WO2023047387A1 - Appareil et procédé d'identification de commande de puissance de liaison montante en boucle ouverte pour des états d'indication de commande de transmission (tci) unifiés - Google Patents

Appareil et procédé d'identification de commande de puissance de liaison montante en boucle ouverte pour des états d'indication de commande de transmission (tci) unifiés Download PDF

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Publication number
WO2023047387A1
WO2023047387A1 PCT/IB2022/059199 IB2022059199W WO2023047387A1 WO 2023047387 A1 WO2023047387 A1 WO 2023047387A1 IB 2022059199 W IB2022059199 W IB 2022059199W WO 2023047387 A1 WO2023047387 A1 WO 2023047387A1
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WIPO (PCT)
Prior art keywords
power control
open
transmission
control parameter
loop power
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PCT/IB2022/059199
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English (en)
Inventor
Li Guo
Original Assignee
Guangdong Oppo Mobile Telecomminications Corp., Ltd.
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Application filed by Guangdong Oppo Mobile Telecomminications Corp., Ltd. filed Critical Guangdong Oppo Mobile Telecomminications Corp., Ltd.
Publication of WO2023047387A1 publication Critical patent/WO2023047387A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/10—Open loop power control
    • 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
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/265—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the quality of service QoS

Definitions

  • Embodiments of the present disclosure relate to apparatus and method for wireless communication.
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • cellular communication such as the 4th-generation (4G) Long Term Evolution (LTE) and the 5th- generation (5G) New Radio (NR), the 3rd Generation Partnership Project (3GPP) defines various procedures for applying open-loop power control for uplink (UL) transmissions.
  • 4G Long Term Evolution
  • 5G 5th-generation
  • 3GPP 3rd Generation Partnership Project
  • a method of wireless communication of a user equipment may include receiving, by a communication interface, first signaling from a base station that configures the UE with a plurality of transmission control indicator (TCI) states each associated with a first open-loop power control parameter.
  • TCI transmission control indicator
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the method may include receiving, by the communication interface, second signaling from the base station that configures the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the method may include identifying, by at least one processor, whether to apply the first open-loop power control parameter or the second open-loop power control parameter to a scheduled physical uplink shared channel (PUSCH) transmission based on an indication included in downlink control information DO that schedules the PUSCH transmission.
  • the method may include transmitting, by the communication interface, the PUSCH transmission to the base station based on either the first open-loop power control parameter or the second open-loop power control parameter based on the indication in the DO.
  • PUSCH physical uplink shared channel
  • an apparatus for wireless communication of a UE may include at least one processor.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform receiving first signaling from a base station that configures the UE with a plurality of TCI states each corresponding to a first open-loop power control parameter.
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform receiving second signaling from the base station that configures the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform identifying whether to apply the first open-loop power control parameter or the second open-loop power control parameter to a scheduled PUSCH transmission based on an indication included in DO that schedules the PUSCH transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting the PUSCH transmission to the base station using either the first open-loop power control parameter or the second open-loop power control parameter based on the indication in the DO.
  • a method of wireless communication of a base station may include transmitting, by a communication interface, first signaling to configure a UE with a plurality of TCI states each associated with a first open-loop power control parameter.
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the method may include transmitting, by the communication interface, second signaling to configure the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the method may include scheduling, by at least one processor, a PUSCH transmission for the UE.
  • the method may include identifying, by at least one processor, whether the PUSCH transmission is associated with the first type of uplink transmission or the second type of uplink transmission.
  • the method may include generating, by the at least one processor, DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • the method may include transmitting, by the communication interface, the DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • an apparatus for wireless communication of a base station may include at least one process.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting first signaling to configure a UE with a plurality of TCI states each associated with a first open-loop power control parameter.
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting second signaling to configure the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform scheduling, by at least one processor, a PUSCH transmission for the UE.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform identifying whether the PUSCH transmission is associated with the first type of uplink transmission or the second type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform generating DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting the PUSCH transmission to the base station based on either the first open-loop power control parameter or the second open-loop power control parameter as indicated in the DO.
  • FIG. 1 illustrates an exemplary wireless network, according to some embodiments of the present disclosure.
  • FIG. 2 illustrates a block diagram of an exemplary node, according to some embodiments of the present disclosure.
  • FIG. 3 illustrates a conceptual flow diagram of an exemplary data flow to achieve exemplary open-loop power control in unified TCI states, according to some embodiments of the present disclosure.
  • FIG. 4 is a flowchart of a first exemplary method of wireless communication, according to some embodiments of the present disclosure.
  • FIG. 5 is a flowchart of a second exemplary method of wireless communication, according to some embodiments of the present disclosure.
  • references in the specification to “one embodiment,” “an embodiment,” “an example embodiment,” “some embodiments,” “certain embodiments,” etc. indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it would be within the knowledge of a person skilled in the pertinent art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • terminology may be understood at least in part from usage in context.
  • the term “one or more” as used herein, depending at least in part upon context may be used to describe any feature, structure, or characteristic in a singular sense or may be used to describe combinations of features, structures or characteristics in a plural sense.
  • terms, such as “a,” “an,” or “the,” again, may be understood to convey a singular usage or to convey a plural usage, depending at least in part upon context.
  • the term “based on” may be understood as not necessarily intended to convey an exclusive set of factors and may, instead, allow for existence of additional factors not necessarily expressly described, again, depending at least in part on context.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC- FDMA single-carrier frequency division multiple access
  • WLAN wireless local area network
  • a CDMA network may implement a radio access technology (RAT), such as Universal Terrestrial Radio Access (UTRA), evolved UTRA (E-UTRA), CDMA 2000, etc.
  • RAT radio access technology
  • UTRA Universal Terrestrial Radio Access
  • E-UTRA evolved UTRA
  • CDMA 2000 etc.
  • GSM Global System for Mobile Communications
  • An OFDMA network may implement a RAT, such as LTE or NR.
  • a WLAN system may implement a RAT, such as Wi-Fi.
  • the techniques described herein may be used for the wireless networks and RATs mentioned above, as well as other wireless networks and RATs.
  • a base station may use DO format 0_l or 0_2 to schedule a PUSCH transmission for a UE.
  • the sounding reference signal (SRS) resource indicator (SRI) field in the DO indicate a set of uplink power control parameters including an open-loop power control parameter (P0), alpha, and a closed-loop index, as well as an SRS resource identification (ID).
  • SRS sounding reference signal
  • ID SRS resource identification
  • each codepoint of the SRI field in the DO may be mapped to one set of power control parameters: P0, alpha, and the closed loop index.
  • the UE may also be provided with one or more open-loop power control parameter POs, that may be used to support different types of traffic.
  • the base station may use another DO field to indicate which of the P0 values the UE shall use to determine the uplink transmit power for the scheduled PUSCH.
  • the base station may send DO format 0_l that includes the DO field seen below in Table 1.
  • the UE When the codepoint of the open-loop power control parameter set indication in the DCI field is 0, the UE is instructed to apply the P0 corresponding to the SRI field in the DCI to determine the uplink transmit power. Otherwise, the UE shall apply the P0 configured in a particular RRC parameter for uplink power control on the scheduled PUSCH.
  • a unified TCI framework may be used by the example 5G NR network.
  • the UE may be configured with a list of joint TCI states (e.g., TCI states associated with downlink (DL) and uplink (UL) transmissions), a list of DL TCI states, or a list of UL TCI states.
  • the reference signal (RS) configured for quasi co-location (QCL)-TypeD also provides a reference for an uplink transmit (Tx) spatial filter applied to an uplink transmission.
  • the UE When the UE is configured with a joint TCI state, the UE may be indicated with a first joint TCI state by DO format 1_1 or 1_2, and the UE shall apply the indicated first joint TCI state on all the PDCCH/PDSCH/PUCCH/PUSCH.
  • the UE may apply the QCL configuration included in the first TCI state on reception of a PDCCH transmission and/or PDSCH transmission.
  • the UE may use the RS providing uplink Tx spatial filter contained in the first joint TCI state to determine the uplink transmit filter for a PUCCH transmission and/or a PUSCH transmission.
  • the UE When the UE is configured with separate TCI states, the UE may be provided with a list of DL TCI states and a list of UL TCI states.
  • the base station may use DO format 1_1 or 1_2 to indicate a first DL TCI state and a second UL TCI state to the UE, respectively.
  • the UE may be requested to apply the QCL configuration associated with the first DL TCI state on the reception of a PDCCH transmission and/or PDSCH transmission.
  • the UE may be requested to use the RS for the uplink Tx spatial filter associated with the second UL TCI state to determine the uplink Tx spatial filter for a PUCCH transmission and/or a PUSCH transmission.
  • each joint TCI state or UL TCI state may be associated with a set of uplink power control parameters including P0, alpha, and closed loop index, for PUSCH transmission.
  • the gNB uses DO to indicate one joint TCI state or UL TCI state to the UE, the UE shall apply the RS providing reference for uplink Tx spatial filter contained in the indicated joint TCI state or UL TCI state to determine the uplink transmit filter for the scheduled PUSCH and the UE may be requested to apply the power control parameters associated with the indicated joint TCI state or UL TCI state to determine the uplink transmit power for the scheduled PUSCH.
  • DO format 0_l and 0_2 is still used to schedule a PUSCH transmission when the UE is configured with a unified TCI framework.
  • existing openloop power control parameter indication methods which employ DO format 0_l and 0_2, do not when a unified TCI framework is used.
  • DO format 0_l or 0_2 may indicate to a UE whether to use a first P0 associated with a TCI state or a second P0 associated with a PUSCH transmission not associated with a TCI state.
  • the first P0 e.g., a first open-loop power control parameter
  • the second P0 e.g., a second open-loop power control parameter
  • URLLC ultra-low- latency communication
  • the UE may determine the appropriate transmission power that corresponds to first P0 or second P0, depending on what is indicated in the DO format 0_l or 0_2, that schedules the PUSCH transmission.
  • the UE may indicate which P0 to use in the same DO that schedules the PUSCH transmission, signaling overhead of the 5G NR network may be reduced, while at the same time enabling an exemplary open-loop power control parameter indication method that is compatible with the unified TCI states framework. Additional details of the exemplary open-loop power control parameter indication technique are provided below in connection with FIGs. 1-5.
  • some NR systems introduces a multi-transmission/reception point (TRP) based non-coherent joint transmission.
  • TRP transmission/reception point
  • multiple TRPs are connected through backhaul link for coordination.
  • the backhaul link can be ideal or non-ideal.
  • the TRPs can exchange dynamic PDSCH scheduling information with short latency.
  • the different TRP can coordinate the PDSCH transmission per PDSCH transmission.
  • the coordination between TRPs can only be semi-static or static.
  • different TRPs use different PDCCH to schedule the PDSCH transmission, independently.
  • Each TRP can send one DO to schedule one PDSCH transmission.
  • PDSCHs from different TRP can be scheduled in the same or different slots.
  • Two different PDSCH transmissions from different TRPs can be fully overlapped or partially overlapped in PDSCH resource allocation.
  • a UE is requested to receive PDCCH transmissions from multiple TRPs and then receive multiple PDSCH transmissions sent from multiple TRPs. For each PDSCH transmission, the UE can feedback HARQ-ACK information to the network.
  • the UE can feedback the HARQ-ACK information for each PDSCH transmission to the TRP transmitting the PDSCH.
  • the UE can also feedback the HARQ-ACK information for a PDSCH transmission sent from any TRP to one particular TRP.
  • a UE receives PDSCH based on non-coherent joint transmission from two TRPs: TRP1 and TRP2.
  • the TRP1 sends one DO to schedule the transmission of PDSCH1 to the UE
  • TRP2 sends one DO to schedule the transmission of PDSCH 2 to the UE.
  • the UE receives and decodes the DO from both TRPs. Based on the DO from TRP1, the UE receives and decodes PDSCH1. Based on the DO from TRP2, the UE receives and decodes PDSCH 2.
  • the UE reports hybrid automatic repeat request (HARQ)-acknowledgement (ACK) (HARQ-ACK) for PDSCH1 and PDSCH2 to the TRP1 and TRP2, respectively.
  • TRP1 and TRP 2 use different control resource sets (CORESETs) and search spaces to transmit the DO that schedules a UE’s PDSCH transmission.
  • Each TRP can be associated with one or more CORESETs and the related search spaces.
  • the TRP can use the associated CORESET to transmit the DO, which schedules a PDSCH transmission, to the UE.
  • the UE can be requested to decode the DO in CORESETs associated with either TRP to obtain PDSCH scheduling information.
  • a UE receives a PDSCH transmission based on non-coherent joint transmission from two TRPs, e.g., TRP1 and TRP2.
  • TRP1 sends one DO to schedule the transmission of PDSCH 1
  • TRP2 sends one DO to schedule the transmission of PDSCH2.
  • the UE receives and decodes DO from both TRPs. Based on the DO from TRP1, the UE receives and decodes PDSCH1. Based on the DO from TRP2, the UE receives and decodes PDSCH2.
  • the UE reports HARQ-ACK for both PDSCH 1 and PDSCH2 to the TRP, which is different from the HARQ-ACK reporting described above.
  • Some 5G NR systems support a beam failure recovery function for the single TRP case, where the beam failure happens only when all the PDCCHs experience beam failure.
  • the procedure of some beam failure recovery techniques includes that the UE first monitor a set of beam failure detection reference signals (RSs) (e.g., channel state information (CSI)-RS resources or synchronization signal SS/physical broadcast channel (PBCH) blocks) that correspond to all the downlink PDCCH channel in one component carrier (CC). If all the beam failure detection RSs meet beam failure, the UE can claim beam failure event for that CC.
  • RSs beam failure detection reference signals
  • CSI channel state information
  • PBCH physical broadcast channel
  • the UE can report this event to the base station through a media access control (MAC) control element (CE) (e.g., for beam failure in a secondary cell (SCell)) or a random access channel (RACH) procedure (e.g., for a special cell (SpCell)), which can be referred to as beam failure recovery request (BFRQ).
  • MAC media access control
  • CE control element
  • RACH random access channel
  • BFRQ beam failure recovery request
  • the UE can also report one new beam to the base station in the BFRQ, which is a good candidate beam providing a good link. If the base station receives the BFRQ correctly, it sends a corresponding response to the UE and switches the beam of the failed PDCCH to the new beam reported by the UE. This completes the beam failure recovery procedure, which can also be referred to as the link recovery.
  • One channel of the beam failure recovery procedure described above is that the beam link on PUCCH transmission is not recovered after the beam failure of PDCCH is recovered. The consequence is when the PDCCH of one TRP is recovered but the PUCCH of that TRP is not recovered. Thus, the link between that TRP and the UE could still be broken.
  • the present disclosure provides a method of configuring the PUCCH for multi-TRP beam failure recovery in which the UE may be provided with two beam failure detection RS sets and, in each set, the UE is provided with one or more CSI- RS resource to detect beam failure.
  • the UE can be provided with an association between a PUCCH resource to one of those two beam failure detection RS set.
  • the UE can transmit a PUCCH resource that is associated with the first beam failure detection RS set with some default values for power control parameters and UL transmit beam (e.g., spatial relation setting, spatial relation info of the PUCCH). Additional details of the exemplary multi-TRP beam failure recovery technique are provided below.
  • FIG. 1 illustrates an exemplary wireless network 100, in which some aspects of the present disclosure may be implemented, according to some embodiments of the present disclosure.
  • wireless network 100 may include a network of nodes, such as UE 102, an access node 104 (also referred to herein as a “TRP”), and a core network element 106.
  • nodes such as UE 102, an access node 104 (also referred to herein as a “TRP”), and a core network element 106.
  • UE 102 may be any terminal device, such as a mobile phone, a desktop computer, a laptop computer, a tablet, a vehicle computer, a gaming console, a printer, a positioning device, a wearable electronic device, a smart sensor, or any other device capable of receiving, processing, and transmitting information, such as any member of a vehicle to everything (V2X) network, a cluster network, a smart grid node, or an Internet-of-Things (loT) node.
  • V2X vehicle to everything
  • cluster network such as a cluster network
  • smart grid node such as a smart grid node
  • ITT Internet-of-Things
  • Access node 104 may be a device that communicates with UE 102, such as a wireless access point, a base station (BS), a Node B, an enhanced Node B (eNodeB or eNB), a next-generation NodeB (gNodeB or gNB), a cluster master node, or the like.
  • Access node 104 may have a wired connection to UE 102, a wireless connection to UE 102, or any combination thereof.
  • Access node 104 may be connected to UE 102 by multiple connections, and UE 102 may be connected to other access nodes in addition to access node 104. Access node 104 may also be connected to other user equipments.
  • access node 104 may operate in millimeter wave (mmW) frequencies and/or near mmW frequencies in communication with the UE 102.
  • mmW millimeter wave
  • the access node 104 may be referred to as an mmW base station.
  • Extremely high frequency (EHF) is part of the radio frequency (RF) in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters. Radio waves in the band may be referred to as a millimeter wave.
  • Near mmW may extend down to a frequency of 3 GHz with a wavelength of 200 millimeters.
  • the super high frequency (SHF) band extends between 3 GHz and 30 GHz, also referred to as centimeter wave. Communications using the mmW or near mmW radio frequency band have extremely high path loss and a short range.
  • the mmW base station may utilize beamforming with UE 102 to compensate for the extremely high path loss and short range. It is understood that access node 104 is illustrated by a radio tower by way of illustration and not by way of limitation.
  • Access nodes 104 which are collectively referred to as E-UTRAN in the evolved packet core network (EPC) and as NG-RAN in the 5G core network (5GC), interface with the EPC and 5GC, respectively, through dedicated backhaul links (e.g., SI interface).
  • EPC evolved packet core network
  • 5GC 5G core network
  • access node 104 may perform one or more of the following functions: transfer of user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment trace, RAN information management (RIM), paging, positioning, and delivery of warning messages.
  • Access nodes 104 may communicate directly or indirectly (e.g., through the 5GC) with each other over backhaul links (e.g., X2 interface).
  • the backhaul links may be wired or wireless.
  • Core network element 106 may serve access node 104 and UE 102 to provide core network services.
  • core network element 106 may include a home subscriber server (HSS), a mobility management entity (MME), a serving gateway (SGW), or a packet data network gateway (PGW).
  • HSS home subscriber server
  • MME mobility management entity
  • SGW serving gateway
  • PGW packet data network gateway
  • EPC evolved packet core
  • core network element 106 includes an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), or the location management function (LMF) of the 5GC for the NR system.
  • AMF access and mobility management function
  • SMF session management function
  • UPF user plane function
  • LMF location management function
  • the AMF may be in communication with a Unified Data Management (UDM).
  • UDM Unified Data Management
  • the AMF is the control node that processes the signaling between the UE 102 and the 5GC.
  • the AMF provides QoS flow and session management. All user Internet protocol (IP) packets are transferred through the UPF.
  • IP Internet protocol
  • the UPF provides user equipment (UE) IP address allocation as well as other functions.
  • the UPF is connected to the IP Services.
  • the IP Services may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service, and/or other IP services.
  • IMS IP Multimedia Subsystem
  • PS Streaming Service and/or other IP services.
  • the LMF is the network entity in the 5GC that supports location determination for UE 102, obtains exemplary UL UE positioning measurements from access node 104 (e.g., via the NG RAN), and obtains exemplary DL UE positioning measurements from UE 102. Using either the exemplary UL UE positioning measurements from access node 104 or DL UE positioning measurements from UE 102, the LMF may identify the location of UE 102 with a high degree of accuracy. It is understood that core network element 106 is shown as a set of rackmounted servers by way of illustration and not by way of limitation.
  • Core network element 106 may connect with a large network, such as the Internet 108, or another Internet Protocol (IP) network, to communicate packet data over any distance.
  • a large network such as the Internet 108, or another Internet Protocol (IP) network
  • IP Internet Protocol
  • data from UE 102 may be communicated to other user equipments connected to other access points, including, for example, a computer 110 connected to Internet 108, for example, using a wired connection or a wireless connection, or to a tablet 112 wirelessly connected to Internet 108 via a router 114.
  • IP Internet Protocol
  • a generic example of a rack-mounted server is provided as an illustration of core network element 106.
  • core network element 106 there may be multiple elements in the core network including database servers, such as a database 116, and security and authentication servers, such as an authentication server 118.
  • Database 116 may, for example, manage data related to user subscription to network services.
  • a home location register (HLR) is an example of a standardized database of subscriber information for a cellular network.
  • authentication server 118 may handle authentication of users, sessions, and so on.
  • an authentication server function (AUSF) device may be the entity to perform user equipment authentication.
  • a single server rack may handle multiple such functions, such that the connections between core network element 106, authentication server 118, and database 116, may be local connections within a single rack.
  • Each element in FIG. 1 may be considered a node of wireless network 100. More detail regarding the possible implementation of a node is provided by way of example in the description of a node 200 in FIG. 2.
  • Node 200 may be configured as UE 102, access node 104, or core network element 106 in FIG. 1.
  • node 200 may also be configured as computer 110, router 114, tablet 112, database 116, or authentication server 118 in FIG. 1. As shown in FIG.
  • node 200 may include a processor 202, a memory 204, and a transceiver 206. These components are shown as connected to one another by a bus, but other connection types are also permitted. When node 200 is UE 102, additional components may also be included, such as a user interface (UI), sensors, and the like. Similarly, node 200 may be implemented as a blade in a server system when node 200 is configured as core network element 106. Other implementations are also possible.
  • UI user interface
  • Transceiver 206 may include any suitable device for sending and/or receiving data.
  • Node 200 may include one or more transceivers, although only one transceiver 206 is shown for simplicity of illustration.
  • An antenna 208 is shown as a possible communication mechanism for node 200. Multiple antennas and/or arrays of antennas may be utilized for receiving multiple spatially multiplex data streams.
  • examples of node 200 may communicate using wired techniques rather than (or in addition to) wireless techniques.
  • access node 104 may communicate wirelessly to UE 102 and may communicate by a wired connection (for example, by optical or coaxial cable) to core network element 106.
  • Other communication hardware such as a network interface card (NIC), may be included as well.
  • NIC network interface card
  • node 200 may include processor 202. Although only one processor is shown, it is understood that multiple processors may be included.
  • Processor 202 may include microprocessors, microcontroller units (MCUs), digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), programmable logic devices (PEDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functions described throughout the present disclosure.
  • Processor 202 may be a hardware device having one or more processing cores.
  • Processor 202 may execute software.
  • node 200 may also include memory 204. Although only one memory is shown, it is understood that multiple memories may be included. Memory 204 may broadly include both memory and storage.
  • memory 204 may include random-access memory (RAM), read-only memory (ROM), static RAM (SRAM), dynamic RAM (DRAM), ferroelectric RAM (FRAM), electrically erasable programmable ROM (EEPROM), compact disc readonly memory (CD-ROM) or other optical disk storage, hard disk drive (HDD), such as magnetic disk storage or other magnetic storage devices, Flash drive, solid-state drive (SSD), or any other medium that may be used to carry or store desired program code in the form of instructions that may be accessed and executed by processor 202.
  • RAM random-access memory
  • ROM read-only memory
  • SRAM static RAM
  • DRAM dynamic RAM
  • FRAM ferroelectric RAM
  • EEPROM electrically erasable programmable ROM
  • CD-ROM compact disc readonly memory
  • HDD hard disk drive
  • flash drive such as magnetic disk storage or other magnetic storage devices
  • SSD solid-state drive
  • memory 204 may be embodied by any computer-readable medium, such as a non-transitory computer-readable medium.
  • Processor 202, memory 204, and transceiver 206 may be implemented in various forms in node 200 for performing wireless communication functions.
  • at least two of processor 202, memory 204, and transceiver 206 are integrated into a single system- on-chip (SoC) or a single system-in-package (SiP).
  • SoC system- on-chip
  • SiP single system-in-package
  • processor 202, memory 204, and transceiver 206 of node 200 are implemented (e.g., integrated) on one or more SoCs.
  • processor 202 and memory 204 may be integrated on an application processor (AP) SoC (sometimes known as a “host,” referred to herein as a “host chip”) that handles application processing in an operating system (OS) environment, including generating raw data to be transmitted.
  • API application processor
  • processor 202 and memory 204 may be integrated on a baseband processor (BP) SoC (sometimes known as a “modem,” referred to herein as a “baseband chip”) that converts the raw data, e.g., from the host chip, to signals that may be used to modulate the carrier frequency for transmission, and vice versa, which may run a real-time operating system (RTOS).
  • API SoC sometimes known as a “host,” referred to herein as a “host chip”
  • BP baseband processor
  • modem modem
  • RTOS real-time operating system
  • processor 202 and transceiver 206 may be integrated on an RF SoC (sometimes known as a “transceiver,” referred to herein as an “RF chip”) that transmits and receives RF signals with antenna 208.
  • RF SoC sometimes known as a “transceiver,” referred to herein as an “RF chip”
  • RF chip may be integrated as a single SoC.
  • a baseband chip and an RF chip may be integrated into a single SoC that manages all the radio functions for cellular communication.
  • access node 104 and UE 102 may perform the exemplary open-loop power control indication technique.
  • the exemplary open-loop power control parameter indication technique is compatible with the unified TCI states framework.
  • FIG. 3 illustrates a conceptual flow diagram of an exemplary data flow 300 to achieve exemplary open-loop power control in unified TCI states, according to some embodiments of the present disclosure.
  • UE 302 may be configured (at 301) with a unified TCI framework via first RRC signaling from the base station 304.
  • the RRC signaling may carry a list of ' joint TCI states for which UE 302 is configured.
  • the RS configured as QCL-TypeD source may provide a reference for uplink Tx spatial filter for a PUCCH transmission and/or a PUSCH transmission.
  • Each joint TCI state (e.g., joint for both DL transmission(s) and UL transmission(s), where the beams are the same for the DL and UL directions) may be associated with a set of power control parameters, e.g., such as first P0, alpha, and closed loop index for PUSCH transmission (e.g., a first type of uplink transmission). Additionally and/or alternatively, UE 302 may be provided with a list of K uplink TCI states. Each uplink TCI state may be associated with one RS, which may provide a reference for an uplink Tx spatial filter that may be applied to a PUCCH transmission and/or PUSCH transmission.
  • Each uplink TCI state may be associated with a set of power control parameters including first P0, alpha, and a closed loop index for a PUSCH transmission (e.g., a first type of uplink transmission).
  • UE 302 may be provided (at 303) with a second P0 for a PUSCH transmission (e.g., a second type of uplink transmission) not associated with a TCI state.
  • a PUSCH transmission associated with a TCI state (e.g., first P0) may include uplink transmissions associated with a first set of quality-of- service (QoS) requirements, e.g., such as eMBB communication.
  • QoS quality-of- service
  • a PUSCH transmission not associated with a TCI state (e.g., second P0) may include an uplink transmission associated with a second set of QoS requirements, e.g., such as URLLC.
  • Base station 304 may configure (at 305) UE 302 with a particular TCI state from the list of joint TCI states or the list of UL TCI states.
  • UE 302 may be requested to apply the RS providing reference for an uplink Tx spatial filter associated with the TCI state for which UE 302 is configured on a PUSCH transmission. If the indicated joint TCI state or UL TCI state is associated with power control parameters first P0, alpha, and a closed-loop index for a PUSCH transmission, the UE 302 may apply the associated power control parameters P0, alpha, and a closed-loop index on the PUSCH transmission.
  • UE 302 may apply the power control parameters first P0, alpha, and closed-loop index included in a separate communication from the base station 304 on the PUSCH transmission.
  • base station 304 may send (at 305) a DCI format 1_1 or DO format 1_2 or media access control (MAC) information element (IE) at slot n to indicate a first joint TCI state or a first UL TCI state to UE 302.
  • UE 302 may return an acknowledgement (ACK) for that DCI and/or MAC IE at slot m.
  • UE 302 may apply the indicated first joint TCI state or first UL TCI state on a PUSCH transmission starting from the first slot that is Y symbols after the slot used to send the ACK.
  • Base station 304 may (at 307) schedule a PUSCH transmission for UE 302 and determine (at 309) whether the PUSCH transmission is associated with the first P0 (e.g., a first type of uplink transmission) or second P0 (e.g., a second type of uplink transmission).
  • Base station 304 sends (at 311) DCI format 0_l or 0_2 to indicate the scheduled PUSCH transmission to UE 302.
  • base station 304 may use a bitfield of DCI format 0_l or 0_2 to indicate whether the first P0 or the second P0 should be used for uplink open-loop power control. In other words, the transmit power UE 302 should apply to the scheduled PUSCH transmission.
  • bit field When the bit field includes 1 bit, a value of 0 may indicate first P0, and a value of 1 may indicate second P0, by way of example.
  • bitfield When the bitfield includes 2 bits, a value of 00 may indicate the first P0, a value of 01 may indicate the second P0, a value of 10 may indicate a third P0, and a value of 11 may indicate a fourth P0, by way of example.
  • UE 302 may be requested to apply the first P0 associated with the indicated joint TCI state or UL TCI state, first P0 included in the first set of power control parameters (e.g., if they are sent separately from the configuration of joint TCI states and/or UL TCI states), or the second P0. Based on the information included in the DCI that schedules the PUSCH transmission, UE 302 may identify (at 313) whether to apply the first P0 or the second P0 to the PUSCH transmission. In other words, UE 302 may use the indicated P0 to determine the transmit power for the PUSCH transmission as requested by base station 304.
  • UE 302 may transmit (at 315) the PUSCH transmission using the transmit power associated with the P0 indicated in the DCI that scheduled the PUSCH transmission.
  • UE 302 may not be limited to a configuration of only the first P0 and the second P0.
  • UE 302 may also be configured with a third P0 associated with a third type of uplink transmission.
  • the third type of uplink transmission may not be associated with a TCI state.
  • the third type of uplink transmission may be associated with a third set of QoS requirements different than the first and second QoS requirements.
  • the third set of QoS requirements may be associated with, e.g., massive machine type communications (mMTC).
  • mMTC massive machine type communications
  • base station 304 may use DO format 0_l or 0_2 to indicate whether UE 302 should use the first P0, second P0, or third P0 to use in determining the uplink transmit power for the scheduled PUSCH.
  • the DO format 0_l and 0_2 that schedules a PUSCH and indicates P0 may be designed according to Table 2 and Table 3, respectively.
  • Table 2 Exemplary DCI format 0_l indicating P0
  • Table 3 1 st Exemplary DCI format 0_2 indicating PO
  • the DCI format 0_l and 0_2 that schedules a PUSCH and indicates PO may be designed according to Table 4 and Table 5, respectively.
  • Table 4 2 nd Exemplary DCI format 0_l indicating PO
  • Table 5 2 nd Exemplary DCI format 0_2 indicating P0
  • the DCI format 0_l and 0_2 that schedules a PUSCH and indicates P0 may be designed according to Table 6 and Table 7, respectively.
  • the function of DCI-based open-loop power control parameter set indication is closed when the UE is configured with a unified TCI framework.
  • Table 7 3 rd Exemplary DCI format 0_2 indicating P0
  • UE 302 may be configured with a unified TCI framework.
  • UE 302 may be provided with a list of joint TCI states.
  • the RS configured as QCL-TypeD source may provide a reference for the uplink Tx spatial filter for a PUCCH transmission and/or PUSCH transmission.
  • Each joint TCI state may be associated with a set of power control parameters including first P0, alpha, and a closed-loop index for a PUSCH transmission (e.g., a first type of uplink transmission, eMBB, etc.).
  • the joint TCI state may also be associated with a second P0 for a PUSCH transmission (e.g., a second type of uplink transmission, mMTC, etc.).
  • UE 302 may be provided with a list of uplink TCI states.
  • Each uplink TCI state may contain one RS, which provides a reference for uplink Tx spatial filter for a PUCCH transmission and/or PUSCH transmission.
  • Each uplink TCI state may be associated with a set of power control parameters including first P0, alpha, and a closed-loop index for PUSCH transmission (e.g., a first type of uplink transmission).
  • the uplink TCI state may be associated with a second P0 for a PUSCH transmission (e.g., a second type of uplink transmission).
  • UE 302 may also be provided with a first set of power control parameters including first P0, alpha, and a closed-loop index.
  • Base station 304 may indicate a joint TCI state or a UL TCI state from the list of joint TCI states and/or UL TCI states to UE 302.
  • UE 302 may be requested to apply the RS, which provides a reference for the uplink Tx spatial filter to apply on a PUSCH transmission.
  • UE 302 may be requested to apply the associated power control parameters (e.g., first P0, alpha, and a closed-loop index). If the joint or UL TCI state is provided with a second P0 for PUSCH transmission, base station 504 may use DO format 0_l or 0_2 to indicate whether the UE 302 should apply the first P0 or the second P0 to determine the uplink transmit power for a PUSCH transmission scheduled in the same DO.
  • UE 302 If the indicated joint TCI state or UL TCI state is not associated with power control parameters first P0, alpha, and a closed-loop index for a PUSCH transmission, UE 302 be requested to apply the power control parameters first P0, alpha, and a closed-loop index received separately from the list of joint TCI states or the list of UL TCI states.
  • base station 304 may use DO format 0_l or 0_2 to indicate which P0 UE 302 should apply on a scheduled PUSCH transmission.
  • UE 302 may be requested to apply the first P0 associated with indicated joint TCI state or UL TCI state, the first P0 included in the first set of power control parameters (e.g., if received separately from the list of joint TCI states or the list of UL TCI states), or the second P0.
  • UE 302 may be configured with a unified TCI framework.
  • UE 302 may be provided with a list of joint TCI states.
  • the RS configured as QCL-TypeD source may provide a reference for uplink Tx spatial filter for a PUCCH transmission or a PUSCH transmission.
  • Each joint TCI state may be associated with a first set of power control parameters (e.g., associated with a first type of uplink transmission) including first P0, alpha, and a closed-loop index for a PUSCH transmission.
  • the joint TCI state may be associated with a second set of power control parameters (e.g., associated with a second type of uplink transmission) including second P0, alpha, and a closed-loop index for a PUSCH transmission.
  • UE 302 may be provided with a list of uplink TCI states.
  • Each uplink TCI state may contain one RS, which may provide a reference for a uplink Tx spatial filter for a PUCCH transmission or a PUSCH transmission.
  • Each uplink TCI state may be associated with a first set of power control parameters including first P0, alpha, and a closed-loop index for PUSCH transmission.
  • the uplink TCI state may be associated with a second set of power control parameters including second P0, alpha, and a closed-loop index for a PUSCH transmission.
  • UE 302 may also be provided with a first set of power control parameters (e.g., firstPO, alpha, closed loop index), which is received separately from the list of joint TCI states and/or the list of UL TCI states.
  • Base station 304 may indicate a joint TCI state or a UL TC state for UE 302 to use in transmitting the first type of uplink transmission, and UE 302 may be requested to apply the RS that provides a reference for the uplink Tx spatial filter to use on the PUSCH transmission.
  • UE 302 may be requested to apply the associated power control parameters first P0, alpha, and a closed-loop index on the PUSCH transmission.
  • TCI state is provided with a second set of uplink power control parameters for PUSCH transmission (e.g., second P0, alpha, and closed-loop index)
  • base station 304 may use the DO to indicate that UE 302 should apply the associated first set or the associated second set to determine the uplink transmit power for the PUSCH transmission.
  • UE 302 may be requested to apply the power control parameters first P0, alpha, and the closed-loop index contained in the first set to the PUSCH transmission.
  • base station 304 may use the DO format 0_l or 0_2 to indicate which of the associated first set or the associated second set UE 302 should apply to a scheduled PUSCH transmission.
  • UE 302 may be requested to apply either the first set of uplink power control parameters or the second set of uplink power control parameters associated with an indicated joint TCI state or UL TCI state, depending on the type of uplink transmission associated with the scheduled PUSCH transmission.
  • FIG. 4 is a flowchart of a first exemplary method 400 of wireless communication, according to some embodiments of the present disclosure.
  • Method 400 may be performed by an apparatus for wireless communication, e.g., such as UE 102, 302, just to name a few.
  • Method 400 may include steps 402-412 as described below. It is to be appreciated that some of the steps may be optional, and some of the steps may be performed simultaneously, or in a different order than shown in FIG. 4.
  • the apparatus may receive first signaling from a base station that configures the UE with a plurality of TCI states each associated with a first open-loop power control parameter and a first type of uplink transmission.
  • UE 302 may be configured (at 301) with a unified TCI framework via first RRC signaling from base station 304.
  • the RRC signaling may carry a list of ' joint TCI states for which UE 302 is configured.
  • the RS configured as QCL-TypeD source may provide a reference for uplink Tx spatial filter for a PUCCH transmission and/or a PUSCH transmission.
  • Each joint TCI state (e.g., joint for both DL transmission(s) and UL transmission(s), where the beams are the same for the DL and UL directions) may be associated with a set of power control parameters, e.g., such as first P0, alpha, and closed loop index for PUSCH transmission (e.g., a first type of uplink transmission).
  • UE 302 may be provided with a list of K uplink TCI states.
  • Each uplink TCI state may be associated with one RS, which may provide a reference for an uplink Tx spatial filter that may be applied to a PUCCH transmission and/or PUSCH transmission.
  • Each uplink TCI state may be associated with a set of power control parameters including first P0, alpha, and a closed-loop index for a PUSCH transmission (e.g., a first type of uplink transmission).
  • the apparatus may receive second signaling from the base station that configures the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • UE 302 may be provided (at 303) with a second P0 for a PUSCH transmission (e.g., a second type of uplink transmission) not associated with a TCI state.
  • a PUSCH transmission not associated with a TCI state (e.g., second P0) may include an uplink transmission associated with a second set of QoS requirements, e.g., such as URLLC.
  • the apparatus may receive an IE indicating which TCI state of the plurality of TCI states to apply to the first type of uplink transmission. For example, referring to FIG. 3, base station 304 may configure (at 305) UE 302 with a particular TCI state from the list of joint TCI states or the list of UL TCI states.
  • the apparatus may receive PUSCH transmission scheduling information (DO) that includes an indication to apply the first open-loop power control parameter or the second open-loop power control parameter.
  • DO PUSCH transmission scheduling information
  • base station 304 sends (at 311) DO format 0_l or 0_2 to indicate the scheduled PUSCH transmission to UE 302.
  • base station 304 may use a bitfield of DO format 0_l or 0_2 to indicate whether the first P0 or the second P0 should be used for uplink open-loop power control. In other words, the transmit power UE 302 should apply to the scheduled PUSCH transmission.
  • the apparatus may identify whether to apply the first open-loop power control parameter or the second open-loop power control parameter based on the DO that schedules the PUSCH transmission. For example, referring to FIG. 3, UE 302 may identify (at 313) whether to apply the first P0 or the second P0 to the PUSCH transmission. In other words, UE 302 may use the indicated P0 to determine the transmit power for the PUSCH transmission as requested by base station 304.
  • the apparatus may transmit the PUSCH transmission to the base station by applying the first open-loop power control parameter or the second open-loop power control parameter indicated in the PUSCH scheduling information. For example, referring to FIG. 3, UE 302 may transmit (at 315) the PUSCH transmission using the transmit power associated with the P0 indicated in the DO that scheduled the PUSCH transmission.
  • FIG. 5 is a flowchart of a second exemplary method 500 of wireless communication, according to some embodiments of the present disclosure.
  • Method 500 may be performed by an apparatus for wireless communication, e.g., such as UE 102, 302, just to name a few.
  • Method 400 may include steps 502-516 as described below. It is to be appreciated that some of the steps may be optional, and some of the steps may be performed simultaneously, or in a different order than shown in FIG. 5.
  • the apparatus may transmit first signaling to configure a UE with a plurality of TCI states each associated with a first open-loop power control parameter, the plurality of TCI states being associated with a first type of uplink transmission.
  • UE 302 may be configured (at 301) with a unified TCI framework via first RRC signaling from base station 304.
  • the RRC signaling may carry a list of K joint TCI states for which UE 302 is configured.
  • the RS configured as QCL-TypeD source may provide a reference for uplink Tx spatial filter for a PUCCH transmission and/or a PUSCH transmission.
  • Each joint TCI state (e.g., joint for both DL transmission(s) and UL transmission(s), where the beams are the same for the DL and UL directions) may be associated with a set of power control parameters, e.g., such as first P0, alpha, and closed loop index for PUSCH transmission (e.g., a first type of uplink transmission). Additionally and/or alternatively, UE 302 may be provided with a list of K uplink TCI states. Each uplink TCI state may be associated with one RS, which may provide a reference for an uplink Tx spatial filter that may be applied to a PUCCH transmission and/or PUSCH transmission.
  • Each uplink TCI state may be associated with a set of power control parameters including first P0, alpha, and a closed loop index for a PUSCH transmission (e.g., a first type of uplink transmission).
  • the apparatus may transmit second signaling to configure the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • UE 302 may be provided (at 303) with a second P0 for a PUSCH transmission (e.g., a second type of uplink transmission) not associated with a TCI state.
  • a PUSCH transmission not associated with a TCI state (e.g., second P0) may include an uplink transmission associated with a second set of QoS requirements, e.g., such as UREEC.
  • the apparatus may transmit an information element indicating which TCI state of the plurality of TCI states the UE should apply to the first type of uplink transmission. For example, referring to FIG. 3, base station 304 may configure (at 305) UE 302 with a particular TCI state from the list of joint TCI states or the list of UL TCI states.
  • the apparatus may schedule a PUSCH transmission for the UE.
  • base station 304 may (at 307) schedule a PUSCH transmission for UE 302.
  • the apparatus may identify whether the PUSCH transmission is associated with the first type of uplink transmission or the second type of uplink transmission. For example, referring to FIG. 3, base station 304 may identify/determine (at 309) whether the PUSCH transmission is associated with the first P0 (e.g., a first type of uplink transmission) or second P0 (e.g., a second type of uplink transmission).
  • first P0 e.g., a first type of uplink transmission
  • second P0 e.g., a second type of uplink transmission
  • the apparatus may generate a DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • base station 304 may generate a DO (e.g., DO format 0_l or 0_2 as shown above in Tables 2-7) that schedules the PUSCH transmission and indicates the first P0 or the second P0.
  • base station 304 may use a bitfield of DO format 0_l or 0_2 to indicate whether the first P0 or the second P0 should be used for uplink open-loop power control. In other words, the transmit power UE 302 should apply to the scheduled PUSCH transmission.
  • the apparatus may transmit the DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • base station 304 sends (at 311) DO format 0_l or 0_2 to indicate the scheduled PUSCH transmission to UE 302.
  • the apparatus may receive the PUSCH from the UE based on either the first open-loop power control parameter or the second open-loop power control parameter as indicated in the DO. For example, referring to FIG. 3, UE 302 may transmit (at 315) the PUSCH transmission using the transmit power associated with the P0 indicated in the DCI that scheduled the PUSCH transmission.
  • a UE may be configured with multi-transmission/reception point (TRP) (such as access node 104) beam failure recovery in a multi-TRP system.
  • TRP transmission/reception point
  • the UE may be requested to detect the beam failure of each individual TRP, and when beam failure is detected, the UE may report the event of the beam failure of one TRP to the system.
  • the UE may also report one newly identified beam RS, which may be CSI-RS resource or a synchronization signal block (SSB).
  • SSB synchronization signal block
  • the UE may be configured with a beam failure detection RS set, which may contain one or more CSI-RS resources. For each TRP, the UE may monitor the CSI-RS resource(s) included in the beam failure detection RS set for that TRP to detect beam failure.
  • the UE may be provided with an association between a beam failure detection RS set of one TRP and one PUCCH resource. In other words, a PUCCH resource may be associated with a beam failure detection RS set of one TRP.
  • the UE may report the beam failure of that TRP (or call the beam failure of the corresponding beam failure detection RS set) to the system and the UE may also report a newly identified beam RS.
  • the newly identified beam RS may be a CSI-RS resource or SSB.
  • the UE may be requested to reset uplink power control parameters and the uplink spatial Tx filter of the PUCCH resource that is associated with beam failure detection RS for which the beam failure is reported.
  • a UE may be configured with a multi-TRP system, which may be a multi-DCI based multi-TRP system or a single-DCI based multi-TRP system.
  • the UE may be provided with two values for higher layer parameter control resource set (CORSET) pool index (CORESETPoolIndex). These two values may include 0 and 1 for respective first CORESETs and second CORESETs. Additionally and/or alternatively, the UE may be provided with a CORESETPoolIndex value 1 for second CORESETs and not provided with a CORESETPoolIndex value for first CORESETs.
  • CORSET higher layer parameter control resource set
  • CORESETPoolIndex two values for higher layer parameter control resource set
  • the UE may be provided with a CORESETPoolIndex value 1 for second CORESETs and not provided with a CORESETPoolIndex value for first CORESETs.
  • the UE may be provided with two beam failure detection RS sets: q 00 and q 0 1 , each of which may include one or more periodic CSI-RS resources.
  • the UE may be provided with an association between a PUCCH resource and one of the sets q 00 and q 0 1 .
  • the UE may be provided with an association between a first PUCCH resource and the set q 0 0 and an association between a second PUCCH resource and the set q 01 .
  • a first PUCCH resource in a high-layer configuration, may be provided with an indicator with values 0 or 1.
  • the values may indication the association between the first PUCCH resource and one of the sets q 0 0 and q 01 .
  • the indicator if the indicator is set to 0, the first PUCCH resource may be associated with set q 00 and if the indicator is set to 1, the first PUCCH resource may be associated with set q 0 1 .
  • the UE in a high-layer configuration, may be provided with two lists of PUCCH resource IDs: a first list and a second list.
  • the first list and the second list may contain the identifications (IDs) of PUCCH resources that are associated with the sets q 0 0 and q 01 , respectively.
  • the UE may be configured with one or more PUCCH resources, and each PUCCH resource may have a resource ID. Those PUCCH resources may be partitioned into two groups based on the PUCCH resource IDs: a first group and a second group. The PUCCH resources contained in the first group and the second group may be associated with the sets q 00 and q 0 1 , respectively.
  • the UE may report the cell’s index with q 00 and/or q 0 1 when the radio-link quality is worse than a threshold. This index of q 0 0 and/or q 0 1 may be reported in a first MAC control element (CE). In the first MAC CE, the UE may also report an index q new for the corresponding sets q 10 or q T 1 of the serving cell.
  • CE MAC control element
  • the UE may be requested to transmit a PUCCH resource using a same spatial domain filter as the one corresponding to q new .
  • CSI channel state information
  • the UE in a multi-DCI based multi-TRP system, may be provided two values for higher layer parameter CORESETPoolIndex: 0 and 1 for respective first CORESETs and second CORESETs. Additionally and/or alternatively, the UE may be provided with CORESETPoolIndex value 1 for second CORESETs and not provided with CORESETPoolIndex value for first CORESETs.
  • the UE may be provided with two beam failure detection RS sets: q 0 0 and q 01 . Each of the beam failure detection RS sets may include one or more periodic CSI-RS resources.
  • the UE may be provided with an association between a PUCCH resource and one of the sets q 0 0 and q 0 1 .
  • the UE may be provided with an association between a first PUCCH resource and the set q 0 0 , as well as an association between a second PUCCH resource and the set q 01 .
  • the UE may report the cell’s index with q 00 and/or q 0 1 when the radio-link quality is worse than a specified threshold and the index of the q 00 and/or q 0 1 in a first MAC CE.
  • the UE may also report an index q new for the corresponding sets q 10 or q T 1 of the serving cell.
  • the UE may be requested to transmit a PUCCH resource using a same spatial domain filter as the one corresponding to q new . This may occur for periodic CSI-RS or SSB/PBCH block reception and with a power associated with certain parameters.
  • these parameters may be determined based on which beam failure detection RS set is associated with the PUCCH resource.
  • a first PUCCH resource is associated with set q 0 1
  • the UE may provide a first PUSCH MAC CE index(es) for cell(s) with q 00 and/or q 10 that have radio-link quality worse than Q 0U t.LR, the index(es) of those q 0 0 and/or q 0 1 , and indication(s) of the presence of q new and of index(es) q new , if any, from corresponding sets q 1 0 and/or q 1 1 for the serving cells.
  • the UE may send the PUCCH transmission using the same spatial domain filter if 1) the PUCCH resource is associated with q 0 0 and q new is from q T 1 , if the PUCCH resource is associated with q 01 , or if one or more of the following
  • These conditions may include, e.g., 1) the PUCCH-secondary cell (SCell), primary cell (PCell), or primary secondary cell (PSCell) where the PUCCH resource is configured is included in the first PUSCH MAC CE, 2) the set q o ,o or Qo,i associated with the PUCCH resource is included in the first PUSCH MAC CE, and 3) the UE is provided PUCCH-SpatialRelationlnfo for the PUCCH, where the sub-carrier spacing (SCS) configuration for the 28 symbols is the smallest of the SCS configurations of the active DL bandwidth part (BWP) for the PDCCH reception and of the active DL bandwidth part(s) (BWP(s)) of the serving cells.
  • SCS sub-carrier spacing
  • the UE may provide in a first PUSCH MAC CE index(es) for cell(s) with q 00 and/or q 10 that have radio-link quality worse than Q 0U t.LR, the index(es) of those q 0 0 and/or q 0 1 , and indication(s) of the presence of q new and of index(es) q new , if any, from corresponding sets q 1 0 and/or q 1 t for the serving cells.
  • the power may be determined in this way if the PUCCH resource is associated with q 00 and q new is from q T 1 , if the PUCCH resource is associated with q 0 1 , if the PUCCH-SCell or PCell or PSCell were the PUCCH resource is configured is included in the first PUSCH MAC CE, if the set q 0 0 or q 0 1 associated with the PUCCH resource is included in the first PUSCH MAC CE, and/or if the UE is provided PUCCH-SpatialRelationlnfo for the PUCCH, where the SCS configuration for the 28 symbols is the smallest of SCS configurations of the active DL bandwidth part (BWP) for the PDCCH reception and of the active DL bandwidth part(s) (BWP(s)) of the serving cells.
  • BWP active DL bandwidth part
  • the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or encoded as instructions or code on a non-transitory computer-readable medium.
  • Computer-readable media includes computer storage media. Storage media may be any available media that may be accessed by a computing device, such as node 200 in FIG. 2.
  • such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, HDD, such as magnetic disk storage or other magnetic storage devices, Flash drive, SSD, or any other medium that may be used to carry or store desired program code in the form of instructions or data structures and that may be accessed by a processing system, such as a mobile device or a computer.
  • Disk and disc includes CD, laser disc, optical disc, digital video disc (DVD), and floppy disk where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
  • a method of wireless communication of a UE may include receiving, by a communication interface, first signaling from a base station that configures the UE with plurality of TCI states each associated with a first open-loop power control parameter.
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the method may include receiving, by the communication interface, second signaling from the base station that configures the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the method may include identifying, by at least one processor, whether to apply the first openloop power control parameter or the second open-loop power control parameter to a scheduled PUSCH transmission based on an indication included in DO that schedules the PUSCH transmission.
  • the method may include transmitting, by the communication interface, the PUSCH transmission to the base station based on either the first open-loop power control parameter or the second open-loop power control parameter based on the indication in the DO.
  • the method may further include receiving, by the communication interface, an information element indicating which TCI state of the plurality of TCI states to apply to the first type of uplink transmission.
  • the transmitting, by the communication interface, the PUSCH transmission to the base station may include transmitting the PUSCH transmission using the first open-loop power control parameter associated with the TCI state indicated by the information element.
  • the DO may include format 0_l or format 0_2.
  • the first type of uplink transmission may be associated with a first set of QoS requirements
  • the second type of uplink transmission is associated with a second set of QoS requirements different than the first set of QoS requirements.
  • an apparatus for wireless communication of a UE may include at least one processor.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform receiving first signaling from a base station that configures the UE with a plurality of TCI states each corresponding to a first open-loop power control parameter.
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform receiving second signaling from the base station that configures the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform identifying whether to apply the first open-loop power control parameter or the second open-loop power control parameter to a scheduled PUSCH transmission based on an indication included in DO that schedules the PUSCH transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting the PUSCH transmission to the base station using either the first open-loop power control parameter or the second open-loop power control parameter based on the indication in the DO.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may further cause the at least one processor to perform receiving an information element indicating which TCI state of the plurality of TCI states to apply to the first type of uplink transmission.
  • the memory when the first open-loop power control parameter is identified based on the DO, the memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform the transmitting the PUSCH transmission to the base station by transmitting the PUSCH transmission using the first open-loop power control parameter associated with the TCI state indicated by the information element.
  • the DO may include format 0_l or format 0_2.
  • the first type of uplink transmission may be associated with a first set of QoS requirements
  • the second type of uplink transmission is associated with a second set of QoS requirements different than the first set of QoS requirements.
  • a method of wireless communication of a base station may include transmitting, by a communication interface, first signaling to configure a UE with a plurality of TCI states each associated with a first open-loop power control parameter.
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the method may include transmitting, by the communication interface, second signaling to configure the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the method may include scheduling, by at least one processor, a PUSCH transmission for the UE.
  • the method may include identifying, by at least one processor, whether the PUSCH transmission is associated with the first type of uplink transmission or the second type of uplink transmission.
  • the method may include generating, by the at least one processor, DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • the method may include transmitting, by the communication interface, the DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • the method may further include transmitting, by the communication interface, an information element indicating which TCI state of the plurality of TCI states the UE should apply to the first type of uplink transmission.
  • the method may further include receiving, by the communication interface, the PUSCH from the UE based on either the first open-loop power control parameter or the second open-loop power control parameter as indicated in the DO.
  • the DO may include format 0_l or format 0_2.
  • the first type of uplink transmission may be associated with a first set of QoS requirements
  • the second type of uplink transmission is associated with a second set of QoS requirements different than the first set of QoS requirements.
  • an apparatus for wireless communication of a base station may include at least one process.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting first signaling to configure a UE with a plurality of TCI states each associated with a first open-loop power control parameter.
  • the plurality of TCI states may be associated with a first type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting second signaling to configure the UE with a second open-loop power control parameter associated with a second type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform scheduling, by at least one processor, a PUSCH transmission for the UE.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform identifying whether the PUSCH transmission is associated with the first type of uplink transmission or the second type of uplink transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform generating DO that schedules the PUSCH transmission for the UE and indicates whether the UE should apply the first open-loop power control parameter or the second open-loop power control parameter to the PUSCH transmission.
  • the apparatus may include memory storing instructions, which when executed by the at least one processor, may cause the at least one processor to perform transmitting the PUSCH transmission to the base station based on either the first open-loop power control parameter or the second open-loop power control parameter as indicated in the DO.
  • the memory storing instructions, which when executed by the at least one processor, may further cause the at least one processor to perform transmitting an information element indicating which TCI state of the plurality of TCI states the UE should apply to the first type of uplink transmission.
  • the memory storing instructions, which when executed by the at least one processor, may further cause the at least one processor to perform receiving the PUSCH from the UE based on either the first open-loop power control parameter or the second open-loop power control parameter as indicated in the DO.
  • the DO may include format 0_l or format 0_2.
  • the first type of uplink transmission may be associated with a first set of QoS requirements
  • the second type of uplink transmission is associated with a second set of QoS requirements different than the first set of QoS requirements.

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

Abstract

Un aspect de la présente divulgation concerne un procédé de communication sans fil d'un équipement utilisateur (UE). Le procédé peut consister à recevoir une première signalisation qui configure une pluralité d'états d'indicateur de commande de transmission (TCI) associés chacun à un premier paramètre de commande de puissance en boucle ouverte et à un premier type de transmission en liaison montante. Le procédé peut consister à recevoir une seconde signalisation qui configure un second paramètre de commande de puissance en boucle ouverte associé à un second type de transmission en liaison montante. Le procédé peut consister à identifier s'il faut appliquer le premier paramètre de commande de puissance en boucle ouverte ou le second paramètre de commande de puissance en boucle ouverte à un canal partagé de liaison montante physique planifié (PUSCH) sur la base d'une indication incluse dans des informations de commande de liaison descendante (DCI) qui programme la transmission PUSCH. Le procédé peut consister à transmettre la transmission PUSCH sur la base du premier paramètre de commande de puissance en boucle ouverte ou du second paramètre de commande de puissance en boucle ouverte indiqué dans les DCI.
PCT/IB2022/059199 2021-09-27 2022-09-27 Appareil et procédé d'identification de commande de puissance de liaison montante en boucle ouverte pour des états d'indication de commande de transmission (tci) unifiés WO2023047387A1 (fr)

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US202163248788P 2021-09-27 2021-09-27
US63/248,788 2021-09-27
US202163263643P 2021-11-05 2021-11-05
US63/263,643 2021-11-05

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200059867A1 (en) * 2017-03-22 2020-02-20 Idac Holdings, Inc. Methods for performing power control in new radio (nr) systems
CN110831135A (zh) * 2018-08-10 2020-02-21 华为技术有限公司 一种功率控制的方法和装置
WO2021056506A1 (fr) * 2019-09-29 2021-04-01 Apple Inc. Indication de relation spatiale de liaison montante et commande de puissance
US20210160784A1 (en) * 2019-11-21 2021-05-27 Qualcomm Incorporated Power control indication for multiple services
WO2021147001A1 (fr) * 2020-01-22 2021-07-29 Oppo广东移动通信有限公司 Procédé de détermination de paramètre de commande de puissance, terminal, dispositif de réseau, et support de stockage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200059867A1 (en) * 2017-03-22 2020-02-20 Idac Holdings, Inc. Methods for performing power control in new radio (nr) systems
CN110831135A (zh) * 2018-08-10 2020-02-21 华为技术有限公司 一种功率控制的方法和装置
WO2021056506A1 (fr) * 2019-09-29 2021-04-01 Apple Inc. Indication de relation spatiale de liaison montante et commande de puissance
US20210160784A1 (en) * 2019-11-21 2021-05-27 Qualcomm Incorporated Power control indication for multiple services
WO2021147001A1 (fr) * 2020-01-22 2021-07-29 Oppo广东移动通信有限公司 Procédé de détermination de paramètre de commande de puissance, terminal, dispositif de réseau, et support de stockage

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