System and method for energy conservation

Abstract

The invention discloses a system and a method for energy conservation. A wireless communication device may receive a signal from a wireless communication node. The wireless communication device may determine a behavior based on the signal.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communications, including but not limited to systems and methods for energy conservation in communication systems. Background Art

[0002] The Third Generation Partnership Project (3GPP), a standards organization, is currently developing a new radio interface known as 5G New Radio (5G NR) and the Next Generation Packet Core (NG-CN or NGC). 5G NR will consist of three main components: the 5G Access Network (5G-AN), the 5G Core (5GC), and user equipment (UE). To meet diverse data services and requirements, the network elements (also known as network functions) of the 5GC have been simplified, partly through software simplification and partly through hardware simplification, enabling flexible adaptation to meet demand. Summary of the Invention

[0003] The example embodiments disclosed herein are intended to address issues related to one or more problems raised in the prior art, and will provide additional obvious features by reference to the accompanying drawings and in combination with the detailed description below. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented only as examples and not as limiting descriptions, and it will be clear to those of ordinary skill in the art after reading this disclosure that various modifications can be made to the embodiments (for example, including combining features from different disclosed examples, embodiments, and / or implementations) without departing from the scope of this disclosure.

[0004] At least one aspect relates to the following system, method, apparatus, or computer-readable medium. A wireless communication device (e.g., a UE) may receive a signal (e.g., a low-power signal, a wake-up signal WUS, or a low-power wake-up signal) from a wireless communication node (e.g., a base station). The wireless communication device may determine an action based on the signal. The signal may include first information. The first information may include at least one of the following: wake-up information; user equipment (UE) or wireless communication device identifier (ID) information; defined ID information; UE or wireless communication device group information; defined group ID information; cyclic redundancy check (CRC) information; radio network temporary identifier (RNTI) information; duration or offset information; scrambling information; physical downlink control channel (PDCCH) related information; repetition information; frequency hopping information; discontinuous reception (DRX) related information; channel state information reference signal (CSI-RS) related information; tracking reference signal (TRS) availability information; search space (SS) group switching information; PDCCH skipping information; transmit power control (TPC) command information; sounding reference signal (SRS) request information; preemption indication information; channel occupancy time (COT) period indicator information; available resource block (RB) set indicator information; secondary cell (SCell) sleep indication information; or information based on any of the foregoing information.

[0005] In some embodiments, a low power wake-up signal (LP-WUS) may trigger energy-saving behavior of the UE. The wake-up information may be information about the wake-up timing (e.g., the duration / offset / duration before the wake-up occurs). Physical downlink control channel (PDCCH) related information may include a defined, signaled, or indicated PDCCH timing. Information based on any of the foregoing information includes at least one of the following: an information combination of the first information, information based on the UEID, or a portion of the UEId information. The duration / offset information may include at least one of the following: the duration / offset between the signal and the PDCCH timing; the duration / offset between the signal and the PRACH timing; or the duration / offset between the signal and the paging timing.

[0006] In some embodiments, the signal may include at least one of the following: a preamble portion; or a payload portion. The preamble portion may include at least one preamble. The payload portion may include at least one bit. The preamble portion and the payload portion may include: the preamble portion, followed by an offset, and then the payload portion. The offset may be a duration / interval based on a subcarrier, symbol, time slot, microsecond, millisecond, or any other time unit (e.g., 0, 10, or 20). The offset may include: a frequency offset between the preamble portion and the payload portion; or a time offset between the preamble portion and the payload portion. The payload may or may not include a cyclic redundancy check (CRC). The payload portion and the data portion may be similar. The preamble portion and the payload portion may include: a first preamble portion, followed by the payload portion, and then a second preamble portion.

[0007] In some embodiments, the first preamble portion, the payload portion, and the second preamble portion may be continuous in the time domain. A first time offset (e.g., a gap, duration, cycle, or gap) between the first preamble portion and the payload portion may be the same as a second time offset between the second preamble portion and the payload portion. The first time offset and the second time offset may be predefined, or notified to the wireless communication device via signaling, or indicated to the wireless communication device via downlink control information (DCI) signaling. The preamble portion may include or indicate at least one of the following: the first information or information based on the first information; the size of the payload portion; the format of the payload portion or the format of the signal; the position of the payload portion (for example, the starting position or the ending position); the time or frequency offset between the preamble portion and the payload portion; the presence of specific information in the payload portion; the presence of specific indicators, bits or fields in the payload portion; frequency hopping of the payload portion; repetition of the payload portion; information based on a cell identifier (ID) (for example, a partial cell ID, a full cell ID, a tracking area or a RAN area); or information related to the UE.

[0008] In some embodiments, the preamble portion and the payload portion may be continuous in the time domain or frequency domain. The frequency offset or the time offset may be predefined, or notified to the wireless communication device via signaling, or indicated to the wireless communication device via downlink control information (DCI) signaling. The signaling may include radio resource control (RRC) signaling, media access control element (MAC CE) signaling, or system information block (SIB) signaling. In some embodiments, the UE may check / detect the preamble portion by blind detection of candidate signals.

[0009] In some embodiments, the signal may include one of a plurality of formats. The plurality of formats may include at least one of the following: a format based on a plurality of preambles; a format based on the preamble portion; a format based on the preamble portion and the payload portion; a format based on the preamble portion and the payload portion of a fixed size; a format based on the preamble portion and the payload portion of a configurable or variable size; a format based on the first preamble portion, the payload portion, and the second preamble portion; a format based on the payload portion; a format based on the payload portion and cyclic redundancy check (CRC) bits; a format based on the CRC bits and the payload portion of a fixed size. The format of the payload portion may include: a format defined based on the CRC bits and a configurable or variable size of the payload portion; a format based on a waveform; a format based on a modulation scheme; a format based on the presence of specific information; a format based on a subcarrier spacing (SCS); a format based on the number of repetitions of the signal, the preamble portion, or the payload portion; a format based on the size (or length) of the payload portion or the signal; a format based on the number of user equipment (UE) or wireless communication devices (e.g., providing term coverage for UEs); a format based on UE-related information; or a format based on the RRC state. If a UE ID is included / present, a related format may be defined. If a UE ID and a cell ID are defined, a related format may be defined.

[0010] In some embodiments, the signal may include one of multiple formats. The wireless communication device may determine the one of multiple formats used when receiving the signal based on at least one of the following: a radio resource control (RRC) state; received signaling; or one or more resources used to transmit the signal. The RRC state may include an RRC_CONNECTED state, an RRC_INACTIVE state, or an RRC_IDLE state.

[0011] In some embodiments, the wireless communication device may determine one of the multiple formats based on the RRC_CONNECTED state. The one of the multiple formats may include at least one of the following: multiple preambles, a fixed data size, a configurable data size, cyclic redundancy check (CRC) bits, UE identifier (ID) related information, UE group ID related information, or physical downlink control channel (PDCCH) related information. For example, in the idle state, the information may include a cell ID, a cell-specific wake-up, or a UE group ID.

[0012] In some embodiments, the wireless communication device may receive the signal when the wireless communication device is in an RRC_CONNECTED state. The wireless communication device may determine the behavior when the wireless communication device is in the RRC_CONNECTED state. The wireless communication device may receive the signal in at least one of the following situations in the RRC_CONNECTED state: when parameters are configured through radio resource control (RRC), media access control control element (MAC CE), or system information block (SIB) signaling; when one or more bits or fields are present or indicated in downlink control information (DCI) signaling; before or at the expiration of a specific timer; after a specific duration; after a specific physical downlink control channel (PDCCH) opportunity or after several PDCCH opportunities (such as predefined, signaled, or DCI indicated); within a duration before a DRX on start point; within a duration before a PDCCH opportunity; during discontinuous reception off (DRX-off); during wake-up radio on (WUR-on); during DRX on; or according to a predefined condition. In some embodiments, in addition to PDCCH opportunities, the wireless communication device may continue to monitor after triggering DRX on or DRX off. The predefined condition may include that once LP-WUS is configured, the wireless communication device may keep monitoring.

[0013] In some embodiments, when the wireless communication device is in the RRC_CONNECTED state, the signal may not be received in at least one of the following situations: when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is sent; when parameters are configured through RRC, MAC CE or SIB signaling; when one or more bits or fields are present or indicated in the DCI signaling; when DCI is received; when a physical downlink shared channel (PDSCH) is received; after a physical uplink control channel (PUCCH) is sent; based on the configuration of the wireless communication device; before or after a specific duration; before or after expiration of a specific timer; or before or after a specific PDCCH opportunity.

[0014] In some embodiments, when the wireless communication device is in the RRC_CONNECTED state, the signal may not be received in at least one of the following situations: when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is sent; when parameters are configured through RRC, MAC CE or SIB signaling; when one or more bits or fields are present or indicated in the DCI signaling; when DCI signaling is received; when PDSCH is received; after sending PUCCH; based on the configuration of the wireless communication device; before or after a specific duration; before or after expiration of a specific timer; or before or after a specific PDCCH opportunity.

[0015] In some embodiments, when the wireless communication device is in the RRC_CONNECTED state, the UE may stop receiving the signal in at least one of the following situations: when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is sent; when parameters are configured through radio resource control (RRC), media access control control element (MACCE) or system information block (SIB) signaling; when one or more bits or fields are present or indicated in downlink control information (DCI) signaling; when DCI signaling is received; when a physical downlink shared channel (PDSCH) is received; after sending a physical uplink control channel (PUCCH); based on the configuration of the wireless communication device; before or after a specific duration; before or after expiration of a specific timer; or before or after a specific physical downlink control channel (PDCCH) timing.

[0016] In some embodiments, the signal may be configured with at least one of the following: number of repetitions; period; duration; no more than one time slot and / or resources within a range of 5 MHz, 20 MHz, or 50 MHz; or frequency hopping. The signal may include / may be at least one of the following: radio resource control (RRC) signaling, system information block (SIB) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling.

[0017] In some embodiments, the wireless communication device may determine the behavior based on the signal, and the behavior includes at least one of the following: sending a physical random access channel (PRACH) or msgA by the wireless communication device; sending a physical uplink control channel (PUCCH) by the wireless communication device; sending a physical uplink control channel (PUCCH) with HARQ-ACK by the wireless communication device; receiving PDCCH by the wireless communication device; monitoring PDCCH timing by the wireless communication device; receiving a paging channel or transmission by the wireless communication device; monitoring paging timing by the wireless communication device; activating a DRX on period (such as the next DRX on period); starting a timer; or activating measurement, detection, reception or transmission of a reference signal (RS).

[0018] In some embodiments, the wireless communication device may determine the action from the signal after or based on at least one of: a time period or period; a number of PDCCH opportunities; a specific PDCCH opportunity; or expiration of a timer.

[0019] In some embodiments, the wireless communication node (eg, a BS) may send a signal (eg, a low power consumption signal (WUS)) to a wireless communication device (eg, a UE). The wireless communication device may determine an action based on the signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To facilitate the reader's understanding of this solution, various exemplary embodiments of this solution are described in detail below with reference to the accompanying drawings. The accompanying drawings are provided for illustrative purposes only and depict only exemplary embodiments of this solution to facilitate the reader's understanding of this solution. Therefore, these drawings should not be construed as limiting the breadth, scope, or applicability of this solution. Please note that for clarity and ease of illustration, these drawings are not necessarily drawn to scale.

[0021] Figure 1 An example cellular communication network in which the techniques disclosed herein may be implemented according to an embodiment of the present disclosure is shown;

[0022] Figure 2 shows a block diagram of an example base station and user equipment apparatus according to some embodiments of the present disclosure;

[0023] Figure 3 An example energy saving method according to some embodiments of the present disclosure is shown;

[0024] Figure 4 shows an example format of a low power wake-up signal (LP-WUS) according to some embodiments of the present disclosure; and

[0025] Figure 5 A flowchart of energy saving in a communication system according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0026] 1. Mobile communication technology and environment

[0027] Figure 1 An example wireless communication network and / or system 100 is shown in which the techniques disclosed herein may be implemented according to an embodiment of the present disclosure. In the following discussion, the wireless communication network 100 may be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and is referred to herein as "network 100." The example network 100 includes a base station 102 (hereinafter referred to as "BS 102"; also known as a wireless communication node) and a user equipment 104 (hereinafter referred to as "UE 104"; also known as a wireless communication device), which may communicate via a communication link 110 (e.g., a wireless communication channel), and cell clusters 126, 130, 132, 134, 136, 138, and 140 covering a geographic area 101. Figure 1 1 , BS 102 and UE 104 are both located within the respective geographic boundaries of cell 126. Other cells 130, 132, 134, 136, 138, and 140 may each contain at least one base station operating within their allocated bandwidth to provide adequate wireless coverage for intended users.

[0028] For example, base station 102 can operate within an allocated channel transmission bandwidth to provide sufficient coverage for user equipment 104. Base station 102 and user equipment 104 can communicate via downlink radio frames 118 and uplink radio frames 124, respectively. Each radio frame 118 / 124 can also be divided into subframes 120 / 127 containing data symbols 122 / 128. This disclosure describes base station 102 and user equipment 104 as non-limiting examples of "communication nodes," which can generally implement the methods disclosed herein. According to various embodiments of the present solution, such communication nodes can be capable of wireless and / or wired communication.

[0029] Figure 2 A block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of the present solution is shown. The system 200 may include components and elements configured to support known or conventional operating features, which need not be described in detail herein. In an exemplary embodiment, the system 200 may be used in Figure 1 Data symbols are transmitted (eg, sent and received) in a wireless communication environment such as the illustrated wireless communication environment 100 .

[0030] System 200 generally includes a base station 202 (hereinafter referred to as "BS 202") and a user equipment 204 (hereinafter referred to as "UE 204"). Base station 202 includes a BS (base station) transceiver module 210, a BS (base station) antenna 212, a BS (base station) processor module 214, a BS (base station) memory module 216, and a network communication module 218, each of which is coupled to and interconnected with each other as needed via a data communication bus 220. User equipment 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each of which is coupled to and interconnected with each other as needed via a data communication bus 240. Base station 202 communicates with user equipment 204 via a communication channel 250, which can be any wireless channel or other medium suitable for data transmission as described herein.

[0031] As will be understood by those skilled in the art, the system 200 includes Figure 2 In addition to the modules shown, any number of other modules may be included. Those skilled in the art will appreciate that the various exemplary block diagrams, modules, circuits, and processing logic described in the embodiments disclosed herein may be implemented by hardware, computer-readable software, firmware, or any actual combination thereof. To clearly illustrate the interchangeability and compatibility of hardware, firmware, and software, various exemplary components, block diagrams, modules, circuits, and steps are generally described according to their functions. Whether such functions are implemented as hardware, firmware, or software depends on the specific application and design constraints imposed on the entire system. Those skilled in the art who are familiar with the concepts described herein may implement these functions in an appropriate manner according to the specific application, but such implementation decisions should not be interpreted as limiting the scope of this disclosure.

[0032] According to some embodiments, the user equipment transceiver 230, which may be referred to herein as an "uplink" transceiver 230, includes a radio frequency (RF) transmitter and an RF receiver, both of which include circuitry connected to an antenna 232. A duplex switch (not shown) can alternately connect the uplink transmitter or receiver to the uplink antenna in a time-division duplexing manner. Similarly, according to some embodiments, the base station transceiver 210, which may be referred to herein as a "downlink" transceiver 210, includes an RF transmitter and an RF receiver, both of which include circuitry connected to an antenna 212. The downlink duplex switch can alternately couple the downlink transmitter or receiver to the downlink antenna 212 in a time-division duplexing manner. The operations of the two transceiver modules 210 and 230 can be coordinated in time such that while the uplink receive circuitry is coupled to the uplink antenna 232 to receive signals via the wireless transmission link 250, the downlink transmitter is simultaneously connected to the downlink antenna 212. Conversely, the operations of the two transceivers 210 and 230 can be coordinated in time such that when the uplink transmitter is coupled to the uplink antenna 232, the downlink receiver is simultaneously coupled to the downlink antenna 212 to receive transmissions over the wireless transmission link 250. In some embodiments, a high degree of time synchronization is achieved with very short guard times between duplex direction switches.

[0033] The UE transceiver 230 and the base station transceiver 210 are configured to communicate via a wireless data communication link 250 and work in conjunction with an appropriately configured RF antenna array 212 / 232 that can support a specific wireless communication protocol and modulation scheme. In some exemplary embodiments, the UE transceiver 210 and the base station transceiver 210 are configured to support industry specifications such as Long Term Evolution (LTE) and emerging 5G standards. However, it should be understood that the scope of application of the present disclosure is not necessarily limited to specific standards and related protocols. However, the UE transceiver 230 and the base station transceiver 210 can be configured to support alternative or additional wireless data communication protocols, including future standards or their variants.

[0034] According to various embodiments, BS 202 may be an evolved Node B (eNB), a serving eNB, a target eNB, a femtocell base station, or a picocell base station. In some embodiments, UE 204 may be embodied as a variety of user devices, such as a mobile phone, a smartphone, a personal digital assistant (PDA), a tablet computer, a laptop computer, a wearable computing device, etc. Processor modules 214 and 236 may be implemented using a general-purpose processor, a content-addressable memory, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, any applicable programmable logic device, discrete gate circuits or transistor logic, discrete hardware components, or any combination thereof, which are specifically designed to perform the functions described herein. In this way, the processor may be implemented in the form of a microprocessor, a controller, a microcontroller, a state machine, etc. The processor may also be implemented as a combination of computing devices, such as a combination of a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or other similar configurations.

[0035] Furthermore, the method or algorithm steps described in conjunction with the embodiments disclosed herein may be embodied directly in hardware, firmware, or software modules executed by processor modules 214 and 236, respectively, or any combination thereof. Memory modules 216 and 234 may be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this configuration, memory modules 216 and 234 may be coupled to processor modules 210 and 230, respectively, such that processor modules 210 and 230 can read information from and write information to memory modules 216 and 234, respectively. Memory modules 216 and 234 may also be integrated into their respective processor modules 210 and 230. In some embodiments, memory modules 216 and 234 may each include cache memory for storing temporary variables or other intermediate information during execution of instructions by processor modules 210 and 230, respectively. Memory modules 216 and 234 may also each include non-volatile memory for storing instructions to be executed by processor modules 210 and 230, respectively.

[0036] The network communication module 218 generally represents the hardware, software, firmware, processing logic, and / or other components of the base station 202 that enable bidirectional communication between the base station transceiver 210 and other network components and communication nodes configured to communicate with the base station 202. For example, the network communication module 218 can be configured to support Internet or WiMAX traffic. In a typical deployment (not limiting), the network communication module 218 is provided with an 802.3 Ethernet interface, enabling the base station transceiver 210 to communicate with a traditional Ethernet-based computer network. In this manner, the network communication module 218 can include a physical interface for connecting to a computer network (e.g., a mobile switching center MSC). As used herein, the term "configured to" and variations thereof with respect to a particular operation or function refer to a device, component, circuit, structure, machine, signal, etc. that is physically constructed, programmed, formatted, and / or arranged to perform that operation or function.

[0037] The Open Systems Interconnection (OSI) model (herein referred to as the "OSI model") is a conceptual and logical framework for defining inter-system network communications. It is applicable to systems that can interconnect and communicate with other systems (e.g., wireless communication devices and wireless communication nodes). The model is divided into seven subcomponents (or layers), each representing a conceptual set of services provided to upper and lower layers. The OSI model also defines logical networks through protocols at different layers, effectively describing the transmission process of computer data packets. The OSI model is also referred to as the seven-layer OSI model or seven-layer model. In some embodiments, layer 1 may be the physical layer. In some embodiments, layer 2 may be the media access control (MAC) layer. In some embodiments, layer 3 may be the radio link control (RLC) layer. In some embodiments, layer 4 may be the packet data convergence protocol (PDCP) layer. In some embodiments, layer 5 may be the radio resource control (RRC) layer. In some embodiments, layer 6 may be the non-access stratum (NAS) or Internet Protocol (IP) layer, while layer 7 may be other layers.

[0038] To enable those skilled in the art to implement and use the present solution, various exemplary embodiments of the present solution are described below in conjunction with the accompanying drawings. After reading this disclosure, those skilled in the art should understand that various changes or modifications may be made to the examples described herein without departing from the scope of the present solution. Therefore, the present solution is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, the specific order or hierarchy of steps in the methods disclosed herein are merely exemplary schemes. Based on design preferences, the specific order or hierarchy of steps in the disclosed methods or processes may be rearranged without departing from the scope of the present solution. Therefore, those skilled in the art should understand that the methods and techniques disclosed herein present the steps or operations in an example order, and unless expressly stated otherwise, the present solution is not limited to the specific order or hierarchy presented.

[0039] 2. Systems and methods for energy saving

[0040] Low-power wake-up signaling (LP-WUS) can be used to save power in UEs. However, the design and use of LP-WUS in connected mode or idle / inactive mode is unclear. This disclosure discusses how to enable / disable LP-WUS detection, how to design LP-WUS signals, and LP-WUS-related behaviors. Therefore, low-power wake-up signaling (LP-WUS) transmission can be performed in wireless communication systems.

[0041] A wireless communication device (e.g., a user equipment terminal) may receive a signal (e.g., an LP-WUS) from a wireless communication node (e.g., a base station). The wireless communication device may determine its behavior based on the signal. The signal may be modulated using on-off keying (OOK), frequency shift keying (FSK), amplitude shift keying (ASK), or orthogonal frequency division multiplexing (OFDM).

[0042] Implementation Example 1: Information carried by LP-WUS

[0043] A signal (such as LP-WUS) may carry at least one of the following information: wake-up information; user equipment (UE) or wireless communication device identifier (ID) information; defined ID information; UE or wireless communication device group information; defined group ID information; cyclic redundancy check (CRC) information; radio network temporary identifier (RNTI) information; duration or offset information; scrambling information; physical downlink control channel (PDCCH) related information; repetition information; frequency hopping information; discontinuous reception (DRX) related information; channel state information reference signal (CSI-RS) related information; tracking reference signal (TRS) availability information; search space (SS) group switching information; PDCCH skipping information; transmit power control (TPC) command information; sounding reference signal (SRS) request information; preemption indication information; channel occupancy time (COT) period indicator information; available resource block (RB) set indicator information; secondary cell (SCell) sleep indication information; or information based on any of the foregoing information.

[0044] The wake-up information can be used to wake up the main radio frequency or UE through the WUR. The wake-up information can be used to determine UE behavior. The wake-up information can be used to maintain the UE's monitoring of channels, signals or timings (such as PDCCH timings). The wake-up information can be used to start / stop a timer. The wake-up information may include wake-up timing information (such as the duration / offset / duration before the wake-up occurs). For example, the duration may indicate the duration / offset / duration required for the main radio frequency module (MR) or UE to wake up and start detecting the physical downlink control channel (PDCCH). The wake-up information may indicate the PDCCH timing to be detected. In some embodiments, the wireless communication device may be awakened after receiving the LP-WUS.

[0045] The user equipment (UE) or wireless communication device identifier (ID) information can be used to identify a specific UE / WUR to ensure that the signal is for a specific UE. The user equipment (UE) or wireless communication device identifier (ID) information can be a complete ID of more than 20 bits (e.g., 48 bits), or it can be a part of the UE ID information, or information based on the UE ID (e.g., based on a modulo operation of the UEID). For example, there may be a UE ID with a length of N bits. For example, x bits can represent a number. The number can be obtained through the UEID (e.g., based on the modulo operation of m on the UE ID, the number range can be 0 to m-1). For example, the number can be part of the UE ID, an odd-digit UE ID, or an even-digit UE ID.

[0046] Defined ID information (e.g., a WUR ID) can be configured by the gNB for a UE / WUR. Compared to a full UE ID, defined ID information can have less overhead (e.g., less than 20 bits or 10 bits). In some embodiments, the ID information for a specific UE or WUR can be defined / configured by the gNB. For example, M-bit ID information can be configured by the gNB, where M can be 8 bits, 10 bits, 4 bits, 2 bits, or 1 bit. In some embodiments, each UE configured with parameters can be configured with this ID information.

[0047] The UE or wireless communication device group information may be obtained based on the identifier (ID) information of the UE or wireless communication device or the defined ID information. The group information may include a group index. For example, X mod m = 0 to m-1. Each value of {X mod m} may correspond to a group consisting of UEs. The LP-WUS resources of groups consisting of different UEs may not overlap. The UE group index may be used for a group consisting of UEs. In some embodiments, there may be at least one index. In some embodiments, the UE group index (e.g., UE ID mod B) may be obtained by a modulo operation. B may be the number of groups.

[0048] The defined group ID information may include the ID of a group of UEs configured by the gNB. The group ID may include an RNTI value. For example, X mod m = 0 to m-1. Each value of {X mod m} may correspond to a defined UE group. LP-WUS resources for different UE groups may not overlap. In some embodiments, the ID information of the group of UEs may be defined / configured by the gNB. In some embodiments, there may be at least one ID group index. In some embodiments, the defined ID group index may be obtained using a modulo operation and / or defined ID information (e.g., defined ID mod B). B may be the number of groups.

[0049] Cyclic redundancy check (CRC) information may be appended to the payload portion. Cyclic redundancy check (CRC) information may be generated based on user equipment identifier (ID) related information and / or UE group ID related information. User equipment ID related information may include complete user equipment ID information, partial user equipment ID information, or information derived from the user equipment ID. UE group ID related information may include complete user equipment group ID information or information derived from the user equipment group ID. In some embodiments, an N-bit CRC may be carried / attached. N may be 16, 24, configured, or predefined. In some embodiments, the CRC bits may be determined based on ID information (e.g., UE ID, defined ID, ID group, or defined ID group). In some embodiments, the CRC bits may be determined based on a C-RNTI or a defined RNTI having N bits.

[0050] Radio Network Temporary Identifier (RNTI) information can be configured by the gNB (e.g., RRC). In some embodiments, the signal can be scrambled using an N-bit RNTI. In some embodiments, the RNTI can be specific to a single UE (e.g., a C-RNTI, which is an RNTI defined for a single UE). In some embodiments, the RNTI can be specific to multiple UEs or a group of UEs.

[0051] In some embodiments, the duration or offset information may be used to indicate the duration or time offset between the signal and the UE behavior. Upon receiving the signal, the UE may determine to perform an action after a duration or time offset. In some embodiments, the duration / offset (us, us, time slot, symbol, or based on time units) may be indicated by the signal. In some embodiments, a list of duration / offset values ​​may be configured via RRC parameters. In some embodiments, the duration / offset may be based on a PDCCH opportunity (e.g., the first / second or other PDCCH opportunity after receiving an LP-WUS, e.g., skipping several PDCCH opportunities).

[0052] In some embodiments, the duration, offset, or period information may be used to indicate the duration, offset, or period of the UE's behavior. For example, the UE may need to remain awake during the duration. For example, the UE may monitor PDCCH timing during the duration. For example, the UE's DRX on duration is within the duration. For example, a timer of the UE (such as a DRX on timer) may expire during the duration.

[0053] The scrambling information can be used to scramble the signal of a single UE, multiple UEs, or a group of UEs. The scrambling sequence can be generated based on the UE ID or the UE group ID.

[0054] In some embodiments, the user equipment group may be a plurality of UEs, or all UEs in a cell.

[0055] In some embodiments, the PDCCH-related information may include a predefined, signaled, or indicated PDCCH opportunity. For example, the UE behavior may require monitoring at a specific PDCCH opportunity. For example, the PDCCH-related information may indicate the next PDCCH opportunity after the LP-WUS. For example, the PDCCH-related information may indicate that the UE may monitor a specific PDCCH opportunity.

[0056] In some embodiments, the repetition information may indicate the repetition of a portion of the payload or a portion of the payload. The repetition information may be interpreted differently depending on different conditions. The number of repetitions may include at least one value from {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024}.

[0057] In some embodiments, the frequency hopping information may include a frequency hopping flag. The frequency hopping information may indicate whether the frequency hopping function is enabled. Frequency hopping information is enabled only when repetition is supported / enabled / configured. The frequency hopping rule may be based on repetition, time slot, symbol, or sequence.

[0058] In some embodiments, discontinuous reception (DRX)-related information may include DRX on information and / or DRX off information. The DRX-related information may indicate whether the UE is operating in a DRX on period or a DRX off period. The DRX-related information may indicate whether the UE initiates or terminates a DRX on period / DRX off period. The DRX-related information may include any information based on DRX.

[0059] In some embodiments, information related to a channel state information reference signal (CSI-RS) may include indication information related to the CSI-RS. For example, the information may indicate whether / how the UE receives the CSI-RS, or whether / how to report based on the CSI-RS.

[0060] In some embodiments, the tracking reference signal (TRS) availability information may include an indication related to the TRS. For example, the information may indicate whether / how the UE receives / monitors the TRS (timing).

[0061] In some embodiments, the search space (SS) group switching information may include instructions related to the SS group (set). For example, the information may indicate whether / how the UE switches the SS group (set) for monitoring.

[0062] In some embodiments, the physical downlink control channel (PDCCH) skipping information may include instructions related to PDCCH skipping. For example, the information may indicate whether / how the UE skips PDCCH monitoring.

[0063] In some embodiments, the transmit power control (TPC) command information may include power-related indications. For example, the information may indicate the transmit power of the signal itself. For example, the information may indicate the power of other channels or signals.

[0064] In some embodiments, the sounding reference signal (SRS) request information may include instructions related to the SRS. For example, the information may indicate whether / how the UE should send the SRS or SRS request.

[0065] In some embodiments, the preemption indication information may include instructions related to resource preemption. For example, the information may indicate whether and how the gNB preempts resources. For example, the information may indicate whether and how the UE detects the signal or other resources based on the information.

[0066] In some embodiments, the channel occupancy time (COT) period indicator information may include information related to channel occupancy, for example, the information may indicate whether / how the UE performs / operates according to the COT duration.

[0067] In some embodiments, the available resource block (RB) set indicator information may include information about the available resource block (RB) set. For example, the information may indicate whether / how the UE performs / operates according to the available resource block (RB) set.

[0068] In some embodiments, the secondary cell (SCell) dormancy indication information may include information related to the SCell. For example, the information may indicate whether / how the gNB should activate the SCell. For example, the information may indicate whether / how the UE should perform / operate based on the information.

[0069] In some embodiments, the combined information based on any of the aforementioned information may include any combination of the first information, any part of the first information, and any information based on the first information.

[0070] For example, some combinations of the above information may be at least one of the following: ID information and a wake-up indication; ID information and CRC or RNTI information; and wake-up indication and CRC or RNTI information. For example, some combinations of the above information and other information may be: ID information or a wake-up indication and other predefined / configured bits. For example, information based on the above information may be: a combination of any of the above information and other information.

[0071] In some embodiments, the combined information may be a joint indication. In some embodiments, the ID information may include cell ID information.

[0072] Implementation Example 2: Structure

[0073] A signal (e.g., a low-power wake-up signal (LP-WUS)) may include at least one of the following: a preamble portion including at least one preamble; a payload or data portion including at least one bit; or a combination of the preamble portion and the payload or data portion. The LP-WUS may be used to specify that the signal is used to wake up a specific UE.

[0074] If a signal is not provided with a preamble to transmit data, a high false detection rate may result because the UE cannot know when the data is transmitted. Therefore, it may be necessary to define the starting position of the data through a sequence, a preamble or a number of bits.

[0075] (1) Preamble

[0076] In some embodiments, a signal in connected mode (e.g., an LP-WUS) may include a preamble. The preamble may be configured or predefined by the gNB. In some embodiments, the LP-WUS in connected mode may include a preamble and data. In some embodiments, the LP-WUS in connected mode may include a preamble, data, and a preamble. The preamble may include a predefined / configured sequence. This sequence may be used to determine the start position of the data portion of the signal and whether to receive / detect the signal. In this case, the preamble / sequence may be predetermined / predefined. In some embodiments, the sequence may be used to determine the end position of the signal (the data portion) and the position at which reception / detection of the signal ceases. In this case, the preamble / sequence may be predetermined / predefined.

[0077] In some embodiments, a preamble may be used in connected mode. If the preamble is used for different UEs, at least one of the following conditions may be met: the number of preambles does not exceed 128; the number of preambles does not exceed 64; the number of preambles does not exceed 16; the number of preambles may be configured by the gNB / higher layers / system information block (SIB) / radio resource control (RRC), and the values ​​may include {8, 16, 64, 128}; the length of the preambles may be the same; the length of the preambles may be different but not more than x types (e.g., 4 types); the preamble may be associated with a WUR ID or UE ID, and different preambles may be associated with different UE IDs / WUR IDs; the preamble may be associated with a group of UEs, and different preambles may be associated with different UE groups (IDs); or different preambles may indicate different wake-up durations.

[0078] In some embodiments, the preamble may be transmitted at least once within a duration. For example, the duration may be based on microseconds, milliseconds, symbols, time slots, or other time units. In some embodiments, the preamble may be transmitted periodically. In some embodiments, the preamble or the signal may be associated with a synchronization signal or a periodic signal.

[0079] If the preamble code / sequence is used to determine the start / end position of the LP-WUS, at least one of the following conditions must be met: the sequence length can be configured by the gNB / higher layer / SIB / RRC; the sequence length can be predefined; or the symbols occupied by the preamble code / sequence do not exceed 3 symbols or 1 time slot or N bits.

[0080] If two preambles / sequences are used to determine the start and end positions of the LP-WUS, at least one of the following conditions must be met: the sequences are of the same length; the two preambles are identical; the two preambles are related or associated; or the preambles / sequences are predefined or configurable. For example, one preamble can be part of the other. In another example, the two preambles can be complementary. For example, the second preamble can repeat the first preamble.

[0081] (2) Preamble + fixed data size

[0082] In some embodiments, the preamble and fixed data size can be used in either connected or inactive mode. The data portion can carry ID information, cyclic redundancy check (CRC) information, radio network temporary identifier (RNTI) information, or information based on any of the foregoing to identify a specific UE or group of UEs. The length of the data portion can be predefined, configured by the gNB, or determined by the preamble.

[0083] In some embodiments, both the preamble and the data portion may carry ID information or ID-based information. The ID-based information may include partial ID information. By decoding both the preamble and the data portion, complete ID information or partial ID information may be decoded. ID information may include: user equipment (UE) or wireless communication device identifier (ID) information; defined ID information; UE or wireless communication device group information; defined group ID information; or cell ID.

[0084] The connected mode may correspond to the RRC_CONNECTED state. The inactive mode may correspond to the RRC_INACTIVE state. The idle mode may correspond to the RRC_IDLE state.

[0085] In some embodiments, a preamble and configurable / variable data size may be used for idle mode.

[0086] (3) Preamble + configurable / variable data size

[0087] The preamble may indicate the length / size of the data (e.g., different preambles may correspond to different data sizes). Predefined / configured bits (e.g., the MSB) in the data portion may indicate the length / size of the data. For example, 1, 2, 3, or x bits may indicate different data lengths. The predefined / configured bits in the data portion may explicitly or implicitly indicate the length of the data in the data portion. Predefined / configured fields / bits in the data portion of the WUS may indicate the information or fields of the information carried. The information carried may include an ID, ID-based information, system information (SI) notification, or cell ID / tracking area / RAN area. For example, a bitmap field may be used to indicate whether the following information fields are included: whether the SI notification field is included, whether the TA information field is included, or whether the cell ID information field is included. For example, several bits may be included to indicate whether these information fields are included. The size of the information field carried may be indicated by the gNB, higher layers, the system information block (SIB), radio resource control (RRC), the media access control element (MAC CE), or downlink control information (DCI). The size of the predefined / configured field / bits may be indicated by the gNB, higher layers, system information block (SIB), radio resource control (RRC), medium access control element (MAC CE), or downlink control information (DCI).

[0088] In some embodiments, the preamble portion may include or indicate at least one of the following: the size of the payload portion; the format of the payload portion or the format of the signal; the location of the payload portion; the time or frequency offset between the preamble portion and the payload portion; the presence of specific information in the payload portion; the presence of specific indicators, bits, or fields in the payload portion; frequency hopping of the payload portion; repetition of the payload portion; information based on a cell identifier (ID) or user equipment related information. In some UE embodiments, the UE related information may include an indication for a UE, a group of UEs, multiple UEs, or all UEs in a cell.

[0089] In some embodiments, the preamble and data portion may have the same center frequency. The preamble and data portion may have a frequency offset based on an upper boundary, a lower boundary, or a center frequency. The data portion may have a frequency offset based on an upper boundary, a lower boundary, or a center frequency of the preamble. Resource allocation for the preamble or data portion may be configured by the gNB, higher layers, SIB, RRC, a media access control element (MAC CE), or downlink control information (DCI). The data portion may have a time offset / gap / duration after the preamble. The data portion may be time offset from the preamble. The UE may monitor / receive / detect the LP-WUS data portion X slots / symbols / milliseconds / microseconds / time units after the preamble, where X may be the time offset / gap / duration.

[0090] In some embodiments, there may be a frequency offset between the preamble portion and the payload portion; or there may be a time offset between the preamble portion and the payload portion. The time offset may also be a duration, based on a gap in microseconds, milliseconds, symbols, time slots, or other time units. The frequency offset may also be a frequency gap based on the number of subcarriers and / or SCS.

[0091] (4) Preamble + variable data size + preamble

[0092] The first preamble may be used to determine the starting position of the LP-WUS. The second preamble may be used to determine the ending position of the LP-WUS. The data portion may have a predefined / configured relative position for each field or information. The data portion may have a predefined / configured size for each field or information. The data portion may carry at least one of the following: wake-up information, UE ID information, group ID information, system information modification, Earthquake and Tsunami Warning System (ETWS), cell ID / tracking area / radio access network area, tracking reference signal (TRS), or first information. The first preamble and the second preamble may have the same frequency domain position, the same frequency resource, or the same frequency resource allocation. There may be a frequency offset between the first preamble and the second preamble (e.g., based on an upper boundary, a lower boundary, or a center frequency). The first preamble, the data portion, and the second preamble may have the same center frequency, the same frequency domain position, the same frequency resource, or the same frequency resource allocation.

[0093] In some embodiments, the frequency offset between the first preamble and the data portion may be a first frequency offset. The frequency offset between the second preamble and the data portion may be a second frequency offset. The first frequency offset may be the same as or different from the second frequency offset. The frequency offset may be configured by the gNB.

[0094] In some embodiments, the time offset / gap / duration between the first preamble and the data portion may be a first time offset. The time offset / gap / duration between the second preamble and the data portion may be a second time offset. The first time offset may be the same as or different from the second time offset. The time offsets may be configured by the gNB. In some embodiments, the first time offset and the second time offset may be predefined, signaled to the wireless communication device, or indicated to the wireless communication device via downlink control information (DCI) signaling.

[0095] Implementation Example 3: Format

[0096] (1) Based on this signal structure, the following LP-WUS formats / types can be defined.

[0097] In some embodiments, the first format may be: a preamble. The first format may be defined based on the preamble.

[0098] The second format may be: preamble+data. The second format may be defined based on the preamble and data.

[0099] In some embodiments, the first format may be a preamble. The first format may be defined based on the preamble.

[0100] The second format may be: preamble + fixed data size. The second format may be defined based on the preamble and fixed-size data.

[0101] The third format may be: preamble + configurable / variable data size. The third format may be defined based on the preamble and the variable size data.

[0102] The fourth format may be: preamble + data + preamble. The third format may be defined based on the preamble, variable data, and preamble.

[0103] In some embodiments, the number of LP-WUS formats / types does not exceed four. Different formats / types may correspond to different signal structures. Different formats / types may have different data sizes. Different formats / types may include different parts, such as preambles or data parts. Different formats / types may have fixed or indicative / variable / configurable data sizes. Different formats / types may have different usage scenarios (e.g., for different RRC states).

[0104] Connection Mode First format Connected mode or inactive mode Second format Inactive mode or idle mode Third format

[0105] Table 1

[0106] Different formats / types can be applied to a single UE, a group of UEs, multiple different UEs, or all UEs in a cell. For example, a first format can be applied to a single UE. For example, a second format can be applied to a group of UEs. For example, a third format can be applied to multiple specific UEs. Different signal formats may have different subcarrier spacing (SCS) / repetitions. Different signal formats may have different definitions of data length / size.

[0107] Data length = 0 First format Fixed data length Second format Configurable / variable data length Third format

[0108] Table 2

[0109] (2) Based on the preamble structure, the following LP-WUS formats / types can be defined:

[0110] Different signal formats can correspond to different preamble codes (as shown in Table 3)

[0111] Preamble 1 to x1 First format Preamble x1+1~x2 Second format Preamble x2+1~128 / 64 / 32 / 16 Third format

[0112] Table 3

[0113] Different signal formats correspond to different preamble lengths (as shown in Table 4)

[0114] Preamble length: Short First format Preamble length: long Second format

[0115] Table 4

[0116] (3) Based on the preamble + data structure, the following LP-WUS formats / types can be defined.

[0117] Different signal formats may correspond to different data sizes / lengths. These formats / types may have fixed or indicative / variable / configurable data sizes. Different formats / types have different usage scenarios (eg, for different RRC states).

[0118] In some implementations, the format may be based on multiple preambles; different preamble lengths may have different formats. Preambles for different information or purposes may use different formats. For example, a preamble for a starting position or an ending position may use a different format than a preamble for UE-related information.

[0119] In some embodiments, the format may be determined based on the following factors: the presence of a preamble portion, the presence of a data portion, frequency hopping, the presence of CRC bits, the number of CRC bits, the number of preamble portions, the waveform, the SCS, the modulation scheme, the presence of specific information, or the presence of gaps. These waveforms may include cyclic prefix orthogonal frequency division multiplexing (CP-OFDM), direct Fourier transform spread spectrum (DFT-S), or OFDM. These modulation schemes may include on-off keying (OOK), frequency shift keying (FSK), amplitude shift keying (ASK), or OFDM. The gaps may include time gaps or frequency gaps.

[0120] In some embodiments, the format may be based on the number of UEs or a range of different UE numbers. For example, if the signal is intended for a single UE, format 1 may be used. If the signal is intended for multiple UEs, format 2 may be used.

[0121] In some embodiments, the format may be based on whether specific information is present. For example, if UE ID information is included / present, then the relevant format may be defined / used / configured / received. If the UE ID and cell ID are defined, then the relevant format may be defined / used / configured / received.

[0122] In some embodiments, the format may be determined based on the RRC state, where the RRC state includes the RRC_CONNECTED state, the RRC_INACTIVE state, and the RRC_IDLE state. For example, different signal formats may be defined for different RRC states.

[0123] In some embodiments, the signal may include one or more formats. The wireless communication device may determine one of the multiple formats used when receiving the signal based on at least one of the following: a radio resource control (RRC) state; received signaling; or one or more resources used to transmit the signal.

[0124] In some embodiments, the wireless communication device may determine one of the multiple formats based on the RRC_CONNECTED state. The one of the multiple formats may include at least one of the following: multiple preambles, a fixed data size, a configurable data size, a cyclic redundancy check (CRC) bit, UE identifier (ID) related information, UE group ID related information, or physical downlink control channel (PDCCH) related information.

[0125] In some embodiments, the wireless communication device may determine one of multiple formats of the received signal, including at least one of the following: the UE receives a format with a configurable / variable data size in idle mode and a format with a fixed data size in connected mode; the UE receives a format with a longer preamble length in idle mode and a format with a shorter preamble length in connected mode; the UE receives a format with a larger payload in idle mode and a format with a smaller payload in connected mode; the UE receives a format with a larger gap between the preamble and the payload portion in idle mode and a format with a smaller gap between the preamble and the payload portion in connected mode; the UE receives a format including a preamble portion in idle mode and a format not including a preamble portion in connected mode; the UE receives a format including a preamble portion in idle mode and a format including a preamble portion in connected mode; the UE receives a format including specific information in idle mode and a format not including specific information in connected mode. The specific information may be either a cell ID or the first information.

[0126] Implementation Example 4: Activation / Deactivation

[0127] In some embodiments, the signal may be received when the wireless communication device is in an RRC_CONNECTED state. The wireless communication device may determine behavior in the RRC_CONNECTED state.

[0128] In some embodiments, the situations in which the wireless communication device receives the signal in the RRC_CONNECTED state include at least one of the following: when parameters are configured through radio resource control (RRC), media access control control element (MAC CE) or system information block (SIB) signaling; when one or more bits or fields exist or are indicated in downlink control information (DCI) signaling; when a specific timer expires or before it expires; after a specific duration; after a specific physical downlink control channel (PDCCH) opportunity or after several PDCCH opportunities (for example, after predefined, after signaling indication or after DCI indication); within the duration before the start point of discontinuous reception on (DRX on); within the duration before the physical downlink control channel (PDCCH) opportunity; during discontinuous reception off (DRX off); during wake-up radio on (WUR on); during DRX on; or according to predefined conditions.

[0129] In some embodiments, the wireless communication device may receive the signal in the RRC_CONNECTED state when or before a specific timer expires. For example, the UE may receive the signal when the DRX On Period timer expires. For example, the UE may receive the signal before the DRX On Period timer expires. For example, the UE may receive the signal when or before a defined timer expires.

[0130] In some embodiments, the wireless communication device may receive the signal in the RRC_CONNECTED state after a specific duration. For example, the UE may receive the signal again after a duration has passed since the UE received the signal. For example, the UE may receive the signal after a duration has passed since a specific PDCCH. For example, the UE may receive the signal after a duration has passed since a PUCCH. For example, the UE may receive the signal after a duration has passed since a specific signal / channel. For example, the UE may receive the signal after a duration has passed since a signaling transmission by the gNB.

[0131] In some embodiments, the wireless communication device may receive the signal in the RRC_CONNECTED state before the DRX start point. In some embodiments, the wireless communication device may receive the signal in the RRC_CONNECTED state within a specific duration before the DRX start point. In some embodiments, the wireless communication device may receive the signal in the RRC_CONNECTED state during a wake-up radio start (WUR start) period. The WUR start period can be regarded as a time window. And / or the offset or periodicity of the WUR start period can be configured. In some embodiments, the wireless communication device may receive the signal in the RRC_CONNECTED state according to predefined conditions. For example, the condition may be based on measurement results, RSRP, RSSI, or RSRQ. In some embodiments, "receiving" may also refer to detecting or monitoring.

[0132] In some embodiments, when the wireless communication device is in the RRC_CONNECTED state, the device may not need to receive a signal in at least one of the following situations: after the wireless communication device receives the signal in the RRC_CONNECTED state, it may stop receiving the signal in at least one of the following situations: when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is sent; when parameters are configured through radio resource control (RRC), media access control control element (MAC CE) or system information block (SIB) signaling; when one or more bits or fields are present or indicated in downlink control information (DCI) signaling; when DCI is received; when a physical downlink shared channel (PDSCH) is received; after a physical uplink control channel (PUCCH) is sent; based on the configuration of the wireless communication device; before or after a specific duration; before or after expiration of a specific timer; or before or after a specific physical downlink control channel (PDCCH) timing.

[0133] In some embodiments, when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is transmitted, the UE may stop receiving or not receive the signal. For example, the DL channel may be the PDSCH, or the UL channel may be the PUCCH.

[0134] In some embodiments, upon receiving DCI signaling, the UE may stop receiving or not receive the signal. For example, the DCI may be DCI with a scrambled C-RNTI. The DCI may be DCI received at a specific PDCCH timing. The DCI may be the first DCI received during a DRX-on period.

[0135] In some embodiments, the UE may stop receiving or may not need to receive the signal before or after a specific duration. For example, the specific time period may be the duration after the PDCCH opportunity, DL signal / channel or LP-WUS signal. For example, the specific duration may be before the PDCCH opportunity, uplink signal / channel or DRX on period. For example, the UE may stop receiving the signal after the DRX on duration ends. For example, the UE may stop receiving the signal after the DRX off starts. For example, the UE does not need to receive the signal for the duration after receiving the PDCCH. For example, the UE does not need to receive the signal after the duration defined for the WUS on period ends.

[0136] In some embodiments, the UE may stop receiving or not receive the signal before or after a specific timer expires; for example, the timer may be related to drx-onDurationTimer, drx-InactivityTimer, or bwp-InactivityTimer.

[0137] In some embodiments, the UE may stop receiving or not receive the signal before or after a specific physical downlink control channel (PDCCH) opportunity. For example, before the first PDCCH opportunity in a DRX-on period, the UE may stop receiving or not receive the signal. For example, before the last PDCCH opportunity in a DRX-on period, the UE may stop receiving or not receive the signal.

[0138] In some embodiments, the signal (e.g., LP-WUS) may be configured with at least one of the following characteristics: number of repetitions; period; duration; no more than one time slot and / or resources within a 5 MHz, 20 MHz, or 50 MHz bandwidth; or frequency hopping. For example, the number of repetitions may be at least one value from {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024}. For example, the period may be at least one value from {10, 20, 40, 80, 160, 320, 640, 1280, 2560} milliseconds / microseconds / time slot or other time units. For example, the duration may be {10, 20, 40, 80, 160, 320, 640, 1280, 2560} milliseconds / microseconds / time slot or other time units. For example, the frequency hopping may be a frequency hopping flag.

[0139] In some embodiments, the wireless communication device may determine an action based on the signal. The action may include at least one of: transmitting a physical random access channel (PRACH) or msgA by the wireless communication device; transmitting a physical uplink control channel (PUCCH) by the wireless communication device; transmitting a physical uplink control channel (PUCCH) with HARQ-ACK by the wireless communication device; receiving a PDCCH by the wireless communication device; monitoring a PDCCH opportunity by the wireless communication device; receiving a paging channel or transmission by the wireless communication device; monitoring a paging opportunity by the wireless communication device; activating a DRX on period; starting a timer; or activating measurement, detection, reception, or transmission of a reference signal (RS).

[0140] In some embodiments, the action may include activating measurement, detection, reception, or transmission of a reference signal (RS). For example, the UE may need to perform measurements after receiving an LP-WUS signal. For example, the UE may trigger SRS / PUCCH transmission after receiving the LP-WUS signal. For example, the UE may report CSI after receiving the LP-WUS signal. For example, the UE may receive TRA, CSI-RS, SSB, PSS, or SSS after receiving the signal.

[0141] In some embodiments, the behavior may include the wireless communication device sending a physical random access channel (PRACH) or msgA. For example, the PRACH resource may be configured by a higher layer and may be dedicated to the LP-WUS function. For example, the PRACH timing for sending the PRACH after the signal (such as LP-WUS) may be based on the UE ID or ID information or UE-related information. For example, the UE ID or ID information or UE-related information carried in msg2 or msg3 after the PRACH may indicate that the corresponding UE may not be paged by the network.

[0142] In some embodiments, the wireless communication device may determine the behavior based on the signal after or based on at least one of the following: a time period or duration; a number of PDCCH opportunities; a specific PDCCH opportunity; or the expiration of a timer. For example, the UE behavior may occur after a certain duration. For example, the UE behavior may continue to occur for a certain duration. For example, the UE behavior may occur after a specific PDCCH opportunity. For example, the UE behavior may be determined based on PDCCH opportunities, including paging opportunities, RACH opportunities, and other PDCCH opportunities. For example, the UE behavior may occur after / based on the expiration of a timer. For example, the timer may be related to DRX or BWP switching.

[0143] In some embodiments, the LP-WUS may be used as an example of the signal and may be replaced by a signal.

[0144] activation

[0145] The following configurations or conditions must be met when a second node (e.g., a UE or WUR) receives LP-WUS in connected mode. Parameters may be configured for the UE via RRC / SIB / higher layer / MAC signaling to enable or activate LP-WUS. The UE may receive DCI indicating continuous monitoring of LP-WUS (e.g., via a 1-bit indication in a field). Timers (e.g., drx-onDurationTimer, drx-InactivityTimer, bwp-InactivityTimer) may expire.

[0146] In some embodiments, the following configuration or conditions must be met when a second node (e.g., a UE or WUR) receives LP-WUS in inactive / idle mode. The UE may be configured with this parameter via SIB / higher layer / MAC signaling to enable or activate LP-WUS. A DCI format 1-0 may indicate the enabling or activation of LP-WUS.

[0147] Deactivation

[0148] The second node (eg, UE or WUR) may not receive / monitor LP-WUS in connected mode if the following configurations or conditions exist.

[0149] After receiving the LP-WUS, the second node may stop continuously monitoring / detecting the signal. For the non-discontinuous reception (DRX) working mode, the UE in the connected state may remain awake. If the LP-WUS is only effective at the first wake-up, significant energy saving benefits may not be achieved. Therefore, after the base station sends the data, the second node may continue to remain in a dormant state. After receiving the LP-WUS, the monitoring of the LP-WUS may be temporarily turned off, and an indication may be waited for to notify the second node that the data transmission is completed. The second node may remain in a dormant state while continuing to monitor the LP-WUS. For the DRX working mode, in addition to the newly defined instructions, the second node may rely on turning off and on DRX to monitor the LP-WUS.

[0150] After receiving the LP-WUS, the second node may continue to monitor / detect the LP-WUS. The second node may monitor other signaling (non-wake-up signaling). Other signaling may include, for example, disabling LP-WUS monitoring and disabling LP-WUS functionality. Both can be accomplished via downlink control information (DCI) or higher-layer signaling. However, there may be insufficient motivation to continue monitoring after receiving the LP-WUS.

[0151] A more reasonable approach is that when the second node receives an LP-WUS wake-up signal in the connected state, the second node may stop detecting LP-WUS until receiving a signaling instruction to resume LP-WUS detection. This may mean / indicate that the data transmission has completed at a specific stage. In some embodiments, the UE may wake up after receiving the LP-WUS. The UE may receive a DL grant / DCI. The UE may receive deactivation signaling via RRC signaling / system information block (SIB) / higher layer signaling / MAC signaling.

[0152] Implementation Example 5: Other Considerations

[0153] The number of repetitions of LP-WUS transmission in connected mode can be configured through RRC / SIB / higher layer parameters / MAC control element (MACCE).

[0154] The number of symbols occupied by LP-WUS can be a multiple of 7 or 14. In this way, multiple repetitions can be ensured to make the resource allocation as dispersed as possible.

[0155] In the idle state, the UE may initiate a physical random access channel (PRACH0) to verify that the LP-WUS is effectively awake. In the connected state, the UE may determine whether to continue initiating PRACH. In the idle state, the LP-WUS may indicate whether independent allocation of PRACH resources is permitted. If the base station is not awake, the LP-WUS may be indicated in the DCI of msg2 or msg3. In some embodiments, random access initiated by the LP-WUS may use independent PRACH resources.

[0156] After receiving the LP-WUS, the UE may send a signal / channel to the gNB within a duration or after a delay. This signal / channel may include a dedicated PRACH and / or PUCCH. The dedicated PRACH may be configured via higher layer parameters / RRC. A preconfigured / predefined PUCCH or certain bits of the PUCCH may indicate that this is LP-WUS feedback. The duration or delay may be configured via higher layer / RRC parameters / SIB.

[0157] After receiving the LP-WUS, the UE may send a signal / channel to the gNB in ​​connected mode for the duration or after a delay.

[0158] If the UE does not receive DCI / grant within the duration after sending the PUCCH or PRACH for LP-WUS, the UE may wake up.

[0159] If the UE does not receive DCI / grant within subsequent 1 to x PDCCH opportunities after sending the PUCCH or PRACH for the LP-WUS, the UE may wake up.

[0160] It should be understood that one or more features of the above-described embodiments are not exclusive to a particular embodiment example, but may be combined in any manner (eg, in any priority and / or order, in parallel or otherwise).

[0161] Figure 5 The energy saving flow chart according to the embodiment of the present disclosure is shown. Figure 1-2 In some embodiments, method 500 may be performed by a wireless communication device. Depending on the embodiment, method 500 may include more, fewer, or different steps. At least one aspect of the operations may involve a system, method, apparatus, or computer-readable medium.

[0162] A wireless communication device (e.g., a UE) may receive a signal (e.g., a low power consumption signal, a wake-up signal WUS, or a low power consumption wake-up signal) from a wireless communication node (e.g., a BS). The wireless communication device may determine an operation behavior based on the signal. The signal may include first information. The first information may include at least one of the following: wake-up information; user equipment (UE) or wireless communication device identifier (ID) information; defined ID information; UE or wireless communication device group information; defined group ID information; cyclic redundancy check (CRC) information; radio network temporary identifier (RNTI) information; duration or offset information; scrambling information; physical downlink control channel (PDCCH) related information; repetition information; frequency hopping information; discontinuous reception (DRX) related information; channel state information reference signal (CSI-RS) related information; tracking reference signal (TRS) availability information; search space (SS) group switching information; PDCCH skipping information; transmit power control (TPC) command information; sounding reference signal (SRS) request information; preemption indication information; channel occupancy time (COT) period indicator information; available resource block (RB) set indicator information; secondary cell (SCell) sleep indication information; or information based on any of the foregoing information.

[0163] In some embodiments, a low power wake-up signal (LP-WUS) may trigger an action for energy saving by the UE, rather than continuously maintaining a monitoring state. The wake-up information may be information about the wake-up timing (e.g., the duration / offset / duration before the wake-up occurs). The physical downlink control channel (PDCCH) information may include a predefined, signaled, or indicated PDCCH timing. The information based on any of the foregoing information includes at least one of the following: an information combination of the first information, information based on the UE ID, or a portion of the UE Id information. The duration / offset information may include at least one of the following: the duration / offset between the signal and the PDCCH timing; the duration / offset between the signal and the PRACH timing; or the duration / offset between the signal and the paging timing.

[0164] In some embodiments, the signal may include at least one of the following: a preamble portion; or a payload portion. The preamble portion may include at least one preamble. The payload portion may include at least one bit. The preamble portion and the payload portion may include: the preamble portion, followed by an offset, and then the payload portion. The offset may be a duration / interval based on a subcarrier, a time unit, a symbol, a time slot, microseconds, or milliseconds (e.g., 0, 10, or 20). The offset may include: a frequency offset between the preamble portion and the payload portion; or a time offset between the preamble portion and the payload portion. The payload may or may not include a cyclic redundancy check (CRC). The payload portion and the data portion may be similar. The preamble portion and the payload portion may include: a first preamble portion, followed by the payload portion, and then a second preamble portion.

[0165] In some embodiments, the first preamble portion, the payload portion, and the second preamble portion may be continuous in the time domain. A first time offset (e.g., a gap, period, cycle, or interval) between the first preamble portion and the payload portion may be the same as a second time offset between the second preamble portion and the payload portion. The first time offset and the second time offset may be predefined, or notified to the wireless communication device via signaling, or indicated to the wireless communication device via downlink control information (DCI) signaling. The preamble portion may include or indicate at least one of the following: the first information or information based on the first information; the size of the payload portion; the format of the payload portion or the format of the signal; the position of the payload portion (for example, the starting position or the ending position); the time or frequency offset between the preamble portion and the payload portion; the presence of specific information in the payload portion; the presence of specific indicators, bits or fields in the payload portion; frequency hopping of the payload portion; repetition of the payload portion; information based on a cell identifier (ID) (for example, a partial cell ID, a full cell ID, a tracking area or a RAN area); or information related to the UE.

[0166] In some embodiments, the preamble portion and the payload portion may be continuous in the time domain or frequency domain. The frequency offset or the time offset may be predefined, or notified to the wireless communication device via signaling, or indicated to the wireless communication device via downlink control information (DCI) signaling. The signaling may include radio resource control (RRC) signaling, media access control element (MAC CE) signaling, or system information block (SIB) signaling. In some embodiments, the UE may check / detect the preamble portion by blind detection of candidate signals.

[0167] In some embodiments, the signal may include one of a plurality of formats. The plurality of formats may include at least one of the following: a format based on a plurality of preambles; a format based on the preamble portion; a format based on the preamble portion and the payload portion; a format based on the preamble portion and the payload portion of a fixed size; a format based on the preamble portion and the payload portion of a configurable or variable size; a format based on the first preamble portion, the payload portion, and the second preamble portion; a format based on the payload portion; a format based on the payload portion and cyclic redundancy check (CRC) bits; a format based on the CRC bits and the payload portion of a fixed size. The format of the payload portion; a format defined based on the CRC bits and a configurable or variable size of the payload portion; a format based on a waveform; a format based on a modulation scheme; a format based on the presence of specific information; a format based on a subcarrier spacing (SCS); a format based on the number of repetitions of the signal, the preamble portion, or the payload portion; a format based on the size (or length) of the payload portion or the signal; a format based on the number of user equipment (UE) or wireless communication devices (e.g., providing term coverage for UEs); a format based on UE-related information; or a format based on the RRC state. If a UE ID is included / present, a related format may be defined. If a UE ID and cell ID are defined, a related format may be defined.

[0168] In some embodiments, the signal may include one or more formats. The wireless communication device may determine one of the multiple formats used when receiving the signal based on at least one of the following: a radio resource control (RRC) state; received signaling; or one or more resources used to transmit the signal. The RRC state may include an RRC_CONNECTED state, an RRC_INACTIVE state, or an RRC_IDLE state.

[0169] In some embodiments, the wireless communication device may determine one of the multiple formats based on the RRC_CONNECTED state. The one of the multiple formats may include at least one of the following: multiple preambles, a fixed data size, a configurable data size, cyclic redundancy check (CRC) bits, UE identifier (ID) related information, UE group ID related information, or physical downlink control channel (PDCCH) related information. For example, in the idle state, the information may include a cell ID, a cell-specific wake-up, or a group UE ID.

[0170] In some embodiments, the wireless communication device may receive the signal when it is in the RRC_CONNECTED state. The wireless communication device may determine the action to be performed in the RRC_CONNECTED state. The wireless communication device may receive the signal in the RRC_CONNECTED state in at least one of the following situations: when parameters are configured through radio resource control (RRC), media access control control element (MAC CE) or system information block (SIB) signaling; when one or more bits or fields are present or indicated in downlink control information (DCI) signaling; before or at the expiration of a specific timer; after a specific duration; after a specific physical downlink control channel (PDCCH) opportunity or after several PDCCH opportunities (such as predefined, signaling indication or DCI indication); within the duration before the DRX on start point; within the duration before the PDCCH opportunity; during discontinuous reception off (DRX off); during wake-up radio on (WUR on); during DRX on; or according to predefined conditions. In some embodiments, in addition to the PDCCH opportunity, the wireless communication device may continue to monitor after triggering DRX on or DRX off. The predefined condition may include that once the LP-WUS is configured, the wireless communication device may maintain detection.

[0171] In some embodiments, when the wireless communication device is in the RRC_CONNECTED state, the signal may not be received in at least one of the following situations: when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is sent; when parameters are configured through RRC, MAC CE or SIB signaling; when one or more bits or fields are present or indicated in the DCI signaling; when DCI is received; when a physical downlink shared channel (PDSCH) is received; after a physical uplink control channel (PUCCH) is sent; based on the configuration of the wireless communication device; before or after a specific duration; before or after expiration of a specific timer; or before or after a specific PDCCH opportunity.

[0172] In some embodiments, when the wireless communication device is in the RRC_CONNECTED state, it may not receive a signal in at least one of the following situations: when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is sent; when parameters are configured through RRC, MAC CE or SIB signaling; when one or more bits or fields are present or indicated in the DCI signaling; when DCI signaling is received; when PDSCH is received; after sending PUCCH; based on the configuration of the wireless communication device; before or after a specific duration; before or after expiration of a specific timer; or before or after a specific PDCCH opportunity.

[0173] In some embodiments, when the wireless communication device is in the RRC_CONNECTED state, the UE may stop receiving the signal in at least one of the following situations: when a specific downlink (DL) signal or channel is received, or when a specific uplink (UL) signal or channel is sent; when parameters are configured through radio resource control (RRC), media access control control element (MACCE) or system information block (SIB) signaling; when one or more bits or fields are present or indicated in downlink control information (DCI) signaling; when DCI signaling is received; when a physical downlink shared channel (PDSCH) is received; after sending a physical uplink control channel (PUCCH); based on the configuration of the wireless communication device; before or after a specific duration; before or after expiration of a specific timer; or before or after a specific physical downlink control channel (PDCCH) timing.

[0174] In some embodiments, the signal may be configured with at least one of the following: number of repetitions; period; duration; no more than one time slot and / or resources within a range of 5 MHz, 20 MHz, or 50 MHz; or frequency hopping. The signal may include / may be at least one of the following: radio resource control (RRC) signaling, system information block (SIB) signaling, medium access control element (MAC CE) signaling, or downlink control information (DCI) signaling.

[0175] In some embodiments, the wireless communication device may determine the behavior based on the signal, and the behavior includes at least one of the following: sending a physical random access channel (PRACH) or msgA by the wireless communication device; sending a physical uplink control channel (PUCCH) by the wireless communication device; sending a physical uplink control channel (PUCCH) with HARQ-ACK by the wireless communication device; receiving PDCCH by the wireless communication device; monitoring PDCCH timing by the wireless communication device; receiving a paging channel or transmission by the wireless communication device; monitoring paging timing by the wireless communication device; activating a DRX on period (such as the next DRX on period); starting a timer; or activating measurement, detection, reception or transmission of a reference signal (RS).

[0176] In some embodiments, the wireless communication device may determine the action from the signal after or based on at least one of: a time period or duration; a number of PDCCH opportunities; a specific PDCCH opportunity; or expiration of a timer.

[0177] In some embodiments, the wireless communication node (eg, a base station) may send a signal (eg, a low power consumption signal (WUS)) to a wireless communication device (eg, a UE). The wireless communication device may determine an action based on the signal.

[0178] Although various embodiments of the present invention have been described above, it should be understood that these embodiments are presented only as examples and are not intended to be limiting. Similarly, the exemplary architectures or configurations shown in the schematic diagrams are intended to enable those of ordinary skill in the art to understand the exemplary features and functions of the present invention. However, relevant technical personnel should understand that the present invention is not limited to the exemplary architectures or configurations shown in the diagrams, but can be implemented using a variety of alternative architectures and configurations. In addition, as understood by those of ordinary skill in the art, one or more features in a certain embodiment can be combined with one or more features of another embodiment described herein. Therefore, the scope of the present disclosure should not be subject to any limitations of the above-mentioned illustrative embodiments.

[0179] It should also be understood that any reference to an element herein using terms such as "first," "second," etc., does not generally limit the number or order of those elements. These terms are merely a convenient way to distinguish between two or more elements or instances of an element. Thus, a reference to a first and a second element does not imply that only two elements may be employed, nor does it imply that the first element must precede the second element in some manner.

[0180] Furthermore, those skilled in the art will appreciate that information and signals can be represented using a variety of different technical means. For example, the data, instructions, commands, information, signals, bits, and symbols described above can all be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0181] It will also be understood by those skilled in the art that any exemplary logic blocks, modules, processors, devices, circuits, and method functions described in the various aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination thereof), firmware, various forms of programs or design code containing instructions (for convenience, referred to herein as "software" or "software modules"), or any combination of these technologies. To clearly illustrate the interchangeability of hardware, firmware, and software, various exemplary components, blocks, modules, circuits, and steps have been generally described above from a functional perspective. Whether such functions are implemented as hardware, firmware, or software, or a combination of these technologies, depends on the specific application and the design constraints imposed on the overall system. Technicians may implement the described functions in different ways for each specific application, but such implementation decisions should not be considered to depart from the scope of this disclosure.

[0182] Furthermore, it will be understood by those skilled in the art that the various exemplary logic blocks, modules, devices, components, and circuits described herein may be implemented within or performed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logic blocks, modules, and circuits may also include an antenna and / or transceiver for communicating with components within a network or within a device. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other suitable configuration capable of performing the functions described herein.

[0183] If implemented in software, these functions may be stored as one or more instructions or codes on a computer-readable medium. Thus, the steps of the methods or algorithms disclosed herein may be embodied as software stored on a computer-readable medium. Computer-readable media include computer storage media and communication media, encompassing any medium capable of implementing the transfer of a computer program or code between locations. The storage medium may be any available medium that is accessible to a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can store the desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0184] Throughout this document, the term "module" refers to software, firmware, hardware, or any combination of these elements used to perform the functions described herein. Furthermore, for ease of discussion, each module is described as a separate module; however, those skilled in the art will appreciate that, depending on the embodiment of the solution, two or more modules can be combined into a single module to perform the relevant functions.

[0185] In addition, memory or other storage devices and communication components may be used in embodiments of the present solution. It should be understood that, for the sake of clarity, the above description illustrates embodiments of the present solution with reference to different functional units and processors. However, it is obvious that any suitable functional allocation method can be used to distribute functions among different functional units, processing logic elements or domains without departing from the present solution. For example, a function shown as being performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Therefore, reference to a particular functional unit refers only to the appropriate means for providing that function, and does not imply a strict logical or physical structure or organization.

[0186] Various modifications to the embodiments described herein will readily occur to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments shown herein but is to be accorded the widest scope consistent with the novel features and principles described in the claims below.

Claims

1. A method comprising: receiving, by a wireless communication device, a signal from a wireless communication node; as well as An action is determined by the wireless communication device based on the signal.

2. The method according to claim 1, wherein The signal includes first information, and the first information includes at least one of the following: Wake-up message; User equipment UE or wireless communication device identifier ID information; Defined ID information; UE or wireless communication device group information; Defined group ID information; Cyclic redundancy check CRC information; Radio Network Temporary Identifier (RNTI) information; duration or offset information; Scrambled information; Physical downlink control channel PDCCH related information; Repeat information; Frequency hopping information; Discontinuous reception (DRX) related information; Channel state information reference signal CSI-RS related information; Tracking Reference Signal TRS availability information; Search space SS group switching information; PDCCH skip information; Transmit power control TPC command information; Sounding reference signal SRS request information; Preemption indication information; Channel occupancy time COT period indicator information; Available resource block RB set indicator information; SCell sleep indication information; or Information based on any of the foregoing.

3. The method according to claim 2, wherein: The signal includes at least one of the following: Preamble portion; or Payload section.

4. The method according to claim 3, wherein: The preamble part and the payload part include: The preamble portion is followed by an offset, and then by the payload portion.

5. The method according to claim 4, wherein The offset includes: a frequency offset between the preamble portion and the payload portion; or A time offset between the preamble portion and the payload portion.

6. The method according to claim 3, wherein: The preamble part and the payload part include: A first preamble portion is followed by the payload portion, which is then followed by a second preamble portion.

7. The method according to claim 6, wherein: The first preamble part, the payload part, and the second preamble part are continuous in the time domain; or a first time offset between the first preamble portion and the payload portion being the same as a second time offset between the second preamble portion and the payload portion; or The first time offset and the second time offset are predefined, or notified to the wireless communication device through signaling, or indicated to the wireless communication device through downlink control information DCI signaling.

8. The method according to claim 3, wherein: The preamble portion includes or indicates at least one of the following: the first information, or information based on the first information; the size of the payload portion; the format of the payload portion or the format of the signal; the location of the payload portion; a time offset or a frequency offset between the preamble portion and the payload portion; the presence of specific information in said payload portion; the presence of a particular indicator, bit or field in the payload portion; frequency hopping of the payload portion; repetition of said payload portion; Information based on a cell identifier ID; or Information related to the UE.

9. The method according to claim 1 or 4, wherein: The signal includes one of multiple formats, and the multiple formats include at least one of the following: Formats based on multiple preambles; Based on the format of the preamble portion; Based on the format of the preamble portion and the payload portion; a format based on the preamble portion and the fixed-size payload portion; a format based on the preamble portion and the payload portion of configurable or variable size; based on a format of the first preamble portion, the payload portion, and the second preamble portion; Based on the format of the payload portion; A format based on the payload portion and cyclic redundancy check (CRC) bits; a format of the payload portion based on the CRC bits and a fixed size; a format defined based on the CRC bits and the payload portion of configurable or variable size; Waveform-based formats; Format based on modulation scheme; Based on the format in which specific information exists; Format based on subcarrier spacing SCS; a format based on the number of repetitions of the signal or the preamble portion or the payload portion; a format based on the size of the payload portion or the signal; Format based on the number of user equipment UE or wireless communication devices; Based on the format of UE-related information; or Format based on RRC state.

10. The method according to claim 1 or 4, wherein: The signal includes one of a plurality of formats, and the wireless communication device determines to receive the one of the plurality of formats of the signal based on at least one of the following: Radio Resource Control RRC state; Received signaling, or One or more resources for transmitting the signal.

11. The method according to claim 10, wherein: The wireless communication device determines one of the multiple formats according to the RRC_CONNECTED state, where the format includes at least one of the following: Multiple preambles, Fixed data size, Configurable data size, Cyclic redundancy check CRC bits, UE identifier ID related information, UE group ID related information, or Physical downlink control channel PDCCH related information.

12. The method according to any one of claims 1 to 8, wherein: When the wireless communication device is in the RRC_CONNECTED state, the wireless communication device receives the signal; or The action is determined by the wireless communication device when in the RRC_CONNECTED state.

13. The method according to claim 12, wherein: The wireless communication device receives the signal in the RRC_CONNECTED state under at least one of the following circumstances: When parameters are configured via radio resource control (RRC), media access control element (MAC) or system information block (SIB) signaling; When one or more bits or fields exist or are indicated in the downlink control information DCI signaling; when a specific timer expires or before a specific timer expires; after a specific duration; After a specific physical downlink control channel PDCCH opportunity or several PDCCH opportunities; During the duration before the DRX start point; During the duration before the physical downlink control channel PDCCH opportunity; During wake-up radio on WUR-on; During DRX-off; During DRX on; or Based on predefined conditions.

14. The method according to claim 12, wherein: When the wireless communication device is in the RRC_CONNECTED state, the wireless communication device does not need to receive the signal in at least one of the following situations: When a specific downlink DL signal or channel is received, or when a specific uplink UL signal or channel is sent; When parameters are configured via Radio Resource Control (RRC), Media Access Control Element (MAC) or System Information Block (SIB) signaling; When one or more bits or fields exist or are indicated in the downlink control information DCI signaling; When DCI is received; When the physical downlink shared channel PDSCH is received; After sending the physical uplink control channel PUCCH; Based on the configuration of the wireless communication device; before or after a specific duration; before or after the expiration of a specified timer; or Before or after a specific physical downlink control channel PDCCH timing.

15. The method according to claim 1, wherein The signal configuration includes at least one of the following: Number of repetitions; cycle; duration; The resource does not exceed 1 time slot and / or is within the range of 5 MHz, 20 MHz or 50 MHz; or Frequency hopping.

16. The method according to claim 1 or 12, comprising determining, by the wireless communication device, the behavior based on the signal, the behavior comprising at least one of the following: The wireless communication device sends a physical random access channel PRACH or msgA; The wireless communication device sends a physical uplink control channel (PUCCH); The wireless communication device sends a physical uplink control channel (PUCCH) with HARQ-ACK; Receiving a PDCCH by the wireless communication device; monitoring, by the wireless communication device, a PDCCH opportunity; receiving, by the wireless communication device, a paging channel or transmission; monitoring, by the wireless communication device, a paging occasion; Activate DRX on period; Start the timer; or Activate the measurement, detection, reception or transmission of the reference signal RS.

17. The method according to claim 1 or 16, comprising: The action is determined by the wireless communication device based on the signal after or based on at least one of the following: time period or period; Number of PDCCH opportunities; A specific PDCCH opportunity; or The timer expires.

18. A method comprising: The wireless communication node sends a signal to the wireless communication device; The wireless communication device determines an action based on the signal.

19. A non-transitory computer-readable medium storing instructions, which, when executed by at least one processor, cause the at least one processor to perform the method according to any one of claims 1 to 18.

20. An apparatus comprising: At least one processor configured to execute the method of any one of claims 1 to 18.

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