Setting up a path for a satellite phone subscriber requires a comprehensive handshaking mechanism between the MS, the satellite, and the BS. Prepare the steps that are desirable in setting up such a path and comment on how you could minimize traversal of signals between the satellite and the MS/BS.
What will be an ideal response?
The steps involved in setting up a path for a satellite phone subscriber are:
For an incoming call:
(a) The gateway helps to reach the closest BS from the PSTN.
(b) It then uses the HLR-VLR pair to indicate the satellite serving the most recently known location of the MS.
(c) The satellite employs a paging channel to inform the MS about an incoming call and the radio resource to use for the uplink channel.
For a call originating from an MS:
(a) The MS accesses the shared control channel of an overhead satellite.
(b) The satellite in turn informs the BS for authentication of the user/MS.
(c) The BS then allocates a traffic channel to the MS via the satellite and also informs the gateway about additional control information, if it is necessary to route the call through the backbone.
You might also like to view...
A barrier to effective communication associated with using words that are uncommon, nonstandard, or too general represents a(n) _____.
a. lack of common experience b. overuse of abstractions c. fear of disapproval d. environmental factor
The document that certifies that there was no consultation with other bidders is called a ____________________
Fill in the blank(s) with correct word
A(n) ____ window unit consists of a frame in which a sash hinged at the top swings outward by means of a crank or lever.
a.roof b.bay c.revolving d.awning
The groove in the top of the footing shown in the figure is called a _____
a. keyway b. reinforcement recess c. runway d. locking groove