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US 9,867,178 B2Granted
Base station signaling in a wireless network
AssigneeComcast Cable Communications, LLC
InventorEsmael Hejazi Dinan
Life of this patent
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Abstract
A serving base station transmits to a target base station a first message comprising a parameter indicating whether a wireless device supports an enhanced physical downlink control channel (ePDCCH). The serving base station receives from the target base station a second message comprising parameters indicating: a configuration of a subset of subframes in which first radio resources of a first ePDCCH are configured; and a starting OFDM symbol of the first ePDCCH in the subset of subframes. The serving base station transmits a third message to the wireless device comprising the configuration information of the first ePDCCH.
Claims30
A method comprising:
- transmitting, by a first base station and to a second base station, a first message indicating that a wireless device supports an enhanced physical downlink control channel (ePDCCH);
- receiving, from the second base station, one or more configuration parameters that indicate:
- a configuration of a first ePDCCH occurring in one or more, but less than all, subframes of a frame of a carrier supported by the second base station;
- and
- a starting orthogonal frequency division multiplexing (OFDM) symbol of the first ePDCCH;
- and
- transmitting, to the wireless device, a second message comprising an indication of the configuration of the first ePDCCH and the starting OFDM symbol of the first ePDCCH.
4 more elements
A method comprising:
- receiving, by a second base station and from a first base station, a first message indicating that a wireless device supports an enhanced physical downlink control channel (ePDCCH);
- transmitting, by the second base station and to the first base station, one or more configuration parameters that indicate:
- a configuration of a first ePDCCH occurring in one or more, but less than all, subframes of a carrier supported by the second base station;
- and
- a starting orthogonal frequency division multiplexing (OFDM) symbol of the first ePDCCH;
- and
- communicating by the second base station and with the wireless device in accordance with the configuration of the first ePDCCH and the starting OFDM symbol of the first ePDCCH.
4 more elements
A system comprising:
- a first base station comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors of the first base station, cause the first base station to:
- transmit, to a second base station, a first message indicating that a wireless device supports an enhanced physical downlink control channel (ePDCCH);
- receive, from the second base station, one or more configuration parameters that indicate:
- a configuration of a first ePDCCH occurring in one or more, but less than all, subframes of a frame of a carrier supported by the second base station;
- and
- a starting orthogonal frequency division multiplexing (OFDM) symbol of the first ePDCCH;
- and
- transmit, to the wireless device, a second message comprising an indication of the configuration of the first ePDCCH and the starting OFDM symbol of the first ePDCCH;
- and
- the second base station comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors of the second base station, cause the second base station to:
- receive the first message;
- transmit the one or more configuration parameters to the first base station;
- and
- communicate with the wireless device via the first ePDCCH.
17 more elements
A first base station comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the first base station to:
- transmit, to a second base station, a first message indicating that a wireless device supports an enhanced physical downlink control channel (ePDCCH);
- receive, from the second base station, one or more configuration parameters that indicate:
- a configuration of a first ePDCCH occurring in one or more, but less than all, subframes of a frame of a carrier supported by the second base station;
- and
- a starting orthogonal frequency division multiplexing (OFDM) symbol of the first ePDCCH;
- and
- transmit, to the wireless device, a second message comprising an indication of the configuration of the first ePDCCH and the starting OFDM symbol of the first ePDCCH.
7 more elements
A second base station comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the second base station to:
- receive, from a first base station, a first message indicating that a wireless device supports an enhanced physical downlink control channel (ePDCCH);
- transmit, to the first base station, one or more configuration parameters that indicate:
- a configuration of a first ePDCCH occurring in one or more, but less than all, subframes of a carrier supported by the second base station;
- and
- a starting orthogonal frequency division multiplexing (OFDM) symbol of the first ePDCCH;
- and
- communicate with the wireless device in accordance with the configuration of the first ePDCCH and the starting OFDM symbol of the first ePDCCH.
7 more elements
Dependencies are inferred from the claim text.