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[clarification needed] The technology of CDMA was used in 1957, when the young military radio engineer Leonid Kupriyanovich in Moscow made an experimental model of a wearable automatic mobile phone, called LK-1 by him, with a base station. [8] LK-1 has a weight of 3 kg, 20–30 km operating distance, and 20–30 hours of battery life.
In digital communications, a chip is a pulse of a direct-sequence spread spectrum (DSSS) code, such as a pseudo-random noise (PN) code sequence used in direct-sequence code-division multiple access (CDMA) channel access techniques.
In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM.
YouTube Music is a music streaming service developed by the American video platform YouTube, a subsidiary of Google. The service is designed with a user interface that allows users to explore songs and music videos on YouTube -based genres, playlists, and recommendations.
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Kendra Scott at the 2024 CMT Music Awards. While discussing her leadership style, Scott described the meaning behind her company's "sister rule." "We do this for our customers, how we treat our ...
A California man died and a Good Samaritan is facing serious injuries after being attacked by dogs last week. According to a statement from the San Diego Humane Society obtained by USA TODAY, the ...
Road Transport. Nellore bus station of the city operates district and long-distance services. [9] Government is planning to demolish the present APSRTC bus stand and erect a new structure in couple of years, such that the new bus station will house commercial establishments, offices and multiplex and would generate internal revenues for RTC. [10]