System and method for space-frequency rate control in a MIMO wireless communication network
AssigneeSamsung Electronics Co., Ltd.
InventorsFarooq Khan, Cornelius van Rensburg, Jiann-An Tsai
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Abstract
A base station that communicates with subscriber stations in an OFDM wireless network. The base station transmits a first data stream and a second data stream to a subscriber station using a first virtual antenna and a second virtual antenna. The base station allocates first data symbols associated with the first data stream to be transmitted from the first virtual antenna in a first selected group of subbands of OFDM subcarriers and allocates second data symbols associated with the first data stream to be transmitted from the second virtual antenna in a second selected group of subbands of OFDM subcarriers.
Claims24
For use in an orthogonal frequency division multiplexing (OFDM) network capable of communicating with a plurality of subscriber stations in a coverage area of the OFDM network, a base station configured to transmit to a first subscriber station, using a first virtual antenna and a second virtual antenna, a first data stream and a second data stream, wherein the base station is configured to allocate first data symbols associated with the first data stream to be transmitted from the first virtual antenna in a first selected group of subbands of OFDM subcarriers and allocate second data symbols associated with the first data stream to be transmitted from the second virtual antenna in a second selected group of subbands of OFDM subcarriers different from the first selected group of subbands,
- wherein the base station further is configured to allocate third data symbols associated with the second stream to be transmitted from the first virtual antenna in a third selected group of subbands of OFDM subcarriers different from the first selected group of subbands.
An orthogonal frequency division multiplexing (OFDM) network comprising a plurality of base stations capable of communicating with a plurality of subscriber stations in a coverage area of the OFDM network, each of the base stations configured to transmit to a first subscriber station, using a first virtual antenna and a second virtual antenna, a first data stream and a second data stream, wherein the each base station is configured to allocate first data symbols associated with the first data stream to be transmitted from the first virtual antenna in a first selected group of subbands of OFDM subcarriers and allocate second data symbols associated with the first data stream to be transmitted from the second virtual antenna in a second selected group of subbands of OFDM subcarriers different from the first selected group of subbands,
- wherein the base station further is configured to allocate third data symbols associated with the second stream to be transmitted from the first virtual antenna in a third selected group of subbands of OFDM subcarriers different from the first selected group of subbands.
For use in base station of an orthogonal frequency division multiplexing (OFDM) network capable of communicating with a plurality of subscriber stations in a coverage area of the OFDM network, a method of transmitting a first data stream and a second data stream from the base station to a first subscriber station using a first virtual antenna and a second virtual antenna, the method comprising:
- allocating first data symbols associated with the first data stream to be transmitted from the first virtual antenna in a first selected group of subbands of OFDM subcarriers;
- allocating second data symbols associated with the first data stream to be transmitted from the second virtual antenna in a second selected group of subbands of OFDM-subcarriers different from the first selected group of subbands;
- and
- allocating third data symbols associated with the second stream to be transmitted from the first virtual antenna in a third selected group of subbands of OFDM subcarriers different from the first selected group of subbands.
Dependencies are inferred from the claim text.