Abstract:
At least one condition concerning a first user (102) within a communication network is obtained. Presence information of a second user (114) within the communication network is determined based upon the at least one condition of the first user (102). The presence information of the second user is then projected to the first user (102).
Abstract:
A core network element (102) is configured to facilitate establishment of a first type of wireless communication resource to facilitate communication with first communication target. The core network element detects a first message using a second type of wireless communication resource where the first message is a part of the request for the first communication resource. The core network element also detects within the first message a second message requesting establishment of a first type of wireless communication resource with the at least first communication target. As the result of the first and second messages, the first type of communication resource is established with the at least first communication target, such as a push-to-talk mobile station. The target mobile station will respond with a message indicating that it is either unavailable or not unavailable.
Abstract:
Presence information associated with a presence entity (102) is received. A composition rule associated with the presence information is also received. The composition rule is applied to the presence information in order to determine a presence state for the presence entity (102).
Abstract:
At least one Radio Frequency (RF) operating condition associated with a mobile station (102) is obtained. The RF operating condition is compared to an optimum value. When the RF operating condition is substantially different from the optimum value, the paging cycle is adjusted in order to conserve power in a battery associated with the mobile station (102).
Abstract:
A method and computer program for initiating a message to a radio access network include steps of: (404) detecting a request to transmit a probe message from a transmitter over an access channel to a radio access network; (406) calculating a transmit power for the probe message; (408) checking a condition that may result in failure to receive the probe message over the access channel by the radio access network; and (410) when the condition is determined to be true, then (412) reducing a message length of the probe message to generate a shorter probe message; (414) recalculating the transmit power to send the shorter probe message; and (416) transmitting the shorter probe message over the access channel at the recalculated transmit power.
Abstract:
A mobile station (150) senses (300) at least one boundary of a wireless communication packet (200) which includes a plurality of frames. The mobile station (150) then determines (310) at least a first group (210) and a second group (230) of frames at least in part in relation to the sensed boundary. The first group (210) of frames is received (320) at a first target reliability, and the second group (230) of frames is received (330) at a second target reliability. Optionally, the frames are sent (400) or received at a variable reliability in relation to the frames' distances from one or more boundaries (240, 250) of the packet (200).
Abstract:
A communication system (100) is provided that utilizes an apriori knowledge of padding when decoding a received frame and when allocating power to a transmitted frame. In one embodiment, a receiver (210) utilizes an apriori knowledge of padding in decoding a received frame. When the frame is likely to include padding bits, the receiver utilizes its knowledge of the padding bits to properly decode the frame. In another embodiment, a transmitter (202) may take advantage of an apriori knowledge of padding to allocate a first power level to a padded portion of a frame and to allocate a second power level to a non-padded portion of the frame.
Abstract:
A system and method establishes a data session between a mobile device (102) and a destination server (110). A radio traffic channel is established between the mobile device (102) and a radio network. At least partially simultaneous to establishing the radio traffic channel, the radio network establishes a connection between the mobile device (102) and the destination server (110).
Abstract:
In general, paging-related delays are reduced by empowering an idle mobile (120) to initiate a transition to semi-dormant, unslotted mode, and/or RSCI modes, based on triggers (304) known to the MS. This is an efficient manner (in terms of both RF and battery-life cost considerations) in which to use semi-dormant and RSCI modes (306). If the MS (120) is able to anticipate a paging channel (PCH) message (for example, after sending or receiving an SMS or presence update), then the MS can intelligently reduce its slot cycle index for a short period of time, sacrificing a small amount of battery life, when the R-SCI is most likely to deliver improved service. Moreover, if the MS is low mobility (i.e. low idle handoff rate), then the MS can transition to a semi-dormant mode with very little cost, since it will not need to send many radio environment reports.
Abstract:
An interconnect communication system (100) is provided that provides for dispatch-type services including Instant Access call set up, talkgroup creation and management, and in-band floor arbitration and mode switching that employ in-band signaling tones. By providing mobile station (101-103)-based talkgroup creation and management and in-band floor arbitration that are transparent to the underlying network, the talkgroup creation and management and in-band floor arbitration may be implemented in a legacy system without the need to modify the network and regardless of the type of network employed. Furthermore, by providing Instant Access call set up procedures and mode switching procedures that are capable of utilizing modified versions of known messages, the procedures may be implemented in a legacy system in a simplified manner, minimizing the impact of an addition of such procedures to a legacy network.