发明名称 Method and circuit arrangement for the access of cordless terminals to a telecommunications system
摘要 The essential functions and characteristics of a telecommunications system with cordless terminals are established by the known DECT standard. On the one hand, the invention has the task of reducing the cost of ADPCM/PCM transcoders in DECT or DECT-like systems, and on the other to improve the handover characteristics, by making an interruption-free channel changeover, even during a change of cell bundles. To that effect, all DECT interface circuits (9, 10) are jointly controlled by a central processing unit (MOB CPU) assigned only to these DECT interface circuits (9, 10). The otherwise usual ADPCM/PCM transcoders have been omitted in the DECT interface circuits (9, 10), and are now assigned to the central processing unit (MOB CPU), while their number can be reduced in comparison to known solutions. The central processing unit (MOB CPU) also takes over the switching functions for the channels offered by the DECT interface circuits (9, 10). Since the channels from different DECT interface circuits (9, 10) are in frame-synchronous form, the central processing unit (MOB CPU) can carry out an interruption-free channel change during the cell bundle change of a cordless terminal.
申请公布号 US5946628(A) 申请公布日期 1999.08.31
申请号 US19970804519 申请日期 1997.02.21
申请人 ALCATEL N.V. 发明人 VELOSO, ARTUR;ENDLER, JOACHIM;GEYWITZ, KLAUS;SIEGMUND, GERD;ADOLPHI, HANS-JOACHIM
分类号 H04W36/12;H04W36/18;H04W84/16;H04W88/08;H04W88/12;H04W88/14;H04W88/18;H04W92/04;(IPC1-7):H04Q7/20 主分类号 H04W36/12
代理机构 代理人
主权项
地址
您可能感兴趣的专利