Methods and systems for transmission of multiple modulated signals over wireless networks
DC
First Claim
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1. A method of operating a base station to allocate transmission resources to a plurality of wireless cellular mobile units in a bandwidth on demand communication system, the method comprising:
- receiving an explicit message from a wireless cellular mobile unit informing the base station that the wireless cellular mobile unit has data awaiting transmission;
subsequent to receiving the explicit message, providing to the wireless cellular mobile unit a transmission opportunity for the wireless cellular mobile unit to inform the base station of an indication of an amount of data awaiting transmission to the base station;
receiving the indication of an amount of data awaiting transmission to the base station subsequent to providing the transmission opportunity, the data awaiting transmission to the base station associated with a logical data queue of one or more logical data queues at the wireless cellular mobile unit;
providing to the wireless cellular mobile unit an uplink transmission grant for use by the wireless cellular mobile unit, the wireless cellular mobile unit determining how to allocate the uplink transmission grant to one or more applications with data awaiting transmission to the base station; and
receiving uplink data from the wireless cellular mobile unit according to the uplink transmission grant, the uplink data pertaining to the one or more applications.
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Abstract
A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The method and apparatus includes a combination of techniques that allow a plurality of CPEs to communicate their bandwidth request messages to respective base stations. One technique includes a “polling” method whereby a base station polls CPEs individually or in groups and allocates bandwidth specifically for the purpose of allowing the CPEs to respond with bandwidth requests. The polling of the CPEs by the base station may be in response to a CPE setting a “poll-me bit” or, alternatively, it may be periodic. Another technique comprises “piggybacking” bandwidth requests on bandwidth already allocated to a CPE. Currently active CPEs request bandwidth using unused portions of uplink bandwidth that is already allocated to the CPE. The CPE is responsible for distributing the allocated uplink bandwidth in a manner that accommodates the services provided by the CPE.
225 Citations
19 Claims
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1. A method of operating a base station to allocate transmission resources to a plurality of wireless cellular mobile units in a bandwidth on demand communication system, the method comprising:
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receiving an explicit message from a wireless cellular mobile unit informing the base station that the wireless cellular mobile unit has data awaiting transmission; subsequent to receiving the explicit message, providing to the wireless cellular mobile unit a transmission opportunity for the wireless cellular mobile unit to inform the base station of an indication of an amount of data awaiting transmission to the base station; receiving the indication of an amount of data awaiting transmission to the base station subsequent to providing the transmission opportunity, the data awaiting transmission to the base station associated with a logical data queue of one or more logical data queues at the wireless cellular mobile unit; providing to the wireless cellular mobile unit an uplink transmission grant for use by the wireless cellular mobile unit, the wireless cellular mobile unit determining how to allocate the uplink transmission grant to one or more applications with data awaiting transmission to the base station; and receiving uplink data from the wireless cellular mobile unit according to the uplink transmission grant, the uplink data pertaining to the one or more applications. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A base station which communicates with a plurality of wireless cellular mobile′
- units in a bandwidth on demand communication system, comprising;
a transmitter operable to transmit downlink (DL) traffic to one or more wireless cellular mobile units from the plurality wireless cellular mobile units; a receiver operable to; receive a preamble from a wireless cellular mobile unit from the plurality of wireless cellular mobile units and enable registration and synchronization of the wireless cellular mobile unit with the base station, and receive uplink traffic from the wireless cellular mobile unit; and a processor having a media access control (MAC) module operable to; identify an explicit message received from a wireless cellular mobile unit, indicating that the wireless cellular mobile unit requires uplink transmission resources, and in response to the explicit message, provide an allocation of uplink transmission resources to the wireless cellular mobile unit the allocation for the wireless cellular mobile unit to transmit an indication of an amount of data awaiting transmission in an uplink UL logical data queue provided at the wireless cellular mobile unit. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
- units in a bandwidth on demand communication system, comprising;
Specification
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Litigation Data
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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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InventorsStanwood, Kenneth L., Mollenauer, James F., Klein, Israel Jay, Gilbert, Sheldon L.
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Primary Examiner(s)Ngo, Ricky
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Assistant Examiner(s)SAMUEL, DEWANDA A
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Application NumberUS14/523,755Publication NumberTime in Patent Office662 DaysField of Search370/252, 370328-338, 370346-348US Class Current1/1CPC Class CodesH04L 2012/5607 RadioH04L 2012/561 Star, e.g. cross-connect, c...H04L 5/0064 Rate requirement of the dat...H04L 5/0092 Indication of how the chann...H04Q 11/0478 Provisions for broadband co...H04W 28/0268 using specific QoS paramete...H04W 28/06 Optimizing the usage of the...H04W 28/14 using intermediate storageH04W 4/06 Selective distribution of b...H04W 56/0005 synchronizing of arrival of...H04W 60/00 Affiliation to network, e.g...H04W 72/044 based on the type of the al...H04W 72/0453 Resources in frequency doma...H04W 72/20 Control channels or signall...H04W 72/21 in the uplink direction of ...H04W 72/23 in the downlink direction o...H04W 72/30 Resource management for bro...H04W 72/51 based on terminal or device...H04W 72/56 based on priority criteriaH04W 74/06 using pollingView All
