@techreport{barnes-periodic-location-retrieval-00,
    number =    {draft-barnes-periodic-location-retrieval-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-barnes-periodic-location-retrieval/00/},
    author =    {Mary Barnes},
    title =     {{Periodic Retrieval of Location Information by Devices and Location Information Servers}},
    pagetotal = 14,
    year =      2008,
    month =     oct,
    day =       27,
    abstract =  {The base HTTP Enabled Location Delivery (HELD) protocol includes options for retrieving location information from a LIS by a Device. Some networks require the ability for the device to periodically request location information from the LIS and/or for the LIS to periodically request location information from the device. Extensions to base HELD allow a Device to establish a context with a LIS and negotiate capabilities of the Device in terms of providing location information. The measurement extensions to base HELD allow the LIS to request location information from a Device. This document provides an overview of the requirements and a solution using HELD and HELD extensions to support the periodic request of location information, both by a Device from an LIS and by the LIS from a Device, depending upon the specific scenario and measurement capabilities of the Device.},
}