what are reference signals in lte?
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LTE Advanced - Downlink Reference Signal | ShareTechnote. Most of the channels (e.g, DPSCH, DPCCH, PBCH etc) is for carrying a special information (a sequence of bits) and they have some higher layer channel connected to them, but Reference Signal is a special signal that exists only at PHY layer.
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A cell phone signal booster takes any existing 4G, LTE, 3G signal and amplifies up to 32X and then rebroadcasts the boosted signal into the home, office, or car. Buying a T-Mobile 4G LTE signal booster will result in more bars, and will last you well into the 5G era. It's simple: more bars, better service.
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In LTE, the GUTI is the Globally Unique Temporary ID, and identifies the mobile device to the LTE network. ... By allocating a temporary ID to the device, the MME maintains the security of the IMSI (International Mobile Subscriber Identification) when transmitting over radio interface.
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4G LTE Network (On-Device): Download speeds: Typically between 9 – 47 Mbps, with minimum expected speeds of less than 0.1 Mbps. Upload speeds: Typically between 4 – 20 Mbps, with minimum expected speeds of less than 0.1 Mbps. Latency: Typically between 30 – 50 ms.
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While 4G LTE is a major improvement over 3G speeds, it is technically not 4G. However, most cellular carriers now advertise their networks as 4G LTE, because it sounds the same as 4G (or even better). In some cases, your phone may even display 4G LTE-A (Long Term Evolution Advanced), which is even closer to proper 4G.
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Verify and update the following settings for the Data APN: Name: T-Mobile US LTE. ... MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc. MMS proxy: <Not set>
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['The Plus in a Circle Icon. This icon means that you can save on your data usage by going into the data settings on your device. ... ', 'Two Horizontal Arrows Icon. ... ', 'G, E and H Icons. ... ', 'H+ Icon. ... ', '4G LTE Icon. ... ', 'The R Icon. ... ', 'The Blank Triangle Icon. ... ', 'Phone Handset Call Icon with Wi-Fi Icon.']
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LTE stands for Long-term Evolution, and isn't as much a technology as it is the path followed to achieve 4G speeds. ... This stands for Long-term Evolution Advanced, and it takes us a step closer to proper 4G. It offers faster speeds and greater stability than normal LTE.
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LTE. In laymans terms, the difference between 4G and LTE is that 4G is faster than LTE. The reason for this is that 4G meets the technical standards designated for it whereas LTE data transfer speed standard is merely a stopgap measure standard devised until actual 4G speed is realized.
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The specific version of OFDM used in 5G NR downlink is cyclic prefix OFDM, CP-OFDM and it is the same waveform LTE has adopted for the downlink signal. ... The 5G NR uplink has used a different format to 4G LTE.
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The first LTE networks and handsets only made use of a single 20 MHz carrier band, but LTE-Advanced introduced mixed carrier bands across LTE networks. ... With Gigabit LTE, five or more LTE carrier bands are aggregated together to provide the higher peak data rate.
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Band 30 (WCS 2300MHz): another supplementary band for 4G LTE. AT&T has deployed chunks of 10x10 across the nation.
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GSM supports both cellular and data, whereas LTE is synonymous with high-speed wireless broadband technology that supports only data. This is why most of the new cell phones use LTE for high-speed internet access and rely on GSM for voice calls.
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Synchronization Signals (PSS and SSS) In LTE, there are two downlink synchronization signals which are used by the UE to obtain the cell identity and frame timing. The division into two signals is aimed to reduce the complexity of the cell search process.
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Speed Test Results The Cell C LTE does drop to below 5mbps at times, while the Telkom LTE maintains a nice steady 10-20mbps over a three-day period. Just keep in mind the minimum speed required for HD streaming is only 5mbps.
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So the reason your phone says LTE is because you are in an area that has the fastest internet speeds. When you are in an area in which your phone says "4g" it's because you are using a cell phone tower that has the slower, HSPA, internet speed.
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The GPS satellites transmit signals on two carrier frequencies. The L1 carrier is 1575.42 MHz and carries both the status message and a pseudo-random code for timing. The L2 carrier is 1227.60 MHz and is used for the more precise military pseudo-random code.