[go: up one dir, main page]

WO2025148330A1 - Canal de diffusion physique secondaire - Google Patents

Canal de diffusion physique secondaire

Info

Publication number
WO2025148330A1
WO2025148330A1 PCT/CN2024/114078 CN2024114078W WO2025148330A1 WO 2025148330 A1 WO2025148330 A1 WO 2025148330A1 CN 2024114078 W CN2024114078 W CN 2024114078W WO 2025148330 A1 WO2025148330 A1 WO 2025148330A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
indication
ssb
information
spbch
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/CN2024/114078
Other languages
English (en)
Inventor
Xingguang WEI
Junfeng Zhang
Zhaohua Lu
Xing Liu
Lun Li
Yong Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to PCT/CN2024/114078 priority Critical patent/WO2025148330A1/fr
Publication of WO2025148330A1 publication Critical patent/WO2025148330A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H04L5/0083—Timing of allocation at predetermined intervals symbol-by-symbol
    • 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
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex

Definitions

  • This disclosure generally relates to handling transmissions in a wireless cellular access network, and is specifically directed to mechanisms for providing a secondary physical broadcast channel.
  • FIG. 3 illustrates the SSB design in the existing 5G system. As shown, the SSB occupies four OFDM symbols, where the Primary Synchronization Signal (PSS) is in the first OFDM symbol (OFDM symbol number 0) , the Secondary Synchronization Signal (SSS) is in the third OFDM symbol (OFDM symbol number 2) , and the PBCH is in the second, third, and fourth OFDM symbols (OFDM symbol numbers 1, 2, and 3) .
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the PSS and SSS occupy the central 127 subcarriers.
  • the PBCH in the second and fourth OFDM symbol each occupy 240 subcarriers, i.e., 20 Resource Blocks (RBs) , respectively.
  • the PBCH occupies four RBs above the SSS with a gap in between and four RBs below the SSS with another gap in between.
  • This disclosure generally relates to handling transmissions in a wireless cellular access network, and is specifically directed to mechanisms for providing a secondary physical broadcast channel.
  • the legacy SSB design can be maintained, while a Secondary Physical Broadcast Channel (SPBCH) can be transmitted to the UE.
  • SPBCH Secondary Physical Broadcast Channel
  • a legacy UE only needs to receive the PBCH, while UEs supporting the new features under 6G can receive the SPBCH in addition to the PBCH.
  • a method performed by a wireless access network node includes transmitting, to a wireless terminal device (e.g., UE) , First Physical Broadcast Channel (FPBCH) , Secondary Physical Broadcast Channel (SPBCH) , a Primary Synchronization Signal (PSS) , and a Secondary Synchronization Signal (SSS) , wherein the FPBCH carries first synchronization information, and the SPBCH carries second synchronization information.
  • a wireless access network node e.g., base station
  • a wireless terminal device e.g., UE
  • FPBCH First Physical Broadcast Channel
  • SPBCH Secondary Physical Broadcast Channel
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • a method performed by the wireless terminal device includes receiving, from the WANN, FPBCH, SPBCH, a PSS, and a SSS, wherein the FPBCH carries first synchronization information, and the SPBCH carries second synchronization information.
  • the methods may include the WANN transmitting, and the wireless terminal device receiving, the FPBCH, SPBCH, PSS, and SSS in consecutive symbols, and the SPBCH and the PSS in a first symbol, the FPBCH in a second, third, and fourth symbol, and the SSS in the third symbol.
  • the SPBCH in the first symbol, is mapped to M 1 subcarriers above the PSS with a K 1 subcarriers first gap in between the SPBCH and the PSS, and the SPBCH is mapped to M 2 subcarriers below the PSS with a K 2 subcarriers second gap in between the SPBCH and the PSS.
  • the methods include the WANN transmitting, and the wireless terminal device receiving, the second synchronization information using a sequence that is mapped to resource blocks (RBs) of the SPBCH, wherein each sequence is mapped to 1, 2, 4, or 8 RBs, and wherein the second synchronization information carries between 4 and 16 bits information.
  • RBs resource blocks
  • the second synchronization information carried by the SPBCH includes at least one of the following: a periodicity of the SSB or a periodicity of half frames with SSB; frequency division multiplexing (FDM) information of SSB; SSB mode information; configuration information of two sets of SSB; super cell information; resource information; carrier information; duplex information; reduced capabilities (RedCap) information; cyclic prefix (CP) information; cell information; energy information; Transmission Reception Point (TRP) information; AI information; RACH information; mobility information; Wake Up Signal (WUS) information; and/or Reconfigurable Intelligence Surface (RIS) information.
  • FDM frequency division multiplexing
  • SSB mode information configuration information of two sets of SSB
  • super cell information resource information; carrier information; duplex information; reduced capabilities (RedCap) information
  • CP cyclic prefix
  • TRP Transmission Reception Point
  • AI Radio Access Response
  • RACH mobility information
  • WUS Wake Up Signal
  • RIS Reconfigurable Intelligence Surface
  • the FDM information comprises at least one of: an indication of whether the SSB is frequency division multiplexed (FDMed) ; a number of FDMed SSBs in one time instance; and/or frequency domain indexes of the SSBs.
  • FDMed frequency division multiplexed
  • a scrambling sequence for the SPBCH is determined based on the FPBCH or the first synchronization information.
  • an apparatus for wireless communication such as a network device
  • the network device may include one or more processors and one or more memories, wherein the one or more processors are configured to read computer code from the one or more memories to implement any one of the methods above.
  • the apparatus for wireless communication may be the wireless access network node (e.g., base station) or the wireless terminal device (e.g., UE) .
  • a computer program product may include a non-transitory computer-readable medium with computer code stored thereupon, the computer code, when executed by one or more processors, causing the one or more processors to implement any one of the methods above.
  • FIG. 1 shows a wireless access network with an exemplary uplink, downlink, and control channel configuration.
  • FIG. 2 shows various example processing components of the wireless terminal device and the wireless access network node of FIG. 1.
  • FIG. 3 shows an example SSB design in the existing 5G system.
  • FIG. 5 shows a particular example of the design of the BSS in accordance with various embodiments.
  • implementations and/or embodiments described in this disclosure can be used to facilitate over-the-air radio resource allocation, configuration, and signaling in wireless access networks as well as operational configuration of a UE and/or a base station within the wireless access networks.
  • the term “exemplary” is used to mean “an example of” and unless otherwise stated, does not imply an ideal or preferred example, implementation, or embodiment.
  • Section headers are used in the present disclosure to facilitate understanding of the disclosed implementations and are not intended to limit the disclosed technology in the sections only to the corresponding section.
  • the disclosed implementations may be further embodied in a variety of different forms and, therefore, the scope of this disclosure or claimed subject matter is intended to be construed as not being limited to any of the embodiments set forth below.
  • the various implementations may be embodied as methods, devices, components, systems, or non-transitory computer readable media. Accordingly, embodiments of this disclosure may, for example, take the form of hardware, software, firmware or any combination thereof.
  • the memory 212 may also store therein, and the processor 210 may also be configured to execute one or more models (e.g., Artificial Intelligence /Machine Learning (AI/ML) models) to perform one or more functionalities (e.g., AI/ML functionalities) .
  • the memory 212 may also be utilized and allocated for buffering UL and DL transmissions in each band/carrier.
  • the memory 212 may include multiple memory modules assigned to different functions (such as program memory, base band memory, and/or RF memory, to name a few) .
  • the WANN 102 may include transceiver circuitry 214 coupled to one or more antennas 216, which may include an antenna tower 218 in various forms, to effectuate wireless communications with the UE 104.
  • the base station 102 can transmit the SPBCH in the Resource Blocks (RBs) above the PSS and the RBs below the PSS.
  • the legacy PBCH is referred as First PBCH (FPBCH) in embodiments in this document.
  • each sequence In case each sequence is mapped to 2 RB, each sequence carriers 1, 2, 3 or 4 bits of second synchronization information. Because there are up to 8 RBs for the second synchronization information transmission via SPBCH, the second synchronization information may carry 4 -16 bits of information. For example, the 1 -4 bits of information can be differentiated via sequence cyclic shift.
  • each sequence In case that each sequence is mapped to 4 RB, each sequence carriers 2 -8 bits of second synchronization information. Because there are up to 8 RBs for the second synchronization information transmission via SPBCH, the second synchronization information may carry 4 -16 bits of information. For example, the 2 -8 bits of information can be differentiated via sequence cyclic shift.
  • M i, k represents the basis sequences, e.g., as defined in Table 5.3.3.3-1 of 3GPP TS38.212.
  • c k represents the second synchronization information or processed second synchronization information.
  • the processed second synchronization information may refer the second synchronization information after CRC attachment and/or interleaving.
  • the second synchronization information may carry 3 -11 bits of information. If it is less than 3 bits or larger than 11 bits, other encoding methods may be better, e.g., repetition or Polar coding.
  • the base station 102 can modulate the encoded bits and then map the modulated symbols into the RBs of the SPBCH.
  • a method performed by a wireless access network node (WANN) 102 includes transmitting, to a wireless terminal device 104 (e.g., UE 104) , First Physical Broadcast Channel (FPBCH) , Secondary Physical Broadcast Channel (SPBCH) , a Primary Synchronization Signal (PSS) , and a Secondary Synchronization Signal (SSS) , wherein the FPBCH carries first synchronization information, and the SPBCH carries second synchronization information.
  • WANN wireless access network node
  • the methods include the WANN 102 transmitting, and the wireless terminal device 104 receiving, the second synchronization information using a sequence that is mapped to resource blocks (RBs) of the SPBCH, wherein each sequence is mapped to 1, 2, 4, or 8 RBs, and wherein the second synchronization information carries between 4 and 16 bits information.
  • RBs resource blocks
  • the second synchronization information comprises frequency division multiplexing (FDM) information of SSB.
  • FDM frequency division multiplexing
  • FDM information comprises an indication that indicates whether or not the SSB is frequency division multiplexed (FDMed) .
  • FDM information comprises a value indicating the number of FDMed SSBs in one time instance.
  • FDM information comprises frequency domain indexes of the SSBs.
  • FDM information comprises an index corresponding to one or more global synchronization channel numbers (GSCNs) .
  • the base station 102 may transmit the FDMed SSBs at one or more frequency positions corresponding to the one or more GSCNs.
  • the UE 104 receives the FDMed SSBs at one or more frequency positions corresponding to the one or more GSCNs.
  • FDM information comprises an index corresponding to one or more absolute radio frequency channel numbers (ARFCNs) and at least one global synchronization channel number (GSCN) .
  • the base station 102 may transmit the FDMed SSBs at one or more frequency positions corresponding to the one or more ARFCNs and the at least one GSCN.
  • the UE 104 receives the FDMed SSBs at one or more frequency positions corresponding to the one or more ARFCNs and the at least one GSCN.
  • FDM information comprises at least one of: a muting pattern in a frequency domain for the SSBs, wherein the muting pattern indicates which of the SSBs in the frequency domain is muted; or a muting pattern in a time domain for the SSBs, wherein the muting pattern indicates which of the SSBs in the time domain is muted.
  • the base station 102 may transmit an SSB when neither the muting pattern in the frequency domain nor the muting pattern in the time domain indicates to mute the SSB.
  • FDM information comprises an indication of an association configuration comprising a plurality of associations between the FDMed SSBs and one or more control resource sets (CORESETs) , one or more CORESET occasions, or one or more physical downlink control channel (PDCCH) monitoring occasions.
  • the UE 104 may receive an indication of an association configuration comprising a plurality of associations between the FDMed SSBs and one or more control resource sets (CORESETs) , one or more CORESET occasions, or one or more PDCCH monitoring occasions.
  • each association may be between: only one SSB and at least one of the one or more CORESETs, at least one of the one or more CORESET occasions, or at least one of the one or more PDCCH monitoring occasions; or, only one CORESET, only one CORESET occasion, or only one PDCCH monitoring occasion and at least one SSB.
  • FDM information comprises an indication of a number of control resource sets (CORESETs) , a number of CORESET occasions, or a number of PDCCH monitoring occasions associated with the FDMed SSBs.
  • CORESETs control resource sets
  • PDCCH monitoring occasions associated with the FDMed SSBs.
  • FDM information comprises an indication of a frequency offset between the FDMed SSBs and an associated control resource set (CORESET) , an associated CORESET occasion, or an associated physical downlink control channel (PDCCH) monitoring occasion.
  • CORESET control resource set
  • PDCCH physical downlink control channel
  • the multiple transmission modes can be implemented based on a parameterized configuration for the design of the structures and transmission mechanisms of signals and channels in cell search and system information broadcast (such as PSS/SSS and PBCH) .
  • cell search and system information broadcast such as PSS/SSS and PBCH
  • the second synchronization information comprises SSB mode information.
  • the UE 104 can quickly acquire the information related to SSB mode without decoding the subsequent SIB1. Thus, it can save UE’s energy consumption.
  • the configuration information of two sets of SSB comprises an indication that indicates the SSBs comprises two sets.
  • the UE 104 may apply the second set of SSB for RACH procedure; or
  • the super cell information comprises a value ⁇ , where the value ⁇ is an integer number.
  • the super cell ID S cell may be s determined by the value ⁇ , ⁇ and ⁇ , where ⁇ and ⁇ are integer number.
  • ⁇ is carried by PSS and ⁇ is carried by SSS.
  • both ⁇ and ⁇ are carried by FPBCH.
  • ⁇ is carried by PSS and ⁇ is carried by PSS and SSS.
  • ⁇ is carried by PSS and ⁇ is carried by FPBCH.
  • the resource information comprises a value or an index indicating the transmission power of the SSB.
  • the resource information comprises an indication that indicates whether the SSB is associated with FPBCH.
  • the carrier information comprises an indication that indicates whether the UE not supporting cell comprising multiple carriers is allowed to access or enter this cell.
  • the carrier information comprises an indication that indicates whether the UE not supporting cell comprising multiple carriers is banned in this cell
  • the carrier information comprises an indication that indicates whether the carrier is the primary carrier or secondary carrier.
  • the carrier information comprises an indication that indicates whether the carrier is the primary carrier or secondary carrier.
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select secondary carrier for random access.
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select secondary carrier to transmit random access preamble, e.g., msg1 transmission during random access.
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select secondary carrier to transmit PUSCH scheduled by RAR UL grant.
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select other carrier for random access, e.g., other carrier than the carrier with SSB.
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select other carrier to transmit random access preamble, e.g., msg1 transmission during random access.
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select other carrier to receive random access response (RAR) .
  • RAR random access response
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select other carrier to transmit PUSCH scheduled by RAR UL grant.
  • the carrier information comprises an indication that indicates whether the UE 104 is allowed to select other carrier to receive PDSCH with UE contention resolution identity.
  • the second synchronization information comprises duplex information. Because the duplex information is carried by the SPBCH, the UE 104 can quickly acquire the information related to duplex configuration without blind detection or decoding the subsequent SIB1. Thus, it can save UE’s energy consumption.
  • the duplex information comprises an indication that indicates whether the cell applies or supports subband full duplex.
  • the duplex information comprises an indication that indicates whether the UE not supporting subband full duplex is allowed to access or enter this cell.
  • the duplex information comprises an indication that indicates whether the UE not supporting subband full duplex is banned in this cell.
  • the duplex information comprises an indication that indicates whether the SSB is transmitted in the subband full duplex symbol.
  • the subband full duplex symbol refers to symbol configured with subband.
  • the duplex information comprises an index that indicates SSBs transmitted in the subband full duplex symbol.
  • the duplex information comprises an index that indicates SSBs transmitted in the symbol without subband.
  • the duplex information comprises indexes of SSBs transmitted in the subband full duplex symbol and/or in the symbol without subband.
  • the duplex information comprises a bitmap indicating the SSBs transmitted in the subband full duplex symbol and/or SSBs in the symbol without subband.
  • the duplex information comprises an indication that indicates whether the cell applies or supports full duplex.
  • the duplex information comprises an indication that indicates whether the SSB is transmitted in the full duplex symbol.
  • the full duplex symbol refers to symbol configured with full duplex.
  • the duplex information comprises an index that indicates SSBs transmitted in the full duplex symbol.
  • the duplex information comprises an index that indicates SSBs transmitted in the symbol without full duplex.
  • the duplex information comprises indexes of SSBs transmitted in the full duplex symbol and/or in the symbol without full duplex.
  • the duplex information comprises a bitmap indicating the SSBs transmitted in the full duplex symbol and/or SSBs in the symbol without full duplex.
  • the RedCap information comprises an indication that indicates whether the cell configures bandwidth part for RedCap UE.
  • the second synchronization information comprises cyclic prefix (CP) information.
  • CP cyclic prefix
  • the CP information comprises an indication that indicates whether the cell applies or supports extended CP.
  • the CP information comprises an indication that indicates whether the bandwidth part is configured with extended CP.
  • the CP information comprises an indication that indicates whether the first active bandwidth part is configured with extended CP.
  • the CP information comprises an indication that indicates whether the initial bandwidth part is configured with extended CP.
  • the CP information comprises an indication that indicates whether the PDSCH carrying SIB1 is configured with extended CP.
  • the CP information comprises an indication that indicates whether the UE not supporting extended CP is allowed to access or enter this cell.
  • the second synchronization information comprises cell information. Because the cell information is carried by the SPBCH, the UE 104 can quickly acquire the information related to cell configuration without blind detection or decoding the subsequent SIB1. Thus, it can save UE’s energy consumption.
  • the cell information comprises an indication that indicates whether the cell or carrier is barred.
  • the cell information comprises an indication that indicates whether there is neighbor cell or carrier that is not barred.
  • the cell information comprises an indication that indicates whether neighbor cell or carrier is barred.
  • the cell information comprises an indication that indicates whether neighbor cell or carrier is barred.
  • the cell information comprises one or multiple recommended cells or carriers for the UE 104.
  • the cell information comprises one or multiple recommended cells or carriers for the UE 104.
  • the cell information comprises cell ID that is allowed to access.
  • the second synchronization information comprises energy information. Because the energy information is carried by the SPBCH, the UE 104 can quickly acquire the information related to energy related configuration without blind detection or decoding the subsequent SIB1. Thus, it can save UE’s energy consumption. It may also help the UE 104 to decode/demodulate the FPBCH and/or SPBCH.
  • the TRP information comprises a number of TRPs in this cell or carrier. In one embodiment, the TRP information comprises a number of downlink TRPs in this cell or carrier. In one embodiment, the TRP information comprises a number of uplink TRPs in this cell or carrier.
  • the AI information comprises a value or index indicating the minimum level of AI of the UE 102.
  • a UE with a lower level of AI may not be allowed to access or enter this cell or carrier.
  • the second synchronization information comprises RACH information. Because the RACH information is carried by the SPBCH, the UE 104 can quickly acquire the information related to RACH configuration without blind detection or decoding the subsequent SIB1. Thus, it can save UE’s energy consumption, e.g., if the UE 104 finds out this cell is not suitable for it, it can quickly switch to another cell or carrier.
  • the mobility information comprises candidate cells, super cells, or carriers for the UE 104. For example, if the channel status of the current cell is poor, the UE 104 may move to the target cell among the candidate cells, super cells, or carriers.
  • the WUS information comprises indication that indicates whether a UE supporting WUS is allowed to access or enter this cell.
  • the WUS information comprises an indication that indicates whether the UE not supporting WUS is banned in this cell.
  • the WUS information comprises indication that indicates whether a low power UE supporting WUS (i.e., LP-WUS UE) is allowed to access or enter this cell.
  • the WUS information comprises an indication that indicates whether the LP-WUS is banned in this cell.
  • the WUS information comprises the wave form of WUS, e.g., Amplitude Shift Keying (ASK) , On-Off Keying (OOK) , etc.
  • the wave form may indicate the supported wave form from the base station 102 perspective or the required wave form of the UE 104.
  • the RIS information comprises SSB indexes or SSBs that are transmitted or reflected by the RIS.
  • the FDM information comprises at least one of: an indication of whether the SSB is frequency division multiplexed (FDMed) ; a number of FDMed SSBs in one time instance; and/or frequency domain indexes of the SSBs.
  • FDMed frequency division multiplexed
  • the super cell information comprises at least one of: an indication whether super cell is configured or enabled or applied for a cell, wherein each super cell comprises multiple cells; a super cell identification (ID) ; a value ⁇ , where the value ⁇ is an integer number, and wherein the super cell ID S cell is determined based on ⁇ ; and/or an indication whether the wireless terminal device not supporting super cell is allowed to access or enter this cell.
  • ID super cell identification
  • the carrier information comprises at least one of: an indication whether a cell of the SSB comprises multiple carriers; an indication whether the wireless terminal device not supporting a cell comprising multiple carriers is allowed to access or enter the cell; an indication of whether the carrier is a primary carrier or a secondary carrier; a value or an index indicating a number of carriers in the cell; an indication of whether the wireless terminal device is allowed to select a secondary carrier for random access; and/or an indication of whether the wireless terminal device is allowed to select a secondary carrier to transmit random access preamble.
  • the duplex information comprises at least one of: an indication of whether a cell applies or supports subband full duplex; an indication of whether the wireless terminal device not supporting subband full duplex is allowed to access or enter the cell; an indication of whether the SSB is transmitted in the subband full duplex symbol; an indication of whether the cell applies or supports full duplex; an indication of whether the wireless terminal device not supporting full duplex is allowed to access or enter the cell; an indication of whether the SSB is transmitted in the full duplex symbol; and/or an indication of whether the SSB is transmitted in the full duplex resources.
  • the RedCap information comprises at least one of: an indication of whether a cell supports a wireless terminal device with reduced capabilities; an indication of whether the cell configures a bandwidth part for the wireless terminal device with reduced capabilities; an indication of whether the cell configures a separate bandwidth part for the wireless terminal device with reduced capabilities; and/or an indication of whether the wireless terminal device with reduced capabilities is allowed to access or enter the cell.
  • the CP information comprises at least one of: an indication of whether a cell applies or supports extended CP; an indication of whether a bandwidth part is configured with extended CP; an indication of whether a first active bandwidth part is configured with extended CP; an indication of whether an initial bandwidth part is configured with extended CP; and/or an indication of whether the PDSCH carrying SIB1 is configured with extended CP.
  • the cell information comprises at least one of: an indication of whether a neighbor cell or carrier is barred; one or multiple recommended cells or carriers for the wireless terminal device, when the first synchronization information indicates the cell and carrier is barred; and/or a cell id that is allowed to access, when a parameter ‘cellBarred’ in the first synchronization information is barred or the parameter means the cell indicated by the first synchronization information is not allowed to access.
  • the energy information comprises at least one of: an indication that indicates whether a cell or carrier is in energy saving mode; a value indicating an energy saving level; a value or an index indicating a transmission power gap between the SPBCH and the PSS; and/or a value or an index indicating a transmission power gap between a DMRS of SPBCH and a DMRS of FPBCH.
  • the TRP information comprises at least one of: TRP identification or index of the TRP; TRP identification or index of a downlink TRP; TRP identification or index of an uplink TRP; a number of TRPs in a cell or carrier; a number of downlink TRPs in the cell or carrier; and/or a number of uplink TRPs in the cell or carrier.
  • the AI information comprises at least one of: an indication of whether the wireless access network node configures and/or enables AI-based SSB detection; a value or index indicating a level of AI of the wireless access network node; and/or a value or index indicating a minimum level of AI of the wireless terminal device.
  • the RACH information comprises at least one of: an indication that indicates a RACH type could be initialized; and/or parameters for initial access of uplink.
  • the WUS information comprises at least one of: an indication of whether a wireless terminal device supporting WUS is allowed to access or enter a cell; an indication of whether a low power wireless terminal device supporting WUS is allowed to access or enter the cell; and/or a wave form of WUS,
  • the RIS information comprises at least one of: an indication of whether the SSB is transmitted or reflected by the RIS; and/or SSB indexes or SSBs that are transmitted or reflected by the RIS.
  • Embodiment 3 Relationship between the FPBCH and SPBCH
  • the SPBCH and FPBCH apply the same modulation scheme. In one embodiment, the SPBCH and FPBCH apply the same QPSK modulation scheme.
  • the SPBCH and FPBCH apply the same scrambling sequence.
  • the SPBCH is scrambled via the physical cell ID.
  • the scrambling sequence for the SPBCH is determined by the FPBCH or the first synchronization information.
  • the index of the scrambling sequence for the SPBCH may be carried by FPBCH or the first synchronization information.
  • the SPBCH and FPBCH apply the same subcarrier spacing.
  • the SPBCH and FPBCH share the same antenna port or ports.
  • terms, such as “a, ” “an, ” or “the, ” may be understood to convey a singular usage or to convey a plural usage, depending at least in part upon context.
  • the term “based on” may be understood as not necessarily intended to convey an exclusive set of factors and may, instead, allow for existence of additional factors not necessarily expressly described, again, depending at least in part on context.

Landscapes

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

Abstract

L'invention concerne un procédé comprenant un nœud de réseau d'accès sans fil (par exemple, une station de base) destiné à transmettre un premier canal de diffusion physique (FPBCH), un canal de diffusion physique secondaire (SPBCH), un signal de synchronisation primaire (PSS) et un signal de synchronisation secondaire (SSS) et un dispositif terminal sans fil (par exemple, un UE) destiné à les recevoir, le FPBCH transportant des premières informations de synchronisation, et le SPBCH transportant des secondes informations de synchronisation.
PCT/CN2024/114078 2024-08-23 2024-08-23 Canal de diffusion physique secondaire Pending WO2025148330A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/114078 WO2025148330A1 (fr) 2024-08-23 2024-08-23 Canal de diffusion physique secondaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/114078 WO2025148330A1 (fr) 2024-08-23 2024-08-23 Canal de diffusion physique secondaire

Publications (1)

Publication Number Publication Date
WO2025148330A1 true WO2025148330A1 (fr) 2025-07-17

Family

ID=96386275

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/114078 Pending WO2025148330A1 (fr) 2024-08-23 2024-08-23 Canal de diffusion physique secondaire

Country Status (1)

Country Link
WO (1) WO2025148330A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110274102A1 (en) * 2009-01-15 2011-11-10 So Yeon Kim System information transmitting and receiving device
CN105635018A (zh) * 2014-11-07 2016-06-01 中兴通讯股份有限公司 功能指示的方法、装置及系统
CN110291841A (zh) * 2017-02-02 2019-09-27 夏普株式会社 无线电系统的同步信号传输和接收
CN110521138A (zh) * 2017-03-31 2019-11-29 瑞典爱立信有限公司 波束扫描测量窗口
US20200404617A1 (en) * 2017-02-02 2020-12-24 Convida Wireless, Llc Apparatuses for transmission of paging blocks in swept downlink beams

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110274102A1 (en) * 2009-01-15 2011-11-10 So Yeon Kim System information transmitting and receiving device
CN105635018A (zh) * 2014-11-07 2016-06-01 中兴通讯股份有限公司 功能指示的方法、装置及系统
CN110291841A (zh) * 2017-02-02 2019-09-27 夏普株式会社 无线电系统的同步信号传输和接收
US20200404617A1 (en) * 2017-02-02 2020-12-24 Convida Wireless, Llc Apparatuses for transmission of paging blocks in swept downlink beams
CN110521138A (zh) * 2017-03-31 2019-11-29 瑞典爱立信有限公司 波束扫描测量窗口

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CATT: "NR PBCH and NR physical channel carried system information", 3GPP DRAFT; R1-1700182, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, USA; 20170116 - 20170120, 16 January 2017 (2017-01-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051207722 *

Similar Documents

Publication Publication Date Title
US10904859B2 (en) System and method of paging in next generation wireless communication system
US11582733B2 (en) Method and apparatus for SS/PBCH block repetition
US11206693B2 (en) Method and apparatus for transmitting and receiving a signal in a wireless communication system
US20230209542A1 (en) Method of initial access in wireless communications and related device
US20230032593A1 (en) Configuration for reference signaling in wireless communication systems
AU2012319821B2 (en) Wireless communication apparatus, wireless communication method, and wireless communication system
JP7654802B2 (ja) マルチ送信受信ポイントアップリンク方式における基準信号リソースの決定
EP3509234A1 (fr) Procédé et terminal pour déterminer un ordre de décodage aveugle pour une pluralité d'espaces de recherche
US20240137908A1 (en) Method and apparatus for paging procedure in wireless communication system
US20250142529A1 (en) Method and apparatus for paging subgroup based paging in wireless communication system
US20220053566A1 (en) Random access response message repetition
US12095682B2 (en) PDCCH transmission in RACH procedure for reduced capability devices
US12150183B2 (en) Monitoring PDCCH transmissions in a RACH procedure
US12432646B2 (en) Physical broadcast channel (PBCH) extension to manage extended master information block (MIB)
WO2021101538A1 (fr) Mise à jour de rnti de groupe lors de changement de faisceau
EP4154646A1 (fr) Émissions ssb et prach pendant un accès initial dans des communications sans fil
WO2025148330A1 (fr) Canal de diffusion physique secondaire
US20250048434A1 (en) Method and apparatus for controlling base station in wireless communication system
WO2025148271A1 (fr) Transmission de liaison montante
WO2025065585A1 (fr) Accès aléatoire pour porteuses multiples
WO2025060102A1 (fr) Combinaison de champs d'informations de commande de liaison descendante
WO2024087455A9 (fr) Procédé et appareil pour améliorer la planification d'informations système
US20250192961A1 (en) Method and device for determining beam for transmission or reception of downlink control information in wireless communication system
US20250193796A1 (en) Method and apparatus for determining bandwidth part of user equipment with wake-up receiver in wireless communication system
US20250048394A1 (en) Enhanced sidelink collision avoidance based on sensing of receiver feedback

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24916384

Country of ref document: EP

Kind code of ref document: A1