公开(公告)号：US20210314853A1

公开(公告)日：2021-10-07

申请号：US17224044

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Wooseok Nam ,  Sungwoo Park ,  Kiran Venugopal ,  Tao Luo ,  Junyi Li

IPC: H04W48/16 ,  H04W48/08 ,  H04W24/02

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a set of system information to a user equipment (UE), and the UE may identify an operation mode indicating that the system information is applicable for a plurality cells. When the UE detects that it is in a new cell associated with a second base station, the UE may apply the received system information to establish a communication channel in the new cell associated with the second base station. As such, rather than receiving and decoding new system information upon detection of a new cell/base station, the UE may be able to efficiently apply the known system information to establish a connection in the new cell.

公开(公告)号：US20210289476A1

公开(公告)日：2021-09-16

申请号：US17194015

申请日：2021-03-05

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Junyi Li ,  Tianyang Bai ,  Kiran Venugopal ,  Ling Ding ,  Qian Zhang ,  Sony Akkarakaran ,  Tao Luo

IPC: H04W72/02 ,  H04W76/14 ,  H04W72/04 ,  H04B7/06 ,  H04W24/10 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a first user equipment (UE) establishing a sidelink connection with a second UE. The first UE may identify a frame structure for the first UE to communicate with a base station. The frame structure may include one or more downlink slots and one or more uplink slots. The base station may indicate a set of resources for the sidelink connection with the second UE. The set of resources may include at least one downlink slot of the one or more downlink slots. In accordance with the indication, the first UE may communicate with the second UE on the sidelink connection and using at least one beam and the indicated set of resources. The communication with the second UE may utilize at least the resources in the at least one downlink slot.

公开(公告)号：US11121758B2

公开(公告)日：2021-09-14

申请号：US16737697

申请日：2020-01-08

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Jung Ho Ryu ,  Makesh Pravin John Wilson ,  Tao Luo ,  Tianyang Bai

IPC: H04B7/06 ,  H04W76/00 ,  H04W74/08 ,  H04W72/04 ,  H04L5/00 ,  H04W76/11 ,  H04W24/10 ,  H04W72/14 ,  H04W80/02

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for radio link recovery procedure enhancements in wireless communication systems. In some cases, radio link recovery may be enhanced (e.g., sped up and network congestion reduced) by allowing a user equipment (UE) to use an additional secondary cell (SCell) serving the UE to assist in beam recovery when a layer one (L1) event is detected on a primary cell (PCell) or primary secondary cell (PSCell) of the UE.

公开(公告)号：US20210195599A1

公开(公告)日：2021-06-24

申请号：US17090490

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Yan Zhou ,  Tao Luo ,  Kiran Venugopal ,  Junyi Li

IPC: H04W72/04 ,  H04L25/02 ,  H04L5/00 ,  H04B7/024 ,  H04B7/01 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for transmission configuration indication states that indicate quasi-collocation relationships. For example, a user equipment (UE) may transmit an uplink reference signal to a base station and receive, in response, a transmission configuration indication state from the base station that is based on the uplink reference signal. In some examples, the transmission configuration indication state may indicate a quasi-collocation relationship between the uplink reference signal and one or more reference signals associated with a downlink channel. In some implementations, the quasi-collocation relationship may be a spatial relationship between one or more antenna ports associated with the base station used to receive the uplink reference signal and one or more antenna ports used to transmit downlink data. The UE may receive downlink data based on the transmission configuration indication state and the indicated quasi-collocation relationship.

公开(公告)号：US20210126761A1

公开(公告)日：2021-04-29

申请号：US17062845

申请日：2020-10-05

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Yan Zhou ,  Tianyang Bai ,  Jung Ho Ryu ,  Junyi Li ,  Tao Luo

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may indicate a group of component carriers (CCs) or frequency bands that share quasi co-location (QCL) information. For example, a base station may indicate a set of CCs to a UE. The UE may report, to the base station, a group of CCs, bandwidth parts (BWPs), or both that share a QCL property. For example, the report may include a list of CCs, frequency bands, BWPs, frequency ranges (FRs), or some combination thereof sharing the same QCL property, or the report may indicate whether the CCs in a band share the same QCL property. Based on this report, the base station may activate a transmission configuration indicator (TCI) state at the UE, where the UE may activate the TCI state across the group of CCs, BWPs, or both sharing the same QCL property.

公开(公告)号：US10992369B2

公开(公告)日：2021-04-27

申请号：US16796480

申请日：2020-02-20

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Jung Ho Ryu ,  Makesh Pravin John Wilson ,  Tao Luo

IPC: H04B7/08 ,  H04W76/19 ,  H04W24/10 ,  H04W36/06 ,  H04W36/30 ,  H04W36/36 ,  H04W48/12 ,  H04W72/04 ,  H04W72/08

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to cell recovery techniques. One example method generally includes receiving, at a user-equipment (UE), at least one pilot signal via a secondary cell, receive, via a primary cell, a first message triggering reporting of at least one preferred beam for communication via the secondary cell, determining the preferred beam based on the at least one pilot signal, transmitting, via the primary cell, a report indicating the at least one preferred beam, and communicating data via the secondary cell and via the preferred beam.

公开(公告)号：US20210084510A1

公开(公告)日：2021-03-18

申请号：US16803835

申请日：2020-02-27

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Yan Zhou ,  Tao Luo ,  Tianyang Bai ,  Junyi Li ,  Kiran Venugopal

IPC: H04W24/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform path-loss estimation to support uplink transmit power control. The UE may perform path-loss estimations on path-loss reference signals configured by a base station. In some cases, the base station may update (e.g., activate, deactivate, or both) particular path-loss reference signals using a medium access control (MAC) control element (CE). The UE may determine which path-loss reference signal or signals to use for path-loss estimation based on one or more techniques. For example, the UE may filter path-loss measurements over a time duration or may use a single, unfiltered path-loss measurement for path-loss estimation. Additionally or alternatively, the UE may receive deactivated path-loss reference signals (e.g., for a set amount of time or for any amount of time) or may refrain from receiving deactivated path-loss reference signals.

公开(公告)号：US10938459B2

公开(公告)日：2021-03-02

申请号：US16409529

申请日：2019-05-10

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Tianyang Bai ,  Kiran Venugopal ,  Makesh Pravin John Wilson ,  Tao Luo ,  Raju Hormis ,  Junyi Li

IPC: H04L7/08 ,  H04B7/06 ,  H04L5/14

Abstract: Certain aspects of the present disclosure provide a method for changing a beam pair utilized by a user equipment (UE) for communicating over a full-duplex frequency channel. The method includes establishing full-duplex communication with a base station (BS) utilizing a first beam pair comprising a first uplink beam and a first downlink beam utilized by the UE for the full-duplex communication. The method also includes transmitting a first signal to the BS, the first signal comprising a request to change the first beam pair. The method also includes receiving, via the first downlink beam, a second signal responsive to the request, the second signal configured to enable the UE to change from the first beam pair to a second beam pair and maintain full-duplex communication with the BS, wherein the second beam pair includes one or more of a second uplink beam or a second downlink beam.

公开(公告)号：US10917195B2

公开(公告)日：2021-02-09

申请号：US16415641

申请日：2019-05-17

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Gabi Sarkis ,  Tao Luo ,  Kiran Venugopal ,  Tianyang Bai ,  Xiaoxia Zhang ,  Juan Montojo

IPC: H04L1/00 ,  H03M13/29

Abstract: Methods, systems, and devices for wireless communications are described. An encoder may utilize a common mother code for encoding control information to each set of control channel resources of a control channel, control channel associated with multiple transmission configuration indication (TCI) states. For example, the common mother code may include utilizing same parameters when constructing the polar code for each set of control channel resources, where the parameters include a block length, a number of information bits, or both. Additionally, rate matching procedures for each control channel resource may differ (e.g., puncturing, shortening, or repetition). Additionally or alternatively, the mother code and rate matching may be determined based on a sum of all available coded bits in each control channel resource and the number of information bits. A decoder may then attempt soft combination of candidates from the different sets of control channel resources to obtain decoded control information.

公开(公告)号：US20200350977A1

公开(公告)日：2020-11-05

申请号：US16864108

申请日：2020-04-30

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Tianyang Bai ,  Kiran Venugopal ,  Yan Zhou ,  Tao Luo ,  Junyi Li

IPC: H04B7/08 ,  H04W74/00 ,  H04W74/08 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a first base station using a first antenna array of a set of antenna arrays of the UE. The UE may receive, from the base station, an indication that the UE is to use a second antenna array of the set of antenna arrays to transmit a random access signal. The UE may transmit, to the first base station or a second base station, the random access signal using the second antenna array based on the received indication. The UE may transmit the random access signal to the first base station as part of determining an updated timing advance (TA) value for the second antenna array. The UE may transmit the random access signal to the second base station as a part of initial access or handover.