WO2022082541A1 - Augmentation de capacité basée sur plate-forme aéroportée - Google Patents

Augmentation de capacité basée sur plate-forme aéroportée Download PDF

Info

Publication number
WO2022082541A1
WO2022082541A1 PCT/CN2020/122607 CN2020122607W WO2022082541A1 WO 2022082541 A1 WO2022082541 A1 WO 2022082541A1 CN 2020122607 W CN2020122607 W CN 2020122607W WO 2022082541 A1 WO2022082541 A1 WO 2022082541A1
Authority
WO
WIPO (PCT)
Prior art keywords
ues
group
information
cell
coverage area
Prior art date
Application number
PCT/CN2020/122607
Other languages
English (en)
Inventor
Xiang Xu
Jeroen Wigard
Tzu-Chung Frank Hsieh
Original Assignee
Nokia Shanghai Bell Co., Ltd.
Nokia Solutions And Networks Oy
Nokia Technologies Oy
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 Nokia Shanghai Bell Co., Ltd., Nokia Solutions And Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co., Ltd.
Priority to CN202080106423.5A priority Critical patent/CN116326190B/zh
Priority to PCT/CN2020/122607 priority patent/WO2022082541A1/fr
Publication of WO2022082541A1 publication Critical patent/WO2022082541A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502—Airborne stations
    • H04B7/18504—Aircraft used as relay or high altitude atmospheric platform
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • 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
    • H04W84/06—Airborne or Satellite Networks
    • 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

  • Example embodiments of the present disclosure generally relate to the field of communications, and in particular, to devices, methods, apparatuses and computer readable storage media for capacity boosting based on an airborne platform.
  • a High Altitude Platform Station is a station operating on a stratospheric airborne platform to provide a telecommunication infrastructure for rural and remote areas.
  • the HAPS may operate at an altitude between 20 km to 50 km to cover a service area up to 800,000 square kilometers with a diameter of 1,000 km.
  • the HAPS may be deployed on a balloon or solar powered high-altitude plane.
  • a HAPS-based architecture can be implemented on balloons to provide Long Term Evolution (LTE) coverage.
  • LTE Long Term Evolution
  • the study item (SI) /work item (WI) with respect to a Non-Terrestrial Network (NTN) involves HAPS related issues in the 3rd Generation Partnership Project (3GPP) , which additionally covers Low Earth Orbit (LEO) and Geostationary Orbit (GEO) satellites.
  • 3GPP 3rd Generation Partnership Project
  • LEO Low Earth Orbit
  • GEO Geostationary Orbit
  • the HAPS related issues under discussion are mainly concerned about co-existence with terrestrial networks.
  • a HAPS may function as an analogue radio frequency (RF) repeater between user equipment (UE) and a New Radio (NR) NodeB (gNB) .
  • the HAPS may alternatively function as a gNB or at least a part of the gNB.
  • a distributed unit (DU) of the gNB gNB-DU
  • a central unit (CU) of the gNB gNB-CU
  • a HAPS can host a plurality of cells that can be activated or inactivated when needed.
  • example embodiments of the present disclosure provide devices, methods, apparatuses and computer readable storage media for capacity boosting based on an airborne platform.
  • a device which comprises at least one processor and at least one memory including computer program code.
  • the at least one memory and the computer program code are configured to, with the at least one processor, cause the device to obtain clustering information of a group of UEs.
  • the device is further caused to determine, based on the clustering information, an action to be performed.
  • the action comprises activating a new cell to serve the group of UEs via an airborne platform, adjusting a coverage area of an existing cell to serve the group of UEs via the airborne platform, or sending the clustering information of the group of UEs to a neighboring device.
  • a device which comprises at least one processor and at least one memory including computer program code.
  • the at least one memory and the computer program code are configured to, with the at least one processor, cause the device to receive, from a further device, an indication of activating a new cell or adjusting a coverage area of an existing cell, to serve a group of UEs via an airborne platform.
  • the device is further caused to activate the new cell or adjust the coverage area of the existing cell based on the received indication.
  • a method is provided.
  • clustering information of a group of UEs is obtained.
  • An action to be performed is determined based on the clustering information.
  • the action comprises activating a new cell to serve the group of UEs via an airborne platform, adjusting a coverage area of an existing cell to serve the group of UEs via the airborne platform, or sending the clustering information of the group of UEs to a neighboring device.
  • a method is provided.
  • an indication of activating a new cell or adjusting a coverage area of an existing cell is received from a further device to serve a group of UEs via an airborne platform. Based on the received indication, the new cell is activated, or the coverage area of the existing cell is adjusted.
  • an apparatus comprising means for performing the method according to the third or fourth aspect.
  • a computer readable storage medium comprising program instructions stored thereon. The instructions, when executed by a processor of a device, cause the device to perform the method according to the third or fourth aspect.
  • FIGS. 1 (a) , 1 (b) and 1 (c) illustrate example scenarios of cell activation by a HAPS
  • FIG. 2 illustrates an example environment in which example embodiments of the present disclosure can be implemented
  • FIG. 3 illustrates example cell activation according to some example embodiments of the present disclosure
  • FIG. 4 illustrates a flowchart of an example method according to some example embodiments of the present disclosure
  • FIG. 5 illustrates a flowchart of an example method according to some other example embodiments of the present disclosure
  • FIGS. 6 (a) , 6 (b) and 6 (c) illustrate example processes of cell activation and adjustment according to some example embodiments of the present disclosure
  • FIG. 7 illustrates a signaling flow for cell update according to some example embodiments of the present disclosure
  • FIG. 8 illustrates a signaling flow for cell update according to some other example embodiments of the present disclosure.
  • FIG. 9 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure.
  • airborne platform refers to a platform operating over the air and providing services to a ground device or an airborne device.
  • the airborne platform may typically operate in the stratosphere.
  • the airborne platform may be based on HAPSs, LEO and GEO satellites and other airborne devices.
  • the term “user equipment” refers to any terminal device capable of wireless communications with each other or with a base station.
  • the communications may involve transmitting and/or receiving wireless signals using electromagnetic signals, radio waves, infrared signals, and/or other types of signals suitable for conveying information over air.
  • the UE may be configured to transmit and/or receive information without direct human interaction. For example, the UE may transmit information to the base station on a predetermined schedule, when triggered by an internal or external event, or in response to a request from the network side.
  • Examples of the UE include, but are not limited to, smart phones, wireless-enabled tablet computers, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , wireless customer-premises equipment (CPE) , sensors, metering devices, personal wearables such as watches, and/or vehicles that are capable of communication.
  • LEE laptop-embedded equipment
  • LME laptop-mounted equipment
  • CPE wireless customer-premises equipment
  • sensors metering devices
  • personal wearables such as watches, and/or vehicles that are capable of communication.
  • the term “base station” refers to a network device capable of serving a terminal device or UE in a communication network.
  • the base station may comprise any suitable device via which a UE can access the communication network.
  • Examples of the base stations include a relay, an access point (AP) , a transmission point (TRP) , a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a New Radio (NR) NodeB (gNB) , a Remote Radio Module (RRU) , a radio header (RH) , a remote radio head (RRH) , a low power node such as a femto, a pico, and the like.
  • a gNB node B
  • eNodeB or eNB evolved NodeB
  • gNB New Radio
  • RRU Remote Radio Module
  • RH radio header
  • RRH remote radio head
  • a low power node such as a fe
  • circuitry may refer to one or more or all of the following:
  • combinations of hardware circuits and software such as (as applicable) : (i) a combination of analog and/or digital hardware circuit (s) with software/firmware and (ii) any portions of hardware processor (s) with software (including digital signal processor (s) ) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in a server, a cellular base station, or other computing or base station.
  • first As used herein, the terms “first” , “second” and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be referred to as a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and/or” includes any and all combinations of one or more of the listed terms.
  • a HAPS operating on airborne platform provides a new telecommunication infrastructure for rural and remote areas. Depending on a minimum elevation angle accepted from a location of a UE, the HAPS may operate at an altitude between 20 km to 50 km to cover a service area up to 800,000 square kilometers with a diameter of 1,000 km.
  • a HAPS may be configured with a plurality of cells which may be activated when needed, to provide additional capacity.
  • FIGS. 1 (a) , 1 (b) and 1 (c) illustrate example scenarios of cell activation by a HAPS.
  • a HAPS 105 hosts many cells 110-1...110-N where N represents any suitable positive integer greater than 2, and all of the cells 105-1...105-N are activated.
  • N represents any suitable positive integer greater than 2
  • all of the cells 105-1...105-N are activated.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • a next generation radio access network (NG-RAN) node owning a capacity boosting cell can autonomously decide to switch-off such a cell (to be in an inactive state) to lower energy consumption.
  • the decision may be made based on cell loads according to network configurations.
  • the switch-off decision may also be made by an operation and maintenance (O&M) device instead of the NG-RAN node.
  • O&M operation and maintenance
  • the NG-RAN node may initiate handover actions to off-load the UEs of the capacity boosting cell to a target node.
  • the NG-RAN node may further indicate to the target node the reason for handover with an appropriate cause value to facilitate the target node to select a target cell, for example.
  • Neighboring NG-RAN nodes may be informed by the NG-RAN node owning the concerned cell about the switch-off actions over an Xn interface.
  • the informing may be implemented in a configuration update procedure.
  • the informed nodes may update cell configuration such as neighbor relationship configuration if a certain cell is inactive.
  • an NG-RAN node owning non-capacity boosting cells may request re-activation of a capacity boosting cell from a neighboring node over the Xn interface if there is a capacity need for such a cell. This may be achieved via a cell activation procedure.
  • the NG-RAN node may prevent UEs in an idle mode from camping on this cell and may prevent incoming handovers to the same cell. Accordingly, the NG-RAN node receiving such a request may make a switch-on decision. The switch-on decision may be alternatively made by the O&M device. Further, all peer NG-RAN nodes may be informed by the NG-RAN node owning the concerned cell about the re-activation of this cell by an indication over the Xn interface.
  • a HAPS based network Unlike terrestrial cellular networks having a wired power source, a HAPS based network usually has limited energy. An energy-drained HAPS may shorten lifetime of the HAPS based network. For example, if that some HAPSs are out of services due to lack of energy, the absence of energy-exhausted HAPS may change network coverage or cause a coverage hole. This would cause network self-organization to maintain network connectivity, which may further exacerbate the drainage of the network energy. Accordingly, an energy-efficient HAPS is beneficial to prolong the lifetime of the HAPS based network and to avoid coverage holes.
  • Deactivation of a less loaded or less used cell may save the network energy.
  • the deactivation is implemented by an evolved NodeB (eNB) or gNB-CU based on loads of cells, for example.
  • eNB evolved NodeB
  • current energy saving is based on the assumption that coverage of a neighboring cell is fixed and pre-configured.
  • the neighboring eNB or gNB determines a cell to be activated based on the pre-planned/fixed coverage of the cell.
  • a HAPS is movable and a coverage area of a HAPS cell can be adjusted.
  • the conventional approach of cell activation based on the pre-planned or fixed cell coverage may unnecessarily activate more HAPS cells and increase energy consumption. There is a need to re-activate the smaller number of cells to meet the capacity demand to save energy consumption of a HAPS.
  • Example embodiments of the present disclosure provide an energy efficient scheme to activate or adjust a cell provided via an airborne platform.
  • This scheme collects clustering information of UEs to determine a cell to be activated or adjusted based on the clustering information of UEs.
  • the clustering information may include any suitable information that can reflect that a group of UEs is clustered together or adjacent to each other. If the clustering information of UEs indicates that a group of UEs is being clustered or to be clustered together, a new cell may be activated via the airborne platform, or a coverage area of an existing cell may be adjusted via the airborne platform, to provide services to the clustered UEs. In this way, a more appropriate cell can be activated or adjusted on an airborne platform to serve a group of clustered UEs, thereby reducing the number of cells to be activated and saving the network energy.
  • FIG. 2 shows an example environment 200 in which example embodiments of the present disclosure can be implemented.
  • the environment 200 comprises a device 205 operating on an airborne platform.
  • the device 205 may be implemented by any suitable device in a non-terrestrial network such as a HAPS, a LEO satellite, a GEO satellite or the like.
  • the device 205 may function as a base station (for example, a gNB) or a part of a base station.
  • the device 205 may function as a DU of the base station (for example, a gNB-DU) .
  • the device 205 may function as a whole base station.
  • the device 205 may also act as other devices such as a UE.
  • the device 205 may be an integrated access and backhaul (IAB) node or a relay node that relays the traffic between the UEs in its coverage area and the ground station or base station on the ground.
  • IAB integrated access and backhaul
  • the device 205 hosts a coverage area 210 and is configured with a plurality of cells 215-1, 215-2, 215-3, 215-4, 215-5...215-L in the coverage area 210.
  • L represents any suitable positive integer greater than 5.
  • the cells 215-1...215-L will be collectively or individually referred to as a cell 215.
  • the device 205 can serve a plurality of UEs 220-1, 220-2, 220-3, 220-4..., 220-H which will be collectively or individually referred to a UE 220.
  • H represents any suitable positive integer greater than 4.
  • any suitable number of cells 215 can be provided by the device 205. For example, it may be possible that less than five cells are supported. It should also be understood that any suitable number of UEs 220 can be served by the device 205 in the coverage area 210. In some example embodiments, there may be less than 4 UEs 220 located in the coverage area 210.
  • the UEs 220 may communicate with the device 205, or communicate to each other directly or indirectly via the device 205.
  • the communications in the environment 200 may follow any suitable communication standards or protocols, which are already in existence or to be developed in the future, such as Universal Mobile Telecommunications System (UMTS) , long term evolution (LTE) , LTE-Advanced (LTE-A) , the fifth generation (5G) New Radio (NR) , Wireless Fidelity (Wi-Fi) and Worldwide Interoperability for Microwave Access (WiMAX) standards, and employs any suitable communication technologies, including, for example, Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Division Multiplexing (OFDM) , time division multiplexing (TDM) , frequency division multiplexing (FDM) , code division multiplexing (CDM) , Bluetooth, ZigBee, and machine type communication (MTC) , enhanced mobile broadband (eMBB) , massive machine type communication (mMTC) , ultra-
  • the device 205 can obtain clustering information of UEs 220. For example, as shown in FIG. 2, four UEs 220-1, 220-2, 220-2 and 220-4 are clustered to be adjacent to each other. Accordingly, the device 205 can obtain the clustering information that indicates that the group of UEs 220-1, 220-2, 220-2 and 220-4 is clustered together. Based on the clustering information, a suitable cell 215 may be selected to be activated or adjusted to serve the group of the UEs 220-1, 220-2, 220-3 and 220-4.
  • a cell 215-6 may be activated to serve the UEs 220-1, 220-2, 220-3 and 220-4 by adjusting a coverage area of the cell 215-6.
  • the cell activation approach according to embodiments of the present disclosure can reduce the number of cells to be activated and therefore reduce energy consumption in a network.
  • FIG. 4 shows a flowchart of an example method 400 according to some example embodiments of the present disclosure.
  • the method 400 may be implemented by the device 205 on an airborne platform.
  • the method 400 will be described with reference to FIG. 2.
  • the information may comprise any suitable information associated with the UEs 220.
  • the device 205 may receive a measurement report from one or more UEs 220.
  • the measurement report may include downlink (DL) measurements of the UEs 220 including, for example, positioning information, DL receiving power or a reference signal quality and the like.
  • the UEs 220 may report Reference Signal Receiving Power (RSRP) of stronger or strongest neighboring cells. Based on the measurement report from the UEs 220, the UEs 220 may be positioned to find the clustered UEs 220.
  • RSRP Reference Signal Receiving Power
  • the device 205 may receive from one or more UEs 220 location information such as Global Navigation Satellite System (GNSS) data, Global Positioning System (GPS) data or longitude and/or latitude information. Based on the location information, current locations of the UEs 220 may be determined to find whether a group of UEs 220 is being clustered together.
  • GNSS Global Navigation Satellite System
  • GPS Global Positioning System
  • the information from the UEs 220 may comprise mobility information of at least one UE 220 such as a moving speed or direction. Accordingly, future locations of the UEs 220 may be determined to find the UEs 220 to be clustered in the near future.
  • the information associated with the UEs 220 may comprise angle of arrival (AoA) , Timing Advance and Doppler frequency shift information.
  • AoA may be related to orientation of a UE 220
  • Timing Advance may be related to a DL transmission distance
  • Doppler frequency shift may be related to a mobility pattern of a UE 220. Accordingly, based on such information, it may be determined whether some UEs 220 are clustered.
  • the information associated with the UEs 220 may be reported by the UEs 220 periodically. For example, the UEs 220 may periodically send measurement reports to report such information. Alternatively or in addition, the UEs 220 may send the associated information when needed. For example, the device 205 may initiate a procedure to collect the information from the UEs 220. In some example embodiments, the device 205 may request one or more UEs 220 to provide location information such as current positioning data and mobility data. Based on such information, areas to which the UEs 220 will move shortly may be determined or predicted, and potential clustering of the UEs 220 may be determined.
  • the device 205 may send requests to one or more UEs 220 to transmit uplink signals such as sounding reference signals (SRSs) .
  • SRSs sounding reference signals
  • the requested UE 220 may transmit a SRS.
  • the device 205 may detect SRSs from the UEs 220 and determine received power and AoA of the SRSs. The AoA may be associated with a receiving beam that is used. Based on the received power and AoA of the SRSs, the device 205 may determine whether some UEs 220 are clustered together.
  • the request may be sent from the gNB-CU to the device 205 and device 205 forwards the request to the UE 220.
  • the device 205 receives the information from the UE 220, the device 205 forwards the information to the gNB-CU on the ground.
  • a group of UEs (such as the UEs 220-1, 220-2, 220-3 and 220-4) being clustered or to be clustered is determined from the plurality of UEs 220 based on the information associated with the plurality of UEs 220.
  • clustering information of the group of UEs is determined from the information associated with the plurality of UEs.
  • the clustering information can indicate that the group of UEs 220 is clustered currently or to be clustered in the near future. In some example embodiments, the clustering information may indicate an area or a cell where the group of UEs 220 are clustered.
  • the clustering information of the group of UEs 220 is sent to a further device to further determine a cell to be activated or adjusted.
  • the device 205 may send the clustering information to a further device such as a CU of the base station operating either on an airborne platform or on the ground such that the corresponding cell activation or adjustment decision can be made at the further device.
  • the device 205 may send the clustering information to a further device such as a core network (CN) device on the ground to make the decision.
  • CN core network
  • an indication of activating a new cell or adjusting a coverage area of an existing cell is received from the further device to serve the group of UEs 220 via the airborne platform. Based on the received indication, at block 430, the device 205 activates the new cell or adjusts the coverage area of the existing cell.
  • the device 205 may not collect and/or determine the clustering information of UEs 220 while a further device does this.
  • a further device does this.
  • a CU of the base station or a ground network device such as a CN device or an O&M device collects and/or determines the clustering information of UEs 220 and indicates the device 205 to activate or modify a cell for the clustered UEs 220.
  • the device 205 may utilize the clustering information to determine whether to activate a new cell or adjust a coverage area of an existing cell, to serve the group of UEs 220. If the clustering of the UEs 220 occurs in or near a coverage area of a neighboring device, the device 205 may send the clustering information of the UEs 220 to the neighboring device to cause the neighboring device to make a decision of whether to activate a new cell or adjust a coverage area of an existing cell.
  • FIG. 5 shows a flowchart of an example method 500 according to some other example embodiments of the present disclosure.
  • the method 500 can be implemented by the device 205 in the case that the device 205 functions as a whole base station.
  • the method 500 may be implemented by a CU of the base station such as a gNB-CU.
  • the CU of the base station may operate either on an airborne platform or on the ground. It is also possible that the method 500 may be implemented by a network device on the ground.
  • the method 500 will be described with reference to FIG. 2.
  • clustering information of a group of UEs 220 is obtained.
  • the clustering information can indicate that the group of UEs 220 such as the UEs 220-1, 220-2, 220-2 and 220-4 are clustered currently or to be clustered shortly.
  • the clustering information may be obtained in any suitable way, for example, from the UEs 220, or from the gNB-DU, or from the neighboring base station.
  • the clustering information may be received from the device 205 or from the UEs 220 as described above.
  • the information associated with the UEs 220 may be first collected, and then collected information is utilized to determine the clustering information of the UEs 220.
  • the collected information may comprise measurement reports, location information, mobility patterns, timing advance, Doppler frequency shift information, a reference signal quality and other information that can be used to determine the clustering of the UEs 220.
  • the clustering information of the UEs 220 may be received from a neighboring device that may operate either on an airborne platform or on the ground.
  • the neighboring device may collect information from UEs in its own coverage area to detect occurrence of the UE clustering, and then provide the clustering information of the UEs.
  • the information collection and the clustering information provision may be implemented by the neighboring device in any suitable timing. For example, when the neighboring device is to activate a cell 215, or when the neighboring device is to handover one or more UEs to the device 205, the neighboring device may collect the information associated with the UEs and provide the clustering information of the UEs. The cell activation or handover may be determined by the neighboring device based on the capacity demand or mobility of UEs within its own coverage area.
  • the clustering information may be transmitted by the neighboring device in a wired or wireless way.
  • the clustering information of the UEs may be transmitted via an interface such as an Xn interface between base stations.
  • the clustering information may be transmitted in a wireless way.
  • an action to be performed is determined to serve the group of UEs such as the UEs 220-1, 220-2, 220-3 and 220-4 via the airborne platform.
  • the action comprises activating a new cell or adjusting a coverage area of an existing cell. For example, if there already has one or more cells being serving the group of UEs and one of the cells can meet the capacity demand of the group of UEs, it may be determined to adjust a coverage area of the cell to serve the group of UEs.
  • the coverage area of the cell may be adjusted in terms of a size, shape and/or location of the cell. For example, a beam direction, a beam shape or an antenna direction may be changed or adjusted for the cell.
  • the capacity or throughput requirement of the UEs 220 may be compared with a threshold that may be set based on available energy or other factors related to the device 205 or associated devices. If the capacity or throughput requirement is higher than the threshold, a new cell may be activated.
  • the action to be performed may comprise sending the clustering information of the group of UEs 220 to a neighboring device either on an airborne platform or on the ground to cause the neighboring device to activate a new cell or adjust a coverage area of an existing cell to serve the group of UEs 220. For example, if it is determined that the group of UEs 220 is to be served by the neighboring device, the clustering information of the group of UEs 220 will be sent to the neighboring device.
  • the handover of the UEs 220 may be performed if the capacity or throughput requirement of the group of UEs 220 cannot be met in the coverage area 210 of the device 205.
  • the clustering information may be sent to the neighboring device such that the neighboring device can activate a new cell or adjust an existing cell to serve the group of UEs.
  • FIGS. 6 (a) , 6 (b) and 6 (c) show example processes of cell activation and adjustment according to some example embodiments of the present disclosure.
  • the device 205 is configured with a macro cell 605 to provide the coverage area 210 such that all the UEs 220 located in the coverage area 210 can perform random access.
  • the cells 220 deployed in the coverage area 210 are small cells to provide additional capacity in the coverage area 210.
  • the macro cell 605 and the cells 220 may use different bandwidth parts (BWPs) .
  • the cell 215-6 is selectively activated based on the clustering information of a group of UEs 220-1, 220-2, 220-3 and 220-4.
  • the clustering information of the UEs may be determined from information collected from the UEs 220 in the macro cell 605. For example, when usage (such as radio resource usage) of the macro cell 605 reaches a threshold, the device 205 may initiate a process of collecting information from the UEs 220 in the macro cell 605. The device 205 may collect from the UEs 220 measurement reports including location information and mobility information of the UEs 220. Based on the measurement reports, a potential area where the UEs 220 will move in the near future such as next 10 minutes may be determined.
  • the device 205 may request all the UEs 220 in the macro cell 605 to transmit SRSs in the same time period such as the same slot.
  • the received power of the SRSs will be measured in the inactive cells 215 each with the corresponding receiving beam.
  • the received power of many SRSs in the cell 215-6 is above a threshold, and thus it is determined that many UEs 220 are clustered in a coverage area of the cell 215-6 which should be activated.
  • the threshold may be set based on the amount of available energy of the device 205. For example, a higher threshold may be set for a lower energy level of the device 205 to balance capacity boosting and energy saving.
  • the device 205 further adjusts a coverage area of the already activated cell 215-6 by considering the updated clustering information of the group of UEs 220-1, 220-2, 220-3 and 220-4.
  • the coverage area of the cell 215-6 may be adjusted by adjusting an antenna direction, a beam width and/or a beam shape in the cell 215-6.
  • FIG. 7 shows an example signaling flow 700 for cell update according to some example embodiments of the present disclosure.
  • a base station is implemented by a gNB operating in a distributed mode
  • the device 205 is implemented with a gNB-DU 705.
  • the signaling flow 700 will be described with reference to FIGS. 2 and 6 (a) -6 (c) .
  • the gNB-DU 705 activates (710) only the macro cell 605 to serve the UEs 220-2 and 220-3 (labeled as UE1 and UE2, respectively) .
  • the gNB-DU 705 may have one or more cells 220 (such as small cells) which are activated but not serve the UEs 220-2 and 220-3.
  • the device 205 sends (715) a request for the UE report, for example, a SRS, to the UE 220-2 and sends (720) a request for the UE report, for example, a SRS to the UE 220-3 in the macro cell 605 to collect the clustering information of the UEs 220-2 and 220-3.
  • the device 205 may request the UEs 220-2 and 220-3 to provide the location information such as current locations or mobility patterns of the UEs 220-2 and 220-3.
  • the UE 220-2 transmits (725) a report, for example, a SRS to the device 205
  • the UE 220-3 transmits (730) a report, for example, a SRS to the device 205.
  • the UEs 220-2 and 220-3 may transmit other information such as locations, mobility patterns or the like.
  • the device 205 detects (735) the clustered UEs based on the received information from the UE, for example, the power of the SRSs in the individual cells 220 using different receiving beams or based on the locations and mobility patterns of the UEs 220-2 and 220-3.
  • the device 205 sends (740) an F1 Application Protocol (F1AP) message to a gNB-CU 745 to provide the clustering information of the UEs 220-2 and 220-3.
  • the clustering information may be transmitted as part of UE-associated signaling for the related UEs 220-2 and 220-3, or non-UE-associated signaling for all UEs that have been detected as clustered UEs.
  • the gNB-CU 745 may also receive the clustering information of the UEs 220 from other devices on the airborne platform or on the ground such as a neighboring device.
  • the clustering information may include the information received from the UEs, and may also include the identity of the UE, the required quality of service for the UE’s service, the geo area of the clustered UEs, or the like.
  • the information from the UE may be received in a message that can only be terminated at the gNB-CU.
  • the UE sends the information in a Radio Resource Control (RRC) message that is only terminated at the gNB-CU.
  • RRC Radio Resource Control
  • the gNB-CU 745 may consolidate the clustering information received from the UEs 220-2 and 220-3, from the gNB-DU 705, and from the neighboring gNB-CU. The gNB-CU 745 may make a final decision on the clustered UEs.
  • the gNB-CU 745 There are two options for the gNB-CU 745 to proceed. An option is to activate a new cell 215. As shown, the gNB-CU 745 determines (750) to activate a new cell. The gNB-CU 745 sends (755) an F1AP message to inform the device 205 to activate a cell for serving the clustered UEs 220-2 and 220-3. For example, the gNB-CU 745 may initiate an F1 CU configuration update procedure to activate the cell 215 for clustered UEs 220-2 and 220-3.
  • the F1AP message sent by the gNB-CU 745 to the device 205 may include full or part of the clustering information of the UEs 220-2 and 220-3, and may also indicate a target coverage area that the new cell 215 to serve. Accordingly, the device 205 activates (760) the new cell 215 to serve the clustered UEs 220-2 and 220-3.
  • the other option for the gNB-CU 745 is to adjust a coverage area of an existing cell 215 if the device 205 has already activated a cell 215 for the UEs 220-2 and 220-3. As shown, the gNB-CU 745 determines (765) to adjust a coverage area of an existing cell 215 to serve the clustered UEs 220-2 and 220-3. The gNB-CU 745 sends (770) a F1AP message to inform adjustment of the coverage area of an existing cell 215.
  • the gNB-CU 745 may include the clustering information of the UEs 220-2 and 220-3 in the F1AP message. The clustering information may indicate a target coverage area that the cell 215 to be adjusted needs to serve.
  • the device 205 adjusts (775) the coverage area of the existing cell 215, for example, by changing the beam direction and/or beam shape. If an UE currently served by the cell 215 to be adjusted will be affected to be not able to connect to the cell 215 anymore, the gNB-CU 745 may handover this UE to the macro cell 605, or another cell 215.
  • FIG. 8 shows an example signaling flow 800 for cell update according to some other example embodiments of the present disclosure.
  • the signaling flow 800 involves a neighboring gNB 805.
  • the neighboring gNB 805 sends (810) an Xn message to provide the clustering information of the UEs 220-2 and 220-3 to the gNB-CU 745.
  • the gNB-CU 745 may make the determination considering at least one of the information from the gNB-DU 705, the information from the UE, and the information from the neighboring gNB.
  • FIG. 9 is a simplified block diagram of a device 800 that is suitable for implementing example embodiments of the present disclosure.
  • the device 900 includes a processor 910, a memory 920 coupled to the processor 910, a communication module 930 coupled to the processor 910, and a communication interface (not shown) coupled to the communication module 930.
  • the memory 920 stores at least a program 940.
  • the communication module 930 is for bidirectional communications, for example, via multiple antennas.
  • the communication interface may represent any interface that is necessary for communication.
  • the program 940 is assumed to include program instructions that, when executed by the associated processor 910, enable the device 900 to operate in accordance with the example embodiments of the present disclosure, as discussed herein with reference to FIGS. 1-8.
  • the example embodiments herein may be implemented by computer software executable by the processor 910 of the device 900, or by hardware, or by a combination of software and hardware.
  • the processor 910 may be configured to implement various example embodiments of the present disclosure.
  • the memory 920 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology, such as a non-transitory computer readable storage medium, semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. While only one memory 920 is shown in the device 900, there may be several physically distinct memory modules in the device 900.
  • the processor 910 may be of any type suitable to the local technical network, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 900 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the processor 910 and the communication module 930 may cooperate to implement the method 400 as described above with reference to FIGS. 2-4.
  • the processor 910 and the communication module 930 may cooperate to implement the method 500 as described above with reference to FIG. 5. All operations and features as described above with reference to FIGS. 2-8 are likewise applicable to the device 900 and have similar effects. For the purpose of simplification, the details will be omitted.
  • various example embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of example embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the method 400 or 500 as described above with reference to FIGS. 2-8.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various example embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable media.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • the computer readable storage medium would include 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) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , Digital Versatile Disc (DVD) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • RAM random access memory
  • ROM read-only memory
  • EPROM or Flash memory erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • DVD Digital Versatile Disc
  • an optical storage device a magnetic storage device, or any suitable combination of the foregoing.
  • a device comprises: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the device to: obtain clustering information of a group of UEs; and determine, based on the clustering information, an action to be performed, the action comprising: activating a new cell to serve the group of UEs via an airborne platform, adjusting a coverage area of an existing cell to serve the group of UEs via the airborne platform, or sending the clustering information of the group of UEs to a neighboring device.
  • the device is caused to obtain the clustering information of the group of UEs by: collecting information associated with a plurality of UEs; determining, based on the information associated with the plurality of UEs, the group of UEs from the plurality of UEs; and determining the clustering information of the group of UEs from the information associated with the plurality of UEs.
  • the information associated with the plurality of UEs comprises at least one of: a measurement report from at least one of the plurality of UEs, location information of at least one of the plurality of UEs, mobility information of at least one of the plurality of UEs, timing advance of at least one of the plurality of UEs, Doppler frequency shift information of at least one of the plurality of UEs, or a reference signal quality from at least one of the plurality of UEs.
  • the device is further caused to obtain the clustering information of the group of UEs by: receiving the clustering information of the group of UEs from at least one of a device operating on the airborne platform, or a neighboring device.
  • the device is caused to determine the action to be performed by: in accordance with a determination that the group of UEs is to be served by the neighboring device, determining to send the clustering information of the group of UEs to the neighboring device.
  • the device is implemented at a central unit of a base station, and the device is further caused to: in accordance with a determination to activate the new cell or adjust the coverage area of the existing cell, send, to a distributed unit of the base station operating on the airborne platform, an indication of activating the new cell or adjusting the coverage area of the existing cell.
  • a device comprises: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the device to: receive, from a further device, an indication of activating a new cell or adjusting a coverage area of an existing cell, to serve a group of UEs via an airborne platform; and activate the new cell or adjust the coverage area of the existing cell based on the received indication.
  • the device is further caused to: receive, from a plurality of UEs, information associated with the plurality of UEs; determine, based on the information associated with the plurality of UEs, the group of UEs from the plurality of UEs; determine clustering information of the group of UEs from the information associated with the plurality of UEs; and send, to the further device, the clustering information of the group of UEs.
  • the device is further caused to: send, to at least one of the plurality of UEs, a request for information associated with the at least one of the plurality of UEs.
  • the received information associated with the plurality of UEs comprises at least one of: a measurement report from at least one of the plurality of UEs, location information of at least one of the plurality of UEs, mobility information of at least one of the plurality of UEs, timing advance of at least one of the plurality of UEs, Doppler frequency shift information of at least one of the plurality of UEs, or a reference signal quality from at least one of the plurality of UEs.
  • the device is caused to adjust the coverage area of the existing cell by: adjusting at least one of an antenna direction, a beam width or a beam shape, associated with the existing cell.
  • the device is implemented at a distributed unit of a base station, the distributed unit operating on an airborne platform.
  • a method comprises: obtaining clustering information of a group of UEs; and determining, based on the clustering information, an action to be performed, the action comprising: activating a new cell to serve the group of UEs via an airborne platform, adjusting a coverage area of an existing cell to serve the group of UEs via the airborne platform, or sending the clustering information of the group of UEs to a neighboring device.
  • obtaining the clustering information of the group of UEs comprises: collecting information associated with a plurality of UEs; determining, based on the information associated with the plurality of UEs, the group of UEs from the plurality of UEs; and determining the clustering information of the group of UEs from the information associated with the plurality of UEs.
  • the information associated with the plurality of UEs comprises at least one of: a measurement report from at least one of the plurality of UEs, location information of at least one of the plurality of UEs, mobility information of at least one of the plurality of UEs, timing advance of at least one of the plurality of UEs, Doppler frequency shift information of at least one of the plurality of UEs, or a reference signal quality from at least one of the plurality of UEs.
  • obtaining the clustering information of the group of UEs further comprises: receiving the clustering information of the group of UEs from at least one of a device operating on the airborne platform, or a neighboring device.
  • determining the action to be performed comprises: in accordance with a determination that the group of UEs is to be served by the neighboring device, determining to send the clustering information of the group of UEs to the neighboring device.
  • the method is implemented at a central unit of a base station, and the method further comprises: in accordance with a determination to activate the new cell or adjust the coverage area of the existing cell, sending, to a distributed unit of the base station operating on the airborne platform, an indication of activating the new cell or adjusting the coverage area of the existing cell.
  • a method comprising: receiving, from a further device, an indication of activating a new cell or adjusting a coverage area of an existing cell, to serve a group of UEs via an airborne platform; and activating the new cell or adjusting the coverage area of the existing cell based on the received indication.
  • the method further comprises: receiving, from a plurality of UEs, information associated with the plurality of UEs; determining, based on the information associated with the plurality of UEs, the group of UEs from the plurality of UEs; determining clustering information of the group of UEs from the information associated with the plurality of UEs; and sending, to the further device, the clustering information of the group of UEs.
  • the method further comprises: sending, to at least one of the plurality of UEs, a request for information associated with the at least one of the plurality of UEs.
  • the received information associated with the plurality of UEs comprises at least one of: a measurement report from at least one of the plurality of UEs, location information of at least one of the plurality of UEs, mobility information of at least one of the plurality of UEs, timing advance of at least one of the plurality of UEs, Doppler frequency shift information of at least one of the plurality of UEs, or a reference signal quality from at least one of the plurality of UEs.
  • adjusting the coverage area of the existing cell comprises: adjusting at least one of an antenna direction, a beam width or a beam shape, associated with the existing cell.
  • the method is implemented at a distributed unit of a base station, the distributed unit operating on an airborne platform, and the further device comprises a central unit of the base station.
  • an apparatus comprises: means for obtaining clustering information of a group of UEs; and means for determining, based on the clustering information, an action to be performed, the action comprising: activating a new cell to serve the group of UEs via an airborne platform, adjusting a coverage area of an existing cell to serve the group of UEs via the airborne platform, or sending the clustering information of the group of UEs to a neighboring device.
  • the means for obtaining the clustering information of the group of UEs comprises: means for collecting information associated with a plurality of UEs; means for determining, based on the information associated with the plurality of UEs, the group of UEs from the plurality of UEs; and means for determining the clustering information of the group of UEs from the information associated with the plurality of UEs.
  • the information associated with the plurality of UEs comprises at least one of: a measurement report from at least one of the plurality of UEs, location information of at least one of the plurality of UEs, mobility information of at least one of the plurality of UEs, timing advance of at least one of the plurality of UEs, Doppler frequency shift information of at least one of the plurality of UEs, or a reference signal quality from at least one of the plurality of UEs.
  • the means for obtaining the clustering information of the group of UEs further comprises: means for receiving the clustering information of the group of UEs from at least one of a device operating on the airborne platform, or a neighboring device.
  • the means for determining the action to be performed comprises: means for in accordance with a determination that the group of UEs is to be served by the neighboring device, determining to send the clustering information of the group of UEs to the neighboring device.
  • the apparatus is implemented at a central unit of a base station, and the apparatus further comprises: means for in accordance with a determination to activate the new cell or adjust the coverage area of the existing cell, sending, to a distributed unit of the base station operating on the airborne platform, an indication of activating the new cell or adjusting the coverage area of the existing cell.
  • an apparatus comprises: receiving, from a further device, an indication of activating a new cell or adjusting a coverage area of an existing cell, to serve a group of UEs via an airborne platform; and means for activating the new cell or adjusting the coverage area of the existing cell based on the received indication.
  • the apparatus further comprises: means for receiving, from a plurality of UEs, information associated with the plurality of UEs; means for determining, based on the information associated with the plurality of UEs, the group of UEs from the plurality of UEs; means for determining clustering information of the group of UEs from the information associated with the plurality of UEs; and means for sending, to the further device, the clustering information of the group of UEs.
  • the apparatus further comprises: means for sending, to at least one of the plurality of UEs, a request for information associated with the at least one of the plurality of UEs.
  • the received information associated with the plurality of UEs comprises at least one of: a measurement report from at least one of the plurality of UEs, location information of at least one of the plurality of UEs, mobility information of at least one of the plurality of UEs, timing advance of at least one of the plurality of UEs, Doppler frequency shift information of at least one of the plurality of UEs, or a reference signal quality from at least one of the plurality of UEs.
  • the means for adjusting the coverage area of the existing cell comprises: means for adjusting at least one of an antenna direction, a beam width or a beam shape, associated with the existing cell.
  • the apparatus is implemented at a distributed unit of a base station, the distributed unit operating on an airborne platform.
  • a computer readable storage medium comprises program instructions stored thereon, the instructions, when executed by a processor of a device, causing the device to perform the method according to some example embodiments of the present disclosure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation décrits à titre d'exemple de la présente invention concernent des dispositifs, des procédés, des appareils et des supports de stockage lisibles par ordinateur pour une augmentation de capacité basée sur une plate-forme aéroportée. Dans des modes de réalisation décrits à titre d'exemple, des informations de regroupement d'un groupe d'équipements d'utilisateurs (UE) sont obtenues. Une action à effectuer est déterminée d'après les informations de regroupement. L'action comporte les actions consistant à activer une nouvelle cellule pour desservir le groupe d'UE par l'intermédiaire d'une plate-forme aéroportée, à ajuster une zone de couverture d'une cellule existante pour desservir le groupe d'UE par l'intermédiaire la plate-forme aéroportée, ou à envoyer les informations de regroupement du groupe d'UE à un dispositif voisin.
PCT/CN2020/122607 2020-10-21 2020-10-21 Augmentation de capacité basée sur plate-forme aéroportée WO2022082541A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080106423.5A CN116326190B (zh) 2020-10-21 2020-10-21 基于机载平台的容量提升
PCT/CN2020/122607 WO2022082541A1 (fr) 2020-10-21 2020-10-21 Augmentation de capacité basée sur plate-forme aéroportée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/122607 WO2022082541A1 (fr) 2020-10-21 2020-10-21 Augmentation de capacité basée sur plate-forme aéroportée

Publications (1)

Publication Number Publication Date
WO2022082541A1 true WO2022082541A1 (fr) 2022-04-28

Family

ID=81291364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/122607 WO2022082541A1 (fr) 2020-10-21 2020-10-21 Augmentation de capacité basée sur plate-forme aéroportée

Country Status (2)

Country Link
CN (1) CN116326190B (fr)
WO (1) WO2022082541A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014112836A1 (fr) * 2013-01-18 2014-07-24 Samsung Electronics Co., Ltd. Procédé d'auto-optimisation pour groupe d'ue
WO2019193560A1 (fr) * 2018-04-05 2019-10-10 Telefonaktiebolaget Lm Ericsson (Publ) Tâche(s) liée(s) à la commande de puissance de liaison montante dépendant de l'état aérien pour des ue aériens
US20200021951A1 (en) * 2014-07-01 2020-01-16 Sony Corporation Communications device, base station, and communications method
CN111684830A (zh) * 2018-02-06 2020-09-18 软银股份有限公司 Haps协同飞行系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8457627B2 (en) * 1999-08-24 2013-06-04 Gogo Llc Traffic scheduling system for wireless communications
WO2011103719A1 (fr) * 2010-02-26 2011-09-01 Nokia Corporation Présélection et prédéploiement de relais mobiles candidats assurés par une station de base
CN104081823B (zh) * 2012-01-25 2018-12-04 瑞典爱立信有限公司 用于异构网络切换的方法和设备
US9621254B2 (en) * 2012-09-21 2017-04-11 Spatial Digital Systems, Inc. Communications architectures via UAV
US9706563B2 (en) * 2015-07-01 2017-07-11 Honeywell International Inc. Systems and methods for air-ground message prioritization
US10175690B2 (en) * 2016-09-02 2019-01-08 Echostar Technologies International Corporation Systems and methods for satellite-based on-board autonomous device deactivation
WO2020167198A1 (fr) * 2019-02-11 2020-08-20 Telefonaktiebolaget Lm Ericsson (Publ) Équilibrage de charge de mobilité amélioré (mlb) accompagné d'un échange de charge basé sur un faisceau

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014112836A1 (fr) * 2013-01-18 2014-07-24 Samsung Electronics Co., Ltd. Procédé d'auto-optimisation pour groupe d'ue
US20200021951A1 (en) * 2014-07-01 2020-01-16 Sony Corporation Communications device, base station, and communications method
CN111684830A (zh) * 2018-02-06 2020-09-18 软银股份有限公司 Haps协同飞行系统
WO2019193560A1 (fr) * 2018-04-05 2019-10-10 Telefonaktiebolaget Lm Ericsson (Publ) Tâche(s) liée(s) à la commande de puissance de liaison montante dépendant de l'état aérien pour des ue aériens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THALES, HNS, INTER DIGITAL, NOKIA AND NOKIA SHANGHAI BELL, ESA, HERON, IAESI: "NR-NTN: TP for Chap 7.3 NR modifications to support NTN", 3GPP DRAFT; RP-181380_CHAP 7.3REV, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. TSG RAN, no. La Jolla, USA; 20180611 - 20180614, 14 June 2018 (2018-06-14), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051469299 *

Also Published As

Publication number Publication date
CN116326190A (zh) 2023-06-23
CN116326190B (zh) 2024-08-30

Similar Documents

Publication Publication Date Title
US20220417889A1 (en) Gnss measurement gaps
CN107836086B (zh) 支持移动性的方法以及用户设备
US11533663B2 (en) Paging area update technique for reducing power consumption of a wire device moving in air
JP7224291B2 (ja) 通信装置
EP4044650A1 (fr) Dispositif terminal et procédé de communication
US20220131602A1 (en) Reliable link performance for cellular internet of things and new radio in non-terrestrial networks
US11399379B2 (en) Systems, methods and apparatuses for terrestrial and non-terrestrial networks interference mitigation
US20220158717A1 (en) Radio network node and method for reducing energy consumption in a wireless communications network
WO2023071716A1 (fr) Procédé de communication par satellite et dispositif de communication par satellite
US20240032139A1 (en) Discontinuous coverage in nr ntn and iot ntn systems
WO2023066915A1 (fr) Récepteur ou signal de réveil de cellule
WO2024087233A1 (fr) Procédé, dispositif et support d'enregistrement informatique de communication
WO2022082541A1 (fr) Augmentation de capacité basée sur plate-forme aéroportée
EP4008127A1 (fr) Détermination d'un faisceau dans une rat avec des informations angulaires fournies par une autre rat pour effectuer un transfert
US20220338128A1 (en) Altitude-aware energy saving methods and apparatuses
US11012863B1 (en) Method and system for configuration of carrier-aggregation service
KR20160091843A (ko) 이동무선백홀 망에서의 파일럿 신호 전송 방법
WO2020154855A1 (fr) Amélioration de la mobilité d'un dispositif terminal
WO2024219407A1 (fr) Dispositif relais, dispositif de communication et procédé de communication
WO2024219408A1 (fr) Dispositif relais, dispositif de communication et procédé de communication
WO2023159485A1 (fr) Procédé, dispositif et support de stockage informatique destinés à la communication
US10750416B1 (en) Proactive handover in response to prediction of precipitation
WO2024131746A1 (fr) Dispositif électronique et procédé dans un système de communication sans fil non terrestre
US20240137856A1 (en) Communication systems, methods, and non-transitory computer-readable storage devices using joint initial access with terrestrial and non-terrestrial communication nodes
US20230163834A1 (en) Beam switching for high altitude platform stations (haps)

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20958124

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20958124

Country of ref document: EP

Kind code of ref document: A1