Lucent Technologies Inc.

At+t Corp.

John H Baldwin

Subrahmanyam Dravida

Bharat Tarachand Doshi

Sanjiv Nanda

Hong Jiang

Philip Andrew Treventi

Behram H Bharucha

Wassim A Matragi

Helen Chu

A digital cellular/personal communications service (PCS) application incorporates a logical link connection (LLC) server. In this approach, there are two ATM connections in the path of an AAL-2 connection: one between a base station and the LLC Server and the other between the LLC Server and a vocoder group. All LLCs from, or to, a given base station use a common ATM connection irrespective of the vocoder used at the other end. Similarly, all LLCs from, or to, a given vocoder group use a common ATM connection irrespective of the destination base station at the other end. At the LLC Server, LLC packets from many base stations destined for the same vocoder group are extracted and bundled into the ATM connection between the LLC Server and the destination vocoder group. Similar treatment is given to the packets originating at vocoders and destined for base stations. Thus, each ATM connection between a particular base station and the LLC server and each ATM connection between the LLC Server and a particular vocoder group are used to maximum capacity notwithstanding each ATM connection conveys LLCs to different LLC endpoints.

Logical link connection server

A method and apparatus for transmitting and/or receiving variable-length packets (e.g., CDMA packets, CDPD packets) that are associated with different channels and which are multiplexed via a single virtual circuit (e.g., an ATM virtual circuit).

Multi-channel broadband adaptation processing

A method and apparatus for managing a virtual circuit network is disclosed that enables hand-off management. An illustrative embodiment establishes a virtual ciruit by receiving, at a radio port, a virtual circuit identifier from a wireless terminal and attaching the virtual circuit identifier to an OA&M cell. The radio port then transmits, over a pre-established unidirectional virtual ciruit, the OA&M cell to a radio port manager.

Virtual circuit management in cellular telecommunications

A method and apparatus for enabling one or more packets (e.g., CDMA packets, CDPD packets etc.) to be encapsulated into a cell (e.g., an ATM cell, a B-ISDN cell) for transmission and/or reception over a broadband network (e.g., an ATM Channel). An illustrative method includes building a basic control octet for a packet of N bytes, the basic control octet including (1) an additional control bit that indicates if a supplemental control octet accompanies the basic control octet, and (2) a length indicator based on N.

Broadband adaptation processing

A method and apparatus for transmitting and/or receiving packets (e.g., CDMA packets, CDPD packets, etc.) that are associated with different channels and which are multiplexed via a single channel (e.g., an ATM Channel).

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Morristown, NJ, United States of America

John H Baldwin