公开(公告)号：EP1137224A1

公开(公告)日：2001-09-26

申请号：EP00309086.7

申请日：2000-10-16

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Ahmed, Walid ,  Jiang, Hong ,  Kodialam, Muralidharan Sampath ,  Monogioudis, Pantelis ,  Rege, Kiran M.

IPC: H04L12/56

CPC classification number: H04L45/04 ,  H04W40/20 ,  H04W40/30 ,  H04W48/08 ,  H04W64/00 ,  H04W84/18

Abstract: In an ad-hoc mobile network, a geometry-based routing algorithm (GRA) is used to route traffic from a source node to a destination node. In the GRA, a source node maintains location information and routing information for all nodes in a local area and approximate location information for at least some nodes outside the local area. If the source node has to send a packet to a destination node outside their local area, then the source node uses the approximate location information of the destination node to identify which node in its local area is closer to the destination node than the source node. The source node then sends the packet to the identified local node for further routing.

Abstract translation: 在ad-hoc移动网络中，基于几何的路由算法（GRA）用于将流量从源节点路由到目标节点。 在GRA中，源节点维护本地区域中所有节点的位置信息和路由信息，以及本地区域外至少一些节点的近似位置信息。 如果源节点必须将分组发送到本地区域之外的目的地节点，则源节点使用目的地节点的近似位置信息来识别其本地区域中的哪个节点比源节点更接近目的地节点。 源节点然后将该分组发送到所标识的本地节点以用于进一步路由。

公开(公告)号：EP0899981A2

公开(公告)日：1999-03-03

申请号：EP98306550.9

申请日：1998-08-18

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Rege, Kiran M. ,  Kuo, Wen-Yi

IPC: H04Q7/38

CPC classification number: H04W36/18

Abstract: The present invention increases the success rate of soft handoffs by enhancing the ability of a mobile-telephone to receive a handoff direction message that identifies the traffic channel being assigned to enable a candidate base station to communicate with the mobile-telephone. Specifically, the aforementioned ability of the mobile-telephone is enhanced by using the candidate base station to transmit the handoff direction message on a communication channel belonging to the candidate base station and being listened to by the mobile-telephone. In situations where signals transmitted from active set base stations have a low signal-to-noise ratio at the mobile-telephone, signals transmitted from the candidate base station may have a higher signal-to-noise ratio at the mobile-telephone. In these situations, the transmission of the HD messages from the candidate base station increases the likelihood that a copy of the handoff direction message will be successfully received by the mobile-telephone, thereby enhancing the success rate of soft handoffs.

Abstract translation: 本发明通过增强移动电话接收越区切换指示消息的能力来增加软越区切换的成功率，该越区切换指示消息识别被分配以使候选基站能够与移动电话通信的业务信道。 具体地说，通过使用候选基站在属于候选基站并被移动电话收听的通信信道上发送越区切换指示消息，增强了移动电话的上述能力。 在从活动组基站发送的信号在移动电话处具有低信噪比的情况下，从候选基站发送的信号在移动电话处可能具有较高的信噪比。 在这些情况下，从候选基站发送HD消息增加了越区切换方向消息的副本将被移动电话成功接收的可能性，从而提高了软越区切换的成功率。

公开(公告)号：EP0802638A2

公开(公告)日：1997-10-22

申请号：EP97302216.3

申请日：1997-04-01

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Sanjiv, Nanda ,  Rege, Kiran M.

IPC: H04B7/005

CPC classification number: H04W52/12 ,  H04W52/20 ,  H04W52/26 ,  H04W52/267

Abstract: A facility is provided for more efficiently controlling transmitted power in a forward link of CDMA telecommunications system. This is done by offsetting a power reference level that adjusts the level of the transmitted power using an power offset selected as a function of a transmission rate specified for the transmission of a coded frame. The coded frame is then transmitted at a power level selected as function of the adjusted power reference level, rather than the unadjusted level. Such efficiently is particularly noticeable when there is transition from one frame transmission rate to another such rate and vice-versa.

Abstract translation: 一种设施提供了用于在CDMA电信系统中的前向链路更有效地控制反mitted功率，这是由偏置功率参考电平并bestimmt使用于功率反式mitted功率的电平偏移量选择为指定的传输速率的一个函数来完成 一个编码帧的传输。 的编码帧，然后反mitted在选择作为调整后的功率参考电平的函数，而不是未调整电平的功率电平。 搜索高效是特别显着。当存在从一个帧传输速率到另一个寻求速率，反之亦然过渡。

公开(公告)号：EP1128574A3

公开(公告)日：2003-12-10

申请号：EP01301434.5

申请日：2001-02-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Monogioudis, Pantelis ,  Rege, Kiran M. ,  Sampath, Ashwin

IPC: H04B7/005

CPC classification number: H04W52/12 ,  H04W52/125 ,  H04W52/20 ,  H04W52/225 ,  H04W52/226 ,  H04W52/24

Abstract: In a wireless communications system, a base station employs a bit error rate (BER) based Reverse Outer Loop Power Control (ROLPC) technique. The ROLPC technique uses either instantaneous or weakly filtered values of the BER for comparison with a BER target value for adjusting a target signal-to-noise ratio (SNR). The BER target value is varied as a function of a second order statistic (e.g. variance, standard deviation) of the received SNR. In another embodiment, a symbol error count based ROLPC technique uses adaptive SER targets. In particular, a base station uses a 2 nd order statistic, e.g., standard deviation (variance), to identify, or act as a signature of, a particular cellular (wireless) communications environment. The base station monitors the standard deviation of the symbol error count of a received signal (transmitted from a mobile station). The target signal-to-noise ratio (( E b / N 0 ) T ) of this received signal is adjusted as a function of the value of the standard deviation and the adjusted ( E b /N 0 ) T target is used to provide power control.

公开(公告)号：EP0802638A3

公开(公告)日：2003-04-09

申请号：EP97302216.3

申请日：1997-04-01

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Sanjiv, Nanda ,  Rege, Kiran M.

IPC: H04B7/005

CPC classification number: H04W52/12 ,  H04W52/20 ,  H04W52/26 ,  H04W52/267

Abstract: A facility is provided for more efficiently controlling transmitted power in a forward link of CDMA telecommunications system. This is done by offsetting a power reference level that adjusts the level of the transmitted power using an power offset selected as a function of a transmission rate specified for the transmission of a coded frame. The coded frame is then transmitted at a power level selected as function of the adjusted power reference level, rather than the unadjusted level. Such efficiently is particularly noticeable when there is transition from one frame transmission rate to another such rate and vice-versa.

公开(公告)号：EP1235379A1

公开(公告)日：2002-08-28

申请号：EP01307696.3

申请日：2001-09-11

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Monogioudis, Pantelis ,  Rege, Kiran M.

IPC: H04L1/20

CPC classification number: H04L1/20

Abstract: In a UMTS (universal mobile telecommunications system) based system, a wireless receiver implements "effective signal-to-noise ( E b / N o ) based BER estimation." In particular, the wireless receiver comprises a rake receiver, a processor and memory. The rake receiver processes a received signal and provides signal-to-noise ratio values for each slot of each received frame of the received signal. The processor converts these signal-to-noise ratio values for each received frame into an effective signal-to-noise ratio value for the received signal. The processor then uses the effective signal-to-noise ratio value as a pointer, or index, into a look-up table (stored in the memory) and retrieves a BER estimate therefrom.

Abstract translation: 在基于UMTS（通用移动通信系统）的系统中，无线接收机实现“基于有效信噪比（Eb / No）的BER估计”。 特别地，无线接收机包括耙式接收器，处理器和存储器。 耙式接收机处理接收到的信号，并为接收信号的每个接收帧的每个时隙提供信噪比值。 处理器将每个接收到的帧的这些信噪比值转换为接收信号的有效信噪比值。 然后，处理器将有效的信噪比值作为指针或索引，使用到查找表（存储在存储器中）并从中检索BER估计。

公开(公告)号：EP0899981B1

公开(公告)日：2002-05-08

申请号：EP98306550.9

申请日：1998-08-18

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Rege, Kiran M. ,  Kuo, Wen-Yi

IPC: H04Q7/38

CPC classification number: H04W36/18

公开(公告)号：EP1134940A1

公开(公告)日：2001-09-19

申请号：EP00309099.0

申请日：2000-10-16

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Ahmed, Walid ,  Jiang, Hong ,  Kodialam, Muralidharan Sampath ,  Monogioudis, Pantelis ,  Rege, Kiran M.

IPC: H04L12/56

CPC classification number: H04L45/02 ,  H04W8/22 ,  H04W8/24 ,  H04W40/20 ,  H04W40/248 ,  H04W40/30 ,  H04W48/08 ,  H04W64/00 ,  H04W84/18

Abstract: In an ad-hoc mobile network, a geometry-based routing protocol (GRP) is used to route traffic from a source node to a destination node. In the GRP, each node maintains a location list, which comprises location information for a number of nodes of the ad-hoc mobile network. Periodically, each node transmits to its direct neighbors (i.e., those nodes with which it has a point-to-point link) (a) its location, and (b) its location list. Each node that receives a location list from an adjacent node merges the received location list into its own location list such that location information for existing nodes, and/or newly identified nodes, is current.

Abstract translation: 在自组织移动网络中，基于几何的路由协议（GRP）用于将来自源节点的流量路由到目的地节点。 在GRP中，每个节点维护位置列表，该位置列表包括用于ad-hoc移动网络的多个节点的位置信息。 周期性地，每个节点向其直接邻居（即，具有点对点链路的那些节点）发送（a）其位置，以及（b）其位置列表。 从相邻节点接收位置列表的每个节点将接收到的位置列表合并到其自己的位置列表中，使得现有节点和/或新识别的节点的位置信息是当前的。

公开(公告)号：EP1134939A1

公开(公告)日：2001-09-19

申请号：EP00309051.1

申请日：2000-10-16

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Ahmed, Walid ,  Jiang, Hong ,  Kodialam, Muralidharam Sampath ,  Monogioudis, Pantelis ,  Rege, Kiran M.

IPC: H04L12/56

CPC classification number: H04L45/18 ,  H04L45/02 ,  H04L45/20 ,  H04L45/44 ,  H04W40/20 ,  H04W40/24 ,  H04W48/08 ,  H04W64/00 ,  H04W84/18

Abstract: In an ad-hoc mobile network, a geometry-based routing protocol (GRP) is used to route traffic from a source node to a destination node. In order for GRP to be effective, the network needs to have certain routability characteristics. To that end, each node collects location information from surrounding nodes and uses the collected location information to select those surrounding nodes that facilitate geometric routing and sets up point-to-point links with the selected nodes (becoming direct neighbors). The node then constructs its k-neighborhood, (where the value of k represents the maximum number of hops needed to reach any node in the desired local topology) by exchanging its list of direct neighbor nodes with other nodes.

Abstract translation: 在ad-hoc移动网络中，基于几何的路由协议（GRP）用于将流量从源节点路由到目标节点。 为了使GRP有效，网络需要具有特定的可布线特性。 为此，每个节点收集来自周围节点的位置信息，并使用收集的位置信息来选择那些便于几何路由的周围节点，并与所选节点（成为直接邻居）建立点对点链路。 然后，节点通过与其他节点交换其直接邻居节点的列表，构造其k邻域（其中k的值表示达到期望的本地拓扑中的任何节点所需的最大跳数）。

公开(公告)号：EP1128574A2

公开(公告)日：2001-08-29

申请号：EP01301434.5

申请日：2001-02-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Monogioudis, Pantelis ,  Rege, Kiran M. ,  Sampath, Ashwin

IPC: H04B7/005

CPC classification number: H04W52/12 ,  H04W52/125 ,  H04W52/20 ,  H04W52/225 ,  H04W52/226 ,  H04W52/24

Abstract: In a wireless communications system, a base station employs a bit error rate (BER) based Reverse Outer Loop Power Control (ROLPC) technique. The ROLPC technique uses either instantaneous or weakly filtered values of the BER for comparison with a BER target value for adjusting a target signal-to-noise ratio (SNR). The BER target value is varied as a function of a second order statistic (e.g. variance, standard deviation) of the received SNR. In another embodiment, a symbol error count based ROLPC technique uses adaptive SER targets. In particular, a base station uses a 2 nd order statistic, e.g., standard deviation (variance), to identify, or act as a signature of, a particular cellular (wireless) communications environment. The base station monitors the standard deviation of the symbol error count of a received signal (transmitted from a mobile station). The target signal-to-noise ratio (( E b / N 0 ) T ) of this received signal is adjusted as a function of the value of the standard deviation and the adjusted ( E b /N 0 ) T target is used to provide power control.

Abstract translation: 在无线通信系统中，基站采用基于误码率（BER）的反向外环功率控制（ROLPC）技术。 ROLPC技术使用BER的瞬时或弱滤波值与用于调整目标信噪比（SNR）的BER目标值进行比较。 BER目标值作为接收到的SNR的二阶统计量（例如方差，标准偏差）的函数而变化。 在另一个实施例中，基于ROLPC技术的符号错误计数使用自适应SER目标。 特别地，基站使用2阶统计量，例如标准偏差（方差）来识别或充当特定蜂窝（无线）通信环境的签名。 基站监视接收到的信号（从移动台发送）的符号错误计数的标准偏差。 该接收信号的目标信噪比（（Eb / N0）T）作为标准偏差值的函数被调整，并且使用经调整的（Eb / N0）T目标来提供功率控制。