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WO2024170589A1 - Procédé de radiomessagerie pour économie d'énergie de réseau - Google Patents

Procédé de radiomessagerie pour économie d'énergie de réseau Download PDF

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Publication number
WO2024170589A1
WO2024170589A1 PCT/EP2024/053666 EP2024053666W WO2024170589A1 WO 2024170589 A1 WO2024170589 A1 WO 2024170589A1 EP 2024053666 W EP2024053666 W EP 2024053666W WO 2024170589 A1 WO2024170589 A1 WO 2024170589A1
Authority
WO
WIPO (PCT)
Prior art keywords
paging
signaling
macro
network
wireless communication
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/EP2024/053666
Other languages
English (en)
Inventor
Rikin SHAH
David GONZALEZ GONZALEZ
Reuben GEORGE STEPHEN
Andreas Andrae
Hojin Kim
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.)
Aumovio Germany GmbH
Original Assignee
Continental Automotive Technologies GmbH
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 Continental Automotive Technologies GmbH filed Critical Continental Automotive Technologies GmbH
Priority to CN202480012224.6A priority Critical patent/CN120615329A/zh
Publication of WO2024170589A1 publication Critical patent/WO2024170589A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • 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 disclosure relates to in wireless networks, and more particularly to methods and apparatus for Paging Enhancement for Network Energy Saving.
  • US 2021368378 A1 discloses a communication technique for combining, with an loT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and to a system therefor.
  • the present disclosure may be applied to intelligent services (e.g., a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, security and safety-related service, etc.), based on a 5G communication technology and an loT-related technology.
  • a method for a user equipment in a first communication system comprises steps in which a user equipment in an inactive state: transmits a paging area update request message; checks whether or not a timer associated with a paging area update has expired; and transitions into an idle state if a response message for the paging area update request message has not been received until the timer has expired.
  • US 2022110106 A1 discloses an apparatus comprising: comprising at least a first SIM associated with a first network and a second SIM associated with the first or a second network, wherein the first SIM is configured to operate in an idle or an inactive mode of a RRC while the second SIM configured to temporarily operate in a connected mode of the RRC and vice versa; means for allocating a radio transceiver of the apparatus for a communication of the first SIM and the second SIM for alternative active periods, wherein the first SIM is configured to at least monitor paging messages during its active periods and the second SIM is configured to at least perform beam management operations during its active periods; means for monitoring a number of scheduled beam management operations of the second SIM skipped during the active periods of the radio transceiver allocated for the first SIM; means for determining, based on at least data from the performed beam management operations, a threshold value for the skipped beam management operations; and means for adjusting, in response to the number of the skipped beam management operations reaching the threshold value, allocation of the active periods of the radio transceiver
  • US 2018324751 A1 discloses a wireless device which may receive a compressed paging message broadcast from a base station, and transmit a connection request in response.
  • the wireless device may include a paging response indication (e.g., indicating the connection request results from a received, false or genuine, paging request) and a wireless device identification (e.g., a UE ID) into the modified connection request.
  • the base station may identify the connection request is in response to a paging broadcast by receiving the paging response indication, and determine if the connection request occurred in response to a false paging alert by comparing the received UE ID to the uncompressed paging request message list. If a match is found, the base station may transmit a connection establishment request. If a match is not found the base station may transmit a connection rejection message to the wireless device.
  • WO 2022011634 A1 discloses a method and a device for determining paging location or camping location.
  • the method includes: determining information of a first location on which the UE camps or receives a paging message, wherein the information of the first location indicates a location of a bandwidth part (BWP) or a beam; and camping on or receiving the paging message on a corresponding BWP or beam according to the information of the first location.
  • BWP bandwidth part
  • US 2020322919 A1 discloses the apparatus of wireless communication may be a UE or a base station.
  • the UE may determine a motion state of the UE that indicates a lack of motion, and transmit a request to the BS to perform a single beam paging based on determining that the motion state indicates the lack of motion.
  • the UE may enter RRC inactive state or the RRC idle state and monitor for a page from the BS based on a single beam.
  • the BS may receive the request to perform the single beam paging, and page the UE using the single beam.
  • the UE in the RRC inactive state or the RRC idle state may transmit a request to perform the beam sweeping paging to the BS based on detecting a motion of the UE, and the BS may page the UE using multiple beams.
  • US 2021274466 A1 discloses new radio channel designs incorporate a synchronization signal burst series frame structure, with higher layer channels mapped to physical channels transmitted during a synchronization signal, allowing user equipment to select beams during which to listen for paging information.
  • a physical common control channel configuration information element may be used to signal the paging configuration as part of the System Information. Paging may occur with or without user equipment assistance.
  • US 2019306829 A1 discloses a first RAN may determine beamforming information for a UE served by the first RAN. Then, the first RAN may transmit, to a second RAN or a core network, paging information for the UE served by the first RAN, wherein the paging information comprises the beamforming information for the UE.
  • a core network component e.g., an AMF, may receive the paging information comprising the beamforming information for the UE and may send a paging request to a second RAN for the transmission of a paging message to the UE, wherein the paging request is based on the received paging information.
  • the second RAN may receive, from the first RAN or from the core network, paging information for the UE comprising beamforming assistance information for the UE. The second RAN may then transmit a paging message to the UE based on the beamforming assistance information.
  • US 2022046582 A1 discloses targeting paging reduction to improve upon power consumption performance for the user equipment in wireless networks.
  • the methods and systems are disclosed where indication signal is applied for idle/inactive mode UEs.
  • an indication signal is introduced for idle/inactive mode UEs for paging reception.
  • the group of UEs may be divided into plurality of paging sub-groups of UEs having common paging occasion and each paging sub-group be assigned a paging sub-group ID. This paging sub-group ID may be incorporated in the indicating signal to reduce paging reception.
  • the indicating signal may indicate presence or absence of paging DCI for a UE/or a paging sub-group identity of UE/UEs.
  • Paging can be described as UE wakes up according to paging cycle, UE checks paging message in specific time (PO and PF), Identifying impact when cell has enabled energy saving functionality
  • a device when a device does not have any ongoing data transmissions, it enters an IDLE state in order to preserve battery. If new data arrives for the device, the network probes the IDLE device by sending a so-called "paging" message and the device correspondingly responds.
  • This procedure which is aptly called the paging procedure, works because even while in the IDLE state, the device keeps monitoring for the paging message at certain device-specific times. The device is able to preserve battery because, at other times, it may apply what is called “discontinuous reception” or DRX, meaning that it can switch off its receiver.
  • DRX discontinuous reception
  • the paging procedure is controlled by a core network and exists in all generations of mobile networks (2G, 3G, 4G, and 5G).
  • 2G, 3G, 4G, and 5G One of new things in 5G is that this paging procedure can also be controlled by a radio access network to some extent for devices in a special state, called the INACTIVE state.
  • the device-specific times, at which the device switches on its receiver and checks for a paging message, are determined by what are called Paging Frame (PF) and Paging Occasion (PO).
  • PF Paging Frame
  • PO Paging Occasion
  • the PF is a radio frame which may contain one or multiple POs for a set of devices.
  • the PO is the specific time instant where the network can transmit the paging message for a subset of devices corresponding to the same PF.
  • paging identifier an identifier of the paged device, called paging identifier.
  • paging identifier an identifier of the paged device
  • BS Small Base Station
  • SL UE When small BS enabled DTX functionality or Macro BS sends status of gNB to UEs, which wake up to monitor paging message.
  • the method is characterized by, that L1/L2 signaling is used to carry information regarding status of the small BS.
  • the method is characterized by wherein based on the indication from SL UE and/or Macro BS, UE will either not monitor or skip paging message on specific time where time period can be also indicated in the L1/L2 signaling.
  • the method is characterized by, for L1 signaling 1 bit is used for signaling.
  • the method is characterized by, that for L2 signaling a LCID is used in the MAC CE.
  • the method is characterized by, wherein based on such indication from SL UE and/or Macro BS, UE will either not monitor or skip paging message on specific time where time period can be also indicated in the L1/L2 signaling.
  • the present disclosure relates to an apparatus for Paging for Network Energy saving in a wireless communication network to a wireless network node, apparatus comprising a processor coupled to a memory comprising computer program instructions stored thereon, processor being configured by instructions to perform the following the method according to the first aspect of this disclosure.
  • the present disclosure relates to a wireless network node comprising apparatus according to the second aspect comprising a processor coupled to a memory comprising computer program instructions stored thereon, said processor being configured by said instructions to perform the method according to the claims the first aspect of this disclosure.
  • the present disclosure relates to a wireless communication system comprising a wireless network node according to the third aspect of this disclosure.
  • the present disclosure relates to a computer program product comprising instructions for implementing a method according to the first aspect and/or instructions according the first aspect, when the program is executed by a processor.
  • the present disclosure relates to a non-transitory computer-readable storage medium comprising computer program instruction stored thereon for implementing a method for Paging for Network Energy Saving in a wireless communication network according the first aspect.
  • RRCJNACTIVE & RRCJDLE UE receive the status of current cell whether it has enabled energy saving (DTX: Discontinuous transmission) functionality or not.
  • UE receives indication through Macro Base Station (BS) or Sidelink (SL) UE.
  • BS Base Station
  • SL Sidelink
  • small BS When small BS has enabled DTX functionality, it indicates status to Macro BS and/or SL UE.
  • SL UE or Macro BS sends status of gNB to UEs which wake up to monitor paging message.
  • L1/L2 signaling is used to carry information regarding status of small BS. For example, L1 signaling: 1 bit is used for this purpose.
  • L2 signaling a new LCID is used in the MAC CE.
  • UE Based on such indication from SL UE and/or Macro BS, UE will either not monitor or skip paging message on specific time where time period can be also indicated in the L1/L2 signaling. Beneficially, UE can save power by skipping monitoring of paging message,
  • An aspect of the disclosure relates to a wireless communication system comprising a wireless network node and a wireless network node as describer hereinabove.
  • steps of the methods described hereinabove are determined by computer program instructions.
  • an embodiment of the present disclosure relates to a computer program stored on an information medium, said program being suitable to be implemented in user equipment device and/or a wireless network node, or more generally in a computer, said program comprising instructions configured to implement steps of the method for updating discontinuous reception by a wireless device and/or of the method for configuring discontinuous reception in a wireless device which has just been described.
  • the program can use any programming language, and be in the form of source code, object code, or of code intermediate between source code and object code, such as in a partially compiled form, or in any other desirable form.
  • a further aspect contemplates a computer-readable information medium comprising computer program instructions for implementing steps of the methods mentioned hereinabove.
  • the information medium may be any entity or device capable of storing the program.
  • the medium can comprise a storage means, such as a ROM, for example a CD ROM or a microelectronic circuit ROM, FLASH memory or any magnetic recording means, for example a hard drive.
  • the information medium may be a transmissible medium such as an electrical or optical signal, which may be conveyed via an electrical or optical cable, by radio or by other means.
  • the information medium may be an integrated circuit into which the program is incorporated, the circuit being adapted to execute or to be used in the execution of the methods in question.
  • Fig. 1 shows example of the main idea
  • Fig. 2 shows the UE flow chart
  • Fig. 3 shows the flow of gNB
  • a more general term “network node” may be used and may correspond to any type of radio network node or any network node, which communicates with a UE (directly or via another node) and/or with another network node.
  • network nodes are NodeB, MeNB, ENB, a network node belonging to MCG or SCG, base station (BS), multi-standard radio (MSR) radio node such as MSR BS, eNodeB, gNodeB, network controller, radio network controller (RNC), base station controller (BSC), relay, donor node controlling relay, base transceiver station (BTS), access point (AP), transmission points, transmission nodes, RRU, RRH, nodes in distributed antenna system (DAS), core network node (e.g.
  • MSC Mobile Switching Center
  • MME Mobility Management Entity
  • O&M Operations & Maintenance
  • OSS Operations Support System
  • SON Self Optimized Network
  • positioning node e.g. Evolved- Serving Mobile Location Centre (E-SMLC)
  • E-SMLC Evolved- Serving Mobile Location Centre
  • MDT Minimization of Drive Tests
  • test equipment physical node or software
  • the non-limiting term user equipment (UE) or wireless device may be used and may refer to any type of wireless device communicating with a network node and/or with another UE in a cellular or mobile communication system.
  • UE are target device, device to device (D2D) UE, machine type UE or UE capable of machine to machine (M2M) communication, PDA, PAD, Tablet, mobile terminals, smart phone, laptop embedded equipped (LEE), laptop mounted equipment (LME), USB dongles, UE category Ml, UE category M2, ProSe UE, V2V UE, V2X UE, etc.
  • terminologies such as base station/gNodeB and UE should be considered non-limiting and do in particular not imply a certain hierarchical relation between the two; in general, “gNodeB” could be considered as device 1 and “UE” could be considered as device 2 and these two devices communicate with each other over some radio channel. And in the following the transmitter or receiver could be either gNodeB (gNB), or UE.
  • gNB gNodeB
  • embodiments may be embodied as a system, apparatus, method, or program product. Accordingly, embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc.) or an embodiment combining software and hardware aspects.
  • the disclosed embodiments may be implemented as a hardware circuit comprising custom very-large-scale integration (“VLSI”) circuits or gate arrays, off- the-shelf semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI very-large-scale integration
  • the disclosed embodiments may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, or the like.
  • the disclosed embodiments may include one or more physical or logical blocks of executable code which may, for instance, be organized as an object, procedure, or function.
  • embodiments may take the form of a program product embodied in one or more computer readable storage devices storing machine readable code, computer readable code, and/or program code, referred hereafter as code.
  • the storage devices may be tangible, non- transitory, and/or non-transmission.
  • the storage devices may not embody signals. In a certain embodiment, the storage devices only employ signals for accessing code
  • the computer readable medium may be a computer readable storage medium.
  • the computer readable storage medium may be a storage device storing the code.
  • the storage device may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • a storage device More specific examples (a non-exhaustive list) of the storage device would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random-access memory (“RAM”), a read-only memory (“ROM”), an erasable programmable read-only memory (“EPROM” or Flash memory), a portable compact disc readonly memory (“CD-ROM”), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • a computer readable storage medium may be any tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device.
  • Code for carrying out operations for embodiments may be any number of lines and may be written in any combination of one or more programming languages including an object- oriented programming language such as Python, Ruby, Java, Smalltalk, C++, or the like, and conventional procedural programming languages, such as the “C” programming language, or the like, and/or machine languages such as assembly languages.
  • the code may execute entirely on the user’s computer, partly on the user’s computer, as a stand-alone software package, partly on the user’s computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer may be connected to the user’s computer through any type of network, including a local area network (“LAN”), wireless LAN (“WLAN”), or a wide area network (“WAN”), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider (“ISP”)).
  • LAN local area network
  • WLAN wireless LAN
  • WAN wide area network
  • ISP Internet Service Provider
  • the code may also be stored in a storage device that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the storage device produce an article of manufacture including instructions which implement the function/act specified in the flowchart diagrams and/or block diagrams.
  • the code may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus, or other devices to produce a computer implemented process such that the code which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart diagrams and/or block diagrams.
  • each block in the flowchart diagrams and/or block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions of the code for implementing the specified logical function(s).
  • the functions noted in the block may occur out of the order noted in the Figures.
  • two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.
  • Other steps and methods may be conceived that are equivalent in function, logic, or effect to one or more blocks, or portions thereof, of the illustrated Figures.
  • the RAN may send data to the UEs (downlink, DL), for instance data received from a core network (CN).
  • the RAN may also receive data from the UEs (uplink, UL), which data may be forwarded to the CN.
  • the RAN comprises one base station, BS.
  • the RAN may comprise more than one BS to increase the coverage of the wireless communication system.
  • Each of these BSs may be referred to as NB, eNodeB (or eNB), gNodeB (or gNB, in the case of a 5G NR wireless communication system), an access point or the like, depending on the wireless communication standard(s) implemented.
  • the UEs are located in a coverage of the BS.
  • the coverage of the BS corresponds for example to the area in which UEs can decode a PDCCH transmitted by the BS.
  • An example of a wireless device suitable for implementing any method, discussed in the present disclosure, performed at a UE corresponds to an apparatus that provides wireless connectivity with the RAN of the wireless communication system, and that can be used to exchange data with said RAN.
  • a wireless device may be included in a UE.
  • the UE may for instance be a cellular phone, a wireless modem, a wireless communication device, a handheld device, a laptop computer, or the like.
  • the UE may also be an Internet of Things (loT) equipment, like a wireless camera, a smart sensor, a smart meter, smart glasses, a vehicle (manned or unmanned), a global positioning system device, etc., or any other equipment that may run applications that need to exchange data with remote recipients, via the wireless device.
  • LoT Internet of Things
  • the wireless device comprises one or more processors and one or more memories.
  • the one or more processors may include for instance a central processing unit (CPU), a digital signal processor (DSP), a field-programmable gate array (FPGA), an application specific integrated circuit (ASIC), etc.
  • the one or more memories may include any type of computer readable volatile and non-volatile memories (magnetic hard disk, solid-state disk, optical disk, electronic memory, etc.).
  • the one or more memories may store a computer program product, in the form of a set of program-code instructions to be executed by the one or more processors to implement all or part of the steps of a method for exchanging data, performed at a UE’s side, according to any one of the embodiments disclosed herein.
  • the wireless device can comprise also a main radio, MR, unit.
  • the MR unit corresponds to a main wireless communication unit of the wireless device, used for exchanging data with BSs of the RAN using radio signals.
  • the MR unit may implement one or more wireless communication protocols, and may for instance be a 3G, 4G, 5G, NR, WiFi, WiMax, etc. transceiver or the like.
  • the MR unit corresponds to a 5G NR wireless communication unit.
  • Narrowband Internet of things is a low-power wide-area network (LPWAN) radio technology standard developed by 3GPP for cellular devices and services. The specification was frozen in 3GPP Release 13 (LTE Advanced Pro), in June 2016. Other 3GPP loT technologies include eMTC (enhanced Machine-Type Communication) and EC-GSM-loT.
  • NB-loT focuses specifically on indoor coverage, low cost, long battery life, and high connection density.
  • NB-loT uses a subset of the LTE standard, but limits the bandwidth to a single narrow-band of 200kHz. It uses OFDM modulation for downlink communication and SC-FDMA for uplink communications. loT applications which require more frequent communications will be better served by NB-loT, which has no duty cycle limitations operating on the licensed spectrum.
  • Mobile aerial nodes provide reference location, flight path, and speed information, -“node type” indicator (vehicle, aerial, drone, etc.), node-specific beam pattern data (e.g., angular sector range, sector tilting, granularity).
  • -“node type” indicator vehicle, aerial, drone, etc.
  • node-specific beam pattern data e.g., angular sector range, sector tilting, granularity
  • FIG. 1 shows example of the main idea
  • Fig. 2 shows the UE flow chart.
  • UE receives cell off indication from macro BS or SL UE. If the indication is correct the UE skips current paging monitoring cycle if paging monitoring duration overlapps with cell off period.
  • Fig. 3 shows the flow of gNB.
  • Macro BS receives cell off indication from small BS. If the indication is correct the the macro BS sends cell off indication to the UEs.
  • Discontinuous reception is a processing mode in a user equipment that aims at reducing power consumption.
  • a user equipment When using DRX, a user equipment periodically enters an active state (also referred as active time period, downlink monitoring period, or ON duration) to receive downlink data and signaling and then enters a sleep state (also referred as inactive state, inactive time period, or OFF duration) to stop monitoring on downlink data.
  • an active state also referred as active time period, downlink monitoring period, or ON duration
  • a sleep state also referred as inactive state, inactive time period, or OFF duration
  • the DRX cycle is periodically repeated, leading to several ON durations noted A1 , A2 and A3 separated by inactive time periods.
  • DRX is configured by the base station using RRC (Radio Resource Control) signaling, e.g. RRC ConnectionReconfiguration or RRC Connection Setup.
  • RRC Radio Resource Control
  • DRX parameters may include:
  • - drx-onDurationTimer the time during which user equipment should stay active after it wakes up (referenced as “Active Time”). During this period, user equipment should monitor a physical downlink channel (e.g., PDCCH).
  • PDCCH physical downlink channel
  • this parameter corresponds to the delay during which the user equipment should remain in active state after being scheduled.
  • RRCJNACTIVE & RRCJDLE UE receive the status of current cell whether it has enabled energy saving (DTX: Discontinuous transmission) functionality or not. UE receives indication through Macro Base Station (BS) or Sidelink (SL) UE. When small BS has enabled DTX functionality, it indicates status to Macro BS and/or SL UE. SL UE or Macro BS sends status of gNB to UEs which wake up to monitor paging message. L1/L2 signaling is used to carry information regarding status of small BS.
  • L1 signaling 1 bit is used for this purpose.
  • L2 signaling new LCID is used in the MAC CE.
  • UE Based on such indication from SL UE and/or Macro BS, UE will either not monitor or skip paging message on specific time where time period can be also indicated in the L1/L2 signaling.

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

Abstract

Un procédé de radiomessagerie pour une économie d'énergie de réseau dans un réseau de communication sans fil, dans lequel une petite station de base (BS) indique un état à un UE de macro BS et/ou SL lorsqu'une fonctionnalité DTX activée par petite BS ou qu'une macro BS envoie un état de gNB à des UE, qui se réveillent pour surveiller un message de radiomessagerie.
PCT/EP2024/053666 2023-02-15 2024-02-14 Procédé de radiomessagerie pour économie d'énergie de réseau Pending WO2024170589A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480012224.6A CN120615329A (zh) 2023-02-15 2024-02-14 用于网络节能的寻呼的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023201309 2023-02-15
DE102023201309.6 2023-02-15

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WO2024170589A1 true WO2024170589A1 (fr) 2024-08-22

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