WO2021227745A1 - 时域资源配置方法及终端 - Google Patents

时域资源配置方法及终端 Download PDF

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Publication number
WO2021227745A1
WO2021227745A1 PCT/CN2021/086858 CN2021086858W WO2021227745A1 WO 2021227745 A1 WO2021227745 A1 WO 2021227745A1 CN 2021086858 W CN2021086858 W CN 2021086858W WO 2021227745 A1 WO2021227745 A1 WO 2021227745A1
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Prior art keywords
prach
time
time domain
domain granularity
configuration
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PCT/CN2021/086858
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English (en)
French (fr)
Inventor
郑石磊
王俊伟
赵锐
郑方政
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大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US17/921,108 priority Critical patent/US20230171813A1/en
Priority to JP2022566494A priority patent/JP7450761B2/ja
Priority to KR1020227043145A priority patent/KR20230008841A/ko
Priority to AU2021272167A priority patent/AU2021272167B2/en
Priority to BR112022022774A priority patent/BR112022022774A2/pt
Priority to EP21803831.3A priority patent/EP4152853A4/en
Publication of WO2021227745A1 publication Critical patent/WO2021227745A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0841Random access procedures, e.g. with 4-step access with collision treatment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/26025Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0866Non-scheduled access, e.g. ALOHA using a dedicated channel for access

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a time domain resource configuration method and terminal.
  • PRACH Physical Random Access Channel
  • NR 52.6GHz ⁇ 71GHz spectrum
  • FR2 Frequency Range 2: 24.25GHz ⁇ 52.6GHz
  • SCS subcarrier spacing
  • the number of PRACH slots that can be configured is no longer limited to 1 or 2, and the mechanism in the related technology cannot support more PRACH slot configurations, which will result in longer transmission of the same number of PRACH occasions. In this case, the transmission delay of PRACH resources is increased, and the flexibility of PRACH resource scheduling is reduced.
  • the present disclosure provides a time domain resource configuration method and terminal to solve the problem of PRACH occasion transmission delay caused by the random access time domain resource configuration mechanism in the related technology when a higher SCS PRACH is introduced.
  • the embodiment of the present disclosure provides a time domain resource configuration method, including:
  • Acquiring configuration information of a physical random access channel PRACH where the configuration information includes a first configuration value, and the first configuration value is used to indicate the configuration number of PRACH time slots in each target time domain granularity;
  • the first configuration value is the configuration number of the PRACH time slot in each first time domain granularity
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the first configuration value passes the formula:
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4 .
  • the configuration number of the PRACH time slot corresponding to the first configuration value in each first time domain granularity is determined by the radio resource Control RRC configuration or pre-configuration instructions;
  • the value range of the configuration number N′ of the PRACH time slot in each of the first time domain granularity is: [1 ⁇ 2 ⁇ ⁇ 15/60], ⁇ is a high-level parameter used to indicate subcarriers Interval SCS, ⁇ 4.
  • the first time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 60 KHz.
  • the first configuration value indicates the configuration number of the PRACH time slot in each second time domain granularity
  • the second time domain granularity is the time domain of the time slot corresponding to the subcarrier interval SCS of 240KHz length.
  • the elements in the second time-domain granularity index set in one frame period are: elements in the first time-domain granularity index set+40*i;
  • the determining the distribution of the PRACH time slot in the target time domain granularity according to the configuration information includes:
  • N′ consecutive time slots from back to front in timing are selected as the PRACH time slots;
  • N′ is the configuration number of the PRACH time slot in each target time domain granularity.
  • the determining the distribution of the PRACH time slot in the target time domain granularity according to the configuration information includes:
  • the configuration number of the PRACH time slots in each target time domain granularity and the number of effective time slots determine the distribution of the PRACH time slots in the target time domain granularity.
  • the method further includes:
  • the judgment result of the validity of each time slot is sent to the network side device.
  • judging the validity of each time slot in the target time domain granularity according to a preset condition, and filtering out valid time slots including one of the following:
  • the communication mode is time division duplex TDD mode and the terminal does not receive the TDD uplink and downlink ratio, if the time slot contains the synchronization signal block SSB, and the remaining symbol after the end of the last SSB in the time slot If the number of symbols is less than the first value, the time slot is an invalid time slot;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio, if the number of consecutive uplink symbols in the time slot is less than the first value, the time slot is an invalid time slot ;
  • the first value is Represents the number of time-domain symbols of each PRACH opportunity in the PRACH configuration information
  • N gap is a value related to the sub-carrier spacing SCS.
  • the determining the distribution of the PRACH time slots in the target time domain granularity according to the number of PRACH time slots configured in each target time domain granularity and the number of effective time slots include:
  • the distribution of the PRACH time slots is determined by one of the following methods:
  • N′ time slots are selected as the PRACH time slots in a comb shape.
  • the determining the distribution of the PRACH time slots in the target time domain granularity according to the number of PRACH time slots configured in each target time domain granularity and the number of effective time slots include:
  • M of the effective time slots are used as the PRACH time slots.
  • the determining the distribution of the PRACH time slot in the target time domain granularity according to the configuration information includes:
  • N′ consecutive time slots from back to front in timing are selected as the PRACH time slots, and N′ is the PRACH time slot in each target time domain granularity The number of configurations.
  • the segmenting the target time domain granularity according to the configuration information includes:
  • L represents the number of segmentation of the target time domain granularity
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the determining the validity of the PRACH timing in the PRACH time slot includes:
  • the PRACH timing is valid
  • the communication mode is the time division duplex TDD mode and the terminal does not receive the TDD uplink-downlink ratio
  • the PRACH time slot if there is no synchronization signal block SSB after the PRACH timing, and the PRACH timing If there is a gap of at least N gap symbols from the last symbol of the previous SSB, the PRACH timing is valid;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio
  • the PRACH timing is on the uplink symbol, and in the PRACH time slot, there is no SSB after the PRACH timing
  • the PRACH timing is at least N gap symbols apart from the last symbol of the previous SSB, and the PRACH timing is at least N gap symbols apart from the previous last downlink symbol, then the PRACH timing is valid;
  • N gap is a value related to the sub-carrier spacing SCS.
  • the embodiment of the present disclosure also provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and running on the processor, and the processor implements the following steps when the processor executes the computer program:
  • Acquiring configuration information of a physical random access channel PRACH where the configuration information includes a first configuration value, and the first configuration value is used to indicate the configuration number of PRACH time slots in each target time domain granularity;
  • the first configuration value is the configuration number of the PRACH time slot in each first time domain granularity
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the first configuration value passes the formula:
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4 .
  • the configuration number of the PRACH time slot corresponding to the first configuration value in each first time domain granularity is determined by the radio resource Control RRC configuration or pre-configuration instructions;
  • the value range of the configuration number N′ of the PRACH time slot in each of the first time domain granularity is: [1 ⁇ 2 ⁇ ⁇ 15/60], ⁇ is a high-level parameter used to indicate subcarriers Interval SCS, ⁇ 4.
  • the first time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 60 KHz.
  • the first configuration value indicates the configuration number of the PRACH time slot in each second time domain granularity
  • the second time domain granularity is the time domain of the time slot corresponding to the subcarrier interval SCS of 240KHz length.
  • the elements in the second time-domain granularity index set in one frame period are: elements in the first time-domain granularity index set+40*i;
  • the processor implements the following steps when executing the computer program:
  • N′ consecutive time slots from back to front in time sequence are selected as the PRACH time slots;
  • N′ is the configuration number of the PRACH time slot in each target time domain granularity.
  • the processor implements the following steps when executing the computer program:
  • the configuration number of the PRACH time slots in each target time domain granularity and the number of effective time slots determine the distribution of the PRACH time slots in the target time domain granularity.
  • the processor implements the following steps when executing the computer program:
  • the judgment result of the validity of each time slot is sent to the network side device.
  • the processor implements one of the following steps when executing the computer program:
  • the communication mode is time division duplex TDD mode and the terminal does not receive the TDD uplink and downlink ratio, if the time slot contains the synchronization signal block SSB, and the remaining symbol after the end of the last SSB in the time slot If the number of symbols is less than the first value, the time slot is an invalid time slot;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio, if the number of consecutive uplink symbols in the time slot is less than the first value, the time slot is an invalid time slot ;
  • the first value is Represents the number of time-domain symbols of each PRACH opportunity in the PRACH configuration information
  • N gap is a value related to the sub-carrier spacing SCS.
  • the processor implements the following steps when executing the computer program:
  • the distribution of the PRACH time slots is determined by one of the following methods:
  • N′ time slots are selected as the PRACH time slots in a comb shape.
  • the processor implements the following steps when executing the computer program:
  • M of the effective time slots are used as the PRACH time slots.
  • the processor implements the following steps when executing the computer program:
  • N′ consecutive time slots from back to front in timing are selected as the PRACH time slots, and N′ is the PRACH time slot in each target time domain granularity The number of configurations.
  • the processor implements the following steps when executing the computer program:
  • L represents the number of segmentation of the target time domain granularity
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the processor implements the following steps when executing the computer program:
  • the PRACH timing is valid
  • the communication mode is the time division duplex TDD mode and the terminal does not receive the TDD uplink-downlink ratio
  • the PRACH time slot if there is no synchronization signal block SSB after the PRACH timing, and the PRACH timing is If there is at least N gap symbols between the last symbol of the previous SSB and the last symbol of the previous SSB, the PRACH timing is valid;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio
  • the PRACH timing is on the uplink symbol, and in the PRACH time slot, there is no SSB after the PRACH timing
  • the PRACH timing is at least N gap symbols apart from the last symbol of the previous SSB, and the PRACH timing is at least N gap symbols apart from the previous last downlink symbol, then the PRACH timing is valid;
  • N gap is a value related to the sub-carrier spacing SCS.
  • the embodiment of the present disclosure provides a terminal, including:
  • An obtaining module configured to obtain configuration information of a physical random access channel PRACH, where the configuration information includes a first configuration value, and the first configuration value is used to indicate the configuration number of PRACH time slots in each target time domain granularity;
  • a first determining module configured to determine the distribution of the PRACH time slot in the target time domain granularity according to the configuration information
  • the second determining module is used to determine the validity of the PRACH timing in the PRACH time slot.
  • the embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned time-domain resource configuration method are realized.
  • the beneficial effect of the above-mentioned technical solution of the present disclosure is: in view of the possibility of introducing parameters such as higher subcarrier spacing in the frequency band above NR 52.6GHz, the first configuration value is used in the configuration information to indicate that the PRACH time slot is at each target time domain granularity. According to the configuration information, determine the distribution of PRACH time slots in the target time domain granularity, and determine the effectiveness of PRACH timing in PRACH time slots. This provides a more reliable PRACH for PRACH that may introduce larger SCS in the future Resource selection mechanism.
  • FIG. 1 shows a schematic flowchart of a time domain resource configuration method according to an embodiment of the present disclosure
  • FIG. 2 shows one of the schematic diagrams of PRACH configuration index in an embodiment of the present disclosure
  • Figure 3a shows one of the schematic diagrams of the distribution of PRACH slot in the target time domain granularity
  • Figure 3b shows the second schematic diagram of the distribution of PRACH slot in the target time domain granularity
  • FIG. 4 shows the second schematic diagram of PRACH configuration index according to an embodiment of the present disclosure
  • FIG. 5 shows a schematic diagram of a slot number in an embodiment of the present disclosure
  • Figure 6 shows the third schematic diagram of the distribution of PRACH slot in the target time domain granularity
  • Figure 7 shows the fourth schematic diagram of the distribution of PRACH slot in the target time domain granularity
  • Figure 8 shows the fifth schematic diagram of the distribution of PRACH slot in the target time domain granularity
  • Figure 9 shows the sixth schematic diagram of the distribution of PRACH slot in the target time domain granularity
  • Figures 10a to 10e show schematic diagrams of the distribution of PRACH slot in the target time domain granularity
  • Figure 11 shows the seventh schematic diagram of the distribution of PRACH slot in the target time domain granularity
  • FIG. 12 shows a schematic diagram of modules of a terminal according to an embodiment of the present disclosure
  • FIG. 13 shows a schematic diagram of the implementation structure of a terminal according to an embodiment of the present disclosure.
  • one embodiment or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present disclosure. Therefore, the appearances of "in one embodiment” or “in an embodiment” in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.
  • the form of the access network is not limited, and it can be called Macro Base Station, Pico Base Station, Node B (3 rd Generation, 3G) mobile base station. ), enhanced Node Base station (eNB), home enhanced base station (Femto eNB or Home eNode B or Home eNB or HeNB), relay station, access point, remote radio unit (Remote Radio Unit, RRU), An access network such as a remote radio head (RRH).
  • eNB enhanced Node Base station
  • relay station access point
  • remote radio unit Remote Radio Unit
  • An access network such as a remote radio head (RRH).
  • RRH remote radio head
  • the user terminal can be a mobile phone (or cell phone), or other equipment capable of sending or receiving wireless signals, including user equipment, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, and laptops Computers, cordless phones, Wireless Local Loop (WLL) stations, Customer Premise Equipment (CPE) or mobile smart hotspots, smart home appliances that can convert mobile signals into wireless fidelity (Wireless Fidelity, WiFi) signals , Or other devices that can spontaneously communicate with the mobile communication network without human operation.
  • PDAs personal digital assistants
  • WLL Wireless Local Loop
  • CPE Customer Premise Equipment
  • smart home appliances that can convert mobile signals into wireless fidelity (Wireless Fidelity, WiFi) signals , Or other devices that can spontaneously communicate with the mobile communication network without human operation.
  • the embodiment of the present disclosure provides a time domain resource configuration method, which may be PRACH time domain resource configuration for a frequency band above 52.6 GHz, and the method includes:
  • Step 11 Acquire configuration information of the physical random access channel PRACH, where the configuration information includes a first configuration value, and the first configuration value is used to indicate the configuration number of PRACH time slots in each target time domain granularity.
  • the configuration information may be a PRACH configuration index (PRACH-ConfigurationIndex) in the form of a cell configuration table.
  • the configuration information may include: a preamble format, a radio frame where the PRACH resource is located, and a time slot. Slot number, the starting symbol (Starting symbol) of the PRACH resource in the random access channel (Random Access Channel, RACH) slot, and the number of time-domain PRACH occasions in a PRACH slot (number of time-domain PRACH occasions within a) PRACH slot), the time domain symbol length of PRACH occasion (PRACH duration), and the number of PRACH slots within a time domain granularity (Number of PRACH slots within a 60kHz slot).
  • RACH Random Access Channel
  • the configuration information in this embodiment includes the first configuration value, and the first configuration value is used to indicate the configuration number of the PRACH time slot in each target time domain granularity.
  • the target time domain granularity may be the first time domain granularity or the second time domain granularity.
  • the first time domain granularity is the time domain length of the time slot corresponding to the 60KHz subcarrier interval SCS
  • the second time domain granularity is The domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 240KHz.
  • the first configuration value When the first configuration value indicates the configuration number of the PRACH time slot in each target time domain granularity, the first configuration value may directly indicate the configuration number, or it may be pre-configured or a rule defined by a high-level parameter To indicate the number of configurations. It should be noted that the number of PRACH time slots configured in each target time domain granularity may be greater than 2. For example, the number of PRACH time slots configured in each target time domain granularity is 3 and 4.
  • Step 12 Determine the distribution of the PRACH time slot in the target time domain granularity according to the configuration information.
  • the target time domain granularity includes multiple slots, and the position of the PRACH slot in the multiple slots can be determined according to the configuration information.
  • FR2 high frequency
  • PRACH supports 60KHz or 120KHz.
  • a time domain granularity ie 0.25ms
  • the first configuration value indicates that the number of PRACH timeslots configured in the target time domain granularity is 1, then the The second slot in the target time domain granularity is used as the PRACH slot, as shown in FIG. 3b, if the number of PRACH slots in the target time domain granularity indicated by the first configuration value is 2, then The two slots in the target time domain granularity are both PRACH slots.
  • the first N′ slots in the timing can be selected as the PRACH slot, or the last N′ slots in the timing can be selected As the PRACH slot, the slot can also be selected according to other forms, and the specific determination rules are set according to requirements.
  • Step 13 Determine the validity of the PRACH timing in the PRACH time slot.
  • the first configuration value is used in the configuration information to indicate the configuration number of PRACH time slots in each target time domain granularity.
  • the configuration information the distribution of PRACH time slots in the target time domain granularity is determined, and the effectiveness of PRACH timing in the PRACH time slots is determined, which provides a more reliable PRACH resource selection mechanism for PRACH that may introduce a larger SCS in the future.
  • the terminal determines the PRACH slot that needs to be configured within the current time domain granularity.
  • the first configuration value can be used to indicate the configuration number, or it can be determined by pre-configuration or rules defined by high-level parameters. Indicate the number of configurations, and the manner in which the first configuration value indicates the number of configurations of the PRACH time slot within the granularity of each target time domain will be described below through a specific embodiment.
  • the first configuration value is the configuration number of the PRACH time slot in each first time domain granularity
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the first time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 60KHz, that is, the configuration number of the PRACH time slot in each first time domain granularity, which is Number of PRACH slots within a 60KHz slot (Number of PRACH slots within a 60kHz slot).
  • the first configuration value N 3,...2 ⁇ ⁇ 15/60, ⁇ is a high-level parameter, ⁇ 4, and it can be seen from the above formula that the first configuration value in this embodiment is greater than 2, that is, PRACH
  • the number of timeslots configured in each of the first time domain granularity is greater than 2, which expands the configurable number of PRACH slots, which can ensure that when a higher SCS PRACH is introduced, the PRACH resource transmission delay can be avoided.
  • configuration parameters other than the first configuration value reference may be made to the parameters in the random access configuration table in the related technology.
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4 .
  • the first time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 60KHz, that is, the number of PRACH slots configured in each first time domain granularity, which is the PRACH slot within 60KHz slot Number.
  • the second method defines the actual meaning of the first configuration value by pre-configuration. According to the formula of the second method, the number of PRACH time slots that are actually configured in each first time domain granularity can be obtained, divided by For other configuration parameters other than the first configuration value, reference may be made to the parameters in the random access configuration table in the related art.
  • the number of actually configured PRACH time slots N′ ⁇ 2 extends the configurable number of PRACH slots, which can ensure that when a higher SCS PRACH is introduced, the PRACH resource transmission delay can be avoided.
  • Manner 3 In the case where the target time domain granularity is the first time domain granularity, the configuration number of the PRACH time slots corresponding to the first configuration value in each first time domain granularity is controlled by radio resources (Radio Resource Control, RRC) configuration or pre-configuration instructions;
  • RRC Radio Resource Control
  • the value range of the configuration number N′ of the PRACH time slot in each of the first time domain granularity is: [1 ⁇ 2 ⁇ ⁇ 15/60], ⁇ is a high-level parameter used to indicate subcarriers Interval SCS, ⁇ 4.
  • the first time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 60 KHz, that is, the configuration number of the PRACH time slot in each first time domain granularity, which is The number of PRACH slots in a 60KHz slot.
  • the value range of the configuration number N′ of the PRACH slot is: [1 ⁇ 2 ⁇ ⁇ 15/60], ⁇ 4, it can be seen that the value range of the configuration number of the PRACH slot is 1 ⁇ 4, which extends the PRACH
  • the configurable number of slots can ensure that when a higher SCS PRACH is introduced, the PRACH resource transmission delay can be avoided.
  • configuration parameters other than the first configuration value reference may be made to the parameters in the random access configuration table in the related technology.
  • the first configuration value indicates the configuration number of the PRACH time slot in each second time domain granularity
  • the second time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 240KHz .
  • the sixth column in Figure 4 is modified from "PRACH slot number in a 60KHz slot” in Figure 2 to "PRACH slot number in a 240KHz slot", and the corresponding "Slot number" corresponds to The value of is also expanded to four times the original value.
  • the original 40 slots should be expanded to 4 times and 160 slots in the same 10ms period.
  • the step 12 includes:
  • Step 121 In the target time domain granularity, select N′ consecutive time slots from back to front in timing as the PRACH time slot; N′ is the PRACH time slot in each target time domain granularity The number of configurations.
  • This embodiment determines the specific position of the PRACH slot according to the specific PRACH configuration information in step 11.
  • the specific determination rule may be: in each configured time domain granularity, sequentially select N′ from back to front in time sequence. Slots are regarded as PRACH slots. Selecting the last N′ slots in each time domain granularity as the PRACH slot can improve the effectiveness of PRACH occurrence and PRACH slot. It should be noted that other rules may also be used to select the PRACH slot according to requirements, for example, the first N′ slots in the timing sequence are selected as the PRACH slot.
  • the configured PRACH occasion is valid or not needs to be judged based on the specific frame structure, that is to say, the resources configured in the actual process need to be selected according to the changes in the actual frame structure.
  • the corresponding judgment conditions are as follows:
  • the PRACH timing is valid; that is, all PRACH occasions in this mode are valid.
  • N gap is the interval from the subcarrier
  • SCS-related values you can refer to the values in the agreements in related technologies.
  • the value of N gap includes but is not limited to ⁇ 0,2,4,8 ⁇ .
  • N gap is a value related to the subcarrier spacing SCS, which can refer to the value in the protocol in the related technology.
  • the value of N gap includes but is not limited to ⁇ 0, 2, 4, 8 ⁇ .
  • front in this embodiment refers to the front in the time sequence
  • rear refers to the back in the time sequence
  • Step1 Method 1 in step 11 above can be used, and the number of PRACH slots actually configured at this time, N′, is determined to be 2 according to the first configuration value;
  • the terminal does not receive the TDD uplink and downlink ratio.
  • Step1 The second method in the above step 11 can be used.
  • N′ the actual number of PRACH slots
  • N*240/60/2 2;
  • SCS 60KHz slot length
  • Step 13 is performed to determine the validity of the PRACH timing in the PRACH time slot.
  • each target time domain granularity contains 4 slots, and the last 3 slots are selected as PRACH slots, as shown in Figure 7;
  • Step 13 is performed to determine the validity of the PRACH timing in the PRACH time slot.
  • Step 13 is performed to determine the validity of the PRACH timing in the PRACH time slot.
  • the step 12 includes:
  • Step 121 Judging the validity of each time slot in the target time domain granularity according to a preset condition, and filtering out valid time slots.
  • the judging the validity of each time slot in the target time domain granularity according to a preset condition, and filtering out valid time slots includes one of the following:
  • the time slot contains the synchronization signal block SSB, and the last SSB in the time slot is after the end symbol If the number of remaining symbols is less than the first value, the time slot is an invalid time slot.
  • the first value Represents the number of time-domain symbols for each PRACH opportunity in the PRACH configuration information
  • N gap is a value related to the subcarrier spacing SCS, and the value of N gap includes but is not limited to ⁇ 0,2,4,8 ⁇ .
  • the PRACH slot contains SSB, and the number of symbols remaining after the last symbol of the last SSB in the PRACH slot is less than Then the PRACH slot is an invalid PRACH slot and needs to be excluded.
  • N gap is a value related to the subcarrier spacing SCS, and the value of N gap includes but is not limited to ⁇ 0,2,4,8 ⁇ .
  • Step 122 Determine the distribution of the PRACH time slots in the target time domain granularity according to the number of PRACH time slots configured in each target time domain granularity and the number of effective time slots.
  • the distribution of the PRACH time slots is determined by one of the following methods:
  • the first N′ time slots in timing are selected as the PRACH time slots; selecting the first N′ slots can reduce the transmission delay of the PRACH slot to a certain extent.
  • the last N′ time slots in time sequence are selected as the PRACH time slots; the selection of the last N′ slots can improve the PRACH occurrence and the possibility that the PRACH slot is valid.
  • N′ time slots are selected as the PRACH time slots in a comb shape. Select N'slots in a comb shape. This processing method can reduce the load of the base station to process PRACH, and in addition, it can increase the flexibility of other services in occupying the remaining resources.
  • the method further includes: sending a judgment result of the validity of each time slot to the network side device.
  • each PRACH slot in the target time domain granularity is judged one by one whether it is invalid.
  • the terminal judges whether it belongs to the above (1) and (2). Which condition in ), and notify the base station of the judgment result through the remaining minimum system information (Remaining Minimum SI, RMSI) information.
  • the network side device also judges the validity of each time slot in the target time domain granularity according to the above preset conditions, and filters Valid time slot.
  • the configured PRACH occasion is valid or not needs to be judged based on the specific frame structure, that is to say, the resources configured in the actual process need to be selected according to the changes in the actual frame structure.
  • the corresponding judgment conditions are as follows:
  • the PRACH timing is valid, that is, all PRACH occasions in this mode are valid.
  • N gap is a value related to the subcarrier spacing SCS, and the value in the protocol in the related technology can be referred to.
  • N gap is For the value related to the subcarrier spacing SCS, you can refer to the value in the protocol in the related technology.
  • the value of N gap includes but is not limited to ⁇ 0,2,4,8 ⁇ . It should be noted that the “front” in this embodiment refers to the front in the time sequence, and the “rear” refers to the back in the time sequence.
  • Step1 The first method in step 11 can be used, and the number of PRACH slots configured at this time, N′, is determined to be 2 according to the first configuration value;
  • the terminal does not receive the TDD uplink and downlink ratio.
  • Step1 adopt the method 4 in step 11, and use the 240KHz slot as the reference PRACH configuration table; at this time, the actual number of PRACH slots N′ is 2;
  • step2 if it is determined that the number of valid slots is 0, then it can be directly determined that all PRACH occasions are invalid.
  • the step 12 includes:
  • the target time domain granularity is equally divided into L segments; where L represents the number of segmentation of the target time domain granularity, ⁇ is a high-level parameter used to indicate the subcarrier interval SCS, ⁇ 4.
  • the distribution of PRACH time slots is determined for each segment of the target time domain granularity; wherein, in each segment of the target time domain granularity, the time sequence is selected from back to front Consecutive N′ time slots are used as the PRACH time slots, and N′ is the configuration number of the PRACH time slots in each target time domain granularity.
  • the PRACH configuration information is confirmed according to the specific PRACH-ConfigurationIndex; each target time domain granularity (the slot time domain length corresponding to the 60KHz SCS) is segmented according to the actual PRACH SCS; Divided into At this time, each segment should contain 2 available PRACH slots. Then, according to the specific PRACH slot number information N′ in each target time domain granularity, select the PRACH slot for each segment in the corresponding target time domain granularity.
  • the selection rule can be continuous selection from back to front in the time domain. Of N′ PRACH slots.
  • the PRACH timing is valid, that is, all PRACH occasions in this mode are valid.
  • N gap is a value related to the subcarrier spacing SCS, and the value in the protocol in the related technology can be referred to.
  • N gap is For the value related to the subcarrier spacing SCS, you can refer to the value in the protocol in the related technology.
  • the value of N gap includes but is not limited to ⁇ 0,2,4,8 ⁇ . It should be noted that the “front” in this embodiment refers to the front in the time sequence, and the “rear” refers to the back in the time sequence.
  • the first configuration value is used in the configuration information to indicate the configuration number of PRACH time slots in each target time domain granularity.
  • the configuration information the distribution of PRACH time slots in the target time domain granularity is determined, and the effectiveness of PRACH timing in the PRACH time slots is determined, which provides a more reliable PRACH resource selection mechanism for PRACH that may introduce a larger SCS in the future.
  • an embodiment of the present disclosure further provides a terminal 1200, including:
  • the obtaining module 1210 is configured to obtain configuration information of the physical random access channel PRACH, where the configuration information includes a first configuration value, and the first configuration value is used to indicate the configuration number of PRACH time slots in each target time domain granularity ;
  • the first determining module 1220 is configured to determine the distribution of the PRACH time slot in the target time domain granularity according to the configuration information
  • the second determining module 1230 is configured to determine the validity of the PRACH timing in the PRACH time slot.
  • the first configuration value is the configuration number of the PRACH time slot in each first time domain granularity
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the first configuration value passes the formula:
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4 .
  • the configuration number of the PRACH time slot corresponding to the first configuration value in each first time domain granularity is determined by the radio resource Control RRC configuration or pre-configuration instructions;
  • the value range of the configuration number N′ of the PRACH time slot in each of the first time domain granularity is: [1 ⁇ 2 ⁇ ⁇ 15/60], ⁇ is a high-level parameter used to indicate subcarriers Interval SCS, ⁇ 4.
  • the first time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 60 KHz.
  • the first configuration value indicates the configuration number of the PRACH time slot in each second time domain granularity
  • the second time domain granularity is the time domain of the time slot corresponding to the subcarrier interval SCS of 240KHz length.
  • the elements in the second time-domain granularity index set in one frame period are: elements in the first time-domain granularity index set+40*i;
  • the first determining module 1220 includes:
  • the first selection unit is configured to select N′ consecutive time slots from back to front in time sequence as the PRACH time slots in the target time domain granularity
  • N′ is the configuration number of the PRACH time slot in each target time domain granularity.
  • the first determining module 1220 includes:
  • a judging unit configured to judge the validity of each time slot in the target time domain granularity according to a preset condition, and filter out valid time slots;
  • the first determining unit is configured to determine the distribution of the PRACH time slots in the target time domain granularity according to the number of PRACH time slots configured in each target time domain granularity and the number of effective time slots .
  • the terminal further includes:
  • the sending module is used to send the judgment result of the validity of each time slot to the network side device.
  • the judging unit is specifically configured to:
  • the communication mode is time division duplex TDD mode and the terminal does not receive the TDD uplink and downlink ratio, if the time slot contains the synchronization signal block SSB, and the remaining symbol after the end of the last SSB in the time slot If the number of symbols is less than the first value, the time slot is an invalid time slot;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio, if the number of consecutive uplink symbols in the time slot is less than the first value, the time slot is an invalid time slot ;
  • the first value is Represents the number of time-domain symbols of each PRACH opportunity in the PRACH configuration information
  • N gap is a value related to the sub-carrier spacing SCS.
  • the first determining unit is specifically configured to: in the case that the number of effective time slots M is greater than or equal to the configuration number N′ of the PRACH time slots in each target time domain granularity, the following method is used One item in determines the distribution of the PRACH time slots:
  • N′ time slots are selected as the PRACH time slots in a comb shape.
  • the first determining unit is specifically configured to: in the case that the number of effective time slots M is less than the configuration number N′ of the PRACH time slots in each target time domain granularity, the number of M effective time slots The time slot is used as the PRACH time slot.
  • the first determining module 1220 includes:
  • a processing unit configured to segment the target time domain granularity according to the configuration information
  • the second determining unit is configured to determine the distribution of PRACH time slots for each segment of the target time domain granularity according to the configured number of PRACH time slots;
  • N′ consecutive time slots from back to front in timing are selected as the PRACH time slots, and N′ is the PRACH time slot in each target time domain granularity The number of configurations.
  • processing unit is specifically configured to:
  • L represents the number of segmentation of the target time domain granularity
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the second determining module 1230 is specifically configured to:
  • the PRACH timing is valid
  • the communication mode is the time division duplex TDD mode and the terminal does not receive the TDD uplink-downlink ratio
  • the PRACH time slot if there is no synchronization signal block SSB after the PRACH timing, and the PRACH timing is If there is at least N gap symbols between the last symbol of the previous SSB and the last symbol of the previous SSB, the PRACH timing is valid;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio
  • the PRACH timing is on the uplink symbol, and in the PRACH time slot, there is no SSB after the PRACH timing
  • the PRACH timing is at least N gap symbols apart from the last symbol of the previous SSB, and the PRACH timing is at least N gap symbols apart from the previous last downlink symbol, then the PRACH timing is valid;
  • N gap is a value related to the sub-carrier spacing SCS.
  • this terminal embodiment is a terminal corresponding to the above-mentioned time-domain resource configuration method, and all implementation manners of the above-mentioned embodiment are applicable to this terminal embodiment, and the same technical effect can be achieved.
  • the first configuration value is used in the configuration information to indicate the number of PRACH slots configured in each target time domain granularity, and Determining the distribution of PRACH time slots in the target time domain granularity according to the configuration information, and determining the effectiveness of PRACH timing in the PRACH time slots, provides a more reliable PRACH resource selection mechanism for PRACH that may introduce a larger SCS in the future.
  • an embodiment of the present disclosure also provides a terminal, including a transceiver 134, a memory 133, a processor 131, and a computer program stored in the memory and running on the processor. .
  • the memory 133 is connected to the processor 131 through a bus interface 132.
  • the memory 133 is used to store programs and data used by the processor 131 when performing operations.
  • the processor 131 calls and executes the When the stored programs and data are stored, the steps of the above-mentioned time-domain resource configuration method are executed.
  • the transceiver 134 is connected to the bus interface 132 and is used to receive and send data under the control of the processor 131.
  • the processor 131 implements the following steps when executing the computer program:
  • Acquiring configuration information of a physical random access channel PRACH where the configuration information includes a first configuration value, and the first configuration value is used to indicate the configuration number of PRACH time slots in each target time domain granularity;
  • the first configuration value is the configuration number of the PRACH time slot in each first time domain granularity
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the first configuration value passes the formula:
  • N′ represents the configuration number of the PRACH time slot in each first time domain granularity
  • N represents the first configuration value
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4 .
  • the configuration number of the PRACH time slot corresponding to the first configuration value in each first time domain granularity is determined by the radio resource Control RRC configuration or pre-configuration instructions;
  • the value range of the configuration number N′ of the PRACH time slot in each of the first time domain granularity is: [1 ⁇ 2 ⁇ ⁇ 15/60], ⁇ is a high-level parameter used to indicate subcarriers Interval SCS, ⁇ 4.
  • the first time domain granularity is the time domain length of the time slot corresponding to the subcarrier interval SCS of 60 KHz.
  • the first configuration value indicates the configuration number of the PRACH time slot in each second time domain granularity
  • the second time domain granularity is the time domain of the time slot corresponding to the subcarrier interval SCS of 240KHz length.
  • the elements in the second time-domain granularity index set in one frame period are: elements in the first time-domain granularity index set+40*i;
  • the processor implements the following steps when executing the computer program:
  • N′ consecutive time slots from back to front in timing are selected as the PRACH time slots;
  • N′ is the configuration number of the PRACH time slot in each target time domain granularity.
  • the processor implements the following steps when executing the computer program:
  • the configuration number of the PRACH time slots in each target time domain granularity and the number of effective time slots determine the distribution of the PRACH time slots in the target time domain granularity.
  • the processor implements the following steps when executing the computer program:
  • the judgment result of the validity of each time slot is sent to the network side device.
  • the processor implements one of the following steps when executing the computer program:
  • the communication mode is time division duplex TDD mode and the terminal does not receive the TDD uplink and downlink ratio, if the time slot contains the synchronization signal block SSB, and the remaining symbol after the end of the last SSB in the time slot If the number of symbols is less than the first value, the time slot is an invalid time slot;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio, if the number of consecutive uplink symbols in the time slot is less than the first value, the time slot is an invalid time slot ;
  • the first value is Represents the number of time-domain symbols of each PRACH opportunity in the PRACH configuration information
  • N gap is a value related to the sub-carrier spacing SCS.
  • the processor implements the following steps when executing the computer program:
  • the distribution of the PRACH time slots is determined by one of the following methods:
  • N′ time slots are selected as the PRACH time slots in a comb shape.
  • the processor implements the following steps when executing the computer program:
  • M of the effective time slots are used as the PRACH time slots.
  • the processor implements the following steps when executing the computer program:
  • N′ consecutive time slots from back to front in timing are selected as the PRACH time slots, and N′ is the PRACH time slot in each target time domain granularity The number of configurations.
  • the processor implements the following steps when executing the computer program:
  • L represents the number of segmentation of the target time domain granularity
  • is a high-level parameter used to indicate the subcarrier spacing SCS, ⁇ 4.
  • the processor implements the following steps when executing the computer program:
  • the PRACH timing is valid
  • the communication mode is the time division duplex TDD mode and the terminal does not receive the TDD uplink-downlink ratio
  • the PRACH time slot if there is no synchronization signal block SSB after the PRACH timing, and the PRACH timing is If there is at least N gap symbols between the last symbol of the previous SSB and the last symbol of the previous SSB, the PRACH timing is valid;
  • the communication mode is the time division duplex TDD mode and the terminal receives the TDD uplink and downlink ratio
  • the PRACH timing is on the uplink symbol, and in the PRACH time slot, there is no SSB after the PRACH timing
  • the PRACH timing is at least N gap symbols apart from the last symbol of the previous SSB, and the PRACH timing is at least N gap symbols apart from the previous last downlink symbol, then the PRACH timing is valid;
  • N gap is a value related to the sub-carrier spacing SCS.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 131 and various circuits of the memory represented by the memory 133 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 134 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the user interface 135 may also be an interface capable of connecting externally and internally with required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 131 is responsible for managing the bus architecture and general processing, and the memory 133 can store data used by the processor 131 when performing operations.
  • the computer program includes instructions for executing part or all of the steps of the above-mentioned method. ; And the computer program can be stored in a readable storage medium, and the storage medium can be any form of storage medium.
  • specific embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, where the program is executed by a processor to implement the steps in the above-mentioned time-domain resource configuration method. And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • each component or each step can be decomposed and/or recombined. These decomposition and/or recombination should be regarded as equivalent solutions of the present disclosure.
  • the steps of performing the above series of processing can naturally be performed in a chronological order in the order of description, but do not necessarily need to be performed in a chronological order, and some steps can be performed in parallel or independently of each other.
  • a person of ordinary skill in the art can understand that all or any of the steps or components of the methods and devices of the present disclosure can be used in any computing device (including a processor, storage medium, etc.) or a network of computing devices with hardware and firmware. , Software, or a combination of them. This can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present disclosure.
  • the purpose of the present disclosure can also be realized by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the purpose of the present disclosure can also be achieved only by providing a program product containing program code for implementing the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present disclosure, obviously, each component or each step can be decomposed and/or recombined.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure can be embodied in the form of a software product in essence or a part that contributes to the related technology.
  • the computer software product is stored in a storage medium and includes a number of instructions to make a A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • the program can be stored in a computer readable storage medium. When executed, it may include the procedures of the above-mentioned method embodiments.
  • the storage medium may be a magnetic disk, an optical disc, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.
  • modules, units, and sub-units can be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (Digital Signal Processor, DSP), and digital signal processing equipment (DSP Device, DSPD). ), programmable logic devices (Programmable Logic Device, PLD), Field-Programmable Gate Array (FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, used to implement this disclosure Other electronic units or a combination of the functions described above.
  • ASIC application specific integrated circuits
  • DSP Digital Signal Processor
  • DSP Device digital signal processing equipment
  • DSPD digital signal processing equipment
  • PLD programmable logic devices
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present disclosure can be implemented by modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.

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Abstract

本公开提供了一种时域资源配置方法及终端,所述方法包括:获取PRACH的配置信息,所述配置信息包括第一配置值,第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;根据配置信息确定所述PRACH时隙在目标时域粒度中的分布;确定所述PRACH时隙中PRACH时机的有效性。

Description

时域资源配置方法及终端
相关申请的交叉引用
本申请主张在2020年5月11日在中国提交的中国专利申请号No.202010393400.9的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,尤其涉及一种时域资源配置方法及终端。
背景技术
相关技术中的随机接入时域资源配置方法,在每个相应的持续时间中仅可以配置1或2个物理随机接入信道(Physical Random Access Channel,PRACH)时隙(slot),对于新空口(New Radio,NR)52.6GHz~71GHz频谱,相较于相关技术中的高频段FR2(Frequency range 2:24.25GHz~52.6GHz),可能会引入额外的子载波间隔(Subcarrier Spacing,SCS)等新的参数,可配置的PRACH slot数不再局限于1或2,而相关技术中的机制不能支持更多的PRACH slot配置,这会导致在传输同样数量的PRACH时机(occasion)情况下需要更长的时间,造成PRACH资源传输时延的增加,降低了PRACH资源调度的灵活性。
发明内容
本公开提供一种时域资源配置方法及终端,以解决引入更高SCS的PRACH时,相关技术中的随机接入时域资源配置机制导致PRACH occasion传输时延的问题。
本公开的实施例提供一种时域资源配置方法,包括:
获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
确定所述PRACH时隙中PRACH时机的有效性。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值为所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′=N=3,……2 μ×15/60;
N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值通过公式:
Figure PCTCN2021086858-appb-000001
指示所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值对应的所述PRACH时隙在每个所述第一时域粒度中的配置数量通过无线资源控制RRC配置或者预配置指示;
其中,所述PRACH时隙在每个所述第一时域粒度中的配置数量N′的取值范围为:[1~2 μ×15/60],μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述第一配置值指示所述PRACH时隙在每个第二时域粒度中的配置数量,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,在一个帧周期中所述第二时域粒度索引集合内的元素为:第一时域粒度索引集合内的元素+40*i;
其中,i=0,1,2,3,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
在所述目标时域粒度中,选择时序上从后向前连续N′个时隙作为所述PRACH时隙;
N′为所述PRACH时隙在每个所述目标时域粒度中的配置数量。
可选地,所述根据所述配置信息确定所述PRACH时隙在所述目标时域 粒度中的分布,包括:
根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙;
根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布。
可选地,在根据预设条件判断所述目标时域粒度中每个时隙的有效性之后,所述方法还包括:
将每个时隙的有效性的判断结果发送至网络侧设备。
可选地,根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙,包括以下其中一项:
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,若所述时隙中包含同步信号块SSB,且所述时隙中最后一个SSB末尾符号后余下的符号数小于第一值,则所述时隙为无效时隙;
在通信模式为时分双工TDD模式,且终端收到TDD上下行配比的情况下,如果所述时隙中连续的上行符号数小于所述第一值,则所述时隙为无效时隙;
其中,所述第一值为
Figure PCTCN2021086858-appb-000002
表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值。
可选地,所述根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
在所述有效时隙数量M大于或等于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,通过以下方式中的一项确定所述PRACH时隙的分布:
由M个所述有效时隙中,选择时序上的前N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,选择时序上的后N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,梳状选择N′个时隙作为所述PRACH时隙。
可选地,所述根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的 分布,包括:
在所述有效时隙数量M小于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,M个所述有效时隙作为所述PRACH时隙。
可选地,所述根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
根据所述配置信息对所述目标时域粒度进行分段;
根据所述PRACH时隙的配置数量,对所述目标时域粒度中的每一段分别确定PRACH时隙的分布;
其中,在所述目标时域粒度中的每一段中选择时序上从后向前连续N′个时隙作为所述PRACH时隙,N′为所述PRACH时隙在每个目标时域粒度中的配置数量。
可选地,所述根据所述配置信息对所述目标时域粒度进行分段,包括:
通过公式:
Figure PCTCN2021086858-appb-000003
将所述目标时域粒度均等分为L段;
其中,L表示对所述目标时域粒度进行分段的数量,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述确定所述PRACH时隙中PRACH时机的有效性,包括:
在通信模式为频分双工FDD模式的情况下,所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有同步信号块SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在上行符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个下行符号至少间隔N gap个符号,则所述PRACH时机有效;
N gap为与子载波间隔SCS相关的数值。
本公开的实施例还提供一种终端,包括:收发机、存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现以下步骤:
获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配 置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
确定所述PRACH时隙中PRACH时机的有效性。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值为所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′=N=3,……2 μ×15/60;
N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值通过公式:
Figure PCTCN2021086858-appb-000004
指示所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值对应的所述PRACH时隙在每个所述第一时域粒度中的配置数量通过无线资源控制RRC配置或者预配置指示;
其中,所述PRACH时隙在每个所述第一时域粒度中的配置数量N′的取值范围为:[1~2 μ×15/60],μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述第一配置值指示所述PRACH时隙在每个第二时域粒度中的配置数量,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,在一个帧周期中所述第二时域粒度索引集合内的元素为:第一时域粒度索引集合内的元素+40*i;
其中,i=0,1,2,3,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在所述目标时域粒度中,选择时序上从后向前连续N′个时隙作为所述 PRACH时隙;
N′为所述PRACH时隙在每个所述目标时域粒度中的配置数量。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙;
根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
将每个时隙的有效性的判断结果发送至网络侧设备。
可选地,所述处理器执行所述计算机程序时实现以下步骤的其中一项:
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,若所述时隙中包含同步信号块SSB,且所述时隙中最后一个SSB末尾符号后余下的符号数小于第一值,则所述时隙为无效时隙;
在通信模式为时分双工TDD模式,且终端收到TDD上下行配比的情况下,如果所述时隙中连续的上行符号数小于所述第一值,则所述时隙为无效时隙;
其中,所述第一值为
Figure PCTCN2021086858-appb-000005
表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在所述有效时隙数量M大于或等于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,通过以下方式中的一项确定所述PRACH时隙的分布:
由M个所述有效时隙中,选择时序上的前N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,选择时序上的后N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,梳状选择N′个时隙作为所述PRACH时隙。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在所述有效时隙数量M小于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,M个所述有效时隙作为所述PRACH时隙。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
根据所述配置信息对所述目标时域粒度进行分段;
根据所述PRACH时隙的配置数量,对所述目标时域粒度中的每一段分别确定PRACH时隙的分布;
其中,在所述目标时域粒度中的每一段中选择时序上从后向前连续N′个时隙作为所述PRACH时隙,N′为所述PRACH时隙在每个目标时域粒度中的配置数量。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
通过公式:
Figure PCTCN2021086858-appb-000006
将所述目标时域粒度均等分为L段;
其中,L表示对所述目标时域粒度进行分段的数量,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在通信模式为频分双工FDD模式的情况下,所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有同步信号块SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在上行符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个下行符号至少间隔N gap个符号,则所述PRACH时机有效;
N gap为与子载波间隔SCS相关的数值。
本公开的实施例提供一种终端,包括:
获取模块,用于获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
第一确定模块,用于根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
第二确定模块,用于确定所述PRACH时隙中PRACH时机的有效性。
本公开的实施例提供一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现上述时域资源配置方法的步骤。
本公开的上述技术方案的有益效果是:针对NR 52.6GHz以上频段可能引入更高的子载波间隔等参数的情况,在配置信息中通过第一配置值指示PRACH时隙在每个目标时域粒度内的配置数量,并根据配置信息确定PRACH时隙在目标时域粒度中的分布,以及确定PRACH时隙中PRACH时机的有效性,对于未来可能引入更大SCS的PRACH,提供了更加可靠的PRACH资源选择机制。
附图说明
图1表示本公开实施例的时域资源配置方法的流程示意图;
图2表示本公开实施例的PRACH配置索引示意图之一;
图3a表示PRACH slot在目标时域粒度内的分布示意图之一;
图3b表示PRACH slot在目标时域粒度内的分布示意图之二;
图4表示本公开实施例的PRACH配置索引示意图之二;
图5表示本公开实施例的slot number示意图;
图6表示PRACH slot在目标时域粒度内的分布示意图之三;
图7表示PRACH slot在目标时域粒度内的分布示意图之四;
图8表示PRACH slot在目标时域粒度内的分布示意图之五;
图9表示PRACH slot在目标时域粒度内的分布示意图之六;
图10a~图10e表示PRACH slot在目标时域粒度内的分布示意图;
图11表示PRACH slot在目标时域粒度内的分布示意图之七;
图12表示本公开实施例的终端的模块示意图;
图13表示本公开实施例的终端的实施结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。在下面的描述中,提供诸如具体的配置和组件的特定细节仅仅是为了帮助全面理解本公开的实施例。因此,本领域技术人员应该清楚,可以对这里描述的实施例进行各种改变和修改而不脱离本公开的范围和精神。另外,为了清楚和简洁,省略了对已知功能和构造的描述。
应理解,说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此,在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外,这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中,应理解,下述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本公开实施例的实施过程构成任何限定。
另外,本文中术语“系统”和“网络”在本文中常可互换使用。
在本申请所提供的实施例中,应理解,“与A相应的B”表示B与A相关联,根据A可以确定B。但还应理解,根据A确定B并不意味着仅仅根据A确定B,还可以根据A和/或其它信息确定B。
本公开实施例中,接入网的形式不限,可以是包括宏基站(Macro Base Station)、微基站(Pico Base Station)、Node B(第三代(3 rd Generation,3G)移动基站的称呼)、增强型基站(enhanced Node Base station,eNB)、家庭增强型基站(Femto eNB或Home eNode B或Home eNB或HeNB)、中继站、接入点、远端射频模块(Remote Radio Unit,RRU)、射频拉远头(Remote Radio Head,RRH)等的接入网。用户终端可以是移动电话(或手机),或者其他能够发送或接收无线信号的设备,包括用户设备、个人数字助理(Personal Digital Assistant,PDA)、无线调制解调器、无线通信装置、手持装置、膝上型计算机、无绳电话、无线本地回路(Wireless Local Loop,WLL)站、能够将移动信号转换为无线保真(Wireless Fidelity,WiFi)信号的客户终端(Customer Premise Equipment,CPE)或移动智能热点、智能家电、或其他不通过人的操作就能自发与移动通信网络通信的设备等。
如图1所示,本公开的实施例提供了一种时域资源配置方法,可以为针对于52.6GHz以上频段的PRACH时域资源配置,所述方法包括:
步骤11、获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量。
所述配置信息可以为小区配置的表格形式的PRACH配置索引(PRACH-ConfigurationIndex),如图2所示,所述配置信息可以包括:前导格式(Preamble  format)、PRACH资源所在的无线帧、时隙号(Slot number)、PRACH资源在随机接入信道(Random Access Channel,RACH)slot中的起始符号(Starting symbol)、一个PRACH slot中时域PRACH occasion数目(number of time-domain PRACH occasions within a PRACH slot)、PRACH occasion的时域符号长度(PRACH duration)以及一个时域粒度中PRACH slot的数目(Number of PRACH slots within a 60kHz slot)。
其中,该实施例中所述配置信息包括所述第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量。所述目标时域粒度可以为第一时域粒度也可以为第二时域粒度,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。所述第一配置值在指示PRACH时隙在每个目标时域粒度内的配置数量时,可以直接以所述第一配置值表示所述配置数量,也可以通过预配置或高层参数定义的规则来指示所述配置数量。需要说明的是,所述PRACH时隙在每个目标时域粒度内的配置数量可以大于2,例如:在每个目标时域粒度内配置的PRACH时隙数量为3、4。
步骤12、根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布。
所述目标时域粒度内包括多个slot,根据所述配置信息可以确定多个slot中的PRACH slot的位置。以高频段FR2为例,在FR2下,PRACH支持60KHz或者120KHz,在一个时域粒度(即0.25ms)中,当SCS=120KHz时,在一个时域粒度内可以有1或2个PRACH slot,如图3a所示,在一个允许有两个slot的目标时域粒度内,所述第一配置值指示所述PRACH时隙在该目标时域粒度内的配置数量为1,则可以选择所述所述目标时域粒度内的第二个slot作为PRACH slot,如图3b所示,若所述第一配置值指示的所述PRACH时隙在该目标时域粒度内的配置数量为2,则该目标时域粒度中的两个slot均为PRACH slot。
需要说明的是,在确定所述PRACH时隙在所述目标时域粒度中的分布时,可以选择时序上的前N′个slot作为所述PRACH slot,也可以选择时序上的后N′个slot作为所述PRACH slot,还可以依据其它形式进行选择,具体确定规则根据需求设置。
步骤13、确定所述PRACH时隙中PRACH时机的有效性。
在确定所述PRACH时隙在所述目标时域粒度中的分布,获得相应的PRACH资源配置后,配置的PRACH occasion是否有效还需要基于具体的帧结构进行判断,即实际过程中配置好的资源还需要根据实际的帧结构的变化进行取舍,从而最终获得有效的PRACH occasion。
本公开的实施例,针对NR 52.6GHz以上频段可能引入更高的子载波间隔等参数的情况,在配置信息中通过第一配置值指示PRACH时隙在每个目标时域粒度内的配置数量,并根据配置信息确定PRACH时隙在目标时域粒度中的分布,以及确定PRACH时隙中PRACH时机的有效性,对于未来可能引入更大SCS的PRACH,提供了更加可靠的PRACH资源选择机制。
具体地,终端在收到小区的配置信息PRACH-ConfigurationIndex后,确定需要在当前时域粒度内配置的PRACH slot。通过所述第一配置值指示PRACH时隙在每个目标时域粒度内的配置数量时,可以以所述第一配置值表示所述配置数量,也可以通过预配置或高层参数定义的规则来指示所述配置数量,下面通过具体实施例说明所述第一配置值指示所述PRACH时隙在每个目标时域粒度内的配置数量的方式。
方式一:所述目标时域粒度为第一时域粒度的情况下,所述第一配置值为所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′=N=3,……2 μ×15/60;
N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
该实施例中,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度,即所述PRACH时隙在每个所述第一时域粒度中的配置数量,为60KHz slot内PRACH slot个数(Number of PRACH slots within a 60kHz slot)。其中,所述第一配置值N=3,……2 μ×15/60,μ为高层参数,μ≥4,由上述公式可知,该实施例中所述第一配置值大于2,即PRACH时隙在每个所述第一时域粒度中的配置数量大于2,扩展了PRACH slot的可配置个数,能够保证在引入更高SCS PRACH时,避免PRACH资源传输时延。除所述第一配置值外的其他配置参数可以参考相关技术中的随机接入配置表格中的参数。
方式二:所述目标时域粒度为第一时域粒度的情况下,所述第一配置值通过公式:
Figure PCTCN2021086858-appb-000007
指示所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度,即所述PRACH时隙在每个所述第一时域粒度中的配置数量,为60KHz slot内PRACH slot个数。该方式二通过预配置的方式定义所述第一配置值代表的实际含义,根据该方式二的公式可以获得实际配置的PRACH时隙在每个所述第一时域粒度中的配置数量,除所述第一配置值外的其他配置参数可以参考相关技术中的随机接入配置表格中的参数。
由于本申请中PRACH的配置信息主要针对52.6GHz以上频段,所以这里的μ应该是大于等于2的;假设当μ=4,代表此时SCS=240KHz,如果当前配置信息中的第一配置值为N=1,那么实际配置的PRACH slot的个数为
Figure PCTCN2021086858-appb-000008
如果当前配置信息中的第一配置值为N=2,同理可以得出实际配置的PRACH slot个数为N′=4。
由μ≥4可知,实际配置的PRACH时隙的数量N′≥2,扩展了PRACH slot的可配置个数,能够保证在引入更高SCS PRACH时,避免PRACH资源传输时延。
方式三:所述目标时域粒度为第一时域粒度的情况下,所述第一配置值对应的所述PRACH时隙在每个所述第一时域粒度中的配置数量通过无线资源控制(Radio Resource Control,RRC)配置或者预配置指示;
其中,所述PRACH时隙在每个所述第一时域粒度中的配置数量N′的取值范围为:[1~2 μ×15/60],μ为高层参数,用于指示子载波间隔SCS,μ≥4。
该实施例中,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度,即所述PRACH时隙在每个所述第一时域粒度中的配置数量,为60KHz slot内PRACH slot个数。通过RRC配置或者预配置定义所述第一配置值代表的实际含义,例如:当所述第一配置值N=1时,实际配置的PRACH slot数量N′为a,当所述第一配置值N=2时,实际配置的PRACH slot数量N′为b,其中a,b的取值取决于RRC配置或者预配置。
假设高层实际情况配置了a=3,b=4,此时意味着所述配置信息中的N=1 代表实际配置PRACH slot个数为a=3个,配置信息中的N=2代表着实际配置PRACH slot个数为b=4个。
所述PRACH slot的配置数量N′的取值范围为:[1~2 μ×15/60],μ≥4,可知所述PRACH slot的配置数量的取值范围为1~4,扩展了PRACH slot的可配置个数,能够保证在引入更高SCS PRACH时,避免PRACH资源传输时延。除所述第一配置值外的其他配置参数可以参考相关技术中的随机接入配置表格中的参数。
方式四:所述第一配置值指示所述PRACH时隙在每个第二时域粒度中的配置数量,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。
该实施例中,所述配置信息中时域粒度由60KHz为基准修改为以240KHz为基准,即PRACH时隙在每个所述第二时域粒度中的配置数量,为240KHz slot内PRACH slot个数。所以一个帧周期内时域粒度索引集合也应该相应的扩展为原来的4倍,即在一个帧周期中所述第二时域粒度索引集合内的元素为:第一时域粒度索引集合内的元素+40*i;其中,i=0,1,2,3,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。如图4所示,图4中的第六列,由图2的“在一个60KHz slot内PRACH slot个数”修改为“在一个240KHz slot内PRACH slot个数”,相应的“Slot number”对应的数值也扩展为原来的四倍。
此时由于从原来的60KHz为基准变为以240KHz为基准,相同10ms周期内也应该有原来40个slots相应的扩展为4倍共160个slots,新的[slot number]集合修改为[slot number]+40*i,其中i=0,1,2,3,配置信息中其余参数不变,如图5所示。扩展了PRACH slot的可配置个数,能够保证在引入更高SCS PRACH时,避免PRACH资源传输时延。
具体地,在获取到PRACH的配置信息,且所述配置信息中的第一配置值通过上述方式中的任一项指示所述PRACH时隙在每个目标时域粒度内的配置数量后,根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布,所述步骤12包括:
步骤121:在所述目标时域粒度中,选择时序上从后向前连续N′个时隙作为所述PRACH时隙;N′为所述PRACH时隙在每个所述目标时域粒度中的配置数量。
该实施例根据步骤11中具体的PRACH的配置信息,来确定PRACH slot的具体位置,具体的确定规则可以为:在配置的每个时域粒度中,在时序上从后向前连续选择N′个slots作为PRACH slot。选择每个时域粒度中的后N′个slots作为PRACH slot,可以提升PRACH occasion以及PRACH slot的有效性。需要说明的是,也可以根据需求利用其他规则选择所述PRACH slot,例如选择时序上的前N′个slots作为PRACH slot。
可选地,在获得相应的PRACH slot资源位置后,其中配置的PRACH occasion是否有效还需要基于具体的帧结构进行判断,也就是说实际过程配置好的资源还需要根据实际帧结构的变化进行取舍,相应的判断条件如下:
A:在通信模式为频分双工(Frequency Division Duplex,FDD)模式的情况下,所述PRACH时机有效;即该模式下所有的PRACH occasion都是有效的。
B:在通信模式为时分双工(Time division duplex,TDD)模式,且终端未收到TDD上下行配比(TDD UL-DL-ConfigurationCommon)的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有同步信号块(Synchronization Signal Block,SSB),且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时机有效;N gap为与子载波间隔SCS相关的数值,可以参考相关技术中的协议中的数值,N gap的取值包括但不限于{0,2,4,8}。
C:在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在上行(Uplink,UL)符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个下行(Downlink,DL)符号至少间隔N gap个符号,则所述PRACH时机有效;N gap为与子载波间隔SCS相关的数值,可以参考相关技术中的协议中的数值,N gap的取值包括但不限于{0,2,4,8}。
需要说明的是,该实施例中的“前面”是指时序上的前面,“后面”是指时序上的后面。
下面通过具体实施例说明所述时域资源配置方法的具体实现过程。
1)例如:以FDD模式为例,假设此时PRACH采用的SCS为240KHz,即μ=2,第一配置值为N=2;
Step1:可以采用上述步骤11中的方式一,根据所述第一配置值确定此时实际配置的PRACH slot个数N′为2;
进入step2,此时每个目标时域粒度中(SCS=60KHz的slot长度),共包含4个slot,在这4个slot中选择后2个slots作为PRACH slot。
执行上述步骤13,确定所述PRACH时隙中PRACH时机的有效性。
2)例如:以TDD模式为例,终端没有收到TDD上下行配比,此时PRACH采用的SCS为240KHz,所述第一配置值为N=1;
Step1:可以采用上述步骤11中的方式二,通过预配置的方式可以知道当N=1时,实际配置PRACH slot的个数为N′为N*240/60/2=2个;
进入Step2,此时每个目标时域粒度中(SCS=60KHz的slot长度),共包含4个slot,在这4个slot中选择后2个slots作为PRACH slots。如图6所示;
执行步骤13,确定所述PRACH时隙中PRACH时机的有效性。
3)例如:以TDD模式为例,终端收到TDD上下行配比,此时PRACH采用的SCS为240KHz,所述第一配置值为N=2;
Step1:采用步骤11中的方式三方案,通过高层指示现有的N=1时,表示实际配置PRACH slot个数N′为1,当N=2时,表示实际配置的PRACH slot个数N′为3;
进入Step2,此时每个目标时域粒度中,共包含4个slot,选择后3个slot作为PRACH slots,如图7所示;
执行步骤13,确定所述PRACH时隙中PRACH时机的有效性。
4)例如:以TDD模式为例,终端收到TDD上下行配比,此时PRACH采用的SCS为480KHz,所述第一配置值为N=1;
Step1:采用步骤11中的方式四,以240KHz的slot作为基准的PRACH配置表格;此时实际中每个目标时域粒度配置的PRACH slot个数为N′=1;
进入Step2,此时每个目标时域粒度中(SCS=240KHz的slot长度),共包含2个slot,在这2个slot中选择后1个slot作为PRACH slot;
执行步骤13,确定所述PRACH时隙中PRACH时机的有效性。
具体地,在获取到PRACH的配置信息,且所述配置信息中的第一配置值通过上述方式中的任一项指示所述PRACH时隙在每个目标时域粒度内的配置数量后,所述步骤12包括:
步骤121、根据预设条件判断所述目标时域粒度中每个时隙的有效性, 筛选出有效时隙。所述根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙,包括以下其中一项:
a:在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,若所述时隙中包含同步信号块SSB,且所述时隙中最后一个SSB末尾符号后余下的符号数小于第一值,则所述时隙为无效时隙。所述第一值为
Figure PCTCN2021086858-appb-000009
表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值,N gap的取值包括但不限于{0,2,4,8}。
如果当前为TDD模式且终端未收到TDD UL-DL-ConfigurationCommon,如果PRACH slot中包含SSB,且该PRACH slot中最后一个SSB末尾符号后余下的符号数小于
Figure PCTCN2021086858-appb-000010
则该PRACH slot为无效PRACH slot,需要排除。
b:在通信模式为时分双工TDD模式,且终端收到TDD上下行配比的情况下,如果所述时隙中连续的上行符号数小于所述第一值,则所述时隙为无效时隙;所述第一值为
Figure PCTCN2021086858-appb-000011
表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值,N gap的取值包括但不限于{0,2,4,8}。
如果当前为TDD模式且终端收到了TDD UL-DL-ConfigurationCommon,如果PRACH slot中连续的UL符号数小于
Figure PCTCN2021086858-appb-000012
则判定该PRACH slot为无效PRACH slot,需要排除。
其中,N gap可以参考相关技术中的协议中PRACH配置格式索引的对应表格确定,如:N gap=0,2,与具体的SCS相关,可能会随着新SCS的引入,相应的N gap取值也需要增加,如SCS=240KHz、480KHz时,N gap=4。
该实施例可以确定所述目标时域粒度中有效的PRACH slot个数,设为M个,其中M=0,1,2……;在判断PRACH occasion的有效性之前,排除了无效slot,能够提高PRACH occasion有效的概率。
步骤122、根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布。
(1):在所述有效时隙数量M大于或等于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,如果实际可用的PRACH slot多于或等于 配置的PRACH slot个数时(M>=N),通过以下方式中的一项确定所述PRACH时隙的分布:
由M个所述有效时隙中,选择时序上的前N′个时隙作为所述PRACH时隙;选择前N′个slot,可以在一定程度上降低PRACH slot的传输时延。
由M个所述有效时隙中,选择时序上的后N′个时隙作为所述PRACH时隙;选择后N′个slot,可以提升PRACH occasion以及PRACH slot有效的可能性。
由M个所述有效时隙中,梳状选择N′个时隙作为所述PRACH时隙。以梳状选择N′个slot,这样的处理方式可以降低基站处理PRACH的负载,此外可以提升其他业务在占用其余资源的灵活性。
(2):在所述有效时隙数量M小于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,M个所述有效时隙作为所述PRACH时隙。即如果实际可用的PRACH slot少于配置的PRACH slot个数时(M<N),只能令这M个slot作为PRACH slot。
可选地,在根据预设条件判断所述目标时域粒度中每个时隙的有效性之后,所述方法还包括:将每个时隙的有效性的判断结果发送至网络侧设备。
根据不同的通信模式(TDD/FDD)以及终端是否收到TDD上下行配比参数来对目标时域粒度中的每个PRACH slot逐个进行判断是否无效,终端自行判断属于上述(1)和(2)中的哪种条件,并通过剩余最小系统信息(Remaining Minimum SI,RMSI)信息通知基站判断结果。可选地,或者终端和基站都各自依照上述的预设条件进行判断排除无效slot,即网络侧设备也通过依据上述预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙。
可选地,在获得相应的PRACH slot资源位置后,其中配置的PRACH occasion是否有效还需要基于具体的帧结构进行判断,也就是说实际过程配置好的资源还需要根据实际帧结构的变化进行取舍,相应的判断条件如下:
A:在通信模式为FDD模式的情况下,所述PRACH时机有效,即该模式下所有的PRACH occasion都是有效的。
B:在通信模式为TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时 机有效;N gap为与子载波间隔SCS相关的数值,可以参考相关技术中的协议中的数值。
C:在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在UL符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个DL符号至少间隔N gap个符号,则所述PRACH时机有效;N gap为与子载波间隔SCS相关的数值,可以参考相关技术中的协议中的数值,N gap的取值包括但不限于{0,2,4,8}。需要说明的是,该实施例中的“前面”是指时序上的前面,“后面”是指时序上的后面。
下面通过具体实施例说明所述时域资源配置方法的具体实现过程。
1)例如:以FDD模式为例,假设此时PRACH采用的SCS为240KHz,即μ=2,所述第一配置值为N=2;
Step1:可以采用上述步骤11中的方式一,根据所述第一配置值确定此时配置的PRACH slot个数N′为2;
进入Step2,此时每个目标时域粒度中(SCS=60KHz的slot长度),共包含4个slot,由于为FDD,所有的slot均是有效slot无需排除,所以共有M=4个可用slot;
进入Step3,可以在这4个slot中选择前2个或者后2个slots作为所述PRACH slot;
执行上述步骤13,确定所述PRACH时隙中PRACH时机的有效性。
2)例如:以TDD模式为例,终端没有收到TDD上下行配比,此时PRACH采用的SCS为240KHz,所述第一配置值为N=1;
Step1:如果采用步骤11中的方式二,通过预配置的方式可以知道当N=1时,实际配置PRACH slot的个数N′=N*240/60/2=2个;
进入Step2,此时每个目标时域粒度中,共包含4个slot,假设第一个slot由于不满足条件,被判定为无效slot,因此余下M=3个有效slot,如图8所示;
进入Step3,选择3个有效slot中的后两个作为PRACH slots;
执行上述步骤13,确定所述PRACH时隙中PRACH时机的有效性。
3)例如:以TDD模式为例,终端收到TDD上下行配比,此时PRACH 采用的SCS为240KHz,所述第一配置值为N=2;
Step1:采用步骤11中的方式三,通过高层指示现有的N=1时,表示实际配置PRACH slot个数N′为1,当N=2时,表示实际配置的PRACH slot个数N′为3;
进入Step2,此时每个目标时域粒度中,共包含4个slot,假设前三个slot由于不满足条件,被判定为无效slot,因此余下M=1个有效slot,如图9所示;
进入Step3,此时只有一个有效的slot,因此只有这个slot可以作为PRACH slot;
执行上述步骤13,确定所述PRACH时隙中PRACH时机的有效性。
4)例如:以TDD模式为例,终端收到TDD上下行配比,此时PRACH采用的SCS为480KHz,所述第一配置值为N=2;
Step1:采用步骤11中的方式四,以240KHz的slot作为基准的PRACH配置表格;此时实际配置的PRACH slot个数N′为2;
进入step2,如确定有效的slot个数为0,那么可以直接判定所有的PRACH occasion均为无效。
5)例如:当SCS=480KHz时,如果配置的PRACH slot在每个目标时域粒度中的个数为4,而实际有效的slot数为7,选择4个有效slot可以如图10a~10e所示的各种方案,取决于具体采用哪种选择方式,该示例以60KHz的slot时域长度作为时域粒度为例。
具体地,在获取到PRACH的配置信息后,所述步骤12包括:
根据所述配置信息对所述目标时域粒度进行分段。
具体地,可以通过公式:
Figure PCTCN2021086858-appb-000013
将所述目标时域粒度均等分为L段;其中,L表示对所述目标时域粒度进行分段的数量,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
根据所述PRACH时隙的配置数量,对所述目标时域粒度中的每一段分别确定PRACH时隙的分布;其中,在所述目标时域粒度中的每一段中选择时序上从后向前连续N′个时隙作为所述PRACH时隙,N′为所述PRACH时隙在每个目标时域粒度中的配置数量。
该实施例中,根据具体的PRACH-ConfigurationIndex,确认PRACH的配置信息;根据实际PRACH的SCS来对当前配置的每个目标时域粒度(60KHz 的SCS对应的slot时域长度)进行分段,均等分成
Figure PCTCN2021086858-appb-000014
段,此时每段中应该均包含2个可用PRACH slots。然后根据具体每个目标时域粒度中PRACH slot个数信息N′,对相应的每个目标时域粒度中的每一段进行PRACH slot的选择,选择规则可以为时域上从后向前选择连续的N′个PRACH slots。
例如,所述配置信息中的第一配置值指示的每个目标时域粒度中PRACH slot的配置数量为N′=1,此时PRACH的SCS=240KHz,每个时域粒度被分成
Figure PCTCN2021086858-appb-000015
段。此时需要在每一段中选择N′=1个PRACH slot,按照选择规则,应该选择每一段中的第二个作为PRACH slot,如图11所示。
在获得相应的PRACH slot资源位置后,其中配置的PRACH occasion是否有效还需要基于具体的帧结构进行判断,也就是说实际过程配置好的资源还需要根据实际帧结构的变化进行取舍,相应的判断条件如下:
A:在通信模式为FDD模式的情况下,所述PRACH时机有效,即该模式下所有的PRACH occasion都是有效的。
B:在通信模式为TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时机有效;N gap为与子载波间隔SCS相关的数值,可以参考相关技术中的协议中的数值。
C:在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在UL符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个DL符号至少间隔N gap个符号,则所述PRACH时机有效;N gap为与子载波间隔SCS相关的数值,可以参考相关技术中的协议中的数值,N gap的取值包括但不限于{0,2,4,8}。需要说明的是,该实施例中的“前面”是指时序上的前面,“后面”是指时序上的后面。
本公开的实施例,针对NR 52.6GHz以上频段可能引入更高的子载波间隔等参数的情况,在配置信息中通过第一配置值指示PRACH时隙在每个目标时域粒度内的配置数量,并根据配置信息确定PRACH时隙在目标时域粒度中的分布,以及确定PRACH时隙中PRACH时机的有效性,对于未来可能 引入更大SCS的PRACH,提供了更加可靠的PRACH资源选择机制。
如图12所示,本公开的实施例还提供一种终端1200,包括:
获取模块1210,用于获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
第一确定模块1220,用于根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
第二确定模块1230,用于确定所述PRACH时隙中PRACH时机的有效性。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值为所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′=N=3,……2 μ×15/60;
N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值通过公式:
Figure PCTCN2021086858-appb-000016
指示所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值对应的所述PRACH时隙在每个所述第一时域粒度中的配置数量通过无线资源控制RRC配置或者预配置指示;
其中,所述PRACH时隙在每个所述第一时域粒度中的配置数量N′的取值范围为:[1~2 μ×15/60],μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述第一配置值指示所述PRACH时隙在每个第二时域粒度中的配置数量,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,在一个帧周期中所述第二时域粒度索引集合内的元素为: 第一时域粒度索引集合内的元素+40*i;
其中,i=0,1,2,3,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述第一确定模块1220包括:
第一选择单元,用于在所述目标时域粒度中,选择时序上从后向前连续N′个时隙作为所述PRACH时隙;
N′为所述PRACH时隙在每个所述目标时域粒度中的配置数量。
可选地,所述第一确定模块1220包括:
判断单元,用于根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙;
第一确定单元,用于根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布。
可选地,所述终端还包括:
发送模块,用于将每个时隙的有效性的判断结果发送至网络侧设备。
可选地,所述判断单元具体用于:
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,若所述时隙中包含同步信号块SSB,且所述时隙中最后一个SSB末尾符号后余下的符号数小于第一值,则所述时隙为无效时隙;
在通信模式为时分双工TDD模式,且终端收到TDD上下行配比的情况下,如果所述时隙中连续的上行符号数小于所述第一值,则所述时隙为无效时隙;
其中,所述第一值为
Figure PCTCN2021086858-appb-000017
表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值。
可选地,所述第一确定单元具体用于:在所述有效时隙数量M大于或等于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,通过以下方式中的一项确定所述PRACH时隙的分布:
由M个所述有效时隙中,选择时序上的前N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,选择时序上的后N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,梳状选择N′个时隙作为所述PRACH时隙。
可选地,所述第一确定单元具体用于:在所述有效时隙数量M小于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,M个所述有效时隙作为所述PRACH时隙。
可选地,所述第一确定模块1220包括:
处理单元,用于根据所述配置信息对所述目标时域粒度进行分段;
第二确定单元,用于根据所述PRACH时隙的配置数量,对所述目标时域粒度中的每一段分别确定PRACH时隙的分布;
其中,在所述目标时域粒度中的每一段中选择时序上从后向前连续N′个时隙作为所述PRACH时隙,N′为所述PRACH时隙在每个目标时域粒度中的配置数量。
可选地,所述处理单元具体用于:
通过公式:
Figure PCTCN2021086858-appb-000018
将所述目标时域粒度均等分为L段;
其中,L表示对所述目标时域粒度进行分段的数量,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述第二确定模块1230具体用于:
在通信模式为频分双工FDD模式的情况下,所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有同步信号块SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在上行符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个下行符号至少间隔N gap个符号,则所述PRACH时机有效;
N gap为与子载波间隔SCS相关的数值。
需要说明的是,该终端实施例是与上述时域资源配置方法相对应的终端,上述实施例的所有实现方式均适用于该终端实施例中,也能达到与其相同的技术效果。该实施例中,针对NR 52.6GHz以上频段可能引入更高的子载波间隔等参数的情况,在配置信息中通过第一配置值指示PRACH时隙在每个 目标时域粒度内的配置数量,并根据配置信息确定PRACH时隙在目标时域粒度中的分布,以及确定PRACH时隙中PRACH时机的有效性,对于未来可能引入更大SCS的PRACH,提供了更加可靠的PRACH资源选择机制。
为了更好的实现上述目的,如图13所示,本公开实施例还提供一种终端,包括收发机134、存储器133、处理器131及存储在存储器上并可在处理器上运行的计算机程序。
存储器133通过总线接口132与所述处理器131相连接,所述存储器133用于存储所述处理器131在执行操作时所使用的程序和数据,当处理器131调用并执行所述存储器133中所存储的程序和数据时,执行上述时域资源配置方法的步骤。
其中,收发机134与总线接口132连接,用于在处理器131的控制下接收和发送数据。具体地,处理器131执行计算机程序时实现以下步骤:
获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
确定所述PRACH时隙中PRACH时机的有效性。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值为所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′=N=3,……2 μ×15/60;
N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值通过公式:
Figure PCTCN2021086858-appb-000019
指示所述PRACH时隙在每个所述第一时域粒度中的配置数量;
其中,N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值对应的所述PRACH时隙在每个所述第一时域粒度中的配置数量通过无线资源控制RRC配置或者预配置指示;
其中,所述PRACH时隙在每个所述第一时域粒度中的配置数量N′的取值范围为:[1~2 μ×15/60],μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述第一配置值指示所述PRACH时隙在每个第二时域粒度中的配置数量,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,在一个帧周期中所述第二时域粒度索引集合内的元素为:第一时域粒度索引集合内的元素+40*i;
其中,i=0,1,2,3,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在所述目标时域粒度中,选择时序上从后向前连续N′个时隙作为所述PRACH时隙;
N′为所述PRACH时隙在每个所述目标时域粒度中的配置数量。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙;
根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
将每个时隙的有效性的判断结果发送至网络侧设备。
可选地,所述处理器执行所述计算机程序时实现以下步骤的其中一项:
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,若所述时隙中包含同步信号块SSB,且所述时隙中最后一个SSB末尾符号后余下的符号数小于第一值,则所述时隙为无效时隙;
在通信模式为时分双工TDD模式,且终端收到TDD上下行配比的情况下,如果所述时隙中连续的上行符号数小于所述第一值,则所述时隙为无效时隙;
其中,所述第一值为
Figure PCTCN2021086858-appb-000020
表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在所述有效时隙数量M大于或等于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,通过以下方式中的一项确定所述PRACH时隙的分布:
由M个所述有效时隙中,选择时序上的前N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,选择时序上的后N′个时隙作为所述PRACH时隙;
由M个所述有效时隙中,梳状选择N′个时隙作为所述PRACH时隙。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在所述有效时隙数量M小于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,M个所述有效时隙作为所述PRACH时隙。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
根据所述配置信息对所述目标时域粒度进行分段;
根据所述PRACH时隙的配置数量,对所述目标时域粒度中的每一段分别确定PRACH时隙的分布;
其中,在所述目标时域粒度中的每一段中选择时序上从后向前连续N′个时隙作为所述PRACH时隙,N′为所述PRACH时隙在每个目标时域粒度中的配置数量。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
通过公式:
Figure PCTCN2021086858-appb-000021
将所述目标时域粒度均等分为L段;
其中,L表示对所述目标时域粒度进行分段的数量,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
可选地,所述处理器执行所述计算机程序时实现以下步骤:
在通信模式为频分双工FDD模式的情况下,所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有同步信号块SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时机有效;
在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在上行符号上,且在所述PRACH时隙中,所述 PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个下行符号至少间隔N gap个符号,则所述PRACH时机有效;
N gap为与子载波间隔SCS相关的数值。
需要说明的是,在图13中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器131代表的一个或多个处理器和存储器133代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机134可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的终端,用户接口135还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。处理器131负责管理总线架构和通常的处理,存储器133可以存储处理器131在执行操作时所使用的数据。
本领域技术人员可以理解,实现上述实施例的全部或者部分步骤可以通过硬件来完成,也可以通过计算机程序来指示相关的硬件来完成,所述计算机程序包括执行上述方法的部分或者全部步骤的指令;且该计算机程序可以存储于一可读存储介质中,存储介质可以是任何形式的存储介质。
另外,本公开具体实施例还提供一种计算机可读存储介质,其上存储有计算机程序,其中,该程序被处理器执行时实现如上述时域资源配置方法中的步骤。且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
此外,需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行,某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言,能够理解本公开的方法和装置的全部或者任何步骤或者部件,可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中,以硬件、固件、软件或者它们的组合加以实现,这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编 程技能就能实现的。
因此,本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此,本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说,这样的程序产品也构成本公开,并且存储有这样的程序产品的存储介质也构成本公开。显然,所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,是可以通过计算机程序来控制相关的硬件来完成,所述的程序可存储于计算机可读取存储介质中,该程序在执行时,可包括如上述各方法的实施例的流程。其中,所述的存储介质可为磁碟、光盘、只读存储器(Read-Only Memory,ROM)或随机存取存储器(Random Access Memory,RAM)等。
可以理解的是,本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,模块、单元、子单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processor,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现,可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (34)

  1. 一种时域资源配置方法,包括:
    获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
    根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
    确定所述PRACH时隙中PRACH时机的有效性。
  2. 根据权利要求1所述的方法,其中,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值为所述PRACH时隙在每个所述第一时域粒度中的配置数量;
    其中,N′=N=3,……2 μ×15/60;
    N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  3. 根据权利要求1所述的方法,其中,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值通过公式:
    Figure PCTCN2021086858-appb-100001
    指示所述PRACH时隙在每个所述第一时域粒度中的配置数量;
    其中,N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  4. 根据权利要求1所述的方法,其中,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值对应的所述PRACH时隙在每个所述第一时域粒度中的配置数量通过无线资源控制RRC配置或者预配置指示;
    其中,所述PRACH时隙在每个所述第一时域粒度中的配置数量N′的取值范围为:[1~2 μ×15/60],μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  5. 根据权利要求2-4中任一项所述的方法,其中,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
  6. 根据权利要求1所述的方法,其中,所述第一配置值指示所述PRACH时隙在每个第二时域粒度中的配置数量,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。
  7. 根据权利要求6所述的方法,其中,在一个帧周期中所述第二时域粒 度索引集合内的元素为:第一时域粒度索引集合内的元素+40*i;
    其中,i=0,1,2,3,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
  8. 根据权利要求1所述的方法,其中,所述根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
    在所述目标时域粒度中,选择时序上从后向前连续N′个时隙作为所述PRACH时隙;
    N′为所述PRACH时隙在每个所述目标时域粒度中的配置数量。
  9. 根据权利要求1所述的方法,其中,所述根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
    根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙;
    根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布。
  10. 根据权利要求9所述的方法,其中,在根据预设条件判断所述目标时域粒度中每个时隙的有效性之后,所述方法还包括:
    将每个时隙的有效性的判断结果发送至网络侧设备。
  11. 根据权利要求9所述的方法,其中,根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙,包括以下其中一项:
    在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,若所述时隙中包含同步信号块SSB,且所述时隙中最后一个SSB末尾符号后余下的符号数小于第一值,则所述时隙为无效时隙;
    在通信模式为时分双工TDD模式,且终端收到TDD上下行配比的情况下,如果所述时隙中连续的上行符号数小于所述第一值,则所述时隙为无效时隙;
    其中,所述第一值为
    Figure PCTCN2021086858-appb-100002
    表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值。
  12. 根据权利要求9所述的方法,其中,所述根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
    在所述有效时隙数量M大于或等于所述PRACH时隙在每个目标时域粒 度中的配置数量N′的情况下,通过以下方式中的一项确定所述PRACH时隙的分布:
    由M个所述有效时隙中,选择时序上的前N′个时隙作为所述PRACH时隙;
    由M个所述有效时隙中,选择时序上的后N′个时隙作为所述PRACH时隙;
    由M个所述有效时隙中,梳状选择N′个时隙作为所述PRACH时隙。
  13. 根据权利要求9所述的方法,其中,所述根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
    在所述有效时隙数量M小于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,M个所述有效时隙作为所述PRACH时隙。
  14. 根据权利要求1所述的方法,其中,所述根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布,包括:
    根据所述配置信息对所述目标时域粒度进行分段;
    根据所述PRACH时隙的配置数量,对所述目标时域粒度中的每一段分别确定PRACH时隙的分布;
    其中,在所述目标时域粒度中的每一段中选择时序上从后向前连续N′个时隙作为所述PRACH时隙,N′为所述PRACH时隙在每个目标时域粒度中的配置数量。
  15. 根据权利要求14所述的方法,其中,所述根据所述配置信息对所述目标时域粒度进行分段,包括:
    通过公式:
    Figure PCTCN2021086858-appb-100003
    将所述目标时域粒度均等分为L段;
    其中,L表示对所述目标时域粒度进行分段的数量,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  16. 根据权利要求1所述的方法,其中,所述确定所述PRACH时隙中PRACH时机的有效性,包括:
    在通信模式为频分双工FDD模式的情况下,所述PRACH时机有效;
    在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有同步信号块SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符 号,则所述PRACH时机有效;
    在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在上行符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个下行符号至少间隔N gap个符号,则所述PRACH时机有效;
    N gap为与子载波间隔SCS相关的数值。
  17. 一种终端,包括:收发机、存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,其中,所述处理器执行所述计算机程序时实现以下步骤:
    获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
    根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
    确定所述PRACH时隙中PRACH时机的有效性。
  18. 根据权利要求17所述的终端,其中,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值为所述PRACH时隙在每个所述第一时域粒度中的配置数量;
    其中,N′=N=3,……2 μ×15/60;
    N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  19. 根据权利要求17所述的终端,其中,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值通过公式:
    Figure PCTCN2021086858-appb-100004
    指示所述PRACH时隙在每个所述第一时域粒度中的配置数量;
    其中,N′表示所述PRACH时隙在每个所述第一时域粒度中的配置数量,N表示所述第一配置值,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  20. 根据权利要求17所述的终端,其中,所述目标时域粒度为第一时域粒度的情况下,所述第一配置值对应的所述PRACH时隙在每个所述第一时域粒度中的配置数量通过无线资源控制RRC配置或者预配置指示;
    其中,所述PRACH时隙在每个所述第一时域粒度中的配置数量N′的取 值范围为:[1~2 μ×15/60],μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  21. 根据权利要求18-20任一项所述的终端,其中,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
  22. 根据权利要求17所述的终端,其中,所述第一配置值指示所述PRACH时隙在每个第二时域粒度中的配置数量,所述第二时域粒度为240KHz的子载波间隔SCS对应的时隙的时域长度。
  23. 根据权利要求22所述的终端,其中,在一个帧周期中所述第二时域粒度索引集合内的元素为:第一时域粒度索引集合内的元素+40*i;
    其中,i=0,1,2,3,所述第一时域粒度为60KHz的子载波间隔SCS对应的时隙的时域长度。
  24. 根据权利要求17所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤:
    在所述目标时域粒度中,选择时序上从后向前连续N′个时隙作为所述PRACH时隙;
    N′为所述PRACH时隙在每个所述目标时域粒度中的配置数量。
  25. 根据权利要求17所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤:
    根据预设条件判断所述目标时域粒度中每个时隙的有效性,筛选出有效时隙;
    根据所述PRACH时隙在每个目标时域粒度中的配置数量,以及所述有效时隙的数量,确定所述PRACH时隙在所述目标时域粒度中的分布。
  26. 根据权利要求25所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤:
    将每个时隙的有效性的判断结果发送至网络侧设备。
  27. 根据权利要求25所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤的其中一项:
    在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,若所述时隙中包含同步信号块SSB,且所述时隙中最后一个SSB末尾符号后余下的符号数小于第一值,则所述时隙为无效时隙;
    在通信模式为时分双工TDD模式,且终端收到TDD上下行配比的情况下,如果所述时隙中连续的上行符号数小于所述第一值,则所述时隙为无效 时隙;
    其中,所述第一值为
    Figure PCTCN2021086858-appb-100005
    表示所述PRACH的配置信息中,每个PRACH时机的时域符号个数,N gap为与子载波间隔SCS相关的数值。
  28. 根据权利要求25所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤:
    在所述有效时隙数量M大于或等于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,通过以下方式中的一项确定所述PRACH时隙的分布:
    由M个所述有效时隙中,选择时序上的前N′个时隙作为所述PRACH时隙;
    由M个所述有效时隙中,选择时序上的后N′个时隙作为所述PRACH时隙;
    由M个所述有效时隙中,梳状选择N′个时隙作为所述PRACH时隙。
  29. 根据权利要求25所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤:
    在所述有效时隙数量M小于所述PRACH时隙在每个目标时域粒度中的配置数量N′的情况下,M个所述有效时隙作为所述PRACH时隙。
  30. 根据权利要求17所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤:
    根据所述配置信息对所述目标时域粒度进行分段;
    根据所述PRACH时隙的配置数量,对所述目标时域粒度中的每一段分别确定PRACH时隙的分布;
    其中,在所述目标时域粒度中的每一段中选择时序上从后向前连续N′个时隙作为所述PRACH时隙,N′为所述PRACH时隙在每个目标时域粒度中的配置数量。
  31. 根据权利要求30所述的终端,其中,所述处理器执行所述计算机程序时实现以下步骤:
    通过公式:
    Figure PCTCN2021086858-appb-100006
    将所述目标时域粒度均等分为L段;
    其中,L表示对所述目标时域粒度进行分段的数量,μ为高层参数,用于指示子载波间隔SCS,μ≥4。
  32. 根据权利要求17所述的终端,其中,所述处理器执行所述计算机程 序时实现以下步骤:
    在通信模式为频分双工FDD模式的情况下,所述PRACH时机有效;
    在通信模式为时分双工TDD模式,且终端未收到TDD上下行配比的情况下,在所述PRACH时隙中,若所述PRACH时机的后面没有同步信号块SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,则所述PRACH时机有效;
    在通信模式为时分双工TDD模式,且终端接收到TDD上下行配比的情况下,若所述PRACH时机在上行符号上,且在所述PRACH时隙中,所述PRACH时机的后面没有SSB,且所述PRACH时机与前面最近一个SSB末尾符号至少间隔N gap个符号,且所述PRACH时机与前面最后一个下行符号至少间隔N gap个符号,则所述PRACH时机有效;
    N gap为与子载波间隔SCS相关的数值。
  33. 一种终端,包括:
    获取模块,用于获取物理随机接入信道PRACH的配置信息,所述配置信息包括第一配置值,所述第一配置值用于指示PRACH时隙在每个目标时域粒度内的配置数量;
    第一确定模块,用于根据所述配置信息确定所述PRACH时隙在所述目标时域粒度中的分布;
    第二确定模块,用于确定所述PRACH时隙中PRACH时机的有效性。
  34. 一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现如权利要求1至16中任一项所述的时域资源配置方法的步骤。
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