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公开(公告)号：US20230120035A1
公开(公告)日：2023-04-20
申请号：US18085071
申请日：2022-12-20
申请人： IDAC Holdings, Inc.
IPC分类号： H04L5/00 , H04L1/00 , H04W72/044 , H04W72/23
摘要： 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.
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2.发明授权公开(公告)号：US11546940B2
公开(公告)日：2023-01-03
申请号：US16960911
申请日：2019-01-10
申请人： IDAC HOLDINGS, INC.
发明人： Ahmad Reza Hedayat , Oghenekome Oteri , Hanqing Lou , Mahmoud Taherzadeh Boroujeni , Xiaofei Wang , Rui Yang , Shahrokh Nayeb Nazar
摘要： Methods, systems, and devices for channel access and listen-before-talk approaches for new radio operation in unlicensed bands and/or licensed bands. A gNB and a wireless transmit/receive unit (WTRU) may operate in unlicensed spectrum. The gNB may perform listen-before-talk operation, and when successful, may send a downlink control channel with a slot format indication (SFI) to the WTRU. There may also be a handshaking procedure with an exchange of a request to transmit (RTT) and a request to receive (RTR). Prior to receiving the downlink channel, the WTRU may monitor search spaces at a first level, and once the downlink channel is received the WTRU may monitor search spaces at a second level. At the end of transmission, the WTRU may revert back to monitoring search spaces at the first level. In one example, the first level may be a mini-slot level and the second level may be a slot level.
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公开(公告)号：US11224033B2
公开(公告)日：2022-01-11
申请号：US16337231
申请日：2017-09-28
申请人： IDAC Holdings, Inc.
摘要： Systems, methods, and instrumentalities are described herein that may be used to determine one or more control channel operational parameters associated with transmitting first uplink control information (UCI) and second UCI in a same control channel. The parameters may include respective repetition factors and/or spreading factors associated with the first UCI and the second UCI. The parameters may be determined based on respective characteristics of the first UCI and the second UCI. These characteristics may include reliability requirements, usage scenarios, and/or the like. Self-contained subframes may be employed to transmit data and/or control information. The control information may be transmitted using different numerologies than the data.
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公开(公告)号：US11121815B2
公开(公告)日：2021-09-14
申请号：US16346577
申请日：2017-11-02
申请人： IDAC Holdings, Inc.
发明人： Liangping Ma , Shahrokh Nayeb Nazar , Oghenekome Oteri , Seyed Mohsen Hosseinian , Mahmoud Taherzadeh Boroujeni , Frank La Sita
摘要： Systems, methods and instrumentalities are disclosed for decoding data. For example, it may be determined, in a current slot, whether data received in a previous slot is decoded successfully. The data received in the previous slot may be included in a Physical Downlink Shared Channel (PDSCH). If the data received in the previous slot is not decoded successfully, preemptive multiplexing information may be detected in a first search space. The data received in the previous slot may be decoded, for example, using detected preemptive multiplexing information. The preemptive multiplexing information may be of a current slot. The preemptive multiplexing information may be comprised in a first DCI. A second search space of the current slot may be searched. For example, the second search space may be searched for a second DCI. The first DCI and the second DCI may be different.
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公开(公告)号：US20220369374A1
公开(公告)日：2022-11-17
申请号：US17751290
申请日：2022-05-23
申请人： IDAC HOLDINGS, INC.
发明人： Mahmoud Taherzadeh Boroujeni , Shahrokh Nayeb Nazar , Ahmad Reza Hedayat , Seyed Mohsen Hosseinian
摘要： Methods and apparatus for adjusting a random access response window in a non-terrestrial network are provided. A method comprises receiving information that includes a gNodeB type parameter and a random access response window length parameter. The method further comprises determining that a gNodeB is a non-terrestrial gNodeB. The method further comprises determining a minimum round trip time (RTT). The method further comprises determining a time offset for a random access response window. The method further comprises determining a length of the random access response window based on the received random access response window length parameter and a non-terrestrial network based table. The method further comprises setting the random access response window based on the time offset. The method further comprises monitoring a downlink control channel on monitoring occasions within the random access response window.
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公开(公告)号：US20220255710A1
公开(公告)日：2022-08-11
申请号：US17726703
申请日：2022-04-22
申请人： IDAC Holdings, Inc.
发明人： Mahmoud Taherzadeh Boroujeni , Moon-il Lee , Afshin Haghighat , Shahrokh Nayeb Nazar , Oghenekome Oteri
IPC分类号： H04L5/00
摘要： A wireless transmit/receive unit (WTRU) may receive a PDCCH transmission comprising a CCE that is mapped to one or more REGs based on a CCE-to-REG mapping. The WTRU may receive the CCE-to-REG mapping that indicates a REG bundle corresponding to the CCE and use the CCE-to-REG mapping to identify the REGs for the WTRU. Depending on whether the CCE-to-REG mapping is interleaving or noninterleaving, the CCE-to-REG mapping may be based on different parameters. If the CCE-to-REG mapping is interleaving, the CCE-to-REG mapping may be based on an index associated with the CCE and a number of REGs in the REG bundle. If the CCE-to-REG mapping is noninterleaving, the CCE-to-REG mapping may be based on the index of the CCE.
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公开(公告)号：US20220159741A1
公开(公告)日：2022-05-19
申请号：US17442316
申请日：2020-03-27
申请人： IDAC Holdings, Inc.
摘要： Methods, apparatuses, systems, etc. for, and/or for use in connection with, performing network access and/or other procedures in a non-terrestrial network (NTN) of a communications system. Among the methods are methods that may be implemented in a wireless transmit/receive unit (WTRU) and may include any of receiving, from the NTN, differential delay information and physical random access channel (PRACH) configuration information indicating a set of preambles and a PRACH occasions configuration; determining a set of candidate PRACH occasions, from among a plurality of PRACH occasions of the PRACH occasion configuration, based on the differential delay information; selecting a preamble from a group of the preambles allocated to one candidate PRACH occasion of the set of candidate PRACH occasions; and transmitting the selected preamble using a PRACH resource corresponding to the one candidate PRACH occasion.
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公开(公告)号：US11316649B2
公开(公告)日：2022-04-26
申请号：US16481893
申请日：2018-02-02
申请人： IDAC Holdings, Inc.
发明人： Mahmoud Taherzadeh Boroujeni , Moon-il Lee , Afshin Haghighat , Shahrokh Nayeb Nazar , Oghenekome Oteri
IPC分类号： H04L5/00
摘要： A wireless transmit/receive unit (WTRU) may receive a PDCCH transmission comprising a CCE that is mapped to one or more REGs based on a CCE-to-REG mapping. The WTRU may receive the CCE-to-REG mapping that indicates a REG bundle corresponding to the CCE and use the CCE-to-REG mapping to identify the REGs for the SWTRU. Depending on whether the CCE-to-REG mapping is interleaving or noninterleaving, the CCE-to-REG mapping may be based on different parameters. If the CCE-to-REG mapping is interleaving, the CCE-to-REG mapping may be based on an index associated with the CCE and a number of REGs in the REG bundle. If the CCE-to-REG mapping is noninterleaving, the CCE-to-REG mapping may be based on the index of the CCE.
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公开(公告)号：US20200067680A1
公开(公告)日：2020-02-27
申请号：US16610222
申请日：2018-05-01
申请人： IDAC Holdings, Inc.
发明人： Shahrokh Nayeb Nazar , Mahmoud Taherzadeh Boroujeni , Erdem Bala , Alphan Sahin , Oghenekome Oteri , Rui Yang , Frank La Sita , Ahmad Reza Hedayat
摘要： A wireless transmit receive unit (WTRU) may be configured to transmit uplink control information such as Hybrid Automatic Retransmission Request (HARQ) Acknowledgement or Negative Acknowledgement (ACK/NACK) using a sequence. The HARQ ACK/NACK may comprise one bit or two bits of information, and the WTRU may use a cyclic shift of the sequence to transmit the HARQ ACK/NACK. The WTRU may use different cyclic shifts of the sequence to transmit different HARQ ACK/NACK values and the cyclic shifts may be separated from each other in a manner to facilitate the transmissions. The WTRU may be further configured to receive, from a physical downlink control channel (PDCCH), an indication of a resource block for transmitting the HARQ ACK/NACK.
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公开(公告)号：US20220132497A1
公开(公告)日：2022-04-28
申请号：US17572290
申请日：2022-01-10
申请人： IDAC HOLDINGS, INC.
摘要： Systems, methods, and instrumentalities are described herein that may be used to determine one or more control channel operational parameters associated with transmitting first uplink control information (UCI) and second UCI in a same control channel. The parameters may include respective repetition factors and/or spreading factors associated with the first UCI and the second UCI. The parameters may be determined based on respective characteristics of the first UCI and the second UCI. These characteristics may include reliability requirements, usage scenarios, and/or the like. Self-contained subframes may be employed to transmit data and/or control information. The control information may be transmitted using different numerologies than the data.
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