Signaling MIMO allocations
First Claim
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1. A base station for communicating data to a first mobile terminal in a cell of a cellular radio network, the base station comprising:
- at least first and second antennas;
determining processing circuitry that determines a first set of time slots for allocating to the first mobile terminal for use in receiving data transmitted to the first mobile terminal from the base station;
allocating processing circuitry that allocates one or more time slots from the first set of time slots to the first antenna and that allocates one or more different time slots from the first set of time slots to the second antenna, or allocates one or more time slots from the first set of time slots to both the first antenna and the second antenna,generating processing circuitry that generates allocation information indicating which time slots of the first set of time slots have been allocated to the first mobile terminal, wherein the allocation information generated indicates the allocation of the time slots from the first set of time slots to at least one of the first antenna and the second antenna, anda transmitter that periodically broadcasts the allocation information to the first mobile terminal and other mobile terminals in the cell that have been allocated time slots in the first set of time slots.
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Abstract
The present invention relates to demodulation of radio signals from a base station having collocated transmit antennas, and more particularly to signaling allocation information from a base station to a mobile terminal. The allocation information may include timeslot and code information of allocation to other mobile terminals. Some embodiments of the present invention facilitate a mobile terminal'"'"'s ability to receive and demodulate a signal containing multiple interfering signals by communicating codes allocated to other mobile terminals.
32 Citations
17 Claims
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1. A base station for communicating data to a first mobile terminal in a cell of a cellular radio network, the base station comprising:
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at least first and second antennas; determining processing circuitry that determines a first set of time slots for allocating to the first mobile terminal for use in receiving data transmitted to the first mobile terminal from the base station; allocating processing circuitry that allocates one or more time slots from the first set of time slots to the first antenna and that allocates one or more different time slots from the first set of time slots to the second antenna, or allocates one or more time slots from the first set of time slots to both the first antenna and the second antenna, generating processing circuitry that generates allocation information indicating which time slots of the first set of time slots have been allocated to the first mobile terminal, wherein the allocation information generated indicates the allocation of the time slots from the first set of time slots to at least one of the first antenna and the second antenna, and a transmitter that periodically broadcasts the allocation information to the first mobile terminal and other mobile terminals in the cell that have been allocated time slots in the first set of time slots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of communicating data from a base station to mobile terminals in a cell of a cellular radio network, the base station including at least first and second antennas, the method comprising:
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determining a first set of time slots for allocating to a first mobile terminal for use by the first mobile terminal in receiving data transmitted to the first mobile terminal from the base station; allocating one or more time slots from the first set of time slots to the first antenna and one or more different time slots from the first set of time slots to the second antenna, or allocating one or more time slots from the first set of time slots to both the first antenna and the second antenna, generating allocation information that indicates which time slots from the first set of time slots have been allocated to the first mobile terminal, wherein the allocation information generated indicates the allocation of the time slots from the first set of time slots to at least one of the first antenna and the second antenna, and periodically broadcasting the allocation information to the first mobile terminal and other mobile terminals in the cell that have been allocated time slots in the first set of time slots. - View Dependent Claims (16)
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17. A non-transitory computer readable medium having stored thereon a program that when executed by a computer causes the computer to execute a method of communicating data from a base station to mobile terminals in a cell of a cellular radio network, the base station including at least first and second antennas, the method comprising:
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determining a first set of time slots for allocating to a first mobile terminal for use by the first mobile terminal in receiving data transmitted to the first mobile terminal from the base station; allocating one or more time slots from the first set of time slots to the first antenna and one or more different time slots from the first set of time slots to the second antenna, or allocating one or more time slots from the first set of time slots to both the first antenna and the second antenna, generating allocation information that indicates which time slots from the first set of time slots have been allocated to the first mobile terminal, wherein the allocation information generated indicates the allocation of the time slots from the first set of time slots to at least one of the first antenna and the second antenna, and periodically broadcasting the allocation information to the first mobile terminal and other mobile terminals in the cell that have been allocated time slots in the first set of time slots.
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Specification