ADAPTIVE UL-DL TDD CONFIGURATIONS IN A HETEROGNEOUS NETWORK
First Claim
1. A method for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet), comprising:
- determining a preferred adaptive UL-DL configuration;
receiving, at a reference enhanced Node B (eNB), node configuration information for at least one neighboring node; and
reconfiguring an adaptive UL-DL configuration for at least one of the reference eNB and the at least one neighboring node based on the node configuration information and sounding reference signal (SRS) subframe scheduling of the reference eNB and the at least one neighboring node.
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Accused Products
Abstract
Technology for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet) is disclosed. One method can include a reference enhanced Node B (eNB) determining a preferred adaptive UL-DL configuration. The eNB can receive node configuration information for at least one neighboring node. The eNB can reconfigure an adaptive UL-DL configuration for at least one of the reference eNB and the at least one neighboring node based on the node configuration information and sounding reference signal (SRS) subframe scheduling of the reference eNB and the at least one neighboring eNB.
297 Citations
29 Claims
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1. A method for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet), comprising:
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determining a preferred adaptive UL-DL configuration; receiving, at a reference enhanced Node B (eNB), node configuration information for at least one neighboring node; and reconfiguring an adaptive UL-DL configuration for at least one of the reference eNB and the at least one neighboring node based on the node configuration information and sounding reference signal (SRS) subframe scheduling of the reference eNB and the at least one neighboring node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A node device of a node configured to adapt uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet), comprising:
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a transceiver module to receive node configuration information for at least one neighboring node and transmit a UL-DL configuration to the at least one neighboring node; and a processing module to reconfigure an adaptive UL-DL configuration for at least one of a plurality of nodes including the at least one neighboring node based on the node configuration information, wherein the plurality of nodes use a common cell identity or distinct cell identities, and reconfiguring the adaptive UL-DL configuration includes changing a flexible subframe (FlexSF) from an uplink (UL) to a downlink (DL). - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. At least one non-transitory machine readable storage medium comprising a plurality of instructions adapted to be executed to implement a method for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet), comprising:
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grouping a plurality of nodes into interference management (IM) clusters when a pathloss of node-to-node channels is above a specified threshold; generating a preferred adaptive UL-DL configuration for each of the IM clusters, wherein at least one preferred adaptive UL-DL configuration includes a flexible subframe (FlexSF) configured to switch between an uplink (UL) subframe and a downlink (DL) subframe; reconfiguring the adaptive UL-DL configuration for each of the IM clusters to provide backward compatibility based on the node configuration information and sounding reference signal (SRS) subframe scheduling; and transmitting the adaptive UL-DL reconfiguration to at least one node in a selected IM cluster via a backhaul link via a wired connection, a wireless connection, or an optical fiber connection. - View Dependent Claims (26, 27, 28, 29)
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Specification