lte dbm

We often see the form in the HTML of the page like [if LTE IE 9] ... The code for [ENDIF] represents a statement that restricts certain browser versions to execute, so what are the rules for these judgment statements? Please see below: Project Example Description ! [If! IE] The NOT operator. This was placed immediately in front of the feature, operator, or subexpression to reverse the Boolean meaning

UBuntu 14.04 LTE set IP address and some server versions of Linux are not quite the same. For CentOS 7.0, for example, the configuration file for the NIC IP address should be/etc/sysconfig/network-scripts/ifcfg-eth0First Ubuntu 14.04 LTE under the IP address configuration file is/etc/network/interfaces。[Email protected]:/etc/network$Cat/etc/network/interfaces# Interfaces (5)fileUsed by Ifup (8) and Ifdown (

In a wireless network, a device (such as ENODEB) sends data to another device, such as a UE, by block. The sender uses the data in the block to calculate a CRC and sends it along with the block to the receiving end. The receiving end calculates a CRC based on the received data and compares it with the received CRC, and if the two are equal, the receiving end is deemed to have successfully received the correct data and reply an "ACK" to the sender; If the two are not equal, the receiver thinks th

1, ENB antenna arrival angle (LTESCAOA) beyond the normal rangeIn the OMC-R measurement reporting technical requirements, this field is defined as:"Defines the estimated angle of a user's relative reference direction. The measurement reference direction should be true north, counterclockwise. can assist to determine the location of the user, providing location services, accuracy of 5 degrees. This measurement data represents the number of samples that meet the range of criteria in the omc-r stat

In view of the previous day to write a relevant knowledge point, and occasionally due to work reasons, did not follow up every day, so decided to write today another on the key technology of LTE knowledge, but also the last son.SON: (self organized network) ad-organized networks ;Contains three aspects: self-configuring, ANR (Automatic neighborhood optimization), MRO (switching self-optimizing);Automatic configuration is the base station cell equipmen

The LTE network has several key technologies, namely: Ofdm,amc,harq,mimo,icic,sonToday first to understand OFDM; (orthogonal Frequency Division multiplexing) Orthogonal frequency Division MultiplexingThe channel is divided into multiple orthogonal sub-channels, the high-speed data signal is converted into parallel low-speed sub-data stream, and modulated to each sub-channel for transmission.Orthogonal Frequency Division Multiplexing (OFDM) system is a

Tingfang Ji (Qualcomm), etc, "cell association and interference coordination in heterogeneous LTE-A cellular networks", jsac 2010. Background: Heterogeneous LTE Networks: Macro base station + femto Base Station In macro-only cellular network, macro base stations have the same transmit power, terminal is connected to the macro Base Station with the strongest power In heterogeneous network, terminals are

Key LTE technologies for wireless communication network learning ICIC (20141220), lteicic ICIC: Inter Cell Interference Coordination, Inter-Cell Interference Coordination technology. Cell interference is a key indicator that limits cell network cell throughput, especially for cell edge users. Because the Frequency Multiplexing factor supported by the LTE system is 1, meticulous management of inter-cell inte

Since 2008, Red Bend has partnered with Alcatel-Lucent to help device manufacturers and mobile network operators deliver mobile devices and services to the market faster and more easily. Using the OMA DM client on 4G LTE devices, device manufacturers can ensure that their devices are seamlessly compatible with the operator's Custom open Mobile Alliance Device Management (OMA DM) specification. "Industry standards like OMA DM enable mobile operators to

points of the sub-carrier overlay becomes SC-FDMA symbol, because the modulation is done in the time domain, so the uplink of a UE data can be regarded as a single carrier,So called SC-FDMA. A SC-FDMA symbol corresponds to the 12*NRB sub-carrier, and a time slot consists of 7 SC-FDMA symbols.4. For example, this re, which is assumed to be re (2,3), represents the third Sc-fmda symbolic symbol of the 2nd sub-carrier on the time domain. What this symbol is. is a waveform of physical space transfe

: An SI can contain multiple sib, and multiple si have a common si window length; SIB2 content: Common channel configuration, upstream carrier frequency, bandwidth, Radio Resource, MBSFN (multimedia Broadcast Multicast Services single frequency network), Rach required information SIB3 ... SIB12: Public resources and re-election of various information; Second, the system message acquisition process the entire system receives the process to need: Obtains the MIB, obtains the Sib type1 the Si infol

 calculation of MCS, modulation order, encoding rate, spectral efficiency relationship table Reference URL: http://4g-lte-world.blogspot.tw/2012/12/transport-block-size-code-rate-protocol.html Reference URL: http://blog.richliu.com/2013/10/22/1545/ (1) Premises: Therefore, the efficiency can be simplified to the following formula: tbs= size of the transfer block (table 7.1.7.2.1-1) crc= the number of bits that are attached for error checking =24

Summary: Core platform of 3GPP, http://www.3gpp.org/ftp/Specs/html-info/23228.htm First released by 3GPP Release 5, in order to enhance packet-switched domain (UMTS) in supporting IP multimedia services. Providing back compatibility to circuit-switched domains and functionality to other IMs domains. Nowadays, IMS provides access to Internet services (e.g. email, VoIP, video, etc) overdifferent networks (3g, cable TV, WLAN, XDSL, LTE, etc ). the

control information, but are only included in RRC when RRC messages are transmitted, RRC is a carrier. Once the security mode is activated, all RRC messages (including some NAS or 3GPP messages) of srb1 and srb2 are protected and encrypted through PDCP, NAS only protects and encrypts the integrity of NAS messages. In other words, layer-2 encryption and Protection of LTE: NAS only performs control signaling encryption, while PDCP performs both contr

default CSS style should be in the first line of the HTML document, and all content judged by the conditional comment must be behind the default style.For example, the following code, in IE, the execution of the display as red, and in non-IE browser display as black. If the conditional annotation is judged on the first line, it cannot be implemented. This example can explain the compatibility problem between IE and non-IE browser.At the same time, someone will try to use Normal is the default s

IE6 and the following versions are visibleIE7 and the following versions are visibleOnly IE6 versions are visibleIn addition to IE versionIE8 The following version is visibleIE7 and larger than IE7 versions are visibleUsage:(1)You can use the following code to detect the version of the current IE browser (note: No effect is visible in non IE browsers)If the current browser is IE, but the version is lower than IE5, how to do it, you can use LTE: Is the

  A friend in the group asked a question: the Oracle 9i database failed to execute the job, and the materialized view refresh reported an error. The error message is as follows: ORA-04068: existing state of packages has been discardedORA-04062: of

Ec (2); 3. Delete member del. PHP3 & lt ;? Require (common. PHP3); $ enter the user ID to be deleted !); Elseif ($ pwd & lt; & gt; $ adminpass) error (administrator password script ec (2); script 3. Delete member del. PHP3 Require ("common.

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One. InstallationFront Note: Not using the latest version, because the latest version seems to have an environment-dependent bug, compile n many errors, difficult to pass.(1) Installation kyotocabinetMkdir-p/data0/software/Cd/data0/software/wget