WO2021223212A1 - Mise à jour de signal de référence d'affaiblissement de trajet pour de multiples ressources - Google Patents

Mise à jour de signal de référence d'affaiblissement de trajet pour de multiples ressources Download PDF

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Publication number
WO2021223212A1
WO2021223212A1 PCT/CN2020/089153 CN2020089153W WO2021223212A1 WO 2021223212 A1 WO2021223212 A1 WO 2021223212A1 CN 2020089153 W CN2020089153 W CN 2020089153W WO 2021223212 A1 WO2021223212 A1 WO 2021223212A1
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WIPO (PCT)
Prior art keywords
srs
pathloss
update
configuration
identification information
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PCT/CN2020/089153
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English (en)
Inventor
Yan Zhou
Fang Yuan
Tao Luo
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Qualcomm Incorporated
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Priority to PCT/CN2020/089153 priority Critical patent/WO2021223212A1/fr
Publication of WO2021223212A1 publication Critical patent/WO2021223212A1/fr

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    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for updating a pathloss reference signal configuration for multiple reference signal resources.
  • 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 communication 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 may include receiving an update message that indicates an update to a pathloss reference signal (RS) configuration of the UE for sounding RSs (SRSs) .
  • the update may indicate a pathloss RS identifier (ID) that is to be applied to a plurality of SRS resources that are identified by SRS identification information.
  • the method may include updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmitting an SRS using the pathloss RS configuration.
  • a method of wireless communication may include generating an update message that indicates an update to a pathloss RS configuration of a UE for SRSs.
  • the update may indicate a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information.
  • the method may include transmitting the update message to the UE to update the pathloss RS configuration of the UE for SRSs.
  • a method of wireless communication may include receiving an update message that indicates an update to a pathloss RS configuration of the UE for one or more of SRSs or physical uplink control channel (PUCCH) transmissions.
  • the update may indicate a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, and the SRS identification information may identify a plurality of SRS resource sets, a plurality of SRS resource indicators (SRIs) , a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof.
  • the method may include updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmitting one of an SRS or a PUCCH transmission using the pathloss RS configuration.
  • a method of wireless communication may include generating an update message that indicates an update to a pathloss RS configuration of a UE for one or more of SRSs or PUCCH transmissions.
  • the update may indicate a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, and the SRS identification information may identify a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof.
  • the method may include updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmitting the update message to the UE to update the pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions.
  • a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory.
  • the memory and the one or more processors may be configured to receive an update message that indicates an update to a pathloss RS configuration of the UE for SRSs, the update indicating a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information, update the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmit an SRS using the pathloss RS configuration.
  • a base station for wireless communication may include a memory and one or more processors operatively coupled to the memory.
  • the memory and the one or more processors may be configured to generate an update message that indicates an update to a pathloss RS configuration of a UE for SRSs.
  • the update may indicate a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information.
  • the memory and the one or more processors may be configured to transmit the update message to the UE to update the pathloss RS configuration of the UE for SRSs.
  • a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory.
  • the memory and the one or more processors may be configured to receive an update message that indicates an update to a pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions.
  • the update may indicate a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, and the SRS identification information may identify a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof.
  • the memory and the one or more processors may be configured to update the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmit one of an SRS or a PUCCH transmission using the pathloss RS configuration.
  • a base station for wireless communication may include a memory and one or more processors operatively coupled to the memory.
  • the memory and the one or more processors may be configured to generate an update message that indicates an update to a pathloss RS configuration of a UE for one or more of SRSs or PUCCH transmissions.
  • the update may indicate a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, and the SRS identification information may identify a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof.
  • the memory and the one or more processors may be configured to update the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmit the update message to the UE to update the pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions.
  • a non-transitory computer-readable medium may store one or more instructions for wireless communication.
  • the one or more instructions when executed by one or more processors of a UE, may cause the one or more processors to receive an update message that indicates an update to a pathloss RS configuration of the UE for SRSs, the update indicating a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information, update the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmit an SRS using the pathloss RS configuration.
  • a non-transitory computer-readable medium may store one or more instructions for wireless communication.
  • the one or more instructions when executed by one or more processors of a base station, may cause the one or more processors to generate an update message that indicates an update to a pathloss RS configuration of a UE for SRSs, the update indicating a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information, and transmit the update message to the UE to update the pathloss RS configuration of the UE for SRSs.
  • a non-transitory computer-readable medium may store one or more instructions for wireless communication.
  • the one or more instructions when executed by one or more processors of a UE, may cause the one or more processors to receive an update message that indicates an update to a pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions, the update indicating a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, the SRS identification information identifying a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof, update the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmit one of an SRS or a PUCCH transmission using the pathloss RS configuration.
  • a non-transitory computer-readable medium may store one or more instructions for wireless communication.
  • the one or more instructions when executed by one or more processors of a base station, may cause the one or more processors to generate an update message that indicates an update to a pathloss RS configuration of a UE for one or more of SRSs or PUCCH transmissions, the update indicating a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, the SRS identification information identifying a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof, update the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and transmit the update message to the UE to update the pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions.
  • an apparatus for wireless communication may include means for receiving an update message that indicates an update to a pathloss RS configuration of the apparatus for SRSs, the update indicating a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information, means for updating the pathloss RS configuration of the apparatus for the SRS resources identified by the SRS identification information, and means for transmitting an SRS using the pathloss RS configuration.
  • an apparatus for wireless communication may include means for generating an update message that indicates an update to a pathloss RS configuration of a UE for SRSs, the update indicating a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information, and means for transmitting the update message to the UE to update the pathloss RS configuration of the UE for SRSs.
  • an apparatus for wireless communication may include means for receiving an update message that indicates an update to a pathloss RS configuration of the apparatus for one or more of SRSs or PUCCH transmissions, the update indicating a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, the SRS identification information identifying a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof, means for updating the pathloss RS configuration of the apparatus for the SRS resources identified by the SRS identification information, and means for transmitting one of an SRS or a PUCCH transmission using the pathloss RS configuration.
  • an apparatus for wireless communication may include means for generating an update message that indicates an update to a pathloss RS configuration of a UE for one or more of SRSs or PUCCH transmissions, the update indicating a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, the SRS identification information identifying a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof, means for updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, and means for transmitting the update message to the UE to update the pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions.
  • 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 block diagram conceptually illustrating an example of a wireless communication network, in accordance with various aspects of the present disclosure.
  • Fig. 2 is a block diagram conceptually illustrating an example of a base station in communication with a user equipment (UE) in a wireless communication network, in accordance with various aspects of the present disclosure.
  • UE user equipment
  • Fig. 3 illustrates examples of medium access control control elements (MAC CEs) for updating a pathloss reference signal (RS) configuration of a UE, in accordance with various aspects of the present disclosure.
  • MAC CEs medium access control control elements
  • RS pathloss reference signal
  • Fig. 4 is a diagram illustrating an example of updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • Fig. 5 illustrates examples of MAC CEs for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • Fig. 6 illustrates examples of MAC CEs for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • Fig. 7 illustrates examples of MAC CEs for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • Fig. 8 illustrates an example of a MAC CE for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • Fig. 9 is a diagram illustrating an example process performed, for example, by a UE, in accordance with various aspects of the present disclosure.
  • Fig. 10 is a diagram illustrating an example process performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Fig. 11 is a diagram illustrating an example process performed, for example, by a UE, in accordance with various aspects of the present disclosure.
  • Fig. 12 is a diagram illustrating an example process performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Fig. 1 is a diagram illustrating a wireless network 100 in which aspects of the present disclosure may be practiced.
  • the wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network.
  • the wireless network 100 may include a number of BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities.
  • a BS is an entity that communicates with user equipment (UEs) and may also be referred to as a base station, a 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 station 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d.
  • a relay station may also be referred to as a relay BS, 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 radio access technology (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.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 shows a block diagram of a design 200 of base station 110 and UE 120, which may be one of the base stations and one of the UEs in Fig. 1.
  • 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., the cell-specific reference signal (CRS) ) 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. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM and/or the like) to obtain an output sample stream.
  • TX transmit
  • 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.
  • the synchronization signals can be generated with location encoding to convey additional information.
  • 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.
  • 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.
  • 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 comprising 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. 3-12.
  • 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. In some aspects, 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. 3-12.
  • 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 updating a pathloss reference signal (RS) configuration for multiple RS 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 900 of Fig. 9, process 1000 of Fig. 10, process 1100 of Fig. 11, process 1200 of Fig. 12, 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 comprise a non-transitory computer-readable medium storing one or more instructions 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 perform or direct operations of, for example, process 900 of Fig. 9, process 1000 of Fig. 10, process 1100 of Fig. 11, process 1200 of Fig. 12, 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 scheduler 246 may schedule UEs for data transmission on the downlink and/or uplink.
  • UE 120 may include means for receiving an update message that indicates an update to a pathloss RS configuration of UE 120 for sounding RSs (SRSs) , the update indicating a pathloss RS identifier (ID) that is to be applied to a plurality of SRS resources that are identified by SRS identification information, means for updating the pathloss RS configuration of UE 120 for the SRS resources identified by the SRS identification information, means for transmitting an SRS using the pathloss RS configuration, 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 generating an update message that indicates an update to a pathloss RS configuration of a UE for SRSs, the update indicating a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information, means for transmitting the update message to the UE to update the pathloss RS configuration of the UE for SRSs, 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.
  • UE 120 may include means for receiving an update message that indicates an update to a pathloss RS configuration of UE 120 for one or more of SRSs or PUCCH transmissions, the update indicating a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, the SRS identification information identifying a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof, means for updating the pathloss RS configuration of UE 120 for the SRS resources identified by the SRS identification information, means for transmitting one of an SRS or a PUCCH transmission using the pathloss RS configuration, 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 generating an update message that indicates an update to a pathloss RS configuration of a UE for one or more of SRSs or PUCCH transmissions, the update indicating a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information, the SRS identification information identifying a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof, means for updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information, means for transmitting the update message to the UE to update the pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions, 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.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • Fig. 3 illustrates examples of medium access control control elements (MAC CEs) 300 and 310 for updating a pathloss RS configuration of a UE, in accordance with various aspects of the present disclosure.
  • MAC CEs medium access control control elements
  • a UE may transmit an SRS to a base station (e.g., gNB) , and the gNB may use the SRS to support multiuser scheduling.
  • the gNB may use SRSs from multiple UEs to estimate a channel quality between each UE and the gNB.
  • the gNB may transmit a channel state information RS (CSI-RS) to help the UE to calculate a suitable precoder for another SRS transmission.
  • CSI-RS channel state information RS
  • the gNB may transmit a MAC CE (e.g., MAC CE 300, MAC CE 310, and/or the like) to the UE with information to update the pathloss RS configuration of the UE.
  • the MAC CE may include a structure that is organized into multiple octets of bits (8 bits) .
  • the MAC CE may include a serving cell identifier (ID) , a bandwidth part (BWP) ID, SRS identification information, and pathloss RS information.
  • the serving cell ID may be five bits and may identify a serving cell for which the MAC CE applies.
  • the BWP ID may be two bits and may indicate an uplink BWP for which the MAC CE applies. “R” fields are reserve bits set to “0” .
  • the pathloss reference RS information may apply to SRS resources identified by the SRS resource identification information.
  • the SRS resource identification information may be four bits and may identify an SRS resource set ID as shown in MAC CE 300, or identify an SRI ID as shown in MAC CE 310.
  • the pathloss reference RS information may be six bits and may identify a pathloss RS with a pathloss reference RS ID or a physical uplink shared channel (PUSCH) pathloss reference RS ID.
  • a pathloss RS may be associated with a CSI-RS, a synchronization signal block (SSB) , and/or the like.
  • Fig. 3 shows an example where a pathloss RS identified by the pathloss reference RS ID in MAC CE 300 may apply to an SRS resource set identified by the SRS resource set ID in MAC CE 300.
  • the UE may maintain up to only four pathloss RSs for uplink power control of a PUCCH transmission, a PUSCH transmission, or an SRS per serving cell. Therefore, multiple SRS resource sets and multiple SRIs may share the same pathloss RS.
  • the gNB may be required to transmit multiple MAC CEs. This involves a lot of overhead that consumes processing resources and signaling resources of the gNB and the UE.
  • Fig. 3 is provided as one or more examples. Other examples may differ from what is described with respect to Fig. 3.
  • Fig. 4 is a diagram illustrating an example 400 of updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • Fig. 4 shows a base station (BS) 410 (e.g., a BS 110 depicted in Figs. 1 and 2, and/or the like) and a UE 420 (e.g., a UE 120 depicted in Figs. 1 and 2, and/or the like) that may communicate with each other.
  • Fig. 4 shows BS 410 updating a pathloss RS configuration for UE 420 with a MAC CE.
  • a base station may transmit a single update message (e.g., MAC CE, downlink control information (DCI) , radio resource control (RRC) message, and/or the like) to update a pathloss RS configuration for multiple SRS resource sets and/or multiple SRIs.
  • a single update message e.g., MAC CE, downlink control information (DCI) , radio resource control (RRC) message, and/or the like
  • the gNB may transmit a MAC CE with pathloss RS information and RS resource identification information that identifies multiple SRS resource set IDs or multiple SRI IDs.
  • the UE and the gNB may save processing resources and signaling resources.
  • BS 410 may generate a MAC CE.
  • the MAC CE may be structured like MAC CE 435, which includes multiple SRS resource set IDs rather than a single SRS resource set ID.
  • the MAC CE may be structured like MAC CE 440, which includes multiple SRI IDs rather than a single SRI ID.
  • BS 410 may generate the MAC CE based at least in part on information about a transmission path for UE 120 for SRSs and/or PUCCH transmissions. For example, BS 410 may generate the MAC CE with pathloss RS information that is based at least in part on signal measurements associated with SRSs, CSI-RSs, or SSBs.
  • BS 420 may transmit the MAC CE to UE 420.
  • UE 120 may update a pathloss RS configuration with the pathloss RS information identified by a pathloss reference RS ID in the MAC CE. For example, UE 420 may activate or deactivate a particular pathloss RS configuration for multiple SRS resources identified by the SRS resource identification information. As shown by reference number 455, UE 420 may transmit an SRS to BS 410 based at least in part on the pathloss RS configuration.
  • Fig. 4 is provided as an example. Other examples may differ from what is described with respect to Fig. 4.
  • Fig. 5 illustrates examples of MAC CEs 500 and 510 for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • RS resource identification information normally occupies four bits in a MAC CE for identifying an SRS resource set.
  • a MAC CE such as MAC CE 500, may include more than four bits in one or more octets for identifying multiple RS resource sets or a group of multiple RS resource sets.
  • the multiple SRS resource set IDs and the corresponding pathloss RS may be explicitly indicated in a single MAC CE.
  • a MAC CE such as MAC CE 510, may include a single SRS resource set ID (shown as ID 4 in Fig. 5) for a pathloss RS configuration.
  • BS 410 may have configured UE 420 with one or more groups (e.g., lists) of SRS resource set IDs, such that the single SRS resource set ID indicates an associated group of SRS resource set IDs (e.g., ID 4, ID 5, ID 6) of which the single SRS resource set is a part.
  • the groups or lists of SRS resource set IDs may be configured by RRC, MAC CE or DCI signaling from BS 410 and UE 420.
  • UE 420 may proceed to update the pathloss RS configuration for the single SRS resource set ID and one or more (or all of) other SRS resource set IDs in the group of SRS resource set IDs.
  • UE 420 may apply the pathloss RS to every SRS resource set in the SRS resource set group containing the indicated SRS resource set ID.
  • this method of updating by group may also apply to an SRI that is part of a group of SRIs.
  • the groups or lists of SRIs may be configured by RRC, MAC CE or DCI signaling from BS 410 and UE 420.
  • UE 420 may apply the pathloss RS configuration to every SRI in the SRI group containing the indicated SRI.
  • a flag e.g., bit
  • MAC CE 510 may be included in a MAC CE, such as the “G” bit in MAC CE 510, that indicates whether the single SRS resource set ID applies only to the single SRS resource set ID (legacy behavior) or to the associated group of SRS resource set IDs (new behavior) .
  • UE 420 may update the pathloss RS configuration only for SRS resource set ID 4. If the flag is set to “1, ” UE 420 may update the pathloss RS for SRS resource set IDs 4, 5, and 6. In some aspects, a separate flag may be used for updating the pathloss RS for SRIs.
  • BS 410 may set each flag (for SRS resource sets or for SRIs) based at least in part on a UE capability of UE 420.
  • UE 420 may indicate a UE capability to BS 410 that UE 420 can support updating the pathloss RS for groups of SRS resource sets.
  • UE 420 may indicate another UE capability to BS 410 that UE 420 can support updating the pathloss RS for groups of SRIs. If UE 420 reports a UE capability that can support updating multiple SRSs in a group of SRSs or multiple SRIs in a group of SRIs, BS 410 may configure the groups of SRS resource sets or groups of SRIs and set the flag accordingly. In some aspects, UE 420 may indicate a single UE capability report to BS 410 that UE can support updating the pathloss RS for both groups of SRS resource sets and groups of SRIs. In some aspects, a single flag may be used for updating the pathloss RS for both groups of SRS resource sets and groups of SRIs. In some aspects, the flags may also be indicated by a separate MAC CE, RRC or DCI signaling from BS 410 to UE 420.
  • Fig. 5 is provided as an example. Other examples may differ from what is described with respect to Fig. 5.
  • Fig. 6 illustrates examples of MAC CEs 600 and 610 for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • BS 410 may determine to update a pathloss RS configuration for a combination of SRS resource sets, SRIs, PUCCH resources, or PUCCH resource groups.
  • a MAC CE may include one or more SRS resource set IDs and one or more SRI IDs in the same MAC CE.
  • MAC CE 600 may include multiple SRS resource set IDs and multiple SRI IDs.
  • MAC CE 610 may include multiple SRS resource set IDs and a PUCCH resource group ID.
  • BS 410 may update a pathloss RS for any combination of SRS resources, PUCCH resources, and/or the like.
  • Fig. 6 is provided as an example. Other examples may differ from what is described with respect to Fig. 6.
  • Fig. 7 illustrates examples of MAC CEs 700 and 710 for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • BS 410 may determine to update a pathloss RS configuration for a combination of SRS resource sets, SRIs, PUCCH resources, or PUCCH resource groups for one or more component carriers (CCs, or serving cells) .
  • BS 410 may indicate one or more CC IDs (or serving cell IDs) in a pathloss RS selection command.
  • BS 410 may include one or more CC IDs or serving cell IDs in a MAC CE.
  • MAC CE 700 may include a serving cell ID of a serving cell or CC for which an update of pathloss RS may apply to multiple SRS resource sets.
  • MAC CE 710 may include multiple CC IDs, such that an update for pathloss RS applies to multiple CCs.
  • the multiple CCs to update the pathloss RS are identified by a bitmap in the MAC CE.
  • a bit in the bitmap corresponds to a CC ID
  • the bit “C0” corresponds to the first CC
  • the bit “C7” corresponds to the 8 th CC. Since the bit “C3” and “C5” are set to “1” , the pathloss RS is updated for the indicated RS in the 4 th and 6 th CC.
  • Fig. 7 is provided as an example. Other examples may differ from what is described with respect to Fig. 7.
  • Fig. 8 illustrates an example of a MAC CE 800 for updating a pathloss RS configuration for multiple RS resources, in accordance with various aspects of the present disclosure.
  • a MAC CE such as MAC CE 800, may include a single CC ID (shown as Serving cell ID 4 in Fig. 8) .
  • BS 410 may have configured UE 420 with one or more groups (e.g., lists) of Serving cell IDs, such that the single CC ID indicates an associated group of CC IDs (e.g., Serving cell ID 4, ID 5, ID 6) of which the CC is a part.
  • the groups or lists of CC IDs may be configured by RRC, MAC CE or DCI signaling from BS 410 and UE420.
  • UE 420 may proceed to update the pathloss RS configuration for the single CC ID and one or more (or all of) other CC IDs in the group of CC IDs.
  • UE 420 may apply the pathloss to the indicated RS resources for every CC in the CC group containing the indicated CC.
  • this method of updating by group may also apply to an SRI that is part of a group of SRIs.
  • UE 420 may apply the pathloss to the indicated SRIs for every CC in the CC group containing the indicated CC.
  • RS identification information may also apply to other types of update messages, such as DCI, RRC messages, and/or the like.
  • the pathloss RS update for multiple SRS resource sets, multiple SRI IDs, and/or multiple PUCCH resources in one CC may be applied to multiple CCs. If BS 410 includes RS identification information for multiple SRS resource sets, SRIs, CCs, PUCCH resources, PUCCH resource groups, and/or the like, BS 410 and UE 420 may reduce signaling overhead involved with updating a pathloss RS configuration in a single indication. As a result, BS 410 and UE 420 may save processing resources and signaling resources.
  • Fig. 8 is provided as an example. Other examples may differ from what is described with respect to Fig. 8.
  • Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a UE, in accordance with various aspects of the present disclosure.
  • Example process 900 is an example where the UE (e.g., a UE 120 depicted in Figs. 1 and 2, a UE 420 depicted in Fig. 4, and/or the like) performs operations associated with updating a pathloss RS for multiple SRS resources.
  • the UE e.g., a UE 120 depicted in Figs. 1 and 2, a UE 420 depicted in Fig. 4, and/or the like
  • performs operations associated with updating a pathloss RS for multiple SRS resources e.g., a UE 120 depicted in Figs. 1 and 2, a UE 420 depicted in Fig. 4, and/or the like.
  • process 900 may include receiving an update message that indicates an update to a pathloss RS configuration of the UE for SRSs (block 910) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • the update may indicate a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information,
  • process 900 may include updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information (block 920) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • process 900 may include transmitting an SRS using the pathloss RS configuration (block 930) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • Process 900 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.
  • the update message is one of a MAC CE, DCI, or an RRC message.
  • the SRS identification information includes a plurality of SRS resource set IDs.
  • the SRS identification information identifies an SRS resource set ID that is associated with a group of SRS resource set IDs
  • updating the pathloss RS configuration includes updating the pathloss RS configuration of the UE for SRS resource set IDs that are in the group of SRS resource set IDs.
  • the update message includes a flag
  • updating the pathloss RS configuration for the SRS resource set IDs in the group of SRS resource set IDs includes updating the pathloss RS configuration for the SRS resource set IDs in the group of SRS resource set IDs based at least in part on a value of the flag.
  • the SRS identification information includes a plurality of SRS resource indicators.
  • the SRS identification information identifies an SRI that is associated with a group of SRIs
  • updating the pathloss RS configuration includes updating the pathloss RS configuration of the UE for SRIs that are in the group of SRIs.
  • the update message includes a flag
  • updating the pathloss RS configuration for the SRIs in the group of SRIs includes updating the pathloss RS configuration for the SRIs in the group of SRIs based at least in part on a value of the flag.
  • process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 9. Additionally, or alternatively, two or more of the blocks of process 900 may be performed in parallel.
  • Fig. 10 is a diagram illustrating an example process 1000 performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Example process 1000 is an example where the base station (e.g., a BS 110 depicted in Figs. 1 and 2, a BS 410 depicted in Fig. 4, and/or the like) performs operations associated with updating a pathloss RS for multiple SRS resources.
  • the base station e.g., a BS 110 depicted in Figs. 1 and 2, a BS 410 depicted in Fig. 4, and/or the like
  • performs operations associated with updating a pathloss RS for multiple SRS resources e.g., a BS 110 depicted in Figs. 1 and 2, a BS 410 depicted in Fig. 4, and/or the like.
  • process 1000 may include generating an update message that indicates an update to a pathloss RS configuration of a UE for SRSs (block 1010) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • the update may indicate a pathloss RS ID that is to be applied to a plurality of SRS resources that are identified by SRS identification information.
  • process 1000 may include transmitting the update message to the UE to update the pathloss RS configuration of the UE for SRSs (block 1020) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • Process 1000 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.
  • the update message is one of a MAC CE, DCI, or an RRC message.
  • the SRS identification information includes a plurality of SRS resource set IDs.
  • the SRS identification information identifies an SRS resource set ID that is associated with a group of SRS resource set IDs, and the update applies to SRS resource set IDs that are in the group of SRS resource set IDs.
  • the update message includes a flag, and the flag indicates whether the update applies to the SRS resource set ID or SRS resource set IDs in the group of SRS resource set IDs.
  • the SRS identification information includes a plurality of SRS resource indicators.
  • the SRS identification information identifies an SRI that is associated with a group of SRIs, and the update applies to SRIs that are in the group of SRIs.
  • the update message includes a flag, and the flag indicates whether the update applies to the SRI or SRIs in the group of SRIs.
  • process 1000 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 10. Additionally, or alternatively, two or more of the blocks of process 1000 may be performed in parallel.
  • Fig. 11 is a diagram illustrating an example process 1100 performed, for example, by a UE, in accordance with various aspects of the present disclosure.
  • Example process 1100 is an example where the UE (e.g., a UE 120 depicted in Figs. 1 and 2, a UE 420 depicted in Fig. 4, and/or the like) performs operations associated with updating a pathloss RS for multiple SRS and uplink resources .
  • the UE e.g., a UE 120 depicted in Figs. 1 and 2, a UE 420 depicted in Fig. 4, and/or the like
  • performs operations associated with updating a pathloss RS for multiple SRS and uplink resources e.g., a UE 120 depicted in Figs. 1 and 2, a UE 420 depicted in Fig. 4, and/or the like.
  • process 1100 may include receiving an update message that indicates an update to a pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions (block 1110) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • the update may indicate a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information
  • the SRS identification information may identify a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof.
  • process 1100 may include updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information (block 1120) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • process 1100 may include transmitting one of an SRS or a PUCCH transmission using the pathloss RS configuration (block 1130) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • Process 1100 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.
  • the update message is one of a MAC CE, DCI, or an RRC message.
  • the update applies to one or more CCs indicated by CC IDs in the update message.
  • the update message indicates a CC associated with a group of CCs, and the update applies to CCs that are in the group of CCs.
  • process 1100 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 11. Additionally, or alternatively, two or more of the blocks of process 1100 may be performed in parallel.
  • Fig. 12 is a diagram illustrating an example process 1200 performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Example process 1200 is an example where the base station (e.g., a BS 110 depicted in Figs. 1 and 2, a BS 410 depicted in Fig. 4, and/or the like) performs operations associated with updating a pathloss RS for multiple SRS and uplink resources.
  • the base station e.g., a BS 110 depicted in Figs. 1 and 2, a BS 410 depicted in Fig. 4, and/or the like
  • process 1200 may include generating an update message that indicates an update to a pathloss RS configuration of a UE for one or more of SRSs or PUCCH transmissions (block 1210) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • the update may indicate a pathloss RS ID that is to be applied to SRS resources identified by SRS identification information
  • the SRS identification information may identify a plurality of SRS resource sets, a plurality of SRIs, a plurality of PUCCH resource IDs, a plurality of PUCCH resource group IDs, or a combination thereof.
  • process 1200 may include updating the pathloss RS configuration of the UE for the SRS resources identified by the SRS identification information (block 1220) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • process 1200 may include transmitting the update message to the UE to update the pathloss RS configuration of the UE for one or more of SRSs or PUCCH transmissions (block 1230) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • Process 1200 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.
  • the update message is one of a MAC CE, DCI, or an RRC message.
  • the update applies to one or more CCs indicated by CC IDs in the update message.
  • the update message indicates a CC associated with a group of CCs, and the update applies to CCs that are in the group of CCs.
  • process 1200 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 12. Additionally, or alternatively, two or more of the blocks of process 1200 may be performed in parallel.
  • ком ⁇ онент 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.
  • 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 terms “has, ” “have, ” “having, ” and/or the like are intended to be open-ended terms. Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.

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Abstract

Divers aspects de la présente invention concernent de manière générale les communications sans fil. Selon certains aspects, un équipement d'utilisateur (UE) peut recevoir un message de mise à jour qui indique une mise à jour d'une configuration de signal de référence (RS) d'affaiblissement de trajet pour l'UE destinée à des RS de sondage (SRS). La mise à jour peut indiquer un identifiant de RS d'affaiblissement de trajet qui doit être appliqué à une pluralité de ressources de SRS qui sont identifiées par des informations d'identification de SRS. L'UE peut mettre à jour la configuration de RS d'affaiblissement de trajet pour l'UE destinée aux ressources SRS identifiées par les informations d'identification de SRS, et transmettre un SRS à l'aide de la configuration de RS d'affaiblissement de trajet. La divulgation concerne également de nombreux autres aspects.
PCT/CN2020/089153 2020-05-08 2020-05-08 Mise à jour de signal de référence d'affaiblissement de trajet pour de multiples ressources WO2021223212A1 (fr)

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OPPO: "Report of [108#68][NR eMIMO] Design of DL MAC CEs", 3GPP DRAFT; R2-2000660, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. 20200224 - 20200306, 14 February 2020 (2020-02-14), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051849237 *
QUALCOMM INCORPORATED: "Design of MIMO DL MAC CE", 3GPP DRAFT; R2-2001034, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. 20200224 - 20200306, 14 February 2020 (2020-02-14), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051849450 *
ZTE: "Enhancements on multi-beam operation", 3GPP DRAFT; R1-1911931, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, US; 20191118 - 20191122, 9 November 2019 (2019-11-09), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051823112 *

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