Patent application number | Description | Published |
20140094213 | Transmission Power Control for Signals Used by User Equipment Terminals for Device-to-Device Services - Methods, systems, and devices provide improved power control for signals used for device-to-device services. In one aspect, a user equipment (“UE”) terminal controls the transmission power of signals used for device-to-device (“D2D”) services based on power control parameters provided by a base station. The UE terminal includes a first power control module for controlling a first transmission power to be applied to signals used for communication with a base station. The UE terminal also includes a second power control module for controlling a second transmission power to be applied to signals used for D2D services. The first and second transmission powers can be determined based on at least one power control parameter received from the base station. The UE terminal also includes a signal transceiver module for transmitting signals used for uplink/downlink communications using the first transmission power and transmitting signals used for D2D services using the second transmission power. | 04-03-2014 |
20140119246 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines an uplink control information (UCI) transmission cell in a wireless communication network with at least one frequency-division duplexing (FDD) cell and at least one time-division duplexing (TDD) cell. The UE also selects a first cell for FDD and TDD carrier aggregation. The UE further determines a set of downlink subframe associations for the first cell that indicate at least one UCI transmission uplink subframe of the UCI transmission cell. The UE additionally sends Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information in the UCI transmission uplink subframe of the UCI transmission cell. | 05-01-2014 |
20140334359 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines an uplink control information (UCI) transmission cell in a wireless communication network with at least one frequency-division duplexing (FDD) cell and at least one time-division duplexing (TDD) cell. The UE also selects a first cell for FDD and TDD carrier aggregation. The UE further determines a set of downlink subframe associations for the first cell that indicate at least one UCI transmission uplink subframe of the UCI transmission cell. The UE additionally sends Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information in the UCI transmission uplink subframe of the UCI transmission cell. | 11-13-2014 |
20150023228 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a duplex method of each serving cell for frequency-division duplexing (FDD) and time-division duplexing (TDD) carrier aggregation. At least one serving cell is a TDD cell and at least one serving cell is a FDD cell. The UE also determines physical downlink shared channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) transmission timing for a serving cell. When a primary cell is a TDD cell, the PDSCH HARQ-ACK transmission timing for the serving cell is determined based on a downlink (DL) association set for the serving cell. The UE further sends PDSCH HARQ-ACK information based on the PDSCH HARQ-ACK transmission timing. | 01-22-2015 |
20150043399 | DEVICES FOR REPORTING UPLINK INFORMATION - A user equipment (UE) for reporting information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE selects a reference cell having a reference uplink-downlink (UL-DL) configuration. The UE also selects a first uplink subframe from the reference cell. The UE further selects a first subframe set from a first cell having a first UL-DL configuration. The first UL-DL configuration is different than the reference UL-DL configuration. The UE additionally determines a first set of associations between the first subframe set and the first uplink subframe. The UE further aggregates information corresponding to the reference cell and information corresponding to the first cell based on the first set of associations to produce aggregated information. The UE also reports the aggregated information on an uplink reporting cell. | 02-12-2015 |
20150156767 | SELECTING A CODEWORD AND DETERMINING A SYMBOL LENGTH FOR UPLINK CONTROL INFORMATION - A wireless communication device configured for selecting a codeword and determining a symbol length for uplink control information is described. The wireless communication device includes a processor and instructions stored in memory. The wireless communication device establishes communication with a base station, receives downlink control information from the base station and receives base station information. The wireless communication device generates uplink control information based on the base station information. The wireless communication device also determines a number of symbols for the uplink control information for a plurality of layers and sends the uplink control information. | 06-04-2015 |
20150244446 | ANTENNA PORT MODE AND TRANSMISSION MODE TRANSITIONS - A wireless communication device may autonomously transition from a multiple antenna port mode to a single antenna port mode. The wireless communication device may implicitly notify a base station about the autonomous transition from the multiple antenna port mode to the single antenna port mode. The base station may reallocate resources that were previously allocated to the wireless communication device but that are no longer being used by the wireless communication device. In some cases, the base station may configure the wireless communication device's antenna port mode via radio resource control signaling. | 08-27-2015 |
20150271841 | DEVICE-TO-DEVICE COMMUNICATIONS APPARATUS AND METHODS - A method in a wireless terminal ( | 09-24-2015 |
20150271846 | SCHEDULING WIRELESS DEVICE-TO-DEVICE COMMUNICATIONS - A radio access node ( | 09-24-2015 |