公开(公告)号：US11622239B2

公开(公告)日：2023-04-04

申请号：US17084590

申请日：2020-10-29

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Tao Luo ,  Xiaoxia Zhang ,  Kazuki Takeda ,  Wanshi Chen ,  Mostafa Khoshnevisan ,  Ayan Sengupta

IPC: H04W4/06 ,  H04W72/12 ,  H04W48/10 ,  H04W72/1273

Abstract: A base station may transmit a broadcast/multicast service in a multicast broadcast single frequency network (MBSFN) area multicast communication. A method of wireless communication at a base station in accordance with an aspect of the present disclosure comprises determining a broadcast/multicast service to be provided to a user equipment (UE) in a multicast broadcast single frequency network (MBSFN) area, and transmitting a tracking reference signal (TRS) to the UE, the TRS indicating information associated with receiving the broadcast/multicast service by the UE.

公开(公告)号：US20230037266A1

公开(公告)日：2023-02-02

申请号：US17389160

申请日：2021-07-29

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Wanshi Chen ,  Alberto Rico Alvarino ,  Kazuki Takeda ,  Ayan Sengupta

IPC: H04W4/06 ,  H04L1/18 ,  H04W72/12 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may receive a feedback configuration for providing feedback for downlink communications from a base station. Based on the feedback configuration, the UE may determine whether one or more feedback processes has a multicast-only configuration for multicast data communications, or a multicast-or-unicast configuration for either multicast data communications or unicast data communications. The UE may decode one or more transmissions associated with the one or more feedback processes based on the multicast-only or multicast-or-unicast configuration, and may determine a feedback codebook based on the multicast-only or multicast-or-unicast configuration of the one or more feedback processes. The UE may monitor for retransmissions of one or more multicast data communications based on the feedback process configuration.

公开(公告)号：US11564065B2

公开(公告)日：2023-01-24

申请号：US17248890

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Umesh Phuyal ,  Bharat Shrestha ,  Alberto Rico Alvarino ,  Luis Fernando Brisson Lopes ,  Ayan Sengupta

IPC: H04W4/06 ,  H04W8/22 ,  H04W4/50 ,  H04W76/40 ,  H04W48/12

Abstract: Wireless communication systems and methods related to determining a new multimedia broadcast multicast service (MBMS) configuration for a MBMS that is backward compatible with a legacy MBMS configurations. A base station determines a MBMS configuration. The MBMS configuration includes at least one non-optional field that indicates compatibility with a first user equipment (UE) having a first MBMS capability or compatibility with a second UE having a second MBMS capability. The MBMS configuration also includes a sub-carrier spacing indication for a MBMS corresponding to the first MBMS capability or the second MBMS capability. The MBMS configuration is broadcasted to the first UE and the second UE.

公开(公告)号：US20220369285A1

公开(公告)日：2022-11-17

申请号：US17241696

申请日：2021-04-27

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Alberto Rico Alvarino ,  Le Liu ,  Peter Gaal ,  Wanshi Chen ,  Ayan Sengupta ,  Prasad Reddy Kadiri ,  Tao Luo ,  Mostafa Khoshnevisan ,  Juan Montojo ,  Umesh Phuyal ,  Wooseok Nam

IPC: H04W72/00 ,  H04W72/04 ,  H04W8/24 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may support both unicast and multicast downlink signaling, such as on a single component carrier (CC). A UE may receive a unicast message over a first CC during a transmission time interval (TTI) using a first set of processing resources. The UE may simultaneously receive a multicast message over the first CC during the same TTI using a second set of processing resources. The first and second sets of processing resources may be associated with first and second hybrid automatic repeat request (HARQ) soft buffers, first and second CCs, or first and second transmit/receive points (TRPs).

公开(公告)号：US20220360319A1

公开(公告)日：2022-11-10

申请号：US17308938

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Xiao Feng Wang ,  Liangping Ma ,  Alberto Rico Alvarino ,  Changhwan Park ,  Ayan Sengupta ,  Huilin Xu ,  Jun Ma ,  Umesh Phuyal ,  Peter Gaal

IPC: H04B7/185 ,  H04W56/00 ,  H04W36/06

Abstract: Methods, systems, and devices for wireless communications are described. A serving base station or a serving satellite may transmit a timing configuration to the UE based on a reference unit, such as a location at a beam center for a respective satellite, a threshold distance relative to the beam center for the respective satellite, a reference time, or any combination thereof. In some cases, the UE may monitor for one or more SSBs from the neighboring satellites according to the timing configuration and a respective propagation delay between the UE and each of the neighboring satellites. The UE may measure the SSBs according to the measurement gap and measurement window in the timing configuration. In some examples, the UE may perform a cell handover procedure or a cell reselection procedure based on measuring the SSBs.

公开(公告)号：US20220271860A1

公开(公告)日：2022-08-25

申请号：US17740020

申请日：2022-05-09

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Ayan Sengupta ,  Amer Catovic ,  Le LIU

IPC: H04L1/00 ,  H04L1/16 ,  H04L27/26 ,  H04W4/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive broadcast information from a base station indicating a numerology or a reference signal (RS) pattern to be used in broadcast or multicast transmissions (e.g., a physical multicast channel (PMCH)). The UE may identify a modulation and coding scheme (MCS) associated with the broadcast or multicast transmission and may determine a transport block size (TBS) based on the MCS and at least one of the numerology or the RS pattern. For instance, a UE may determine TBS for numerologies associated with a single symbol that spans multiple subframes differently from that of other numerologies. Additionally or alternatively, a UE may determine TBS for sparse RS patterns differently from that of other RS patterns. The UE may then perform communication with the base station via the broadcast or multicast transmissions in accordance with the TBS.

公开(公告)号：US20220225415A1

公开(公告)日：2022-07-14

申请号：US17149648

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Liangping Ma ,  Umesh Phuyal ,  Xiao Feng Wang ,  Ayan Sengupta ,  Alberto Rico Alvarino

IPC: H04W74/08 ,  H04W72/12 ,  H04W28/02

Abstract: Methods, systems, and devices for wireless communication are described. A communication device, such as a user equipment (UE) may identify information for transmitting to a base station of a non-terrestrial network. The UE may identify that one or more resources allocated for transmitting the information are available based at least in part on identifying the information. The one or more resources include one or more types of uplink resources including physical random access channel (PRACH) resources or physical uplink shared channel (PUSCH) resources for the random access procedure, a PUSCH for a scheduling request (SR), or a physical uplink control channel (PUCCH) for a configured grant, or a combination thereof As a result, the UE may transmit, to the base station, a message over the one or more resources allocated for the information based at least in part on identifying the one or more resources.

公开(公告)号：US20220116972A1

公开(公告)日：2022-04-14

申请号：US17472452

申请日：2021-09-10

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Peter Gaal ,  Kazuki Takeda ,  Jing Sun ,  Wanshi Chen ,  Ayan Sengupta ,  Juan Montojo ,  Mostafa Khoshnevisan ,  Prasad Reddy Kadiri

IPC: H04W72/12 ,  H04L1/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration for a group-common physical downlink shared channel (PDSCH), where the group-common PDSCH is repeated for a number of repetitions. Accordingly, the UE may determine this number of repetitions and then monitor for the group-common PDSCH based on the number of repetitions. In some implementations, the group-common PDSCH may include a semi-static repetition scheme, where the number of repetitions is indicated via a group aggregation factor. Additionally or alternatively, the group-common PDSCH may include a dynamic repetition scheme, where the number of repetitions is indicated via a group repetition number. Additionally, the techniques described herein may enable the configuration for the repeated group-common PDSCH to include gaps between each repetition of the group-common PDSCH and for the UE to transmit acknowledgment feedback for the repetitions of the group-common PDSCH.

公开(公告)号：US20220109959A1

公开(公告)日：2022-04-07

申请号：US17491285

申请日：2021-09-30

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Liangping Ma ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Umesh Phuyal ,  Ayan Sengupta

IPC: H04W4/029 ,  H04B17/364 ,  G01S5/00 ,  G01S5/02

Abstract: Methods, systems, and devices for wireless communications are described. A base station may request a user equipment (UE) to report location information for the UE using a specific format. The UE may report the location information to the base station based on the request. The base station may use the location information reported by the UE to determine the location of the UE.

公开(公告)号：US20220061036A1

公开(公告)日：2022-02-24

申请号：US17517514

申请日：2021-11-02

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Le Liu

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink control information (DCI) block including DCI for a set of transport blocks scheduled for the UE, the DCI including a set of fields. The UE may decode the DCI block to obtain the DCI for the set of transport blocks, where at least two fields of the downlink control information are jointly decoded according to an encoding scheme, and where each possible output of the encoding scheme corresponds to a jointly valid combination of the at least two fields. The UE may receive the set of transport blocks from a base station based on the DCI.