Control and data plane solutions for carrier-aggregation based WLAN offload
First Claim
1. A method performed by an evolved Node B (eNB) for offloading data flows from a primary network to a secondary network, the method comprising:
- providing an aggregation function configured to transfer data between a primary network interface and a secondary network interface, wherein the secondary network interface is operably coupled to a Wireless Fidelity (Wi-Fi) transceiver, and wherein the secondary network is a Wireless Local Area Network (WLAN) operating according to a standard from the IEEE 802.11 standards family;
offloading data from a primary data flow within the primary network interface based on network condition measurements in the primary network, by transferring the data to a secondary data flow within the secondary network interface using the aggregation function, wherein offloading data is controlled by signaling received from a Radio Resource Control (RRC) protocol layer in the primary network interface, and wherein offloading data occurs at a user plane layer of the primary network interface; and
tunneling the data from a Layer 2 level of the primary network interface, via the secondary data flow over the secondary network, using the secondary network interface;
wherein the tunneled data is identifiable as offloaded from the primary network.
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Accused Products
Abstract
Systems and methods for controlling data traffic offload to a WLAN (e.g., a Wi-Fi network) from a WWAN (e.g., a 4G LTE network) are generally disclosed herein. One embodiment includes data traffic offload techniques managed by a Radio Resource Control (RRC) in a networked device including offloading data at the IP, PDCP, RLC, or MAC layers; another embodiment includes data traffic offload techniques managed by a MAC Scheduler with RRC control. Configurations for multimode user equipment (UE) and multimode base stations are also described herein, including configurations for implementing a Multiple Radio Access Technology (Multi-RAT) aggregation function to offload data from a WWAN to a WLAN and transmit the data via the WLAN using a Layer 2 transport.
30 Citations
22 Claims
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1. A method performed by an evolved Node B (eNB) for offloading data flows from a primary network to a secondary network, the method comprising:
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providing an aggregation function configured to transfer data between a primary network interface and a secondary network interface, wherein the secondary network interface is operably coupled to a Wireless Fidelity (Wi-Fi) transceiver, and wherein the secondary network is a Wireless Local Area Network (WLAN) operating according to a standard from the IEEE 802.11 standards family; offloading data from a primary data flow within the primary network interface based on network condition measurements in the primary network, by transferring the data to a secondary data flow within the secondary network interface using the aggregation function, wherein offloading data is controlled by signaling received from a Radio Resource Control (RRC) protocol layer in the primary network interface, and wherein offloading data occurs at a user plane layer of the primary network interface; and tunneling the data from a Layer 2 level of the primary network interface, via the secondary data flow over the secondary network, using the secondary network interface; wherein the tunneled data is identifiable as offloaded from the primary network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An evolved Node B eNodeB, comprising:
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physical-layer circuitry that provides a primary network interface to communicate with a primary network in accordance with a 3GPP Long Term Evolution (LTE) or LTE-Advanced (LTE-A) standard, the primary network interface providing a Radio Resource Control (RRC) protocol layer; physical-layer circuitry that provides a secondary network interface to communicate with a secondary network, wherein the secondary network interface is operably coupled to a Wireless Fidelity (Wi-Fi) transceiver, and wherein the secondary network is a Wireless Local Area Network (WLAN) operating according to a standard from the IEEE 802.11 standards family; and physical-layer circuitry to offload data flows from the primary network to the secondary network using an aggregation function, the aggregation function to transfer data in the data flows with operations that; offload data from the primary network interface to a data flow within the secondary network interface based on network condition measurements in the primary network, wherein the offload of data is controlled by signaling received from the RRC protocol layer, and wherein the offload of data occurs at a user plane layer of the primary network interface; and tunnel the data from a Layer 2 level of the primary network interface, via the secondary network using the secondary network interface; wherein the tunneled data on the secondary network is identifiable as offloaded from the primary network. - View Dependent Claims (11, 12, 13, 14)
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15. At least one non-transitory machine-readable medium, comprising a plurality of instructions that, responsive to being executed with circuitry of a machine, cause the machine to perform operations that:
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provide an aggregation function configured to transfer data between a primary network interface of a primary network and a secondary network interface of a secondary network, wherein the secondary network interface is operably coupled to a Wireless Fidelity (Wi-Fi) transceiver, and wherein the secondary network is a Wireless Local Area Network (WLAN) operating according to a standard from the IEEE 802.11 standards family; offload data from a primary data flow within the primary network interface based on network condition measurements in the primary network, by transferring the data to a secondary data flow within the secondary network interface using the aggregation function, wherein the offload of data is controlled by signaling received from a Radio Resource Control (RRC) protocol layer in the primary network interface, and wherein the offload of data occurs at a user plane layer of the primary network interface; and tunnel the data from a Layer 2 level of the primary network interface, via the secondary data flow over the secondary network, using the secondary network interface; wherein the tunneled data is identifiable as offloaded from the primary network. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification