`
`Document made
`
`available under
`
`the
`
`Patent Cooperation Treaty (PCT)
`
`International application number: PCT/SE2010/050368
`
`International filing date:
`
`01 April 2010 (01.04.2010)
`
`Document type:
`
`Certified copy of priority document
`
`Document details:
`
`Country/Office: US
`Number:
`61/250,962
`
`Filing date:
`
`13 October 2009 (13.10.2009)
`
`Date of receipt at the International Bureau;
`
`23 April 2010 (23.04.2010)
`
`Remark:
`
`Priority document submitted or transmitted to the International Bureau in
`compliance with Rule 17.1(a) or (b)
`
`
`
`World Intellectual Property Organization (WIPO) - Geneva, Switzerland
`Organisation Mondiale de la Propriété Intellectuelle (OMPI) - Geneve7 Suisse
`
`Samsung Exhibit 1005, Page 1
`
`

`

`
`
`
`
`
`
`
`
`,‘*1‘»;cw»?{-
`
`PA 7233184
`
`
`
`
`
`
`
`" WEN}.
`m mmmn IH
`
`UNITED STATES DEPARTMENT OF COMMERCE
`
`United States Patent and Trademark Office
`
`April 02, 2010
`
`THIS IS TO CERTIFY THAT ANNEXED HERETO IS A TRUE COPY FROM
`
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`
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`
`APPLICATION THAT MET THE REQUIREMENTS TO BE GRANTED A
`FILING DATE UNDER 35 USC 1 11.
`
`APPLICATION NUMBER: 61/250,962
`
`FILING DATE: October 13, 2009
`
`THE COUNTRY CODE AND NUMBER OF YOUR PRIORITY
`
`APPLICATION, TO BE USED FOR FILING ABROAD UNDER THE PARIS
`
`CONVENTION, IS US61/250,962
`
`By Authority of the
`
`Under Secretary of Commerce for Intellectual Property
`and Director of the United States Patent and Trademark Office
`
`(M
`
`T. LAWRENCE
`
`Certifying Officer
`
`
`
`
`
`
`
` L.amuaammmmmmmznammmamsmuuuasu
`
`
`
`
`Samsung Exhibit 1005, Page 2
`
`

`

`
`
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`
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`
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`
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`
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`
`
` Title of Invention:
`Method and Arrangement in a Telecommunication System
`
`First Named Inventor/Applicant Name:
`
`Robert Baldemair
`
`
`
`
`Filer Authorized By:
`
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`
`Receipt Date:
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`
`Samsung Exhibit 1005, Page 3
`
`

`

`P30197-
`US1_2009-10-13_09-3408_Pro
`isiona|_Application__As_Filed.
`pdf
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`493589
`
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`Samsung Exhibit 1005, Page 4
`
`

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` Copy provided by USPTO from the IFW Image Database on 04/01/2010
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`Samsung Exhibit 1005, Page 5
`
`

`

`
`
`PROVISIONAL APPLICATION COVER SHEET
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`SIGNATURE %{ é .
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`TYPED or pamreo NAME Sidney L. Weatherford
`
`TELEPHONE 972-583-8656
`
`Date Octgber 13, 2009
`
`REGISTRATION NO. 45,602
`(if appropriate)
`Docket Number: P30197-US1
`
`Copy provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 6
`
`

`

`
`
`Method and Arrangement in a Telecommunication System
`
`FIELD OF THE INVENTION
`
`The present invention relates to a method and arrangement in
`
`a
`
`telecommunication system,
`
`in particular
`
`to methods
`
`and
`
`arrangements for transmission of TPC commands
`communication network.
`
`in a wireless
`
`BACKGROUND
`
`The Long-Term Evolution of the UTRAN, also denoted LTE, uses
`
`OFDM in the downlink and DPT—spread OFDM in the uplink. The
`
`basic LTE downlink physical resource can thus be seen as a
`
`time-frequency grid where each resource element corresponds
`
`to one OFDM subcarrier during one OFDM symbol
`
`interval.
`
`In
`
`the time domain,
`
`LTE downlink transmissions are organized
`
`into radio frames of 10 ms, each radio frame consisting of
`
`ten equally—sized
`
`subframes of
`
`length Tamfiwm =
`
`1 ms.
`
`Furthermore,
`
`the resource allocation in LTE is typically
`
`described in terms of
`
`resource blocks, where
`
`a
`
`resource
`
`block corresponds to one slot
`
`(0.5 ms)
`
`in the time domain
`
`and
`
`12
`
`contiguous
`
`subcarriers
`
`in the
`
`frequency domain.
`
`Resource blocks
`
`are
`
`numbered
`
`in the
`
`frequency domain,
`
`starting with 0 from one end of the system bandwidth.
`
`Downlink transmissions are dynamically scheduled,
`
`i.e.
`
`in
`
`each subframe the base station transmits control information
`
`about
`
`terminals to which data is transmitted and on which
`
`resource blocks
`
`the data is transmitted in the current
`
`downlink
`
`subframe. This
`
`control
`
`signaling is
`
`typically
`
`transmitted in the first 1, 2,
`subframe.
`
`3 or 4 OFDM symbols in each
`
`
`
`Copy provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 7
`
`

`

`
`
`receiving
`the terminal, after
`hybrid—ARQ, where
`downlink data in a subframe, attempts to decode said data
`
`attempt,
`decoding
`erroneous data.
`
`the
`
`base
`
`station can
`
`retransmit
`
`the
`
`signaling from the terminal
`Uplink control
`station consists of
`
`to the base
`
`the decoding was
`and reports to the base station whether
`successful
`(ACK) or not
`(NAK).
`In case of an unsuccessful
`
` LTE uses
`
`-
`
`0
`
`0
`
`acknowledgements
`hybrid—ARQ
`received downlink data;
`
`for
`
`the
`to
`related
`reports
`terminal
`downlink channel conditions, used as
`assistance
`for
`the
`downlink
`scheduling;
`
`scheduling requests,
`a mobile
`terminal
`resources
`for
`transmissions.
`
`indicating that
`needs
`uplink
`uplink
`data
`
`If
`
`the mobile
`
`terminal has not been assigned an uplink
`
`resource
`
`for
`
`data
`
`transmission,
`
`the
`
`L1/L2
`
`control
`
`information
`
`(e.g.
`
`channel—status
`
`reports,
`
`hybrid—ARQ
`
`acknowledgments, and scheduling requests)
`
`is transmitted in
`
`uplink resources (resource blocks) specifically assigned for
`
`uplink L1/L2 control
`
`on Physical Uplink Control CHannel
`
`(PUCCH). These resources are located at
`
`the edges of
`
`the
`
`total available cell bandwidth. Each such resource consists
`
`of 12 “subcarriers” (one resource block) within each of the
`
`two
`
`slots of
`
`an uplink subframe.
`
`In order
`
`to provide
`
`frequency diversity,
`
`these frequency resources are frequency
`
`hopping on the slot boundary,
`
`i.e. one “resource” consists
`
`of 12 subcarriers at
`
`the upper part of the spectrum within
`
`the first slot of a subframe and an equally sized resource
`
`at the lower part of the spectrum during the second slot of
`
`the subframe or vice versa. If more resources are needed for
`
`copy provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 8
`
`

`

`
`
`in case of very
`the uplink Ll/L2 control signaling, e.g.
`large overall
`transmission bandwidth
`supporting a
`large
`number of users, additional resources blocks can be assigned
`next to the previously assigned resource blocks.
`
`The reasons for locating the PUCCH resources at the edges of
`the overall available spectrum are two-fold:
`
`0 Together with the frequency hopping described above,
`the
`frequency diversity experienced by the control
`signaling is maximized;
`
`PUCCH at other
`the
`for
`0 Assigning uplink resources
`positions within the spectrum,
`i.e. not at
`the edges,
`would have fragmented the uplink spectrum» making it
`impossible to assign very wide transmission bandwidths
`to single mobile terminal and still retain the single—
`carrier property of the uplink transmission.
`
`The bandwidth of one resource block during one subframe is
`too large for
`the control
`signaling needs of
`a single
`terminal. Therefore,
`to efficiently exploit
`the resources
`
`can
`signaling, multiple terminals
`for control
`set aside
`share the same resource block. This is done by assigning the
`different
`terminals different orthogonal phase rotations of
`a cell-specific length-12 frequency-domain sequence and/or
`different
`orthogonal
`time—domain
`covers
`covering
`the
`subframes within a slot or subframe.
`
`In
`The LTE Rel-8 standard supports bandwidths up to 20 MHz.
`order
`to meet
`the
`upcoming
`INT-Advanced
`requirements
`bandwidths larger than 20 MHz need to be supported. However,
`one
`important
`requirement
`is
`to
`assure
`backward
`compatibility with LTE Rel-8. This
`should also include
`
`Samsung Exhibit 1005, Page 9
`
`

`

`
`
`LTE~
`an
`that
`imply
`spectrum compatibility. That would
`should appear as
`a
`Advanced carrier, wider
`than 20 MHz,
`number of LTE carriers to an LTE Rel-8 terminal. Each su¢h
`carrier can be referred to as a component carrier (CC).
`In
`particular
`for early LTE-Advanced deployments
`it
`can be
`expected that
`there will be
`a
`smaller
`number of
`LTE—
`Advanced—capable
`terminals
`compared
`to many
`LTE
`legacy
`terminals. Therefore, it is necesaary to assure an efficient
`use of a wide carrier also for legacy terminals,
`i.e.
`that
`it is possible to implement carriers where legacy terminals
`can be scheduled in all parts of the wideband LTE-Advanced
`carrier. The straightforward way to obtain this would be by
`means of carrier aggregation. Carrier aggregation implies
`that an LTE-Advanced terminal can receive multiple CC, where
`the CC have, or at
`least the possibility to have,
`the same
`structure as a Rel-8 carrier.
`
`for uplink and downlink. A
`individual CC may be different
`symmetric configuration refers to the case where the number
`of
`CC
`in downlink and uplink is
`the
`same whereas
`an
`
`asymmetric configuration refers to the case that the number
`of CC is different. It is important
`to note that the number
`of CC configured in a cell may be different from the number
`of CC seen by a terminal: A terminal may for example support
`more downlink CC than uplink CC,
`even.
`though the cell
`is
`configured with the same number of uplink and downlink CC.
`
`the Physical Downlink
`on
`is done
`the CC
`Scheduling of
`(PDCCH) via downlink assignments. Control
`Control Channel
`information on the PDCCH is formatted as a Downlink Control
`
`downlink
`for
`DCI messages
`(DCI) message.
`InfOrmation
`assignments contain among others resource block assignment,
`modulation and coding scheme related parameters, hybrid—ARQ
`redundancy version, etc.
`In addition to those parameters
`
`Copy provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 10
`
`

`

`transmission most DCI
`relate to the actual downlink.
`formats
`for downlink. assignments also contain. a bit field
`for Transmit waer Control
`(TPC)
`commands.
`These
`TPC
`commands
`are used to control
`the uplink power control
`behavior of the corresponding PUCCH that is used to transmit
`the hybrid-ARQ feedback.
`
`asymmetric
`and
`symmetric
`both
`UE perspective,
`From a
`uplink/downlink CC configura:ions are supported. For some of
`the configurations,
`one may consider
`the possibility to
`transmit the uplink control
`information on multiple PUCCH or
`multiple uplink CC. However, this option is likely to result
`in higher 08 power consumption and a dependency on specific
`UE capabilities.
`It may' also create implementation issues
`due
`to
`inter—modulation
`products,
`and would
`lead
`to
`generally higher complexity for implementation and testing.
`
`have
`no
`Therefore,
`the
`transmission
`of
`PUCCH
`should
`i.e. as
`dependency on the uplink/downlink CC configuration,
`a design principle all uplink control
`information for a 03
`should be semi-statically mapped onto one specific uplink CC
`(“anchor carrier”).
`
` that
`
`SUMMARY
`
`In case a terminal is scheduled on multiple downlink CC each
`
`a downlink assignment contains
`that contains
`DCI message
`for
`the
`corresponding
`PUCCH
`also
`a
`TPC
`command
`transmissions. However, all TPC commands refer to the same
`uplink CC (all uplink control
`information is transmitted on
`a single uplink CC). Thus,
`in the best case transmitting TPC
`within multiple
`DCI messages
`results
`in
`unnecessary
`overhead.
`In the worst case the TPC commands are different
`leading to unpredictable UE behavior.
`
`Copy provided by USPTO irom the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 11
`
`

`

`this would
`TPC bits in all but one DCI messages. However,
`increase the number of blind decodings that the terminal has
`
`to perform since a
`
`terminal
`
`is
`
`supposed to decode DCI
`
`messages with certain sizes. Removing the TPC bits in some
`
`DCI message changes their size thus adding blind decodings.
`
`Therefore, according to the basic idea of embodiments of the
`
`present invention, TPC bit fields are transmitted in all DCI
`
`messages containing downlink assignments, whereby only the
`TPC bits transmitted within one PDCCH contains a true TPC
`
`commands. The other TPC bit fields are used to signal
`other relevant information.
`
`some
`
`By this means overhead (the total number of transmitted bits
`
`is kept constant while
`
`increasing the payload size)
`
`is
`
`reduced.
`
`Furthermore
`
`the
`
`situation
`
`is
`
`avoided where
`
`contradicting TPC commands
`
`can be
`
`sent
`
`to the
`
`terminal
`
`leading to unpredictable terminal behavior. The
`
`invention
`
`also allows packing larger resource allocations/larger DCI
`formats
`into
`the
`payload
`size
`of
`smaller
`resource
`
`allocations/DCI formats thus reducing the DCI format sizes a
`
`terminal
`decodings.
`
`has
`
`to
`
`nwnitor
`
`resulting
`
`in
`
`reduced
`
`blind
`
` The straight forward solution would be to just to remove the
`
`if it has been determined 11 that multiple
`-assigning 12,
`downlink component carriers (CC) are simultaneously assigned
`
`Briefly,
`
`the present
`
`invention relates
`
`to a method and
`
`arrangement
`
`in a network node, whereof
`
`embodiments are
`
`described
`following:
`
`by means
`
`of
`
`non—exclusive
`
`examples
`
`in
`
`the
`
`A first aspect of the present
`
`invention relates to a method
`
`performed in a network unit of a telecommunication network
`
`comprising the steps of
`
`Copy provided by USPTO from the lFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 12
`
`

`

`a TPC command to only one of
`Control Messages
`(DCI) messages
`conveying
`assignments;
`
`the Downlink
`the
`downlink
`
`-applying
`
`14,
`
`where
`
`appropriate,
`
`the
`
`bit
`
`fields
`
`corresponding to the TPC command
`convey other relevant information.
`
`in the other
`
`PDCCH to
`
`According to further embodiments of the present invention as
`described above, said other parameters are
`
`-indicators to PUCCH or PUSCH resources;
`
`—extensions of the resource assignment;
`
`-extension to other parameters that do not exist/are smaller
`
`in the DCI
`command.
`
`format used on that PDCCH conveying the true TPC
`
` to a terminal,
`
`According to further embodiments of the present invention as
`
`described above,
`
`the PDCCH that carries the true TPC command
`
`—is explicitly configured 13a;
`
`-is implicitly determined 13b, e.g. based on one or more of
`
`index,
`component carrier (CC)
`configured on the different CC.
`
`system bandwidth, DCI
`
`formats
`
`According
`invention,
`
`present
`the
`of
`embodiment
`another
`yet
`to
`the unused TPC bits are used to accommodate the
`
`carrier
`
`indicator
`
`for
`
`the PDCCH that do not control
`
`the
`
`component carrier on which they are sent.
`
`A second aspect of
`
`the present
`
`invention relates
`
`to a
`
`network unit 20 comprising a first circuit 21 adapted for
`
`been determined that multiple
`has
`if
`assigning,
`-
`carriers
`(CC)
`23
`are
`simultaneously
`downlink
`component
`assigned to a terminal 30, a TPC command to only one 241 of
`
`it
`
`the Downlink Control Messages
`downlink assignments;
`
`— applying, where appropriate,
`
`(DCI) messages conveying the
`
`the bit fields corresponding
`
`to the TPC command in the other DCI messages 242 to convey
`other relevant information.
`
`Copy prOVided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 13
`
`

`

`described above, said circuit 21 is adapted to select
`said other parameters
`
`for
`
`-indicators to PUCCH or PUSCH resources;
`
`—extensions of the resource assignment;
`
`According to further embodiments of the present invention as
`
`described above, a second circuit 22 connected to said first
`
`circuit 21 is adapted
`
`-to explicitly configure the PDCCH that carries the true TPC
`command 241;
`
`~to implicitly determine the PDCCH that carries the true TPC
`
`command 241, e.g. based on one or more of component carrier
`
`system bandwidth, DCI formats configured on the
`index,
`(CC)
`different CC.
`
`According
`invention,
`
`another
`yet
`to
`said first circuit
`
`present
`the
`of
`embodiment
`21
`is adapted to use the
`
`unused TPC bits to accommodate the carrier indicator for the
`
`PDCCH that do not control
`they are sent.
`
`the component carrier on which
`
`Other
`
`objects,
`
`advantages
`
`and
`
`novel
`
`features
`
`of
`
`the
`
`invention will become apparent
`
`frmn the following detailed
`
`description of the invention when considered in conjunction
`with the accompanying drawings.
`
`—extension to other parameters that do not exist/are smaller
`in the DCI
`format used on that PDCCH conveying the true TPC
`command.
`
` According to further embodiments of the present invention as
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`Figure 1
`
`illustrates an example embodiment of
`
`the method
`
`according to the present invention.
`
`Copy Provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 14
`
`

`

`illustrates an example embodiment of
`
`a network
`
`unit comprising a circuit adapted for performing the method
`according to the present invention.
`
`DETAILED DESCRIPTION
`
` Figure 2
`
`In case
`
`the
`
`terminal
`
`receives
`
`downlink
`
`assignments
`
`on
`
`multiple CC,
`
`the TPC bit field transmitted on one PDCCH is
`
`used to transmit a true TPC command. The UE needs to know in
`
`which of
`
`the PDCCH the TPC bit field is the TPC command.
`
`some
`alternatively,
`configured or,
`be
`can either
`This
`implicit
`rule is used, e.g.
`the PDCCH addressing that CC
`
`with the lowest CC index contains true TPC command. Another
`
`rule would be
`
`to base the PDCCH on
`
`the downlink system
`
`bandwidth of the CC that is addressed by the PDCCH, e.g.
`
`the
`
`PDCCH that points to the CC with the lowest system bandwidth
`
`contains the true TPC command. If multiple downlink CC have
`
`the same bandwidth a combination of multiple implicit rules
`can be used.
`
`The TPC field in the other PDCCH is used to convey other
`
`information. One possibility is to use these bits to signal
`
`the PUCCH or PUSCH resources that should be used to convey
`
`the hybrid-ARQ bits of
`
`channel
`
`transmissions.
`
`the corresponding downlink shared
`
`It
`
`is even possible to combine the
`
`bits from all other PDCCH and use this wider bit field to
`
`address one large PUCCH or PUSCH resource out of a somewhat
`
`larger
`
`resource pool.
`
`It
`
`is
`
`also possible
`
`to combine
`
`implicit
`
`and explicit
`
`PUCCH or
`
`PUSCH resource signaling,
`
`e.g.
`
`some parts of the PUCCH or PUSCH resource(s) addresses
`
`are explicitly signaled and the remaining part is signaled
`via the TPC bit fields.
`
`Another' possibility is to use the free TPC bit
`
`fields to
`
`extend resource block assignments. This is especially useful
`
`Copy provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 15
`
`

`

`if the true TPC command is sent on that PDCCH that addresses
`
`the CC with the lowest downlink system bandwidth. Without
`
`any restrictions on which downlink CC can be scheduled from
`
`which downlink CC the number of blind decoding can become
`
`very large since the terminal has to monitor possible PDCCH
`
`candidates for each downlink CC on each downlink CC. If the
`
`CC have different system bandwidths
`
`the DCI messages have
`
`different sizes resulting in an increased number of blind
`
`detections. Using the free TPC bit
`
`fields on the PDCCH
`
`addressing the wider
`
`CC
`
`to extend their
`
`resource block
`
`assignment
`
`fields
`
`(increasing relative to the
`
`smallest
`
`system bandwidth among all scheduled or configured CC) makes
`
`it possible to address the resources on the wider CC without
`
`increasing the DCI message size (relative to the DCI format
`
`that
`
`contains
`
`the
`
`true
`
`TPC
`
`command)
`
`and
`
`thus without
`
`increasing the number of blind decodings.
`
` 10
`
`A similar situation occurs
`
`if different downlink CC are
`
`requiring DCI messages
`configured with transmission modes
`with different sizes. If the true TPC command is sent on the
`
`PDCCH addressing the downlink CC that requires the smallest
`
`DCI
`
`formats the TPC bit
`
`fields on the other PDCCH can be
`
`used to convey the information of larger DCI messages within
`
`the payload size of the smaller DCI message.
`
`In this way the
`
`terminal does not have to monitor more DCI payload sizes
`
`thus not increasing the number of blind decodings.
`
`A further possibility is to use the free TPC bits on each
`
`carrier to indicate the component carrier that is addressed
`
`by the PDCCH,
`
`in case it is not
`
`the PDCCH associated with
`
`the DI. CC that carries multiple PDCCH,
`
`in case a carrier
`
`indicator is used. As an example, assuming up to 5 component
`
`carriers being configured, and a TPC bit field of size 2 per
`
`the PDCCH associated with the DL CC carrying multiple
`PDCCH,
`PDCCH for other CC would include the true TPC command. The
`
`Copy provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 16
`
`

`

`
`
`11
`
`other four
`PDCCH would include a 2 bit carrier indicator,
`indicating which of
`the four CC that
`is controlled by the
`respective PDCCI-I.
`
`Copy provided by USPTO from the IFW Image Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 17
`
`

`

`
`
`P30197—US1
`
`1
`
`
`
`
`
`determining that multiple downlink
`component carriers (CC) are
`simultaneously assigned to a
`terminal
`
`
`
`12 /‘ only one of the Downlink Control
`Messages (DCI) messages
`conveying the downlink
`
`
`
`
`
` assigning a TPC command to
`assignments
`
`
`
`Explicitly configure the
`Implicitly determine the
`PDCCH that carries the
`PDCCH that carries the
`
`
`true TPC command
`true TPC command
`
`
`
`
`
`
`applying, where appropriate, the bit fields
`corresponding to the TPC command in the
`
`other PDCCH to convey other relevant
`
`
`information.
`
`
`
`14
`
`Fig. 1
`
`Conv nrovided bv USPTO from the IFW Imaae Database on 04/01/2010
`
`
`
`Samsung Exhibit 1005, Page 18
`
`

`

`20
`
`23
`
` P301 97-US1
`
`2/2
`
`21
`
`‘241
`
`NI.2
`
`242
`
`Fig. 2
`
`30
`
`Copy provided hv USPTO firom the lFW lmaue Database on 04/01/2010
`
`Samsung Exhibit 1005, Page 19
`
`