公开(公告)号：US20160295538A1

公开(公告)日：2016-10-06

申请号：US14678620

申请日：2015-04-03

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Rahul Malik ,  Peerapol Tinnakornsrisuphap

IPC: H04W56/00 ,  H04W72/12

CPC classification number: H04W56/0045 ,  H04L1/00 ,  H04L1/1854 ,  H04W56/003 ,  H04W72/12 ,  H04W72/1231 ,  H04W84/12 ,  H04W88/06

Abstract: Methods, systems, and devices are described for dealing with mutual clock drifts for communications over multiple RATs by maintaining a guard interval. A guard interval is a time interval during which no transmissions should occur. For example, the guard interval may be set relative to a scheduled interference interval of a STA so that transmissions to the STA from an AP will not collide with different RAT (e.g., interference) transmissions/receptions even with clock drift (e.g., a guard interval at both sides of the scheduled interference interval). Such an approach may allow the clocks to be re-synchronized (e.g., by the STA notifying the AP of the schedule of interference interval) infrequently to avoid excessive signaling overhead, which would increase with an increase in the number of coexistence STAs being serviced by the AP.

Abstract translation: 描述了通过维持保护间隔来处理通过多个RAT进行通信的相互时钟漂移的方法，系统和设备。 保护间隔是不发生传输的时间间隔。 例如，可以相对于STA的调度的干扰间隔来设置保护间隔，使得即使在时钟漂移（即，卫星）的情况下，来自AP的到STA的传输也不会与不同的RAT（例如，干扰）传输/接收相冲突 间隔在两侧的调度干扰间隔）。 这样的方法可以允许时钟被重新同步（例如，通过STA通知AP干扰间隔的调度表），以避免过多的信令开销，这将随着被共同服务的STA的数量的增加而增加 AP。

公开(公告)号：US20160255642A1

公开(公告)日：2016-09-01

申请号：US15051457

申请日：2016-02-23

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Hemanth Sampath

IPC: H04W72/12 ,  H04W74/04

CPC classification number: H04W72/1215 ,  H04W74/04 ,  H04W74/0816 ,  H04W88/10

Abstract: Certain aspects of the present disclosure relate to a methods and apparatus for wireless communication. In one aspect, a method a method of communication over a wireless medium. The method includes transmitting, from a first wireless device, a first communication reserving access to the wireless medium during an indicated first time period. The first communication includes a contention-based transmission. The method further includes transmitting, during the first time period, a second communication reserving access to the wireless medium during an indicated second time period at least partially overlapping the first. The second communication includes a scheduled transmission. The method further includes transmitting or receiving a long term evolution unlicensed (LTE-U) transmission during the second time period.

Abstract translation: 本公开的某些方面涉及无线通信的方法和装置。 一方面，一种通过无线介质进行通信的方法。 该方法包括在第一时间段期间从第一无线设备发送保留对无线介质的访问的第一通信。 第一通信包括基于竞争的传输。 所述方法还包括在所述第一时间段期间，在指示的第二时间段期间，至少部分地与所述第一时间段重叠的第二通信传输保留对所述无线介质的访问。 第二通信包括预定传输。 该方法还包括在第二时间段期间发送或接收长期进化未许可（LTE-U）传输。

公开(公告)号：US20160037559A1

公开(公告)日：2016-02-04

申请号：US14446010

申请日：2014-07-29

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Jay Kumar Sundararajan

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04L47/6215 ,  H04L47/822

Abstract: A system and method are disclosed that may provide an accurate estimate of an AP's available capacity. The AP may simulate medium access contention operations using actual packets being transmitted from the AP to associated STAs and virtual packets indicative of traffic that would be transmitted to a new STA that is not currently associated with AP. The AP may determine a transmission schedule for the actual packets and virtual packets based on the simulated medium access contention operations, and then determine what portion of the available capacity is allocated to the virtual packets based, at least in part, on the transmission schedule.

Abstract translation: 公开了可以提供AP可用容量的准确估计的系统和方法。 AP可以使用从AP发送到相关联的STA的实际分组以及指示将被发送到当前未与AP相关联的新STA的业务的虚拟分组来模拟媒体接入争用操作。 AP可以基于模拟的媒体接入争用操作来确定实际分组和虚拟分组的传输调度，然后至少部分地基于传输调度确定可用容量的哪部分被分配给虚拟分组。

公开(公告)号：US20150303741A1

公开(公告)日：2015-10-22

申请号：US14256576

申请日：2014-04-18

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Peerapol Tinnakornsrisuphap ,  Bibhu Prasad Mohanty

IPC: H02J17/00

CPC classification number: H02J50/20 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0037 ,  H04B7/00 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0007 ,  H04W72/04 ,  H04W84/12

Abstract: An energy transmitting device (e.g., access point) can transmit an energy signal to a wireless device. The wireless device can obtain energy from the energy signal. The energy signal may be transmitted via an unused frequency sub-range of a frequency range associated with a communication signal. In one embodiment, the energy signal may occupy a frequency sub-range in unused frequencies of an orthogonal frequency division multiplexed (OFDM) signal transmission. The energy signal may be transmitted in a manner that coexists without interfering with traditional communication signals. Various control/configuration settings may be used to enable or disable the energy signal, for example, based on capability of a wireless device to harvest energy from the energy signal or in accordance with a schedule.

Abstract translation: 能量发送装置（例如，接入点）可以向无线装置发送能量信号。 无线设备可以从能量信号获得能量。 能量信号可以经由与通信信号相关联的频率范围的未使用的频率子范围来发送。 在一个实施例中，能量信号可以占据正交频分复用（OFDM）信号传输的未使用频率中的频率子范围。 能量信号可以在不干扰传统通信信号的情况下共存的方式发送。 可以使用各种控制/配置设置来启用或禁用能量信号，例如，基于无线设备从能量信号收集能量或根据时间表收集能量的能力。

公开(公告)号：US20140226497A1

公开(公告)日：2014-08-14

申请号：US13763680

申请日：2013-02-10

Applicant: QUALCOMM INCORPORATED

Inventor： Gang DING ,  Kiran S. CHIKKAPPA ,  Patrik N. LUNDQVIST ,  Rahul Malik

IPC: H04W28/02

CPC classification number: H04W28/0231 ,  H04W74/0808

Abstract: A method of adjusting a carrier sense threshold to avoid hidden nodes during wireless broadcast. The method includes monitoring a load of the peer-to-peer network before broadcasting a message from a node. The method also includes adjusting a carrier sense threshold (CST) based on the load of the peer-to-peer network to avoid broadcast message collisions due to one or more hidden nodes.

Abstract translation: 一种在无线广播期间调整载波侦听阈值以避免隐藏节点的方法。 该方法包括在从节点广播消息之前监视对等网络的负载。 该方法还包括基于对等网络的负载来调整载波侦听阈值（CST），以避免由于一个或多个隐藏节点引起的广播消息冲突。