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公开(公告)号：US10893544B2
公开(公告)日：2021-01-12
申请号：US16276364
申请日：2019-02-14
发明人： Sami-Jukka Hakola , Emad Farag , Timo Koskela , Mihai Enescu
IPC分类号： H04W74/08 , H04B7/06 , H04L5/00 , H04L1/00 , H04B7/0408 , H04W56/00 , H04B7/0413
摘要： A method, apparatus, and a computer-readable storage medium for beam refinement of a two-step random access channel (RACH) procedure are provided. In some implementations, the method may include receiving a plurality of synchronization signal blocks (SSBs), a plurality of channel state information-reference signals (CSI-RSs) associated with each of the plurality of synchronization signal blocks (SSBs), and random access channel (RACH) configuration data from a gNB. The method may further include transmitting a first message of the two-step random access channel (RACH) procedure to the gNB, the first message including a first portion and a second portion. The first portion includes a preamble associated with a selected channel state information-reference signal (CSI-RS) of the plurality of channel state information-reference signals (CSI-RSs) and the second portion includes data associated with the preamble, and the data transmitted using pre-configured or pre-allocated resources.
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公开(公告)号：US20200280912A1
公开(公告)日：2020-09-03
申请号：US16645688
申请日：2018-08-29
发明人： Sami Hakola , Jorma Kaikkonen , Emad Farag
摘要： Various communication systems may benefit from improved cell selection. For example, it may be helpful to improve cell selection in new radio systems based on individual synchronization signal blocks meeting specific thresholds. A method may include measuring at a user equipment a cell quality of one or more cells. The method may also include detecting at the user equipment synchronization signal blocks in the one or more cells. In addition, the method may include determining at the user equipment that the synchronization signal blocks do not meet a random access channel resource selection threshold. Further, the method may include selecting at the user equipment only random access channel resources that correspond to the synchronization signal blocks meeting a cell selection threshold.
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公开(公告)号：US20190313400A1
公开(公告)日：2019-10-10
申请号：US16367942
申请日：2019-03-28
发明人： Emad Farag , Volker Braun , Karol Schober
摘要： A method and apparatus for implicitly determining a PUCCH resource. The invention allows for flexible selection of a PUCCH resource in the PUCCH resource subset for configurations of PDCCH resources without collisions through the use of indices for control channel element subsets.
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公开(公告)号：US20180324786A1
公开(公告)日：2018-11-08
申请号：US15969884
申请日：2018-05-03
发明人： Kari Hooli , Esa Tapani Tiirola , Emad Farag
IPC分类号： H04W72/04
CPC分类号： H04W72/0413 , H04L5/0055 , H04W72/0406
摘要： A technique includes determining, by a user device, a set of uplink control channel resources out of a plurality of predetermined sets of uplink control channel resources, before the user device has received a user device-specific configuration of uplink control channel resources; selecting, by the user device, an uplink control channel resource of the determined set of uplink control channel resources; and transmitting, by the user device, control information via the selected uplink control channel resource.
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公开(公告)号：US11290220B2
公开(公告)日：2022-03-29
申请号：US16367942
申请日：2019-03-28
发明人： Emad Farag , Volker Braun , Karol Schober
摘要： A method and apparatus for implicitly determining a PUCCH resource. The invention allows for flexible selection of a PUCCH resource in the PUCCH resource subset for configurations of PDCCH resources without collisions through the use of indices for control channel element subsets.
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公开(公告)号：US11445436B2
公开(公告)日：2022-09-13
申请号：US16645688
申请日：2018-08-29
发明人： Sami Hakola , Jorma Kaikkonen , Emad Farag
摘要： Various communication systems may benefit from improved cell selection. For example, it may be helpful to improve cell selection in new radio systems based on individual synchronization signal blocks meeting specific thresholds. A method may include measuring at a user equipment a cell quality of one or more cells. The method may also include detecting at the user equipment synchronization signal blocks in the one or more cells. In addition, the method may include determining at the user equipment that the synchronization signal blocks do not meet a random access channel resource selection threshold. Further, the method may include selecting at the user equipment only random access channel resources that correspond to the synchronization signal blocks meeting a cell selection threshold.
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公开(公告)号：US20220124816A1
公开(公告)日：2022-04-21
申请号：US17422849
申请日：2020-02-11
摘要： A technique of performing a RACK procedure includes a framework for a two-step RACK in which a first message (MsgA) from the UE to the gNB has data carrying resources (i.e., PUSCH) is organized into a time-frequency array defined by a mapping to a plurality of preambles. Such a two-step RACK has less latency than the four-step RACK due to fewer signaling exchanges. Moreover, this two-step RACK also causes the UE to use less power due to a decreased signaling overhead.
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公开(公告)号：US20210336680A1
公开(公告)日：2021-10-28
申请号：US16625152
申请日：2018-06-26
发明人： Dan Park , Yi Zhang , De Shan Miao , Emad Farag
摘要： Certain embodiments may relate to communication systems, and, for example, some embodiments may relate to beamforming techniques. According to an embodiment, a method may include, for each PDCCH search space candidate, one or more UE beams may be configured and/or assigned that correspond to one or more of the configured beam pairs. For each PDCCH search space candidate, one or more beam pairs, based on one or more corresponding downlink RS for beam management, may correspond to a configured UE beam. The UE may detect a PDCCH. Upon detecting a PDCCH, the UE can identify one or more configured beam pairs or a default beam pair within the PDCCH search space candidates.
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公开(公告)号：US20180324852A1
公开(公告)日：2018-11-08
申请号：US15586655
申请日：2017-05-04
发明人： Vinh Van Phan , Ling Yu , Zexian Li , Bikramjit Singh , Mikko Aleksi Uusitalo , Emad Farag
CPC分类号： H04W74/02 , H04B7/02 , H04L1/00 , H04W28/0278 , H04W72/02 , H04W72/04 , H04W72/087 , H04W74/004 , H04W84/042
摘要： A user equipment (UE) selects first and second radio resources from respective first and second pools of radio resources. In one example these are primarily allocated for contention-free and scheduling-based channel access, respectively. Content to duplicate in parallel communications is selected based at least on a characteristic of uplink data waiting to be sent (such as size) and/or on the selected first and second radio resources (such as timing difference between them). The UE transmits the selected content on each of the selected first and second radio resources. In the examples the content to duplicate was selected from among the uplink data to send and a scheduling request message. In various embodiments one of these transmissions indicates it's a duplicate, and the duplicated scheduling request message is transmitted on the first resource with the uplink data. These teachings are particularly useful for URLLC data.
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公开(公告)号：US11737144B2
公开(公告)日：2023-08-22
申请号：US16606950
申请日：2018-04-26
发明人： Sami-Jukka Hakola , Emad Farag , Samuli Heikki Turtinen , Jukka Valtteri Tormalehto , Jorma Johannes Kaikkonen
IPC分类号： H04W4/00 , H04W74/08 , H04W72/044 , H04W74/00 , H04W72/53
CPC分类号： H04W74/0833 , H04W72/046 , H04W72/53 , H04W74/008
摘要： A method including, detecting, by a base station in a wireless communication system, within an RAR window, at least one of multiple first messages from a plurality of user equipments, wherein the plurality of user equipments is permitted to transmit multiple first messages within the RAR window, and wherein each first message includes a PRACH preamble; in response to receiving at least one PRACH preamble in the at least one of multiple first messages, transmitting at least one second message including an RAR downlink channel for each preamble received; receiving at least one third message, from at least one user equipment of the plurality of user equipments, including a beam connection request and transmitting at least one fourth message to the at least one user equipment on the requested beam.
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