Method and apparatus for wireless communications
AssigneeSamsung Electronics Co., Ltd.
InventorsEun Sung JEON, Min Ki AHN, Wook Bong LEE, Sung Soo KIM, Joon Suk KIM
Life of this patent
Estimating the term…
Abstract
A method for wireless communications includes: receiving a sounding packet from an access point; determining a rank of a channel matrix corresponding to a communications channel; and when the rank of the channel matrix is a full rank: selecting at least one of a plurality of pieces of codebook information previously stored in a memory, as beamforming information, transmitting the beamforming information to the access point, and applying channel smoothing to a communications channel provided by the access point.
Claims21
A method for wireless communications, comprising:
- a wireless communication device determining a rank of a channel matrix corresponding to a communications channel provided by an access point, based on a sounding packet received by the wireless communication device from the access point;
- and
- when the rank of the channel matrix is a full rank:
- the wireless communication device selecting at least one of a plurality of pieces of codebook information previously stored in a memory associated with the wireless communication device, as beamforming information;
- the wireless communication device transmitting the beamforming information to the access point;
- and
- the wireless communication device applying channel smoothing to the communications channel.
A method for wireless communications, comprising:
- an access point transmitting a sounding packet to a modem of an external electronic device;
- the access point receiving feedback information from the modem;
- determining a rank of a channel matrix corresponding to a communications channel, having transmitted the sounding packet, based on the feedback information;
- and
- when the rank of the channel matrix is a full rank:
- selecting at least one of a plurality of pieces of codebook information previously stored in a memory, as beamforming information;
- and
- recommending the modem to activate channel smoothing.
A method for wireless communications, comprising:
- evaluating, by a modem, a quality of a communications channel provided by an access point, based on a sounding packet received from the access point;
- determining, by the modem, a rank of a channel matrix corresponding to the communications channel, using the quality of the communications channel and modeling information stored in a memory associated with the modem;
- selecting, by the modem, one of a plurality of pieces of codebook information stored in the memory as beamforming information, when the rank of the channel matrix is a full rank;
- transmitting, by the modem, the beamforming information to the access point;
- activating channel smoothing when the rank of the channel matrix is the full rank;
- and
- transmitting and receiving, by the modem, a signal with the access point, using a modulation and coding scheme selected by a processor based on the quality of the communications channel, when a communications channel with the access point is set.
21-32. (canceled)
Dependencies are inferred from the claim text.