METHOD AND SYSTEM FOR ADAPTIVELY OBTAINING BANDWIDTH ALLOCATION REQUESTS
First Claim
1. A method of obtaining uplink (UL) bandwidth for a subscriber station that shares an uplink to a base station with other subscriber stations, the method comprising:
- transmitting from the subscriber station a bandwidth request which identifies an amount of data awaiting transmission;
receiving an uplink allocation indication with current UL bandwidth allocations for a plurality of subscriber stations, including the subscriber station;
identifying in the UL allocation indication an UL bandwidth grant allocated to the subscriber station for data transmission in a current frame; and
allocating the UL bandwidth grant among one or more connections established at the subscriber station, based on a quality of service parameter.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for adaptively obtaining bandwidth requests in a broadband wireless communication system. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. A user may “piggyback” a new bandwidth request upon, or set a “poll-me bit” within, presently allocated bandwidth. A base station may poll users, individually or in groups, by allocating unrequested bandwidth for new requests. Polling may respond to a “poll-me bit,” and/or it may be adaptively periodic at a rate based on communication status parameters, such as recent communication activity and connection QoS levels Group polling permits a possibility of collisions. Polling policies may be established for dynamically varying user groups, or may be determined for each user. Dynamic selection of appropriate polling techniques makes use of efficiency benefits associated with each technique.
35 Citations
20 Claims
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1. A method of obtaining uplink (UL) bandwidth for a subscriber station that shares an uplink to a base station with other subscriber stations, the method comprising:
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transmitting from the subscriber station a bandwidth request which identifies an amount of data awaiting transmission; receiving an uplink allocation indication with current UL bandwidth allocations for a plurality of subscriber stations, including the subscriber station; identifying in the UL allocation indication an UL bandwidth grant allocated to the subscriber station for data transmission in a current frame; and allocating the UL bandwidth grant among one or more connections established at the subscriber station, based on a quality of service parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of allocating uplink (UL) bandwidth by subscriber station that shares an uplink to a base station with other subscriber stations, the method comprising:
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transmitting from the subscriber station a request for polling having a particular combination of bits in a packet transmitted by the subscriber station; receiving at the subscriber station a bandwidth request opportunity having an amount of UL bandwidth; transmitting a bandwidth request within the amount of UL bandwidth, the bandwidth request specifying a requested amount of UL bandwidth pertaining to one or more connections established at the subscriber station; and receiving an UL bandwidth grant in response to the bandwidth request, wherein the UL bandwidth grant being identified in an allocation indication control message received from the base station. - View Dependent Claims (12, 13, 14, 15)
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16. A method of obtaining uplink (UL) bandwidth for a subscriber station that shares an uplink to a base station with other subscriber stations, comprising:
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a) transmitting from the subscriber station a bandwidth request; b) receiving a control message identifying an UL bandwidth grant allocated to the subscriber station, for data transmission in a current frame; and c) allocating the UL bandwidth grant among one or more queues, wherein each queue is created for accumulating data received over a respective connection established at the subscriber station. - View Dependent Claims (17, 18, 19, 20)
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Specification
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- Resources
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Current AssigneeQuarterhill Inc. (f/k/a Wi-LAN Inc.)
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Original AssigneeQuarterhill Inc. (f/k/a Wi-LAN Inc.)
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InventorsSpinar, Brian, Stanwood, Kenneth L., Klein, Israel Jay, Mollenauer, James F., Gilbert, Sheldon I.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current370/329
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CPC Class CodesH04W 28/06 Optimizing the usage of the...H04W 28/18 Negotiating wireless commun...H04W 28/20 Negotiating bandwidthH04W 72/0453 Resources in frequency doma...H04W 72/21 in the uplink direction of ...H04W 72/23 in the downlink direction o...H04W 74/06 using polling
