公开(公告)号：US20140029455A1

公开(公告)日：2014-01-30

申请号：US13871242

申请日：2013-04-26

Applicant: QUALCOMM INCORPORATED

Inventor： Pavan Kumar VITTHALADEVUNI ,  Arnaud MEYLAN ,  Sharad Deepak SAMBHWANI ,  Brandon Allen BURDGE ,  Sridhar RAMANUJAM ,  Siddharth MOHAN

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04W48/18

Abstract: A method and apparatus for determining available downlink bandwidth are described. The described aspects may include estimating an available link capacity of a cell for a user equipment. The described aspects may include estimating an available fraction of cell resources for the user equipment. The described aspects may include estimating available bandwidth of the cell for the user equipment as a function of the estimated available link capacity and the estimated available fraction of cell resources. Available bandwidth may be estimated for a cell in a Universal Mobile Telecommunications System (UMTS) system when the user equipment is in an idle mode and/or a connected mode. Available bandwidth may be estimated for a cell in a Long Term Evolution (LTE) system when the user equipment is in an idle mode and/or a connected mode.

Abstract translation: 描述了一种用于确定可用下行链路带宽的方法和装置。 所描述的方面可以包括估计用于用户设备的小区的可用链路容量。 所描述的方面可以包括估计用户设备的小区资源的可用分数。 所描述的方面可以包括根据估计的可用链路容量和小区资源的估计可用分数来估计用户设备的小区的可用带宽。 当用户设备处于空闲模式和/或连接模式时，可以为通用移动电信系统（UMTS）系统中的小区估计可用带宽。 当用户设备处于空闲模式和/或连接模式时，可以为长期演进（LTE）系统中的小区估计可用带宽。

公开(公告)号：US20240147572A1

公开(公告)日：2024-05-02

申请号：US18261666

申请日：2021-03-10

Applicant: QUALCOMM Incorporated

Inventor： Shweta Jaikrishna DASS ,  Krishna Chaitanya BELLAM ,  Shailesh MAHESHWARI ,  Vishal DALMIYA ,  Gang Andy XIAO ,  Vaishakh RAO ,  Sathish Kumar NALLAMANTI ,  Leena ZACHARIAS ,  Touseef KHAN ,  Sridhar RAMANUJAM ,  Nan ZHANG ,  Xiaojian LONG ,  Ajeet KUMAR

IPC: H04W76/28 ,  H04W52/02

CPC classification number: H04W76/28 ,  H04W52/0216

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE) or component thereof. The apparatus may be configured to transmit to a base station a first request to transmit data in a buffer. The apparatus may be further configured to transmit to the base station a second request to transmit the data in the buffer in absence of a grant in response to the first transmit request. The apparatus may be further configured to remain awake for at least a portion of a scheduled discontinuous reception (DRX) sleep state following the transmission of the second request.

公开(公告)号：US20180152905A1

公开(公告)日：2018-05-31

申请号：US15824753

申请日：2017-11-28

Applicant: QUALCOMM INCORPORATED

Inventor： Sridhar RAMANUJAM ,  Xiaoxia ZHANG ,  Tao LUO ,  Juan MONTOJO

IPC: H04W56/00

CPC classification number: H04W56/0005 ,  H04L27/2602 ,  H04L27/2613

Abstract: The present disclosure provides an example method and an apparatus for transmitting synchronization signals from an eNB with a different subcarrier spacing from rest of transmissions. That is, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) may be transmitted using a first subcarrier spacing, a physical broadcast channel (PBCH), and/or a reference signal (RS) may be transmitted with a second subcarrier spacing, and other transmissions may be made using a third subcarrier spacing that is different from at least one of the first or second subcarrier spacing. Further, the order of symbols mapped to the synchronization signals may be reversed or otherwise modified within a transmission subframe.

公开(公告)号：US20190174441A1

公开(公告)日：2019-06-06

申请号：US16268916

申请日：2019-02-06

Applicant: QUALCOMM INCORPORATED

Inventor： Sridhar RAMANUJAM ,  Xiaoxia ZHANG ,  Tao LUO ,  Juan MONTOJO

IPC: H04W56/00 ,  H04L27/26

Abstract: The present disclosure provides an example method and an apparatus for transmitting synchronization signals from an eNB with a different subcarrier spacing from rest of transmissions. That is, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) may be transmitted using a first subcarrier spacing, a physical broadcast channel (PBCH), and/or a reference signal (RS) may be transmitted with a second subcarrier spacing, and other transmissions may be made using a third subcarrier spacing that is different from at least one of the first or second subcarrier spacing. Further, the order of symbols mapped to the synchronization signals may be reversed or otherwise modified within a transmission subframe.

公开(公告)号：US20170094672A1

公开(公告)日：2017-03-30

申请号：US15274632

申请日：2016-09-23

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Jing LEI ,  Sridhar RAMANUJAM ,  Yongbin WEI

IPC: H04W72/08 ,  H04L12/26 ,  H04W28/02 ,  H04W24/10

Abstract: The disclosure provides for detecting interference in wireless communications. A wireless devices may receive an interfering signal on a portion of unlicensed spectrum. The wireless device may perform cyclic autocorrelation on the interfering signal to determine one or both of a cyclic prefix length and a symbol period. The wireless device may determine a radio access technology of the interfering signal based on one or both of the cyclic prefix length and the symbol period. In an aspect, the wireless device may further transmit an interference report including information regarding the interfering signal including the cyclic prefix length, symbol period, identified radio access technology, or packet length.