CN1717888A

5G,4G

Title

MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES

Application Number:

CN200380104553

Publication Date:

04-01-2006

Current Assignee:

QUALCOMM INC

Family ID:

32179858

Application Date:

24-10-2003

Declaring Company:

QUALCOMM INC

Publication Country:

US

Priority Date:

25-10-2002

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Title

MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES

Application Number:

CN200380104553

Family ID:

32179858

Publication Country:

US

Publication Date:

04-01-2006

Application Date:

24-10-2003

Priority Date:

25-10-2002

Current Assignee:

QUALCOMM INC

Declaring Company:

QUALCOMM INC

View on Espacenet goto-link

Abstract  Abstract

MIMO system supports multiple spatial multiplexing modes for improved performance and to obtain greater flexibility. a plurality of data stream modes may include (1) single-user operating mode the multiple data streams on orthogonal spatial channels to a single receiver (2) single user non-control mode which is transmitted to the plurality of antennas from a single receiver without spatial processing at the transmitter. (3) multi-user operating mode the plurality of data streams such that the plurality of data streams simultaneously to the plurality of receivers and has at the transmitter spatial processing (4) multi-user non-control mode the multiple antennas from (is located or not located) is transmitted to a receiver of the plurality of antennas without spatial processing by the transmitter. for each selected data transmission on the downlink and/or uplink link of the user terminal set set to select a spatial multiplexing mode for a user terminal from among a plurality of spatial multiplexing modes supported by the system.

A MIMO system supports multiple spatial multiplexing modes for improved performance and greater flexibility. These modes may include (1) a single-user steered mode that transmits multiple data streams on orthogonal spatial channels to a single receiver (2) a single-user non-steered mode that transmits multiple data streams from multiple antennas to a single receiver without spatial processing at a transmitter (3) a multi-user steered mode that transmits multiple data streams simultaneously to multiple receivers with spatial processing at a transmitter and (4) a multi-user non-steered mode that transmits multiple data streams from multiple antennas (co-located or non co-located) without spatial processing at the transmitter(s) to receiver(s) having multiple antennas. For each set of user terminal(s) selected for data transmission on the downlink and/or uplink a spatial multiplexing mode is selected for the user terminal set from among the multiple spatial multiplexing modes supported by the system.

A MIMO system supports multiple spatial multiplexing modes for improved performance and greater flexibility. These modes may include (1) a single-user steered mode that transmits multiple data streams on orthogonal spatial channels to a single receiver (2) a single-user non-steered mode that transmits multiple data streams from multiple antennas to a single receiver without spatial processing at a transmitter (3) a multi-user steered mode that transmits multiple data streams simultaneously to multiple receivers with spatial processing at a transmitter and (4) a multi-user non-steered mode that transmits multiple data streams from multiple antennas (co-located or non co-located) without spatial processing at the transmitter(s) to receiver(s) having multiple antennas. For each set of user terminal(s) selected for data transmission on the downlink and/or uplink a spatial multiplexing mode is selected for the user terminal set from among the multiple spatial multiplexing modes supported by the system.

Note:

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