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公开(公告)号:US12101673B2
公开(公告)日:2024-09-24
申请号:US18494385
申请日:2023-10-25
发明人: Yugeswar Deenoo , Dylan Duc Watts , Diana Pani , Paul Marinier , Mouna Hajir , Ghyslain Pelletier
IPC分类号: H04W36/00 , H04B7/185 , H04W74/0833
CPC分类号: H04W36/0077 , H04B7/18513 , H04W74/0833
摘要: A method and apparatus for receiving a broadcast configuration indicating when a change in a RAN function termination occurs is provided, for example, by a timer value. The broadcast configuration may be received from a satellite, blimp or other moving transmitter. A dedicated configuration may also be received from the serving cell. The dedicated configuration may include a preamble, a transient configuration and an indication of a layer 2 behavior. If a WTRU detects a change in RAN function termination, the WTRU may suspend any uplink data transmissions, apply the transient configuration and transmit the preamble to a target cell. The WTRU may synchronize with the target cell and apply the layer 2 behavior.
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公开(公告)号:US20240215071A1
公开(公告)日:2024-06-27
申请号:US18598565
申请日:2024-03-07
IPC分类号: H04W74/0816 , H04W72/0453 , H04W74/00 , H04W74/0833
CPC分类号: H04W74/0816 , H04W72/0453 , H04W74/008 , H04W74/0841
摘要: A WTRU may be configured to perform radio link monitoring (RLM) based on RLM reference signals (RLM-RSs) transmitted in a cell operating in an unlicensed spectrum. The WTRU may evaluate a radio link failure (RLF) status for the cell using a first RLM criteria based on the RLM-RSs. A transmission instance of the RLM-RSs may be skipped, for example, due to a listen before talk (LBT) failure at a gNodeB (gNB). The WTRU may adapt or change the first RLM criteria and/or evaluate the RLF status of the cell operating in the unlicensed spectrum using a second RLM criteria based on determining that the transmission instance of the RLM-RSs was skipped. The first RLM criteria may correspond to a first RLM process that utilizes a first set of RLM parameters. The second RLM criteria may correspond to a second RLM process that utilizes a second set of RLM parameters.
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公开(公告)号:US20240146598A1
公开(公告)日:2024-05-02
申请号:US18545663
申请日:2023-12-19
发明人: Tao Deng , Steven Ferrante , Ravikumar V. Pragada , Yugeswar Deenoo , Daniel R. Cohen , Janet A. Stem-Berkowitz , Moon-il Lee , Mihaela C. Beluri
CPC分类号: H04L27/2673 , H04B7/0695 , H04B7/088 , H04W48/12 , H04W48/16 , H04W56/001 , H04B7/0617 , H04L27/2666
摘要: A method performed by a wireless transmit/receive unit (WTRU) may include receiving a configuration message including timing information for monitoring at least a subset of a plurality of beams to receive a set of synchronization signals and receiving the set of synchronization signals based on the timing information. The received set of synchronization signals include a primary synchronization signal and a secondary synchronization signal. The method may include receiving a reference signal along with a physical broadcast channel (PBCH) transmission. The reference signal comprises a sequence that is derived from an index associated with one of the at least the subset of beams and associated with the received set of synchronization signals. The method may include transmitting a random access channel (RACH) transmission. The RACH transmission includes a preamble sequence corresponding to the one of the subset of the plurality of beams.
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公开(公告)号:US20240023183A1
公开(公告)日:2024-01-18
申请号:US18476874
申请日:2023-09-28
摘要: A system and methods for beam failure recovery and management for multi-carrier communications with beamforming are disclosed herein. A wireless transmit/receive unit (WTRU) may monitor for and detect a beam failure of a beam associated with a secondary cell (Scell). The WTRU may select an Scell candidate beam. The WTRU may transmit using a selected uplink (UL) resource in a primary cell (SpCell) a medium access control (MAC) control element (CE) including an indication of Scell beam failure and identifying the selected candidate beam. The WTRU may receive an Scell beam failure indication response on the SpCell indicating an SCell index and a downlink (DL) quasi co-location (QCL) reference associated with the Scell. The WTRU may verify that the DL QCL reference matches with the candidate beam. The WTRU may perform random access on the SCell using the selected QCL reference and the selected candidate beam.
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公开(公告)号:US20240022944A1
公开(公告)日:2024-01-18
申请号:US18477784
申请日:2023-09-29
摘要: A wireless transmit receive unit (WTRU) may operate in a dual connectivity (DC) context. While in a RRC_INACTIVE state, the WTRU may receive a paging message from a first cell, which may be associated with a master cell group (MCG). The paging message may indicate that the WTRU is to respond to the paging message on another cell. Also, or alternatively, the paging message may indicate that data for the WTRU is available on an SCG bearer. The WTRU may select a second cell (e.g., a cell other than the first cell) from a secondary cell group (SCG) list, which may include one or more secondary cells. The WTRU may initiate a random access channel procedure with the second cell based on receiving the paging message from the first cell. The WTRU may receive data from the second cell via the SCG bearer while in the RRC_INACTIVE state.
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公开(公告)号:US11848718B2
公开(公告)日:2023-12-19
申请号:US16534577
申请日:2019-08-07
CPC分类号: H04B17/327 , H04W36/00835 , H04W36/30 , H04W48/12 , H04W48/16 , H04W48/20 , H04W74/0816
摘要: A wireless device for determining wireless channel metrics and/or cell quality when accessing wireless resources. For example, the wireless device may use the determined channel metrics and/or cell quality when performing cell selection and/or cell reselection procedures. The wireless device may use the determined channel metrics and/or cell quality to trigger and report cell or frequency measurements in one or more cells neighboring the device's serving cell. The wireless device may use (e.g., further use) the determined channel metrics and/or cell quality to select a beam or sub-band for initial access to a cell. The wireless device may be employed within a wireless communications network that utilizes unlicensed wireless spectrum.
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公开(公告)号:US11812488B2
公开(公告)日:2023-11-07
申请号:US17848102
申请日:2022-06-23
摘要: A system and methods for beam failure recovery and management for multi-carrier communications with beamforming are disclosed herein. A wireless transmit/receive unit (WTRU) may monitor for and detect a beam failure of a beam associated with a secondary cell (Scell). The WTRU may select an Scell candidate beam. The WTRU may transmit using a selected uplink (UL) resource in a primary cell (SpCell) a medium access control (MAC) control element (CE) including an indication of Scell beam failure and identifying the selected candidate beam. The WTRU may receive an Scell beam failure indication response on the SpCell indicating an SCell index and a downlink (DL) quasi co-location (QCL) reference associated with the Scell. The WTRU may verify that the DL QCL reference matches with the candidate beam. The WTRU may perform random access on the SCell using the selected QCL reference and the selected candidate beam.
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公开(公告)号:US20230262676A1
公开(公告)日:2023-08-17
申请号:US18137612
申请日:2023-04-21
IPC分类号: H04W72/044
CPC分类号: H04W72/046 , H04W72/23
摘要: A wireless transmit/receive unit (WTRU) (e.g., a millimeter WTRU (mWTRU)) may receive a first control channel using a first antenna pattern. The WTRU may receive a second control channel using a second antenna pattern. The WTRU may demodulate and decode the first control channel. The WTRU may demodulate and decode the second control channel. The WTRU may determine, using at least one of: the decoded first control channel or the second control channel, beam scheduling information associated with the WTRU and whether the WTRU is scheduled for an mmW segment. The WTRU may form a receive beam using the determined beam scheduling information. The WTRU receive the second control channel using the receive beam. The WTRU determine, by demodulating and decoding the second control channel, dynamic per-TTI scheduling information related to a data channel associated with the second control channel.
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公开(公告)号:US11122587B2
公开(公告)日:2021-09-14
申请号:US14766075
申请日:2014-02-07
摘要: Methods and apparatuses are described herein that facilitate mesh network communication by a millimeter wave base stations (mBs) or WTRUs as nodes of a directional mesh network with other nodes of the directional mesh network. The mB or WTRU may include a directional antenna configured to transmit and receive signals in specific directions during the mesh network communication to define a directional mesh network. The mBs or WTRUs may transmit transmission request messages to neighbor nodes, wherein the transmission request messages include transmission slot allocation bitmaps and channel quality indicator information (CQI). Then response messages from the neighbor nodes may be received, wherein the response messages include receive slot allocation bitmaps and resource allocation decisions. The mBs or WTRUs may then update their transmission slot allocation bitmaps based on the received response messages and transmit data packets in specific directions based on the updated transmission slot allocation bitmap.
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10.
公开(公告)号:US20240323873A1
公开(公告)日:2024-09-26
申请号:US18271712
申请日:2022-01-12
发明人: Oumer Teyeb , Martino Freda , Yugeswar Deenoo , Virgil Comsa
IPC分类号: H04W56/00 , H04W74/0833
CPC分类号: H04W56/0005 , H04W56/0045 , H04W74/0833
摘要: A wireless transmit/receive unit (WTRU) may receive indication information indicating an uplink (UL) configuration and one or more triggering conditions for transmission of UL signals. Based on reception of a deactivation command or fulfillment of a condition for WTRU-triggered deactivation of a secondary cell group (SCG), the WTRU may deactivate the SCG. Based on the UL configuration and the fulfillment of the one or more triggering conditions, the WTRU may transmit the UL signals via the SCG. The WTRU may receive, via a master cell group (MCG), an in-synch or out-of-synch indication for the SCG. Based on the reception of the out-of-synch indication including a timing advance (TA) delta value, the WTRU may update a UL TA towards the SCG based on the TA delta value. Using the updated UL TA towards the SCG, the WTRU may transmit one or more subsequent UL signals via the SCG.
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