公开(公告)号：US10959226B2

公开(公告)日：2021-03-23

申请号：US16678678

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Aleksandar Damnjanovic ,  Taesang Yoo ,  Siddhartha Mallik ,  Madhavan Srinivasan Vajapeyam ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04W72/08 ,  H04W72/14 ,  H04W88/08

Abstract: Techniques are described for preempting resource allocations to one or more UEs in the event that delay sensitive data is received. A resource allocation of a number of symbols may be granted to a first user equipment (UE) for first associated data to be transmitted. Subsequently, data may be received for a second UE that is more delay sensitive than the first data. The resource allocation to the first UE may be preempted, and resources allocated to the second UE for the second data within a variable length transmission time interval (TTI) of the resource allocation to the first UE. UEs may monitor for preemption during transmissions to other UEs in order to receive new resource grants associated with the preempted resource grant. Whether a UE monitors transmissions for preemption may be determined based on a quality or service (QoS) of the UE.

公开(公告)号：US10952084B2

公开(公告)日：2021-03-16

申请号：US16292254

申请日：2019-03-04

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W24/02 ,  H04W16/14 ,  H04W72/04 ,  H04W92/20 ,  H04W74/00 ,  H04W72/08

Abstract: Methods and apparatus related to interference management for a spectrum (e.g., unlicensed band) shared among multiple wireless communication devices (e.g., user equipment or base stations). A first wireless communication device may generate and transmit to a second wireless communication device an indication that facilitates interference management (e.g., interference estimation, suppression, and/or mitigation). For example, an interfering device may indicate its transmission characteristics to an interfered device to facilitate receiver-side interference suppression, or an interfered device may indicate its reception characteristics to an interfering device to facilitate transmitter-side interference mitigation.

公开(公告)号：US20210076421A1

公开(公告)日：2021-03-11

申请号：US17012250

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu ,  Yongbin Wei

IPC: H04W74/08 ,  H04W16/14 ,  H04W74/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may monitor for a transmission over a set of periodically scheduled resources (e.g., semi-persistently scheduled resources)) of a downlink shared channel in an unlicensed spectrum. The user equipment may receive the transmission, where the transmission indicates a channel access configuration (e.g., a listen-before-talk configuration) for accessing the unlicensed spectrum. In some cases, the transmission may include a medium access control (MAC) control element (MAC-CE) that indicates the channel access configuration. The transmission may additionally indicate at least one uplink channel over which the user equipment may transmit a message and/or a channel occupancy time associated with a successful acquisition of the unlicensed spectrum by the base station. The user equipment may transmit a message (e.g., an acknowledgement) based on the channel access configuration.

公开(公告)号：US20210007052A1

公开(公告)日：2021-01-07

申请号：US16940162

申请日：2020-07-27

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Wei Zhang ,  Aleksandar Damnjanovic ,  Juan Montojo

IPC: H04W52/02 ,  H04L5/00 ,  H04W76/28 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may monitor a narrowband (e.g., a single carrier, anchor carrier, etc.) for a control message that includes a grant for downlink data transmissions. The narrowband containing the control message may be a portion of a system bandwidth. The UE may then monitor a wideband (e.g., all or multiple carriers of the system bandwidth) for data according to the control message. Monitoring the wideband may include additional or alternate circuitry being powered (e.g., receiver circuit switching) to enable reception on an increased range of frequency spectrum. In some examples, a gap or narrowband data transmission may be scheduled between the control message and the grant to allow grant processing and receiver circuitry switching at the UE. In some cases, the control message and data transmission may be received in the same or different transmission time intervals (TTIs).

公开(公告)号：US10764775B2

公开(公告)日：2020-09-01

申请号：US15923669

申请日：2018-03-16

Applicant: QUALCOMM Incorporated

Inventor： Linhai He ,  Aleksandar Damnjanovic ,  Gavin Bernard Horn ,  Aziz Gholmieh ,  Yue Yang ,  Tao Luo ,  Sumeeth Nagaraja

IPC: H04W24/10 ,  H04W72/12 ,  H04W84/04

Abstract: Various techniques are proposed to enhance or expand the capabilities or usage of buffer status request (BSR) and scheduling request (SR) in new radio (NR) applications. In an implementation, techniques are proposed to extend the SR in long term evolution (LTE) baseline with additional information to help a base station (e.g., gNB) schedule faster and more efficiently. Moreover, a new BSR triggering condition is proposed to report new data based on particular events instead of being time-based. Modifications being proposed to both BSR and SR can be customized for different numerologies/transmission time intervals (TTIs). Modifications being proposed to SR can also be used to indicate a user equipment (UE) new beam selection after recovering from a beam failure.

公开(公告)号：US20200267745A1

公开(公告)日：2020-08-20

申请号：US16790588

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Junyi Li ,  Seyed Ali Akbar Fakoorian

IPC: H04W72/12 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A User equipment (UE) may identify a set of semi-persistent scheduled resources configured for uplink transmissions by the UE. The UE may receive, from a base station, a resource grid that indicates scheduled uplink communications for one or more other UEs. The UE may determine a set of uplink resources for the UE based on the set of semi-persistent scheduled resources and the resource grid. The UE may then transmit an uplink message to the base station via the set of uplink resources. In some cases, the UE may identify resources for the scheduled uplink communications based on the resource grid and determine a set of conditional resources available for the UE based on the resources for the scheduled uplink communications, where the set of uplink resources includes at least a portion of the set of conditional resources.

公开(公告)号：US10728852B2

公开(公告)日：2020-07-28

申请号：US15596869

申请日：2017-05-16

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Wei Zhang ,  Aleksandar Damnjanovic ,  Juan Montojo

IPC: H04W52/02 ,  H04L5/00 ,  H04W76/28 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may monitor a narrowband (e.g., a single carrier, anchor carrier, etc.) for a control message that includes a grant for downlink data transmissions. The narrowband containing the control message may be a portion of a system bandwidth. The UE may then monitor a wideband (e.g., all or multiple carriers of the system bandwidth) for data according to the control message. Monitoring the wideband may include additional or alternate circuitry being powered (e.g., receiver circuit switching) to enable reception on an increased range of frequency spectrum. In some examples, a gap or narrowband data transmission may be scheduled between the control message and the grant to allow grant processing and receiver circuitry switching at the UE. In some cases, the control message and data transmission may be received in the same or different transmission time intervals (TTIs).

公开(公告)号：US10721743B2

公开(公告)日：2020-07-21

申请号：US15954497

申请日：2018-04-16

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Tao Luo ,  Peter Gaal

IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04W16/14 ,  H04L5/14 ,  H04W74/08

Abstract: Uplink control channel management is disclosed for LTE/LTE-A communication systems with unlicensed spectrum in which two or more physical resource blocks (PRBs) are allocated for uplink control channel transmission. The uplink control information (UCI) payload may be determined based on clear channel assessment (CCA) information associated with carriers scheduled for transmission of the UCI data. With the UCI payload determined, two or more uplink control channel messages may be generated according to at least one control channel format, wherein uplink control channel messages include the UCI payload. These generated uplink control channel messages may then be transmitted over the allocated PRBs.

公开(公告)号：US10721720B2

公开(公告)日：2020-07-21

申请号：US14590592

申请日：2015-01-06

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Jelena Damnjanovic ,  Peter Gaal ,  Wanshi Chen ,  Madhavan Srinivasan Vajapeyam

IPC: H04W72/04 ,  H04L5/00 ,  H04W52/02 ,  H04W24/10 ,  H04W48/16 ,  H04L27/26 ,  H04W56/00

Abstract: Dynamic cell mode indication and reporting channel state information for dormant cells in a dual connectivity carrier aggregation environment. UEs may be configured for carrier aggregation of cells associated with non-collocated eNBs, which may include a master eNB (MeNB) and one or more secondary eNBs (SeNB), each supporting multiple carrier frequencies. Indicators of cell mode for secondary cells of the MeNB or SeNB are periodically sent using a broadcast mechanism and may configure active or dormant sub-periods within the indicated periods. The indicators may be transmitted by a primary cell for the MeNB or special secondary cell for the SeNB. Alternatively, the indicators may be transmitted by the secondary cell. When CSI measurements occur for a dormant cell, the UE may report CSI for the dormant periods, suppress CSI reporting for the dormant periods, or report some types of CSI and not others for the dormant periods.

公开(公告)号：US20200229219A1

公开(公告)日：2020-07-16

申请号：US16738867

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Jing Sun ,  Xiaoxia Zhang ,  Yongbin Wei

IPC: H04W72/12 ,  H04W74/08 ,  H04W16/14

Abstract: Autonomous uplink (AUL) for wideband new radio (NR) unlicensed (NR-U) operations is disclosed. For user equipments (UEs) that have been configured for AUL transmissions and have received an activation signal to activate the AUL capabilities, further indications may be used to enable AUL transmissions on AUL transmission opportunities (TxOPs) that overlap the timing of a current TxOP reserved by a serving base station, but that are allocated outside of the resources reserved for the current TxOP. A UE that identifies a desired, next AUL TxOP that overlaps the current base station-initiated TxOP duration, but is allocated for resources outside of the current TxOP resources determines whether it has obtained an enablement indication either directly from the serving base station or implicitly, based on current conditions at the UE. When the UE determines that it has obtained an enabling indication, it may then perform AUL transmissions via the overlapping AUL TxOP.