US Pat. No. 9,226,320

PRE-ALLOCATED RANDOM ACCESS IDENTIFIERS

Wi-LAN Inc., Ottawa, ON ...

1. A method of operating a mobile station, comprising:
receiving, from a serving base station, an indication of a first reserved set of access identifiers usable for non-contention
access over a first random access channel in a coverage area of the serving base station;

obtaining, during a handover of the mobile station from the serving base station to a target base station, an indication of
a non-contention reserved access identifier identifying the mobile station in a coverage area of the target base station;

transmitting the non-contention reserved access identifier to the target base station over a second random access channel
in the coverage area of the target base station;

receiving, from the target base station, a feedback message comprising a timing adjustment; and
adjusting at least one operating parameter of a transmission from the mobile station to the target base station based at least
in part on the feedback message.

US Pat. No. 9,226,319

PRE-ALLOCATED RANDOM ACCESS IDENTIFIERS

Wi-LAN Inc., Ottawa, ON ...

1. A method of handover of a mobile station to a target base station, the method comprising:
transmitting, from the target base station, an indication of a reserved set of access identifiers from a plurality of access
identifiers for non-contention access over a shared random access channel in a coverage area of the target base station;

communicating, from the target base station, an indication of a non-contention reserved access identifier, the non-contention
reserved access identifier from the reserved set of access identifiers;

receiving, at the target base station, from the mobile station, during a handover of the mobile station to the target base
station, the non-contention reserved access identifier over the shared random access channel in the coverage area of the target
base station, the received non-contention reserved access identifier enabling identification of the mobile station by the
target base station; and

transmitting, from the target base station, a feedback message to the mobile station, the feedback message based at least
in part on a parameter of a signal associated with the received non-contention reserved access identifier, the feedback message
comprising at least a timing adjustment useable for synchronization of the mobile station with the target base station.

US Pat. No. 9,344,998

MULTI-BAND CHANNEL AGGREGATION

Wi-LAN Inc., Ottawa, Ont...

1. A method of operating a subscriber station, comprising:
receiving first information comprising a channel aggregation capability announcement;
transmitting second information comprising an indication that the subscriber station is capable of channel aggregation;
receiving channel aggregation information comprising an association of the subscriber station with a downlink aggregated channel,
wherein the downlink aggregated channel comprises a first orthogonal frequency division multiplexing (OFDM) channel using
a first plurality of subcarriers aggregated with at least a second OFDM channel using a second plurality of subcarriers, and
wherein the first OFDM channel is received from a first cell, and the second OFDM channel is received from a second cell,
and the first plurality of subcarriers is different than the second plurality of subcarriers; and

receiving data via the downlink aggregated channel.

US Pat. No. 9,048,891

MULTI-TIERED QUANTIZATION OF CHANNEL STATE INFORMATION IN MULTIPLE ANTENNA SYSTEMS

Wi-LAN Inc., Ottawa, Ont...

1. An apparatus for quantizing channel state information in a multiple-input transmission system having at least a transmitter
and a receiver, the apparatus comprising:
first quantizing means for quantizing information concerning a first channel state to produce first quantized information,
and sending the first quantized information to the transmitter; and

second quantizing means for quantizing information concerning a second channel state by reference to (1) the second channel
state and (2) the first quantized information, to produce second quantized information, and sending the second quantized information
to the transmitter.

US Pat. No. 9,332,572

PRE-ALLOCATED RANDOM ACCESS IDENTIFIERS

Wi-LAN Inc., Ottawa, ON ...

1. A method of handover of a mobile station to a target base station, the method comprising:
transmitting, from the target base station, an indication of a reserved set of access identifiers from a plurality of access
identifiers for non-contention access over a shared random access channel in a coverage area of the target base station;

communicating, from the target base station, an indication of a non-contention reserved access identifier, the non-contention
reserved access identifier from the reserved set of access identifiers;

receiving, at the target base station, from the mobile station, during a handover of the mobile station to the target base
station, the non-contention reserved access identifier over the shared random access channel in the coverage area of the target
base station, the received non-contention reserved access identifier enabling identification of the mobile station by the
target base station; and

transmitting, from the target base station, a feedback message to the mobile station, the feedback message based at least
in part on a parameter of a signal associated with the received non-contention reserved access identifier, the feedback message
comprising at least a timing adjustment useable for synchronization of the mobile station with the target base station.

US Pat. No. 9,167,560

MULTI-BAND CHANNEL AGGREGATION

Wi-LAN Inc., Ottawa, Ont...

1. A method of transmission in a base station, the method comprising:
transmitting first data on a first channel via a first carrier to a first wireless device, the first channel comprising multiple
subchannels, wherein the first channel is transmitted in a first cell;

transmitting second data on a second channel via a second carrier to the first wireless device, wherein the second channel
is transmitted in a second cell, such that the first data and the second data are transmitted in a coordinated manner by aggregating
the first channel and the second channel, the first wireless device supporting channel aggregation;

transmitting third data on the second channel via the second carrier to a second wireless device, the second wireless device
not supporting channel aggregation; and

transmitting fourth data on the first channel via the first carrier to a third wireless device, the third wireless device
not supporting channel aggregation;

wherein each of the first channel and the second channel is formed so that the second wireless device is capable of initiating
communication with the base station via the second channel and the third wireless device is capable of initiating communication
with the base station via the first channel, wherein the first channel is located in a different band than the second channel,
wherein the first channel and the second channel are provided in a set of channels, and wherein each channel in the set of
channels can be individually and simultaneously used by wireless devices that do not support channel aggregation and by wireless
devices that support channel aggregation.

US Pat. No. 9,509,459

INTERCELL INTERFERENCE MITIGATION

Wi-LAN Inc., Ontario (CA...

1. A method of intercell interference mitigation, the method comprising:
synchronizing a downlink resource allocation zone across a plurality of base stations;
receiving a channel quality indicator (CQI) value from a subscriber station;
coordinating a same resource permutation type across the plurality of base stations in the downlink resource allocation zone
based on the received CQI, wherein coordinating the same resource permutation type includes transmitting a first message indicating
a permutation base associated with the same resource permutation type and a second message indicating a pseudo random binary
sequence identifier associated with the same resource permutation type to the plurality of base stations; and

allocating downlink resources to the subscriber station in the downlink resource allocation zone based on the same resource
permutation type.

US Pat. No. 9,268,800

TV WHITE SPACE DEVICES USING STRUCTURED DATABASES

Wi-LAN Inc., Ottawa (CA)...

1. A central database apparatus for managing the TV spectrum available for non-licensed applications, comprising:
a first data storage medium for storing a first data structure comprising identification information and operational parameters
for all licensed TV band users operating in a geographical area;

a second data storage medium for storing a second data structure comprising central identification information and central
operational parameters for all unlicensed TVBDs currently operating in the geographical area;

an interface for communicating with the unlicensed TVBD;
an interface for communicating with a local database to receive a query access address of the local database;
a central database manager for:
updating the identification information and the operational information of the licensed TV band users in the first data structure
at preset intervals or upon changes;

providing the unlicensed TVBD with the address of the local database;
and
updating the central identification information and the central operational parameters of the unlicensed TVBD in the second
data structure.

US Pat. No. 9,143,585

METHOD AND SYSTEM FOR GENERIC MULTIPROTOCOL CONVERGENCE OVER WIRELESS AIR INTERFACE

Wi-LAN Inc., Ottawa, ON ...

1. A method for use in wireless communication, the method comprising:
a generic packet convergence sublayer (GPCS) module receiving a data packet, wherein the data packet is of a first protocol
type of a plurality of protocol types that the GPCS module is capable of processing, wherein the data packet comprises a header
portion and a payload portion, and wherein the header portion of the data packet does not include an indication of the first
protocol type;

the GPCS module receiving a protocol type tag indicative of the first protocol type associated with the data packet, wherein
the protocol type tag is not received in the data packet;

the GPCS module receiving a logical flow identifier associated with the data packet and the first protocol type of the data
packet; and

the GPCS module mapping the logical flow identifier to a connection identifier (CID), wherein the CID is associated with a
predetermined quality of service (QoS), and transmitting the data packet with the CID to a medium access control (MAC) protocol
module for scheduling based on the CID.

US Pat. No. 9,088,958

METHODS AND APPARATUS FOR IDENTIFYING SUBSCRIBER STATION MOBILITY

WI-LAN INC., Ottawa, Ont...

1. A method of providing at least one mobility factor by a mobile device, the method comprising:
the mobile device receiving a plurality of Orthogonal Frequency Division Multiplex (OFDM) symbols over a plurality of channels
from at least one base station;

the mobile device determining a plurality of mobility metrics for each of the plurality of channels based at least in part
on a signal quality associated with the plurality of OFDM symbols received over a respective one of the plurality of channels;
and

the mobile device combining the plurality of mobility metrics for each channel to generate a plurality of composite mobility
metrics, each of the plurality of composite mobility metrics being associated with a respective one of the plurality of channels.

US Pat. No. 9,325,399

CLOSED FORM SINGULAR VALUE DECOMPOSITION

Wi-LAN Inc., Ottawa, Ont...

1. A method for use in a client station, the method comprising:
receiving a plurality of signals transmitted by a base station implementing a plurality of antennas configured for a multiple-input
and multiple-output transmission;

determining, using a closed form singular value decomposition, one or more singular vectors;
aligning a phase of each of the one or more singular vectors to generate one or more aligned singular vectors;
averaging the aligned singular vectors to generate an average singular vector; and
providing, as feedback, the average singular vector to a precoder at the base station.

US Pat. No. 9,331,768

MITIGATION OF TRANSMISSION ERRORS OF QUANTIZED CHANNEL STATE INFORMATION FEEDBACK IN MULTI ANTENNA SYSTEMS

Wi-LAN Inc., Ottawa, Ont...

1. A wireless receiving device comprising:
at least one processing device configured to provide a plurality of indices for a plurality of channel states; wherein the
plurality of channel states corresponds to multiple input multiple output (MIMO) precoding information;

the at least one processing device further configured to produce one encoded sequence representative of the provided plurality
of indices; and

a transmitter configured to transmit the one encoded sequence to a wireless transmission device.

US Pat. No. 9,161,341

ERROR CORRECTION FOR A PERSISTENT RESOURCE ALLOCATION

Wi-LAN Inc., Ottawa, Ont...

1. A method of processing a persistent resource allocation in a client station, the method comprising:
receiving persistent resource allocation information, the persistent resource allocation information including an indication
of downlink (DL) persistent resources, a first identifier associated with the client station, an indication of a DL allocation
period, uplink (UL) persistent resources, and an indication of an UL allocation period; and

on a condition that the first identifier identifies the client station, periodically decoding the DL persistent resources
and persistently transmitting via the UL persistent resources, wherein the DL persistent resources repeat at an interval defined
by the DL allocation period and the UL persistent resources repeat at an interval defined by the UL allocation period.

US Pat. No. 9,313,810

PRE-ALLOCATED RANDOM ACCESS IDENTIFIERS

Wi-LAN Inc., Ottawa, ON ...

1. A method of handover of a mobile station to a target base station, the method comprising:
transmitting, from the target base station, an indication of a reserved set of access identifiers from a plurality of access
identifiers for non-contention access over a shared random access channel in a coverage area of the target base station;

communicating, from the target base station, an indication of a non-contention reserved access identifier, the non-contention
reserved access identifier from the reserved set of access identifiers;

receiving, at the target base station, from the mobile station, during a handover of the mobile station to the target base
station, the non-contention reserved access identifier over the shared random access channel in the coverage area of the target
base station, the received non-contention reserved access identifier enabling identification of the mobile station by the
target base station; and

transmitting, from the target base station, a feedback message to the mobile station, the feedback message based at least
in part on a parameter of a signal associated with the received non-contention reserved access identifier, the feedback message
comprising at least a timing adjustment useable for synchronization of the mobile station with the target base station.

US Pat. No. 9,319,874

AUTOMATIC CHANNEL PASS-THROUGH

Wi-LAN Inc., Ottawa, Ont...

1. A network infrastructure device for processing a data stream received via a communication channel, the network infrastructure
device comprising:
a receive interface and a transmit interface coupled to the communication channel; and
a set of signal processing blocks operationally coupled to the communication channel between the receive interface and the
transmit interface;

wherein the network infrastructure device is configured to analyze the data stream to identify an occurrence of a predetermined
data pattern;

wherein the network infrastructure device is further configured to operate in a first channel mode by:
performing at least one of adding at least one signal processing block to and removing at least one signal processing block
from the set of signal processing blocks operationally coupled to the communication channel upon the occurrence of the predetermined
data pattern, and

processing the data stream based on the predetermined data pattern, and
providing the data stream to the transmit interface after processing; and
wherein the network infrastructure device is further configured to operate in a second channel mode by passing the data stream
from the receive interface to the transmit interface without processing on a condition that the predetermined data pattern
is not identified in the data stream;

wherein the data stream changes from a VoIP session to an intersystem link protocol (ISLP) session; and
wherein the predetermined data pattern is a sequence of ISLP flags.

US Pat. No. 9,380,607

PRE-ALLOCATED RANDOM ACCESS IDENTIFIERS

WI-LAN INC., Ottawa (CA)...

1. A method of operating a wireless cellular system, comprising:
transmitting, from a serving base station, an indication of a first reserved set of access identifiers usable for non-contention
access over a first random access channel by a mobile station in a coverage area of the serving base station;

transmitting, from a target base station, an indication of a second reserved set of access identifiers usable for non-contention
access over a second random access channel by the mobile station in a coverage area of the target base station;

enabling the mobile station to obtain, during a handover of the mobile station from the serving base station to the target
base station, an indication of a non-contention reserved access identifier identifying the mobile station in the coverage
area of the target base station, the non-contention reserved access identifier belonging to the second reserved set of access
identifiers;

receiving, at the target base station, from the mobile station, the non-contention reserved access identifier over the second
random access channel;

transmitting, to the mobile station, from the target base station, a feedback message comprising a timing adjustment; and
receiving, at the target base station, a transmission from the mobile station, the transmission characterized by at least
one adjusted operating parameter based at least in part on the feedback message.

US Pat. No. 9,775,002

METHODS AND APPARATUS FOR IDENTIFYING SUBSCRIBER STATION MOBILITY

WI-LAN INC., Ottawa (CA)...

1. A method for operating a mobile device, the method comprising:
receiving, at the mobile device, a plurality of Orthogonal Frequency Division Multiplex (OFDM) symbols over a plurality of
OFDM subcarriers from at least one base station;

determining, by the mobile device, a mobility factor based at least in part on the receiving of the plurality of OFDM symbols;
modifying, by the mobile device, one or more channel operating parameters of the mobile device based at least in part on the
mobility factor; and

determining sleep mode parameters for the mobile device based at least in part on the mobility factor.

US Pat. No. 9,860,753

METHOD AND APPARATUS FOR BANDWIDTH REQUEST/GRANT PROTOCOLS IN A WIRELESS COMMUNICATION SYSTEM

Wi-LAN Inc., Ottawa (CA)...

1. A method of operating a base station in a wireless communication system, the method comprising:
communicating, via a back-haul interface, with a communications hub that interfaces a wireless communication system with public
network service providers via one or more wired communications links;

sending and receiving with a plurality of wireless communication devices, via an active antenna array, data in a first frame,
the first frame comprised of N uplink time slots and M downlink time slots;

sending and receiving with the plurality of wireless communication devices, via the active antenna array, data in a second
frame, the second frame comprised of Y uplink time slots and Z downlink time slots, wherein N and Y are not equal, the first
frame and the second frame having the same duration, and the numbers N, M, Y and Z adaptable based upon conditions;

detecting a padding packet received from a first wireless communication device of the plurality of wireless communication
devices; and

in response to the detecting, reducing the number of uplink time slots assigned to the first wireless device.

US Pat. No. 9,723,529

MULTIPLE NETWORK ACCESS SYSTEM AND METHOD

WI-LAN INC., Ottawa, Ont...

1. A method for receiving a multimedia broadcast service at a mobile device, the method comprising:
establishing a connection, by the mobile device, with a first network via a radio frequency (RF) modem on a first frequency
associated with the first network, wherein the connection includes a bidirectional logical link with the first network and
the mobile device is associated with a first base station;

receiving, by the mobile device, via the RF modem, information for a second network from the first network, wherein the second
network is a unidirectional network and the information includes time slice information associated with a broadcast event;

receiving, by the mobile device via the RF modem on the first frequency, the broadcast event from the second network at a
time indicated by the time slice information; and

receiving, by the mobile device, transmissions from the first network via the RF modem in non-broadcast event time intervals
based on the time slice information.

US Pat. No. 9,854,577

MULTI-BAND CHANNEL AGGREGATION

Wi-LAN Inc., Ottawa (CA)...

1. A wireless device comprising:
a receive unit; and
a processor; and
the receive unit and the processor are configured to receive control data via control channels over at least a first communication
channel or a second communication channel, the control data including a first assignment of downlink resources for the first
communication channel and a second assignment of downlink resources for the second communication channel; wherein the first
communication channel and the second communication channel have different carrier frequencies; wherein the first assignment
of downlink resources indicates assigned orthogonal frequency division multiple access (OFDM) subcarriers of the first communication
channel and the second assignment of downlink resources indicates assigned OFDM subcarriers of the second communication channel;
and

the receive unit and the processor are further configured to receive downlink data on the assigned OFDM subcarriers of the
first communication channel and the assigned OFDM subcarriers of the second communication channel; wherein at least a portion
of the downlink data is received at least in part simultaneously on the first communication channel and the second communication
channel; and

the processor is configured to combine at least a portion of the received downlink data from the first communication channel
and the second communication channel to produce data for a single service.

US Pat. No. 10,045,356

APPARATUS, SYSTEM AND METHOD FOR THE TRANSMISSION OF DATA WITH DIFFERENT QOS ATTRIBUTES

Wi-LAN Inc., Ottawa (CA)...

1. A base station, comprising:a reassembly controller
operable to receive, over a single dedicated channel, a plurality of segmented packets from a wireless subscriber station, each respective segmented packet of the plurality of segmented packets associated with a respective quality of service (QoS), the single dedicated channel carrying segmented packets associated with a plurality of logical channel queues,
operable to reassemble the plurality of segmented packets to form a higher layer packet, and
operable to forward the higher layer packet towards a destination; and
a QoS processor operable to prioritize packets for transmission.

US Pat. No. 9,967,870

EFFICIENT AND CONSISTENT WIRELESS DOWNLINK CHANNEL CONFIGURATION

WI-LAN INC., Ottawa (CA)...

3. A method performed by a subscriber station of a wireless communication system, the method comprising:receiving an orthogonal frequency division multiplex (OFDM) signal transmitted by a first antenna port and a second antenna port of a base station, wherein the OFDM signal corresponds to a least one slot, wherein a slot of the OFDM signal includes a plurality of subcarriers and a plurality of symbols, wherein the slot includes a first antenna port pilot on at least a first subcarrier of the plurality of subcarriers and a second subcarrier of the plurality of subcarriers, and a second antenna port pilot on at least the first subcarrier of the plurality of subcarriers and the second subcarrier of the plurality of subcarriers, wherein the first antenna port pilot and the second antenna port pilot are received in adjacent symbols in time, respectively, wherein the first subcarrier and the second subcarrier are separated by a plurality of adjacent subcarriers and the first antenna port pilot and the second antenna port pilot are not received via any of the plurality of adjacent subcarriers in the slot, and wherein the first antenna port pilot and the second antenna port pilot are not received in all of the plurality of symbols of the slot;
receiving a primary signal and a secondary signal for cell search, wherein the primary signal and the secondary signal are derived from Zadoff-Chu sequences, wherein the first antenna port pilot and the second antenna port pilot do not overlap with the primary signal and the secondary signal; and
utilizing the first antenna port pilot and the second antenna port pilot to recover data from the OFDM signal.

US Pat. No. 9,935,705

FRAME STRUCTURE FOR AN ADAPTIVE MODULATION WIRELESS COMMUNICATION SYSTEM

WI-LAN INC., Ottawa (CA)...

1. A method of operating an on-demand wireless cellular communication system for exchanging information between a base station and a plurality of mobile cellular phones, comprising:at the base station:
allocate downlink transmission resources to one or more receiving mobile cellular phones in downlink time slots of a frame, and allocate uplink transmission resources to one or more transmitting mobile cellular phones in uplink time slots of the frame;
determine per mobile cellular phone uplink modulation schemes for the uplink time slots and per mobile cellular phone downlink modulation schemes for the downlink time slots;
encode downlink data addressed to the one or more receiving mobile cellular phones according to a respective determined downlink modulation scheme and transmit the encoded downlink data in the downlink time slots;
receive the uplink time slots with encoded uplink data from the one or more transmitting mobile cellular phones and decode the encoded uplink data according to a respective determined uplink modulation scheme;
encode control information using a least complex modulation scheme available in the wireless cellular communication system for control information, the control information providing the determined downlink modulation schemes for the one or more receiving mobile cellular phones and the determined uplink modulation schemes for the one or more transmitting mobile cellular phones; and
transmit the encoded control information to the plurality of mobile cellular phones;
at a receiving mobile cellular phone:
receive the control information, receive the downlink encoded data addressed to the receiving mobile cellular phone in the downlink time slots, and decode the downlink encoded data based on the respective determined downlink modulation scheme; and
at a transmitting mobile cellular phone:
receive the control information, encode the uplink data based on the respective determined uplink modulation scheme, and transmit the encoded uplink data to the base station in the uplink time slots.

US Pat. No. 10,142,988

BASE STATION CONFIGURED FOR PERSISTENT RESOURCE ALLOCATION

WI-LAN INC., Ottawa (CA)...

1. A method of persistent resource allocation performed by a base station, the method comprising:transmitting, via a wireless radio frequency (RF) transmitter of the base station, a first RF wireless signal including persistent resource allocation information, the persistent resource allocation information including an indication of downlink (DL) persistent resources, a first identifier associated with a client station, an indication of a DL allocation period, an indication of uplink (UL) persistent resources, and an indication of an UL allocation period;
periodically transmitting a second series of RF wireless signals including DL user data, via the wireless RF transmitter of the base station to the client station associated with the first identifier, the second series of RF wireless signals being transmitted via the DL persistent resources and based on the DL allocation period, the DL persistent resources repeating at an interval defined by the DL allocation period; and
persistently receiving a third series of RF wireless signals including UL user data, via a wireless RF receiver of the base station, the third series of RF wireless signals being received via the UL persistent resources and based on the UL allocation period from the client station associated with the first identifier, the UL persistent resources repeating at an interval defined by the UL allocation period.

US Pat. No. 10,182,381

MULTIPLE NETWORK ACCESS SYSTEM AND METHOD

Wi-LAN INC., Ottawa (CA)...

1. A method for transmitting a multimedia broadcast service by a base station, the method comprising:establishing a connection with a mobile device via a first frequency associated with a bidirectional network;
transmitting, via the first frequency, information associated with a unidirectional network, wherein the information includes resource information associated with a broadcast event;
broadcasting, via the first frequency and on a resource indicated by the resource information, data associated with the broadcast event; and
transmitting, via the first frequency, data on a resource other than the resource indicated by the resource information.