`
`
`
`
`
`
`
`
`
`
`This file wrapper was thoroughly reviewed by
`our technical staff. The File History Jacket
`Cover and Table of Contents page is missing
`from the original USPTO file history.
`
`This has been brought to your attention so that
`you will know it has not been overlooked.
`
`
`ZTE, Exhibit 1008-0001
`
`

`

`Jun-ZZ-2004 16:28
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`From•S&B/F&Co
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`+613
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`T-158
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`P.004/054
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`·~· .
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`F-087
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`.--. , I
`C I
`Given Name (first and middle [If any))
`. 'MiNG
`WEN
`PEIYING
`JIANGLEI
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`INVENTORIS
`
`Family Name or Surname
`JIA
`TONG
`ZHU
`MA
`
`Reside,1ce
`ICilv and either State cir Fon:ian Counrrvl
`OTTAWA, ONTARIO, CANAPA
`. OTTAWA, ONTARIO, CANADA
`KANATA, ONTARIO, CANADA
`KANATA, ONTARIO, CANADA
`
`D Additional inventors are being named on 1111_ s&paroreJy n&Jmbsred sheets attached hereto
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`TITLE OF 'l'HE INVENTION (280 characters max)
`COMMUNICATION SIGNAL PROCESSING METHODS AND SYSTEMS
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`TYPED or PRINTED NAME: David M. Walters
`(613) 232-2486
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`·
`If you need asskttsnca in compleling the ronn, calf.1-Boo-PT0-9199 and select opti:>n 2,
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`
`P19LARGSIRl:V06
`
`.,,-.-----------;,,...;::._:;:,..::;: .. ;-:_:;:~:;:: .. ,;-;i,;~,i.,;;;,iii"~':;■fljilRRiDP-Trff'l1hfr~r,m~ti;hP.;, ii:11::~Wii°ilfi";Mi;;a;;o";eroi;afitailib:;as;;;";e~o~n;'oru9iii/11!2>i:/2'10ll10~5----------------
`
`ZTE, Exhibit 1008-0002
`
`

`

`From•S&B/F&Co
`Jun-22-200~ \ 16:29
`·
`l?l40RO
`'\
`i
`I
`, , - J t ,
`
`+613
`
`T-158
`
`P.005/054
`
`F-087
`
`COMMONICA~ION SIGNAL PROCESSING METaons AND S~STEMS
`
`l
`
`Field of the Invention
`
`This invention relates generally to communications
`and, in particular, ~o processing communication signals.
`
`5
`
`Background
`
`Known solutions to resolve MIMO feedback channels
`are very complicated.
`
`Conventional communication systems also pr(:>Vid~
`limited if any macro-diversity.
`
`10 Swmna:ry of the Invention
`
`A method of signal processing is provid,?d in one
`aspect, and comprises determining respective weights, for
`each of a plurality of signals to be 9oncurrently
`transmitted, ba~ed on feedback information from at least one
`receiver to which the plurality of signals is to be
`transmitted, and applying the determined signal weig·hts to
`the plurality of signals.
`
`15
`
`In some embodiments, the feedback info:i:·mat.ion
`comprises the respective weights.
`
`20
`
`In some embodiments, each :respective we~ight
`comprises a real or complex coefficient of one oJ: mc::,re
`elements having one or more bits.
`
`In some embodiments, the plurality of 1d9nals
`comprises respective sets of signals intended fo:c a
`25 plurality of receivers including the at least one receiver,
`and wherein the feedback intormat1on comprie=~ £~edb~ok
`
`_.,,.,_,1 "'" • •~DTI'\ ,.,,.,.. th"' n::w lm,.ne Database on 09/12/2005
`
`ZTE, Exhibit 1008-0003
`
`

`

`From-S&B/F&Co
`n-22-2004 16:29
`17140RO
`
`+SIS
`
`T-158 P.006/054
`
`F-087
`
`2
`
`information from each of the plurality of receivers for the
`se.t of signals intended for the receiver.
`
`In some embodiments, the method includee
`outputting the weighted signals for transmission from
`respective antennas.
`
`5
`
`In some embodiments, the weights. allow per antenna
`power allocation and balancing, SINR optimization frc)m the
`receive:r:, and/or joint transmit-receive closed loc,p
`optimization as Weiner solution.
`
`lO
`
`In some embodiments, determining comprhies
`determining a respective set of weights for each <,f the
`plurality of signals, the set of weights for each of the
`plurality of signals comprising respecti~e weight~·
`associated with a plurality of antennas, and wher~in
`15 applying comprises applying to each of the plurality of
`signals the corresponding set of weights to generate a
`plurality of weighted signals, and the method further
`includes combining weighted signals generated using weights
`respectively corresponding.to each of the plurality of
`20 antennas to generate a combined weighted signal for each of
`the plurality of antem.ias, and outputti~g the combiried
`weighted signals for transmission from the plural.ity of
`antennas.
`
`In some embodiments, the antennas compl:isE;1 a
`subset of antennas provided at a transmitter.
`
`25
`
`In some embodiments, the feedback informacion
`further comprises one or more of selection infor1nation for
`selecting the subset of antennas or muting information for
`mueing others than the subset or ancennas.
`
`• --- ' · .. •'--•-=i~, •-.,.-~ ,...,. • .,,""'"IP- on 09/12/2005
`
`ZTE, Exhibit 1008-0004
`
`

`

`un-22-2004 16:29
`17l40RO
`
`From•S&B/F&Co
`
`+m
`
`T-158 P.007/054
`
`F-087
`
`3
`
`In some embodiments, each of the selecti,:m
`information and the muting information comprises an antenna
`group inde~ of one or more bits.
`
`In some embodiments, ~he respective weights
`5 comprise weights associated with a plurality of antennas,
`and wherein applying comprises applying to each of the
`plurality of signals the weight corresponding to the antenna
`from which the signal is to be transmitted to gene:rate a
`weighted signal for transmission frorn·the antenna.
`
`lO
`
`In some embodiments, the me"thod further comprises
`processing either or both of the weight and signa:i. u1:;ed to
`generate the weighted signal for transmission from each
`antenna, and generating a processed weighted signu.l ·for
`subsequent transmission from each antenna using the
`15 processed weight and/or signal.
`
`In some embodiments, the plurality of signals
`comprise signals associated with a plurality of users or
`layers in a communication system.
`
`In some embodiments, the communication system
`20 comprises a MIMO system.·
`
`In some embodiments, the antennas compt·ise:
`antennas from different network elements in a communication
`system.
`
`In some embodiments, the different network
`25 elements are in an active set of network element~i fc:>r a
`communication device operating in the communicat~on system.
`
`In some embodiments, the at least one l:ec,~iver
`provides the feedback information to each of the differenc
`network elements.
`
`· ·• • ·• •. · • ''"''"'.,.,.. •.•~- ... .,. n:::w 1ma<1e Database on 09/12/2005
`
`ZTE, Exhibit 1008-0005
`
`

`

`From•S&B/F&Co
`Jun-22-2004 16:29
`J. / .L'tV~V
`
`+613
`
`T-158 P.008/054
`
`F-087
`
`•I
`
`•I
`
`4
`
`In some embodiments, the method further comprises
`concurrently transmitting the weighted signals, .and
`receiving the weighted signals at one or more rece:ive~rs
`including the at least one receiver.
`
`5
`
`In some embodiments, the weights. are as~;oc:i.ated
`with different coding rates.
`
`In another aspect, an information element :for a
`feedback channel, comprises a data field or slot identifying
`a control channel on which feedback information ii~ t,::> be
`transmitted, and a data or slot field for c:arryin!-3 feedback
`type information indicating a type of the feedback
`information. The information element may also includes data
`field or slot for carrying feedback cycle informacion
`indicating a cycle of tra·nsrnission of the f eedbacl<:
`information on the control channel.
`
`10
`
`15
`
`According to another aspect of the invention,
`there is provided a method of processing communication
`signals, comprising selecting antennas to transmit the
`communication signals; determining weights for ea.ch selected
`20 antenna; and applying the weights to respective e.igrtals to
`be transmitted by the antennas.
`
`In a still further aspect, the inventicm provides
`a method of providing macro-diversity in a oommunicc1.tion
`system, comprising defining a soft handoff zone c~omprising a
`plurality of necwork elements in the communic:aticm 1system;
`and transmitting communication signal from the plurtality of
`network elements to a communication terminal.
`
`25
`
`In some embodiments, transmitting comp:cis1~s
`t.11.c
`transmitting the communication Slgnal !or proces,~1ns d.t:
`30 communication terminal to energy combine version;,; of the
`
`-
`
`· "' -.. _,,q_ ... ,.., 11<=-o..-r, ••~.,,. •1--,., •cw •nta~e Data1i1:1~e on 09/12/2005
`
`ZTE, Exhibit 1008-0006
`
`

`

`From-S&B/F&Co
`Jun-22-2004 16:29
`l'/14UJ:<.U
`
`.,
`
`5
`
`+613
`
`T-158 P.009/054
`
`F-OBT
`
`communication signal for which relative delays are: smaller
`than a prefix of the communication signal.
`
`In some embodiments, the method further in<::ludes
`coordinat:ing schedulers of the network elements so that·
`5 different communication terminals use different data
`regions.
`
`In some.embodiments, the transmitting comprises
`mapping the communication signal onto.di~ferent sub-channels
`associated with different diversity branches for processing
`10 at the communication terminal to demodulate signals from
`each network element, combine soft bits from each network
`element, and decode data based on the combined soft bits.
`
`In some embodiments, transmitting comprises
`turning off transmission from a. subset of the netwoi:·k
`15 elements in the soft handoff zone to thereby achieve.
`interference avoidance.
`
`· In some embodiments, turning off compri ses1
`selecting network elements to turn off based on i.nfc,rmation
`from the communication terminal.
`
`20
`
`~-
`
`In some embodiments, the information cmmpJ:ises an
`indication of which network elements have a relat.ivE~ · delay
`larger than a prefix of che communication signal.
`
`2s
`
`In some embodiments, transmitting compl·:is,~s
`transmitting the communication signal for proces:3ing at the
`communication terminal to demodulate data from C<.Jmmuniqation
`signals from each of the network elements and to select one
`of the received communication signals from which data was
`ccrrcoe1y dcmodul~ted.
`
`r--.. -~-.,u.,,1 hu llc;PTO from the IFW lm::ine Database on 09/12/2005 ~='------------
`
`ZTE, Exhibit 1008-0007
`
`

`

`Fram•S&B/F&Co
`Jun-22-2004 16:29
`l7l4UKU
`
`+613
`
`T-158 P.010/054
`
`F-087
`
`6
`
`In some embodiments, transmitting cornpriseE:
`selecting a numbe:r of antennas from an antenna poc,1
`comprising antennas of the network elements, and detE!rmining
`a MIMO transmission mode.
`
`5
`
`In some embodiments, determining compri~Jes
`determining based on one or more of capability of the
`communication terminal and channel condition.
`
`In some embodiments, selecting comprises selecting
`for each of a plurality of sub-channels.
`
`10
`
`In some embodiments, selecting comprises selecting
`according to a pre-determined antenna selection formula.
`
`In some embodiments, the method further comprises
`selecting one of the network elements as an anchor network
`element.
`
`15
`
`In some embodiments, the anchor network element
`coordinates the necwork elements of the.soft handoff zone to
`avoid channel estimation interference
`
`A method of MIMO communications is alsc> provided,
`comprising selecting antennas from a plurality oi:
`20 communication devices; and transmitting MIMO signals from
`the plurality of antennas. ,
`
`.,
`
`In some embodiments, transmitting compris,~s ·
`mapping symbols to the plurality of antennas.
`
`In some embodiments, the symbols are OFDM symbols.
`
`25
`
`In some embodiments, selecting comprises open loop
`selection.
`
`--.c..-__;;,,;,,;_;:_;:...:;__ _ __ _ __ _ _
`-•-••Uo,_, hu I l~PTO from the ll=W Image Database on 09/12/2005
`
`ZTE, Exhibit 1008-0008
`
`

`

`Jun-22-2004 16:29
`From-S&B/F&Co
`l 7l.4U.KU
`
`+613
`
`T-158
`
`P.011/054
`
`F-087
`
`•·
`
`7
`
`In some embodiments, selecting comprises closed
`loop selection based on information from a commun:icat.ion
`signal receiver.
`
`f:1
`
`In some embodiments, the information is sent from
`the receiver to the plurality of communication device:!S.
`
`5
`
`A method of providing diversity for uplink
`communications in a communioation system is also provided,
`and comprises constructing joint MIMO transmission b,ased on
`frame selection.
`
`10
`
`Embodiments of the invention may also b~
`implemented in computer-readable media and systems having
`inputs and processors for example.
`
`Detailed Desdription of Preferred Embodiments
`
`Embodiments of the invention present a unified
`15 method for closed loop MIMO air-interface design frame work.
`MIMO transmission format and signalling apparatus are
`generalized to allow a variety MIMO schemes to operate by
`using the same air-interface design, According t.o c,ne
`aspect of the invention, basic transmission form=~ts include:
`(l} spatial multiplexing (SM) and (2} space-time tr,msmit
`diversity (STTD), with vector or matrix weighted full MIMO
`or sub-MIMO transmission based on 2, 3 and 4 transmit
`antennas configurations, for example.
`
`20
`
`The proposed schemes are also generali:~ed to the
`25 multiple base station transmission.
`
`Spatial multiplexing (V-BLAST)
`
`ar.12\ST i~ ~ieo c~11ed sp~tial muiciplexing {SM).
`This transmission format allow~ maximum parallel
`
`Coov orovided bv USPTO from the IFW lmaae Database on 09/12/2005
`
`ZTE, Exhibit 1008-0009
`
`

`

`Jun-22-2004 16:29
`1'7140RO
`
`From•S&B/F&Co
`
`..
`
`8
`
`+613
`
`T·l58 P.012/054
`
`F·D87
`
`.
`.
`transmission of data streams and can achieve a the(')ret.ical
`capacit:y limit.
`
`For an open loop MxN MIMO SM transmission, the
`transmission matrices are presented below in Table 1:
`
`5
`
`Table 1 Basic SM matrices
`
`2-tranemit
`matrix-A
`Time k
`
`[;:]
`
`3-transmit
`matrix-13
`Time k
`
`[;:]
`
`T.r,
`n-2
`Tx3
`n-,
`
`4-transmit
`ma.trix-c - -
`Time k
`·-
`- -
`
`Si
`
`S2
`
`S3
`s
`... 4_
`
`--
`
`the receiver ancennas
`For M transmit antenna SM,
`N>;:M. HoweV'er, maximum likelihood decoding or spherical
`decoding techniques can requires fewer receive anc·ennas,
`10 e.g. N=M-l, to achieve.superior decoding performance.
`
`Vector weighted closed loop transmission
`
`For MxN MIMO vector weighted SM transmission
`according to an embodiment of the invention, the
`transmission matrices are:
`
`15
`
`Table 2 Vector weighted SM mat:t'ice:s
`
`4 - tra?l.Sm.i t
`matrix-c
`Time J,;
`
`-
`
`~
`
`W1S1
`
`2-transmit
`matrix-A
`Time k
`
`[ lijSI]
`
`W2S2
`
`3-transmit
`mat:rix-B
`Time k
`
`[ W1S1 ]
`W2S2
`
`wls3
`
`Tx1
`1x,
`
`b,
`2'x4
`
`W2S2
`
`W3S3
`
`..
`
`-
`W4S4
`
`" - " ' " "'~"'";,,ip,1 hu IIC::.l>TO from the IFW lmaQe Database on 09/12/2005
`
`ZTE, Exhibit 1008-0010
`
`

`

`Jun-22-2004 16:30
`l7l40RO
`
`From•S&B/F&Co
`
`+613
`
`T-158
`
`P.013/054
`
`F-087
`
`9
`
`Vector weighted SM allows, for example, per
`antenna power allocation and balancing, SINR optimlzacion
`from the :receiver, and joint transmit-receive clos-~d loop
`optimization as Weiner solution.
`
`5
`
`Matrix weighted closed loop transmission
`
`the advantage of closed lc:,op
`For NxN MIMO,
`feedback is water-filling (the so called PARC, i.e. :i;:,er(cid:173)
`antenna rate control). No additional gain can be achieved.
`MxN MIMO vect:or weighted SM transmission accordin~r tc, an
`10 embodiment of the invention has associated transmission
`matrices of:
`
`Table 3 Matrix weighted SM matrices
`
`2-transmit
`matrix-A
`Time k
`
`[ l<\S1 +~S2]
`
`W:JS1 +W4S2
`
`Tx1
`
`:lx2
`
`T.c-3
`
`'/x4
`
`3-transmit
`matrix-B
`Time k
`
`W4S1 +W5S2 +w6s3
`
`WojS1 +'r\hS2 +~S3
`
`[ ~s, +~2 +~3 l '"151 +11zS;i +~p3 +i,~S4
`
`4-transmit matrix-
`C
`Time k --
`-
`
`-
`
`l-lsS1 +W68:1 +¾1-% +11gS4
`1-1{i.S'1 + "1i rh + 111 n + l1faV4
`... \11#1 +lifi;S2+1'1f/3 +hf<JS'4.
`
`15
`
`The matrix weighted MxN SM transmission can be
`applied to single user reception case where N>-M or to the
`multi-user concurrent transmission cases, such as, 2.>:2xl,
`4x4xl, 4x2x2, 4x3x2xl, for example.
`
`Tables 4-6 and Figures 1 and 2 below pl:ov:~de
`illustrative examples of configurations of matri~, w1:dghted
`SM and beamformers.
`
`20
`
`Table 4 Configuration of Mat.rix weighted SM mat.rix-A
`
`User
`Aeoi
`
`Ttanamit:
`Beamform
`
`channel
`Ma.1:ri:x:
`
`Unieary
`'coiiipreaeed
`Macri~/Vecto~ Ou8:l'\t:izer
`
`ZTE, Exhibit 1008-0011
`
`

`

`Jun-22-2004 16:30
`l7l40RO
`
`Frcm-S&B/F&Cc
`
`+613
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`T-158
`
`P.014/054
`
`F-087
`
`10
`
`.
`
`User-l
`
`User-l
`User-2
`
`[;:]
`[;:]
`
`[ Wi.S1 + W2Si]
`
`W3S1 +W4.S2
`
`[h11 ~2]
`
`,,,,_,.
`
`h:i1
`
`[hu h1:i]
`["21
`"2:d
`
`X
`
`X
`X
`
`X
`
`X
`X
`
`G,
`
`X1 X2
`
`User#1
`
`V1
`
`v,.
`
`x,
`User#1
`
`X2
`User#2
`
`C0nfiguration~1
`
`Configuration-2
`
`--
`
`Figure l Example of beamforming SM transmission of
`Matrix/Vector weighted matrix-A, wher~in configuration-l
`S corresponds to vector weighting and configuratio:n.-2
`corresponds to matrix weighting.
`
`Table 5 Configuration of Matrix weighted SM matrix-a
`
`!Jeer
`St:rea111
`~seianmen-c Ma1:1oin1:J
`
`Traruim:i.,:
`Beamform:l.nCI'
`
`["\81 + ..,,, + ,.,,, ]
`W4S1 + W5S1, + \\'&S3
`W7S1 + WsS2 -t W9S3
`
`User-1
`
`[::]
`
`User-2
`
`User-1· [::]
`[;:]
`
`User--1
`User-2
`t1~c:::r-3
`
`j Compressed
`channel. Maerix Unit~
`Matdx/Vecc·or Quantizer
`
`h., l
`
`X.
`
`X
`
`X
`
`X
`
`X
`
`X
`
`X
`
`X
`
`r" h,,_
`
`~1 hz,. h2l
`h33
`h31
`h32
`
`[hu biz hn]
`
`[ ~I h,2 h,3]
`hz1 ~ h2:1
`lhi, hii h13j
`lha1 ¾2 Jinj
`Iha, ~1 ht:il
`
`t"nm, nrnvirf Pd hv USPTO f
`
`h
`t e IFW lmaae Database on 09/12/2005
`
`ZTE, Exhibit 1008-0012
`
`

`

`in-22-2004 16:30
`17140RO
`
`From-S&B/F&Co
`
`+613
`
`T-158
`
`P.015/054
`
`F-087
`
`l l
`
`Table 6 Configuration of Matrix weighted SM matrix-c
`
`Channel Matri;o1;
`
`h1a ~.]
`
`r· hi,
`
`h-:1 ~ hi3 hz4
`~,
`"32 ~) ~4
`h41
`h42
`
`h43
`
`h44
`
`uniury
`Mat:ri#
`Vec:t.or
`
`Comprei;eed.
`Qilant:i:ier
`
`X
`
`X
`
`Uaer
`Assignment:
`
`Stream
`Mapping
`
`Tranamit aeamfo:rming
`
`[ "''• + ..,,, + ..,,, + "'•'• ]
`W;ll1 +W6-'3 +IV1Ss 't'We.S,
`
`w~I 1" W101:i +w.,si +\")2S,
`
`Wns, T WJ4S1 + IV15.f3 + Wi6S♦
`
`m
`m
`[~~]
`[~!]
`m
`
`User-l
`
`User-l
`
`User-2
`
`User-1
`User-2
`Use:r-3
`
`User-1
`
`User-2
`
`User-1
`
`User-2
`
`User-3
`
`User-4
`
`X
`
`X
`
`X
`X
`X
`
`X
`
`X
`
`X
`
`X
`
`X
`
`X
`
`["ll h12
`h._3 ~] X
`[h;l ~2 ~J ~4]
`
`h41
`
`h42
`
`n43
`
`h44
`
`hz1 hrz ~J
`
`X
`
`h..4
`"12 hi,
`'1i1
`X
`lr,,1 ~ h-;_3 ~4j X
`"33 h;4] X
`h43
`h44
`
`[~I ~2
`
`h,1 h,2
`
`.·
`
`fJi I
`lzi4
`/zi3
`lzi2
`[,.,, h,, bu
`,.,,]
`~l h;a
`"33 ~4
`h41
`h42
`h43
`h44
`
`lhu · hi.2
`
`/;3
`
`"14]
`
`X
`
`X
`
`X
`
`[h21
`
`lh1,
`
`h22 hu h2,J X
`
`h32
`
`h33 hl,] X
`
`lh,1 h,2
`
`h43
`
`h44 I X
`
`· •F•'·'•-' ,.,. "Cl'l>Tf'I ,.,... ... •h,.,, ii:w lm,e:,oe Database on 09/12/2005
`
`ZTE, Exhibit 1008-0013
`
`

`

`·22-2004 16:30
`17140RO
`
`From·S&B/F&Co
`
`+613
`
`T-158
`
`P.016/054
`
`F-087
`
`12
`
`Configuratlol'l-1
`
`Y, Y2
`Uaer 111
`
`llz
`x\
`u,er 112
`
`conflguratlon•2
`
`Figure 2 Example of beamforming SM transmission of Macrix
`weighted matrix-C
`
`Feedback channel design
`
`5
`
`An illustracive example of an information element
`(IE) for a feedback channel supporting embodiments of the
`invention is shown below in Table 7.
`
`Table 7 CQICH Enhanced allocation IE format
`·-
`
`Syntax.
`
`Size Notes
`in
`bits
`
`CQICH Enhanced Allee
`IE{)-{
`-
`Ex.tended DIUC
`Length
`CQ!CH_ID
`
`Period (::::p)
`Frame offset
`
`4
`
`4
`varia
`ble
`2
`3
`
`-
`Ox09
`Length in bytes of fol.lowing fields
`lndcx to uniquely identify the CQICH resource assigned to
`the MSS
`A CQI feedback is transmitted on the CQICti every 2 "'p frames
`The MSS stans reporting at the frame ofwJ,ic:h the number has the same
`3 LSB :is the specified frame offset. If the c,1rrent frame is specified, the
`MSS should Stan reponing in 8 frames
`
`D'\.1:t:oation l~d>
`
`2
`
`A CQI feedback is trar~sml.tted on the
`CQI cnannelo indexco. 1;;,y t.he: co:i:c:a_:co
`for lO x 2"'d frames. 1 f cl== o, t.he
`CQICH is de-allocated, !1: d == 111,
`
`--
`
`· ·----,. •-··~· .,..., ,.:m •-.. ,.~ natabase on 09/12/2005
`
`ZTE, Exhibit 1008-0014
`
`

`

`n-22-2004 16:30
`17l40RO
`
`From-S&B/F&Co
`
`+613
`
`T·l58
`
`P.017/054
`
`F-087
`
`13
`the MSS should report un ti 1 the BS
`command for the MSS to s to p.
`0000 = Fast DL measurement
`0001 = Layer specific channel strengths
`00)0 = Antenna weight assoei11ted with specific
`el'tna
`ant
`0011 d MIMO mode and pez
`mu
`t.aeion
`zone feedback
`0100 ..: 2x 1 channel matrix
`0101 = 2x2 channel matrix
`0110 ~ 4xl channel mattix
`0111 ""4x2 channel mattix
`1000 = 4x4 channel matrix
`100 J - 11 J1 reserved
`Number of ~QICHs assigned to this CQICH_I O is (CQICH_Nurn
`+1)
`
`lndci< to the fast fc:edback channel region marl .. e
`UIUC=O
`
`)
`
`7c
`00 = No MIMO and pennutation mode feedbac
`0 l = the MlMO and pennuration mode indicati
`hall be transmined on
`ons
`the CQICH indc,ced by the CQJCH_ID evr:ry 4 ftan ,es. The first
`indication is sem on the 8111 CQIC!-1 frame.
`10,.. the MIMO mode and pennutatio~ mode in die: titian shall be
`· mmsmitted on the CQICH indexed by lhe CQ[ CH_ I}) every 8 frames.
`The first indication is sent on the 8 Ch CQICH
`frame.
`t t = the MJMO mode and pmnut:ition mode in
`:arton shall be
`die
`CH_
`transmitted on the CQICl{ indexed by the CQI
`.ID every l 6 frames,
`The firs1 indication is senr on me 161hCOICH ~ e.
`The padding bitS is used ro i:nsurc the IB size is int egernumber
`of bytes.
`
`4
`
`4
`
`G
`
`Feedback_type
`
`CQIC!l_Num
`
`for
`(i=O;i<CQICH Num;i++
`{
`)
`Allocation index
`
`-
`
`}
`if (Feedback .... type !=0011} {
`MIMO _pennutation_feedback
`cycle}
`
`Padding
`
`variable
`
`CQICH ID
`
`.,
`
`The CQICH_ID uniquely ident:if ies a fast feedback ,:ha:nnel on
`which a MSS can transmit fast feedback informatio.n. With
`this allocation, a one-to-one relationship is established
`between the CQICH_ID and the SS.
`
`s
`
`feedback type
`
`This field specifies the types of the actual feectbac:k
`information on CQICH.
`
`10 CQICH Num, Allocation index
`
`if (Feecibaek_type ~= 0000) {
`
`•
`
`C
`
`•
`
`•
`
`•
`
`• . , . , , . . , . . . " ' • · - - •1-~ ''='"' •-.,.~ .. f"l~t~base on 09/12/2005
`
`ZTE, Exhibit 1008-0015
`
`

`

`·22-2004 16:30
`l7140RO
`
`From-S&B/F&Co
`
`+613
`
`T-158 P-018/054 F-087
`
`14
`
`CQICH_Num = number of BS antennas
`(CQI for each antenna)
`Allocation indices are assigned to each numbered BS
`antennas} -
`
`5
`
`10
`
`elseif ( (Feedback_cype ""= 0001) &(STC::=01) &(No. ss ante!nnas
`;=2)) { \* STC"" STC field in STC_Zone_IE()
`CQICH_Num"" 4
`{layered feedback)
`Allocation_indeces are assigned in the following ordeJ:- in
`the matrix: (1,1), (1,2}, (2,l), (2,2) }.
`elseif ({~eedback_type == 0010} & {STC == Ol)) {
`{vector weight for 2 tr;ansmit)
`
`CQICH Num = l
`15 Allocation-index is assigned to 2nd BS antenna}
`elseif ((Feedback_type == 0010) &
`(STC ~= 10)) {
`(vector weight for 4 transmit)
`
`CQICH Num"" 3
`20 Allocation-indices are assigned to 2nd, 3rd and 4th antennas
`}
`
`elseif (Feedback_type ""= 0011} {
`CQICH Num = number of BS antennas
`25 Allocation-indices are assigned to the top 2 or 4 mod.es
`selected by MSS}
`(adaptive STC)
`
`elseif (Feedback_type ~= 0100) & {STC ~~ 01)) {
`(2xl channel matrix;
`CQICH Num = l
`30 Allocation-indices are assigned :to the channel el,?ments}
`
`35
`
`elseif (Feedback_type == 0100) & (STC == 01)) {
`CQICH Nurn = 3
`(2x2 channel.matrix)
`Allocation-indices are assigned to the channel elements}
`elseif (Feedback_type == 0101} & (STC == 10)) {
`CQICH Num:;; 3
`(4xl· channel mat:rix)
`.
`Al:location indices are assigned to the channel elememts}
`40 elseif (Feedback_type ;= 0110) & (STC == 10)) {
`(4x2 channel matri:>:)
`CQICR Num _,. 7
`Allocation-indices are assigned to the channel elemEmts}
`elseif (Feedback_type ;~ 0111) & (STC == 10)) {
`(4x4 channel matri:-c)
`CQICH Num ::: 15
`Allocation-indices are assigned to the channel elements}
`
`45
`
`End
`
`·-,.. • "'~-- ""'
`
`4
`
`"'""'~~ on 09/12/2005
`
`ZTE, Exhibit 1008-0016
`
`

`

`·22•2004 16:S0
`17l40R.O
`
`From•S&B/F&Co
`
`+613
`
`T·l58
`
`P.019/054
`
`F-087
`
`MIMO permutation feedback cycl~
`
`lS
`
`This field specifies the MIMO and permutation mode fast
`feedback cycle.
`
`5
`
`MIMD.permutation feedback cycle.
`
`This field speoifies the MIMO and permutation mode
`fast feedback cycle.
`
`10
`
`Table 8 Example encoding of payload bits for Fas1;-fcaedback
`· slot
`
`Value
`ObOOOO
`ObOOOl
`
`ObOOlO
`
`ObOOll
`
`ObOlOO.
`
`ObOlOl
`
`ObOllO
`
`ObOlll
`
`OblOOO
`
`OblOOl
`
`OblOlO
`OblOll
`
`Descrh>tion
`STTD and PUSC/FUSC permutatio n
`STTD and adjacent-subcarrier
`permutation
`SM and PUSC/FUSC permutation
`SM and adjacent-subcarrier
`permutation
`Closed-loop SM and PUSC/FUSC
`permutation
`Closed-loop SM and adjacent-
`subcarrier permutation
`Closed-loop Beamfo:rming and
`adj acent-subcarrier perrnutat:l on
`Closed-loop SM with matrix
`weighting and PUSC/FUSC
`permutation
`Closed-loop SM with matrix
`weighting and adjacent-
`subcarrier permutation
`Closed-loop Beamforming with
`matrix weighting and adjacent
`subcarrier permutation
`SubMIMO SM
`SubMIMO SM/BF
`
`,•,•, . ,-.. ,' · · · · · "'.,. • .,. .. .,,.,.,,. "" 09/12/2005
`
`ZTE, Exhibit 1008-0017
`
`

`

`·22·2004 16:31
`17l40RO
`
`From-S&B/F&Co
`
`+613
`
`T-158 P.020/054
`
`F-087
`
`16
`
`Obl100
`0bll0l
`
`Oblll0-1111
`
`SubM!MO S-STTD
`SubMIMO D-STTD
`reserved
`
`Spatial multiplexing when M>N
`
`Antenna selection and signal pre-processing can be
`used to significantly enhance link level performances. The
`
`5
`
`SNR. relation is: rpp>r/#>>Y1a' where Yppl Yost and Y;a are the
`
`SNRs of pre-processing, antenna selection, and fi:x.ed antenna
`configuration (using N fixed cransmit antennas f:rom a pool
`of M). The gain of signal pre-processing over antenna
`selection is mainly from the so called beam-forming. The
`10 gain of antenna selection over fixed antenna conf:i.guration
`is from two areas: diversity.gain and average SNR. ga.in (over
`STC). The water-filling principle can be applied to both
`antenna selection and beam-forming. Antenna selection is
`the most simple and effective way to achieve diversity and
`15 SNR gain.
`
`Single user with single antenna
`
`A single stream transition-selective d:iversity
`technique is represented_in Table 9:
`
`Table 9 SISO selective transmit diversity
`
`b 0b:i.==OO
`bobi==Ol
`. bob:i.=10
`bob1==ll
`
`Tim~ l
`Time l
`Time t
`Time t
`
`fil
`.St
`0
`0
`0
`
`Tx2
`0
`
`S1
`0
`0
`
`20
`
`· • -~ •
`
`.. "· • •o:i•f •-.,,. ... n.,. • .,.i.,.,.c:;fl on 09/12/2005
`
`Tx'J
`0
`0
`
`S1
`0
`
`-
`-
`
`1x4
`0
`0
`0
`
`S1
`
`ZTE, Exhibit 1008-0018
`
`

`

`22-2004 16:31
`l7140RO
`
`From-S&B/F&Co
`
`+613
`
`T-158
`
`P.021/054
`
`F-097
`
`17
`
`An antenna index feedback signal is requ:,.red in
`this case (2 bits).
`
`2-stream spatial multiplexing for single user
`
`S
`
`An embodiment of the invention proposes .;::losed
`loop sub-MIMO selection for SM. For a DL AMC sub-channel
`4x2 sub-MIMO system:
`
`Denoting
`
`lf,i =[~: :::] H,, =[::: 1:] ll23 =[~ ~:]
`lO H14 =[1:: ~:] H24 =[~: ~] H34 =[:: ::]
`
`and selecting the sub-system Hq that satisfies
`
`the best mode of the 2 x 2 sub-MIMO system can be cLetE3rmined.
`Null sub-carriers are preferably fed into non-selected
`15 antennas. An illustrative embodiment of the invention is
`shown in Table 10:
`
`Table lO 2-Layer SM with Beamforming with antenna selection
`
`bob1b2-000 Time t
`'I'ime I
`bab1b2=001
`b0b1bi=0l0 Time z
`b0b1b2::i0 11 Time t
`bol:.1bal-:i. o o
`'l':i.me
`t
`bob1b2=101 Time t
`
`Tx1
`W1S1
`
`W1S1
`0
`
`W1S1
`0
`0
`
`Tx2
`W2Sz
`0
`
`W1S1
`0
`w,s,
`0
`
`Tx3
`0
`w2S
`W2S
`0
`0
`
`W1S 1
`
`Tx4
`0
`0
`
`0
`
`W2S2
`w,.s ..
`W2S2
`
`••
`
`•
`
`C
`
`•
`
`• · - - - . , . , . ' · • . . . . . . . . . ,cm 1""1'\lr,e Datc1~i:i.se on 09/12/2005
`
`ZTE, Exhibit 1008-0019
`
`

`

`22-2004 16:31
`17140RO
`
`From•S&B/F&Co
`
`+613
`
`T•l58
`
`P.022/054
`
`F-087
`
`18
`
`In ehis case, the sub-MIMO channel selection is
`based on the sub-MIMO channel condition and the antenna
`power allocation for the SM data can be adjusted by the
`feedback information.
`
`5
`
`10
`
`Antenna group index (illustratively 3 bits), and
`proportional weighting vector (illustratively 2 real
`elements (or alternatively complex elements), each ele:ment
`being of 4-bits, 6-bits, or 8-bits) are preferably prc,vided
`as feedback signals. It should be appreciated, howeve!r,
`that weights may be derived from feedback informatj.on and
`need not necessarily be provided in feedback info:rmat:Lon.
`
`Closed loop sub-MIMO selection with beamforming
`
`For a DL 4x2 MIMO system, consider six s1.ib-MIMO
`systems H 1,2 , H 1,3 , H 1,4 , H 2,3 , H'J,", and· H3,4 • Assuming that:
`
`15 Hii, Hikand Hu are the sub-MIMO systems that satisfy
`
`. then by beam-forming with the p:,h. and k th columns of H, and
`setting the weights to
`
`det(Hq)
`w,=-;::=======::::;:::i;====
`lde((H11)j2 +ldet.(H,k)j1 +jdet'(H11}!2
`dct(Hu-)
`~~-;====:::;,==~====-==~
`+!det"(H11:)f1
`ldet"(H11)12
`+!det"(Huf
`det°'(H11)
`~=-;=============-==c=~
`jdet"(Huf +!det(Hlk}j2 +!de1"(H,,)j2
`
`.20
`
`respectively, we have
`
`· - - •
`
`· .... - ... .,... •,.._.,..,.,cw •rna~e Database on 09/12/2005
`
`ZTE, Exhibit 1008-0020
`
`

`

`·22·2004 16:31
`171401<.U
`
`From•S&B/F&Co
`
`+613
`
`T·l58
`
`P.023/054
`
`F-087
`
`19
`
`Table ll is another illustrative example.
`
`Table 11 2•Layer SM with antenna selection and Beamforming
`
`bob:i.b:i=000 Time t
`bob1b2=001 Time t
`bob;i.b2::;0l0 Time l
`bob1b2=0ll Time I
`bob1b2=l00 Time I
`bob;i.b2;l0l Time t
`
`Tx1
`St
`
`S1
`s,
`
`W3.S2
`
`W3.S2
`
`W3S2
`
`h2
`W1S2
`
`W2S1
`
`W1S1
`
`Si
`
`S1
`
`W2S1
`
`Tx3
`
`W2S1
`
`W1S2
`
`W2S2
`
`WiS2
`
`W2S1
`
`S1
`
`'I
`(4
`
`'JS2
`l1
`,.,
`'3S2
`
`'\1
`'3S2
`
`W2S1
`} v1s2
`l \1132
`
`,_ - - l
`
`,-~ _ ___,
`
`5
`
`Antenna group index and proportional wei•Jhting
`vector or information from which weights may be derived are
`preferably provided as feedback information.
`
`Single stream transmit diversity (Single-STTD) for~ngle
`user
`
`10
`
`For a single data steam, transmit diversity is
`"proportionally weighted" STTD. This is a middle approach
`between conventional STTD and antenna switching. OnE!
`advantage of this s·cheme is to safeguard against pos~dble
`feedback error, feedback delay, .and possible channel change
`.
`.
`15 between feedback updates for the antenna selection. Channel
`matrix condition (CMC} does not affect STTD when <>rthogonal
`codes are used. For quasi-orthogonal codes, CMC does affect
`signal quality.
`In the case of. single stream traj1smit
`diversity, we also have.two options: beam-forming and
`20 antenna selection. Similar comments can be made ~sin the
`V~BLAST case. The only ~ifference is that in this single
`stream case, water-filling is pre!erably not appl~ed.
`xn
`
`'
`
`,. · .,...,., h.,~. n"'"""'"'~fl on 09/12/2005
`
`ZTE, Exhibit 1008-0021
`
`

`

`1-2M004 16:31
`l7140RO
`
`From-S&B/F&Co
`
`+613
`
`T-158 P.024/054
`
`F-087
`
`20
`
`addition, only one transmit antenna is pre~erably selected
`ins_tead of a group af antennas.
`
`For an SSTD system wit:h four transmit antennas, a
`hybrid proportionally weighted STTD approach can be, uE;ed. In
`5 one embodiment, the two antennas with the s-crongest, cc)mbined
`SNR. are selected, and proportional weighting on 'thE:se two
`selected antennas is then applied.· The advantages of this
`scheme include: diversity and SNR gain due to antenna
`selection, increased robustness provided by proporcional
`10 weighting, and the employment of efficient Alamoutl codes.
`An example of SSTD with antenna selection and proportional
`weighting is given in Table 12, where antennas 2 and 3 are
`selected