Subscriber unit for managing dual wireless communication links
First Claim
1. A subscriber unit comprising:
- a processor configured to select, based on a presence of first user data, a subset of a plurality of code division multiple access (CDMA) physical channels available for transmission of user data from the subscriber unit to a cellular network;
a cellular transceiver configured to use the selected subset of the plurality of CDMA physical channels to transmit the first user data from the subscriber unit to the cellular network; and
an IEEE 802.11 transceiver,wherein the processor is further configured to maintain a communication session with the cellular network when the plurality of CDMA physical channels are not in use for the transmission of user data from the subscriber unit to the cellular network, and while the IEEE 802.11 transceiver transmits second user data to an IEEE 802.11 wireless local area network.
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Abstract
A technique for communication with a local area network (LAN) via a wireless connection determines whether a first short-range, high-speed, wireless communication path is available and connects to the LAN using a longer range, lower speed wireless communication path if the short-range, high-speed wireless communication path is not available. The low-range, high-speed wireless communication path is a wireless communication path is a wireless LAN connection such as an IEE 802.11-compliant wireless LAN and the long-range, low-sped wireless communication mode is a cellular CDMA-type connection. Determining whether the first IEEE 802.11 mode is available can be done by detecting a beacon signal, or transmitting a probe request message and detecting a probe response message in response to the probe request, indicating the presence or availability of the short-range, high-speed wireless communication path. Alternatively, the availability of short-range, high-speed wireless communication path can be detected by simply detecting activity on it.
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Citations
34 Claims
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1. A subscriber unit comprising:
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a processor configured to select, based on a presence of first user data, a subset of a plurality of code division multiple access (CDMA) physical channels available for transmission of user data from the subscriber unit to a cellular network; a cellular transceiver configured to use the selected subset of the plurality of CDMA physical channels to transmit the first user data from the subscriber unit to the cellular network; and an IEEE 802.11 transceiver, wherein the processor is further configured to maintain a communication session with the cellular network when the plurality of CDMA physical channels are not in use for the transmission of user data from the subscriber unit to the cellular network, and while the IEEE 802.11 transceiver transmits second user data to an IEEE 802.11 wireless local area network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for use in a subscriber unit, the method comprising the subscriber unit:
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selecting, based on a presence of first user data, a subset of a plurality of code division multiple access (CDMA) physical channels available for transmission of user data from the subscriber unit to a cellular network; using the selected subset of the plurality of CDMA physical channels to transmit the first user data to the cellular network; and maintaining a communication session with the cellular network when the plurality of CDMA physical channels are not in use for the transmission of user data from the subscriber unit to the cellular network, and while transmitting second user data to an IEEE 802.11 wireless local area network. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification