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US 9,854,478 B2Granted
Techniques for switching bearers between radio access technologies (RATS)
AssigneeQUALCOMM Incorporated
InventorsOzcan Ozturk, Vikas Jain, Ajay Gupta, Abhijit Khobare, Gavin Bernard Horn
Life of this patent
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Abstract
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus serves data to a UE or receives data from the UE via a first communication link that uses a first RAT, transmits a configuration message to the UE indicating that data will be served or received via a second communication link that uses a second RAT, and initiates a configuration procedure to switch service or reception of data from the first communication link that uses the first RAT to the second communication link that uses the second RAT.
Claims25
A method of wireless communication of a base station, comprising:
- serving data to a user equipment (UE) or receiving data from the UE via a first communication link that uses a first radio access technology (RAT);
- transmitting a configuration message to the UE indicating that data will be served or received via a second communication link that uses a second RAT;
- transmitting at least one first protocol layer status report to the UE, the first protocol status report being associated with one or more downlink packets sent by the base station;
- determining unacknowledged data of the data served to the UE using the first RAT based on at least one second protocol layer status report received from the UE;
- and
- initiating a configuration procedure to switch service or reception of only the unacknowledged data from the first communication link that uses the first RAT to the second communication link that uses the second RAT, wherein the at least one first protocol layer status report is transmitted on a data bearer that is being switched to the second RAT.
3 more elements
A method of wireless communication of a user equipment (UE), comprising:
- receiving first data served from a network or transmitting second data to the network via a first communication link that uses a first radio access technology (RAT);
- receiving a configuration message from the network indicating that the first data will be served from the network or the second data will be transmitted to the network via a second communication link that uses a second RAT;
- receiving at least one first protocol layer status report from the network, the at least one first protocol status report being associated with the first data served to the network or the second data transmitted to the network;
- transmitting at least one second protocol layer status report to the network, the at least one second protocol status report being associated with the first data served to the network or the second data transmitted to the network;
- configuring at least one protocol layer based on the received configuration message to receive the first data served from the network or transmit the second data to the network via the second communication link that uses the second RAT;
- receiving the first data served from the network or transmitting the second data to the network via the second communication link that uses the second RAT;
- and
- transmitting only unacknowledged data of the second data originally transmitted to the network via the first communication link that uses the first RAT to the network via the second communication link that uses the second RAT, wherein the at least one first protocol layer status report is received on a data bearer that is being switched to the second RAT.
5 more elements
An apparatus for wireless communication, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- serve data to a user equipment (UE) or receive data from the UE via a first communication link that uses a first radio access technology (RAT);
- transmit at least one first protocol layer status report to the UE, the first protocol status report being associated with one or more downlink packets sent by a base station;
- transmit a configuration message to the UE indicating that data will be served or received via a second communication link that uses a second RAT;
- determine unacknowledged data of the data served to the UE using the first RAT based on at least one second protocol layer status report received from the UE;
- and
- initiate a configuration procedure to switch service or reception of only the unacknowledged data from the first communication link that uses the first RAT to the second communication link that uses the second RAT, wherein the at least one first protocol layer status report is transmitted on a data bearer that is being switched to the second RAT.
6 more elements
Dependencies are inferred from the claim text.