公开(公告)号：US20150223089A1

公开(公告)日：2015-08-06

申请号：US14610707

申请日：2015-01-30

Applicant: Broadcom Corporation

Inventor： Soumen Chakraborty ,  Sindhu Verma

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04W52/0209 ,  H04W56/001 ,  H04W56/0015 ,  H04W76/28 ,  H04W84/042 ,  H04W84/10 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/24 ,  Y02D70/25

Abstract: Devices and methods for determining timing offsets between wireless devices are provided. One method includes transmitting, from a first device, a request for timing data to first user equipment and receiving a response. The timing data is indicative of a frame timing associated with a reference time for both the first device and a second device. The method further includes determining a timing offset between the frame timing for the first device and a frame timing for the second device based on the timing data. Another method includes receiving a reference time from a timing reference device, applying a timestamp to frame timing data for the first device, receiving frame timing data from the second device time-stamped based on the reference time, and comparing the timing data to determine a time offset between the devices.

Abstract translation: 提供了用于确定无线设备之间的定时偏移的装置和方法。 一种方法包括从第一设备向第一用户设备发送定时数据的请求并接收响应。 定时数据表示与第一设备和第二设备两者的参考时间相关联的帧定时。 该方法还包括基于定时数据确定第一设备的帧定时和第二设备的帧定时之间的定时偏移。 另一方法包括从定时参考装置接收参考时间，将时间戳应用于第一装置的帧定时数据，基于参考时间从时间标记的第二装置接收帧定时数据，以及比较定时数据以确定 设备之间的时间偏移。

公开(公告)号：US20140369310A1

公开(公告)日：2014-12-18

申请号：US14310715

申请日：2014-06-20

Applicant: BROADCOM CORPORATION

Inventor： Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04W72/044

Abstract: Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames, The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.

Abstract translation: 公开了在第一无线收发器和第二无线收发器之间分配多个周期性分布的通信帧的方法。 一种方法包括检测用于无线基站和无线移动单元之间的传输的周期性数据。 生成映射频率和时隙的传输图，用于传输数据分组。 分配信息被包括在多个周期性分布的帧的多个传输图的小于全部中。分配信息指定将被标识为周期性数据类型的数据分组发送到多个第二无线收发器的频率和时隙 的周期性分布式帧。

公开(公告)号：US20140355566A1

公开(公告)日：2014-12-04

申请号：US14295285

申请日：2014-06-03

Applicant: Broadcom Corporation

Inventor： John WALLEY ,  Wael Diab ,  Rafael Carmon ,  Raymond Hayes ,  Kamlesh Rath ,  Sindhu Verma ,  Soumen Chakraborty ,  Pavan Nuggehalli ,  Shao-Cheng Wang ,  Nicholas Ilyadis ,  Murat Mese

IPC: H04W36/30

CPC classification number: H04W36/245

Abstract: Systems and methods for adaptive access and handover configuration based on historical data are provided. Access and handover decisions are optimized in a multiple radio access technology environment using historical data associated with network performance. Future needs for access and handovers are predicted using historical data associated with the user and historical data associated with network performance. Performance metrics are received periodically or continuously from nodes in one or more networks at a centralized controller. The centralized multi RAT controller correlates these performance metrics and determines predicted handovers for a user device. Preparations for the predicted handovers can then be made prior to the handover event.

Abstract translation: 提供了基于历史数据的自适应接入和切换配置的系统和方法。 使用与网络性能相关联的历史数据，在多个无线电接入技术环境中优化接入和切换决策。 使用与用户相关联的历史数据和与网络性能相关联的历史数据预测访问和切换的未来需求。 从集中式控制器的一个或多个网络中的节点周期性或连续地接收性能度量。 集中式多RAT控制器将这些性能度量相关联并确定用户设备的预测切换。 然后可以在切换事件之前进行预测切换的准备。

公开(公告)号：US08873371B2

公开(公告)日：2014-10-28

申请号：US13631254

申请日：2012-09-28

Applicant: Broadcom Corporation

Inventor： Soumen Chakraborty ,  Erik Stauffer

IPC: H04L1/00

CPC classification number: H04W8/30 ,  H04W52/0216 ,  H04W52/0274 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: A technique to receive a Multimedia Broadcast Multicast Service (MBMS) broadcast, in which a plurality of source symbols and repair symbols of a broadcast from a broadcast source are received at a User Equipment or User Device (UE). The source symbols and repair symbols are based on fountain codes, so that not all of the repair symbols are used to recover the originally sourced data. An application layer of the UE recovers the sourced data and places the receiver in a power-save mode following the last repair symbol used to recover the sourced data, so that remaining repair symbols are not received by the receiver and subsequently processed.

Abstract translation: 一种用于接收多媒体广播多播服务（MBMS）广播的技术，其中在用户设备或用户设备（UE）处接收到来自广播源的广播的多个源符号和修复符号。 源符号和修复符号基于喷泉代码，因此并不是所有修复符号都用于恢复原始来源的数据。 UE的应用层恢复源数据，并将接收机放置在按照用于恢复来源数据的最后修复符号之后的省电模式，使得剩余的修复符号不被接收机接收并随后处理。

公开(公告)号：US20140211757A1

公开(公告)日：2014-07-31

申请号：US14166709

申请日：2014-01-28

Applicant: Broadcom Corporation

Inventor： Stephanie PEREIRA ,  Leena Zacharias ,  Pavan Nuggehalli ,  Shao-Cheng Wang ,  Soumen Chakraborty ,  Sindhu Verma

IPC: H04W36/12

CPC classification number: H04W36/0055 ,  H04W36/12 ,  H04W76/27

Abstract: Carrier aggregation and dual connectivity allow a user device to communicate with one or more base stations on multiple component carrier frequencies. When it is determined that the user device should handover to a new base station, the user device performs a substantial portion of the needed handover operations with the new base station using only one of the component carrier frequencies. Meanwhile, the user device maintains data communications with the original base station on the remaining component carrier frequencies.

Abstract translation: 载波聚合和双连接允许用户设备与多个分量载波频率上的一个或多个基站进行通信。 当确定用户设备应该切换到新的基站时，用户设备仅使用分量载波频率中的一个来执行新基站所需切换操作的实质部分。 同时，用户设备在剩余分量载波频率上维持与原始基站的数据通信。

公开(公告)号：US20140040694A1

公开(公告)日：2014-02-06

申请号：US13934621

申请日：2013-07-03

Applicant: BROADCOM CORPORATION

Inventor： Sindhu Verma ,  Shubhodeep Adhikari ,  Soumen Chakraborty

IPC: H04L1/18

CPC classification number: H04L1/1812 ,  H04L1/1819 ,  H04L1/1887

Abstract: TTI bundling is included for Msg3 transmissions in LTE communications. A reserved group of preambles or reserved set of random access preamble transmission opportunities are used to indicate user equipment (UE) need of uplink (UL) transmission of a TTI-bundled Msg3. The UE transmits the same redundancy version for transmissions within a TTI bundle as the eNB expects even if any of the transmissions are dropped due to collisions with an Msg3 transmission. In addition, co-existence of TTI bundling and UL semi-persistent scheduling (SPS) for TDD DL/UL configurations is provided using SPS intervals which are multiples of various fixed time periods.

Abstract translation: TTI捆绑包含在LTE通信中的Msg3传输。 使用保留的前导码组或预留的随机接入前导码传输机会组来指示用户设备（UE）对TTI绑定的Msg3的上行链路（UL）传输的需求。 即使由于与Msg3传输的冲突而导致任何传输丢失，UE也会传输针对TTI束内传输的相同冗余版本。 此外，使用作为各种固定时间段的倍数的SPS间隔来提供用于TDD DL / UL配置的TTI绑定和UL半永久调度（SPS）的共存。

公开(公告)号：US20130308483A1

公开(公告)日：2013-11-21

申请号：US13947638

申请日：2013-07-22

Applicant: Broadcom Corporation

Inventor： Louay JALLOUL ,  Sam P. Alex ,  Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04W24/10 ,  H04W48/18 ,  H04W88/06

Abstract: A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.

Abstract translation: 公开了一种选择移动单元的多个接收机链中的哪一个接收无线信号的方法和装置。 一种方法包括测量第一接收信号质量，同时所有多个接收机链都在接收无线信号，并且在多个接收机链的子集正在接收无线信号的同时测量第二接收信号质量。 选择多个接收机链的子集以接收无线信号，除非第一接收信号质量是比第二接收信号质量好的阈值。 如果第一接收信号质量是比第二接收信号质量好的阈值，则选择所有多个接收机链以接收无线信号。

公开(公告)号：US09237490B2

公开(公告)日：2016-01-12

申请号：US14166709

申请日：2014-01-28

Applicant: Broadcom Corporation

Inventor： Stephanie Pereira ,  Leena Zacharias ,  Pavan Nuggehalli ,  Shao-Cheng Wang ,  Soumen Chakraborty ,  Sindhu Verma

IPC: H04W36/12 ,  H04W36/00 ,  H04W76/04

CPC classification number: H04W36/0055 ,  H04W36/12 ,  H04W76/27

Abstract: Carrier aggregation and dual connectivity allow a user device to communicate with one or more base stations on multiple component carrier frequencies. When it is determined that the user device should handover to a new base station, the user device performs a substantial portion of the needed handover operations with the new base station using only one of the component carrier frequencies. Meanwhile, the user device maintains data communications with the original base station on the remaining component carrier frequencies.

Abstract translation: 载波聚合和双连接允许用户设备与多个分量载波频率上的一个或多个基站进行通信。 当确定用户设备应该切换到新的基站时，用户设备仅使用分量载波频率中的一个来执行新基站所需切换操作的实质部分。 同时，用户设备在剩余分量载波频率上保持与原始基站的数据通信。

公开(公告)号：US09197376B2

公开(公告)日：2015-11-24

申请号：US13934621

申请日：2013-07-03

Applicant: BROADCOM CORPORATION

Inventor： Sindhu Verma ,  Shubhodeep Adhikari ,  Soumen Chakraborty

IPC: H04L1/18

CPC classification number: H04L1/1812 ,  H04L1/1819 ,  H04L1/1887

Abstract: TTI bundling is included for Msg3 transmissions in LTE communications. A reserved group of preambles or reserved set of random access preamble transmission opportunities are used to indicate user equipment (UE) need of uplink (UL) transmission of a TTI-bundled Msg3. The UE transmits the same redundancy version for transmissions within a TTI bundle as the eNB expects even if any of the transmissions are dropped due to collisions with an Msg3 transmission. In addition, co-existence of TTI bundling and UL semi-persistent scheduling (SPS) for TDD DL/UL configurations is provided using SPS intervals which are multiples of various fixed time periods.

Abstract translation: TTI捆绑包含在LTE通信中的Msg3传输。 使用保留的前导码组或预留的随机接入前导码传输机会组来指示用户设备（UE）对TTI绑定的Msg3的上行链路（UL）传输的需求。 即使由于与Msg3传输的冲突而导致任何传输丢失，UE也会传输针对TTI束内传输的相同冗余版本。 此外，使用作为各种固定时间段的倍数的SPS间隔来提供用于TDD DL / UL配置的TTI绑定和UL半永久调度（SPS）的共存。

公开(公告)号：US09100844B2

公开(公告)日：2015-08-04

申请号：US13947638

申请日：2013-07-22

Applicant: Broadcom Corporation

Inventor： Louay Jalloul ,  Sam P. Alex ,  Soumen Chakraborty ,  Sindhu Verman ,  Manish Airy ,  Anuj Puri

IPC: H04B17/02 ,  H04W24/00 ,  H04W48/18 ,  H04W24/10 ,  H04W88/06

CPC classification number: H04W24/00 ,  H04W24/10 ,  H04W48/18 ,  H04W88/06

Abstract: A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.