Abstract: The present invention provides a method is provided for blocking alert messages to mobile units. The method includes determining at least one location of at least one mobile unit based on at least one response to a first page message provided to the at least one mobile unit. The method also includes interrupting transmissions to the at least one mobile unit based on said at least one determined location of said at least one mobile unit.

Abstract: A method is provided for locating an access terminal using paging. The method comprises selecting one of a first and second paging scheme based on a quality of service associated with the access terminal. That is, a resource intensive paging scheme may be employed to locate access terminals that have been assigned a relatively high quality of service, and a slower, less resource intensive, paging scheme may be used when the access terminal has a relatively low quality of service.

Abstract: The present invention may provide a method of communication that includes selecting at least one access channel for transmission of data based on a channel condition. The present invention may also provide a method of communication that includes receiving data over at least one access channel selected for transmission based on a channel condition.

Abstract: In a 3G CDMA2000 IS-2000 wireless communications system, a base station at the border between two packet zones, transmits an Extended System Parameters message that includes the identity of a primary packet zone supported by that base station as well as the identities other secondary adjoining packet zones supported by that base station. When transiting the borders between packet zones, a dormant mobile terminal will not request a reconnection until its current packet zone is no longer listed in the Extended System Parameters message received from the base station in the cell in which it is currently located. Thus, the mobile terminal will not need to repeatedly initiate a reconnection in each packet zone as moves back and forth across packet zone borders. Alternatively, the Extended System Parameters message includes a special value packet zone identity that is interpreted by the receiving mobile terminal to mean “no change.

Abstract: In real-time critical wireless data applications, such as Push-to-talk over Cellular (PoC) or Push-To-Talk (PTT) and Voice-over-IP (VoIP), a user of a PTT mobile station pushes a button to indicate his desire to communicate with a pre-defined group (e.g., a buddy list) of people. This action triggers the PTT mobile station to re-activate a dormant data call connection and request the floor. When one or more of the mobile stations identified in the buddy list responds, a PTT server sends a Grant message to the PTT caller and he/she can start to talk. In one embodiment, the Grant message is sent to the PTT caller before the dormant call is completely reactivated to reduce PTT call setup latency.

Abstract: A push-to-talk over cellular (PoC) system is provided in which a negative indication-to-speak may be delivered to a requesting unit when the requested wireless unit is not available. In one embodiment of the instant invention, a first wireless unit is paged in response to receiving a request from the second wireless unit to transmit a message to the first wireless unit. A page response signal is received from the first wireless unit, and the negative indication-to-speak to the second wireless unit is delivered to the second wireless unit in response to receiving the page response signal.

Abstract: The method described herein is useful in a push-to-talk over cellular (PoC) system to provide an accurate but low-latency indication-to-speak. Generally, the method may be referred to as a page-event confirmed indication-to-speak. The page-event confirmed indication-to-speak accurately confirms a targeted but dormant mobile station is within radio reach by first sending a paging message to the dormant mobile station. When the dormant mobile station responds to the page message, an indication-to-speak is delivered to an initiating mobile station to indicate to the user that he/she may now speak.

Abstract: In a wireless communication system, a method includes monitoring an error condition on an active communication channel, establishing a simultaneous communication channel, and searching the simultaneous communications channel while continuing to monitor the active communication channel.

Abstract: A mobile terminal selects a transmission rate for the reverse common signaling channel in response to at least one mobile-terminal-measured metric that is associated with the RF conditions of the channel. The mobile terminal is provided with information, where the information takes the form of at least one threshold level that the one or more measured metrics are compared with, to determine the rate at which at which the mobile terminal should transmit.