System, method and apparatus for antenna selection in a wireless communication system
AssigneeSilicon Laboratories Inc.
InventorSriram Mudulodu
Life of this patent
Estimating the term…
Abstract
In one example, an apparatus includes: an analog front end (RF) circuit to receive and process, from a first antenna and a second antenna, a radio frequency (RF) signal to obtain a digital signal, the RF circuit having a single RF signal processing path; a baseband circuit coupled to the RF circuit to process the digital signal, the baseband circuit to determine a first metric for a first packet of the RF signal received via the first antenna; and an antenna selection controller coupled to the baseband circuit, the antenna selection controller to cause the RF circuit to switch from receipt of the RF signal via the second antenna to receipt of the RF signal via the first antenna based at least in part on the first metric.
Claims16
An apparatus comprising:
- a radio frequency (RF) circuit to receive and process, from a first antenna or a second antenna, a RF signal, the RF circuit to obtain a digital signal from the RF signal, and the RF circuit having a single RF signal processing path;
- a baseband circuit coupled to the RF circuit to process the digital signal, the baseband circuit to determine a first metric for a first packet of the RF signal received via the first antenna, determine a second metric for the first packet of the RF signal received via the second antenna and determine a third metric for the first packet of the RF signal received via a third antenna, the first packet comprising a first management packet transmitted from an access point;
- and
- an antenna selection controller coupled to the baseband circuit, the antenna selection controller to cause the RF circuit to switch from receipt of the RF signal via the first antenna to receipt of the RF signal via the second antenna based at least in part on the first metric.
An apparatus comprising:
- a radio frequency (RF) circuit to receive and process, from a first antenna or a second antenna, a RF signal, the RF circuit to obtain a digital signal from the RF signal, and the RF circuit having a single RF signal processing path;
- a baseband circuit coupled to the RF circuit to process the digital signal, the baseband circuit to determine a first metric for a first packet of the RF signal received via the first antenna;
- and
- an antenna selection controller coupled to the baseband circuit, the antenna selection controller to cause the RF circuit to switch from receipt of the RF signal via the first antenna to receipt of the RF signal via the second antenna based at least in part on the first metric;
- wherein the apparatus is to:
- receive a first portion of the first packet via the first antenna, decode a MAC address of the first packet, and determine the first metric comprising a first channel quality metric for the first portion of the first packet received via the first antenna;
- receive a second portion of the first packet via the second antenna and determine a second channel quality metric for the second portion of the first packet received via the second antenna;
- receive a third portion of the first packet via a third antenna;
- determine a third channel quality metric for the third portion of the first packet received via the third antenna;
- and
- select one of the first, second and third antennas for receipt of a next packet based on at least one of the first channel quality metric, the second channel quality metric, or the third channel quality metric.
A method comprising:
- receiving, in a radio frequency (RF) circuit of a wireless device via a first antenna and a second antenna, a RF signal comprising a management packet from an access point;
- processing, in the RF circuit, a first portion of the management packet received via the first antenna to obtain a first digital signal;
- processing, in the RF circuit, a second portion of the management packet received via the second antenna to obtain a second digital signal;
- selecting one of the first antenna and the second antenna for reception of one or more packets of the RF signal based on at least one of a first channel quality (CQ) metric associated with the first digital signal and a second CQ metric associated with the second digital signal;
- and
- switching a current antenna of the wireless device from the current antenna to the selected antenna if the current antenna is not the selected antenna.
Dependencies are inferred from the claim text.