Mimo control channel with shared channelization codes
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsYi-Pin Eric Wang, Jung-Fu Cheng, Stephen Grant, Leonid Krasny, Karl James Molnar
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Abstract
A control channel for MIMO users operating in conjunction with an HS-DSCH system shares channelization codes with an HS-SCCH control channel. MIMO control channel information can be signaled from a transmit antenna selected based on information produced by the intended recipient. The modulation format used by a MIMO control channel can be selected based on the number of antenna streams in the corresponding MIMO data transmission.
Claims34
A CDMA transmitter apparatus, comprising:
- an input for providing first control information to be transmitted on a first control channel used to provide parameters for an associated MIMO CDMA data transmission;
- and
- a transmission controller coupled to said input and capable of applying to said first control information a channelization code that is also available to be applied to second control information transmitted on a second control channel used to provide parameters for an associated single-antenna CDMA data transmission.
A wireless transmitter apparatus, comprising:
- an input that provides information produced by an intended recipient of a MIMO data transmission;
- and
- a transmission controller coupled to said input and responsive to said information for selecting one of a plurality of available antennas to transmit control information on a control channel used to provide parameters for the MIMO data transmission.
A wireless transmitter apparatus, comprising:
- an input that provides information indicative of a number of antenna streams to be contained in a MIMO data transmission;
- and
- a transmission controller coupled to said input and responsive to said information for selecting a modulation format for transmission of control information on a control channel used to provide parameters for the MIMO data transmission.
A method for CDMA transmission, comprising:
- providing first control information to be transmitted on a first control channel used to provide parameters for an associated MIMO CDMA data transmission;
- and
- applying to said first control information a channelization code that is also available to be applied to second control information transmitted on a second control channel used to provide parameters for an associated single-antenna CDMA data transmission.
A method for wireless data transmission, comprising:
- providing information produced by an intended recipient of a MIMIO data transmission;
- and
- in response to said information, selecting one of a plurality of available antennas to transmit control information on a control channel used to provide parameters for the MIMO data transmission.
A method for wireless data transmission, comprising:
- providing information indicative of a number of antenna streams to be contained in a MIMO data transmission;
- and
- in response to said information, selecting a modulation format for transmission of control information on a control channel used to provide parameters for the MIMO data transmission.
Dependencies are inferred from the claim text.