公开(公告)号：US20190037604A1

公开(公告)日：2019-01-31

申请号：US16046781

申请日：2018-07-26

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Xiao Feng Wang ,  Kaushik Chakraborty ,  Wooseok Nam ,  Shengbo Chen ,  Juan Montojo

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

Abstract: Methods, systems, and devices for wireless communication are described. Wireless communications systems may support uplink random access channel (RACH) transmissions on multiple beams and over multiple component carriers (CCs). A wireless device may transmit a random access preamble to a base station in a first RACH transmission, which may indicate a set of CCs over which the base station may respond with a random access response (RAR) in a second RACH transmission. The second RACH transmission may then include an indication for which CCs the wireless device may use for a subsequent RACH transmission (e.g., a RACH message 3). The wireless device may also indicate a beam index and/or time-frequency resources associated with beams and/or CCs used for such cell acquisition transmissions. In other examples, the base station may indicate resources (e.g., via a handover command or RACH command) for wireless device scheduling request and/or beam-failure recovery request transmission.

公开(公告)号：US20180324653A1

公开(公告)日：2018-11-08

申请号：US15970554

申请日：2018-05-03

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Makesh Pravin John Wilson ,  Sony Akkarakaran ,  Juan Montojo ,  Shengbo Chen ,  Wooseok Nam ,  Xiao Feng Wang ,  Kaushik Chakraborty

IPC: H04W36/00 ,  H04W74/08 ,  H04W74/00

CPC classification number: H04W36/0044 ,  H04W36/08 ,  H04W74/006 ,  H04W74/008 ,  H04W74/04 ,  H04W74/0833

Abstract: User equipment (UE) selection of contention-free random access (CFRA) and contention-based random access (CBRA) for handover processing is discussed. The aspects include receiving a random access configuration at the UE including configuration for CFRA and CBRA. The UE will determine a first random access resource, wherein the first random access resource maps to one or more beams from a target base station. The UE may initiate a random access request using the CFRA when the first random access resource is a contention-free resource, and initiate the random access request using the CBRA when the first random access resource is a contention-based resource.

公开(公告)号：US10027456B2

公开(公告)日：2018-07-17

申请号：US15705126

申请日：2017-09-14

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Ajay Gupta ,  Makesh Pravin John Wilson ,  Kaushik Chakraborty ,  Sony Akkarakaran ,  Vinod Viswanatha Menon

IPC: H04L5/00 ,  H04B7/06 ,  H04W88/02 ,  H04W88/08

Abstract: Apparatuses and methods of beam switching are presented. A beam switch message (BSM) is transmitted to a second device via a first beam set. The BSM includes a command to switch from communication via the first beam set to communication via a second beam set at a switch time. It is determined whether a response message is received from the second device via the first beam set, the response message indicating that the second device received the BSM. A communication is sent to the second device via the second beam set after the switch time when the response message is unreceived.

公开(公告)号：US20180123648A1

公开(公告)日：2018-05-03

申请号：US15707901

申请日：2017-09-18

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson

IPC: H04B7/04 ,  H04B17/29 ,  H04B17/15

CPC classification number: H04B7/043 ,  H04B7/06 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/0085 ,  H04B17/15 ,  H04B17/29 ,  H04B17/327

Abstract: A wireless communications system may support beamforming to transmit and receive signals. A device operating within the wireless communications system may transmit a request to measure a beamformed reference signal. The device may also transmit a beamforming configuration indicating one or more beamforming options for measuring the beamformed reference signal. The beamforming options may include measuring the beamformed reference signal using a directional configuration and an omni-directional configuration. The device receiving the beamforming configuration may form a receive beam in accordance with the beamforming configuration to measure the beamformed reference signal. A device operating within the wireless communications system may determine to use a particular beamforming option for measuring a beamformed reference signal without first receiving a beamforming configuration, and may make the determination based on signal quality at the device or capabilities of the device.

公开(公告)号：US09474051B2

公开(公告)日：2016-10-18

申请号：US13943348

申请日：2013-07-16

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Siddhartha Mallik ,  Yi Huang ,  Tao Luo

IPC: H04W4/00 ,  H04W72/04 ,  H04W16/10 ,  H04W72/12 ,  H04W52/28 ,  H04L1/18

CPC classification number: H04W72/0406 ,  H04L1/1812 ,  H04W16/10 ,  H04W52/281 ,  H04W72/1226 ,  H04W72/1257

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may perform one or more process that enable smart processing of resource elements from interfering base stations in order to improve cell decoding. The method includes prioritizing resource elements in order to reduce complexity of processing of the interfering resource elements. Some resource elements may be excluded from processing if priority is set to a null value or to a sufficiently low value. Resource elements in a subframe received from an interfering transmitter are grouped into one or more target regions and paired with serving and interfering cells. Each pairing is prioritized and processed in an order based on the priorities assigned to the pairings.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置可以执行一个或多个进程，其能够对来自干扰基站的资源元素进行智能处理，以便改进小区解码。 该方法包括对资源元素进行优先级排序以便降低对干扰资源元素的处理的复杂性。 如果优先级设置为空值或足够低的值，则某些资源元素可能被排除在处理之外。 从干扰发射机接收的子帧中的资源元素被分组成一个或多个目标区域，并与服务小区和干扰小区配对。 根据分配给配对的优先级，每个配对的优先顺序和顺序进行处理。