The hottest in Guangzhou, the largest TD in China

2022-08-16
  • Detail

Guangzhou has built the largest TD

with the deepening of the domestic TD-LTE scale-up test, as one of the first six TD-LTE pilot cities determined by the Ministry of industry and information technology, the construction of Guangzhou TD-LTE network is also being carried out in an orderly manner according to the original plan. In response to the guidelines recently put forward by the Ministry of industry and information technology to accelerate the pace of scale-up trials, expand the scale of cities and their networks involved in the trials, and better meet the needs of users to enjoy data services, Guangzhou Mobile plans to further expand the construction scale of TD-LTE pilot networks on the basis of the original planned construction scale

from the scale test scale reported by 13 cities so far, the latest reported scale of Guangzhou TD-LTE network has changed from the most ABS glass fiber reinforced materials (abs+gf) often encounter problems such as floating fiber, too short storage length of glass fiber, poor bonding between glass fiber and matrix, and initially planned 3100 additional objects, including Xingwang holding sites, to about 3700 sites, accounting for 18.5% of the total construction scale of 20000 sites in 13 cities in China in 2012, It is planned to complete the network construction by the end of 2012

Guangdong Mobile launched the TD-LTE pilot construction in March this year. The network contractor is ZTE. The frequency band used in the test complies with the unified plan of China Mobile for TD-LTE. The basic network coverage uses the method of smooth upgrading of F-band, which speeds up the progress of network construction. According to c114, by the end of July, ZTE had completed the installation of nearly 1300 site equipment in the coverage area, accounting for 35% of the total construction scale

speed up construction and optimization at the same time

according to the previous report of c114, ZTE has introduced its c-ran solution for Guangzhou Mobile's TD-LTE network. The overall network architecture adopts a three-dimensional group scheme based on macro and micro combined with small cells, which prepares the network structure for the future implementation of comp Collaboration Scheme and eicic anti-interference scheme, which can maximize the performance of interference avoidance algorithm and improve the average throughput and edge throughput of users, So as to ensure that users get a good 4G business experience

smooth evolution from 3G to 4G. For base stations based on unified platform technology, ZTE can support TD-SCDMA, TD-LTE single-mode and td-scdma/td-lte common mode through simple software configuration, so as to realize the smooth evolution from TD-SCDMA to TD-LTE

for BBU based on SDR platform, during the upgrade process, only add TD-LTE baseband board, and the software upgrade can meet td-scdma/td-lte common mode applications. At present, the RRU equipment in FA band in TD-SCDMA network is a td-scdma/td-lte dual-mode system, so it only needs to upgrade the software, and there is no need to change the hardware. Through this construction mode, we can ensure the progress of network construction and save the cost and cycle of network construction

while realizing the rapid deployment of the network, the improvement of the quality of Guangzhou TD-LTE network has also been put on the agenda. The full coverage of the university town area is completed first. ZTE has comprehensively improved the network indicators of Guangzhou University Town through various optimization means, such as site troubleshooting, neighbor zone relationship configuration optimization, pilot pollution optimization, cross zone interference control, antenna sidelobe back lobe interference control, pinhole coverage optimization, handover parameter optimization, power control optimization, PDCCH parameter optimization, etc., of which the probability of SINR 0dB is only 3.11%, and the average throughput of the whole cell reaches 28Mbps, On this basis, it will be further optimized to reach 30m

the terminal is mature and has the conditions for large-scale application.

Guangzhou Mobile launched TD-LTE user experience on May 17 this year. There are two kinds of experience terminals for users: data card and CPE. Judging from the current pilot work in Guangzhou outfield, a single zifi product provided by ZTE can meet the access of more than 20 sta terminals to TD-LTE network, and the average access rate of a single user has reached 20m, which has preliminarily met the conditions for scale application. Guangzhou Mobile plans to gradually extend the application of such terminals to public transportation, subway, high-speed rail and other transportation fields

the zifi terminal provided by ZTE supports corrugated tensile clamps at the same time: 60mm wide, 50mm high, 1 set/2 pieces, holding TD-SCDMA, TD-LTE, equivalent to cpe+wifi hotspot, smaller than the base station and slightly larger than CPE. It is reported that the government and Enterprise Department of Guangdong Mobile will also introduce zifi applications into government and enterprise projects, considering the rapid introduction of mobile global eye and other services through the deployment of zifi terminals in CBD, commercial sites, residential areas, government offices, high-end residential areas, professional markets and other scenarios

currently available LTE products include card loading, CPE, MiFi, zifi, tablet, etc. ZTE recently announced the launch of TD-LTE smart at the end of this year

according to this latest plan, the TD-LTE network in Guangzhou will become the largest TD-LTE network among the pilot cities in China. Guangzhou city has almost concentrated the scenes distributed in all regions of the country, including skyscrapers and a large number of villages in the city. There are still PHS users in Guangzhou. China Mobile expands the construction scale of TD-LTE network in Guangzhou. The impact sample low-temperature tank can deeply understand the core issues such as TD-LTE coverage, capacity, interference and so on in more scenes and in a larger range, so as to better verify the commercial ability of this network

Copyright © 2011 JIN SHI