公开(公告)号：JP2002290148A

公开(公告)日：2002-10-04

申请号：JP2002008275

申请日：2002-01-17

Applicant: LUCENT TECHNOLOGIES INC

Inventor： RUDRAPATNA ASHOK N

IPC: H01Q1/24 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q21/24 ,  H04B7/06 ,  H04B7/10

Abstract: PROBLEM TO BE SOLVED: To provide an antenna array where beam forming/steering, MIMO and diversify operations are performed in transmitted/received signals, without having to use additional antennas. SOLUTION: The antenna array includes at least two antenna groups and each of the groups includes at least two pairs of antennas. Each of the pairs in one group includes orthogonally polarized antennas, and one antenna in a pair is polarized, in a way similar to one antenna in at least another pair in the group. The antenna array includes a circuit connected to the antenna group, to select and activate the prescribed antenna in one group, to enable the antenna array to operate in either a beam forming/steering mode, and a diversity mode or an MIMO mode or any combination thereof.

公开(公告)号：JP2002077992A

公开(公告)日：2002-03-15

申请号：JP2001242114

申请日：2001-08-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： RUDRAPATNA ASHOK N ,  ZEGER LINDA MARLENE

IPC: H04L12/56 ,  H04W16/14 ,  H04W16/24 ,  H04W24/00 ,  H04W74/04 ,  H04W88/08 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To effectively increase data rate of individual users of the third generation communication system. SOLUTION: This communication system has a first base station using a load information of an adjacent base station for adaptively scheduling the transmission to a mobile device within a coverage area of the first base station. The first base station determines whether the adjacent base station generating the maximum interference to the mobile device has a load lower than the load threshold or not (namely, whether the adjacent base station is in the lower loading condition or not). When the first base station has determined that the adjacent base station is in a lower loading condition, the adjacent base station almost does not give any interference at that timing to the mobile device and the first base station can transmit a signal to the mobile device with a high priority order. When the first base station has determined that the adjacent base station is not in the lower loading condition, the adjacent base station is giving a sufficiently larger interference to the mobile device and therefore the transmission to the mobile device is given a lower priority order.

公开(公告)号：JP2004007548A

公开(公告)日：2004-01-08

申请号：JP2003100743

申请日：2003-04-03

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KOGIANTIS ACHILLES GEORGE ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04L1/00 ,  H04L29/08

Abstract: PROBLEM TO BE SOLVED: To assign a data rate to a plurality of streams of information transmitted from a plurality of transmission apparatuses through a communication channel of a communication system. SOLUTION: This invention provides an assignment method of a data rate wherein a channel characteristic received by each stream is decided by using a correction incorporation limit and respective data rates are selected from a set (MCS) of modulation and encoding processed by a communication channel. That is, the method includes a step of applying a signal-to-noise-ratio (SNR) to a code word error probability versus SNR curve to select a particular component of the modulation and encoding set having a particular data rate, a code word error probability, and a data rate to be assigned to a stream. The SNR is obtained by applying an upper limit with respect to the error probability of the stream to a symbol error provability versus SNR curve on the basis of an entire average of symbol groups used for the stream. COPYRIGHT: (C)2004,JPO

公开(公告)号：MX2008014983A

公开(公告)日：2009-03-05

申请号：MX2008014983

申请日：2007-05-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ZOU JIALIN ,  RUDRAPATNA ASHOK N

IPC: H04W8/00 ,  H04W48/10 ,  H04W48/18

Abstract: La presente invención proporciona un método de comunicación inalámbrica. Una modalidad del método incluye proporcionar un mensaje que incluye información indicativa de al menos un portador y al menos un tipo de sistema asociado con cada portador. Otra modalidad del método incluye recibir un mensaje que incluye información indicativa de al menos un portador y al menos un tipo de sistema asociado con cada portador.

公开(公告)号：DE60111343T2

公开(公告)日：2006-03-16

申请号：DE60111343

申请日：2001-12-27

Applicant: LUCENT TECHNOLOGIES INC

Inventor： RUDRAPATNA ASHOK N

IPC: H01Q1/24 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q21/24 ,  H04B7/06 ,  H04B7/10

Abstract: An antenna array comprises at least two groups (101,103) of antennas where each group comprises at least two pairs of antennas (102, 104; 106, 108). Each of the pairs in a group contains orthogonally polarized antennas (102, 104) and at least one antenna (102) in a pair is similarly polarized to one antenna (106) in at least another pair in the group. The antenna array further comprises circuitry (120 - 128) coupled to the antenna groups to select and activate certain antennas in a group to enable the antenna array to operate in either a beam forming/steering mode, a diversity mode or a MIMO mode or any combination thereof. The antennas in the groups are activated based on the characteristics of the signals being transmitted or received by the antenna array.

公开(公告)号：DE60300255D1

公开(公告)日：2005-02-10

申请号：DE60300255

申请日：2003-03-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KOGIANTIS ACHILLES GEORGE ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04L1/00 ,  H04L29/08

Abstract: A method for allocating data rate to a stream of information to be transmitted over a communication channel of a communication system is provided. Modified union bounds are used to determine the channel characteristic experienced by each of the streams to select their respective data rates from an MCS that can be handled by the communication channel of the communication system. A method for allocating data rate to a stream of information to be transmitted over a communication channel of a communication system is provided. Modified union bounds are used to determine the channel characteristic experienced by each of the streams to select their respective data rates from an MCS that can be handled by the communication channel of the communication system.

公开(公告)号：MX2008014981A

公开(公告)日：2008-12-05

申请号：MX2008014981

申请日：2007-05-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ZOU JIALIN ,  RUDRAPATNA ASHOK N

IPC: H04W36/14 ,  H04B1/00 ,  H04W36/08 ,  H04W36/22 ,  H04W36/26 ,  H04W36/38 ,  H04W88/06

Abstract: La presente invención proporciona un método de comunicación inalámbrica que involucra al menos un primer portador que opera de conformidad con un primer tipo de sistema y se proporciona al menos un segundo portador que opera de conformidad con un segundo tipo de sistema. El método puede incluir determinar que una unidad móvil se va a traspasar entre un primer portador que opera de conformidad con el primer tipo de sistema y un segundo portador que opera de conformidad con el segundo tipo de sistema basándose en una carga de al menos uno de los primeros y segundos portadores.

公开(公告)号：AU2770400A

公开(公告)日：2000-10-26

申请号：AU2770400

申请日：2000-04-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GIARDINA CHARLES ROBERT ,  RUDRAPATNA ASHOK N

IPC: H04K3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/12 ,  H04J13/02

Abstract: The method enhances security for transmission of information by utilizing systems of Quasi-Walsh functions to provide a high resilience against jamming and interception and in addition allows multiple access and acquisition.It switches among generalized systems of Quasi-Walsh functions at some rate r, where r may be either a fixed or a variable value not equal to zero. An independent claim describes a method of transmitting bits for an ith user.

公开(公告)号：CA2302140A1

公开(公告)日：2000-10-19

申请号：CA2302140

申请日：2000-03-27

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GIARDINA CHARLES ROBERT ,  RUDRAPATNA ASHOK N

IPC: H04K3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/12 ,  H04L9/16 ,  H04B7/216

Abstract: Quasi-Walsh function systems are developed which allow multiple access as well as spectral spreading for interception and jamming prevention. Mutual interference is minimal due to orthogonal spreading. High signal hiding capability occurs by utilizing a large number of distinct orthogonal codes. An encoding algorithm is presented which allows a simple way of "keeping track" of the different systems of Quasi-Walsh systems as well as determining appropriate values for given users at specified chip values.

公开(公告)号：BRPI0711787A2

公开(公告)日：2011-12-27

申请号：BRPI0711787

申请日：2007-05-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： RUDRAPATNA ASHOK N ,  ZOU JIALIN

IPC: H04W36/08 ,  H04W36/14 ,  H04W36/22 ,  H04W36/26 ,  H04W36/38 ,  H04W88/06

Abstract: The present invention provides a method of wireless communication involving at least one first carrier operating according to a first system type and at least one second carrier operating according to a second system type is provided. The method may include determining that a mobile unit is to be handed over between a first carrier operating according to the first system type and a second carrier operating according to the second system type based on a loading of at least one of the first and second carriers.