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WO2025031473A1 - Procédé et appareil de communication, dispositif réseau et dispositif terminal - Google Patents

Procédé et appareil de communication, dispositif réseau et dispositif terminal Download PDF

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Publication number
WO2025031473A1
WO2025031473A1 PCT/CN2024/110947 CN2024110947W WO2025031473A1 WO 2025031473 A1 WO2025031473 A1 WO 2025031473A1 CN 2024110947 W CN2024110947 W CN 2024110947W WO 2025031473 A1 WO2025031473 A1 WO 2025031473A1
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WO
WIPO (PCT)
Prior art keywords
wake
signal
capability
time
frequency resource
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/110947
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English (en)
Chinese (zh)
Inventor
周化雨
雷珍珠
丁昱
潘振岗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spreadtrum Communications Shanghai Co Ltd
Original Assignee
Spreadtrum Communications Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spreadtrum Communications Shanghai Co Ltd filed Critical Spreadtrum Communications Shanghai Co Ltd
Publication of WO2025031473A1 publication Critical patent/WO2025031473A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technology, and in particular to a communication method and apparatus, a network device, and a terminal device.
  • LP-WUS low power wake-up signal
  • the terminal device can only turn on the low-power wake-up signal receiver (LP-WUS receiver, LP-WUR or LR) that is independent of the main radio (MR). In this way, the terminal device can turn off the main radio to achieve energy saving (reducing power consumption), and can also listen to the low-power wake-up signal through the low-power wake-up signal receiver to wait for being woken up by the network to achieve network accessibility. In short, through the main radio and the low-power wake-up signal receiver, both energy saving and network accessibility can be achieved.
  • LP-WUS receiver low-power wake-up signal receiver
  • LR low-power wake-up signal receiver
  • the coverage of the signal can affect the communication quality and system overhead, etc.
  • the low-power wake-up signal carries information in a specific way, the coverage of the low-power wake-up signal may be poor. Therefore, how to improve the coverage of the low-power wake-up signal requires further research.
  • the present application provides a communication method and apparatus, a network device and a terminal device, in the hope of solving the problem of how to improve the coverage of a low-power wake-up signal.
  • the first aspect is a communication method of the present application, comprising:
  • the first configuration information includes at least one of a code length of a wake-up signal, a number of repetitions of the wake-up signal, and a length of the wake-up signal.
  • the present application can implement at least one of the code length of the network configuration wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal through the first configuration information.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal according to different scenarios and needs, so as to improve the coverage of the wake-up signal by at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal.
  • the network device can configure different wake-up signal code lengths.
  • the longer the code length the higher the complexity of the low-power receiver, which is reflected in the need to buffer more soft bits; the shorter the code length, the lower the complexity of the low-power receiver, which is reflected in the need to buffer fewer soft bits.
  • the network device can configure different repetition times of the wake-up signal. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of soft bit merging; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is greater, which is reflected in the number of soft bit merging.
  • the network device can configure different wake-up signal lengths.
  • a second aspect is a communication method of the present application, comprising:
  • the first configuration information includes at least one of a code length of a wake-up signal, a number of repetitions of the wake-up signal, and a length of the wake-up signal.
  • the third aspect is a communication method of the present application, comprising:
  • the first capability and/or the second capability reported by the receiving terminal device include the capability related to the code length of the wake-up signal, and the second capability includes the capability related to the number of repetitions of the wake-up signal.
  • the present application can report the capabilities of the terminal device, which include the first capability and/or the second capability, so that the network device can obtain the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device based on the first capability and/or the second capability.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal according to the first capability and/or the second capability.
  • the network device can configure different code lengths of the wake-up signal.
  • the longer the code length the higher the complexity of the low-power receiver, which is reflected in the need to cache more soft bits; the shorter the code length, the lower the complexity of the low-power receiver, which is reflected in the need to cache fewer soft bits.
  • the network device can configure different repetition times of the wake-up signal. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of soft bit merging; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is greater, which is reflected in the number of soft bit merging.
  • a fourth aspect is a communication method of the present application, comprising:
  • the first capability includes a capability related to a code length of a wake-up signal
  • the second capability includes a capability related to a number of repetitions of the wake-up signal
  • a fifth aspect is a communication method of the present application, comprising:
  • a third capability reported by a receiving terminal device wherein the third capability includes a capability related to the product of a code length of a wake-up signal and a number of repetitions of the wake-up signal.
  • the present application can report the capabilities of the terminal device, which include the third capability, so that the network device can obtain the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device based on the first capability and/or the second capability.
  • the network device can flexibly configure the code length of the wake-up signal and the number of repetitions of the wake-up signal according to the third capability, reduce the capability combination of the terminal device, save signaling/network overhead, and reduce the type of terminal equipment.
  • the network device can configure different code lengths of the wake-up signal and different repetition times of the wake-up signal. Among them, if the code length is longer, the complexity of the low-power receiver is higher, which is reflected in the need to cache more soft bits; if the code length is shorter, the complexity of the low-power receiver is lower, which is reflected in the need to cache fewer soft bits. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of times the soft bits are merged; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is higher, which is reflected in the number of times the soft bits are merged.
  • a sixth aspect is a communication method of the present application, comprising:
  • the third capability includes a capability related to a product of a code length of a wake-up signal and a number of repetitions of the wake-up signal.
  • a seventh aspect is a communication method of the present application, comprising:
  • the first time-frequency resource is used to send a wake-up signal, and the first time-frequency resource is related to a code length of the wake-up signal and/or a number of repetitions of the wake-up signal;
  • the first relationship includes an association between the first time-frequency resource and a code length of a wake-up signal and/or a number of repetitions of the wake-up signal.
  • the present application may consider that the first time-frequency resource used to carry the wake-up signal is related to the code length of the wake-up signal and/or the number of repetitions of the wake-up signal.
  • the terminal device can report its own capabilities regarding the code length of the wake-up signal and/or the number of repetitions of the wake-up signal
  • the network device can send the wake-up signal on different first time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive wake-up signals on different first time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the network device can configure the association between the first time-frequency resource and the code length of the wake-up signal and/or the number of repetitions of the wake-up signal to improve the configuration flexibility. In this way, the network device can send the wake-up signal on different time-frequency resources according to the association.
  • terminal devices with different capabilities can receive the wake-up signal on different first time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • An eighth aspect is a communication method of the present application, comprising:
  • the first time-frequency resource is used to receive a wake-up signal, and the first time-frequency resource is related to a code length of the wake-up signal and/or a number of repetitions of the wake-up signal.
  • a ninth aspect is a communication method of the present application, comprising:
  • the second time-frequency resource is used to send a wake-up signal, and the second time-frequency resource is related to a product of a code length of the wake-up signal and a number of repetitions of the wake-up signal;
  • the second relationship includes an association relationship between the second time-frequency resource and a product of a code length of the wake-up signal and a number of repetitions of the wake-up signal.
  • the present application may consider that the second time-frequency resource used to carry the wake-up signal is related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the terminal device can report its own capabilities related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal
  • the network device can send the wake-up signal on different second time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive wake-up signals on different second time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the network device can configure the association relationship between the second time-frequency resource and the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal to improve the configuration flexibility. In this way, the network device can send the wake-up signal on different second time-frequency resources according to the association relationship.
  • terminal devices with different capabilities can receive the wake-up signal on different second time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • a tenth aspect is a communication method of the present application, comprising:
  • the second time-frequency resource is used to receive a wake-up signal, and the second time-frequency resource is related to the product of a code length of the wake-up signal and a number of repetitions of the wake-up signal.
  • a communication device of the present application includes:
  • a sending unit is used to send first configuration information, where the first configuration information includes at least one of a code length of a wake-up signal, a number of repetitions of the wake-up signal, and a length of the wake-up signal.
  • a twelfth aspect is a communication device of the present application, including:
  • An acquisition unit is used to acquire first configuration information, where the first configuration information includes at least one of a code length of a wake-up signal, a number of repetitions of the wake-up signal, and a length of the wake-up signal.
  • a thirteenth aspect is a communication device of the present application, comprising:
  • a receiving unit is used to receive a first capability and/or a second capability reported by a terminal device, wherein the first capability includes a capability related to a code length of a wake-up signal, and the second capability includes a capability related to a number of repetitions of the wake-up signal.
  • a fourteenth aspect is a communication device of the present application, including:
  • a reporting unit is used to report a first capability and/or a second capability, wherein the first capability includes a capability related to a code length of a wake-up signal, and the second capability includes a capability related to a number of repetitions of the wake-up signal.
  • a fifteenth aspect is a communication device of the present application, including:
  • a receiving unit is used to receive a third capability reported by a terminal device, where the third capability includes a capability related to the product of a code length of a wake-up signal and a number of repetitions of the wake-up signal.
  • a sixteenth aspect is a communication device of the present application, including:
  • a reporting unit is used to report a third capability, where the third capability includes a capability related to the product of a code length of a wake-up signal and a number of repetitions of the wake-up signal.
  • a seventeenth aspect is a communication device of the present application, comprising:
  • a determining unit configured to determine a first time-frequency resource or a first relationship
  • the first time-frequency resource is used to send a wake-up signal, and the first time-frequency resource is related to a code length of the wake-up signal and/or a number of repetitions of the wake-up signal;
  • the first relationship includes an association between the first time-frequency resource and a code length of a wake-up signal and/or a number of repetitions of the wake-up signal.
  • a communication device of the present application includes:
  • a determination unit is used to determine a first time-frequency resource, where the first time-frequency resource is used to receive a wake-up signal, and the first time-frequency resource is related to a code length of the wake-up signal and/or a number of repetitions of the wake-up signal.
  • a nineteenth aspect is a communication device of the present application, comprising:
  • a determining unit configured to determine a second time-frequency resource or a second relationship
  • the second time-frequency resource is used to send a wake-up signal, and the second time-frequency resource is related to a product of a code length of the wake-up signal and a number of repetitions of the wake-up signal;
  • the second relationship includes an association relationship between the second time-frequency resource and a product of a code length of the wake-up signal and a number of repetitions of the wake-up signal.
  • a communication device of the present application includes:
  • a determining unit is configured to determine a second time-frequency resource, where the second time-frequency resource is used to receive a wake-up signal, and the second time-frequency resource is The code length of the wake-up signal is related to the product of the number of repetitions of the wake-up signal.
  • the steps in the method designed in the first aspect, the third aspect, the fifth aspect or the seventh aspect are applied to a network device.
  • the steps in the method designed in the second aspect, fourth aspect, sixth aspect or eighth aspect are applied to a terminal device.
  • the twenty-third aspect is a network device of the present application, comprising a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the first, third, fifth or seventh aspect above.
  • the twenty-fourth aspect is a terminal device of the present application, comprising a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the second, fourth, sixth or eighth aspect above.
  • the twenty-fifth aspect is a chip of the present application, comprising a processor and a communication interface, wherein the processor executes the steps of the method designed in any one of the second to eighth aspects above.
  • the twenty-sixth aspect is a chip module of the present application, comprising a transceiver component and a chip, wherein the chip comprises a processor, wherein the processor executes the steps in the method designed in any one of the second to eighth aspects above.
  • a computer-readable storage medium of the present application wherein a computer program or instruction is stored therein, and when the computer program or instruction is executed, the steps in the method designed in any one of the second to eighth aspects are implemented.
  • the computer program or instruction is executed by a processor.
  • a twenty-eighth aspect is a computer program product of the present application, comprising a computer program or an instruction, wherein when the computer program or the instruction is executed, the steps in the method designed in any one of the second to eighth aspects are implemented.
  • the computer program or the instruction is executed by a processor.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present application.
  • FIGS. 2 to 8 are schematic flow charts of a communication method according to an embodiment of the present application.
  • 9 to 14 are block diagrams showing the composition of functional units of a communication device according to an embodiment of the present application.
  • FIG15 is a schematic diagram of the structure of a network device according to an embodiment of the present application.
  • FIG. 16 is a schematic diagram of the structure of a terminal device according to an embodiment of the present application.
  • a and/or B can represent the following three situations: A exists alone; A and B exist at the same time; B exists alone. Among them, A and B can be singular or plural.
  • the symbol “/" can indicate that the objects associated with each other are in an "or” relationship.
  • the symbol “/” can also indicate a division sign, that is, performing a division operation.
  • A/B can indicate A divided by B.
  • At least one item or similar expressions refer to any combination of these items, including any combination of single items or plural items, and refer to one or more, and multiple refers to two or more.
  • at least one item of a, b, or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b, and c.
  • each of a, b, and c can be an element or a set containing one or more elements.
  • equal to can be used in conjunction with greater than, and is applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, and is applicable to the technical solution adopted when less than.
  • equal to is used in conjunction with greater than, it is not used in conjunction with less than; when equal to is used in conjunction with less than, it is not used in conjunction with greater than.
  • connection in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and there is no limitation on this.
  • the “network” in the embodiments of the present application can be expressed as the same concept as the “system”, and the communication system is the communication network.
  • the present application can be applied to various communication systems so as to meet the requirements of different communication scenarios.
  • the present application can be applied to long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, evolution system of NR system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, non-terrestrial communication network (NTN) system, universal mobile telecommunication system (UMTS), 6th-generation (6G) communication system, etc.
  • LTE long term evolution
  • LTE-A new long term evolution
  • NR new radio
  • evolution system of NR system LTE on unlicensed spectrum
  • LTE-U LTE on unlicensed spectrum
  • NR-based access to unlicensed spectrum NR-based access to unlicensed spectrum
  • NTN non-terrestrial communication network
  • UMTS universal mobile telecommunication system
  • 6G 6th-generation
  • the present application can be applied to communication scenarios such as device to device (D2D) system, machine to machine (M2M) system, machine type communication (MTC), vehicle to vehicle (V2V) system, vehicle to everything (V2X) system, narrowband Internet of things (NB-IoT) system, and passive Internet of Things communication.
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • V2X vehicle to everything
  • NB-IoT narrowband Internet of things
  • the present application can be applied to beamforming (beamforming), carrier aggregation (CA), dual connectivity (DC) or standalone (SA) deployment scenarios, etc.
  • beamforming beamforming
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone
  • Terminal equipment can be a device with receiving and sending functions. It can also be called terminal, passive device, Internet of Things device, user equipment (UE), remote terminal equipment (remote UE), relay equipment (relay UE), access terminal equipment, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent or user device.
  • UE user equipment
  • remote terminal equipment remote terminal equipment
  • relay equipment relay equipment
  • the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.
  • VR virtual reality
  • AR augmented reality
  • the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR communication system, a 6G communication system), or a terminal device in a future evolved public land mobile communication network (PLMN), etc., without specific limitation.
  • a next-generation communication system such as an NR communication system, a 6G communication system
  • PLMN future evolved public land mobile communication network
  • the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can be deployed on the water (such as ships); it can be deployed in the air (such as airplanes, balloons and satellites).
  • the terminal device may include a device with wireless communication function, such as a chip system, a chip, or a chip module.
  • a device with wireless communication function such as a chip system, a chip, or a chip module.
  • the chip system may include a chip and may also include other discrete devices.
  • the terminal device may be a chip, a chip module, a device, a unit, etc., without specific limitation.
  • a network device may be a device with transceiver functions and may be used to communicate with a terminal device.
  • the network equipment can be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data transmission and reception, etc. on the air interface side.
  • RRM radio resource management
  • QoS quality of service
  • the network equipment may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) to provide wireless communication functions, that is, the network equipment may include a device in the RAN.
  • BS base station
  • RAN radio access network
  • the devices in the RAN may include the evolutionary node B (eNB or eNodeB) in the LTE communication system, the next generation evolved node B (ng-eNB) in the NR communication system, the next generation node B (gNB) in the NR communication system, the master node (MN) in the dual connection architecture, the second node or secondary node (SN) in the dual connection architecture, etc., without specific limitation.
  • eNB or eNodeB the evolutionary node B
  • ng-eNB next generation evolved node B
  • gNB next generation node B
  • MN master node
  • SN second node or secondary node
  • the network equipment may include equipment in a core network (CN).
  • CN core network
  • the equipment in the CN may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.
  • AMF access and mobility management function
  • UPF user plane function
  • SMF session management function
  • the network device may also be an access point (AP) in a WLAN, a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, etc.
  • AP access point
  • the network device may include a device that provides wireless communication functions for the terminal device, such as a chip system, a chip, a chip Module.
  • the chip system may include a chip, or may include other discrete devices.
  • the network device can be a transmission and reception point (TRP).
  • TRP transmission and reception point
  • the network device can communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks.
  • IP Internet Protocol
  • the network device may include an independent node to implement the functions of the above-mentioned base station, or may include two or more independent nodes to implement the functions of the above-mentioned base station.
  • the network device includes a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU.
  • the network device may also include an active antenna unit (AAU).
  • AAU active antenna unit
  • the CU implements part of the functions of the network device
  • the DU implements another part of the functions of the network device.
  • the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation (SDAP) layer, and the packet data convergence (PDCP) layer.
  • RRC radio resource control
  • SDAP service data adaptation
  • PDCP packet data convergence
  • the DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer.
  • the AAU can implement some physical layer processing functions, RF processing and related functions of active antennas.
  • high-level signaling (such as RRC signaling) can be considered to be generated by the CU, sent by the DU, or sent jointly by the DU and the AAU.
  • the network device may include at least one of the CU, DU, and AAU.
  • the CU can be divided into a RAN device, or the CU can be divided into a core network device, without specific limitation.
  • the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this.
  • multi-site coherent joint transmission may be multiple sites coherent transmission, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission, and names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters.
  • the sites in multi-site coherent joint transmission may be remote radio heads (RRH), TRP, etc., and there is no specific limitation on this.
  • the network device may be any one of the multiple sites that perform incoherent joint transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this.
  • multi-site incoherent joint transmission may be multiple-site joint incoherent transmission, or different data belonging to the same PDSCH may be sent from different sites to the terminal device, and the names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters.
  • the sites in the multi-site incoherent joint transmission may be RRH, TRP, etc., and there is no specific limitation on this.
  • the transmission scheme of multiple TRPs may include an S-DCI based M-TRP transmission scheme, and may also include an M-DCI based M-TRP transmission scheme.
  • TRP of the present application is not limited to coherent joint transmission or incoherent joint transmission scenarios, but can also be applied to other scenarios without specific restrictions.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc.
  • the network device may also be a base station set up in a location such as land or water.
  • the network device can provide services for the cell, and the terminal devices in the cell can use transmission resources (such as spectrum resources) Communicate with network equipment.
  • the cell may be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.
  • the network device of the embodiment of the present application may be a chip, a chip module, a device, a unit, etc., and there is no specific limitation on this.
  • a network architecture of a communication system may refer to FIG1 .
  • a communication system 10 may include a network device 110 and a terminal device 120 .
  • FIG. 1 is merely an example of a network architecture of a communication system and does not constitute a limitation on the network architecture of the communication system of the embodiment of the present application.
  • the communication system 10 may also include a server or other devices.
  • the communication system 10 may include other network devices in addition to the network device 110 .
  • the communication system 10 may include other terminal devices in addition to the terminal device 120 .
  • the main radio which can also be called the main transceiver, overall transceiver or regular transceiver, has a complete RF and baseband processing architecture.
  • the main radio can be regarded as a module for transmitting and receiving signals/channels other than the low-power wake-up signal.
  • the primary radio may need to monitor the physical downlink control channel (PDCCH), perform radio resource management (RRM) measurements, process SS/PBCH block burst (SSB burst), detect paging early indication (PEI), etc.
  • PDCCH physical downlink control channel
  • RRM radio resource management
  • SSB burst process SS/PBCH block burst
  • PEI paging early indication
  • the power consumption of the primary radio is usually very large, for example, these power consumptions include the switching power consumption of the terminal device waking up from deep sleep, the power consumption of monitoring paging, the power consumption of performing RRM measurements, the power consumption of detecting PEI, etc.
  • the terminal device needs to monitor the paging-related PDCCH, also known as Type 2-PDCCH.
  • the radio network temporary identity (RNTI) of the paging-related PDCCH is P-RNTI
  • the downlink control information (DCI) format used is DCI format 1-0.
  • the terminal device When the terminal device detects the paging-related PDCCH (successfully descrambles the cyclic redundancy check (CRC) using the P-RNTI), the terminal device can parse the DCI.
  • the DCI may contain a short message so that the terminal device can obtain warning information or update system information.
  • the DCI may also contain scheduling information so that the terminal device can receive the paging-related physical downlink shared channel (PDSCH), thereby obtaining the paging message and further initiating a random access process to enter the connected state (RRC_connected state).
  • PDSCH paging-related physical downlink shared channel
  • the terminal device needs to use a reference signal (e.g., SSB) to complete time-frequency synchronization and complete automatic gain control (AGC) adjustment.
  • a reference signal e.g., SSB
  • AGC automatic gain control
  • the monitoring timing of paging-related PDCCH can be configured by the search space set (SSS).
  • SSS search space set
  • a terminal device in the RRC_idle state or the RRC_inactive state can use the discontinuous reception (DRX) mechanism to receive paging messages to reduce power consumption.
  • DRX discontinuous reception
  • a DRX cycle can contain one or more paging frames (PF), or one or more PFs.
  • a PF can contain one or more paging occasions (PO), or the starting points of one or more POs.
  • a DRX cycle may include a target PF or the starting point of a target PF.
  • a PF may include a target PO or the starting point of a target PO.
  • a PF can be one or more radio frames or system frames.
  • PO can be used to determine the starting point of the monitoring opportunity within the PF, can indicate the time domain position of the paging-related PDCCH, can be used to transmit paging downlink control information (paging DCI), can be composed of multiple subframes, multiple time slots or multiple OFDM symbols, and can be composed of multiple paging-related PDCCH monitoring opportunities.
  • the monitoring opportunity of the paging-related PDCCH can also be called the paging PDCCH monitoring occasion (paging PDCCH monitoring occasion, PMO). Therefore, a PO can contain multiple PMOs, or a PO is composed of a group of PMOs.
  • PMO is a plurality of monitoring opportunities in sequence starting from the starting point, and PMO is associated one-to-one with the SSB actually sent.
  • the terminal device can determine the location of the PF or PO to which it belongs based on its own device identifier.
  • the terminal device's own device identifier can also be called the terminal device's identification (TE identity or TE identifier, referred to as TE ID) or the user equipment identification (UE idendity or UE identifier, referred to as UE ID).
  • the PO in the embodiment of the present application can be understood as a paging opportunity, or as a terminal device subgroup (UE subgroup) corresponding to the PO or a terminal device group (UE group) corresponding to the PO.
  • the terminal device subgroup (terminal device group) corresponding to the PO can be understood as a set of terminal devices corresponding/mapped/associated with the same PO.
  • one PO can correspond to one terminal device subgroup (terminal group), and there is no specific limitation on this.
  • the terminal device In the RRC_idle state or RRC_inactive state, the terminal device needs to perform periodic RRM measurements, which may include serving cell measurements and neighboring cell measurements.
  • Neighboring cell measurements can include:
  • the network device gives a given frequency point, and the terminal device can search for cells and measure at the frequency point; or,
  • the network device provides a given frequency and physical cell ID (PCI), and the terminal device can use the PCI to search and measure cells at the frequency; or,
  • the network equipment does not give a given frequency point or PCI, but the terminal equipment can autonomously search for cells and perform measurements.
  • Neighbor cell measurement can be divided into intra-frequency measurement and inter-frequency measurement.
  • the measurement is a co-frequency measurement.
  • the center frequency or subcarrier spacing of the SSB in the neighboring cell is different from that of the SSB in the serving cell, then The quantity is measured at different frequencies.
  • the terminal device In the RRC_idle state or RRC_inactive state, the terminal device generally needs to perform an RRM measurement of the serving cell within a paging cycle.
  • the paging cycle is also called the DRX cycle or the idle state DRX (I-DRX) cycle.
  • monitoring the paging-related PDCCH and performing RRM measurements are the main tasks of the terminal device.
  • the network equipment In order to monitor the paging-related PDCCH and perform RRM measurements, generally speaking, the network equipment needs to wake up the paging terminal device from deep sleep in advance to process three SSB bursts, achieve a certain time-frequency synchronization to monitor the paging-related PDCCH, and perform RRM measurements at the same time.
  • the network device can configure PEI, which can be used to indicate whether the terminal device needs to continue to monitor the PDCCH related to paging, so as to achieve the purpose of saving power consumption.
  • PEI can be downlink control information or sequence, etc.
  • the terminal device When configured with PEI, the terminal device can wake up from deep sleep to process 1 SSB burst in order to achieve a certain time-frequency synchronization to detect PEI.
  • the terminal device continues to process the remaining 2 SSB bursts and continues to monitor the paging-related PDCCH.
  • the terminal device If the PEI indicates that there is no need to continue monitoring the monitoring timing of the paging-related PDCCH, the terminal device returns to deep sleep.
  • the probability that the terminal device needs to monitor the PDCCH related to paging is 10%. Therefore, at a 10% probability, the terminal device needs to process 3 SSB bursts, monitor the PDCCH related to paging, and perform RRM measurements. At a 90% probability, the terminal device only needs to process 1 SSB burst and perform RRM measurements. Therefore, at a 90% probability, the terminal device processes fewer signals/channels, wakes up for a shorter time (if it does not process signals/channels after waking up from deep sleep, it is in light sleep), and consumes less power.
  • terminal equipment can achieve the goal of saving power.
  • Network devices can wake up terminal devices from a deep sleep state, such as power saving mode (PSM), by sending a low power wakeup signal (LP-WUS).
  • PSM power saving mode
  • LP-WUS low power wakeup signal
  • the terminal device determines whether it needs to exit the deep sleep state to enter the RRC_idle state, RRC_inactive state or RRC_connected state by monitoring/detecting the low power wake-up signal. In this way, the terminal device can enter the deep sleep state and can be awakened by the network through the low power wake-up signal.
  • the "low-power wake-up signal” in this application can be referred to as “wake-up signal (WUS)”.
  • the "low-power wake-up signal” mentioned in this application can be referred to as “wake-up signal”.
  • a low-power wake-up signal receiver independent of the main radio can be used to detect a low-power wake-up signal.
  • the main radio can be regarded as a module/unit/device that is mainly used to receive signals/channels other than signals/channels related to the low-power wake-up signal.
  • low-power wake-up signals must ensure that the receiver can receive with low power consumption, and also meet the sensitivity requirements, or the signal-to-noise ratio requirements at a lower error rate. Compared with non-low-power wake-up signals, low-power wake-up signals can enable low-power wake-up signal receivers to receive wake-up signals with lower power consumption at the same delay, or receive wake-up signals with lower latency at the same power consumption.
  • the low-power wake-up signal receiver can be regarded as a module/unit/device, etc., which is mainly used to receive signals/channels related to the low-power wake-up signal, and is often independent of the main radio.
  • a low power wakeup signal receiver (low power wakeup signal receiver, abbreviated as LP-WUS receiver, LP-WUR or LR) may also be called a low power receiver (low power receiver, LPR), a wakeup signal receiver (wakeup signal receiver, abbreviated as WUS receiver or WUR), etc.
  • the terminal device can only turn on the low-power wake-up signal receiver independent of the main radio. In this way, the terminal device can turn off the main radio to achieve energy saving (reducing power consumption), and can also listen to the low-power wake-up signal through the low-power wake-up signal receiver to wait for the network to wake up, so as to achieve network accessibility. In this way, through the main radio and the low-power wake-up signal receiver, both energy saving and network accessibility are achieved.
  • the low-power wake-up signal receiver can monitor the low-power wake-up signal at a more frequent frequency, so that the terminal device can be awakened with a lower latency. Therefore, the low-power wake-up signal receiver also has the potential benefit of reducing latency.
  • the following uses on-off keying (OOK) as an example to illustrate the symbol generation of the wake-up signal. It is worth noting that the modulation/waveform of the wake-up signal is not limited to OOK, and there are other modulation/waveforms.
  • the wake-up signal can adopt on-off keying (OOK) modulation.
  • OOK modulation only has amplitude information, but no frequency or phase information, and the amplitude has only two amplitudes: high (or 1) and low (or 0).
  • the receiving method can be envelope detection, which can demodulate the signal directly by the amplitude of the received signal. Due to its simplicity, the power consumption required is also low. In this way, the low-power receiver in the terminal device can be simplified to detect the energy of the modulation symbol (rather than the amplitude/phase of the modulation symbol). As long as the energy of the modulation symbol is detected to exceed a certain threshold, it can be judged as on, otherwise it is judged as off.
  • the OOK symbol has only two amplitudes, high (or 1) and low (or 0), the OOK symbol can also be called an OOK bit, an OOK chip, or an OOK pulse. This application does not distinguish these terms, and only uses OOK symbol instead.
  • an OOK symbol can be a multi-tone or multi-carrier time domain symbol, such as a time domain symbol of Orthogonal Frequency Division Multiplexing (OFDM).
  • OFDM Orthogonal Frequency Division Multiplexing
  • an OOK symbol can be mapped to multiple subcarriers, which can be combined with subcarriers of other signals/channels to form all subcarriers in an OFDM symbol, so that the low-power wake-up signal can coexist with other signal channels in the same OFDM symbol.
  • the multiple subcarriers mapped by an OOK symbol can be random or preset.
  • mapping can be done in the following two ways:
  • sequence 1 (such as Zidoff-Chu sequence, referred to as ZC sequence) is used to map to the subcarrier subset (OFDM symbol corresponds to a subset of all subcarriers).
  • sequence 0 (such as all-zero sequence) is used to map to the subcarrier subset.
  • frequency division multiplexing and time division multiplexing can be used.
  • frequency division multiplexing multiple OOK symbols can be mapped to different subcarrier subsets.
  • time division multiplexing the subcarrier subset to be mapped can be selected with a higher subcarrier spacing so that multiple OOK symbols can be included in the current OFDM symbol.
  • ⁇ Precoding-based method also known as waveform shaping-based method
  • All OOK symbols corresponding to an OFDM symbol are processed one by one.
  • Each OOK symbol corresponds to a sequence (which can be adopted or repeated).
  • the sequence is mapped to a subset of symbols of the precoded input.
  • waveform shaping such as frequency domain truncation
  • the output is mapped to the OFDM subcarrier.
  • the number of OOK symbols corresponding to one OFDM symbol is a relatively important parameter.
  • one OFDM symbol can correspond to M OOK symbols, where M>1 and M can be selected as 8, 4, etc.
  • the low-power receiver For receiving the wake-up signal, the low-power receiver needs to deal with the timing deviation problem first. Generally speaking, a preamble part (or first part) can be placed at the beginning of the low-power wake-up signal.
  • the low power receiver can detect the leading part by means of a search window.
  • the low power receiver can determine the starting position of the message part of the low power wake-up signal.
  • the process of determining the starting position of the leading part can also be regarded as the process of obtaining the correction/processing timing deviation.
  • the message part of the wake-up signal may refer to a part after the leading part of the wake-up signal, and the message part may be called a data part or a second part.
  • the message part may carry some information, such as cell identity (cell ID) information and/or terminal device identification/user equipment identification.
  • cell ID cell identity
  • the low-power receiver can determine the current cell based on the cell identification information to reduce inter-cell interference.
  • the wake-up signal may carry information.
  • the wake-up signal carrying information is equivalent to the message part of the wake-up signal carrying information.
  • the wake-up signal can carry information in the form of a channel (or coded bits), and the transmitter (such as a network device) includes steps such as repetition, channel coding (such as Manchester coding) and/or adding CRC, and the receiver (such as a terminal device) includes steps such as removing CRC, channel decoding and/or de-duplication.
  • the transmitter such as a network device
  • the receiver such as a terminal device
  • steps such as removing CRC, channel decoding and/or de-duplication.
  • the wake-up signal can use K information bits, encoded into N coded bits, and added with M CRC bits. If the low-power receiver decodes K information bits from the received N+M bits and the CRC check succeeds, it can be confirmed that N information bits have been obtained.
  • the use of coded bit mode can also be called the use of channel mode.
  • the low-power receiver can detect the wake-up signal by envelope detection, that is, detect OOK symbols one by one. At this time, the performance of this method is low, the complexity is low, and the power consumption of the receiver is low.
  • the low-power receiver can also detect the wake-up signal by sequence detection, that is, by correlating the received sequence with all possible local sequences. At this time, due to the large number of sequences, the performance of this method is high, the complexity is high, and the power consumption of the receiver is high.
  • the wake-up signal may carry information in the form of a signal (or sequence)
  • the transmitter such as a network device
  • the receiver such as a terminal device
  • steps such as sequence detection
  • the wake-up signal may use 1 sequence, and the low-power receiver detects the presence of this 1 sequence to obtain information, which is generally called 1-bit information; for another example, the wake-up signal may use 4 sequences, and the low-power receiver detects the presence of these 4 sequences and which one (if any) is used to obtain information, which is generally called 2-bit information; for another example, the wake-up signal may use 8 sequences, and the low-power receiver detects the presence of these 8 sequences and which one (if any) is used to obtain information, which is generally called 3-bit information.
  • sequence mode can also be called signal mode.
  • the low-power receiver can also detect the wake-up signal in a sequence detection mode. At this time, due to the small number of sequences and low complexity, the receiver power consumption is low.
  • the low-power receiver can have the following two types of detection opportunities:
  • the first type of detection opportunity may be that the low power consumption receiver periodically detects the low power consumption wake-up signal.
  • the power consumption of detecting a low-power wake-up signal is relatively high, but due to the long cycle (the low-power receiver only needs to wake up once every long cycle to detect), the average power consumption is relatively low. Because it needs to wake up periodically for detection, the low-power receiver needs accurate time synchronization. Among them, this cycle can be called a duty cycle or a detection cycle (detection cycle or detection periodicity).
  • the second type of detection opportunity may be that the low power consumption receiver may be in a state of detecting a low power consumption wake-up signal all the time.
  • the state of the low power consumption wake-up signal may also be called a stand-by state.
  • the power consumption of a single detection of the wake-up signal is low, and although the detection is always in progress, the average power consumption is also low. Since the detection is always in progress, the low-power receiver does not need accurate time synchronization.
  • envelope detection architectures For OOK modulation, low-power receivers can use envelope detection architectures.
  • the envelope detection architectures can include the following three types:
  • the first architecture is based on a zero IF (zero IF) envelope detection architecture, which can be performed in the baseband.
  • the second architecture is based on a low IF (low IF) envelope detection architecture, which can be performed in the IF.
  • the third architecture is an RF-based envelope detection architecture, which can be completed in the RF.
  • the above three architectures can all realize the two types of detection opportunities in the above “detection opportunities of low-power receivers”.
  • Frequency drift accumulates over a period of time and becomes a timing deviation, causing a timing deviation in the low-power receiver, and the timing deviation can be one or more OOK symbols.
  • the low-power receiver For the first type of detection opportunity (the low-power receiver periodically detects the wake-up signal), when the detection period is too long, the accumulated timing deviation will be too large. When the timing deviation exceeds a certain level (such as exceeding a certain number of OOK symbols), the demodulation and decoding performance of the low-power receiver may drop sharply, manifested as a large miss detection rate (MDR) and/or false alarm rate (FAR).
  • MDR miss detection rate
  • FAR false alarm rate
  • the low-power receiver is always in the state of detecting the wake-up signal
  • the network device does not send the low-power wake-up signal for a long time
  • the accumulated timing deviation is too large.
  • the timing deviation exceeds a certain degree (such as exceeding a certain number of OOK symbols)
  • the time interval between the network device sending the low-power wake-up signal and the low-power receiver detecting the low-power wake-up signal will be too large, resulting in excessive delay.
  • the low-power receiver can be synchronized through a periodic synchronization signal to reduce the timing deviation.
  • the synchronization signal may be modulated using OOK.
  • the synchronization signal may not be modulated using OOK, but may be sent in the form of a frequency domain sequence (called OFDM modulation or waveform). Since the frequency domain sequence appears as a filtered time domain sequence in the time domain, the receiver may use a time domain correlation method (i.e., correlating the received time domain signal with a time domain version of the local sequence or part of the sequence).
  • OFDM modulation or waveform Since the frequency domain sequence appears as a filtered time domain sequence in the time domain, the receiver may use a time domain correlation method (i.e., correlating the received time domain signal with a time domain version of the local sequence or part of the sequence).
  • the time domain correlation method is equivalent to the frequency domain dot product method (i.e., the received frequency domain signal is dot-multiplied with the frequency domain version of the local sequence or part of the sequence).
  • the synchronization signal adopts OOK modulation
  • the synchronization signal can be different from the low-power wake-up signal, which is a preset OOK symbol sequence; the synchronization signal can also be the same as the wake-up signal, which is bit-by-bit encoded and then modulated into OOK symbols.
  • the synchronization signal is bit-encoded and then modulated, it can include a preamble part and a message part like the wake-up signal.
  • a preamble can be placed at the beginning of the synchronization signal.
  • the low-power receiver can detect the leading part by using a search window.
  • the starting position of the message part (the part after the leading part) can be determined.
  • the process of determining the starting position of the leading part can also be regarded as the process of obtaining timing information (correcting timing deviation).
  • the message part of the synchronization signal may carry some information, such as cell identification information, wherein the cell identification information may enable the low-power receiver to determine the current cell to reduce inter-cell interference.
  • the low-power receiver can still detect the synchronization signal as a sequence. In short, whether the synchronization signal is a preset OOK symbol sequence or encoded bit by bit and then modulated into OOK symbols, the low-power receiver can perform sequence detection.
  • the synchronization signal can also carry information.
  • the synchronization signal carrying information is equivalent to the message part of the synchronization signal carrying information.
  • the synchronization signal can carry information in the form of coded bits.
  • the transmitter such as a network device
  • the receiver includes steps such as repetition, channel coding (such as Manchester coding) and/or adding CRC
  • the receiver includes steps such as removing CRC, channel decoding and/or removing repetition.
  • the synchronization signal can use K information bits, which are encoded into N coded bits and added with M CRC bits. If the low-power receiver decodes K information bits from the received N+M bits and the CRC check succeeds, it can be confirmed that N information bits have been obtained.
  • Using the coded bit method can also be called the channel method.
  • the low-power receiver can detect the synchronization signal by envelope detection, that is, detecting OOK symbols one by one. In this case, the performance of this method is lower, the complexity is lower, and the receiver power consumption is lower.
  • the low-power receiver can also detect the wake-up signal by sequence detection, that is, by correlating the received sequence with all possible local sequences. In this case, due to the large number of sequences, the performance of this method is higher, the complexity is higher, and the receiver power consumption is higher.
  • the synchronization signal can also carry information in a sequence.
  • the transmitter such as a network device
  • the receiver such as a terminal device
  • steps such as sequence detection For example, the synchronization signal can use 1 sequence, and the low-power receiver detects the presence of this sequence to obtain information, which is generally called 1 bit of information; for another example, the synchronization signal can use 4 sequences, and the low-power receiver detects the presence of these 4 sequences and which one (if any) to obtain information, which is generally called 2 bits of information; for another example, the synchronization signal can use 8 sequences, and the low-power receiver detects the presence of these 8 sequences and which one (if any) to obtain information, which is generally called 3 bits of information.
  • a sequence method can also be called a signal method.
  • the low-power receiver may also detect the synchronization signal in a sequence detection manner. In this case, the receiver power consumption is low due to the small number of sequences and low complexity.
  • the wake-up signal can carry information in two ways, namely, the channel way and the sequence way.
  • the "wake-up signal” hereinbelow may refer to both the “message portion of the wake-up signal” and the “leading portion of the wake-up signal”.
  • the wake-up signal can carry more information (e.g., more bits due to repetition or upsampling).
  • the low-power receiver has a lower probability of waking up the main radio, and the main radio can stay in sleep mode for a longer time, thereby reducing the power consumption of the terminal device.
  • the channel method allows more bits to be carried, it also leads to disadvantages such as poor coverage and high system overhead under the same system overhead.
  • the low-power receiver can only use envelope detection to detect the wake-up signal, but cannot use sequence detection to detect the wake-up signal. This is because if the low-power receiver regards the wake-up signal as a sequence (including CRC) and uses sequence detection to detect the low-power wake-up signal, this will lead to too many possibilities of sequences and too high detection complexity.
  • the system overhead of the wake-up signal may be large in order to achieve the coverage target.
  • CRC since CRC needs to be added, this will also increase the system overhead of the wake-up signal.
  • the channel method can still be used in some scenarios, such as in factory buildings, where the coverage can be very small and the system overhead is not as important as the power consumption of the terminal device.
  • the present application may adopt a coding and/or repetition method, and may combine coding and repetition by first coding and then repeating.
  • the network device can configure different wake-up signal code lengths for different scenarios and/or terminal devices. Among them, if the code length is longer, the complexity of the low-power receiver is higher, which is reflected in the need to cache more soft bits; if the code length is shorter, the complexity of the low-power receiver is lower, which is reflected in the need to cache fewer soft bits.
  • code length of the wake-up signal in the present application can be understood as the length of the wake-up signal before encoding, or the length of the wake-up signal after encoding.
  • the "code length of the wake-up signal" in the present application can be understood as the length of the message part of the wake-up signal before encoding or the length of the message part of the wake-up signal after encoding.
  • the “code length of the wake-up signal” in the present application may be understood as the length of the preamble of the wake-up signal before encoding or the length of the preamble of the wake-up signal after encoding.
  • the "code length of the wake-up signal" in this application can be understood as the length of the preamble part and the message part of the wake-up signal before encoding or the length of the preamble part and the message part of the wake-up signal after encoding.
  • the network device can configure different repetition times of the wake-up signal for different scenarios and/or terminal devices.
  • the greater the number of repetitions of the wake-up signal the higher the complexity of the low-power receiver, which is reflected in the greater number of soft bit merging; If the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is lower, which is reflected in the fewer times the soft bits are combined.
  • the network device can configure different wake-up signal lengths for different scenarios and/or terminal devices.
  • the longer the length the higher the complexity of the low-power receiver, which is reflected in the need to cache more soft bits; the shorter the length, the lower the complexity of the low-power receiver, which is reflected in the fewer times the soft bits are merged.
  • the "repetition of the wake-up signal" in the present application can be understood as the repetition or upsampling of the information carried by the wake-up signal or the wake-up signal itself (including the preamble part, the message part and the CRC information as a whole) to improve the decoding performance of the wake-up signal and improve the coverage.
  • the “repetition of the wake-up signal” in the present application can be understood as the repetition of bits of the wake-up signal before encoding or the repetition of bits of the wake-up signal after encoding.
  • the “repetition of the wake-up signal” in the present application may be understood as the repetition of bits of the leading part of the wake-up signal before encoding or the repetition of bits of the leading part of the wake-up signal after encoding.
  • the “repetition of the wake-up signal” in the present application may be understood as the repetition of bits before encoding of the message part of the wake-up signal or the repetition of bits after encoding of the message part of the wake-up signal.
  • the "repetition of the wake-up signal" in this application can be understood as the repetition of the bits of the preamble part and the message part of the wake-up signal before encoding or the repetition of the bits of the preamble part and the message part of the wake-up signal after encoding.
  • the bits before the message part of the wake-up signal is encoded include 4 bits
  • the 4 bits can be repeated or upsampled.
  • the repetition or upsampling can be to repeat the 4 bits 4 times (ie, the number of repetitions is 4 times), and finally 16 bits are obtained.
  • the 8 bits of the message part of the wake-up signal include 8 bits
  • the 8 bits can be repeated or upsampled.
  • the repetition or upsampling can be to repeat the 8 bits 4 times (ie, the number of repetitions is 4 times), and finally obtain 32 bits.
  • the preamble part and the message part (such as after encoding) of the wake-up signal include 32 bits (such as the preamble part occupies 8 bits, the message part occupies 16 bits, and the CRC occupies 8 bits), the 24 bits can be repeated or upsampled.
  • the repetition or upsampling can be to repeat the 32 bits 4 times (that is, the number of repetitions is 4 times), and finally 128 bits are obtained.
  • the information carried by the wake-up signal may be information bits or sequences before encoding, or information or bits after encoding, and there is no specific limitation on this.
  • the “number of repetitions” mentioned in this application may be understood as the number or quantity of repetitions in the sense of the above-mentioned “repetition of the wake-up signal”.
  • the present application in order to improve coverage, can configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal through the network. Based on this, the present application provides a communication method, which takes the interaction between a network device and a terminal device as an example.
  • the network device can be a chip, a chip module, or a communication module, etc.
  • the terminal device can be a chip, a chip module, a communication module, or a low-power receiver, etc., without specific restrictions.
  • FIG2 is a flow chart of a communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the network device sends first configuration information, where the first configuration information includes at least one of a code length of a wake-up signal, a number of repetitions of the wake-up signal, and a length of the wake-up signal.
  • the terminal device obtains the first configuration information.
  • the present application can implement at least one of the code length of the network configuration wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal through the first configuration information.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal according to different scenarios and needs, so as to improve the coverage of the wake-up signal by at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal.
  • the network device can configure different wake-up signal code lengths.
  • the longer the code length the higher the complexity of the low-power receiver, which is reflected in the need to cache more soft bits; the shorter the code length, the lower the complexity of the low-power receiver, which is reflected in the need to cache fewer soft bits.
  • the network device can configure different repetition times of the wake-up signal. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of soft bit merging; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is greater, which is reflected in the number of soft bit merging.
  • the network device can configure different wake-up signal lengths.
  • the present application can also configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal through pre-configuration, protocol definition, autonomous determination/decision of the terminal device, etc., which will not be repeated here.
  • the length of the wake-up signal may be an information bit length or a coded bit length.
  • the present application can configure the length of the wake-up signal obtained by adopting the channel method in the network configuration.
  • the length of the wake-up signal may be the length of the sequence.
  • the present application can configure the length of the wake-up signal obtained by adopting a sequence method in the network configuration.
  • the length of the wake-up signal can be at least one of the information bit length, the encoded bit length, and the sequence length.
  • the first configuration information can be carried by system information block 1 (System Information Block 1, SIB1).
  • SIB1 System Information Block 1, SIB1
  • SIBx can be SIB2, SIB3, etc. (due to limited space, they are not listed here). Generally speaking, SIB1 mainly carries non-essential/non-important information of the cell, and SIBx mainly carries non-essential/non-important information of the cell. SIBx can also be called other system information (OSI).
  • OSI system information
  • SIB1 mainly carries necessary/important information of the cell
  • the first information can be regarded as necessary/important information.
  • the network device must send SIB1 in the main cell, and when the terminal device selects the cell, in order to ensure that the terminal device can access or reside in the cell, the terminal device must receive SIB1.
  • the present application can carry the first configuration information through SIB1, so that the terminal device can obtain the first configuration information when accessing or residing in the cell.
  • the first configuration information is carried by SIBx other than SIB1.
  • the first information can be regarded as non-essential/non-important information.
  • the network device sends SIBx as needed in the primary cell, and the terminal device can also receive SIBx as needed. In this way, the terminal device can obtain the first configuration information as needed.
  • the first configuration information is carried by a paging PDCCH or a paging message.
  • the first configuration information can be changed dynamically.
  • the network device can dynamically change the content of the first configuration information as needed, so that the terminal device can obtain the first configuration information after the first configuration information is obtained.
  • the method used by the wake-up signal in the current cell can then be dynamically determined.
  • the code length of the wake-up signal does not exceed a first preset value, and the number of repetitions of the wake-up signal does not exceed a second preset value.
  • the code length of the wake-up signal does not exceed the first preset value, which can be understood as the length of the information carried by the wake-up signal has certain limitations; the number of repetitions of the wake-up signal does not exceed the second preset value, which can be understood as the length of the information carried by the wake-up signal has certain limitations.
  • the first preset value or the second preset value may be defined by network configuration, pre-configuration or protocol.
  • the first preset value or the second preset value may be determined according to the capability of the terminal device.
  • the present application can avoid the terminal device from adopting too high a capability, so as to reduce the complexity of the terminal device.
  • the capability of the terminal device is that the code length of the supported wake-up signal exceeds the first preset value and/or the number of repetitions of the supported wake-up signal exceeds the second preset value.
  • the present application in order to improve coverage, can report its capabilities related to the code length of the wake-up signal and/or the number of repetitions of the wake-up signal to the network device through the terminal device, so that the network device can flexibly configure at least one of the code length of the wake-up signal and the number of repetitions of the wake-up signal according to the capabilities of the terminal device.
  • the present application provides a communication method, which takes the interaction between a network device and a terminal device as an example.
  • the network device may be a chip, a chip module, a communication module, etc.
  • the terminal device may be a chip, a chip module, a communication module, or a low-power receiver, etc., without specific limitation.
  • FIG3 is a flow chart of another communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the terminal device reports a first capability and/or a second capability, where the first capability includes a capability related to a code length of a wake-up signal, and the second capability includes a capability related to a number of repetitions of the wake-up signal.
  • the terminal device reports the first capability and/or the second capability through the primary radio, because the primary radio can report these capabilities through a signal/channel other than the low power consumption wake-up signal.
  • the network device receives the first capability and/or the second capability reported by the terminal device.
  • the present application can report the capabilities of the terminal device, which include the first capability and/or the second capability, so that the network device can obtain the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device based on the first capability and/or the second capability.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal according to the first capability and/or the second capability.
  • the network device can configure different code lengths of the wake-up signal.
  • the longer the code length the higher the complexity of the low-power receiver, which is reflected in the need to cache more soft bits; the shorter the code length, the lower the complexity of the low-power receiver, which is reflected in the need to cache fewer soft bits.
  • the network device can configure different repetition times of the wake-up signal. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of soft bit merging; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is greater, which is reflected in the number of soft bit merging.
  • the first capability does not exceed a first preset value
  • the second capability does not exceed a second preset value
  • the present application can avoid the terminal device from adopting too high a capability, so as to reduce the complexity of the terminal device.
  • the capability of the terminal device is that the code length of the supported wake-up signal exceeds the first preset value and/or the number of repetitions of the supported wake-up signal exceeds the second preset value.
  • the present application in order to improve coverage, can report its capabilities related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal to the network device through the terminal device, so that the network device can flexibly configure the code length of the wake-up signal and the number of repetitions of the wake-up signal according to the capabilities of the terminal device.
  • the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal can be understood as a value obtained by multiplying the code length of the wake-up signal by the number of repetitions of the wake-up signal, or a combination of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the network device can configure the code length of the wake-up signal and the number of repetitions of the wake-up signal to be ⁇ 2, 2 ⁇ , ⁇ 4, 1 ⁇ , etc. according to the product 4.
  • the code length is greater than 1, and when the number of repetitions of the wake-up signal is 1, it means no repetition.
  • the network device can configure the code length of the wake-up signal and the number of repetitions of the wake-up signal to be ⁇ 2, 4 ⁇ , ⁇ 4, 2 ⁇ , ⁇ 8, 1 ⁇ , etc. according to the product 8.
  • the code length is greater than 1, and when the number of repetitions of the wake-up signal is 1, it means no repetition.
  • Method 1-3 only requires one capability to achieve reporting, thereby saving network/signaling overhead.
  • the present application provides a communication method, which takes the interaction between a network device and a terminal device as an example.
  • the network device may be a chip, a chip module, a communication module, etc.
  • the terminal device may be a chip, a chip module, a communication module, or a low-power receiver, etc., without specific limitation.
  • FIG4 is a flow chart of another communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the terminal device reports a third capability, where the third capability includes a capability related to the product of a code length of the wake-up signal and a number of repetitions of the wake-up signal.
  • the terminal device reports the third capability through the main radio, because the main radio can report the third capability through a signal/channel other than the low power consumption wake-up signal.
  • the network device receives the third capability reported by the terminal device.
  • the present application can report the capabilities of the terminal device, which include the third capability, so that the network device can obtain the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device based on the first capability and/or the second capability.
  • the network device can flexibly configure the code length of the wake-up signal and the number of repetitions of the wake-up signal according to the third capability, reduce the capability combination of the terminal device, save signaling/network overhead, and reduce the type of terminal equipment.
  • the network device can configure different code lengths of the wake-up signal and different repetition times of the wake-up signal. Among them, if the code length is longer, the complexity of the low-power receiver is higher, which is reflected in the need to cache more soft bits; if the code length is shorter, the complexity of the low-power receiver is lower, which is reflected in the need to cache fewer soft bits. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of times the soft bits are merged; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is higher, which is reflected in the number of times the soft bits are merged.
  • the third capability does not exceed a third preset value.
  • the present application can avoid the terminal device from using too high a capability, so as to reduce the complexity of the terminal device. If the capability of the terminal device is that the product of the code length of the wake-up signal supported by the terminal device and the number of repetitions of the wake-up signal exceeds a third preset value.
  • a communication method since the network can support different terminal devices with different capabilities (capabilities related to the code length of the wake-up signal and/or capabilities related to the number of repetitions of the wake-up signal), if different terminal devices in a terminal device group report different capabilities, according to the current protocol, the network device can only send wake-up signals with the same configuration to wake up the terminal device group.
  • the network device may configure the wake-up signal according to the minimum capability. In this way, since the wake-up signal is configured according to the minimum capability, terminal devices with high capabilities may not match the configured wake-up signal, that is, the capability of the terminal device or terminal device group does not match the configured wake-up signal, thereby increasing network/system overhead.
  • Method 2-1 when the network supports different capabilities of different terminal devices in a terminal device group, the present application can configure the network with terminal devices or terminal device groups with different capabilities corresponding to different time-frequency resources, and different time-frequency resources are related to different wake-up signal code lengths and/or different wake-up signal repetition times, so as to carry different wake-up signals according to different time-frequency resources, avoid the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • different time-frequency resources are related to different wake-up signal code lengths and/or different wake-up signal repetition times, so as to carry different wake-up signals according to different time-frequency resources, avoid the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • FIG5 is a flow chart of another communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the network device determines a first time-frequency resource, where the first time-frequency resource is used to send a wake-up signal, and the first time-frequency resource is related to a code length of the wake-up signal and/or a number of repetitions of the wake-up signal.
  • the terminal device determines a first time-frequency resource, and the first time-frequency resource is used to receive the wake-up signal.
  • the present application may consider that the first time-frequency resource used to carry the wake-up signal is related to the code length of the wake-up signal and/or the number of repetitions of the wake-up signal.
  • the network device can send the wake-up signal on different first time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive the wake-up signal on different first time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • determining the first time-frequency resource may include:
  • the first time-frequency resource is determined according to the capability of the terminal device.
  • the network device/terminal device can determine the first time-frequency resource based on this capability.
  • the network device can send the wake-up signal on different first time-frequency resources according to the different capabilities of the terminal devices.
  • terminal devices with different capabilities can receive the wake-up signal on different first time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • determining the first time-frequency resource may include:
  • a first time-frequency resource is determined, where the first relationship includes an association between the first time-frequency resource and the code length of the wake-up signal and/or the number of repetitions of the wake-up signal.
  • the terminal device first reports its own capabilities. Then, the network device can send a wake-up signal on different first time-frequency resources according to the capabilities of the terminal device and the first relationship. Correspondingly, terminal devices with different capabilities can receive wake-up signals on different first time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the capability of the terminal device includes a first capability and/or a second capability
  • the first capability includes a capability related to the code length of the wake-up signal
  • the second capability includes a capability related to the number of repetitions of the wake-up signal
  • the terminal device first reports the first capability and/or the second capability. Then, the network device can send a wake-up signal on different first time-frequency resources according to the first capability and/or the second capability.
  • terminal devices with different capabilities can receive the wake-up signal on different first time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • FIG. 6 is a flow chart of another communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the network device determines a first relationship, where the first relationship includes an association between a first time-frequency resource and a code length of a wake-up signal and/or a number of repetitions of the wake-up signal, and the first time-frequency resource is used to send the wake-up signal.
  • the network device can configure the association between the first time-frequency resource and the code length of the wake-up signal and/or the number of repetitions of the wake-up signal to improve the configuration flexibility.
  • the network device can send the wake-up signal on different time-frequency resources according to the association.
  • terminal devices with different capabilities can receive the wake-up signal on different first time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • determining the first relationship may include:
  • the first relationship is determined according to the capability of the terminal device.
  • the terminal device first reports its own capabilities. Then, the network device can configure the association between the first time-frequency resource and the code length of the wake-up signal and/or the number of repetitions of the wake-up signal according to the capabilities of the terminal device. Finally, the network device can send the wake-up signal on different first time-frequency resources based on the first relationship.
  • terminal devices with different capabilities can receive wake-up signals on different first time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the capability of the terminal device includes a first capability and/or a second capability
  • the first capability includes a capability related to the code length of the wake-up signal
  • the second capability includes a capability related to the number of repetitions of the wake-up signal
  • the terminal device first reports the first capability and/or the second capability to the network device. Then, the network device can determine the first relationship according to the first capability and/or the second capability.
  • the terminal device reports the first capability and/or the second capability through the primary radio, because the primary radio can report these capabilities through a signal/channel other than the low power consumption wake-up signal.
  • Terminal devices or terminal device groups with different capabilities correspond to different time-frequency resources, and different time-frequency resources are related to the product of different wake-up signal code lengths and the number of repetitions of the wake-up signal, so that different wake-up signals are carried according to different time-frequency resources to avoid the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • different wake-up signals are carried according to different time-frequency resources to avoid the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • FIG. 7 is a flow chart of another communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the network device determines a second time-frequency resource, where the second time-frequency resource is used to send a wake-up signal, and the second time-frequency resource is related to the product of a code length of the wake-up signal and a number of repetitions of the wake-up signal.
  • the terminal device determines a second time-frequency resource, and the second time-frequency resource is used to receive the wake-up signal.
  • the present application may consider that the second time-frequency resource used to carry the wake-up signal is related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the network device can send the wake-up signal on different second time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive the wake-up signal on different second time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • determining the second time-frequency resource may include:
  • the second time-frequency resource is determined according to the capability of the terminal device.
  • the network device/terminal device can determine the second time-frequency resource based on this capability.
  • the network device can send the wake-up signal on different second time-frequency resources according to the different capabilities of the terminal devices.
  • terminal devices with different capabilities can receive the wake-up signal on different second time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • determining the second time-frequency resource may include:
  • the second time-frequency resource is determined according to the capability of the terminal device and the second relationship, where the second relationship includes an association relationship between the second time-frequency resource and the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the terminal device first reports its own capabilities. Then, the network device can send a wake-up signal on different second time-frequency resources according to the capabilities of the terminal device and the second relationship. Correspondingly, terminal devices with different capabilities can receive wake-up signals on different second time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the capability of the terminal device includes a third capability
  • the third capability includes a capability related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the terminal device first reports the third capability. Then, the network device can send a wake-up signal on different second time-frequency resources according to the third capability.
  • terminal devices with different capabilities can receive the wake-up signal on different second time-domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the terminal device reports the third capability through the main radio, because the main radio can report the third capability through a signal/channel other than the low power consumption wake-up signal.
  • FIG. 8 is a flow chart of another communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the network device determines a second relationship, where the second relationship includes an association relationship between a second time-frequency resource and a product of a code length of a wake-up signal and a number of repetitions of the wake-up signal, and the second time-frequency resource is used to send the wake-up signal.
  • the network device can configure the association relationship between the second time-frequency resource and the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal to improve the configuration flexibility.
  • the network device can send the wake-up signal on different second time-frequency resources according to the association relationship.
  • terminal devices with different capabilities can receive the wake-up signal on different second time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • determining the second relationship may include:
  • the second relationship is determined according to the capability of the terminal device.
  • the terminal device first reports its own capabilities. Then, the network device can configure the association relationship between the second time-frequency resource and the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal according to the capabilities of the terminal device. Finally, the network device can send the wake-up signal on different second time-frequency resources according to the second relationship.
  • terminal devices with different capabilities can receive wake-up signals on different second time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the capability of the terminal device includes a third capability
  • the third capability includes a capability related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the terminal device first reports the third capability to the network device. Then, the network device can determine the second relationship according to the third capability.
  • the terminal device reports the third capability through the main radio, because the main radio can report the third capability through a signal/channel other than the low power consumption wake-up signal.
  • the network device includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application can divide the network device into functional units according to the above method example.
  • each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.
  • FIG9 is a block diagram of functional units of a communication device according to an embodiment of the present application.
  • the communication device 900 includes: a sending unit 901 .
  • the sending unit 901 may be a module unit for sending signals, data, information, sequences, etc., and there is no specific limitation on this.
  • the communication device 900 may further include a processing unit.
  • the processing unit may be a processor or a controller, for example, a baseband processor, a baseband chip, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a processor.
  • Array field programmable gate array, FPGA or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processing unit can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of DSP and microprocessors, etc.
  • the communication device 900 may further include a storage unit, which is used to store computer program codes or instructions executed by the communication device 900.
  • the storage unit may be a memory.
  • the communication device 900 may be a chip or a chip module.
  • the sending unit 901 may be integrated into other units.
  • the sending unit 901 may be integrated into a communication unit.
  • the communication unit may be a communication interface, a transceiver, a transceiver circuit, etc.
  • the sending unit 901 is used to execute any step executed by the network device/chip/chip module/transmitter of the network device in the above method embodiment, which will be described in detail below.
  • the sending unit 901 is used to execute the steps in the above method embodiment, and when executing actions such as sending, other units can be selectively called to complete corresponding operations.
  • the sending unit 901 is used to send first configuration information, where the first configuration information includes at least one of a code length of a wake-up signal, a number of repetitions of the wake-up signal, and a length of the wake-up signal.
  • the present application introduces a first type of signal, which can be used to synchronize the low-power receiver to reduce the timing deviation or to wake up the device to achieve the purpose of network reachability. Then, the present application designs the first type of signal by processing the second part and/or the first part of the first type of signal.
  • the present application can implement at least one of the code length of the network configuration wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal through the first configuration information.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal according to different scenarios and needs, so as to improve the coverage of the wake-up signal by at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal.
  • the network device can configure different wake-up signal code lengths.
  • the longer the code length the higher the complexity of the low-power receiver, which is reflected in the need to cache more soft bits; the shorter the code length, the lower the complexity of the low-power receiver, which is reflected in the need to cache fewer soft bits.
  • the network device can configure different repetition times of the wake-up signal. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of soft bit merging; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is greater, which is reflected in the number of soft bit merging.
  • the network device can configure different wake-up signal lengths.
  • FIG10 is a block diagram of functional units of another communication device according to an embodiment of the present application.
  • the device 1000 includes: an acquisition unit 1001 .
  • the acquisition unit 1001 may be a module unit for acquiring signals, data, information, etc., and there is no specific limitation on this.
  • the communication device 1000 may further include a processing unit.
  • the processing unit may be a processor or a controller, such as a baseband processor, a baseband chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processing unit may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
  • the communication device 1000 may further include a storage unit, which is used to store computer program codes or instructions executed by the communication device 1000.
  • the storage unit may be a memory.
  • the communication device 1000 may be a chip or a chip module.
  • the acquisition unit 1001 may be integrated into other units.
  • the acquisition unit 1001 may be integrated in a communication unit.
  • the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.
  • the acquisition unit 1001 is used to execute any step executed by the terminal device/chip/chip module/receiver of the terminal device in the above method embodiment, which will be described in detail below.
  • the acquisition unit 1001 is used to execute the steps in the above method embodiment, and when executing actions such as sending, other units can be selectively called to complete corresponding operations.
  • the acquisition unit 1001 is used to acquire first configuration information, where the first configuration information includes at least one of a code length of a wake-up signal, a number of repetitions of the wake-up signal, and a length of the wake-up signal.
  • the present application can implement at least one of the code length of the network configuration wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal through the first configuration information.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal according to different scenarios and requirements.
  • the network device can configure different wake-up signal code lengths.
  • the longer the code length the higher the complexity of the low-power receiver, which is reflected in the need to cache more soft bits; the shorter the code length, the lower the complexity of the low-power receiver, which is reflected in the need to cache fewer soft bits.
  • the network device can configure different repetition times of the wake-up signal. If the number of repetitions of the wake-up signal is greater, the complexity of the low-power receiver is higher, which is reflected in the number of soft bit merging; if the number of repetitions of the wake-up signal is smaller, the complexity of the low-power receiver is greater, which is reflected in the number of soft bit merging.
  • the network device can configure different wake-up signal lengths.
  • FIG11 is a block diagram of functional units of another communication device according to an embodiment of the present application.
  • the device 1100 includes: a receiving unit 1101 .
  • the receiving unit 1101 may be a module unit for receiving signals, data, information, etc., and there is no specific limitation on this.
  • the communication device 1100 may further include a processing unit.
  • the processing unit may be a processor or a controller, such as a baseband processor, a baseband chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processing unit may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
  • the communication device 1100 may further include a storage unit for storing computer program codes or instructions executed by the communication device 1100.
  • the storage unit may be a memory.
  • the communication device 1100 may be a chip or a chip module.
  • the receiving unit 1101 may be integrated into other units.
  • the receiving unit 1101 may be integrated in a communication unit.
  • the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.
  • the receiving unit 1101 is used to execute any step executed by the network device/chip/chip module/transmitter of the network device in the above method embodiment, which will be described in detail below.
  • the receiving unit 1101 is used to execute the steps in the above method embodiment, and when performing actions such as sending, other units can be selectively called to complete corresponding operations.
  • the receiving unit 1101 is configured to receive a first capability and/or a second capability reported by a terminal device, wherein the first capability includes a capability related to a code length of a wake-up signal, and the second capability includes a capability related to a number of repetitions of the wake-up signal; or
  • the receiving unit 1101 is used to receive a third capability reported by a terminal device, where the third capability includes a capability related to a product of a code length of a wake-up signal and a number of repetitions of the wake-up signal.
  • the present application can report the capabilities of the terminal device, which include the first capability and/or the second capability, so that the network device can learn the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device based on the first capability and/or the second capability.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal based on the first capability and/or the second capability.
  • the present application can report the capabilities of the terminal device, which include the third capability, so that the network device can obtain the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device according to the first capability and/or the second capability.
  • the network device can flexibly configure the code length of the wake-up signal and the number of repetitions of the wake-up signal according to the third capability, reduce the capability combination of the terminal device, save signaling/network overhead, and reduce the types of terminal devices.
  • FIG12 is a block diagram of functional units of another communication device according to an embodiment of the present application.
  • the communication device 1200 includes: a reporting unit 1201 .
  • the reporting unit 1201 may be a module unit for reporting signals, data, information, etc., and there is no specific limitation on this.
  • the communication device 1200 may further include a processing unit.
  • the processing unit may be a processor or a controller, such as a baseband processor, a baseband chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processing unit may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
  • the communication device 1200 may further include a storage unit for storing computer program codes or instructions executed by the communication device 1200.
  • the storage unit may be a memory.
  • the communication device 1200 may be a chip or a chip module.
  • reporting unit 1201 may be integrated into other units.
  • the reporting unit 1201 may be integrated in a communication unit.
  • the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.
  • the reporting unit 1201 is used to execute any step executed by the terminal device/chip/chip module/receiver of the terminal device in the above method embodiment, which will be described in detail below.
  • reporting unit 1201 is used to execute the steps in the above method embodiment, and when executing actions such as sending, other units can be selectively called to complete corresponding operations.
  • the reporting unit 1201 is configured to report a first capability and/or a second capability, wherein the first capability includes a capability related to a code length of a wake-up signal, and the second capability includes a capability related to a number of repetitions of the wake-up signal; or
  • the reporting unit 1201 is used to receive a third capability reported by the terminal device, where the third capability includes a capability related to the product of a code length of the wake-up signal and a number of repetitions of the wake-up signal.
  • the present application can report the capabilities of the terminal device, which include the first capability and/or the second capability, so that the network device can learn the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device based on the first capability and/or the second capability.
  • the network device can flexibly configure at least one of the code length of the wake-up signal, the number of repetitions of the wake-up signal, and the length of the wake-up signal based on the first capability and/or the second capability.
  • the present application can report the capabilities of the terminal device, which include the third capability, so that the network device can obtain the capabilities related to the code length of the wake-up signal and/or the capabilities related to the number of repetitions of the wake-up signal supported by the terminal device according to the first capability and/or the second capability.
  • the network device can flexibly configure the code length of the wake-up signal and the number of repetitions of the wake-up signal according to the third capability, reduce the capability combination of the terminal device, save signaling/network overhead, and reduce the types of terminal devices.
  • FIG13 is a block diagram of functional units of another communication device according to an embodiment of the present application.
  • the communication device 1300 includes: a determining unit 1301 .
  • the determination unit 1301 may be a module unit for receiving signals, data, information, etc., and there is no specific limitation on this.
  • the communication device 1300 may further include a processing unit.
  • the processing unit may be a processor or a controller, for example, a baseband processor, a baseband chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It may implement or execute various exemplary logic blocks,
  • the processing unit may also be a combination of components that implement computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
  • the communication device 1300 may further include a storage unit for storing computer program codes or instructions executed by the communication device 1300.
  • the storage unit may be a memory.
  • the communication device 1300 may be a chip or a chip module.
  • the determination unit 1301 may be integrated into other units.
  • the determining unit 1301 may be integrated in a communication unit or a processing unit.
  • the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.
  • the determining unit 1301 is configured to execute any step executed by the network device/chip/chip module/transmitter of the network device in the above method embodiment, which will be described in detail below.
  • the determination unit 1301 is used to execute the steps in the above method embodiment, and when executing actions such as sending, other units may be selectively called to complete corresponding operations.
  • the determining unit 1301 is used to determine a first time-frequency resource or a first relationship; the first time-frequency resource is used to send a wake-up signal, and the first time-frequency resource is related to the code length of the wake-up signal and/or the number of repetitions of the wake-up signal; the first relationship includes an association relationship between the first time-frequency resource and the code length of the wake-up signal and/or the number of repetitions of the wake-up signal; or,
  • Determination unit 1301 is used to determine a second time-frequency resource or a second relationship; the second time-frequency resource is used to send a wake-up signal, and the second time-frequency resource is related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal; the second relationship includes an association relationship between the second time-frequency resource and the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the present application may consider that the first time-frequency resource used to carry the wake-up signal is related to the code length of the wake-up signal and/or the number of repetitions of the wake-up signal.
  • the terminal device can report its own capabilities regarding the code length of the wake-up signal and/or the number of repetitions of the wake-up signal
  • the network device can send the wake-up signal on different first time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive wake-up signals on different first time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the present application may consider that the second time-frequency resource used to carry the wake-up signal is related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the terminal device can report its own capabilities related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal
  • the network device can send the wake-up signal on different second time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive wake-up signals on different second time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • FIG14 is a block diagram of functional units of another communication device according to an embodiment of the present application.
  • the communication device 1400 includes: a determining unit 1401 .
  • the determination unit 1401 may be a module unit for receiving signals, data, information, etc., and there is no specific limitation on this.
  • the communication device 1400 may further include a processing unit.
  • the processing unit may be a processor or a controller, such as a baseband processor, a baseband chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processing unit may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
  • the communication device 1400 may further include a storage unit for storing computer program codes or instructions executed by the communication device 1400.
  • the storage unit may be a memory.
  • the communication device 1400 may be a chip or a chip module.
  • the determination unit 1401 may be integrated into other units.
  • the determining unit 1401 may be integrated in a communication unit or a processing unit.
  • the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.
  • the determining unit 1401 is configured to execute any step executed by the terminal device/chip/chip module/receiver of the terminal device in the above method embodiment, which will be described in detail below.
  • the determining unit 1401 is used to execute the steps in the above method embodiment, and when executing actions such as sending, other units may be selectively called to complete corresponding operations.
  • the determining unit 1401 is configured to determine a first time-frequency resource, where the first time-frequency resource is used to receive a wake-up signal, and the first time-frequency resource is related to a code length of the wake-up signal and/or a number of repetitions of the wake-up signal; or,
  • the determination unit 1401 is used to determine a second time-frequency resource, where the second time-frequency resource is used to receive a wake-up signal, and the second time-frequency resource is related to the product of a code length of the wake-up signal and a number of repetitions of the wake-up signal.
  • the present application may consider that the first time-frequency resource used to carry the wake-up signal is related to the code length of the wake-up signal and/or the number of repetitions of the wake-up signal.
  • the terminal device can report its own capabilities regarding the code length of the wake-up signal and/or the number of repetitions of the wake-up signal
  • the network device can send the wake-up signal on different first time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive wake-up signals on different first time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the present application may consider that the second time-frequency resource used to carry the wake-up signal is related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal.
  • the terminal device can report its own capabilities related to the product of the code length of the wake-up signal and the number of repetitions of the wake-up signal
  • the network device can send the wake-up signal on different second time-frequency resources according to the different capabilities of the terminal device.
  • terminal devices with different capabilities can receive wake-up signals on different second time domain resources, thereby avoiding the problem of mismatch between the capabilities of the terminal device or the terminal device group and the wake-up signal, so as to reduce network/system overhead.
  • the network device 1500 may include a processor 1510 , a memory 1520 , and a communication bus for connecting the processor 1510 and the memory 1520 .
  • the memory 1520 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or portable read-only memory (CD-ROM), and the memory 1520 is used to store the program code executed by the network device 1500 and the data transmitted.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • CD-ROM portable read-only memory
  • the network device 1500 further includes a communication interface for receiving and sending data.
  • the processor 1510 may be one or more central processing units (CPUs).
  • the central processing unit (CPU) may be a single-core central processing unit (CPU) or a multi-core central processing unit (CPU).
  • the processor 1510 may be a baseband chip, a chip, a central processing unit (CPU), a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • transistor logic device a hardware component or any combination thereof.
  • the processor 1510 in the network device 1500 is used to execute the computer program or instruction 1521 stored in the memory 1520 to perform the corresponding steps of the method embodiment shown above, which will not be repeated here.
  • the terminal device 1600 may include a processor 1610 , a memory 1620 , and a communication bus for connecting the processor 1610 and the memory 1620 .
  • the memory 1620 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or portable read-only memory (CD-ROM), and is used to store the program code executed by the terminal device 1600 and the transmitted data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • CD-ROM portable read-only memory
  • the terminal device 1600 also includes a communication interface for receiving and sending data.
  • the processor 1610 may be one or more central processing units (CPUs).
  • CPUs central processing units
  • the central processing unit (CPU) may be a single-core central processing unit (CPU) or a multi-core central processing unit (CPU).
  • the processor 1610 may be a baseband chip, a chip, a central processing unit (CPU), a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • transistor logic device a hardware component or any combination thereof.
  • the processor 1610 in the terminal device 1600 is used to execute the computer program or instruction 1621 stored in the memory 1620 and execute the corresponding steps of the method embodiment shown above, which will not be repeated here.
  • the above method embodiment can be applied to or in a network device. That is, the execution subject of the above method embodiment can be a network device, a chip, a chip module, a module or a transmitter of a network device, etc., and no specific limitation is made to this.
  • An embodiment of the present application also provides a chip, including a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.
  • An embodiment of the present application also provides a chip module, including a transceiver component and a chip, the chip including a processor, a memory and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.
  • An embodiment of the present application also provides a computer-readable storage medium storing a computer program or instructions, which implements the steps described in the above method embodiment when executed.
  • the embodiment of the present application also provides a computer program product, including a computer program or instructions, which implement the steps described in the above method embodiment when executed.
  • An embodiment of the present application also provides a communication system, including the above-mentioned network device and terminal device.
  • the steps of the method or algorithm described in the embodiments of the present application can be implemented in hardware or by executing software instructions by a processor.
  • the software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disks, mobile hard disks, read-only compact disks (CD-ROMs) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium can also be a component of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the ASIC can be located in a terminal device or a management device.
  • the processor and the storage medium can also exist in a terminal device or a management device as discrete components.
  • the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a digital video disc (DVD)
  • DVD digital video disc
  • SSD solid state disk
  • the modules/units included in the devices and products described in the above embodiments may be software modules/units or hardware modules/units, or may be partially software modules/units and partially hardware modules/units.
  • the modules/units included therein may all be implemented in the form of hardware such as circuits, or at least some of the modules/units may be implemented in the form of software programs, which run on the processor integrated inside the chip, and the remaining (if any) modules/units may be implemented in the form of hardware such as circuits;
  • the modules/units included therein may all be implemented in the form of hardware such as circuits, and different modules/units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented in the form of software programs,
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) modules/units can

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande relève du domaine technique des communications et divulgue un procédé et un appareil de communication, ainsi qu'un dispositif réseau et un dispositif terminal. Le procédé comprend les étapes suivantes : un dispositif réseau envoie des premières informations de configuration, les premières informations de configuration comprenant une longueur de code d'un signal de réveil et/ou le nombre de répétitions du signal de réveil et/ou la longueur du signal de réveil ; et de manière correspondante, un dispositif terminal reçoit les premières informations de configuration. Par conséquent, selon la présente demande, la configuration de la longueur de code du signal de réveil et/ou du nombre de répétitions du signal de réveil et/ou de la longueur du signal de réveil pour un réseau peut être obtenue d'après les premières informations de configuration. De cette manière, le dispositif réseau peut configurer de manière flexible la longueur de code du signal de réveil et/ou le nombre de répétitions du signal de réveil et/ou la longueur du signal de réveil selon différents scénarios et exigences, de façon à améliorer la couverture du signal de réveil d'après la longueur de code du signal de réveil et/ou le nombre de répétitions du signal de réveil et/ou la longueur du signal de réveil.
PCT/CN2024/110947 2023-08-10 2024-08-09 Procédé et appareil de communication, dispositif réseau et dispositif terminal Pending WO2025031473A1 (fr)

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