Abstract:
A method and an apparatus granting a terminal, which requests a communication with a network access server using a session of a standard for packet data transmission designated by an identifier, use of the requested session, when a security association between the access terminal and the network access server is verified.
Abstract:
In a communication system for communication of data, a method and apparatus provide for detecting a request for opening a connection for a user for communication data, selecting an open connection, releasing the selected open connection, and allocating, to the user, communication resources corresponding to resources released based on releasing the selected open connection. In accordance with an embodiment, the selected open connection is in an idle open state.
Abstract:
In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
Abstract:
A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile stati on deteriorates before the mobile station (101) has received the handoff direction message. The mobile station maintains a list of base stations that the mobile station (101) is in communication with, referred to as an "Active Set". In addition, the mobile station (101) maintains another list of base stations (300) that are proximate to the base stations (300) in the active set. This list is referred to as the "Neighbor Set". A memory within the mobile station (101) includes information that would allow the mobile statio n (101) to demodulate information transmitted from those base stations (300) o n the neighbor set. In accordance with the disclosed method and apparatus, the mobile station (101) places a base station (300) in the active set upon including the base station (300) in a pilot strength measurement message (PSMM).
Abstract:
A "time multiplexed" transmission scheme capable of reducing the amount of interference from other cells operated at the same frequency band. Each cell of a system transmits in designated time intervals (e.g., time slots) during which other interfering cells may be prevented from transmitting. By temporarily "blanking" transmissions from interfering cells during the designated time slots, the amount of interference from these cells is reduced. The improved signal quality may support transmission at a desired or higher data rate, which may not be possible without cell blanking. In one variant, transmissions from the cells are staggered over different time slots. A set of one or more cells may be designated to transmit in each of a number of slot phases. The cells transmit in a staggered manner on theses phases to reduce interference. The transmission scheme may be used for a various channel types (e.g., a control channel) and applications.
Abstract:
In a wireless communication system (32) a method for high data rate transmission aggregates information signals processed by at least two modems (38, 40, 42), wherein the modulated information signals are transmitted using two carrier frequencies. The method provides multiple data transmissions concurrently over a broad bandwidth consistent with single transmission air-interface standards. An apparatus, mobile unit (34), includes a multi-link (ML) protocol processor (36) that aggregates the information signals from the modems modems (38, 40, 42) into a point-to-point protocol (PPP) format for interface with conventional data-based systems, such as the internet. The ML processor (36) further receives an aggregate bundle and separates the bundle into its constituent parts for modulation by the modems (38, 40, 42).