METHOD AND APPARATUS FOR TRANSMITTING CONTROL SIGNALING FOR MIMO TRANSMISSION
First Claim
1. A method for processing multi-user multiple-input multiple-output (MU-MIMO) transmission, the method comprising:
- a wireless transmit/receive unit (WTRU) receiving downlink control information, the downlink control information including WTRU-specific MIMO information and transport format information for the WTRU and common MIMO information for all WTRUs assigned to the same resource; and
the WTRU receiving and processing MIMO data based on the downlink control information.
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Abstract
A method and apparatus for processing multiple-input multiple-output (MIMO) transmission are disclosed. A wireless transmit/receive unit (WTRU) receives downlink control information including WTRU-specific MIMO and transport format information and MIMO information for all other WTRUs assigned to the same resource. The WTRU processes received MIMO data based on the downlink control information. The downlink control information may also include transport format information for all other WTRUs assigned to the same RB. The downlink control information may be transmitted via WTRU-specific control signaling. All WTRUs'"'"' MIMO and/or transport format information may be transmitted via resource-specific common control signaling. The downlink control signaling format may include at least one of a number of streams for the WTRU, a number of active WTRUs assigned to the same resource, a spatial channel identity for the WTRU, a MIMO mode, a precoding matrix index and a precoding vector index.
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Citations
52 Claims
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1. A method for processing multi-user multiple-input multiple-output (MU-MIMO) transmission, the method comprising:
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a wireless transmit/receive unit (WTRU) receiving downlink control information, the downlink control information including WTRU-specific MIMO information and transport format information for the WTRU and common MIMO information for all WTRUs assigned to the same resource; and the WTRU receiving and processing MIMO data based on the downlink control information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for processing multiple-input multiple-output (MIMO) transmission, the method comprising:
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a wireless transmit/receive unit (WTRU) receiving downlink control information, the downlink control information including at least one of a number of streams for the WTRU, a number of active WTRUs assigned to the same resource and a spatial channel identity for the WTRU; and the WTRU receiving and processing MIMO data based on the downlink control information. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A wireless transmit/receive unit (WTRU) for processing multi-user multiple-input multiple-output (MU-MIMO) transmission, the WTRU comprising:
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a receiver for receiving downlink control information and MIMO data, the downlink control information including WTRU-specific MIMO information and transport format information for the WTRU and common MIMO information for all WTRUs assigned to the same resource; and a MIMO decoder for processing the MIMO data based on the downlink control information. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A wireless transmit/receive unit (WTRU) for processing multiple-input multiple-output (MIMO) transmission, the WTRU comprising:
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a receiver for receiving downlink control information and MIMO data, the downlink control information including at least one of a number of streams for the WTRU, a number of active WTRUs assigned to the same resource, and a spatial channel identity; and a MIMO decoder for processing the MIMO data based on the downlink control information. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A method for supporting multi-user multiple-input multiple-output (MU-MIMO) transmission, the method comprising:
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assigning a resource to wireless transmit/receive units (WTRUs); transmitting downlink control information, the downlink control information including WTRU-specific MIMO information and transport format information for each of the WTRUs and common MIMO information for all WTRUs assigned to the same resource; and transmitting MIMO data. - View Dependent Claims (30, 31, 32, 33, 34)
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35. A method for supporting multiple-input multiple-output (MIMO) transmission, the method comprising:
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transmitting downlink control information, the downlink control information including at least one of a number of streams for each of wireless transmit/receive units (WTRUs), a number of active WTRUs assigned to the same resource, and a spatial channel identity for each of the WTRUs; and transmitting MIMO data. - View Dependent Claims (36, 37, 38, 39, 40)
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41. A Node-B for supporting multi-user multiple-input multiple-output (MU-MIMO) transmission, the Node-B comprising:
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a controller for generating downlink control information, the downlink control information including wireless transmit/receive unit (WTRU)-specific MIMO information and transport format information for each of WTRUs and common MIMO information for all WTRUs assigned to the same resource; and a transmitter for transmitting the downlink control information and MIMO data. - View Dependent Claims (42, 43, 44, 45, 46)
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47. A Node-B for supporting multiple-input multiple-output (MIMO) transmission, the Node-B comprising:
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a controller for generating downlink control information, the downlink control information including at least one of a number of streams for a wireless transmit/receive unit (WTRU), a number of active WTRUs assigned to the same resource, and a spatial channel identity; and a transmitter for transmitting the downlink control information and MIMO data. - View Dependent Claims (48, 49, 50, 51, 52)
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Specification