Patent application number | Description | Published |
20130260758 | APPARATUS AND METHODS FOR SYNCHRONIZATION RECOVERY IN A HYBRID NETWORK - Methods and apparatus for synchronizing operational state during hybrid network operation. In one embodiment, the various access technologies that makeup the hybrid network not fully synchronized. Thus, a wireless device operating in a mixed mode must be capable of managing synchronization across multiple access technologies. The wireless device is configured to estimate an expected “tune-away” period when disengaging with a one access technology to address events (for example, link maintenance, calls, data, and the like) or perform monitoring on a second access technology. The estimate is then used by the device to adjust its operational parameters on the technology from which it is tuning away. This ensures smooth switching away from and back to the various network technologies. | 10-03-2013 |
20130272212 | METHOD FOR IMPLEMENTING AUTONOMOUS MANAGEMENT OF RADIO RESOURCES ACROSS DUAL NETWORKS - Managing radio resources across dual networks includes a wireless mobile device connecting to a first wireless network using a first radio access technology. The wireless device may notify the first network of a capability to be temporarily non-responsive to the first network while maintaining a signaling connection to the first network. The wireless device may communicate with a second network. The wireless device may return to communicating with the first network subsequent to communicating with the second network, and in response to communicating with the second network for less than a predetermined amount of time, the wireless device may send a scheduling request to the first network. In response to receiving a grant acknowledgement from the first network, the wireless device may send a buffer status report that includes a value such as zero to indicate that the wireless device has returned to and can communicate with the first network. | 10-17-2013 |
20140010086 | OPPORTUNISTIC CARRIER AGGREGATION USING SHORT RANGE EXTENSION CARRIERS - Systems and methods for providing opportunistic carrier aggregation to short range or low power extension carriers are generally disclosed herein. One embodiment includes data traffic offload techniques to offload data communicated in a Wireless Wide Area Network (WWAN) from a primary cell to a secondary cell. For example, the primary cell may be provided by a LTE/LTE-A base station operating in licensed spectrum, and the secondary cell may be provided by a low-power extension carrier operating in unlicensed spectrum using a LTE/LTE-A standard. The low-power extension carrier may be activated as needed to off-load data transfers from the primary cell, in download-only, upload-only, and time-division LTE (TD-LTE) modes. Configurations involving multimode base stations, multimode user equipment (UE), relay extension carriers, and remote radio equipment are also described herein, in conjunction with deployment of opportunistic carrier aggregation using extension carriers. | 01-09-2014 |
Patent application number | Description | Published |
20130329586 | IMPROVING RECEPTION BY A WIRELESS COMMUNICATION DEVICE - A method for improving reception by a wireless communication device is provided. The method can include a wireless communication device using a first RF chain to support a connection to a network via a first frequency band. The method can further include the wireless communication device tuning a second RF chain, which is not being actively used for carrier aggregation, to a second frequency band. The method can additionally include the wireless communication device measuring, via the second RF chain, a signal characteristic of the second frequency band. The method can also include the wireless communication device adjusting a configuration of the first RF chain based at least in part on the measured signal characteristic. | 12-12-2013 |
20130331077 | RF CHAIN MANAGEMENT IN A CARRIER AGGREGATION CAPABLE WIRELESS COMMUNICATION DEVICE - A method for managing radio frequency (RF) chains in a carrier aggregation capable wireless communication device is provided. The method can include a wireless communication device using a first RF chain associated with a first component carrier and a second RF chain associated with a second component carrier to support a connection to a network. The method can further include the wireless communication device formatting a deactivation message configured to trigger deactivation of the second component carrier. The method can additionally include the wireless communication device sending the deactivation message to the network to trigger deactivation of the second component carrier. The method can also include the wireless communication device discontinuing usage of the second RF chain to support the connection to the network via the second component carrier after sending the deactivation message. | 12-12-2013 |
20140031065 | PROVIDING TIME ZONE INFORMATION TO WIRELESS COMMUNICATION DEVICES - A method for determining current local time for a wireless communication device is provided. The method can include a wireless communication device receiving a message sent by a network entity. The message can include location information indicative of a location associated with a time zone in which a serving cell for the wireless communication device is located. The method can further include the wireless communication device extracting the location information from the message; using the location information to determine the time zone; and determining a current local time based on the time zone. | 01-30-2014 |
20140219146 | REDUCING POWER CONSUMPTION WHEN BRIDGING INDEPENDENT CHIPSETS - A wireless communication device architecture is provided. The wireless communication device can include a WLAN chipset, a cellular chipset, and an application processor. The application processor can include a first portion and a second portion. The first portion can include at least one root complex powered via a dedicated power domain, which can be independent of at least one second power domain that can power the second portion. The WLAN chipset can coupled to a first port of the at least one root complex via a first interface. The cellular chipset can be coupled to a second port of the at least one root complex via a second interface. The at least one root complex can use power received via the dedicated power domain to bridge the WLAN chipset and the cellular chipset while the second portion of the application processor is sleeping. | 08-07-2014 |
20140241243 | REDUNDANT TRANSMISSION OF REAL TIME DATA - A method for redundant transmission of real time data is provided. The method can include an edge node in a wireless network sending a first RTP packet including a first real time data frame to a second edge node. The method can further include the edge node determining that a radio link condition is sufficient to support redundant transmission of real time data to the second edge node. The method can additionally include the edge node, in response to determining that the radio link condition is sufficient to support redundant transmission of real time data, bundling the first real time data frame with a next sequential real time data frame that has not been previously sent to the second edge node in a second RTP packet at a PDCP layer of the edge node; and sending the second RTP packet to the second edge node. | 08-28-2014 |
20140313993 | Secondary Component Carrier Future Scheduling in LTE Carrier Aggregation - A wireless communication system is presented for future scheduling of secondary component carrier(s) (SCC) during carrier aggregation in LTE wireless communications. A primary component carrier in a first subframe can be used to indicate at what future subframe SCC data may exist for the mobile device (e.g., UE, etc.). The UE can then leave off all SCC receive circuitry until the future subframe, when it can turn on all needed SCC receive circuitry to receive the SCC data. After receiving the SCC data, the UE can again power off the SCC receive circuitry. | 10-23-2014 |
20150092563 | CONTROL SIGNALING OPTIMIZATION FOR LTE COMMUNICATIONS - The disclosure describes procedures for allocating network resources for a mobile device communicating within a Long Term Evolution (LTE) network. The mobile device can be configured to decode a physical downlink shared channel (PDSCH), acquire first and second physical downlink control channel (PDCCH) decode indicators from a payload of the same PDSCH communication, decode a PDCCH for downlink control information (DCI) associated with a first application data type based on the first PDCCH decode indicator a second application data type based on the second PDCCH decode indicator. The first PDCCH decode indicator can identify an upcoming LTE subframe where the mobile device is required to decode the PDCCH for DCI associated VoLTE resource assignments and the second PDCCH decode indicator can identify an upcoming LTE subframe where the mobile device is required to decode the PDCCH for DCI associated with high bandwidth best effort (BE) data resource assignments. | 04-02-2015 |
20150092645 | DELAYED AND BUNDLED RETRANSMISSIONS FOR LOW BANDWIDTH APPLICATIONS - Apparatus and methods are disclosed for performing delayed hybrid automatic repeat request (HARQ) communications in the downlink (DL) to reduce power consumption for a user equipment (UE) during a connected mode discontinuous reception (C-DRX) cycle. An enhanced NodeB can be configured to monitor a physical uplink control channel (PUCCH) for DL HARQ information to determine when the PUCCH contains a negative acknowledgement (NACK) message, and in response to determining that the PUCCH contains a NACK message, the eNodeB can wait until a next C-DRX ON duration to transmit a HARQ DL retransmission. The eNodeB can also determine whether or not to bundle the HARQ DL retransmission in consecutive transmission time intervals, based on a signal to interference plus noise ratio (SINR) associated with the UE. | 04-02-2015 |
20150092646 | CONTROL SIGNALING OPTIMIZATION FOR LTE COMMUNICATIONS - The disclosure describes apparatus and methods for including downlink control information (DCI) normally associated with the physical downlink control channel (PDCCH) within a physical downlink shared channel (PDSCH) to reduce power consumption for a user equipment (UE) operating in a Long Term Evolution (LTE) radio resource control (RRC) connected mode. An enhanced NodeB base station can be configured to generate DCI associated with a future downlink resource assignment or uplink grant for the UE on the PDSCH or a physical uplink shared channel (PUSCH), and then include this DCI within the payload of a current PDSCH communication, such that the PDCCH does not need to be decoded by the UE during a time when DCI for future PDSCH communication is included within a current PDSCH. | 04-02-2015 |
20150092647 | CONTROL SIGNALING OPTIMIZATION FOR LTE COMMUNICATIONS - The disclosure describes procedures for including downlink control information (DCI) within a physical downlink shared channel (PDSCH) communication to reduce power consumption for a user equipment (UE) operating in a Long Term Evolution (LTE) network. A network apparatus can be configured to identify an expected DCI change for the UE, determine whether an LTE subframe location for the DCI change is known, generate either a general or a specific DCI change indicator, and send the corresponding DCI change indicator to the UE on the PDSCH. The specific DCI change indicator can include a bitmap identifying a particular upcoming LTE subframe where the UE is required to decode the PDCCH for DCI, and the general DCI change indicator can include a bit flag identifying a time associated with one or more upcoming LTE subframes when the UE should decode the PDCCH for DCI. | 04-02-2015 |
20150124671 | SHORTENED HARQ TIMELINES FOR LOW BANDWIDTH APPLICATIONS - Apparatus and methods for performing reduced hybrid automatic repeat request (HARQ) operations for a user equipment (UE) during a data communications session, e.g., for voice over LTE (VoLTE) communications. The UE can initially inform the network, via an enhanced NodeB (eNodeB), that the UE is capable of performing advanced HARQ functions. The eNodeB can further evaluate various network conditions to determine when reduced HARQ operations should be employed. When network conditions allow, the eNodeB can transmit an RRC message to the UE, including reduced HARQ timeline configuration information. Thereafter, the UE and the eNodeB can collaborate to institute the reduced HARQ timeline to schedule an application data retransmission during the data communications session. The reduced HARQ operations can be performed in conjunction with various semi-persistent scheduling (SPS) and connected mode discontinuous reception (C-DRX) operations, to further conserve UE device resources. | 05-07-2015 |
20150230206 | DYNAMIC ANTENNA TUNER SETTING FOR CARRIER AGGREGATION SCENARIOS - Apparatus and methods for dynamically adjusting radio frequency circuitry in a wireless communication device are disclosed. The wireless communication device can receive downlink communication using carrier aggregation through a primary component carrier and a secondary component carrier. When carrier aggregation is not enabled, the wireless communication device adjusts the radio frequency circuitry based on default values. When carrier aggregation is enabled, the wireless communication device evaluates radio frequency conditions for the primary and secondary component carriers and adjusts the radio frequency circuitry based on whether uplink and/or downlink communication is power constrained. When uplink communication is power constrained, the wireless communication device adjusts the radio frequency circuitry for optimal performance via the primary component carrier, and when uplink communication is not power constrained, the wireless communication device adjusts the radio frequency circuitry for optimal performance via the combination of the primary and secondary component carriers used for carrier aggregation. | 08-13-2015 |
Patent application number | Description | Published |
20140247811 | HetNet Mobility Management - A wireless communication system is presented for robust mobility management in a HetNet communication system. A source cell can prepare a macro cell and a target small cell as handover candidates during handover decision making and/or preparation. The mobile device is informed about the prepared macro cell and target small cell using radio resource control (RRC) messaging. After receiving a handover command or detecting radio frequency (RF) loss, the mobile device can try to connect with the target small cell. If the mobile device is unable to connect to the target small cell, the UE can fall back and connect to the macro cell. | 09-04-2014 |
20150043481 | METHOD AND APPARATUS FOR FLUSHING UPLINK HARQ BUFFER IN C-DRX MODE - A method for determining whether an acknowledgement received by a user equipment from an external device is a forced acknowledgement. The method including transmitting a set of data stored in an uplink buffer to an external device, receiving an acknowledgement from the external device, determining if the acknowledgement received from the external device was a forced acknowledgement and flushing out an uplink buffer if determined that the acknowledgement was not a forced acknowledgement. The determining the acknowledgement is a forced acknowledgment being based on whether an uplink retransmission collides with one or more scheduled transmission times, a Physical Hybrid-ARQ Indicator Channel (PHICH) falls between gap measurements and an uplink retransmission collides with one of the gap measurements or a TTI bundling retransmission collides with a gap measurement. If the acknowledgement is not a forced acknowledgment, a set of data stored in the uplink buffer is retransmitted to the external device. | 02-12-2015 |
20150085685 | Application Dependent Channel Condition Assessment - This disclosure relates to application dependent channel condition assessment mode selection for reduced power consumption in cellular communications. In one embodiment, a channel condition assessment mode may be selected for assessing a wireless communication channel used for a cellular link. The channel condition assessment mode may be selected from at least two channel condition assessment modes, and may be selected at least in part based on application characteristics of an application using the cellular link. Channel condition assessment may be performed according to the selected channel condition assessment mode. Channel condition assessment results obtained from the channel condition assessment may be transmitted to a cellular base station via the cellular link. | 03-26-2015 |
20150085728 | Uplink and Downlink Semi-Persistent Scheduling Alignment - This disclosure relates to aligning semi-persistent scheduling (SPS) uplink and downlink communications. In one embodiment, a cellular base station may select SPS parameters for a wireless device. The SPS parameters may include a subframe offset, a downlink SPS interval, and an uplink SPS interval. The subframe offset may indicate a subframe at which both an initial downlink subframe and an initial uplink subframe are scheduled. An indication of the SPS parameters may be transmitted to the UE. The wireless device and the cellular base station may perform uplink and downlink communication according to the SPS parameters. | 03-26-2015 |
20150085729 | Transport Block Size and Channel Condition Assessment Based Power Consumption Reduction for Cellular Communication - This disclosure relates to reducing power consumption for cellular communication based on transport block size in combination with channel condition measurements for applications with certain application characteristics. In one embodiment, a transport block size for use for uplink communication with a base station by a wireless device may be selected. The transport block size may provide more robust communication characteristics than required for current channel conditions. The transport block size may be selected based on application characteristics of an application performing the uplink communication. A transmit power for the wireless device to use for the uplink communication may be selected based on the transport block size providing more robust communication characteristics than required for the current channel conditions. In particular, transport power selection may be biased towards a reduced transmit power based on the transport block size providing more robust communication characteristics than required for the current channel conditions. | 03-26-2015 |
20150087351 | Power Consumption Optimization for Cellular Communication via Power Amplifier Biasing - This disclosure relates to optimizing power consumption for cellular communication based on transport block size in combination with channel condition measurements via power amplifier biasing. According to one embodiment, an indication of a transport block size to be used for uplink communication with a base station may be received. It may be determined that the transport block size provides more robust communication characteristics than required for current channel conditions. A power amplifier (PA) bias current for uplink communication with the cellular base station may be selected based at least in part on determining that the transport block size provides more robust communication characteristics than required for the current channel conditions. In particular, PA bias current selection may be biased to reduce power consumption at a cost of greater non-linearity based on the transport block size providing more robust communication characteristics than required for the current channel conditions. | 03-26-2015 |