Systems and methods for secure and reliable command and control of in-flight uncrewed aerial vehicles via public land mobile networks

    公开(公告)号:US12160785B2

    公开(公告)日:2024-12-03

    申请号:US18681125

    申请日:2022-08-04

    Abstract: Systems and methods for supporting multiple uncrewed aerial vehicle (UAV) Service Suppliers (multi-USS) are described. The methods may be performed by a wireless transmit/receive unit (WTRU) including a UAV application enabling (UAE) client located in the UAV with the method performed with the UAV in-flight. Steps may include: sending a registration request to a UAE server, the registration request including an indication of multi-USS capability; receiving a registration response message that includes an indication that the UAE server supports multi-USS capability; receiving a multi-USS configuration request that includes multi-USS configuration parameters related to conditions under which the UAE client may initiate a USS change and a list of allowed USSs; sending a multi-USS configuration response; and performing a multi-USS change and sending a multi-USS change notification based on the multi-USS configuration parameters.

    Methods for reliable communication using physical downlink control channels

    公开(公告)号:US12160386B2

    公开(公告)日:2024-12-03

    申请号:US18085071

    申请日:2022-12-20

    Abstract: Methods for receiving and transmitting downlink transmissions with increased reliability are provided. A method includes receiving configuration information defining first and second search space sets. The first search space set includes a first one or more search spaces each including a plurality of physical downlink control (PDCCH) candidates. The second search space set includes a second one or more search spaces each including a plurality of PDCCH candidates. The configuration information indicates that the first and second one or more search spaces are linked. The method further includes receiving downlink control information (DCI) by detecting, based on the received configuration information, a first transmission using PDCCH candidates of the first one or more search spaces, detecting a second transmission using PDCCH candidates of the second one or more search spaces, and decoding at least one of the first transmission or the second transmission.

    MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS

    公开(公告)号:US20240397453A1

    公开(公告)日:2024-11-28

    申请号:US18791507

    申请日:2024-08-01

    Abstract: Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.

    METHODS AND PROCEDURES FOR SUBCARRIER SPACING FOR DOWNLINK SHARED CHANNEL TRANSMISSION

    公开(公告)号:US20240396669A1

    公开(公告)日:2024-11-28

    申请号:US18790089

    申请日:2024-07-31

    Abstract: Systems, methods, and instrumentalities are disclosed for narrowband (NB) LTE operation. A WTRU may receive a first downlink data transmission, for example, via a physical downlink shared channel (PDSCH). The WTRU may determine to send a hybrid automatic repeat request (HARQ) acknowledgment (ACK) in response to receipt of the first downlink data transmission. The WTRU may transmit a first uplink reference signal. The WTRU may indicate the HARQ-ACK using a first cyclic shift index that is applied to the first uplink reference signal. The WTRU may determine to send a HARQ negative ACK (HARQ-NACK), for example, on a condition that a second downlink data transmission is not correctly received. The WTRU may send a second uplink reference signal. The WTRU may indicate the HARQ-NACK using a second cyclic shift that is applied to the second uplink reference signal.

    MANAGING NETWORK RESELECTION FOR A HIGH NUMBER OF USERS

    公开(公告)号:US20240389051A1

    公开(公告)日:2024-11-21

    申请号:US18288339

    申请日:2022-04-29

    Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for managing net-work reselection for a high number of users. A Wireless Transmit/Receive Unit, WTRU, generates a registration request indicating that the WTRU has been temporarily connected to a hosting network and that the WTRU requests re-registration to a home network of the WTRU, sends the registration request intended for the home network, receives from the home network a hosting network-specific congestion-related registration reject message including a hosting network specific back-off time value, waits for time corresponding to the back-off time value has elapsed, and sends a further registration request to the home network. The back-off time value is determined by the home network from a number of WRTUs susceptible to attempt re-registration and a capacity of the home network to handle simultaneous registration requests.

    METHODS FOR PERFORMING DISCONTINUOUS RECEPTION ON SIDELINK

    公开(公告)号:US20240381485A1

    公开(公告)日:2024-11-14

    申请号:US18781584

    申请日:2024-07-23

    Abstract: A method for determining a DRX operation in a wireless transmit receive unit (WTRU) that has information indicating multiple DRX configurations, includes selecting a first DRX configuration from the multiple DRX configurations based on a first cast type and an associated first quality of service (QOS) information for a first sidelink radio bearer (SLRB) configuration, selecting a second DRX configuration from the multiple DRX configurations based on a second cast type and an associated second QoS information for a second SLRB configuration, determining a sidelink monitoring time based on a combination of an active time associated with the first DRX configuration and an active time associated with the second DRX configuration, and monitoring a sidelink control channel using the determined sidelink monitoring time.

    LIGHT CONNECTIVITY AND AUTONOMOUS MOBILITY

    公开(公告)号:US20240381478A1

    公开(公告)日:2024-11-14

    申请号:US18779405

    申请日:2024-07-22

    Abstract: Light and/or Inactive state connectivity and/or autonomous mobility techniques are contemplated. A WTRU may, for example, have an inactive/idle mode, a light connected/loosely connected/Inactive mode and/or a connected/fully connected/Active mode. A WTRU in light connected mode may have a WTRU context stored in a RAN. A WTRU may perform an area monitoring procedure while in light connected state. A WTRU may engage in autonomous mobility during light connectivity. A WTRU may move within a logical area (e.g., a RAN paging area), perhaps without notifying the network. The WTRU may provide notice when it has moved outside a logical area (e.g., update RAN paging area). Mobility in light connected state may be network controlled (e.g., to enable handover when data transfer may be allowed and/or ongoing). A WTRU may be reachable during a light connectivity state. A WTRU may engage in autonomous mobility during light connectivity and/or an Inactive state.

    MULTI-PREAMBLE PHYSICAL RANDOM ACCESS CHANNEL INDICATION

    公开(公告)号:US20240381429A1

    公开(公告)日:2024-11-14

    申请号:US18294649

    申请日:2022-08-03

    Abstract: A wireless transmit/receive unit (WTRU) may receive configuration information that indicates associated random access channel occasions (ROs). for example, a first RO and a second RO. The WTRU may determine a feature combination associated with the WTRU. The WTRU may determine a set of preambles based on the feature combination associated with the WTRU. The set of preambles may include multiple subsets of preambles, for example, a first subset of preambles associated with the first RO of the associated ROs and a second subset of preambles associated with the second RO of the associated ROs. The WTRU may transmit a first preamble of the first subset of preambles on the first RO of the plurality of associated ROs and a second preamble of the second subset of preambles on the second RO of the plurality of associated ROs.

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