Controlling TX antenna selection
AssigneeBroadcom Corporation
InventorsMarko Tapio Autti, Seppo Rousu
Life of this patent
Estimating the term…
Abstract
Measures for controlling uplink antenna selection in a user equipment comprising at least two antennas. At the user equipment, at least two radio wave signals are received, fading conditions in relation to the received at least two radio wave signals are detected and uplink antenna selection in the user equipment is controlled at least on the basis of the detected fading conditions.
Claims22
A method of controlling uplink antenna selection in a user equipment comprising a first antenna and a second antenna, the method comprising:
- determining whether the first antenna is in line-of-sight (LOS) of a signal source;
- determining whether the second antenna is in LOS of the signal source;
- selecting, by circuitry of the user equipment when both the first antenna and the second antenna are in LOS, one of the first antenna and the second antenna as an uplink antenna according to fading conditions of signals received by the first antenna and the second antenna;
- and
- selecting, by the circuitry when one of the first antenna and the second antenna is in LOS and the other of the first antenna and the second antenna is not in LOS, the one antenna in LOS as the uplink antenna.
An apparatus that controls uplink antenna selection, the apparatus comprising:
- a first antenna;
- a second antenna;
- and
- control circuitry that
- determines whether the first antenna is in line-of-sight (LOS) of a signal source;
- determines whether the second antenna is in LOS of the signal source;
- selects, when both the first antenna and the second antenna are in LOS, one of the first antenna and the second antenna as an uplink antenna according to fading conditions of signals received by the first antenna and the second antenna;
- and
- selects, when one of the first antenna and the second antenna is in LOS and the other of the first antenna and the second antenna is not in LOS, the one antenna in LOS as the uplink antenna.
A non-transitory computer-readable storage medium storing computer readable instructions that, when executed by a computerized device including a first antenna and a second antenna, cause the computerized device to:
- determine whether the first antenna is in line-of-sight (LOS) of a signal source;
- determine whether the second antenna is in LOS of the signal source;
- select, when both the first antenna and the second antenna are in LOS, one of the first antenna and the second antenna as an uplink antenna according to fading conditions of signals received by the first antenna and the second antenna;
- and
- select, when one of the first antenna and the second antenna is in LOS and the other of the first antenna and the second antenna is not in LOS, the one antenna in LOS as the uplink antenna.
Dependencies are inferred from the claim text.