Method and apparatus for selecting uplink cell
AssigneeLG Electronics Inc.
InventorsYunjung Yi, Joonkui Ahn
Life of this patent
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Abstract
The present invention related to a method for selecting an uplink cell and an user equipment using the method. The method includes receiving a downlink signal from at least cell of multiple cells, wherein the multiple cells are connected each other via a backhaul, selecting an uplink cell among the multiple cells by selecting a uplink grant for the uplink cell from uplink grants for at least one of the multiple cells, and transmitting a signal to the selected uplink cell.
Claims20
A method for a user equipment (UE) selecting an uplink cell, the method comprising:
- transmitting a buffer status report (BSR) to at least one first uplink cell among multiple cells that are connected to each other via a backhaul;
- receiving at least one first uplink grant from the at least one first uplink cell;
- selecting at least one second uplink grant from among the at least one first uplink grant, the selection based on a modulation and coding scheme (MCS) of the at least one first uplink grant;
- selecting at least one second uplink cell that transmits the selected at least one second uplink grant from among the at least one first uplink cell;
- and
- transmitting a first signal to the selected at least one second uplink cell.
A user equipment (UE) configured with multiple cells, the UE comprising:
- a radio frequency (RF) unit for transmitting and receiving signals;
- and
- a processor operatively coupled to the RF unit for:
- controlling the RF unit to transmit a buffer status report (BSR) to at least one first uplink cell among multiple cells that are connected to each other via a backhaul;
- controlling the RF unit to receive at least one first uplink grant from the at least one first uplink cell;
- selecting at least one second uplink grant from among the at least one first uplink grant, the selection based on a modulation and coding scheme (MCS) of the at least one first uplink grant;
- selecting at least one second uplink cell that transmits the selected at least one second uplink grant from among the at least one first uplink cell;
- and
- controlling the RF unit to transmit a first signal to the selected at least one second uplink cell
- that transmits the selected at least one second uplink grant from among the at least one first uplink cell;
- and
- transmitting a first signal to the selected at least one second uplink cell.
Dependencies are inferred from the claim text.