Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19303 Filed 06/20/24 Page 1 of 26
`
`Exhibit G
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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19304 Filed 06/20/24 Page 2 of 26
`
`NEO-AUTO_0115676
`
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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19305 Filed 06/20/24 Page 3 of 26
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`NEO-AUTO_0115677
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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19306 Filed 06/20/24 Page 4 of 26
`
`NEO-AUTO_0115678
`
`Methods and Apparatus for Multi-Carrier,
`Multi-Cell Wireless Communication Networks
`
`1 Background of the Invention
`In multi-carrier wireless communications, many essential system functions such as frequency
`synchronization and channel estimation are carried out with the facilitation of network
`information provided by a portion of total subcarriers such as pilot subcarriers (Figure 1). The
`level of the fidelity of received version of these subcarriers directly dictates how well these
`functions can be achieved, which in turn affects the performance of the entire network in terms
`ofefficiency and capacity. In a wireless network, there are a number of base stations, each of
`which provides coverage to its designated area, normally called a cell. If a cell is divided in to
`sectors, from system engineering point of view each sector can be considered as a cell. In this
`context, the terms “cell” and “sector” are interchangeable. The network information can be
`categorized into two types: the cell-specific information that is unique to a particular cell and the
`common information that is common to the entire network or to a portion of the entire networks
`(e.g., a group of cells). In a multi-cell environment, for example, the base station transmitter of
`each cell transmits its own pilot subcarriers, in addition to data carriers, for the use by the
`receivers within the cell. In such an environment, carrying out the pilot-dependent functions
`becomes a challenging task in that, in addition to the degradation due to multipath propagation
`channel, signals originated from the base stations at different cells interfere with each other. One
`approach to deal with the interference problem is that each cell will transmit a particular pattern
`ofpilot subcarriers based ona certain type ofcell-dependent random process, which, to a certain
`degree, is able to mitigate impact of the mutual interference between the pilot subcarriers from
`adjacent cells [1]. However, in this approach or alike, there is no careful and systematic
`consideration of the unique requirements for pilot subcarriers of different functionalities. While
`it is necessary to manage the mutual interference between those subcarriers that are used for the
`functionalities unique to individual cells, it is desirable and constructive to design those
`subcarriers that are used to carry common information in such a way that signals from other cells
`are treated as contributing factors rather than interfering factor.
`
`2 Summary of the Invention
`In this invention, a design process is devised to divide pilot subcarriers into two different groups
`according to their functionalities and hence their distinct requirements. Each group of pilot
`subcarriers will be designed to have such a transmit format that the essential system functions
`such as frequency synchronization and channel estimation can be performed in the optimal way.
`The first group is called cell-specific pilot subcarriers (Figure 5), which will be used for the
`receiver to extract information unique to each individual cell. For example, these cell-specific
`pilot subcarriers can be used in the channel estimation process where it is necessary for a
`particular receiver to be able to differentiate the pilot subcarriers that are intended for its use
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES. INC.
`Confidential and Proprietary
`
`1
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19307 Filed 06/20/24 Page 5 of 26
`
`NEO-AUTO_0115679
`
`from those that are from other cells. For these pilot subcarriers, counter-interference methods are
`necessary. The second group is termed the common pilots subcarriers (Figure 5), which are
`designed to possess a set of characteristics common to all the base stations of the system. Thus,
`every receiver within the system is able to exploit these common pilot subcarriers to perform the
`necessary functions without interference problem. For instance, these common pilot subcarriers
`can be used in the frequency synchronization process, where it is not necessary to discriminate
`pilot subcarriers from one cell to others but it is desirable for the receiver to combine coherently
`the energy of common pilot subcarriers with the same carrier index from different cells so as to
`achieve relatively accurate frequency estimation.
`This invention provides methods to define the transmission formats of the cell-specific and
`common pilot subcarriers that enable a receiver to perform different essential system functions.
`In particular, a set of design criteria are provided for pilot subcarriers.
`This invention further provides the apparatus or means to implement the aforesaid design
`process and methods. In particular, signal reception can be improved by manipulating phase
`values of the pilot subcarriers and by the use of power control The methods and process provided
`by this invention can also be extended to cases, such as the one where multiple antennas are used
`within an individual sector and where some subcarriers are used to carry common
`network/system information. Base stations can be synchronized in frequency and time by sharing
`a common frequency oscillator or a common frequency reference signal, such as the one
`generated from the signals provided by the Global Positioning System (GPS).
`
`3 Brief Description of the Drawings
`Figure 1: A basic multi-carrier wireless communication system consists of a transmitter and a
`receiver. A functional block, called Pilot generation and insertion, at the transmitter
`generates the necessary pilot subcarriers and inserts them into the predetermined
`locations in frequency. These pilot subcarriers are used by the receiver to carry out
`some essential functions.
`Figure 2: The basic structure of a multi-carrier signal in the frequency domain is made up of
`subcarriers. Data subcarriers can be grouped into subchannels in a particular way. The
`pilot subcarriers are also distributed over the entire channel in a particular way.
`Figure 3: The radio resource is divided into small units in both the frequency and time domains:
`subchannels and time slots. The basic structure of a multi-carrier signal in the time
`domain is made up of time slots.
`Figure 4: A cellular wireless network is comprised of a plurality of cells, in each of which the
`coverage is provided bya base station (BS). Within each coverage area, there are
`distributed mobile stations. A base station is connected to the backbone of the network
`via a dedicated link and also provides radio links to the mobile stations within its
`coverage.
`Figure 5: The pilot subcarriers are divided into two groups: cell-specific pilot subcarriers and
`common pilot subcarriers. The cell-specific pilot subcarriers for different cells are not
`necessarily aligned in frequency. They can be used for the receiver to extract the cell-
`specific information. The common pilot subcarriers for different cells are normally
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES, INC.
`Confidential and Proprietary
`
`2
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19308 Filed 06/20/24 Page 6 of 26
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`NEO-AUTO_0115680
`
`aligned in frequency. They are designed to possess a set of attributes common to all the
`base stations within the network. Thus, every receiver within the system is able to
`exploit these common pilot subcarriers without interference problem. The power of the
`pilot subcarriers can be varied through a particular power control scheme and based on
`a specific application.
`Figure 6: An embodiment of implementation of the pilot-generation-and-insertion functional
`block in Figure 1 is shown to have a microprocessor for generating the pilot subcarriers
`and for inserting them into the frequency sequence contained in the electronic memory.
`Figure 7: The common pilot subcarriers are generated by the microprocessor in Figure 6 to
`realize phase diversity.
`Figure 8: An embodiment of the implementation of delay diversity is shown to create the
`equivalent effect of phase diversity by adding a random delay time duration, either in
`baseband or RF, to the time-domain signals.
`Figure 9: Two examples are shown for extension to multiple antenna applications. (a) In the case
`where there is only one transmission branch that are connected to an array of antennas
`through a transformer, the implementation is exactly the same as in the case of single
`antenna. (b) In the case where there are a plurality of transmission branches that are
`connected to different antennas, the cell-specific pilot subcarriers for transmission
`branches are usually defined by the multiple-antenna scheme whereas the common
`pilot subcarriers for each transmit branch are generated to meet the criteria specified in
`this invention.
`Figure 10: An embodiment of implementation of the synchronization in frequency and time of
`two collocated base stations via sharing a common frequency oscillator. Mobile
`stations covered by these two base stations do not experience interference when .
`receiving the common pilot subcarriers.
`Figure 11: An embodiment of implementation of the synchronization in frequency and time base
`stations at different locations via sharing a common frequency reference signal
`generated from the GPS signals. Mobile stations covered by these two base stations
`do not experience interference when receiving the common pilot subcarriers.
`Figure 12: In one embodiment ofimplementation,
`thewireless network consists of two groups of
`cells (or sectors) and base stations in each group share their own set of common pilot
`In this scenario, only those base stations within their group are required
`subcarriers.
`to synchronize to a common reference. While the common pilot subcarriers within
`each group are designed to meet the criteria defined in this invention, a particular
`counter-interference process (e.g., randomization in frequency) will be applied to
`different sets of common pilot subcarriers.
`Figure 13: All the base stations within the network transmit, along with a common pilot
`subcarrier, a data subcarrier carrying the data information common to all the cells in
`network. A receiver within the network can determine the composite channel
`coefficient based the common pilot subcarrier and apply it to the data subcarrier to
`compensate for the channel effect, thereby recovering the data information.
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES. INC.
`Confidential and Proprietary
`3
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19309 Filed 06/20/24 Page 7 of 26
`
`NEO-AUTO_0115681
`
`4 Detailed Description
`4.1 Multi-Carrier Communication System
`In a multi-carrier communication system such as multi-carrier code division multiple access
`(MC-CDMA) and orthogonal frequency division multiple access (OFDMA), information data
`are multiplexed on subcarriers that are mutually orthogonal in the frequency domain. In effect, a
`frequency selective channel is broken into a number of parallel but small segments in frequency
`that can be treated as flat fading channels and hence can be easily dealt with using simple one-
`tap equalizers. The (de)modulator can be carried out using the fast Fourier transform (FFT).
`The physical media resource (e.g., radio or cable) in a multi-carrier communication system can
`be divided in both the frequency and time domains. This canonical division provides a high
`flexibility and fine granularity for resource sharing.
`The basic structure of a multi-carrier signal in the frequency domain is made up of subcarriers.
`Withina particular spectral band or channel, there are a fixed number of subcarriers. There are
`three types of subcarriers:
`1. Data subcarriers, which carries information data;
`2. Pilot subcarriers, whose phases and amplitudes are predetermined and made known to all
`receivers and which are used for assisting system functions such as estimation of system
`parameters; and
`3. Silent subcarriers, which have no energy and are used for guard bands and DC carrier.
`The data subcarriers can be arranged into groups called subchannels to support both scalability
`and multiple access. The subcarriers forming one subchannel are not necessarily adjacent to each
`other. The concept is illustrated in Figure 2.
`The basic structure of a multi-carrier signal in the time domain is made up of time slots to
`support multiple-access. The resource division in both the frequency and time domains is
`depicted in Figure 3.
`In multi-carrier communication system, a generic transmitter may consist of the following
`functional blocks (Figure 1):
`1. Encoding and modulation
`2. Pilot generation and insertion
`Inverse fast Fourier transform (IFFT)
`3.
`4. Transmission
`A generic receiver may consist of the following functional blacks:
`1. Reception
`2. Frame synchronization
`3. Frequency and timing compensation
`4 . Fast Fourier transform (FFT)
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES, INC.
`Confidential and Proprietary
`
`4
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19310 Filed 06/20/24 Page 8 of 26
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`NEO-AUTO_0115682
`
`5. Frequency, timing, and channel estimation
`6. Channel compensation
`7. Decoding
`
`4.2 Cellular Wireless Networks
`In a cellular wireless network, the geographical region to be serviced by the network is normally
`divided into smaller areas called cells. In each cell the coverage is provided bya base station.
`Thus, this type of structure is normally referred to as the cellular structure (Figure 4). Within
`each coverage area, there are located mobile stations to be used as an interface between the users
`and the network. A base station is connected to the backbone of the network, usually by a
`dedicated link. A base station also serves as a focal point to distribute information to and collect
`information from its mobile stations by radio signals.
`In a wireless network, there are a number of base stations, each of which provides coverage to its
`designated area, normally called a cell. If a cell is divided in to sectors, from system engineering
`point of view each sector can be considered asa cell. In this context, the terms “cell” and
`“sector” are interchangeable.
`In the consideration of a M-cell wireless network, which can be one-way or two-way either time
`division duplex or frequency division duplex, the transmitters at all the cells are synchronized
`via a particular means and are transmitting simultaneously. In a particular cell, say the
`cell, a
`receiver receives a signal at a particular subcarrier, say the n" subcarrier at time t,, which can be
`described as
`
`.
`
`yer) 4
`
`M
`
`m=)
`
`Gin (ty Je/Pamir)
`
`(1)
`
`denote the signal amplitude and phase, respectively, associated with
`where a,_,(t,) and
`the i" subcarrier from the base station of m" cell.
`
`4.3 Cell-Specific Pilot Subcarriers
`If the i" subcarrier is used as a pilot subcarrier at thep™ cell for the cell-specific purposes, the
`cell-specific information carried by a,
`and 9,,(t,) are of interest to the receiver at the
`cell and other signals described by the second term on the right hand side of (1) are considered to
`be interference, which is an incoherent sum of signals from other cells. In this case, a sufficient
`level of the carrier-to-interference ratio (CIR) is required to obtain the estimates of a,,(t,) and
`with desirable accuracy. There are many ways to boost the CIR. For examples, the
`amplitude of a pilot subcarrier can be set larger than that of a data subcarrier; power control can
`be applied to the pilot subcarriers; and cells adjacent to the p™ cell may avoid using the i”
`subcarrier as pilot subcarrier. All these can be achieved with coordination between cells based on
`a certain process.
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES. INC.
`Confidential and Proprietary
`
`5
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19311 Filed 06/20/24 Page 9 of 26
`
`NEO-AUTO_0115683
`
`4.4 Common Pilot Subcarri
`
`rs
`
`The commonpilot subcarriers for different cells are normally aligned 1
`in the frequency index
`(Figure 5). If the i” subcarrieris used as a pilot subcarrier at thep™ cell for the common
`purposes, it is not necessary to consider the second term on the right hand side of (1) to be
`interference. Instead, this term can be turned into a coherent component of the desirable signal
`by designing the common pilot carriers to meet the criteria specified in this invention, provided
`that base stations at all cells are synchronized in frequency and time.
`In such a case, which cell
`the receiver is located become irrelevant and consequently, the received signal can be rewritten
`
`as
`
`Si(ty) =
`
`M
`
`m=)
`
`im (ter?
`
`The common pilot subcarriers can be used for a number of functionalities, such as frequency
`offset estimation and timing estimation.
`To estimate the frequency, signals at different times are normally involved. In the example of
`two common pilot subcarriers of the same frequency index but at different time, the received
`signal at time ¢,,,, with respect to the signal at time ¢, , is given by
`Si(bya)=OD
`err
`Pim(tear)
`
`M
`
`m=)
`
`where At = t,,, —¢,. If At is much less than the coherence period of the channel and the
`following requirements are met, which are,
`Qi im(t, )= a; m (that )
`
`and
`
`(2)
`
`(3)
`
`(4)
`
`|
`
`Pim (te) = Pim tian)+B,
`are predetermined constants for all values of m, In this case, then
`where c, >0 and
`<
`the frequency can be determined by
`2af,At =argls;(k)s,(k + D}~ B
`From all the frequency estimates {fi}; an offset can be derived based onaparticular criteria.
`For timing estimation, multiple common pilot carriers are normally required. In the example of
`two common pilot subcarriers, the received signal at f,, is given by
`Yay
`
`(5)
`
`(6)
`
`(7)
`
`Salta) =
`
`M
`
`m=)
`
`Jerre
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES, INC.
`Confidential and Proprietary
`
`6
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19312 Filed 06/20/24 Page 10 of 26
`
`NEO-AUTO_0115684
`
`where Af = f, — f, and T, denotes the sampling period. If Af is much less than the coherence
`bandwidth of the channel and the following requirements are met, which are
`Gym (ty)
`Am (ty) =
`
`(8)
`
`and
`
`Pim (t,) = Pim (t,)+
`
`(9)
`
`are predetermined constants for all values of m., then,
`
`< y(t,)
`where c(t,)>0 and
`T, can be determined by
`2adfT, (t,) = args’
`In one embodiment of implementation illustrated in Figure 6, a microprocessor embedded in the
`pilot-generation-and-insertion functional block computes the attributes of the pilot subcarriers
`such as their frequency indices and complex values specified by their requirements, and insert
`them into the frequency sequence contained in the electronic memory, such as a RAM, ready for
`the application of IFFT.
`
`(10)
`
`4.5 Diversity for Common Pilot Subcarriers
`Referring to (2), which is a sum of a number of complex signals. It is possible that these signals
`superimpose together destructively, thereby causing the amplitude of the receiver signal at this
`particular subcarrier to be so small that the signal itself becomes relatively unreliable. To deal
`with this adverse effect, phase diversity can be used. In the example offrequency estimation, a
`can be added to another pilot subcarrier, say the
`random phase 9,
`subcarrier; that is,
`= Pim lg)+Im
`Prin
`
`(11)
`
`and
`
`where
`
`Pim (tia) = Pim Cra) +
`
`(12)
`
`should be set differently for each cell, provided that the following condition is met,
`Pim(te) = Pim(ten)
`forall values of m
`(13)
`
`With the phase diversity, it is expected that the probability that both
`and |s,
`will
`diminish at the same time is relatively small. The embodiment of implementation of phase
`diversity is depicted in Figure 7. It should be noted that time delay will achieve the equivalent
`diversity effect, and another embodiment of implementation is illustrated in Figure 8. A random
`delay time duration is added, either in baseband or RF, to the time-domain signals to create the
`equivalent effect ofphase diversity.
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES. INC.
`Confidential and Proprietary
`
`7
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19313 Filed 06/20/24 Page 11 of 26
`
`NEO-AUTO_0115685
`
`4.6 Power Control for Pilot Subcarriers
`In one embodiment of implementation, power control can be applied to the pilot subcarriers. The
`power of the pilot subcarriers can be adjusted individually or as a subgroup to
`1. meet the needs of their functionalities;
`2. adapt to the operation environments (e.g., propagation channels); and
`3.
`reduce interference between cells or groups of cells.
`In one embodiment of implementation, power control is implemented differently for cell-specific
`pilot subcarriers and common pilot subcarriers. For example, stronger power is applied to
`common pilot subcarriers than to the cell-specific subcarriers.
`
`4.7 Application to Multiple Antennas
`The methods and process provided by this invention can also be implemented in applications
`where multiple antennas are used within an individual sector, provided that the criteria specified
`either by (4) and (5) for frequency estimation or by (8) and (9) for timing estimation are
`satisfied. In Figure 9, there are two examples of such extension to multiple antenna applications.
`In the case where there is only one transmission branch that is connected to an array of antennas
`through a transformer (e.g., a beamforming matrix), the implementation is exactly the same as in
`the case of single antenna. In the case where there are a plurality of transmission branches that
`are connected to different antennas (e.g., in a transmit diversity scheme or a multiple-input
`multiple-output scheme), the cell-specific pilot subcarriers for transmission branches are usually
`defined by the multiple-antenna scheme whereas the common pilot subcarriers for each
`transmission branch are generated to meet the requirements by (4) and (5) for frequency
`estimation or by (8) and (9) for timing estimation.
`
`4.8 Joint-Use of Cell-Specific and Common Pilot Subcarriers
`In one embodiment of implementation, both the cell-specific and common pilot subcarriers can
`be used jointly in the same process based on certain information theoretic criteria, say the
`optimization of the signal-to-noise ratio. For example, in the estimation of a system parameter
`(e.g. frequency), some or all cell-specific subcarriers, if they satisfy a certain criterion, say to
`exceed a CIR threshold, may be selected to be used together with the common pilot subcarriers
`to improve estimation accuracy. Furthermore, the common pilot subcarriers can be used along
`with the cell-specific subcarriers to determine the cell-specific information in some scenarios,
`one of which is the operation at the edge of the network.
`
`4.9 Base Transmitters Synchronization
`One of the requirements is that base stations at all cells are synchronized in frequency and time.
`In one embodiment of implementation, the base station transmitters that are collocated, as in the
`case wherea cell is divided into sectors and the base stations of these sectors are physically
`placed at the same location, are locked to a single frequency oscillator, as shown in Figure 10,
`whereas the base station transmitters that are located at different areas are locked to a common
`reference frequency source, such as the GPS signal as shown in Figure 11.
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES. INC.
`Confidential and Proprietary
`
`8
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19314 Filed 06/20/24 Page 12 of 26
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`NEO-AUTO_0115686
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`In some applications, the entire wireless network may consist ofmultiple groups of cells (or
`sectors) and each group may have its own set of common pilot subcarriers.
`In this scenario, only
`those base stations within their group are required to synchronize to a common reference. While
`the common pilot subcarriers within each group are designed to meet the criteria defined by (4)
`and (5) or by (8) and (9) for the use by its base stations, a particular counter-interference process
`(e.g., randomization in frequency or power control) will be applied to different sets of common
`pilot subcarriers so that the signals from the cells within the same group add coherently while the
`signals from the cells in other groups are treated as randomized interference. One embodiment of
`such implementation is illustrated in Figure 12, where Cells Al, A2, and A3 are conventional
`“sectors” belonging to one base station.
`
`4.10 Extension to Transmission of Data Information
`In one embodiment of implementation, all the design processes, criteria, and methods described
`in this invention can be extended to applications where common network information is required
`to be distributed to all receivers within the network. In one example, all the base stations within
`the network transmit, along with some common pilot subcarriers, an identical set of data
`subcarriers in which is imbedded the data information common to all the cells in the network
`(Figure 13). A receiver within the network can estimate the coefficients of the composite channel
`from the common pilot subcarriers and apply them to the data subcarriers to compensate for the
`channel effects, thereby recovering the data information.
`
`Reference
`[1] IEEE Standard for Local and Metropolitan Area Networks, Part 16: Air Interface for Fixed
`Broadband Wireless Access Systems - Medium Access Control Modifications and
`Additional Physical Layer Specifications for 2-11 GHz.
`
`Rev. 0.1 1/28/2004
`
`WALBELL TECHNOLOGIES. INC.
`Confidential and Proprietary
`
`9
`
`

`

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`NEO-AUTO_0115687
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`|
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`WALBELLTECHNOLOGIES,INC.
`
`ConfidentialandProprietary
`
`WALBELL
`
`pilotassistance
`Functionsthatneed
`
`Figure1
`
`Data
`
`Receiver
`
`offset
`Freq.
`
`Transmitter
`
`Data
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19316 Filed 06/20/24 Page 14 of 26
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`NEO-AUTO_0115688
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`eVALBELLTECHNOLOGIES,INC.
`
`ConfidentialandProprietary
`
`WALBELL
`
`Figure2
`
`subchannel3
`Subcarriersfor
`
`subchannel2
`Subcarriersfor
`
`subchannel!1
`Subcarriersfor
`
`Silentsubcarriers
`
`Pilotsubcarriers
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`s
`
`Channel
`
`p
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19317 Filed 06/20/24 Page 15 of 26
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`NEO-AUTO_0115689
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`ata
`
`Timeslots
`
`SENOUT
`PAGE
`
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`
`es
`
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`_WVALBELLTECHNOLOGIES,INC.
`
`USOGaNNUUETE
`ConfidentialandProprietary
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`SeER
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`Figure3
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`sjauueyoqns
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`EaBTOW”
`

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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19318 Filed 06/20/24 Page 16 of 26
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`NEO-AUTO_0115690
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`WALBELLTECHNOLOGIES,INC.
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`PERLEMTeenaeeRSaagCRIES
`
`FE
`
`ConfidentialandProprietary
`
`Figure4
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19319 Filed 06/20/24 Page 17 of 26
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`NEO-AUTO_0115691
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`ETTORETEREetttette
`
`4
`
`A
`
`Cc
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`Cc
`Cc
`SubcarrierarrangementforCellp
`
`Ss
`
`s
`
`ewALBELLTECHNOLOGIES,INC.
`
`ERT
`ConfidentialandProprietary
`
`ERT
`
`WALBELL
`
`Figure5
`
`fordata
`
`subcarriers
`
`subcarriers
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`”
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`s
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`s
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`c
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`c
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19320 Filed 06/20/24 Page 18 of 26
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`NEO-AUTO_0115692
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`WALBELLTECHNOLOGIES,INC.
`
`ConfidentialandProprietary
`
`WALBELL
`
`Figure6
`
`infor eh
`
`Pilotgenerationandinsertionfunctionalblock
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19321 Filed 06/20/24 Page 19 of 26
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`NEO-AUTO_0115693
`
`A
`
`REIS
`
`CAREYOLNOARIONSTIASROSATEEN MASAUERPEP
`
`_WVALBELLTECHNOLOGIES,INC.os
`
`ConfidentialandProprietary
`
`WALBELL
`
`Figure7
`
`subcarriers
`
`Pin(tear)=Pamrer)+
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`1
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`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19322 Filed 06/20/24 Page 20 of 26
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`NEO-AUTO_0115694
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`weALBELLJECHNOLOGIES,INC.
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`ConfidentialandProprietary
`Figure8
`
`WALBELL
`
`Transmittern
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`Tx
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`Transmitterm
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`—>|Tx
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`

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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19323 Filed 06/20/24 Page 21 of 26
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`NEO-AUTO_0115695
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`,INC.
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`ConfidentialandProprietary
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`(6)
`
`Branchn
`
`Branchm
`
`WALBELL=
`
`Figure9
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`AntennaArra
`
`

`

`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19324 Filed 06/20/24 Page 22 of 26
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`NEO-AUTO_0115696
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`10
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`VALBELLTECHNOLOGIES,INC.
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`ConfidentialandProprietary
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`WALBELL
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`SectorA
`
`MS
`
`Figure10
`
`

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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19325 Filed 06/20/24 Page 23 of 26
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`NEO-AUTO_0115697
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`ConfidentialandProprietary
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`ane
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`MANEOPETWAOERSano
`WALBELLTECHNOLO
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`WALBELL
`
`Figure11
`
`Tx
`
`Es
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`

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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19326 Filed 06/20/24 Page 24 of 26
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`NEO-AUTO_0115698
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`seamenALBELLTECHNOLOGIES,INC.
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`ConfidentialandProprietary
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`WALBELL
`
`Figure12
`
`CellA1
`
`GroupB
`
`

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`Case 2:22-md-03034-TGB ECF No. 255-7, PageID.19327 Filed 06/20/24 Page 25 of 26
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`NEO-AUTO_0115699
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`WALBELLTECHNOLOGIES,INC.
`NOREGREE carryaRITTRECEMERSACERE
`
`ConfidentialandProprietary
`
`REETEME
`
`WALBELLwe
`
`Figure13
`
`Commonsubcarrierarrangeme