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9-1-1 Location Technologies Test Bed Seeks Vendor Participants for 2021 Stage Zb Campaign

9-1-1 Location Technologies Test Bed LLC ("Test Bed LLC") invites vendors of new or emerging location technologies to participate in the 2021 Stage Zb test campaign.

Consistent with Stages Z and Za, Test Bed LLC seeks to evaluate the performance of wide-area location systems that determine the altitude (Z-axis) of a wireless 9-1-1 caller. The results of Stage Zb testing will inform wireless providers and public safety stakeholders about solutions that can meet requirements established by the United States Federal Communications Commission ("FCC").


Field testing of Stage Zb campaign is tentatively planned to begin in the fourth quarter of 2021, depending on the number of vendors and complexity of the technologies to be tested. All applications will be reviewed by the Test Bed LLC’s Program Manager and Technical Advisory Committee ("TAC").

Schedule Planned Date
Application questions due March 26, 2021
Response to application questions April 7, 2021
Application due date April 15, 2021
Estimated start of Dry Run tests October 1, 2021
Estimated field test start date December 1, 2021

Application Instructions and Questions

Any party interested in completing a Stage Zb application should send an email to Mr. Harish Punjabi at hpunjabi@911locationtestbed.org from a company email account.

All questions regarding the application instructions or the proposed testing should be emailed to Mr. Harish Punjabi at hpunjabi@911locationtestbed.org no later than March 26, 2021. Please note that questions and answers may be shared with all applicants.

Test Environment

The scope and nature of Stage Zb testing will closely follow the assumptions listed below. Further detailed information will be listed in the application.

Contact Information

All inquiries should be directed to:

Mr. Harish Punjabi
Email: hpunjabi@911locationtestbed.org
Telephone: 202.736.2987
9-1-1 Location Technologies Test Bed, LLC
1400 16th Street NW, Suite 600
Washington DC 20036

Test Bed LLC – Background:

In 2015, the U.S. Federal Communications Commission adopted new rules that require the nationwide wireless providers to establish an independently administered and transparent indoor test bed to test and verify that location technologies are capable of meeting the Commission’s new location accuracy requirements for wireless calls to 9-1-1 emergency services. (See paragraphs 121 to 132 of the FCC’s Fourth Order). In accordance with the FCC’s Order, the test bed must also be available to vendors of new or emerging location technologies that can demonstrate how those technologies might enable wireless providers to meet the new enhanced location accuracy requirements through improved horizontal location technologies or providing accurate vertical information (e.g., z axis).

At the direction of its member companies, CTIA established the 9-1-1 Location Technologies Test Bed, LLC (Test Bed LLC) as an independent company to administer and operate the indoor Test Bed consistent with the FCC’s rules. The Test Bed LLC selected the Alliance for Telecommunications Industry Solutions (ATIS) as the Test Bed program manager. The Test Bed LLC selected a vendor to administer and execute the Test Bed. The Test Bed LLC and Test Bed are modeled on the FCC’s CSRIC III and IV methodologies and recommendations and is established consistent with the Commission’s Order.

Test Bed LLC has also directed the Program Manager and Administrator/Executor to implement the Test Bed consistent with the recommendations of ATIS’ Emergency Services Interconnection Forum (ESIF) Emergency Services & Methodologies (ESM) Subcommittee which has and continues to develop the requisite test methodologies through a collaborative multi-stakeholder process.

Wireless providers and vendors of indoor location technologies are encouraged to participate in the Test Bed by periodically visiting this website for important announcements, or by contacting the contact person above to obtain information regarding upcoming events.