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Published on 2018-7-26 09:46
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Co-frequency means that the same frequency is used for transmission and reception, and heterogeneous frequency means that different frequencies are used for transmission and reception. Each has its own strengths. For example, co-frequency can use fewer frequency resources for two-way communication; and heterogeneous frequency transmission and reception use different frequency resources, so there is less interference between each other, and transmission and reception are relatively easy to control. When communicating on the same frequency, time division multiplexing can be used, that is, different time periods are specified for transmission and reception. 4G LTE-TDD uses this time division multiplexing.
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Published on 2019-2-10 22:46
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Published on 2018-7-26 10:31
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shakencity
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Published on 2019-1-31 13:16
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YesWatt艺瓦特电子科技有限公司 傻大粗电源转换器制造商 https://apu5ob0ydv0ysskfm03hs4dtqfr97j68.taobao.com/ |
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