Control Mechanism for Communication Via Different Frequency Bands
First Claim
1. An apparatus comprisinga preamble transmission command processing portion configured to generate a preamble transmission command comprising instruction for causing transmission of a preamble signal on a first communication path, and to cause transmission of the preamble transmission command on a second communication path being different to the first communication path, anda preamble signal detecting portion configured to detect whether the preamble signal instructed by the preamble transmission command is received via the first communication path.
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Accused Products
Abstract
There is provided a mechanism for controlling communications conducted via different frequency bands or communication spectrums. When a communication via a first communication path, for example an unlicensed or white space communication spectrum, is to be established, e.g. for offloading traffic from a second communication path, for example a licensed cellular communication spectrum, a preamble transmission command is generated and transmitted from a communication network control element, such as an eNB, via the second communication path to a communication element, such as a UE. By means of the preamble transmission command, the transmission of a preamble signal by the receiving communication element on the first communication path with predetermined communication resources is triggered. Based on a receipt or non-receipt of the preamble signal via the first communication path, the communication network control element is able to determine that the communication element can establish a connection on the first communication path, for example the unlicensed or white space communication spectrum.
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Citations
28 Claims
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1. An apparatus comprising
a preamble transmission command processing portion configured to generate a preamble transmission command comprising instruction for causing transmission of a preamble signal on a first communication path, and to cause transmission of the preamble transmission command on a second communication path being different to the first communication path, and a preamble signal detecting portion configured to detect whether the preamble signal instructed by the preamble transmission command is received via the first communication path.
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11. A method comprising
generating a preamble transmission command comprising instruction for causing transmission of a preamble signal on a first communication path, transmitting the preamble transmission command on a second communication path being different to the first communication path, and detecting whether the preamble signal instructed by the preamble transmission command is received via the first communication path.
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13. (canceled)
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15-20. -20. (canceled)
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21. An apparatus comprising
a preamble transmission command receiving portion configured to receive and process a preamble transmission command comprising instruction for causing transmission of a preamble signal on a first communication path, wherein the preamble transmission command is received via a second communication path being different to the first communication path, and a preamble signal transmitting portion configured to cause transmitting of a preamble signal via the first communication path according to the instruction of the preamble transmission command.
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28-37. -37. (canceled)
Specification