公开(公告)号：US10959273B2

公开(公告)日：2021-03-23

申请号：US16777724

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Linhai He ,  Jay Kumar Sundararajan ,  Hung Dinh Ly ,  Wanshi Chen ,  Peter Gaal

IPC: H04W76/27 ,  H04W74/08 ,  H04B7/01 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), a signaling communication that indicates one or more preamble sequence configurations. Each of the preamble sequence configurations may specify a respective plurality of preamble sequence rules for a different random access channel (RACH) procedure type. The UE may generate, based at least in part on a plurality of preamble sequence rules for a preamble sequence configuration of the one or more preamble sequence configurations, a preamble sequence for a RACH communication in a RACH procedure. Numerous other aspects are provided.

公开(公告)号：US10798774B2

公开(公告)日：2020-10-06

申请号：US16128136

申请日：2018-09-11

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Linhai He ,  Joseph Binamira Soriaga

IPC: H04W76/28 ,  H04W52/02 ,  H04L5/00 ,  H04W28/20 ,  H04W72/04 ,  H04W72/12 ,  H04L27/26 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may monitor, in a first bandwidth part, of a plurality of bandwidth parts, associated with a first monitoring periodicity and in a downlink control channel, for a downlink control information (DCI) message. The user equipment may selectively transition, based at least in part on the DCI message, from the first bandwidth part to a second bandwidth part, of the plurality of bandwidth parts, associated with a second monitoring periodicity that is less than the first monitoring periodicity. Numerous other aspects are provided.

公开(公告)号：US10791579B2

公开(公告)日：2020-09-29

申请号：US16240162

申请日：2019-01-04

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Linhai He

IPC: H04W4/00 ,  H04W74/08 ,  H04B7/06 ,  H04B7/0408 ,  H04L1/18 ,  H04L27/26 ,  H04W36/30 ,  H04L5/00

Abstract: Wireless communications systems and methods related to performing a random access procedure are provided. A first wireless communication device receives a random access response monitoring configuration for a plurality of random access opportunities associated with a random access attempt. The first wireless communication device transmits, to a second wireless communication device, one or more random access preambles associated with the plurality of random access opportunities. The first wireless communication device monitors for a random access response for each of the one or more random access preambles based on the random access response monitoring configuration.

公开(公告)号：US20200260485A1

公开(公告)日：2020-08-13

申请号：US16778956

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park ,  Naga Bhushan ,  Ying Wang ,  Wanshi Chen ,  Joseph Binamira Soriaga

IPC: H04W74/08 ,  H04W72/14 ,  H04W24/08 ,  H04L5/00 ,  H04L1/18 ,  H04W80/02 ,  H04L5/10 ,  H04W76/27

Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

公开(公告)号：US20200260478A1

公开(公告)日：2020-08-13

申请号：US16788967

申请日：2020-02-12

Applicant: Qualcomm Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Linhai He ,  Gabi Sarkis ,  Seyedkianoush Hosseini ,  Joseph Binamira Soriaga ,  Amir Aminzadeh Gohari

IPC: H04W72/14 ,  H04W72/12 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently determining whether to transmit an uplink transmission scheduled by a semi-static grant or a dynamic uplink transmission scheduled by a dynamic grant when the dynamic uplink transmission conflicts with the uplink transmission scheduled by the semi-static grant. In particular, if a user equipment (UE) determines that a dynamic grant is received within a threshold time before an uplink transmission scheduled by a semi-static grant, the UE may transmit the uplink transmission scheduled by the semi-static grant and refrain from transmitting the dynamic transmission. Alternatively, if the UE determines that a dynamic grant is received in advance of a threshold time before an uplink transmission scheduled by a semi-static grant, the UE may transmit the dynamic transmission and refrain from transmitting the uplink transmission scheduled by the semi-static grant.

公开(公告)号：US20200252896A1

公开(公告)日：2020-08-06

申请号：US16736394

申请日：2020-01-07

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Hung Dinh Ly ,  Linhai He ,  Wanshi Chen

IPC: H04W56/00 ,  H04W74/08

Abstract: In some aspects, a user equipment (UE) determines a transmission gap adjustment (TGA) for a first message (msgA) of a 2 step random access channel (RACH) procedure based on measurement of a reference signal transmitted by a base station as well as the radio resource configuration (RRC) configurations for msgA. In other aspects, a base station transmits a system information block (SIB) or RRC signaling that indicates at least one possible configuration of the TGA, and UEs determine the TGA depending on RRC state. Connected mode UEs having a timing alignment (TA) timer running may determine the TGA based on a previous TA. UEs in other RRC modes determine the TGA based on the possible configuration transmitted in the SIB or RRC signaling. Advantageously, 2 step RACH UEs are able to communicate with the base station without the closed loop TA information provided by a 4 step RACH.

公开(公告)号：US20200252880A1

公开(公告)日：2020-08-06

申请号：US16735318

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Jay Kumar Sundararajan ,  Linhai He ,  Seyong Park ,  Yi Huang ,  Hung Dinh Ly ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Naga Bhushan

IPC: H04W52/14 ,  H04W74/08 ,  H04W52/24 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04W76/27 ,  H04W52/36 ,  H04W24/08 ,  H04W52/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive system information from a base station indicating at least one configuration rule for power control parameter setting for random access. The UE may measure one or more reference signals and may estimate a path loss of wireless communications between the base station and the UE based on the measured reference signals. The UE may select one or more parameters from one or more sets of parameters indicated in the configuration rule. The UE may select a first transmit power for a preamble of a random access message and a second transmit power for a payload of the random access message, based on the estimated path loss and the configuration rule for power control parameters and power ramping procedures. The UE may transmit the random access message according to the selected first and second transmit powers.

公开(公告)号：US20200015136A1

公开(公告)日：2020-01-09

申请号：US16490699

申请日：2017-04-05

Applicant: Aleksandar DAMNJANOVIC ,  Keiichi KUBOTA ,  Linhai HE ,  Gavin Bernard HORN ,  Peng CHENG ,  Qualcomm Incorporated

Inventor： Aleksandar Damnjanovic ,  Keiichi Kubota ,  Linhai He ,  Gavin Bernard Horn ,  Peng Cheng

IPC: H04W36/10 ,  H04W36/00 ,  H04W36/30 ,  H04W36/36

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may autonomously initiate a handover procedure and select a target base station for the handover procedure. The UE may measure a signal from the source base station or the target base station, or both, and the UE may determine whether specific criteria at both base stations are within a pre-configured range. If the criteria at both base stations are within the pre-configured range, the UE may identify the target base station as a potential candidate for a handover. Accordingly, when the UE determines that radio conditions with the source base station are deteriorating (or fall below a threshold), the UE may initiate a handover to the target base station autonomously and without specific direction from the source base station.

公开(公告)号：US20140226550A1

公开(公告)日：2014-08-14

申请号：US14258762

申请日：2014-04-22

Applicant: Qualcomm Incorporated

Inventor： Linhai He ,  Akbar Rashid Ahmed Attar ,  Christopher Gerard Lott ,  Donna Ghosh

IPC: H04W52/02

CPC classification number: H04W52/0241 ,  H04W52/0232 ,  H04W52/0258 ,  H04W88/08 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142

Abstract: A wireless communications power saving method and apparatus is provided. The method includes establishing a circular buffer configured to maintain a number of most recently encountered frame delay times and waiting a frame delay time after receiving a further frame before the station enters a power save state. Frame delay time is a period equal to a largest most recently encountered frame delay period in the circular buffer. The method further determines, at a station, a dormancy time based on a number of data frames received since the station transitioned from an inactive mode to an active mode, a packet transmission rate, and a data frame time interval representing time between data frames received at the station, and causes the station to switch to a further inactive mode if a next packet is not received within the dormancy time after receipt of a previous packet.

Abstract translation: 提供一种无线通信省电方法和装置。 该方法包括建立循环缓冲器，该循环缓冲器被配置为保持最近遇到的帧延迟时间的数量，并且在站进入省电状态之前在接收到另一帧之后等待帧延迟时间。 帧延迟时间是等于循环缓冲器中最大遇到的最大帧延迟周期的周期。 该方法还在一个站点基于从站从非活动模式转换到活动模式，分组传输速率和表示接收到的数据帧之间的时间的数据帧时间间隔，接收到的数据帧数，在一个站处确定休眠时间 并且如果在接收到先前分组之后的休眠时间内没有接收到下一分组，则使得站切换到另一非活动模式。

公开(公告)号：US20250133561A1

公开(公告)日：2025-04-24

申请号：US18688287

申请日：2021-10-09

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Lei ,  Ruiming Zheng ,  Linhai He

IPC: H04W72/1268 ,  H04W24/08 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, from a base station, control signaling identifying a first set of resources for data transmissions and a second set of resources for uplink control information (UCI) transmission by the UE when the UE is in an inactive state or an idle state. The UE may generate, when the UE is in one of the inactive state or the idle state, a UCI message based on the second set of resources. The UE may then transmit, to the base station when the UE in the one of the inactive state or the idle state, a data message on at least a portion of the first set of resources and the UCI message on the second set of resources.