Method for managing enhanced physical downlink control channel, wireless communication network, computer programs and computer program products
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorAnders Johansson
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Abstract
The application relates to a method (60) for managing enhanced physical downlink control channel, EPDCCH, resources used in a wireless communications network (1) for transmitting scheduling assignments. The method (60) comprises establishing (61) a measure on load in the wireless communications network (1), and controlling (62) assigning one or more user terminals (3) to use EPDCCH resources based on the established measure on load. A corresponding wireless communications network (1) is provided, as well as computer programs and computer program products.
Claims16
A method for managing enhanced physical downlink control channel, EPDCCH, resources used in a wireless communications network for transmitting scheduling assignments, the method comprising:
- establishing a measure on load in a cell of the wireless communications network;
- controlling a use of EPDCCH resources based on the established measure on load, wherein the controlling the use of EPDCCH resources comprises not using any EPDCCH resource to transmit control information to an EPDCCH capable user terminal while the measure on load is below a first threshold;
- detecting that no EPDCCH resources or other resources are assigned in a set of one or more orthogonal frequency division multiplexing (OFDM) symbols;
- and
- in response to detecting that no EPDCCH resources or other resources are assigned in the set of one or more OFDM symbols, causing one or more power amplifiers of a base station to enter a low power or no power mode during the set of one or more OFDM symbols.
A wireless communications network node for managing enhanced physical downlink control channel (EPDCCH) resources used in a wireless communications network for transmitting scheduling assignments, the wireless communications network node comprising:
- a memory;
- and
- processing circuitry coupled to the memory, wherein the wireless communications network node is configured to:
- establish a measure on load in a cell of the wireless communications network,
- control a use of EPDCCH resources based on the established measure on load, wherein the wireless communications network is configured to control the use of EPDCCH resources by performing a process that includes not using any EPDCCH resource to transmit control information to an EPDCCH capable user terminal while the measure on load is below the first threshold;
- detect whether there are no EPDCCH resources or other resources are assigned in certain orthogonal frequency division multiplexing (OFDM) symbols;
- and
- cause one or more power amplifiers of a base station to enter a low power or no power mode during the certain OFDM symbols as a result of detecting that no EPDCCH resources or other resources are assigned in the certain OFDM symbols.
Dependencies are inferred from the claim text.