lte failover

Network Collaboration of TD-LTE Is there mutual interference between the TD-LTE and the current 2G system in the adjacent frequency? How can this problem be solved? A: In actual network deployment, the F-band (1880-1915 MHz) TD-LTE base station will be affected by the stray/blocking/Intermodulation Interference of DCS1800, the Second Harmonic Interference of GSM

Latest Advances in TD-LTE Testing At present, the first phase of core network, transmission, bearing and security testing work has been completed in the six test fields of TD-LTE. The results meet the test expectations, and all of them have entered the formal test conditions, in the future, the wireless performance, multi-antenna, terminal, indoor distribution system, network management and other aspects of

Detailed analysis of LTE system switching technology (1) I. Switching Technology of TD-LTE System 1. Overview of TD-LTE Switching As a TD-SCDMA System of TD-LTE evolution technology, the fast hardware switching method can be used to realize the switching between different frequency bands and between systems, so as t

Recently, there are a lot of topics on TD-SCDMA. The point of view is to support and oppose the two factions, and to settle the historical scores. Personally, TD-SCDMA itself is indeed a failure, at least the masses of the eyes are discerning. But also can not completely negate the credit of TD-SCDMA, it is not the key to td-lte development and growth, not to say, but at least for Td-lte laid a foundation.

With the division of spectrum resources, a huge rock in the road of TD-LTE commercialization was moved. At the recently held "TD-LTE technology and spectrum Seminar", China's 2.6GHz spectrum planning scheme was announced,-2690hz of the 2.6GHz band all divided into TDD spectrum. The determination of spectrum division, which sent a clear signal to the TD-LTE indust

Chang gang, Ericsson China's chief market officer, said that during the construction of TD-LTE, D + F hybrid networking will be the final network form. He further stressed that for the construction of F band, F band new than the TD-SCDMA upgrade in performance, optimization and maintenance, there is no significant difference in the construction progress and investment benefits. D-band is superior to F-band upgrade According to the news, China Mobile i

Extended LTE network For Network developers, you only need to pay a little attention to the current situation of 4G/LTE communication needs, and you will be able to understand the future development trend. According to recent forecasts, mobile data traffic will increase by 11 times by 2018. More than half of the 190 EB data flowing through the wireless network will be transmitted through the 4G/

In the Last Post, "LTE Physical Transmission Resources (3)-time-frequency resources," the final mention of Pcfich and other downstream physical channels, this blog post originally wanted to write Pcfich channel, but in preparation for writing Pcfich, found the need to use the antenna port related content, and these content is not yet written. So this paper first write the antenna port and downlink reference signal related content.1. Relationship of an

operation. ：Start configuring Database Mirroring Backup and failover: Right-click the database selection you want to back up-tasks-mirroring,:Run mode Select "High Security with failover (synchronous) ... , click Configure security to start the configuration.Our demo uses 2 SQL Server servers, one witness server, configure the "Include witness server instance" step needs to check the option to "Yes", selec

LTE user documentation(if there are inappropriate places, please correct me!) )evolved Packet Core (EPC)we now explain how to write a simulation program that allows simulation of the EPC in addition to the LTE Wireless access network. The EPC allows the use of IPV4 networks to connect to LTE devices. In other words, conventional ns-3 applications and IPV4 sockets

There is types of frame structure in the LTE standard, type 1 and type 2. Type 1 uses Frequency Division duplexing (Uplink and downlink separated by Frequency), and TDD uses time division Duplexin G (Uplink and downlink separated in time). This overview covers both LTE FDD Type 1 signals and LTE TDD type 2 signals described in the standard documents listed in The

Background information: After the main library is switched switchover or failover, the client is able to obtain its own connection to the main library. Environment modification:1. Modify $oracle_home/network/admin/tnsnames.ora priocm= (DESCRIPTION = (address_list= (address = (PROTOCOL = TCP) (HOST = ocm1.example.com) (PORT = 1521)) --Main library (address = (PROTOCOL = TCP) (HOST = ocm2.example.com) (PORT = 1521)) --Reserve

What does VoWi-Fi bring to the voice communication experience in the LTE age? In the Internet era, users have high requirements on business experience, including voice services. To some extent, this can be explained that compared with the global LTE construction climax, the VoLTE business is growing more slowly. As the first telecom-level public voice service, VoLTE puts forward high requirements on the op

In tdd lte, upper and lower lines are not necessarily symmetric. When the number of downstream sub-frames is higher than that of the upstream sub-frames, the harq of multiple downstream sub-frames is reported in one upstream sub-frame. The number of harq records reported in an uplink sub-frame depends on the configuration of the LTE uplink and downlink MIMO modes. Through upper layer configuration,

Cat. That is ue-category, according to the definition of 3GPP, ue-category is divided into 1~10 a total of 10 levels, of which cat.1-5 is R8 definition, cat.6-8 is R10 definition, cat.9-10 is R11 definition. As shown above, ue-category mainly defines the upper and lower line rates that the UE terminal can support. The cat.0 is an LTE terminal grade that is written to the 3GPP rel.12 Standard and supports a lower-rate, lower-power version. cat.0 and

At present, LTE access bearer network is not widely used, but there are still many problems. So I have studied the development status and problems of the LTE access bearer network. I will share with you here, hoping it will be useful to you. From 2G/3G to LTE access bearer network, more than 90% of wireless site addresses will be reused, and 2G/3G will coexist wi

After writing the previous blog, "LTE cell search-Physical cell ID and synchronization signal PSS, SSS," I would like to continue to write system information related content, but found to write the time necessary to involve PDCCH, Phich and other content, and these content has not been systematically written. So the next few posts will write some of the LTE background knowledge that needs to be mastered.Thi

1. Frequency band (Band)The so-called frequency band , refers to the wireless decoder in the specified degree of distortion and rated output power of the operating band width, refers to a frequency range or the width of the spectrum , that is, the minimum operating frequency of the wireless decoder to the maximum operating frequency range, The unit is Hz. For convenience, in LTE, a digital 1-43 is used to denote different bands (36101-v10.21.0 version