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公开(公告)号:US20220256404A1
公开(公告)日:2022-08-11
申请号:US17731102
申请日:2022-04-27
Applicant: QUALCOMM Incorporated
Inventor: Alfred Asterjadhi , George Cherian , Abhishek Pramod Patil , Venkata Ramanan Venkatachalam Jayaraman , Yan Zhou
Abstract: This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media for one or more wireless devices to gain access to a wireless channel of a radio frequency spectrum band. In some aspects, a recurring coordinated medium interval is defined in the time domain and associated with the wireless channel. The coordinated medium interval includes a first time period, which may be referred to as a common reservation window, and a second time period, which may be referred to as a scheduled medium access window. During the first time period, access points (APs) attempting to gain access to the wireless channel may transmit reservation signals to reserve one or more scheduled service periods within the second time period of the same coordinated medium interval. The scheduled service periods reserved by an individual AP may be used for UL/DL communications between that AP and its associated stations (STAs).
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公开(公告)号:US11412501B2
公开(公告)日:2022-08-09
申请号:US17003502
申请日:2020-08-26
Applicant: QUALCOMM Incorporated
Abstract: Methods, systems, and devices for wireless communications are described. A base station and a user equipment (UE) with a defined capability may communicate using beamformed wireless communications. The defined capability may be that the UE may support fewer activated physical downlink shared channel (PDSCH) transmission configuration indicator (TCI) states than activated control resource set (CORESET) TCI states. The defined capability UE and the base station may implement techniques to determine which TCI state to use when the UE supports fewer activated PDSCH TCI states than activated CORESET TCI states. The UE may use an activated PDSCH TCI state selected by a media access control (MAC) control element (CE), an activated TCI state of a specific CORESET, a TCI indicated in scheduling downlink control information, or an activated PDSCH TCI state selected by a radio resource control (RRC) message.
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公开(公告)号:US20220225385A1
公开(公告)日:2022-07-14
申请号:US17537284
申请日:2021-11-29
Applicant: QUALCOMM Incorporated
Inventor: Hamed Pezeshki , Yan Zhou , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive control signaling indicating a beam update configuration that defines a timing for updating a common beam for communications with the UE in relation to a communication and in response to a downlink control information (DCI) message that schedules the communication and indicates an update to the common beam. In some aspects, the common beam is shared across a set of channels, a set of reference signals, or both. The UE may then receive, from a base station, the DCI message that schedules the communication and indicates the update to the common beam. The UE may then perform at least one beam switching procedure to update the common beam at the UE based on receiving the DCI message and in accordance with the beam update configuration.
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公开(公告)号:US20220225249A1
公开(公告)日:2022-07-14
申请号:US17518039
申请日:2021-11-03
Applicant: QUALCOMM Incorporated
Inventor: Kiran Venugopal , Yan Zhou , Tao Luo , Junyi Li
IPC: H04W56/00
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a serving base station, a message indicating a set of synchronization signal block (SSB) resources for synchronization signal transmission by the serving base station and by one or more neighbor base stations. The SSB resources may include a first portion of resources associated with the serving base station and additional portions of resources associated with the one or more neighbor base stations. The UE may identify two or more symbols which are adjacent to consecutive SSB resources of the set of SSB resources, and exclude the two or more symbols from being used for communications between the UE and the serving base station based on the two or more symbols being adjacent to consecutive SSB resources. The UE may communicate with the serving base station on symbols other than the two or more symbols.
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公开(公告)号:US20220225241A1
公开(公告)日:2022-07-14
申请号:US17457351
申请日:2021-12-02
Applicant: QUALCOMM Incorporated
Inventor: Tianyang Bai , Yan Zhou , Junyi Li , Tao Luo
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for wireless communication. In one aspect, a base station (BS) transmits a message to a UE indicating a designation of a signal as a PLRS. The designation of the signal as the PLRS is associated with an application time interval, and after expiration of the application time interval, the BS receives an uplink signal from the UE having a transmit power level associated with the signal.
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公开(公告)号:US20220217725A1
公开(公告)日:2022-07-07
申请号:US17140817
申请日:2021-01-04
Applicant: QUALCOMM Incorporated
Inventor: Tianyang Bai , Yan Zhou , Tao Luo , Junyi Li
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for a user equipment (UE) to receive a message including transmission configuration indicator (TCI) states information associated with beam information for uplink or downlink resources. The UE may identify multiple channels or reference signals, or both, to which a TCI state is to be applied based on associated indications included with the TCI state information. In some examples, the TCI state information may also include indications of source reference signals for quasi co-location (QCL) assumptions for the indicated channels or reference signals. Based on applying the TCI state, the UE may determine beam information for uplink or downlink resources and may communicate with the base station accordingly.
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公开(公告)号:US11382068B2
公开(公告)日:2022-07-05
申请号:US16837821
申请日:2020-04-01
Applicant: QUALCOMM Incorporated
Inventor: Yan Zhou , Tao Luo , Juan Montojo , Xiaoxia Zhang
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information identifying a semi-persistent scheduling (SPS) configuration for a broadcast or multicast (broadcast/multicast) communication. The UE may receive the broadcast/multicast communication in accordance with the SPS configuration. Numerous other aspects are provided.
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公开(公告)号:US11375547B2
公开(公告)日:2022-06-28
申请号:US16582696
申请日:2019-09-25
Applicant: QUALCOMM Incorporated
Inventor: Yan Zhou , Tao Luo , Makesh Pravin John Wilson , Xiaoxia Zhang , Xiao Feng Wang
Abstract: Aspects of the present disclosure provide techniques for tunneling control information associated with random access procedure (RACH) from a fifth generation (5G) new radio (NR) base station (e.g., secondary base station (SgNB)) to the user equipment (UE) via long term evolution (LTE) master base station (e.g., “MeNB”) in order to extend the coverage of the SgNB. The tunneled PDCCH control information may include one or more of frequency domain resource assignment, time domain resource assignment (e.g., physical downlink shared channel (PDSCH) scheduled slot index, start symbol index and duration in the slow), and/or modulation coding scheme (MCS).
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公开(公告)号:US20220191850A1
公开(公告)日:2022-06-16
申请号:US17118503
申请日:2020-12-10
Applicant: QUALCOMM Incorporated
Inventor: Tianyang Bai , Yan Zhou , Tao Luo , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a control message including a first indication for updating a beam for communicating with the base station to a first beam and a second indication for configuring a set of reference signals for measuring the first beam. The UE may measure the first beam using the reference signals. The UE may communicate with the base station based on the beam measurement. The control message may include a format for jointly indicating beam updates and reference signal configurations.
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公开(公告)号:US11362770B2
公开(公告)日:2022-06-14
申请号:US16737258
申请日:2020-01-08
Applicant: QUALCOMM Incorporated
Inventor: Zhifei Fan , Tao Luo , Xiaoxia Zhang , Arumugam Chendamarai Kannan , Jing Sun , Makesh Pravin John Wilson , Yan Zhou , Wooseok Nam
Abstract: Wireless communications systems and methods related to providing feedback for DL data are provided. A first wireless communication device communicates with a second wireless communication device, a first communication signal. The first wireless communication device communicates the second wireless communication device, a grant for retransmitting a feedback associated with the first communication signal. The first wireless communication device communicates with the second wireless communication device, the feedback based on the grant.
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