WO2017082945A1 - Équipement d'utilisateur et nœuds b évolués pour la gestion d'interférences dans une agrégation de réseaux - Google Patents

Équipement d'utilisateur et nœuds b évolués pour la gestion d'interférences dans une agrégation de réseaux Download PDF

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Publication number
WO2017082945A1
WO2017082945A1 PCT/US2016/023412 US2016023412W WO2017082945A1 WO 2017082945 A1 WO2017082945 A1 WO 2017082945A1 US 2016023412 W US2016023412 W US 2016023412W WO 2017082945 A1 WO2017082945 A1 WO 2017082945A1
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WIPO (PCT)
Prior art keywords
radio
interference
wlan
enb
cellular
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PCT/US2016/023412
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English (en)
Inventor
Shadi Iskander
Ofer Hareuveni
Assi Jakoby
Ido Ouzieli
Alexander Sirotkin
Jerome Parron
Karim E. MORSY
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Intel IP Corporation
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Publication of WO2017082945A1 publication Critical patent/WO2017082945A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations

Definitions

  • the disclosure relates generally to network aggregation, and more specifically to User Equipment aggregate use of cellular data networks with other data access points.
  • LTE system 3rd Generation Partnership Project
  • End users access the LTE system using mobile electronic devices (known as “user equipment” or equivalently “UE”) including appropriate electronics and software modules to communicate according to standards set forth by 3GPP.
  • UE mobile electronic devices
  • FIG. 1 A is a simplified block diagram of a communication system.
  • FIG. 1 B is a simplified plot illustrating possible interference in the communication system of FIG. 1A.
  • FIG. 2 is a simplified flowchart illustrating a method of operating a UE of FIG. 1 A according to embodiments of the disclosure.
  • FIG. 3 is a simplified flowchart illustrating a method of operating an eNB of FIG. 1 A according to embodiments of the disclosure.
  • FIG. 4 is a simplified block diagram of an electronic device that may be used in embodiments of the disclosure.
  • FIG. 5 is a block diagram illustrating components, according to some example embodiments.
  • signals may represent a bus of signals, wherein the bus may have a variety of bit widths and the present disclosure may be implemented on any number of data signals including a single data signal.
  • the embodiments may be described in terms of a process that is depicted as a flowchart, a flow diagram, a structure diagram, a signaling diagram, or a block diagram. Although a flowchart or signaling diagram may describe operational acts as a sequential process, many of these acts can be performed in another sequence, in parallel, or substantially concurrently. In addition, the order of the acts may be re-arranged. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc. Furthermore, the methods disclosed herein may be implemented in hardware, software, or both. If implemented in software, the functions may be stored or transmitted as one or more computer- readable instructions (e.g., software code) on a computer-readable medium.
  • computer- readable instructions e.g., software code
  • Computer-readable media includes both computer storage media (i.e., non-transitory media) and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • Wireless mobile communication technology uses various standards and protocols governing communications between a base station and a wireless mobile device.
  • well-known standards include the 3rd Generation Partnership Project (3GPP) long term evolution (LTE), the Institute of Electrical and Electronics Engineers (IEEE) 802.16 standard (IEEE std. 802.16-2012, published August 17, 2012), which is commonly known to industry groups as worldwide interoperability for microwave access (WiMAX), and the IEEE 802.1 1 standard (IEEE std.
  • the base station can include Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node Bs (also commonly denoted as evolved Node Bs, enhanced Node Bs, eNodeBs, or eNBs) and/or Radio Network Controllers (RNCs) in an E-UTRAN, which communicate with a wireless communication device, also known as user equipment (UE).
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • Node Bs also commonly denoted as evolved Node Bs, enhanced Node Bs, eNodeBs, or eNBs
  • RNCs Radio Network Controllers
  • 3GPP has defined some in-device-coexistence methods (e.g., LTE Wi-Fi Link Aggregation (LWA), LTE-License Assisted Access (LAA), Radio Access
  • LWA LTE Wi-Fi Link Aggregation
  • LAA LTE-License Assisted Access
  • Radio Access e.g., Radio Access
  • RAN Controlled LTE Wireless Local Area Network (WLAN) Interworking (RWI), etc.).
  • LTE and WLAN radios are active simultaneously more frequently compared to legacy use-cases, where most of the time the UE was using either LTE or Wi-Fi separately for data transfer.
  • both cellular data communications e.g., LTE communications
  • other communications e.g., Wi-Fi
  • Interference between cellular (e.g., LTE) and other (e.g., Wi-Fi) radios can result, leading to degradation in signal quality and, hence, throughput.
  • Some of this interference may be UE specific where differences between UEs in mitigating interference are not known to the network (e.g., the eNB).
  • interference to WLAN and LTE communications may be caused by other sources, such as Bluetooth communications and digital clocks.
  • the network may enable LWA on a WLAN AP-LTE Cell combination that suffers from interference, leading to throughput degradation instead of the intended benefits of throughput boosting through WLAN-LTE aggregation.
  • RSSI Received Signal Strength Indicator
  • the 3GPP IDC solution (releases 1 1 and 12) set forth reporting that other radios are interfering with LTE frequencies without indicating whether the
  • the eNB lacks the necessary information to improve the WLAN parameters and/or improve load balancing or traffic steering/splitting.
  • An eNB that is informed of the interference could take actions to mitigate interference between LTE and WLAN to achieve the intended gains in throughput through LTE-WLAN aggregation.
  • Embodiments of the disclosure include UEs that report interferences between cellular communications (e.g., LTE communications) and other communications (e.g., Wi-Fi communications), and eNBs that take actions to mitigate the interference.
  • UEs that detect interference information between co-existing cellular (e.g., LTE) and other (e.g., WLAN) communications of the UEs, and eNBs that use the interference information to attempt to counter the interference indicated by the interference information.
  • methods of reporting interference information detected by UEs to eNBs are disclosed herein.
  • an apparatus for User Equipment including control circuitry configured to control a cellular data network radio configured to enable the UE to communicate over a cellular data network.
  • the control circuitry is also configured to control another communication radio configured to enable the UE to communicate over a Wireless Local Area Network (WLAN) network.
  • the control circuitry is further configured to communicate simultaneously over the cellular data network and the other network.
  • the control circuitry is also configured to at least one of detect or predict interference information indicating interference between communications of the cellular data network radio and communications of the other communication radio.
  • the control circuitry is further configured to cause the cellular data network radio to transmit the interference information to an evolved Node B (eNB).
  • eNB evolved Node B
  • an apparatus for an evolved Node B including at least one processor and at least one data storage device.
  • the data storage device is programmed with computer-readable instructions configured to instruct the at least one processor to control a cellular data network radio configured to enable the eNB to communicate with User Equipment (UE) through a cellular data network.
  • the computer-readable instructions are also configured to instruct the at least one processor to receive, from the cellular data network radio, interference information received from the UE, the interference information indicating interference between communications of a cellular data network radio of the UE and communications of a Wireless Local Area Network (WLAN) radio of the UE.
  • the computer-readable instructions are also configured to instruct the at least one processor to take action to attempt to counter the
  • interference indicated by the interference information if the interference indicated by the interference information exceeds one or more predetermined limits.
  • UE User Equipment
  • LTE long-term evolution
  • WLAN Wireless Local Area Network
  • control circuitry operably coupled tot eh LTE radio and the WLAN radio.
  • the LTE radio is configured to engage in cellular data communications with evolved Node Bs (eNBs) according to an LTE protocol.
  • eNBs evolved Node Bs
  • the WLAN radio is configured to engage in WLAN communications through at least one access point simultaneously with the cellular data communications.
  • the control circuitry is configured to determine in- band interference and blocking interference between the cellular data
  • the control circuitry is also configured to process commands received from at least one of the eNB or one of the at least one access points instructing the UE to take action to mitigate at least one of the in-band interference or the blocking interference, wherein the action to mitigate comprises at least one of: operate the LTE radio at a transmit power less than a maximum cellular transmit power to prevent blocking interference; or offload at least one of the LTE radio and the WLAN radio.
  • UE user equipment
  • UE refers to end-user wireless devices capable of communicating with eNBs of an LTE network.
  • UEs include cellular telephones, smart phones, tablet computers, personal digital assistants (PDAs), and other devices.
  • PDAs personal digital assistants
  • legacy LTE system refers to LTE systems built according to a legacy version of the 3GPP standards (e.g., releases 8- 12).
  • uplink refers to data flowing in a direction from a UE to an eNB. Also, as used herein, the term “uplink,” or equivalently “UL,” refers to data flowing in a direction from a UE to an eNB. Also, as used herein, the term “uplink,” or equivalently “UL,” refers to data flowing in a direction from a UE to an eNB. Also, as used herein, the term “uplink,” or equivalently “UL,” refers to data flowing in a direction from a UE to an eNB. Also, as used herein, the term “uplink,” or equivalently “UL,” refers to data flowing in a direction from a UE to an eNB. Also, as used herein, the term “uplink,” or equivalently “UL,” refers to data flowing in a direction from a UE to an eNB. Also, as used herein, the term “uplink,” or equivalently “UL,” refers to data flowing in a direction from a UE to an e
  • downlink refers to data flowing in a direction from an eNB to a UE.
  • radio refers to wireless transmitters, wireless receivers, or combinations thereof.
  • FIG. 1A is a simplified block diagram of a communication system 100.
  • the communication system 100 includes User Equipment (UE) 1 10 configured to communicate with an evolved Node B (eNB) 130 through at least one cellular data network 140 (sometimes referred to herein as “cellular network” 140) and with at least one access point 150 (sometimes referred to herein as “access point” 150) through at least one other communication network 160 (sometimes referred to herein as “other network” 160).
  • the UE 1 10 includes at least one cellular data network radio 1 14 (sometimes referred to herein as "cellular radio” 1 14) configured to enable the UE 1 10 to communicate with the eNB 130 through the cellular network 140.
  • the UE 1 10 also includes at least one other communication radio 1 16 (sometimes referred to herein as "other radio” 1 16) configured to enable the UE 1 10 to
  • the other radio 1 16 and the other network 160 may be configured for communication over unlicensed bands.
  • the UE 1 10 includes control circuitry 1 12 programmed to communicate (e.g. using the cellular radio 1 14 and the other radio 1 16) over the cellular network 140 and the other network 160 at the same time.
  • the UE 1 10 may be configured to receive downlink data from the eNB 130 through the cellular network 140 and the other network 160 simultaneously.
  • the communication system 100 may be capable of operating according to LWA, LAA, RAN controlled LTE WLAN Internetworking, other protocols, or combinations thereof.
  • the cellular network 140 includes an LTE network and the other network 160 includes a Wi-Fi (e.g., 802.1 1 ) network.
  • the control circuitry 1 12 is also programmed to at least one of detect and predict interference information 1 19 indicating interference between communications of the cellular radio 1 14 and communications of the other radio 1 16.
  • the control circuitry 1 12 is further programmed to transmit the interference information 1 19 to the eNB 130 with the cellular radio 1 14 through the cellular network 140.
  • the eNB 130 is configured to take action to attempt to counter the interference indicated by the interference information 1 19 if the interference indicated by the interference information 1 19 exceeds one or more predetermined limits.
  • the eNB 130 may be configured to exercise at least some control (e.g., traffic scheduling) over the other network 160 (e.g., on one of a discretionary basis and a mandatory basis on the part of the access point 150).
  • the eNB 130 may be configured to communicate with the access point 150 (e.g., through network communications such as networks operating according to the Xw application protocol (hereinafter Xw-AP)).
  • Xw-AP Xw application protocol
  • the eNB 130 and the access point 150 may be integrated into a single entity.
  • the eNB 130 may exercise control over the other network 160 indirectly through interaction with the UE 1 10.
  • the cellular network 140 includes an LTE network. Accordingly, the cellular radio 1 14 includes sufficient circuitry and antennas to communicate using prescribed frequencies and protocols of LTE networks, as will be apparent to those of ordinary skill in the art. In some embodiments, the cellular network 140 may also include other cellular networks. By way of non-limiting example, the cellular network 140 may also include a 3G network, a 2G network, a 1 G network, a WiMAX network, other cellular networks, or combinations thereof. In such embodiments, the cellular radio 1 14 includes sufficient circuitry and antennas to communicate using prescribed frequencies and protocols of such cellular data networks, as will be apparent to those of ordinary skill in the art.
  • the other network 160 may include a Wireless Local Area Network (WLAN) (e.g., Wi-Fi networks, Bluetooth networks, Zigbee networks, other wireless networks, or combinations thereof).
  • the other radio 1 16 may include a WLAN radio (e.g., a Wi-Fi radio, a Bluetooth radio, a Zigbee radio, other radios, or combinations thereof).
  • the access point 150 may include hardware configured to link the UE 1 10 to wired networks (e.g., Internet Protocol (IP) networks).
  • IP Internet Protocol
  • the access point 150 may be configured to communicate with the eNB 130 (e.g., through the Internet).
  • the control circuitry 1 12 includes at least one processor 1 17 (sometimes referred to herein as "processor” 1 17) operably coupled to at least one data storage device 1 18 (sometimes referred to herein as “storage” 1 18).
  • processor processor
  • storage data storage device
  • the storage 1 18 includes computer-readable instructions stored thereon.
  • the computer- readable instructions are configured to instruct the processor 1 17 to perform at least a portion of the operations the UE 1 10 is configured to perform.
  • the control circuitry 1 12 is programmed to perform at least a portion of the operations the UE 1 10 is configured to perform.
  • the storage 1 18 may include a volatile data storage device (e.g., Random Access Memory (RAM)), a non-volatile data storage device (e.g., Flash, solid state storage, removable, other computer-readable storage media (e.g., transitory and/or non-transitory), and combinations thereof.
  • the processor 1 17 may include a Central Processing Unit (CPU), a microcontroller, other programmable device, and combinations thereof. In some embodiments, the processor 1 17 may include at least a portion of the storage 1 18 integrated with the processor 1 17 in a single device. In some embodiments, the processor 1 17 may be configured to transfer computer-readable instructions stored in non-volatile data storage of the storage 1 18, and transfer the computer-readable instructions to volatile data storage of the storage 1 18 for execution.
  • control circuitry 1 12 is programmed to at least one of detect and predict interference information 1 19 indicating interference between communications of the cellular radio 1 14 and communications of the other radio 1 16. Interference between the communications of the cellular radio 1 14 and the communications of the other radio 1 16 may include interference of the
  • control circuitry 1 12 may be programmed to predict the interference information 1 19 using measurements taken on integration of the UE 1 10, measurements of isolation between antennas of the radios 1 14, 1 16, configurations of filters, and sensitivity of receivers to interference.
  • the UE 1 10 may take into consideration historical and/or real-time operational parameters to detect the interference information 1 19.
  • FIG. 1 B is a simplified plot 170 illustrating examples of possible
  • the plot 170 includes a plot of a transmit power 172 of the cellular radio 1 14 and a plot of a transmit/receive power 174 of the other radio 1 16 plotted against frequency.
  • One example of interference of the communications of the other radio 1 16 due to the communications of the cellular radio 1 14 includes blocking interference (indicated by arrow 178 in the plot 170).
  • Such blocking interference 178 can occur when the transmit power 172 of the cellular radio 1 14 (e.g., an LTE radio) exceeds a predetermined threshold power 176, and reception of the other radio 1 16 (e.g., a Wi-Fi radio, a Bluetooth radio, a Zigbee radio, other radios, or combinations thereof) is prevented ("blocked"). Blocking interference 178 may occur even if the other radio 1 16 applies baseband filtering.
  • the transmit power 172 of the cellular radio 1 14 e.g., an LTE radio
  • reception of the other radio 1 16 e.g., a Wi-Fi radio, a Bluetooth radio, a Zigbee radio, other radios, or combinations thereof
  • Blocking interference 178 may occur even if the other radio 1 16 applies baseband filtering.
  • the computer-readable instructions stored on the storage 1 18 are configured to instruct the processor 1 17 to determine a maximum cellular transmit power (e.g., the predetermined threshold power 176) of the cellular radio 1 14 to prevent blocking interference.
  • a maximum cellular transmit power e.g., the predetermined threshold power 176
  • the UE 1 10 may calculate, aggregating per receiver frequency, dynamic range, and bandwidth specifications, an LTE transmit power level (e.g., in units of decibel milliwatts (dBm)) that would induce the blocking interference.
  • the interference information 1 19 the UE 1 10 transmits to the eNB 130 may include data indicating the maximum cellular transmit power (e.g., string data that defines for each channel configured for measurements, the maximum cellular transmit power).
  • the eNB 130 may be informed of the maximum cellular transmit power of the cellular radio 1 14 to prevent blocking interference 178. The eNB 130 may then assess if transmission from the cellular radio 1 14 can maintain its expected performance while being limited to use transmit power which is below the determined maximum cellular transmit power limit.
  • Another example of interference of the communications of the other radio 1 16 due to the communications of the cellular radio 1 14 includes in-band
  • Such in-band interference 179 can occur as a result of in-band spurious energy within overlapped portions of overlapping spectral envelopes of the other radio 1 16 and the cellular radio 1 14.
  • a spectral envelope of an LTE transmission may induce in-band spurious energy in receivers of the other radio 1 16 of the UE, resulting in sensitivity degradation.
  • the computer-readable instructions stored on the storage 1 18 are configured to instruct the processor 1 17 to determine a predicted in- band interference level that the cellular radio 1 14 will induce on the other radio 1 16.
  • the UE 1 10 may calculate, per receiver frequency and bandwidth, an in-band interference level (e.g., in units of dBm) that an LTE radio of the cellular radio 1 14 will cause to receivers of the other radio 1 16.
  • the interference information 1 19 the UE 1 10 transmits to the eNB 130 may include data indicating the predicted in-band interference level. In this way, the eNB 130 may be informed of the in-band interference level.
  • the UE 1 10 reports to the eNB 130 a string indicating a Wi-Fi in-band interference level from LTE that indicates the in-band interference level of a Wi-Fi receiver of the other radio 1 16 resulting from in-band interference from the cellular radio 1 14.
  • the other radio is configured to communicate over a plurality of different channels, and the predicted in-band interference level includes a different predicted in-band interference level for each of the plurality of different channels.
  • the eNB 130 may then use the predicted in-band interference level to offset a Wi-Fi beacon received signal strength indicator (RSSI) value that the UE 1 10 reports, and use the result when estimating and comparing expected Wi-Fi performance of the UE 1 10 once LWA is established on a specific access point 150 or mobility set.
  • RSSI Wi-Fi beacon received signal strength indicator
  • Communications of the other radio 1 16 may similarly interfere with communications of the cellular radio 1 14 (i.e., blocking interference, in-band interference, or combinations thereof). Transmit power limitations of the other radio 1 16 (e.g., radio devices using unlicensed bands, such as Wi-Fi and Bluetooth), however, are typically lower than transmit power allowed for licensed use (e.g., transmit power of the cellular radio 1 14). Accordingly, interference from the other radio 1 16 may not cause blocking interference to the cellular radio 1 14 (i.e., transmit power limits of the other radio 1 16 are typically less than a blocking interference threshold for the cellular radio 1 14, such as an LTE radio).
  • a blocking interference threshold for the cellular radio 1 14, such as an LTE radio such as an LTE radio
  • the computer- readable instructions stored on the storage 1 18 may optionally be configured to instruct the processor 1 17 to report a blocking interference threshold for the cellular radio 1 14.
  • the computer-readable instructions stored on the storage 1 18 are configured to instruct the processor 1 17 to determine a maximum transmit power of the other radio 1 16 to prevent blocking interference.
  • the interference information 1 19 in such instances indicates the maximum transmit power to prevent blocking interference.
  • the computer-readable instructions stored on the storage 1 18 are configured to instruct the processor 1 17 to determine an expected in-band interference level that the at least one other communication radio will induce on the at least one cellular data network radio.
  • the computer-readable instructions may also be configured to instruct the processor 1 17 to compare the expected in- band interference level to an allowable in-band interference level to generate comparison information.
  • knowing the spectral emission of transmitters of the other radio 1 16, and design characteristics of receiving circuitry of the cellular radio 1 14 (e.g., receiving circuitry of an LTE radio) the UE 1 10 may calculate the expected in-band interference, and compare it to a margin allowed for by a link budget.
  • UE performance requirements may allow maximum LTE receiver sensitivity degradation to a level of 1 dB above a thermal-noise floor.
  • the interference information 1 19 the UE 1 10 transmits to the eNB 130 may include comparison information describing the comparison between the in-band interference, and the allowable margin.
  • the other radio 1 16 is configured to communicate over a plurality of different channels. In such embodiments, the UE may generate comparison information regarding comparisons of different in-band interference levels
  • the eNB 130 may use the comparison information to compare between available access points 150 and mobility sets.
  • the UE 1 10 may dynamically update the interference information 1 19 and transmit the updated interference information 1 19 to the eNB 130.
  • the UE 1 10 may dynamically update the interference information 1 19 and transmit the updated interference information 1 19 to the eNB 130 responsive to a triggering event (e.g., activation of the other radio 1 16, deactivation of the other radio 1 16, a change in operation of the other radio 1 16, etc.).
  • the UE 1 10 may be configured to report the interference information 1 19 to the eNB 130 if any of the interference metrics change, even without a request from the eNB 130.
  • the UE 1 10 may dynamically request to update the interference information based on current usage and calculation of overall performance impact due to active collocated radios. For example, such change may be a result of activation of a collocated radio device such as peer to peer Wi-Fi links, or a Bluetooth device that is paired to a hands-free peer when entering a car.
  • a collocated radio device such as peer to peer Wi-Fi links, or a Bluetooth device that is paired to a hands-free peer when entering a car.
  • the UE 1 10 may report the interference information 1 19 to the eNB 130 by adding the interference information 1 19 to a transmission that the UE 1 10 is already specified to transmit to the eNB 130 according to legacy LTE systems.
  • changes in future releases of the 3GPP standards could specify that already specified transmissions from the UE 1 10 to the eNB 130 could be expanded to include the interference information 1 19.
  • the interference information 1 19 could be transmitted to the eNB 130 in already specified measurement reports (e.g., a measResultl_istWLAN-r13 in measResultNeighCells).
  • the interference information 1 19 could be reported to the eNB 130 together with other Wi-Fi metrics, RSSI, station count, channel utilization, and other metrics.
  • the interference of one or more serving LTE frequencies and the reported access point 150 may be clearly mapped.
  • the interference information 1 19 may be transmitted to the eNB 130 in in-device coexistence indications (e.g., an
  • the interference information 1 19 may include not only information pertaining to a current serving LTE frequency, but also with neighboring LTE frequencies that the eNB 130 may decide to handover the UE 1 10 to. Also, the interference information 1 19 may be reported directly after configuration information is received from the eNB 130 (substantially no delay). Furthermore, the interference information 1 19 may indicate whether any of the interference metrics change, even without receiving a request from the eNB 130.
  • the interference information 1 19 could be transmitted to the eNB 130 in other measurement reports (e.g., MeasResults in MeasurementReport-r8-les).
  • the interference information 1 19 may pertain to a neighboring LTE frequency configured for this measurement identification with a currently active LWA Wi-Fi access point.
  • the interference information 1 19 may indicate a level of interference that is predicted to occur if the UE 1 10 switches to operate on the neighboring LTE frequency.
  • the interference information 1 19 could be transmitted to the eNB 130 in a WLAN connection status report message (e.g., a WLANConnectionStatusReport message).
  • the UE 1 10 could transmit the interference information even if the eNB 130 does not request the interference information 1 19 from the UE 1 10.
  • the eNB 130 includes at least one cellular data network radio 134
  • the eNB 130 also includes control circuitry 132 programmed to receive, from the UE 1 10 through the cellular network 140 with the cellular radio 1 14 from the UE 1 10, the interference information 1 19.
  • the control circuitry 132 may include at least one processor and at least one data storage device, similar to the processor 1 17 and the storage 1 18 discussed above. A detailed example of the control circuitry 132 is discussed with reference to FIG. 5. [0049] As previously discussed, the interference information 1 19 indicates interference, other coexistence metrics, or combinations thereof, between
  • the control circuitry 132 is also programmed to take action to attempt to counter the interference indicated by the interference information 1 19. In some embodiments, the control circuitry 132 is only programmed to take action to counter the interference if the interference indicated by the interference information 1 19 exceeds one or more predetermined limits.
  • the eNB 130 may be programmed to take various different actions in response to the interference information 1 19. In some embodiments, the eNB 130 may influence UE 1 10 decisions of access point 150 selection. In some
  • the eNB 130 may make a decision to move a UE 1 10 between different access points 150. Also, the eNB 130 may make a decision to move the UE 1 10 between different LTE frequencies. By way of non-limiting example, the eNB 130 may instruct the UE 1 10 to modify the WLAN mobility set configured in the UE 1 10 to exclude access points 150 that are subject to IDC interference.
  • the eNB 130 may attempt to offload at least one of the cellular radio 1 14 communications and other radio 1 16 communications. Offload may be complete offload (e.g., LWA with all bearers switched to WLAN or LTE, RAN-controlled LTE-WLAN interworking, S2b, or any other CN-based WLAN offload mechanism) or partial offload (e.g., LWA bearer split configuration).
  • complete offload e.g., LWA with all bearers switched to WLAN or LTE, RAN-controlled LTE-WLAN interworking, S2b, or any other CN-based WLAN offload mechanism
  • partial offload e.g., LWA bearer split configuration
  • the eNB 130 uses the interference information 1 19 to balance the load between WLAN and LTE.
  • the load balancing can be done using LWA or WLAN offload (e.g., S2b in contrast to LWA).
  • LWA Low-area network
  • WLAN offload e.g., S2b in contrast to LWA
  • the eNB 130 may move certain UEs to Wi-Fi (offloading) or to LTE completely.
  • the eNB 130 may indicate to an access point 150 (e.g., through a WT) that it is subject to an IDC via an Xw-C interface, so that the access point 150 may select a different channel/frequency.
  • an Xw-AP eNB configuration update message can be enhanced for this or a new Xw-AP message may be defined for this purpose.
  • the eNB 130 may transmit a request to an access point 150 in communication with the other radio 1 16 of the UE 1 10 if the interference indicated by the interference information 1 19 exceeds one or more predetermined limits.
  • This request may include a request that the other radio 1 16 switch to communication with another access point 150.
  • the request may also include a request that the access point 150 be subject to IDC via the Xw-C interface to enable the access point 450 to select at least one of a different channel and a different frequency with which to communicate with the other radio 1 16.
  • the access point 150 may accept, reject, or defer to fulfill the request at a different time.
  • the Xw-AP may be modified to expand already existing messages from the eNB 130 to the access point 150 to include the request, or the Xw-AP could be modified to allow for a new message including the request.
  • the interference information 1 19 may indicate interference incurred on LTE and Wi-Fi communications of the UE 1 10 at current transmit powers.
  • the eNB 130 may change a traffic steering ratio between the Wi-Fi and the LTE based, at least in part, on this interference information 1 19.
  • the eNB 130 uses the interference information 1 19 to control a traffic split ratio between WLAN and LTE for split LWA bearers.
  • the interference information 1 19 may indicate a maximum cellular transmit power of the cellular radio 1 14 (e.g., an LTE radio) of the UE 1 10 to prevent blocking interference to the other radio 1 16 of the UE 1 10 (or a maximum other transmit power of the other radio 1 16 to prevent blocking
  • control circuitry 132 may be further programmed to determine whether the cellular communications of the UE 1 10 can maintain adequate performance while operating under the maximum cellular transmit power. Also, the control circuitry 132 may be programmed to transmit a Transmit Power Control command to the UE 1 10 instructing the UE 1 10 to limit a transmit power of the cellular radio 1 14 to the maximum cellular transmit power responsive to a determination that the UE 1 10 can maintain adequate performance while operating under the maximum cellular transmit power.
  • the eNB 130 may take into consideration the maximum cellular transmit power while configuring maximum transmission power.
  • the interference information 1 19 may indicate a predicted in-band interference level that the cellular radio 1 14 of the UE 1 10 will induce on the other radio 1 16 of the UE 1 10.
  • the control circuitry 132 may be programmed to offset Received Signal Strength Indicators (RSSIs) received by the eNB 130 from the UE 1 10 with the predicted in-band interference level when estimating and comparing expected Wi-Fi performance of the UE 1 10 once LWA is established on a specific access point 150 or mobility set.
  • RSSIs Received Signal Strength Indicators
  • the interference information 1 19 may indicate an expected in-band interference level that the other radio 1 16 of the UE 1 10 will induce on the cellular radio 1 14 of the UE 1 10.
  • the control circuitry 132 may be programmed to use the expected in-band interference level to compare available access points and mobility sets for the other radio 1 16 of the UE 1 10.
  • the eNB 130 may use the interference information 1 19 provided by the UE 1 10 to at least one of activate and deactivate coexistence features of the cellular radio 1 14 and the other radio 1 16 (e.g., LWA).
  • the eNB 130 may transmit a command to the UE 1 10 instructing the UE 1 10 to cease operating the cellular radio 1 14 of the UE 1 10 and the other radio 1 16 simultaneously.
  • the eNB 130 may transmit a command instructing the UE 130 to deactivate the coexistence features if the interference indicated by the interference information 1 19 exceeds one or more predetermined limits.
  • the eNB 130 uses the interference information 1 19 to select access points 150 and WT for the UE 1 10 to connect to during LWA activation (i.e., modify WLAN mobility set) and mobility.
  • the eNB 130 uses the interference information 1 19 to at least one of activate and deactivate secondary LTE carriers when LWA is activated.
  • the eNB 130 uses the interference information 1 19 to optimize the WLAN configurations for maximizing spectral efficiency (e.g., change the channel of an access point 150 to minimize interference with LTE).
  • the eNB 130 may instruct the UE 1 10 to use a different access point 150 (e.g., if the interference indicated by the interference information 1 19 is not acceptable).
  • FIG. 2 is a simplified flowchart illustrating a method 200 of operating the UE 1 10 of FIG. 1 A according to embodiments of the disclosure.
  • the method 200 includes operating 210 a cellular radio 1 14 and another radio 1 16 of the UE 1 10 simultaneously.
  • the method also includes at least one of predicting and measuring 220 interference between the cellular radio 1 14 and the other radio 1 16.
  • the method 200 further includes transmitting 230 interference information 1 19 indicating the interference to the eNB 130.
  • FIG. 3 is a simplified flowchart illustrating a method 300 of operating the eNB 130 of FIG. 1A according to embodiments of the disclosure.
  • the method includes receiving interference information 1 19 indicating interference between the cellular radio 1 14 and the other radio 1 16 of the UE 1 10 from the UE 1 10.
  • the method 300 also includes taking action 320 to counter the interference indicated by the interference information 1 19.
  • FIG. 4 is a simplified block diagram of an electronic device 400 that may be used in embodiments of the disclosure.
  • the UE 1 10 and the eNB 130 of FIG. 1A may each include at least a portion of the features that will be discussed with reference to the electronic device 400.
  • the term "circuitry" may refer to, be part of, or include an Application Specific
  • ASIC Integrated Circuit
  • ASIC Integrated Circuit
  • an electronic circuit a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group) that execute one or
  • circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • circuitry may include logic, at least partially operable in hardware.
  • FIG. 4 illustrates, for one embodiment, example components of the electronic device 400.
  • the electronic device 400 may be a user equipment (UE), an evolved Node B (eNB), or some other electronic device.
  • the electronic device 400 may include application circuitry 402, baseband circuitry 404, Radio Frequency (RF) circuitry 406, front-end module (FEM) circuitry 408 and one or more antennas 410, coupled together at least as shown in FIG. 4.
  • RF Radio Frequency
  • FEM front-end module
  • the application circuitry 402 may include one or more application processors.
  • the application circuitry 402 may include one or more single-core or multi-core processors.
  • the processor(s) may include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application processors, etc.).
  • the processor(s) may be operably coupled and/or include memory/storage, and may be configured to execute instructions stored in the memory/storage to enable various applications
  • the baseband circuitry 404 may include one or more single-core or multi-core processors.
  • the baseband circuitry 404 may include one or more baseband processors and/or control logic.
  • the baseband circuitry 404 may be configured to process baseband signals received from a receive signal path of the RF circuitry 406.
  • the baseband 404 may also be configured to generate baseband signals for a transmit signal path of the RF circuitry 406.
  • the baseband processing circuitry 404 may interface with the application circuitry 402 for generation and processing of the baseband signals, and for controlling operations of the RF circuitry 406.
  • the baseband circuitry 404 may include at least one of a second generation (2G) baseband processor 404A, a third generation (3G) baseband processor 404B, a fourth generation (4G) baseband processor 404C, other baseband processor(s) 404D for other existing generations, and generations in development or to be developed in the future (e.g., fifth generation (5G), 6G, etc.).
  • the baseband circuitry 404 e.g., at least one of baseband processors 404A-404D
  • the radio control functions may include signal modulation/demodulation,
  • modulation/demodulation circuitry of the baseband circuitry 404 may be programmed to perform Fast-Fourier Transform (FFT), precoding, constellation mapping/demapping functions, other functions, and combinations thereof.
  • FFT Fast-Fourier Transform
  • encoding/decoding circuitry of the baseband circuitry 404 may be programmed to perform convolutions, tail-biting convolutions, turbo, Viterbi, Low Density Parity Check (LDPC) encoder/decoder functions, other functions, and combinations thereof.
  • FFT Fast-Fourier Transform
  • encoding/decoding circuitry of the baseband circuitry 404 may be programmed to perform convolutions, tail-biting convolutions, turbo, Viterbi, Low Density Parity Check (LDPC) encoder/decoder functions, other functions, and combinations thereof.
  • LDPC Low Density Parity Check
  • the baseband circuitry 404 may include elements of a protocol stack such as, for example, elements of an evolved universal terrestrial radio access network (EUTRAN) protocol including, for example, physical (PHY), media access control (MAC), radio link control (RLC) 206, packet data convergence protocol (PDCP) 204, and/or radio resource control (RRC) elements.
  • EUTRAN evolved universal terrestrial radio access network
  • a central processing unit (CPU) 404E of the baseband circuitry 404 may be programmed to run elements of the protocol stack for signaling of the PHY, MAC, RLC, PDCP and/or RRC layers.
  • the baseband circuitry 404 may include one or more audio digital signal processor(s) (DSP) 404F.
  • the audio DSP(s) 404F may include elements for compression/decompression and echo cancellation.
  • the audio DSP(s) 404F may also include other suitable processing elements.
  • the baseband circuitry 404 may further include memory/storage 404G.
  • the memory/storage 404G may include data and/or instructions for operations performed by the processors of the baseband circuitry 404 stored thereon.
  • the memory/storage 404G may include any combination of suitable volatile memory and/or non-volatile memory.
  • the memory/storage 404G may also include any combination of various levels of memory/storage including, but not limited to, read-only memory (ROM) having embedded software instructions (e.g., firmware), random access memory (e.g., dynamic random access memory (DRAM)), cache, buffers, etc.
  • ROM read-only memory
  • DRAM dynamic random access memory
  • cache buffers, etc.
  • the memory/storage 404G may be shared among the various processors or dedicated to particular processors.
  • Components of the baseband circuitry 404 may be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some
  • some or all of the constituent components of the baseband circuitry 404 and the application circuitry 402 may be
  • SOC system on a chip
  • the baseband circuitry 404 may provide for communication compatible with one or more radio technologies.
  • the baseband circuitry 404 may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), and/or a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • multi-mode baseband circuitry Embodiments in which the baseband circuitry 404 is configured to support radio communications of more than one wireless protocol.
  • the RF circuitry 406 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • the RF circuitry 406 may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • the RF circuitry 406 may include a receive signal path which may include circuitry to down-convert RF signals received from the FEM circuitry 408, and provide baseband signals to the baseband circuitry 404.
  • the RF circuitry 406 may also include a transmit signal path which may include circuitry to up-convert baseband signals provided by the baseband circuitry 404, and provide RF output signals to the FEM circuitry 408 for
  • the RF circuitry 406 may include a receive signal path and a transmit signal path.
  • the receive signal path of the RF circuitry 406 may include mixer circuitry 406A, amplifier circuitry 406B and filter circuitry 406C.
  • the transmit signal path of the RF circuitry 406 may include filter circuitry 406C and mixer circuitry 406A.
  • the RF circuitry 406 may further include synthesizer circuitry 406D configured to synthesize a frequency for use by the mixer circuitry 406A of the receive signal path and the transmit signal path.
  • the mixer circuitry 406A of the receive signal path may be configured to down-convert RF signals received from the FEM circuitry 408 based on the synthesized frequency provided by synthesizer circuitry 406D.
  • the amplifier circuitry 406B may be configured to amplify the down-converted signals.
  • the filter circuitry 406C may include a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals.
  • LPF low-pass filter
  • BPF band-pass filter
  • Output baseband signals may be provided to the baseband circuitry 404 for further processing.
  • the output baseband signals may include zero-frequency baseband signals.
  • the mixer circuitry 406A of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect.
  • the mixer circuitry 406A of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry 406D to generate RF output signals for the FEM circuitry 408.
  • the baseband signals may be provided by the baseband circuitry 404 and may be filtered by filter circuitry 406C.
  • the filter circuitry 406C may include a low-pass filter (LPF), although the scope of the embodiments is not limited in this respect.
  • the mixer circuitry 406A of the receive signal path and the mixer circuitry 406A of the transmit signal path may include two or more mixers, and may be arranged for quadrature downconversion and/or upconversion, respectively.
  • the mixer circuitry 406A of the receive signal path and the mixer circuitry 406A of the transmit signal path may include two or more mixers and may be arranged for image rejection (e.g., Hartley image rejection).
  • the mixer circuitry 406A of the receive signal path and the mixer circuitry 406A may be arranged for direct downconversion and/or direct
  • the mixer circuitry 406A of the receive signal path and the mixer circuitry 406A of the transmit signal path may be configured for super-heterodyne operation.
  • the output baseband signals and the input baseband signals may be analog baseband signals, although the scope of the embodiments is not limited in this respect.
  • the output baseband signals and the input baseband signals may be digital baseband signals.
  • the RF circuitry 406 may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry
  • the baseband circuitry 404 may include a digital baseband interface to communicate with the RF circuitry 406.
  • separate radio IC circuitry may be provided for processing signals for each spectrum, although the scope of the embodiments is not limited in this respect.
  • the synthesizer circuitry 406D may include one or more of a fractional-N synthesizer and a fractional N/N+1 synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable.
  • synthesizer circuitry 406D may include a delta-sigma synthesizer, a frequency multiplier, a synthesizer comprising a phase- locked loop with a frequency divider, other synthesizers and combinations thereof.
  • the synthesizer circuitry 406D may be configured to synthesize an output frequency for use by the mixer circuitry 406A of the RF circuitry 406 based on a frequency input and a divider control input. In some embodiments, the synthesizer circuitry 406D may be a fractional N/N+1 synthesizer.
  • frequency input may be provided by a voltage controlled oscillator (VCO).
  • VCO voltage controlled oscillator
  • Divider control input may be provided by either the baseband circuitry 404 or the application circuitry 402 (e.g., an applications processor) depending on the desired output frequency.
  • a divider control input e.g., N
  • N may be determined from a look-up table based on a channel indicated by the application circuitry 402.
  • Synthesizer circuitry 406D of the RF circuitry 406 may include a divider, a delay-locked loop (DLL), a multiplexer and a phase accumulator.
  • DLL delay-locked loop
  • the divider may include a dual modulus divider (DMD), and the phase accumulator may include a digital phase accumulator (DPA).
  • the DMD may be configured to divide the input signal by either N or N+1 (e.g., based on a carry out) to provide a fractional division ratio.
  • the DLL may include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip-flop.
  • the delay elements may be configured to break a VCO period up into Nd equal packets of phase, where Nd is the number of delay elements in the delay line. In this way, the DLL may provide negative feedback to help ensure that the total delay through the delay line is one VCO cycle.
  • synthesizer circuitry 406D may be configured to generate a carrier frequency as the output frequency.
  • the output frequency may be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency, etc.) and used in conjunction with a quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other.
  • the output frequency may be a LO frequency (fLO).
  • the RF circuitry 406 may include an IQ/polar converter.
  • FEM circuitry 408 may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas 410, amplify the received signals, and provide the amplified versions of the received signals to the RF circuitry 406 for further processing.
  • the FEM circuitry 408 may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by the RF circuitry 406 for transmission by at least one of the one or more antennas 410.
  • the FEM circuitry 408 may include a TX/RX switch configured to switch between a transmit mode and a receive mode operation.
  • the FEM circuitry 408 may include a receive signal path and a transmit signal path.
  • the receive signal path of the FEM circuitry 408 may include a low-noise amplifier (LNA) to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry 406).
  • LNA low-noise amplifier
  • the transmit signal path of the FEM circuitry 408 may include a power amplifier (PA) configured to amplify input RF signals (e.g., provided by RF circuitry 406), and one or more filters configured to generate RF signals for subsequent transmission (e.g., by one or more of the one or more antennas 410).
  • PA power amplifier
  • the electronic device 400 may include additional elements such as, for example, memory/storage, a display, a camera, one of more sensors, an input/output (I/O) interface, other elements, and combinations thereof.
  • additional elements such as, for example, memory/storage, a display, a camera, one of more sensors, an input/output (I/O) interface, other elements, and combinations thereof.
  • the electronic device 400 may be configured to perform one or more processes, techniques, and/or methods as described herein, or portions thereof.
  • FIG. 5 is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium (e.g., a machine-readable storage medium) and perform any one or more of the methodologies discussed herein.
  • FIG. 5 shows a diagrammatic representation of hardware resources 500 including one or more processors (or processor cores) 510, one or more memory/storage devices 520, and one or more communication resources 530, each of which are communicatively coupled via a bus 540.
  • the processors 510 may include, for example, a processor 512 and a processor 514.
  • the memory/storage devices 520 may include main memory, disk storage, or any suitable combination thereof.
  • the communication resources 530 may include interconnection and/or network interface components or other suitable devices to communicate with one or more peripheral devices 504 and/or one or more databases 506 via a network 508.
  • the communication resources 530 may include wired communication components (e.g., for coupling via a Universal Serial Bus (USB)), cellular
  • NFC Near Field Communication
  • Bluetooth® components e.g., Bluetooth® Low Energy
  • Wi-Fi® components and other communication components.
  • Instructions 550 may comprise software, a program, an application, an applet, an app, or other executable code for causing at least any of the processors 510 to perform any one or more of the methodologies discussed herein.
  • the instructions 550 may reside, completely or partially, within at least one of the processors 510 (e.g., within the processor's cache memory), the memory/storage devices 520, or any suitable combination thereof.
  • any portion of the instructions 550 may be transferred to the hardware resources 500 from any combination of the peripheral devices 504 and/or the databases 506.
  • the memory of processors 510, the memory/storage devices 520, the peripheral devices 504, and the databases 506 are examples of computer-readable and machine-readable media.
  • Example 1 An apparatus for User Equipment (UE), comprising: control circuitry configured to: control a cellular data network radio configured to enable the UE to communicate over a cellular data network; control another communication radio configured to enable the UE to communicate over a Wireless Local Area Network (WLAN); communicate simultaneously over the cellular data network and the WLAN; at least one of detect or predict interference information indicating interference between communications of the cellular data network radio and communications of the other communication radio; and cause the cellular data network radio to transmit the interference information to an evolved Node B (eNB).
  • eNB evolved Node B
  • Example 2 The apparatus of Example 1 , the control circuitry is further configured to determine a maximum cellular transmit power of the cellular data network radio to prevent blocking interference, and the interference information indicates the maximum cellular transmit power to prevent blocking interference.
  • Example 3 The apparatus according to any one of Examples 1 and 2, wherein the control circuitry is further configured to determine a predicted in-band interference level that the cellular data network radio will induce on the other communication radio, and the interface information indicates the predicted in-band interference level.
  • Example 4 The apparatus of Example 3, wherein the other
  • the communication radio is configured to communicate over a plurality of different channels, and the predicted in-band interference level includes a different predicted in-band interference level for each of the plurality of different channels.
  • Example 5 The apparatus according to any one of Examples 1 -4, wherein the control circuitry includes baseband circuitry configured to determine an expected in-band interference level that the other communication radio will induce on the cellular data network radio, and compare the expected in-band interference level to an allowable in-band interference level to generate comparison information, and the interface information includes the comparison information.
  • the control circuitry includes baseband circuitry configured to determine an expected in-band interference level that the other communication radio will induce on the cellular data network radio, and compare the expected in-band interference level to an allowable in-band interference level to generate comparison information, and the interface information includes the comparison information.
  • Example 6 The apparatus of Example 5, wherein: the communication radio is configured to communicate over a plurality of different channels; and the comparison information includes information regarding comparisons of different in- band interference levels corresponding to the plurality of different channels to the allowable in-band interference level.
  • Example 7 The apparatus according to any one of Examples 1 -6, wherein the control circuitry is further configured to determine a maximum other transmit power of the other communication radio to prevent blocking interference; and the interference information indicates the maximum other transmit power to prevent blocking interference.
  • Example 8 The apparatus of according to any one of Examples 1 -7, wherein the control circuitry is further configured to dynamically update the interference information and transmit updated interference information to the eNB.
  • Example 9 The apparatus of Example 8, wherein the control circuitry is further configured to dynamically update the interference information and transmit updated interference information to the eNB responsive to a triggering event.
  • Example 10 The apparatus of Example 9, wherein the triggering event comprises one or more events selected from the group consisting of activation of the other communication radio, deactivation of the other communication radio, and a change in operation of the other communication radio.
  • Example 1 1 The apparatus according to any one of Examples 1 -10, wherein the control circuitry is further configured to cause the interference
  • Example 12 The apparatus according to any one of Examples 1 -10, wherein the control circuitry is further configured to cause the interference
  • Example 13 The apparatus according to any one of Examples 1 -10, wherein the control circuitry is further configured to cause the interference
  • Example 14 The apparatus according to any one of Examples 1 -13, wherein the cellular data network radio comprises a long-term evolution (LTE) network radio.
  • LTE long-term evolution
  • Example 15 The apparatus according to any one of Examples 1 -13, wherein the cellular data network radio comprises at least one network radio selected from a 3G network radio, a 2G network radio, or a WiMAX network radio.
  • Example 16 An apparatus for an evolved Node B (eNB), comprising: control circuitry comprising: at least one processor; and at least one data storage device programmed with computer-readable instructions configured to instruct the at least one processor to: control a cellular data network radio configured to enable the eNB to communicate with User Equipment (UE) through a cellular data network; receive, from the cellular data network radio, interference information received from the UE, the interference information indicating interference between communications of a cellular data network radio of the UE and communications of a Wireless Local Area Network (WLAN) radio of the UE; and take action to attempt to counter the interference indicated by the interference information if the interference indicated by the interference information exceeds one or more predetermined limits.
  • UE User Equipment
  • WLAN Wireless Local Area Network
  • Example 17 The apparatus of Example 16, wherein: the interference information indicates a maximum cellular transmit power of the cellular data network radio of the UE to prevent blocking interference to the WLAN radio of the UE; and the control circuitry is further programmed to determine whether the cellular data network radio of the UE can maintain adequate performance while operating under the maximum cellular transmit power.
  • Example 18 The apparatus of Example 17, wherein the control circuitry is further programmed to cause a Transmit Power Control command to be transmitted to the UE instructing the UE to limit a cellular transmit power of the cellular data network radio to the maximum cellular transmit power responsive to a determination that the UE can maintain adequate performance while operating under the maximum cellular transmit power.
  • Example 19 The apparatus according to any one of Examples 16-18, wherein: the interference information indicates a predicted in-band interference level that the cellular data network radio of the UE will induce on the WLAN radio of the UE; and the control circuitry is further programmed to offset Received Signal Strength Indicators (RSSIs) received by the eNB from the UE with the predicted in band interference level.
  • RSSIs Received Signal Strength Indicators
  • Example 20 The apparatus according to any one of Examples 16-19, wherein: the interference information indicates an expected in-band interference level that the WLAN radio of the UE will induce on the cellular data network radio of the UE; and the control circuitry is further programmed to use the expected in-band interference level to compare available access points and mobility sets for the WLAN radio.
  • Example 21 The apparatus according to any one of Examples 16-20, wherein the control circuitry is programmed to attempt to offload at least one of the cellular data network radio communications of the UE or the WLAN radio
  • the offload comprises one of complete offload or partial offload.
  • Example 22 The apparatus according to any one of Examples 16-21 , wherein the control circuitry is programmed to cause a command to be transmitted to the UE instructing the UE to cease operating the cellular data network radio of the UE and the WLAN radio of the UE simultaneously if the interference indicated by the interference information exceeds the one or more predetermined limits.
  • Example 23 The apparatus according to any one of Examples 16-21 , wherein the control circuitry is programmed to cause a request to be transmitted to an access point in communication with the WLAN radio of the UE if the interference indicated by the interference information exceeds the one or more predetermined limits, wherein the request includes at least one of: a request that the WLAN radio switch to communication with another access point; or a request that the access point select at least one of a different channel and a different frequency with which to communicate with the WLAN radio.
  • Example 24 User Equipment (UE), comprising: a long-term evolution (LTE) radio configured to engage in cellular data communications with evolved Node Bs (eNBs) according to an LTE protocol; a Wireless Local Area Network (WLAN) radio configured to engage in WLAN communications through at least one access point simultaneously with the cellular data communications; and control circuitry operably coupled to the LTE radio and the WLAN radio and configured to: determine in-band interference and blocking interference between the cellular data
  • LTE long-term evolution
  • eNBs evolved Node Bs
  • WLAN Wireless Local Area Network
  • the communications of the LTE radio and the WLAN communications of the WLAN radio cause to be transmitted, through the LTE radio, interference information indicating at least the in-band interference and the blocking interference to an eNB; and process commands received from at least one of the eNB and one of the at least one access points instructing the UE to take action to mitigate at least one of the in-band interference and the blocking interference, wherein the action to mitigate comprises at least one of: operate the LTE radio at a transmit power less than a maximum cellular transmit power to prevent blocking interference; and offload at least one of the LTE radio and the WLAN radio.
  • Example 25 The UE of Example 24, wherein the control circuitry is further configured to cause the interference information to be transmitted to the eNB in a WLAN Connection Status Report message.
  • Example 26 A method of operating User Equipment (UE), the method comprising: communicating with an eNB over at least one cellular data network using at least one cellular data network radio; communicating over at least one Wireless Local Area Network (WLAN) using at least one other communication radio at the same time as communicating with the evolved Node B (eNB); at least one of detecting and predicting interference information indicating interference between communications of the at least one cellular data network radio and communications of the at least one other communication radio; and transmitting the interference information to the eNB with the at least one cellular data network radio.
  • Example 27 The method of Example 26, wherein transmitting the interference information to the eNB with the at least one cellular data network radio comprises transmitting the interference information with a long-term evolution (LTE) network radio.
  • LTE long-term evolution
  • Example 28 The method according to any one of Examples 26 and 27, wherein transmitting the interference information to the eNB with the at least one cellular data network radio comprises transmitting the interference information using at least one network radio selected from a 3G network radio, a 2G network radio, and a WiMAX network radio.
  • Example 29 The method according to any one of Examples 26-28, further comprising determining a maximum cellular transmit power of the at least one cellular data network radio to prevent blocking interference, wherein at least one of detecting and predicting interference information comprises at least one of detecting and predicting the maximum cellular transmit power to prevent blocking interference.
  • Example 30 The method according to any one of Examples 26-29, further comprising determining a predicted in-band interference level that the at least one cellular data network radio will induce on the at least one other communication radio; wherein at least one of detecting and predicting interference information comprises at least one of detecting and predicting the predicted in-band interference level.
  • Example 31 The method of Example 30, wherein: communicating over at least one WLAN comprises communicating over a plurality of different channels; and at least one of detecting and predicting interference information comprises at least one of detecting and predicting a different predicted in-band interference level for each of the plurality of different channels.
  • Example 32 The method according to any one of Examples 26-31 , further comprising determining an expected in-band interference level that the at least one other communication radio will induce on the at least one cellular data network radio, and comparing the expected in band interference level to an allowable in-band interference level to generate comparison information, wherein the interface information includes the comparison information.
  • Example 33 The method of Example 32, further comprising
  • the comparison information includes information regarding comparisons of different in-band interference levels corresponding to the plurality of different channels to the allowable in-band interference level.
  • Example 34 The method according to any one of Examples 26-32, further comprising determining a maximum other transmit power of the at least one other communication radio to prevent blocking interference, wherein the interference information indicates the maximum other transmit power to prevent blocking interference.
  • Example 35 The method according to any one of Examples 26-32, further comprising dynamically updating the interference information and transmitting updated interference information to the eNB.
  • Example 36 The method of Example 35, wherein dynamically updating the interference information and transmitting updated interference information to the eNB comprises dynamically updating the interference information and transmitting the updated interference information to the eNB responsive to a triggering event.
  • Example 37 The method of Example 36, wherein dynamically updating the interference information and transmitting the updated interference information to the eNB responsive to a triggering event comprises dynamically updating the interference information and transmitting the updated interference information to the eNB responsive to one or more events selected from the group consisting of activation of the at least one other communication radio, deactivation of the at least one other communication radio, and a change in operation of the at least one other communication radio.
  • Example 38 The method according to any one of Examples 26-37, further comprising transmitting the interference information to the eNB in a
  • Example 39 The method according to any one of Examples 26-37, further comprising transmitting the interference information to the eNB in an
  • Example 40 The method according to any one of Examples 26-37, further comprising transmitting the interference information to the eNB in a MeasResults of a MeasurementReport-r8-les.
  • Example 41 A method of operating an evolved Node B (eNB), the method comprising: communicating with User Equipment (UE) through a cellular data network using at least one cellular data network radio of the UE; receiving, through the at least one cellular data network radio from the UE, interference information indicating interference between communications of the at least one cellular data network radio of the UE and communications of at least one Wireless Local Area Network (WLAN) radio of the UE; and taking action to attempt to counter the interference indicated by the interference information if the interference indicated by the interference information exceeds one or more predetermined limits.
  • UE User Equipment
  • WLAN Wireless Local Area Network
  • Example 42 The method of Example 41 , wherein: receiving interference information comprises receiving interference information indicating a maximum cellular transmit power of the cellular data network radio of the UE to prevent blocking interference to the at least one WLAN radio of the UE; and determining whether the at least one cellular data network radio of the UE can maintain adequate performance while operating under the maximum cellular transmit power.
  • Example 43 The method of claim 42, further comprising transmitting a Transmit Power Control command to the UE instructing the UE to limit a cellular transmit power of the cellular data network radio to the maximum cellular transmit power responsive to a determination that the UE can maintain adequate
  • Example 44 The method according to any one of Examples 41 -43, wherein: receiving interference information comprises receiving interference information indicating a predicted in-band interference level that the at least one cellular data network radio of the UE will induce on the at least one WLAN radio of the UE; and offsetting Received Signal Strength Indicators (RSSIs) received by the eNB from the UE with the predicted in band interference level.
  • RSSIs Received Signal Strength Indicators
  • Example 45 The method according to any one of Examples 41 -44, wherein: receiving interference information comprises receiving interference information indicating an expected in-band interference level that the at least one WLAN radio of the UE will induce on the at least one cellular data network radio of the UE; and comparing available access points and mobility sets for the at least one WLAN radio using the expected in-band interference level.
  • Example 46 The method according to any one of Examples 41 -45, wherein taking action to attempt to counter the interference indicated by the interference information comprises attempting to offload at least one of the cellular data network radio communications of the UE and the at least one WLAN radio communications of the UE if the interference indicated by the interference information exceeds the predetermined limits, and wherein the offload comprises one of complete offload and partial offload.
  • Example 47 The method according to any one of Examples 41 -46, wherein taking action to attempt to counter the interference indicated by the interference information comprises transmitting a command to the UE instructing the UE to cease operating the at least one cellular data network radio of the UE and the at least one WLAN radio of the UE simultaneously if the interference indicated by the interference information exceeds the one or more predetermined limits.
  • Example 48 The method according to any one of Examples 41 -46, wherein taking action to attempt to counter the interference indicated by the interference information comprises transmitting a request to an access point in communication with the at least one WLAN radio of the UE if the interference indicated by the interference information exceeds the one or more predetermined limits, wherein the request includes at least one of: a request that the at least one WLAN radio switch to communication with another access point; and a request that the access point select at least one of a different channel and a different frequency with which to communicate with the at least one WLAN radio.
  • Example 49 A method of operating User Equipment (UE), the method comprising: engaging in cellular data communications with evolved Node Bs (eNBs) according to an LTE protocol using a long-term evolution (LTE) radio of the UE; engaging in WLAN communications through at least one access point using a Wireless Local Area Network (WLAN) radio at the same time that the LTE radio is engaging in the cellular data communications; determining in-band interference and blocking interference between the cellular data communications of the LTE radio and the WLAN communications of the WLAN radio; transmitting, through the LTE radio, interference information indicating at least the in-band interference and the blocking interference to an eNB; and receive commands from at least one of the eNB and one of the at least one access points instructing the UE to take action to mitigate at least one of the in-band interference and the blocking interference, wherein the action to mitigate comprises at least one of: operating the LTE radio at a transmit power less than a maximum cellular transmit power to prevent blocking interference; and offloading at least one of the LTE radio and the
  • Example 51 A means for performing the method according to any one of Examples 26-50.
  • Example 52 A non-transitory computer-readable medium including computer-readable instructions stored thereon, the computer-readable instructions configured to instruct at least one processor to perform the method according to any one of Examples 26-50.
  • Example 53 a User Equipment (UE) comprising: a Wireless Local Area Network (WLAN) transceiver configured to communicate with a WLAN; a cellular transceiver configured to communicate via a cellular link; and a LTE/WLAN
  • WLAN Wireless Local Area Network
  • Example 54 The UE of Example 53 or some other example herein, wherein the WLAN measurement configuration contains WLAN identifiers, WLAN channels and WLAN bands.
  • Example 55 The UE of example 54 or some other example herein, further configured to estimate and report to the eNB the interference intensity between operating LTE frequencies and configured WLAN channels and WLAN bands.
  • Example 56 An apparatus comprising radio frequency (RF) circuitry configured to receive and transmit signals.
  • the apparatus also includes baseband circuitry coupled with the RF circuitry, the baseband circuitry configured to cause communication via a wireless local area network (WLAN) as well as a long term evolution (LTE) network via the RF circuity.
  • the baseband circuitry is also configured to provide interference metrics for the apparatus to an evolved NodeB (eNB) to use when configuring communications involving the apparatus.
  • eNB evolved NodeB
  • Example 57 The apparatus of Example 56, wherein the interference metrics include metrics regarding interference from LTE communications of the apparatus as providing interference for communications with the WLAN.
  • Example 58 The apparatus of Example 57 wherein the baseband circuitry is further configured to aggregate per receiver frequency, dynamic range, and/or bandwidth specifications.
  • Example 59 The apparatus of Example 58, wherein the baseband circuitry is further configured to cause transmission of an indicator indicating a safe transmission power for LTE communications.
  • Example 60 The apparatus of Example 59, wherein the baseband circuitry is further configured to receive control of transmit power to be below the safe transmission power.
  • Example 61 The apparatus of Example 57, wherein the baseband circuitry is further configured to calculate per-receiver frequency and bandwidth for an in-band interference level that LTE communications cause to the collocated radio receivers.
  • Example 62 The apparatus of Example 61 , wherein the baseband circuitry is further configured to cause transmission of an indicator indicating the per-receiver frequency and bandwidth.
  • Example 63 The apparatus of Example 56 or some other example herein, wherein the interference metrics include metrics regarding interference from LTE communications of the apparatus as receiving interference from communications with the WLAN.
  • Example 64 The apparatus of Example 63, wherein the baseband circuitry is further configured to calculate an expected amount of in-band interference based on spectral emission of collocated transmitters of the apparatus and/or design characteristics of LTE receiving circuitry of the RF circuitry.
  • Example 65 The apparatus of Example 64, wherein the baseband circuitry is further configured to cause transmission of an indicator including the expected amount of in-band interference.
  • Example 66 The apparatus of Example 56, wherein the baseband circuitry is configured to repeat provision of the interference metrics.
  • Example 67 The apparatus of Example 56, wherein the apparatus includes a user equipment (UE).
  • UE user equipment
  • Example 68 A method for facilitating communications in a user equipment (UE).
  • the method includes communicating or causing to communicate with a long term evolution (LTE) network.
  • the method also includes communicating or causing to communicate with a wireless local area network (WLAN).
  • the method also includes determining values describing interference between LTE and WLAN communications made via the UE.
  • the method also includes transmitting or causing transmission of the values describing the interference to an evolved NodeB (eNB).
  • eNB evolved NodeB
  • Example 69 The method of Example 68, wherein determining the values describing interference include determining values describing interference felt in WLAN communications from LTE communications of the UE.
  • Example 70 The method of Example 69, wherein determining values includes aggregating per receiver frequency, dynamic range, and/or
  • Example 71 The method of Example 70, wherein transmitting or causing transmission of the values describing the interference comprises transmitting or causing transmission of an indicator indicating a safe transmission power for LTE communications.
  • Example 72 The method of Example 71 , further including receiving control of transmit power to be below the safe transmission power.
  • Example 73 The method of Example 71 , wherein determining values includes calculating per-receiver frequency and bandwidth for an in-band
  • Example 74 The method of Example 73, wherein transmitting or causing transmission includes transmitting or causing transmission of an indicator indicating the per-receiver frequency and bandwidth.
  • Example 75 The method of Example 68, wherein determining the values describing interference includes determining values describing interference felt in LTE communications of the UE from communications with the WLAN.
  • Example 76 The method of Example 75, wherein determining the values includes calculating an expected amount of in-band interference based on spectral emission of collocated transmitters of the UE and/or design characteristics of LTE receiving circuitry of the UE.
  • Example 77 The method of Example 76, wherein transmitting or causing transmission includes transmitting or causing transmission of an indicator including the expected amount of in-band interference.
  • Example 78 The method of Example 68, further including repeating determining values describing interference and transmitting, or causing transmission of the values describing the interference.
  • Example 79 An apparatus comprising radio frequency (RF) circuitry to transmit and receive signals.
  • the apparatus also includes baseband circuitry coupled with the RF circuitry, the baseband circuitry to cause communication via a long term evolution (LTE) network via the RF circuity.
  • the baseband circuitry is also configured to receive interference metrics for a user equipment (UE) communicating with the apparatus via the LTE network.
  • the baseband circuitry is also configured to control LTE or wireless local area network (WLAN) communications of the UE based at least in part on the received interference metrics.
  • UE user equipment
  • WLAN wireless local area network
  • Example 80 The apparatus of Example 79, wherein the baseband circuitry is configured to determine an access point (AP) for the UE to communicate with and to cause the UE to communicate with the determined access point.
  • AP access point
  • Example 81 The apparatus of Example 79, wherein the baseband circuitry is configured to control the UE to move between APs.
  • Example 82 The apparatus of Example 79, wherein the baseband circuitry is configured to make a decision to select between complete and partial offload.
  • Example 83 The apparatus of Example 79, wherein the baseband circuitry is configured to control an AP to select a different channel and/or frequency to communicate with the UE.
  • Example 84 The apparatus of Example 79, wherein the baseband circuitry is configured to change a traffic steering ratio between Wi-Fi and LTE
  • Example 85 The apparatus of Example 79, wherein the baseband circuitry is configured to take a reported safe transmission power for LTE
  • Example 86 The apparatus of Example 79, wherein the apparatus includes an evolved NodeB (eNB).
  • eNB evolved NodeB
  • Example 87 A method for facilitating user equipment (UE)
  • the method includes receiving values describing interference between long term evolution (LTE) and wireless local area network (WLAN) communications made via the UE.
  • the method also includes transmitting or causing transmission of instructions to the UE or to WLAN
  • Example 88 The method of Example 87, wherein the method further includes determining an access point (AP) for the UE to communicate with and transmitting instructions includes transmitting instructions to cause the UE to communicate with the determined access point.
  • AP access point
  • Example 89 The method of Example 87, wherein transmitting instructions includes transmitting instructions to cause the UE to move between APs.
  • Example 90 The method of Example 87, and further includes selecting between complete and partial offload for the UE.
  • Example 91 The method of Example 87, and further includes selecting a different channel and/or frequency to communicate with the UE.
  • Example 92 The method of Example 87, and further includes changing a traffic steering ratio between Wi-Fi and LTE communications on the UE.
  • Example 93 The method of Example 87, and further includes configuring max transmission power for the UE based at least in part on a reported safe transmission power for LTE communications by the UE.
  • Example 94 An apparatus comprising means to perform one or more elements of a method described in or related to any of Examples 68-78, or any other method or process described herein.
  • Example 95 One or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of a method described in or related to any of Examples 68-78, or any other method or process described herein.
  • Example 96 An apparatus comprising logic, modules, and/or circuitry to perform one or more elements of a method described in or related to any of
  • Example 97 A method, technique, or process as described in or related to any of examples 68-78, or portions or parts thereof.
  • Example 98 An apparatus comprising: one or more processors and one or more computer readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform the method, techniques, or process as described in or related to any of examples 68-78, or portions thereof.
  • Example 99 An apparatus comprising means to perform one or more elements of a method described in or related to any of Examples 85-91 , or any other method or process described herein.
  • Example 100 One or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of a method described in or related to any of Examples 85-91 , or any other method or process described herein.
  • Example 101 An apparatus comprising logic, modules, and/or circuitry to perform one or more elements of a method described in or related to any of
  • Example 102 A method, technique, or process as described in or related to any of Examples 87-93, or portions or parts thereof.
  • Example 103 An apparatus comprising: one or more processors and one or more computer readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform the method, techniques, or process as described in or related to any of Examples 87-93, or portions thereof.
  • Example 104 A method of communicating in a wireless network as shown and described herein.
  • Example 105 A system for providing wireless communication as shown and described herein.
  • Example 106 A device for providing wireless communication as shown and described herein.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne des appareils pour des équipements d'utilisateurs (UE) et des nœuds B évolués (eNB) pour la coexistence entre des communications cellulaires et d'autres communications. Un appareil pour un UE inclut des circuits de commande servant à commander une radio cellulaire et une autre radio, les circuits de commande étant programmés pour communiquer simultanément au moyen de la radio cellulaire et de l'autre radio. Les circuits de commande sont également programmés pour au moins détecter ou prédire des informations d'interférence indiquant une interférence entre les communications de la radio cellulaire et de l'autre radio, et faire en sorte que les informations d'interférence soient transmises à un eNB. Un appareil pour un eNB inclut des circuits de commande programmés pour recevoir les informations d'interférence reçues d'une radio cellulaire de l'eNB en provenance de l'UE, et à entreprendre une action pour tenter de contrer l'interférence indiquée par les informations d'interférences si l'interférence dépasse une ou plusieurs limites préétablies.
PCT/US2016/023412 2015-11-13 2016-03-21 Équipement d'utilisateur et nœuds b évolués pour la gestion d'interférences dans une agrégation de réseaux WO2017082945A1 (fr)

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