MANAGING TRAFFIC IN COMMUNICATIONS SYSTEM HAVING DISSIMILAR CDMA CHANNELS
First Claim
1. A communications system that communicates via at least a random access channel and a reservation-oriented channel, comprising:
- a node that compares at least one criterion to at least one characteristic of traffic in which data is communicated from a given terminal; and
wherein upon the at least one traffic characteristic satisfying the at least one criterion, the node sends a bandwidth reservation request, processes and grants the bandwidth reservation request, communicates the granting of the bandwidth reservation request to the given terminal, and causes the given terminal to transmit data on the reservation-oriented channel, the reservation-oriented channel transmits data based on orthogonal code division multiple access (OCDMA); and
wherein upon the at least one traffic characteristic not satisfying the at least one criterion, the node causes the given terminal to transmit data on the random access channel, the random access channel transmits data based on asynchronous code division multiple access (ACDMA).
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Accused Products
Abstract
In a code division multiple access (CDMA) communications system including one or more terminals (such as customer premise equipments, CPEs) that communicate with a node (such as an Internet gateway) via at least a random access channel and a reservation-oriented channel, various schemes of managing communications traffic among the channels are provided. Decisions as to the channel on which a given terminal may transmit may be based on: traffic statistics (such as packet size or average data rate over a time period), traffic content (such as packet type), the terminal'"'"'s output buffer loading (queue state, or “Q-state”), a history of the terminal'"'"'s output buffer loading (one or more Q-states), and so forth. In one application, decisions in managing traffic in a live user'"'"'s web browsing sessions may involve intelligent ascertainment of whether a given terminal is busy based on traffic analysis or output buffer loading.
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Citations
20 Claims
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1. A communications system that communicates via at least a random access channel and a reservation-oriented channel, comprising:
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a node that compares at least one criterion to at least one characteristic of traffic in which data is communicated from a given terminal; and wherein upon the at least one traffic characteristic satisfying the at least one criterion, the node sends a bandwidth reservation request, processes and grants the bandwidth reservation request, communicates the granting of the bandwidth reservation request to the given terminal, and causes the given terminal to transmit data on the reservation-oriented channel, the reservation-oriented channel transmits data based on orthogonal code division multiple access (OCDMA); and wherein upon the at least one traffic characteristic not satisfying the at least one criterion, the node causes the given terminal to transmit data on the random access channel, the random access channel transmits data based on asynchronous code division multiple access (ACDMA). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communications system that communicates via at least a random access channel and a reservation-oriented channel, the system comprising:
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a node that compares at least one criterion to at least one characteristic of traffic in which data is communicated from a given terminal in order to arrive at an examination result; wherein the node determines based on the examination result, whether the given terminal is in a busy condition; and wherein upon determining the given terminal to be in a busy condition, the node assigns to the given terminal, a code designating a reservation-oriented sub-channel, and causes the given terminal to transmit data on the reservation-oriented sub-channel, the reservation-oriented channel transmits data based on orthogonal code division multiple access (OCDMA); and wherein upon determining the given terminal to not be in a busy condition, the node causes the given terminal to transmit data on the random access channel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A communications system that communicates via at least a random access channel and a reservation-oriented channel, comprising:
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means for managing traffic that compares at least one criterion to at least one characteristic of traffic in which data is communicated from a given terminal; and wherein upon the at least one traffic characteristic satisfying the at least one criterion, the means for managing traffic sends a bandwidth reservation request, processes and grants the bandwidth reservation request, communicates the granting of the bandwidth reservation request to the given terminal, and causes the given terminal to transmit data on the reservation-oriented channel, the reservation-oriented channel transmits data based on orthogonal code division multiple access (OCDMA); and wherein upon the at least one traffic characteristic not satisfying the at least one criterion, the means for managing traffic causes the given terminal to transmit data on the random access channel, the random access channel transmits data based on asynchronous code division multiple access (ACDMA).
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Specification