Communication in a heterogeneous network with carrier aggregation
AssigneeQUALCOMM Incorporated
InventorsDurga Prasad Malladi, Yongbin Wei, Aleksandar Damnjanovic, Naga Bhushan
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Abstract
A communication environment with carrier aggregation (CA) is disclosed in which a UE is configured for communication at a first time with a first network node via a primary component carrier (PCC) and a second network node via a secondary CC (SCC). At a second time, the UE is configured for communication with a third network node via the SCC at a second time. The UE maintains communication with the first network node via the PCC without triggering handover at the UE during the establishing communication with the third network node.
Claims20
A method for wireless communication, comprising:
- obtaining first symbol estimates for a first uplink transmission sent on a primary component carrier (PCC) from a user equipment (UE) to a first network node;
- obtaining second symbol estimates for the first uplink transmission from a second network node receiving the first uplink transmission, the UE concurrently communicating with the first network node on the PCC and with the second network node on a secondary CC (SCC);
- combining the first and second symbol estimates to obtain first combined symbol estimates for the first uplink transmission;
- and
- decoding the first combined symbol estimates to recover data sent in the first uplink transmission by the UE.
An apparatus for wireless communication, comprising:
- means for obtaining first symbol estimates for a first uplink transmission sent on a primary component carrier (PCC) from a user equipment (UE) to a first network node;
- means for obtaining second symbol estimates for the first uplink transmission from a second network node receiving the first uplink transmission, the UE concurrently communicating with the first network node on the PCC and with the second network node on a secondary CC (SCC);
- means for combining the first and second symbol estimates to obtain first combined symbol estimates for the first uplink transmission;
- and
- means for decoding the first combined symbol estimates to recover data sent in the first uplink transmission by the UE.
A computer program product for wireless communications in a wireless network, comprising:
- a non-transitory computer-readable medium having program code recorded thereon, the program code including:
- program code for causing a computer to obtain first symbol estimates for a first uplink transmission sent on a primary component carrier (PCC) from a user equipment (UE) to a first network node;
- program code for causing a computer to obtain second symbol estimates for the first uplink transmission from a second network node receiving the first uplink transmission, the UE concurrently communicating with the first network node on the PCC and with the second network node on a secondary CC (SCC);
- program code for causing a computer to combine the first and second symbol estimates to obtain first combined symbol estimates for the first uplink transmission;
- and
- program code for causing a computer to decode the first combined symbol estimates to recover data sent in the first uplink transmission by the UE.
An apparatus configured for wireless communication, the apparatus comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor,
- wherein the at least one processor is configured:
- to obtain first symbol estimates for a first uplink transmission sent on a primary component carrier (PCC) from a user equipment (UE) to a first network node;
- to obtain second symbol estimates for the first uplink transmission from a second network node receiving the first uplink transmission, the UE concurrently communicating with the first network node on the PCC and with the second network node on a secondary CC (SCC);
- to combine the first and second symbol estimates to obtain first combined symbol estimates for the first uplink transmission;
- and
- to decode the first combined symbol estimates to recover data sent in the first uplink transmission by the UE.
Dependencies are inferred from the claim text.