公开(公告)号：US20190159223A1

公开(公告)日：2019-05-23

申请号：US15820342

申请日：2017-11-21

Applicant: QUALCOMM Incorporated

Inventor： Cheol Hee PARK ,  Arvind SANTHANAM ,  Feng LU ,  Taoufik TANI ,  Thomas CHRISTOL ,  Yunsong MU ,  Yuanbo WANG ,  Gang XIAO ,  Abhijit Navalekar ,  Ashish Shankar Iyer ,  Subramanya Rao ,  Srinivasan Rajagopalan

IPC: H04W72/12 ,  H04W40/12 ,  H04W24/08 ,  H04W72/08 ,  H04W28/02

Abstract: A method, apparatus, and computer-readable medium at a transmitting user equipment (UE) in a distributed cellular vehicle-to-everything environment are disclosed to determine a schedule for transmissions on subchannels of multiple frequencies based on a set of UE-specific, dynamic, and performance related metrics or criteria. The metrics may include an estimated number of users on a subchannel, a best-bandwidth fit, channel loading conditions, transmission range, and quality requirements of an application, among others. Such a schedule for transmissions on subchannels of multiple frequencies may result in either an improved capacity utilization, an improved communication quality, or both.

公开(公告)号：US20150351153A1

公开(公告)日：2015-12-03

申请号：US14723850

申请日：2015-05-28

Applicant: QUALCOMM Incorporated

Inventor： Vasanth Kumar Ramkumar ,  Deepak Krishnamoorthi ,  Navid Ehsan ,  Srinivasan Rajagopalan ,  Bao Vinh Nguyen

IPC: H04W76/04 ,  H04L5/00 ,  H04W74/00 ,  H04L1/18

CPC classification number: H04W74/004 ,  H04L1/1812 ,  H04L1/1861 ,  H04L1/188 ,  H04L1/1887 ,  H04L5/0048 ,  H04W52/0216 ,  H04W76/28 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/24

Abstract: Methods, systems, and devices are described for improving discontinuous reception (DRX) periods using enhanced physical HARQ indicator channel (PHICH) decoding. A user equipment (UE) may determine that an uplink (UL) retransmission (ReTx) is unnecessary based on the content of the original UL transmission. For example, the transmission may include media access control (MAC) layer padding rather than relevant application layer data. The UE may then identify a DRX sleep period that includes the subframe where the ReTx would take place. In some cases, the DRX sleep period may include a subframe where the UE would otherwise receive an acknowledgement message (AM) from a base station. The UE may then enter a DRX sleep state. In another example, the DRX sleep period is based on the content of a received AM. If the UE receives an ACK, the UL ReTx may be unnecessary.

Abstract translation: 描述了使用增强的物理HARQ指示符信道（PHICH）解码来改善不连续接收（DRX）周期的方法，系统和设备。 用户设备（UE）可以基于原始UL传输的内容来确定不需要上行链路（UL）重传（ReTx）。 例如，传输可以包括媒体访问控制（MAC）层填充而不是相关的应用层数据。 然后，UE可以识别包括将发生ReTx的子帧的DRX休眠周期。 在一些情况下，DRX休眠期可以包括UE将否则从基站接收确认消息（AM）的子帧。 然后，UE可以进入DRX睡眠状态。 在另一示例中，DRX休眠期基于所接收的AM的内容。 如果UE接收到ACK，那么UL ReTx可能是不必要的。

公开(公告)号：US09131441B2

公开(公告)日：2015-09-08

申请号：US13796961

申请日：2013-03-12

Applicant: QUALCOMM Incorporated

Inventor： Vaibhav Singhal ,  Praveen N. Kona ,  Srinivasan Rajagopalan

IPC: H04W4/00 ,  H04W52/02 ,  H04W48/16 ,  H04W76/04 ,  H04W68/00 ,  G08C17/00 ,  H04J1/16

CPC classification number: H04W52/0209 ,  H04W36/0083 ,  H04W36/14 ,  H04W48/16 ,  H04W48/18 ,  H04W76/28 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24

Abstract: Disclosed are methods and apparatus for performing a better PLMN (BPLMN) search during connected mode DRX. In one aspect, a user equipment (UE) detects a trigger to begin a BPLMN search while in connected mode discontinuous reception (CDRX); determines whether it is configured for a manual BPLMN search; determine whether the CDRX duration is greater than or equal to the minimum amount of time required to perform the manual BPLMN search; and when determined that the CDRX duration is greater than or equal to the minimum amount of time required for the BPLMN search, performs the manual BPLMN search while in the CDRX.

Abstract translation: 公开了用于在连接模式DRX期间执行更好的PLMN（BPLMN）搜索的方法和装置。 在一个方面，用户设备（UE）在连接模式不连续接收（CDRX）期间检测触发开始BPLMN搜索; 确定是否配置为手动BPLMN搜索; 确定CDRX持续时间是否大于或等于执行手动BPLMN搜索所需的最小时间量; 并且当确定CDRX持续时间大于或等于BPLMN搜索所需的最小时间量时，在CDRX中执行手动BPLMN搜索。

公开(公告)号：US20150131461A1

公开(公告)日：2015-05-14

申请号：US14216399

申请日：2014-03-17

Applicant: QUALCOMM Incorporated

Inventor： Vasanth Kumar Ramkumar ,  Srinivasan Rajagopalan ,  Jeffrey A. Niemann ,  Vijay Raman ,  Christopher Lee Medrano ,  Jon James Anderson ,  Amit Mahajan

IPC: H04W52/02

CPC classification number: H04W52/0251 ,  G06F1/3212 ,  G06F1/3278 ,  H04W52/0245 ,  H04W52/0277 ,  Y02D10/157 ,  Y02D10/174 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/24

Abstract: Methods, systems, and devices are described for managing power of a user equipment (UE). A UE modem may determine the state of charge of the battery to determine that the battery is in one of two or more charge state levels, and may invoke one or more modem power saving modes based on the charge state level. Power saving modes may include, for example, reducing a number of available receive chains in a UE, initiating a time delay between one or more frequency scan requests performed by the UE, reducing a rate of neighbor search requests performed by the UE, providing a buffer status report (BSR) parameter that indicates a reduced amount of buffer data relative to an actual amount of buffer data for the UE, and/or adjusting a maximum transmit power level for an uplink channel.

Abstract translation: 描述了用于管理用户设备（UE）的功率的方法，系统和设备。 UE调制解调器可以确定电池的充电状态以确定电池处于两个或多个充电状态电平之一，并且可以基于充电状态电平来调用一个或多个调制解调器功率节省模式。 省电模式可以包括例如减少UE中的可用接收链的数量，发起由UE执行的一个或多个频率扫描请求之间的时间延迟，降低由UE执行的邻居搜索请求的速率， 缓冲器状态报告（BSR）参数，其指示缓冲器数据相对于UE的实际缓冲器数据量减少的量和/或调整上行链路信道的最大发射功率电平。

公开(公告)号：US20140086145A1

公开(公告)日：2014-03-27

申请号：US13802001

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Vasanth Kumar Ramkumar ,  Muralidharan Murugan ,  Pratik Kotkar ,  Aparna S. Ghorpade ,  Srinivasan Rajagopalan

IPC: H04H20/16

CPC classification number: H04H20/16 ,  H04L1/08 ,  H04L1/1832 ,  H04L1/1864 ,  H04L1/189

Abstract: Techniques for optimized HARQ recombining are provided. In one exemplary embodiment, a method for wireless communication comprises receiving a broadcast message to determine a timing of a transmission window, receiving at least one transmission within the transmission window, and determining whether the at least one transmission is successfully decoded. The method further comprises instructing a lower protocol layer to ignore remaining transmissions within the transmission window upon a determination that the at least one transmission is successfully decoded, wherein the remaining transmissions and the at least one transmission comprise duplicate copies of a message segment.

Abstract translation: 提供了优化HARQ重组技术。 在一个示例性实施例中，一种用于无线通信的方法包括：接收广播消息以确定传输窗口的定时，在所述传输窗口内接收至少一个传输，以及确定所述至少一个传输是否被成功解码。 所述方法还包括在确定所述至少一个传输被成功解码时，指示较低协议层忽略所述传输窗口内的剩余传输，其中所述剩​​余传输和所述至少一个传输包括消息段的重复副本。