Methods of load balancing and controlling congestion in a combined frequency division and time division multiple access communication system using intelligent login procedures and mobile terminal move commands
First Claim
1. In a method of communicating between a central station and any mobile terminals of a plurality of mobile terminals, wherein communication occurs over a selected channel group of a plurality of channel groups, each such channel group having one TDM channel for forward channel transmissions directed from the central station toward any of the plurality of mobile terminals, and at least one return channel for TDMA return channel transmissions by any of the plurality of mobile terminals with a login request prior to login, and by logged in mobile terminals communicating with the central station, a method of balancing transmission loads among said channel groups comprising the steps of:
- transmitting channel group load balancing information over the TDM channel of a first channel group of the plurality of channel groups for reception by a first category of mobile terminals of the plurality of mobile terminals which receive said channel group load balancing information by being tuned to the TDM channel of the first channel group in preparation for and prior to logging into said first channel group, and by a second category of mobile terminals of the plurality of mobile terminals which receive said channel load balancing information while being logged into said first channel group at the time of transmission of said channel group load balancing information;
interpreting said channel group load balancing information by one category of the first and second categories of mobile terminals receiving such channel group load balancing information;
based on an outcome of interpreting said channel group load balancing information, selecting a second channel group of the plurality of channel groups as a preferred channel group for use to effect load balancing the channel groups; and
logging at least one of the mobile terminals having interpreted such channel group load balancing information into the second channel group.
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Accused Products
Abstract
In a time-division multiple-access TDMA communication system communication between a hub and a substantial number of mobile terminals is conducted over a plurality of channel groups. Load balancing toward a substantially uniform distribution of traffic loads among the channel groups is implemented by sharing control of the number of mobile terminals logged into each channel group between the hub and the mobile terminals. At login time, each mobile terminal selects the optimum channel group based on a channel group congestion factor broadcast on the forward TDM channel of each respective channel group. In addition, the hub has the ability to move a desired number of the mobile terminals from one to another channel group, based on information communicated in a network management service packet. The mobile terminals initiate moves based on statistical selection of mobile terminals using the communicated information.
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Citations
9 Claims
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1. In a method of communicating between a central station and any mobile terminals of a plurality of mobile terminals, wherein communication occurs over a selected channel group of a plurality of channel groups, each such channel group having one TDM channel for forward channel transmissions directed from the central station toward any of the plurality of mobile terminals, and at least one return channel for TDMA return channel transmissions by any of the plurality of mobile terminals with a login request prior to login, and by logged in mobile terminals communicating with the central station, a method of balancing transmission loads among said channel groups comprising the steps of:
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transmitting channel group load balancing information over the TDM channel of a first channel group of the plurality of channel groups for reception by a first category of mobile terminals of the plurality of mobile terminals which receive said channel group load balancing information by being tuned to the TDM channel of the first channel group in preparation for and prior to logging into said first channel group, and by a second category of mobile terminals of the plurality of mobile terminals which receive said channel load balancing information while being logged into said first channel group at the time of transmission of said channel group load balancing information; interpreting said channel group load balancing information by one category of the first and second categories of mobile terminals receiving such channel group load balancing information; based on an outcome of interpreting said channel group load balancing information, selecting a second channel group of the plurality of channel groups as a preferred channel group for use to effect load balancing the channel groups; and logging at least one of the mobile terminals having interpreted such channel group load balancing information into the second channel group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification