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：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：US10999861B2

公开(公告)日：2021-05-04

申请号：US16507282

申请日：2019-07-10

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Le Liu

IPC: H04W72/12 ,  H04W76/27 ,  H04W8/24 ,  H04L1/00 ,  H04L27/34

Abstract: Methods, systems, and devices for wireless communications are described for identifying a modulation and coding scheme (MCS) independently of a channel quality indicator (CQI) table that is configured at a user equipment (UE). A rate matching parameter may be determined based on one or more of the MCS or CQI table, which may be used for dimensioning a soft buffer that is used to store received transmissions for decoding. The MCS field may be a six-bit field and may indicate an MCS that exceeds a highest MCS associated with the CQI table. The base station may activate a semi-persistent scheduling (SPS) configuration at the UE through an activation command, and the UE may verify that SPS is activated based on information in a number of different fields of control information which may include the MCS field.

公开(公告)号：US10972328B2

公开(公告)日：2021-04-06

申请号：US16224227

申请日：2018-12-18

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Le Liu ,  Wanshi Chen

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04L27/18 ,  H04B7/0456

Abstract: Methods, apparatuses, and computer program products for wireless communication are provided. A user equipment (UE) may be configured to determine a phase rotation for a symbol based at least in part on a tone index. The UE may be configured to apply the phase rotation to the received symbol, and transmit the uplink symbol. Numerous other aspects are provided.

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：US20210044380A1

公开(公告)日：2021-02-11

申请号：US16937504

申请日：2020-07-23

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Renqiu Wang ,  Krishna Kiran Mukkavilli ,  Huilin Xu ,  Seyedkianoush Hosseini ,  Tingfang Ji ,  Peter Pui Lok Ang ,  Alberto Rico Alvarino ,  Le Liu ,  Jing Lei ,  Peter Gaal

IPC: H04L1/00 ,  H04W72/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive signaling that configures a downlink bandwidth for a broadcast channel transmission (e.g., a physical downlink control channel transmission). The UE may determine a bandwidth of the capability is less than the downlink bandwidth, and monitor search space occasions in a period to receive samples of the broadcast channel. The period and the search space occasions may be associated with a control resource set and a search space set. The UE may receive the samples in non-overlapping subbands of the bandwidth according to the bandwidth capability, and detect the broadcast channel based on the samples. The UE may additionally monitor repeated transmission occasions in the period based on detecting the broadcast channel to detect a second broadcast channel (e.g., a physical downlink shared channel).

公开(公告)号：US10834699B2

公开(公告)日：2020-11-10

申请号：US16182376

申请日：2018-11-06

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Mungal Singh Dhanda ,  Umesh Phuyal

IPC: H04W68/02 ,  H04W52/02 ,  H04W48/16 ,  H04W76/27 ,  H04W24/08 ,  H04W72/04 ,  H04W24/10 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment (UE), may receive a configuration of a page monitoring periodicity, and a configuration of a wake-up signal from a network node, such as a base station. The UE may perform discontinuous monitoring for a plurality of wake-up signals based at least in part on a wake-up signal periodicity, and receive the wake-up signal on the wake-up signal periodicity. The UE may then monitor for paging messages to receive paging information, or updates to system information, during a page monitoring period according to the page monitoring periodicity, the wake-up signal periodicity, the received wake-up signal, or a combination thereof.

公开(公告)号：US20200350949A1

公开(公告)日：2020-11-05

申请号：US16865210

申请日：2020-05-01

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Ayan Sengupta ,  Le Liu ,  Umesh Phuyal

IPC: H04B1/7143 ,  H04W72/04 ,  H04W8/24 ,  H04W72/14 ,  H04L5/00 ,  H04W24/08 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described that support techniques for wireless communications using preconfigured uplink resources. Generally, the described techniques provide for enhancement of communication features including frequency hopping, an uplink control channel, coverage enhancement, timing advance, uplink power control, reconfiguration, a downlink control channel, a downlink data channel, retransmissions, or subcarrier spacing for a UE in idle mode. The UE may receive an uplink resource configuration for uplink communications in idle mode, the uplink resource configuration comprising an indicator associated with allocated resources for the uplink communications in idle mode and a set of parameters. The UE may transmit, while in idle mode, a first uplink transmission associated with a transport block on the allocated resources and according to one or more of the parameters, and monitor for a response to the first uplink transmission.

公开(公告)号：US20200022163A1

公开(公告)日：2020-01-16

申请号：US16507286

申请日：2019-07-10

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Le Liu

IPC: H04W72/12 ,  H04L1/00 ,  H04L27/34

Abstract: Methods, systems, and devices for wireless communications are described for identifying a modulation and coding scheme (MCS) independently of a channel quality indicator (CQI) table that is configured at a user equipment (UE). A rate matching parameter may be determined based on one or more of the MCS or CQI table, which may be used for dimensioning a soft buffer that is used to store received transmissions for decoding. The MCS field may be a six-bit field and may indicate an MCS that exceeds a highest MCS associated with the CQI table. The base station may activate a semi-persistent scheduling (SPS) configuration at the UE through an activation command, and the UE may verify that SPS is activated based on information in a number of different fields of control information which may include the MCS field.