Session parameters in the periodic assistance data delivery

摘要

Session parameters and/or information regarding session parameters are provided to a target device from a location server in a periodic assistance session. For example, the location server starts an unsolicited periodic assistance session, and transmits information indicating the unsolicited assistance session is periodic as well as any relevant session parameters to the target device. The location server may change session parameters “on the fly,” and inform the target device of the modified session parameters. The target device may initiate a session and requests certain parameters, to which the location server responds with an indication as to what parameters the target device will actually receive. Additionally, the target device may modify the session parameters, and the location server can respond to the target indicating whether or not the modification was accepted or if the modification was accepted in a modified form.

主权项

1. A method, comprising:
modifying session parameters to be associated with a periodic assistance data delivery session by a location server during the periodic assistance data delivery session, wherein the session parameters comprise at least one of frequency information regarding how often a payload of the assistance data is delivered, and duration information regarding how long the periodic assistance data delivery session will last; causing transmission, by the location server, of the modified session parameters in a provide message of the periodic assistance data delivery session, the provide message comprising an information element in which the modified session parameters are transmitted, and an identification that identifies as assistance data stream affected by the modified session parameters; continuing, based on the modified session parameters, the periodic assistance data delivery session to provide periodic assistance data to a device; and indicating the session parameters to the device, wherein the modified session parameters override previous session parameters transmitted to the device via a previous message with the previous session parameters.