发明Methods and systems for transmission of multiple modulated signals over wireless networks

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申请号 US201113198590 申请日 2011年08月04日 最早公开日 2011年12月01日 所属国家/地区 美国
公开号及公开日 US2011292904A1   2011年12月01日
US8249014B2   2012年08月21日
授权日 2012年08月21日 说明书附图
申请人 STANWOOD KENNETH L (美国)  
MOLLENAUER JAMES F (美国)  
KLEIN ISRAEL JAY (美国)  
GILBERT SHELDON L (美国)  
WI LAN INC (加拿大)  
发明人 STANWOOD KENNETH L   MOLLENAUER JAMES F   KLEIN ISRAEL JAY   GILBERT SHELDON L  
优先权 US19990316518   19990521US20010859561   20010516US20050170392   20050629US20090645947   20091223US20090645937   20091223US201113198590   20110804
专利分类号 H04J3/00   H04W4/00   H04B7/212   H04L12/28   H04L12/56   H04Q11/04   H04W4/06   H04W28/04   H04W28/06   H04W28/14   H04W28/20   H04W72/04   H04W74/00   H04W74/06   H04W72/08  
代理机构 Procopio, Cory, Hargreaves & Savitch LLP   代理人

名称及摘要

Methods and systems for transmission of multiple modulated signals over wireless networks
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.
Methods and systems for transmission of multiple modulated signals over wireless networks
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.

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