An apparatus (20) and methods are provided for providing Instant Messaging (IM) in a wireless communication system. The apparatus (20) comprises an IM data storage device (22) configured to store first IM contact data associated with an IM client and an IM server (24) configured to access the IM data storage device (22) and retrieve the first IM contact data associated with the IM client. The apparatus (20) is further comprised of an IM access portal (26) in operable communication with the IM se...

The need to reduce the cost associated with signaling mobiles (120) across multiple cells (101-108) is addressed by embodiments of the present invention. A targeted MS is initially paged only in those cells in which the paging channel loading level is below a particular paging threshold. Similarly for short messaging, the RAN transmits the short messaging to the MS only in those cells in which the paging channel loading level is below a short messaging threshold. Therefore, the MS can be signale...

Techniques for avoiding handoff to a channel impaired due to frequency dependent fading, while minimizing idle mode signaling are disclosed. In one aspect, an access terminal determines the assigned channel on an access point and caches the channel. In another aspect, the access terminal replaces a default channel associated with an access point in a cache with the assigned channel. In yet another aspect, the access terminal uses the cached channel associated with an access point when measuring ...

Determining the position of a mobile terminal operating in a packet-switched communications system based on timing advance values obtained through network initiated artificial cell hops. The mobile terminal may be instructed to perform a series of artificial cell changes so that timing advance values may be obtained for the mobile terminal with respect to a plurality of base stations. The position of the mobile terminal is then determined based on the timing advance values, optionally supplement...

A vehicular adapter system is described having wireless local area network (WLAN) capabilities. The adapter system includes an adapter configured to plug into a cigarette lighter socket of a vehicle. The adapter has a WLAN module contained therein, and is configured to electrically couple the WLAN module to a wireless communication device. The WLAN module is operable to communicate with other WLAN-enabled devices in the vehicle, such as a head unit with another embedded WLAN module. The interope...

Ordinary data groups and index information indicating data names and memory locations of broadcasted data are transmitted in multiplex mode from the data broadcasting station 101, and received by the onboard terminal 103 and/or the information service station 104 through the data distribution part 102. The onboard terminal 103 detects the information which it does not hold by referring to the index information, and presents a list of data names at the onboard display part 133. The service statio...

A wireless communication system that transmits content signals and remote control signals between a content retention and distribution system and a content reproduction terminal over a half-duplex channel such as an RF channel having the same frequency band. The wireless communication system includes a base station and a remote station. The base station formats and transmits the content signal over the half-duplex channel. The remote station receives the transmitted content signal and transfers ...

The present invention is secure wireless network. The secure wireless network can include multiple receiver nodes coupled to corresponding high-precision clocks. Each of the receiver nodes can be configured to receive wireless frames transmitted both within and outside a secured geographic area covered by the secure wireless network. A master synchronization high-precision clock can be coupled to the corresponding high-precision clocks. Additionally, a position location system can be coupled to ...

A system and method are presented for determining when to exit an existing wireless communications coverage network. The method samples the device geographical position, determines a threshold boundary line, measures the position of each sample point with respect to the threshold boundary line, and, beginning at a predetermined initial value, maintains a running sum in response to measuring position. The method uses the threshold boundary line to partition a coverage area for the existing covera...

Methods (100, 200, 300) in a wireless portable communication device and wireless communication network for resolving subsidy lock by transmitting and receiving messages over-the-air are provided. Upon entering a restricted mode of operation (118, 204), the wireless portable communication device transmits a request to the wireless communication network requesting to deactivate the restricted mode of operation (120, 212). In response, the wireless portable communication device receives a message d...