Title of Invention

A METHOD FOR COMMUNICATING WITH A MULTIMODE RECEIVING DEVICE

Abstract An apparatus, such as a network element (112), for use in a system that communicates with a multimode receiving device (110), employs an information gating buffer (400) that is operably coupled to a first wireless system transmitter (404) and receives information to be transmitted by the wireless system transmitter (404). A synchronization controller (402), operably coupled to the information gating buffer (400) receives synchronization information (132) from a second wireless system using a second wireless system receiver circuit (130), and uses the timing synchronization information (132) to control the information gating buffer (400) to gate broadcast information for transmission from a first wireless system transmission circuit (128) to the multimode receiving device (110). A method includes receiving (200) timing synchronization information from the first wireless system, and using (204) the timing synchronization information to gate the transmission of information transmitted from the second wireless system to the multimode receiving device.
Full Text [0003] Some multimode receiving devices are known that have, for example,
two independent receive chains (and transmit chains) such that they have dual
receivers, one receiver dedicated to each of the different wireless systems. For
example, with WCDMA and group special mobile systems (GSM) multimode
systems, a multimode receiving device may scan and find, for example, the GSM
system when the WCDMA system is operating in a discontinuous mode. For
example, in a discontinuous mode, the WCDMA system is not in time
synchronization with a GSM system and sooner or later, the multimode receiving
device will locate a GSM channel, but the eventual location can waste bandwidth of a
WCDMA transmission. As such, inefficient processing can occur.
[0004] Single mode systems are known such as a system that uses, for
example, a global positioning satellite system to provide a synchronized time base for
a cellular base site. However, such systems are single mode systems in that the
receiving devices, such as the mobile devices, communicate via the cellular system
only. Such GPS and cellular systems merely synchronize a single communication
system, namely the cellular system, to a common GPS clock.
[0005] Also, it is known for cellular systems and other wireless systems to
have a type of control channel that, for example, contains synchronization information to allow devices to synchronize to a cellular system. This may take, for example, the form of a paging channel or a timing synchronization channel or any other suitable channel or information. However, typically, such cellular synchronization data is not in synchronization with a different wireless system for a multimode receiving device. Accordingly, if a multimode receiving device, for example, is listening on its
synchronization channel and the second wireless system, such as a digital broadcast
system is broadcasting information, the broadcast information may not be detected by
the multimode device or if detected, requires the device's processor to process
information from both systems at essentially the same time.
[0006] For example, multimode systems are also known that have a mobile
multimode receiving device that includes a receiver (and antenna) for receiving
cellular information and another receive chain and an antenna combination for
receiving digital broadcast information. However, if the multimode receiving device
(which also may be a transmitting device if desired), receives digital broadcast
information at the same time as it is listening to a cellular paging channel, the loading
on the processor can be quite large.
[0007] It would be desirable to have an apparatus and method so that a less
expensive processor may be used that would also potentially draw less current and for
mobile devices, result in a longer lasting battery and a smaller device. Therefore, it
would be desirable to better balance the processing load over time.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
[0008] The present invention is illustrated by way of example and not
limitation in the accompanying figures, in which like references numerals indicate
similar elements, and in which:
[0009] FIG. 1 is a block diagram illustrating one example of a multimode
communication system in accordance with one embodiment of the invention;
[0010] FIG. 2 is a flowchart illustrating one example of a method for
communicating with a multimode receiving device that receives information from a

first and second wireless system that are not synchronized in the time domain, in
accordance with one embodiment of the invention;
[0011] FIG. 3 is an example of a method for communicating with a multimode
receiving device in accordance with one embodiment of the invention;
[0012] FIG. 4 is a block diagram illustrating one example of a network
element for use in a system that communicates with a multimode receiving device in
accordance with one embodiment of the invention;
[0013] FIG. 5 is a diagrammatic representation of gating of information based
on timing synchronization information in accordance with one embodiment of the
invention;
[0014] FIG. 6 is a flowchart illustrating one example of a method used for
communicating with a multimode receiving device in accordance with one
embodiment of the invention; and
[0015] FIG. 7 is a block diagram illustrating one example of a wireless
multimode receiving device in accordance with one embodiment of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0016] Briefly, an apparatus, such as a network element, for use in a system
that communicates with a multimode receiving device, employs a first wireless
system transmitter, such as a broadcast system transmission circuit, to transmit or
broadcast information to the multimode receiving device. An information gating
buffer is operably coupled to a first wireless system transmitter and receives
information to be transmitted by the first wireless system transmitter. A
synchronization controller, operably coupled to the information gating buffer receives

synchronization information from a second wireless system, such as from a cellular
system, using a second wireless system receiver circuit, such as a cellular receiver
tuned to receive a paging channel, and uses the timing synchronization information to
control the information gating buffer to gate noncellular information for transmission
from the first wireless system transmitter to the multimode receiving device. For
example, in the case where the plurality of different wireless systems is a digital
broadcast system and a cellular system, a digital broadcast transmission circuit, such
as a portion of a broadcast base site controller, receives synchronization information
from a co-located or non-co-located cellular receiver to determine the synchronization
periods that are used by a multimode receiving device to listen for cellular
synchronization information. The synchronization controller effectively pauses the
broadcast of noncellular transmitted data over a digital broadcast antenna during the
time when the multimode receiving device is listening on the cellular paging channel
to avoid the sending of broadcast information on a non-synchronized system that may
arrive at the multimode receiving device at the same time the multimode receiving
device is listening for information from the other system. When the synchronization
period is over, the second wireless system then transmits the buffered broadcast
information and broadcasts it to the multimode receiving device. Hence, the
information processing loading on the multimode receiving device is effectively
delayed so that the processing operations in the multimode receiving device need only
process information from one of the plurality of non-synchronized systems at any one
time.

[0017] A method is also disclosed that includes receiving timing
synchronization information from a first wireless system, such as a cellular system, or
other wireless system and using the timing synchronization information from the first
wireless system to gate the transmission of information transmitted from a second
wireless system, such as a digital broadcast system or other wireless system, to the
multimode receiving device. From the perspective of the multimode receiving device,
a method is disclosed that includes switching to receive information from the first
wireless system during a synchronization period based on timing synchronization
information from the first wireless system and switching back to another receiver to
receive gated information from a second wireless system after the synchronization
period has ended, wherein the gated information is transmitted from the second
wireless system and was gated, by a network element, based on timing
synchronization information from the first wireless system.
[0018] As such, the predetermined synchronization periods of one wireless
system are used such that a digital broadcast system or other wireless system gates or
controls information flow from the multimode receiving device, such as a mobile
device or non-mobile device, to schedule transmission of broadcast information in
such a way that the communication from the broadcast system does not occur at the
same time as the mobile device (i.e., the multimode receiving device) is transmitting
or receiving data from the other wireless system. By gating the information on one
system, the multimode receiving device does not require, for example, a complete
dual receiver architecture and instead can have, for example a configurable receiver
that shares some configurable portions among a plurality of receivers and additionally

the loading on one or more processors may be more consistent so that a lower cost
processor scheme may be used if desired. Other advantages will be recognized by
those having ordinary skill in the art
[0019] FIG. 1 illustrates one example of a multimode communication system
100 in accordance with one embodiment of the invention that includes a multimode
receiving device 110 a network element 112 and an antenna 114 By way of example
only, and not limitation, the invention will be described with reference to a multimode
system that includes a cellular system and a digital broadcast system. However, the
invention is equally applicable to any suitable multimode system, including, but not
limited to, multiple mode systems employing different types of cellular systems, such
as CDMA as one system and TDMA system as another, or any suitable multimode
system that employs a plurality of wireless systems wherein the wireless systems are
not synchronized in a time domain. As shown in this example, the first system in this
example is considered to be a cellular system and a second system may be a multicast
broadcast system, or a point cast system or any other suitable digital broadcast
system. However, it will be recognized that any suitable systems may be employed.
[0020] The multimode receiving device 110 is a device that at least receives
information from both of the non-synchronized systems. Also by way of example,
and not limitation, multimode receiving device 110 will be referred to as a mobile
device such as a cell phone, PDA, internet appliance, laptop computer, or any other
suitable mobile device. However, the invention is equally applicable to non-mobile
devices that serve as multimode receiving devices that or at least receive information
from a plurality of different wireless systems that are not synchronized in a time

domain. The multimode receiving device 110 includes a first wireless receiver 116
and associated antenna 118 for receiving, for example, information from a first
wireless system, such as the cellular system. The wireless multimode receiving
device 110 also includes at least a second wireless receiver 120 and corresponding
antenna 122 operative to receive wireless information from a second wireless system,
such as a wireless digital broadcast system. The receivers 116 and 120 may be
conventional receivers as known in the art. Although two antennas are shown, it will
be recognized that if appropriate, a single antenna could be used.
[0021] For purposes of illustration only, and not limitation, antenna 122
therefore receives broadcast information from broadcast antenna 114 whereas antenna
118 receives cellular information from one more cellular base stations 125. Each of
the first and second wireless receivers 116 and 120 are operably coupled to a
switching mechanism 124, which in this example is shown to be incorporated as part
of control logic 126. The control logic 126 in this example takes the form of a
programmed processor that executes instructions that are stored in a memory (not
shown). However, any suitable structure may be used, including, but not limited to
discreet logic, state machines DSPs, microcontrollers, CPUs, or any suitable
combination of hardware, software or firmware as desired.
[0022] The control logic 126 is operably coupled to the switching mechanism
124 in this example. The switching mechanism 124 may be, for example, controllable
ports on a processing device which are selected or otherwise accessed by the
processor, and the control logic 126 is operative to switch the switching mechanism
124 to the first wireless receiver 116 to receive information from the first wireless

receiver 116 during a synchronization period of the cellular system, based on timing
synchronization from the cellular system. For example, the control logic 126 may
switch the receiver 116 to access apaging channel during a synchronization period
associated with the cellular system. The control logic 126 also controls the switching
mechanism 124 to switch back to receiving information from the second receiver 120
after the synchronization period has ended. As such, when the multimode receiving
device is listening to a cellular paging channel, the control logic 126 controls the
switching mechanism 124 to receive information from the paging channel through
receiver 116. As such the control logic 126 need not process information from the
other system. As such the multimode receiving device 110 listens to either a cellular
channel or direct broadcast channel at any one time.
[0023] The network element 112 includes a wireless transmission circuit 128,
in this case a second wireless system transmission circuit may be for example a
portion of a direct broadcast base station controller, or any other suitable network
element. The wireless system transmission circuit 128 is operative to transmit
information, such as broadcast information, over the wireless broadcast system, to the
multi-mode receiving device 110 via antenna 114. In this embodiment, the network
element 112 also includes a cellular wireless system receiver circuit 130 that is
operative to wirelessly receive synchronization information, such as synchronization
information from a cellular paging channel, transmitted over the cellular wireless
system. The wireless system receiver 130 may be a conventional cellular receiver that
may be for example co-located as part of the network element 112 such as a broadcast
base site controller if desired. However, as described for example with reference to

FIG. 4, the wireless system receiver 130 need not be co-located and instead may be
remotely located if desired. The wireless system receiver 130 receives
synchronization information from the cellular base station 124 or any other suitable
base station within the same cellular system. The timing synchronization information
132, such as frame and slot timing, as noted, may be received for example from a
paging channel of the cellular system. The wireless system receiver 130 receives the
timing synchronization information 132 from the cellular wireless system. The
wireless system receiver 130 provides the timing synchronization information 132 to
the wireless broadcast system transmission circuit 128. As such, synchronization
information from one wireless system is provided to a transmission circuit of the other
and non-synchronized system. By way of example, the timing synchronization
information 132 may be translated by the wireless system receiver 130 into timing
synchronization data 134 that may be for example a synchronization period or other
suitable data of when to begin and/or end the buffering of broadcast information as
described further below.
[0024] In the context of these specific examples, the second wireless system
transmission circuit 128 may be a digital broadcast transmission circuit that is
operative to transmit digital broadcast information via antenna 114 to the multi-mode
receiving device 110. Likewise, the wireless system receiver 130 may be a cellular
system receiver circuit that is operative to wirelessly receive synchronization
information associated with a cellular system and operative to provide timing
synchronization information or timing synchronization data based on the
synchronization information to the broadcast system transmission circuit.

[0025] In addition if desired, a plurality of wireless system receivers 130
through 130n may provide synchronization information to the wireless transmission
circuit 128 wherein each of the wireless system receivers 130-130n receive timing
synchronization information from differing non-synchronized wireless systems or
different base stations of the same system.
[0026] As such, in the embodiment where the differing non-synchronized
systems include for example a digital broadcast system and a cellular system, such as
GSM system, as a combined service to a multi-mode receiving device using separate
DXB (digital audio and/or digital video broadcast) and GSM networks, a GSM
mobile phone receiver for example might serve as the system receiver 130 and may be
located as part of DXB base station controller. The GSM receiver (system receiver
130) is tuned to the control channel of a preferred GSM network. The GSM receiver
acquires a GSM control channel and synchronizes to it. The GSM receiver provides
the synchronization dated, or pulse, or other suitable information, to the DXB
transmitter (the wireless system transmission circuit 128) at predetermined points in
the GSM slot and frame structure. These predetermined points are arranged such that
the broadcast information transmitted by the wireless system transmission circuit 128
is scheduled such that the transmission does not occur at the same time as the
multimode receiving device 110 is transmitting or receiving GSM information. By
- doing this, the multimode receiving device does not require a dual receiver
architecture and can have for example a single configurable receiver. Additionally,
the digital broadcast information can be scheduled such that it does not coincide with
the GSM operation of scanning adjacent GSM cells.

[0027] FIG. 2 illustrates one example of a method for communicating with a
multimode receiving device in accordance with one embodiment of the invention as
carried out, for example, by the network element 112 of FIG. 1. However, any
suitable component or group of components may carryout the steps. In block 200, the
method includes receiving timing synchronization information from a wireless
system, such as a cellular system, for example, using wireless system receiver 130 or
other suitable receiver. As shown in block 202, the wireless system receiver, or any
other suitable element or group of elements provides timing synchronization
information 132 to the transmission control circuit 128 associated with a different
wireless system, in this example, a direct broadcast system or other suitable system as
part of the multimode communication system 100. As shown on block 204, the
method includes using the timing synchronization information 132 from the cellular
wireless system to gate the transmission of information from the second wireless
system, such as the direct broadcast system, to the multimode receiving device. This
may include for example pausing the broadcast data over the digital broadcast
network during at least a portion of a synchronization period defined by the
synchronization information 132.
[0028] FIG. 3 is a flow chart illustrating a method for communicating with a
multimode receiving device taken, for example, from the perspective of a multimode
receiving device. During the synchronization period, for example, the multimode
receiving device, or other suitable device uses control logic 126 to switch to access
the first wireless system, such as a cellular system during the synchronization period
of the first wireless system. This is shown in block 300. As shown in block 302,

when the synchronization period is over, the method includes switching to the second
wireless system via the second wireless receiver 120 to receive the gated information
that is communicated over the second wireless system, such as gated broadcast
information.
[0029] Referring to FIG. 4-6, a more detailed description the operation of the
wireless system transmission circuit 128 will be described. The wireless system
transmission circuit 128 includes an information gating buffer 400 a synchronizing
controller 402 and a transmitter 404. The synchronization controller 402 may be any
suitable logic circuit, programmable processing device or any suitable combination of
hardware, software or firmware. The transmitter may be any conventional transmitter
circuitry. The information gating buffer 400 may be any suitable buffering
mechanism. The information gating buffer has an input 406, such as an input port or
other suitable input operably coupled to receive source information 408 to be
transmitted over antenna 114 via the transmitter 404. Information gating buffer 400
also has an output 410 operably coupled to the transmitter 404. The synchronization
controller 400 is operably coupled to the information gating buffer 400 and receives
the timing synchronization information 132 associated with the different wireless
system. The synchronization controller 400 generates buffer control data 412, which
controls the gating of information from buffer 400 based on the timing
synchronization information 132. The synchronization controller 402 uses the timing
synchronization information 132 to control the information gating buffer 400 to gate
information for transmission from the wireless transmission circuit 128 to the
multimode receiving device 110. In one example, the synchronization controller 402

generates a control signal 414 to the transmitter 404 to effectively turn on and turn off
transmission of data read out from the information gating buffer 400. As such, the
transmitter 404 may be turned off to conserve power based on the control signal 414
at an appropriate time. The information gating buffer 400 buffers information for a
period of time determined by the synchronization controller 402 and then the
synchronization controller 402 activates the transmitter 404 to read the buffered data
out for transmission over the antenna 114. As applied to a digital broadcast system,
the information gating buffer 400 is be a broadcast information gating buffer that
receives information to be broadcast by the broadcast transmission circuit (wireless
system transmission circuit 128) via the transmitter 404. Also in the embodiment in
FIG. 4, the wireless system receiver 130 may be a cellular system receiver circuit that
is not co-located with the wireless system transmission circuit. But is operative to
provide timing synchronization data based on synchronization information from the
cellular system. The synchronization controller 402 controls the buffering of
information during at least a portion of the synchronization period associated with the
timing synchronization information.
[0030] For example, referring to FIG. 5, in the time domain, time slots 500
and 502 associated with the first wireless system, such as a cellular system, define the
wakeup and receive slots in a paging channel. Transmitted information 504
represents the information transmitted from the second wireless system transmission
circuit 128. As noted, the timing synchronization information 132 may represent a
synchronization period during which time the multimode receiving device 110 listens
to a particular slot on a paging channel or scanning for a synchronization block on a

channel. During this time, the synchronization controller 402 controls the information
gating buffer 400 using the buffer control data 412 to buffer data during the
synchronization period 132 and, if desired, due to progation delays or other delays,
experienced by device 110, for a period of time longer than the synchronization
period represented as buffered data 506. As such, while the multimode receiving
device is listening on a cellular paging channel, no information is being broadcast by
' the nonsynchronized broadcast system but the nonsynchronized broadcast system
becomes synchronized by buffering information during the time that the multimode
receiving device is listening to the other network. After the buffering period has
lapsed, the synchronization controller activates the transmitter 404 to read out the
buffered data to transmit the buffered broadcast information after the synchronization
period has ended.
[0031] FIG. 6 represents an example of the operation of the synchronization
controller 402 when a plurality of wireless system receivers 130 through 130N may
be employed. Buffering is preferably done on a per broadcast channel basis in this
example. As such, in block 600, the method includes selecting the next information
stream from a data source 408 to be transmitted by the digital broadcast system or
transmission circuit 128. This may be done, for example, through a round robin
priority or any other suitable priority. As shown in block 602, the method includes
determining if the destination device is a multimode device. For example, through
apriori knowledge (e.g. data stored in a database), or signaling from the multimode
device or if the service is a multimode service. If the destination device is not a
multimode receiving device, the method includes, as shown in block 604, enabling

continuous transmission of source data 408 to antenna 114. As such, the information
gating buffer 400 may be effectively bypassed and the transmitter activated to allow
transmission of information to be broadcast continuously.
[0032] Referring back to block 602, if the destination device is a multimode
receiving device, the method includes incrementing a counter shown in block 605. As
shown in block 606, the method includes determining if the associated multimode
receiving device is part of a multimode system for which the transmission circuit is
coupled. In other words, the transmission circuit 128 identifies if it is receiving
synchronization information from a wireless system receiver 130-130n that has been'
assigned to this multimode receiving device. The broadcast system knows the
subscribers to the service. As shown in block 608, if the multimode receiving circuit
is part of a system for which the wireless system transmission circuit 128 receives
. synchronization information from, the synchronization information is then obtained
from that particular wireless system receiver circuit. For example, the plurality of
wireless system receiver circuits 130-130n are operatively coupled to the
synchronization controller 402 and each of them provides wirelessly received timing
synchronization information from one or more wireless systems. Once the timing
synchronization information is obtained, the synchronization controller 402 uses the
timing synchronization information to control the information gating buffer to gate
the information for transmission from the broadcast transmission circuit to the
multimode receiving device. In other words, the broadcast wireless system schedules
a gap in transmission with respect to the timing synchronization information from the
cellular system on a per channel basis as shown in block 610. As shown in block 612,

the counter is then incremented and a next destination device is evaluated to
determine whether the next destination device is a multimode receiving device as
shown in block 614. If so, the method reverts back to block 606. If not, a next
information stream is selected as shown in block 600.
[0033] FIG. 7 is ablock diagram illustrating one example of aportion of a
multimode receiving device 110 in accordance with one embodiment to the present
invention. The multimode receiving device 110 includes a first system receiver chain
700, a second system receiver chain 702, a switching mechanism 124, the control
logic 126 and a user interface 706. The user interface 706 may be, for example, a
touch screen, keypad or any other suitable user interface, and is used to allow the user
to indicate (select) whether to, for example, make a call on a cellular network or
receive broadcast information on a different and non-synchronized network. As such,
the user interface 706 presents the user with a selection menu to select effectively
which features the user wishes to use and hence the associated network. The selection
information 708 is provided to the control logic 126, which then activates a switch
124 to switch to the first system receiver chain or second system receiver chain 700,
702 depending upon the selected system. Also, the control logic 126 automatically
switches to the cell system periodically when receiving broadcast data to obtain
paging messages or other suitable information. [0034] In this embodiment, each of the system receiver chains includes a .
common programmable receiver stage such as gain stages or other suitable stages that
may be programrnably reconfigured via control logic 126, via stage control signals
710 and 712 respectively. As such, additional cost savings may be provided by

reusing portions of the receiver chain since only one receiver is providing information
at any one time. Error correction processors, packet data reconstruction operations or
other elements may also be reconfigured. The stage control signals 710 and 712 may
be, for example, enable lines or circuits to enable and disable sections of a receiver
chain, such as an amplification stage or other suitable stages if desired.
[0035] The above apparatus and methods, among other advantages, gate in
broadcast information or other system information when, for example, a mobile
device or other multimode receiving device is listening to a synchronization channel
on a non-synchronized network such as a cellular network. Hence, the multimode
receiving device, which also may have suitable transmitter stages, receives
information from one system to a point where after the multimode receiving device
switches to a different receiver and receives gated information from a different
network. The multimode receiving device switches to a second receiver to receive
gated information transmitted from a first wireless system (e.g. broadcast system) that
was gated, such as by, for example, a network element, based on timing
synchronization information from the second wireless system. As such, an onboard
processor, plurality of processors or other suitable logic, need not process information
from two differing systems at the same time. In addition, if propagation delays and
multipath signals are being received by the multimode receiving device, the gated
information at the broadcast network element is.gated for a longer period of time to
accommodate for the multipath delays. Other advantages will be recognized by those
skilled in the art.

[0036] The above detailed description of the invention and the examples
described therein have been presented for the purposes of illustration and description.
It is therefore contemplated that the present invention cover any and all modifications,
variations or equivalents that fall within the broad scope of the basic underlying
principles disclosed above and claimed herein.

WE CLAIM:
1. A method for communicating with a multimode receiving device that at
least receives information from a first and a second wireless system, that are not
synchronized in a time domain, involving the steps of:
receiving timing synchronization information from the first wireless
system;
using the timing synchronization information from the first wireless
system to gate a transmission of information transmitted from me second wireless system
to the multimode receiving device; and
wherein receiving timing synchronization information from the first
wireless system includes receiving, by a first system receiver, co-located with a second
wireless system transmission control circuit, producing, by the first system receiver, first
system synchronization data for a synchronization controller.
2. The method as claimed in claim 1 wherein using the timing
synchronization information from the first wireless system to gate the transmission of
information involves controlling the buffering of data to be transmitted by the second
wireless system during at least a portion of a synchronization period associated with the
timing synchronization information associated with the first wireless system.

3. The method as claimed in claim 2 wherein gating of the transmission of
information for the at least portion of the synchronization period involves gating
information to be transmitted for a period longer than the synchronization period based
on delay of signals experienced by multimode receiving device.
4. The method as claimed in claim 1 involving the steps of:
switching to receive information from the first wireless system during a
synchronization period based on timing synchronization information from the first
wireless system; and
switching back to receive gated information from the second wireless
system after the synchronization period has ended wherein the gated information is
transmitted from the second wireless system and was gated, by a network element, based
on timing synchronization information from the first wireless system.
5. A wireless multimode receiving device comprising:
at least a first wireless receiver operative to receive wireless information
from a first wireless system;
at least a second wireless receiver operative to receive wireless
information from a second wireless system;
a switching mechanism, operatively coupled to the first and second
wireless receivers; and

control logic, operatively coupled to the switching mechanism and
operative to switch the switching mechanism to the first wireless receiver to receive
information from the first wireless receiver during a synchronization period based on
timing synchronization information from the first wireless system and to switch back to
receiving information from the second wireless receiver after the synchronization period
has ended.
6. The wireless multimode receiving device as claimed in claim 5 wherein
the control logic switches to the second wireless receiver to receive gated information
transmitted from the first wireless system that was gated, by a network element, based on
timing synchronization information from the first wireless system.
7. A network element for use in a system that communicates with a
multimode receiving device comprising:
a first wireless system transmitter operative to transmit information
associated with the first wireless system to the multimode receiving device;
an information gating buffer operatively coupled to the first wireless
system transmitter; and
a synchronization controller, operatively coupled to the information gating
buffer and to receive timing synchronization information from a second wireless system
wherein the synchronization information is associated with the second and different

wireless system, wherein the first and second wireless systems are not synchronized in a
time domain, and operative to use the timing synchronization information to control the
information gating buffer to gate information for transmission from me first wireless
system transmitter to the multimode receiving device.
8. The network element as claimed in claim 8 comprising at least one second
wireless system receiver circuit, operatively coupled to the synchronization controller,
and operative to wirelessly receive synchronization information associated with the
second and different wireless system, and operative to provide timing synchronization
data based on the synchronization information from the second wireless system.
10. The network element as claimed in claim 8 wherein using the timing
synchronization information from the first wireless system to gate the transmission of
information includes controlling the buffering by the information buffer during at least a
portion of a synchronization period associated with the timing synchronization
information.



ABSTRACT


A METHOD FOR COMMUNICATING WITH
A MULTIMODE RECEIVING DEVICE
An apparatus, such as a network element (112), for use in a system that
communicates with a multimode receiving device (110), employs an
information gating buffer (400) that is operably coupled to a first wireless
system transmitter (404) and receives information to be transmitted by the
wireless system transmitter (404). A synchronization controller (402), operably
coupled to the information gating buffer (400) receives synchronization
information (132) from a second wireless system using a second wireless
system receiver circuit (130), and uses the timing synchronization information
(132) to control the information gating buffer (400) to gate broadcast
information for transmission from a first wireless system transmission circuit
(128) to the multimode receiving device (110). A method includes receiving
(200) timing synchronization information from the first wireless system, and
using (204) the timing synchronization information to gate the transmission of
information transmitted from the second wireless system to the multimode
receiving device.

Documents:

825-KOLNP-2005-(13-08-2012)-AMANDED CLAIMS.pdf

825-KOLNP-2005-(13-08-2012)-CORRESPONDENCE.pdf

825-KOLNP-2005-(27-09-2013)-CORRESPONDENCE.pdf

825-KOLNP-2005-(27-09-2013)-DRAWINGS.pdf

825-KOLNP-2005-(27-09-2013)-FORM-2.pdf

825-kolnp-2005-abstract.pdf

825-KOLNP-2005-ASSIGNMENT-1.1.pdf

825-KOLNP-2005-ASSIGNMENT-1.2.pdf

825-kolnp-2005-assignment.pdf

825-KOLNP-2005-CANCELLED PAGES.pdf

825-kolnp-2005-claims.pdf

825-KOLNP-2005-CORRESPONDENCE 1.2.pdf

825-KOLNP-2005-CORRESPONDENCE-1.1.pdf

825-kolnp-2005-correspondence.pdf

825-KOLNP-2005-DESCRIPTION (COMPLETE) 1.1.pdf

825-kolnp-2005-description (complete).pdf

825-kolnp-2005-drawings.pdf

825-KOLNP-2005-EXAMINATION REPORT-1.1.pdf

825-kolnp-2005-examination report.pdf

825-kolnp-2005-form 1.pdf

825-KOLNP-2005-FORM 13.pdf

825-KOLNP-2005-FORM 18-1.1.pdf

825-kolnp-2005-form 18.pdf

825-kolnp-2005-form 2.pdf

825-kolnp-2005-form 3.pdf

825-kolnp-2005-form 5.pdf

825-KOLNP-2005-GRANTED-ABSTRACT.pdf

825-KOLNP-2005-GRANTED-CLAIMS.pdf

825-KOLNP-2005-GRANTED-DESCRIPTION (COMPLETE).pdf

825-KOLNP-2005-GRANTED-DRAWINGS.pdf

825-KOLNP-2005-GRANTED-FORM 1.pdf

825-KOLNP-2005-GRANTED-FORM 2.pdf

825-KOLNP-2005-GRANTED-FORM 3.pdf

825-KOLNP-2005-GRANTED-FORM 5.pdf

825-KOLNP-2005-GRANTED-SPECIFICATION-COMPLETE.pdf

825-KOLNP-2005-INTERNATIONAL PUBLICATION.pdf

825-KOLNP-2005-INTERNATIONAL SEARCH REPORT & OTHERS.pdf

825-KOLNP-2005-INTERNATIONAL SEARCH REPORT.pdf

825-KOLNP-2005-OTHERS-1.1.pdf

825-kolnp-2005-others.pdf

825-KOLNP-2005-PA-1.1.pdf

825-KOLNP-2005-PA-1.2.pdf

825-kolnp-2005-pa.pdf

825-KOLNP-2005-PCT PRIORITY DOCUMENT NOTIFICATION.pdf

825-KOLNP-2005-PETITION UNDER RULE 137.pdf

825-kolnp-2005-reply to examination report.pdf

825-KOLNP-2005-SPECIFICATION 1.1.pdf

825-kolnp-2005-specification.pdf


Patent Number 257825
Indian Patent Application Number 825/KOLNP/2005
PG Journal Number 45/2013
Publication Date 08-Nov-2013
Grant Date 08-Nov-2013
Date of Filing 05-May-2005
Name of Patentee MOTOROLA, INC.
Applicant Address 1303 EAST ALGONQUIN ROAD, SCHAUMBURG, IL
Inventors:
# Inventor's Name Inventor's Address
1 ROBINSON, WILLIAM, NEIL 303 DEVON COURT, GRAYSLAKE, IL 60030
PCT International Classification Number H04Q 1/38
PCT International Application Number PCT/US2003/039339
PCT International Filing date 2003-12-09
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10/324,702 2002-12-20 U.S.A.