公开(公告)号：JPH1079722A

公开(公告)日：1998-03-24

申请号：JP18556697

申请日：1997-07-10

Applicant: LUCENT TECHNOLOGIES INC

Inventor： I CHIH-LIN ,  PARTYKA ANDRZEJ ,  WEBB CHARLES ALBERT III

IPC: H04B1/7085 ,  H04B1/709 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L7/00 ,  H04J13/04

Abstract: PROBLEM TO BE SOLVED: To provide a multicode code division multiple access(MC-CDMA) receiver where number of circuits to process data channels is not increased and increase in power consumption at a transmitter-receiver is suppressed even when number of data channels used for the MC-CDMA system is increased. SOLUTION: The manufacturing cost and the power consumption of the MC-CDMA receiver that receives N sets of coding signal channels via a plurality of space paths are reduced. In this MC-CDMA receiver especially, when a synchronization (1st type) correlation means recovers a synchronizing signal and a control section from a data signal received via any signal path, each of N-sets of data (2nd type) correlation means uses the synchronizing signal and the control signal to decode any of N-sets of data signal channels received via a space path and applies inverse spread spectrum processing to the decoded signal.

公开(公告)号：JPH1079977A

公开(公告)日：1998-03-24

申请号：JP17347197

申请日：1997-06-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ANDERSON NEFATITI ,  BORST SIMON C ,  CANNELL LYNELL E ,  CHENG TERRY SI-FONG ,  CHEW LINDSEY ,  GRANDHI SUDHEER A ,  I CHIH-LIN ,  KAUFMAN JOSEPH SAMUEL ,  LUBACHEVSKY BORIS DMITRIEVICH ,  NARENDRAN BALAKRISHNAN ,  SAND DONNA M

IPC: H04J3/16 ,  H04W72/06 ,  H04Q7/36 ,  H04Q7/34 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To perform dynamic allocation and to obtain the growth of a simple system and a high capacity by allocating channels according to a priority that is set to a channel list as a function of long-term and short-term interference fluctuation in every cell/sector in a wireless communication network. SOLUTION: A telephone exchange center 10 which controls entire operations of a system has a dynamic channel allocating system IBDCA on an interference base and performs signal measurement, channel sequencing, call allowance, channel allocation, call maintenance, hand-off, etc. A base station 14 sequences an entire spectrum by signal intensity RSS to long-term fluctuation based on the result that the intensity RSS of a mobile communication device 20 and a carrier-to-interference ratio are measured, and further sequences several channels of the highest order based on the RSS of short-term fluctuation. Then, it allocates a channel that is sequenced based on a prescribed reference in response to a call. Thereby, a channel can dynamically and automatically be allocated to a mobile station.

公开(公告)号：CA2202807A1

公开(公告)日：1997-12-28

申请号：CA2202807

申请日：1997-04-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SAND DONNA M ,  CHEW LINDSEY ,  CANNELL LYNELL E ,  LUBACHEVSKY BORIS DMITRIEVICH ,  ANDERSON NEFATITI ,  KAUFMAN JOSEPH SAMUEL ,  CHENG TERRY SI-FONG ,  GRANDHI SUDHEER A ,  I CHIH-LIN ,  BORST SIMON C ,  NARENDRAN BALAKRISHNAN

IPC: H04W16/04 ,  H04W16/10 ,  H04W72/04 ,  H04W72/06 ,  H04W72/08 ,  H04L12/24 ,  H04L12/28

Abstract: An interference based dynamic channel assignment scheme for a wireless communication network, for self configuring dynamic channel assignment of a plurality of channels, comprises the steps of: prioritizing a channel list and prioritizing a selected subset of the prioritized channel list. In further enhancements of the present invention, prioritizing a channel list is distributed on a per cell/sector basis so that prioritization is independent of frequency usage information from other cells/sectors and prioritization is based upon uplink and downlink characteristics.

公开(公告)号：CA2202807C

公开(公告)日：2001-12-18

申请号：CA2202807

申请日：1997-04-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BORST SIMON C ,  ANDERSON NEFATITI ,  CHEW LINDSEY ,  GRANDHI SUDHEER A ,  I CHIH-LIN ,  KAUFMAN JOSEPH SAMUEL ,  LUBACHEVSKY BORIS DMITRIEVICH ,  NARENDRAN BALAKRISHNAN ,  CANNELL LYNELL E ,  SAND DONNA M ,  CHENG TERRY SI-FONG

IPC: H04W16/04 ,  H04W16/10 ,  H04W72/04 ,  H04W72/06 ,  H04W72/08 ,  H04L12/24 ,  H04L12/28

Abstract: An interference based dynamic channel assignment scheme for a wireless communication network, for self configuring dynamic channel assignment of a plurality of channels, comprises the steps of: prioritizing a channel list and priorit izing a selected subset of the prioritized channel list. In further enhancements of the prese nt invention, prioritizing a channel list is distributed on a per cell/sector basis so tha t prioritization is independent of frequency usage information from other cells/sectors and prio ritization is based upon uplink and downlink characteristics.

公开(公告)号：CA2243790A1

公开(公告)日：1999-02-15

申请号：CA2243790

申请日：1998-07-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： I CHIH-LIN ,  HALEEM MOHAMED ABDUL

IPC: H04W16/10 ,  H04W16/14 ,  H04Q7/36 ,  H04Q7/30

Abstract: Co-Existence Dynamic Channel Assignment (DCA) techniques for overlay macrocellular systems facilitate the coexistence of embedded autonomous underlay microcellular (e.g., indoor) systems. The co-existence of the two syste ms without excessive mutual interference is achieved through systematic determinist ic exclusion of predefined subsets of the universal channel set from the dynamic assignment to the overlay macrocells. The sets of channels are made available to the underlay systems. The exclusion is done with minimal DCA performance degradation . Multiple deterministic exclusions methods are described.

公开(公告)号：CA2205818C

公开(公告)日：2001-10-09

申请号：CA2205818

申请日：1997-05-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WEBB CHARLES ALBERT III ,  I CHIH-LIN ,  PARTYKA ANDRZEJ

IPC: H04B1/7085 ,  H04B1/709 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L7/00 ,  H04J13/02 ,  H04B7/216 ,  H04B1/69

Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal p aths. In the MC-CDMA receiver, once a timing correlator means has recovered the timing and control signals for the data signal received over any particular signal path, those timing and control signals are utilized by each of the N data (second type) correlator means for decoding and despreading an associated one of the N data signal channels received over that path.

公开(公告)号：CA2243802A1

公开(公告)日：1999-02-15

申请号：CA2243802

申请日：1998-07-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HALEEM MOHAMED ABDUL ,  I CHIH-LIN

IPC: H04W16/10 ,  H04W16/14 ,  H04Q7/36

Abstract: Co-Existence Dynamic Channel Assignment (DCA) techniques for overlay macrocellular systems facilitate the coexistence of embedded autonomous underlay microcellular (e.g., indoor) systems. The Co-existence of the two syste ms without excessive mutual interference is achieved through statistical systematic exclusion of predefined subsets of the universal channel set from the dynamic assignment to the overlay macrocells. The sets of channels are made available to the underlay systems. The exclusion is done with minimal DCA performance degradation . Multiple exclusions methods are described.

公开(公告)号：CA2205818A1

公开(公告)日：1998-01-12

申请号：CA2205818

申请日：1997-05-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PARTYKA ANDRZEJ ,  I CHIH-LIN ,  WEBB CHARLES ALBERT III

IPC: H04B1/7085 ,  H04B1/709 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L7/00 ,  H04J13/02 ,  H04B7/216 ,  H04B1/69

Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal paths. In the MC-CDMA receiver, once a timing correlator means has recovered the timing and control signals for the data signal received over any particular sign al path, those timing and control signals are utilized by each of the N data (second type) correlator means for decoding and despreading an associated one of the N data signal channels received over that path.