Motorola Corporation

Daniel J DeClerck

Keith A TenBrook

Stephen Lee Spear

Charles Philipp Binzel

Barry J Menich

Christopher F Bussan

Thomas W Ritchie

John P Nolting

A method and apparatus is provided that includes equipment for controlling radio link capacity of each of the plurality of compatible radio transmission technologies (,), and equipment (,) for controlling the equipment for controlling radio link capacity of each of the plurality of compatible radio transmission technologies (,) based on a quality metric report (,) that includes information about a quality of radio link between at least one of a plurality of mobile stations and a base station, which provide a global control that effects the way independent equipment (,) and (,) control radio link capacities of their respective transmission technologies.

Method and apparatus for controlling radio link capacity in a communication system

The present invention provides a method for implementing diversity for a dual-mode communication unit in a communication system. The communication system includes a first transceiver utilizing a first air interface and a second transceiver utilizing a second air interface distinct from the first air interface. The system also includes a controller that includes a selector function. The dual-mode communication unit transmits a first copy of bearer data to the first transceiver utilizing the first air interface. The dual-mode communication unit transmits a second copy of the bearer data to the second transceiver utilizing the second air interface. The first transceiver and the second transceiver sending the copy of the bearer data to the controller. The first transceiver and the second transceiver also send a quality metric to the controller. The controller selects a preferred copy of the bearer data based at least in part upon the quality metrics.

Method and apparatus for implementing diversity for a dual-mode

At the beginning of handoff processing at a target base-station, the duplicate message detection mechanism within the layer 2 (L2) signaling layer is disabled such that the target base-station processes all received messages. When the target base-station receives and processes a Handoff Completion message, the target base-station resets all of it's duplicate detection flags to the L2 state at the start of a communication (call) except for the Handoff Completion message itself. The acknowledgment sequence number within L2 is then set to the message sequence number sent within the received Handoff Completion message. Since L2 synchronization is provided when the acknowledgment sequence number and the message sequence number are common, all acknowledgments via L2 are sent after hard handoff is completed.

Method and apparatus for providing synchronization during hard handoff

Generally stated, a method for performing soft-handoff within a wireless communication system 100 is described herein. The wireless communication system 100 includes, inter alia, a mobile station 104, a first base station 102 in communication with said mobile station via a first communication resource 120, and a second base station 106 with a corresponding second communication resource 130. In a first preferred embodiment, a determination is made that the first communication resource 120 is no longer necessary. The wireless communication system 100 verifies that the second base station 106 has acquired the mobile station 104 via the second communication resource 130. If the second base station 106 has yet to acquire the mobile station 104 on the second communication resource 130, the wireless communication system 100 will override the normal power control mechanisms, increasing the mobile station's 104 transmit power, thereby mitigating the opportunity for an orphan condition to develop.

Method and apparatus for performing soft-handoff in a wireless

Speech of an unknown amount and control message data (150) of known amount are multiplexed so that the coded voice data is transmitted before the elapse of a predetermined number of frames. A variable rate vocoder (110) receives and codes the speech of an unknown amount at one of full and less than full rates to produce the coded voice data. A multiplexer (120) receives the coded voice data from the variable rate vocoder (110) and sends frames containing the coded voice data when the variable rate vocoder operates at a full rate. When the variable rate vocoder (110) operates at a less than full rate, the multiplexer (120) sends frames containing portions of the message data together with the coded voice data. However, when the number of frames remaining before a predetermined number of flames has been sent is the minimum number of frames necessary to send remaining of the control message data (150) together with the coded voice data at less than full rate, the variable rate vocoder (110) is forced to a voice coding rate lower than full rate. The lower than full rate voice coding of the variable rate vocoder (110) reduces the amount of coded voice data to send in a frame and makes space in the frame to send remaining of the control message data (150) together with the coded voice data.

Method and apparatus for multiplexing fixed length message data and

A radio transceiver (119) including a transmitter (111), a receiver (107), and a controller (113). The controller (113) creates a fixed period reference signal (201) and a second reference signal (203) which has a variable delay in time from the fixed period reference signal (201). In addition the controller (113) creates a plurality of control signals used to control parts of the transceiver (119) and which are time dependant upon the second reference signal 203). Therefore, the adjusting of the variable delay of the second signal subsequently adjusts the plurality of control signals.

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Algonquin, IL, United States of America

Daniel J DeClerck