Abstract:
A method of wireless communication occurs in a frequency band having a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type. In one configuration, the first carrier type is a new carrier type and the second carrier type is a legacy carrier type. Legacy UEs may only receive signals from the second carrier type. However, new UEs may receive signals from both the first carrier type and the second carrier type. Therefore, to provide backward compatibility while supporting new UEs, an eNodeB may signal support of the first carrier type to a new UE while maintaining signaling with legacy UEs. Additionally, the eNodeB may restrict operations of a UE to the first set of resources or second set of resources.
Abstract:
A method of wireless communication includes determining a capacity of a control channel based on whether multiplexing of acknowledgement/negative acknowledgement (ACK/NAK) bits for multiple component carriers with periodic channel state information (CSI) is allowed. A threshold for a number of ACK/NAK bits is determined based at least in part on a payload size of the periodic CSI and the determined capacity. The method also includes bundling ACK/NAK bits when a number of the ACK/NAK bits is greater than the determined threshold. The ACK/NAK bits and the periodic CSI are transmitted via the control channel.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided in connection with specifying a traffic-to-pilot (T/P) ratio per subframe and/or resource block to allow a base station to transmit over the subframes and/or resource blocks using varying transmit powers. In one example, a device communicating with the base station can receive a plurality of T/P ratios each related to a power used by the base station to transmit over one of a plurality of carriers in a specific subframe or resource block, determine a power of a reference signal received from the base station over a carrier of the plurality of carriers, and process a data signal received over the carrier within the specific subframe or resource block based in part on applying, to the power of the reference signal, a T/P ratio of the plurality of T/P ratios corresponding to the carrier.
Abstract:
A method of wireless communication provides narrow bandwidth operation within a wider LTE system bandwidth. Wideband information is transmitted to a first set of user equipments (UEs). Also, narrowband information is transmitted to a second set of UEs. The second set of UEs operate in a narrower bandwidth than the first set of UEs.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus, e.g., base station, determines a plurality of component carriers configured for a user equipment (UE) served by the apparatus. The plurality of component carriers includes a primary component carrier and a secondary component carrier. The primary component carrier may be a time division duplex (TDD) carrier having a same uplink:downlink configuration as a first cell at a neighboring base station, and the secondary component carrier may be a TDD carrier having a different uplink:downlink configuration as a second cell at the neighboring base station. The apparatus exchanges data with the UE according to an effective uplink-downlink subframe partition of the configured component carriers. The effective uplink-downlink subframe partition may be time varying and the apparatus may operate to limit interference due to the different TDD configurations at the serving and neighbor cells.
Abstract:
Certain aspects of the present disclosure provide closed loop and open loop power control techniques for each antenna of the user equipment (UE). The access point may measure the received signals from each antenna of the user equipment, calculate a power adjustment parameter for each antenna of the UE, and transmit the parameters to the UE. The UE may use the adjustment parameters to determine the transmit power value for each antenna. In addition, the UE may measure the path loss for each antenna and update the transmit power per antenna based on the path loss and other parameters.
Abstract:
Certain aspects of the present disclosure provide closed loop and open loop power control techniques for each antenna of the user equipment (UE). The access point may measure the received signals from each antenna of the user equipment, calculate a power adjustment parameter for each antenna of the UE, and transmit the parameters to the UE. The UE may use the adjustment parameters to determine the transmit power value for each antenna. In addition, the UE may measure the path loss for each antenna and update the transmit power per antenna based on the path loss and other parameters.
Abstract:
Aspects of the present disclosure provide techniques for managing cyclic prefixes (CPs). The techniques may involve utilizing different CP types for different portions within a same subframe. Various mechanisms may be used to determine which CP types are used for which portions.
Abstract:
A method of wireless communication occurs in a frequency band having a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type. In one configuration, the first carrier type is a new carrier type and the second carrier type is a legacy carrier type. Legacy UEs may only receive signals from the second carrier type. However, new UEs may receive signals from both the first carrier type and the second carrier type. Therefore, to provide backward compatibility while supporting new UEs, an eNodeB may signal support of the first carrier type to a new UE while maintaining signaling with legacy UEs. Additionally, the eNodeB may restrict operations of a UE to the first set of resources or second set of resources.