Methods and nodes in a wireless communication system
First Claim
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1. A method in a radio network node, for communication of a receiver-specific control channel signal within a wireless communication system, to be received by a receiver, wherein receiver-specific downlink control channel signals are scheduled for transmission over sets of Physical Resource Block (PRB) pairs, the method comprising:
- configuring at least one receiver-specific set of at least one PRB pair of time-frequency Resource Elements (REs);
configuring a set of modulation signature sequences;
configuring an alphabet of at least one symbol, wherein each of the at least one symbol in the alphabet is associated with a modulation signature sequence in the configured set of modulation signature sequences;
selecting, for each configured receiver-specific set of at least one PRB pair, at least one modulation signature sequence by selecting a receiver-specific codeword comprising a number of symbols from the configured alphabet;
transmitting at least one of the configured set of modulation signature sequences and the configured alphabet of symbols;
selecting at least one set of at least one PRB pair for the transmission of a receiver-specific control channel signal;
modulating the selected at least one receiver-specific set by applying the selected at least one modulation signature sequence; and
transmitting the receiver-specific control channel signal over the at least one modulated receiver-specific set of the at least one PRB pair.
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Abstract
Methods and nodes, for communication of a receiver-specific control channel signal within a wireless communication system, to be received by a receiver, wherein receiver-specific downlink control channel signals are scheduled for transmission over sets of Physical Resource Block pairs.
4 Citations
15 Claims
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1. A method in a radio network node, for communication of a receiver-specific control channel signal within a wireless communication system, to be received by a receiver, wherein receiver-specific downlink control channel signals are scheduled for transmission over sets of Physical Resource Block (PRB) pairs, the method comprising:
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configuring at least one receiver-specific set of at least one PRB pair of time-frequency Resource Elements (REs); configuring a set of modulation signature sequences; configuring an alphabet of at least one symbol, wherein each of the at least one symbol in the alphabet is associated with a modulation signature sequence in the configured set of modulation signature sequences; selecting, for each configured receiver-specific set of at least one PRB pair, at least one modulation signature sequence by selecting a receiver-specific codeword comprising a number of symbols from the configured alphabet; transmitting at least one of the configured set of modulation signature sequences and the configured alphabet of symbols; selecting at least one set of at least one PRB pair for the transmission of a receiver-specific control channel signal;
modulating the selected at least one receiver-specific set by applying the selected at least one modulation signature sequence; andtransmitting the receiver-specific control channel signal over the at least one modulated receiver-specific set of the at least one PRB pair. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio network node for communication of a receiver-specific control channel signal within a wireless communication system to be received by a receiver, wherein receiver-specific downlink control channel signals are scheduled for transmission over sets of Physical Resource Block (PRB) pairs, the radio network node comprising:
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a processing circuit adapted to configure at least one receiver-specific set of at least one PRB pair of time-frequency Resource Elements (REs), configure a set of modulation signature sequences, configure an alphabet of at least one symbol, wherein each symbol in the alphabet is associated with a modulation signature sequence in the configured set of modulation signature sequences, select, for each configured receiver-specific set of at least one PRB pair, at least one modulation signature sequence by selecting a receiver-specific codeword comprising a number of symbols from the configured alphabet, select at least one set of at least one PRB pair for the transmission of a receiver-specific control channel signal, and modulate the configured receiver-specific set by applying the configured set of modulation signature sequences; and a transmitting unit adapted to transmit at least one of the selected receiver-specific codeword, the configured set of modulation signature sequences, and the configured alphabet of symbols, and transmit the receiver-specific control channel signal over the modulated receiver-specific set of the at least one PRB pair. - View Dependent Claims (11, 12)
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13. A method in a receiver, for detecting a set of Physical Resource Block (PRB) pairs used for the communication of a receiver-specific control channel signal comprising:
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receiving a receiver-specific control channel signal over a modulated receiver-specific set of at least one PRB pair; identifying the selected set of PRBs pairs allocated by the radio network node for control channel signaling by searching within the at least one received receiver-specific set of at least one PRB pair for signature sequences; demodulating control channel signal in the identified set; demodulating data received from the radio network node on a physical downlink data channel signal by using information obtained from the demodulated control channel signal and receiving at least one of the receiver-specific codeword, the set of modulation signature sequences, and the configured alphabet of symbols from the radio network node.
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14. A receiver for detecting a set of Physical Resource Block (PRB) pairs used for the communication of a receiver-specific control channel signal comprising:
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a receiving unit adapted for receiving a receiver-specific control channel signal over a modulated receiver-specific set of at least one PRB pair; and a processing circuit adapted for identifying the selected set of PRBs pairs allocated by the radio network node for control channel signaling by searching within the at least one received receiver-specific set of at least one PRB pair; further adapted for demodulating the identified control channel signal; and
furthermore adapted for demodulating data received from the radio network node on a physical downlink data channel signal, by using information obtained from the demodulated control channel signal andwherein the receiving unit is further adapted for receiving at least one of the receiver-specific codeword, the set of modulation signature sequences, and the configured alphabet of symbols from the radio network node. - View Dependent Claims (15)
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Specification