Methods for transmitting and receiving control information using time-frequency resources of decoding candidates
First Claim
Patent Images
1. A method performed at a radio access network node, the method comprising:
- decoding, at a transceiver, at least one set of decoding candidates, each set of decoding candidates being associated with at least one spatial layer within a UE-specific search space for the transceiver, and each decoding candidate in the at least one set of decoding candidates including at least one time-frequency control channel resource element, the UE-specific search space being a three-dimensional search space for a control channel; and
detecting, at the transceiver, whether control information is present on the control channel based on the decoded at least one set of decoding candidates;
whereina spatial dimension of the UE-specific search space is determined based on a number of spatial layers associated with the UE-specific search space and a transmit diversity order for the at least one set of decoding candidates.
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Abstract
In a method for receiving control information, a transceiver decodes at least one set of decoding candidates, and then detects whether control information is present on the control channel based on the decoded at least one set of decoding candidates. In a method for transmitting control information, a transceiver selects a decoding candidate from a set of decoding candidates for transmitting control information on a control channel; and transmits to another transceiver, control information using at least one time-frequency control channel resource element corresponding to the selected decoding candidate.
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Citations
24 Claims
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1. A method performed at a radio access network node, the method comprising:
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decoding, at a transceiver, at least one set of decoding candidates, each set of decoding candidates being associated with at least one spatial layer within a UE-specific search space for the transceiver, and each decoding candidate in the at least one set of decoding candidates including at least one time-frequency control channel resource element, the UE-specific search space being a three-dimensional search space for a control channel; and detecting, at the transceiver, whether control information is present on the control channel based on the decoded at least one set of decoding candidates;
whereina spatial dimension of the UE-specific search space is determined based on a number of spatial layers associated with the UE-specific search space and a transmit diversity order for the at least one set of decoding candidates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method performed at a radio access network node, the method comprising:
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selecting, by a first transceiver, a decoding candidate from a set of decoding candidates for transmitting control information on a control channel, the set of decoding candidates being associated with at least one spatial layer within a UE-specific search space for a second transceiver, and the selected decoding candidate in the set of decoding candidates including at least one time-frequency control channel resource element, the UE-specific search space being a three-dimensional search space for the control channel; and transmitting, from the first transceiver to the second transceiver, control information using the at least one time-frequency control channel resource element corresponding to the selected decoding candidate;
whereina spatial dimension of the UE-specific search space is determined based on a number of spatial layers associated with the UE-specific search space and a transmit diversity order for the set of decoding candidates. - View Dependent Claims (19)
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20. A method performed at a radio access network node, the method comprising:
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selecting, by a first transceiver, a set of decoding candidates from among a plurality of sets of decoding candidates based on whether control information is to be transmitted with or without transmit diversity, the plurality of sets of decoding candidates including a first set of decoding candidates allocated for transmitting control information with transmit diversity and a second set of decoding candidates allocated for transmitting control information without transmit diversity, the first set of decoding candidates being associated with at least two spatial layers within a UE-specific search space for a second transceiver and the second set of decoding candidates being associated with at least one spatial layer within the UE-specific search space for the second transceiver, each decoding candidate in the first and second sets of decoding candidates including at least one time-frequency control channel resource element, the UE-specific search space being a three-dimensional search space for a control channel; selecting, by the first transceiver, a decoding candidate from the selected set of decoding candidates; and transmitting, from the first transceiver to the second transceiver, the control information using the at least one time-frequency control channel resource element of the selected decoding candidate;
whereina spatial dimension of the UE-specific search space is determined based on a number of spatial layers associated with the UE-specific search space and a transmit diversity order for the selected set of decoding candidates. - View Dependent Claims (21)
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22. A radio access network node comprising:
a transceiver configured to decode at least one set of decoding candidates, each set of decoding candidates being associated with at least one spatial layer within a UE-specific search space for the transceiver, and each decoding candidate in the at least one set of decoding candidates including at least one time-frequency control channel resource element, the transceiver being further configured to detect whether control information is present on a control channel based on the decoded at least one set of decoding candidates;
whereinthe UE-specific search space is a three-dimensional search space for the control channel, and a spatial dimension of the UE-specific search space is determined based on a number of spatial layers associated with the UE-specific search space and a transmit diversity order for the at least one set of decoding candidates.
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23. A radio access network node comprising:
a transceiver configured to select a decoding candidate from a set of decoding candidates for transmitting control information on a control channel, the set of decoding candidates being associated with at least one spatial layer within a UE-specific search space for a second transceiver, and the selected decoding candidate in the set of decoding candidates including at least one time-frequency control channel resource element, the transceiver being further configured to transmit, from the transceiver to the second transceiver, control information using the at least one time-frequency control channel resource element corresponding to the selected decoding candidate;
whereinthe UE-specific search space is a three-dimensional search space for the control channel, and a spatial dimension of the UE-specific search space is determined based on a number of spatial layers associated with the UE-specific search space and a transmit diversity order for the set of decoding candidates.
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24. A radio access network node comprising:
a transceiver configured to select a set of decoding candidates from among a plurality of sets of decoding candidates based on whether control information is to be transmitted with or without transmit diversity, the plurality of sets of decoding candidates including a first set of decoding candidates allocated for transmitting control information with transmit diversity and a second set of decoding candidates allocated for transmitting control information without transmit diversity, the first set of decoding candidates being associated with at least two spatial layers within a UE-specific search space for a second transceiver and the second set of decoding candidates being associated with at least one spatial layer within the UE-specific search space for the second transceiver, each decoding candidate in the first and second sets of decoding candidates including at least one time-frequency control channel resource element, the transceiver being further configured to select a decoding candidate from the selected set of decoding candidates, and transmit, from the transceiver to the second transceiver, the control information using the at least one time-frequency control channel resource element of the selected decoding candidate;
whereinthe UE-specific search space is a three-dimensional search space for a control channel, and a spatial dimension of the UE-specific search space is determined based on a number of spatial layers associated with the UE-specific search space and a transmit diversity order for the selected set of decoding candidates.
Specification