Patent application number | Description | Published |
20100278103 | SYSTEM AND METHOD FOR ADAPTIVE CONTROL OF AN AVERAGING PARAMETER FOR PCINR AND RSSI - A system and method for adaptive control of an averaging parameter in a communications network may include an averaging parameter adaptive control module (APAC) that is associated with a base station and that includes one or more processors configured to generate a first averaging parameter that is transmitted by the base station to a mobile station communicating with the base station. The mobile station may use the first averaging parameter to generate first channel condition information that indicates a condition of a communication channel. First feedback information including the first channel condition information may be received at the base station. The APAC may generate a second averaging parameter using the first averaging parameter and the first feedback information and may transmit the second averaging parameter from the base station to the mobile station, thereby adaptively controlling the second averaging parameter based on the first feedback information. | 11-04-2010 |
20100278160 | SYSTEM AND METHOD FOR HYBRID SCHEMES OF MIMO MODE DECISION - A system and method a hybrid scheme of mode decision in a network having a plurality of mobile stations communicably coupled to a base station may include a mode decision module associated with the base station. The mode decision module may include one or more processors configured to select a first mode configuration for use during transmission of a first communication from the base station, receive first feedback information comprising a first mode recommendation and first channel information, identify a first system state of the first communication based at least in part on the first condition information, determine whether to use the first mode recommendation configuration based at least in part on the first system state, and configure the second communication using a second mode configuration based on the determination. | 11-04-2010 |
20100281322 | SYSTEM AND METHOD FOR DYNAMIC HYBRID AUTOMATIC REPEAT REQUEST (HARQ) ENABLE/DISABLE - A system and method of increasing data throughput in a wireless communications network between a base station (BS) and one or more mobile stations (MS) includes establishing a service flow (SF) and initially enabling a hybrid automated repeat request (HARQ) protocol; determining, at a particular time, the measure of quality of the communications channel; comparing the determined measure of quality with a predetermined channel quality threshold; and selectively disabling the HARQ protocol based upon a first comparison result while continuing the SF between the BS and MS. In other aspects, after selectively disabling the HARQ protocol, the method further includes determining that the time-varying measure of quality of the communications channel has deteriorated below the predetermined channel quality threshold; and selectively re-enabling the HARQ protocol in the established SF. | 11-04-2010 |
20110010771 | DETECTING A DENIAL OF SERVICE ATTACK - A plurality of ranging processes are performed to monitor a status of a wireless link associated with a device identifier. A ranging request that includes the device identifier and a message skip indicator is received. It is determined that the device identifier is already associated with the wireless link. A duration since a previously completed ranging process is determined. Based on the duration, and the message skip indicator, it is determined whether to respond to the ranging request. | 01-13-2011 |
20110026454 | WIRELESS COMMUNICATION SYSTEM - A method of operating a communication system comprises exchanging initial communications between a wireless communication device and a communication network over a wireless connection between the wireless communication device and a network access system and over a network connection between the wireless device and the communication network. The method further comprises, in response to a loss of the network connection due to a deterioration of the wireless connection, determining if a partial network entry process is possible to regain the connection, and if the partial network entry process is possible to regain the network connection, performing the partial network entry process. The method further comprises, in response to an improvement of the wireless connection and upon regaining the network connection, exchanging new communications between the wireless communication device and the communication network over the wireless connection and the network connection. | 02-03-2011 |
20110026455 | WIRELESS COMMUNICATION SYSTEM - A method of operating a communication system comprises exchanging initial communications between a wireless communication device and a communication network over a wireless connection between the wireless communication device and a network access system and a network connection between the wireless communication device and the communication network. The method further comprises performing a plurality of ranging processes to monitor a status of the wireless connection. Upon successfully completing a ranging process of the plurality of ranging processes, the method comprises determining a duration elapsed since the last successful ranging process and processing the duration to determine if the duration satisfies a criteria. The method further comprises, if the duration does not satisfy the criteria, then setting the indicator to indicate that a partial entry process is required to regain the network connection, and in response to the deterioration of the wireless link, processing the indicator to determine if the partial network entry process is required to regain the network connection. | 02-03-2011 |
20110034193 | CHANNEL CONDITION BASED SIGNAL QUALITY FEEDBACK BANDWIDTH ALLOCATION - A first amount of bandwidth is allocated to a first wireless device to send signal quality information to a base station. Based on a first indicator of wireless link conditions associated with the first wireless device, and a second indicator of wireless link conditions associated with a second wireless device, a second amount of bandwidth is allocated to the first wireless device to send signal quality information to the base station. | 02-10-2011 |
20110038324 | SYSTEM AND METHOD PROVIDING VARIOUS PILOT SUB-CARRIER DENSITIES IN OFDMA COMMUNICATIONS - A method for varying pilot sub-carrier density in OFDMA communications is described. The method comprises calculating channel quality from sub-carriers; determining whether the channel quality is outside a threshold range; selecting a different pilot sub-carrier density for a sub-zone based on the value of the channel quality when the channel quality is outside the threshold range; and setting the sub-zone to the different pilot sub-carrier density. A system for using sub-zones with different pilot sub-carrier densities in OFDMA communications is also described. | 02-17-2011 |
20110255428 | SYSTEM AND METHOD FOR COMBINED MAC LEVEL MESSAGE WITH CQI CHANNEL CONTROL MESSAGE FOR CHANNEL FEEDBACK REPORT - In one or more embodiments, a system and method of managing network channel quality in a wireless communications network includes reporting a channel quality measurement from the particular user to a base station (BS) over an available CQICH, and determining a MCS based, at least in part, upon the channel quality measurement. If a threshold network CQICH capacity is reached during a subsequent data frame such that a CQICH is no longer available, MAC level messages are generated between the BS and the particular user to trigger reporting of signal quality information to the BS by the particular user. After the next CQICH cycle commences and if a CQICH is still unavailable, the signal quality information is continued to be provided via MAC level messages. Otherwise, a CQICH is reallocated for a particular user and channel quality measurement reporting is transitioned back to the CQICH. | 10-20-2011 |
20120014488 | METHOD AND SYSTEM FOR MANAGING WIRELESS LINKS IN A COMMUNICATION NETWORK - A method of operating a communication system comprises establishing a wireless device release time interval for a wireless device release timer at an access node upon establishing an initial network connection between a wireless device and the access node. An initial synchronization process is performed between the wireless device and the access node. The method continues with the access node sending an unsolicited synchronization message to the wireless device and starting the wireless device release timer. A second synchronization process is performed and upon successful completion of the second synchronization process, a success status synchronization response message is sent by the access node to the wireless device. The access node receives a synchronization confirmation message from the wireless device that comprises an identifier corresponding to the identity of the wireless device and upon receiving the confirmation message, the access node cancels the wireless device release timer. | 01-19-2012 |
20120014489 | METHOD AND SYSTEM FOR MAINTAINING WIRELESS LINKS IN A COMMUNICATION NETWORK - A method of operating a communication system comprises sending a frame by an access node to a wireless device where the frame comprises a packet. A counter is initialized and a timer for each frame is initiated. The method continues with the access node determining if a response associated with the packet is received before the expiration of the timer. If the response is received prior to the expiration of the timer, the counter and the timer are reset. If a response is not received prior to the expiration of the timer, the counter is incremented. Upon the counter meeting a criteria of a certain quantity of lost packets, the access node performs a synchronization process. | 01-19-2012 |
20120020202 | METHOD AND SYSTEM FOR SYNCHRONIZING WIRELESS DEVICES WITH A COMMUNICATION NETWORK - A method of operating a communication system comprises performing a plurality of ranging processes to establish a network connection over a wireless link. A time interval is established for a wireless device timer at the wireless device upon establishing the network connection and a time interval is established for an access node timer at the access node upon establishing the network connection. The method also comprises establishing a communication session over the wireless link and network connection. When a repeat request acknowledgement message is received during the communication session, the time interval for the wireless device timer and the time interval for the access node timer is restarted. | 01-26-2012 |
20120195241 | SYSTEM AND METHOD FOR UPLINK POWER CONTROL - In various embodiments, a system and method for providing uplink (UL) power control for a wireless mobile station (MS) includes, after transmission of an unanswered bandwidth request by the MS, incrementally boosting an UL transmit power of one or more subsequent bandwidth requests by the MS to a boosted UL power level at which UL bandwidth is allocated to the MS by the BS; selectively reporting the boosted UL power level to the BS immediately after the UL transmit power has been boosted; and selectively controlling the boosted UL power level by the BS responsive to the boosted UL power level reported to the BS. A MS is configured to carry out the UL power control method and a BS is configured to generate MS UL power control commands based, at least in part, upon the UL power level reported to the BS. | 08-02-2012 |
20120238315 | SYSTEMS AND METHODS FOR PERFORMING HANDOVER CANCELLATION - Systems and methods for performing handover cancellation in a wireless communication system are provided. According to an aspect of the invention, a mobile station requests bandwidth from a serving base station for the mobile station to send a handover cancellation request message to the serving base station. The mobile station then receives an allocation of the requested bandwidth from the serving base station, and sends the handover cancellation request message to the serving base station via the allocated bandwidth. The mobile station requests the bandwidth after a disconnect time and before a resource retain time. | 09-20-2012 |
20120239998 | APPARATUS AND METHOD FOR DETERMINING NUMBER OF RETRANSMISSIONS IN A WIRELESS SYSTEM - An apparatus and method of configuring a number of retransmissions for an automatic repeat request (ARQ) scheme (e.g., hybrid ARQ) includes configuring one or more first maximum retransmission numbers based on respective one or more first predetermined values and independent of a second maximum retransmission number. The first maximum retransmission numbers may indicate a maximum number of retransmissions related to respective service flows operational with the base station. The second maximum retransmission number may indicate a maximum number of retransmissions related to control messages transmitted in the wireless network, and may be configured based on a second predetermined value. The configuration of the first maximum retransmission numbers may include the maximum retransmissions numbers associated with a specific user in communication with the base station. Further, at least one of the first maximum retransmission numbers of a particular user may be reconfigured to a third predetermined value. | 09-20-2012 |
20120275388 | SYSTEM AND METHOD FOR ADAPTIVE CONTROL OF AN AVERAGING PARAMETER FOR PCINR AND RSSI - A system and method for adaptive control of an averaging parameter in a communications network may include an averaging parameter adaptive control module (APAC) that is associated with a base station and that includes one or more processors configured to generate a first averaging parameter that is transmitted by the base station to a mobile station communicating with the base station. The mobile station may use the first averaging parameter to generate first channel condition information that indicates a condition of a communication channel. First feedback information including the first channel condition information may be received at the base station. The APAC may generate a second averaging parameter using the first averaging parameter and the first feedback information and may transmit the second averaging parameter from the base station to the mobile station, thereby adaptively controlling the second averaging parameter based on the first feedback information. | 11-01-2012 |
20130070629 | SYSTEM AND METHOD FOR DYNAMIC HYBRID AUTOMATIC REPEAT REQUEST (HARQ) ENABLE/DISABLE - A system and method of increasing data throughput in a wireless communications network between a base station (BS) and one or more mobile stations (MS) includes establishing a service flow (SF) and initially enabling a hybrid automated repeat request (HARQ) protocol; determining, at a particular time, the measure of quality of the communications channel; comparing the determined measure of quality with a predetermined channel quality threshold; and selectively disabling the HARQ protocol based upon a first comparison result while continuing the SF between the BS and MS. In other aspects, after selectively disabling the HARQ protocol, the method further includes determining that the time-varying measure of quality of the communications channel has deteriorated below the predetermined channel quality threshold; and selectively re-enabling the HARQ protocol in the established SF. | 03-21-2013 |
20130315148 | SYSTEM AND METHOD FOR ADAPTIVE CONTROL OF AN AVERAGING PARAMETER FOR PCINR AND RSSI - A system and method for adaptive control of an averaging parameter in a communications network may include an averaging parameter adaptive control module (APAC) that is associated with a base station and that includes one or more processors configured to generate a first averaging parameter that is transmitted by the base station to a mobile station communicating with the base station. The mobile station may use the first averaging parameter to generate first channel condition information that indicates a condition of a communication channel. First feedback information including the first channel condition information may be received at the base station. The APAC may generate a second averaging parameter using the first averaging parameter and the first feedback information and may transmit the second averaging parameter from the base station to the mobile station, thereby adaptively controlling the second averaging parameter based on the first feedback information. | 11-28-2013 |
20140036743 | WIRELESS NETWORKS, DEVICES AND METHODS THAT ESTABLISH ASYMMETRIC FREQUENCY DIVISION DUPLEX (FDD) LINKS USING A DOWNLINK FREQUENCY CARRIER AND MULTIPLE UPLINK FREQUENCY CARRIERS - A node of a wireless network is configured to arrange a frequency division duplex communications link from the node to a user equipment using a downlink frequency carrier having a downlink frequency bandwidth, and from the user equipment to the node by selectively using either a first uplink frequency carrier having a first uplink frequency bandwidth or a second uplink frequency carrier that is spaced apart in frequency from the first uplink frequency carrier and having a second uplink frequency bandwidth. The first uplink frequency carrier may initially be assigned to the user equipment, and the user equipment may be subsequently selectively handed over the second uplink frequency carrier, while continuing to use the downlink frequency carrier. Related nodes, user equipment and operating methods are described. | 02-06-2014 |
20140036837 | SYSTEM AND METHOD FOR COMBINED MAC LEVEL MESSAGE WITH CQI CHANNEL CONTROL MESSAGE FOR CHANNEL FEEDBACK REPORT - In one or more embodiments, a system and method of managing network channel quality in a wireless communications network includes reporting a channel quality measurement from the particular user to a base station (BS) over an available CQICH, and determining a MCS based, at least in part, upon the channel quality measurement. If a threshold network CQICH capacity is reached during a subsequent data frame such that a CQICH is no longer available, MAC level messages are generated between the BS and the particular user to trigger reporting of signal quality information to the BS by the particular user. After the next CQICH cycle commences and if a CQICH is still unavailable, the signal quality information is continued to be provided via MAC level messages. Otherwise, a CQICH is reallocated for a particular user and channel quality measurement reporting is transitioned back to the CQICH. | 02-06-2014 |
20140254496 | Methods and Devices for Allocating Resource Blocks in an LTE Network - Resource blocks in a Long Term Evolution (LTE) network may be allocated by determining a maximum number of user equipments (UEs) in the LTE network that are permitted to transmit in a time period using a given resource block. This maximum number of UEs may be determined according to an upper limit on the overall transmission power in the LTE network for the given resource block. The given resource block may be allocated in the time period to up to the maximum number of UEs based on each UE's geographic location within the network. Related systems, methods, and devices are disclosed. | 09-11-2014 |