Multiple-input multiple-output (MIMO) with relay nodes
First Claim
1. A method in a relay node, comprising:
- establishing an access link between the relay node and a user agent, the access link based on a first feedback loop that relies on layer 1 signaling of access link feedback information regarding the access link; and
establishing a relay link between the relay node and an access node, the relay link based on a second feedback loop that relies on higher layer signaling of relay link feedback information regarding the relay link, the higher layer signaling being higher than layer 1 signaling,wherein the relay link feedback information is transported less frequently via the relay link as compared to the access link feedback information used on the access link.
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Abstract
A method for providing multiple-input multiple-output (MIMO) feedback information and configuration information. The method includes transporting the MIMO feedback information, configuration information, or both over an uplink relay link using higher layer signaling. Also included is a method for providing uplink data transmission over an access link. The method includes transporting the uplink data over an uplink access link using orthogonal frequency-division multiplexing access (OFDMA). Also included is a relay node comprising a processor configured to promote transmitting MIMO feedback information, configuration information, or both over an uplink relay link using higher layer signaling. Also included is a user agent (UA) comprising a processor configured to promote transmitting uplink data over an uplink access link using OFDMA.
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Citations
22 Claims
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1. A method in a relay node, comprising:
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establishing an access link between the relay node and a user agent, the access link based on a first feedback loop that relies on layer 1 signaling of access link feedback information regarding the access link; and establishing a relay link between the relay node and an access node, the relay link based on a second feedback loop that relies on higher layer signaling of relay link feedback information regarding the relay link, the higher layer signaling being higher than layer 1 signaling, wherein the relay link feedback information is transported less frequently via the relay link as compared to the access link feedback information used on the access link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method in a relay node, comprising:
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establishing an access link between the relay node and a user agent, the access link based on a first feedback loop that relies on layer 1 signaling of access link feedback information regarding the access link; and establishing a relay link between the relay node and an access node, the relay link based on a second feedback loop that relies on higher layer signaling of relay link feedback information regarding the relay link, the higher layer signaling being higher than layer 1 signaling, wherein the relay link feedback information is transported using the higher layer signaling, and comprises more accurate channel estimation values or larger precoding matrices as compared to the access link feedback information that is transported using the layer 1 signaling.
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11. A method in a relay node, comprising:
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establishing an access link between the relay node and a user agent, the access link based on a first feedback loop that relies on layer 1 signaling of access link feedback information regarding the access link; and establishing a relay link between the relay node and an access node, the relay link based on a second feedback loop that relies on higher layer signaling of relay link feedback information regarding the relay link, the higher layer signaling being higher than layer 1 signaling, wherein the relay link feedback information is transported using the higher layer signaling, and comprises at least one index table that references more values associated with a precoding matrix indicator (PMI) or channel quality indicator (CQI) as compared to the access link feedback information that is transported using the layer 1 signaling.
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12. A relay node comprising:
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a processor configured to promote establishing an access link between the relay node and a user agent, the access link based on a first feedback loop that relies on layer 1 signaling of access link feedback information regarding the access link, wherein the processor is further configured to promote establishing a relay link between the relay node and an access node, the relay link based on a second closed-feedback loop that relies on higher layer signaling of relay link feedback information regarding the relay link, the higher layer signaling being higher than layer 1 signaling, wherein the relay link feedback information is transported less frequently via the relay link as compared to the access link feedback information used on the access link. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A relay node comprising:
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a processor configured to promote establishing an access link between the relay node and a user agent, the access link based on a first feedback loop that relies on layer 1 signaling of access link feedback information regarding the access link, wherein the processor is further configured to promote establishing a relay link between the relay node and an access node, the relay link based on a second feedback loop that relies on higher layer signaling of relay link feedback information regarding the relay link, the higher layer signaling being higher than layer 1 signaling, wherein the relay link feedback information is transported using the higher layer signaling, and comprises more accurate channel estimation or larger precoding matrices as compared to the access link feedback information that is transported using the layer 1 signaling.
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22. A relay node comprising:
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a processor configured to promote establishing an access link between the relay node and a user agent, the access link based on a first feedback loop that relies on layer 1 signaling of access link feedback information regarding the access link, wherein the processor is further configured to promote establishing a relay link between the relay node and an access node, the relay link based on a second feedback loop that relies on higher layer signaling of relay link feedback information regarding the relay link, the higher layer signaling being higher than layer 1 signaling, wherein the relay link feedback information is transported using the higher layer signaling, and comprises at least one index table that references more values associated with a precoding matrix indicator (PMI) or channel quality indicator (CQI) as compared to the access link feedback information that is transported using the layer 1 signaling.
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Specification