| Thread Links | Date Links | ||||
|---|---|---|---|---|---|
| Thread Prev | Thread Next | Thread Index | Date Prev | Date Next | Date Index |
|
Agreed - as
long as 15 years and more ago a significant percentage of masts in the
UK had both Vodafone and Cellnet antennas on - even if one or other
owned the actual site. 2G and 3G infrastructure sharing has considered
and in some cases implemented all manner of other scenarios (antenna
and feeder sharing etc etc through to MVNO). Doug ---- Dr Doug Pulley Chief Technical Officer picoChip Kiernan, Brian G. wrote: I agree with everything Gordon says except his last point regarding competing operators on the same tower. Towers are very expensive real estate and with the increased restrictions on tower siting due to various environmental and aesthetic considerations, it is getting even more difficult and more expensive to find and construct suitable tower sites, especially in urban and suburban areas. The mobile industry found this out a number of years ago and it is now very common to find competing operators using the same tower, often just leasing space from the tower owner (who may not even be an operator). Brian -----Original Message----- From: Gordon Antonello [mailto:GAntonello@WI-LAN.COM] Sent: Friday, March 26, 2004 11:45 AM To: STDS-802-16@listserv.ieee.org Subject: Re: [STDS-802-16] LE Ad-hoc - BS-BS Interference - Call for solut ions Usually 802.11 systems are indoors and the likelihood of having an 802.11 AP antenna in close proximity to an 802.16 BS antenna is quite low, if not zero. 802.11 systems operate in un-licensed bands, typically 5.8 and/or 2.4 GHz, and there are rules established, at least in Europe, for co-existence. I would suggest the group investigate the co-existence rules currently established for Europe as a starting point, it may prove useful. Also, in my opinion it is highly unlikely there would be two competing operators sharing the same tower, even in un-licensed bands. Gordon -----Original Message----- From: Itzik Kitroser [mailto:itzikk@runcom.co.il] Sent: Thursday, March 25, 2004 11:57 AM To: STDS-802-16@listserv.ieee.org Subject: Re: [STDS-802-16] LE Ad-hoc - BS-BS Interference - Call for solutions Marianna, I understand that from your calculations, a feasible 802.16 solution will be realistic only by BS coordination. What if you have several 802.11 APs, or any other technology using same bands, close to your BS, with no apparent means of coordination? Itzik. |