Adaptive transmission channel allocation method and system for ISM and unlicensed frequency bands
First Claim
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1. A method comprising:
- establishing a frequency-hopping connection link with a network device;
measuring channel conditions in at least a portion of frequency channels for determining whether a non-frequency-hopping connection link is available based on measured conditions;
receiving via said frequency-hopping connection link an indication regarding said determining;
establishing the non-frequency-hopping connection link if said indication indicating that the non-frequency-hopping connection link is available; and
maintaining the frequency-hopping connection link if said indication indicating that the non-frequency-hopping connection link is unavailable.
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Abstract
A method and system for establishing a non-frequency-hopping connection link between a slave device with another slave device in a communications network having a plurality of frequency channels within a radio frequency band known as the unlicensed ISM band, wherein the connection links between slave devices are capable of being carried out in a frequency-hopping fashion. The non-frequency-hopping connection link can be established after the channel conditions, including the carrier power of the channel and the interference and noise levels adversely affecting the connection link, are measured.
28 Citations
24 Claims
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1. A method comprising:
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establishing a frequency-hopping connection link with a network device; measuring channel conditions in at least a portion of frequency channels for determining whether a non-frequency-hopping connection link is available based on measured conditions; receiving via said frequency-hopping connection link an indication regarding said determining; establishing the non-frequency-hopping connection link if said indication indicating that the non-frequency-hopping connection link is available; and maintaining the frequency-hopping connection link if said indication indicating that the non-frequency-hopping connection link is unavailable. - View Dependent Claims (2, 3, 4, 5, 11, 12)
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6. A method of communication between a plurality of network devices in a communication network, the communication devices including a first network device and a second network device, said method comprising:
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establishing a non-frequency-hopping connection link between the first network device and the second network device if said non-frequency-hopping connection link is available; and establishing or maintaining the frequency-hopping connection link between the first network device and the second network device, if said non-frequency-hopping connection link is unavailable, wherein the communication network has a further network device, said method further comprising; establishing a frequency-hopping connection link between the first network device and the further network device, and between the second network device and the further network device; measuring channel conditions in at least a portion of the plurality of frequency channels for determining whether said non-frequency-hopping connection link is available based on the measured conditions, wherein the measurement of the channel conditions is carried out by the first network device; and providing the further network device a measurement report including results of the channel condition measurements. - View Dependent Claims (7, 8, 9, 10, 13)
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14. A system for adaptive allocation of communications channels in a communications network, the communications network comprising a network device configured to establish a frequency-hopping connection link with another network device and to measure channel conditions in at least a portion of frequency channels, said system comprising:
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a first mechanism for determining whether a non-frequency-hopping connection link between the network device and said another network device is available based on measured conditions; and a second mechanism for receiving via said frequency-hopping connection link an indication regarding said determining, the second mechanism configured for establishing the non-frequency hopping connection link between the network device and said another network device if the indication indicating that the non-frequency-hopping connection link is available, and maintaining the frequency hopping connection link between the network device and said another network device if the indication indicating that the non-frequency-hopping connection link is unavailable. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A network device
configured to establish a frequency hopping connection link with another network device and to receive via the frequency-hopping connection link an indication indicating whether a non-frequency hopping connection link is available based on measurement results of measuring channel conditions in at least a portion of frequency channels, said network device comprising: a linking mechanism configured to establish the non-frequency hopping connection link if the indication indicating that the non-frequency hopping connection link is available, and to maintain the frequency hopping connection link if the indication indicating that the non-frequency hopping connection link is unavailable. - View Dependent Claims (22, 23, 24)
Specification