Motorola Mobility LLC

Motorola Corporation

Chih-Ming J Chiang

Daniel Richard Tayloe

Mark T Pflum

Mark H Kaya

Jonathan Henry Gross

Zaigham A Kazmi

A method and apparatus for controlling interference in a wireless communication system includes a first step of performinga handoff measurement of a signal parameter for a current site and for nearby sites, and performinga comparison of the signal parameters to select the nearby site having the strongest signal parameter. A next stepincludes defining a target maximum allowable noise rise for the selected nearby site. A next stepincludes calculating an upper bound for at least one operating parameter in the current site. A next stepincludes determining whether a maximum for the at least one operating parameter exceedsthe upper bound. A next stepincludes constraining the at least one operating parameter to no more than the upper bound if the maximum for the at least one operating parameter exceeds the upper bound.

Controlling interference in a wireless communication system using a parameter upper bound based on a maximum allowable noise rise

A method and information processing system are provided for dynamically encoding a control channel for transmitting messages to a wireless device based on performance capability information associated with the wireless device. The method includes determining that a wireless device () has registered with a base station (). A device profile () associated with the wireless device () is retrieved from a register (). A set of performance capabilities associated with the wireless device is determined () in response to the retrieving. A coding type for a control channel for sending messages to the wireless device () is determined () based on the set of performance capabilities associated with the wireless device ().

Increasing system capacity via utilization of end user equipment knowledge

A method and Node B are disclosed for allocation of 'sticky' resources in an Orthogonal Frequency Division Multiplexing communication system. The Node B comprises a scheduler that is configured to make a sticky resource allocation to a user equipment, determine that a transmit power level allocated for transmissions to the user equipment should be adjusted, determine whether the resources allocated to the user equipment comprise a Quadrature Phase Shift Keying (QPSK) modulation scheme, and in response to determining that the resources allocated to the user equipment comprise a QPSK modulation scheme, adjust the allocated transmit power level without informing the user equipment of the adjustment. The Node B further may condition the determination to adjust the allocated transmit power level without informing the UE of the adjustment based on a size of the adjustment.

Method and apparatus for resource allocation in an orthogonal frequency division multiplexing communication system

Controlling interference in a wireless communication system

A method, device and computer-readable storage element for dynamically changing a maximum access channel rate at a site in a communication system. The method includes setting a maximum access channel rate for an access channel at a site, which comprises a coverage area for a base station. The method further includes determining a first access probe success rate that measures a rate at which first attempt access probes sent from the terminals on the access channel are received, and changing the maximum access channel rate based on the first access probe success rate.

Method and apparatus for dynamically changing a maximum access channel rate

A CDMA system according to an embodiment of the invention employs a technique for power optimized user loading that obtains a desired allocation of different radio configuration calls. The technique takes advantage of the relatively low power requirements of RC3 calls for low load conditions, while increasing the number of RC4 calls for high load conditions. As the load increases, the system determines a target combination of RC3 and RC4 calls based upon the current average power per link measurements for RC3 and RC4 calls, and based upon the power limitations of the system. The technique strives to maximize the capacity of the system while maintaining operation below the overall power limit.

System and method for managing CDMA communication system capacity using power-based metrics

A CDMA system according to an embodiment of the invention employs a technique for power optimized user loading that obtains a desired allocation of different radio configuration calls. The technique takes advantage of the relatively low power requirements of RC3 calls for low load conditions, while increasing the number of RC4 calls for high load conditions. As the load increases, the percentage of RC4 calls increases while the percentage of RC3 calls decreases. The technique strives to minimize overall power consumption in the system for all call load conditions, by maximizing the number of RC3 calls at any given time while keeping Walsh code resources available for both new calls and hand-in traffic.

System and method for power-optimized user loading of a CDMA communication system

A mobile unitwhich is in a soft handoff conditionwith a base station () has the power transmitted by the base station () on the mobile link () controlled. The base station () determines () when a frame erasure count reaches a particular level N. The base station then places this link in a clamped state () at minimum power. When the base station determines that M consecutive good frames have been received (), the base station restores the link () to a normal state (). A recovery arrangement (and) prevents clamping by all base stations () and loss of the link.

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Chandler, AZ, United States of America

Chih-Ming J Chiang