发明授权
US5475683A Method and apparatus for permitting radio unit roaming between trunked
RF transmission sites over a wide area that encompasses plural
multisite networks
失效
允许无线电单元漫游在包含多个多站点网络的广泛区域的中继RF传输站点之间的方法和装置
- 专利标题： Method and apparatus for permitting radio unit roaming between trunked RF transmission sites over a wide area that encompasses plural multisite networks
- 专利标题（中）： 允许无线电单元漫游在包含多个多站点网络的广泛区域的中继RF传输站点之间的方法和装置
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申请号： US178548申请日： 1994-01-07
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公开(公告)号： US5475683A公开(公告)日： 1995-12-12
- 发明人: Stephen D. Harrison , Charles P. Brame
- 申请人： Stephen D. Harrison , Charles P. Brame
- 申请人地址： NC Research Triangle Park
- 专利权人： Ericsson GE Mobile Communications Inc.
- 当前专利权人： Ericsson GE Mobile Communications Inc.
- 当前专利权人地址： NC Research Triangle Park
- 主分类号： H04W84/08
- IPC分类号： H04W84/08 ; H04J3/14
摘要：
Digitally trunked radio transceivers are permitted to roam over an extended coverage area including two or more digitally trunked radio frequency communication networks. Each network includes at least one digital repeater site having a corresponding site coverage area and serving digitally trunked radio transceivers disposed within or near the site coverage area. Each network also includes a local multisite switch for routing communications between the digital repeater sites within the networks. Site adjacency information is established for each site and communicated between the networks. Each digitally trunked transceiver maintains a site adjacency list for its currently selected site and modifies that list when the transceiver roams into a new site coverage area and selects a new repeater site.
公开/授权文献
- US4829563A Method for predictive dialing 公开/授权日：1989-05-09