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WO2018228583A1 - Mesure d'interférence de liaison croisée dans des communications mobiles - Google Patents

Mesure d'interférence de liaison croisée dans des communications mobiles Download PDF

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Publication number
WO2018228583A1
WO2018228583A1 PCT/CN2018/091794 CN2018091794W WO2018228583A1 WO 2018228583 A1 WO2018228583 A1 WO 2018228583A1 CN 2018091794 W CN2018091794 W CN 2018091794W WO 2018228583 A1 WO2018228583 A1 WO 2018228583A1
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Prior art keywords
trp
processor
srs
csi
measurement according
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PCT/CN2018/091794
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English (en)
Inventor
Bo-Si CHEN
Weidong Yang
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MediaTek Inc
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MediaTek Inc
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Priority to CN201880004556.4A priority Critical patent/CN110249686A/zh
Publication of WO2018228583A1 publication Critical patent/WO2018228583A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals

Definitions

  • the present disclosure is generally related to mobile communications and, more particularly, to cross link interference (CLI) measurement with respect to user equipment and network apparatus in mobile communications.
  • CLI cross link interference
  • cross link interference may occur among a plurality of nodes.
  • Each node in the wireless network may be a network apparatus (e.g., a transmit/receive point (TRP) ) or a communication apparatus (e.g., a user equipment (UE) ) .
  • TRP transmit/receive point
  • UE user equipment
  • a UE may be engaged in communication with a TRP, another UE, or both, at a given time.
  • the cross link interference measurements may associate three types of node pairs: TRP-TRP, TRP-UE and UE-UE.
  • CLI measurements may be needed.
  • UE-UE or TRP-TRP interference measurements may become important and necessary.
  • some reference signals may be needed for measurements by a node.
  • CSI-RS channel state information-reference signal
  • SRS sounding reference signal
  • An objective of the present disclosure is to propose solutions or schemes that address the aforementioned issues pertaining to CLI measurement with respect to user equipment and network apparatus in mobile communications.
  • a method may involve an apparatus receiving a configuration indicating a zero power (ZP) SRS from a TRP.
  • the method may also involve the apparatus receiving an SRS from a UE.
  • the method may further involve the apparatus performing CLI measurement according to the SRS from the UE with the ZP SRS from the TRP.
  • ZP zero power
  • a method may involve an apparatus transmitting a configuration indicating a ZP CSI-RS to a UE.
  • the method may also involve the apparatus receiving a CSI-RS from a TRP.
  • the method may further involve the apparatus performing CLI measurement according to the CSI-RS from the TRP with the ZP TRP from the UE.
  • an apparatus may comprise a transceiver capable of wirelessly communicating with a plurality of nodes of a wireless network.
  • the apparatus may also comprise a processor communicatively coupled to the transceiver.
  • the processor may be capable of receiving a configuration indicating a ZP SRS from a TRP.
  • the processor may also be capable of receiving an SRS from a UE.
  • the processor may further be capable of performing CLI measurement according to the SRS from the UE with the ZP SRS from the TRP.
  • an apparatus may comprise a transceiver capable of wirelessly communicating with a plurality of nodes of a wireless network.
  • the apparatus may also comprise a processor communicatively coupled to the transceiver.
  • the processor may be capable of transmitting a configuration indicating a ZP CSI-RS to a UE.
  • the processor may also be capable of receiving a CSI-RS from a TRP.
  • the processor may further be capable of performing CLI measurement according to the CSI-RS from the TRP with the ZP TRP from the UE.
  • LTE Long-Term Evolution
  • LTE-Advanced Long-Term Evolution-Advanced
  • LTE-Advanced Pro 5th Generation
  • 5G New Radio
  • NR New Radio
  • IoT Internet-of-Things
  • NB-IoT Internet of Things
  • the proposed concepts, schemes and any variation (s) /derivative (s) thereof may be implemented in, for and by other types of radio access technologies, networks and network topologies.
  • the scope of the present disclosure is not limited to the examples described herein.
  • FIG. 1 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
  • FIG. 2 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
  • FIG. 3 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
  • FIG. 4 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
  • FIG. 5 is a block diagram of an example communication apparatus and an example network apparatus in accordance with an implementation of the present disclosure.
  • FIG. 6 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • FIG. 7 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and/or solutions pertaining to CLI measurement with respect to user equipment and network apparatus in mobile communications.
  • a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
  • CLI may occur among a plurality of nodes.
  • Each node in the wireless network may be a network apparatus (e.g., TRP) or a communication apparatus (e.g., UE) .
  • a UE may be engaged in communication with a TRP, another UE, or both, at a given time.
  • the cross link interference measurements may associate three types of node pairs: TRP-TRP, TRP-UE and UE-UE.
  • a TRP may be an eNB in an LTE-based network or a gNB in a 5G/NR network.
  • CLI measurements may be needed.
  • UE-UE, TRP-TRP or TRP-UE interference measurements may become important and necessary.
  • some reference signals may be needed for measurements by a node.
  • a CSI-RS may be used for TRP-TRP interference measurements and an SRS may be used for UE-UE interference measurements.
  • the signal used for the CLI measurement may be classified as the CLI reference signal (RS) .
  • the CLI RS may comprise the CSI-RS or the SRS.
  • the CSI-RS may also be used for TRP-UE or UE-UE interference measurements.
  • the SRS may also be used for TRP-UE or TRP-TRP interference measurements.
  • the UE may also be able to transmit the CSI-RS and the TRP may also be able to transmit the SRS for the CLI measurement.
  • FIG. 1 illustrates an example scenario 100 under schemes in accordance with implementations of the present disclosure.
  • Scenario 100 involves a plurality of UEs (e.g., UE 120 and 140) and a plurality of TRPs (e.g., TRP 110 and 130) , which may be a part of a wireless communication network (e.g., an LTE network, an LTE-Advanced network, an LTE-Advanced Pro network, a 5G network, an NR network, an IoT network or an NB-IoT network) .
  • UE 120 may be served by TRP 110.
  • UE 140 may be served by TRP 130.
  • TRP 110 and TRP 130 may be configured to exchange the timing of the CLI measurement slots first.
  • the CLI measurement slots may be used by the UE or the TRP to perform the CLI measurement.
  • TRP 130 may be configured to rate match a zero power (ZP) SRS to UE 140.
  • ZP zero power
  • TRP 110 may configure UE 120 to transmit the SRS in a CLI measurement slot.
  • UE 120 may be configured to transmit the SRS in the CLI measurement slot.
  • TRP 110 may inform the timing of the CLI measurement slot to TRP 130.
  • TRP 130 may be configured to rate match a ZP SRS to UE 140 in the CLI measurement slot. In other words, TRP 130 may be configured not to transmit signals to UE 140 in the measurement slot.
  • TRP 130 may further transmit a configuration to inform UE 140 the occurrence of the ZP SRS.
  • UE 140 may be configured to receive the configuration indicating the ZP SRS in the CLI measurement slot. Thus, UE 140 may be configured to receive the SRS from UE 120with the ZP SRS from TRP 130. UE 140 may be configured to perform the CLI measurement according to the SRS from UE 120 with the ZP SRS from TRP 130. Accordingly, UE 140 may be able to measure the uncontaminated SRS in the CLI measurement slot. After performing the CLI measurement, UE 140 may further be configured to report the measurement result to TRP 130 or determine whether to transmit uplink data according to the measurement result.
  • FIG. 2 illustrates an example scenario 200 under schemes in accordance with implementations of the present disclosure.
  • Scenario 200 involves a plurality of UEs (e.g., UE 220 and 240) and a plurality of TRPs (e.g., TRP 210 and 230) , which may be a part of a wireless communication network (e.g., an LTE network, an LTE-Advanced network, an LTE-Advanced Pro network, a 5G network, an NR network, an IoT network or an NB-IoT network) .
  • UE 220 may be served by TRP 210.
  • UE 240 may be served by TRP 230.
  • TRP 110 and TRP 130 may be configured to exchange the timing of the CLI measurement slots first.
  • the CLI measurement slots may be used by the UE or the TRP to perform the CLI measurement.
  • TRP 210 may configure UE 220 to rate match a ZP CSI-RS to TRP 210.
  • TRP 230 may be configured to transmit the CSI-RS in a CLI measurement slot.
  • TRP 230 may inform the timing of the CLI measurement slot to TRP 210 first.
  • TRP 210 may be configured to transmit a configuration to inform UE 220 to rate match a ZP CSI-RS in the CLI measurement slot.
  • UE 220 may be configured to receive the configuration indicating the ZP CSI-RS from TRP 210.
  • UE 220 may be configured to rate match the ZP CSI-RS to TRP 210in the CLI measurement slot.
  • UE 220 may be configured not to transmit signals to TRP 210 in the measurement slot.
  • TRP 210 may be able to receive the CSI-RS from TRP 230 with the ZP CSI-RS from UE 220.
  • TRP 210 may be configured to perform the CLI measurement according to the CSI-RS from TRP 230 with the ZP CSI-RS from UE 220. Accordingly, TRP 210 may be able to measure the uncontaminated CSI-RS in the CLI measurement slot.
  • TRP 210 may further be configured to determine whether to transmit downlink data or determine its scheduling strategy according to the measurement result.
  • FIG. 3 illustrates an example scenario 300 under schemes in accordance with implementations of the present disclosure.
  • Scenario 300 involves a plurality of UEs (e.g., UE 320 and 340) and a plurality of TRPs (e.g., TRP 310 and 330) , which may be a part of a wireless communication network (e.g., an LTE network, an LTE-Advanced network, an LTE-Advanced Pro network, a 5G network, an NR network, an IoT network or an NB-IoT network) .
  • UE 320 may be served by TRP 310.
  • UE 340 may be served by TRP 330.
  • the TRP may be able to transmit the SRS.
  • TRP 330 may be configured to transmit the SRS to UE 340 and TRP 310.
  • UE 340 may be configured to receive a first SRS from TRP 330.
  • UE 340 may be configured to receive a second SRS from UE 320.
  • UE 340 may be configured to perform downlink channel measurement according to the first SRS from TRP 330 and UE-UE interference measurement according to the second SRS from UE 320 at the same time.
  • TRP 310 may be configured to receive a first SRS from TRP 330.
  • TRP 310 may be configured to receive a second SRS from UE 320. Assuming that good cross-correlation property is held between the first SRS and the second SRS, TRP 310 may be configured to perform TRP-TRP interference measurement according to the first SRS from TRP 330 and uplink channel measurement according to the second SRS from UE 320 at the same time.
  • the reference signal transmitted from the UE should also be cell-specific.
  • the information of which device (e.g., UE or TRP) transmits the reference signals should also be exchanged among TRPs.
  • UE 340 may not know that the SRS is transmitted from UE 320 or TRP 310.
  • UE 320 may be configured to just report the interference strength and the cell-specific scrambling sequence to TRP 330.
  • TRP 330 may be able to determine that the interference is from UE 320 based on the information from TRP 310 and determine its scheduling strategy accordingly.
  • FIG. 4 illustrates an example scenario 400 under schemes in accordance with implementations of the present disclosure.
  • Scenario 400 involves a plurality of UEs (e.g., UE 420 and 440) and a plurality of TRPs (e.g., TRP 410 and 430) , which may be a part of a wireless communication network (e.g., an LTE network, an LTE-Advanced network, an LTE-Advanced Pro network, a 5G network, an NR network, an IoT network or an NB-IoT network) .
  • UE 420 may be served by TRP 410.
  • UE 440 may be served by TRP 430.
  • the UE may be able to transmit the CSI-RS.
  • UE 420 may be configured to transmit the CSI-RS to TRP 410 and UE 440.
  • UE 440 may be configured to receive a first CSI-RS from TRP 430.
  • UE 440 may be configured to receive a second CSI-RS from UE 420.
  • UE 340 may be configured to perform downlink channel measurement according to the first CSI-RS from TRP 430 and UE-UE interference measurement according to the second CSI-RS from UE 420 at the same time.
  • TRP 410 may be configured to receive a first CSI-RS from TRP 430.
  • TRP 410 may be configured to receive a second CSI-RS from UE 420. Assuming that good cross-correlation property is held between the first CSI-RS and the second CSI-RS, TRP 410 may be configured to perform TRP-TRP interference measurement according to the first CSI-RS from TRP 430 and uplink channel measurement according to the second CSI-RS from UE 420 at the same time.
  • FIG. 5 illustrates an example communication apparatus 510 and an example network apparatus 520 in accordance with an implementation of the present disclosure.
  • Each of communication apparatus 510 and network apparatus 520 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to CLI measurement with respect to user equipment and network apparatus in wireless communications, including scenarios 100, 200, 300 and 400 described above as well as processes 600 and 700 described below.
  • Communication apparatus 510 may be a part of an electronic apparatus, which may be a UE such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus.
  • communication apparatus 510 may be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer.
  • Communication apparatus 510 may also be a part of a machine type apparatus, which may be an IoT or NB-IoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus.
  • communication apparatus 510 may be implemented in a smartthermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center.
  • communication apparatus 510 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more complex-instruction-set-computing (CISC) processors.
  • IC integrated-circuit
  • Communication apparatus 510 may include at least some of those components shown in FIG. 5 such as a processor 512, for example.
  • communication apparatus 510 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of communication apparatus 510 are neither shown in FIG. 5 nor described below in the interest of simplicity and brevity.
  • other components e.g., internal power supply, display device and/or user interface device
  • Network apparatus 520 may be a part of an electronic apparatus, which may be a network node such as a TRP, a base station, a small cell, a router or a gateway.
  • network apparatus 520 may be implemented in an eNodeB in an LTE, LTE-Advanced or LTE-Advanced Pro network or in a gNB in a 5G, NR, IoT or NB-IoT network.
  • network apparatus 520 may be implemented in the form of one or more IC chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more CISC processors.
  • Network apparatus 520 may include at least some of those components shown in FIG.
  • Network apparatus 520 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of network apparatus 520 are neither shown in FIG. 5 nor described below in the interest of simplicity and brevity.
  • components not pertinent to the proposed scheme of the present disclosure e.g., internal power supply, display device and/or user interface device
  • each of processor 512 and processor 522 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though a singular term “a processor” is used herein to refer to processor 512 and processor 522, each of processor 512 and processor 522 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure.
  • each of processor 512 and processor 522 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and/or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure.
  • each of processor 512 and processor 522 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including power consumption reduction in a device (e.g., as represented by communication apparatus510) and a network (e.g., as represented by network apparatus 520) in accordance with various implementations of the present disclosure.
  • communication apparatus510 may also include a transceiver 516 coupled to processor 512 and capable of wirelessly transmitting and receiving data.
  • communication apparatus510 may further include a memory 514 coupled to processor 512 and capable of being accessed by processor 512 and storing data therein.
  • network apparatus 520 may also include a transceiver 526 coupled to processor 522 and capable of wirelessly transmitting and receiving data.
  • network apparatus 520 may further include a memory 524 coupled to processor 522 and capable of being accessed by processor 522 and storing data therein. Accordingly, communication apparatus510 and network apparatus 520 may wirelessly communicate with each other via transceiver 516 and transceiver 526, respectively.
  • each of communication apparatus510 and network apparatus 520 is provided in the context of a mobile communication environment in which communication apparatus510 is implemented in or as a communication apparatus or a UE and network apparatus 520 is implemented in or as a network node of a communication network.
  • processor 522 may be configured to rate match a ZP SRS to communication apparatus 510.
  • communication apparatus 510 may be served by network apparatus 520.
  • the neighbor TRP may configure the neighbor UE to transmit the SRS in a CLI measurement slot.
  • the neighbor UE may be configured to transmit the SRS in the CLI measurement slot.
  • the neighbor TRP may inform the timing of the CLI measurement slot to network apparatus 520.
  • Processor 522 may be configured to rate match a ZP SRS to communication apparatus 510 in the CLI measurement slot. In other words, processor 522 may be configured not to transmit signals to communication apparatus 510 in the measurement slot.
  • Processor 522 may further transmit, via transceiver 526, a configuration to inform communication apparatus 510 the occurrence of the ZP SRS.
  • Processor 512 may be configured to receive, via transceiver 516, the configuration indicating the ZP SRS in the CLI measurement slot.
  • processor 512 may be configured to receive the SRS from the neighbor UE with the ZP SRS from network apparatus 520.
  • Processor 512 may be configured to perform the CLI measurement according to the SRS from the neighbor UE with the ZP SRS from network apparatus 520. Accordingly, processor 512 may be able to measure the uncontaminated SRS in the CLI measurement slot.
  • processor 512 may further be configured to report the measurement result to network apparatus 520 or determine whether to transmit uplink data according to the measurement result.
  • processor 522 may configure communication apparatus 510 to rate match a ZP CSI-RS to network apparatus 520.
  • communication apparatus 510 may be served by network apparatus 520.
  • the neighbor TRP may transmit the CSI-RS in a CLI measurement slot.
  • the neighbor TRP may inform the timing of the CLI measurement slot to network apparatus 520 first.
  • Processor 522 may be configured to transmit a configuration, via transceiver 526, to inform communication apparatus 510 to rate match a ZP CSI-RS in the CLI measurement slot.
  • Processor 512 may be configured to receive the configuration indicating the ZP CSI-RS from network apparatus 520.
  • Processor 512 may be configured to rate match the ZP CSI-RS to network apparatus 520in the CLI measurement slot. In other words, processor 512 may be configured not to transmit signals to network apparatus 520 in the measurement slot. Thus, processor 522 may be able to receive the CSI-RS from the neighbor TRP with the ZP CSI-RS from communication apparatus 510. Processor 522 may be configured to perform the CLI measurement according to the CSI-RS from the neighbor TRP with the ZP CSI-RS from communication apparatus 510. Accordingly, processor 522 may be able to measure the uncontaminated CSI-RS in the CLI measurement slot. After performing the CLI measurement, processor 522 may further be configured to determine whether to transmit downlink data or determine its scheduling strategy according to the measurement result.
  • network apparatus 520 may be able to transmit, via transceiver 526, the SRS.
  • processor 522 may be configured to transmit the SRS to communication apparatus 510 and the neighbor TRP.
  • Processor 512 may be configured to receive, via transceiver 516, a first SRS from network apparatus 520.
  • Processor 512 may be configured to receive, via transceiver 516, a second SRS from the neighbor UE.
  • Processor 512 may be configured to perform downlink channel measurement according to the first SRS from network apparatus 520 and UE-UE interference measurement according to the second SRS from the neighbor UE at the same time.
  • processor 522 may be configured to receive, via transceiver 526, a first SRS from the neighbor TRP.
  • Processor 522 may be configured to receive, via transceiver 526, a second SRS from communication apparatus 510.
  • Processor 522 may be configured to perform TRP-TRP interference measurement according to the first SRS from the neighbor TRP and uplink channel measurement according to the second SRS from communication apparatus 510 at the same time.
  • processor 522 may be configured to receive, via transceiver 526, the information of which device transmits the reference signals (e.g., SRS or CSI-RS) from other TRPs.
  • the reference signals e.g., SRS or CSI-RS
  • processor 512 may not know that the SRS is transmitted from the neighbor UE or the neighbor TRP.
  • Processor 512 may be configured to just report the interference strength and the cell-specific scrambling sequence to network apparatus 520.
  • Processor 522 may be able to determine that the interference is from communication apparatus 510 based on the information from the neighbor TRP and determine its scheduling strategy accordingly.
  • communication apparatus 510 may be able to transmit, via transceiver 516, the CSI-RS.
  • processor 512 may be configured to transmit the CSI-RS to network apparatus 520 and the neighbor UE.
  • Processor 512 may be configured to receive, via transceiver 516, a first CSI-RS from network apparatus 520.
  • Processor 512 may be configured to receive, via transceiver 516, a second CSI-RS from the neighbor UE.
  • Processor 512 may be configured to perform downlink channel measurement according to the first CSI-RS from network apparatus 520 and UE-UE interference measurement according to the second CSI-RS from the neighbor UE at the same time.
  • processor 522 may be configured to receive, via transceiver 526, a first CSI-RS from the neighbor TRP.
  • Processor 522 may be configured to receive, via transceiver 526, a second CSI-RS from communication apparatus 510.
  • Processor 522 may be configured to perform TRP-TRP interference measurement according to the first CSI-RS from the neighbor TRP and uplink channel measurement according to the second CSI-RS from communication apparatus 510 at the same time.
  • FIG. 6 illustrates an example process 600 in accordance with an implementation of the present disclosure.
  • Process 600 may be an example implementation of scenarios100 and 300, whether partially or completely, with respect to CLI measurement in accordance with the present disclosure.
  • Process 600 may represent an aspect of implementation of features of communication apparatus 510.
  • Process 600 may include one or more operations, actions, or functions as illustrated by one or more of blocks 610, 620 and 630. Although illustrated as discrete blocks, various blocks of process 500 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 600 may executed in the order shown in FIG. 6 or, alternatively, in a different order.
  • Process 600 may be implemented by communication apparatus 510 or any suitable UE or machine type devices. Solely for illustrative purposes and without limitation, process 600 is described below in the context of communication apparatus 510.
  • Process 600 may begin at block 610.
  • process 600 may involve processor 512 of apparatus 510receiving a configuration indicating a ZP SRS from a TRP. Process 600 may proceed from 610 to 620.
  • process 600 may involve processor 512receiving an SRS from a UE.
  • Process 600 may proceed from 620 to 630.
  • process 600 may involve processor 512 performing CLI measurement according to the SRS from the UE with the ZP SRS from the TRP.
  • process 600 may involve processor 512receiving a first SRS from the TRP.
  • Process 600 may also involve processor 512receiving a second SRS from the UE.
  • Process 600 may further involve processor 512performing downlink channel measurement according to the first SRS and UE-UE interference measurement according to the second SRS at the same time.
  • process 600 may involve processor 512receivinga first CSI-RS from the TRP.
  • Process 600 may also involve processor 512receiving a second CSI-RS from the UE.
  • Process 600 may further involve processor 512performing the downlink channel measurement according to the first CSI-RS and the UE-UE interference measurement according to the second CSI-RS at the same time.
  • process 600 may involve processor 512rate matching a ZP CSI-RS to the TRP.
  • process 600 may involve processor 512transmitting a first CSI-RS to the TRP.
  • Process 600 may also involve processor 512transmitting a second CSI-RS to the UE.
  • FIG. 7 illustrates an example process 700 in accordance with an implementation of the present disclosure.
  • Process 700 may be an example implementation of scenarios200 and 400, whether partially or completely, with respect to CLI measurement in accordance with the present disclosure.
  • Process 700 may represent an aspect of implementation of features of network apparatus 520.
  • Process 700 may include one or more operations, actions, or functions as illustrated by one or more of blocks 710, 720 and 730. Although illustrated as discrete blocks, various blocks of process 700 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 700 may executed in the order shown in FIG. 7 or, alternatively, in a different order.
  • Process 700 may be implemented by network apparatus 520 or any suitable base stations or network nodes. Solely for illustrative purposes and without limitation, process 700 is described below in the context of network apparatus 520. Process 700 may begin at block 710.
  • process 700 may involve processor 522 of apparatus 520transmitting a configuration indicating a ZP CSI-RS to a UE.
  • Process 700 may proceed from 710 to 720.
  • process 700 may involve processor 522receiving a CSI-RS from a TRP. Process 700 may proceed from 720 to 730.
  • process 700 may involve processor 522 performing CLI measurement according to the CSI-RS from the TRP with the ZP TRP from the UE.
  • process 700 may involve processor 522receiving, by the processor, a first SRS from the UE.
  • Process 700 may also involve processor 522receiving a second SRS from the TRP.
  • Process 700 may further involve processor 522performing uplink channel measurement according to the first SRS and TRP-TRP interference measurement according to the second SRS at the same time.
  • process 700 may involve processor 522receiving a first CSI-RS from the UE.
  • Process 700 may also involve processor 522receiving a second CSI-RS from the TRP.
  • Process 700 may further involve processor 522performing the uplink channel measurement according to the first CSI-RS and the TRP-TRP interference measurement according to the second CSI-RS at the same time.
  • process 700 may involve processor 522rate matching a ZP SRS to the UE.
  • process 700 may involve processor 522transmitting a first SRS to the UE.
  • Process 700 may also involve processor 522transmitting a second SRS to the TRP.
  • any two components so associated can also be viewed as being “operably connected” , or “operably coupled” , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being “operably couplable” , to each other to achieve the desired functionality.
  • operably couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne diverses solutions de mesures d'interférence de liaison croisée (CLI) par rapport à un équipement utilisateur et un appareil de réseau dans des communications mobiles. Un appareil peut recevoir une configuration indiquant un signal de référence de sondage (SRS) de puissance nulle (ZP) à partir d'un point d'émission-réception (TRP). L'appareil peut recevoir un SRS provenant d'un équipement utilisateur (UE). L'appareil peut effectuer une mesure CLI en fonction du SRS provenant de l'UE avec le SRS ZP provenant du TRP.
PCT/CN2018/091794 2017-06-16 2018-06-19 Mesure d'interférence de liaison croisée dans des communications mobiles Ceased WO2018228583A1 (fr)

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