When set to 0, the function disables the tdd harqack bundling scrambling. Lte utilizes ir harq with a turbo encoder used for fec. The output argument, out, is the encoded bits in the same form. The figure is a conceptual illustration in the time domain of the multiplexing process.
Multiplexing is a technique by which different analog and digital streams of transmission can be simultaneously processed over a shared link. Physical layer carries all information from the mac transport channels over the air interface. The input argument, in, is a vector or cell array containing up to 20 harqack information bits. The multiplexing of feedback information like cqipmi, harq. Wo2014018984a1 hybrid automatic repeat requestacknowledge. 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. 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. In case of fdd, it is pretty simple and obvious for ue to transmit harq ack or. Multiplexing is a popular networking technique that integrates multiple analog and digital signals into a signal transmitted over a shared medium. In accordance with a more detailed example an existing harq ack multiplexing table is applied in a specific way. 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, 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. Harqack channel decoding matlab lteackdecode mathworks. If you continue browsing the site, you agree to the use of cookies on this website. 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. Harqack bundling or harqack multiplexing may not work properly if the ue does not correctly receive the scheduling information for any scheduled frames. 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. 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. 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 a first case case 1, harqack multiplexing may be performed for multiple slots or minislots on a single carrier cc. Below is a more ellaborated diagram of eutran protocol stack. Takes care of the link adaptation amc, power control, cell search. In addition, a method for operating a network node of a wireless or cellular communication network is described. 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. A number of dl subframes with harq ack feedback on one single ul subframe can comprise one bundling window. The fdm is an analog process and is shown in the figure using phones as input devices.
Multiplexing periodic csi with harqack on pucch format 3 in. Physical uplink control channel pucch resource allocation. Time division multiplexing tdm a type of multiplexing that combines data streams by assigning each stream a different time slot in a set. Harqack handling for unintended downlink subframes justia. The decoded output, out, is a vector of length oack, the number of uncoded harqack bits transmitted. 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. 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. When ue sends data to enb, enb decodes data and checks crc. 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. In a second case case 2, harqack multiplexing may be performed for slots or minislots on multiple carriers ccs e. Bundling and service multiplexing mef reference wiki.
Lets have a close look at all the layers available in eutran protocol stack which we have seen in previous chapter. Signal studio software is a flexible suite of signal creation tools that will. 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. Bundling harq feedback in a time division duplexing. Within a bundle harq retransmissions are nonadaptive. Tti bundling operation relies on the harq entity for invoking the same harq process for each transmission that is part of the same bundle. For example, in telecommunications, several telephone calls may be carried using one wire. 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 purpose of multiplexing is to enable signals to be transmitted more efficiently over a given communication channel, thereby decreasing. Pucch format 1b with channel selection is used in case of one configured serving cell. At the other end of the line, the combined signals are demultiplexed, that is, the combination of the signals is undone. Keysight technologies signal studio for ltelteadvanced lte.
Oct 29, 2015 a number of dl subframes with harq ack feedback on one single ul subframe can comprise one bundling window. Multiplexing periodic csi with harqack on pucch format 3. Tti bundling with enhanced harq arbreal time for uplink. 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. Software defined networking sdn and network function. Harqack channel encoding matlab lteackencode mathworks. Harqack symbols, 2bits downlink assignment index dai in downlink control information dci format 04. Multiplexing is the name for an operation or method which combines several signals into one, before that signal is sent over a telecommunications line. Multiplexing divides the high capacity medium into low capacity logical medium which is then shared by different streams.
Multiple virtual private services allowed at the uni with only one cevlan id mapped to each service yes. Communication is possible over the air radio frequency, using a physical media. Multiplexing software free download multiplexing top 4. Tti bundling is a method in which ue transmit a pusch in multiple subframes in a row 4 subframes according to current specification. 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.
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. 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. Keysight technologies signal studio for ltelteadvanced fddtdd. Feb 19, 2017 if alltoone bundling is no disabled then there can be one or more virtual private services on the uni. 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. Pdf overview of uplink control channel for carrier aggregation. Software multiplexing article about software multiplexing. According to rel11, the periodic csi report is 11 bits at most.
The transport block tb crc is used to detect errors. The method comprises configuring, by the network node. Downlink data transmission process harq acknack basic procedure. Metisii proposal addresses the strand radio network architecture and technologies in the ict142014 call in the h2020 program. Jun 29, 2012 multiplexing is a popular networking technique that integrates multiple analog and digital signals into a signal transmitted over a shared medium. There are 8 uplink harq processes running on both ue and enb with 4 processes delay. 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. 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. The input argument, in, is a vector or cell array containing up to 20 harq ack information bits. In other words, ue transmit a pusch in a bundled tti. Thus, it falls into category of a type iii hybrid arq. These three attributes are interrelated and the table at right explains the valid combinations.
Harq acknack bundling in downlink carrier aggregation. Multiplexing bundling see 3gpp ts technical specification 36. And enodeb can also knows about rv because ul grant dci 0 from enodeb can specify rv using mcs field. 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. Alternatively or additionally, the terminal is adapted to perform bundling of harq feedback for a plurality of carriers of a dl carrier aggregation. Multiplexing simple english wikipedia, the free encyclopedia. Lte multicodewordmimo aalto university library tkk. For tdd, spatial bundling is used if more than 4 bits.
Us20160211948a1 bundling harq feedback in a time division. Ue has to use the same harq process number every 8 subframes. In accordance with a more detailed example an existing harqack multiplexing table is applied in a specific way. This matlab function returns the coded harqack information bits after performing. For oack less than 3 bits, the decoder assumes the bits are encoded using the procedure defined in ts 36. Multiplexing does not reduce the number of licenses required to access microsoft dynamics ax 2012 r3 solution. Signal studio software is a flexible suite of signalcreation. Tti bundling with enhanced harq arbrealtime for uplink multiue simulation update excel importexport for uplink. Multiplexers and demultiplexers are used to convert multiple signals into one signal. Technologies like orthogonal frequency division multiplexing ofdm. 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. 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 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 different ways how this multiplexing can be done. Multiple codewords can be parameterized by two different. 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. Signal studio software is a flexible suite of signalcreation tools that. Mathworks is the leading developer of mathematical computing software for. The harq ack decoder performs different type of block decoding depending upon the number of uncoded harq ack bits to be recovered oack. N7624cn7625c signal studio pro for ltelteadvancedlte. Multiple virtual private services allowed at the uni and multiple cevlan ids can be mapped to each service. Aug 14, 20 lte basics lte tutorial part 1 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
1627 320 404 1402 1325 299 1094 1351 953 313 1448 484 3 593 1405 833 300 1587 171 170 717 1390 360 1409 1338 372 39 1141 1650 1559 308 31 490 435 98 651 1110 250 43 1437 359 1046 1222