This example shows how to measure the false detection probability and missed detection probability of hybrid automatic repeat request ack harqack multiplexed on the physical uplink shared channel pusch using the lte toolbox under conformance test conditions as defined in ts36. Multiple virtual private services allowed at the uni and multiple cevlan ids can be mapped to each service. May 28, 2015 harq ack bundling or harq ack multiplexing may not work properly if the ue does not correctly receive the scheduling information for any scheduled frames. Technologies like orthogonal frequency division multiplexing ofdm. In telecommunications and computer networks, multiplexing sometimes contracted to muxing is a method by which multiple analog or digital signals are combined into one signal over a shared medium. Physical layer carries all information from the mac transport channels over the air interface. Multiplexing or muxing is a way of sending multiple signals or streams of information over a communications link at the same time in the form of a single, complex signal. Multiplexing is a technique by which different analog and digital streams of transmission can be simultaneously processed over a shared link. The transport layer in the osi model, as well as tcpip model, provides statistical multiplexing of several application layer data flows tofrom the same computer. At the other end of the line, the combined signals are demultiplexed, that is, the combination of the signals is undone. Lte utilizes ir harq with a turbo encoder used for fec. Instead of use of an existing table, a possibility is to define a new harq ack multiplexing table for this use case. More specifically, the present invention relates to a method and a device for transmitting multiplexed harq feedbacks in a carrier aggregation system, the method comprising.
Harqack handling for unintended downlink subframes justia. Thus, it falls into category of a type iii hybrid arq. Tti bundling with enhanced harq arbreal time for uplink. Aug 14, 20 lte basics lte tutorial part 1 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. For oack less than 3 bits, the decoder assumes the bits are encoded using the procedure defined in ts 36. Harqack channel decoding matlab lteackdecode mathworks.
In addition, a method for operating a network node of a wireless or cellular communication network is described. Multiple codewords can be parameterized by two different. Lte multicodewordmimo aalto university library tkk. In case of fdd, it is pretty simple and obvious for ue to transmit harq ack or. Jun 29, 2012 multiplexing is a popular networking technique that integrates multiple analog and digital signals into a signal transmitted over a shared medium. Below is a more ellaborated diagram of eutran protocol stack. Multiple virtual private services allowed at the uni with only one cevlan id mapped to each service yes.
Keysight technologies signal studio for ltelteadvanced lte. The harq ack decoder performs different type of block decoding depending upon the number of uncoded harq ack bits to be recovered oack. For tdd harqack multiplexing and a subframe n with m 1, spatial harqack bundling across multiple codewords within a dl subframe is not performed, 1 or 2 harqack bits are transmitted using pucch format 1a or pucch. Timedivision multiplexing tdm is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern. In other words, ue transmit a pusch in a bundled tti. Physical uplink control channel pucch resource allocation. The n7624b signal studio for 3gpp lte fdd software simplifies creation of standardscompliant lte and lteadvanced waveforms by providing quick access to parameters in its easily mastered treestyle navigation of the signal structure. Multiplexing periodic csi with harqack on pucch format 3 in. The figure is a conceptual illustration in the time domain of the multiplexing process. A procedure used in a timesharing or multiprogrammed system in which the central processing unit, acting under control of a software algorithm, interleaves its attention between a family of programs waiting for service, in such a way that the programs appear to be processed in parallel.
For example, in telecommunications, several telephone calls may be carried using one wire. Multiplexers and demultiplexers are used to convert multiple signals into one signal. If there is up to 10 harq ack bits plus 1 sr bit, the pucch format 3 can in principle be used for multiplexing harq ack bits with any of the pucch periodic csi reporting modes. When ue sends data to enb, enb decodes data and checks crc.
The fdm is an analog process and is shown in the figure using phones as input devices. Bundling and service multiplexing mef reference wiki. Multiplexing is a popular networking technique that integrates multiple analog and digital signals into a signal transmitted over a shared medium. Signal studio software is a flexible suite of signalcreation tools that. In a second case case 2, harqack multiplexing may be performed for slots or minislots on multiple carriers ccs e. Signal studio software is a flexible suite of signal creation tools that will. Multiplexing is provided by the physical layer of the osi model, while multiple access also involves a media access control protocol, which is part of the data link layer. Lets have a close look at all the layers available in eutran protocol stack which we have seen in previous chapter.
Bundling harq feedback in a time division duplexing. In accordance with a more detailed example an existing harqack multiplexing table is applied in a specific way. Time division multiplexing tdm a type of multiplexing that combines data streams by assigning each stream a different time slot in a set. Pusch harqack detection conformance test open script this example shows how to measure the false detection probability and missed detection probability of hybrid automatic repeat request ack harqack multiplexed on the physical uplink shared channel pusch using the lte toolbox under conformance test conditions as defined in ts36. The method comprises configuring, by the network node. Multiplexing periodic csi with harqack on pucch format 3. A number of dl subframes with harq ack feedback on one single ul subframe can comprise one bundling window. Oct 29, 2015 a number of dl subframes with harq ack feedback on one single ul subframe can comprise one bundling window. The multiplexing of feedback information like cqipmi, harq.
Harqack symbols, 2bits downlink assignment index dai in downlink control information dci format 04. Keysight technologies signal studio for ltelteadvanced. May 26, 2017 multiplexing basically involves taking multiple signals and combining them into one signal for transmission over a single medium, such as a telephone line. Multiplexing is the name for an operation or method which combines several signals into one, before that signal is sent over a telecommunications line. Software defined networking sdn and network function. Communication is possible over the air radio frequency, using a physical media. Tti bundling operation relies on the harq entity for invoking the same harq process for each transmission that is part of the same bundle. If there is up to 10 harqack bits plus 1 sr bit, the pucch format 3 can in principle be used for multiplexing harqack bits with any of the pucch periodic csi reporting modes. For instance for tdd harq ack bundling or tdd harq ack multiplexing for one configured serving cell and a subframe n with m 1 where m is the number of elements in the set k defined in table 3 the ue can use pucch resource nfor. Mathworks is the leading developer of mathematical computing software for.
Us20160211948a1 bundling harq feedback in a time division. In normal case, when network send a grant dci 0, ue transmit pusch at only one specific subframe 4 ms after the dci 0 reception. Multiplexing software free download multiplexing top 4. Pucch format 1b with channel selection is used in case of one configured serving cell. In accordance with a more detailed example an existing harq ack multiplexing table is applied in a specific way. Top 4 download periodically updates software information of multiplexing full versions from the publishers, but some information may be slightly outofdate using warez version, crack, warez passwords, patches, serial numbers, registration codes, key generator, pirate key, keymaker or keygen for multiplexing license key is illegal. In a first case case 1, harqack multiplexing may be performed for multiple slots or minislots on a single carrier cc. For example, if the enodeb schedules the terminal for two subframes with a bundling window size 2, but the ue only received the last frame, but was unaware that it was scheduled in the. Multiplexing simple english wikipedia, the free encyclopedia. Downlink data transmission process harq acknack basic procedure. Harqack bundling or harqack multiplexing may not work properly if the ue does not correctly receive the scheduling information for any scheduled frames. Aug 19, 2016 for tdd harq ack multiplexing and a subframe n with m 1, spatial harq ack bundling across multiple codewords within a dl subframe is not performed, 1 or 2 harq ack bits are transmitted using pucch format 1a or pucch format 1b, respectively for one configured serving cell. Wo2014018984a1 hybrid automatic repeat requestacknowledge.
Tti bundling is a method in which ue transmit a pusch in multiple subframes in a row 4 subframes according to current specification. And enodeb can also knows about rv because ul grant dci 0 from enodeb can specify rv using mcs field. Takes care of the link adaptation amc, power control, cell search. A duplexing technique dividing a radio channel in time to allow downlink operation during part of the frame period and uplink operation in the remainder of the frame period. According to rel11, the periodic csi report is 11 bits at most.
For tdd harqack multiplexing and a subframe n with m 1, spatial harqack bundling across multiple codewords within a dl subframe is performed by a logical and operation of all the corresponding individual harqacks. Signal studio software is a flexible suite of signalcreation. This matlab function performs block decoding on soft input data in, assumed to be encoded using the procedure defined for harq ack in section 5. For tdd, spatial bundling is used if more than 4 bits. Within a bundle harq retransmissions are nonadaptive. Multiplexing bundling see 3gpp ts technical specification 36. When set to 0, the function disables the tdd harqack bundling scrambling. Harq acknack bundling in downlink carrier aggregation. A method for operating a terminal in a wireless communication network, the terminal being connected to the network via a communication link having a downlink dl carrier aggregation comprising at least two carriers, the method comprising. Multiplexing divides the high capacity medium into low capacity logical medium which is then shared by different streams.
Feb 19, 2017 if alltoone bundling is no disabled then there can be one or more virtual private services on the uni. The input argument, in, is a vector or cell array containing up to 20 harq ack information bits. Metisii proposal addresses the strand radio network architecture and technologies in the ict142014 call in the h2020 program. Tti bundling with enhanced harq arbrealtime for uplink multiue simulation update excel importexport for uplink. The decoded output, out, is a vector of length oack, the number of uncoded harqack bits transmitted. Ue has to use the same harq process number every 8 subframes. Harqack channel encoding matlab lteackencode mathworks. Multiplexing multiplexing is the use of hardware or software to reduce the number of devices or individuals that access or use the microsoft dynamics ax 2012 r3 solution by pooling connections. There are 8 uplink harq processes running on both ue and enb with 4 processes delay. Keysight technologies signal studio for ltelteadvanced fddtdd.
The output argument, out, is the encoded bits in the same form. Harq timing multiplexed mode the figure below shows the timing diagram of lte fdd uplink harq process between enb and ue xseries. Multiplexing does not reduce the number of licenses required to access microsoft dynamics ax 2012 r3 solution. Userdefinable harq and rv retransmission pattern y y uci multiplexing on pusch y y sounding rs y y y y y closed loop harq and timing adjustment ta feedback y 2x2 uplink mimo with closed loop harq y multiue simulation requires option lfp y virtual cell id for ul comp y y tti bundling with enhanced harq frc a111 fdd only y dynamic tdd. N7624cn7625c signal studio pro for ltelteadvancedlte. There are different ways how this multiplexing can be done. The transport block tb crc is used to detect errors. The present invention relates to a wireless communication system. Software multiplexing article about software multiplexing.
The input argument, in, is a vector or cell array containing up to 20 harqack information bits. This matlab function returns the coded harqack information bits after performing. The purpose of multiplexing is to enable signals to be transmitted more efficiently over a given communication channel, thereby decreasing. Alternatively or additionally, the terminal is adapted to perform bundling of harq feedback for a plurality of carriers of a dl carrier aggregation.