What is spectrum handoff latency?

• A. Spectrum handoff latency is the time taken to switch to a new frequency during handoff
• B. Spectrum handoff latency is the period over which an xG user can use licensed band before handoff
• C. Spectrum handoff latency is the time taken to estimate the path between a current licensed band and a new licensed band
• D. Spectrum handoff latency is the time taken to send handoff information to the spectrum broker