cradlepoint lte

general, the Turbo code member encoder is a RSC encoder. The reason is that the recursive encoder can improve bit BER performance of code. Turbo Code The turbo code used in the 3GPP LTE protocol is a parallel cascaded code with a 1/3-bit rate, and its encoder consists of two RSC encoders with the same code rate of 1/2 and a interleaving, as shown in Figure 2. Since recursive convolutional codes produce more code weight than non recursive convolutio

, then the payload length of the DCI0 Bitstream is (1+1+11+5+1+2+3+2+1) = 27, so l_format=27,n=13. Because 13 (Fig. 1) (Figure 2 Table to look for when adjusting Pusch power) (Figure 3 The table to look for when adjusting the PUCCH power) 2.UE How to determine whether the current pucch adjustment or Pusch adjustment Since DCI3 can adjust the power of Pusch, can also adjust the power of the PUCCH, then how to differentiate the UE? Here the protocol uses different Rnti values to differentiate.

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

LTE user documentation(if there are inappropriate places, please correct me!) )Configure UE MeasurementsThe user measurement configuration activated in the simulation depends on the selected "Consumers", such as the switching algorithm. Users may need to add their own configurations in the following ways: Directly configured in the base station RRC entity; Configure the existing switching algorithm; A new switching algorithm is develo

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

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

Note: DCI (downlinkcontrolinformation) downlink control information Transferred from: http://blog.sina.com.cn/s/blog_927cff010101epjc.html about downlink Harq Downlink Harq using asynchronous (asynchronous), adaptive (adaptive) means that the

Buffer Status Report (BSR)    When introducing Sr, we know that the resources required for uplink data transmission are obtained through BSR, the buffer status report process is used to provide the service ENB with information about how much data

Ref: E-UTRA_Physical layer procedures_3gpp ts 36.213-v9.2.0 (2010) Summary of CQI learning: 1. Channel quality indication (CQI) report format: 2. There are two types of CQI reports: periodic and aperiodic. Periodic CQI report is transmitted by

Note: Information interactions listed in the following table, including all information related to ENB (UE ENB EPC)   MSG name Entities Comment S1 SETUP Request ENB-> NW S1ap setup S1 setup response NW->

Speaking of LTE, we immediately think of the 4G, and when it comes to 4G, many people in the mind is TDD LTE, because our first 4G license is TDD LTE, currently is TDD LTE, operators mainly for China Mobile's dominant. However, with the FDD LTE license soon to be released, C

Currently, traffic revenue is growing rapidly, accounting for about half of the operator's revenue. However, traditional voice communication revenue is still the focus of operators. However, in the 2G or 3G era, there is no obstacle in the 4G era. Complicated VoIP implementation, multiple solutions help LTE transition LTE is a full-IP network, and its network architecture can implement VoIP communication. H