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171.
公开(公告)号:US20220182894A1
公开(公告)日:2022-06-09
申请号:US17112931
申请日:2020-12-04
Applicant: QUALCOMM Incorporated
Inventor: Jelena Damnjanovic , Tao Luo , Aleksandar Damnjanovic , Junyi Li , Juan Montojo , Ozcan Ozturk
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for using layer one (L1) or layer two (L2) signaling to indicate a primary cell (PCell) or primary secondary cell (PSCell) to a user equipment (UE). The use of L1 or L2 signaling to indicate a PCell or PSCell may be referred to as L1 or L2 mobility and may lower the latency at the UE associated with transitioning to communicating with the PCell or PSCell. A UE may receive radio resource control (RRC) signaling from a base station indicating a set of cells configured for L1 or L2 mobility and indicating a list of candidate cells for a PCell or PSCell. The UE may then receive L1/L2 signaling from the base station identifying the PCell or indicating activation of the PSCell.
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172.
公开(公告)号:US20220030519A1
公开(公告)日:2022-01-27
申请号:US17379648
申请日:2021-07-19
Applicant: QUALCOMM Incorporated
Inventor: Shanyu Zhou , Jelena Damnjanovic , Arumugam Chendamarai Kannan , Tao Luo , Gabi Sarkis
Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify one or more user equipments (UEs) subscribed to receive broadcast transmissions. The base station may determine a first subset of the UEs is to receive broadcast transmissions via a direct link and a second subset of the UEs is to receive the packets from the broadcast transmission via a sidelink connection based on selection criteria. The base station may transmit an indication that the broadcast transmissions are to be received via either the direct link or sidelink connection to at least one of the first subset of UEs or the second subset of UEs. The base station may transmit the broadcast transmissions to the first subset of UEs via direct links, and the first subset of UEs may transmit the broadcast transmissions to one or more other UEs via sidelink connections.
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公开(公告)号:US20210352701A1
公开(公告)日:2021-11-11
申请号:US17234128
申请日:2021-04-19
Applicant: QUALCOMM Incorporated
Inventor: Mahmoud Taherzadeh Boroujeni , Tao Luo , Xiaoxia Zhang , Jing Sun , Peter Gaal , Junyi Li , Juan Montojo , Jelena Damnjanovic , Iyab Issam Sakhnini
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor a unicast channel for a first downlink transmission from a base station using a first semi-persistent scheduling (SPS) configuration. The UE may receive downlink control information (DCI) from the base station indicating a second SPS configuration associated with a different coverage level than the first SPS configuration. In some cases, the DCI may be DCI that is common to a set of UEs. Here, the DCI may indicate the second SPS configuration and the UE may identify a set of parameters associated with the second SPS configuration based on a radio resource control (RRC) message received prior to the DCI. Based on receiving the indication of the second SPS configuration, the UE may monitor the unicast channel for a second downlink transmission from the base station using the second SPS configuration.
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公开(公告)号:US11172370B2
公开(公告)日:2021-11-09
申请号:US16411428
申请日:2019-05-14
Applicant: QUALCOMM Incorporated
Inventor: Madhavan Srinivasan Vajapeyam , Jelena Damnjanovic , Aleksandar Damnjanovic , Tao Luo , Jing Sun , Taesang Yoo , Yongbin Wei
Abstract: Methods, systems, and devices for wireless communication are described. Discontinuous reception (DRX) operation may be configured differently on enhanced component carriers (eCCs) than on other component carriers, including a primary cell (PCell). In some cases, a user equipment (UE) may be configured with several different eCC DRX modes. An eCC DRX configuration may, for example, be coordinated with downlink (DL) transmission time interval (TTI) scheduling so each DRX ON duration may correspond to a DL burst duration of the corresponding eCC. The eCC DRX ON durations may also be scheduled according to hybrid automatic repeat request (HARQ) process scheduling. In some examples, eCC DRX ON durations may be based on listen-before-talk (LBT) procedures. In some cases, eCC DRX ON durations may be configured to contain an uplink (UL) burst to enable channel state information (CSI) reporting. The eCC DRX may also be configured to minimize interruption of the PCell.
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公开(公告)号:US20210337586A1
公开(公告)日:2021-10-28
申请号:US17215601
申请日:2021-03-29
Applicant: QUALCOMM Incorporated
Inventor: Iyab Issam Sakhnini , Tao Luo , Junyi Li , Olufunmilola Omolade Awoniyi-Oteri , Qiang Wu , Jelena Damnjanovic , Wanshi Chen , Peter Gaal , Juan Montojo , Yan Zhou , Wooseok Nam , Hwan Joon Kwon , Mahmoud Taherzadeh Boroujeni
Abstract: Methods, systems, and devices for wireless communications are described. A base station may dynamically cancel and reschedule configured transmission occasions for communicating with a user equipment (UE). The transmission occasions may be configured according to a semi-persistent scheduling (SPS) configuration (e.g., for downlink transmissions) or a configured grant (CG) configuration (e.g., for uplink transmissions). The base station may transmit a dynamic grant to the UE that indicates a cancellation of a transmission occasion and schedules a dynamic transmission occasion for communicating data scheduled for transmission at the canceled transmission occasion. In some examples, the cancellation in the grant may be explicit or implicit.
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公开(公告)号:US20210329691A1
公开(公告)日:2021-10-21
申请号:US17231805
申请日:2021-04-15
Applicant: QUALCOMM Incorporated
Inventor: Jing Sun , Xiaoxia Zhang , Tao Luo , Mahmoud Taherzadeh Boroujeni , Juan Montojo , Peter Gaal , Jelena Damnjanovic
Abstract: Methods, systems, and devices for wireless communications are described in which a base station and a user equipment (UE) may perform beam refinement within a random access procedure. A UE may transmit a random access request to the base station and, in response thereto, the base station may transmit a control channel order to the UE that indicates to transmit a modified random access request. Resources for the modified random access request may be determined based on the random access request, the control channel order, configured resources, or combinations thereof. The base station may monitor for the modified random access request using different beamforming parameters and determine a refined beam for a subsequent transmission in the random access procedure. The base station may use the refined beam to transmit a random access response to the UE, and complete the access procedure.
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公开(公告)号:US20210266886A1
公开(公告)日:2021-08-26
申请号:US17181803
申请日:2021-02-22
Applicant: QUALCOMM Incorporated
Inventor: Yi Huang , Peter Gaal , Wanshi Chen , Jelena Damnjanovic , Hwan Joon Kwon , Wei Yang , Sony Akkarakaran , Seyedkianoush Hosseini
Abstract: Methods, systems, and devices for wireless communications are described. Techniques are described for providing additional feedback about a channel as part of a feedback procedure. Feedback information associated with a feedback procedure may include two stages of feedback information. Each stage of feedback information may include a different type of information. A first stage may include acknowledgements or negative acknowledgements for each feedback process supported. A second stage may include additional feedback information related to any downlink transmission that was not received successfully and thus included a negative acknowledgement in the first stage. Additionally, or alternatively, the second stage may include additional feedback information related to any downlink transmission that was received successfully and thus included an acknowledgement in the first stage. Techniques are also described for handling the variable size of the feedback information included in the two stages.
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公开(公告)号:US20210212044A1
公开(公告)日:2021-07-08
申请号:US17120560
申请日:2020-12-14
Applicant: QUALCOMM Incorporated
Inventor: Jung Ho Ryu , Sony Akkarakaran , Junyi Li , Tao Luo , Ling Ding , Kapil Gulati , Jelena Damnjanovic , Mohmoud Taherzadeh Boroujeni
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for determining shared resources associated with one or more user equipments (UEs) for sidelink communications, including control resources and data resources. A first UE may determine a first set of control resources in a first frequency band corresponding to a first group of UEs including the first UE. The first UE may transmit a sidelink request to reserve a subset of data resources to a second UE in the first group of UEs. The first UE may monitor for one or more sidelink responses indicating a positive sidelink response to the sidelink request, a negative sidelink response to the sidelink request, or both. The first UE may determine, based on monitoring for the one or more sidelink responses, whether to transmit a sidelink confirmation indicating a reservation of the data resources to the second UE.
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公开(公告)号:US20210212043A1
公开(公告)日:2021-07-08
申请号:US17097624
申请日:2020-11-13
Applicant: QUALCOMM Incorporated
Inventor: Jung Ho Ryu , Sony Akkarakaran , Tao Luo , Junyi Li , Jelena Damnjanovic , Mahmoud Taherzadeh Boroujeni , Ling Ding , Kapil Gulati
Abstract: Methods, systems, and devices for wireless communications are described. A set of user equipments (UEs) may communicate with each other on communication links using data resources from a pool of shared resources. The UEs may be configured to multiplex control resources with data resources of a shared resource pool. In some cases, a UE may communicate, in control resources, control signaling to reserve data resources of a shared resource pool. After transmitting the request, the UE may communicate data in one or more data resources. The UE may communicate the data using transmission components while concurrently processing control signaling using other components.
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公开(公告)号:US20210160820A1
公开(公告)日:2021-05-27
申请号:US17095627
申请日:2020-11-11
Applicant: QUALCOMM Incorporated
Inventor: Jung Ho Ryu , Sony Akkarakaran , Junyi Li , Tao Luo , Jelena Damnjanovic , Kapil Gulati , Juan Montojo , Ling Ding , Mahmoud Taherzadeh Boroujeni , Hong Cheng , Jingchao Bao
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for determining shared resources associated with one or more user equipments (UEs) for sidelink communications, including control resources and data resources. A first UE may transmit a sidelink request to reserve a subset of data resources to a second UE, and may monitor for one or more sidelink responses indicating a positive sidelink response to the sidelink request, a negative sidelink response to the sidelink request, or both. The second UE may transmit a positive sidelink response if it is available for a data transmission. A third UE may transmit a negative sidelink response if it objects to the data transmission. The first UE may determine, based on monitoring for the one or more sidelink responses, whether to transmit a sidelink confirmation indicating a reservation of the subset of the data resources to the second UE.
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