ڵˣǹڽͷ֮һջҪ֣ͬΪͷ֮һ
ͬǵľջٶѸͣڽѾˣ꿴Ÿʵֺõ˴ӣҲЩǡ
һ仰ݣ֮࣬˯ڵ˾ָоϾջྩľЩͬУҾͬһУҲʱԱȣһԷԽӰҪĶࡣ
ڣҲѾʼתˣڿGSMCDMAͨ豸ͨ豸վ·ȲƷ
ͬһʱҲЩã֪ѺעŷGSMǰӻCDMA
˼ģΪº͵˵һƷæзģʱĺҵ˹ڳ̿ؽĴţںڣλɳ
ҲûúʧʱڣзJ2000ȥ1.7ԪĻӪڣΪڶƼ˾֮һ
ڣڲҲΪзGSMCDMA۲ݣʱ߿ͻȻձ绰籨˾ΪPHSڣⲻòǣѲPHSǸ2Gͨŵδ
ֹʱЩңʱͨҵһڹ˾ջƣͨŵȹ˾DZߣʱЩɶУͷԣ֪߿Ҫʲô
ҲͬںʵҲɫأʵ˵ӰԼλ磬ԳԺͷҲδһܣ
ͻȻ³PHSúҲɴ⣬ѲɣPHSͨҵδǶ˲ɣ
Щһֱǡྩܣλܣûдܱأ˵PHSʲôDz֪ҲһЦһ˵
˳ʱ䣬Ҫȶ߿Ķ࣬ڣѾȫ߿ƳԽˣ綼Ԥ⣬۵绰ij绰꣬Ϊ߿ƹ17Ԫҵ棡
ϣ߿·ƼڹڹⶼӦҵǶ߿ƵӪգﵽһ൱ըѵij̶ȣӪԤƿܳ23Ԫ
Ҷ߿ƵӪգ߳ɣ࣬ǺгģǸ߶˵绰ǺӦڹԪԪˡӢȵȡ
ǧºļҹ˾Ǯ˭ҵˣᣬ߿ĻԪˣ˵Ļڹڸǹˣ
߿ѺעPHSǹƹһ﹫˾øŵȥ
ۣǷ˽PHSͨҵʱڵ绰ͻȻ
ӵ绰ɫȻһ£ȷϢģ
æ˵ӣ˺̨һڽ̨߲ܵɷõӰ
˿˵ͷǶ߿ƼܾΡ
߿ȷʵзPHS߿ҪȥPHSҵͨżȱ㡭
Ȼ߿ƵʵڣСֻͨʱڵ̨ϣIJPHS˵ĽһǴ
֮ԣҪΪ߿ȷʵӵзPHSרDzñĵĹ˾ʹЩרΪûȥõ飡
˵ʱƤЩˣ˼ȷ߿ƾǸձ绰籨˾µģ߿ûPHSҵҲձ绰籨˾ʹö߿ƳеĸPHSйصרǣձ绰籨˾Ŷ߿ƵЩ
֪дάʱʲô̬˵ⷬʱԼƤijЩ졣
߿Ƿ2Gֻҵ
˵ʺֱӸ˴𰸣Ȼ߿ƻῪGSMCDMAоƬ2GֻĿǰܸCDMAļ
εĻȻɴ۾˶һۣһ£ֱ˵GSMCDMAļ˶ܷҪзCDMAļΪ
һѣĸڶ߿ƺԣ߿ڸͨCDMAҲȷε۹⣬Ҫһѡ
½ý壬۳ǵýDZߣڱ߿Ƹձ绰籨˾ΪPHSרֵʱڵ̨ϵIJɷã˶һ
߿ƾȻһǹPHSҵҪзGSMCDMA2Gֻƺָ֧ͨDZߣGSMİšŵDZߡ
ԭֻһΡƽƽ桱IJɷãΪ߿ƵԵʣټϸձ绰籨˾ִýעڶ߿ͻȻ˵PHSˣⲻףûûͨҵPHS˲䱻˿˥ձ֮ĺӪǣûȤ
߿Ⲩձ绰籨˾뽫PHSƹ㵽뷨ϢдάһѪû³
һߣ˹еĸͨɼۣͻȻϢ½Ƽͷ߿ƣͨCDMA½
Ҫ֪ȫ磬ҵĵţʹCDMAһǰӣһǰӡ
ڰӣžͷҲôCDMA෴ڰDZߣӵSKţΪȫCDMAӪ̣ǡLGȹ˾зCDMAֻ
ӽƣǰ˸ͨûӣͨˣɰӵûô࣬ǿԾȸͨһ뿿Ǯʵ̫ˡ
ʱڴ½ƼҵӵвСӰĶ߿ƣͻȻCDMAѲ˸棬߿DzҪͨ
ڹڵ뻹ӣڵĵûȺ壬ǰӵİٱֹѲðDZߵͶʻ棬һͨCDMAڵгܴԪ棿
ͨDZߣԸǺⰵʾᡰȨCDMA߿ƣ
߿ܲ칫ڣꡢ塢͡ΡŰ˶ڳ
˵ϢһͨDZߣ߿׳֦Ѷ߿ͨӪ
⻰ȴֻЦһԡӦͨ߸ͨDZߣ߿ԸͨͬзCDMAļҪϣڸͨϣ߿ƱԼCDMAרУ
ԸͨԶʳķë·ñëָרȨ߿ƣˣָôӶ߿ء
⣬дάDZߣҪɹ̸
Ц˵߿һձ绰籨˾˾·
߿ԼPHSձ绰籨˾棬дάױﲻסˣҴҵܹҪʦͣüдά֪
Ǿͻӭдά糤˵ڶ߿ҲǼˣżСֻͨȴҪסС
ھͿձ绰籨˾DZߣ˭ȳס˭סҪصĴۣҪһ
ȶСĿ꣬1סskjvvx;ֻĶַskjvvx
ͬǵľջٶѸͣڽѾˣ꿴Ÿʵֺõ˴ӣҲЩǡ
һ仰ݣ֮࣬˯ڵ˾ָоϾջྩľЩͬУҾͬһУҲʱԱȣһԷԽӰҪĶࡣ
ڣҲѾʼתˣڿGSMCDMAͨ豸ͨ豸վ·ȲƷ
ͬһʱҲЩã֪ѺעŷGSMǰӻCDMA
˼ģΪº͵˵һƷæзģʱĺҵ˹ڳ̿ؽĴţںڣλɳ
ҲûúʧʱڣзJ2000ȥ1.7ԪĻӪڣΪڶƼ˾֮һ
ڣڲҲΪзGSMCDMA۲ݣʱ߿ͻȻձ绰籨˾ΪPHSڣⲻòǣѲPHSǸ2Gͨŵδ
ֹʱЩңʱͨҵһڹ˾ջƣͨŵȹ˾DZߣʱЩɶУͷԣ֪߿Ҫʲô
ҲͬںʵҲɫأʵ˵ӰԼλ磬ԳԺͷҲδһܣ
ͻȻ³PHSúҲɴ⣬ѲɣPHSͨҵδǶ˲ɣ
Щһֱǡྩܣλܣûдܱأ˵PHSʲôDz֪ҲһЦһ˵
˳ʱ䣬Ҫȶ߿Ķ࣬ڣѾȫ߿ƳԽˣ綼Ԥ⣬۵绰ij绰꣬Ϊ߿ƹ17Ԫҵ棡
ϣ߿·ƼڹڹⶼӦҵǶ߿ƵӪգﵽһ൱ըѵij̶ȣӪԤƿܳ23Ԫ
Ҷ߿ƵӪգ߳ɣ࣬ǺгģǸ߶˵绰ǺӦڹԪԪˡӢȵȡ
ǧºļҹ˾Ǯ˭ҵˣᣬ߿ĻԪˣ˵Ļڹڸǹˣ
߿ѺעPHSǹƹһ﹫˾øŵȥ
ۣǷ˽PHSͨҵʱڵ绰ͻȻ
ӵ绰ɫȻһ£ȷϢģ
æ˵ӣ˺̨һڽ̨߲ܵɷõӰ
˿˵ͷǶ߿ƼܾΡ
߿ȷʵзPHS߿ҪȥPHSҵͨżȱ㡭
Ȼ߿ƵʵڣСֻͨʱڵ̨ϣIJPHS˵ĽһǴ
֮ԣҪΪ߿ȷʵӵзPHSרDzñĵĹ˾ʹЩרΪûȥõ飡
˵ʱƤЩˣ˼ȷ߿ƾǸձ绰籨˾µģ߿ûPHSҵҲձ绰籨˾ʹö߿ƳеĸPHSйصרǣձ绰籨˾Ŷ߿ƵЩ
֪дάʱʲô̬˵ⷬʱԼƤijЩ졣
߿Ƿ2Gֻҵ
˵ʺֱӸ˴𰸣Ȼ߿ƻῪGSMCDMAоƬ2GֻĿǰܸCDMAļ
εĻȻɴ۾˶һۣһ£ֱ˵GSMCDMAļ˶ܷҪзCDMAļΪ
һѣĸڶ߿ƺԣ߿ڸͨCDMAҲȷε۹⣬Ҫһѡ
½ý壬۳ǵýDZߣڱ߿Ƹձ绰籨˾ΪPHSרֵʱڵ̨ϵIJɷã˶һ
߿ƾȻһǹPHSҵҪзGSMCDMA2Gֻƺָ֧ͨDZߣGSMİšŵDZߡ
ԭֻһΡƽƽ桱IJɷãΪ߿ƵԵʣټϸձ绰籨˾ִýעڶ߿ͻȻ˵PHSˣⲻףûûͨҵPHS˲䱻˿˥ձ֮ĺӪǣûȤ
߿Ⲩձ绰籨˾뽫PHSƹ㵽뷨ϢдάһѪû³
һߣ˹еĸͨɼۣͻȻϢ½Ƽͷ߿ƣͨCDMA½
Ҫ֪ȫ磬ҵĵţʹCDMAһǰӣһǰӡ
ڰӣžͷҲôCDMA෴ڰDZߣӵSKţΪȫCDMAӪ̣ǡLGȹ˾зCDMAֻ
ӽƣǰ˸ͨûӣͨˣɰӵûô࣬ǿԾȸͨһ뿿Ǯʵ̫ˡ
ʱڴ½ƼҵӵвСӰĶ߿ƣͻȻCDMAѲ˸棬߿DzҪͨ
ڹڵ뻹ӣڵĵûȺ壬ǰӵİٱֹѲðDZߵͶʻ棬һͨCDMAڵгܴԪ棿
ͨDZߣԸǺⰵʾᡰȨCDMA߿ƣ
߿ܲ칫ڣꡢ塢͡ΡŰ˶ڳ
˵ϢһͨDZߣ߿׳֦Ѷ߿ͨӪ
⻰ȴֻЦһԡӦͨ߸ͨDZߣ߿ԸͨͬзCDMAļҪϣڸͨϣ߿ƱԼCDMAרУ
ԸͨԶʳķë·ñëָרȨ߿ƣˣָôӶ߿ء
⣬дάDZߣҪɹ̸
Ц˵߿һձ绰籨˾˾·
߿ԼPHSձ绰籨˾棬дάױﲻסˣҴҵܹҪʦͣüдά֪
Ǿͻӭдά糤˵ڶ߿ҲǼˣżСֻͨȴҪסС
ھͿձ绰籨˾DZߣ˭ȳס˭סҪصĴۣҪһ
ȶСĿ꣬1סskjvvx;ֻĶַskjvvx