Motorola Corporation

Robert Davis Battin

John McFarland Harris

Lee Michael Proctor

Douglas J Newlin

Tyler A Brown

Stephen Lee Spear

Timothy M Burke

Thomas Wayne Lockhart

Ajoy Kumar Singh

Dan Zhang

Rajeev Ranjan

Robert W Lancelot

Roger Theriault

A method, apparatus and system for accurately identifying discontinuous transmissions (DTX) and enabling the utilization of a dedicated control channel (DCCH) by determining if the frame satisfies a quality check, analyzing at least a portion of bits within the frame if the frame does not satisfy the quality check, determining if the bits analyzed exceed a threshold and identifying the frame as a DTX if the bits fail to exceed the threshold. Some embodiments further count a number of zero bits in a tail end of the frame, determine if the number of zero values exceed the threshold, determine if the frame includes an expected sequence of bits if the number of the zero bits does not exceed the threshold, and identify the frame as the DTX if the frame does not include the expected sequence.

Method, apparatus and system for use in controlling transmission power during wireless communication

An idle frame counter is not reset after retransmission of a data frame. Additionally, if a non-acknowledgment (NAK) is received for the last data frame sent, then no more idle frames are transmitted. Finally, an Idle Acknowledgment (ACK) is transmitted when an idle frame has been received with a sequence number equal to the sequence number of the next new data frame expected.

Method and apparatus for transmitting and receiving data

To address the need for a communication infrastructure and method for preserving bandwidth when IP messaging is used, the present invention provides for the transmission of information without an IP header and for the subsequent generation of such a header as a message is processed by the infrastructure.

Communication infrastructure and method to preserve communication link bandwidth in a packet communication session

A communication system distributes the functions of a socket abstraction layer of the prior art between a socket abstraction layer included in an client communication device, such as a mobile subscriber, and a socket abstraction layer in a an agent communication device, such as an infrastructure serving the mobile subscriber. By so distributing the functions of the socket abstraction layer, headers may be reduced in signaling between the client communication device and the corresponding agent communication device as part of call set ups and tear downs and in the exchange of payloads between the client and agent communication devices. By reducing the required headers, overhead is reduced and bandwidth is conserved in communications between the client and agent communication devices, such as in over-the-air communications between a mobile subscriber and an infrastructure serving the mobile subscriber, with resulting increases in system capacity and improvements in system efficiency.

Method and apparatus for transmitting data in a communication system

A method of performing a modified RLP that reduces the transmission delay in a communications system by detecting frame erasures when they occur. The modified RLP method requests retransmission of erased frames based on pattern violations instead of sequence number violations. The method is preconditioned to expect a particular repeating pattern of frame delivery. For a system running a VSELP vocoder, the method in a receiving device expects to receive full rate or data (F) and DTX (D) frames in a repeating pattern FFDFFDFFD. For a system running an AMBE vocoder, the method in a receiving device expects to receive frames in a repeating pattern DFDFDFDD. The method detects when the pattern is violated and in desired instances immediately requests retransmission of the expected frame.

Method for implementing a modified radio link protocol

A typical radio frame ( ) comprises A, B, and C vocoded bits ( ). At the end of each frame ( ) A and B bits ( ) are inserted from a previous frame. Thus, each frame not only comprises A, B, and C bits ( ) for that frame, but also comprises those A and B bits ( ) originally transmitted in a prior frame. Thus, each frame comprises high and low priority vocoded bits ( ) from the current vocoder frame, and those higher priority bits from a preceding frame ( ). By placing an inner CRC ( ) around the most important bits of the vocoded frame, even though a frame is erased (e.g. its outer CRC ( ) failed) it can still be verified that the most important bits in the vocoded frame are correct. Since the class B and C bits can tolerate some errors, the vocoded frame can then play out if its inner CRC passes.

Method and apparatus for transmitting voice information

A query (160) is sent from a browser (100, 101) to a proxy (300) directed to an information source (140) in a networked data communications system. In one aspect, the query is modified by the proxy to provide a modified query and the modified query is forwarded to the information source (120). A response (170) is received at the proxy from the information source and forwarded to the browser. In another aspect the response is modified by the proxy to provide a modified response (370) which is forwarded to the browser. The proxy (300) has a proxy configuration database (340) including a file (341) of services identifying a method of filtering for a specified browser (100) and filters (302, 304) for filtering responsive to the file of services, respectively, queries from and responses to the specified browser. The method of filtering may vary or be modified, for example, according to attributes of the URL within the query, proxy attachment point (310) for the browser, response content, or changing browser requirements, as user, device, or network service needs change.

Proxy host computer and method for accessing and retrieving information

An apparatus and method are provided for multimedia communications with multiple network functionality, such as conflict resolution for multiple simultaneous communication sessions involving separate and independent networks and call types, such as video and voice. The apparatus includes a first network interface, such as a cable interface (120), an ISDN interface (125) or a telephony interface (130), with the first network interface coupleable to a first network for communication of a first network signal; a second network interface, the second network interface coupleable to a second network for communication of a second network signal; a user interface such as a user/audio interface (135) for reception of a plurality of control signals; and a processor arrangement (143) responsive through a set of program instructions, when operably coupled, to determine a presence of a first network communication session, to further determine an occurrence of the second network signal, and upon the occurrence of the second network signal during the first network communication session, to provide a distinctive alert to the user interface during the first network communication session indicating the occurrence of the second network signal.

Alerting user engaged in a first communications session on a first

A network interface (105) uses valid identifiers including the DN, SPID and Switch ID to communicate with a PSTN (110) and uses generic identifiers to communicate with customer premise equipment (120) in order to establish an ISDN communication link when the customer premise equipment does not know the DN, SPID, and Switch ID.

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Kildeer, IL, United States of America

Robert Davis Battin