Methods and systems for transmission of multiple modulated signals over wireless networks
DC CAFC
First Claim
1. A method for requesting bandwidth on demand in a wireless communication system, wherein the wireless communication system includes a wireless subscriber radio unit, the method comprising:
- registering the wireless communication radio unit with a base station in the wireless communication system and establishing communication between the wireless subscriber radio unit and the base station;
transmitting from the wireless subscriber radio unit which is registered with the base station, an explicit message to the base station requesting to be provided an allocation of uplink (UL) bandwidth in which to transmit a bandwidth request;
receiving at the wireless subscriber radio unit the allocation of UL bandwidth in which to transmit a bandwidth request;
transmitting the bandwidth request within the allocation of UL bandwidth, the bandwidth request specifying a requested UL bandwidth allocation; and
receiving an UL bandwidth grant for the wireless subscriber radio unit in response to the bandwidth request;
wherein the wireless subscriber radio unit maintains a plurality of queues, each queue for data pertaining to one or more UL connections with similar QoS and wherein the wireless subscriber radio unit allocates the UL bandwidth grant to the one or more UL connections based on QoS priority.
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Accused Products
Abstract
A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The inventive 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. In accordance with this technique, currently active CPEs request bandwidth using previously 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. By using a combination of bandwidth allocation techniques, the present invention advantageously makes use of the efficiency benefits associated with each technique.
161 Citations
10 Claims
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1. A method for requesting bandwidth on demand in a wireless communication system, wherein the wireless communication system includes a wireless subscriber radio unit, the method comprising:
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registering the wireless communication radio unit with a base station in the wireless communication system and establishing communication between the wireless subscriber radio unit and the base station; transmitting from the wireless subscriber radio unit which is registered with the base station, an explicit message to the base station requesting to be provided an allocation of uplink (UL) bandwidth in which to transmit a bandwidth request; receiving at the wireless subscriber radio unit the allocation of UL bandwidth in which to transmit a bandwidth request; transmitting the bandwidth request within the allocation of UL bandwidth, the bandwidth request specifying a requested UL bandwidth allocation; and receiving an UL bandwidth grant for the wireless subscriber radio unit in response to the bandwidth request; wherein the wireless subscriber radio unit maintains a plurality of queues, each queue for data pertaining to one or more UL connections with similar QoS and wherein the wireless subscriber radio unit allocates the UL bandwidth grant to the one or more UL connections based on QoS priority. - View Dependent Claims (2, 3, 4, 5)
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6. A method of allocating uplink (UL) bandwidth on demand in a wireless subscriber radio unit, comprising:
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registering the wireless subscriber radio unit with a base station in a wireless communication system and establishing communication between the wireless subscriber radio unit and the base station; determining a required amount of UL bandwidth for a UL queue at the wireless subscriber radio unit, wherein the UL queue comprises traffic with similar quality of service (QoS) received on a plurality of connections; transmitting from the wireless subscriber radio unit an explicit message to the base station requesting to be provided an allocation of UL bandwidth in which to transmit a bandwidth request; receiving at the wireless subscriber radio unit the allocation of UL bandwidth in which to transmit a bandwidth request; sending the bandwidth request indicative of the required amount of UL bandwidth for the UL queue to the base station; receiving from the base station an UL bandwidth grant for the wireless subscriber radio unit; and allocating, at the wireless subscriber radio unit, the UL bandwidth grant to one or more of a plurality of connections at the wireless subscriber radio unit; wherein the wireless subscriber radio unit allocates the UL bandwidth grant to the one or more of the plurality of connections based on QoS connection priority. - View Dependent Claims (7, 8, 9, 10)
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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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InventorsStanwood, Kenneth L., Mollenauer, James F., Klein, Israel Jay, Gilbert, Sheldon L.
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Primary Examiner(s)Agosta, Steve D
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Application NumberUS12/645,937Publication NumberTime in Patent Office1,063 DaysField of Search455450-453, 455/422.1, 455/434, 370/310.2, 370/322, 37039521-39543, 370412-421US Class Current455/450CPC 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
