System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS)
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-007/02
H04B-007/01
H04B-007/06
H04B-007/04
H04B-007/10
출원번호
US-0464648
(2012-05-04)
등록번호
US-9312929
(2016-04-12)
발명자
/ 주소
Forenza, Antonio
Perlman, Stephen G.
출원인 / 주소
REARDEN, LLC
대리인 / 주소
Nicholson De Vos Webster & Elliott LLP
인용정보
피인용 횟수 :
161인용 특허 :
92
초록▼
A system and methods are described which compensate for the adverse effect of Doppler on the performance of DIDO systems. One embodiment of such a system employs different selection algorithms to adaptively adjust the active BTSs to different UEs based by tracking the changing channel conditions. An
A system and methods are described which compensate for the adverse effect of Doppler on the performance of DIDO systems. One embodiment of such a system employs different selection algorithms to adaptively adjust the active BTSs to different UEs based by tracking the changing channel conditions. Another embodiment utilizes channel prediction to estimate the future CSI or DIDO precoding weights, thereby eliminating errors due to outdated CSI.
대표청구항▼
1. A multiuser (MU) multiple antenna system (MAS) comprising: one or more centralized units communicatively coupled to multiple distributed transceiver stations or antennas via a network;the network comprising wireline or wireless links or a combination of both, employed as a backhaul communication
1. A multiuser (MU) multiple antenna system (MAS) comprising: one or more centralized units communicatively coupled to multiple distributed transceiver stations or antennas via a network;the network comprising wireline or wireless links or a combination of both, employed as a backhaul communication channel;the one or more centralized units communicating with the distributed transceiver stations or antennas over the network to adaptively reconfigure communications between the distributed transceiver stations or antennas and users to compensate for Doppler effects due to user mobility or changes in the propagation environment;wherein the MU-MAS system comprises one or more sets of user equipment (UE), base transceiver stations (BTSs), controllers (CTRs), centralized processors (CPs) and base station networks (BSNs); andwherein the CP adaptively selects the BTSs to be used for low- or high-mobility UEs based on latency over the BSN. 2. The system as in claim 1 employing distributed antennas that exploits spatial, polarization and/or pattern diversity to enhance data rate and/or coverage to one or multiple users in wireless systems. 3. The system as in claim 1 wherein the UEs are located around or in between the distributed antennas or surrounded by the distributed antennas. 4. The system as in claim 1 wherein MU-MAS employs complex weights at the receiver of the uplink channel to demodulate independent streams (e.g. data or CSI) from the UEs. 5. The system as in claim 4 wherein the complex weights of the uplink receiver are derived from the downlink precoding weights or computed via maximum ratio combining receiver. 6. The system as in claim 1 wherein the CP and the BTSs are equipped with encoders/decoders to compress/decompress information exchanged among them over the BSN. 7. The system in claim 6 wherein the precoded baseband data streams are compressed, before being transmitted from/to the BTS to/from the MU-MAS distributed antennas, to reduce overhead over the BSN. 8. The system as in claim 1 wherein the adaptation is based on the type of high versus low data rate BSN, or QoS, or average traffic statistics (e.g., daytime or nighttime use of different networks), or instantaneous traffic statistics (e.g., temporary network congestions) over the BSN. 9. A method implemented within a multiuser (MU) multiple antenna system (MAS) to compensate for Doppler effects comprising, the MU-MAS system comprising at least one centralized unit communicatively coupled to multiple distributed base transceiver stations (BTSs) over a network, the method comprising: measuring Doppler velocity of a first mobile user relative to the plurality of BTSs; andthe centralized unit communicating with the BTSs over the network to adaptively reconfigure communications between the BTSs and users, wherein adaptively reconfiguring includes dynamically assigning the first mobile user to a first BTS of the plurality of BTSs or to a first set of BTSs based on the measured Doppler velocity for the first BTS relative to other BTSs. 10. The method as in claim 9 wherein if the first mobile user has a measured Doppler velocity which is relatively higher than a second mobile user, then dynamically assigning comprises assigning the first mobile user to a first BTS or to a first set of BTSs and assigning the second mobile user to a second BTS or to a second set of BTSs, the first BTS or the first set of BTSs having a relatively lower latency associated therewith than the second BTS or second set of BTSs. 11. The method as in claim 9 wherein the latency includes (a) time taken to transmit a first training signal from the first mobile user to a BTS, (b) round-trip delay over a base station network (BSN) connecting the BTSs to a centralized processor (CP), and (c) time taken buy the CP to process channel state information (CSI) for the wireless channel between the BTSs and the first mobile user, generate precoded data streams for the first mobile user based on the CSI, and schedule transmissions to different mobile users including the first user for the current transmission. 12. The method as in claim 11 wherein the latency further includes time taken to transmit a second training signal from the BTS to the first mobile user. 13. The method as in claim 9 wherein dynamically assigning further comprises assigning based on a combination of link quality of a communication channel between each BTS and the first mobile user and the measured Doppler velocity associated with each BTS with respect to the first user. 14. The method as in claim 13 wherein, for a given Doppler velocity, the BTS having the relatively higher link quality is selected. 15. The method as in claim 13 wherein for a given link quality, the BTS having the relatively lower Doppler velocity is selected. 16. The method as in claim 9 further comprising: estimating future complex channel coefficients based on past complex channel coefficients to compensate for the adverse effect of Doppler on communication between the BTSs and the first mobile user. 17. The method as in claim 16 wherein linear prediction is employed for estimation. 18. The method as in claim 9 wherein the first mobile user is dynamically assigned to the first BTS or a first set of BTSs based on both the Doppler velocity and channel state information (CSI) defining quality of communication channels between the mobile user and each of the BTSs within the plurality. 19. The method as in claim 18 further comprising: building a matrix of Doppler velocities and link qualities for each of the BTSs within the plurality with respect to the first mobile user; andselecting a BTS which has a Doppler velocity below a specified threshold and link quality above a specified threshold. 20. A multiuser (MU) multiple antenna system (MAS) to compensate for Doppler effects comprising: a plurality of base transceiver stations (BTSs);a network coupling the plurality of BTSs to at least one centralized processor (CP);a first mobile user establishing a communication link with each of the BTSs;the CP communicating with the BTSs over the network to adaptively reconfigure communications between the BTSs and users, wherein adaptively reconfiguring includes measuring Doppler velocity of a first mobile user relative to each of the BTSs and dynamically assigning the first mobile user to a first BTS of the plurality of BTSs based on the measured Doppler velocity for the first BTS relative to other BTSs. 21. The system as in claim 20 wherein if the first mobile user has a measured Doppler velocity which is relatively higher than a second mobile user, then dynamically assigning comprises assigning the first mobile user to a first BTS and assigning the second mobile user to a second BTS, the first BTS having a relatively lower latency associated therewith than the second BTS. 22. The system as in claim 20 wherein the latency includes (a) time taken to transmit a first training signal from the first mobile user to a BTS, (b) round-trip delay over a base station network (BSN) connecting the BTSs to a centralized processor (CP), and (c) time taken by the CP to process channel state information (CSI) for the wireless channel between the BTSs and the first mobile user, generate precoded data streams for the first mobile user based on the CSI, and schedule transmissions to different mobile users including the first user for the current transmission. 23. The system as in claim 22 wherein the latency further includes time taken to transmit a second training signal from the BTS to the first mobile user. 24. The system as in claim 20 wherein dynamically assigning further comprises assigning based on a combination of link quality of a communication channel between each BTS and the first mobile user and the measured Doppler velocity associated with each BTS with respect to the first user. 25. The system as in claim 24 wherein, for a given Doppler velocity, the BTS having the relatively higher link quality is selected. 26. The system as in claim 24 wherein for a given link quality, the BTS having the relatively lower Doppler velocity is selected. 27. The system as in claim 20 wherein the CP estimates future complex channel coefficients based on past complex channel coefficients to compensate for the adverse effect of Doppler on communication between the BTSs and the first mobile user. 28. The system as in claim 27 wherein linear prediction is employed for estimation. 29. The system as in claim 20 wherein the first mobile user is dynamically assigned to the first BTS based on both the Doppler Velocity and channel state information (CSI) defining quality of communication channels between the mobile user and each of the BTSs within the plurality. 30. The system as in claim 29 wherein the CP performs the additional operations of: building a matrix of Doppler velocities and link qualities for each of the BTSs within the plurality with respect to the first mobile user; andselecting a BTS which has a Doppler velocity below a specified threshold and link quality above a specified threshold. 31. A multiuser (MU) multiple antenna system (MAS) comprising: one or more centralized units communicatively coupled to multiple distributed transceiver stations or antennas via a network;the network comprising wireline or wireless links or a combination of both, employed as a backhaul communication channel;the one or more centralized units communicating with the distributed transceiver stations or antennas over the network to adaptively reconfigure communications between the distributed transceiver stations or antennas and users to compensate for Doppler effects due to user mobility or changes in the propagation environment;wherein the MU-MAS system comprises one or more sets of user equipment (UE), base transceiver stations (BTSs), controllers (CTRs), centralized processors (CPs) and base station networks (BSNs); andwherein the CP adaptively selects the BTSs to be used for low- or high-mobility UEs based on the Doppler velocities of every BTS-UE link. 32. The system as in claim 31 employing distributed antennas that exploits spatial, polarization and/or pattern diversity to enhance data rate and/or coverage to one or multiple users in wireless systems. 33. The system as in claim 31 wherein the UEs are located around or in between the distributed antennas or surrounded by the distributed antennas. 34. The system as in claim 31 wherein MU-MAS employs complex weights at the receiver of the uplink channel to demodulate independent streams (e.g. data or CSI) from the UEs. 35. The system as in claim 34 wherein the complex weights of the uplink receiver are derived from the downlink precoding weights or computed via maximum ratio combining receiver. 36. The system as in claim 31 wherein the CP and the BTSs are equipped with encoders/decoders to compress/decompress information exchanged among them over the BSN. 37. The system in claim 36 wherein the precoded baseband data streams are compressed, before being transmitted from/to the BTS to/from the MU-MAS distributed antennas, to reduce overhead over the BSN. 38. A multiuser (MU) multiple antenna system (MAS) comprising: one or more centralized units communicatively coupled to multiple distributed transceiver stations or antennas via a network;the network comprising wireline or wireless links or a combination of both, employed as a backhaul communication channel;the one or more centralized units communicating with the distributed transceiver stations or antennas over the network to adaptively reconfigure communications between the distributed transceiver stations or antennas and users to compensate for Doppler effects due to user mobility or changes in the propagation environment;wherein the MU-MAS system comprises one or more sets of user equipment (UE), base transceiver stations (BTSs), controllers (CTRs), centralized processors (CPs) and base station networks (BSNs); andwherein linear prediction is employed to estimate the CSI or MU-MAS precoding weights in the future, thereby eliminating the adverse effect of Doppler on the performance of the MU-MAS. 39. The system as in claim 38 wherein the linear prediction is employed in the time, frequency and/or space domains. 40. The system as in claim 38 employing distributed antennas that exploits spatial, polarization and/or pattern diversity to enhance data rate and/or coverage to one or multiple users in wireless systems. 41. The system as in claim 38 wherein the UEs are located around or in between the distributed antennas or surrounded by the distributed antennas. 42. The system as in claim 38 wherein MU-MAS employs complex weights at the receiver of the uplink channel to demodulate independent streams (e.g. data or CSI) from the UEs. 43. The system as in claim 42 wherein the complex weights of the uplink receiver are derived from the downlink precoding weights or computed via maximum ratio combining receiver. 44. The system as in claim 38 wherein the CP and the BTSs are equipped with encoders/decoders to compress/decompress information exchanged among them over the BSN. 45. The system in claim 44 wherein the precoded baseband data streams are compressed, before being transmitted from/to the BTS to/from the MU-MAS distributed antennas, to reduce overhead over the BSN.
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Gross, David; Lackey, Joshua; Levy, Donald E.; Piqueras Jover, Roger; Ramachandran, Jayaraman; Serban, Cristina, Method and apparatus for communications management in a neighborhood network.
Barnickel, Donald J.; Beattie, Jr., James Gordon; Liu, Ken; Barzegar, Farhad; Gerszberg, Irwin; Bogdan, Pamela A. M.; Pimm, Brandon; Willis, III, Thomas M.; Britz, David M.; Henry, Paul Shala; Bennett, Robert; Zarsky, Dorothy, Method and apparatus for controlling an unmanned aircraft.
Adriazola, Aldo; Fuchs, Mitchell Harvey; Henry, Paul Shala; Barnickel, Donald J; Barzegar, Farhad; Bennett, Robert; Gerszberg, Irwin; Willis, III, Thomas M., Method and apparatus for coupling an antenna to a device.
Henry, Paul Shala; Barnickel, Donald J; Barzegar, Farhad; Bennett, Robert; Gerszberg, Irwin; Willis, III, Thomas M., Method and apparatus for coupling an antenna to a device.
Henry, Paul Shala; Barnickel, Donald J; Barzegar, Farhad; Bennett, Robert; Gerszberg, Irwin; Willis, III, Thomas M., Method and apparatus for coupling an antenna to a device.
Liu, Ken; Barzegar, Farhad; Gerszberg, Irwin; Bogdan, Pamela A. M.; Barnickel, Donald J.; Pimm, Brandon; Willis, III, Thomas M.; Britz, David M.; Henry, Paul Shala; Bennett, Robert; Zarsky, Dorothy; Beattie, Jr., James Gordon, Method and apparatus for deploying equipment of a communication system.
Barzegar, Farhad; Henry, Paul Shala; Barnickel, Donald J; Bennett, Robert; Gerszberg, Irwin; Kafka, Henry; Willis, III, Thomas M., Method and apparatus for directing wireless signals.
Gerszberg, Irwin; Barzegar, Farhad; Fuchs, Mitchell Harvey; Medamana, John Babu, Method and apparatus for distributing content in a communication network.
Gross, David; Lackey, Joshua; Levy, Donald E.; Jover, Roger Piqueras; Ramachandran, Jayaraman; Serban, Cristina, Method and apparatus for distributing software.
Gross, David; Lackey, Joshua; Levy, Donald E.; Jover, Roger Piqueras; Ramachandran, Jayaraman; Serban, Cristina, Method and apparatus for encryption of communications over a network.
Bennett, Robert; Henry, Paul Shala; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for exchanging communication signals.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for exchanging communication signals.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for launching a wave mode that mitigates interference.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for launching a wave mode that mitigates interference.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for launching a wave mode that mitigates interference.
Fuchs, Mitchell Harvey; Bennett, Robert; Gerszberg, Irwin; Reichmann, Kenneth C., Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Willis, III, Thomas M.; Barnickel, Donald J., Method and apparatus for proximity sensing.
Barnickel, Donald J; Barzegar, Farhad; Bennett, Robert; Gerszberg, Irwin; Henry, Paul Shala; Willis, III, Thomas M., Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for responding to events affecting communications in a communication network.
Liu, Ken; Bogdan, Pamela A. M.; Gerszberg, Irwin; Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J.; Willis, III, Thomas M., Method and apparatus for tracking via a radio frequency identification device.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for transmitting electromagnetic waves.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for transmitting or receiving signals in a transportation system.
Gerszberg, Irwin; Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for use with a radio distributed antenna system.
Gerszberg, Irwin; Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for use with a radio distributed antenna system having a clock reference.
Gerszberg, Irwin; Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for use with a radio distributed antenna system having an in-band reference signal.
Gerszberg, Irwin; Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal.
Gerszberg, Irwin; Kafka, Henry; Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus for wireless communications to mitigate interference.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus that provides fault tolerance in a communication network.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Method and apparatus that provides fault tolerance in a communication network.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, Thomas M., Method and apparatus that provides fault tolerance in a communication network.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J.; Willis, III, Thomas M., Method and repeater for broadband distribution.
Henry, Paul Shala; Willis, III, Thomas M.; Barzegar, Farhad; Bennett, Robert; Gerszberg, Irwin; Barnickel, Donald J., Methods and apparatus for adjusting an operational characteristic of an antenna.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J.; Willis, III, Thomas M., Methods and apparatus for inducing a fundamental wave mode on a transmission medium.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Methods and apparatus for inducing a fundamental wave mode on a transmission medium.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J.; Willis, III, Thomas M., Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium.
Lubranski, Leon; Van Brakle, Tracy; Blandino, George; Gerszberg, Irwin, Methods, devices, and systems for load balancing between a plurality of waveguides.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Network termination and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Network termination and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Network termination and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Network termination and methods for use therewith.
Henry, Paul Shala; Gerszberg, Irwin; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Node device, repeater and methods for use therewith.
Henry, Paul Shala; Gerszberg, Irwin; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Node device, repeater and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Passive electrical coupling device and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Passive electrical coupling device and methods for use therewith.
Henry, Paul Shala; Taylor, William Scott; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J.; Willis, III, Thomas M., Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium.
Henry, Paul Shala; Gerszberg, Irwin; Bennett, Robert; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Radial antenna and methods for use therewith.
Barzegar, Farhad; Barnickel, Jr., Donald J.; Blandino, George; Gerszberg, Irwin; Henry, Paul Shala; Willis, III, Thomas M., Remote distributed antenna system.
Barzegar, Farhad; Barnickel, Jr., Donald J; Blandino, George; Gerszberg, Irwin; Henry, Paul Shala; Willis, III, Thomas M., Remote distributed antenna system.
Barzegar, Farhad; Barnickel, Jr., Donald J; Blandino, George; Gerszberg, Irwin; Henry, Paul Shala; Willis, III, Thomas M., Remote distributed antenna system.
Barzegar, Farhad; Henry, Paul Shala; Blandino, George; Gerszberg, Irwin; Barnickel, Donald J.; Willis, III, Thomas M., Remote distributed antenna system.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Repeater and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Repeater and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Repeater and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Repeater and methods for use therewith.
Bennett, Robert; Barnickel, Donald J; Barzegar, Farhad; Gerszberg, Irwin; Henry, Paul Shala; Willis, III, Thomas M., Surface-wave communications and methods thereof.
Bennett, Robert; Barnickel, Donald J; Barzegar, Farhad; Gerszberg, Irwin; Henry, Paul Shala; Willis, III, Thomas M., Surface-wave communications and methods thereof.
Anand, Sudeep Mirpadi; Bhat, Shrinivas Subramania; Saha, Anindya, System and method for mitigating co-channel interference in white space modems using interference aware techniques.
Gerszberg, Irwin; Barzegar, Farhad; Henry, Paul Shala; Bennett, Robert; Barnickel, Donald J; Willis, III, Thomas M., System for generating topology information and methods thereof.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Transmission device with channel equalization and control and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Transmission device with channel equalization and control and methods for use therewith.
Barzegar, Farhad; Gerszberg, Irwin; Bennett, Robert; Henry, Paul Shala, Transmission device with impairment compensation and methods for use therewith.
Barzegar, Farhad; Gerszberg, Irwin; Bennett, Robert; Henry, Paul Shala, Transmission device with impairment compensation and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J.; Willis, III, Thomas M., Transmission device with mode division multiplexing and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J.; Willis, III, Thomas M., Transmission device with mode division multiplexing and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Transmission device with mode division multiplexing and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J; Willis, III, Thomas M., Transmission device with mode division multiplexing and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Transmission medium and communication interfaces and methods for use therewith.
Bennett, Robert; Henry, Paul Shala; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Transmission medium and method for facilitating propagation of electromagnetic waves via a core.
Barzegar, Farhad; Barnickel, Donald J; Bennett, Robert; Gerszberg, Irwin; Henry, Paul Shala; Willis, III, Thomas M., Transmission medium and methods for use therewith.
Henry, Paul Shala; Taylor, William Scott; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration.
Henry, Paul Shala; Taylor, William Scott; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M., Transmission medium having multiple cores and methods for use therewith.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J; Willis, III, Thomas M.; Guntin, Ed, Waveguide system and methods for inducing a non-fundamental wave mode on a transmission medium.
Henry, Paul Shala; Bennett, Robert; Barzegar, Farhad; Gerszberg, Irwin; Barnickel, Donald J.; Willis, III, Thomas M.; Guntin, Ed, Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium.
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