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WO2025039558A1 - Procédé et appareil d'aide à l'adaptation de faisceau - Google Patents

Procédé et appareil d'aide à l'adaptation de faisceau Download PDF

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Publication number
WO2025039558A1
WO2025039558A1 PCT/CN2024/085210 CN2024085210W WO2025039558A1 WO 2025039558 A1 WO2025039558 A1 WO 2025039558A1 CN 2024085210 W CN2024085210 W CN 2024085210W WO 2025039558 A1 WO2025039558 A1 WO 2025039558A1
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WO
WIPO (PCT)
Prior art keywords
reception
transmission
beam information
power
geographical area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/085210
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English (en)
Inventor
Hongmei Liu
Yuantao Zhang
Ruixiang MA
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Lenovo Beijing Ltd
Original Assignee
Lenovo Beijing Ltd
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Filing date
Publication date
Application filed by Lenovo Beijing Ltd filed Critical Lenovo Beijing Ltd
Priority to PCT/CN2024/085210 priority Critical patent/WO2025039558A1/fr
Publication of WO2025039558A1 publication Critical patent/WO2025039558A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/362—Aspects of the step size
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/48—TPC being performed in particular situations during retransmission after error or non-acknowledgment

Definitions

  • the present disclosure relates to wireless communications, and more specifically to techniques for beam adaption.
  • a wireless communications system may include one or multiple network communication devices, such as base stations, which may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology.
  • the wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers, or the like) .
  • the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
  • the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.
  • Some implementations of the methods and apparatuses described herein may further include a UE for wireless communication, which includes: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the UE to: receive information associated with a geographical area, wherein the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area; receive beam information that indicates one or more of a beam index, a beam width, a transmission power, a reception power, an antenna gain, an identifier associated with a non-terrestrial network entity, or a reference signal (RS) index; and determine one or more of a transmission power of an uplink transmission, a repetition number of the uplink transmission, a reception power of a downlink reception, or a repetition number of the downlink reception based on the information associated with the geographical area and the beam information.
  • RS reference signal
  • the uplink transmission is a physical uplink shared channel (PUSCH) transmission
  • the at least one processor is configured to cause the UE to determine applicable beam information for the uplink transmission based on: a time instance of a physical downlink control channel (PDCCH) reception associated with the PUSCH transmission; a time instance before a first occasion of the PUSCH transmission by a configured or predefined offset; or a time instance of a first occasion of the PUSCH transmission.
  • PUSCH physical uplink shared channel
  • the uplink transmission is a physical uplink control channel (PUCCH) transmission
  • the at least one processor is configured to cause the UE to determine applicable beam information for the uplink transmission based on: a time instance of a PDCCH reception associated with the PUCCH transmission; a time instance of a physical downlink shared channel (PDSCH) reception associated with the PUCCH transmission; a time instance of a first occasion of the PUCCH transmission; or a time instance before a first occasion of the PUCCH transmission by a configured or predefined offset.
  • PUCCH physical uplink control channel
  • the uplink transmission is a sounding reference signal (SRS) transmission
  • the at least one processor is configured to cause the UE to determine applicable beam information for the uplink transmission based on: a time instance of a downlink control information (DCI) reception associated with the SRS transmission; a time instance of a first occasion of the SRS transmission; or a time instance before a first occasion of the SRS transmission by a configured or predefined offset.
  • DCI downlink control information
  • the uplink transmission is a physical random access channel (PRACH) transmission
  • the at least one processor is configured to cause the UE to determine applicable beam information for the uplink transmission based on: a time instance of a PDCCH order reception associated with the PRACH transmission; a time instance of a first occasion of the PRACH transmission; or a time instance before a first occasion of the PRACH transmission by a configured or predefined offset.
  • PRACH physical random access channel
  • the uplink transmission is a retransmission of a PRACH
  • the at least one processor is configured to cause the UE to determine applicable beam information for the uplink transmission based on: a time instance of a starting or ending of a random access response (RAR) monitoring window associated with the retransmission of the PRACH; a time instance of a first occasion of the retransmission of the PRACH; or a time instance of a first occasion of the PRACH.
  • RAR random access response
  • the downlink reception is a PDCCH reception
  • the at least one processor is configured to cause the UE to determine applicable beam information for the downlink reception based on: a time instance of a first occasion of the PDCCH reception; a time instance before a first occasion of the PDCCH reception by a configured or predefined offset; or a starting time instance of application of a latest beam information before a first occasion of the PDCCH reception.
  • the downlink reception is a PDSCH reception
  • the at least one processor is configured to cause the UE to determine applicable beam information for the downlink reception based on: a time instance of a first occasion of the PDSCH reception; a time instance of a PDCCH reception associated with the PDSCH reception; a time instance before a first occasion of the PDSCH reception by a configured or predefined offset; or a starting time instance of application of a latest beam information before a first occasion of the PDSCH reception.
  • determining the power of an uplink transmission includes: determining a scaling factor for the power of the uplink transmission based on applicable beam information.
  • determining the power of an uplink transmission includes: determining one or more of following power control parameters: a reception power expected by network, a path loss value, or a coefficient for a path loss value for the power of the uplink transmission based on applicable beam information.
  • the at least one processor in the case that applicable beam information is between a first transmission power control (TPC) command and a second TPC command, is configured to cause the UE to: determine the power of the uplink transmission based on the applicable beam information without considering the second TPC command or without considering any accumulative TPC command for the uplink transmission.
  • TPC transmission power control
  • the at least one processor is configured to: determine the power of the uplink transmission by adding the power ramping value to a power determined based on the second applicable beam information.
  • the at least one processor is configured to cause the UE to: determine the power of the uplink transmission by adding the power ramping value to the power determined based on the second beam information while subtracting other associated power ramping values before application of the second applicable beam information.
  • the at least one processor is configured to cause the UE to transmit or receive the second part of repeated occasions within the second active duration with a repetition number, wherein the repetition number in the second active duration is determined based on a remaining repetition number of the uplink transmission or the downlink reception and the second applicable beam information.
  • a relationship between the one or more of a transmission power of an uplink transmission, a repetition number of an uplink transmission, a reception power of a downlink reception, or a repetition number of a downlink reception and applicable beam information is configured or defined.
  • Some implementations of the methods and apparatuses described herein may further include a method performed by a UE, which includes: receiving information associated with a geographical area, wherein the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area; receiving beam information that indicates one or more of a beam index, a beam width, a transmission power, a reception power, an antenna gain, an identifier associated with a non-terrestrial network entity, or a RS index; and determining one or more of a transmission power of an uplink transmission, a repetition number of the uplink transmission, a reception power of a downlink reception, or a repetition number of the downlink reception based on the information associated with the geographical area and the beam information.
  • Figure 6 illustrates an example of a processor in accordance with aspects of the present disclosure.
  • Figure 8 illustrates a flowchart of method performed by a UE in accordance with aspects of the present disclosure.
  • Figure 9 illustrates a flowchart of method performed by a NE in accordance with aspects of the present disclosure.
  • the satellite etc. which acts as a gNB or the like in NTN, will sweep its beams among different footprints. Therefore, for a specific area or footprint, the service or coverage associated with the area provided by the satellite may be active (or “on” ) or inactive (or “off” ) due to beam on-off (active-inactive) , beam transmission power changes or beam width changes etc., which will impact the communications between the satellite and UE.
  • Exemplary impacts include impacts on periodic and/or semi-static downlink (DL) /uplink (UL) communications, impacts on interactions or responses from downlink to uplink and from uplink to downlink, and impacts on RACH or PRACH procedure etc.
  • impacts on power of uplink and downlink communications and impacts on repetition numbers of uplink and downlink communication repetitions will be considered.
  • satellite changes may impact the selection of beam identifier (ID) to determine repetition numbers and/or communication power.
  • ID beam identifier
  • a set of power control parameters are associated with a RS.
  • the associated RS may not change, which may render determination of power control parameters only based on the association with RS unsuitable.
  • downlink transmitting (Tx) power change in network side may lead to change of the repetition number of downlink communication repetitions, and uplink Tx power and antenna gain in UE side may also have similar issues. All these issues will be solved in the present disclosure.
  • a NE e.g., a satellite or the like may transmit information associated with a geographical area to UE, e.g., by a radio resource control (RRC) signaling or DCI etc.
  • the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area.
  • RRC radio resource control
  • the information associated with a geographical area may indicate an active-inactive pattern (or on-off pattern, active-inactive configuration, or active-inactive mode or the like) of a geographical area associated with the UE, which includes time domain resources of active durations (or on durations or the like) of the geographical area and time domain resources of inactive durations (or off durations or the like) of the geographical area.
  • the NE may also transmit beam information to UE, e.g., by DCI etc.
  • the beam information indicates one or more of a beam index, a beam width, a transmission power, a reception power, an antenna gain, an identifier associated with a non-terrestrial network entity, or a RS index.
  • the beam information will be applicable from a time instance.
  • UE may determine one or more of a transmission power of an uplink transmission or a reception power of a downlink reception.
  • UE may determine a repetition number of the uplink transmission and/or a repetition number of the downlink reception based on the information associated with a geographical area and the beam information. The NE will perform the corresponding determination, so as to keep consistent communications or operations with UE.
  • UE for operations in UE, besides the associated scheduling or configuration information from the NE, UE will also consider the information of the associated geographical area to reduce or avoid the impacts caused by inactive durations of the geographical area. Accordingly, the present disclosure will ensure the communication quality, save power and reduce resource wastes.
  • FIG. 1 illustrates an example of a wireless communications system 80 in accordance with aspects of the present disclosure.
  • the wireless communications system 80 may include one or more NE 102, one or more UE 104, and a core network (CN) 106.
  • the wireless communications system 80 may support various radio access technologies.
  • the wireless communications system 80 may be a 4G network, such as an LTE network or an LTE-Advanced (LTE-A) network.
  • LTE-A LTE-Advanced
  • the wireless communications system 80 may be a NR network, such as a 5G network, a 5G-Advanced (5G-A) network, or a 5G ultrawideband (5G-UWB) network.
  • the wireless communications system 80 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 602.11 (Wi-Fi) , IEEE 602.16 (WiMAX) , IEEE 602.20.
  • the wireless communications system 80 may support radio access technologies beyond 5G, for example, 6G. Additionally, the wireless communications system 80 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • CDMA code division multiple access
  • the one or more NE 102 may be dispersed throughout a geographic region to form the wireless communications system 80.
  • One or more of the NE 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a network function, a network entity, a radio access network (RAN) , a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology.
  • An NE 102 and a UE 104 may communicate via a communication link, which may be a wireless or wired connection.
  • an NE 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.
  • An NE 102 may provide a geographic coverage area for which the NE 102 may support services for one or more UEs 104 within the geographic coverage area.
  • an NE 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies.
  • an NE 102 may be moveable, for example, a satellite associated with a NTN.
  • different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas may be associated with different NE 102.
  • the one or more UE 104 may be dispersed throughout a geographic region of the wireless communications system 80.
  • a UE 104 may include or may be referred to as a remote unit, a mobile device, a wireless device, a remote device, a subscriber device, a transmitter device, a receiver device, or some other suitable terminology.
  • the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples.
  • the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples.
  • IoT Internet-of-Things
  • IoE Internet-of-Everything
  • MTC machine-type communication
  • a UE 104 may be able to support wireless communication directly with other UEs 104 over a communication link.
  • a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link.
  • D2D device-to-device
  • the communication link 114 may be referred to as a sidelink.
  • a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
  • An NE 102 may support communications with the CN 106, or with another NE 102, or both.
  • an NE 102 may interface with other NE 102 or the CN 106 through one or more backhaul links (e.g., S1, N2, N2, or network interface) .
  • the NE 102 may communicate with each other directly.
  • the NE 102 may communicate with each other or indirectly (e.g., via the CN 106.
  • one or more NE 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) .
  • An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
  • TRPs transmission-reception points
  • the CN 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions.
  • the CN 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) .
  • EPC evolved packet core
  • 5GC 5G core
  • MME mobility management entity
  • AMF access and mobility management functions
  • S-GW serving gateway
  • PDN gateway Packet Data Network gateway
  • UPF user plane function
  • control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more NE 102 associated with the CN 106.
  • NAS non-access stratum
  • the CN 106 may communicate with a packet data network over one or more backhaul links (e.g., via an S1, N2, N2, or another network interface) .
  • the packet data network may include an application server.
  • one or more UEs 104 may communicate with the application server.
  • a UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the CN 106 via an NE 102.
  • the CN 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server using the established session (e.g., the established PDU session) .
  • the PDU session may be an example of a logical connection between the UE 104 and the CN 106 (e.g., one or more network functions of the CN 106) .
  • the NEs 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) .
  • the NEs 102 and the UEs 104 may support various frame structures based on one or more numerologies.
  • One or more numerologies may be supported in the wireless communications system 80, and a numerology may include a subcarrier spacing and a cyclic prefix.
  • UE may determine the time domain resource to be associated with default beam information or assume that the geographical area is in an inactive duration, which depends on a predefined rule.
  • Some exemplary implementations in accordance with aspects of the present disclosure for determining applicable beam information are illustrated in the following in view of various uplink transmissions and downlink receptions in UE side. Persons skilled in the art would well know how to determine applicable beam information for downlink transmission and uplink reception in network side based on the disclosure in the UE side, and thus will not repeat.
  • an exemplary uplink transmission is a PUSCH transmission.
  • UE may determine the applicable beam information for the uplink transmission based on: a time instance of a PDCCH reception associated with the PUSCH transmission, a time instance before the first occasion of the PUSCH transmission (or starting of the PUSCH transmission) by a configured or predefined offset, or a time instance of the first occasion of the PUSCH transmission.
  • an exemplary uplink transmission is a PUCCH transmission.
  • UE may determine the applicable beam information for the uplink transmission based on: a time instance of a PDCCH reception associated with the PUCCH transmission, a time instance of a PDSCH reception associated with the PUCCH transmission, a time instance of the first occasion of the PUCCH transmission (or starting of the PUCCH transmission) , or a time instance before the first occasion of the PUCCH transmission by a configured or predefined offset.
  • an exemplary uplink transmission is a PRACH transmission.
  • UE may determine the applicable beam information for the uplink transmission based on: a time instance of a PDCCH order reception associated with the PRACH transmission, a time instance of the first occasion of the PRACH transmission (or starting of the PRACH transmission) , or a time instance before the first occasion of the PRACH transmission by a configured or predefined offset.
  • the applicable beam information may be determined based on a time instance of the first occasion of the PRACH transmission, or a time instance before the first occasion of the PRACH transmission by a configured or predefined offset.
  • the applicable beam information may be determined based on a time instance of the first occasion of the PRACH transmission, or a time instance of a PDCCH order reception associated with the PRACH transmission.
  • an exemplary uplink transmission is a retransmission of a PRACH.
  • UE may determine the applicable beam information for the uplink transmission based on: a time instance of a starting or ending of a RAR monitoring window associated with the retransmitted PRACH, a time instance of the first occasion of the retransmitted PRACH (or starting of the PRACH retransmission) , or a time instance of the first occasion of the PRACH (the original one) .
  • Figure 2 illustrates examples of determining applicable beam information for uplink transmissions in accordance with aspects of the present disclosure.
  • UE receives first beam information, e.g., beam #1 in time t0, which is applicable from time t1; and receives second beam information, e.g., beam #2 in time t2, which is applicable from time t3.
  • first beam information e.g., beam #1 in time t0
  • second beam information e.g., beam #2 in time t2
  • a PUSCH transmission after t3 is associated with a PDCCH received between t1 and t2. Then, the applicable beam information for the PUSCH transmission will be beam#1 based on the time instance of the PDCCH reception associated with the PUSCH transmission, or the applicable beam information for the PUSCH transmission will be beam#2 based on the time instance of the starting of the PUSCH transmission.
  • a PUCCH transmission after t3 is associated with a PDCCH or a PUSCH received between t1 and t2. Then, the applicable beam information for the PUCCH transmission will be beam #1 based on the time instance of the associated PDCCH reception or PDSCH reception, or the applicable beam information for the PUCCH transmission will be beam #2 based on the time instance of the starting of the PUCCH transmission.
  • an exemplary downlink reception is a PDCCH reception.
  • UE may determine the applicable beam information for the downlink reception based on: a time instance of the first occasion of the PDCCH reception (or starting of the PDCCH reception) , a time instance before the first occasion of the PDCCH reception by a configured or predefined offset, or a starting time instance of application of the latest beam information before the first occasion of the PDCCH reception.
  • an exemplary downlink reception is a PDSCH reception.
  • UE may determine the applicable beam information for the downlink reception based on: a time instance of the first occasion of the PDSCH reception, a time instance of a PDCCH reception associated with the PDSCH reception, a time instance before the first occasion of the PDSCH reception by a configured or predefined offset, or a starting time instance of application of the latest beam information before the first occasion of the PDSCH reception.
  • the uplink transmission is transmission repetitions with a repetition number and/or the downlink reception is reception repetitions with a repetition number, which may be interrupted by inactive duration (s) .
  • inactive duration s
  • the uplink transmission and/or the downlink reception may include a first part of repeated occasions starting in a first active duration of the geographical area associated with first applicable beam information, and a second part of repeated occasions (or the resumed part) within a second active duration (after the first active duration) of the geographical area associated with second applicable beam information.
  • UE may determine the first applicable beam information as illustrated above.
  • the second applicable beam information for the second part of repeated occasions UE may determine it based on: a time instance of the starting of the second active duration, a time instance of the starting of the second part of repeated occasions, a starting time instance of application of the latest beam information before the second part of repeated occasions; or a time instance before the starting of the second part of repeated occasions by a configured or predefined offset.
  • the relationship between the applicable beam information and the uplink transmission power or downlink reception power is configured or predefined.
  • the uplink transmission and/or downlink reception is repetitions with a repetition number
  • the relationship between the applicable beam information and the repetition number of the uplink transmission and/or downlink reception is also configured or predefined. Accordingly, in UE side, one or more of the uplink transmission power, the downlink reception power, the uplink transmission repetition number, or the downlink reception repetition number will be determined based on the applicable beam information.
  • UE may determine the uplink transmission power in various manners.
  • a scaling factor is used for determining the uplink transmission power, which is associated with the corresponding beam information, e.g., configured by RRC or media access control (MAC) control element (CE) .
  • UE will determine a scaling factor for the uplink transmission power based on the applicable beam information. For example, it is assumed that for a wide beam with an identifier, e.g., beam id #1, its associated scaling factor is 2, and for a narrow beam with an identifier, e.g., beam id#2, its associated scaling factor is 1. The reason is that the antenna gain with wide beam is smaller than that generated by a narrow beam. The number of antenna elements required for a wide beam is smaller than that required for a narrow beam.
  • UE will use the scaling factor of 2 for determining the uplink transmission power; and in the case that the applicable beam information indicates beam id#2, UE will use the scaling factor of 1 for determining the uplink transmission power.
  • a power control parameter set for uplink transmission power is associated with the corresponding beam information.
  • An exemplary power control parameter set at least includes the expected received power in the network side (e.g., P O_PUSCH , P O_PUCCH , P O_SRS , P O_PRACH etc. ) , pathloss (e.g., PL) , or a coefficient associated with pathloss value (e.g., ⁇ for a pathloss value) .
  • UE will determine the power control parameter set based on the applicable beam information, and then calculate the transmission power for the corresponding uplink transmission, e.g., PUSCH, PUCCH or SRS etc., based on the determined power control parameter set.
  • the applicable beam information is between two TPC commands and at least one power control parameter is adjusted by the beam information while the TPC command after the beam information is to adjust the uplink transmission power by an accumulative way, and UE will determine the uplink transmission power based on the applicable beam information without considering the accumulative TPC command after the beam information.
  • UE in the case that the applicable beam information is between two TPC commands and at least one power control parameter is adjusted by the beam information, UE will determine the uplink transmission power based on the applicable beam information without considering the TPC command after the beam information, that is, the TPC command after the beam information will be neglected and not to be applied regardless of being accumulative or not.
  • the uplink transmission is a retransmitted PRACH.
  • the transmission power for the retransmitted PRACH may be increased compared with the previously transmitted PRACH.
  • there may be power ramping for the retransmitted PRACH which may be associated with updated beam information. How to determine the transmission power for the retransmitted PRACH also needs to be considered.
  • a PRACH is associated with first applicable beam information and the retransmitted PRACH is associated with a power ramping value and second applicable beam information.
  • UE will determine the power of the retransmitted PRACH by adding the power ramping value to a power determined based on the second applicable beam information.
  • UE will determine the power of the retransmitted PRACH by adding the power ramping value to the power determined based on the second beam information while subtracting other associated power ramping values before application of the second applicable beam information. That is, the power ramping is restarted.
  • Figure 3 illustrates an example of determining power for retransmitted PRACH in accordance with aspects of the present disclosure.
  • UE receives first beam information, e.g., beam #1 in time t0, which is applicable from time t1; and receives second beam information, e.g., beam #2 in time t2, which is applicable from time t3.
  • first beam information e.g., beam #1 in time t0
  • second beam information e.g., beam #2 in time t2
  • PRACH#2 and PRACH#3 are retransmissions of PRACH#1, wherein PRACH#1 is transmitted before t0, PRACH#2 is transmitted between t1 and t2, and PRACH#3 is transmitted after t3. So PRACH#2 is associated with the first beam information and PRACH#3 is associated with the second beam information.
  • the power ramping value for PRACH#2 compared with PRACH#1 is Paa
  • the power ramping value for PRACH#3 compared with PRACH#2 is Pa
  • the power for the PRACH#2 is P1.
  • the transmission power at gNB side is also related to the applicable beam information. From UE side, it will determine the downlink reception power based on the applicable beam information.
  • the repetition number will also be determined based on the applicable beam information.
  • the repetitions may be interrupted by an inactive duration.
  • the interrupted repetitions will be resumed in the following (or next) on-duration (s) , and the remaining repetition number will be calculated ore recalculated based on the applicable beam information for the following on-duration.
  • the uplink transmission or downlink reception may include a first part of repeated occasions starting in a first active duration associated with first applicable beam information and a second part of repeated occasions within a second active duration (after the first active duration) associated with second applicable beam information, UE may determine a repetition number of the second part of repeated occasions within the second active duration based on the remaining repetition number of the uplink transmission or downlink reception and the second applicable beam information.
  • Figure 4 illustrates an example of determining the repetition number for the resumed repeated occasions in accordance with aspects of the present disclosure.
  • UE receives first beam information, e.g., beam #1 in time t0 in an on-duration, which is a wide beam and will be applicable from time t1;and receives second beam information, e.g., beam #2 in time t2 in another on-duration, which is a narrow beam and will be applicable from time t2.
  • first beam information e.g., beam #1 in time t0 in an on-duration
  • second beam information e.g., beam #2 in time t2 in another on-duration, which is a narrow beam and will be applicable from time t2.
  • the uplink transmission is a PUSCH with repetition number 4, and the first two 2 repetitions, e.g., repetition#1 and repetition#2 are transmitted in the first on-duration, and there are 2 remaining repetitions to be resumed. Since the second beam information indicates a narrow beam, which has a higher power than the wide beam, the 2 remaining repetitions may be recalculated to be 1 repetition. That is, only one repetition will be resumed.
  • FIG. 5 illustrates an example of a UE 500 in accordance with aspects of the present disclosure.
  • the UE 500 may include a processor 502, a memory 504, a controller 506, and a transceiver 508.
  • the processor 502, the memory 504, the controller 506, or the transceiver 508, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein.
  • These components may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces.
  • the processor 502, the memory 504, the controller 506, or the transceiver 508, or various combinations or components thereof may be implemented in hardware (e.g., circuitry) .
  • the hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , or other programmable logic device, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • the processor 502 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof) .
  • the processor 502 may be configured to operate the memory 504.
  • the memory 504 may be integrated into the processor 502.
  • the processor 502 may be configured to execute computer-readable instructions stored in the memory 504 to cause the UE 500 to perform various functions of the present disclosure.
  • the memory 504 may include volatile or non-volatile memory.
  • the memory 504 may store computer-readable, computer-executable code including instructions when executed by the processor 502 cause the UE 500 to perform various functions described herein.
  • the code may be stored in a non-transitory computer-readable medium such the memory 504 or another type of memory.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
  • the processor 502 and the memory 504 coupled with the processor 502 may be configured to cause the UE 500 to perform one or more of the functions described herein (e.g., executing, by the processor 502, instructions stored in the memory 504) .
  • the processor 502 may support wireless communication at the UE 500 in accordance with examples as disclosed herein.
  • the UE 500 may be configured to support a means for receiving information associated with a geographical area, wherein the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area; a means for receiving beam information that indicates one or more of a beam index, a beam width, a transmission power, a reception power, an antenna gain, an identifier associated with a non- terrestrial network entity, or a RS index; and a means for determining one or more of a transmission power of an uplink transmission, a repetition number of the uplink transmission, a reception power of a downlink reception, or a repetition number of the downlink reception based on the information associated with the geographical area and the beam information.
  • the controller 506 may manage input and output signals for the UE 500.
  • the controller 506 may also manage peripherals not integrated into the UE 500.
  • the controller 506 may utilize an operating system such as or other operating systems.
  • the controller 506 may be implemented as part of the processor 502.
  • the UE 500 may include at least one transceiver 508. In some other implementations, the UE 500 may have more than one transceiver 508.
  • the transceiver 508 may represent a wireless transceiver.
  • the transceiver 508 may include one or more receiver chains 510, one or more transmitter chains 512, or a combination thereof.
  • a receiver chain 510 may be configured to receive signals (e.g., control information, data, packets) over a wireless medium.
  • the receiver chain 510 may include one or more antennas for receive the signal over the air or wireless medium.
  • the receiver chain 510 may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal.
  • the receiver chain 510 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal.
  • the receiver chain 510 may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
  • a transmitter chain 512 may be configured to generate and transmit signals (e.g., control information, data, packets) .
  • the transmitter chain 512 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium.
  • the at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) .
  • the transmitter chain 512 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium.
  • the transmitter chain 512 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.
  • FIG. 6 illustrates an example of a processor 600 in accordance with aspects of the present disclosure.
  • the processor 600 may be an example of a processor configured to perform various operations in accordance with examples as described herein.
  • the processor 600 may include a controller 602 configured to perform various operations in accordance with examples as described herein.
  • the processor 600 may optionally include at least one memory 604, which may be, for example, an L1/L2/L3 cache. Additionally, or alternatively, the processor 600 may optionally include one or more arithmetic-logic units (ALUs) 606.
  • ALUs arithmetic-logic units
  • One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
  • the processor 600 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein.
  • a protocol stack e.g., a software stack
  • operations e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading
  • the processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 600) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
  • RAM random access memory
  • ROM read-only memory
  • DRAM dynamic RAM
  • SDRAM synchronous dynamic RAM
  • SRAM static RAM
  • FeRAM ferroelectric RAM
  • MRAM magnetic RAM
  • RRAM resistive RAM
  • PCM phase change memory
  • the controller 602 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 600 to cause the processor 600 to support various operations in accordance with examples as described herein.
  • the controller 602 may operate as a control unit of the processor 600, generating control signals that manage the operation of various components of the processor 600. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
  • the controller 602 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 604 and determine subsequent instruction (s) to be executed to cause the processor 600 to support various operations in accordance with examples as described herein.
  • the controller 602 may be configured to track memory address of instructions associated with the memory 604.
  • the controller 602 may be configured to decode instructions to determine the operation to be performed and the operands involved.
  • the controller 602 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 600 to cause the processor 600 to support various operations in accordance with examples as described herein.
  • the controller 602 may be configured to manage flow of data within the processor 600.
  • the controller 602 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 600.
  • ALUs arithmetic logic units
  • the memory 604 may include one or more caches (e.g., memory local to or included in the processor 600 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementations, the memory 604 may reside within or on a processor chipset (e.g., local to the processor 600) . In some other implementations, the memory 604 may reside external to the processor chipset (e.g., remote to the processor 600) .
  • caches e.g., memory local to or included in the processor 600 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc.
  • the memory 604 may reside within or on a processor chipset (e.g., local to the processor 600) . In some other implementations, the memory 604 may reside external to the processor chipset (e.g., remote to the processor 600) .
  • the memory 604 may store computer-readable, computer-executable code including instructions that, when executed by the processor 600, cause the processor 600 to perform various functions described herein.
  • the code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory.
  • the controller 602 and/or the processor 600 may be configured to execute computer-readable instructions stored in the memory 604 to cause the processor 600 to perform various functions.
  • the processor 600 and/or the controller 602 may be coupled with or to the memory 604, the processor 600, the controller 602, and the memory 604 may be configured to perform various functions described herein.
  • the processor 600 may include multiple processors and the memory 604 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
  • the one or more ALUs 606 may be configured to support various operations in accordance with examples as described herein.
  • the one or more ALUs 606 may reside within or on a processor chipset (e.g., the processor 600) .
  • the one or more ALUs 606 may reside external to the processor chipset (e.g., the processor 600) .
  • One or more ALUs 606 may perform one or more computations such as addition, subtraction, multiplication, and division on data.
  • one or more ALUs 606 may receive input operands and an operation code, which determines an operation to be executed.
  • One or more ALUs 606 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 606 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 606 to handle conditional operations, comparisons, and bitwise operations.
  • logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 606 to handle conditional operations, comparisons, and bitwise operations.
  • the processor 600 may support wireless communication in accordance with examples as disclosed herein.
  • the processor 600 may be configured to or operable to support a means for receiving information associated with a geographical area, wherein the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area; a means for receiving beam information that indicates one or more of a beam index, a beam width, a transmission power, a reception power, an antenna gain, an identifier associated with a non-terrestrial network entity, or a RS index; and a means for determining one or more of a transmission power of an uplink transmission, a repetition number of the uplink transmission, a reception power of a downlink reception, or a repetition number of the downlink reception based on the information associated with the geographical area and the beam information.
  • FIG. 7 illustrates an example of a NE 700 in accordance with aspects of the present disclosure.
  • the NE 700 may include a processor 702, a memory 704, a controller 706, and a transceiver 708.
  • the processor 702, the memory 704, the controller 706, or the transceiver 708, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. These components may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces.
  • the processor 702, the memory 704, the controller 706, or the transceiver 708, or various combinations or components thereof may be implemented in hardware (e.g., circuitry) .
  • the hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , or other programmable logic device, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • the processor 702 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof) .
  • the processor 702 may be configured to operate the memory 704.
  • the memory 704 may be integrated into the processor 702.
  • the processor 702 may be configured to execute computer-readable instructions stored in the memory 704 to cause the NE 700 to perform various functions of the present disclosure.
  • the memory 704 may include volatile or non-volatile memory.
  • the memory 704 may store computer-readable, computer-executable code including instructions when executed by the processor 702 cause the NE 700 to perform various functions described herein.
  • the code may be stored in a non-transitory computer-readable medium such the memory 704 or another type of memory.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
  • the processor 702 and the memory 704 coupled with the processor 702 may be configured to cause the NE 700 to perform one or more of the functions described herein (e.g., executing, by the processor 702, instructions stored in the memory 704) .
  • the processor 702 may support wireless communication at the NE 700 in accordance with examples as disclosed herein.
  • the NE 700 may be configured to support a means for transmitting information associated with a geographical area, wherein the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area; a means for transmitting beam information that indicates one or more of a beam index, a beam width, a transmission power, a reception power, an antenna gain, an identifier associated with a non-terrestrial network entity, or a RS index; and a means for determining one or more of a transmission power of a downlink transmission, a repetition number of a downlink transmission, a reception power of an uplink reception, or a repetition number of an uplink reception based on the information associated with the geographical area and the beam information
  • the controller 706 may manage input and output signals for the NE 700.
  • the controller 706 may also manage peripherals not integrated into the NE 700.
  • the controller 706 may utilize an operating system such as or other operating systems.
  • the controller 706 may be implemented as part of the processor 702.
  • the NE 700 may include at least one transceiver 708. In some other implementations, the NE 700 may have more than one transceiver 708.
  • the transceiver 708 may represent a wireless transceiver.
  • the transceiver 708 may include one or more receiver chains 710, one or more transmitter chains 712, or a combination thereof.
  • a receiver chain 710 may be configured to receive signals (e.g., control information, data, packets) over a wireless medium.
  • the receiver chain 710 may include one or more antennas for receive the signal over the air or wireless medium.
  • the receiver chain 710 may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal.
  • the receiver chain 710 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal.
  • the receiver chain 710 may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
  • the method may include receiving information associated with a geographical area, wherein the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area.
  • the operations of step 801 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 801 may be performed by a UE as described with reference to Figure 5.
  • the method may include determining one or more of a transmission power of an uplink transmission, a repetition number of the uplink transmission, a reception power of a downlink reception, or a repetition number of the downlink reception based on the information associated with the geographical area and the beam information.
  • the operations of step 805 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of step 805 may be performed by a UE as described with reference to Figure 5.
  • Figure 9 illustrates a flowchart of a method in accordance with aspects of the present disclosure.
  • the operations of the method may be implemented by a NE as described herein.
  • the NE may execute a set of instructions to control the function elements of the NE to perform the described functions.
  • the method may include transmitting information associated with a geographical area, wherein the information associated with the geographical area indicates a first set of one or more resources for an active duration associated with the geographical area and a second set of one or more resources for an inactive duration associated with the geographical area.
  • the operations of step 901 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of step 901 may be performed by a NE as described with reference to Figure 7.
  • the method may include determining one or more of a transmission power of a downlink transmission, a repetition number of a downlink transmission, a reception power of an uplink reception, or a repetition number of an uplink reception based on the information associated with the geographical area and the beam information.
  • the operations of step 905 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of step 905 may be performed by a NE as described with reference to Figure 7.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Divers aspects de la présente divulgation concernent un procédé et un appareil d'aide à l'adaptation de faisceau. Un procédé donné à titre d'exemple mis en œuvre par un UE peut consister à : recevoir des informations associées à une zone géographique, les informations associées à la zone géographique indiquant un premier ensemble d'une ou plusieurs ressources pour une durée active associée à la zone géographique et un second ensemble d'une ou plusieurs ressources pour une durée inactive associée à la zone géographique ; recevoir des informations de faisceau qui indiquent un indice de faisceau et/ou une largeur de faisceau et/ou une puissance de transmission et/ou une puissance de réception et/ou un gain d'antenne et/ou un identifiant associé à une entité de réseau non terrestre et/ou un indice RS ; et déterminer une puissance de transmission d'une transmission en liaison montante et/ou un nombre de répétitions de la transmission en liaison montante et/ou une puissance de réception d'une réception en liaison descendante et/ou un nombre de répétitions de la réception en liaison descendante sur la base des informations associées à la zone géographique et aux informations de faisceau.
PCT/CN2024/085210 2024-04-01 2024-04-01 Procédé et appareil d'aide à l'adaptation de faisceau Pending WO2025039558A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109155659A (zh) * 2016-05-11 2019-01-04 Idac控股公司 用于波束成形的上行链路传输的系统和方法
WO2019032696A1 (fr) * 2017-08-09 2019-02-14 Intel IP Corporation Augmentation de puissance d'un prach (canal physique d'accès aléatoire) et commutation dynamique de faisceau de transmissions de commande et de données
WO2023196223A1 (fr) * 2022-04-05 2023-10-12 Interdigital Patent Holdings, Inc. Accès à un réseau discontinu

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109155659A (zh) * 2016-05-11 2019-01-04 Idac控股公司 用于波束成形的上行链路传输的系统和方法
WO2019032696A1 (fr) * 2017-08-09 2019-02-14 Intel IP Corporation Augmentation de puissance d'un prach (canal physique d'accès aléatoire) et commutation dynamique de faisceau de transmissions de commande et de données
WO2023196223A1 (fr) * 2022-04-05 2023-10-12 Interdigital Patent Holdings, Inc. Accès à un réseau discontinu

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