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This article will explain in detail which channel the lte system uses to transmit user data in the computer network. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Lte system mainly uses shared channel to transmit user data, lte is the abbreviation of long Term Evolution; lte is divided into LTE-TDD and LTE-FDD according to the different duplex mode; lte standard puts forward strict technical requirements for the system, mainly reflected in capacity, coverage, mobility support and so on.

Lte system mainly uses shared channel to transmit user data.

LTE is the abbreviation of long Term Evolution (long term Evolution). When the 3GPP Standardization Organization first formulated the LTE standard, it was positioned as the evolution and upgrading of 3G technology. Later, the development of LTE technology far exceeded expectations, and the subsequent evolution version of LTE, Release10/11 (that is, LTE-A), was identified as the 4G standard. According to the different duplex mode, LTE is divided into LTE-TDD and LTE-FDD, in which LTE-TDD is also called TD- LTE. In 2012, 3GPP TD-LTE and LTE-FDD standards were developed at the same pace.

LTE technology

LTE (Long Term Evolution) is originally the evolution standard in the process of upgrading from the third generation to the fourth generation, including LTE FDD and LTE TDD (usually referred to as TD-LTE). With the issuance of TD-LTE license in 2013, 4G networks, terminals and services have entered the formal commercial stage, which also marks that China has officially entered the 4G era. Compared with previous digital mobile communication systems, 4G network has higher data speed, transmission quality and spectrum efficiency, can accommodate more users, and supports seamless roaming between multiple services and multiple mobile networks around the world. All this comes from the major changes in the air interface technology of the wireless access network and the network structure of the core network [3].

LTE standard puts forward strict technical requirements for the system, which are mainly reflected in capacity, coverage, mobility support and other aspects, which are summarized as follows:

Peak rate-100Mbps for downlink and 50Mbps for uplink within 20 MHz bandwidth

Spectral efficiency-downlink is 3 to 4 times higher than HSDPA, uplink is 2 to 3 times higher than HSUPA

Coverage enhancement-increase the cell edge bit rate, meet the optimal capacity in the 5km range, slightly decrease in the 30km range, and support the coverage radius of 100km

Improved mobility-best performance in the 0~15km/h range, high performance in the 15~120km/h range, support for 120-350km/h, and even 500km/h in some frequency bands

Delay optimization-the one-way transmission delay of user plane data is less than 5ms, and the state transition delay of idle control plane to activation is less than 100ms.

Diversified service content-with high-performance broadcast service, improved real-time service support capability, VoIP achieves the performance of UTRAN circuit domain

Lower operation and maintenance costs-a flat, simplified network architecture that reduces the operation and maintenance costs of operators' networks.

This is the end of the article on "which channel does the lte system use to transmit user data in the computer network?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it out for more people to see.

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