Motorola Corporation

Motorola Mobility LLC

Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Mototola, Inc.

Philip J Fleming

John McFarland Harris

Michael D Kotzin

Ivan Vukovic

Ronald Thomas Crocker

Jay P Jayapalan

Chandrasekar Sankaran

Aleksandr L Stolyar

Sean Michael McBeath

Eugene Visotsky

Sean S Kelley

Stephen Lee Spear

Shirish Nagaraj

Irfan Ali

Rangsan Leelahakriengkrai

Stanley J Benes

Joseph Alan Tobin

Robert S Nikides

Michael Honig

Yehuda Luz

Yiannis Argyropoulos

Rajest Pazhyannur

Daniel De Clerck

The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for a power control (e.g., at least for DL power control) in a cell using a concept of a relative load in a network such as a wireless network. The relative load may be a ratio of cell's own load relative to an average load in a cluster of neighboring cells for scaling a nominal power value (or a function of the power value). The load can be measured, for example, either as a number of UEs in the cell, a RB utilization in the cell, a DL information traffic in the cell, or any other metric that's representative of the load in the cell. The resulting computed power for a DL signaling can be either on a per cell basis or on a per UE basis.

Downlink power control using relative load

The specification and drawings present a new method, apparatus and software related product for antenna clustering for multi-antenna aperture selection (MAAS), e.g., in LTE wireless systems, using multi-core DSP processing with sub-optimum selection of N out of M of antenna signals and minimizing the performance degradation due to the sub-optimal antenna/antenna signal selection. Assigning each DSP core (machine) to N/K antennas (i.e., to antenna signals) having a similar property (e.g., polarization) and a same tier, the selection of N out of M using a predefined criterion (e.g., best SINR) is reduced to selecting N/K out of M/K which reduces the computation complexity by a factor of K, where K is a number of the DSP cores.

Antenna clustering for multi-antenna aperture selection

A method, a network base station, and a user communication device for transmitting control data are disclosed. A processormay encode a rescue frameof a set of frames with a higher rescue overhead to data ratio. The processormay encode an ancillary frameof the set of frames with a lower rescue overhead to data ratio. A transceivermay transmit the set of frames.

Method for efficiently increasing hand-off and access reliability

An apparatus and method for fractional frequency reuse in a communication system. The method includes a first stepof partitioning a sub-frame into resource partitions, wherein at least one resource partition has frequency reuse of one and all other resource partitions have frequency reuse greater than one. A next stepincludes scheduling resources for a mobile station in a sector in each resource partition used by that sector.

Fractional frequency reuse in a communication system

A method and apparatus for reducing overhead for signaling where the method includes sending a user bit map field () for initiating assignment of users to resources corresponding to bit positions in a resource bit map field (), and sending the resource bit map field wherein the resource bit map field is a message indicating which resources are assigned to mobile stations. The method and apparatus include sending an indicator bit () wherein the indicator bit indicates one of a portion of the user bit map field is being used for purposes other than initiating assignment of users to resources corresponding to bit positions in a resource bit map field and a portion of the resource bit map field is being used purposes other than indicating which resources are assigned to mobile stations ().

Method and apparatus for reducing overhead for signaling

During the course of a push-to-talk talkgroup wireless communication, decisions () are made regarding possible subsequent push-to-talk communication needs for the group. Based at least in part upon such decisions, a network location is identified () to provide talker arbitration support for this talkgroup. In one embodiment the identified network location can comprise a mobile station, such as a mobile station that comprises a member of the talkgroup. In a preferred embodiment, the talker arbitration capability is then assigned () to the identified network location.

Talker arbitration method and apparatus

An interconnect communication system is provided that provides for dispatch-type services including Instant Access call set up, talkgroup creation and management, and in-band floor arbitration and mode switching that employ in-band signaling tones. By providing talkgroup creation and management and in-band floor arbitration that are transparent to the underlying network, the talkgroup creation and management and in-band floor arbitration may be implemented in a legacy system without the need to modify the network and regardless of the type of network employed. Furthermore, by providing Instant Access call set up procedures and mode switching procedures that are capable of utilizing modified versions of known messages, the procedures may be implemented in a legacy system in a simplified manner, minimizing the impact of an addition of such procedures to a legacy network.

Method and apparatus for providing dispatch-type services in a cellular communication system

To address the need for a dispatch mobile () to more quickly make a call, in the preferred embodiment of the present invention those remote units operating in a dispatch mode () will receive a first slot cycle, while those remote units not operating in a dispatch mode () will receive a second slot cycle. The second slot cycle is greater than the first slot cycle, so that those remote units operating in dispatch mode () will 'wake up' during the slot cycle normally utilized for interconnect calls. Because shorter slot cycles are utilized for remote units operating in dispatch mode (), the time it takes to make a dispatch call is greatly reduced. Additionally the minimum slot cycle duration typically used for standard calls remains unchanged, greatly conserving battery life.

Slot cycle assignment within a communication system

A communication system network () having a plurality of servers (-through N), each having a load level based on serving a number of clients (-through M), a method includes grouping plurality of servers (-through N) into a plurality of server groups Gthrough Gk (-through k) respectively having load levels progressively from a least amount of load level to a most amount of load level, calculating a plurality of time periods Tthrough Tk corresponding to the server groups Gthrough Gk, assigning load to a server selected from the servers in the server group Gfrom an initial time until expiration of the time period T, after expiration of each of the time periods Tthrough Tk measured from the initial time, load assignment takes place by assigning load to a server selected from the servers in the server groups from Gand and at least one other server group, in server groups Gthrough Gk, corresponding to an expiring time period.

Load balancing method in a communication network

To address the need for reducing audio overhang in wireless communication systems (e.g.,), the present invention provides for the deletion of silent frames before they are converted to audio by the listening devices. The present invention only provides for the deletion of a portion of the silent frames that make up a period of silence or low voice activity in the speaker's audio. Voice frames that make up periods of silence less than a given length of time are not deleted.

Audio overhang reduction by silent frame deletion in wireless calls

A communication system sorts packets or messages at a base station such that differential delays and absolute delays are reduced, further resulting in less needed memory at the packet selector and reduced jitter. The sorting is based on a packet identifier that is associated with each packet or message, which packet identifier includes data specific to the packet.

Method and apparatus for sorting packets in a communication system

When the user is actively transmitting/receiving or has recently transmitted/received on the RF channel, the user is referred to as being in an 'active' state. Typically, if the user is in the active state, and neither sends nor receives data for a timer period greater than a threshold, then the user is transitioned off of the RF channel (e.g. transitioned from active to dormant). Once a transition to the dormant state has occurred, the continued transmission or re-transmission of data over an RF channel can result in a delay in re-accessing the RF channel. In order to address this problem, the idle-timer threshold is dynamically adjusted based on a communication system statistic to increase system performance.

Method and apparatus for data transmission within a communication system

The method of selecting one of the resources for servicing a call includes determining a load level and a relative load capacity for each of candidate resources. The relative load capacity is based on a ratio of each candidate resource load capacity and total load capacity of all candidate resources. The candidate resource is selected by a relative ranking based on multiplication of each resource with each respective load level and each relative load capacity determination.

Method and apparatus for selecting a resource in a communication system

A controllable playback device is placed in a mobile station (125) which is capable of playing a recorded announcement to the user of the mobile station (125) when activated by the infrastructure equipment of the cellular communication system. The cellular communication system determines if a voice channel is available (506), and if unavailable, an estimate of a retry time period is performed (512). After the estimate of the retry time period, the system forms and sends a message to the mobile station (125) including the retry estimate (515). The mobile station (125) receives the message, and activates the controllable playback device to announce to the user of the mobile station (125) that the system is fully loaded and that an access attempt at a time related to the retry estimate would likely be successful.

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Glen Ellyn, IL, United States of America

Philip J Fleming