Abstract: The disclosed embodiments are a novel and improved method and system that prevents RLP3 from generating unnecessary NAKs, thus preventing unnecessary data frame retransmissions. The disclosed embodiments are efficient, neither delaying the delivery of data frames to the higher data services layer nor delaying the delivery of necessary NAKs to the multiplex sublayer. The disclosed embodiments are implemented with minimal changes to existing RLP3 implementation. The disclosed embodiments utilize a buffering scheme for all incoming traffic. The purpose of this buffering scheme is to reorder the received packets into the order that they were transmitted prior to delivering them to the PPP layer. Received frames are reordered by determining the order that physical layer frames were transmitted by a peer, and by buffering each received frame until all frames transmitted prior to it have been received. The frame reordering is accomplished using timers and a memory buffering mechanism.

Abstract: In one disclosed embodiment, a mobile unit receives an assigned reverse supplemental channel data rate, for example, as part of a supplemental channel assignment from a base station to the mobile unit in a cdma spread spectrum communication system. The mobile unit utilizes a profiling table to determine a maximum feasible reverse supplemental channel data rate corresponding to a given forward supplemental channel data rate. For example, the profiling table can be constructed by testing the mobile unit to determine what combinations of forward and reverse supplemental channel data rates and operating conditions cause the mobile unit's processor to “crash”. The mobile unit communicates data over the reverse supplemental channel at a data rate which does not exceed the maximum feasible reverse supplemental channel data rate, for example, by constructing service data units using filler to lower the communication data rate below the maximum feasible reverse supplemental channel data rate.

Abstract: A mobile station (16) may include a terminal equipment (10), a mobile station modem (14), a mobile telephone (12), and other features. A CPU (52) selectively generates control signals to efficiently control transmission of supplemental channel request messages (SCRM) by the mobile station (16). In one embodiment, transmission of a SCRM in response to a predetermined event is prohibited until a fixed period of time has elapsed since the last transmission of an SCRM in response to the predetermined event.

Abstract: A mobile station (16) may include a terminal equipment (10), a mobile station modem (14), a mobile telephone (12), and other features. A CPU (52) selectively generates control signals to efficiently control transmission of supplemental channel request messages (SCRM) by the mobile station (16). In one embodiment, transmission of a SCRM in response to a predetermined event is prohibited until a fixed period of time has elapsed since the last transmission of an SCRM in response to the predetermined event.

Abstract: In one disclosed embodiment, a mobile unit receives an assigned reverse supplemental channel data rate, for example, as part of a supplemental channel assignment from a base station to the mobile unit in a cdma spread spectrum communication system. The mobile unit utilizes a profiling table to determine a maximum feasible reverse supplemental channel data rate corresponding to a given forward supplemental channel data rate. For example, the profiling table can be constructed by testing the mobile unit to determine what combinations of forward and reverse supplemental channel data rates and operating conditions cause the mobile unit's processor to “crash”. The mobile unit communicates data over the reverse supplemental channel at a data rate which does not exceed the maximum feasible reverse supplemental channel data rate, for example, by constructing service data units using filler to lower the communication data rate below the maximum feasible reverse supplemental channel data rate.

Abstract: A method for a wireless device to automatically and dynamically determine if the current system in which it is operating is capable of offering data service connectivity. The present invention requires no intervention on the part of the user. According to the method of the present invention, a call origination signal from a wireless device is automatically transmitted to a base station. The call origination signal contains a request for electronic data transmission services. The wireless device detects whether a reply to the call origination signal has been received from the base station. If a reply has been received, the wireless device detects whether the data service request has been rejected. If the detected reply does not reject the data service request, then an indication of availability of the data service is displayed on the wireless device. If the detected reply does reject the data service request, then an indication of non-availability of the data service is displayed on the wireless device.