Base station signaling in a wireless network
First Claim
Patent Images
1. 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.
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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.
205 Citations
30 Claims
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1. A method comprising:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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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. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A system comprising:
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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. - View Dependent Claims (15, 16, 17, 18)
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19. A first base station comprising:
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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. - View Dependent Claims (20, 21, 22, 23)
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24. A second base station comprising:
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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. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification