Collaborative interference mitigation between physically-proximate narrowband and broadband communication devices
First Claim
1. A narrowband portable communication device operating in a narrowband network, the narrowband portable communication device comprising:
- a processor that is configured to;
scan for a first narrowband control channel in a 700 MHz narrowband frequency range;
monitor the first narrowband control channel when found in the 700 MHz narrowband frequency range;
send an instruction, using a direct communication pathway without intermediate routing, to a separate, co-located and spectrally-proximate broadband handheld communication device operating in a broadband network, the instruction being to one or more of disable a C-Block broadband transmission or roam from the C-block broadband transmissions;
receive an assignment to a call in a 800 MHz narrowband frequency range; and
send a disable instruction, using the direct communication pathway without intermediate routing, in response to receiving the assignment to the call, instructing the broadband handheld communication device to disable A&
B cellular broadband transmissions thereby avoiding potential RF interference from the broadband handheld device to the narrowband portable communication device while the narrowband portable communication device handles the call.
1 Assignment
0 Petitions
Accused Products
Abstract
A communication pathway (145) can be established between physically collocated narrowband (135) and broadband (105) devices. The narrowband device (135) can identify a communication channel. A transmission frequency used by the broadband device (105) can be spectrally-proximate to a reception frequency used by the narrowband device (135) in a frequency range associated with the communication channel, resulting in interference of the narrowband device'"'"'s (135) reception when the broadband device (105) is transmitting and the narrowband device (135) is receiving concurrently. The narrowband device (135) can instruct the broadband device (105) to switch to a transmission spectrum block that is spectrally separated from the reception spectrum block of the communication channel to minimize interference between the devices when the narrowband device (135) handles a call assignment.
61 Citations
18 Claims
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1. A narrowband portable communication device operating in a narrowband network, the narrowband portable communication device comprising:
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a processor that is configured to; scan for a first narrowband control channel in a 700 MHz narrowband frequency range; monitor the first narrowband control channel when found in the 700 MHz narrowband frequency range; send an instruction, using a direct communication pathway without intermediate routing, to a separate, co-located and spectrally-proximate broadband handheld communication device operating in a broadband network, the instruction being to one or more of disable a C-Block broadband transmission or roam from the C-block broadband transmissions; receive an assignment to a call in a 800 MHz narrowband frequency range; and send a disable instruction, using the direct communication pathway without intermediate routing, in response to receiving the assignment to the call, instructing the broadband handheld communication device to disable A&
B cellular broadband transmissions thereby avoiding potential RF interference from the broadband handheld device to the narrowband portable communication device while the narrowband portable communication device handles the call. - View Dependent Claims (2, 11, 13, 15, 17)
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3. A method for mitigating interference by a narrowband portable communication device operating in a narrowband network, the method comprising:
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begin scanning at the narrowband communication device for a narrowband control channel, by the narrowband portable communication device via unidirectional communication, without intermediate routing, to a separate, co-located and spectrally-proximate broadband communication device operating in a broadband network, within a 700 MHz narrowband frequency range and an 800 MHz narrowband frequency range; the narrowband portable communication device entering one of three states in response to scanning, the three states comprising; a first state in which;
in response to the scanning, a narrowband control channel within the 700 MHz narrowband frequency range is found;a second state in which;
in response to the scanning, a narrowband control channel within the 800 MHz narrowband frequency range is found; anda third state in which;
in response to the scanning, a narrowband control channel is unable to be found by the narrowband portable communication device within the 700 MHz narrowband frequency range within a predefined time period, and in response thereto, the narrowband portable communication device instructs the broadband communication device to disable its C-Block broadband transmissions, and the narrowband portable communication device then scans the 700 MHz narrowband frequency range for a control channel with minimized radio frequency (RF) interference from the broadband communication device; andwherein each of the three states is responded to via the unidirectional communication without intermediate routing. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18)
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Specification