Morning News on December 15 (Yue Ming) Recently, the Ministry of Industry and Information Technology officially issued a document agreeing that China Unicom will adjust some frequencies for LTE networking.
According to the approval of the Ministry of Industry and Information Technology, in order to improve the efficiency of the use of frequency resources, in order to improve the efficiency of the use of frequency resources, according to the Notice of the Ministry of Industry and Information Technology on the International Mobile Telecommunications System (IMT) Frequency Planning, The 900MHz, 1800MHz and 2100MHz frequency bands are adjusted for LTE networking.
Specifically, this adjustment includes all the frequency resources of China Unicom, specifically: 909-915MHz (terminal transmission) / 954-960MHz (base station transmission), 1735-1750MHz (terminal transmission) / 1830-1845MHz (base station transmission), 1940-1965MHz (terminal transmission) / 2130-2155MHz (base station transmission).
In terms of scope, Unicom is also allowed to deploy across the country. The 909-915MHz/954-960MHz and 1735-1750MHz/1830-1845MHz bands are valid until December 31, 2019, and the 1940-1965MHz/2130-2155MHz band is valid until December 31, 2018. If you need to continue using it at the expiration date, you must apply 30 days before the expiration of the period of use.
In June of this year, the Ministry of Industry and Information Technology had previously allowed China Telecom to use the 800MHz band for LTE; it agreed that China Unicom will conduct FDD LTE trials at 900MHz in 14 provinces and cities nationwide. Nowadays, it can be said that a bowl of water is completely flattened.
In my opinion, this is a major positive for China Unicom. China Unicom can make full use of low-frequency resources for LTE network construction and deployment, and effectively improve network coverage while effectively reducing costs. At the same time, the re-cultivation of the entire network band is also Subsequent carrier aggregation laid the foundation for reversing the relatively passive situation in the market competition of 4G to 4G+. However, it should be pointed out that the approval of the Ministry of Industry and Information Technology only cleared the policy barriers. In terms of spectrum re-farming and carrier aggregation, China Unicom still faces great market and technical challenges.
a bowl of water flatIn the author's view, as a regulatory department, the Ministry of Industry and Information Technology has not achieved a complete bowl of water in terms of spectrum utilization of operators.
Earlier, the Ministry of Industry and Information Technology did not distinguish between operators' 3G/4G frequency. This seems to be fair to the three operators, but the biggest beneficiary is China Mobile. After obtaining this Shangfang sword, China Mobile began to use more spectrum resources for TD-LTE. The network scale of TD-SCDMA has gradually narrowed, from the original GSM/TDS/TDL network operation to the focus on TD-LTE. .
With the advantages of first-mover, huge financial resources, huge network, and abundant TDD spectrum resources, China Mobile has begun to ride the dust in the domestic 4G market, occupying more than 70% of the market for a long time. Although China Unicom's LTE FDD system has an advantage in network peak capability, it is obviously not useful in the face of China Mobile's 2CA/3CA.
Certainly, this is not the case. In June of this year, the “Ministry of Industry and Information Technology No Letter [2016] No. 193†document was just loosened to China Telecom, allowing it to use the 800MHz band for LTE, which is a huge advantage for telecommunications and can be thoroughly Release its low frequency advantage. China Telecom also announced a new network construction strategy, focusing on 800MHz, will be the first in the country to complete the full coverage of 4G networks, the first to introduce the entire network NB-IoT. For China Unicom, the Ministry of Industry and Information Technology agreed in the "No Letters [2016] No. 194" document of the Ministry of Industry and Information Technology that it agreed to conduct LTE FDD technology tests in the 900MHz frequency band in 14 provinces and cities such as Shanghai, Jiangsu, Zhejiang and Anhui.
In the author's view, this is not fair. Among the three operators, China Unicom's strength is the weakest, and it is the most necessary policy support. The introduction of this policy is the real bowl of water; at the same time, it is also a necessary means to shape a relatively balanced market competition.
China Unicom needs more effortsAfter the spectrum resources are loosened, China Unicom has no peace of mind. The answer is not the case.
Let us first look at the original spectrum resources of China Unicom. China Unicom has three generations of GSM, WCDMA and LTE systems. Among them, GSM operates in two frequency bands of 900MHz and 1.8GHz, occupying a total of 16M spectrum resources; WCDMA occupies 25M spectrum resources of 2130-2155MHz; LTE is divided into two types, FDD works at 1840-1860MHz, and TDD works in the frequency band 2555-2575MHz. on.
The complexity of this network is the largest among the three major operators, and the CA upgrade is also the most difficult. Relatively speaking, China Mobile can aggregate 3 consecutive carriers in the 2.6 GHz band. China Telecom can also perform carrier aggregation on 1.8 and 2.1 GHz without frequency re-cultivation, while China Unicom is in the 1.8 GHz band. It is still necessary to carry out frequency re-farming in the deployment between 1.8 and 2.1 GHz bands, and the network upgrade is complicated.
At 1.8 GHz, there are still many 2G users in China Unicom's existing network that cannot be retired; at 2.1GHz, this is the main 3G bearer network of Unicom, and it is also impossible to clear the network. The new frequency is difficult to obtain in the short term. LTE FDD carrier aggregation is implemented nationwide, and the FDD+TDD carrier aggregation technology and the weak industrial chain are also difficult to apply to the competition in the short term. Especially in low-frequency resources, China Unicom only has 6M resources on GSM900. Even if it adopts new technologies such as spectrum compression or dynamic sharing, its available spectrum resources are also poor, which is bound to limit its network capabilities. In contrast, telecommunications and mobile, especially China Mobile, have considerable resources. It is necessary to continue to adopt asymmetric control in low-frequency use.
Another problem is the network market linkage. How to accelerate the rapid migration of 3G/2G users to 4G and accelerate the release of spectrum resources.
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