Dynamical time division duplex uplink and downlink configuration in a communications network
First Claim
1. A user equipment (UE) operable to dynamically change an uplink/downlink (UL/DL) configuration in a communications network, the UE comprising one or more processors and memory configured to:
- request a radio resource control (RRC) connection with an enhanced node B (eNode B);
communicate, to the eNode B, a UE Capability Information information element (IE) to indicate an enhanced interference mitigation and traffic adaptation (eIMTA) capability of the UE to support an eIMTA time duplex domain (TDD) UL/DL reconfiguration functionality;
receive, at the UE, eIMTA configuration information within a RRCConnectionSetup message or a RRCConnectionReconfiguration message, wherein the RRCConnectionSetup message or the RRCConnectionReconfiguration message includes an eIMTA Radio-Network Temporary Identifier (RNTI) and an UL/DL configuration indicator field index within an UL/DL reconfiguration physical downlink control channel (PDCCH) associated with a serving cell; and
decode, at the UE, the UL/DL reconfiguration PDCCH with a cyclic redundancy check (CRC) scrambled by the eIMTA-RNTI.
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Accused Products
Abstract
A technology is disclosed for a user equipment (UE) that is operable to dynamically change an uplink/downlink (UL/DL) configuration in a communications network. A radio resource control (RRC) connection can be requested with an enhanced node B (eNode B). A UE Capability Information information element (IE) can be communicated to the eNode B to indicate an enhanced interference mitigation and traffic adaptation (eIMTA) capability of the UE to support an eIMTA time duplex domain (TDD) UL/DL reconfiguration functionality. An eIMTA configuration information can be received at the UE information within a RRCConnectionSetup message or a RRCConnectionReconfiguration message.
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Citations
26 Claims
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1. A user equipment (UE) operable to dynamically change an uplink/downlink (UL/DL) configuration in a communications network, the UE comprising one or more processors and memory configured to:
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request a radio resource control (RRC) connection with an enhanced node B (eNode B); communicate, to the eNode B, a UE Capability Information information element (IE) to indicate an enhanced interference mitigation and traffic adaptation (eIMTA) capability of the UE to support an eIMTA time duplex domain (TDD) UL/DL reconfiguration functionality; receive, at the UE, eIMTA configuration information within a RRCConnectionSetup message or a RRCConnectionReconfiguration message, wherein the RRCConnectionSetup message or the RRCConnectionReconfiguration message includes an eIMTA Radio-Network Temporary Identifier (RNTI) and an UL/DL configuration indicator field index within an UL/DL reconfiguration physical downlink control channel (PDCCH) associated with a serving cell; and decode, at the UE, the UL/DL reconfiguration PDCCH with a cyclic redundancy check (CRC) scrambled by the eIMTA-RNTI. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An enhanced node B (eNode B) operable to dynamically change a time duplex domain (TDD) uplink/downlink (UL/DL) configuration in a communications network, the eNode B comprising one or more processors and memory configured to:
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establish a radio resource control connection with a user equipment (UE); receive, from the UE, a UE Capability Information information element (IE) to indicate an enhanced interference mitigation and traffic adaptation (eIMTA) capability of the UE; determine support of eIMTA functionality by the UE based on the UE Capability Information IE; and configure radio resource control (RRC) parameters for performing an eIMTA UL/DL reconfiguration of the UE, wherein the RRC parameters include an eIMTA Radio-Network Temporary Identifier (RNTI) and an UL/DL configuration indicator field index within an UL/DL reconfiguration physical downlink control channel (PDCCH) associated with a serving cell, and the UE is configured to decode the UL/DL reconfiguration PDCCH with a cyclic redundancy check (CRC) scrambled by the eIMTA-RNTI. - View Dependent Claims (15, 16)
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17. A method for dynamically changing an uplink /downlink (UL/DL) ratio in a communications network, comprising:
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requesting a radio resource control (RRC) connection with an enhanced node B (eNode B); communicating, to the eNode B, a user equipment (UE) Capability Information message to indicate an enhanced interference mitigation and traffic adaptation (eIMTA) capability of the UE to support an eIMTA time duplex domain (TDD) UL/DL reconfiguration functionality; and receiving, at the UE, eIMTA configuration information within a RRCConnectionSetup message or a RRCConnectionReconfiguration message, wherein the RRCConnectionSetup message or the RRCConnectionReconfiguration message includes an eIMTA Radio-Network Temporary Identifier (RNTI) and an UL/DL configuration indicator field index within an UL/DL reconfiguration physical downlink control channel (PDCCH) associated with a serving cell. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification