Naval Research Laboratory, Code 3220, 4555 Overlook Ave. S.W., Washington, D.C. 20375-5326

66 -- PERSONAL COMMUNICATION SERVICES (PCS) TEST BED SOL N00173-00-R-MS04/0001 DUE 070800 POC Mary Sandy, Contract Specialist, Code 3220.MS, F. Janilea Bays, Contracting Officer, (202) 767-3710 This notification is in response to questions that were received in regarding the previous synopsis, which appeared in the June 14, 2000 edition of the Commerce Business Daily. The following are the stated questions with the answer to each question: Question 1: Does the customer intend to lease or own the system? Answer 1: The Naval Research Laboratory will own the Personal Communications Services (PCS) Test Bed. Question 2: What is the number of frequencies available for use on the system? What is the frequency band? Answer 2: The PCS Test Bed must provide GSM compliant European (GSM 900 MHz, DCS 1800MHz) and United States (PCS 1900 MHz) cellular and PCS frequency band coverage. The base configuration to be delivered under this procurement must provide 8 GSM (TDMA) channels that occupy any 200 kHz transmit and receive frequency channel pair specified for operation in the GSM 900 MHz, DCS 1800 MHz and PCS 1900 MHz frequency bands by the associated regulatory agencies and documents. The TRX deliverable (1 each) can be a single GSM 900/ DCS 1800/ PCS 1900 tri-band unit or combinations of single and dual band units so that any one of the three service bands (GSM 900/ DCS 1800/ PCS 1900) can be selected for operation at any one time. Simultaneous multiple band operation is not required. Question 3: What is the geographic coverage requirement? Answer 3: The PCS Test Bed base station's geographic coverage will be determined by the associated transmit/ receiver antennas which are not deliverables under this procurement. Question 4: What is the coverage requirement between NRL and field sites? Answer 4: See Answer 3. Question 5: What is the anticipated number of sites? Answer 5: See Answer 3 Question 6: What is the anticipated number of users? Answer 6: The traffic and simultaneous connection capacity is specified in the technical specification. The Transcoder Rate Adaptation Unit capacity must have 64 traffic channels as specified in the technical specifications. No specific user scenarios are specified for this procurement. Question 7: Who are the intended users of this system? Answer 7: The PCS Test Bed is intended solely as a research tool for use in engineering laboratory and field test environments. Question 8: Does the customer anticipate a requirement for any of the following: dispatch, paging, encryption, emergency? Describe. Answer 8: NRL anticipates a requirement for those services, therefore the offeror may quote those optional capabilities. Question 9: Briefly describe the system application. Answer 9: The PCS Test Bed will be used as described in Answer 7 and must operate as any GSM 900, DCS 1800 or PCS 1900 commercial base station of equal capacity operates that conforms to those standards. Question 10: Does the customer envision the use of data applications on the system? Answer 10: Data applications per the GSM 900, DCS 1800 and PCS 1900 cellular and PCS technical specifications are required when these services are available in conjunction with a commercial wireless service provider (such as Short Messaging Service). Question 11: Does the customer envision a requirement for interoperability with other technologies (i.e. two-way radio, telephone)? Define. Answer 11: The main interface to other systems is the E1/T1, PSTN, Ethernet LAN and RS 232 Serial interfaces per the technical specifications. Support for packet based routing of voice or data communications over IP networks (Ethernet) is required. Question 12: Does the customer envision interoperability with other frequency bands? Define. Answer 12: The test bed is required to support on-campus hand-offs between base transceiver stations under control of its base station controller and off-campus roaming to commercial service providers. Simultaneous multiple band (GSM 900, DCS 1800, PCS 1900) operation is not required. Question 13: What is the anticipated length of the test under consideration? Answer 13: The laboratory and field tests vary in duration. The test bed can be expected to be stored or operate intermittently/ continuously in environments as specified in the technical specifications. Question 14: Is there any requirement of priority levels on the system? Define. Answer 14: Priority levels are required To the extent they are normally provided for in standard commercial GSM/DCS/PCS compliant base stations of similar description. Priority calls would affect laboratory and field test outcomes and as such are a requirement for bonafide test scenarios. User discretionary features may be quoted as options. Question 15: Please define acceptable system delays? Answer 15: Various time delays through the system shall be determined by the governing commercial telecommunications standards and practices. Question 16: Will the system be deployable? Answer 16: The system will be deployed to fixed sites and undergo typical shipping conditions. An optional recommended shipping container is desired. Question 17: Is there any requirement for radio to radio coverage? Please define. Answer 17: No direct handset to handset transmissions are required. All telephone callsare switched through the microcellular switch. Base transceiver station communications are via the trunk ports. Posted 06/28/00 (W-SN469498). (0180)

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