Alcatel-Lucent

About: Alcatel-Lucent is a based out in Stuttgart, Germany. It is known for research contribution in the topics: Signal & Network packet. The organization has 37003 authors who have published 53332 publications receiving 1430547 citations. The organization is also known as: Alcatel-Lucent S.A. & Alcatel.

Data link layer quality of service for UMTS

Abstract: A Data Link Layer (DLL) (20) protocol for direct support of the Internet Protocol (IP) networking in the Universal Mobile Telecommunications System (UMTS) (100), is provided. The disclosed Data Link Layer (20) comprises a Radio Link Control (RLC) (70) sublayer and a Medium Access Control (MAC) (80) sublayer. At a transmit end, as well as at a receiving end of the UMTS wireless system (100), a plurality of Quality of Service (QoS) planes (1...n) are created according to IP QoS requirements. At the RLC level, each QoS plane (1...n) comprises a Data-RLC (14-1,..., 14-n) and a Control-RLC (12-1, ..., 12-n). The QoS planes (1...n) are optimized to handle the QoS requirements of a corresponding Class of Service (CoS). At the transmitting end, the data packets received from the upper layers are directed to a QoS plane according to the particular QoS information they contain, and processed according to their particular QoS requirement. A Segmentation, Concatenation, and Reframing module (SCR) is used to generate variable size RLC frames (77; 77'), including multiframing. The variable size RLC frames (77; 77')are transmitted to the MAC sublayer (80) using logical channels (15). At the MAC sublayer (80), the RLC frames (77; 77') are multiplexed onto transport channels (25) based on their QoS requirements and transmitted to the physical layer for propagation to the receiving end.

A Multidimensional Framework for Understanding Outsourcing Arrangements

Abstract: SUMMARY The growth of outsourcing has resulted in numerous different outsourcing arrangements, ranging from out-tasking and managed services to business process outsourcing and transformational outsourcing. The growing lexicon of outsourcing terminology has caused confusion for many managers and academicians alike, who tend to view outsourcing as a fixed, discrete event or a simple make-or-buy decision. In reality, outsourcing is an umbrella term that includes a range of sourcing options that are external to the firm. Understanding these options, their characteristic differences, and how they serve to meet differing business objectives is the focus of the current research. Based on in-depth interviews with 19 senior executives experienced in outsourcing, as well as a thorough synthesis of available research, this article provides a framework clarifying the broad spectrum of outsourcing arrangements, and their inherent risks and advantages. Managerial guidance related to outsourcing is also provided.

Analysis, ranking and selection of R&D projects in a portfolio

Abstract: A method for the analysis, ranking and selection of R&D projects from a portfolio is outlined and demonstrated. It is proposed that an objective multi-criteria decision making method, Data Envelopment Analysis (DEA), be used to split a portfolio of projects into accept, consider further and reject sub-groups. Next, the ‘consider further’ group is examined using a subjective method, the Value Creation Model. Such an approach allows for obvious decisions to be automated and complex decisions to be given careful consideration, an approach that is more consistent with how practising managers actually make select/reject decisions. DEA allows for comparison of variables without requiring weights or conversion factors. The relation between research strategy and consideration of categorical data is considered in relation to the research portfolio of the Advanced Technology Division of Bell Laboratories.

BURG: fast optimal instruction selection and tree parsing

Abstract: 1 Overview BURG is a program that generates a fast tree parser using BURS (Bottom-Up Rewrite System) technology. It accepts a cost-augmented tree grammar and emits a C program that discovers in linear time an optimal parse of trees in the language described by the grammar. BURG has been used to construct fast optimal instruction selectors for use in code generation. BURG addresses many of the problems addressed by TWIG [AGT89, App87], but it is somewhat less flexible and much faster. BURG is available via anonymous ftp from kaese.cs.wisc.edu. The compressed shar file pub/burg, shar. Z holds the complete distribution. This document describes only that fraction of the BURS model that is required to use BURG. Readers interested in more detail might start with Reference [BDB90]. 2 Input BURG accepts a tree grammar and emits a BURS tree parser. Figure 1 shows a sample grammar that implements a very simple instruction selector. BURG grammars are structurally similar to YACC's. Comments follow C conventions. Text between \"%{\" and \"%}\" is called the configuration section; there may be several such segments. All are concatenated and copied verbatim into the head of the generated parser, which is called BURM. Text after the second \"%%\", if any, is also copied verbatim into BURM, at the end. The configuration section configures BURM for the trees being parsed and the client's environment. This section must define NODEPTR_TYPE to be a visible typedef symbol for a pointer to a node in the subject tree.

Electronic audio communications system with versatile message delivery

Abstract: An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both users and non-users with limited access provided to the non-user under the control of the user. A Voice Message System (10) interconnects multiple private exchanges (12) of a subscriber with a central telephone office (22). Individual subscriber users may access the Voice Message System (10) through ON NET telephones (18) or OFF NET telephones (24). Selected non-users may be allowed access through the OFF NET telephones (24), the scope of the access of the selected non-users being determined by a subscriber user. The Voice Message System (10) includes an administrative subsystem (60), call processor subsystem (62) and a data storage subsystem (64). The Voice Message System (10) enables the user to deposit a message in data storage subsystem (64) for automatic delivery to other addresses connected to the system and to designate the message for priority transmission. The recipient is able to redirect the message from a message originator to a second recipient and the second recipient can re-redirect it to a third recipient. The Voice Message System (10) also enables a user to access the system to determine if any messages have been in data storage subsystem (64) for him. Prerecorded instructional messages are deposited in the data storage subsystem (64) for instructing a user or a selected non-user on their progress in using the system.