公开(公告)号：US08254279B2

公开(公告)日：2012-08-28

申请号：US12107013

申请日：2008-04-21

申请人： Charles E. Wheatley, III ,  Avneesh Agrawal ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Lu Yuan ,  Mehraban Iraninejad

发明人： Charles E. Wheatley, III ,  Avneesh Agrawal ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Lu Yuan ,  Mehraban Iraninejad

IPC分类号： H04J3/14 ,  H04W4/00

CPC分类号： H04B17/382 ,  H04B17/345

摘要： Techniques for estimating thermal noise and rise-over-thermal (RoT) in a communication system are described. In an aspect, thermal noise in a sideband may be measured and used to estimate thermal noise in a signal band. In one design, received power in the sideband may be measured, e.g., by computing total power of FFT transform coefficients within the sideband. Thermal noise may be estimated based on (e.g., by filtering) the measured received power in the sideband. Received power in the signal band may also be measured. Total received power may be estimated based on (e.g., by filtering) the measured received power in the signal band. RoT may then be estimated based on the estimated thermal noise and the estimated total received power. The estimated RoT may be used to estimate an available load for a cell, which may be used to admit and/or schedule users in the cell.

摘要翻译： 描述了用于估计通信系统中的热噪声和上升热（RoT）的技术。 在一方面，边带中的热噪声可以被测量并用于估计信号频带中的热噪声。 在一种设计中，边带中的接收功率可以例如通过计算边带内的FFT变换系数的总功率来测量。 可以基于（例如，通过滤波）边带中的测量的接收功率来估计热噪声。 也可以测量信号频带中的接收功率。 可以基于（例如，通过滤波）在信号频带中测量的接收功率来估计总接收功率。 然后可以基于估计的热噪声和估计的总接收功率来估计RoT。 估计的RoT可以用于估计小区的可用负载，其可以用于接纳和/或调度小区中的用户。

公开(公告)号：US20080267086A1

公开(公告)日：2008-10-30

申请号：US12107013

申请日：2008-04-21

申请人： Charles E. Wheatley ,  Avneesh Agrawal ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Lu Yuan ,  Mehraban Iraninejad

发明人： Charles E. Wheatley ,  Avneesh Agrawal ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Lu Yuan ,  Mehraban Iraninejad

IPC分类号： H04L12/26

CPC分类号： H04B17/382 ,  H04B17/345

摘要： Techniques for estimating thermal noise and rise-over-thermal (RoT) in a communication system are described. In an aspect, thermal noise in a sideband may be measured and used to estimate thermal noise in a signal band. In one design, received power in the sideband may be measured, e.g., by computing total power of FFT transform coefficients within the sideband. Thermal noise may be estimated based on (e.g., by filtering) the measured received power in the sideband. Received power in the signal band may also be measured. Total received power may be estimated based on (e.g., by filtering) the measured received power in the signal band. RoT may then be estimated based on the estimated thermal noise and the estimated total received power. The estimated RoT may be used to estimate an available load for a cell, which may be used to admit and/or schedule users in the cell.

摘要翻译： 描述了用于估计通信系统中的热噪声和上升热（RoT）的技术。 在一方面，边带中的热噪声可以被测量并用于估计信号频带中的热噪声。 在一种设计中，边带中的接收功率可以例如通过计算边带内的FFT变换系数的总功率来测量。 可以基于（例如，通过滤波）边带中的测量的接收功率来估计热噪声。 也可以测量信号频带中的接收功率。 可以基于（例如，通过滤波）在信号频带中测量的接收功率来估计总接收功率。 然后可以基于估计的热噪声和估计的总接收功率来估计RoT。 估计的RoT可以用于估计小区的可用负载，其可以用于接纳和/或调度小区中的用户。

公开(公告)号：US08477734B2

公开(公告)日：2013-07-02

申请号：US12410154

申请日：2009-03-24

申请人： Sharad Deepak Sambhwani ,  Wei Zeng ,  Yibo Jiang ,  Lu Yuan ,  Mehmet Yavuz ,  Pavan Kumar Vitthaladevuni ,  Bibhu P. Mohanty ,  Danlu Zhang ,  Aziz Gholmieh ,  Arjun Bharadwaj

发明人： Sharad Deepak Sambhwani ,  Wei Zeng ,  Yibo Jiang ,  Lu Yuan ,  Mehmet Yavuz ,  Pavan Kumar Vitthaladevuni ,  Bibhu P. Mohanty ,  Danlu Zhang ,  Aziz Gholmieh ,  Arjun Bharadwaj

IPC分类号： H04W4/00

CPC分类号： H04L1/0026 ,  H04L1/1671

摘要： Techniques for reporting acknowledgement (ACK) information and channel quality indication (CQI) information in a wireless communication system are described. A user equipment (UE) may be able to receive data from up to two cells with dual-cell operation. The UE may determine CQI information for a first cell, determine CQI information for a second cell, and send the CQI information for both cells on a feedback channel with a single channelization code. The UE may process a control channel from each cell and, if control information is received from the cell, may further process a data channel from the cell to receive data sent to the UE. The UE may determine ACK information for each cell based on processing results for the data and control channels from that cell. The UE may send the ACK information for both cells on the feedback channel with the single channelization code.

摘要翻译： 描述了在无线通信系统中报告确认（ACK）信息和信道质量指示（CQI）信息的技术。 用户设备（UE）可以能够以双小区操作从多达两个小区接收数据。 UE可以确定第一小区的CQI信息，确定第二小区的CQI信息，并且在具有单个信道化码的反馈信道上发送用于两个小区的CQI信息。 UE可以处理来自每个小区的控制信道，并且如果从小区接收到控制信息，则可以进一步处理来自小区的数据信道以接收发送给UE的数据。 UE可以基于来自该小区的数据和控制信道的处理结果来确定每个小区的ACK信息。 UE可以使用单个信道化码在反馈信道上发送两个小区的ACK信息。

公开(公告)号：US20090245212A1

公开(公告)日：2009-10-01

申请号：US12410154

申请日：2009-03-24

申请人： Sharad Deepak Sambhwani ,  Wei Zeng ,  Yibo Jiang ,  Lu Yuan ,  Mehmet Yavuz ,  Pavan Kumar Vitthaladevuni ,  Bibhu P. Mohanty ,  Danlu Zhang ,  Aziz Gholmieh ,  Arjun Bharadwaj

发明人： Sharad Deepak Sambhwani ,  Wei Zeng ,  Yibo Jiang ,  Lu Yuan ,  Mehmet Yavuz ,  Pavan Kumar Vitthaladevuni ,  Bibhu P. Mohanty ,  Danlu Zhang ,  Aziz Gholmieh ,  Arjun Bharadwaj

IPC分类号： H04J3/00 ,  H04W8/00

CPC分类号： H04L1/0026 ,  H04L1/1671

摘要： Techniques for reporting acknowledgement (ACK) information and channel quality indication (CQI) information in a wireless communication system are described. A user equipment (UE) may be able to receive data from up to two cells with dual-cell operation. The UE may determine CQI information for a first cell, determine CQI information for a second cell, and send the CQI information for both cells on a feedback channel with a single channelization code. The UE may process a control channel from each cell and, if control information is received from the cell, may further process a data channel from the cell to receive data sent to the UE. The UE may determine ACK information for each cell based on processing results for the data and control channels from that cell. The UE may send the ACK information for both cells on the feedback channel with the single channelization code.

摘要翻译： 描述了在无线通信系统中报告确认（ACK）信息和信道质量指示（CQI）信息的技术。 用户设备（UE）可以能够以双小区操作从多达两个小区接收数据。 UE可以确定第一小区的CQI信息，确定第二小区的CQI信息，并且在具有单个信道化码的反馈信道上发送用于两个小区的CQI信息。 UE可以处理来自每个小区的控制信道，并且如果从小区接收到控制信息，则可以进一步处理来自小区的数据信道以接收发送给UE的数据。 基于来自该小区的数据和控制信道的处理结果，UE可以确定每个小区的ACK信息。 UE可以使用单个信道化码在反馈信道上发送两个小区的ACK信息。

公开(公告)号：US20090207746A1

公开(公告)日：2009-08-20

申请号：US12242569

申请日：2008-09-30

申请人： Lu Yuan ,  Danlu Zhang ,  Mehraban Iraninejad ,  Sharad Sambhwani

发明人： Lu Yuan ,  Danlu Zhang ,  Mehraban Iraninejad ,  Sharad Sambhwani

IPC分类号： H04L12/26

CPC分类号： H04B17/382 ,  H04B17/345

摘要： Techniques for estimating thermal noise and rise-over-thermal (RoT) in a communication system are described. Thermal noise in a sideband may be measured and used as an estimate of thermal noise in a signal band. In one design, samples containing a desired signal centered at DC or a frequency higher than DC may be partitioned into blocks of K samples. Each block of K samples may be transformed with an FFT to obtain a corresponding block of K transform coefficients for K frequency bins. The power of transform coefficients for frequency bins in the sideband may be computed. Thermal noise may be estimated based on power values for the frequency bins in the sideband. Power values for frequency bins in the signal band may also be obtained and used to estimate total received power. RoT may then be estimated based on the estimated thermal noise and the estimated total received power.

摘要翻译： 描述了用于估计通信系统中的热噪声和上升热（RoT）的技术。 可以测量边带中的热噪声并将其用作信号频带中的热噪声的估计。 在一种设计中，包含以DC或高于DC的频率为中心的期望信号的样本可被划分为K个样本的块。 可以用FFT对K个采样的每个块进行变换，以获得用于K个频率仓的K个变换系数的相应块。 可以计算边带中频率仓的变换系数的幂。 可以基于边带中的频率仓的功率值来估计热噪声。 也可以获得信号频带中的频率仓的功率值并用于估计总接收功率。 然后可以基于估计的热噪声和估计的总接收功率来估计RoT。

公开(公告)号：US08264975B2

公开(公告)日：2012-09-11

申请号：US12242569

申请日：2008-09-30

申请人： Lu Yuan ,  Danlu Zhang ,  Mehraban Iraninejad ,  Sharad Sambhwani

发明人： Lu Yuan ,  Danlu Zhang ,  Mehraban Iraninejad ,  Sharad Sambhwani

IPC分类号： H04L12/26 ,  H04J11/00

CPC分类号： H04B17/382 ,  H04B17/345

摘要： Techniques for estimating thermal noise and rise-over-thermal (RoT) in a communication system are described. Thermal noise in a sideband may be measured and used as an estimate of thermal noise in a signal band. In one design, samples containing a desired signal centered at DC or a frequency higher than DC may be partitioned into blocks of K samples. Each block of K samples may be transformed with an FFT to obtain a corresponding block of K transform coefficients for K frequency bins. The power of transform coefficients for frequency bins in the sideband may be computed. Thermal noise may be estimated based on power values for the frequency bins in the sideband. Power values for frequency bins in the signal band may also be obtained and used to estimate total received power. RoT may then be estimated based on the estimated thermal noise and the estimated total received power.

摘要翻译： 描述了用于估计通信系统中的热噪声和上升热（RoT）的技术。 可以测量边带中的热噪声并将其用作信号频带中的热噪声的估计。 在一种设计中，包含以DC或高于DC的频率为中心的期望信号的样本可被划分为K个样本的块。 可以用FFT对K个采样的每个块进行变换，以获得用于K个频率仓的K个变换系数的相应块。 可以计算边带中频率仓的变换系数的幂。 可以基于边带中的频率仓的功率值来估计热噪声。 也可以获得信号频带中的频率仓的功率值并用于估计总接收功率。 然后可以基于估计的热噪声和估计的总接收功率来估计RoT。

公开(公告)号：US09001777B2

公开(公告)日：2015-04-07

申请号：US12724350

申请日：2010-03-15

申请人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Aziz Gholmieh ,  Rohit Kapoor ,  Jilei Hou ,  Ozcan Ozturk ,  Arjun Bharadwaj

发明人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Aziz Gholmieh ,  Rohit Kapoor ,  Jilei Hou ,  Ozcan Ozturk ,  Arjun Bharadwaj

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04W72/12

CPC分类号： H04L5/00 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0082 ,  H04L5/0087 ,  H04L5/0094 ,  H04W72/1252 ,  H04W72/1284

摘要： Systems and methods for communicating over multiple carriers are described herein. A predetermined event triggers the generation of scheduling information for two or more of the carriers. The predetermined event may comprise expiration of a timer set for at least one of the two or more carriers, storing data in a buffer having a higher transmission priority than data previously stored in the buffer, or changing at least one of the two or more carriers from being served by a first cell to being served by a second cell.

摘要翻译： 这里描述了用于在多个载体上进行通信的系统和方法。 一个预定事件触发了两个或多个载波的调度信息的生成。 预定事件可以包括针对两个或更多个载波中的至少一个的定时器集合的到期，将数据存储在具有比先前存储在缓冲器中的数据更高的发送优先级的缓冲器中，或者改变两个或更多个载波中的至少一个 由第一个小区服务，由第二个小区服务。

公开(公告)号：US08989140B2

公开(公告)日：2015-03-24

申请号：US13170083

申请日：2011-06-27

申请人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Weiyan Ge

发明人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Weiyan Ge

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04W76/02

CPC分类号： H04W36/0083 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0092 ,  H04W76/15

摘要： A method and apparatus for wireless communication may provide for mobility in a Multi-Point HSDPA network capable of downlink aggregation. Some aspects of the disclosure provide modified mobility events utilized for altering the Active Set for a UE. Here, the addition of a cell to the Active Set can coincide with making that cell a secondary serving cell. Further, the deletion of a secondary serving cell from the Active Set can coincide with switching off the Multi-Point HSDPA mode. Still further, a modified mobility event for an HSDPA serving cell change can be utilized to swap a primary serving cell and a secondary serving cell.

摘要翻译： 用于无线通信的方法和装置可以提供能够进行下行链路聚合的多点HSDPA网络中的移动性。 本公开的一些方面提供用于改变UE的活动集的修改的移动性事件。 这里，向活动集合添加小区可以使得将该小区成为辅助服务小区。 此外，从活动集中删除辅助服务小区可以与关闭多点HSDPA模式相一致。 此外，可以利用用于HSDPA服务小区改变的修改的移动性事件来交换主服务小区和辅助服务小区。

公开(公告)号：US08824307B2

公开(公告)日：2014-09-02

申请号：US13269721

申请日：2011-10-10

申请人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Pavan Kumar Vitthaladevuni

发明人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Pavan Kumar Vitthaladevuni

IPC分类号： H04W4/00 ,  H04W72/08 ,  H04W72/04

CPC分类号： H04W72/085 ,  H04W36/30 ,  H04W72/0413

摘要： A wireless communication system transmits in a High Speed Downlink Packet Access (HSDPA) by having a Radio Network Controller (RNC) assign portions of data to a first serving cell and a second serving cell for transmitting to a user equipment. The first serving cell transmits data on a first downlink carrier to the user equipment. The second serving cell, which is independent from the first serving cell, transmits data on a second downlink carrier to the user equipment. In an optional aspect, the RNC receives a measurement report from the user equipment on a first uplink carrier via at least one of the first serving cell and the second serving cell.

摘要翻译： 无线通信系统通过使无线网络控制器（RNC）将数据的部分分配给第一服务小区和第二服务小区来发送到高速下行链路分组接入（HSDPA），以发送给用户设备。 第一服务小区在第一下行链路载波上向用户设备发送数据。 独立于第一服务小区的第二服务小区在第二下行链路载波上向用户设备发送数据。 在可选方面，RNC经由第一服务小区和第二服务小区中的至少一个，在第一上行链路载波上从用户设备接收测量报告。

公开(公告)号：US20120163205A1

公开(公告)日：2012-06-28

申请号：US13170064

申请日：2011-06-27

申请人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Weiyan Ge

发明人： Danlu Zhang ,  Sharad Deepak Sambhwani ,  Rohit Kapoor ,  Jilei Hou ,  Weiyan Ge

IPC分类号： H04W28/02 ,  H04W72/10 ,  H04W72/04

CPC分类号： H04W72/1247 ,  H04L47/14 ,  H04L47/283 ,  H04W28/14 ,  H04W72/1252 ,  H04W72/1278 ,  H04W76/15 ,  H04W92/12

摘要： A base station (e.g., a Node B in a Multi-Point HSDPA network) calculates an amount of data to request from a network node (e.g., a radio network controller or RNC). As a part of the algorithm utilized, a length of a queue at the Node B for buffering the flow may be dynamically adjusted in an effort to optimize the trade-off between buffer underrun and skew. Further, a network node (e.g., the RNC) responds to Node B flow control requests. Here, the RNC may determine the amount of data to send to the Node B in response to the flow control message from the Node B, and may send the data to the Node B. In various aspects of the present disclosure involving a Multi-Point HSDPA system, the flow control algorithm at the RNC coordinates packet flow to the primary serving cell and the secondary serving cell for the UE.

摘要翻译： 基站（例如，多点HSDPA网络中的节点B）计算从网络节点（例如，无线电网络控制器或RNC）请求的数据量。 作为所使用的算法的一部分，可以动态地调整用于缓冲流的节点B处的队列的长度，以努力优化缓冲器欠载和偏移之间的权衡。 此外，网络节点（例如，RNC）响应于节点B流控制请求。 这里，RNC可以响应于来自节点B的流控制消息来确定发送给节点B的数据量，并且可以将数据发送到节点B.在涉及多点的本公开的各个方面 HSDPA系统中，RNC处的流控制算法协调到主服务小区和UE的辅助服务小区的分组流。