-
公开(公告)号：US20220225121A1
公开(公告)日：2022-07-14
申请号：US17635209
申请日：2020-08-14
申请人： IDAC HOLDINGS, INC.
发明人： Kevin T. Wanuga , Sanjay Goyal , Arnab Roy , Onur Sahin , Alpaslan Demir , Ravikumar V. Pragada , Mihaela C. Beluri
摘要： Methods and apparatuses for receive (Rx) beam selection are described herein. A wireless transmit/receive unit (WTRU) may be configured to receive, from a base station (BS), configuration information for joint communication and sensing (JCS) reference signals. The configuration information may include resources for reference signal transmission and resources for measurement reporting. The WTRU may be further configured to receive, from the BS, an indication to activate a subset of the resources for JCS reference signal transmission. The WTRU may be further configured to transmit, a plurality of JCS reference signals using the activated subset of resources for reference signal transmission. The WTRU may be further configured to measure, via a plurality of Rx beams, a backscatter power associated with each of the transmitted plurality of JCS reference signals. The WTRU may be further configured to calculate beam blockage statistics based on the measured backscatter power.
-
公开(公告)号：US20220070766A1
公开(公告)日：2022-03-03
申请号：US17414159
申请日：2019-12-17
申请人： IDAC HOLDINGS, INC.
发明人： Tanbir Haque , Hussain E. Elkotby , Ravikumar V. Pragada , Patrick Cabrol , Anantharaman Balasubramanian , Marian Rudolf , William E. Lawton , Muhammad U. Fazili
摘要： Approaches for idle mode operations for wireless transmit/receive units (WTRUs) with zero-energy (ZE) receivers are disclosed herein. A WTRU operating in idle mode, may receive using the main transceiver over a Uu interface, an energy harvesting (EH) configuration for use over a ZE air interface. The main transceiver may be turned off, and the ZE receiver as part of a ZE idle mode operation, may detect, over the ZE air interface, and harvest energy from ZE reference signals. The WTRU may calculate an amount of energy harvested from the ZE reference signals over a first time period. The WTRU may calculate a ZE idle mode operation energy consumption over the first time period. On a condition that the ZE idle mode operation energy consumption is greater than the harvested energy, the main transceiver may be turned on and the WTRU may enter a Uu interface idle mode operation.
-
公开(公告)号：US20210029658A1
公开(公告)日：2021-01-28
申请号：US17044586
申请日：2019-04-03
申请人： IDAC HOLDINGS, INC.
发明人： Nagi Mahalingam , Anantharaman Balasubramanian , Mihaela Beluri , Ravikumar V. Pragada , Mahmoud Taherzadeh Boroujeni , Shahrokh Nayeb Nazar , Seyed Mohsen Hosseinian , Frank La Sita
摘要： Methods, systems, and devices for addressing timing advance (TA) in non-terrestrial network communication is disclosed herein. A wireless transmit and receive unit (WTRU) may receive system information from a base station attached to an airborne or spaceborne vehicle that indicates a physical random access channel (PRACH) resource. The WTRU may determine a timing offset based on a plurality of information, such as the location information and the system information. The WTRU may transmit a preamble using the timing offset via the PRACH resource. The base station may receive the preamble and send a random access response (RAR) that includes, for example, a TA command. The WTRU may receive the RAR including the TA command and combine the timing offset with the TA command to determine an actual TA, after which the WTRU may use the actual TA for uplink transmissions.
-
4.发明授权公开(公告)号：US10536312B2
公开(公告)日：2020-01-14
申请号：US15780326
申请日：2016-12-02
申请人： IDAC HOLDINGS, INC.
发明人： Kyle Jung-Lin Pan , Mihaela C. Beluri , Ravikumar V. Pragada , Erdem Bala , Yugeswar Deenoo , Liangping Ma , Tao Deng , Vincent Roy
摘要： Systems, methods, and instrumentalities are disclosed for generating, transmitting, and/or receiving a hybrid spread waveform. The hybrid spread waveform may include a data portion and a hybrid guard interval (HGI) portion. The HGI portion may include a fixed prefix portion or a fixed suffix portion, and an adaptive low power tail (LPT) portion. The fixed prefix portion or the fixed suffix portion is a low power cyclic prefix (LPCP). The LPCP may be generated at least based on at least the channel delay spread and a power regrowth length. The adaptive LPT portion may be generated using a zero tail (ZT). The LPT is generated by inserting zeros at IFFT or DFT processing stage. A part of the adaptive LPT portion is used to carry data or control information. A waveform may be switched between a hybrid spread waveform and a fixed-CP waveform, e.g., via control signaling.
-
公开(公告)号：US20190394764A1
公开(公告)日：2019-12-26
申请号：US16560932
申请日：2019-09-04
申请人： IDAC HOLDINGS, INC.
IPC分类号： H04W72/04
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 tray 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.
-
公开(公告)号：US10448404B2
公开(公告)日：2019-10-15
申请号：US16184403
申请日：2018-11-08
申请人： IDAC HOLDINGS, INC.
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 tray 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.
-
公开(公告)号：US20190098614A1
公开(公告)日：2019-03-28
申请号：US16184403
申请日：2018-11-08
申请人： IDAC HOLDINGS, INC.
CPC分类号： H04W72/046 , H04W72/1289 , H04W84/045
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 tray 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.
-
8.发明申请公开(公告)号：US20180309496A1
公开(公告)日：2018-10-25
申请号：US15769133
申请日：2016-11-10
申请人： IDAC HOLDINGS, INC.
发明人： Moon-il Lee , Yugeswar Deenoo , Tao Deng , Janet A. Stern-Berkowitz , Ravikumar V. Pragada , Mihaela C. Beluri
CPC分类号： H04B7/088 , H04B7/0408 , H04B7/0628 , H04B7/086 , H04L5/0014 , H04L5/0023 , H04L5/0044 , H04L5/0053
摘要： A wireless transmit/receive unit (WTRU) configured to perform wireless communications in higher frequency bands (e.g., above 6 GHz) using a fallback scheme is provided. The WTRU includes a receiver configured to receive, in a time transmission interval (TTI), at least one control signal and a first data signal using a first beam associated with a first beam identifier (ID) and a second data signal, subsequent to the first data signal, using a second beam associated with a second beam ID different from the first beam ID, such that one of the at least one control signal indicates the second beam ID; and a processor configured to switch a receive beam of the receiver from the first beam to the second beam based on the second beam ID to receive the second data signal.
-
公开(公告)号：US20180213413A1
公开(公告)日：2018-07-26
申请号：US15934442
申请日：2018-03-23
申请人： IDAC Holdings, Inc.
CPC分类号： H04W16/28 , H04B7/0695 , H04B7/088 , H04W24/08 , H04W36/0083 , H04W36/0094 , H04W36/30 , H04W64/00 , H04W64/003 , H04W72/048 , H04W72/085 , H04W88/08
摘要： A wireless transmit/receive unit (WTRU) may receive a request to perform directional signal measurements for received signals. The WTRU may transmit, based on the request and position information associated with the WTRU, directional signal measurements to facilitate generation of a directional radio environment map (DREM). The WTRU may receive a request to switch beams based on the DREM.
-
公开(公告)号：US20230254899A1
公开(公告)日：2023-08-10
申请号：US17765498
申请日：2020-10-02
申请人： IDAC HOLDINGS, INC.
发明人： Arnab Roy , Sanjay Goyal , Kevin T. Wanuga , Onur Sahin , Ravikumar V. Pragada , Alpaslan Demir , Mihaela C. Beluri
IPC分类号： H04W74/08
CPC分类号： H04W74/0833
摘要： Systems, devices and methods for a backscatter measurement based multiple RACH preamble transmissions are disclosed. A WTRU may receive a JCS-RS configuration comprising a minimum RACH preamble retransmission interval. The JCS-RS configuration may comprise a JCS backscatter power fraction (λ) of the WTRU transmit power (PTx). The WTRU may transmit a RACH preamble in a RACH occasion corresponding to a preferred SS/PBCH Index using an initial WTRU transmit beam, having an associated first RA-RNTI value. The backscatter power (PBS) may be measured using the WTRU receive beam corresponding to the WTRU transmit beam used for the RACH preamble transmission. On a condition that PBS>λPTx, the WTRU may retransmit the RACH preamble after a retransmission interval, on resources associated with a second RA-RNTI value. The WTRU may be configured for monitoring the PDCCH common search space with the first RA-RNTI and the second RA-RNTI, for respective RAR window intervals
-
-
-
-
-
-
-
-
-
搜索结果
48 条记录 (耗时 0.034 秒)
