公开(公告)号：BR0102489A

公开(公告)日：2002-04-30

申请号：BR0102489

申请日：2001-06-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： AVIDOR DAN ,  MUKHERJEE SAYANDEV ,  RYOO JEONG-DONG

IPC: H04B7/26 ,  H04L12/56 ,  H04W4/00 ,  H04W16/04 ,  H04W16/14 ,  H04W24/00 ,  H04W72/04 ,  H04W72/06 ,  H04W72/10 ,  H04Q7/36

Abstract: Without intercell coordination on a per communication request basis, channel assignment can be efficiently performed by developing for each cell, or a sector thereof when the cells are sectorized using directional antennas, a priority list of groups of channels, and selecting a channel to be assigned in response to a request for service from the highest priority group which has available channels at the time of the service request. The priority lists are developed based on various interference measurements that are made. The priority lists tend to remain the same for relatively long periods of time. However, periodically, the priority lists should be redetermined to insure that the best lists are being employed. For example the lists may need to be changed due to new construction or to seasonal vegetation changes, which may affect the interference experienced in the system.

公开(公告)号：CA2216761C

公开(公告)日：2002-01-01

申请号：CA2216761

申请日：1997-09-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： VALENZUELA REINALDO A ,  KASTURIA SANJAY ,  WRIGHT GREGORY ALAN ,  AVIDOR DAN ,  SIZER THEODORE II

IPC: H04J3/00 ,  H04J3/16 ,  H04W16/10 ,  H04W16/28 ,  H04W84/14 ,  H04Q7/38 ,  H04B15/00

Abstract: A time-division-multiplexed fixed wireless loop system and methods therefor are disclosed. The system comprises a plurality of cells each having a base station and a plurality of terminals. The base station includes a steerable and adjustab le multibeam antenna for communicating with each of the terminals, which have f ixedantennas. A cell controller associated with each bas e station allocates communication time slots so as to minimize mutual interference between base station/termin al links sharing the same slot. Slot assignment is based on regional, periodically up dateinterference measurements that are stored in data ba ses.

公开(公告)号：CA2345169A1

公开(公告)日：2001-12-30

申请号：CA2345169

申请日：2001-04-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： AVIDOR DAN ,  MUKHERJEE SAYANDEV ,  RYOO JEONG-DONG

IPC: H04B7/26 ,  H04L12/56 ,  H04W4/00 ,  H04W16/04 ,  H04W16/14 ,  H04W24/00 ,  H04W72/04 ,  H04W72/06 ,  H04W72/10 ,  H04Q7/36

Abstract: Without intercell coordination on a per communication request basis, chann el assignment can be efficiently performed by developing for each cell, or a sector thereof when the cells are sectorized using directional antennas, a priority list of groups of channels, and selecting a channel to be assigned in response to a request fo r service from the highest priority group which has available channels at the time of the service request. The priority lists are developed based on various interference measurements that are made. The priority lists tend to remain the same for relatively long periods of time. However, periodically, the priority lists should be redetermined to insure that the best lists are being employed. For example the lists may need to be changed due t o new construction or to seasonal vegetation changes, which may affect the interference experienced in the system. Advantageously, system capacity under peak concentrated load conditions may increase. This advantage is further magnified under fiel d conditions for which the cell shapes are not ideal.

公开(公告)号：CA2216675C

公开(公告)日：2001-11-20

申请号：CA2216675

申请日：1997-09-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： VALENZUELA REINALDO A ,  AVIDOR DAN ,  KASTURIA SANJAY ,  WRIGHT GREGORY ALAN ,  SIZER THEODORE II

IPC: H01Q3/26 ,  H04B7/00 ,  H04B7/26 ,  H04W16/28 ,  H04W72/08 ,  H04W84/14 ,  H04Q7/36 ,  H04B15/00 ,  H04Q7/38

Abstract: A time-division-multiplexed fixed wireless loop system and methods therefor are disclosed. The system comprises a plurality of cells each having a base station and a plurality of terminals. The base station includes a steerable and adjusta ble multibeam antenna for communicating with each of the terminals, which have f ixedantennas. A cell controller associated with each ba se station allocates communication time slots so as to minimize mutual interference between base station/termin al links sharing the same time slot. Slot assignment is based on regional, periodica lly updated interference measurements that are stored in data bases.

公开(公告)号：CA2215607C

公开(公告)日：2001-08-21

申请号：CA2215607

申请日：1997-09-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WRIGHT GREGORY ALAN ,  VALENZUELA REINALDO A ,  KASTURIA SANJAY ,  AVIDOR DAN ,  SIZER THEODORE II

IPC: H04J3/16 ,  H01Q1/24 ,  H01Q3/26 ,  H04B7/00 ,  H04W16/14 ,  H04W16/28 ,  H04W24/00 ,  H04W72/08 ,  H04W76/02 ,  H04W84/14 ,  H04B15/00 ,  H04Q7/20

Abstract: TDM-BASED FIXED WIRELESS LOOP SYSTEM A time-division-multiplexed fixed wireless loop system and methods therefor are disclosed. The system comprises a plurality of cells each having a base station and a plurality of terminals. The base station includes a steerable and adjustab le multibeam antenna for communicating with each of the terminals, which have f ixedantennas. A cell controller associated with each bas e station allocates communication time slots so as to minimize mutual interference between base station/termin al links sharing the same time slot. Slot assignment is based on regional, periodical ly updated interference measurements that are stored in data bases.