公开(公告)号：US20180167942A1

公开(公告)日：2018-06-14

申请号：US15889454

申请日：2018-02-06

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Peter GAAL ,  Wanshi CHEN ,  Tingfang JI ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Naga BHUSHAN ,  Aleksandar DAMNJANOVIC ,  Tao LUO

IPC: H04W72/04 ,  H04W28/18 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/003 ,  H04W28/18

Abstract: Certain aspects of the present disclosure relate to techniques for configuring an adaptive frame structure for wireless communications systems using unlicensed radio frequency spectrum. A base station (BS) may determine whether another device is transmitting on a channel in the unlicensed radio frequency spectrum or one or more other network conditions pertaining to the channel, determine a frame structure from a plurality of frame structures used for data communications based at least in part on the one or more network conditions, wherein each of the plurality of frame structures has a different frame duration, and communicate with a user equipment (UE) using the determined frame structure. A UE may determine a frame structure from a plurality of frame structures used for data communications, wherein each of the plurality of frame structures has a different frame duration, and communicate with a BS using the determined frame structure.

公开(公告)号：US20180027534A1

公开(公告)日：2018-01-25

申请号：US15711470

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Peter GAAL ,  Wanshi CHEN ,  Shimman Arvind PATEL ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Aleksandar DAMNJANOVIC ,  Onkar DABEER

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L1/00 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0064 ,  H04W72/0446 ,  H04W72/14 ,  H04W88/02

Abstract: An example data structure for managing user equipment communications in a wireless communications system is presented, as well as methods and apparatuses configured to implement the data structure. For instance, the data structure may include a downlink subframe comprising two slots and including one or more quick downlink channels having a single-slot transmission time interval. In addition, the example data structure may include one or more resource element blocks each comprising one or more resource elements into which a frequency bandwidth is divided within one or both of the two slots, wherein each of the one or more resource element blocks comprises a control channel region or a data channel region. Furthermore, the example data structure may include one or more resource grants, located within one or more control channel regions, for one or more user equipment served by the one or more quick downlink channels.

公开(公告)号：US20180020360A1

公开(公告)日：2018-01-18

申请号：US15610869

申请日：2017-06-01

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alberto RICO ALVARINO ,  Hao XU ,  Wanshi CHEN ,  Juan MONTOJO ,  Yongbin WEI ,  Peter GAAL

IPC: H04W16/14 ,  H04B1/713 ,  H04W56/00 ,  H04B1/7156

CPC classification number: H04W72/0453 ,  H04B1/713 ,  H04B1/7143 ,  H04B1/7156 ,  H04B1/7183 ,  H04B2001/71563 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/0098 ,  H04L27/0006 ,  H04L27/2634 ,  H04L27/2655 ,  H04L67/12 ,  H04W16/14 ,  H04W52/143 ,  H04W52/146 ,  H04W52/346 ,  H04W56/00 ,  H04W56/0005 ,  H04W56/0015 ,  H04W72/042 ,  H04W72/0473 ,  H04W74/006 ,  H04W74/085 ,  H04W76/27 ,  H04W76/28 ,  H04W88/08

Abstract: Various aspects of utilizing narrowband internet of things (NB IOT) communication are still under development. According to an aspect of the disclosure, the apparatus may be a user equipment (UE) for wireless communication via narrowband internet of things (NB IOT) in an unlicensed spectrum using frequency hopping and digital modulation. The UE performs a synchronization with a base station via at least one of a licensed spectrum or the unlicensed spectrum. The UE communicates with the base station based on the synchronization.

公开(公告)号：US20180019828A1

公开(公告)日：2018-01-18

申请号：US15718538

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  Tao LUO ,  Yongbin WEI

IPC: H04B15/00 ,  H04L5/00 ,  H04W24/02 ,  H04W72/12

CPC classification number: H04B15/00 ,  H04L5/003 ,  H04W24/02 ,  H04W72/1226 ,  H05K999/99

Abstract: Suppression of serving cell transmissions directed to second-served UEs may improve channel estimation of a serving cell or a neighbor cell. This may include using scheduling information for second-served UEs to suppress serving cell signals intended for second-served UEs having overlapping MIMO transmissions. Alternatively, this scheduling information may aid in suppressing a serving cell signal for a second-served UE to improve channel estimation of a neighbor cell. Various embodiments described herein, include implementations and techniques to aid channel estimation, and signal scheduling information to a first-served UE to aid in suppression of serving cell signals for second-served UEs.

公开(公告)号：US20170164339A1

公开(公告)日：2017-06-08

申请号：US15435819

申请日：2017-02-17

Applicant: QUALCOMM Incorporated

Inventor： Stefan GEIRHOFER ,  Peter GAAL ,  Yongbin WEI

IPC: H04W72/04 ,  H04W24/10 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/005 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/082

Abstract: Methods and apparatus are provided for assigning interference measurement resources. A method includes receiving at least one identifier, which determines, at least in part, at least one interference measurement resource that partially overlaps with another at least one interference measurement resource. The at least one interference measurement resource comprises a number of resource elements out of a set of resource elements. The method also includes measuring interference based at least in part on the at least one interference measurement resource.

公开(公告)号：US20170135052A1

公开(公告)日：2017-05-11

申请号：US15245498

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Hao XU ,  Peter GAAL ,  Xiaofeng WANG ,  Wanshi CHEN ,  Yongbin WEI ,  Juan MONTOJO ,  Alberto RICO ALVARINO

IPC: H04W56/00 ,  H04W16/32 ,  H04J13/00

CPC classification number: H04W56/001 ,  H04J13/0062 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2659 ,  H04L27/266 ,  H04W16/32 ,  H04W88/08 ,  H04W88/12

Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.

公开(公告)号：US20170127454A1

公开(公告)日：2017-05-04

申请号：US15403992

申请日：2017-01-11

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Peter GAAL ,  Wanshi CHEN ,  Aleksandar DAMNJANOVIC ,  Tao LUO

IPC: H04W74/08 ,  H04W52/02 ,  H04L5/00

CPC classification number: H04W52/0225 ,  H04B7/14 ,  H04L5/0007 ,  H04W52/0206 ,  H04W52/0209 ,  H04W52/0216 ,  H04W52/0229 ,  H04W74/0833 ,  H04W88/04 ,  H04W88/08 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24 ,  Y02D70/25

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus transitions to a dormant state and transmits a very low duty cycle signal (LDCS) while in the dormant state. The apparatus may transmit an LDCS configuration to a second entity, the second entity being one of an LPN that is not in a dormant state and a macro cell. The apparatus may further monitor for a RACH messages at a predetermined RACH delay after transmitting the LDCS. The apparatus may transition to a DRX/DTX mode. The DRX/DTX mode may be matched to at least one connected UE.

公开(公告)号：US20170086140A1

公开(公告)日：2017-03-23

申请号：US15371507

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Peter GAAL ,  Wanshi CHEN ,  Aleksandar DAMNJANOVIC ,  Tao LUO

IPC: H04W52/02 ,  H04B7/14

CPC classification number: H04W52/0225 ,  H04B7/14 ,  H04L5/0007 ,  H04W52/0206 ,  H04W52/0209 ,  H04W52/0216 ,  H04W52/0229 ,  H04W74/0833 ,  H04W88/04 ,  H04W88/08 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24 ,  Y02D70/25

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives an LDCS configuration for a UE relay from a second entity and monitors for an LDCS from the UE relay based on the received LDCS configuration. The second entity may comprise one of an LPN that is not in a dormant state and a Macro cell. The apparatus may receive LDCS configurations for a plurality of LPNs and monitor for a plurality of LPNs based on the received LDCS configurations. When the apparatus determines a need to connect to a LPN, the apparatus may select an LPN among the plurality of LPNs.

公开(公告)号：US20170048919A1

公开(公告)日：2017-02-16

申请号：US15232672

申请日：2016-08-09

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Srinivas YERRAMALLI ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Alexei Yurievitch GOROKHOV ,  Brian BANISTER ,  Michael Lee MCCLOUD ,  Tao LUO ,  Supratik BHATTACHARJEE ,  Chengjin ZHANG ,  Ravi Teja SUKHAVASI

IPC: H04W76/04 ,  H04W72/00 ,  H04W72/14 ,  H04W72/04 ,  H04B7/06

Abstract: Various aspects related to techniques for harmonization between common reference signal (CRS) and demodulation reference signal (DM-RS) based transmission modes (TMs) in unlicensed spectrum are described. In one aspect, a downlink/uplink (DL/UL) subframe configuration may be signaled for each subframe. Information provided by the DL/UL subframe configuration may indicate whether the respective downlink subframe is a single-frequency network (MBSFN) subframe (associated with DM-RS-based TM) or a non-MBSFN subframe (associated with CRS-based TM). In another aspect, periodic as well as aperiodic channel state information (CSI) reporting requests may be supported. In yet another aspect, discontinued reception (DRX) wake ups for unlicensed carriers may be explicitly or implicitly indicated to a user equipment (UE) via a carrier in a licensed spectrum.

Abstract translation: 描述与非许可频谱中的公共参考信号（CRS）和基于解调参考信号（DM-RS）的传输模式（TM）之间的协调技术相关的各个方面。 在一个方面，可以为每个子帧发信号通知下行链路/上行链路（DL / UL）子帧配置。 由DL / UL子帧配置提供的信息可以指示相应的下行链路子帧是单频网络（MBSFN）子帧（与基于DM-RS的TM相关联）还是非MBSFN子帧（与基于CRS的TM相关联） 。 在另一方面，可以支持周期性和非周期性信道状态信息（CSI）报告请求。 在另一方面，可以通过许可频谱中的运营商向用户设备（UE）明确地或隐含地指示用于未授权载体的中断接收（DRX）唤醒。

公开(公告)号：US20160360478A1

公开(公告)日：2016-12-08

申请号：US15239711

申请日：2016-08-17

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad MALLADI ,  Yongbin WEI ,  Peter GAAL ,  Gavin Bernard HORN ,  Hao XU ,  Tao LUO ,  Aleksandar DAMNJANOVIC ,  Wanshi CHEN

IPC: H04W52/02 ,  H04W36/38 ,  H04W72/04 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W52/0206 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0087 ,  H04W24/02 ,  H04W36/38 ,  H04W72/042 ,  H04W74/0833 ,  H04W76/27 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/25

Abstract: A method of wireless communication for an enhanced new carrier type cell includes transmitting downlink common signals and channels at a low duty cycle while in a dormant state. The method also includes transmitting downlink common signals and channels at a high duty cycle while in an active state. Another method of wireless communication includes receiving a trigger; and switching a cell between an active state and a dormant state based on the received trigger.

Abstract translation: 用于增强型新载波类型小区的无线通信的方法包括在处于休眠状态的低占空比下传输下行链路公共信号和信道。 该方法还包括在处于活动状态的高占空比下传输下行链路公共信号和信道。 无线通信的另一种方法包括：接收触发; 以及基于接收的触发在活动状态和休眠状态之间切换小区。