Abstract:
Methods, systems, and devices for wireless communications are described. A first device, such as a user equipment (UE) or base station, may receive, at a first antenna of a first antenna array, a first set of reference signals. The first device may measure the phase for each of the reference signals and estimate a linear offset between the first antenna array and a second antenna array of a second device that transmitted the reference signals. The first device may adjust an alignment of the first antenna array according to the estimated linear offset. The first device may receive a second set of reference signals, measure the phase for each of the reference signals, and estimate one or more rotational offsets between the first antenna array and the second antenna array. The first device may adjust the alignment of the first antenna array based on the one or more rotational offsets.
Abstract:
Methods, systems, and devices for wireless communications are described. A first device may transmit, from a first antenna of a first antenna array of the first device to a second antenna of a second antenna array of a second device, a first set of reference signals. The first device may transmit, from a first plurality of antennas of the first antenna array to a second plurality of antennas of the second antenna array, a second plurality of reference signals. The first device may receive, from the second device, an indication based at least in part on a linear offset and one or more rotational offsets estimated by the second device associated with the first set of reference signals and the second plurality of reference signals. The first device may communicate with the second device using the first antenna array based on the indication.
Abstract:
One or more scheduling grants may be received from a Node B related to a plurality of uplink MIMO streams. A determination may be made as to a primary transport power and a primary transport block size for a primary stream. A secondary transmit power and a secondary transport block size for a secondary stream may also be determined. An enhanced relative grant channel from the Node B, as well as another E-RGC from a non-serving Node B may be received for each of the plurality of uplink MIMO streams.
Abstract:
A method of determining a distance estimate between a mobile device and a wireless transceiver communicating with the mobile device on at least one multi-carrier signal includes: receiving at least one multi-carrier signal; selecting at least one carrier signal from the at least one multi-carrier signal; measuring a signal characteristic of the at least one carrier signal from the at least one multi-carrier signal; and determining the distance estimate between the mobile device and the wireless transceiver based at least partially upon the signal characteristic.
Abstract:
Apparatus and methods of scheduling one or multiple streams for a user equipment (UE) include receiving a single happy bit for the one or multiple streams, determining a set of scheduling grants for a UE configured to transmit over the one or multiple streams, and transmitting the scheduling grant to the UE.