公开(公告)号：US20070066336A1

公开(公告)日：2007-03-22

申请号：US11230153

申请日：2005-09-19

Applicant: Lawrence Merboth ,  Subramanian Vasudevan ,  Stanley Vitebsky ,  Henry Ye ,  Lily Zhu

Inventor： Lawrence Merboth ,  Subramanian Vasudevan ,  Stanley Vitebsky ,  Henry Ye ,  Lily Zhu

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04W52/286 ,  H04W52/225 ,  H04W52/32 ,  H04W52/367 ,  H04W52/44

Abstract: There is provided a method and apparatus for reducing packet assistant channel power usage in a wireless telephone system. More specifically, there is provided a method comprising measuring a power usage for a packet assistant channel, determining whether the power usage is above a threshold, and discontinuing transmission over the packet assistant channel for a period of time if the power usage is above the threshold.

Abstract translation: 提供了一种用于减少无线电话系统中的分组辅助信道功率使用的方法和装置。 更具体地，提供了一种方法，包括测量分组辅助信道的功率使用，确定功率使用是否高于阈值，以及如果功率使用高于阈值，则在一段时间内中断在分组辅助信道上的传输 。

公开(公告)号：US20060039282A1

公开(公告)日：2006-02-23

申请号：US10924268

申请日：2004-08-23

Applicant: Subramanian Vasudevan ,  Lily Zhu ,  Jialin Zou

Inventor： Subramanian Vasudevan ,  Lily Zhu ,  Jialin Zou

IPC: H04L12/26

CPC classification number: H04W52/12 ,  H04W52/16 ,  H04W52/286 ,  H04W52/48 ,  H04W52/50

Abstract: A method is provided for controlling a traffic-to-pilot ratio (TPR) in a wireless telecommunications channel. The methodology takes advantage of a preexisting feedback process used in hybrid ARQ transmission systems. Generally, information is transmitted over the communications channel, and then the acknowledgement (ACK) signal, or negative acknowledgements (NACK) signal, is used to adjust the TPR. The TPR is adjusted up substantially in response to receiving a NACK signal, and adjusted slightly down in response to receiving an ACK signal. In this manner, the TPR is rapidly adjusted up when a transmission fails, and is allowed to drift slowly down when a transmission succeeds.

Abstract translation: 提供了一种用于控制无线电信信道中的业务导频比（TPR）的方法。 该方法利用了混合ARQ传输系统中使用的预先存在的反馈过程。 通常，通过通信信道发送信息，然后使用确认（ACK）信号或否定确认（NACK）信号来调整TPR。 响应于接收到NACK信号而基本上调整TPR，并且响应于接收到ACK信号而略微调节TPR。 以这种方式，当传输失败时，TPR被快速调整，并且当传输成功时允许TPR缓慢地漂移。

公开(公告)号：US20050227693A1

公开(公告)日：2005-10-13

申请号：US10822434

申请日：2004-04-12

Applicant: Hongwei Kong ,  Subramanian Vasudevan ,  Henry Ye ,  Jialin Zou

Inventor： Hongwei Kong ,  Subramanian Vasudevan ,  Henry Ye ,  Jialin Zou

IPC: H04L12/56 ,  H04W24/00 ,  H04W36/00 ,  H04W36/06 ,  H04W36/30 ,  H04Q7/00 ,  H04Q7/20

CPC classification number: H04W36/0083 ,  H04W36/06 ,  H04W36/30

Abstract: A sector switch detection method incorporates two independent, concurrent switch detection processes within a sector switch detection block. A frame-based switch detection process operates over a given single period, while a sliding window-based detection system operates over a selected multiple of periods.

Abstract translation: 扇区切换检测方法在扇区切换检测块内并入两个独立的并发切换检测过程。 基于帧的切换检测过程在给定的单个周期内操作，而基于滑动窗口的检测系统在所选择的多个周期内操作。

公开(公告)号：US10219310B2

公开(公告)日：2019-02-26

申请号：US14569091

申请日：2014-12-12

Applicant: Satish Kanugovi ,  Subramanian Vasudevan

Inventor： Satish Kanugovi ,  Subramanian Vasudevan

IPC: H04W28/02 ,  H04W76/15 ,  H04W72/08 ,  H04L12/28 ,  H04W28/08 ,  H04W28/12 ,  H04W76/12 ,  H04W88/16 ,  H04W88/12 ,  H04W88/08 ,  H04W84/12 ,  H04W36/00

Abstract: A radio access network element includes a base station configured to: allocate, based on received radio link measurement information, at least a first portion of downlink packet data convergence protocol (PDCP) packets received at the base station for delivery to a user equipment over a wireless local area network (WLAN) link between a WLAN access point and the user equipment, the received radio link measurement information being indicative of at least one of a WLAN link quality and a loading of the WLAN link; and output the first portion of the received downlink PDCP packets to the WLAN access point for delivery to the user equipment over the WLAN link.

公开(公告)号：US08676215B2

公开(公告)日：2014-03-18

申请号：US12954057

申请日：2010-11-24

Applicant: Jialin Zou ,  Subramanian Vasudevan

Inventor： Jialin Zou ,  Subramanian Vasudevan

IPC: H04W36/00

CPC classification number: H04W52/146 ,  H04W52/244 ,  H04W52/283

Abstract: A method is provided a wireless system for providing an interference suppression zone in a portion of the macro cell coverage area bordering the small-cell coverage area for a small cell, but outside that small-cell coverage area. The transmission power of a UE located within the interference suppression zone is minimized to minimize the inter-cell interference to the small cells. The invention methodology further operates to enhance the redirection/redistribution methods of the art for UEs located in the interference suppression zone, further reducing macro to small cell interference. In further embodiments of the invention, methods are provided for determining the scope of an interference suppression zone and for determining proximity of an UE to the interference suppression zone.

Abstract translation: 提供了一种无线系统，用于在与小小区相邻的小小区覆盖区域附近的小区覆盖区域的一部分内提供干扰抑制区域，但在该小区域覆盖区域之外。 位于干扰抑制区内的UE的发射功率被最小化，以使对小小区的小区间干扰最小化。 本发明方法还用于增强位于干扰抑制区中的UE的本领域的重定向/再分配方法，进一步将宏减小到小小区干扰。 在本发明的另外的实施例中，提供了用于确定干扰抑制区的范围并确定UE与干扰抑制区的接近度的方法。

公开(公告)号：US08675550B2

公开(公告)日：2014-03-18

申请号：US12319094

申请日：2008-12-31

Applicant: Sudarshan A Rao ,  Subramanian Vasudevan ,  Jialin Zou

Inventor： Sudarshan A Rao ,  Subramanian Vasudevan ,  Jialin Zou

IPC: H04W4/00

CPC classification number: H04W92/20 ,  H04W8/24 ,  H04W72/082 ,  H04W88/04

Abstract: An enhanced access terminal (AT) that can serve as a “proxy wireless over-the-air backhaul or relay” is provided, to connect a base station with no backhaul to its neighboring fully functional base station that is connected to the NMS. In a further embodiment, an architecture and protocol for storing and retrieving data at the base station lacking backhaul is provided, and, using that information, a mechanism by which the ATR can communicate the format information to the source to improve interference cancellation at the base station lacking backhaul, and neighboring base stations, due to backhaul transmission from the AT's routing and relaying capability.

Abstract translation: 提供可以用作“代理无线空中回程或中继代理”的增强型接入终端（AT），将基站与没有回程的基站连接到与NMS相连的相邻功能基站。 在另一个实施例中，提供了一种用于在缺少回程的基站处存储和检索数据的架构和协议，并且使用该信息，ATR可以将格式信息传送到源以提高基站处的干扰消除的机制 由于AT的路由和中继能力的回程传输，站点缺乏回程和邻近基站。

公开(公告)号：US08442442B2

公开(公告)日：2013-05-14

申请号：US12588827

申请日：2009-10-29

Applicant: Pantelis Monogioudis ,  Subramanian Vasudevan

Inventor： Pantelis Monogioudis ,  Subramanian Vasudevan

IPC: H04B1/00

CPC classification number: H04J13/16 ,  H04B2201/709709

Abstract: Example methods use secondary scrambling codes in telecommunications networks. The secondary scrambling codes are assigned to mobile stations and channels used by mobile stations that are not adversely affected by the use of secondary scrambling codes. By assigning secondary scrambling codes additional users can utilize telecommunications networks with unique scrambling codes without reducing quality of service or increasing resource consumption. Example methods also reduce interference between mobile stations in the telecommunications networks.

Abstract translation: 示例方法在电信网络中使用二次扰码。 辅助扰码被分配给移动站使用的移动台和信道，这些移动台和信道不受使用次扰码的不利影响。 通过分配次级扰码，附加用户可以利用具有独特扰码的电信网络，而不降低服务质量或增加资源消耗。 示例性方法还减少电信网络中的移动台之间的干扰。

公开(公告)号：US20130023302A1

公开(公告)日：2013-01-24

申请号：US13547509

申请日：2012-07-12

Applicant: Kathiravetpillai Sivanesan ,  Jialin Zou ,  Subramanian Vasudevan

Inventor： Kathiravetpillai Sivanesan ,  Jialin Zou ,  Subramanian Vasudevan

IPC: H04W36/32

CPC classification number: H04W36/32 ,  H04W36/04

Abstract: At least one example embodiment discloses a method of controlling a handover of a user equipment (UE) from a serving base station to a target base station in a heterogeneous network. The method includes determining, by a serving base station, a speed of the UE and a type of the handover, the type of the handover being one of macro cell to macro cell, macro cell to small cell, small cell to macro cell and small cell to small cell, and controlling, by the serving base station, the handover from the serving base station to the target base station based on the speed of the UE and the type of handover.

Abstract translation: 至少一个示例性实施例公开了一种控制用户设备（UE）在异构网络中从服务基站到目标基站的切换的方法。 该方法包括由服务基站确定UE的速度和切换类型，切换类型为宏小区到宏小区，宏小区到小小区，小小区到小区，小小区 小区到小小区，并且由服务基站根据UE的速度和切换类型控制从服务基站到目标基站的切换。

公开(公告)号：US20110211537A1

公开(公告)日：2011-09-01

申请号：US12659201

申请日：2010-03-01

Applicant: Kathiravetpillai Sivanesan ,  Subramanian Vasudevan

Inventor： Kathiravetpillai Sivanesan ,  Subramanian Vasudevan

IPC: H04W72/04 ,  H04L27/28

CPC classification number: H04W56/00 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2646 ,  H04L27/2655 ,  H04W48/12 ,  H04W92/20

Abstract: Provided is a method that includes determining a binary sequence based on a number of symbols in a frame associated with a macro cell. The method further includes performing an autocorrelation calculation on the binary sequence. The method further includes determining a time offset based on minimum values of the autocorrelation calculation. The method further includes broadcasting a control signal including the time offset to a plurality of small cells. The method further includes receiving the control signal including the time offset associated with the frame associated with the macro cell. The method further includes transmitting a frame associated with a small cell synchronized with a frame associated with the macro cell and offset in time by the time offset.

Abstract translation: 提供了一种方法，其包括基于与宏小区相关联的帧中的符号数来确定二进制序列。 该方法还包括对二进制序列执行自相关计算。 该方法还包括基于自相关计算的最小值来确定时间偏移。 该方法还包括向多个小小区广播包括时间偏移的控制信号。 该方法还包括接收包括与与宏小区相关联的帧相关联的时间偏移的控制信号。 所述方法还包括发送与与所述宏小区相关联的帧同步的小小区相关联的帧，并且在时间上偏移所述时间偏移。

公开(公告)号：US07986627B2

公开(公告)日：2011-07-26

申请号：US11332023

申请日：2006-01-13

Applicant: Suman Das ,  Shirish Nagaraj ,  Subramanian Vasudevan ,  Harish Viswanathan

Inventor： Suman Das ,  Shirish Nagaraj ,  Subramanian Vasudevan ,  Harish Viswanathan

IPC: H04J11/00

CPC classification number: H04L5/0053 ,  H04L5/0016

Abstract: A signaling method is provided that can improve the efficiency of forward-link control signaling in OFDM systems. The method involves using a set of forward-link subcarriers that are dedicated for control information, and are shared by a set of two or more users. The control information destined for each user is spread using a respective spreading code, thereby to provide a spread control message. The spread control messages destined for the various users are summed together prior to transmission.

Abstract translation: 提供了一种可以提高OFDM系统中前向链路控制信令的效率的信令方法。 该方法包括使用专用于控制信息的一组前向链路子载波，并由一组两个或更多个用户共享。 使用相应的扩展码来扩展发往每个用户的控制信息，从而提供扩展控制消息。 传输给各种用户的扩展控制消息在发送之前被加在一起。