WO2022041101A1 - Mesure d'interférence de liaison croisée à l'aide de ressources de signal de référence de sondage - Google Patents

Mesure d'interférence de liaison croisée à l'aide de ressources de signal de référence de sondage Download PDF

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Publication number
WO2022041101A1
WO2022041101A1 PCT/CN2020/112015 CN2020112015W WO2022041101A1 WO 2022041101 A1 WO2022041101 A1 WO 2022041101A1 CN 2020112015 W CN2020112015 W CN 2020112015W WO 2022041101 A1 WO2022041101 A1 WO 2022041101A1
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Prior art keywords
cli
resource set
srs
rsrp
mobile station
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PCT/CN2020/112015
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English (en)
Inventor
Huilin Xu
Yuwei REN
Ruifeng MA
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Qualcomm Incorporated
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Priority to PCT/CN2020/112015 priority Critical patent/WO2022041101A1/fr
Publication of WO2022041101A1 publication Critical patent/WO2022041101A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for cross-link interference (CLI) measurement using sounding reference signal (SRS) resources.
  • CLI cross-link interference
  • SRS sounding reference signal
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, and/or the like) .
  • multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE) .
  • LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • UMTS Universal Mobile Telecommunications System
  • a wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) .
  • a user equipment (UE) may communicate with a base station (BS) via the downlink and uplink.
  • the downlink (or forward link) refers to the communication link from the BS to the UE
  • the uplink (or reverse link) refers to the communication link from the UE to the BS.
  • a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio (NR) BS, a 5G Node B, and/or the like.
  • New Radio which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • 3GPP Third Generation Partnership Project
  • NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink (UL) , as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)
  • DFT-s-OFDM discrete Fourier transform spread OFDM
  • MIMO multiple-input multiple-output
  • a method of wireless communication performed by a mobile station includes receiving, by the mobile station, a configuration for a cross-link interference (CLI) measurement procedure indicating a sounding reference signal (SRS) resource set for measuring a reference signal received power (RSRP) of CLI using the SRS resource set; determining, by the mobile station, that an SRS RSRP measurement of the CLI is not permitted; and measuring a received signal strength indicator (RSSI) of the CLI using the SRS resource set based at least in part on determining that the CLI SRS RSRP measurement is not permitted.
  • CLI cross-link interference
  • SRS sounding reference signal
  • RSRP reference signal received power
  • a method of wireless communication performed by a base station includes transmitting, by the base station and to a mobile station, a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set; and receiving, by the base station and from the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set.
  • a mobile station for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to receive a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set; determine that an SRS RSRP measurement of the CLI is not permitted; and measure an RSSI of the CLI using the SRS resource set based at least in part on determining that the CLI SRS RSRP measurement is not permitted.
  • a base station for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to transmit, to a mobile station, a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set; and receive, from the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set.
  • a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a mobile station, cause the mobile station to receive a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set; determine that an SRS RSRP measurement of the CLI is not permitted; and measure an RSSI of the CLI using the SRS resource set based at least in part on determining that the CLI SRS RSRP measurement is not permitted.
  • a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to transmit, to a mobile station, a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set; and receive, from the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set.
  • an apparatus for wireless communication includes means for receiving a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set; means for determining that an SRS RSRP measurement of the CLI is not permitted; and means for measuring an RSSI of the CLI using the SRS resource set based at least in part on determining that the CLI SRS RSRP measurement is not permitted.
  • an apparatus for wireless communication includes means for transmitting, to a mobile station, a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set; and means for receiving, from the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set.
  • aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.
  • Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with various aspects of the present disclosure.
  • Fig. 2 is a diagram illustrating an example of a base station in communication with a UE in a wireless network, in accordance with various aspects of the present disclosure.
  • Fig. 3 is a diagram illustrating an example associated with CLI detection and mitigation, in accordance with various aspects of the present disclosure.
  • Fig. 4 is a diagram illustrating examples associated with UE to UE CLI, in accordance with various aspects of the present disclosure.
  • Fig. 5 is a diagram illustrating an example associated with CLI measurement using SRS resources, in accordance with various aspects of the present disclosure.
  • Figs. 6 and 7 are diagrams illustrating example processes associated with CLI measurement using SRS resources, in accordance with various aspects of the present disclosure.
  • FIGs. 8 and 9 are block diagrams of example apparatuses for wireless communication, in accordance with various aspects of the present disclosure.
  • aspects may be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT) , aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G) .
  • RAT radio access technology
  • Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with various aspects of the present disclosure.
  • the wireless network 100 may be or may include elements of a 5G (NR) network, an LTE network, and/or the like.
  • the wireless network 100 may include a number of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities.
  • a base station (BS) is an entity that communicates with user equipment (UEs) and may also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit receive point (TRP) , and/or the like.
  • Each BS may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.
  • a BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a closed subscriber group (CSG) ) .
  • a BS for a macro cell may be referred to as a macro BS.
  • a BS for a pico cell may be referred to as a pico BS.
  • a BS for a femto cell may be referred to as a femto BS or a home BS.
  • a BS 110a may be a macro BS for a macro cell 102a
  • a BS 110b may be a pico BS for a pico cell 102b
  • a BS 110c may be a femto BS for a femto cell 102c.
  • a BS may support one or multiple (e.g., three) cells.
  • eNB base station
  • NR BS NR BS
  • gNB gNode B
  • AP AP
  • node B node B
  • 5G NB 5G NB
  • cell may be used interchangeably herein.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS.
  • the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network, and/or the like using any suitable transport network.
  • Wireless network 100 may also include relay stations.
  • a relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS) .
  • a relay station may also be a UE that can relay transmissions for other UEs.
  • a relay BS 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d.
  • a relay BS may also be referred to as a relay station, a relay base station, a relay, and/or the like.
  • Wireless network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100.
  • macro BSs may have a high transmit power level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .
  • a network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs.
  • Network controller 130 may communicate with the BSs via a backhaul.
  • the BSs may also communicate with one another, e.g., directly or indirectly via a wireless or wireline backhaul.
  • UEs 120 may be dispersed throughout wireless network 100, and each UE may be stationary or mobile.
  • a UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, and/or the like.
  • a UE may be a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, biometric sensors/devices, wearable devices (smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart ring, smart bracelet) ) , an entertainment device (e.g., a music or video device, or a satellite radio) , a vehicular component or sensor, smart meters/sensors, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.
  • PDA personal digital assistant
  • WLL wireless local loop
  • Some UEs may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs.
  • MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, and/or the like, that may communicate with a base station, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link.
  • Some UEs may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband internet of things) devices.
  • IoT Internet-of-Things
  • NB-IoT narrowband internet of things
  • UE 120 may be included inside a housing that houses components of UE 120, such as processor components, memory components, and/or the like.
  • the processor components and the memory components may be coupled together.
  • the processor components e.g., one or more processors
  • the memory components e.g., a memory
  • the processor components and the memory components may be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, and/or the like.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular RAT and may operate on one or more frequencies.
  • a RAT may also be referred to as a radio technology, an air interface, and/or the like.
  • a frequency may also be referred to as a carrier, a frequency channel, and/or the like.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more UEs 120 may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another) .
  • the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, and/or the like) , a mesh network, and/or the like.
  • V2X vehicle-to-everything
  • the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.
  • Devices of wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided based on frequency or wavelength into various classes, bands, channels, and/or the like.
  • devices of wireless network 100 may communicate using an operating band having a first frequency range (FR1) , which may span from 410 MHz to 7.125 GHz, and/or may communicate using an operating band having a second frequency range (FR2) , which may span from 24.25 GHz to 52.6 GHz.
  • FR1 first frequency range
  • FR2 second frequency range
  • the frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies.
  • FR1 is often referred to as a “sub-6 GHz” band.
  • FR2 is often referred to as a “millimeter wave” band despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
  • EHF extremely high frequency
  • ITU International Telecommunications Union
  • sub-6 GHz or the like, if used herein, may broadly represent frequencies less than 6 GHz, frequencies within FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz) .
  • millimeter wave may broadly represent frequencies within the EHF band, frequencies within FR2, and/or mid-band frequencies (e.g., less than 24.25 GHz) . It is contemplated that the frequencies included in FR1 and FR2 may be modified, and techniques described herein are applicable to those modified frequency ranges.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with various aspects of the present disclosure.
  • Base station 110 may be equipped with T antennas 234a through 234t
  • UE 120 may be equipped with R antennas 252a through 252r, where in general T ⁇ 1 and R ⁇ 1.
  • a transmit processor 220 may receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQIs) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS (s) selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) and/or the like) and control information (e.g., CQI requests, grants, upper layer signaling, and/or the like) and provide overhead symbols and control symbols.
  • MCS modulation and coding schemes
  • Transmit processor 220 may also generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , and/or the like) and synchronization signals (e.g., the primary synchronization signal (PSS) and secondary synchronization signal (SSS) ) .
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t.
  • MIMO multiple-input multiple-output
  • Each modulator 232 may process a respective output symbol stream (e.g., for OFDM and/or the like) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
  • antennas 252a through 252r may receive the downlink signals from base station 110 and/or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively.
  • Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples.
  • Each demodulator 254 may further process the input samples (e.g., for OFDM and/or the like) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller/processor 280.
  • controller/processor may refer to one or more controllers, one or more processors, or a combination thereof.
  • a channel processor may determine reference signal received power (RSRP) , received signal strength indicator (RSSI) , reference signal received quality (RSRQ) , channel quality indicator (CQI) , and/or the like.
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • RSRQ reference signal received quality
  • CQI channel quality indicator
  • one or more components of UE 120 may be included in a housing 284.
  • Network controller 130 may include communication unit 294, controller/processor 290, and memory 292.
  • Network controller 130 may include, for example, one or more devices in a core network.
  • Network controller 130 may communicate with base station 110 via communication unit 294.
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, CQI, and/or the like) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, and/or the like) , and transmitted to base station 110.
  • the UE 120 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 252, modulators and/or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and/or TX MIMO processor 266.
  • the transceiver may be used by a processor (e.g., controller/processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 5-7.
  • the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120.
  • Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240.
  • Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244.
  • Base station 110 may include a scheduler 246 to schedule UEs 120 for downlink and/or uplink communications.
  • the base station 110 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 234, modulators and/or demodulators 232, MIMO detector 236, receive processor 238, transmit processor 220, and/or TX MIMO processor 230.
  • the transceiver may be used by a processor (e.g., controller/processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 5-7.
  • Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with CLI measurement using SRS resources, as described in more detail elsewhere herein.
  • controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 600 of Fig. 6, process 700 of Fig. 7, and/or other processes as described herein.
  • Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively.
  • memory 242 and/or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code, program code, and/or the like) for wireless communication.
  • the one or more instructions when executed (e.g., directly, or after compiling, converting, interpreting, and/or the like) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, process 600 of Fig. 6, process 700 of Fig. 7, and/or other processes as described herein.
  • executing instructions may include running the instructions, converting the instructions, compiling the instructions, interpreting the instructions, and/or the like.
  • a mobile station may include means for receiving a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set, means for determining that an SRS RSRP measurement of the CLI is not permitted, means for measuring am RSSI of the CLI using the SRS resource set based at least in part on determining that the CLI SRS RSRP measurement is not permitted and/or the like.
  • such means may include one or more components of UE 120 described in connection with Fig. 2, such as controller/processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and/or the like.
  • base station 110 may include means for transmitting, to a mobile station, a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set, means for receiving, from the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set, and/or the like.
  • such means may include one or more components of base station 110 described in connection with Fig. 2, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller/processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and/or the like.
  • While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components.
  • the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of controller/processor 280.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • Fig. 3 is a diagram illustrating an example 300 associated with CLI detection and mitigation, in accordance with various aspects of the present disclosure.
  • a base station 110 may configure a TDD configuration (e.g., a TDD pattern) with more uplink transmission time intervals (TTIs) (e.g., frames, subframes, slots, mini-slots, symbols, and/or the like) for a UE 120 when the UE 120 has uplink data to transmit, and may configure a TDD configuration with more downlink TTIs for the UE 120 when the UE 120 has downlink data to receive.
  • TDD configuration may be dynamically configured to modify the allocation of uplink TTIs and downlink TTIs used for communication between the base station 110 and the UE 120.
  • These communications in different transmission directions (e.g., downlink vs. uplink) in the same TTI may interfere with one another, which may be referred to as CLI.
  • the downlink communication 310 transmitted by the first base station 110-1 may be received by the second base station 110-2, and may interfere with reception, by the second base station 110-2, of the uplink communication 320 from the second UE 120-2.
  • This may be referred to as downlink-to-uplink (DL-to-UL) interference, base station to base station interference, gNB to gNB interference, and/or the like.
  • the uplink communication 320 transmitted by the second UE 120-2 may be received by the first UE 120-1, and may interfere with reception, by the first UE 120-1, of the downlink communication 310 from the first base station 110-1.
  • This may be referred to as uplink-to-downlink (UL-to-DL) interference, UE to UE interference, and/or the like.
  • This UE to UE interference may occur and/or may increase when the first UE 120-1 and the second UE 120-2 are in close proximity and may be avoided or mitigated by preventing scheduling of the UEs 120 in different transmission directions in the same TTI.
  • Fig. 3 is provided as an example. Other examples are possible and may differ from what was described with respect to Fig. 3.
  • Fig. 4 is a diagram illustrating examples 400 and 450 associated with UE to UE CLI, in accordance with various aspects of the present disclosure.
  • Example 400 illustrates an example of CLI caused by a first UE 120 transmitting uplink data in a first serving cell (e.g., cell 1) in a same TTI that a second UE 120 is receiving downlink data in a second serving cell (e.g., cell 2) .
  • Example 450 illustrates an example of CLI between UEs 120 associated with a same serving cell (e.g., cell 1) .
  • a first UE 120 and a second UE 120 may be located at a cell edge of two cells (e.g., cell 1 and cell 2) .
  • the first UE 120 may transmit an uplink transmission to a first base station 110 that is associated with a first serving cell (e.g., cell 1) .
  • the first UE 120 may transmit the uplink transmission in a TTI configured by the first base station 110.
  • the second UE 120 may receive a downlink transmission from a second base station 110 that is associated with a second serving cell (e.g., cell 2) .
  • the second UE 120 may receive the downlink transmission during the same TTI that the first UE 120 is transmitting the uplink transmission.
  • the uplink transmission transmitted by the first UE 120 may cause CLI experience by the second UE 120 that is attempted to receive the downlink transmission.
  • at least one uplink symbol associated with the uplink transmission may collide with at least one downlink symbol associated with the downlink transmission.
  • the first UE 120 may be referred to as an aggressor UE 120 or a transmitting UE 120.
  • the second UE 120 may be referred to as a victim UE 120 or a receiving UE 120.
  • a first UE 120 may transmit an uplink transmission to a base station 110 that is associated with a serving cell (e.g., cell 1) .
  • the first UE 120 may transmit the uplink transmission in a TTI configured by the base station 110.
  • a second UE 120 may receive a downlink transmission from the base station 110 (e.g., that is associated with cell 1) .
  • the first UE 120 and the second UE 120 may be associated with the same serving cell.
  • the second UE 120 may receive the downlink transmission during the same TTI that the first UE 120 is transmitting the uplink transmission.
  • the uplink transmission transmitted by the first UE 120 may cause CLI experience by the second UE 120 that is attempted to receive the downlink transmission.
  • the first UE 120 may be an transmitting UE 120 and the second UE 120 may be a receiving UE 120.
  • a base station 110 may configure a receiving UE 120 measure CLI.
  • the measurements of the CLI may be used by the base station 110 to reduce, mitigate, and/or eliminate CLI with downlink reception of the receiving UE (e.g., by adjusting a transmit power of a transmitting UE 120, by adjusting a TTI for the transmitting UE 120 and/or the receiving UE 120, and/or the like) .
  • the base station 110 may enable the receiving UE 120 to measure the CLI by configuring a CLI measurement resource.
  • the CLI measurement resource may correspond to an uplink transmission from a transmitting UE 120. If the receiving UE 120 receives a downlink transmission in resources that overlap (e.g., in the time domain and the frequency domain) with the CLI measurement resource, the receiving UE 120 may measure the CLI measurement resource to determine a measurement of the CLI.
  • the CLI measurements and corresponding CLI measurement reports may be layer 3 measurements and/or layer 3 measurement reports.
  • a receiving UE 120 may measure CLI only if the receiving UE 120 is configured with a CLI measurement resource (e.g., by the base station 110) .
  • the base station 110 may configure the CLI measurement resource in a radio resource control (RRC) configuration (e.g., in a MeasObjectCLI information element of an RRC configuration) .
  • RRC radio resource control
  • the CLI measurement resource may be a CLI received signal strength indicator (RSSI) measurement resource or a CLI sounding reference signal (SRS) reference signal received power (RSRP) measurement resource. If the receiving UE 120 is configured with a CLI RSSI measurement resource, the receiving UE 120 may measure an RSSI measurement value of the CLI. If the receiving UE 120 is configured with a CLI SRS RSRP measurement resource, the receiving UE 120 may measure an RSRP measurement value of the CLI.
  • RSSI received signal strength indicator
  • SRS CLI sounding reference signal
  • An RSRP measurement value may be more accurate and/or provide more information associated with the CLI than an RSSI measurement value (e.g., as the receiving UE 120 demodulates an SRS resource when performing the RSRP measurement of the CLI, whereas the receiving UE 120 does not demodulate a resource when performing the RSSI measurement of the CLI) .
  • a CLI SRS RSRP measurement may improve the ability of the base station 110 to locate and/or identify a transmitting UE 120 that is causing the CLI; whereas a CLI RSSI measurement may only indicate a received power associated with the CLI.
  • a receiving UE 120 may only perform CLI SRS RSRP measurements if certain conditions are met. For example, a receiving UE 120 may only perform CLI SRS RSRP measurements if a subcarrier spacing (SCS) of the SRS resource is the same as the SRS of an active downlink bandwidth part (BWP) of the receiving UE 120 and if the SRS resource is fully confined within a bandwidth of the active downlink BWP of the receiving UE 120.
  • SCS subcarrier spacing
  • a receiving UE 120 may perform CLI RSSI measurements using the SCS of the active downlink BWP using the CLI RSSI measurement resource that is within the bandwidth of the active downlink BWP (e.g., the receiving UE 120 may perform CLI-RSSI measurements with the SCS of the active downlink BWP within the configured CLI-RSSI measurement resource in the active downlink BWP regardless of the reference SCS of the CLI-RSSI measurement resource) .
  • the base station 110 must transmit additional signaling (e.g., RRC signaling) to configure a CLI RSSI measurement resource. As a result, a signaling overhead associated with measuring CLI is increased.
  • a UE 120 may be configured with a CLI SRS RSRP measurement resource for measuring CLI. If the UE 120 is permitted to perform the CLI SRS RSRP measurements, the UE 120 may measure the SRS RSRP associated with the CLI and report the RSRP measurement values to the base station 110. If the UE 120 is not permitted to perform the CLI SRS RSRP measurements, the UE 120 may perform a fallback CLI measurement procedure that includes measuring the RSSI of the CLI using the SRS resource set associated with the CLI SRS RSRP measurement resource.
  • the UE 120 may indicate a capability of performing the fallback CLI measurement procedure in a capability message or in a CLI measurement report that includes the RSSI measurement values.
  • the base station 110 may configure the UE 120 with a CLI measurement resource that indicates the fallback CLI measurement procedure.
  • the base station 110 may indicate the fallback CLI measurement procedure to the UE 120 using additional signaling associated with the RRC configuration that configures the CLI SRS RSRP measurement resource.
  • the UE 120 is enabled to alternatively perform a CLI RSSI measurement, when a CLI SRS RSRP measurement is not permitted, without an additional RRC configuration from the base station 110 associated with configuring a CLI RSSI measurement resource.
  • the UE 120 is enabled to perform a measurement of the CLI, thereby increasing the ability of the base station 110 to determine a level of CLI experienced by the UE 120, identify a transmitting UE 120 (e.g., an aggressor UE 120) , mitigate the CLI, and/or the like. Moreover, signaling overhead associated with measuring CLI is reduced.
  • Fig. 5 is a diagram illustrating an example 500 associated with CLI measurement using SRS resources, in accordance with various aspects of the present disclosure.
  • example 500 includes communication between a base station 110 and a UE 120.
  • the base station 110 and the UE 120 may be included in a wireless network, such as wireless network 100.
  • the base station 110 and the UE 120 may communicate on a wireless access link, which may include an uplink and a downlink.
  • the UE 120 may be a receiving UE 120 (e.g., a victim UE 120) that is experiencing CLI based at least in part of a transmission from a transmitting UE 120 (e.g., an aggressor UE 120) (not shown in Fig. 5) , as described above with respect to Figs. 3 and 4.
  • the UE 120 may be referred to as a “mobile station. ”
  • the UE 120 may indicate one or more capabilities of the UE 120 to the base station 110 using capability signaling. For example, the UE 120 may transmit, and the base station 110 may receive, a capability message indicating that the UE 120 supports a fallback CLI measurement procedure.
  • the indication that the UE 120 supports the fallback CLI measurement procedure may indicate a capability of the UE 120 to perform a fallback CLI measurement procedure when configured with a CLI SRS RSRP measurement configuration.
  • the fallback CLI measurement procedure may include receiving a configuration for a CLI measurement procedure that indicates that the UE 120 is the measured RSRP of CLI using an SRS resource set (e.g., CLI SRS RSRP measurements) , determining that the CLI SRS RSRP measurements are not permitted, and measuring an RSSI of the CLI using the SRS resource set (e.g., without receiving an additional configuration from the base station 110 of a CLI RSSI measurement resource) .
  • an SRS resource set e.g., CLI SRS RSRP measurements
  • reporting the UE 120 capability indicating that the UE 120 supports the fallback CLI measurement procedure may be optional (e.g., as indicated by the dashed line in Fig. 5) .
  • the UE 120 may not transmit a capability message indicating that the UE 120 supports the fallback CLI measurement procedure (e.g., even if the UE 120 is capable of supporting the fallback CLI measurement procedure) .
  • the base station 110 may transmit, and the UE 120 may receive, a configuration for a CLI measurement procedure indicating a CLI measurement resource.
  • the base station 110 may transmit the configuration for the CLI measurement procedure using RRC signaling.
  • the CLI measurement resource may include an SRS resource set for measuring RSRP of CLI using the SRS resource set (e.g., the CLI measurement resource may be an SRS RSRP measurement resource) .
  • the CLI measurement procedure may be a CLI SRS RSRP measurement procedure.
  • the CLI measurement resource may indicate the fallback CLI measurement procedure.
  • the CLI measurement resource may be an SRS RSRP measurement resource that indicates the fallback CLI measurement procedure (e.g., that indicates that the UE 120 is to measure RSSI of the CLI using the SRS resource set if an SRS RSRP measurement is not permitted) .
  • SRS RSRP measurement resources may include two types. A first type of SRS RSRP measurement resource may indicate the SRS resource set and that the UE 120 is to measure the RSRP of CLI using the SRS resource set (e.g., and may not indicate the fallback CLI measurement procedure) .
  • a second type of SRS RSRP measurement resource may indicate the SRS resource set and that the UE 120 is to measure the RSRP of CLI using the SRS resource set and may indicate the fallback CLI measurement procedure if the SRS RSRP measurement is not permitted. If the configuration indicates the second type of SRS RSRP measurement resource, the UE 120 may perform the fallback CLI measurement procedure when the SRS RSRP measurement is not permitted (e.g., without additional signaling from the base station 110 configuring one or more additional CLI measurement resources) , as described in more detail below.
  • the base station 110 may indicate the fallback CLI measurement procedure to the UE 120.
  • the base station 110 may configure the UE 120 with the first type of SRS RSRP measurement resource in an RRC configuration.
  • the base station 110 may indicate the fallback CLI measurement procedure using RRC signaling.
  • the indication of the fallback CLI measurement procedure may be included in (e.g., embedded in) the RRC message that carries the configuration that indicates the SRS RSRP measurement resource (e.g., thereby indicating that the SRS RSRP measurement resource is associated with a fallback CLI measurement procedure) .
  • the base station 110 may indicate the fallback CLI measurement procedure using medium access control (MAC) control element (MAC-CE) signaling or downlink control information (DCI) signaling.
  • MAC medium access control
  • MAC-CE control element
  • DCI downlink control information
  • the base station 110 may configure the SRS RSRP measurement resource using RRC signaling and may indicate the fallback CLI measurement procedure using MAC-CE signaling and/or DCI signaling. In this way, the base station 110 may dynamically indicate an SRS RSRP measurement resource that is associated with a fallback CLI measurement procedure.
  • the UE 120 may determine whether an SRS RSRP measurement of the CLI is permitted.
  • the UE 120 may determine whether the SRS RSRP measurement is permitted based at least in part on an SCS of the SRS resource set and an SCS of an active downlink BWP (e.g., configured by the base station 110) .
  • the UE 120 may determine that the SRS RSRP measurement is not permitted based at least in part on determining that the SCS of the SRS resource set is not the same as the SCS of the active downlink BWP.
  • the UE 120 may determine that the SRS RSRP measurement is not permitted based at least in part on determining that the SRS resource set is not fully confined within a bandwidth of the active downlink BWP (e.g., if the SRS resource set occupies frequency domain resources that are outside the frequency domain resources of the active downlink BWP) .
  • the UE 120 may determine that the SRS RSRP measurement is permitted based at least in part on determining that the SCS of the SRS resource set is the same as the SCS of the active downlink BWP and determining that the SRS resource set is fully confined within a bandwidth of the active downlink BWP (e.g., both conditions may be required for the UE 120 to determine that the SRS RSRP measurement is permitted) .
  • the UE 120 may perform the CLI measurement procedure by measuring SRS RSRP of the CLI based at least in part on determining that the SRS RSRP measurement is permitted, as described above. For example, the UE 120 may perform one or more RSRP measurements of the CLI using the SRS resource set. As shown by reference number 525, the UE 120 may transmit, and the base station 110 may receive, a CLI measurement report indicating one or more SRS RSRP measurements of the CLI (e.g., based at least in part on the UE 120 determining that the SRS RSRP measurement is not permitted) .
  • the SRS RSRP measurements may be layer 3 measurements. Similarly, the CLI measurement report indicating one or more SRS RSRP measurements may be a layer 3 measurement report.
  • the UE 120 may perform the fallback CLI measurement procedure based at least in part on determining that the SRS RSRP measurement is not permitted, as described above. For example, the UE 120 may perform CLI RSSI measurements of the CLI using the SRS resource set based at least in part on determining that the SRS RSRP measurement is not permitted. For example, the UE 120 may measure the RSSI of the CLI using the SCS of the active downlink BWP.
  • the UE 120 may measure the RSSI of the CLI using the SRS resource set that overlaps in the frequency domain with the bandwidth of the active downlink BWP (e.g., if the SRS resource set only partially overlaps in the frequency domain with the bandwidth of the active downlink BWP, the UE 120 may measure the RSSI of the CLI using the portion of the SRS resource set that overlaps in the frequency domain with the bandwidth of the active downlink BWP) .
  • the UE 120 may transmit, and the base station 110 may receive, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set (e.g., based at least in part on the UE 120 determining that the SRS RSRP measurement is not permitted) .
  • the UE 120 may transmit either a CLI measurement report indicating one or more SRS RSRP measurements (e.g., as described above with respect to reference number 525) or a CLI measurement report indicating one or more RSSI measurements (e.g., based at least in part on whether the UE 120 determines if the SRS RSRP measurements are permitted) .
  • the UE 120 may indicate that the fallback CLI measurement procedure was used when transmitting the CLI measurement report.
  • the CLI measurement report indicating the one or more RSSI measurements of the CLI performed using the SRS resource set may include an indication that the fallback CLI measurement procedure was used to perform the measurement of the CLI.
  • the UE 120 may indicate that the fallback CLI measurement procedure was used in the CLI measurement report.
  • the base station 110 may determine that the fallback CLI measurement procedure was used (e.g., in a scenario in which the base station 110 does not configure or indicate the fallback CLI measurement procedure and the UE 120 has not previously indicated a capability to support the fallback CLI measurement procedure) .
  • the base station 110 may determine that the fallback CLI procedure is used by the UE 120 based at least in part on configuring the UE 120 with a CLI measurement resource that is associated with the fallback CLI measurement procedure (e.g., the second type of SRS RSRP measurement resource, as described above) , based at least in part on indicating the fallback CLI measurement procedure to the UE 120 (e.g., using RRC signaling, MAC-CE signaling, and/or DCI signaling, as described above) , based at least in part on receiving a capability message from the UE 120 indicating that the UE 120 supports the fallback CLI measurement procedure, based at least in part on receiving the CLI measurement report that includes an indication that the fallback CLI measurement procedure was used, and/or the like.
  • a CLI measurement resource that is associated with the fallback CLI measurement procedure
  • the UE 120 e.g., the second type of SRS RSRP measurement resource, as described above
  • the UE 120 may be associated with a maximum quantity of resources that the UE 120 can support for CLI RSSI measurements.
  • the maximum quantity of resources that the UE 120 can support for CLI RSSI measurements may be indicated by the UE 120 to the base station 110 using capability report signaling.
  • a quantity of resources across all component carriers associated with the UE 120 configured to measure RSSI of CLI may not exceed 64.
  • the base station 110 may count a quantity of resources (e.g., a quantity of SRS resources) used to perform the one or more RSSI measurements towards the maximum quantity of resources that the UE 120 can support for CLI RSSI measurements.
  • a quantity of resources e.g., a quantity of SRS resources
  • the base station 110 may not directly configure the UE 120 to perform CLI RSSI measurements (e.g., as the CLI RSSI measurements using the SRS resource set are associated with the fallback CLI measurement procedure) , the base station 110 may still count the quantity of resources used by the UE 120 to perform CLI RSSI measurements using the SRS resource set (e.g., in the scenario that the UE 120 performs the fallback CLI measurement procedure) . In this way, the base station 110 may ensure that the maximum quantity of resources that the UE 120 can support for CLI RSSI measurements is not exceeded.
  • the UE 120 is enabled to alternatively perform a CLI RSSI measurement, when a CLI SRS RSRP measurement is not permitted, without an additional RRC configuration from the base station 110 associated with configuring a CLI RSSI measurement resource. Therefore, the UE 120 is enabled to perform a measurement of the CLI, thereby increasing the ability of the base station 110 to determine a level of CLI experienced by the UE 120, identify a transmitting UE 120 (e.g., an aggressor UE 120) , mitigate the CLI, and/or the like. Moreover, signaling overhead associated with measuring CLI is reduced.
  • Fig. 5 is provided as an example. Other examples may differ from what is described with respect to Fig. 5.
  • Fig. 6 is a diagram illustrating an example process 600 performed, for example, by a mobile station, in accordance with various aspects of the present disclosure.
  • Example process 600 is an example where the mobile station (e.g., UE 120) performs operations associated with CLI measurement using SRS resources.
  • process 600 may include receiving a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set (block 610) .
  • the mobile station e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller/processor 280, and/or memory 282
  • process 600 may include determining that an SRS RSRP measurement of the CLI is not permitted (block 620) .
  • the mobile station e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, and/or memory 282
  • process 600 may include measuring an RSSI of the CLI using the SRS resource set based at least in part on determining that the CLI SRS RSRP measurement is not permitted (block 630) .
  • the mobile station e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, and/or memory 282
  • Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • determining that the SRS RSRP measurement of the CLI is not permitted comprises at least one of determining that an SCS of the SRS resource set is not the same as an SCS of an active downlink bandwidth part, or determining that the SRS resource set is not fully confined within a bandwidth of the active downlink bandwidth part.
  • the configuration for the CLI measurement procedure indicates that the SRS resource set for measuring the RSRP of the CLI is associated with a fallback CLI measurement procedure.
  • the fallback CLI measurement procedure indicates that an SRS RSSI measurement of the CLI is to be performed when the SRS RSRP measurement of the CLI is not permitted.
  • measuring the RSSI of the CLI using the SRS resource set comprises measuring the RSSI of the CLI using the SRS resource set in accordance with a fallback CLI measurement procedure.
  • receiving the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises receiving the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set.
  • receiving the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises receiving an indication of a fallback CLI measurement procedure associated with the CLI measurement procedure.
  • receiving the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises receiving the configuration for the CLI measurement procedure, and receiving the indication of the fallback CLI measurement procedure associated with the CLI measurement procedure, wherein the indication is included in an RRC message that carries the configuration.
  • receiving the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises receiving the configuration for the CLI measurement procedure, and receiving the indication of the fallback CLI measurement procedure associated with the CLI measurement procedure.
  • process 600 includes transmitting, by the mobile station, a capability message indicating that the mobile station supports a fallback CLI measurement procedure.
  • process 600 includes transmitting, by the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI.
  • transmitting the CLI measurement report indicating the one or more RSSI measurements of the CLI comprises transmitting a CLI measurement report that includes an indication that a fallback CLI measurement procedure was used to perform the measurement of the CLI.
  • a quantity of CLI RSSI resources used when measuring the RSSI of the CLI using the SRS resource set are counted toward a maximum quantity of CLI RSSI resources that can be supported by the mobile station.
  • process 600 includes measuring, by the mobile station, an RSRP of the CLI using the SRS resource set based at least in part on a determination that the CLI SRS RSRP measurement is permitted.
  • process 600 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 6. Additionally, or alternatively, two or more of the blocks of process 600 may be performed in parallel.
  • Fig. 7 is a diagram illustrating an example process 700 performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Example process 700 is an example where the base station (e.g., base station 110) performs operations associated with CLI measurement using SRS resources.
  • process 700 may include transmitting, to a mobile station, a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set (block 710) .
  • the base station e.g., using transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, controller/processor 240, memory 242, and/or scheduler 246) may transmit, to a mobile station, a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set, as described above.
  • process 700 may include receiving, from the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set (block 720) .
  • the base station e.g., using antenna 234, demodulator 232, MIMO detector 236, receive processor 238, controller/processor 240, and/or memory 242 may receive, from the mobile station, a CLI measurement report indicating one or more RSSI measurements of the CLI performed using the SRS resource set, as described above.
  • Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • receiving the CLI measurement report indicating one or more RSSI measurements of the CLI is based at least in part on a determination by the mobile station that an SRS RSRP measurement of the CLI is not permitted.
  • the configuration for the CLI measurement procedure indicates that the SRS resource set for measuring the RSRP of the CLI is associated with a fallback CLI measurement procedure.
  • the fallback CLI measurement procedure indicates that an SRS RSSI measurement of the CLI is to be performed by the mobile station when the SRS RSRP measurement of the CLI is not permitted.
  • transmitting the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises transmitting the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set.
  • transmitting the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises transmitting, to the mobile station, an indication of a fallback CLI measurement procedure associated with the CLI measurement procedure.
  • transmitting the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises transmitting the configuration for the CLI measurement procedure, and transmitting the indication of the fallback CLI measurement procedure associated with the CLI measurement procedure, wherein the indication is included in an RRC message that carries the configuration.
  • transmitting the configuration for the CLI measurement procedure indicating the SRS resource set for measuring the RSRP of CLI using the SRS resource set comprises transmitting the configuration for the CLI measurement procedure, and transmitting the indication of the fallback CLI measurement procedure associated with the CLI measurement procedure.
  • process 700 includes receiving, by the base station and from the mobile station, a capability message indicating that the mobile station supports a fallback CLI measurement procedure.
  • receiving the CLI measurement report indicating the one or more RSSI measurements of the CLI comprises receiving, from the mobile station, a CLI measurement report that includes an indication that a fallback CLI measurement procedure was used by the mobile station to perform the measurement of the CLI.
  • process 700 includes counting a quantity of CLI RSSI resources used by the mobile station when measuring the RSSI of the CLI using the SRS resource set toward a maximum quantity of CLI RSSI resources that can be supported by the mobile station.
  • process 700 includes receiving, by the base station and from the mobile station, a CLI measurement report indicating one or more RSRP measurements of the CLI performed using the SRS resource set based at least in part on a determination by the mobile station that an SRS RSRP measurement of the CLI is permitted.
  • process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.
  • Fig. 8 is a block diagram of an example apparatus 800 for wireless communication.
  • the apparatus 800 may be a mobile station, or a mobile station may include the apparatus 800.
  • the apparatus 800 includes a reception component 802 and a transmission component 804, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 800 may communicate with another apparatus 806 (such as a UE, a base station, or another wireless communication device) using the reception component 802 and the transmission component 804.
  • the apparatus 800 may include one or more of a determination component 808 and/or a measurement component 810, among other examples.
  • the apparatus 800 may be configured to perform one or more operations described herein in connection with Fig. 5. Additionally or alternatively, the apparatus 800 may be configured to perform one or more processes described herein, such as process 600 of Fig. 6, or a combination thereof.
  • the apparatus 800 and/or one or more components shown in Fig. 8 may include one or more components of the mobile station and/or UE described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 8 may be implemented within one or more components described above in connection with Fig. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 802 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 806.
  • the reception component 802 may provide received communications to one or more other components of the apparatus 800.
  • the reception component 802 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 806.
  • the reception component 802 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the mobile station described above in connection with Fig. 2.
  • the transmission component 804 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 806.
  • one or more other components of the apparatus 806 may generate communications and may provide the generated communications to the transmission component 804 for transmission to the apparatus 806.
  • the transmission component 804 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 806.
  • the transmission component 804 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the mobile station described above in connection with Fig. 2. In some aspects, the transmission component 804 may be collocated with the reception component 802 in a transceiver.
  • the reception component 802 may receive a configuration for a CLI measurement procedure indicating an SRS resource set for measuring an RSRP of CLI using the SRS resource set.
  • the determination component 808 may determine that an SRS RSRP measurement of the CLI is not permitted.
  • the determination component 808 may include a receive processor, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the mobile station and/or UE described above in connection with Fig. 2.
  • the measurement component 810 may measure an RSSI of the CLI using the SRS resource set based at least in part on determining that the CLI SRS RSRP measurement is not permitted.
  • the measurement component 810 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the mobile station and/or UE described above in connection with Fig. 2.
  • Fig. 8 The number and arrangement of components shown in Fig. 8 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 8. Furthermore, two or more components shown in Fig. 8 may be implemented within a single component, or a single component shown in Fig. 8 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Fig. 8 may perform one or more functions described as being performed by another set of components shown in Fig. 8.
  • Fig. 9 is a block diagram of an example apparatus 900 for wireless communication.
  • the apparatus 900 may be a base station, or a base station may include the apparatus 900.
  • the apparatus 900 includes a reception component 902 and a transmission component 904, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using the reception component 902 and the transmission component 904.
  • the apparatus 900 may include one or more of a CLI management component 908, among other examples.
  • the apparatus 900 may be configured to perform one or more operations described herein in connection with Fig. 5. Additionally or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as process 700 of Fig. 7, or a combination thereof.
  • the apparatus 900 and/or one or more components shown in Fig. 9 may include one or more components of the base station described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 9 may be implemented within one or more components described above in connection with Fig. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 902 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 906.
  • the reception component 902 may provide received communications to one or more other components of the apparatus 900.
  • the reception component 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 906.
  • the reception component 902 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.
  • the transmission component 904 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 906.
  • one or more other components of the apparatus 906 may generate communications and may provide the generated communications to the transmission component 904 for transmission to the apparatus 906.
  • the transmission component 904 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 906.
  • the transmission component 904 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2. In some aspects, the transmission component 904 may be collocated with the reception component 902 in a transceiver.
  • the transmission component 904 may transmit, to a mobile station, a configuration for a cross link interference (CLI) measurement procedure indicating a sounding reference signal (SRS) resource set for measuring a reference signal received power (RSRP) of CLI using the SRS resource set.
  • the reception component 902 may receive, from the mobile station, a CLI measurement report indicating one or more received signal strength indicator (RSSI) measurements of the CLI performed using the SRS resource set.
  • the CLI management component 908 may determine a fallback CLI measurement procedure.
  • the CLI management component 908 may count a quantity of CLI RSSI resources used by the mobile station when measuring the RSSI of the CLI using the SRS resource set toward a maximum quantity of CLI RSSI resources that can be supported by the mobile station.
  • the CLI management component 908 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.
  • Fig. 9 The number and arrangement of components shown in Fig. 9 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 9. Furthermore, two or more components shown in Fig. 9 may be implemented within a single component, or a single component shown in Fig. 9 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Fig. 9 may perform one or more functions described as being performed by another set of components shown in Fig. 9.
  • the term “component” is intended to be broadly construed as hardware, firmware, and/or a combination of hardware and software.
  • a processor is implemented in hardware, firmware, and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware, firmware, and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to specific software code-it being understood that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.
  • satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, and/or the like.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
  • the phrase “only one” or similar language is used.
  • the terms “has, ” “have, ” “having, ” and/or the like are intended to be open-ended terms.
  • the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.
  • the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or, ” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of” ) .

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

Abstract

Divers aspects de la présente divulgation portent d'une manière générale sur la communication sans fil. Selon certains aspects, une station mobile peut recevoir une configuration pour une procédure de mesure d'interférence de liaison croisée (CLI) indiquant un ensemble de ressources de signal de référence de sondage (SRS) pour mesurer une puissance reçue de signal de référence (RSRP) de CLI à l'aide de l'ensemble de ressources SRS. La station mobile peut déterminer qu'une mesure de RSRP de SRS de la CLI n'est pas autorisée. La station mobile peut mesurer un indicateur d'intensité de signal reçu de la CLI à l'aide de l'ensemble de ressources SRS sur la base, au moins en partie, de la détermination selon laquelle la mesure de RSRP de SRS de la CLI n'est pas autorisée. La divulgation concerne également de nombreux autres aspects.
PCT/CN2020/112015 2020-08-28 2020-08-28 Mesure d'interférence de liaison croisée à l'aide de ressources de signal de référence de sondage WO2022041101A1 (fr)

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Citations (4)

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CN109219970A (zh) * 2017-05-05 2019-01-15 联发科技股份有限公司 移动通信中跨链路干扰测量方法及设备
US20200112420A1 (en) * 2017-06-09 2020-04-09 Zte Corporation System and method for measuring and controlling cross-link interference in wireless communications
US20200169341A1 (en) * 2018-11-27 2020-05-28 Lg Electronics Inc. Measuring an interference from a neighboring device
WO2020146331A1 (fr) * 2019-01-11 2020-07-16 Qualcomm Incorporated Systèmes de transmission de mesure d'interférence de liaison croisée

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CN109219970A (zh) * 2017-05-05 2019-01-15 联发科技股份有限公司 移动通信中跨链路干扰测量方法及设备
US20200112420A1 (en) * 2017-06-09 2020-04-09 Zte Corporation System and method for measuring and controlling cross-link interference in wireless communications
US20200169341A1 (en) * 2018-11-27 2020-05-28 Lg Electronics Inc. Measuring an interference from a neighboring device
WO2020146331A1 (fr) * 2019-01-11 2020-07-16 Qualcomm Incorporated Systèmes de transmission de mesure d'interférence de liaison croisée

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