公开(公告)号：US20080192847A1

公开(公告)日：2008-08-14

申请号：US12023054

申请日：2008-01-31

申请人： Brian K. Classon ,  Kevin L. Baum ,  Amitava Ghosh ,  Robert T. Love ,  Vijay Nangia ,  Rapeepat Ratasuk ,  Weimin Xiao

发明人： Brian K. Classon ,  Kevin L. Baum ,  Amitava Ghosh ,  Robert T. Love ,  Vijay Nangia ,  Rapeepat Ratasuk ,  Weimin Xiao

IPC分类号： H04K1/10

CPC分类号： H04L5/0007 ,  H04L5/0032 ,  H04L5/0039 ,  H04L5/0044 ,  H04L27/2601 ,  H04W72/1205

摘要： A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.

摘要翻译： 提供了在同一频道中调度分布式虚拟资源块（DVRB）和本地化虚拟资源块（LVRB）的通信，从而在最小化上行链路反馈开销的同时获得频率选择性调度的优点。 在本发明的一个实施例中，通信系统向给定LVRB的每个用户设备（UE）分配多个下行链路物理资源块（PRB）的一个或多个下行链路物理资源块（PRB），以产生至少一个保留的PRB和多个非 并且为给定DVRB的UE分配多个非保留PRB的每个PRB的一部分。 在本发明的另一个实施例中，通信系统将为局部传输预先预留的PRB分配给被调度用于LVRB的UE，并且为给定DVRB的每个UE分配预先分配的传输的多个PRB的一部分。

公开(公告)号：US20070258540A1

公开(公告)日：2007-11-08

申请号：US11692400

申请日：2007-03-28

申请人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

发明人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

IPC分类号： H04L27/28

CPC分类号： H04L1/1861 ,  H04B1/707 ,  H04J11/005 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0053 ,  H04L5/0091

摘要： A communication system provides downlink acknowledgments corresponding to uplink transmission using hybrid automatic repeat request to multiple users in an Orthogonal Frequency Division Multiplexing communication system, wherein a frequency bandwidth comprises multiple frequency sub-carriers, by spreading each acknowledgment of multiple acknowledgments with a selected spreading sequence of multiple spreading sequences to produce multiple spread acknowledgments, wherein each acknowledgment is intended for a different user of the multiple users, and distributing the multiple spread acknowledgments across the multiple frequency sub-carriers.

摘要翻译： 通信系统使用混合自动重复请求向正交频分复用通信系统中的多个用户提供与上行链路传输相对应的下行链路确认，其中频率带宽包括多个频率子载波，通过用选定的扩展序列扩展多个确认的每个确认 多个扩展序列以产生多个扩展确认，其中每个确认旨在用于多个用户的不同用户，并且在多个频率子载波之间分配多个扩展确认。

公开(公告)号：US20070165731A1

公开(公告)日：2007-07-19

申请号：US11623373

申请日：2007-01-16

申请人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Brian K. Classon ,  Kevin L. Baum ,  Robert T. Love

发明人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Brian K. Classon ,  Kevin L. Baum ,  Robert T. Love

IPC分类号： H04K1/10

CPC分类号： H04L5/0046 ,  H04B7/2615 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0042 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0094 ,  H04W16/10

摘要： Various embodiments are described which can serve to mitigate interference between the control channel signaling of adjacent sectors/cells. Potentially, these techniques may have the benefit of reducing the system resource drain caused by control channels, particularly control channels in high frequency-reuse, OFDMA systems. A transmitting device (101) transmits primary control channel information to a plurality of user devices (102). The primary control channel information includes an indication that a first OFDMA resource region (e.g., 320 or 330) is assigned to at least one user device of the plurality of user devices. The transmitting device correspondingly transmits secondary control channel information to the at least one user device using the first OFDMA resource region.

摘要翻译： 描述了可以用于减轻相邻扇区/小区的控制信道信令之间的干扰的各种实施例。 潜在地，这些技术可能有利于减少由控制信道，特别是高频率重用的OFDMA系统中的控制信道引起的系统资源消耗。 发送装置（101）向多个用户装置（102）发送主控制信道信息。 主控制信道信息包括第一OFDMA资源区域（例如320或330）被分配给多个用户设备中的至少一个用户设备的指示。 所述发送设备使用所述第一OFDMA资源区域将所述辅助控制信道信息相应地发送到所述至少一个用户设备。

公开(公告)号：US20060099985A1

公开(公告)日：2006-05-11

申请号：US10984162

申请日：2004-11-09

申请人： Nick Whinnett ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Weimin Xiao

发明人： Nick Whinnett ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Weimin Xiao

IPC分类号： H04Q7/20

CPC分类号： H04W52/60 ,  H04W52/282

摘要： A base station (101) of a cellular communication system (100) comprises a receiver (105) and a channel quality processor (111) which receive channel quality indications from a communication unit (103). The base station (101) further comprises a transmitter (107) for transmitting signals to the communication unit (103). A first power control processor (115) controls the transmit power in response to a first power control mode of operation and a second power control processor (117) controls the transmit power in response to the second power control mode of operation. A rate processor (113) determines a rate of change indication for the channel quality indications and a selector (119) selects between the first power control mode and the second power control mode in response to the rate of change indication. The power control mode of operation may be modified to suit the current channel variations of the communication channel. The invention may be applicable to an HSDPA service in a UMTS cellular communication system.

摘要翻译： 蜂窝通信系统（100）的基站（101）包括从通信单元（103）接收信道质量指示的接收机（105）和信道质量处理器（111）。 基站（101）还包括用于向通信单元（103）发送信号的发射机（107）。 第一功率控制处理器（115）响应于第一功率控制操作模式来控制发射功率，并且第二功率控制处理器（117）响应于第二功率控制操作模式来控制发射功率。 速率处理器（113）确定信道质量指示的变化率指示，并且选择器（119）响应于变化率指示在第一功率控制模式和第二功率控制模式之间进行选择。 可以修改功率控制操作模式以适应通信信道的当前信道变化。 本发明可以应用于UMTS蜂窝通信系统中的HSDPA服务。

公开(公告)号：US20060056350A1

公开(公告)日：2006-03-16

申请号：US11193163

申请日：2005-07-29

申请人： Robert Love ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Nicholas Whinnett

发明人： Robert Love ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Nicholas Whinnett

IPC分类号： H04Q7/00

CPC分类号： H04W72/0406 ,  H04W36/18 ,  H04W84/042 ,  H04W88/08

摘要： A cellular communication system (100) comprises a first base station (103) which schedules resource for a user equipment (101). When receiving a resource allocation message, the user equipment (101) transmits a first message comprising a transmit indication to a plurality of base stations (103-109) wherein the transmit indication is indicative of a subsequent transmission of a second message. The user equipment (101) then proceeds to determine a transmit format for the second message; and to transmit the second message to the plurality of base stations (103-109) using the transmit format. When receiving the transmit indication, the plurality of base stations (103-109) proceed to configure their receivers to receive the second message. The first message may be transmitted in a control channel and the second message may be transmitted in a user data channel. The invention is particularly applicable to a High Speed Uplink Packet Access HSUPA service in a UMTS cellular communication system and may facilitate soft handover.

摘要翻译： 蜂窝通信系统（100）包括对用户设备（101）调度资源的第一基站（103）。 当接收到资源分配消息时，用户设备（101）向多个基站（103-109）发送包括发送指示的第一消息，其中发送指示指示第二消息的后续发送。 用户设备（101）然后继续确定第二消息的发送格式; 并且使用发送格式将所述第二消息发送到所述多个基站（103-109）。 当接收到发送指示时，多个基站（103-109）继续配置其接收机以接收第二消息。 可以在控制信道中发送第一消息，并且可以在用户数据信道中发送第二消息。 本发明特别适用于UMTS蜂窝通信系统中的高速上行链路分组接入HSUPA业务，并且可以促进软切换。

公开(公告)号：US08989112B2

公开(公告)日：2015-03-24

申请号：US13457809

申请日：2012-04-27

申请人： Amitava Ghosh ,  Rapeepat Ratasuk

发明人： Amitava Ghosh ,  Rapeepat Ratasuk

IPC分类号： H04W24/00 ,  H04W72/00 ,  H04W24/10

CPC分类号： H04W72/00 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0091 ,  H04W24/10

摘要： A first BS transmits a first set of aggregated carriers including a PCC having a first carrier frequency and an SCC having a second carrier frequency. Contemporaneously, a second BS transmits a second set of aggregated carriers including a PCC having the second carrier frequency and an SCC having the first carrier frequency. In one aspect, the first BS transmits on the SCC a subframe having a number of selected symbols of the subframe at a lower power than other symbols of the subframe, the selected symbols aligning at least in part with a number of symbols of a control region of a subframe transmitted by the second BS on the PCC having the second carrier frequency. In another aspect, a UE attached to the second BS receives at least control information on the PCC of the first BS and receives data on the PCC of the second BS.

摘要翻译： 第一BS发送包括具有第一载波频率的PCC和具有第二载波频率的SCC的第一组聚合载波。 同时，第二BS发送包括具有第二载波频率的PCC和具有第一载波频率的SCC的第二聚合载波集合。 在一个方面，第一BS在SCC上以比子帧的其他符号更低的功率在SCC上发送具有子帧的选定符号数目的子帧，所选择的符号至少部分地对应于控制区域的符号数目 由第二BS在具有第二载波频率的PCC上发送的子帧。 在另一方面，附接到第二BS的UE至少接收关于第一BS的PCC的控制信息，并且在第二BS的PCC上接收数据。

公开(公告)号：US20130286952A1

公开(公告)日：2013-10-31

申请号：US13457809

申请日：2012-04-27

申请人： Amitava Ghosh ,  Rapeepat Ratasuk

发明人： Amitava Ghosh ,  Rapeepat Ratasuk

IPC分类号： H04W72/04

CPC分类号： H04W72/00 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0091 ,  H04W24/10

摘要： A first BS transmits a first set of aggregated carriers including a PCC having a first carrier frequency and an SCC having a second carrier frequency. Contemporaneously, a second BS transmits a second set of aggregated carriers including a PCC having the second carrier frequency and an SCC having the first carrier frequency. In one aspect, the first BS transmits on the SCC a subframe having a number of selected symbols of the subframe at a lower power than other symbols of the subframe, the selected symbols aligning at least in part with a number of symbols of a control region of a subframe transmitted by the second BS on the PCC having the second carrier frequency. In another aspect, a UE attached to the second BS receives at least control information on the PCC of the first BS and receives data on the PCC of the second BS.

摘要翻译： 第一BS发送包括具有第一载波频率的PCC和具有第二载波频率的SCC的第一组聚合载波。 同时，第二BS发送包括具有第二载波频率的PCC和具有第一载波频率的SCC的第二聚合载波集合。 在一个方面，第一BS在SCC上以比子帧的其他符号更低的功率在SCC上发送具有子帧的选定符号数目的子帧，所选择的符号至少部分地对应于控制区域的符号数目 由第二BS在具有第二载波频率的PCC上发送的子帧。 在另一方面，附接到第二BS的UE至少接收关于第一BS的PCC的控制信息，并且在第二BS的PCC上接收数据。

公开(公告)号：US20120069764A1

公开(公告)日：2012-03-22

申请号：US13308587

申请日：2011-12-01

申请人： Brian K. Classon ,  Kevin L. Baum ,  Amitava Ghosh ,  Robert T. Love ,  Vijay Nangia ,  Rapeepat Ratasuk ,  Weimin Xiao

发明人： Brian K. Classon ,  Kevin L. Baum ,  Amitava Ghosh ,  Robert T. Love ,  Vijay Nangia ,  Rapeepat Ratasuk ,  Weimin Xiao

IPC分类号： H04W72/04 ,  H04L12/26 ,  H04W24/00 ,  H04W74/04

CPC分类号： H04L5/0007 ,  H04L5/0032 ,  H04L5/0039 ,  H04L5/0044 ,  H04L27/2601 ,  H04W72/1205

摘要： A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.

摘要翻译： 提供了在同一频道中调度分布式虚拟资源块（DVRB）和本地化虚拟资源块（LVRB）的通信，从而在最小化上行链路反馈开销的同时获得频率选择性调度的优点。 在本发明的一个实施例中，通信系统向给定LVRB的每个用户设备（UE）分配多个下行链路物理资源块（PRB）的一个或多个下行链路物理资源块（PRB），以产生至少一个保留的PRB和多个非 并且为给定DVRB的UE分配多个非保留PRB的每个PRB的一部分。 在本发明的另一个实施例中，通信系统将为局部传输预先预留的PRB分配给被调度用于LVRB的UE，并且为给定DVRB的每个UE分配预先分配的传输的多个PRB的一部分。

公开(公告)号：US08054894B2

公开(公告)日：2011-11-08

申请号：US11552716

申请日：2006-10-25

申请人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk

发明人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L5/0044 ,  H04L1/0026 ,  H04L1/0036 ,  H04L5/0007 ,  H04L5/006

摘要： In an Orthogonal Frequency Division Multiplexing communication system, a user equipment reports channel quality information that is sufficient to construct a fading profile of a frequency bandwidth and that does not consuming the overhead resulting from the reporting of CQI for every sub-band of the frequency bandwidth. In the communication system, the frequency bandwidth may be represented by multiple sub-band levels, wherein each sub-band level comprises a division of the frequency bandwidth into a number of sub-bands different from the number of sub-bands of the other sub-band levels. The user equipment measures a channel quality associated with each sub-band of a sub-band level of the multiple sub-band levels, selects a sub-band of the sub-band level based on the measured channel qualities, and reports channel quality information associated with the selected sub-band to a radio access network.

摘要翻译： 在正交频分复用通信系统中，用户设备报告信道质量信息，该信道质量信息足以构建频带宽度的衰落分布，并且不消耗由针对频带宽度的每个子带报告CQI所引起的开销 。 在通信系统中，频率带宽可以由多个子带电平表示，其中每个子带电平包括频带宽度划分成与另一个子带的子带数不同的多个子带 带级。 用户设备测量与多个子带级别的子带级别的每个子带相关联的信道质量，基于所测量的信道质量来选择子带级的子带，并且报告信道质量信息 与所选择的子带相关联到无线电接入网络。

公开(公告)号：US07738907B2

公开(公告)日：2010-06-15

申请号：US11676357

申请日：2007-02-19

申请人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk

发明人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk

IPC分类号： H04B1/00 ,  H04B17/00 ,  H04B7/00 ,  H04Q11/12

CPC分类号： H04W52/146 ,  H04W52/265

摘要： A communication system optimizes cell edge performance and spectral efficiency by determining an adaptive power control parameter based on system performance metrics measured by a serving Node B and further measured by, and reported to the serving Node B by, neighboring Node B's. The adaptive power control parameter is then used to determine an uplink transmit power of a user equipment (UE) served by the serving Node B. The uplink transmit power may be determined by the Node B and then conveyed to the UE, or the Node B may broadcast the adaptive power control parameter to the UE and the UE may self-determine the uplink transmit power. In addition, as a frequency reuse factor of one has been proposed for such communication systems, interference levels may be even further improved by employment of an intra-site interference cancellation scheme in the sectors serviced by the Node B.

摘要翻译： 通信系统通过基于由服务节点B测量的系统性能指标来确定自适应功率控制参数来优化小区边缘性能和频谱效率，并由相邻节点B进一步测量并向服务节点B报告给服务节点B. 然后，使用自适应功率控制参数来确定由服务节点B服务的用户设备（UE）的上行链路发射功率。上行链路发射功率可以由节点B确定，然后传送给UE，或者节点B 可以向UE广播自适应功率控制参数，并且UE可以自行确定上行链路发射功率。 另外，由于已经为这种通信系统提出了一种频率复用因子，所以通过在由节点B服务的扇区中采用站内干扰消除方案，甚至可以进一步改善干扰水平。