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[通讯] 4G LTE ABC

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stargazer 发表于 2016-7-19 18:03:21 | 显示全部楼层 |阅读模式

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本帖最后由 stargazer 于 2016-7-19 21:02 编辑
.鐣欏璁哄潧-涓浜-涓夊垎鍦
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LTE频段划分及地区频段规划
http://wenku.baidu.com/view/14ea10ef195f312b3069a535.html?re=view

Frequencies used on the AT&T Network

Frequency range  Band number  Protocol Class Status Notes
鏉ユ簮涓浜.涓夊垎鍦拌鍧.
850 MHz CLR 5 GSM/GPRS/EDGE 2G Decommissioning by 2017[38] Plans to sunset 2G network by approximately January 1, 2017[39]
1900 MHz PCS 2 GSM/GPRS/EDGE 2G Decommissioning by 2017[38] Plans to sunset 2G network by approximately January 1, 2017[39]
850 MHz CLR 5 UMTS/HSPA+ up to 21Mbit/s 3G/"4G" Active[40]  
1900 MHz PCS 2 UMTS/HSPA+ up to 21Mbit/s 3G/"4G" Active[40]  
700 MHz Lower B/C 12/17 LTE 4G Active[41][42] Main LTE band providing complete coverage.
1700/2100 MHz AWS 4 LTE 4G Active[43][44] Additional LTE band for more bandwidth in many markets. . more info on 1point3acres.com
1900 MHz PCS 2 LTE 4G Active[45] Additional LTE band for more bandwidth in many markets.
850 MHz CLR 5 LTE 4G Active/Currently being deployed Additional LTE band for more bandwidth in select markets and used in markets without 700 MHz spectrum.
700 MHz Lower D/E 29 LTE 4G Currently being deployed LTE band providing supplemental downlink bandwidth.
2300 MHz WCS 30 LTE 4G Currently being deployed[46] Additional LTE band for more bandwidth in select markets.


T-Mobile

GSM Network

Frequency Band  Band number  Radio Interface  Generation  Status  Notes

1900 MHz PCS 2 GSM/GPRS/EDGE 2G In Service Most of this spectrum will/have undergone refarming for HSPA+ and/or LTE services.[74] (More Details See 4G LTE Upgrade)
1700/2100 MHz AWS 4 UMTS/HSPA+ Up to 42Mbit/s 3G/4G[86] In Service Has marketed 3G HSPA+ as "4G" since 2011. Covers 230 million+ POPs as of March, 2014. T-Mobile is moving HSPA+ from this band to PCS. Will be refarmed to LTE.[74][87]
1900 MHz PCS 2 UMTS/HSPA+ Up to 42Mbit/s 3G/4G In Service/Building out Refarming 3G HSPA+ traffic to this band.[88] Covers 308 million POPs as of June 2016[89]
1700/2100 MHz AWS 4 LTE 4G In Service/Building out Together, both bands cover 301 million POPs as of October 27, 2015.[90] . from: 1point3acres.com/bbs
PCS LTE is typically deployed in rural areas to reuse GSM antennas. PCS LTE is also being rolled out in urban areas to increase LTE capacity.[91][92][93]

1900 MHz PCS 2 LTE 4G In Service/Building out
700 MHz Block A 12 LTE 4G In Service/Building out[75] T-Mobile refers to band 12 LTE as 'Extended-range LTE' as it has better signal propagation characteristics than its PCS and AWS-based networks. The spectrum was acquired from Verizon Wireless and other companies. Initial rollout began in December 2014. As of May 2016, T-Mobile owns or is in the process of acquiring 700Mhz licenses covering a total of 269 million POPs, or 83% of the US population.[77] .1point3acres缃
5 GHz 255 LTE 4G Planned Unlicensed LTE that was planned to be launched in 2015[90]

. Waral 鍗氬鏈夋洿澶氭枃绔,
CDMA network (MetroPCS)
-google 1point3acres
Frequency Band Band Number Radio Interface Generation Status Notes. more info on 1point3acres.com

1900 MHz PCS Band Class 1 1xRTT/EV-DO 3G Decommissioned on June 21, 2015[98]  
1700/2100 MHz AWS Band Class 15 1xRTT/EV-DO 3G Decommissioned on June 21, 2015[98]  
1900 MHz PCS 2 LTE 4G Integrating with the T-Mobile network[8][98] Phones supporting LTE will start to use the LTE network in the table above.
1700/2100 MHz AWS 4 LTE 4G Integrating with the T-Mobile network[8][98] Phones supporting LTE will start to use the LTE network in the table above.


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