name: LOS
full_form: Line Of Sight
context: An Integrity Monitor (IM) function in the network should detect unhealthy (i.e., failed/failing) satellites. Excessively large pseudo range errors, as evidenced by the magnitude of the corresponding DGPS correction determined by the IM, may be used to detect unhealthy satellites. Unhealthy satellites should be detected very close to the occurrence of the satellite failure (e.g. 10 seconds) and marked in an unhealthy satellite list as unusable/bad. When unhealthy satellites are detected, the assistance and/or DGPS correction data should not be supplied for these satellites. Upon receiving the list of unhealthy satellites from the SRNC, the UE shall consider the data associated with these satellites to be invalid. The IM function should also inform the UE of measurement quality in DGPS modes when satellites are healthy. This can be done by computing the position of the DGPS reference receiver using its derived pseudo ranges and differential corrections at the IM, and differencing the IM
description: The Line Of Sight (LOS) state describes a condition in a V2V sidelink channel where two vehicles are on the same street and their communication path is not obstructed by other vehicles. This state represents a clear line of sight between the transmitting and receiving vehicles.
explanation: The text describes 'LOS' as a specific condition or state within a V2V communication channel, indicating its role in defining the quality and availability of the connection.
section_title: 6.2	Channel model
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