Abstract:
In a wireless communication system with an air interface comprising a plurality of bursts, a plurality of bursts is defined. Each burst comprises a field (300) embedded within the burst. The field (300) is one of a synchronization field (300') and a signaling field (300''). When the field (300) is a synchronization field (300'), a position of at least one subsequent burst comprising the signaling field (300'') is defined, and a position of at least one subsequent burst comprising the synchronization field (300') is defined.
Abstract:
A method and apparatus for maintaining communications between a mobile computer (102) and a mobile subscriber unit (104) is disclosed. The method a nd apparatus comprise determining whether a connection is available between the mobile subscriber unit (104) and a radio communications system. If a connection is available, then the method and apparatus include retrieving a first LP address for the mobile computer (102) from the radio communications system. Then, the method and apparatus comprise caching the first IP address in the mobile subscriber unit (104) for use by the mobile computer (102). Finally, the method and apparatus include utilizing the first IP address eve n if the radio communications system is unavailable and updating the first IP address with a second IP address obtained from the radio communications syst em when the radio communications system is available.
Abstract:
A method and apparatus for maintaining communications between a mobile computer and a mobile subscriber unit is disclosed. The method and apparatus comprise determining whether a connection is available between the mobile subscriber unit and a radio communications system. If a connection is available, then the method and apparatus include retrieving a first IP address for the mobile computer from the radio communications system. Then, the method and apparatus comprise caching the first IP address in the mobile subscriber unit for use by the mobile computer. Finally, the method and apparatus include utilizing the first IP address even if the radio communications system is unavailable and updating the first IP address with a second IP address obtained from the radio communications system when the radio communications system is available.
Abstract:
In a time division multiple access system, a subscriber listens to an assigned channel ( 300 ) and an alternate channel ( 302 ) until a location of reverse channel signaling is determined for the assigned channel. The subscriber also obtains a fixed periodic rate ( 304 ) for the reverse channel signaling. Based on the fixed periodic rate, the subscriber selectively listens to the alternate channel to receive reverse channel signaling while transmitting information on the assigned channel. The base repeater, however, selects the fixed periodic rate for reverse channel signaling and transmits the reverse channel signaling at the fixed periodic rate to the transmitting subscriber. If the base repeater receives a burst belonging to a superframe and determines that any burst in the superframe will collide with the reverse channel signaling, the base repeater buffers any received burst in the superframe and transmits the buffered bursts at a subsequent time.
Abstract:
In a time division multiple access system, a subscriber listens to an assigned channel ( 300 ) and an alternate channel ( 302 ) until a location of reverse channel signaling is determined for the assigned channel. The subscriber also obtains a fixed periodic rate ( 304 ) for the reverse channel signaling. Based on the fixed periodic rate, the subscriber selectively listens to the alternate channel to receive reverse channel signaling while transmitting information on the assigned channel. The base repeater, however, selects the fixed periodic rate for reverse channel signaling and transmits the reverse channel signaling at the fixed periodic rate to the transmitting subscriber. If the base repeater receives a burst belonging to a superframe and determines that any burst in the superframe will collide with the reverse channel signaling, the base repeater buffers any received burst in the superframe and transmits the buffered bursts at a subsequent time.
Abstract:
In a wireless communication system with an air interface comprised of a plurality of bursts, a communication device (102) receives a burst (200). Th e burst (200) comprises payload (206, 208), a first indicator (202) and a seco nd indicator (204). Upon receipt of the burst (200), the communication device (102) determines a value of the first indicator (202) to determine whether e nd- to-end encryption is applied to at least a portion of the payload, and determines a value of the second indicator (204) to determine whether air interface encryption is applied to at least a portion of the payload.
Abstract:
A subscriber unit ( 104 ) listens to a first channel ( 202 ) comprising a plurality of micro-slots and a plurality of data units. The subscriber unit decodes at least a portion of a data unit on the first channel comprising a micro-slot value. The subscriber unit learns the synchronization between the first channel and a second channel ( 206/300 ) based on the micro-slot value. A first base radio ( 106 1 ) transmits a first plurality of data units on the first channel. A second base radio ( 106 3 ) transmits a second plurality of data units on the second channel. The first plurality of micro-slots on the first channel are synchronized with the second plurality of micro-slots or plurality of frame boundaries on the second channel. The first base radio transmits a message ( 406 ) on the first channel in at least one of the plurality of data units, wherein the message comprises at least a micro-slot value used to associate the synchronization between the first channel and the second channel.
Abstract:
Methods for informing a mobile device (110) of adjacent sites (100) in a RF communication system (100) wherein the RF communication system comprises a first network (102) and a second network (104) are disclosed. A mobile device (110) in the first network (102) of the RF communication system (100) updates a signaling gateway (106) with position information of the mobile device (110) wherein the signaling gateway interfaces between the first network (102) and the second network (104) and receives a list of adjacent sites in the second network from the signaling gateway.
Abstract:
A method for informing a mobile device of adjacent sites in a RF communication system is disclosed. The RF communication system comprises a first network and a second network. At a site in the second network of the RF communication system, information is maintained of adjacent sites wherein the adjacent sites are within the first network, and a first list of adjacent sites is broadcast to at least one mobile device within coverage of the site in the second network.