公开(公告)号：US11671902B2

公开(公告)日：2023-06-06

申请号：US17357832

申请日：2021-06-24

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Le Liu ,  Alberto Rico Alvarino ,  Umesh Phuyal ,  Bharat Shrestha

IPC: H04W48/10 ,  H04W76/27 ,  H04W4/06 ,  H04W48/20

CPC classification number: H04W48/10 ,  H04W4/06 ,  H04W48/20 ,  H04W76/27

Abstract: This disclosure relates to techniques for providing access control for multicast or broadcast (MC/BC) services. A base station broadcasts one or more cell barring parameters to a group of user equipment (UEs) that indicate whether the UEs of the group of UEs is permitted to select the cell of the base station for receiving the MC/BC services. The base station also broadcasts one or more access control parameters to a set of one or more UEs, of the group of UEs, that are indicated to be permitted to select the cell for receiving the MC/BC services based on the one or more cell barring parameters. The one or more access control parameters indicate whether the set of one or more UEs is permitted to establish or resume the RRC connected state with the base station for receiving the MC/BC services.

公开(公告)号：US11665745B2

公开(公告)日：2023-05-30

申请号：US17364230

申请日：2021-06-30

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Peter Gaal ,  Liangping Ma ,  Le Liu ,  Jun Ma ,  Bharat Shrestha ,  Umesh Phuyal

IPC: H04W74/08 ,  H04W74/00 ,  H04B7/185 ,  H04W72/044

CPC classification number: H04W74/0833 ,  H04B7/18576 ,  H04W72/044 ,  H04W74/006

Abstract: Methods, systems, and devices for wireless communications are described in which random access preambles may be designed to provide for relatively low inter-carrier interference (ICI) of adjacent available frequency resources in a non-terrestrial network (NTN). Random access preambles for NTN random access requests may be selected from a first set of random access preambles that are different from a second set of random access preambles for terrestrial random access requests. The first set of random access preambles may be a subset of the second set of random access preambles. The first set of random access preambles may be provided for contention-based random access (CBRA) and contention-free random access (CFRA) preambles may be configured by a base station from random access preambles that correspond to or are different from the second set of random access preambles.

公开(公告)号：US11637673B2

公开(公告)日：2023-04-25

申请号：US16660728

申请日：2019-10-22

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Wanshi Chen ,  Hao Xu

IPC: H04L5/00 ,  H04W4/70 ,  H04W72/04 ,  H04L5/14 ,  H04W88/02 ,  H04W72/0446

Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to sounding reference signal (SRS) transmissions in enhanced machine type communication (MTC). An example method generally includes determining one or more narrowband regions partitioned from wider system bandwidth for communicating with a base station, determining resources, within the one or more narrowband regions of a first subframe, for transmission of sounding reference signals (SRS) by the UE, deciding whether or not to transmit SRS on the determined resources of the first subframe, and transmitting or not transmitting the SRS on the determined resources of the first subframe based on the decision.

公开(公告)号：US11617159B2

公开(公告)日：2023-03-28

申请号：US17138278

申请日：2020-12-30

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Kazuki Takeda ,  Alberto Rico Alvarino ,  Huilin Xu ,  Peter Gaal ,  Ayan Sengupta ,  Prasad Reddy Kadiri ,  Juan Montojo ,  Sitaramanjaneyulu Kanamarlapudi ,  Wanshi Chen

IPC: H04W72/00 ,  H04W76/28 ,  H04L1/1607 ,  H04W24/08 ,  H04W52/02 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/121

Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure a user equipment (UE) with a frequency resource for a multicast/broadcast service (MBS) for the UE to monitor for one or more group-common downlink control channels. The base station may transmit an indication, such as an explicit indication, of a monitoring condition for the group-common downlink control channels within the frequency resource. The UE may apply the monitoring condition by enabling or disabling the group-common downlink control channel monitoring within the frequency resource. The UE may monitor one or more downlink control channels for scheduling information from the base station according to the monitoring condition.

公开(公告)号：US20230091636A1

公开(公告)日：2023-03-23

申请号：US18052846

申请日：2022-11-04

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Le Liu ,  Kazuki Takeda ,  Alberto Rico Alvarino ,  Wanshi Chen ,  Xipeng Zhu ,  Peter Gaal

IPC: H04L1/16 ,  H04L5/00 ,  H04W72/04 ,  H04W72/02 ,  H04W8/24

Abstract: The disclosure relates to methods, devices, and systems for wireless communications. In some wireless communications systems, a base station may transmit a multicast message to a group of user equipment (UEs), and the UEs may provide feedback for the multicast message. In some implementations, the base station may configure the UEs to transmit feedback for multicast messages. In some example, the UEs may transmit group-negative acknowledgment (NACK) feedback information for multicast messages that are not successfully received at the UEs. In some other examples, each UE may be configured with UE-specific uplink control channel resources for transmitting hybrid automatic repeat request (HARQ) feedback for a multicast message. In some implementations, a UE may support feedback for both unicast and multicast messages. The semi-static codebook for unicast, multicast, or both may account for whether the UE is capable of concurrently receiving unicast and multicast messages in a slot.

公开(公告)号：US11601890B2

公开(公告)日：2023-03-07

申请号：US17369722

申请日：2021-07-07

Applicant: QUALCOMM Incorporated

Inventor： Chiranjib Saha ,  Alberto Rico Alvarino ,  Le Liu ,  Kazuki Takeda

IPC: H04W52/10 ,  H04W52/14 ,  H04W72/1268 ,  H04L5/00 ,  H04W72/04

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for managing uplink power control. For example, the techniques may be used for uplink power control for physical uplink shared channel (PUSCH) transmissions from unmanned aerial vehicles (UAVs).

公开(公告)号：US20230039536A1

公开(公告)日：2023-02-09

申请号：US17393231

申请日：2021-08-03

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Mostafa Khoshnevisan ,  Alberto Rico Alvarino ,  Kazuki Takeda ,  Prasad Reddy Kadiri ,  Umesh Phuyal

IPC: H04W72/04 ,  H04W72/00

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving, from a base station and at the UE of a group of UEs, control signaling indicating a link between a first search space set and a second search space set used for a multicast broadcast service, where a first downlink control channel for the group of UEs is transmitted in the first search space set and a second downlink control channel is transmitted in the second search space set, monitoring the first search space set for a first instance of control information in the first downlink control channel and the second search space set for a second instance of the control information in the second downlink control channel, and decoding the first instance or the second instance of the control information, or both, based on the monitoring.

公开(公告)号：US20230033440A1

公开(公告)日：2023-02-02

申请号：US17388434

申请日：2021-07-29

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Alberto Rico Alvarino ,  Le Liu ,  Umesh Phuyal ,  Linhai He ,  Huilin Xu

IPC: H04W52/02 ,  H04W72/12 ,  H04L12/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling from a base station that indicates a multicast or broadcast wake up signal (WUS) format. The UE may receive a multicast or broadcast WUS from the base station during a WUS monitoring occasion of a connected mode discontinuous reception (C-DRX) cycle in accordance with the control signaling. The multicast or broadcast WUS may indicate upcoming transmissions for a set of multicast or broadcast services (MBSs). If, for example, the UE is subscribed to a first MBS from the set of MBSs and the multicast or broadcast WUS indicates an upcoming transmission for the first MBS, the UE may monitor for the upcoming transmission during an active duration of the C-DRX cycle. Otherwise, the UE may enter a sleep mode to conserve power.

公开(公告)号：US11558817B2

公开(公告)日：2023-01-17

申请号：US17039123

申请日：2020-09-30

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04L5/00

Abstract: The present disclosure relates to transmitting and receiving a group wake-up signal (WUS) in conjunction with an ungrouped WUS. A base station may group one or more UEs in a UE group, while other UEs may not be assigned to a UE group. The configuration of WUS resources and WUS sequences for grouped UEs and other UEs is a challenge. The base station may transmit, to one or more UEs in the UE group, a resource allocation of a group WUS resource within a set of WUS resources associated with a paging occasion that is assigned to the one or more UEs in the UE group. A UE, after receiving the resource allocation, may determine a location of the group WUS resource within the set of WUS resources. The UE may monitor for a group WUS at the determined location in the resource allocation of the group WUS resource.

公开(公告)号：US20220417958A1

公开(公告)日：2022-12-29

申请号：US17359489

申请日：2021-06-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/04 ,  H04W76/27 ,  H04W8/24

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a radio resource control (RRC) reconfiguration message from a base station including a configuration for communicating with the base station, and the base station may transmit an RRC reconfiguration complete message to the base station (e.g., in response to the RRC reconfiguration message). The UE may then apply the configuration in the RRC reconfiguration message for communicating with the base station after transmitting the RRC reconfiguration complete message. That is, the UE may delay application of the configuration in the RRC reconfiguration message until after the UE transmits the RRC reconfiguration complete message. Using these techniques, ambiguity between the base station and the UE on when the configuration is applied by the UE may be minimized, resulting in improved throughput and reduced latency in a wireless communications system.