公开(公告)号：US20210250905A1

公开(公告)日：2021-08-12

申请号：US17172485

申请日：2021-02-10

Applicant: QUALCOMM INCORPORATED

Inventor： Le Liu ,  Peter Gaal ,  Ayan Sengupta ,  Alberto Rico Alvarino ,  Kazuki Takeda ,  Xiaoxia Zhang ,  Tao Luo ,  Wanshi Chen ,  Prasad Reddy Kadiri ,  Mostafa Khoshnevisan ,  Umesh Phuyal ,  Xipeng Zhu

IPC: H04W72/00 ,  H04L5/00 ,  H04W72/12 ,  H04W72/14

Abstract: Wireless communications systems and methods related to acknowledgement/negative-acknowledgement (ACK/NACK) feedback operations for multicast communications are provided. A first user equipment (UE) receives, from a base station (BS), a multicast feedback configuration indicating a first resource configuration for a negative-acknowledgement (NACK) feedback mode; and a second resource configuration for an acknowledgement/negative-acknowledgement (ACK/NACK) feedback mode. The first UE receives, from the BS, a first multicast communication. The first UE transmits, to the BS, a NACK feedback for the first multicast communication based on the first resource configuration. The first UE receives, from the BS, a second multicast communication. The first UE transmits, to the BS, an ACK feedback or a NACK feedback for the second multicast communication based on the second resource configuration.

公开(公告)号：US20210250872A1

公开(公告)日：2021-08-12

申请号：US17171696

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Le Liu ,  Peter Gaal ,  Ayan Sengupta ,  Alberto Rico Alvarino ,  Xiaoxia Zhang ,  Tao Luo ,  Wanshi Chen ,  Prasad Reddy Kadiri ,  Mostafa Khoshnevisan ,  Umesh Phuyal ,  Xipeng Zhu

IPC: H04W52/14 ,  H04W4/06 ,  H04W72/00 ,  H04W72/04 ,  H04W52/24

Abstract: Methods, systems, and devices for wireless communications are described. A base station may communicate with a user equipment (UE) or multiple UEs using multicast transmissions, and each of the multiple UEs may use shared resources to transmit feedback. A UE may receive a power control configuration associated with multicast communications and indicating one or more control parameters or weighting factors for uplink feedback. The UE may monitor a set of downlink resources for the multicast message from the base station, and may determine a decoding failure for the multicast message. The UE may determine whether to transmit uplink feedback to the base station based on the received power control parameters, such as adjusting UE transmit power using a weighting factor or other power control parameters. The UE may determine whether to transmit the uplink feedback message indicating the decoding failure based on the power control configuration.

公开(公告)号：US11071099B2

公开(公告)日：2021-07-20

申请号：US16370672

申请日：2019-03-29

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Umesh Phuyal ,  Wanshi Chen

IPC: H04W72/04 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) receive a first control format indicator (CFI) value in a message that is not carried via a physical control format indicator channel (PCFICH); may determine whether the UE is operating using at least one of a first configuration with which the first CFI value is to be used or a second configuration with which a second CFI value, indicated in the PCFICH, is to be used; and may operate using at least one of the first CFI value or the second CFI value based at least in part on determining whether the UE is operating using the at least one of the first configuration or the second configuration. Numerous other aspects are provided.

公开(公告)号：US20210194714A1

公开(公告)日：2021-06-24

申请号：US17117843

申请日：2020-12-10

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Sitaramanjaneyulu Kanamarlapudi ,  Le Liu ,  Kazuki Takeda ,  Gavin Bernard Horn ,  Xipeng Zhu ,  Umesh Phuyal ,  Alberto Rico Alvarino

IPC: H04L12/18 ,  H04W4/08 ,  H04W72/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may selectively determine to decode a downlink shared channel multicast transmission based on whether the downlink shared channel includes a retransmission of an initial multicast transmission. A base station may transmit a message in a downlink control channel to indicate if the downlink shared channel is carrying the retransmission of the initial multicast transmission. For example, the base station may transmit a group random network temporary identifier, downlink control information with a retransmission indicator bit, or both to indicate if the downlink shared channel is carrying the retransmission. In some cases, the message in the downlink control channel may be received at a layer one (L1) of the UE, and the downlink shared channel transmission may be decoded at L1 of the UE and sent to a layer two (L2) of the UE for processing.

公开(公告)号：US20210144577A1

公开(公告)日：2021-05-13

申请号：US17152655

申请日：2021-01-19

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Peter Gaal ,  Umesh Phuyal ,  Huilin Xu ,  Masato Michael Kitazoe ,  Tom Chin

IPC: H04W24/10 ,  H04W76/28 ,  H04B17/336 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement. The UE may perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration, wherein the cross-link interference signal strength measurement is performed during an intra-frequency measurement gap. The UE may transmit a report of the cross-link interference signal strength measurement to the base station.

公开(公告)号：US10999133B2

公开(公告)日：2021-05-04

申请号：US16351012

申请日：2019-03-12

Applicant: QUALCOMM Incorporated

Inventor： Prasad Kadiri ,  Umesh Phuyal ,  Luis Fernando Brisson Lopes ,  Haris Zisimopoulos ,  Gavin Bernard Horn ,  Lenaig Genevieve Chaponniere

IPC: H04L12/24 ,  H04W4/06 ,  H04W48/18 ,  H04W84/04 ,  H04W48/12

Abstract: Aspects encompassing public land mobile network (PLMN) configurations are disclosed. In one example, first and second PLMN configurations are determined, and a parameter having a common identifier between a hybrid PLMN and a PLMN from a different PLMN configuration is identified, such that the hybrid PLMN may connect with a first or second core network type. Inclusion of the common identifier is limited to either the first or second PLMN configuration via an index, and the first and second PLMN configurations are transmitted. In another example, first and second PLMN configurations are received, and a hybrid PLMN in one of the two PLMN configurations is selected. A determination is made whether to use the hybrid PLMN to connect with a first or second core network type. Whether a hybrid PLMN parameter was ascertained via the first or second PLMN configuration is reported. Other aspects, embodiments, and features are also included.

公开(公告)号：US20210119732A1

公开(公告)日：2021-04-22

申请号：US17076734

申请日：2020-10-21

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Xiaoxia Zhang ,  Prasad Reddy Kadiri ,  Gavin Bernard Horn ,  Alberto Rico Alvarino ,  Umesh Phuyal

IPC: H04L1/00 ,  H04W4/06 ,  H04L1/08 ,  H04L1/22

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently retransmitting radio link control (RLC) protocol data units (PDUs) to one or more UEs. When a user equipment (UE) fails to receive or decode an RLC PDU transmitted by a base station, the UE may transmit a status PDU to the base station indicating that the UE failed to receive or decode the RLC PDU. The base station may receive the status PDU from the UE, and the base station may generate a repair PDU that includes redundant bits of the lost PDU (e.g., the PDU that the UE failed to receive or decode). The base station may then transmit the repair PDU to the UE, and the UE may use the redundant bits in the repair PDU (e.g., in combination with buffered PDUs) to attempt to correctly decode the lost PDU.

公开(公告)号：US10972950B2

公开(公告)日：2021-04-06

申请号：US16459173

申请日：2019-07-01

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Karthika Paladugu ,  Amer Catovic ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Masato Kitazoe

IPC: H04W36/00 ,  H04W36/08 ,  H04J3/00

Abstract: The present disclosure relates to methods and devices for a handover procedure which may include a user equipment (UE), first base station, and a second base station. In one aspect, the UE can receive an indication to handover from the first base station to the second base station. The UE may then establish a connection with the second base station. In another aspect, the UE can maintain a connection with the first base station over a period of time during the handover. The UE can also communicate with the first base station and the second base station during the period of time based on a time division multiplexing (TDM) pattern. The TDM pattern can comprise a pattern of subframes for communicating with the first and second base station. In another aspect, the UE can release the connection with the first base station at the end of the period of time.

公开(公告)号：US20210068003A1

公开(公告)日：2021-03-04

申请号：US17003371

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Xipeng Zhu ,  Alberto Rico Alvarino ,  Gavin Bernard Hom ,  Miguel Griot ,  Umesh Phuyal ,  Kazuki Takeda ,  Le Liu

IPC: H04W28/02 ,  H04W4/06 ,  H04W28/10 ,  H04W76/12 ,  H04W76/11 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide a base station receiving an indication from a core network to serve multicast/broadcast traffic to one or more UEs. The base station may select a radio bearer mode from a plurality of radio bearer modes for delivery of the multicast/broadcast traffic to at least one UE of the one or more UEs. For example, the base station may select a multicast/broadcast only mode, a mixed multicast/broadcast mode and unicast mode, or a unicast mode for service of the traffic. Dependent on the selected mode and/or quality of service, the base station may select a dedicated radio bearer (DRB) for communication of the traffic in a unicast mode (e.g., to a particular UE) or a multicast radio bearer (MRB) for communication of the traffic in a broadcast/multicast mode.

公开(公告)号：US10924959B2

公开(公告)日：2021-02-16

申请号：US16802433

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Peter Gaal ,  Umesh Phuyal ,  Huilin Xu ,  Masato Kitazoe ,  Tom Chin

IPC: H04L12/28 ,  H04W24/10 ,  H04W76/28 ,  H04B17/336 ,  H04B17/318 ,  H04J1/16

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement. The UE may perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration, wherein the cross-link interference signal strength measurement is performed during an intra-frequency measurement gap. The UE may transmit a report of the cross-link interference signal strength measurement to the base station.