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公开(公告)号:US20210234637A1
公开(公告)日:2021-07-29
申请号:US17248506
申请日:2021-01-27
Applicant: QUALCOMM INCORPORATED
Inventor: Mahmoud Taherzadeh Boroujeni , Sony Akkarakaran , Tao Luo , Yan Zhou , Hung Dinh Ly , Wooseok Nam
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may attempt to connect to a base station using a random access procedure. During the random access procedure, the base station may transmit control information associated with a random access response (RAR) during a RAR window. The UE may attempt to receive a single instance of the control information and, in some cases, may be unable to receive and decode the single instance of the control information. The base station may configure one or more RAR windows (or segment(s) thereof) to support transmitting repeating instances of the control information and/or RAR. The UE may identify a quantity of instances of the repeated control information and combine the instances. The UE may successfully decode the combined instances of control information and identify a location for receiving the RAR.
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262.
公开(公告)号:US20210227410A1
公开(公告)日:2021-07-22
申请号:US17148544
申请日:2021-01-13
Applicant: QUALCOMM Incorporated
Inventor: Huilin Xu , Peter Pui Lok Ang , Seyedkianoush Hosseini , Krishna Kiran Mukkavilli , Hung Dinh Ly , Punyaslok Purkayastha , Yi Huang , Jing Lei
Abstract: The present disclosure relates to physical downlink control channel (PDCCH) monitoring. For example, a method of wireless communication includes determining, by a user equipment (UE), whether one or more conditions is satisfied. The method also include performing, by the UE, physical downlink control channel (PDCCH) monitoring associated with a first cell based on a determination that the one or more conditions is satisfied. Other aspects and features are also claimed and described.
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公开(公告)号:US11050598B2
公开(公告)日:2021-06-29
申请号:US16199958
申请日:2018-11-26
Applicant: QUALCOMM Incorporated
Inventor: Peter Gaal , Valentin Alexandru Gheorghiu , Timo Ville Vintola , Hung Dinh Ly , Yang Yang , Jing Jiang , Heechoon Lee
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive carrier information identifying at least one of: an initial absolute frequency for a carrier, a tone boundary offset value for the carrier, a number of resource blocks included in the carrier, or a frequency offset from a reference frequency; and determine a resource allocation of the carrier based at least in part on the carrier information and a subcarrier spacing of the user equipment. Numerous other aspects are provided.
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公开(公告)号:US11039399B2
公开(公告)日:2021-06-15
申请号:US16735318
申请日:2020-01-06
Applicant: QUALCOMM Incorporated
Inventor: Jing Lei , Jay Kumar Sundararajan , Linhai He , Seyong Park , Yi Huang , Hung Dinh Ly , Tingfang Ji , Joseph Binamira Soriaga , Naga Bhushan
IPC: H04W52/14 , H04W74/08 , H04W52/24 , H04L5/00 , H04W52/10 , H04W72/04 , H04W76/27 , H04W52/36 , H04W24/08 , H04L1/00
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive system information from a base station indicating at least one configuration rule for power control parameter setting for random access. The UE may measure one or more reference signals and may estimate a path loss of wireless communications between the base station and the UE based on the measured reference signals. The UE may select one or more parameters from one or more sets of parameters indicated in the configuration rule. The UE may select a first transmit power for a preamble of a random access message and a second transmit power for a payload of the random access message, based on the estimated path loss and the configuration rule for power control parameters and power ramping procedures. The UE may transmit the random access message according to the selected first and second transmit powers.
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公开(公告)号:US10985964B2
公开(公告)日:2021-04-20
申请号:US16126832
申请日:2018-09-10
Applicant: QUALCOMM Incorporated
Inventor: Chinmay Shankar Vaze , Hung Dinh Ly , Alexei Yurievitch Gorokhov , Nathan Yee , Hari Sankar , Raghu Narayan Challa
Abstract: Techniques are described herein that allow a user equipment (UE) to configure a subcarrier spacing value while monitoring synchronization signals of neighboring cells. In some wireless communication systems, synchronization signals in given radio frequency spectrum band may be transmitted using one of a plurality of different subcarrier spacings. In some cases, a network entity, such as a base station, may transmit an indication to the UE that indicates the subcarrier spacing used by a cell to transmit a specific set of synchronization signals. In some cases, the UE may select a subcarrier spacing based on a database of subcarrier spacings stored locally by the UE. In some cases, the UE may select the subcarrier spacing based on a predetermined configuration.
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公开(公告)号:US20210084680A1
公开(公告)日:2021-03-18
申请号:US17023840
申请日:2020-09-17
Applicant: QUALCOMM Incorporated
Inventor: Jing Lei , Wanshi Chen , Linhai He , Hung Dinh Ly , Seyong Park
Abstract: Methods, systems, and devices for wireless communications are described that relate to a two-step random access procedure. Generally, the described techniques allow different configurations for a first message of a random access procedure depending on a connected-state of the user equipment (UE) performing the random access procedure. A base station may transmit configuration information to the UE and the UE may use the configuration information to determine resources, coding, block size, or other factors for transmitting the first message based on the radio resource control (RRC) connected state of the UE. The UE may then monitor for a random access response from the base station based on the first message from the UE.
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公开(公告)号:US20210076269A1
公开(公告)日:2021-03-11
申请号:US17012911
申请日:2020-09-04
Applicant: QUALCOMM Incorporated
Inventor: Olufunmilola Omolade Awoniyi-Oteri , Tao Luo , Yan Zhou , Wooseok Nam , Hung Dinh Ly
IPC: H04W36/00 , H04W28/04 , H04W36/08 , H04W36/30 , H04L29/06 , H04L1/08 , H04L12/24 , H04W76/20 , H04W28/06
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a dual active link handover procedure from a source base station to a target base station. During the dual active link handover procedure, the UE may have connections to both of the base stations concurrently. In such cases, transmission opportunities for communicating with the base stations may conflict. To handle conflicting transmission opportunities, the UE may drop a monitoring occasion or a packet reception for a base station based on prioritization rules. In some cases, to mitigate packet losses, the base station may configure re-transmissions or slot aggregation to provide the UE with additional opportunities to receive a packet. Additionally or alternatively, the UE may transmit a notification message to a base station indicating dropped monitoring occasions or packets.
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公开(公告)号:US10945286B2
公开(公告)日:2021-03-09
申请号:US16529656
申请日:2019-08-01
Applicant: QUALCOMM incorporated
Inventor: Hung Dinh Ly , Heechoon Lee
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may observe control channel monitoring occasions (PMOs) corresponding to different beams configured by a base station. The UE may identify a PMO in a system information window to monitor for downlink control information scheduling a shared channel carrying a system information message. The UE may receive an indication of which synchronization signal/physical broadcast channel (SS/PBCH) blocks are actually transmitted by the base station and determine corresponding PMOs within the system information window. The UE may then monitor for the downlink control channel within the system information window during the corresponding PMOs. The base station and the UE may also implement techniques for system information message repetition within a system information window.
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公开(公告)号:US10812210B2
公开(公告)日:2020-10-20
申请号:US16121523
申请日:2018-09-04
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh Ly , Tao Luo , Heechoon Lee
Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a group set of at least one synchronization signal (SS) block group to be transmitted within a SS burst set. The base station may identify a group transmission configuration index associated with the group set, and then transmit the group transmission configuration index to a user equipment. The base station may also include an indication of which SS blocks in each transmitted SS block group are transmitted. A user equipment (UE) may determine transmitted SS blocks based on the group set index or the indication of which SS blocks in each transmitted SS block group are transmitted.
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公开(公告)号:US20200322926A1
公开(公告)日:2020-10-08
申请号:US16834759
申请日:2020-03-30
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh Ly , Jing Lei , Wanshi Chen
Abstract: This disclosure describes methods, devices, and systems for techniques related to random access procedures, such as a two-step random access procedure. Generally, the described techniques support physical uplink shared channel (PUSCH) occasion (PO) aggregation in random access procedures, including aggregation configurations and communication schemes that support enhanced data transmissions, such as small data transmissions, in random access procedures. In some examples, the described techniques may include aggregating POs in a time domain, or a frequency domain, or both. A device, such as a user equipment (UE) may aggregate, in one or more of a time domain or a frequency domain, multiple POs of a set of POs, and transmit, to a device such as a base station, a random access payload of a random access message on a PUSCH using time and frequency resources of the aggregated multiple POs.
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