in terms of coexistence between Verizon upper band LTE transmit and the narrowband public-safety receive channels. These narrowband allocations are technology neutral, but theoretically could support either 2 by 3 MHz or 4 by 1.4 MHz LTE channels, not exactly narrowband but relatively narrowband when compared to other LTE networks. The US LTE 700-MHz band plan between 698 and 806 MHz is unlikely to be adopted in Asia (with very good reason). The most likely band plan in these markets (basically most Asian markets excluding Japan) is a 2 by (rather ambitious) 45 MHz duplex pair implemented as a standard duplex as shown in Table 16.6. Putting this US regulatory setback to one side, the promise of LTE public safety spectrum in the US market and associated federal funding has prompted infrastructure vendor interest. In July 2010, Motorola announced a pilot LTE public-safety network in San Francisco as a broadband overlay to the existing APCO 25/Project 25 narrowband digital radio system. APCO25 is a user requirement body overseen by the Association of Public Safety Commu- nications Officials. Project 25 (P25) 1 fulfils a similar role to the TETRA Forum² and ETSI TETRA standards process 3 in European and ROW markets. P25 radios have overlapping spec- trum with analogue and iDEn digital two-way radios. The networks and band allocations are also described functionally as public protection and disaster relief (PPDR). At the APCO Conference in August 2010 there were vendor announcements from Alcatel on public-safety LTE integration with EADS supply public-safety 911 despatch data systems. EADS also supplies TETRA systems outside the US. Nokia Siemens announced joint projects 1 hhttp://www.tiaonline.org/standards/technology/project_25/. 2 http://www.tetramou.com/. 3 hhttp://www.etsi.org/website/Technologies/TETRA.aspx. Making Telecoms Work with Harris, a P25 supplier. On 7 September Motorola and Ericsson announced they would be working together on LTE public-safety solutions Public-safety vendors and regulators have a cheq