公开(公告)号：US20140093004A1

公开(公告)日：2014-04-03

申请号：US13831409

申请日：2013-03-14

Applicant: BROADCOM CORPORATION

Inventor： Krishna Srikanth GOMADAM ,  Djordje TUJKOVIC

IPC: H04B7/04

CPC classification number: H04W72/048 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L25/03942 ,  H04W72/0446

Abstract: Systems and methods for establishing transmission format parameters between communication devices are provided. In some aspects, a method includes identifying, by a first base station, a first communication session with a first user equipment. A master set of transmission format parameters is shared between the first base station and the first user equipment. The method also includes assigning a first subset of the master set of transmission format parameters to the first communication session. The first subset is specifically assigned to the first communication session and specifies which of the master set of transmission format parameters is allocated for use in the first communication session. The method also includes transmitting an indicator of the first subset to the first user equipment.

Abstract translation: 提供了在通信设备之间建立传输格式参数的系统和方法。 在一些方面，一种方法包括由第一基站识别与第一用户设备的第一通信会话。 在第一基站和第一用户设备之间共享传输格式参数的主组。 该方法还包括将传输格式参数的主集合的第一子集分配给第一通信会话。 第一子集被专门分配给第一通信会话，并且指定哪个主集传输格式参数被分配用于第一通信会话。 该方法还包括将第一子集的指示符发送到第一用户设备。

公开(公告)号：US20130242784A1

公开(公告)日：2013-09-19

申请号：US13837862

申请日：2013-03-15

Applicant: BROADCOM CORPORATION

Inventor： Djordje TUJKOVIC ,  Louay Jalloul ,  Robert Lorenz

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L5/001 ,  H04L5/003 ,  H04L5/0091

Abstract: In a communications network with carrier aggregation (CA), embodiments enable the network to advertise to a supported wireless device not only whether or not aggregated component carriers allocated to the wireless are intra-band adjacent but farther whether or not the allocated component carriers are collocated. Embodiments further enable the wireless to advertise its CA capabilities including the support of adjacent collocated CA and/or non-adjacent collocated CA. Embodiments thus provide systems/methods for the exploitation of special conditions provided by adjacent collocated component carriers to reduce processing complexity and power consumption for certain types of wireless device transmitter/receiver architectures and to support intra-band adjacent CA for other types of UE transmitter/receiver architectures.

Abstract translation: 在具有载波聚合（CA）的通信网络中，实施例使得网络能够向被支持的无线设备通告，不仅分配给无线的聚合分量载波是否是带内相邻的，而且分配的分量载波是否并置 。 实施例还使得无线能够通告其CA能力，包括相邻并置CA和/或非相邻并置CA的支持。 因此，实施例提供了用于利用由相邻并置分量载波提供的特殊条件的系统/方法，以降低某些类型的无线设备发射机/接收机架构的处理复杂度和功耗，并支持用于其他类型的UE发射机/ 接收机架构。

公开(公告)号：US20150163792A1

公开(公告)日：2015-06-11

申请号：US14621352

申请日：2015-02-12

Applicant: BROADCOM CORPORATION

Inventor： Krishna Srikanth GOMADAM ,  Djordje TUJKOVIC

IPC: H04W72/04 ,  H04B7/04

CPC classification number: H04W72/048 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L25/03942 ,  H04W72/0446

Abstract: Systems and methods for establishing transmission format parameters between communication devices are provided. In some aspects, a method includes identifying, by a first base station, a first communication session with a first user equipment. A master set of transmission format parameters is shared between the first base station and the first user equipment. The method also includes assigning a first subset of the master set of transmission format parameters to the first communication session. The first subset is specifically assigned to the first communication session and specifies which of the master set of transmission format parameters is allocated for use in the first communication session. The method also includes transmitting an indicator of the first subset to the first user equipment.

Abstract translation: 提供了在通信设备之间建立传输格式参数的系统和方法。 在一些方面，一种方法包括由第一基站识别与第一用户设备的第一通信会话。 在第一基站和第一用户设备之间共享传输格式参数的主组。 该方法还包括将传输格式参数的主集合的第一子集分配给第一通信会话。 第一子集被具体分配给第一通信会话，并且指定哪个主集传输格式参数被分配用于第一通信会话。 该方法还包括将第一子集的指示符发送到第一用户设备。

公开(公告)号：US20140314166A1

公开(公告)日：2014-10-23

申请号：US14256712

申请日：2014-04-18

Applicant: Broadcom Corporation

Inventor： Krishna GOMADAM ,  Djordje TUJKOVIC

IPC: H04B7/04

CPC classification number: H04B7/0482 ,  H04B7/0452 ,  H04B7/0486 ,  H04B7/0639 ,  H04B7/0645

Abstract: Embodiments recognize that Multi-User Multiple Input Multiple Output (MU-MIMO) performance can be greatly enhanced if additional parameters are provided to the User Equipment (UE) during link adaptation and/or data demodulation. Recognizing the overhead that such signaling entails, embodiments provide MU-MIMO enhancement solutions that identify and signal only those parameters that can result in a large gain improvement when known at the UE. In an embodiment, the signaling rate of information can be adapted to channel and deployment conditions. In another embodiment, different parameters, which can vary according to different time scales, are signaled at different rates to the UE.

Abstract translation: 实施例认识到，如果在链路自适应和/或数据解调期间向用户设备（UE）提供附加参数，则可以极大地增强多用户多输入多输出（MU-MIMO）性能。 认识到这种信令所涉及的开销，实施例提供了MU-MIMO增强解决方案，其识别并且仅信令在UE处已知时可能导致大的增益改善的那些参数。 在一个实施例中，信息的信令速率可以适应于信道和部署条件。 在另一个实施例中，可以根据不同时间尺度而变化的不同参数以与UE不同的速率发信号通知。

公开(公告)号：US20140148119A1

公开(公告)日：2014-05-29

申请号：US13838620

申请日：2013-03-15

Applicant: BROADCOM CORPORATION

Inventor： Erik STAUFFER ,  Djordje TUJKOVIC ,  Hyunn Jong YANG ,  Kamlesh RATH ,  Shao-Cheng WANG ,  Robert LORENZ ,  Pavan NUGGEHALLI ,  Soumen CHAKRABORTY

IPC: H04W4/22

CPC classification number: H04W76/50 ,  H04W4/021 ,  H04W4/08 ,  H04W4/90 ,  H04W8/186 ,  H04W76/40

Abstract: Systems and methods for enabling a group of user equipments located in an emergency area to cooperatively transmit an emergency (SOS) message to a cellular network and to cooperatively receive an SOS message (or response) from the cellular network are provided. Embodiments further provide a scheme for enabling dedicated receivers, and/or user equipments that are attached to the cellular network to serve as relay stations for SOS messages, thereby extending the coverage of the cellular network to the emergency area.

Abstract translation: 提供了使得位于紧急区域中的一组用户设备能够协作地将一个紧急（SOS）消息发送到蜂窝网络并协同地从蜂窝网络接收SOS消息（或响应）的系统和方法。 实施例还提供了一种用于使附接到蜂窝网络的专用接收机和/或用户设备用作SOS消息的中继站的方案，从而将蜂窝网络的覆盖范围扩展到紧急区域。

公开(公告)号：US20130198582A1

公开(公告)日：2013-08-01

申请号：US13750280

申请日：2013-01-25

Applicant: Broadcom Corporation

Inventor： Erik STAUFFER ,  Bazhong SHEN ,  Djordje TUJKOVIC ,  Soumen CHAKRABORTY ,  Jing HUANG ,  Shiv Prakash SHET ,  Kamlesh RATH ,  David GARRETT ,  Andrew BLANKSBY

IPC: H03M13/29

CPC classification number: H03M13/2906 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/08

Abstract: A system and method is provided for encoding k input symbols into a longer stream of n output symbols for transmission over an erasure channel such that the original k input symbols can be recovered from a subset of the n output symbols without the need for any retransmission. A symbol is a generic data unit, consisting of one or more bits, that can be, for example, a packet. The system and method utilize a network of erasure codes, including block codes and parallel filter codes to achieve performance very close to the ideal MDS code with low encoding and decoding computational complexity for both small and large encoding block sizes. This network of erasure codes is referred to as a supercharged code. The supercharged code can be used to provide packet-level protection at, for example, the network, application, or transport layers of the Internet protocol suite.

Abstract translation: 提供了一种系统和方法，用于将k个输入符号编码为n个输出符号的较长流以在擦除信道上传输，使得可以从n个输出符号的子集中恢复原始k个输入符号，而不需要任何重传。 符号是由一个或多个比特组成的通用数据单元，其可以是例如分组。 该系统和方法利用擦除代码网络，包括块代码和并行滤波器代码，以实现非常接近理想MDS码的性能，对于小型和大型编码块大小，具有低编码和解码计算复杂度。 这种擦除代码网络被称为增值代码。 增值代码可用于在例如因特网协议组的网络，应用或传输层提供分组级保护。

公开(公告)号：US20150011238A1

公开(公告)日：2015-01-08

申请号：US14323513

申请日：2014-07-03

Applicant: Broadcom Corporation

Inventor： Djordje TUJKOVIC

IPC: H04W4/02

CPC classification number: H04W4/029

Abstract: Systems and methods for enabling accurate unilateral geolocation in a user equipment (UE) are provided. In one embodiment, the UE utilizes network attachments steps to determine an estimate of a propagation time difference between two base stations. The UE then estimates a transmit time difference between the two base stations using the estimate of the propagation time difference and Observed Time Difference of Arrival (OTDOA) assistance data received from the network. The UE computes its position based on the transmit time difference and OTDOA measurements. In another embodiment, the UE uses measurements from multiple receive antenna elements to measure an Angle Difference of Arrival (ADO) between multiple base stations and a reference base station, and computes its position based on the ADOA measurements.

Abstract translation: 提供了在用户设备（UE）中实现精确的单方向地理定位的系统和方法。 在一个实施例中，UE利用网络附件步骤来确定两个基站之间的传播时间差的估计。 然后，UE使用从网络接收的传播时间差和观测到达时间差（OTDOA）辅助数据的估计来估计两个基站之间的发射时间差。 UE根据传输时差和OTDOA测量计算其位置。 在另一个实施例中，UE使用来自多个接收天线元件的测量来测量多个基站与参考基站之间的到达角度差（ADO），并且基于ADOA测量来计算其位置。

公开(公告)号：US20140362941A1

公开(公告)日：2014-12-11

申请号：US14298358

申请日：2014-06-06

Applicant: Broadcom Corporation

Inventor： Krishna GOMADAM ,  Djordje TUJKOVIC

IPC: H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0647 ,  H04L25/03343 ,  H04L25/03898

Abstract: Embodiments provide approaches for sub-sampling a two-component precoder codebook to reduce the overhead associated with signaling the codebook in periodic Channel Stale Information (CSI) reports from a user equipment (UE) to a base station. In one embodiment, a first component of the codebook is sub-sampled to accommodate a payload capacity of a Physical Uplink Control Channel (PUCCH) CSI Report of Type 1. In another embodiment, both the first component and the second component of the codebook are sub-sampled to accommodate a maximum payload capacity associated with a PUCCH CSI report.

Abstract translation: 实施例提供了用于对双分量预编码器码本进行子采样以减少与用户设备（UE）到基站的周期性信道暂停信息（CSI）报告中的码本的信令相关联的开销的方法。 在一个实施例中，码本的第一分量被子采样以适应类型1的物理上行链路控制信道（PUCCH）CSI报告的有效载荷容量。在另一个实施例中，码本的第一分量和第二分量都是 子采样以适应与PUCCH CSI报告相关联的最大有效载荷容量。

公开(公告)号：US20140321390A1

公开(公告)日：2014-10-30

申请号：US14324798

申请日：2014-07-07

Applicant: Broadcom Corporation

Inventor： Sriram MUDULODU ,  Djordje TUJKOVIC ,  Arogyaswami PAULRAJ

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04W8/30

Abstract: A method and apparatus of selecting a number of uplink sounding sub-carriers are disclosed. One method includes estimating an uplink channel of between a base station and a subscriber. A time domain channel response is determined from the estimated uplink channel. A sub-carrier distribution of uplink sounding sub-carriers is selected based on characteristics of the time domain channel response, wherein the distribution defines a spacing of pilot sub-carriers within the uplink sounding symbol. The subscriber transmits uplink sounding symbols having the selected sub-carrier distribution.

Abstract translation: 公开了一种选择多个上行探测子载波的方法和装置。 一种方法包括估计基站和用户之间的上行链路信道。 从估计的上行链路信道确定时域信道响应。 基于时域信道响应的特性来选择上行链路探测子载波的子载波分布，其中分布定义了上行探测符号内的导频子载波的间隔。 用户发送具有所选择的子载波分布的上行探测符号。

公开(公告)号：US20140153510A1

公开(公告)日：2014-06-05

申请号：US14093093

申请日：2013-11-29

Applicant: Broadcom Corporation

Inventor： Krishna Srikanth GOMADAM ,  Djordje TUJKOVIC

IPC: H04L5/00

CPC classification number: H04L5/0073 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0634 ,  H04B7/0639

Abstract: Embodiments provide systems and methods for interference management in wireless multi-access communication networks, and more particularly systems and methods to enable reduction and/or suppression of interference. Embodiments for interference reduction include, without limitation, systems and methods to enable interference alignment, interference avoidance, and/or joint transmission to a user equipment (UE). Embodiments for enabling suppression of interference include, without limitation, systems and methods for feedback (from a UE to a network) or feedforward (from the network to the UE) signaling to enable interference estimation at the network/UE.

Abstract translation: 实施例提供了用于无线多址通信网络中的干扰管理的系统和方法，更具体地，涉及能够减少和/或抑制干扰的系统和方法。 用于干扰减轻的实施例包括但不限于能够对用户设备（UE）实现干扰对准，干扰避免和/或联合传输的系统和方法。 能够抑制干扰的实施例包括但不限于用于反馈（从UE到网络）或前馈（从网络到UE）的信令的系统和方法，以使得能够在网络/ UE处进行干扰估计。