公开(公告)号：US20220417931A1

公开(公告)日：2022-12-29

申请号：US17903695

申请日：2022-09-06

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Alberto RICO ALVARINO ,  Le LIU ,  Wanshi CHEN ,  Xiao Feng WANG ,  Hao XU

IPC: H04W72/04 ,  H04L5/00 ,  H04W74/08

Abstract: A method, base station (BS), user equipment (UE), apparatus, and computer program product for wireless communication are provided. A BS and a UE may communicate using a narrowband Internet of Things (NB-IoT) communication system. However, a frequency, time, and/or power associated with transmission of a SIB1-NB on a non-anchor carrier may not be configured for NB-IoT. In some aspects, the BS may determine parameters, such as a time domain location parameter, a frequency domain location parameter, a quantity of repetitions, a power boosting parameter, and/or the like for a transmission in NB-IoT. In some aspects, a UE may determine to transmit a connection request message on a different carrier than a random access channel message.

公开(公告)号：US20220400513A1

公开(公告)日：2022-12-15

申请号：US17776640

申请日：2019-11-14

Applicant: Qualcomm Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Hao XU ,  Huilin XU ,  Jing LEI ,  Peter Pui Lok ANG ,  Wanshi CHEN ,  Le LIU ,  Yiqing CAO ,  Peter GAAL

IPC: H04W74/04 ,  H04W74/00 ,  H04W74/08

Abstract: A low complexity user equipment (UE) may be in communication with another UE (e.g., with a premium UE or more capable UE) via a device-to-device communication link (e.g., via sidelink), and the low complexity UE may leverage the device-to-device link to improve (e.g., simplify, expedite, etc.) random access procedures performed by the low complexity UE. For example, a low complexity UE may request contention free random access (CFRA) resources via the device-to-device link with another UE. Another device (e.g., another UE in device-to-device communication with the low complexity UE) may receive the request from the low complexity UE and forward the request to the network (e.g., to a base station). The network may then configure CFRA resources for the low complexity UE. Upon receiving the CFRA configuration, the low complexity UE may perform a random access procedure (e.g., a CFRA procedure) with the network (e.g., with the base station) accordingly.

公开(公告)号：US20220352962A1

公开(公告)日：2022-11-03

申请号：US17764457

申请日：2019-10-10

Applicant: Qualcomm Incorporated

Inventor： Min HUANG ,  Chao WEI ,  Hao XU

IPC: H04B7/06 ,  H04L5/00 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a base station may send, and a user equipment (UE) may receive, a transmission beam adjustment message indicating a change from a first time interval to a second time interval in which a transmission beam is utilized to transmit a synchronization signal and physical broadcasting channel block (SSB). The base station may send the transmission beam adjustment message to all connected UEs, individual UEs affected by the adjustment, or to one or more UE groups. The UE may receive the transmission beam adjustment message and determine a new time interval of the transmission beam pattern that the base station is using the transmission beam to transmit the SSB. The UE may monitor the new time interval for the SSB using a receive beam that corresponds to the transmission beam.

公开(公告)号：US20220337337A1

公开(公告)日：2022-10-20

申请号：US17753115

申请日：2020-08-17

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Ruiming ZHENG ,  Tao LUO ,  Hao XU

IPC: H04L1/00

Abstract: An apparatus, such as a base station, may determine channel conditions associated with at least two carriers on which communication with another apparatus is configured. The apparatus may encode a dataset into a set of protocol data units (PDUs) using fountain coding based on the channel conditions. The apparatus may send a first subset of the set of PDUs to the other apparatus on a first carrier of the at least two carriers. The apparatus may send a second subset of the set of PDUs to the other apparatus on a second carrier of the at least two carriers. Another apparatus, such as a user equipment (UE), may receive the set of PDUs from the apparatus over the at least two carriers, and may decode the set of PDUs to obtain a dataset using fountain coding.

公开(公告)号：US20220329383A1

公开(公告)日：2022-10-13

申请号：US17844430

申请日：2022-06-20

Applicant: QUALCOMM Incorporated

Inventor： Hung LY ,  Tao LUO ,  Hao XU

IPC: H04L5/00 ,  H04L5/14

Abstract: Techniques for signaling dynamic region for PRACH transmission are described. In an aspect, the disclosure describes a method for receiving, at a user equipment (UE), an indication of a number of symbols that the UE is to use when transmitting via a physical random access channel (PRACH), and transmitting, by the UE, via the PRACH over one or more slots based on the number of symbols. In another aspect, the disclosure describes a method for generating, at a network device, an indication of a number of symbols that a UE is to use when transmitting PRACH, transmitting, by the network device, the indication to the UE. A UE and network device configuration as well as apparatuses and computer-readable medium related to these methods are also described.

公开(公告)号：US20220247532A1

公开(公告)日：2022-08-04

申请号：US17597829

申请日：2020-08-06

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Yu ZHANG ,  Liangming WU ,  Chenxi HAO ,  Min HUANG ,  Hao XU ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may identify a sounding reference signal (SRS) resource associated with an uplink precoding resource block group of a physical uplink shared channel (PUSCH) resource. The user equipment may precode a portion of a PUSCH communication, to be transmitted in the uplink precoding resource block group, based at least in part on the identified SRS resource. The user equipment may transmit the PUSCH communication after precoding the PUSCH communication. Numerous other aspects are provided.

公开(公告)号：US20220225138A1

公开(公告)日：2022-07-14

申请号：US17607291

申请日：2020-05-28

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Yu ZHANG ,  Liangming WU ,  Chenxi HAO ,  Chao WEI ,  Min HUANG ,  Yuwei REN ,  Hao XU ,  Wanshi CHEN

IPC: H04W24/08 ,  H04L5/00 ,  H04B7/08

Abstract: Apparatus, methods, processing systems, and computer readable mediums for beam management in multi-TRP scenarios are disclosed. An exemplary method generally includes receiving a channel state information reference signal (CSI-RS) resource configuration from at least one base station (BS) for one or more transmission hypotheses, wherein the CSI-RS resource configuration includes CSI-RS resources corresponding to at least a first downlink (DL) demodulation reference signal (DMRS)-port-group and a second DL DMRS-port-group, performing one or more CSI-RS measurements for the one or more transmission hypotheses based, at least in part on the CSI-RS resource configuration, and determining, for each of the one or more transmission hypotheses, a preferred reception beam for communicating with the at least one BS based, at least in part, on the one or more CSI-RS measurements.

公开(公告)号：US20220150035A1

公开(公告)日：2022-05-12

申请号：US17435635

申请日：2019-03-11

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Yu ZHANG ,  Liangming WU ,  Hao XU ,  Min HUANG ,  Chenxi HAO ,  Chao WEI ,  Wanshi CHEN

IPC: H04L5/00

Abstract: In conventional wireless communication systems, only a single transmit precoding matrix indicator (TPMI) with a single associated sounding reference signal (SRS) resource indicator (SRI) is configured/activated in downlink control signal (DCI) for retransmission of data. To enable better performance in retransmission, the UE may dynamically turn on/off/switch panels for retransmissions.

公开(公告)号：US20220141779A1

公开(公告)日：2022-05-05

申请号：US17433759

申请日：2020-03-12

Applicant: QUALCOMM Incorporated

Inventor： Yuwei REN ,  Chao WEI ,  Min HUANG ,  Yu ZHANG ,  Hao XU

IPC: H04W52/52 ,  H04B1/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine an automatic gain control parameter, for a group of downlink symbols associated with a base station, based at least in part on an automatic gain control resource included in the group of downlink symbols. The user equipment may perform, based at least in part on the automatic gain control parameter, automatic gain control for one or more data symbols included in the group of downlink symbols. Numerous other aspects are provided.

公开(公告)号：US20220131590A1

公开(公告)日：2022-04-28

申请号：US17423410

申请日：2020-01-21

Applicant: QUALCOMM Incorporated

Inventor： Ruifeng MA ,  Yuwei REN ,  Bo CHEN ,  Renqiu WANG ,  Pavan Kumar VITTHALADEVUNI ,  Tingfang JI ,  Hao XU

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for providing channel state feedback. One example method generally includes receiving at least one first pilot signal, and generating a first channel state information (CSI) report based on the at least one first pilot signal. The first CSI report may include a differential phase feedback for each subband (SB) of one or more SBs associated with the at least one first pilot signal. The method may also include transmitting the first CSI report having the differential phase feedback.