APPARATUSES, METHODS AND COMPUTER PROGRAMS FOR DETERMINING TRANSMISSION CONTROL INFORMATION
First Claim
1. Apparatus for a base band unit of a base station transceiver of a mobile communication system, the base station transceiver further comprising one or more radio units configured to wirelessly communicate with the base band unit using one or more wireless fronthaul links, the apparatus comprising:
- at least one output configured to transmit a downlink component of the one or more wireless fronthaul links to the one or more radio units;
at least one input configured to receive an uplink component of the one or more wireless fronthaul links from the one or more radio units; and
a control module configured to;
control the at least one output and the at least one input,transmit a reference signal via the at least one output to the one or more radio units,receive a loopback version of the reference signal via the at least one input from the one or more radio units,determine information related to a per-radio unit transmission power to be used by the one or more radio units for transmissions on the one or more wireless fronthaul links using an attenuation of the reference signal determined based on the loopback version of the reference signal,determine transmission control information comprising the information related to the per-radio unit transmission power, andprovide the transmission control information to the one or more radio units via the at least one output.
1 Assignment
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Accused Products
Abstract
Embodiments relate to apparatuses (10; 20), methods and computer programs for determining transmission control information. The Apparatus (10) is suitable for a base band unit (110) of a base station transceiver (100) of a mobile communication system (300), the base station transceiver (100) further comprising one or more radio units (120) configured to wirelessly communicate with the base band unit (110) using one or more wireless fronthaul links. The apparatus (10) comprises at least one output (12) configured to transmit a downlink component of the one or more wireless fronthaul links to the one or more radio units (120). The apparatus (10) further comprises at least one input (14) configured to receive an uplink component of the one or more wireless fronthaul links from the one or more radio units (120). The apparatus (10) further comprises a control module (16) configured to control the at least one output (12) and the at least one input (14). The control module (16) is further configured to transmit a reference signal via the at least one output (12) to the one or more radio units (120). The control module (16) is further configured to receive a loopback version of the reference signal via the at least one input (14) from the one or more radio units (120). The control module (16) is further configured to determine transmission control information based on an attenuation of the reference signal determined based on the loopback version of the reference signal. The transmission control information comprises information related to a per-radio unit transmission power to be used by the one or more radio units (120) for transmissions on the one or more wireless fronthaul links. The control module (16) is further configured to provide the transmission control information to the one or more radio units (120) via the at least one output (12).
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Citations
16 Claims
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1. Apparatus for a base band unit of a base station transceiver of a mobile communication system, the base station transceiver further comprising one or more radio units configured to wirelessly communicate with the base band unit using one or more wireless fronthaul links, the apparatus comprising:
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at least one output configured to transmit a downlink component of the one or more wireless fronthaul links to the one or more radio units; at least one input configured to receive an uplink component of the one or more wireless fronthaul links from the one or more radio units; and a control module configured to; control the at least one output and the at least one input, transmit a reference signal via the at least one output to the one or more radio units, receive a loopback version of the reference signal via the at least one input from the one or more radio units, determine information related to a per-radio unit transmission power to be used by the one or more radio units for transmissions on the one or more wireless fronthaul links using an attenuation of the reference signal determined based on the loopback version of the reference signal, determine transmission control information comprising the information related to the per-radio unit transmission power, and provide the transmission control information to the one or more radio units via the at least one output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Apparatus for a radio unit of a base station transceiver of a mobile communication system, the base station transceiver further comprising a base band unit wirelessly communicating with the radio unit using a wireless fronthaul link, the apparatus comprising:
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at least one input configured to receive a downlink component of the wireless fronthaul link from the base band unit; at least one output configured to transmit an uplink component of the wireless fronthaul links to the base band unit; and a control module configured to; control the at least one input and the at least one output, receive a reference signal via the at least one input from the base band unit, loopback a loopback version of the received reference signal via the at least one output to the base band unit, receive transmission control information from the base band unit, wherein the transmission control information comprises information related to a per-radio unit transmission power to be used by the radio unit for transmissions on the wireless fronthaul link, and adapt the transmission power of the uplink component via the at least one output based on the transmission control information. - View Dependent Claims (12)
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13. Method for a base band unit of a base station transceiver of a mobile communication system, the base station transceiver further comprising one or more radio units configured to wirelessly communicate with the base band unit using one or more wireless fronthaul links, the method comprising:
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transmitting a reference signal to the one or more radio units; receiving a loopback version of the reference signal from the one or more radio units; determining information related to a per-radio unit transmission power to be used by the one or more radio units for transmissions on the one or more wireless fronthaul links using an attenuation of the reference signal determined based on the loopback version of the reference signal; determining transmission control information comprising the information related to the per-radio unit transmission power; and providing the transmission control information to the one or more radio units. - View Dependent Claims (15)
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14. Method for a radio unit of a base station transceiver of a mobile communication system, the base station transceiver further comprising a base band unit wirelessly communicating with the radio unit using a wireless fronthaul link, the method comprising:
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receiving a reference signal from the base band unit; looping back a loopback version of the received reference signal to the base band unit; receiving transmission control information from the base band unit, wherein the transmission control information comprises information related to a per-radio unit transmission power to be used by the radio unit for transmissions on the wireless fronthaul link; and adapting the transmission power for transmissions on the wireless fronthaul link based on the transmission control information. - View Dependent Claims (16)
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Specification