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US 2012/0057482 A1Published application
Unified feedback framework for mu-mimo enhancement based on indication of preferred precoder pairings
AssigneeQUALCOMM Incorporated
InventorsStefan Geirhofer, Peter Gaal
Life of this patent
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Abstract
Certain aspects of the present disclosure relate to techniques for generating unified feedback framework for Multi User Multiple Input Multiple Output (MU-MIMO) enhancement based on indication of a preferred precoder pairings.
Claims46
A method for wireless communications, comprising:
- generating, at a first user device, a feedback report with unified structure for single user (SU) and multi user (MU) communications,
- wherein a layer indicated in the feedback report is associated with an anticipated transmission by a scheduling apparatus to a second user device performed simultaneously with another anticipated transmission by the scheduling apparatus to the first user device;
- and
- transmitting the feedback report to the scheduling apparatus.
1 more element
An apparatus for wireless communications, comprising:
- means for generating a feedback report with unified structure for single user (SU) and multi user (MU) communications,
- wherein a layer indicated in the feedback report is associated with an anticipated transmission by a scheduling apparatus to another apparatus performed simultaneously with another anticipated transmission by the scheduling apparatus to the apparatus;
- and
- means for transmitting the feedback report to the scheduling apparatus.
1 more element
An apparatus for wireless communications, comprising:
- a first circuit configured to generate a feedback report with unified structure for single user (SU) and multi user (MU) communications,
- wherein a layer indicated in the feedback report is associated with an anticipated transmission by a scheduling apparatus to another apparatus performed simultaneously with another anticipated transmission by the scheduling apparatus to the apparatus;
- and
- a transmitter configured to transmit the feedback report to the scheduling apparatus.
1 more element
A computer readable medium containing executable instructions for wireless communications, the executable instructions comprising instructions for:
- generating, at a first user device, a feedback report with unified structure for single user (SU) and multi user (MU) communications,
- wherein a layer indicated in the feedback report is associated with an anticipated transmission by a scheduling apparatus to a second user device performed simultaneously with another anticipated transmission by the scheduling apparatus to the first user device;
- and
- transmitting the feedback report to the scheduling apparatus.
1 more element
An access terminal, comprising:
- at least one antenna;
- a first circuit configured to generate a feedback report with unified structure for single user (SU) and multi user (MU) communications,
- wherein a layer indicated in the feedback report is associated with an anticipated transmission by an access point to another access terminal performed simultaneously with another anticipated transmission by the scheduling apparatus to the access terminal;
- and
- a transmitter configured to transmit, via the at least one antenna, the feedback report to the access point.
2 more elements
A method for wireless communications, comprising:
- receiving, at a scheduling apparatus from a plurality of apparatuses, feedback reports with unified structure for single user (SU) and multi user (MU) communications;
- and
- identifying, based on the feedback reports, at least two of the apparatuses for potential simultaneous transmissions from the scheduling apparatus to the at least two apparatuses,
- wherein information in a first of the feedback reports transmitted from a first of the at least two apparatuses matches information in a second of the feedback reports transmitted from a second of the at least two apparatuses.
1 more element
An apparatus for wireless communications, comprising:
- means for receiving, from a plurality of apparatuses, feedback reports with unified structure for single user (SU) and multi user (MU) communications;
- and
- means for identifying, based on the feedback reports, at least two of the apparatuses for potential simultaneous transmissions from the apparatus to the at least two apparatuses,
- wherein information in a first of the feedback reports transmitted from a first of the at least two apparatuses matches information in a second of the feedback reports transmitted from a second of the at least two apparatuses.
1 more element
An apparatus for wireless communications, comprising:
- a receiver configured to receive, from a plurality of apparatuses, feedback reports with unified structure for single user (SU) and multi user (MU) communications;
- and
- a first circuit configured to identify, based on the feedback reports, at least two of the apparatuses for potential simultaneous transmissions from the apparatus to the at least two apparatuses,
- wherein information in a first of the feedback reports transmitted from a first of the at least two apparatuses matches information in a second of the feedback reports transmitted from a second of the at least two apparatuses.
1 more element
A computer readable medium containing executable instructions for wireless communications, the executable instructions comprising instructions for:
- receiving, at a scheduling apparatus from a plurality of apparatuses, feedback reports with unified structure for single user (SU) and multi user (MU) communications;
- and
- identifying, based on the feedback reports, at least two of the apparatuses for potential simultaneous transmissions from the scheduling apparatus to the at least two apparatuses,
- wherein information in a first of the feedback reports transmitted from a first of the at least two apparatuses matches information in a second of the feedback reports transmitted from a second of the at least two apparatuses.
1 more element
An access point, comprising:
- at least one antenna;
- a receiver configured to receive, from a plurality of access terminals via the at least one antenna, feedback reports with unified structure for single user (SU) and multi user (MU) communications;
- and
- a first circuit configured to identify, based on the feedback reports, at least two of the access terminals for potential simultaneous transmissions from the access point to the at least two access terminals,
- wherein information in a first of the feedback reports transmitted from a first of the at least two access terminals matches information in a second of the feedback reports transmitted from a second of the at least two access terminals.
2 more elements
Dependencies are inferred from the claim text.