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 associated with one wireless transmit/receive unit (WTRU) of a plurality of WTRUs that are assignable to a same resource, the method comprising:
- receiving, by the one wireless transmit/receive unit, downlink control information, the downlink control information indicating WTRU-specific MIMO information specific to the one WTRU, transport format information specific to the one WTRU and common MIMO information for the plurality of WTRUs assignable to the same resource; and
receiving and processing, by the one WTRU, 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
40 Claims
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1. A method for processing multi-user multiple-input multiple-output (MU-MIMO) transmission associated with one wireless transmit/receive unit (WTRU) of a plurality of WTRUs that are assignable to a same resource, the method comprising:
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receiving, by the one wireless transmit/receive unit, downlink control information, the downlink control information indicating WTRU-specific MIMO information specific to the one WTRU, transport format information specific to the one WTRU and common MIMO information for the plurality of WTRUs assignable to the same resource; and receiving and processing, by the one WTRU, MIMO data based on the downlink control information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless transmit/receive unit (WTRU) for processing multi-user multiple-input multiple-output (MU-MIMO) transmission associated with a plurality of WTRUs including the WTRU that are assignable to a same resource, the WTRU comprising:
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a receiver for receiving downlink control information and MIMO data, the downlink control information indicating WTRU-specific MIMO information specific to the WTRU, transport format information specific to the WTRU and common MIMO information for the plurality of WTRUs assignable to the same resource; and a MIMO decoder for processing, by the WTRU, the MIMO data based on the downlink control information. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. 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 (18, 19, 20, 21, 22)
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23. 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 (24, 25, 26, 27, 28)
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29. A method for processing multi-user multiple-input multiple-output (MU-MIMO) transmission associated with one wireless transmit/receive unit (WTRU) of a plurality of WTRUs that are assignable to a same resource, the method comprising:
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receiving, via the one WTRU, downlink control information, the downlink control information including first MIMO information specific to the one WTRU and first transport format information specific to the one WTRU, and indicating second MIMO information for processing MIMO data specific to the one WTRU from the same resource, exclusive of MIMO data of any other WTRU assignable to the same resource; and receiving and processing the MIMO data specific to the one WTRU based on the downlink control information. - View Dependent Claims (30, 31, 32, 33, 34)
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35. A wireless transmit/receive unit (WTRU) for processing multiple-input multiple-output (MIMO) transmission, the WTRU comprising:
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a receiver configured to receive downlink control information, the downlink control information including first MIMO information specific to the WTRU and first transport format information specific to the WTRU, and indicating second MIMO information for processing MIMO data specific to the WTRU from the same resource, exclusive of MIMO data of any other WTRU assignable to the same resource; and a MIMO decoder configured to process the MIMO data specific to the WTRU based on the downlink control information. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification