In radio communications, a downlink is the link from a satellite to a ground station.
Pertaining to GSM and Cellular Networks, the radio downlink is the transmission path from a Base Transceiver Station (Cell Site) to the Mobile Station (Cell Phone). Traffic and signalling flows within the BSS and NSS may also be identified as uplink and downlink.
Processing a downlink signal includes receiving a downlink signal at the antennas of a mobile device, where each antenna generates a diversity signal associated with the downlink signal, and where the downlink signal includes information.
[0006] According to one embodiment, processing a downlink signal includes receiving a downlink signal at the antennas of a mobile device, where each antenna generates a diversity signal associated with the downlink signal, and where the downlink signal includes information.
Downlink signal 28 and uplink signals 48 may comprise any suitable signal modulated by a carrier such as data packets communicating information such as data, voice, video, multimedia, any other suitable type of information, or any combination of the preceding.
In the case of a nominal deployment the downlink is lost due to the new pointing of the LGA transmit antenna some time during the post-deploy ISH.
After the post-deploy ISH is completed, downlink is switched by the onboard sequence to the alternate low gain transmit antenna LGT2, which is mounted askew on the back of the TWTA box.
Downlink carrier power can be used to tell whether the hinge is within 20° of the latched position.
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