公开(公告)号：US20060189316A1

公开(公告)日：2006-08-24

申请号：US11336663

申请日：2006-01-19

申请人： Richard Kobylinski ,  Milap Majmundar

发明人： Richard Kobylinski ,  Milap Majmundar

IPC分类号： H04Q7/20

CPC分类号： H04W36/26 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0083

摘要： A system and method for improved mobile assisted handoff in a digital cellular communication system that gives the mobile station the ability to synchronize to candidate base station transmissions in order to read the transmitted digital voice color code (DVCC) of the candidate station. This process is performed during the idle period between two designated time slots in a TDMA frame. The invention is an enhancement to the existing mobile assisted handoff procedures described in the existing IS-136 standard. The present invention improves on the IS-136 standard's use of received signal strength measurements in that it allows the mobile station to acquire and report information regarding the digital verification color code (DVCC) of the candidate base station channels. Since the DVCC uniquely identifies the cell site to which a channel belongs, it is used to distinguish the candidate base station channel from its co-channel interferers, allowing the network to make a more informed handoff decision.

公开(公告)号：US20080112515A1

公开(公告)日：2008-05-15

申请号：US12014348

申请日：2008-01-15

申请人： Richard Kobylinski ,  David Wolter

发明人： Richard Kobylinski ,  David Wolter

IPC分类号： H04L27/06

CPC分类号： H04L25/0208 ,  H04B1/1081 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/03 ,  H04L25/03178 ,  H04L25/03197 ,  H04L25/03203 ,  H04L25/03331 ,  H04L27/2017 ,  H04L2025/03407

摘要： Systems and methods for performing joint demodulation using a Viterbi equalizer having an adaptive total number of states are disclosed. Generally, a method includes joint demodulating a desired signal and none or more interfering signals with a Viterbi equalizer having an adaptive total number of states based on channel impulse response (CIR) coefficients associated with a desired signal ant the one or more interfering signals.

摘要翻译： 公开了使用具有自适应总数状态的维特比均衡器执行联合解调的​​系统和方法。 通常，一种方法包括基于与所述一个或多个干扰信号的期望信号相关联的信道脉冲响应（CIR）系数，将具有自适应总数状态的维特比均衡器的所有信号和没有或更多个干扰信号联合解调。

公开(公告)号：US20060171489A1

公开(公告)日：2006-08-03

申请号：US11049370

申请日：2005-02-02

申请人： Arunabha Ghosh ,  Richard Kobylinski

发明人： Arunabha Ghosh ,  Richard Kobylinski

IPC分类号： H03D1/00

CPC分类号： H04L25/03318 ,  H03M13/23 ,  H03M13/4107 ,  H03M13/6362 ,  H04L25/03197 ,  H04L2025/03401

摘要： First and second partially collapsed metric values are determined for each bit in a symbol transition. Each first partially collapsed metric value is a cumulative metric of starting in a first state and ending in a second state in L transitions with the respective bit in the symbol transition being a first value. Each second partially collapsed metric value is a cumulative metric of starting in the first state and ending in the second state in L transitions with the respective bit in the symbol transition being a second value, the second value differing from the first value. For each bit in the symbol transition, a relative likelihood value is determined based on its respective first and second partially collapsed metric values. A symbol is decoded based on a hard decision performed using the relative likelihood value for each bit in the symbol transition.

摘要翻译： 为符号转换中的每个位确定第一和第二部分折叠度量值。 每个第一部分折叠的度量值是在第一状态中开始并在L个转换中以第二状态结束的累积度量，其中符号转换中的相应位是第一值。 每个第二部分折叠度量值是在第一状态中开始并在L个转换中以第二状态结束的累积度量，其中符号转换中的相应位是第二值，第二值与第一值不同。 对于符号转换中的每个位，基于其相应的第一和第二部分折叠度量值来确定相对似然值。 基于使用符号转换中的每个位的相对似然值执行的硬判决来对符号进行解码。