Changes
LTE
,/* Major companies for low cost IP for MIMO */
This report presents a brief summary about Dolcera's capabilities in working with standards, with LTE-MIMOas an example.A detailed The taxonomy which covers most of the important aspects of LTE is presented. A sample Also presented are examples of mapping patents to standards going to the standard by using detail of graphical analysis and patent ranking is presented. LTE related Analysis of IPR declarations made to ETSI , and non-ETSI documents are also shown. '''uncovered by Dolcera Landscape Procedure'''* Background study - Background study is done with web search depending on the area of client interest.* Finding key player/inventors - Web search is carried out to find the products and technologies of key playersalso provided.* Patents Search -** Key patents search.** Prepared search queries using keywords and classification and finalized these in Micropat/Thompson.* Patents Classification - Classify all patents by creating taxonomy.* Specific analysis as required by client like SWOT, SOA, PEST, Claim, and White Space analysis.* Reporting - ** All necessary data are presented in format of wiki or in form of power point slides. ** Dashboard - Graphical representation of Patents classification.
==Rationale==
* LTE is the most suited mobile technology as it provides higher data rates required for the future and is an advancement improvement over widely used the established GSM/EDGE/HSPAsystems* A number of corporate giants are looking towards LTE is promoted by major corporates as the technology enabling future communication* The following factors advantages are expected to be obtained with the realization of LTE
** Reduced cost per bit
** Increased service provisioning - more services at lower cost with better user experience
==Background description==
LTE (Long Term Evolution), is the latest standard in the mobile network technology that came into existence because of the growing needs of faster data rates. It is a 3rd Generation Partnership Project (3GPP), which realized this technology. LTE is an advancement to previously realized technologies such as GSM/EDGE and UMTS/HSxPA etc.Although LTE is often marketed as 4G, first-release LTE is actually a 3.9G technology since it does not fully comply with the IMT Advanced 4G requirements.
[[Image:lte-evolve.jpg|centre|500px|thumb|[http://www.4gamericas.org/index.cfm?fuseaction=page§ionid=249 '''LTE Evolution''' ]]]
Voice traffic will be supported mainly as Voice over IP (VoIP) enabling better integration with other multimedia services.LTE is being designed to be a high data rate and low latency system. LTE is also aimed at minimizing cost and power consumption while ensuring backward-compatibility and a cost effective migration from UMTS systems.
[http://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/3g-lte-basics.php LTE tutorial]
There are two types of LTE frame structure:
* '''Type 1:used for the LTE FDD mode systems'''
** The basic type 1 LTE frame has an overall length of 10 ms. This is then divided into a total of 20 individual slots. LTE sub frames then consist of two slots - in other words there are ten LTE sub frames within a frame.
[[Image:type1f.jpg|thumb|centre|600px|[http://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/lte-frame-subframe-structure.php LTE frame structure]]]
* '''Type 2:used for the LTE TDD systems'''
** The frame structure for the type 2 frames used on LTE TDD is somewhat different. The 10 ms frame comprises two half frames, each 5 ms long. The LTE half-frames are further split into five sub frames, each 1ms long.
==Taxonomy==
{|border="2" cellspacing="0" cellpadding="4" width="100%"|<mm>[[LTE-taxonomyLong Term Evolution3.mm|title Long Term Evolution|border]]</mm>|} ==Major players in the ETSI list for LTE==[[Image:etsifa.jpg|centre|1000px|]] ==Relevant Documents for LTE in the ETSI list== {|border="2" cellspacing="0" cellpadding="4" width="100%"|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''S.No'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Publication Number'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Title'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Filing date'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Expiry date'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Priority Date'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Count of Cited Refs - Patent'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Rating'''</font>|-|align = "center" bgcolor = "#B8CCE4"|1|bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5754976.PN.&OS=PN/5754976&RS=PN/5754976 US5754976A]</u></font>|align = "center" bgcolor = "#B8CCE4"|Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech|align = "center" bgcolor = "#B8CCE4"|7/28/1995|align = "center" bgcolor = "#B8CCE4"|7/28/2015|align = "center" bgcolor = "#B8CCE4"| 1990-02-23 <nowiki>|</nowiki> 1992-09-10 <nowiki>|</nowiki> 1995-02-06 <nowiki>|</nowiki> 1995-07-28|align = "center" bgcolor = "#B8CCE4"|Universite de Sherbrooke, Sherbrooke, CA|align = "center" bgcolor = "#B8CCE4"|44|align = "center" bgcolor = "#B8CCE4"|2|-|align = "center"|2|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6724976.PN.&OS=PN/6724976&RS=PN/6724976 US6724976B2]</u></font>|align = "center"|Communication system|align = "center"|12/21/2000|align = "center"|12/21/2020|align = "center"| 1992-03-26 <nowiki>|</nowiki> 1992-09-25 <nowiki>|</nowiki> 1993-03-25 <nowiki>|</nowiki> 1993-09-27 <nowiki>|</nowiki> 1998-04-22 <nowiki>|</nowiki> 2000-02-16 <nowiki>|</nowiki> 2000-12-21|align = "center"|Matsushita Electric Industrial Co. Ltd., Osaka, JP|align = "center"|110|align = "center"|3|-|align = "center" bgcolor = "#B8CCE4"|3|bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6633600.PN.&OS=PN/6633600&RS=PN/6633600 US6633600B2]</u></font>|align = "center" bgcolor = "#B8CCE4"|Traffic lights in a code division multiple access (CDMA) modem|align = "center" bgcolor = "#B8CCE4"|4/24/2001|align = "center" bgcolor = "#B8CCE4"|4/24/2021|align = "center" bgcolor = "#B8CCE4"| 1995-06-30 <nowiki>|</nowiki> 1996-06-27 <nowiki>|</nowiki> 1998-02-17 <nowiki>|</nowiki> 1999-11-22 <nowiki>|</nowiki> 2001-04-24|align = "center" bgcolor = "#B8CCE4"|InterDigital Technology Corporation, Wilmington, DE, US|align = "center" bgcolor = "#B8CCE4"|85|align = "center" bgcolor = "#B8CCE4"|3|-|align = "center"|4|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7190966.PN.&OS=PN/7190966&RS=PN/7190966 US7190966B2]</u></font>|align = "center"|Method and apparatus for performing an access procedure|align = "center"|6/29/2005|align = "center"|6/29/2025|align = "center"| 1996-06-27 <nowiki>|</nowiki> 1998-01-06 <nowiki>|</nowiki> 2000-11-22 <nowiki>|</nowiki> 2002-03-01 <nowiki>|</nowiki> 2003-03-26 <nowiki>|</nowiki> 2004-06-14 <nowiki>|</nowiki> 2005-06-29|align = "center"|InterDigital Technology Corporation, Wilmington, DE, US|align = "center"|91|align = "center"|4|-|align = "center" bgcolor = "#B8CCE4"|5|bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7437177.PN.&OS=PN/7437177&RS=PN/7437177 US7437177B2]</u></font>|align = "center" bgcolor = "#B8CCE4"|Method employed by a base station for controlling initial power ramp-up using short codes|align = "center" bgcolor = "#B8CCE4"|3/14/2008|align = "center" bgcolor = "#B8CCE4"|3/14/2028|align = "center" bgcolor = "#B8CCE4"| 1996-06-27 <nowiki>|</nowiki> 1998-01-06 <nowiki>|</nowiki> 2000-11-22 <nowiki>|</nowiki> 2002-03-01 <nowiki>|</nowiki> 2003-03-26 <nowiki>|</nowiki> 2004-06-14 <nowiki>|</nowiki> 2005-06-29 <nowiki>|</nowiki> 2008-03-14|align = "center" bgcolor = "#B8CCE4"|InterDigital Communications Corp., Wilmington, DE, US|align = "center" bgcolor = "#B8CCE4"|190|align = "center" bgcolor = "#B8CCE4"|4|-|} '''Disclaimer:''' * Rating is given based on claims, no.of cited patents, expiry date and priority date* Rating is done on a scale from 1 to 5 ==Ranking of ETSI patents=={|border="2" cellspacing="0" cellpadding="4" width="100%"|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''S.No'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''International Class (primary)'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Assignee'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Title'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Publication Year'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Priority Year(s)'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Legal Status'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Rank'''</font>|-|align = "center" bgcolor = "#B8CCE4"|1|bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100182939%22.PGNR.&OS=DN/20100182939&RS=DN/20100182939 US20100182939A1]</u></font>|bgcolor = "#B8CCE4"|H04J000300|bgcolor = "#B8CCE4"|Nokia Corporation|bgcolor = "#B8CCE4"|Configuration of multi-periodicity semi-persistent scheduling for time division duplex operation in a packet-based wireless communication system|align = "center" bgcolor = "#B8CCE4"|2010|bgcolor = "#B8CCE4" |2008 <nowiki>|</nowiki> 2009|bgcolor = "#B8CCE4"|Docketed New Case - Ready for Examination|align = "center" bgcolor = "#B8CCE4"|'''2'''|-|align = "center"|2|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=EP2181559A1&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP2181559A1]</u></font>|H04W003608|Nokia Siemens Networks|Handover of a user equipment with forwarding and reusing a user equipment configuration|align = "center"|2010|2007 <nowiki>|</nowiki> 2008 <nowiki>|</nowiki> 2008|Request for Examination Filed|align = "center"|'''2'''|-|align = "center" bgcolor = "#B8CCE4"|3|bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=EP1961141A2&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP1961141A2]</u></font>|bgcolor = "#B8CCE4"|H04L000100|bgcolor = "#B8CCE4"|Ericsson AB|bgcolor = "#B8CCE4"|Efficient channel quality reporting and link adaptation for multi-carrier broadband wireless communication|align = "center" bgcolor = "#B8CCE4"|2008|bgcolor = "#B8CCE4"| 2005 <nowiki>|</nowiki> 2006 <nowiki>|</nowiki> 2006|bgcolor = "#B8CCE4"|Request for Examination Filed|align = "center" bgcolor = "#B8CCE4"|'''2'''|-|align = "center"|4|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110029834%22.PGNR.&OS=DN/20110029834&RS=DN/20110029834 US20110029834A1]</u></font>|H04L000118|Alcatel-Lucent|Method for operating harq buffer|align = "center"|2011|2008 <nowiki>|</nowiki> 2009 <nowiki>|</nowiki> 2009|Docketed New Case - Ready for Examination|align = "center"|'''2'''|-|align = "center" bgcolor = "#B8CCE4"|5|bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090086710%22.PGNR.&OS=DN/20090086710&RS=DN/20090086710 US20090086710A1]</u></font>|bgcolor = "#B8CCE4"|H04J000324|bgcolor = "#B8CCE4"|Qualcomm Incorporated|bgcolor = "#B8CCE4"|Method and apparatus for implementing lte rlc header formats|align = "center" bgcolor = "#B8CCE4"|2009|bgcolor = "#B8CCE4" |2007 <nowiki>|</nowiki> 2008|bgcolor = "#B8CCE4"|Docketed New Case - Ready for Examination|align = "center" bgcolor = "#B8CCE4"|'''3'''|-|}'''Click here to see full list of [[Ranking of ETSI patents]]''' '''Disclaimer: Patent ranking has been done according to the following logic:'''*'''Rank-1:''' Granted + LTE related (claims)*'''Rank-2''': Published + LTE related (claims)*'''Rank-3''': LTE related (Full spec )*'''Rank-4''': May be relevant and requires further analysis*'''Rank-5''': Abandoned or Expired [[Image:ptrank1.jpg|centre|800px]] '''Note:''' Here a total of '''44''' patents from ETSI have been taken, out of which '''Qualcomm Incorporated''' has '''6''' patents, '''Alcatel-lucent''' has '''8''' patents, '''Ericsson AB''', '''Nokia corporation''', '''Nokia Siemens Networks''' have '''10 each '''
==MIMO(Multiple Input Multiple Output)==
To achieve this diverse set of objectives, LTE adopted various MIMO technologies including transmit diversity, single user (SU)-MIMO, multiuser (MU)-MIMO, closed-loop rank-1 precoding, and dedicated beamforming. [http://www.hindawi.com/journals/wcn/2009/302092.html MIMO in LTE]
[[Image:mimo.jpg|thumb|700px|centre|[http://www.radion.co.in/mimo_basics MIMO working]]]
==Concept table for MIMO==
** to verify the search strategy
*Control patents are found by running a query with narrow keywords, and in this process litigation's and file wrappers are also looked at.
{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''S.No'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
|-
|align = "center" bgcolor = "#B8CCE4"|1
|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=72956246873606.PN.&OS=PN/72956246873606&RS=PN/7295624 US7295624 6873606 US6873606 ]</u></font>|bgcolor = "#B8CCE4"|Wireless system with hybrid automatic retransmission request in interference-limited communications Rate adaptive transmission scheme for MIMO systems |bgcolor = "#B8CCE4"|A wireless receiver rate adaptive transmission scheme for receiving signals from an interference-limited transmitter in an interference-limited MIMO systems, which can transmit a variable number of data symbol streams, provide transmit diversity for each data symbol stream, and fully utilize the total transmit power of the system comprising and the full power of each antenna. In one method, at least one transmit antenna, wherein the signals comprise data symbol stream is received for transmission from a plurality of symbolsantennas. Each data symbol stream is scaled with a respective weight corresponding to the amount of transmit power allocated to that stream. The receiver comprises scaled data symbol stream(s) are multiplied with a transmit basis matrix to provide a plurality of receive antennas and collection circuitry transmit symbol streams for collecting a the plurality of signal samples with at least one symbol and interference effectsantennas. The receiver also comprises suppression circuitrytransmit basis matrix (e.g., accumulation circuitry, circuitry for providing estimates of a group of bits, error detection circuitry Walsh-Hadamard matrix or a DFT matrix) is defined such that each data symbol stream is transmitted from all antennas and circuitry each transmit symbol stream is transmitted at (or near) the full power for requesting the transmitter to transmit a retransmission of a packet in response to detecting an errorassociated antenna.
|-
|align = "center"|2
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=68736067233625.PN.&OS=PN/68736067233625&RS=PN/6873606 US6873606 7233625 US7233625 ]</u></font>|Rate adaptive transmission scheme Preamble design for multiple input--multiple output (MIMO systems ), orthogonal frequency division multiplexing (OFDM) system |A rate adaptive transmission scheme for MIMO systems, which can transmit a variable number One or more preambles are inserted into frames of data symbol streamsOrthogonal Frequency Multiplexing (OFDM)-Multiple Input, provide transmit diversity for each data symbol stream, and fully utilize the total transmit power of the system and the full power of each antennaMultiple Output (MIMO) signals. In one method, at least one data symbol stream The preamble is received for transmission from a plurality by the antennas of antennas. Each data symbol stream is scaled with a respective weight corresponding receiver, decoded and compared to the amount of transmit power allocated to that stream. The scaled data symbol stream(s) are multiplied with a transmit basis matrix known values to provide a plurality of transmit symbol streams for the plurality of antennas. The transmit basis matrix (e.g.synchronization, framing, a Walsh-Hadamard matrix or a DFT matrix) is defined such that each data symbol stream is transmitted from all antennas channels estimation, offsets and each transmit symbol stream is other corrections to the transmitted at (or near) the full power for the associated antennasignal.
|-
|align = "center" bgcolor = "#B8CCE4"|3
|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=72336257248559.PN.&OS=PN/72336257248559&RS=PN/7233625 US7233625 7248559 US7248559 ]</u></font>|bgcolor = "#B8CCE4"|Preamble design Scattered pilot pattern and channel estimation method for multiple input--multiple output (MIMO), orthogonal frequency division multiplexing (-OFDM) system systems |bgcolor = "#B8CCE4"|One or more preambles A method and apparatus are inserted into frames provided for reducing the number of Orthogonal Frequency Multiplexing (OFDM)pilot symbols within a MIMO-Multiple InputOFDM communication system, Multiple Output (MIMO) signalsand for improving channel estimation within such a system. For each transmitting antenna in an OFDM transmitter, pilot symbols are encoded so as to be unique to the transmitting antenna. The preamble is received by encoded pilot symbols are then inserted into an OFDM frame to form a diamond lattice, the antennas of diamond lattices for the different transmitting antennae using the same frequencies but being offset from each other by a single symbol in the time domain. At the OFDM receiver, decoded and compared to known values to provide synchronization, framing, channels estimation, offsets and other corrections a channel response is estimated for a symbol central to each diamond of the transmitted signaldiamond lattice using a two-dimensional interpolation. The estimated channel responses are smoothed in the frequency domain. The channel responses of remaining symbols are then estimated by interpolation in the frequency domain.
|-
|align = "center"|4
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=72485597548506.PN.&OS=PN/72485597548506&RS=PN/7248559 US7248559 7548506 US7548506 ]</u></font>|Scattered pilot pattern System access and channel estimation method synchronization methods for MIMO-OFDM communications systems and physical layer packet and preamble design |A method and apparatus are provided for reducing the number of pilot symbols performing acquisition, synchronization and cell selection within a an MIMO-OFDM communication system, and for improving channel estimation within such . A coarse synchronization is performed to determine a systemsearching window. For each transmitting antenna in an OFDM transmitterA fine synchronization is then performed by measuring correlations between subsets of signal samples, pilot symbols are encoded so as to be unique to whose first signal sample lies within the transmitting antennasearching window, and known values. The encoded pilot symbols correlations are then inserted into an OFDM frame to form a diamond lattice, the diamond lattices for the different transmitting antennae using the same frequencies but being offset from each other by a single symbol performed in the time frequency domainof the received signal. At the In a multiple-output OFDM receiversystem, a channel response is estimated for a symbol central to each diamond antenna of the diamond lattice using OFDM transmitter has a two-dimensional interpolationunique known value. The estimated channel responses are smoothed in the frequency domain. The channel responses known value is transmitted as pairs of remaining consecutive pilot symbols, each pair of pilot symbols are then estimated by interpolation in being transmitted at the frequency domainsame subset of sub-carrier frequencies within the OFDM frame.
|-
|align = "center" bgcolor = "#B8CCE4"|5
|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=75485067120395.PN.&OS=PN/75485067120395&RS=PN/7548506 US7548506 7120395 US7120395 ]</u></font>|bgcolor = "#B8CCE4"|System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design |bgcolor = "#B8CCE4"|A method and apparatus are provided for performing acquisition, synchronization and cell selection within an MIMO-OFDM communication system. A coarse synchronization is performed to determine a searching window. A fine synchronization is then performed by measuring correlations between subsets of signal samples, whose first signal sample lies within the searching window, and known values. The correlations are performed in the frequency domain of the received signal. In a multiple-output OFDM system, each antenna of the OFDM transmitter has a unique known value. The known value is transmitted as pairs of consecutive pilot symbols, each pair of pilot symbols being transmitted at the same subset of sub-carrier frequencies within the OFDM frame. |-|align = "center"|6|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7120395.PN.&OS=PN/7120395&RS=PN/7120395 US7120395 ]</u></font>|MIMO communications |The present invention allows a wireless communication system, such as a base station, to select N antennas from an associated group of M antennas for transmitting multiple streams of data to a given user. Based on the channel conditions between the M antennas of the wireless communication system and the multiple antennas at the receiver, the N antennas to use for transmission are selected to enhance channel capacity, signal-to-noise ratios, or a combination thereof. The channel conditions are measured at the receiver, and may be sent back to the wireless communication system for processing or may be processed at the receiver, wherein instructions are transmitted back to the wireless communication system to control antenna selection. |-|align = "center" bgcolor = "#B8CCE4"|7|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7283499.PN.&OS=PN/7283499&RS=PN/7283499 US7283499 ]</u></font>|bgcolor = "#B8CCE4"|Simplified practical rank and mechanism, and associated method, to adapt MIMO modulation in a multi-carrier system with feedback |bgcolor = "#B8CCE4"|A method of adapting transmission parameters in a multicarrier communication system having multiple transmit antennas and/or multiple receive antennas, whereby a statistical parameter of a wideband channel is computed, one type of matrix modulation scheme is selected to be used for a given multicarrier modulation symbol, one type of signal constellation is selected to be used for a given multicarrier modulation symbol, and one concatenated channel coding rate is selected to be used for a given multicarrier modulation symbol. Multicarrier modulation symbols are then transmitted using the selected matrix modulation scheme, signal constellation, and concatenated channel coding rate. |-|align = "center"|8|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7194040.PN.&OS=PN/7194040&RS=PN/7194040 US7194040 ]</u></font>|Beam-steering and beam-forming for wideband MIMO/MISO systems |Techniques to perform beam-steering and beam-forming to transmit data on a single eigenmode in a wideband multiple-input channel. In one method, a steering vector is obtained for each of a number of subbands. Depending on how the steering vectors are defined, beam-steering or beam-forming can be achieved for each subband. The total transmit power is allocated to the subbands based on a particular power allocation scheme (e.g., full channel inversion, selective channel inversion, water-filling, or uniform). A scaling value is then obtained for each subband based on its allocated transmit power. Data to be transmitted is coded and modulated to provide modulation symbols. The modulation symbols to be transmitted on each subband are scaled with the subband<nowiki>’</nowiki>s scaling value and further preconditioned with the subband<nowiki>’</nowiki>s steering vector. A stream of preconditioned symbols is then formed for each transmit antenna. |-|align = "center" bgcolor = "#B8CCE4"|9|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7336727.PN.&OS=PN/7336727&RS=PN/7336727 US7336727 ]</u></font>|bgcolor = "#B8CCE4"|Generalized m-rank beamformers for MIMO systems using successive quantization |bgcolor = "#B8CCE4"|The telecommunications system described herein implements a multi-rank beamformer for use in wireless systems equipped with multiple transmit and multiple receive antennas. The multi-rank beamformer uses finite-rate feedback of channel conditions to achieves close to theoretical performance indicated by the water-filling algorithm, while avoiding the computational complexity associated with space time codes. In addition, the multi-rank beamforming system described herein improves on the performance of unit rank beamforming methods by maintaining the gains over space time codes over a broader range of transmission rate |-|align = "center"|10|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7702029.PN.&OS=PN/7702029&RS=PN/7702029 US7702029 ]</u></font>|MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding |In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided to enable non-unitary precoding for multi-stream transmission, where in each stream is optimized with suitable transmission power allocation and AMC. The codebook-based feedback mechanism uses a precoding codebook having a power allocation matrix which is constrained to specify that beamforming always applies full power to a predetermined beam. With this constraint, a one-bit power allocation feedback index may be used to switch between beamforming and spatial multiplexing. |-|align = "center" bgcolor = "#B8CCE4"|11|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080247479%22.PGNR.&OS=DN/20080247479&RS=DN/20080247479 US20080247479 ]</u></font>|bgcolor = "#B8CCE4"|Pilot Scheme For A Mimo Communication System |bgcolor = "#B8CCE4"|The present invention employs a pilot scheme for frequency division multiple access (FDM) communication systems, such as single carrier FDM communication systems. A given transmit time interval will include numerous traffic symbols and two or more short pilot symbols, which are spaced apart from one another by at least one traffic symbol and will have a Fourier transform length that is less than the Fourier transform length of any given traffic symbol. Multiple transmitters will generate pilot information and modulate the pilot information onto sub-carriers of the short pilot symbols in an orthogonal manner. Each transmitter may use different sub-carriers within the time and frequency domain, which is encompassed by the short pilot symbols within the transmit time interval. Alternatively, each transmitter may uniquely encode the pilot information using a unique code division multiplexed code and modulate the encoded pilot information onto common sub-carriers of the short pilot symbols. |-|align = "center"|12|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7630356.PN.&OS=PN/7630356&RS=PN/7630356 US7630356 ]</u></font>|Methods for supporting MIMO transmission in OFDM applications |Aspects of the present invention provide MAC enhancements to support the PHY features of a MIMO-OFDMA framework. The MAC enhancements involve DL burst assignment to support adaptive MIMO transmission, UL burst assignment to support adaptive MIMO transmission, fast feedback channel operation to support wireless terminal dynamic feedback of MIMO mode selection, for example space time transmit diversity (STTD) or spatial multiplexing (SM), and/or permutation mode selection, for example diversity or adjacent subcarrier mode, dynamic CQICH allocation and de-allocation and the use of CQICH_ID for DL burst allocation. One or more of these enhancements is included in a given implementation. Methods are also provided for implementing the MAC enhancements. |-|align = "center" bgcolor = "#B8CCE4"|13|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080165875%22.PGNR.&OS=DN/20080165875&RS=DN/20080165875 US20080165875 ]</u></font>|bgcolor = "#B8CCE4"|Multi-user MIMO-SDMA for finite rate feedback systems |bgcolor = "#B8CCE4"|A multi-user MIMO downlink beamforming system with limited feedback is provided to enable preceding for multi-stream transmission, where a channel codeword (u.sub.i) and one or more channel quality indicator values (CQI.sub.A, CQI.sub.B) are computed at the user equipment on the basis of maximizing a predetermined SINR performance metric (.rho..sub.i) which estimates the receive signal-to-noise-ratio (SINR) at the user equipment . The computed codeword (u.sub.i) and CQI values (or differential values related thereto) are quantized and fed back to help the base station which applies a correction to the appropriate CQI value in the course of designing the transmit beamforming vectors w and determining the appropriate modulation and coding level to be used for downlink data transmission. |-|align = "center"|14|align = "center"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100142455%22.PGNR.&OS=DN/20100142455&RS=DN/20100142455 US20100142455 ]</u></font>|Systems and methods for uplink power control |A method for uplink power control is described. A user equipment (UE) power class may be determined. An uplink multiple access scheme may also be determined. The maximum transmission power for the UE may further be determined according to the determined uplink multiple access scheme and the UE power class. |-|align = "center" bgcolor = "#B8CCE4"|15|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220040082356%22.PGNR.&OS=DN/20040082356&RS=DN/20040082356 US20040082356 ]</u></font>|bgcolor = "#B8CCE4"|MIMO WLAN system |bgcolor = "#B8CCE4"|A multiple-access MIMO WLAN system that employs MIMO, OFDM, and TDD. The system uses a channel structure with a number of configurable transport channels, supports multiple rates and transmission modes, which are configurable based on channel conditions and user terminal capabilities, employs a pilot structure with several types of pilot (e.g., beacon, MIMO, steered reference, and carrier pilots) for different functions, implements rate, timing, and power control loops for proper system operation, and employs random access for system access by the user terminals, fast acknowledgment, and quick resource assignments. Calibration may be performed to account for differences in the frequency responses of transmit/receive chains at the access point and user terminals. The spatial processing may then be simplified by taking advantage of the reciprocal nature of the downlink and uplink and the calibration. |-|align = "center"|16|align = "center"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090046800%22.PGNR.&OS=DN/20090046800&RS=DN/20090046800 US20090046800 ]</u></font>|Feedback and rate adaptation for MIMO transmission in a Time Division Duplexed (TDD) communication system |Techniques for sending a MIMO transmission in a wireless communication system are described. In one design, a transmitter sends a first reference signal to a receiver. The receiver selects a precoding matrix based on the first reference signal and in accordance with a selection criterion. The receiver estimates noise and interference at the receiver and determines channel quality indicator (CQI) or modulation and coding scheme (MCS) information based on the precoding matrix and the estimated noise and interference. The receiver sends the CQI or MCS information and a second reference signal to the transmitter. The transmitter selects the precoding matrix based on the second reference signal and in accordance with the same selection criterion used by the receiver. The transmitter then sends a MIMO transmission to the receiver based on the CQI or MCS information obtained from the receiver and the precoding matrix selected by the transmitter. |-|align = "center" bgcolor = "#B8CCE4"|17|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080188259%22.PGNR.&OS=DN/20080188259&RS=DN/20080188259 US20080188259 ]</u></font>|bgcolor = "#B8CCE4"|CQI reporting for MIMO transmissionin a wireless communication system |bgcolor = "#B8CCE4"|Techniques for determining and reporting channel quality indicator (CQI) information are described. A user equipment (UE) may determine a transmit power per channelization code, P.sub.OVSF, based on the available transmit power and a designated number of channelization codes, e.g., by uniformly distributing the available transmit power across all transport blocks and all of the designated number of channelization codes. The UE may estimate SINRs of multiple transport blocks based on P.sub.OVSF, determine CQI indices for the transport blocks based on the SINRs, and send the CQI indices to a Node B. The Node B may send multiple transport blocks to the UE based on the CQI indices. The Node B may send the transport blocks (i) with the designated number of channelization codes at P.sub.OVSF or (ii) with a second number of channelization codes at P.sub.OVSF, with the transport block sizes being scaled based on the designated and second numbers of channelization codes. |-|align = "center"|18|align = "center"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090086849%22.PGNR.&OS=DN/20090086849&RS=DN/20090086849 US20090086849 ]</u></font>|Method and apparatus of improved circular buffer rate matching for turbo-coded MIMO-OFDM wireless systems |Methods and apparatus for determining the starting points of redundancy version transmissions in a circular rate matching operation. At least one block of information bits to be transmitted are encoded to generate a plurality of coded bits, which are then segmented into a plurality of sub-blocks of coded bits. Each of the sub-blocks of coded bits is interleaved by using a certain interleaver. The interleaved coded bits of the plurality of sub-blocks are collected and filled into a circular buffer having a plurality of redundancy versions in the circular buffer, with each redundancy version corresponding to a starting bit index in the circular buffer. For each transmission, a subset of bits are selected from the circular buffer by selecting a redundancy version from among the plurality of redundancy version. The selected subset of bits are modulated by using a certain modulation scheme, and are transmitted via at least one antenna. The redundancy versions of the circular being determined such that in at least one pair of redundancy versions, the number of bits between the starting point of a first redundancy version and the starting point of a second redundancy version is not divisible by at least one modulation order. |-|align = "center" bgcolor = "#B8CCE4"|19|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060045169%22.PGNR.&OS=DN/20060045169&RS=DN/20060045169 US20060045169 ]</u></font>|bgcolor = "#B8CCE4"|Coded-bit scrambling for multi-stream communication in a mimo channel |bgcolor = "#B8CCE4"|In one embodiment, a multi-input/multi-output system includes a receiver , processor, coded bit scrambler, coded bit descrambler , and transmitter . The receiver generates demodulated symbol streams corresponding to a received signal. The processor generates coded bit sequences from source bit streams when operating in a transmit mode and bit log-likelihood ratio sequences from the information bit streams when operating in a receive mode. The coded bit scrambler scrambles the coded bit sequences to generate scrambled bit streams when in the transmit mode. The coded bit descrambler descrambles the log-likelihood ratio sequences by a real-valued descrambling sequence when operating in the receive mode, and also removes the effect of a scrambling sequence. The transmitter generates a transmit signal corresponding to the scrambled bit streams. |-|align = "center"|20|align = "center"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070105503%22.PGNR.&OS=DN/20070105503&RS=DN/20070105503 US20070105503 ]</u></font>|Systems and methods for reducing uplink resources to provide channel performance feedback for adjustment of downlink MIMO channel data rates |Systems and methods for improving the performance of a MIMO wireless communication system by reducing the amount of uplink resources that are needed to provide channel performance feedback for the adjustment of data rates on the downlink MIMO channels. In one embodiment, a method comprises encoding each of a set of data streams according to corresponding data rates, permuting the data streams on a set of MIMO channels according to a full permutation of combinations, transmitting the permuted data streams, receiving the permuted data streams, decoding and determining an SNR for each of the data streams, computing a condensed SNR metric for the set of data streams, providing the condensed metric as feedback, determining a set of individual SNR metrics for the data streams based on the condensed SNR metric, and adjusting the data rates at which the data streams are encoded based on the individual SNR metrics.
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'''Click here to see full list of [[LTE control patents]]'''
=='''[[Search Strategy - MIMO]]'''==
==Patent mapping by graphical analysis=={|border="2" cellspacing="0" cellpadding="4" width="100%"|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Sno.'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Title'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Figure analyzed'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Analyzed result'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Standard mapped into'''</font>|-|align = "center" bgcolor = "#B8CCE4"|1|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF">[http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070217538%22.PGNR.&OS=DN/20070217538&RS=DN/20070217538 US20070217538A1 ]</font>|bgcolor = "#B8CCE4"|Systems and methods for improving performance Company wise distribution of multiple spatial communication channels |align IP= "center" bgcolor = "#B8CCE4"|<font color="#0000FF">[http://dolcera.com/wiki/images/2007.pdf Figure 4 ]</font>|align = "center" bgcolor = "#B8CCE4"|DL data rate: 220 M bps for 3x3 advanced MIMO-SVD |align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF">[http://www.3gpp.org/LTE LTE release 8, category 4 ]</font>|-|align = "center"|2|align = "center"|<font color="#0000FF">[httpImage://appft.uspto.gov/netacgi/nphlte-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnumall.html&r=1&f=G&l=50&s1=%2220090232229%22.PGNR.&OS=DN/20090232229&RS=DN/20090232229 US20090232229A1 ]</font>jpg|Device, system and method of resource allocation in a wireless network thumb|align = "center"1100px|<font color="#0000FF">[http://dolcera.com/wiki/images/2009.pdf Figure 2A ]</font>|align = "center"|DL data rate: 210 M bps for a 2x2 MIMO at cell centre |align = "center"|<font color="#0000FF">[http://www.3gpp.org/LTE LTE release 8, category 5Company wise distribution of IP]]</font>|-|}
==Major companies for low cost Companies with relevant IP for MIMO further analysis ==[[Image:smallssmallsx.jpg|centre|1000px|]]
'''Disclaimer 1:''' Here primarily, companies with an average annual revenue less than 400 million USD are considered. In addition to these, some big companies whose primary interest is not LTE and those which provide IP licensing are also considered.
|}
==Company wise distribution Patent mapping by graphical analysis=={|border="2" cellspacing="0" cellpadding="4" width="100%"|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Sno.'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Title'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Figure analyzed'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Analyzed result'''</font>|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Standard mapped into'''</font>|-|align = "center" bgcolor = "#B8CCE4"|1|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF">[http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070217538%22.PGNR.&OS=DN/20070217538&RS=DN/20070217538 US20070217538A1 ]</font>|bgcolor = "#B8CCE4"|Systems and methods for improving performance of IPmultiple spatial communication channels |align ="center" bgcolor ="#B8CCE4"|<font color="#0000FF">[http://dolcera.com/wiki/images/2007.pdf Figure 4 ]</font>|align = "center" bgcolor = "#B8CCE4"|DL data rate: 220 M bps for 3x3 advanced MIMO-SVD |align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF">[http://www.3gpp.org/LTE LTE release 8, category 4 ]</font>|-|align = "center"|2|align = "center"|<font color="#0000FF">[Imagehttp:lte//appft.uspto.gov/netacgi/nph-allParser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.jpghtml&r=1&f=G&l=50&s1=%2220090232229%22.PGNR.&OS=DN/20090232229&RS=DN/20090232229 US20090232229A1 ]</font>|thumbDevice, system and method of resource allocation in a wireless network |1100pxalign = "center"|<font color="#0000FF">[http://dolcera.com/wiki/images/2009.pdf Figure 2A ]</font>|align = "center"|DL data rate: 210 M bps for a 2x2 MIMO at cell centre|Company wise distribution of IPalign = "center"|<font color="#0000FF">[http://www.3gpp.org/LTE LTE release 8, category 5]</font>|-|}==Claim Mapping=====Process Flow===[[Image:dp1.jpg|centre|1000px]]===Sample claim charting==={|border="2" cellspacing="0" cellpadding="4" width="100%"|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Note:S.No.'''</font>* The subsidiaries of Nokia includes : Nokia Telecommunication Oy and Nokia Siemens|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>* The subsidiaries of Ericsson|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Claim Language'''</LM Ericsson includes font>|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Relevant Section in LTE release 8'''</font>|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Technical Comments'''</font>|-|align = "center" bgcolor = "#4F81BD" rowspan = "24"|<font color="#FFFFFF">'''1'''</font>|align = "center" rowspan = "24"|<font color="#0000FF"><u>[http: Ericsson GE Mobile Communications Inc, ST//appft1.uspto.gov/netacgi/nph-Ericsson, Sony EriccsonParser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090318127%22.PGNR.&OS=DN/20090318127&RS=DN/20090318127 US20090318127]</u></font>* |align = "center" bgcolor = "#B8CCE4"|'''Claim1'''|bgcolor = "#B8CCE4"|'''4.2.1 PDCP structure''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan = "2"|The Subsidiaries of Alcatel includes : AlcatelPDCP layer receives data from the lower layer i.e RLC layer|-Lucent|'''A data communication method in a wireless communication system, Alcatel Shangai bell companythe method comprising: receiving, Alcatel Transmissionfrom a lower layer, Lucent Technologies, CIT Alcatel.'''* The Subsidiaries of NTT includes | [[Image: Nippondenso Co, NTT Docomoramc1.jpg|500px]]* The subsidiaries of NEC Corp includes : NEC Access technica Ltd|-|rowspan = "2"|'''a data unit having a sequence number; storing the received data unit in a buffer;'''|bgcolor = "#B8CCE4"|'''4.,NEC Laboratories3.2 Services expected from lower layers''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''* |rowspan = "2"|The subsidiaries of Phlilps includes : Philips Electronicsdata from the MAC buffer is delivered to the PDCP layer in sequence (based on sequence number) through the RLC layer|-|in-sequence delivery, Philips Intellectual property & standards.except at re-establishment of lower layers;* The subsidiaries |-|rowspan = "2"|'''determining whether the sequence number of Fujistu includes : Fujistu ten Limited, Fujitsu Microelectronics Limitedthe received data unit is equal to a sequence number <nowiki>+</nowiki>1 from a sequence number of a last delivered data unit;'''|bgcolor = "#B8CCE4"|'''5.1.2 DL Data Transfer Procedures''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''* |rowspan = "2"|The subsidiaries of AT&T includes : AT&T Mobilitynext PDCP sequence no. is always set as previous PDCP sequence no. <nowiki>+</nowiki> 1|-|set Next_PDCP_RX_SN to the received PDCP SN <nowiki>+</nowiki> 1;|-|rowspan = "2"|'''and delivering, AT & T BLS Intellectual Propertyin ascending order, AT&T Bell Laboratories, AT&T Wireless Services Incall stored data units with consecutively associated sequence numbers greater than or equal to the sequence number of the received data unit based on the determining step., BellSouth Intellectual Property Corporation'''|bgcolor = "#B8CCE4"|'''5.1.2 DL Data Transfer Procedures''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan = "2"|The data unit delivered to the upper layers in an ascending order based on the count value|-|deliver to upper layers in ascending order of the associated COUNT value|-|align ="center" bgcolor =Filing trends over the years"#B8CCE4"|'''Claim2'''|bgcolor ="#B8CCE4"|'''4.2.1 PDCP structure''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan ="2"|The layer below the PDCP layer is RLC layer|-|'''The method of claim 1, wherein the lower layer is a Radio Link Control (RLC) layer.'''| [[Image:ftframc1.jpg|thumb500px]]|1000px-|centrealign = "center" bgcolor = "#B8CCE4"|Filing trends over '''Claim3'''|bgcolor = "#B8CCE4"|'''4.2.2 PDCP entities''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan = "2"|Steps of determining and delivering PDCP data units are performed in a PDCP entity|-|'''The method of claim 1, wherein the yearssteps of determining and delivering are performed in a Packet Data Convergence Protocol (PDCP) entity.'''| [[Image:ramc3.jpg|500px]]|-|align ="center" bgcolor =Filing trends for top 10 companies"#B8CCE4"|'''Claim4'''|bgcolor ="#B8CCE4"|'''4.2.2 PDCP entities''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan ="2"|On the PDCP SDU, numbering sequence is checked, header compression is done and send to the upper layers|-|'''The method of claim 1, wherein the data unit is a PDCP Service Data Unit (SDU).'''| [[Image:lte-10ramc3.jpg|thumb500px]]|1000px-|centrealign = "center" bgcolor = "#B8CCE4"|Filing trends Claim5|bgcolor = "#B8CCE4"|'''4.4 Functions''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan = "2"|SDU is received through a re-establishment of lower layer i.e RLC layer|-|'''The method of claim 1, wherein the data unit is received through a RLC re-establishment.'''|duplicate elimination of lower layer SDUs at re-establishment of lower layers for top 10 companies]]radio bearers mapped on RLC AM|-|align ="center" bgcolor =Year by year trends "#B8CCE4"|Claim6|bgcolor = "#B8CCE4"|'''5.1.2 DL Data Transfer Procedures''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan = "2"|Header decompression or deciphering is done between the stages of top receiving and storing the PDCP data units|-|'''The method of claim 1, wherein a header decompression or a deciphering is performed between the receiving step and the storing step.'''|'''if received PDCP SN <nowiki>></nowiki> Next_PDCP_RX_SN: - '''<br>'''decipher the PDCP PDU '''as specified in the subclause 5 companies.6, using COUNT based on RX_HFN - 1 and the received PDCP SN;<br>--<br>--<br>if the PDCP PDU has not been discarded in the above: <br>- perform deciphering and header decompression (if configured) for the PDCP PDU as specified in the subclauses 5.6 and 5.5.5, respectively; <br>- if a PDCP SDU with the same PDCP SN is stored:<br> - discard this PDCP SDU;<br> - else: - '''store the PDCP SDU''';<br>---<br>---|-|align ="center" bgcolor ="#B8CCE4"|'''Claim7'''[[Image:fttf|bgcolor = "#B8CCE4"|'''5.jpg1.2 DL Data Transfer Procedures''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|thumbrowspan = "4"|1000pxThe next PDCP sequence no. is always set as previous PDCP sequence no. <nowiki>+</nowiki> 1|centre-|Year by year trends '''The method of top claim 1, wherein the sequence number <nowiki>+</nowiki>1 indicates a sequence number that is immediately subsequent to the sequence number of the last delivered data unit.'''|rowspan = "3"|set Next_PDCP_RX_SN to the received PDCP SN <nowiki>+</nowiki> 1;|-|align = "center" bgcolor = "#B8CCE4"|'''Claim8'''|-|'''The method of claim 1, wherein the sequence number <nowiki>+</nowiki>1 indicates a next sequence number from the sequence number of the last delivered data unit.'''|-|align = "center" bgcolor = "#B8CCE4"|'''Claim9'''|bgcolor = "#B8CCE4"|'''5 companies.1.2 DL Data Transfer Procedures''' 3GPP TS 36.323 V8.6.0 (2009-06) '''Packet Data Convergence Protocol (PDCP) specification (Release 8)'''|rowspan = "2"|The last delivered data unit to an upper layer is named as Last_Submitted_PDCP_RX_SN|-|'''The method of claim 1, further comprising: setting a sequence number of a last data unit delivered to an upper layer as a `LAST`.'''|set Last_Submitted_PDCP_RX_SN to the PDCP SN of the last PDCP SDU delivered to upper layers|-|}*Click [[Media:ramb.xls|here]]to download the excel sheet.*Click [[Media:pdcp.pdf|here]] to download the release for 3GPP TS 36.323 V8.6.0 (2009-06) Packet Data Convergence Protocol (PDCP) specification (Release 8)
==Ranking of Non ETSI patents==
{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Sno.'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''US Class (primary)'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Title'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Publication Year'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Priority Year(s)'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Legal status'''</font>
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Rank'''</font>
|-
|align = "center" bgcolor = "#B8CCE4"|1
|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF">[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7548730.PN.&OS=PN/7548730&RS=PN/7548730 US7548730B2 ]</font>
|align = "center" bgcolor = "#B8CCE4"|375267
|bgcolor = "#B8CCE4"|Systems and methods for improving performance of multiple spatial communication channels
|align = "center" bgcolor = "#B8CCE4"|2007
|align = "center" bgcolor = "#B8CCE4"|2006
|align = "center" bgcolor = "#B8CCE4"|Patented Case
|align = "center" bgcolor = "#B8CCE4"|'''1'''
|-
|align = "center"|2
|align = "center"|<font color="#0000FF">[http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090232229%22.PGNR.&OS=DN/20090232229&RS=DN/20090232229 US20090232229A1 ]</font>
|align = "center"|375260
|Device, system and method of resource allocation in a wireless network
|align = "center"|2009
|align = "center"|2008
|align = "center"|Docketed New Case - Ready for Examination
|align = "center"|'''2'''
|-
|align = "center" bgcolor = "#B8CCE4"|3
|align = "center" bgcolor = "#B8CCE4"|<font color="#0000FF">[http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080187066%22.PGNR.&OS=DN/20080187066&RS=DN/20080187066 US20080187066A1 ]</font>
|align = "center" bgcolor = "#B8CCE4"|375267
|bgcolor = "#B8CCE4"|Detection method and apparatus for a multi-stream MIMO
|align = "center" bgcolor = "#B8CCE4"|2008
|align = "center" bgcolor = "#B8CCE4"|2007
|align = "center" bgcolor = "#B8CCE4"|Non Final Action Mailed
|align = "center" bgcolor = "#B8CCE4"|'''2'''
|-
|align = "center"|4
|align = "center"|<font color="#0000FF">[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7796546.PN.&OS=PN/7796546&RS=PN/7796546 US7796546B2]</font>
|align = "center"|370315
|Apparatus and method for supporting multiple links in a network using frequency bands
|align = "center"|2007
|align = "center"|2006
|align = "center"|Patented Case
|align = "center"|'''4'''
|-
|}
'''Disclaimer: Patent ranking has been done according to the following logic:'''
*'''Rank-1:''' Granted + LTE related (claims)
*'''Rank-2''': Published + LTE related (claims)
*'''Rank-3''': LTE related (Full spec )
*'''Rank-4''': May be relevant and requires further analysis
*'''Rank-5''': Abandoned or Expired
==Interactive Taxonomy==
<mm>[[mmap977(1.1).mm|title LTE]]</mm>
Note:This interactive taxonomy consists of 131 sample documents.
