CN1717888B

5G,4G

Title

MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES

Application Number:

CN200380104553

Publication Date:

25-04-2012

Current Assignee:

QUALCOMM INC

Family ID:

32179858

Application Date:

24-10-2003

Declaring Company:

QUALCOMM INC

Publication Country:

US

Priority Date:

25-10-2002

View on Espacenet goto-link

Title

MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES

Application Number:

CN200380104553

Family ID:

32179858

Publication Country:

US

Publication Date:

25-04-2012

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 greater flexibility is obtained. a plurality of data streams of these modes may include (1) a single user operating mode the multiple data streams on the orthogonal space channel sent to a single receiver (2) single-user operating mode which will from multiple antennas to a single receiver without spatial processing at the transmitter. (3) a user operating mode a plurality of data streams which will multiple data streams simultaneously transmitted to a plurality of receivers and has at the transmitter spatial processing (4) a user operating mode which will from multiple antennas (located or not located) is sent to a receiver with a plurality of antennas without spatial processing at the transmitter. For each selected for data transmission on the downlink and/or uplink user terminal set selecting 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.

Note:

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