Patent ID: 8676233

Claim:
A method comprising: determining, at a first device, that the first device supports at least a first version of a first set of versions of a positioning protocol; and transmitting, at the first device, an indication signal to a second device, wherein the indication signal includes at least one transport message comprising a set of position determination data messages (PDDMs), each particular PDDM of the set of PDDMs having a corresponding particular version of the first set of versions, and wherein the set of PDDMs includes: a first PDDM comprising a first message type field having a first value associated with the first version, and wherein the set of PDDMs conditionally includes: upon determining that the first device supports a second version of the first set, a second PDDM comprising a second message type field having a request extended second device capabilities request element, a provide extended first device capabilities response element, and a second value associated with the second version; and upon determining that the first device supports a third version of the first set, a third PDDM comprising a third message type field having a request advanced second device capabilities request element, a provide advanced first device capabilities response element, and a third value associated with the third version.