Methods, apparatuses, and systems for scheduling in power save mode

Abstract

The present application relates to a communication method and a communication apparatus. An exemplary method includes: receiving a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries an indication, the indication being used to indicate at least one of: whether a downlink (DL) resource allocation is activated, whether an uplink (UL) resource allocation is activated, or whether to monitor a physical downlink control channel (PDCCH); and communicating with a second node according to the LP-WUS.

Description

Cross-reference to related applications

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 572,669, filed April 1, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application generally relates to wireless communication, and more particularly to a method, apparatus and system for scheduling in a power-saving mode. Background Technology

[0003] Wireless communication systems such as fourth-generation (4G) systems (e.g., long-term evolution (LTE) systems) and fifth-generation (5G) systems (e.g., new radio (NR) systems) have been deployed to provide various types of applications, such as messaging, voice, video, and other data. Summary of the Invention

[0004] One or more implementations of this application provide a communication method and a communication apparatus. The techniques described in this application can improve the performance of power-saving mode operation.

[0005] According to a first aspect, a method is provided. The method is performed at a first node (e.g., a UE). The method includes: receiving a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication for indicating at least one of: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether a physical downlink control channel (PDCCH) is monitored; and communicating with a second node according to the LP-WUS.

[0006] In conjunction with the first aspect, in some implementations, at least one of the following is pre-configured: a first time offset associated with the DL resource allocation, a duration associated with the DL resource allocation, or a second time offset associated with the UL resource allocation.

[0007] In conjunction with the first aspect, in some implementations, at least one of the following is pre-configured: resource allocation of the PDCCH, PDCCH timing of the PDCCH, indication of the presence of the second-level DCI, parameter set information of the DL resource allocation, parameter set information of the UL resource allocation, parameter set information of the PDCCH, or alignment point.

[0008] In conjunction with the first aspect, in some implementations, the number of bits of the first indication carried by the LP-WUS is 3.

[0009] In conjunction with the first aspect, in some implementations, the LP-WUS carries a second indication for indicating at least one of the DL resource allocation or the UL resource allocation.

[0010] In conjunction with the first aspect, in some implementations, the second indication includes at least one of an index representing the DL resource allocation and an index representing the UL resource allocation, wherein the DL resource allocation belongs to a set of pre-configured DL resource allocations and the UL resource allocation belongs to a set of pre-configured UL resource allocations.

[0011] In conjunction with the first aspect, in some implementations, the set of pre-configured DL resources or the set of pre-configured UL resources are indicated in cell common control signaling, group common control signaling, or UE-specific control signaling.

[0012] In conjunction with the first aspect, in some implementations, the LP-WUS carries a third indication for indicating at least one of the following: trigger information using the main radio (MR), power control information, UL timing advance information, or monitoring skip information.

[0013] In conjunction with the first aspect, in some implementations, the monitoring skip information can be PDCCH monitoring skip information and / or LP-WUS monitoring skip information, used to indicate skipping the monitoring of LP-WUS and / or PDCCH.

[0014] According to a second aspect, a method is provided. The method is performed at a first node (e.g., a base station). The method includes sending a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication for indicating at least one of the following: whether downlink (DL) resource allocation is active, whether uplink (UL) resource allocation is active, or whether a physical downlink control channel (PDCCH) is being monitored; and communicating with a second node according to the LP-WUS.

[0015] In conjunction with the second aspect, in some implementations, at least one of the following is pre-configured: a first time offset associated with the DL resource allocation, a duration associated with the DL resource allocation, or a second time offset associated with the UL resource allocation.

[0016] In conjunction with the second aspect, in some implementations, at least one of the following is pre-configured: the resource allocation of the PDCCH, the PDCCH timing of the PDCCH, an indication of the existence of the second-level DCI, the parameter set information of the DL resource allocation, the parameter set information of the UL resource allocation, the parameter set information of the PDCCH, or the alignment point.

[0017] In conjunction with the second aspect, in some implementations, the number of bits of the first indication carried by the LP-WUS is 3.

[0018] In conjunction with the second aspect, in some implementations, the LP-WUS carries a second indication for indicating at least one of the DL resource allocation or the UL resource allocation.

[0019] In conjunction with the second aspect, in some implementations, the second indication includes at least one of an index representing the DL resource allocation and an index representing the UL resource allocation, wherein the DL resource allocation belongs to a set of pre-configured DL resource allocations and the UL resource allocation belongs to a set of pre-configured UL resource allocations.

[0020] In conjunction with the second aspect, in some implementations, the set of pre-configured DL resources or the set of pre-configured UL resources are indicated in cell common control signaling, group common control signaling, or UE-specific control signaling.

[0021] In conjunction with the second aspect, in some implementations, the LP-WUS carries another indication for indicating at least one of the following: trigger information using the main radio (MR), power control information, UL timing advance information, or monitoring skip information.

[0022] In conjunction with the second aspect, in some implementations, the monitoring skip information can be PDCCH monitoring skip information and / or LP-WUS monitoring skip information, used to instruct the second UE to skip monitoring of LP-WUS and / or PDCCH.

[0023] According to a third aspect, a communication device is provided. The communication device is used to perform the method according to the first aspect or one or more implementations of the first aspect, or the second aspect or one or more implementations of the second aspect.

[0024] In conjunction with the third aspect, in some implementations, the communication device includes: a transceiver module, configured to: receive a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication being configured to indicate at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is monitored; and communicate with a second node according to the LP-WUS.

[0025] In conjunction with the third aspect, in some implementations, the communication device includes: a transceiver module, configured to: transmit a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication being configured to indicate at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is monitored; and communicate with a second node according to the LP-WUS.

[0026] In conjunction with the third aspect, in some implementations, the communication device includes one or more processors and interface circuitry. The interface circuitry is used to receive a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication indicating at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is being monitored; and to communicate with a second node according to the LP-WUS.

[0027] In conjunction with the third aspect, in some implementations, the communication device includes one or more processors and interface circuitry. The interface circuitry is used to send a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication indicating at least one of the following: whether downlink (DL) resource allocation is active, whether uplink (UL) resource allocation is active, or whether the physical downlink control channel (PDCCH) is being monitored; and to communicate with a second node according to the LP-WUS.

[0028] According to a fourth aspect, an apparatus is provided. The apparatus includes one or more processors and one or more memories. The one or more memories store instructions that, when executed by the one or more processors, cause the apparatus to perform the method according to the first aspect or one or more implementations of the first aspect, or the second aspect or one or more implementations of the second aspect.

[0029] According to a fifth aspect, a communication system is provided. The communication system includes: a first communication device for performing the method according to the first aspect or one or more implementations of the first aspect. The communication system further includes: a second communication device for performing the method according to the second aspect or one or more implementations of the second aspect.

[0030] According to a sixth aspect, a non-transitory computer-readable storage medium is provided. The non-transitory computer-readable storage medium stores instructions that, when executed by a device, cause the device to perform the method according to the first aspect or one or more implementations of the first aspect, or the second aspect or one or more implementations of the second aspect. Attached Figure Description

[0031] Figure 1 A schematic diagram of an exemplary communication system is shown;

[0032] Figure 2 Another exemplary communication system is shown;

[0033] Figure 3 An example of a device is shown that can wirelessly communicate with at least one of two devices in a communication system;

[0034] Figure 4 Examples of units or modules in a device or apparatus are shown;

[0035] Figure 5 An exemplary LP-WUS operation is shown;

[0036] Figure 6 Another exemplary LP-WUS operation is shown;

[0037] Figure 7 An example of power-saving mode operation is shown. Detailed Implementation

[0038] In wireless networks, it is desirable to achieve power-saving transmission for both the network and user equipment (UE). For power-efficient transmission, the UE and / or network can remain in a power-saving mode when there is no traffic, for example, in a sleep cycle, and can immediately start transmitting when traffic arrives. Power-saving mode can also be called power-saving state.

[0039] In a scheme that can be called a single transmission, the UE can wake up from power-saving mode during a sleep cycle based on discontinuous transmission (DTX) or discontinuous reception (DRX) configuration; use its low-power transceiver or low-power radio (LR) to listen for and receive a low-power wake-up signal (LP-WUS) from the base station; perform DL reception and / or UL transmission, where LP-WUS can provide resource scheduling or resource indication for DL ​​reception and / or UL transmission, and LP-WUS can also indicate how to continue PDCCH monitoring. However, since LP-WUS is transmitted in an energy-efficient manner by the low-power transceiver at the base station, the number of bits available for resource scheduling is limited.

[0040] In some cases, the time-frequency resource allocation for DL ​​and UL can be pre-configured. LP-WUS may include indication information indicating at least one of the following: whether downlink (DL) resource allocation is active, whether uplink (UL) resource allocation is active, or whether the physical downlink control channel (PDCCH) is being monitored. If LP-WUS indicates that DL / UL resource allocation is active by using pre-configured DL and / or UL resource allocation, the UE can use the pre-configured DL and / or UL resource allocation to perform DL reception or UL transmission. In some cases, a set of DL / UL resources can be pre-configured, and LP-WUS may include an indication indicating a specific DL / UL resource in the pre-configured set. The UE can determine whether to monitor the PDCCH based on the indication in LP-WUS. By using pre-configured information, the number of information bits in LP-WUS can be reduced, and power used for transmitting or receiving LP-WUS can be saved. Details of one or more implementations of the subject matter of this disclosure are set forth in the accompanying drawings and the following description. Other features, aspects, and advantages of the subject matter will be apparent from the detailed description, the drawings, and the claims.

[0041] Figure 1 A schematic diagram of an exemplary communication system 100 is shown. The communication system 100 (which may be a wireless system) includes a radio access network (RAN) 120. The RAN 120 may be a next-generation (e.g., sixth-generation, 6G, or later) RAN, or a traditional (e.g., 5G, 4G, 3G, or 2nd-generation, 2G) RAN. In the RAN 120, one or more electronic devices (EDs) 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j (generally referred to as 110) may interconnect with each other or be connected to one or more network nodes (170a, 170b, generally referred to as 170). A core network 130 may be part of the communication system and may depend on or be independent of the radio access technology used in the communication system 100. The communication system 100 may also include a public switched telephone network (PSTN) 140, the Internet 150, and other networks 160.

[0042] Typically, communication system 100 enables multiple wireless or wired components to transmit data and other content. Communication system 100 can provide voice, data, video, and / or text content through broadcasting, multicasting, unicasting, etc. Furthermore, communication system 100 can provide a wide range of communication services and applications (e.g., earth monitoring, remote sensing, passive sensing and positioning, navigation and tracking, autonomous delivery and mobility, etc.). These services and / or applications can be mobile broadband (MBB) services, ultra-reliable low-latency communication (URLLC) services, or machine-type communication (MTC) services.

[0043] The communication system 100 can operate by sharing resources such as carrier spectrum bandwidth among its constituent components.

[0044] Figure 2 Another example of communication system 100 is shown in more detail. Communication system 100 may include terrestrial communication systems and / or non-terrestrial communication systems. Communication system 100 can provide high availability and robustness through the joint operation of terrestrial and non-terrestrial communication systems. For example, integrating a non-terrestrial communication system (or components thereof) into a terrestrial communication system can create a heterogeneous network that can be viewed as comprising multiple layers. Heterogeneous networks can achieve better overall performance through efficient multi-link joint operation between terrestrial and non-terrestrial networks, more flexible functional sharing, and faster physical layer link switching.

[0045] Terrestrial communication systems and non-terrestrial communication systems can be considered as subsystems of a communication system.

[0046] and Figure 1 The example shown is similar, in Figure 2In the example shown, communication system 100 may include ED 110a, 110b, 110c, 110d (generally referred to as ED 110) and RAN 120a, 120b. Furthermore, communication system 100 may also include a non-terrestrial communication network 120c. Communication system 100 may also include one or more of a core network 130, a public switched telephone network (PSTN) 140, the Internet 150, and other networks 160. RAN 120a, 120b include corresponding RAN nodes such as base stations (BS) 170a, 170b, which are generally referred to as terrestrial transmit and receive points (T-TRP) 170a, 170b. In one implementation, non-terrestrial communication network 120c includes RAN nodes such as access nodes (or base stations) 172, which are generally referred to as non-terrestrial transmit and receive points (NT-TRP) 172. As can be inferred from the similarities in the reference numerals, the non-terrestrial communication network 120c can be considered a radio access network, and its operation shares similarities with RANs 120a and 120b. In another implementation, the non-terrestrial communication network 120c may include at least one non-terrestrial network (NTN) device and at least one corresponding terrestrial network device, wherein the at least one NTN device operates as a transport layer device, and the at least one corresponding terrestrial network device operates as a RAN node, which communicates with the ED through the NTN device. Alternatively, an NTN gateway (i.e., referred to as a terrestrial network device) may also exist on the ground, also acting as a transport layer device and communicating with the NTN device, and the RAN node communicates with the ED through both the NTN device and the NTN gateway. In some implementations, the NTN gateway and the RAN node may reside in the same device.

[0047] Alternatively or additionally, any ED 110 can be used to connect, access, or communicate with any T-TRP 170a, 170b, and NT-TRP 172, the Internet 150, the core network 130, the PSTN 140, other networks 160, or any combination thereof. In some examples, ED 110a can perform uplink (UL) and / or downlink (DL) transmissions with T-TRP 170a via terrestrial air interface 190a. In some examples, ED 110a, 110b, 110c, and 110d can also communicate directly with each other via one or more sidelink (SL) air interfaces 190b. In some examples, ED 110d can perform uplink and / or downlink transmissions with NT-TRP 172 via non-terrestrial air interface 190c.

[0048] Air interfaces 190a and 190b can use similar communication technologies, such as any suitable wireless access technology. For example, communication system 100 can implement one or more channel access methods in air interfaces 190a and 190b, such as code division multiple access (CDMA), space division multiple access (SDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or single-carrier FDMA (SC-FDMA; also known as discrete Fourier transform spread OFDMA (DFT-s-OFDMA)). Air interfaces 190a and 190b can employ other higher-dimensional signal spaces, which may involve combinations of orthogonal and / or non-orthogonal dimensions.

[0049] The non-terrestrial air interface 190c enables communication between the ED 110d and one or more NT-TRP 172s via a wireless link or simply via a link. For some examples, the link is a dedicated connection for unicast transmission, a connection for broadcast transmission, or a connection between a group of ED 110s and one or more NT-TRP 172s for multicast transmission.

[0050] RANs 120a and 120b communicate with core network 130 to provide various services, such as voice, data, and other services, to EDs 110a, 110b, and 110c. RANs 120a and 120b and / or core network 130 may communicate directly or indirectly with one or more other RANs (not shown), which may or may not be directly served by core network 130, and may or may not use the same radio access technology as RANs 120a, RAN 120b, or both. Core network 130 may also serve as a gateway access between (i) RANs 120a and 120b, or EDs 110a, 110b, and 110c, or both, and (ii) other networks (e.g., PSTN 140, Internet 150, and other networks 160). Additionally, some or all of EDs 110a, 110b, and 110c may include functionality for communicating with different wireless networks via different radio links using different radio technologies and / or protocols. ED 110a, 110b, and 110c can communicate with service providers or exchanges (not shown) via wired communication channels and with the Internet 150, rather than via wireless communication (or via wired communication in addition to wireless communication). PSTN 140 may include a circuit-switched telephone network for providing plain old telephone service (POTS). The Internet 150 may include computer networks and subnets (internal networks) or both, and employ protocols such as Internet Protocol (IP), Transmission Control Protocol (TCP), and User Datagram Protocol (UDP). ED 110a, 110b, and 110c may be multimode devices capable of operating under various wireless access technologies and integrate multiple transceivers required to support such technologies.

[0051] Furthermore, the communication system 100 may include a sensing agent (not shown) to manage sensing data from ED 110 and / or T-TRP 170 and / or NT-TRP 172. In one implementation, the sensing agent is located within T-TRP 170 and / or NT-TRP 172. In another implementation, the sensing agent is a separate node with an interface for communicating with core network 130 and / or RAN 120 (e.g., T-TRP 170 and / or NT-TRP 172).

[0052] Figure 3An example of a device 310 is shown, according to one embodiment, for wirelessly communicating with at least one of two devices (e.g., device 320a and device 320b, referred to as device 320) in a communication system (e.g., communication system 100). Device 310 may be a UE (e.g., Figure 3 (ED 110 in the text). Device 320a can be a terrestrial network device (e.g., such as ED 110). Figure 3 The T-TRP 170 shown), device 320b can be a non-terrestrial network device (e.g., such as...). Figure 3 (NT-TRP 172 shown). However, this is not necessary. For example, according to this disclosure, device 320a can be NT-TRP, device 320b can be T-TRP, and both devices 320a and 320b can be either T-TRP or NT-TRP. In the following description, ED 110 is described as an example of device 310, T-TRP 170 is described as an example of device 320a, and NT-TRP 172 is described as an example of device 320a. Although only one device 310, one device 320a, and one device 320b are described, it should be noted that the number of devices 310 (e.g., ED 110) can be one or more, and the number of devices 320a and / or 320b can be one or more. For example, an ED 110 can be served by only one T-TRP 170 (or one NT-TRP 172), by more than one T-TRP 170, by more than one NT-TRP 172, or by one or more T-TRP 170 and one or more NT-TRP 172.

[0053] The ED 110 is used to connect people, objects, and machines. It can be widely used in various scenarios, including, for example, cellular communication, device-to-device (D2D), vehicle-to-everything (V2X), peer-to-peer (P2P), machine-to-machine (M2M), MTC, Internet of Things (IoT), virtual reality (VR), augmented reality (AR), mixed reality (MR), metaverse, digital twins, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery and mobility, etc.

[0054] Each ED 110 represents any suitable end-user equipment used for wireless operation and may include (or be referred to as, but not limited to) devices such as: user equipment / terminal device (UE), wireless transmit / receive unit (WTRU), mobile station, fixed or mobile subscriber unit, cellular phone, station (STA), MTC device, personal digital assistant (PDA), smartphone, laptop, computer, tablet, wireless sensor, consumer electronics device, smart book, vehicle, car, truck, bus, train, or IoT device, wearable device (e.g., watch, glasses, head-mounted device, etc.), industrial equipment, or devices in or including the above-mentioned equipment (e.g., communication module, modem, or chip), etc. Next-generation ED 110 may be referred to using other terms. Base stations 170a and 170b are T-TRPs and will be referred to as T-TRP 170 below. Similarly, Figure 3 As shown, the non-terrestrial (NT) device will be referred to as NT-TRP172 below. Each ED 110 connected to T-TRP 170 and / or NT-TRP 172 can be dynamically or semi-statically started (i.e., established, activated, or enabled), shut down (i.e., released, deactivated, or disabled), and / or configured in response to one or more of connectivity availability and connectivity necessity.

[0055] like Figure 3As shown, ED 110 includes at least one processor 210. Only one processor 210 is shown in the figure to avoid congestion. ED 110 may also include a transmitter 201 and a receiver 203 coupled to one or more antennas 204. Only one antenna 204 is shown in the figure to avoid congestion. Alternatively, one, some, or all of the antennas 204 may be panels. The transmitter 201 and receiver 203 may, for example, be integrated as a transceiver. The transceiver is used to modulate data or other content for transmission by at least one antenna 204 or a network interface controller (NIC). The transceiver is also used to demodulate data or other content received through at least one antenna 204. Each transceiver includes any suitable structure for generating signals for wireless or wired transmission and / or processing signals received wirelessly or wiredly. Each antenna 204 includes any suitable structure for transmitting and / or receiving wireless or wired signals. ED 110 may include at least one memory 208. For simplicity, only transmitter 201, receiver 203, processor 210, memory 208 and antenna 204 are shown, but ED 110 may include one or more other components.

[0056] Memory 208 stores instructions. Memory 208 may also store data used, generated, or acquired by ED 110. For example, memory 208 may store software instructions or modules executable by one or more processing units (e.g., processor 210) for implementing some or all of the functions and / or embodiments described herein. Each memory 208 includes any suitable one or more volatile and / or non-volatile storage and retrieval devices. Any suitable type of memory can be used, such as random access memory (RAM), read-only memory (ROM), hard disk, optical disk, subscriber identity module (SIM) card, memory stick, secure digital (SD) memory card, and on-processor cache, etc.

[0057] ED 110 also includes one or more input / output devices (not shown) or interfaces (e.g., connected to...). Figure 1 (Wired interface of Internet 150 in the network). Input / output devices or interfaces support interaction with users or other devices in the network. Each input / output device or interface includes any suitable structure for providing or receiving information from the user and / or for network interface communication. Suitable structures include, for example, speakers, microphones, numeric keypads, keyboards, displays, touch screens, etc.

[0058] Processor 210 performs (or controls ED 110 to perform) operations described herein as being performed by ED 110. As shown below and elsewhere in this disclosure, for example, processor 210 performs or controls ED 110 to perform: receiving a transport block (TB), using resources for decoding one TB of the received TB, releasing resources for decoding another TB of the received TB, and / or receiving configuration information for configuring resources. Specifically, operations may include: operations related to preparing to transmit uplink transmissions to NT-TRP 172 and / or T-TRP 170; operations related to processing downlink transmissions received from NT-TRP 172 and / or T-TRP 170; and operations related to processing sidelink transmissions to and from another ED 110. Processing operations related to preparing to transmit uplink transmissions may include operations such as encoding, modulation, transmit beamforming, and generating symbols for transmission. Processing operations related to processing downlink transmissions may include operations such as receive beamforming, demodulation, and decoding of received symbols. Processing operations related to downlink transmissions may include transmit / receive beamforming, modulation / demodulation, and symbol encoding / decoding. According to embodiments, downlink transmissions may be received by receiver 203 (possibly using receive beamforming), and processor 210 may extract signaling from the downlink transmissions (e.g., by detecting and / or decoding signaling). Examples of signaling may be reference signals transmitted by NT-TRP 172 and / or T-TRP 170. In some embodiments, processor 210 implements transmit beamforming and / or receive beamforming based on beam direction indications (e.g., beamangle information (BAI)) received from T-TRP 170. In some embodiments, processor 210 may perform operations related to network access (e.g., initial access) and / or downlink synchronization, such as operations related to detecting synchronization sequences, decoding, and acquiring system information. In some embodiments, processor 210 may perform channel estimation (e.g., using reference signals received from NT-TRP 172 and / or T-TRP 170).

[0059] Although not shown, processor 210 may form part of transmitter 201 and / or receiver 203. Although not shown, memory 208 may form part of processor 210.

[0060] The processing components of processor 210, transmitter 201, and receiver 203 may each be implemented using one or more processors, either the same or different, for executing instructions stored in memory (e.g., memory 208). Alternatively, some or all of the processing components of processor 210, transmitter 201, and receiver 203 may each be implemented using dedicated circuitry (e.g., a programmable field-programmable gate array (FPGA), application-specific integrated circuit (ASIC), or hardware accelerators such as graphics processing units (GPUs) or artificial intelligence (AI) accelerators).

[0061] In some implementations, ED 110 may be a device (also referred to as a component) including at least one processor 210 and an interface or at least one pin, such as a communication module, modem, chip, or chipset. In this scenario, transmitter 201 and receiver 203 may be replaced by an interface or at least one pin, wherein the interface or at least one pin is used to connect the device (e.g., a chip) and other devices (e.g., a chip, memory, or bus). Therefore, sending information to NT-TRP 172 and / or T-TRP 170 and / or another ED 110 can be referred to as sending information to an interface or at least one pin, or as sending information to NT-TRP 172 and / or T-TRP 170 and / or another ED 110 via an interface or at least one pin, while receiving information from NT-TRP 172 and / or T-TRP 170 and / or another ED 110 can be referred to as receiving information from an interface or at least one pin, or as receiving information from NT-TRP 172 and / or T-TRP 170 and / or another ED 110 via an interface or at least one pin. This information may include control signaling and / or data.

[0062] like Figure 3As shown, the T-TRP 170 includes at least one processor 260. Only one processor 260 is shown in the figure to avoid congestion. The T-TRP 170 may also include at least one transmitter 252 and at least one receiver 254 coupled to one or more antennas 256. Only one antenna 256 is shown in the figure to avoid congestion. Alternatively, one, some, or all of the antennas 256 may be panels. The transmitter 252 and receiver 254 may be integrated as a transceiver. The T-TRP 170 may also include at least one memory 258. The T-TRP 170 may also include a scheduler 253. For simplicity, only the transmitter 252, receiver 254, processor 260, memory 258, antenna 256, and scheduler 253 are shown, but the T-TRP may include one or more other components.

[0063] In some implementations, the T-TRP 170 can have other names, such as base station, basetransceiver station (BTS), wireless base station, network node, network device, network-side device, transmit / receive node, NodeB, evolved NodeB (eNodeB or eNB), Home eNodeB, next-generation NodeB (gNB), transmission point (TP), site controller, access point (AP), wireless router, relay station, ground node, ground network device, ground base station, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The T-TRP 170 can be a macro base station (BS), pico BS, relay node, host node, or a combination thereof. T-TRP 170 may refer to the aforementioned device or a component within the aforementioned device (e.g., a communication module, modem, or chip).

[0064] In some embodiments, the portions of T-TRP 170 may be distributed. For example, some modules of T-TRP 170 may be located remotely from the device housing the antenna 256 for T-TRP 170 and may be coupled to the device housing the antenna 256 via a communication link (not shown) sometimes referred to as a fronthaul (e.g., a common public radio interface (CPRI)). Therefore, in some embodiments, the term T-TRP 170 may also refer to network-side modules that perform processing operations such as ED 110 location determination, resource allocation (scheduling), message generation, and encoding / decoding, which are not necessarily part of the device housing the antenna 256 of T-TRP 170. Modules may also be coupled to other T-TRPs. In some embodiments, T-TRP 170 may actually be multiple T-TRPs that operate together, for example, by using coordinated multicast transmissions to serve ED 110.

[0065] The operations performed by processor 260 include those related to: preparing to transmit downlink transmissions to ED 110, processing uplink transmissions received from ED 110, preparing to transmit return transmissions to T-TRP 170 and / or NT-TRP 172, and processing transmissions received from T-TRP 170 and / or NT-TRP 172 via return. Processing operations related to preparing to transmit downlink or return transmissions may include encoding, modulation, precoding (e.g., multiple-input multiple-output (MIMO) precoding), transmit beamforming, and generating symbols for transmission. Processing operations related to processing transmissions received in the uplink or return may include receive beamforming, demodulating received symbols, and decoding received symbols. Processor 260 may also perform operations related to network access (e.g., initial access) and / or downlink synchronization, such as generating the contents of a synchronization signal block (SSB) and generating system information. In some embodiments, processor 260 also generates a beam direction indication (e.g., BAI), which can be scheduled by scheduler 253 for transmission. Processor 260 performs other network-side processing operations described herein, such as determining the location of ED 110, determining the deployment location of NT-TRP 172, etc. In some embodiments, processor 260 may generate signaling, for example, to configure one or more parameters of ED 110 and / or one or more parameters of NT-TRP 172. Any signaling generated by processor 260 is transmitted by transmitter 252.

[0066] Scheduler 253 may be coupled to or integrated into processor 260. Scheduler 253 may be included within T-TRP 170 or may operate separately from T-TRP. Scheduler 253 may schedule uplink, downlink, lateral link, and / or backlink transmissions, including issuing scheduling authorizations and / or configuring schedule-free (e.g., "configuration authorization") resources.

[0067] Memory 258 is used to store information and optional data. Memory 258 stores instructions and data used, generated, or acquired by T-TRP 170. For example, memory 258 may store software instructions or modules executed by processor 260, which are used to implement some or all of the functions and / or embodiments described herein.

[0068] Although not shown, processor 260 may form part of transmitter 252 and / or receiver 254. Furthermore, although not shown, processor 260 may implement scheduler 253. Although not shown, memory 258 may form part of processor 260.

[0069] The processing components of processor 260, scheduler 253, transmitter 252, and receiver 254 may each be implemented using one or more processors, either the same or different, for executing instructions stored in memory (e.g., memory 258). Alternatively, some or all of the processing components of processor 260, scheduler 253, transmitter 252, and receiver 254 may be implemented using dedicated circuitry (e.g., a programmable FPGA, hardware accelerator (e.g., GPU or AI accelerator), or ASIC).

[0070] When T-TRP 170 is a device (also referred to as a component, such as a communication module, modem, chip, or chipset in a device), the T-TRP includes at least one processor and an interface or at least one pin. In this scenario, transmitter 252 and receiver 254 can be replaced by an interface or at least one pin, wherein the interface or at least one pin is used to connect the device (e.g., a chip) and other devices (e.g., chips, memory, or buses). Therefore, sending information to NT-TRP 172 and / or T-TRP 170 and / or ED 110 can be referred to as sending information to an interface or at least one pin, while receiving information from NT-TRP 172 and / or T-TRP 170 and / or ED 110 can be referred to as receiving information from an interface or at least one pin. This information may include control signaling and / or data.

[0071] Although the NT-TRP 172 is shown as an example of a drone only, it can be implemented in any suitable non-terrestrial form, such as satellites and high-altitude platforms including international mobile telecommunications base stations and unmanned aerial vehicles. Furthermore, in some implementations, the NT-TRP 172 may have other names, such as non-terrestrial node, non-terrestrial network device, or non-terrestrial base station.

[0072] like Figure 3 As shown, the T-TRP 170 may also include at least one transmitter 252 and at least one receiver 254 coupled to one or more antennas 256. Only one antenna 256 is shown in the figure to avoid congestion. Alternatively, one, some, or all of the antennas 256 may be panels. The transmitter 252 and receiver 254 may be integrated as a transceiver. The T-TRP 170 may also include at least one memory 258. The T-TRP 170 may also include a scheduler 253. For simplicity, only the transmitter 252, receiver 254, processor 260, memory 258, antenna 256, and scheduler 253 are shown, but the T-TRP may include one or more other components.

[0073] like Figure 3 As shown, the NT-TRP 172 includes at least one processor 276. Only one processor 276 is shown in the figure to avoid congestion. The NT-TRP 172 may include a transmitter 272 and a receiver 274 coupled to one or more antennas 280. Only one antenna 280 is shown in the figure to avoid congestion. Alternatively, one, part, or all of the antennas may be panels. The transmitter 272 and receiver 274 may be integrated as a transceiver. The NT-TRP 172 may also include at least one memory 278. The NT-TRP 172 may also include a scheduler 253. For simplicity, only the transmitter 272, receiver 274, processor 276, memory 278, and antenna 280 are shown, but the NT-TRP may include one or more other components.

[0074] NT-TRP 172 includes a processor 276 for performing operations related to: preparing to transmit downlink transmissions to ED 110, processing uplink transmissions received from ED 110, preparing to transmit backhaul transmissions to T-TRP 170 and / or another NT-TRP 172, and processing transmissions received from T-TRP 170 and / or another NT-TRP 172 via backhaul. Processing operations related to preparing to transmit downlink or backhaul transmissions may include operations such as encoding, modulation, precoding (e.g., MIMO precoding), transmit beamforming, and generating symbols for transmission. Processing operations related to processing transmissions received in the uplink or backhaul may include operations such as receive beamforming, demodulating received symbols, and decoding received symbols. In some embodiments, processor 276 performs transmit beamforming and / or receive beamforming based on beam direction information (e.g., BAI) received from T-TRP 170. In some embodiments, processor 276 may generate signaling, for example, to configure one or more parameters of ED 110. In some embodiments, NT-TRP 172 implements physical layer processing but does not implement higher-layer functions, such as those in the medium access control (MAC) layer or radio link control (RLC) layer. Since this is only an example, more generally, NT-TRP 172 may implement higher-layer functions in addition to physical layer processing.

[0075] Memory 278 is used to store information and optional data. Memory 258 stores instructions and data used, generated, or acquired by NT-TRP 172. For example, memory 278 may store software instructions or modules executed by processor 276 for implementing some or all of the functions and / or embodiments described herein.

[0076] Although not shown, processor 276 may form part of transmitter 272 and / or receiver 274. Although not shown, memory 278 may form part of processor 276.

[0077] The processing components of processor 276, transmitter 272, and receiver 274 can each be implemented using one or more processors, either the same or different, to execute instructions stored in memory (e.g., memory 278). Alternatively, some or all of the processing components of processor 276, transmitter 272, and receiver 274 can be implemented using dedicated circuitry (e.g., a programmable FPGA, hardware accelerator (e.g., GPU or AI accelerator), or ASIC). In some embodiments, NT-TRP 172 can actually be multiple NT-TRPs that operate together, for example, through coordinated multicast transmissions, to serve ED 110.

[0078] When NT-TRP 172 is a device within a device (e.g., a communication module, modem, chip, or chipset), the NT-TRP includes at least one processor and an interface or at least one pin. In this scenario, transmitter 272 and receiver 257 can be replaced by an interface or at least one pin, wherein the interface or at least one pin is used to connect the device (e.g., a chip) and other devices (e.g., a chip, memory, or bus). Therefore, sending information to T-TRP 170 and / or another NT-TRP 172 and / or ED 110 can be referred to as sending information to an interface or at least one pin, while receiving information from T-TRP 170 and / or another NT-TRP 172 and / or ED 110 can be referred to as receiving information from an interface or at least one pin. This information may include control signaling and / or data.

[0079] Note that the term "transmit / receive point (TRP)" as used herein can refer to either a T-TRP or an NT-TRP. Alternatively, a T-TRP can be referred to as a terrestrial network TRP ("TN TRP"), and an NT-TRP can be referred to as a non-terrestrial network TRP ("NTN TRP"). T-TRP 170, NT-TRP 172, and / or ED 110 may include other components, but these components are omitted for clarity.

[0080] Note that for simplicity, the term "signaling" used in this document can also be referred to as control signaling, control message, control information, or message. Signaling between a BS (e.g., network node 170) and a terminal or sensing device (e.g., ED 110), or between different terminals or sensing devices (e.g., ED 110i and ED 110j), can be carried in physical layer signaling (also known as dynamic signaling), which is transmitted in the physical layer control channel. For the downlink, physical layer signaling can be referred to as downlink control information (DCI) transmitted in the physical downlink control channel (PDCCH). For the uplink, physical layer signaling can be referred to as uplink control information (UCI) transmitted in the physical uplink control channel (PUCCH). For sidelinks, signaling between different terminals or sensing devices (e.g., ED 110i and ED 110j) can be referred to as sidelink control information (SCI) transmitted in the physical sidelink control channel (PSCCH). This signaling can be carried in higher-layer (e.g., above the physical layer) signaling, which is transmitted in the physical layer data channel. For example, downlink signaling is transmitted in the physical downlink shared channel (PDSCH), uplink signaling in the physical uplink shared channel (PUSCH), and sidelink signaling in the physical sidelink shared channel (PSSCH). Higher-layer signaling can also be referred to as static or semi-static signaling. Higher-layer signaling can also be radio resource control (RRC) protocol signaling or media access control-control element (MAC-CE) signaling. Signaling can be included in a combination of physical layer signaling and higher layer signaling.

[0081] Note that in this disclosure, "information" can be carried in a single message or in more than one single message when it is different from "message".

[0082] according to Figure 4 One or more steps of the method provided in this disclosure may be performed by the corresponding unit or module. Figure 4 Examples of units or modules in devices or apparatuses such as ED 110, T-TRP 170, or NT-TRP 172 are shown. For example, a signal may be transmitted by a transmitting unit or transmitting module. A signal may be received by a receiving unit or receiving module. A signal may be processed by a processing unit or processing module. Other steps may be performed by an artificial intelligence (AI) module or a machine learning (ML) module. The corresponding units or modules may be implemented using hardware, one or more components or devices executing software, or a combination thereof. For example, one or more of the units or modules may be circuits, such as integrated circuits. Examples of integrated circuits include programmable FPGAs, GPUs, or ASICs. For example, one or more of the units or modules may be logic, such as logical functions performed by a circuit, a portion of an integrated circuit, or software instructions executed by a processor. It should be understood that if a module is implemented, for example, by a processor using software execution, the module can be retrieved by the processor, wholly or partially, individually or collectively, for processing, in one or more instances, and the module itself may include instructions for further deployment and instantiation.

[0083] The sending and receiving modules can be implemented as separate modules or in a combined sending and receiving module.

[0084] Other details regarding ED 110, T-TRP 170, and NT-TRP 172 are known to those skilled in the art. Therefore, these details are omitted herein.

[0085] This disclosure is directed to devices such as UEs, IoT devices, and automobiles. The types of network scenarios envisioned may include terrestrial TRPs (e.g., base stations) and / or non-terrestrial TRPs (e.g., drones, balloons, high-altitude platform stations (HAPS), satellites, and any such devices supporting wireless access technologies such as 5G NR, future 6G, or other technologies).

[0086] For illustrative purposes, specific exemplary embodiments will now be explained in more detail with reference to the accompanying drawings and the above-described system, ED, and TRP.

[0087] The embodiments described herein provide sufficient information to practice the claimed subject matter and illustrate methods for practicing such subject matter. Those skilled in the art will understand the concepts of the claimed subject matter after reading the following description with reference to the accompanying drawings, and will recognize that the application of these concepts is not specifically mentioned herein. It should be understood that these concepts and applications are within the scope of this disclosure and the appended claims.

[0088] In wireless networks, power-efficient transmission for both the network and user equipment (UE) is desirable. For power-efficient transmission, the UE and / or network can remain in a power-saving mode when there is no traffic, for example, in a sleep cycle, and can immediately begin transmission when traffic arrives. In a scheme that can be called a single transmission, the UE can wake up from power-saving mode during a sleep cycle based on discontinuous transmission (DTX) or discontinuous reception (DRX) configuration; use its low-power transceiver or low-power radio (LR) to listen for and receive a low-power wake-up signal (LP-WUS) from the base station; perform DL reception and / or UL transmission, where LP-WUS can provide resource scheduling or resource indication for DL ​​reception and / or UL transmission, and LP-WUS can also indicate how to continue PDCCH monitoring. However, since LP-WUS is transmitted in an energy-efficient manner by the low-power transceiver at the base station, the number of bits available for resource scheduling is limited.

[0089] Figure 5 An exemplary LP-WUS operation 500 is shown. For example... Figure 5 As shown, the UE can sleep in power-saving mode. At symbol 502, the UE can wake up to monitor LP-WUS signaling from the BS, where LP-WUS signaling can indicate any service scheduling and whether the UE should switch from LR to regular transceiver or main radio (MR). The UE can detect the LP-WUS signaling and take appropriate action based on the indications in the LP-WUS signaling. The action can be DL reception and / or UL transmission. Figure 5 In the example shown, DL services can be transmitted over one or more symbols starting from symbol 504, while UL services can be transmitted over one or more symbols starting from symbol 506. Since the UE typically performs a single data reception or transmission according to the LP-WUS instruction, the scheme can be referred to as a single transmission. In some cases, the PDCCH can, for example, in... Figure 5 The symbol 512 shown indicates additional DL reception and / or UL transmission. Figure 5In the example shown, additional DL reception and / or UL transmission may occur in one or more symbols starting from symbol 514.

[0090] For a given parameter set and cyclic prefix (CP) length, slot-based scheduling has a fixed number of scheduled symbols. For example, the scheduling granularity of slot-based scheduling is 14 symbols for a normal cyclic prefix (NCP) and 12 symbols for an extended cyclic prefix (ECP). The number of symbols in a slot is fixed for a given parameter set and cyclic prefix (CP) length, regardless of application / service type, use case scenario, and / or parameter set options. The slot duration varies with different parameter sets, which may require a significant number of bits for resource scheduling of service transmissions.

[0091] The scheduling operations discussed above are not flexible. For example, LP-WUS in power-saving operations may use a limited number of bits of information for scheduling indication. Therefore, flexible scheduling operations may not be suitable for scheduling using LP-WUS indications. Thus, the LP-WUS signaling mechanism may need to be designed in a simplified manner to streamline the details of indication regarding resource scheduling.

[0092] In some implementations, the simplified scheduling scheme indicated by LP-WUS can be used to improve power-saving operation.

[0093] Figure 6 Another exemplary LP-WUS operation 600 is shown. For example... Figure 6 As shown, the LP-WUS indicator can indicate the following information:

[0094] S_offset: Time offset, representing the duration between the reference time and the start position of the DL time resource allocation. The reference time can be based on a time reference point (e.g., time reference point 660), the time of the LP-WUS transmission (e.g., symbol 502), or the timing of the PDCCH execution of DCI. Figure 6 In the example shown, S_offset 610 is the time offset between time reference point 660 and the starting point of the DL service at symbol 504.

[0095] L: Represents the duration of DL time resource allocation, such as the number of symbols relative to the parameter set. Figure 6 In the example shown, L 620 represents the length of the DL service starting at symbol 504.

[0096] T_offset: Time offset, representing the duration between the reference time and the start position of the UL time resource allocation. The reference time can be based on a time reference point (e.g., time reference point 660), the time of LP-WUS transmission (e.g., symbol 502), or the timing of the PDCCH execution of DCI. Additionally or alternatively, the reference time of T_offset can also be the end of the DL service allocation, which can be applied when the DL time resource allocation is scheduled. Figure 6 In the example shown, T_offset 630 is the time offset between time reference point 660 and the end point of the DL service.

[0097] In some cases, the LP-WUS indication can also indicate other information. For example, the LP-WUS indication can indicate the presence of a second-level DCI. In some cases, the LP-WUS can include limited information for indicating resource allocation for DL ​​and / or UL transmissions. Therefore, additional resource allocation information can be carried in the second-level DCI. Thus, by indicating the presence of a second-level DCI, the UE can determine whether to continue receiving the second-level DCI to receive additional resource allocation information.

[0098] In another example, the LP-WUS indication can indicate whether subsequent operations or actions are required after one or more single transmissions. An example of such an operation is whether to monitor the PDCCH timing. For instance, LP-WUS can indicate whether the UE needs to monitor the PDCCH at a subsequent PDCCH timing (e.g., at symbol 512). If the BS will send the PDCCH to the UE at symbol 512, the BS can use LP-WUS to indicate to the UE that the PDCCH timing should be monitored. If the BS will not send the PDCCH to the UE at symbol 512, the BS can use LP-WUS to indicate to the UE that the PDCCH timing should not be monitored, and the UE can enter sleep mode to conserve power.

[0099] In another example, the LP-WUS indication can specify whether to skip monitoring PDCCH timings within a certain period. In some cases, LP-WUS is sent during the configured PDCCH timings. The UE can be woken up at each configured PDCCH timing to determine if LP-WUS is present. In this example, the BS can use the LP-WUS indication to tell the UE that monitoring can be skipped for a duration, a number of DRX cycles, or a combination thereof. This allows the UE to enter sleep mode without being woken up during that duration, thus saving power.

[0100] In another example, the LP-WUS indication can instruct the UE (from LR) to switch to a regular transceiver or main radio (MR), or to return to sleep. In one possible implementation, the UE can sleep in a power-saving state and wake up to monitor the LP-WUS from the BS, where the LP-WUS can schedule traffic transmissions and instruct the UE to switch from LR to a regular transceiver or main radio (MR) for the following operations or actions.

[0101] In some cases, LP-WUS can carry Figure 6 Information not explicitly shown. For example, LP-WUS may carry information indicating the duration of UL time resource allocation (e.g., number of symbols), and optionally, may carry parameter set options, etc.

[0102] The UE can detect LP-WUS after waking from a sleep cycle and take corresponding actions based on LP-WUS signaling. To simplify LP-WUS signaling, the following operations can be used: The UE can receive signaling for configuration information, including parameter sets, time reference points, control resource sets (CORESET), and PDCCH timing; the UE can also receive configuration information for a set of time-frequency resource allocations for DL ​​and a set of time-frequency resource allocations for UL. Configuration can be received via static signaling or higher-level signaling such as RRC or MAC-CE, where each time-frequency resource allocation can be provided using a (unique) resource index; LP-WUS signaling can use one or more time-frequency resource (allocation) indices for DL ​​and / or UL transmission scheduling, thereby achieving reduced signaling overhead or efficient LP-WUS indication.

[0103] LP-WUS can use a reference time as its scheduling time reference. For example, the reference time can be configured based on a time reference point, which can be any of the following or based on any of the following: a frame, a subframe, a time slot, a predefined timestamped reference point, or / and a pre-configured timestamped reference point (e.g., an absolute time reference point, a relative time reference point, etc.). The reference time can be configured based on CORESET or PDCCH timing. Additionally or alternatively, CORESET allocation or PDCCH timing can be configured based on a time reference point, wherein CORESET allocation or PDCCH timing can be configured using any of the cell common configuration, group common configuration, or user equipment (UE) specific configuration. The configuration of CORESET allocation or PDCCH monitoring timing can be decoupled from or independent of the configuration of the low-power synchronization signal (LP-SS) used for DL ​​timing synchronization.

[0104] In some cases, a time reference point may also be referred to as an alignment point. An alignment point can be used to provide a time reference for LP-WUS operation discussed in this disclosure, or for other operations (e.g., normal or non-power-saving operation). An alignment point can be defined at the boundaries of frames, subframes, time slots, symbols, or at any other time (e.g., absolute time or relative time to the boundaries of frames, subframes, time slots, symbols, or absolute time). Alignment points occur periodically. Alignment points (including periodicity) can be configured using cell common control or data signals, group common control or data signals, UE-specific control or data signals, or any combination thereof. Additionally or alternatively, alignment points may be defined according to a specification protocol.

[0105] The following provides some details on the implementation method.

[0106] A) Predefined or pre-configured time-frequency resource allocation for DL ​​and UL: In this case, the UE may have a predefined time-frequency resource allocation for DL ​​and a predefined time-frequency resource allocation for UL. The UE may receive signaling (e.g., semi-static signaling / e.g., higher-layer signaling such as RRC and / or MAC-CE) for pre-configuring a time-frequency resource allocation for DL ​​and a time-frequency resource allocation for UL. The signaling may also include configuration of associated parameters, including resource allocation parameters such as one or more of the following: one or more of the S_offset, L or T_offset described above, resource allocation for PDCCH (e.g., PDCCH CORESET), PDCCH timing (e.g., time domain, such as the symbol position of PDCCH timing), indication of the presence of any Level 2 DCI, resource allocation for Level 2 DCI, parameter set information for DL ​​resource allocation (e.g., subcarrier spacing), parameter set information for UL resource allocation, parameter set information for PDCCH, time reference point, and reference time for LP-WUS signaling to schedule resources.

[0107] B) Pre-configuration + Dynamic Indication: In this case, a set of time-frequency resource allocations for DL ​​and UL can be pre-configured separately. Dynamic indications can be sent to indicate specific resource allocations to the UE. The UE can receive signaling (e.g., semi-static signaling / higher-layer signaling such as RRC and / or MAC-CE) for pre-configuring a set of time-frequency resource allocations for DL ​​and a set for UL, wherein the time-frequency resources (or resource allocations) are indexed in each set, and the time-frequency resources (allocations) in each set can be assigned a unique index. The signaling may also include the configuration of the associated parameters discussed earlier.

[0108] LP-WUS signaling may include indications to the UE. These indications may indicate whether predefined and / or pre-configured DL and / or UL time-frequency resource allocations are active and / or which of them are active. Activated DL / UL allocations indicate that DL / UL services are scheduled for UE reception and / or transmission on the scheduled resources. LP-WUS signaling may include a resource index indicating a time-frequency resource allocation from a set of time-frequency resource allocations pre-configured for DL, and / or a resource index indicating a time-frequency resource allocation from a set of time-frequency resource allocations pre-configured for UL. LP-WUS signaling may also include indications to the UE whether to monitor one or more pre-configured PDCCH timings after a single transmission. LP-WUS may also include indications indicating whether MR usage is triggered. LP-WUS may also indicate other relevant information for scheduling. For example, LP-WUS may carry one or more indications indicating power control information. In one example, LP-WUS may include power control information such as target received power, path loss compensation factor, transmit power control command, and / or other similar information. The LP-WUS may carry one or more indications indicating timing advance information for the UL. In one example, the LP-WUS may include a timing advance value. The LP-WUS may also carry indication information to indicate PDCCH (or LP-WUS) monitoring skip information. For example, the LP-WUS may indicate the number of PDCCH timings to be skipped, the number of LP-WUS timings to be skipped, and the duration for which the PDCCH timings and / or LP-WUS timings will be skipped.

[0109] In some implementations, LP-WUS can use the same scheduling format as the main radio (MR) in 5G systems, such as DCI, where the scheduling messages can include more complex instructions than the simplified instructions described above for time and frequency resource allocation.

[0110] The following content provides further details on several LP-WUS instruction operations, based on the preceding description.

[0111] In some implementations indicated by LP-WUS, the time-frequency resource allocations for DL ​​and UL are predefined or preconfigured. A time-frequency resource allocation for DL ​​and a time-frequency resource allocation for UL can be preconfigured or predefined for the UE. In this case, the UE can have a predefined time-frequency resource allocation for DL ​​and a predefined time-frequency resource allocation for UL. The UE can receive signaling (e.g., semi-static signaling / higher-layer signaling such as RRC and / or MAC-CE) used to preconfigure the time-frequency resource allocation for DL ​​and the time-frequency resource allocation for UL. The signaling may also include the configuration of associated parameters, including resource allocation parameters, such as one or more of the following: one or more of the S_offset, L or T_offset described above, resource allocation of PDCCH (e.g., PDCCH CORESET), PDCCH timing, indication of the presence of any second-level DCI, resource allocation of second-level DCI, parameter set information of DL resource allocation (e.g., subcarrier spacing), parameter set information of UL resource allocation, parameter set information of PDCCH, time reference point, and reference time for LP-WUS signaling to perform resource scheduling.

[0112] LP-WUS signaling may include indications to the UE. These indications may indicate whether predefined and / or pre-configured DL and / or UL time-frequency resource allocations are active and / or which of them are active. Activated DL / UL allocations indicate that DL / UL services are scheduled for UE reception and / or transmission on the scheduled resources. LP-WUS signaling may include a resource index indicating a time-frequency resource allocation from a set of time-frequency resource allocations pre-configured for DL, and / or a resource index indicating a time-frequency resource allocation from a set of time-frequency resource allocations pre-configured for UL. LP-WUS signaling may also include indications to the UE whether to monitor one or more pre-configured PDCCH timings after a single transmission. LP-WUS may also include indications indicating whether MR usage is triggered. LP-WUS may also indicate other relevant information for scheduling. For example, LP-WUS may carry one or more indications indicating power control information. In one example, LP-WUS may include power control information such as target received power, path loss compensation factor, transmit power control command, and / or other similar information. The LP-WUS may carry one or more indications indicating timing advance information for the UL. In one example, the LP-WUS may include a timing advance value. The LP-WUS may also carry indication information to indicate PDCCH (or LP-WUS) monitoring skip information. For example, the LP-WUS may indicate the number of PDCCH timings to be skipped, the number of LP-WUS timings to be skipped, and the duration for which the PDCCH timings and / or LP-WUS timings will be skipped.

[0113] LP-WUS signaling can be UE-specific, group-common, or cell-common. LP-WUS signaling may include an indication with several bits to notify the UE or a group of UEs whether any DL and / or UL transmissions have been scheduled, and / or which DL and / or UL transmissions have been scheduled (active DL / UL indication). Additionally, LP-WUS may include an indication to notify whether to monitor an ongoing PDCCH timing, or how many PDCCH timings to skip before resuming PDCCH monitoring.

[0114] Table 1 shows an example of LP-WUS signaling used to indicate some of the aforementioned notification scenarios using three bits. The LP-WUS indication includes three bits to indicate whether DL service is active, whether UL service is active, and whether PDCCH is being monitored. In this case, the LP-WUS indication may include three bits to indicate eight scenarios. Each scenario is assigned an indication index as shown in Table 1.

[0115]

[0116] Table 1 Examples of LP-WUS Signaling

[0117] In 1, an indicator index can indicate the following: whether the DL service is active (yes: No: ×), is the UL service activated (Yes: No: ×) and whether the PDCCH timing is monitored (Yes: No: ×).

[0118] Other indication mechanisms can be used. In some implementations, each of the three bits can be used to provide a corresponding indication. For example, one bit indicates whether the DL service is active, one bit indicates whether the DL service is active, and one bit indicates whether the PDCCH is being monitored.

[0119] By pre-configuring allocation information (e.g., including time and frequency allocations, offset information such as S-offset, L-offset, T-offset, parameter set information, time reference information, and other information discussed earlier) for DL ​​services, UL services, and PDCCH timing during power-saving operation, the number of information bits carried in LP-WUS can be significantly reduced. In the example described above, instead of carrying a large number of bits to indicate the resource allocation information discussed earlier, only 3 bits are needed. This method reduces the power consumption of transmitting and receiving LP-WUS.

[0120] In some implants of LP-WUS indication, the UE may receive signaling (e.g., semi-static signaling / e.g., higher-layer signaling such as RRC and / or MAC-CE) to preconfigure a set of time-frequency resource allocations for DL ​​and a set of time-frequency resource allocations for UL, wherein time-frequency resources are indexed in each set of time-frequency resource allocations, and time-frequency resources in each set can be assigned a unique index. The signaling may also include configuration of associated parameters, including resource allocation parameters such as one or more of the following: one or more of the S_offset, L, or T_offset described above; resource allocation for PDCCH (e.g., PDCCH CORESET); PDCCH timing for PDCCH (e.g., time domain, such as the symbol position of the PDCCH timing); indication of the presence of any Level 2 DCI; resource allocation for Level 2 DCI; parameter set information for DL ​​resource allocation (e.g., subcarrier spacing); parameter set information for UL resource allocation; parameter set information for PDCCH; time reference point; and reference time for LP-WUS signaling to schedule resources.

[0121] In addition to indicating whether DL and / or UL services are active and whether PDCCH monitoring is performed as discussed above, LP-WUS signaling may also include indication information indicating a DL time-frequency resource allocation and / or a UL time-frequency resource allocation. LP-WUS may also include indications indicating whether MR usage is triggered. LP-WUS may also indicate other relevant information for scheduling. For example, LP-WUS may carry one or more indications indicating power control information. In one example, LP-WUS may include power control information such as target received power, path loss compensation factor, transmit power control command, and / or other similar information. LP-WUS may carry one or more indications indicating UL timing advance information. In one example, LP-WUS may include a timing advance value. LP-WUS may also carry indication information indicating PDCCH (or LP-WUS) monitoring skip information. For example, LP-WUS may indicate the number of PDCCH timings to be skipped, the number of LP-WUS timings to be skipped, and the duration for which the PDCCH timings and / or LP-WUS timings will be skipped.

[0122] Table 2 shows an example of resource indication in LP-WUS. In addition to indication information (e.g., the 3 bits shown in Table 1) indicating the active DL service, active DL and / or PDCCH timing monitoring discussed above, LP-WUS may also include a DL indication index to indicate one or more specific resource allocations for the active DL service.

[0123]

[0124] Table 2. Exemplary DL resource indications in LP-WUS

[0125] Table 3 shows another example of resource indication in LP-WUS. In addition to indication information (e.g., the 3 bits shown in Table 1) indicating the active DL service, active DL and / or PDCCH timing monitoring discussed above, LP-WUS may also include a UL indication index to indicate one or more specific resource allocations for the active DL service.

[0126]

[0127] Table 3 Exemplary UL Resource Indications in LP-WUS

[0128] As shown in Tables 2 and 3, the LP-WUS signal can also indicate DL time-frequency resource allocations from a set of 2N time-frequency resource allocations pre-configured for DL ​​and / or UL time-frequency resource allocations from a set of 2M time-frequency resource allocations pre-configured for UL. M and N are each positive integers. M and N can be configured using cell common signaling, group common signaling, or UE-specific signaling. In this example, a time-frequency resource (allocation) index is included in the LP-WUS signaling to indicate the time-frequency resource allocation for DL ​​or UL, and two time-frequency resource (allocation) indices are used in the LP-WUS signaling to indicate two time-frequency resource allocations for DL ​​and UL, respectively.

[0129] In one example, when indicator index 4 in Table 1 is included in LP-WUS, it means that DL service is active, and the UE should receive DL service, the UE should monitor PDCCH timing, and UL service is inactive. Furthermore, LP-WUS also includes DL indicator index 1 in Table 2, which indicates a second pre-configured time-frequency resource allocation for DL. Therefore, the UE can use the second pre-configured time-frequency resource allocation for DL ​​to receive DL service. In another example, when indicator index 7 in Table 1 is included in LP-WUS, it means that UL is active, the UE should transmit UL service, the UE should monitor PDCCH timing, and DL service is inactive, so the UE does not need to monitor DL ​​service. Additionally, LP-WUS signaling also includes UL indicator index 1 in Table 3, which indicates a second pre-configured time-frequency resource allocation for UL. Therefore, the UE can use the second pre-configured time-frequency resource allocation for UL to transmit UL service. In another example, when indicator index 3 in Table 1 is included in LP-WUS, it means that the UE should receive DL services, transmit UL services, and monitor PDCCH timing. Furthermore, LP-WUS also includes DL indicator index 1 in Table 2 and UL indicator index 1 in Table 3. The DL indicator index indicates a second pre-configured time-frequency resource allocation for DL, and the UL indicator index indicates a second pre-configured time-frequency resource allocation for UL. Therefore, the UE can use the second pre-configured time-frequency resource allocation for DL ​​to receive DL services and use the second pre-configured time-frequency resource allocation for UL to transmit UL services.

[0130] In these examples, additional bits may be required. The number of additional bits included in the LP-WUS signaling can depend on the scheduling status of the active DL and / or UL services. If only the DL service is active (i.e., being scheduled), it can be N bits; if only the UL service is active, it can be M bits; or if both the DL and UL services are active (i.e., being scheduled), it can be N+M bits.

[0131] This approach offers flexibility in resource allocation. For example, by pre-configuring a set of DL or UL resources to the UE, the network can dynamically assign one of the pre-configured resources in that set to a UE at a given time. This helps the network avoid resource conflicts when it can assign resources to different UEs simultaneously. Furthermore, the size of each resource allocation within this pre-configured set can differ, allowing the network to adjust resource allocation based on traffic volume at each scheduling time and optimize system resource utilization. On the other hand, by pre-configuring this set of resources, LP-WUS only needs to include an index, rather than the large number of bits specifying the resource allocation, thus reducing the number of information bits carried by LP-WUS and lowering its transmission and reception power consumption.

[0132] Tables 1, 2, and 3 are provided as examples of indicator bits in configuring LP-WUS. Other definitions or configurations of indicator bits may also be used to provide indication for the information discussed above. Configurations can be defined in the specification protocol. Additionally or alternatively, configurations can be configured via cell common signaling, group common signaling, and / or UE-specific signaling. Resource allocations (e.g., pre-configured UL or DL ​​allocations discussed in Tables 1, 2, or 3) may include time-frequency resource allocations of one or more resource blocks, or any other allocation including one or more time units and / or one or more frequency units. Time units may be symbols, time slots, subframes, frames, or other time-domain allocation units. Frequency units may be subcarriers, resource blocks (RBs), subbands, carriers, or other frequency-domain allocation units.

[0133] Figure 7 An exemplary power-saving mode operation 700 is shown. Figure 7 This includes base station 702 and UE 704. At 710, BS 702 sends configuration information to UE 704. The configuration information may include configurations of one or more parameters discussed earlier, such as one or more of S_offset, L, or T_offset, PDCCH resource allocation (e.g., PDCCH CORESET), PDCCH timing (e.g., time domain, such as the symbol position of the PDCCH timing), indication of the presence of any Level 2 DCI, Level 2 DCI resource allocation, parameter set information for DL ​​resource allocation (e.g., subcarrier spacing), parameter set information for UL resource allocation, PDCCH parameter set information, time reference point, and reference time for LP-WUS signaling resource scheduling.

[0134] In some cases, the configuration may include a time-frequency resource allocation for DL ​​and a time-frequency resource allocation for UL. Alternatively or additionally, the configuration may include a set of time-frequency resource allocations for DL ​​and a set of time-frequency resource allocations for UL.

[0135] Configuration can be sent using cell common signaling, group common signaling, or UE-specific signaling. Configuration can be sent using RRC and / or MAC-CE. Configuration can be sent in one or more messages.

[0136] At 720, BS 702 sends LP-WUS to UE 704. Upon receiving LP-WUS, the UE may be in power-saving mode. LP-WUS may include indication information indicating whether DL is active, UL is active, and / or whether PDCCH is being monitored. In some cases, LP-WUS may include information indicating the allocation of a specific DL or UL resource from a set of pre-configured DL or UL resources intended for receiving DL services or transmitting UL services.

[0137] In some cases, LP-WUS may also include indications of whether MR, power control information, UL timing advance information and / or PDCCH (or LP-WUS) monitoring skip information is triggered.

[0138] Upon receiving an LP-WUS, UE 704 and BS 702 can communicate according to the LP-WUS. For example, if the LP-WUS indicates that DL service is active, BS 702 can send DL service, and UE 704 can receive DL service accordingly. If the LP-WUS indicates that UL service is active, UE 704 can send UL service, and BS 702 can receive UL service accordingly. If the LP-WUS indicates that PDCCH monitoring is required, UE 704 can continue monitoring the PDCCH. If the LP-WUS indicates that PDCCH monitoring is not required, UE 704 enters sleep mode after processing the indication from the LP-WUS.

[0139] In some aspects of this disclosure, an apparatus / chipset system is provided, comprising components (e.g., at least one processor) for implementing a method implemented by a UE of this disclosure (or at a UE of this disclosure). The apparatus / chipset system may be a UE (i.e., a terminal device) or a module / component within a UE. Specifically, at least one processor may execute instructions stored in a computer-readable medium to implement the method.

[0140] In some aspects of this disclosure, an apparatus / chipset system is provided, comprising components (e.g., at least one processor) for implementing methods implemented by a network device (e.g., a base station) of this disclosure (or at the network device of this disclosure). The apparatus / chipset system may be a network device or a module / component within a network device. Specifically, at least one processor may execute instructions stored in a computer-readable medium to implement the methods. In some aspects of this disclosure, a system is provided, comprising at least one of means in (or at the UE) of this disclosure or in (or at the network device of this disclosure).

[0141] In some aspects of this disclosure, a method performed by a system is provided, the system comprising at least one of means in (or at) a UE of this disclosure and means in (or at) a network device of this disclosure.

[0142] In some aspects of this disclosure, a computer program comprising instructions is provided. When executed by a processor, the instructions enable the processor to implement the methods of this disclosure.

[0143] In some aspects of this disclosure, a non-transitory computer-readable medium is provided that stores instructions which, when executed by a processor, enable the processor to implement the methods of this disclosure.

[0144] The schemes described in this disclosure are applicable to next-generation (e.g., sixth-generation, 6G or higher) networks, or traditional (e.g., 5G, 4G, 3G or 2G) networks.

[0145] It should be understood that any module, component, or device that executes instructions disclosed herein may include or otherwise access one or more non-transitory computer / processor-readable storage media for storing information, such as computer / processor-readable instructions, data structures, program modules, and / or other data. A non-exhaustive list of examples of non-transitory computer / processor-readable storage media includes magnetic tape cassettes, magnetic tape, disk storage or other magnetic storage devices, compact disc read-only memory (CD-ROM), digital video disc or digital versatile disc (DVD), Blu-ray Disc™ and other optical storage, volatile and non-volatile, removable and non-removable media implemented in any method or technology, random-access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies. Any such non-transitory computer / processor storage medium may be part of a device or apparatus, or accessible or connectable by a device or apparatus. Computer / processor-readable / executable instructions used to implement the methods, applications, or modules described herein may be stored in or otherwise preserved by such non-transitory computer / processor-readable storage media.

[0146] It should be noted that the term "message" in this disclosure can be replaced with "information," which may be carried in a single message or in more than one separate message.

[0147] Unless otherwise specified, the terms “apparatus” and “equipment” are used interchangeably, as are the terms “identifier” and “identifier”.

[0148] In this disclosure, when used in conjunction with the terms “comprising” or “including” in the claims and / or specification, the word “a” or “an” may mean “one”, but it also has the same meaning as “one or more,” “at least one,” and “one or more,” unless explicitly stated otherwise. Similarly, the word “another” may refer to at least a second or more, unless explicitly stated otherwise.

[0149] In this disclosure, when used before the same term (e.g., ED or operational step), the words "first," "second," etc., do not imply an order or sequence of the terms. For example, unless otherwise specified, "first ED" and "second ED" refer to two different EDs; similarly, unless otherwise specified, "first step" and "second step" refer to two different operational steps, but this does not mean that the first step must occur before the second step. The actual order depends on the logic of the two steps.

[0150] The terms “coupling” or “connection” as used herein can have several different meanings depending on the context in which they are used. For example, depending on the specific context, the terms “coupling” or “connection” as used herein can indicate that two elements or devices are directly connected to each other or connected to each other by mechanical elements through one or more intermediate elements or devices.

[0151] Note that the expression "at least one of A or B" as used herein is interchangeable with the expression "A and / or B". It refers to a list from which either A or B, or both A and B, can be selected. Similarly, the expression "at least one of A, B, or C" as used herein is interchangeable with "A and / or B and / or C" or "A, B, and / or C". This expression refers to a list from which: either A or B or C, or both A and B, or both A and C, or both B and C, or all of A, B, and C, can be selected. The same principle applies to longer lists with the same format.

[0152] This disclosure includes various embodiments, not only method embodiments but also other embodiments, such as apparatus embodiments and embodiments involving non-transitory computer-readable storage media. Embodiments may be incorporated individually or in combination with the features disclosed herein.

[0153] The terms “receive,” “detect,” and “decode” as used herein can have several different meanings depending on the context in which they are used. For example, without specific indication, the term “receive” can indicate that information (e.g., DCI or MAC-CE, RRC signaling, or TB) has been successfully received by the receiving node, meaning that the receiving side correctly detected and decoded it. In this scenario, “receive” can include both “detect” and “decode,” or it can indicate the same thing; for example, “receive paging” means that the paging was correctly decoded and successfully obtained, and correspondingly, “received paging” means that the receiving side did not detect and / or decode the paging. “Not received paging” means that the receiving side attempted to detect and / or decode the paging but was unsuccessful in obtaining it. The term “receive” may sometimes indicate that a signal has arrived at the receiving side, but this does not mean that the information in the signal has been correctly detected and decoded. The receiving side needs to perform detection and decoding on the signal to obtain the information carried in the signal. In this scenario, “receive,” “detect,” and “decode” can indicate different processes by which the receiving side obtains the information. In this disclosure, the terms “transmit” and “transmit” are used interchangeably in the embodiments of this application.

[0154] While this disclosure relates to illustrative embodiments, it is not intended to be construed as limiting. Those skilled in the art will recognize various modifications and combinations of the illustrative embodiments, as well as other embodiments of this disclosure, upon referring to this description. When two or more embodiments are combined, not all features of the embodiments to be combined are necessary for the combination.

[0155] Additionally or alternatively, features disclosed herein in the context of any particular embodiment may be implemented in other embodiments. For example, method embodiments may be implemented in apparatus, system, and / or computer program product embodiments. Furthermore, although embodiments are described primarily in the context of methods and apparatus, other implementations are contemplated as instructions stored in one or more non-transitory computer-readable media, etc. Such media may store programs or instructions to perform any of the various methods consistent with this disclosure.

Claims

1. A method, characterized in that, include: Receive a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication being used to indicate at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is monitored. Communicate with the second node according to the LP-WUS.

2. The method according to claim 1, characterized in that, At least one of the following is pre-configured: a first time offset associated with the DL resource allocation, a duration associated with the DL resource allocation, or a second time offset associated with the UL resource allocation.

3. The method according to claim 1 or 2, characterized in that, At least one of the following is pre-configured: resource allocation of the PDCCH, PDCCH timing of the PDCCH, indication of the presence of second-level downlink control information (DCI), parameter set information of the DL resource allocation, parameter set information of the UL resource allocation, parameter set information of the PDCCH, or alignment point.

4. The method according to any one of claims 1 to 3, characterized in that, The LP-WUS carries 3 bits of the first indication.

5. The method according to any one of claims 1 to 4, characterized in that, The LP-WUS carries a second indication for indicating at least one of the DL resource allocation or the UL resource allocation.

6. The method according to claim 5, characterized in that, The second indication includes at least one of an index representing the DL resource allocation and an index representing the UL resource allocation, wherein the DL resource allocation belongs to a set of pre-configured DL resource allocations and the UL resource allocation belongs to a set of pre-configured UL resource allocations.

7. The method according to claim 6, characterized in that, The set of pre-configured DL resources or the set of pre-configured UL resources are indicated in cell common control signaling, group common control signaling, or user equipment (UE) specific control signaling.

8. The method according to any one of claims 1 to 7, characterized in that, The LP-WUS carries a third indication for indicating at least one of the following: triggering using the main radio (MR), power control information, UL timing advance information, or monitoring skip information.

9. A method, characterized in that, include: Send a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication being used to indicate at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is being monitored. Communicate with the second node according to the LP-WUS.

10. The method according to claim 9, characterized in that, At least one of the following is pre-configured: a first time offset associated with the DL resource allocation, a duration associated with the DL resource allocation, or a second time offset associated with the UL resource allocation.

11. The method according to claim 9 or 10, characterized in that, At least one of the following is pre-configured: resource allocation of the PDCCH, PDCCH timing of the PDCCH, indication of the presence of second-level downlink control information (DCI), parameter set information of the DL resource allocation, parameter set information of the UL resource allocation, parameter set information of the PDCCH, or alignment point.

12. The method according to any one of claims 9 to 11, characterized in that, The LP-WUS carries 3 bits of the first indication.

13. The method according to any one of claims 9 to 12, characterized in that, The LP-WUS carries a second indication for indicating at least one of the DL resource allocation or the UL resource allocation.

14. The method according to claim 13, characterized in that, The second indication includes at least one of an index representing the DL resource allocation and an index representing the UL resource allocation, wherein the DL resource allocation belongs to a set of pre-configured DL resource allocations, or the UL resource allocation belongs to a set of pre-configured UL resource allocations.

15. The method according to claim 14, characterized in that, The set of pre-configured DL resources or the set of pre-configured UL resources are indicated in cell common control signaling, group common control signaling, or user equipment (UE) specific control signaling.

16. The method according to any one of claims 9 to 15, characterized in that, The LP-WUS carries a third indication for indicating at least one of the following: triggering using the main radio (MR), power control information, UL timing advance information, or monitoring skip information.

17. A communication device, characterized in that, Used to perform the method according to any one of claims 1 to 16.

18. The communication device according to claim 17, characterized in that, include: The transceiver module is used for: Receive a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication being used to indicate at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is monitored. Communicate with the second node according to the LP-WUS.

19. The communication device according to claim 17, characterized in that, include: The transceiver module is used for: Send a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries an indication for indicating at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is monitored. Communicate with the second node according to the LP-WUS.

20. The communication device according to claim 17, characterized in that, include: Interface circuit, used for: Receive a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication being used to indicate at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is monitored. Communicate with the second node according to the LP-WUS.

21. The communication device according to claim 17, characterized in that, include: Interface circuit, used for: Send a low-power wake-up signal (LP-WUS), wherein the LP-WUS carries a first indication, the first indication being used to indicate at least one of the following: whether downlink (DL) resource allocation is activated, whether uplink (UL) resource allocation is activated, or whether the physical downlink control channel (PDCCH) is being monitored. Communicate with the second node according to the LP-WUS.

22. The communication device according to claim 20 or 21, characterized in that, The interface circuit includes one or more transceivers.

23. An apparatus, characterized in that, include: One or more processors; One or more memories, the one or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to perform the method according to any one of claims 1 to 16.

24. A communication system, characterized in that, The communication system includes: a first communication device for performing the method according to any one of claims 1 to 8; and a second communication device for performing the method according to any one of claims 9 to 16.

25. A non-transitory computer-readable storage medium, characterized in that, It stores instructions that, when executed by the device, cause the device to perform the method according to any one of claims 1 to 16.

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