low-power wake-up information according to the second forward transformation parameters corresponding to the RRC state of the terminal, to obtain at least one binary sequence suitable for the RRC state, wherein the at least one binary sequence carries the original low-power wake-up information, the second forward transformation includes a mapping from the original low-power wake-up information to the binary sequence, and the binary sequence corresponding to the RRC connected state is different from the binary sequence corresponding to the RRC disconnected state; or, the second forward transformation includes a mapping from the original low-power wake-up information to the binary sequence and scrambling of the binary sequence, and the binary scrambling sequence corresponding to the RRC connected state is different from the binary scrambling sequence corresponding to the RRC disconnected state.

[0162] The binary scrambling sequence corresponding to the RRC connected state and the binary scrambling sequence corresponding to the RRC unconnected state can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0163] In other embodiments, the first transmitting module 1301 may be specifically used to: when the low-power wake-up signal includes at least one OFDM signal sequence, perform the second forward transformation on the original low-power wake-up information according to the second forward transformation parameter corresponding to the RRC state of the terminal, to obtain at least one OFDM signal sequence suitable for the RRC state.

[0164] Wherein, the at least one OFDM signal sequence carries original low-power wake-up information, and the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence, wherein the OFDM sequence corresponding to the RRC connected state is different from the OFDM sequence corresponding to the RRC disconnected state; or, the at least one OFDM signal sequence carries original low-power wake-up information, and the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence and scrambling the at least one OFDM signal sequence, wherein the OFDM scrambling sequence corresponding to the RRC connected state is different from the OFDM scrambling sequence corresponding to the RRC disconnected state; or, the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence and interleaving the at least one OFDM signal sequence, wherein the interleaving pattern of the OFDM signal sequence corresponding to the RRC connected state is different from the interleaving pattern of the OFDM signal sequence corresponding to the RRC disconnected state.

[0165] The interleaving pattern of the OFDM sequence corresponding to the RRC connected state and the OFDM sequence corresponding to the RRC unconnected state, or the interleaving pattern of the OFDM scrambling sequence corresponding to the RRC connected state and the OFDM scrambling sequence corresponding to the RRC unconnected state, or the interleaving pattern of the OFDM signal sequence corresponding to the RRC connected state and the OFDM signal sequence corresponding to the RRC unconnected state, can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0166] Optionally, Figure 13 The device shown may further include: a transformation parameter configuration module, configured to configure inverse transformation parameters for the low-power wake-up signal for the RRC state to the terminal, wherein the inverse transformation parameters are parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the inverse transformation parameters corresponding to the same RRC state correspond to the forward transformation parameters, so that the terminal can detect the received low-power wake-up signal and thus determine the RRC state to which the received low-power wake-up signal is applicable.

[0167] Optionally, the inverse transformation parameters may include at least one of the following: The first inverse transformation parameter includes the descrambling code used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the first inverse transformation. The first inverse transformation includes codeword descrambling and decoding. The second inverse transformation parameters include the demapping sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence demapping; or, the second inverse transformation parameters include the descrambling sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence descrambling and sequence demapping; or, the second inverse transformation parameters include the deinterleaving pattern used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence deinterleaving and sequence demapping.

[0168] In other embodiments, the first sending module 1301 may be specifically used to: send a low-power wake-up signal according to a first rule corresponding to the RRC state of the terminal, wherein the first rule includes the sending rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0169] As an example, the transmission rule may include: when the first transmission resource set and the second transmission resource set at least partially overlap, the transmission resources in the overlapping portion are valid for the low-power wake-up signal corresponding to the first RRC state but invalid for the low-power wake-up signal corresponding to the second RRC state.

[0170] Wherein, the first transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the first RRC state, the second transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the second RRC state, the first RRC state is one of RRC connected state and RRC disconnected state, and the second RRC state is the other of RRC connected state and RRC disconnected state.

[0171] Specifically, the low-power wake-up signal transmission resources may include at least one of the time-domain resource location and the frequency-domain resource location of the low-power wake-up signal transmission.

[0172] Optionally, the low-power wake-up signal transmission resource set includes multiple candidate transmission resources that repeat periodically, with at least one candidate transmission resource included in one period.

[0173] Based on this, the first transmitting module 1301 can be specifically used to: transmit only a low-power wake-up signal suitable for the first RRC state on the transmission resources of the overlapping part, and not transmit a low-power wake-up signal suitable for the second RRC state.

[0174] In some embodiments, the first RRC state is an RRC disconnected state, and the second RRC state is an RRC connected state. In this case, the network-side device only sends a low-power wake-up signal suitable for the RRC disconnected state on the transmission resources of the overlapping portion, and does not send a low-power wake-up signal suitable for the RRC connected state.

[0175] Optionally, Figure 13 The apparatus shown may further include: a configuration module for configuring low-power wake-up signal transmission parameters for the terminal for the first RRC state and / or the second RRC state.

[0176] The low-power wake-up signal transmission parameters include at least one of the following: The length of a transmission time unit of a low-power wake-up signal; The subcarrier spacing (SCS) used to generate the low-power wake-up signal. The length of the OFDM symbol used to generate the low-power wake-up signal and the value of M are used to indicate the number of transmission time units of the low-power wake-up signal contained in an OFDM symbol. The terminal can determine the length of a transmission time unit by the length of the SCS or OFDM symbol and the value of M.

[0177] Optionally, the first rule may further include: the length of the transmission time unit of the low-power wake-up signal for the first RRC state is equal to the length of the transmission time unit of the low-power wake-up signal for the second RRC state.

[0178] The transmission time unit is the smallest time unit used to send a low-power wake-up signal. The length of a transmission time unit can be one of the following: The length of an OFDM symbol; The length of a portion of an OFDM symbol; The length of an OOK symbol.

[0179] The low-power wake-up signal transmitting device 1300 provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0180] like Figure 14 As shown, one embodiment of this application proposes a low-power wake-up signal receiving device 1400, which can be used in a terminal. The device 1400 may include: a first receiving module 1401, used to receive a low-power wake-up signal according to the inverse transformation parameters corresponding to the Radio Resource Control (RRC) state of the terminal and / or a first rule.

[0181] The reverse transformation parameters include the parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0182] The inverse transformation parameters and / or the first rule can be determined by at least one of the following: Network-side device configuration; As stipulated in the agreement.

[0183] The terminal's RRC state includes either RRC connected state or RRC disconnected state. The RRC disconnected state can include RRC idle state or RRC active state.

[0184] In some embodiments, the reverse transformation parameters corresponding to the RRC connected state are different from the transformation parameters corresponding to the RRC disconnected state, which allows the terminal to distinguish the RRC state to which the low-power wake-up signal is applicable through the transformation parameters.

[0185] In such an embodiment, the first receiving module 1401 can be used to: transform the received low-power wake-up signal according to the inverse transformation parameter corresponding to the terminal's own RRC state; if the transformation successfully obtains the original low-power wake-up information, determine that the RRC state applicable to the low-power wake-up signal is consistent with its own RRC state; if the RRC state applicable to the low-power wake-up signal is consistent with its own RRC state, determine whether to perform a wake-up operation according to the original low-power wake-up information.

[0186] It should be noted that the process of transforming the low-power wake-up signal into the original low-power wake-up information is the reverse or opposite process of the process of transforming the original low-power wake-up information into the low-power wake-up signal described above, and the transformation parameters used in the two processes correspond to each other.

[0187] In some embodiments, the inverse transformation parameters may include one of the following: The first inverse transformation parameter includes the descrambling code used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the first inverse transformation. The first inverse transformation includes codeword descrambling and decoding. The second inverse transformation parameters include the demapping sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence demapping; or, the second inverse transformation parameters include the descrambling sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence descrambling and sequence demapping; or, the second inverse transformation parameters include the deinterleaving pattern used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence deinterleaving and sequence demapping.

[0188] The first inverse transformation is the inverse of the first forward transformation described above, and the parameters of the first inverse transformation correspond to the parameters of the first forward transformation described above. The second inverse transformation is the inverse of the second forward transformation described above, and the parameters of the second inverse transformation correspond to the parameters of the second forward transformation described above. These will be explained in detail below through specific embodiments.

[0189] Corresponding to the encoding method in the first forward transform, the decoding in the first inverse transform may include at least one of the following: Channel decoding; De-rate matching; Codeword demapping; Manchester Decoded.

[0190] In some embodiments, the first receiving module 1401 can be specifically used to: when the low-power wake-up signal includes an on / off key control signal, perform the first inverse transformation on the received low-power wake-up signal according to the first inverse transformation parameters corresponding to the terminal's own RRC state, wherein the first inverse transformation includes binary codeword descrambling and binary codeword decoding, and the binary descrambling code corresponding to the RRC connected state is different from the binary descrambling code corresponding to the RRC unconnected state.

[0191] In some embodiments, the first receiving module 1401 can be specifically used to: when the low-power wake-up signal includes at least one OFDM signal sequence, perform the first inverse transformation on the received low-power wake-up signal according to the first inverse transformation parameter corresponding to the terminal's own RRC state, wherein the first inverse transformation includes demapping the at least one OFDM signal to binary codeword, descrambling the binary codeword, and decoding the binary codeword, and the binary descrambling code corresponding to the RRC connected state is different from the binary descrambling code corresponding to the RRC unconnected state.

[0192] In some embodiments, the first receiving module 1401 may be specifically used to: when the low-power wake-up signal includes an on / off key control signal, perform the second inverse transformation on the received low-power wake-up signal according to the second inverse transformation parameters corresponding to the terminal's own RRC state, wherein the second inverse transformation includes demapping the binary sequence to the original low-power wake-up information, and the binary sequence corresponding to the RRC connected state is different from the binary sequence corresponding to the RRC disconnected state; or, the second inverse transformation includes descrambling the binary sequence and demapping the binary sequence to the original low-power wake-up information, and the binary descrambling sequence corresponding to the RRC connected state is different from the binary descrambling sequence corresponding to the RRC disconnected state.

[0193] In some embodiments, the first receiving module 1401 may be specifically used to: when the low-power wake-up signal includes at least one OFDM signal sequence, perform the second inverse transformation on the received low-power wake-up signal according to the second inverse transformation parameter corresponding to the terminal's own RRC state.

[0194] Wherein, the second inverse transformation includes demapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the OFDM sequence corresponding to the RRC connected state is different from the OFDM signal sequence corresponding to the RRC disconnected state; or, the second inverse transformation includes descrambling the at least one OFDM signal sequence and mapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the descrambling sequence of the OFDM signal sequence corresponding to the RRC connected state is different from the descrambling sequence of the OFDM signal sequence corresponding to the RRC disconnected state; or, the second inverse transformation includes deinterleaving the at least one OFDM signal sequence and mapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the deinterleaving pattern of the OFDM signal sequence corresponding to the RRC connected state is different from the deinterleaving pattern of the OFDM signal sequence corresponding to the RRC disconnected state.

[0195] Optionally, Figure 14 The apparatus shown may further include: a second receiving module for receiving the reverse transformation parameters configured by the network-side device for the RRC state.

[0196] In other embodiments, the first receiving module 1401 may be used to: send a low-power wake-up signal according to a first rule corresponding to the terminal's own RRC state, wherein the first rule includes the sending rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0197] As an example, the transmission rule may include: when the first transmission resource set and the second transmission resource set at least partially overlap, the transmission resources in the overlapping portion are valid for the low-power wake-up signal corresponding to the first RRC state but invalid for the low-power wake-up signal corresponding to the second RRC state.

[0198] Wherein, the first transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the first RRC state, the second transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the second RRC state, the first RRC state is one of RRC connected state and RRC disconnected state, and the second RRC state is the other of RRC connected state and RRC disconnected state.

[0199] Specifically, the low-power wake-up signal transmission resources may include at least one of the time-domain resource location and the frequency-domain resource location of the low-power wake-up signal transmission.

[0200] Optionally, the low-power wake-up signal transmission resource set includes multiple candidate transmission resources that repeat periodically, with at least one candidate transmission resource included in one period.

[0201] Based on this, the first receiving module 1401 can be specifically used to: listen only to the low-power wake-up signal corresponding to the first RRC state on the transmission resources of the overlapping part.

[0202] In some embodiments, the first RRC state is an RRC disconnected state, and the second RRC state is an RRC connected state. In this case, the terminal only listens for the low-power wake-up signal corresponding to the RRC disconnected state on the transmission resources of the overlapping portion, and does not listen for the low-power wake-up signal corresponding to the RRC connected state.

[0203] Optionally, Figure 14 The apparatus shown may further include: a second receiving module, configured to receive low-power wake-up signal transmission parameters for the first RRC state and / or the second RRC state configured by the network-side device.

[0204] The low-power wake-up signal transmission parameters include at least one of the following: The length of a transmission time unit of a low-power wake-up signal; The SCS used to generate the low-power wake-up signal; The length of the OFDM symbol used to generate the low-power wake-up signal and the value of M, where the value of M indicates the number of transmission time units of the low-power wake-up signal contained in an OFDM symbol.

[0205] Optionally, the first rule may further include: the length of the transmission time unit of the low-power wake-up signal for the first RRC state is equal to the length of the transmission time unit of the low-power wake-up signal for the second RRC state.

[0206] The transmission time unit is the smallest time unit used to send a low-power wake-up signal. The length of a transmission time unit can be one of the following: The length of an OFDM symbol; The length of a portion of an OFDM symbol; The length of an OOK symbol.

[0207] The low-power wake-up signal receiver 1400 provided in this application embodiment can achieve... Figure 10 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0208] like Figure 15 As shown in the illustration, this application also provides a communication device 1500, including a processor 1501 and a memory 1502. The memory 1502 stores a program or instructions that can run on the processor 1501. For example, when the communication device 1500 is a terminal, the program or instructions executed by the processor 1501 implement the various steps of the above-described low-power wake-up signal sending method or low-power wake-up signal receiving method embodiments, and achieve the same technical effect. When the communication device 1500 is a network-side device, the program or instructions executed by the processor 1501 implement the various steps of the above-described low-power wake-up signal sending method or low-power wake-up signal receiving method embodiments, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0209] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 10 The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 14 The low-power wake-up signal receiver shown is illustrated. Specifically, Figure 16 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0210] The terminal 1600 includes, but is not limited to, at least some of the following components: radio frequency unit 1601, network module 1602, audio output unit 1603, input unit 1604, sensor 1605, display unit 1606, user input unit 1607, interface unit 1608, memory 1609, and processor 1610.

[0211] Those skilled in the art will understand that the terminal 1600 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1610 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 16 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0212] It should be understood that, in this embodiment, the input unit 1604 may include a graphics processor 16041 and a microphone 16042. The graphics processor 16041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1606 may include a display panel 16061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1607 includes at least one of a touch panel 16071 and other input devices 16072. The touch panel 16071 is also called a touch screen. The touch panel 16071 may include a touch detection device and a touch controller. Other input devices 16072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0213] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1601 can transmit it to the processor 1610 for processing; in addition, the radio frequency unit 1601 can send uplink data to the network-side device. Typically, the radio frequency unit 1601 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0214] The memory 1609 can be used to store software programs or instructions, as well as various data. The memory 1609 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1609 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (Synchlink DRAM, SLDRAM), and direct memory bus RAM (DRRAM). The memory 1609 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0215] Processor 1610 may include one or more processing units; optionally, processor 1610 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1610.

[0216] The radio frequency unit 1601 is used to receive a low-power wake-up signal according to the inverse transformation parameters and / or the first rule corresponding to the radio resource control (RRC) state of the terminal; wherein the inverse transformation parameters include parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

[0217] This application proposes a terminal that can send a low-power wake-up signal according to the inverse transformation parameters and / or the first rule corresponding to its own RRC state. The inverse transformation parameters include parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, so that the terminal can distinguish the low-power wake-up signal under different RRC states and determine whether to perform a wake-up operation when the RRC state to which the low-power wake-up signal is applicable is consistent with its own RRC state. Therefore, the probability of false wake-up of the terminal can be reduced.

[0218] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0219] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 3 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0220] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 13 The low-power wake-up signal transmitting device shown is an example. Figure 17 As shown, the network-side device 1700 includes: an antenna 171, a radio frequency (RF) device 172, a baseband device 173, a processor 174, and a memory 175. The antenna 171 is connected to the RF device 172. In the uplink direction, the RF device 172 receives information through the antenna 171 and transmits the received information to the baseband device 173 for processing. In the downlink direction, the baseband device 173 processes the information to be transmitted and sends it to the RF device 172. The RF device 172 processes the received information and transmits it through the antenna 171.

[0221] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 173, which includes a baseband processor.

[0222] Baseband device 173 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 17 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 175 via a bus interface to call the program in the memory 175 and execute the network-side device operations shown in the above method embodiment.

[0223] The network-side device may also include a network interface 176, such as a Common Public Radio Interface (CPRI).

[0224] Specifically, the network-side device 1700 in this application embodiment further includes: instructions or programs stored in memory 175 and executable on processor 174, wherein processor 174 calls the instructions or programs in memory 175 to execute. Figure 13 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0225] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described low-power wake-up signal sending method or low-power wake-up signal receiving method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0226] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0227] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described low-power wake-up signal sending method or low-power wake-up signal receiving method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0228] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0229] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described low-power wake-up signal sending method or low-power wake-up signal receiving method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0230] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform... Figure 10 The network-side device can be used to execute the steps of the low-power wake-up signal receiving method described above. Figure 3 The steps of the low-power wake-up signal transmission method described above.

[0231] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0232] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0233] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A low-power wake-up signal transmission method, characterized in that, The method includes: The network-side device sends a low-power wake-up signal based on the positive transition parameters and / or first rule corresponding to the terminal's Radio Resource Control (RRC) state. The forward transformation parameters include the parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

2. The method according to claim 1, characterized in that, The network-side device sends a low-power wake-up signal according to the positive transition parameters and / or the first rule corresponding to the terminal's Radio Resource Control (RRC) state, including: The network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal, to obtain a low-power wake-up signal suitable for the RRC state. The network-side device sends the low-power wake-up signal.

3. The method according to claim 2, characterized in that, The forward transformation parameters include at least one of the following: The first forward transformation parameter includes the scrambling code used in the process of obtaining the low-power wake-up signal from the original low-power wake-up information through the first forward transformation. The first forward transformation includes at least encoding and scrambling. The second forward transformation parameters include a mapping sequence used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping; or, the second forward transformation parameters include a scrambling sequence used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping and sequence scrambling; or, the second forward transformation parameters include an interleaving pattern used in the process of obtaining the low-power signal from the original low-power wake-up information through the second forward transformation, wherein the second forward transformation includes at least sequence mapping and sequence interleaving.

4. The method according to claim 3, characterized in that, The network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal, to obtain a low-power wake-up signal suitable for the RRC state, including: When the low-power wake-up signal includes an on / off key control signal, the network-side device performs the first forward transformation on the original low-power wake-up information according to the first forward transformation parameter corresponding to the RRC state of the terminal to obtain a low-power wake-up information codeword suitable for the RRC state. The first forward transformation includes binary encoding and binary scrambling, and the binary scrambling code corresponding to the RRC connected state is different from the binary scrambling code corresponding to the RRC disconnected state.

5. The method according to claim 3, characterized in that, The network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal, to obtain a low-power wake-up signal suitable for the RRC state, including: When the low-power wake-up signal includes at least one OFDM signal sequence, the network-side device performs the first forward transformation on the original low-power wake-up information according to the first forward transformation parameter corresponding to the RRC state of the terminal, to obtain at least one OFDM signal sequence suitable for the RRC state. The at least one OFDM signal sequence carries the original low-power wake-up information. The first forward transformation includes binary encoding, binary scrambling, and mapping of binary codewords to the at least one OFDM signal sequence of the original low-power wake-up information. The binary scrambling code corresponding to the RRC connected state is different from the binary scrambling code corresponding to the RRC disconnected state.

6. The method according to any one of claims 3-5, characterized in that, The encoding in the first forward transform includes at least one of the following: Channel coding; Rate matching; Code point mapping; Manchester encoding.

7. The method according to claim 3, characterized in that, The network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal, to obtain a low-power wake-up signal suitable for the RRC state, including: When the low-power wake-up signal includes an on / off key control signal, the network-side device performs the second forward transformation on the original low-power wake-up information according to the second forward transformation parameters corresponding to the RRC state of the terminal, to obtain at least one binary sequence applicable to the RRC state. The at least one binary sequence carries the original low-power wake-up information, and the second forward transformation includes a mapping from the original low-power wake-up information to the binary sequence. The binary sequence corresponding to the RRC connected state is different from the binary sequence corresponding to the RRC disconnected state. Alternatively, the second forward transformation includes a mapping from the original low-power wake-up information to the binary sequence and scrambling the binary sequence. The scrambled binary sequence corresponding to the RRC connected state is different from the scrambled binary sequence corresponding to the RRC disconnected state.

8. The method according to claim 3, characterized in that, The network-side device transforms the original low-power wake-up information according to the forward transformation parameters corresponding to the RRC state of the terminal, to obtain a low-power wake-up signal suitable for the RRC state, including: When the low-power wake-up signal includes at least one OFDM signal sequence, the network-side device performs the second forward transformation on the original low-power wake-up information according to the second forward transformation parameter corresponding to the RRC state of the terminal, to obtain at least one OFDM signal sequence suitable for the RRC state; Wherein, the at least one OFDM signal sequence carries original low-power wake-up information, and the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence, wherein the OFDM sequence corresponding to the RRC connected state is different from the OFDM sequence corresponding to the RRC disconnected state; or, the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence and scrambling the at least one OFDM signal sequence, wherein the OFDM scrambling sequence corresponding to the RRC connected state is different from the OFDM scrambling sequence corresponding to the RRC disconnected state; or, the second forward transformation includes mapping the original low-power wake-up information to the at least one OFDM signal sequence and interleaving the at least one OFDM signal sequence, wherein the interleaving pattern of the OFDM signal sequence corresponding to the RRC connected state is different from the interleaving pattern of the OFDM signal sequence corresponding to the RRC disconnected state.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: The network-side device configures the terminal with inverse transformation parameters for the low-power wake-up signal in the RRC state. The inverse transformation parameters are the parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information. The inverse transformation parameters corresponding to the same RRC state are the same as the forward transformation parameters.

10. The method according to claim 9, characterized in that, The inverse transformation parameters include at least one of the following: The first inverse transformation parameter includes the descrambling code used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the first inverse transformation. The first inverse transformation includes codeword descrambling and decoding. The second inverse transformation parameters include the demapping sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence demapping; or, the second inverse transformation parameters include the descrambling sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence descrambling and sequence demapping; or, the second inverse transformation parameters include the deinterleaving pattern used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence deinterleaving and sequence demapping.

11. The method according to claim 1, characterized in that, The sending rules include: When the first transmission resource set and the second transmission resource set overlap at least partially, the transmission resources in the overlapping portion are valid for the low-power wake-up signal corresponding to the first RRC state but invalid for the low-power wake-up signal corresponding to the second RRC state. Wherein, the first transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the first RRC state, the second transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the second RRC state, the first RRC state is one of RRC connected state and RRC disconnected state, and the second RRC state is the other of RRC connected state and RRC disconnected state.

12. The method according to claim 11, characterized in that, The network-side device sends a low-power wake-up signal according to the positive transition parameters and / or the first rule corresponding to the terminal's Radio Resource Control (RRC) state, including: The network-side device sends only a low-power wake-up signal suitable for the first RRC state on the transmission resources of the overlapping portion.

13. The method according to claim 11 or 12, characterized in that, The first RRC state is an RRC disconnected state, and the second RRC state is an RRC connected state.

14. The method according to any one of claims 11-13, characterized in that, The low-power wake-up signal transmission resource set includes multiple candidate transmission resources that repeat periodically, with at least one candidate transmission resource included in each period.

15. The method according to any one of claims 1-14, characterized in that, The method further includes: The network-side device configures low-power wake-up signal transmission parameters for the first RRC state and / or the second RRC state to the terminal. The low-power wake-up signal transmission parameters include at least one of the following: The length of a transmission time unit of a low-power wake-up signal; The subcarrier spacing (SCS) used to generate the low-power wake-up signal; The length of the OFDM symbol used to generate the low-power wake-up signal and the value of M, where the value of M indicates the number of transmission time units of the low-power wake-up signal contained in an OFDM symbol.

16. The method according to any one of claims 11-15, characterized in that, The first rule also includes: The length of the transmission time unit for the low-power wake-up signal in the first RRC state is equal to the length of the transmission time unit for the low-power wake-up signal in the second RRC state.

17. The method according to any one of claims 1-16, characterized in that, The length of a transmission time unit is one of the following: The length of an OFDM symbol; The length of a portion of an OFDM symbol; The length of an OOK symbol.

18. A low-power wake-up signal receiving method, characterized in that, The method includes: The terminal receives a low-power wake-up signal based on the reverse transformation parameters and / or the first rule corresponding to the RRC state controlled by its own radio resources. The reverse transformation parameters include the parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

19. The method according to claim 18, characterized in that, The terminal receives a low-power wake-up signal based on the inverse transformation parameters corresponding to its own RRC state and / or the first rule, including: The terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state. If the transformation is successful and the original low-power wake-up information is obtained, it is determined that the RRC state applicable to the low-power wake-up signal is consistent with its own RRC state. If the RRC state applicable to the low-power wake-up signal is consistent with its own RRC state, the terminal determines whether to perform a wake-up operation based on the original low-power wake-up information.

20. The method according to claim 19, characterized in that, The inverse transformation parameters include at least one of the following: The first inverse transformation parameter includes the descrambling code used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the first inverse transformation. The first inverse transformation includes codeword descrambling and decoding. The second inverse transformation parameters include the demapping sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence demapping; or, the second inverse transformation parameters include the descrambling sequence used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence descrambling and sequence demapping; or, the second inverse transformation parameters include the deinterleaving pattern used in the process of obtaining the original low-power wake-up information from the low-power wake-up signal through the second inverse transformation, wherein the second inverse transformation includes sequence deinterleaving and sequence demapping.

21. The method according to claim 20, characterized in that, The terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, including: When the low-power wake-up signal includes an on / off key control signal, the terminal performs the first inverse transformation on the received low-power wake-up signal according to the first inverse transformation parameters corresponding to its own RRC state. The first inverse transformation includes binary codeword descrambling and binary codeword decoding. The binary descrambling code corresponding to the RRC connected state is different from the binary descrambling code corresponding to the RRC disconnected state.

22. The method according to claim 20, characterized in that, The terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, including: When the low-power wake-up signal includes at least one OFDM signal sequence, the terminal performs the first inverse transformation on the received low-power wake-up signal according to the first inverse transformation parameters corresponding to its own RRC state. The first inverse transformation includes demapping the at least one OFDM signal to a binary codeword, descrambling the binary codeword, and decoding the binary codeword. The binary descrambling code corresponding to the RRC connected state is different from the binary descrambling code corresponding to the RRC disconnected state.

23. The method according to any one of claims 20-22, characterized in that, The decoding in the first inverse transformation includes at least one of the following: Channel decoding; De-rate matching; Codeword demapping; Manchester Decoded.

24. The method according to claim 20, characterized in that, The terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, including: When the low-power wake-up signal includes an on / off key control signal, the terminal performs the second inverse transformation on the received low-power wake-up signal according to the second inverse transformation parameters corresponding to its own RRC state. The second inverse transformation includes demapping the binary sequence to the original low-power wake-up information, and the binary sequence corresponding to the RRC connected state is different from the binary sequence corresponding to the RRC disconnected state. Alternatively, the second inverse transformation includes descrambling the binary sequence and demapping the binary sequence to the original low-power wake-up information, and the binary descrambling sequence corresponding to the RRC connected state is different from the binary descrambling sequence corresponding to the RRC disconnected state.

25. The method according to claim 20, characterized in that, The terminal transforms the received low-power wake-up signal according to the inverse transformation parameters corresponding to its own RRC state, including: When the low-power wake-up signal includes at least one OFDM signal sequence, the terminal performs the second inverse transformation on the received low-power wake-up signal according to the second inverse transformation parameters corresponding to its own RRC state; Wherein, the second inverse transformation includes demapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the OFDM sequence corresponding to the RRC connected state is different from the OFDM signal sequence corresponding to the RRC disconnected state; or, the second inverse transformation includes descrambling the at least one OFDM signal sequence and mapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the descrambling sequence of the OFDM signal sequence corresponding to the RRC connected state is different from the descrambling sequence of the OFDM signal sequence corresponding to the RRC disconnected state; or, the second inverse transformation includes deinterleaving the at least one OFDM signal sequence and mapping the at least one OFDM signal sequence to the original low-power wake-up information, wherein the deinterleaving pattern of the OFDM signal sequence corresponding to the RRC connected state is different from the deinterleaving pattern of the OFDM signal sequence corresponding to the RRC disconnected state.

26. The method according to any one of claims 18-25, characterized in that, The method further includes: The terminal receives the reverse transformation parameters configured by the network-side device for the RRC state.

27. The method according to claim 18, characterized in that, The sending rules include: When the first transmission resource set and the second transmission resource set overlap at least partially, the transmission resources in the overlapping portion are valid for the low-power wake-up signal corresponding to the first RRC state but invalid for the low-power wake-up signal corresponding to the second RRC state. Wherein, the first transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the first RRC state, the second transmission resource set is a low-power wake-up signal transmission resource set configured for the terminal in the second RRC state, the first RRC state is one of RRC connected state and RRC disconnected state, and the second RRC state is the other of RRC connected state and RRC disconnected state.

28. The method according to claim 27, characterized in that, The terminal receives a low-power wake-up signal based on the inverse transformation parameters corresponding to its own RRC state and / or the first rule, including: The terminal only listens for the low-power wake-up signal corresponding to the first RRC state on the transmission resources of the overlapping part.

29. The method according to claim 27 or 28, characterized in that, The first RRC state is an RRC disconnected state, and the second RRC state is an RRC connected state.

30. The method according to any one of claims 27-29, characterized in that, The low-power wake-up signal transmission resource set includes multiple candidate transmission resources that repeat periodically, with at least one candidate transmission resource included in each period.

31. The method according to any one of claims 27-30, characterized in that, The method further includes: The terminal receives low-power wake-up signal transmission parameters configured by the network-side device for the first RRC state and / or the second RRC state; The low-power wake-up signal transmission parameters include at least one of the following: The length of a transmission time unit of a low-power wake-up signal; The subcarrier spacing (SCS) used to generate the low-power wake-up signal; The length of the OFDM symbol used to generate the low-power wake-up signal and the value of M, where the value of M indicates the number of transmission time units of the low-power wake-up signal contained in an OFDM symbol.

32. The method according to any one of claims 27-31, characterized in that, The first rule also includes: The length of the transmission time unit for the low-power wake-up signal in the first RRC state is equal to the length of the transmission time unit for the low-power wake-up signal in the second RRC state.

33. The method according to claim 31 or 32, characterized in that, The length of a transmission time unit is one of the following: The length of an OFDM symbol; The length of a portion of an OFDM symbol; The length of an OOK symbol.

34. A low-power wake-up signal transmitting device, characterized in that, include: The first transmitting module is used to transmit a low-power wake-up signal according to the positive transformation parameters and / or the first rule corresponding to the radio resource control (RRC) state of the terminal. The forward transformation parameters include the parameters used in the process of transforming the original low-power wake-up information into the low-power wake-up signal, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

35. A low-power wake-up signal receiving device, characterized in that, include: The first receiving module is used to receive a low-power wake-up signal according to the inverse transformation parameters corresponding to the radio resource control RRC state of the terminal and / or the first rule. The reverse transformation parameters include the parameters used in the process of transforming the low-power wake-up signal into the original low-power wake-up information, and the first rule includes the transmission rule of the low-power wake-up signal corresponding to the low-power wake-up signal transmission resource.

36. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the low-power wake-up signal transmission method as described in any one of claims 1 to 17.

37. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the low-power wake-up signal receiving method as described in any one of claims 18 to 33.

38. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the low-power wake-up signal transmission method as described in any one of claims 1 to 17, or implement the steps of the low-power wake-up signal reception method as described in any one of claims 18 to 33.

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