Patent application number | Description | Published |
20110296064 | UPLINK DATA THROTTLING BY BUFFER STATUS REPORT (BSR) SCALING - A technique for uplink data throttling includes buffer status report (BSR) scaling. A target data flow rate may be determined based on at least on condition of a wireless device. The buffer status report may be adjusted to cause the target flow rate and transmitted by the wireless device. The wireless device may then receive a flow control command based on the buffer status report. | 12-01-2011 |
20120176898 | DOWNLINK FLOW CONTROL USING PACKET DROPPING TO CONTROL TRANSMISSION CONTROL PROTOCOL (TCP) LAYER THROUGHPUT - Certain aspects of the present disclosure relate to wireless communications and methods and apparatus for downlink flow control at a user equipment (UE). Aspects generally include monitoring, by a UE, one or more parameters related to the UE, and selectively dropping received packets based on the one or more parameters in order to trigger a rate control mechanism. Selectively dropping received packets may occur at a Packet Data Convergence Protocol (PDCP) layer in order to reduce a corresponding transmission control protocol (TCP) throughput. Accordingly, packets may be selectively dropped prior to reaching an applications processor. | 07-12-2012 |
20130021995 | Power Optimization Using Scheduling Request Delay - Certain aspects of the disclosure relate generally to techniques for managing scheduling requests (SRs) for resources for uplink transmission. For example, certain aspects of the present disclosure relate to a method for wireless communication including determining a transmit opportunity for transmitting SR for uplink resources based, at least in part, on a discontinuous reception (DRX) time cycle. According to certain aspects, a user equipment (UE) may delay transmitting the SR based on the DRX time cycle to prevent repeated interruption of the DRX cycle that may reduce benefits of the power-saving DRX scheme. | 01-24-2013 |
20130039173 | METHODS AND APPARATUS FOR OVERLOAD MITIGATION USING UPLINK TRANSMIT POWER BACKOFF - Certain aspects of the disclosure relate generally to uplink flow control of wireless devices for mitigation of overload issues. A user equipment (UE) may reduce an average transmit power for the uplink channel based on whether an overload metric (e.g., temperature metric) exceeds a threshold value. The UE may perform duty cycling for an uplink control channel when an overactive uplink control channel is a dominating factor in a thermal issue. The UE may further reduce a maximum power transmit limit (MTPL) for one or more uplink channels, such as physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH). | 02-14-2013 |
20130064153 | METHODS AND APPARATUS TO REDUCE POWER CONSUMPTION FOR HARQ DECODING - Certain aspects of the present disclosure may help reduce power consumption by allowing a UE to remain in a low power state by not attempting to decode ACK/NACK transmissions after receiving a positive acknowledgement (ACK). | 03-14-2013 |
20130094472 | METHODS AND APPARATUSES FOR REDUCING VOICE/DATA INTERRUPTION DURING A MOBILITY PROCEDURE - Method and apparatus are provided that may help improve user experience during a media session when a mobility procedure of a user equipment (UE) involved in the session causes disruption in reception of packets. According to certain aspects, upon detecting an event indicating a mobility procedure is likely to occur, the UE may increase size of a buffer used to store packets during the session and/or reduce the rate at which packets are played out from the buffer to reduce service (e.g., voice/data) interruption. | 04-18-2013 |
20130142049 | USING WIRELESS WIDE AREA NETWORK PROTOCOL INFORMATION FOR MANAGING A PERFORMANCE LEVEL OF A PROCESSOR - Methods and apparatuses are provided for managing a performance level of a processing circuit, such as a modem, by making adjustments to one or more operating parameters provided to the processing circuit, such as a voltage supplied to the processing circuit and/or a clock frequency of the processing circuit. The processing circuit is adapted to monitor wireless wide area network (WWAN) protocol information. The processing circuit may adjust at least one operating parameter provided to the processing circuit in response to the monitored wireless wide area network (WWAN) protocol information. | 06-06-2013 |
20130194947 | UE-INITIATED DYNAMIC ACTIVATION AND DE-ACTIVATION OF SECONDARY CARRIERS - Managing of secondary carriers for a multicarrier user equipment (UE) is described in which the UE initiates or provides input for activation and deactivation of selected secondary cells in a carrier aggregation depending on allocation or provisioning of UE radio frequency resources. | 08-01-2013 |
20130201834 | DOWNLINK DATA TRANSFER FLOW CONTROL DURING CARRIER AGGREGATION - Techniques are provided for controlling downlink data transfer during carrier aggregation. For example, a method may control a secondary component carrier downlink (DL) in a wireless communication network using carrier aggregation. The method may include detecting, by a mobile entity, an event indicating a resource constraint at the mobile entity related to a data transmission from a base station to the mobile entity on a secondary component carrier of a carrier aggregation enabled connection. The method may include, in response to detecting the event, controlling the data transmission by signaling a status of the secondary component carrier DL to the base station. | 08-08-2013 |
20130235843 | ALLEVIATION OF TCP PERFORMANCE DEGRADATION DUE TO CARRIER SUSPENSION OR UE TUNE-AWAY - A method, an apparatus, and a computer program product for wireless communication are provided in which a probability of occurrence of an event expected to occur within a period of time is determined, where the event comprises one or more of a tune-away event and a suspension event. One or more transmission control protocol parameters are manipulated before the occurrence of the event when the probability of occurrence exceeds a threshold to increase a retransmission time out parameter value, or to maintain a desirable congestion window size. The transmission control protocol parameters may be manipulated by delaying, duplicating or dropping acknowledgements and/or by selectively dropping received packets before, during, or after the event. | 09-12-2013 |
20130250765 | DELAY BASED ACTIVE QUEUE MANAGEMENT FOR UPLINK TRAFFIC IN USER EQUIPMENT - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus stores data packets in a buffer. In addition, the apparatus determines a delay of at least one data packet of the data packets in the buffer. Furthermore, the apparatus controls a TCP data flow rate based on the determined delay. The apparatus may also store ACKs in a second buffer and drop an ACK of the stored ACKs when one of a number of stored ACKs is greater than a first threshold or a size of the stored ACKs is greater than a second threshold. | 09-26-2013 |
20130265987 | APPARATUS AND METHOD FOR IMPROVING DEVICE HANDOVER DURING A CALL - Disclosed are methods and apparatus for improving the performance of a user equipment handover during a data call. In one aspect, a source base station determines to handover user equipment (UE) to a target base station. The source base station first determines whether the UE is in a data call prior to the handover. The source base station then modifies one or more of connected mode discontinuous reception (CDRX) and semi-persistent scheduling (SPS) parameters with the UE based on determining to handover the UE and determining that the UE is in the data call. | 10-10-2013 |
20130303168 | MECHANISM TO IMPROVE DYNAMIC SHARING OF RECEIVE CHAIN(S) AMONG RADIO ACCESS TECHNOLOGIES - Aspects of the present disclosure generally relate to wireless communication and to mechanisms designed to help improve dynamic sharing of one or more receive chains among different radio access technologies (RATs). For example, the mechanisms may be used with LTE and other RATs where Carrier Aggregation is used for simultaneous voice and LTE (SV-LTE) applications. | 11-14-2013 |
20130322331 | METHOD AND APPARATUS FOR EXCLUDING GUARANTEED BIT RATE TRAFFIC BEARERS FROM LTE UL FLOW CONTROL - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus is a UE. The UE transmits data packets. The UE determines to implement a flow control to reduce a transmission rate of the data packets. The UE determines whether the data packets include known or potential real-time data packets. The UE refrains from implementing the flow control to reduce the transmission rate of the known/potential real-time data packets when the data packets include known/potential real-time data packets. | 12-05-2013 |
20130343265 | METHODS AND APPARATUS FOR ALIGNING VOICE CODER AND SCHEDULING TIMING - The described aspects include methods and apparatus for aligning a voice over data vocoder timing at a user equipment (UE). A scheduling interval timing is determined at the UE, and a timing of a vocoder of the UE can be aligned based on the scheduling interval timing. The UE transmits one or more packets generated by the vocoder according to the timing in at least one transmission period related to the scheduling interval timing. Thus, time delay between packet generation and transmission can be minimized. | 12-26-2013 |
20140269475 | APPARATUS AND METHOD FOR OPTIMIZING UPLINK SEMI-PERSISTENT SCHEDULING ACTIVATION - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus communicates with a UE in a DRX mode and using SPS and transmits information that enables the UE to reduce an amount of awake time while in the DRX mode and while using SPS. In another aspect, an apparatus communicates with a node using a DRX mode and using SPS and receives information that enables a reduction in an amount of awake time required while in the DRX mode and while using SPS. | 09-18-2014 |
20140274011 | METHOD AND APPARATUS FOR CONTROLLING OPERATION OF A USER EQUIPMENT BASED ON PHYSICAL LAYER PARAMETERS - Techniques for controlling internal operation of a user equipment (UE) based on physical layer (PHY) parameters of a wireless network are disclosed. The PHY parameters may include a system bandwidth, an uplink-downlink configuration, a number of antennas, a number of carriers, etc. In one design, the UE may receive system information from the wireless network. The UE may obtain at least one PHY parameter of the wireless network, at a physical layer on the UE, based on the system information and/or other signaling. The UE may provide the at least one physical layer parameter to at least one entity (e.g., a memory and flow controller, a clock controller, a thermal mitigator, an application processor, etc.) within the UE for use to control internal operation of the UE. | 09-18-2014 |