Method, apparatus and computer program for providing feedback
AssigneeNokia Technologies Oy
InventorsKari Juhani Hooli, Karol Schober, Timo Erkki Lunttila
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Abstract
There is provided an apparatus, said apparatus comprising means for determining, at a user equipment, one or more sets of candidate slots for physical downlink shared channel reception for which feedback information is to be provided in a given slot, receiving at least one indication of resources within one of the one or more sets of candidate slots for which feedback information is to be provided in the given slot, determining a feedback codebook based on the one or more sets of candidate slots and the indication and providing feedback information according to the feedback codebook.
Claims14
An apparatus comprising at least one processor and at least one memory, said at least one memory stored with computer program code thereon, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
- determine, at a user equipment, one or more sets of candidate slots for physical downlink shared channel reception for which feedback information is to be provided in a given slot;
- receive at least one indication of resources within one of the one or more sets of candidate slots for which feedback information is to be provided in the given slot;
- determine a feedback codebook based on the one or more sets of candidate slots and the at least one indication of resources;
- and
- provide feedback information according to the feedback codebook,
- wherein the at least one indication of resources comprises:
- an indication of serving cells in the resources within the candidate slots for which feedback information is to be provided,
- a bitmap of resources within the set of candidate slots for which feedback is provided, and
- an indication of a number of bits to be included in the feedback information, wherein the indication of the number of bits to be included in the feedback information comprises an integer fraction of a candidate slot set size,
- wherein the set size indicator comprises:
- a number of hybrid automatic repeat request acknowledgement bits to be included into hybrid automatic repeat request acknowledgement feedback for a physical downlink shared channel transmitted in candidate physical downlink shared channel scheduling sets, where the number of hybrid automatic repeat request acknowledgement bits is common for all serving cells in the candidate physical downlink shared channel scheduling sets, and
- an indication of the serving cells in the candidate physical downlink shared channel scheduling sets, for which hybrid automatic repeat request acknowledgement feedback will be provided.
An apparatus comprising at least one processor and at least one memory, said at least one memory stored with computer program code thereon, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
- provide at least one indication of resources to a user equipment for which feedback information is to be provided in a given slot, wherein the resources are within one of one or more sets of candidate slots for physical downlink shared channel reception at the user equipment which feedback information is to be provided in the given slot;
- and
- receive feedback information from the user equipment according to a feedback codebook based on the one or more sets of candidate slots and the at least one indication of resources,
- wherein the at least one indication of resources comprises:
- an indication of serving cells in the resources within the candidate slots for which feedback information is to be provided,
- a bitmap of resources within the set of candidate slots for which feedback is provided, and an indication of a number of bits to be included in the feedback information, wherein the indication of the number of bits to be included in the feedback information comprises an integer fraction of a candidate slot set size,
- wherein the set size indicator comprises:
- a number of hybrid automatic repeat request acknowledgement bits to be included into hybrid automatic repeat request acknowledgement feedback for a physical downlink shared channel transmitted in candidate physical downlink shared channel scheduling sets, where the number of hybrid automatic repeat request acknowledgement bits is common for all serving cells in the candidate physical downlink shared channel scheduling sets, and
- an indication of the serving cells in the candidate physical downlink shared channel scheduling sets, for which hybrid automatic repeat request acknowledgement feedback will be provided.
A method comprising:
- determining, at a user equipment, one or more sets of candidate slots for physical downlink shared channel reception for which feedback information is to be provided in a given slot;
- receiving at least one indication of resources within one of the one or more sets of candidate slots for which feedback information is to be provided in the given slot;
- determining a feedback codebook based on the one or more sets of candidate slots and the at least one indication of resources;
- and
- providing feedback information according to the feedback codebook,
- wherein the at least one indication of resources comprises:
- an indication of serving cells in the resources within the candidate slots for which feedback information is to be provided, and
- a bitmap of resources within the set of candidate slots for which feedback is provided, and an indication of a number of bits to be included in the feedback information, wherein the indication of the number of bits to be included in the feedback information comprises an integer fraction of a candidate slot set size,
- wherein the set size indicator comprises:
- a number of hybrid automatic repeat request acknowledgement bits to be included into hybrid automatic repeat request acknowledgement feedback for a physical downlink shared channel transmitted in candidate physical downlink shared channel scheduling sets, where the number of hybrid automatic repeat request acknowledgement bits is common for all serving cells in the candidate physical downlink shared channel scheduling sets, and
- an indication of the serving cells in the candidate physical downlink shared channel scheduling sets, for which hybrid automatic repeat request acknowledgement feedback will be provided.
Dependencies are inferred from the claim text.