WO2020164115A1 - Methods and apparatus of scell activation in new radio system - Google Patents

Methods and apparatus of scell activation in new radio system Download PDF

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Publication number
WO2020164115A1
WO2020164115A1 PCT/CN2019/075231 CN2019075231W WO2020164115A1 WO 2020164115 A1 WO2020164115 A1 WO 2020164115A1 CN 2019075231 W CN2019075231 W CN 2019075231W WO 2020164115 A1 WO2020164115 A1 WO 2020164115A1
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WIPO (PCT)
Prior art keywords
scell
reporting
network
activated
spatial relation
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Ceased
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PCT/CN2019/075231
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French (fr)
Inventor
Zhixun Tang
Hsuan-Li Lin
Tsang-Wei Yu
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MediaTek Singapore Pte Ltd
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MediaTek Singapore Pte Ltd
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Priority to PCT/CN2019/075231 priority Critical patent/WO2020164115A1/en
Priority to PCT/CN2020/075336 priority patent/WO2020164610A1/en
Priority to TW109104760A priority patent/TWI742533B/en
Priority to CN202080001318.5A priority patent/CN111837354B/en
Priority to US17/422,374 priority patent/US20220095127A1/en
Priority to EP20756316.4A priority patent/EP3915219B1/en
Publication of WO2020164115A1 publication Critical patent/WO2020164115A1/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04B17/328—Reference signal received power [RSRP]; Reference signal received quality [RSRQ]
    • 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
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/0696—Determining beam pairs
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0085—Timing of allocation when channel conditions change

Definitions

  • the present disclosure relates to wireless communications, and particularly relates to SCell activation processing in a New Radio system.
  • the 5G New Radio (NR) system is designed to support sub-6GHz and mmWave.
  • the NR system needs beam management process to set up the suitable Tx-Rx beam pair.
  • the system could be deployed with carrier aggregation (CA) or dual-connection (DC) techniques.
  • CA carrier aggregation
  • DC dual-connection
  • the network could activate one or multiple SCell (s) to increase the system throughput in CA or DC scenarios.
  • the procedure should be SCell identification and CSI reporting.
  • UE After UE receiving the SCell activation command by MAC-CE, UE should execute AGC retuning, cell search, fine synchronization, MIB reading for SCell identification. After SCell identification, the UE will calculate the CSI and reporting the CSI to the Base Station (BS) .
  • BS Base Station
  • UE need to handle beam management to acquire the CSI beam information before CSI reporting.
  • the UE also need to know the spatial relation for SRS before SRS transmission in SCell. Accordingly, the mechanism of SCell activation in NR mmWave system is important.
  • aspects of the disclosure provide a mechanism of SCell activation in a wireless communication network, especially in NR system.
  • the mechanism is used for an mmWave Scell activation scenario.
  • the processing could include Scell identification, L1-RSRP beam management, L1-RSRP beam reporting, CSI reporting process in UE side.
  • the processing also include SCell activation command trigger, beam selection and TCI and spatial relation indication in network side.
  • the UE could use beam management to find the N best beams and report the beam index to the network.
  • the network could indicate the TCI state and spatial relation for the reporting CSI and SRS based on the beam reporting by UE.
  • the method could include this SCell measurement reporting with beam index in deactivated state, and Scell identification, CSI reporting process in UE side.
  • the processing also include SCell activation command trigger, beam selection and TCI and spatial relation indication in network side.
  • the UE could use deactivated SCell’s measurement to report the beam index to the network.
  • the network could indicate the TCI state and spatial relation for the reporting CSI and SRS based on the deactivated SCell’s measurement reporting by UE.
  • the SCell to be activated is not the first SCell in mmWave, the SCell’s CSI reporting TCI state and SRS spatial relation could rely on exist PCell/PSCell or any activated serving cell.
  • the processing could include Scell identification, CSI reporting process in UE after SCell activation command triggered in network.
  • Fig. 1 shows a wireless communication system according to an embodiment of the disclosure
  • Fig. 2 shows an example of SCell activation procedure according to an embodiment of the disclosure
  • Fig. 3 shows an example of SCell activation procedure according to an embodiment of the disclosure
  • Fig. 4 shows an example of SCell activation procedure according to an embodiment of the disclosure
  • Fig. 5 shows an exemplary block diagram of a user equipment (UE) according to an embodiment of the disclosure.
  • Fig. 1 shows a wireless communication system 100 according to an embodiment of the disclosure.
  • the system 100 can include a user equipment (UE) 110 and a base station (BS) 120.
  • the system 100 can be a cellular network, and employ the New Radio (NR) technologies and the LTE technologies developed by the 3rd Generation Partnership Project (3GPP) for wireless communications between the UE 110 and the BS 120.
  • the UE 110 can be a mobile phone, a laptop computer, a device carried in a vehicle, and the like.
  • the BS 120 can be an implementation of a gNB specified in NR standards. Accordingly, the UE 110 can communicate with the base station 120 through a wireless communication channel according to communication protocols specified in respective communication standards. Please note that the invention is not limited by this.
  • the UE 110 and the base station 120 are configured to deploy carrier aggregation (CA) or dual-connection (DC) techniques to enhance UE’s throughput.
  • CA carrier aggregation
  • DC dual-connection
  • the MCG 130 includes Pcell 131 and SCell 1 132 to SCell N 133.
  • the system When the system deploy the DC, it could have Master Cell Group (MCG) 130 and Secondary Cell Group (SCG) 140.
  • MCG 130 includes Pcell 131 and SCell 1 132 to SCell N 133.
  • SCG 140 includes PScell 141 and SCell 1 142 to SCell N 143.
  • Fig. 2 shows an example of first mmWave SCell activation procedure 200.
  • UE receives SCell activation command from BS MAC-CE
  • step 210 UE will try to synchronize with the target SCell by AGC retuning, cell search, frequency/timing fine synchronization and MIB reading. After successful reading the MIB information, the SCell to be activated has been identified by UE.
  • step 220 UE will execute L1-RSRP beam management to search the fine Rx beam and/or Tx beam. It depends on BS’s signaling.
  • UE finds the order of the Tx-Rx beam pairs by L1-RSRP beam management UE will report the best N beam pairs to the BS by beam reporting.
  • BS will decide the suitable beam pair for CSI reporting later when BS receives the beam reporting. After that, the BS will also decide the Transmission Configuration Indicator (TCI) for SCell’s Channel State Information (CSI) reporting and spatial relation for SCell’s SRS transmission.
  • TCI Transmission Configuration Indicator
  • CSI Channel State Information
  • the BS signaling the TCI indication for CSI reporting, spatial relation for SRS transmission to UE.
  • the UE will process CSI reporting calculation based on the TCI indication signaling. After that, the UE will report the valid CSI reporting to BS.
  • the SCell activation process is finished after BS successfully receive the valid CSI reporting by SCell.
  • Fig. 3 shows an example of first mmWave SCell activation procedure 300.
  • the UE will be asked to measure the deactivated SCell (s) based on the SS/PBCH blocks.
  • the UE will report the measurement results with beam index for deactivated SCell (s) .
  • BS will decide the suitable beam pair for CSI reporting later when BS receives the measurement reporting with beam index.
  • the BS will also decide the TCI for SCell’s CSI reporting and spatial relation for SCell’s SRS transmission.
  • the BS signaling the TCI indication for CSI reporting, spatial relation for SRS transmission to UE.
  • UE When UE receives SCell activation command from BS MAC-CE, in step 330, UE will try to synchronize with the target SCell by AGC retuning, cell search, frequency/timing fine synchronization and MIB reading. After successful reading the MIB information, the SCell to be activated has been identified by UE. In step 340, the UE will process CSI reporting calculation based on the TCI indication signaling. After that, the UE will report the valid CSI reporting to BS. The SCell activation process is finished after BS successfully receive the valid CSI reporting by SCell.
  • Fig. 4 shows an example of mmWave SCell activation procedure 400 except the first SCell activation.
  • the UE could acquire the SCell to be activated TCI information by PCell or any activated serving cell in CA, or PSCell or any activated serving cell in DC scenario.
  • UE will try to synchronize with the target SCell by AGC retuning, cell search, frequency/timing fine synchronization and MIB reading. After successful reading the MIB information, the SCell to be activated has been identified by UE.
  • step 430 the UE will process CSI reporting calculation based on the TCI information and SRS transmission based on the spatial relation information from PCell /PSCell or any active serving cell. After that, the UE will report the valid CSI reporting to BS.
  • the SCell activation process is finished after BS successfully receiving the valid CSI reporting by SCell.
  • Fig. 5 shows an exemplary block diagram of a UE 500 according to an embodiment of the disclosure.
  • the UE 500 can be configured to implement various embodiments of the disclosure described herein.
  • the UE 500 can include a processor 510, a memory 520, and a radio frequency (RF) module 1130 that are coupled together as shown in Fig. 5.
  • RF radio frequency
  • the UE 500 can be a mobile phone, a tablet computer, a desktop computer, a vehicle carried device, and the like.
  • the processor 510 can be configured to perform various functions of the UE 120 described above with reference to Figs. 1-4.
  • the processor 510 can include signal processing circuitry to process received or to be transmitted data according to communication protocols specified in, for example, LTE and NR standards. Additionally, the processor 510 may execute program instructions, for example, stored in the memory 520, to perform functions related with different communication protocols.
  • the processor 510 can be implemented with suitable hardware, software, or a combination thereof.
  • the processor 510 can be implemented with application specific integrated circuits (ASIC) , field programmable gate arrays (FPGA) , and the like, that includes circuitry.
  • the circuitry can be configured to perform various functions of the processor 510.
  • the memory 520 can store program instructions that, when executed by the processor 510, cause the processor 510 to perform various functions as described herein.
  • the memory 520 can include a read only memory (ROM) , a random access memory (RAM) , a flash memory, a solid state memory, a hard disk drive, and the like.
  • the RF module 530 can be configured to receive a digital signal from the processor 510 and accordingly transmit a signal to a base station in a wireless communication network via an antenna 540.
  • the RF module 530 can be configured to receive a wireless signal from a base station and accordingly generate a digital signal which is provided to the processor 510.
  • the RF module 530 can include digital to analog/analog to digital converters (DAC/ADC) , frequency down/up converters, filters, and amplifiers for reception and transmission operations.
  • DAC/ADC digital to analog/analog to digital converters
  • the RF module 530 can include converter circuits, filter circuits, amplification circuits, and the like, for processing signals on different carriers or bandwidth parts.
  • the UE 500 can optionally include other components, such as input and output devices, additional CPU or signal processing circuitry, and the like. Accordingly, the UE 500 may be capable of performing other additional functions, such as executing application programs, and processing alternative communication protocols.
  • the processes and functions described herein can be implemented as a computer program which, when executed by one or more processors, can cause the one or more processors to perform the respective processes and functions.
  • the computer program may be stored or distributed on a suitable medium, such as an optical storage medium or a solid-state medium supplied together with, or as part of, other hardware.
  • the computer program may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems.
  • the computer program can be obtained and loaded into an apparatus, including obtaining the computer program through physical medium or distributed system, including, for example, from a server connected to the Internet.
  • the computer program may be accessible from a computer-readable medium providing program instructions for use by or in connection with a computer or any instruction execution system.
  • a computer readable medium may include any apparatus that stores, communicates, propagates, or transports the computer program for use by or in connection with an instruction execution system, apparatus, or device.
  • the computer-readable medium can be magnetic, optical, electronic, electromagnetic, infrared, or semiconductor system (or apparatus or device) or a propagation medium.
  • the computer-readable medium may include a computer-readable non-transitory storage medium such as a semiconductor or solid state memory, magnetic tape, a removable computer diskette, a random access memory (RAM) , a read-only memory (ROM) , a magnetic disk and an optical disk, and the like.
  • the computer-readable non-transitory storage medium can include all types of computer readable medium, including magnetic storage medium, optical storage medium, flash medium and solid state storage medium.

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Abstract

This invention proposes a mechanism of SCell activation in a wireless communication network. The mechanism is used for an mmWave Scell activation scenario. When the SCell to be activated is the first SCell in mmWave, the processing could include Scell identification, L1-RSRP beam management, L1-RSRP beam reporting, CSI reporting process in UE side. The processing also include SCell activation command trigger, beam selection and TCI and spatial relation indication in network side. The UE could use beam management to find the N best beams and report the beam index to the network. The network could indicate the TCI state and spatial relation for the reporting CSI and SRS based on the beam reporting by UE. Alternatively, the method could include this SCell measurement reporting with beam index in deactivated state, and Scell identification, CSI reporting process in UE side. The processing also include SCell activation command trigger, beam selection and TCI and spatial relation indication in network side. The UE could use deactivated SCell's measurement to report the beam index to the network. The network could indicate the TCI state and spatial relation for the reporting CSI and SRS based on the deactivated SCell's measurement reporting by UE. When the SCell to be activated is not the first SCell in mmWave, the SCell's CSI reporting TCI state and SRS spatial relation could rely on exist PCell/PSCell or any activated serving cell. The processing could include Scell identification, CSI reporting process in UE after SCell activation command triggered in network.

Description

METHODS AND APPARATUS OF SCELL ACTIVATION IN NEW RADIO SYSTEM TECHNICAL FIELD
The present disclosure relates to wireless communications, and particularly relates to SCell activation processing in a New Radio system.
BACKGROUND
The background description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent the work is described in this background section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure.
The 5G New Radio (NR) system is designed to support sub-6GHz and mmWave. In mmWave, the NR system needs beam management process to set up the suitable Tx-Rx beam pair. To support higher throughput, the system could be deployed with carrier aggregation (CA) or dual-connection (DC) techniques. The network could activate one or multiple SCell (s) to increase the system throughput in CA or DC scenarios.
In LTE and NR sub-6GHz SCell activation, the procedure should be SCell identification and CSI reporting. After UE receiving the SCell activation command by MAC-CE, UE should execute AGC retuning, cell search, fine synchronization, MIB reading for SCell identification. After SCell identification, the UE will calculate the CSI and reporting the CSI to the Base Station (BS) . Nevertheless, in NR mmWave, UE need to handle beam management to acquire the CSI beam information before CSI reporting. At the same time, the UE also need to know the spatial relation for SRS before SRS transmission in SCell. Accordingly, the mechanism of SCell activation in NR mmWave system is important.
SUMMARY
Aspects of the disclosure provide a mechanism of SCell activation in a wireless communication network, especially in NR system. The mechanism is used for an mmWave Scell activation scenario. When the SCell to be activated is the first SCell in mmWave, the processing could include Scell identification, L1-RSRP beam management, L1-RSRP beam reporting, CSI reporting process in UE side. The processing also include SCell activation command trigger, beam selection and TCI and spatial relation indication in network side. The UE could use beam management to find the N best beams and report the beam index to the network. The network could indicate the TCI state and spatial relation for the reporting CSI and SRS based on the beam reporting by UE. Alternatively, the method could include this SCell measurement reporting with beam index in deactivated state, and Scell identification, CSI reporting process in UE side. The processing also include SCell activation command trigger, beam selection and TCI and spatial relation indication in network side. The UE could use deactivated SCell’s measurement to report the beam index to the network. The network could indicate the TCI state and spatial relation  for the reporting CSI and SRS based on the deactivated SCell’s measurement reporting by UE. When the SCell to be activated is not the first SCell in mmWave, the SCell’s CSI reporting TCI state and SRS spatial relation could rely on exist PCell/PSCell or any activated serving cell. The processing could include Scell identification, CSI reporting process in UE after SCell activation command triggered in network.
BRIEF DESCRIPTION OF THE DRAWINGS
Various embodiments of this disclosure that are proposed as examples will be described in detail with reference to the following figures, wherein like numerals reference like elements, and wherein:
Fig. 1 shows a wireless communication system according to an embodiment of the disclosure;
Fig. 2 shows an example of SCell activation procedure according to an embodiment of the disclosure;
Fig. 3 shows an example of SCell activation procedure according to an embodiment of the disclosure;
Fig. 4 shows an example of SCell activation procedure according to an embodiment of the disclosure;
Fig. 5 shows an exemplary block diagram of a user equipment (UE) according to an embodiment of the disclosure.
DETAILED DESCRIPTION OF EMBODIMENTS
Fig. 1 shows a wireless communication system 100 according to an embodiment of the disclosure. The system 100 can include a user equipment (UE) 110 and a base station (BS) 120. The system 100 can be a cellular network, and employ the New Radio (NR) technologies and the LTE technologies developed by the 3rd Generation Partnership Project (3GPP) for wireless communications between the UE 110 and the BS 120. The UE 110 can be a mobile phone, a laptop computer, a device carried in a vehicle, and the like. The BS 120 can be an implementation of a gNB specified in NR standards. Accordingly, the UE 110 can communicate with the base station 120 through a wireless communication channel according to communication protocols specified in respective communication standards. Please note that the invention is not limited by this.
In one example, the UE 110 and the base station 120 are configured to deploy carrier aggregation (CA) or dual-connection (DC) techniques to enhance UE’s throughput.
When the system deploy the CA, it could have Master Cell Group (MCG) 130. The MCG 130 includes Pcell 131 and SCell 1 132 to SCell N 133.
When the system deploy the DC, it could have Master Cell Group (MCG) 130 and Secondary Cell Group (SCG) 140. The MCG 130 includes Pcell 131 and SCell 1 132 to SCell N 133. The SCG 140 includes PScell 141 and SCell 1 142 to SCell N 143.
Fig. 2 shows an example of first mmWave SCell activation procedure 200. When UE receives SCell activation command from BS MAC-CE, in step 210, UE will try to synchronize with the target SCell by AGC retuning, cell search, frequency/timing fine synchronization and MIB reading. After successful reading the MIB information, the SCell to be activated has been identified by UE. In step 220, UE will execute L1-RSRP beam management to search the fine Rx beam and/or Tx beam. It depends on BS’s signaling. When UE finds the order of the Tx-Rx beam pairs by L1-RSRP beam management, UE will report the best N beam pairs to the BS by beam  reporting. In step 230, BS will decide the suitable beam pair for CSI reporting later when BS receives the beam reporting. After that, the BS will also decide the Transmission Configuration Indicator (TCI) for SCell’s Channel State Information (CSI) reporting and spatial relation for SCell’s SRS transmission. The BS signaling the TCI indication for CSI reporting, spatial relation for SRS transmission to UE. In step 240, the UE will process CSI reporting calculation based on the TCI indication signaling. After that, the UE will report the valid CSI reporting to BS.The SCell activation process is finished after BS successfully receive the valid CSI reporting by SCell.
Fig. 3 shows an example of first mmWave SCell activation procedure 300. In step 310, The UE will be asked to measure the deactivated SCell (s) based on the SS/PBCH blocks. The UE will report the measurement results with beam index for deactivated SCell (s) . In step 320, BS will decide the suitable beam pair for CSI reporting later when BS receives the measurement reporting with beam index. After that, the BS will also decide the TCI for SCell’s CSI reporting and spatial relation for SCell’s SRS transmission. The BS signaling the TCI indication for CSI reporting, spatial relation for SRS transmission to UE. When UE receives SCell activation command from BS MAC-CE, in step 330, UE will try to synchronize with the target SCell by AGC retuning, cell search, frequency/timing fine synchronization and MIB reading. After successful reading the MIB information, the SCell to be activated has been identified by UE. In step 340, the UE will process CSI reporting calculation based on the TCI indication signaling. After that, the UE will report the valid CSI reporting to BS. The SCell activation process is finished after BS successfully receive the valid CSI reporting by SCell.
Fig. 4 shows an example of mmWave SCell activation procedure 400 except the first SCell activation. When UE receives SCell activation command from BS MAC-CE, in step 410, the UE could acquire the SCell to be activated TCI information by PCell or any activated serving cell in CA, or PSCell or any activated serving cell in DC scenario. In step 420, UE will try to synchronize with the target SCell by AGC retuning, cell search, frequency/timing fine synchronization and MIB reading. After successful reading the MIB information, the SCell to be activated has been identified by UE. In step 430, the UE will process CSI reporting calculation based on the TCI information and SRS transmission based on the spatial relation information from PCell /PSCell or any active serving cell. After that, the UE will report the valid CSI reporting to BS. The SCell activation process is finished after BS successfully receiving the valid CSI reporting by SCell.
Fig. 5 shows an exemplary block diagram of a UE 500 according to an embodiment of the disclosure. The UE 500 can be configured to implement various embodiments of the disclosure described herein. The UE 500 can include a processor 510, a memory 520, and a radio frequency (RF) module 1130 that are coupled together as shown in Fig. 5. In different examples, the UE 500 can be a mobile phone, a tablet computer, a desktop computer, a vehicle carried device, and the like.
The processor 510 can be configured to perform various functions of the UE 120 described above with reference to Figs. 1-4. The processor 510 can include signal processing circuitry to process received or to be transmitted data according to communication protocols specified in, for example, LTE and NR standards. Additionally, the processor 510 may execute program instructions, for example, stored in the memory 520, to perform functions related with different communication protocols. The processor 510 can be implemented with suitable hardware, software, or a combination thereof. For example, the processor 510 can be implemented with  application specific integrated circuits (ASIC) , field programmable gate arrays (FPGA) , and the like, that includes circuitry. The circuitry can be configured to perform various functions of the processor 510.
In one example, the memory 520 can store program instructions that, when executed by the processor 510, cause the processor 510 to perform various functions as described herein. The memory 520 can include a read only memory (ROM) , a random access memory (RAM) , a flash memory, a solid state memory, a hard disk drive, and the like.
The RF module 530 can be configured to receive a digital signal from the processor 510 and accordingly transmit a signal to a base station in a wireless communication network via an antenna 540. In addition, the RF module 530 can be configured to receive a wireless signal from a base station and accordingly generate a digital signal which is provided to the processor 510. The RF module 530 can include digital to analog/analog to digital converters (DAC/ADC) , frequency down/up converters, filters, and amplifiers for reception and transmission operations. For example, the RF module 530 can include converter circuits, filter circuits, amplification circuits, and the like, for processing signals on different carriers or bandwidth parts.
The UE 500 can optionally include other components, such as input and output devices, additional CPU or signal processing circuitry, and the like. Accordingly, the UE 500 may be capable of performing other additional functions, such as executing application programs, and processing alternative communication protocols.
The processes and functions described herein can be implemented as a computer program which, when executed by one or more processors, can cause the one or more processors to perform the respective processes and functions. The computer program may be stored or distributed on a suitable medium, such as an optical storage medium or a solid-state medium supplied together with, or as part of, other hardware. The computer program may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems. For example, the computer program can be obtained and loaded into an apparatus, including obtaining the computer program through physical medium or distributed system, including, for example, from a server connected to the Internet.
The computer program may be accessible from a computer-readable medium providing program instructions for use by or in connection with a computer or any instruction execution system. A computer readable medium may include any apparatus that stores, communicates, propagates, or transports the computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable medium can be magnetic, optical, electronic, electromagnetic, infrared, or semiconductor system (or apparatus or device) or a propagation medium. The computer-readable medium may include a computer-readable non-transitory storage medium such as a semiconductor or solid state memory, magnetic tape, a removable computer diskette, a random access memory (RAM) , a read-only memory (ROM) , a magnetic disk and an optical disk, and the like. The computer-readable non-transitory storage medium can include all types of computer readable medium, including magnetic storage medium, optical storage medium, flash medium and solid state storage medium.
While aspects of the present disclosure have been described in conjunction with the specific embodiments thereof that are proposed as examples, alternatives, modifications, and variations to the examples may be made. Accordingly, embodiments as set forth herein are intended to be illustrative and not limiting. There are  changes that may be made without departing from the scope of the claims set forth below.

Claims (10)

  1. A method, comprising:
    SCell identification process, L1-RSRP beam management and reporting, and CSI reporting in UE side; and
    beam selection and TCI and spatial relation indication signaling in BS side.
  2. The method of claim 1, further comprising:
    the SCell to be activated is the first mmWave cell for UE.
  3. The method of claim 1, further comprising:
    the beam management in SCell to be activated should measure and acquire the best M (M>=1) beam pair between Tx and Rx.
  4. The method of claim 1, further comprising:
    the beam reporting in SCell to be activated should report the best N (N>=1, N<=M) beam pair to BS.
  5. A method, comprising:
    deactivated SCell measurement and reporting, SCell identification process, and CSI reporting in UE side; and
    SSB-based beam selection and TCI and spatial relation indication signaling in BS side.
  6. The method of claim 5, further comprising:
    The SCell to be activated is the first mmWave cell for UE.
  7. The method of claim 5, further comprising:
    the deactivated SCell measurement reporting should include beam index.
  8. A method, comprising:
    acquire SCell TCI information by PCell and PSCell, SCell identification process, and CSI reporting in UE side.
  9. The method of claim 8, further comprising:
    the SCell to be activated is not the first mmWave cell for UE.
  10. The method of claim 8, further comprising:
    the SCell to be activated TCI and spatial relation indication could be acquired by PCell/PSCell or other activated serving cells.
PCT/CN2019/075231 2019-02-15 2019-02-15 Methods and apparatus of scell activation in new radio system Ceased WO2020164115A1 (en)

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TW109104760A TWI742533B (en) 2019-02-15 2020-02-14 Electronic devices and methods for cell ctivation of secondary cell
CN202080001318.5A CN111837354B (en) 2019-02-15 2020-02-14 Cell activation method of secondary cell and electronic equipment thereof
US17/422,374 US20220095127A1 (en) 2019-02-15 2020-02-14 Electronic devices and methods for secondary cell activation
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021046106A1 (en) * 2019-09-04 2021-03-11 Qualcomm Incorporated Triggering reference signals in wireless networks
CN113438002A (en) * 2021-06-07 2021-09-24 北京邮电大学 LSTM-based analog beam switching method, device, equipment and medium
WO2022082676A1 (en) * 2020-10-22 2022-04-28 Apple Inc. Secondary cell (scell) activation in a new radio (nr) system
WO2022147659A1 (en) * 2021-01-05 2022-07-14 捷开通讯(深圳)有限公司 Method for indicating uplink and downlink beams for carrier aggregation and communication device
WO2022151207A1 (en) * 2021-01-14 2022-07-21 Apple Inc. Method for enhanced direct secondary cell activation
US20240357522A1 (en) * 2020-09-04 2024-10-24 Qualcomm Incorporated Techniques for switching receive beams for cell measurement in wireless communications

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113661778A (en) 2019-03-29 2021-11-16 株式会社Ntt都科摩 User device and communication method
EP4340289A3 (en) * 2019-05-10 2024-05-08 Ntt Docomo, Inc. User device and communication method
CN112055374B (en) * 2019-06-06 2022-05-17 华为技术有限公司 Method and apparatus for activating secondary cell
US11089647B1 (en) * 2020-04-14 2021-08-10 Sprint Spectrum L.P. Use of UE power class and quantity of access-node receive antennas as basis to control configuration of dual-connectivity service
CN114006682B (en) * 2020-07-27 2023-04-07 大唐移动通信设备有限公司 Beam indication method, device, terminal and network side equipment
US20230422165A1 (en) * 2020-10-02 2023-12-28 Apple Inc. SCell Activation Enhancement with Assistance Reference Signal
CN116548052B (en) * 2020-10-22 2026-04-21 联发科技股份有限公司 Method and apparatus for accelerating direct secondary cell activation
CN116601903B (en) * 2020-10-30 2026-01-27 华为技术有限公司 Apparatus and method for Secondary Cell (SCELL) enhancements in wireless communications
WO2022120710A1 (en) * 2020-12-10 2022-06-16 华为技术有限公司 Communication method, apparatus and system
EP4260608A2 (en) * 2020-12-11 2023-10-18 Telefonaktiebolaget LM Ericsson (publ) Method supporting inter-cell mobility between different frequencies
US20230422309A1 (en) * 2020-12-30 2023-12-28 Telefonaktiebolaget Lm Ericsson (Publ) Secondary cell group (scg) activation and deactivation at secondary node (sn) addition
CN116746198A (en) * 2021-01-13 2023-09-12 华为技术有限公司 A communication method and device
US20220225188A1 (en) * 2021-01-14 2022-07-14 Qualcomm Incorporated Techniques for non-serving cell reporting in wireless communications systems
CN114765799A (en) * 2021-01-15 2022-07-19 维沃移动通信有限公司 Beam measurement reporting method, device, terminal and network side equipment
CN115189825A (en) * 2021-04-02 2022-10-14 索尼集团公司 Electronic device, communication method and storage medium
WO2023044768A1 (en) * 2021-09-24 2023-03-30 Apple Inc. Secondary cell activation based on cross-component carrier reference signals
US20230096588A1 (en) * 2021-09-30 2023-03-30 Mediatek Inc Apparatus and method for unknown pucch scell activation
US20250337507A1 (en) * 2022-06-20 2025-10-30 Lg Electronics Inc. Scell activation
US12563431B2 (en) * 2022-07-14 2026-02-24 Qualcomm Incorporated Inter-cell mobility
US12549298B2 (en) * 2023-02-06 2026-02-10 Qualcomm Incorporated Waveform for synchronization and beam management of a secondary cell
CN119382841B (en) * 2023-07-26 2026-04-10 中国电信股份有限公司技术创新中心 Measurement methods, terminals, communication systems, and storage media

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9888474B2 (en) * 2010-11-05 2018-02-06 Samsung Electronics Co., Ltd. Method and device for activating secondary carrier in wireless communication system for using carrier aggregation technique
CN107889256A (en) * 2016-09-30 2018-04-06 北京信威通信技术股份有限公司 A kind of method and device of dispatching uplink resource
US20180131431A1 (en) * 2015-03-09 2018-05-10 Esmael Hejazi Dinan Multiple Uplink Control Channel in a Wireless Network
WO2019029330A1 (en) * 2017-08-11 2019-02-14 华为技术有限公司 Secondary cell activation method, access network device, communication apparatus and system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2661938T3 (en) * 2011-01-07 2022-04-25 Beijing Xiaomi Mobile Software Co., Ltd. Reporting a channel quality indicator
CN102780998B (en) * 2011-05-12 2016-01-06 华为技术有限公司 The maintaining method of cell synchronous and equipment
CN102905387B (en) * 2011-07-25 2019-01-25 中兴通讯股份有限公司 Random access method and user equipment
KR101816673B1 (en) * 2014-01-31 2018-01-09 후아웨이 테크놀러지 컴퍼니 리미티드 Device, network, and method for network adaptation and utilizing a downlink discovery reference signal
US9973959B2 (en) * 2014-04-16 2018-05-15 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for controlling cell aggregation
CN107637001B (en) * 2015-04-15 2019-07-02 欧芬诺有限责任公司 Activation/deactivation of secondary cells in carrier aggregation
JP6542465B2 (en) * 2015-08-17 2019-07-10 テレフオンアクチーボラゲット エルエム エリクソン（パブル） Cell activation
CN110268744A (en) * 2017-02-13 2019-09-20 瑞典爱立信有限公司 Method for controlling UE synchronization and cell identity in NR
US10791512B2 (en) * 2017-07-14 2020-09-29 Qualcomm Incorporated User equipment power consumption and secondary cell activation latency reductions in a wireless communication system
CN109302720B (en) * 2017-07-25 2021-03-23 华为技术有限公司 A method and device for selecting a beam
JP6694032B2 (en) * 2017-09-20 2020-05-13 華碩電腦股▲ふん▼有限公司 Method and apparatus for beam determination in a wireless communication system
CN112840587B (en) * 2018-08-10 2024-07-05 高通股份有限公司 Quasi-co-location indication of non-zero power channel state information reference signal port group
US10887884B2 (en) * 2018-09-21 2021-01-05 Samsung Electronics Co., Ltd. Method and apparatus for signaling in support of uplink multi-beam operation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9888474B2 (en) * 2010-11-05 2018-02-06 Samsung Electronics Co., Ltd. Method and device for activating secondary carrier in wireless communication system for using carrier aggregation technique
US20180131431A1 (en) * 2015-03-09 2018-05-10 Esmael Hejazi Dinan Multiple Uplink Control Channel in a Wireless Network
CN107889256A (en) * 2016-09-30 2018-04-06 北京信威通信技术股份有限公司 A kind of method and device of dispatching uplink resource
WO2019029330A1 (en) * 2017-08-11 2019-02-14 华为技术有限公司 Secondary cell activation method, access network device, communication apparatus and system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021046106A1 (en) * 2019-09-04 2021-03-11 Qualcomm Incorporated Triggering reference signals in wireless networks
US11570796B2 (en) 2019-09-04 2023-01-31 Qualcomm Incorporated Triggering reference signals in wireless networks
US20240357522A1 (en) * 2020-09-04 2024-10-24 Qualcomm Incorporated Techniques for switching receive beams for cell measurement in wireless communications
WO2022082676A1 (en) * 2020-10-22 2022-04-28 Apple Inc. Secondary cell (scell) activation in a new radio (nr) system
US11937286B2 (en) 2020-10-22 2024-03-19 Apple Inc. Secondary cell (SCell) activation in a new radio (NR) system
WO2022147659A1 (en) * 2021-01-05 2022-07-14 捷开通讯(深圳)有限公司 Method for indicating uplink and downlink beams for carrier aggregation and communication device
WO2022151207A1 (en) * 2021-01-14 2022-07-21 Apple Inc. Method for enhanced direct secondary cell activation
US12081493B2 (en) 2021-01-14 2024-09-03 Apple Inc. Method for enhanced direct secondary cell activation
CN113438002A (en) * 2021-06-07 2021-09-24 北京邮电大学 LSTM-based analog beam switching method, device, equipment and medium
CN113438002B (en) * 2021-06-07 2022-07-12 北京邮电大学 LSTM-based analog beam switching method, device, equipment and medium

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