Correspondence

0176-EX-PL-2005 Text Documents

AT&T; CORP.

2005-09-15ELS_72704

Message flns ‘_'/'g//;’ Mia 607 ///Zf/ 246 _z Page| of 3 / «_ C , 7 C _e 223 Anthony Serafini From: hworstell@research.att.com Sent: Friday, September 09, 2005 3:56 PM To: Anthony Serafini Subject: RE: Experimental License WD2XSL Coordination Mr. Serafini. Thank you for your assistance. The proposal is very acceptable and will permit us to move forward with our research and testing. | would like the license to indicate a maximum power of 3 watts EIRP. We will operate our equipment as far below that power level as practical for our experiments. Thank you again for your help. Best regards, Harry Worstell Harry R. Worstell Sr. Technical Specialist Communications Technology Research AT&T Labs — Shannon Laboratory Vice Chair, IEEE 802.11 Working Group Room B233. Building 103 180 Park Avenue P.O. Box 971 Florham Park, NJ 07932—0971 Phone: +1 (973) 236—6915 Cell +1(973) 727—5564 Fax: +1 (973) 360—5873 EMAIL: hworstell@research att.com From: Anthony Serafini [mailto:Anthony.Serafini@fcc.gov] Sent: Friday, September 09, 2005 3:40 PM To: Worstel!,Harry R (Harry) Subject: RE: Experimental License WD2XSL Coordination Mr. Worstell I have discussed your situation with my supervisor. He agrees that we may modify your license to permit you to move forward with your testing. To limit the interference potential to licensed users we will need to reduce your operating power. You suggest that you only need 1—3 watts and can operate within a 1 km radius. Is this still acceptable? What power level do you need? We can remove the coordination requirement, however, your testing will still be on a non—interference basis. In the event of any interference, you would be required to shut down until the issues are resolved. Please confirm that this is acceptable and I can then go ahead and make the adjustments to the license. 09/12/2005

Message Page 2 of 3 Tony Serafini —————Original Message————— From: hworstell@research.att.com [mailto:hworstell@research.att.com] Sent: Tuesday, August 30, 2005 11:01 AM To: Anthony Serafini Subject: Experimental License WD2XSL Coordination Dear Mr. Serafini, I was a pleasure speaking with you yesterday. As | indicated, we are having some problems gaining permission from the cellular carriers to use our experimental license. We originally attained the services of Ericsson to perform frequency coordination and clearance and they are working through Comsearch. The following is the text that we sent, by way of the coordination company, to the service providers. We originally attained the services of Ericsson to perform frequency coordination and clearance and they are working through Comsearch. We believe that we will only need between 1 to 3 watts of transmit power to achieve the goal of our research. This is a request for the coordination and use of two (2) GSM mobile Tx (BS Rx) channels in the 1800—1910MHz and two (2) complementary GSM mobile Rx (BS Tx) channels in the 1930—1990MHz bands per our experimental license (call sign WD2XSL, File Number 0176—EX—PL—2005). We would like to have the channels active for a year. We understand that the channels which we use may change during that time and can change assignments as long as some reasonable advance coordination is communicated. We have attained the services of Ericsson to perform frequency coordination and clearance. These channels will be used for an experimental wireless research program. The channels will be only used at one fixed location, with only one sector antenna at a height of approximately 18 feet above the ground. The cell site and antenna will be located in Florham Park, Morris County, New Jersey at NL 40—46—37 and WL 74—24—43. fl Picture (Metafile) The antenna will be pointed directly at a building 230 degrees (South—West) from the antenna location. The antenna is ~ 530 feet away from the building and will only use sufficient transmit power to penetrate the perimeter of the building. The antenna is an Ericsson 1301—KRE 101 195971 Uen and has a gain of 18dBi. The horizontal beam width of the antenna is 88 degrees, has a vertical beam width of 4.7 degrees and will be down tilted. The mobile coverage distance will be less than 1 km. As requested, | am attaching the rejection letter from Comsearch. <<ATT Frequency Coordination 08—30—05.doc>> Any help you can provide us is appreciated. Best regards, Harry Worstel! 09/12/2005

Message Page 3 of3 Harry R. Worstell Sr. Technical Specialist Communications Technology Research AT&T Labs — Shannon Laboratory Vice Chair. IEEE 802.11 Working Group Room B233. Building 103 180 Park Avenue P.O. Box 971 Florham Park, NJ 07932—0971 Phone: +1 (973) 236—6915 Cell +1(973) 727—5564 Fax: +1 (973) 360—5873 EMAIL: hworstell@research att.com 09/12/2005


Document Created: 2005-09-15 11:29:14
Document Modified: 2005-09-15 11:29:14
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