Measurement support for a smart antenna in a wireless communication system
A method for taking measurements with a smart antenna in a wireless communication system having a plurality of STAs begins by sending a measurement request from a first STA to a second STA. At least two measurement packets are transmitted consecutively from the second STA to the first STA. Each measurement packet is received at the first STA using a different antenna beam. The first STA performs measurements on each measurement packet and selects an antenna beam direction based on the measurement results.
1. A method for use in a first station (STA) for antenna selection in wireless communications, the method comprising:
transmitting a measurement request packet to a second STA that includes an indication of a requested number of measurement packets;
receiving, at the first STA, the requested number of measurement packets, wherein the first STA uses a different receive beam for each measurement packet;
measuring, at the first STA, each of the received measurement packets; and
selecting a beam based on the measurement of each of the received measurement packets.
2. The method of claim 1 , wherein each of the respective received measurement packets is received after a respective short interframe space (SIFS).
3. The method of claim 1 , wherein the measurement request packet comprises a field that provides the indication of the requested number of measurement packets.
4. The method of claim 1 , wherein each measurement packet includes sequence information.
5. The method of claim 1 , further comprising receiving an ACK from the second STA, wherein the ACK is associated with the measurement request packet.
6. The method of claim 5 , wherein the ACK is received after a short interframe space (SIFS).
7. A first station (STA), comprising:
a processor configured to:
send a measurement request packet to a second STA that includes an indication of a requested number of measurement packets;
receive, at the first STA, the requested number of measurement packets, wherein the first STA uses a different receive beam for each measurement packet;
measure each of the received measurement packets; and
select a beam based on the measurement of each of the received measurement packets.
8. The first STA of claim 7 , wherein each of the respective received measurement packets is received after a respective short interframe space (SIFS).
9. The first STA of claim 7 , wherein the measurement request packet comprises a field that provides the indication of the requested number of measurement packets.
10. The first STA of claim 7 , wherein each measurement packet includes sequence information.
11. The first STA of claim 7 , wherein the processor is further configured to receive an ACK from the second STA, wherein the ACK is associated with the measurement request packet.
12. The first STA of claim 11 , wherein the ACK is received after a short interframe space (SIFS).