WO2021072636A1 - 物理随机接入信道的配置方法、装置、终端及存储介质 - Google Patents

物理随机接入信道的配置方法、装置、终端及存储介质 Download PDF

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Publication number
WO2021072636A1
WO2021072636A1 PCT/CN2019/111256 CN2019111256W WO2021072636A1 WO 2021072636 A1 WO2021072636 A1 WO 2021072636A1 CN 2019111256 W CN2019111256 W CN 2019111256W WO 2021072636 A1 WO2021072636 A1 WO 2021072636A1
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Prior art keywords
frequency domain
resource configuration
physical resource
random access
access channel
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PCT/CN2019/111256
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English (en)
French (fr)
Inventor
刘洋
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北京小米移动软件有限公司
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Priority to PCT/CN2019/111256 priority Critical patent/WO2021072636A1/zh
Priority to CN201980002493.3A priority patent/CN111213426B/zh
Priority to US17/769,315 priority patent/US11962446B2/en
Priority to EP19949333.9A priority patent/EP4047844A4/en
Publication of WO2021072636A1 publication Critical patent/WO2021072636A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method, device, terminal and storage medium for configuring a physical random access channel.
  • NR-U 5G new radio interface unlicensed spectrum
  • Occupied Channel Bandwidth The transmission bandwidth of the transmitted signal must occupy a certain preset proportion of the system bandwidth.
  • the initial access bandwidth defined by NR-U is 48 physical resource blocks (Physical Resource Block, PRB), which is close to 20M for 30K subcarrier spacing.
  • PRB Physical Resource Block
  • the 30K subcarrier interval corresponds to a physical resource configuration pattern, so that the occupied bandwidth is slightly larger than the initial access bandwidth to meet the OCB requirements.
  • the solution proposed by the related technology is only for 30K sub-carrier intervals. For other sub-carrier intervals, there is no clear physical resource configuration pattern corresponding to other sub-carrier intervals. There are many possibilities for physical resource configuration patterns corresponding to other sub-carrier intervals. It can better solve the problem of physical random access channel configuration.
  • the embodiments of the present disclosure provide a physical random access channel configuration method, device, terminal, and storage medium, which can be used to solve the solutions proposed by related technologies, only for the 30K subcarrier interval, and for other subcarrier intervals, it is not clear There are multiple possibilities for physical resource configuration patterns corresponding to other sub-carrier intervals, and physical resource configuration patterns corresponding to other sub-carrier intervals, which cannot better solve the problem of physical random access channel configuration.
  • the technical solution is as follows:
  • a method for configuring a physical random access channel including:
  • a pattern identifier configured by an access network device, where the pattern identifier is used to configure a first physical resource configuration pattern corresponding to the first subcarrier interval of the physical random access channel in the frequency domain;
  • a second physical resource configuration pattern corresponding to the second subcarrier interval of the physical random access channel in the frequency domain is determined.
  • the physical bandwidth occupied by the physical random access channel is fixed, that is, the frequency domain bandwidth occupied by the first physical resource configuration pattern and the second physical resource configuration pattern are the same; and, the first physical resource configuration The relative positions occupied by the pattern and the second physical resource configuration pattern in the frequency domain bandwidth are the same.
  • the first subcarrier interval and the first frequency domain parameter corresponding to the first physical resource configuration pattern are determined according to the pattern identifier; according to the relationship between the first subcarrier interval and the second subcarrier interval, The first frequency domain parameter corresponding to the first physical resource configuration pattern is converted to obtain the second frequency domain parameter corresponding to the second physical resource configuration pattern.
  • the first frequency domain parameter includes at least one of the following parameters: the number of PRBs occupied by the first physical resource configuration pattern, and the repetition of the physical random access channel sequence sent in the first physical resource configuration pattern The number, the first position in the frequency domain bandwidth occupied by the physical random access channel sequence sent in the first physical resource configuration pattern; the second frequency domain parameter includes at least one of the following parameters: the second physical resource configuration pattern occupies The number of PRBs, the number of repetitions of the physical random access channel sequence sent in the second physical resource configuration pattern, the second position occupied by the physical random access channel sequence sent in the second physical resource configuration pattern in the frequency domain bandwidth .
  • the first subcarrier interval is equal to 2 n of the second subcarrier interval; let the pattern identifier be the first physical resource configuration pattern configured at the first subcarrier interval; the first physical resource configuration pattern occupies The number of PRBs is 1/2 n of the number of PRBs occupied by the second physical resource configuration pattern; the first number of physical random access channel sequences sent in the first physical resource configuration pattern is sent in the second physical resource configuration pattern 1/2 n of the second number of the physical random access channel sequence.
  • the first position occupied by the physical random access channel sequence sent in the first physical resource configuration pattern in the frequency domain bandwidth includes: at least two frequency domain units, and at least two frequency domain units There is a one-to-one correspondence with the physical random access channel sequence, and the physical random access channel sequence sent in each frequency domain unit is repeated; at least two frequency domain units are in an axisymmetric pattern according to the axis of symmetry, and the physical random access channel sequence The transmission positions in at least two frequency domain units are aligned on two sides, centered, or aligned on one side according to the axis of symmetry.
  • the at least two frequency domain units include four frequency domain units with the same time domain position, and the four frequency domain units are evenly distributed within the frequency domain bandwidth and occupy at least a preset proportion of the frequency domain bandwidth
  • the at least two frequency domain units include two frequency domain units with the same time domain position, and the two frequency domain units are distributed at both ends according to the axis of symmetry within the frequency domain bandwidth and occupy at least a preset proportion of the frequency domain bandwidth.
  • the first sub-carrier interval is one of 15 kHz, 30 kHz, and 60 kHz
  • the second sub-carrier interval is the other of 15 kHz, 30 kHz, and 60 kHz.
  • determining the second subcarrier interval of the target cell includes: receiving the SCS identifier configured by the access network device for the target cell, where the SCS identifier is used to indicate the second subcarrier interval; or, determining the target cell Pre-defined second subcarrier spacing.
  • an apparatus for configuring a physical random access channel including: a receiving module and a determining module;
  • a receiving module configured to receive a pattern identifier configured by an access network device, where the pattern identifier is used to configure a first physical resource configuration pattern corresponding to the first subcarrier interval of the physical random access channel in the frequency domain;
  • a determining module configured to determine the second subcarrier interval of the target cell
  • the determining module is configured to determine a second physical resource configuration pattern corresponding to the second subcarrier interval of the physical random access channel in the frequency domain according to the pattern identifier and the second subcarrier interval.
  • a terminal comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processing The device is configured to load and execute the executable instructions to implement the physical random access channel configuration method as described in the above aspect.
  • a computer-readable storage medium having executable instructions stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the aforementioned aspects.
  • the physical random access channel configuration method is provided.
  • the physical resource configuration pattern corresponding to the subcarrier interval of another frequency is configured. There is no need to separately configure for different subcarriers, which simplifies the The configuration method of the physical random access channel corresponding to the subcarrier.
  • Fig. 1 is a block diagram of a communication system provided by an exemplary embodiment of the present disclosure
  • Fig. 2 is a flowchart of a physical random access channel configuration method provided by an exemplary embodiment of the present disclosure
  • Fig. 3 is a schematic diagram of a physical random access channel configuration method provided by an exemplary embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a method for configuring a physical random access channel of a frame structure provided by an exemplary embodiment of the present disclosure
  • Fig. 5 is a schematic diagram of a physical random access channel configuration method provided by an exemplary embodiment of the present disclosure
  • Fig. 6 is a schematic diagram of a physical random access channel configuration method provided by an exemplary embodiment of the present disclosure
  • Fig. 7 is a block diagram of a physical random access channel configuration device provided by an exemplary embodiment of the present disclosure.
  • Fig. 8 is a block diagram of a communication device provided by an exemplary embodiment of the present disclosure.
  • FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present disclosure.
  • the communication system works in an unlicensed frequency band.
  • the communication system may include: an access network 12 and a terminal 13.
  • the access network 12 includes several access network devices 120.
  • the access network device 120 may be a base station, and the base station is a device deployed in an access network to provide a wireless communication function for a terminal.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the equipment with the base station function is called gNodeB or gNB.
  • base station may change.
  • the terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (MS), Terminal (terminal device) and so on.
  • MS mobile stations
  • Terminal terminal device
  • the access network device 120 and the terminal 13 communicate with each other through a certain air interface technology, such as a Uu interface.
  • Fig. 2 shows a flowchart of a physical random access channel configuration method provided by an exemplary embodiment of the present disclosure, which is applied to a terminal.
  • the method includes:
  • Step 201 Receive a pattern identifier configured by an access network device, where the pattern identifier is used to configure a first physical resource configuration pattern corresponding to the first subcarrier interval of the physical random access channel in the frequency domain;
  • Access network equipment is a device that provides wireless communication functions for terminals in the access network.
  • the terminal establishes a communication connection with the access network, and receives the pattern identifier configured by the access network device.
  • the function and process of establishing a communication connection between a terminal in an idle or deactivated state and an access network is usually a request to establish a connection, which is called random access.
  • the terminal sends a physical random channel, also called a preamble, to the access network device.
  • the time slot is the basic unit of scheduling.
  • the time length of different time slots corresponds to different subcarrier intervals in the frequency domain.
  • the time length of the time slot is 1 millisecond, and at this time, the subcarrier interval is 15 kHz.
  • the time length of the time slot is 0.5 milliseconds, and at this time, the subcarrier interval is 30 kHz.
  • the time length of the time slot is 0.25 milliseconds, and at this time, the subcarrier interval is 60 kHz.
  • the time length of the time slot is 0.125 milliseconds, and at this time, the subcarrier interval is 120 kHz.
  • the first subcarrier interval is any one of the foregoing subcarrier intervals, which is not limited in the present disclosure. Different subcarrier intervals correspond to different physical resource configuration styles.
  • the physical resources include frequency domain resources.
  • the physical resource configuration style is a style corresponding to the configuration of frequency domain resources.
  • the pattern identifier is an identifier for configuring the first physical resource configuration pattern corresponding to the first subcarrier interval.
  • Step 202 Determine the second subcarrier interval of the target cell
  • the subcarrier spacing type is a part of the cell random access configuration, and the target cell corresponds to the second subcarrier spacing.
  • the target cell is the cell configured by the access network equipment for the terminal during the cell handover process; or, the target cell is the cell accessed during the initial network access process after the terminal is initially powered on.
  • determining the second sub-carrier interval of the target cell includes: receiving a sub-carrier (Sub-Carrier Space, SCS) identifier configured by the access network device for the target cell, where the SCS identifier is used to indicate the second sub-carrier interval; Or, determine the second subcarrier interval predefined by the target cell.
  • SCS Sub-Carrier Space
  • ⁇ ⁇ f 2 ⁇ ⁇ 15[kHz] 0 15 1 30 2 60 3 120 4 240
  • the SCS identifier ⁇ is used to indicate the second subcarrier interval. Illustratively, if the terminal receives the SCS identifier ⁇ configured by the access network device for the target cell as 1, then the second subcarrier interval is 30 kHz; if the terminal receives the SCS identifier ⁇ configured by the access network device for the target cell as 2, Then the second subcarrier interval is 60kHz.
  • the frequency of the second subcarrier interval is different from that of the first subcarrier interval.
  • the terminal determines the second subcarrier interval of the target cell by receiving the SCS identifier configured by the access network device for the target cell, or receiving the second subcarrier interval predefined by the target cell.
  • Step 203 Determine a second physical resource configuration pattern corresponding to the second subcarrier interval of the physical random access channel in the frequency domain according to the pattern identifier and the second subcarrier interval;
  • the second physical resource configuration pattern is a physical resource configuration pattern corresponding to the second subcarrier interval.
  • the terminal determines the first physical resource configuration pattern corresponding to the first subcarrier interval according to the pattern identifier; and determines the multiple relationship between the first subcarrier interval and the second subcarrier interval according to the second subcarrier interval. According to the above two pieces of information, the second physical resource configuration pattern corresponding to the second subcarrier interval of the physical random access channel in the frequency domain is determined.
  • the physical bandwidth occupied by the physical random access channel is fixed, that is, the frequency domain bandwidth occupied by the first physical resource configuration pattern and the second physical resource configuration pattern are the same; and, the first physical resource configuration pattern and the second physical resource configuration pattern occupy the same frequency domain bandwidth; The relative positions occupied by the physical resource configuration patterns in the frequency domain bandwidth are the same.
  • the same relative position means that when the frequency domain bandwidth is fixed, the length of the first physical resource configuration pattern and the second physical resource configuration pattern in the frequency domain bandwidth are the same, and the offset from the start position of the frequency domain bandwidth is also the same.
  • the first subcarrier interval corresponding to the first physical resource configuration pattern is 30 kHz
  • the second subcarrier interval corresponding to the second physical resource configuration pattern is 15 kHz.
  • the frequency domain bandwidth occupied by the first physical resource configuration style and the second physical resource configuration style are the same.
  • the first physical resource configuration style occupies a certain position in the frequency domain bandwidth
  • the second physical resource configuration style also occupies a certain position in the frequency domain bandwidth.
  • the first physical resource configuration style and the second physical resource configuration style are in the frequency domain.
  • the relative positions occupied in the domain bandwidth are the same.
  • the first sub-carrier interval is one of 15 kHz, 30 kHz, and 60 kHz
  • the second sub-carrier interval is the other of 15 kHz, 30 kHz, and 60 kHz.
  • the first subcarrier interval and the second subcarrier interval include but are not limited to the foregoing, which is not limited in the present disclosure.
  • the method provided in this embodiment sets a pattern identifier for the subcarrier interval of one frequency, and configures the physical resource configuration pattern corresponding to the subcarrier interval of another frequency according to the pattern identifier, and does not need to be targeted Different subcarriers are configured separately, which simplifies the configuration method for physical random access channels corresponding to different subcarriers.
  • FIG. 4 shows a physical random access channel configuration method provided by an exemplary embodiment of the present disclosure, which is applied to a terminal.
  • step 203 in the foregoing embodiment can be implemented as steps 2031 and 2032 instead, and the method includes:
  • Step 201 Receive a pattern identifier configured by an access network device, where the pattern identifier is used to configure a first physical resource configuration pattern corresponding to the first subcarrier interval of the physical random access channel in the frequency domain;
  • Step 202 Determine the second subcarrier interval of the target cell
  • Step 2031 Determine, according to the pattern identifier, the first subcarrier interval and the first frequency domain parameter corresponding to the first physical resource configuration pattern;
  • the first frequency domain parameter includes at least one of the following parameters: the number of PRBs occupied by the first physical resource configuration pattern, the number of repetitions of the physical random access channel sequence sent in the first physical resource configuration pattern, and the first physical resource configuration pattern The first position in the frequency domain bandwidth occupied by the physical random access channel sequence sent in;
  • the physical random access channel is generated based on the physical random access channel sequence (preamble sequence) P 0 , P 1 , ..., P L-1 of length L.
  • the physical random access channel sequence is based on the Zadoff-Chu sequence.
  • a physical random access channel sequence with a length of 139 corresponds to 12 PRBs, that is, 144 subcarriers. It should be noted that regardless of the value of the subcarrier spacing, the physical random access channel generated based on the physical random access channel sequence of length L always occupies 12 PRBs in the frequency domain.
  • the first subcarrier interval is 30KHz as an example. Since the system bandwidth is 20M, the number of corresponding sub-carriers is 600, which accounts for about 18M, and there are 1M guard bands at both ends.
  • One PRB is composed of 12 subcarriers, so the number of PRBs occupied by the first physical resource configuration pattern is 50.
  • the number of repetitions of the physical random access channel sequence sent in the first physical resource configuration pattern is 4.
  • Step 2032 According to the relationship between the first subcarrier interval and the second subcarrier interval, convert the first frequency domain parameter corresponding to the first physical resource configuration pattern to obtain the second frequency domain corresponding to the second physical resource configuration pattern parameter;
  • the second frequency domain parameter includes at least one of the following parameters: the number of PRBs occupied by the second physical resource configuration pattern, the number of repetitions of the physical random access channel sequence sent in the second physical resource configuration pattern, and the second physical resource configuration pattern The second position in the frequency domain bandwidth occupied by the physical random access channel sequence sent in.
  • the relationship between the first subcarrier interval and the second subcarrier interval refers to the multiple relationship between the two subcarrier intervals.
  • the relationship between the first subcarrier interval and the second subcarrier interval is that the first subcarrier interval is twice the frequency of the second subcarrier interval. Since the system bandwidth is 20M, the number of corresponding sub-carriers is 1200, which accounts for about 18M, and there are 1M guard bands at both ends.
  • One PRB is composed of 12 subcarriers, so the number of PRBs occupied by the second physical resource configuration pattern is 100. The number of repetitions of the physical random access channel sequence sent in the second physical resource configuration pattern is 8.
  • the first subcarrier interval is equal to 2 n of the second subcarrier interval; the pattern identifier is the first physical resource configuration pattern configured for the first subcarrier interval, and the pattern identifier is the second physical resource configuration pattern configured for the second subcarrier interval.
  • Resource configuration pattern; the number of PRBs occupied by the first physical resource configuration pattern is 1/2 n of the number of PRBs occupied by the second physical resource configuration pattern; the first physical random access channel sequence sent in the first physical resource configuration pattern The one quantity is 1/2 n of the second quantity of the physical random access channel sequence sent in the second physical resource configuration pattern.
  • n is a negative integer or a positive integer.
  • the relationship between the first subcarrier spacing and the second subcarrier spacing is that the first subcarrier spacing is the second subcarrier spacing.
  • the number of subcarriers corresponding to the first subcarrier interval is 300, and the number of subcarriers corresponding to the second subcarrier interval is 1200, which occupies about 18M, with 1M guard bands at both ends.
  • One PRB is composed of 12 subcarriers, so the number of PRBs occupied by the first physical resource configuration pattern is 25, and the number of PRBs occupied by the second physical resource configuration pattern is 100.
  • the number of repetitions of the physical random access channel sequence sent in the second physical resource configuration pattern is 2, and the number of repetitions of the physical random access channel sequence sent in the second physical resource configuration pattern is 8.
  • the method provided in this embodiment transforms the first frequency domain parameter corresponding to the first physical resource configuration pattern through the relationship between the first subcarrier interval and the second subcarrier interval to obtain the second physical
  • the second frequency domain parameter corresponding to the resource configuration pattern does not need to be reconfigured separately, which simplifies the configuration method of the physical random access channel corresponding to different subcarriers.
  • the first position occupied by the physical random access channel sequence sent in the first physical resource configuration pattern in the frequency domain bandwidth includes: at least two frequency domain units, at least The two frequency domain units have a one-to-one correspondence with the physical random access channel sequence, and the physical random access channel sequence sent in each frequency domain unit is repeated; at least two frequency domain units are in an axisymmetric pattern according to the axis of symmetry.
  • the sending positions of the random access channel sequence in at least two frequency domain units are aligned on two sides, centered, or aligned on one side according to the axis of symmetry.
  • the first subcarrier interval is 30KHz and the length of the physical random access channel sequence is 139 as an example for illustration.
  • the first position occupied by the physical random access channel sequence sent in the first physical resource configuration pattern in the frequency domain bandwidth includes 4 frequency domain units.
  • the 4 frequency domain units correspond to 4 physical random access channel sequences, that is, each frequency domain unit corresponds to one physical random access sequence.
  • the physical random access channel sequence sent in each frequency domain unit is repeated, that is, the physical random access channel sequence sent in each frequency domain unit is the same.
  • Figure 5 shows the transmission position of the physical random access channel sequence in at least two frequency domain units:
  • the transmission positions of the physical random access channel sequence in at least two frequency domain units are aligned on both sides according to the axis of symmetry.
  • the axis of symmetry is between the second frequency domain unit and the third frequency domain unit among the 4 frequency domain units.
  • the transmission position of the physical random access channel sequence of length 139 in the frequency domain unit is at the upper part of the frequency domain unit.
  • the transmission position of the physical random access channel sequence with a length of 139 in the frequency domain unit is at the lower part of the frequency domain unit.
  • the transmission positions of the physical random access channel sequence in the 4 frequency domain units are aligned on both sides according to the axis of symmetry.
  • the transmission positions of the physical random access channel sequence in at least two frequency domain units are aligned in the center according to the axis of symmetry.
  • the axis of symmetry is between the second frequency domain unit and the third frequency domain unit among the 4 frequency domain units.
  • the transmission position of the physical random access channel sequence with a length of 139 in the frequency domain unit is in the middle of the frequency domain unit.
  • the sending positions of the physical random access channel sequence in the 4 frequency domain units are aligned in the center according to the axis of symmetry.
  • the transmission positions of the physical random access channel sequence in at least two frequency domain units are unilaterally aligned.
  • the transmission position of the physical random access channel sequence with a length of 139 in the frequency domain unit is at the upper part of the frequency domain unit.
  • the sending positions of the physical random access channel sequence in the 4 frequency domain units are aligned unilaterally according to the axis of symmetry.
  • the at least two frequency domain units include four frequency domain units with the same time domain position, and the four frequency domain units are evenly distributed within the frequency domain bandwidth and occupy at least a preset proportion of the frequency domain bandwidth; or, at least The two frequency domain units include two frequency domain units with the same position in the time domain, and the two frequency domain units are distributed at both ends according to the axis of symmetry within the frequency domain bandwidth and occupy at least a preset proportion of the frequency domain bandwidth.
  • the frequency domain bandwidth is 20M.
  • the preset ratio is 80%, that is, the transmission bandwidth of the transmitted signal is required to occupy more than 80% of the frequency domain bandwidth.
  • the first subcarrier interval is 30KHz
  • the length of the physical random access channel sequence is 139 as an example for illustration.
  • the first position occupied by the physical random access channel sequence sent in the first physical resource configuration pattern in the frequency domain bandwidth includes 4 frequency domain units.
  • the 4 frequency domain units correspond to 4 physical random access channel sequences, that is, each frequency domain unit corresponds to one physical random access sequence.
  • the at least two frequency domain units include two frequency domain units with the same time domain location, and the two frequency domain units are distributed at both ends of the frequency domain bandwidth according to the axis of symmetry and occupy at least a preset proportion of the frequency domain bandwidth.
  • the axis of symmetry is located in the middle of the frequency domain bandwidth.
  • Two frequency domain units are distributed at both ends according to the axis of symmetry within the frequency domain bandwidth, that is, one frequency domain unit is distributed at the head of the frequency domain bandwidth, and one frequency domain unit is distributed at the end of the frequency domain bandwidth.
  • the two frequency domain units occupy at least 80% of the preset ratio of the frequency domain bandwidth.
  • the at least two frequency domain units include four frequency domain units with the same time domain position, and the four frequency domain units are evenly distributed within the frequency domain bandwidth and occupy at least a preset proportion of the frequency domain bandwidth.
  • the 4 frequency domain units are uniformly distributed within the frequency domain bandwidth, that is, the 4 frequency domain units are equally spaced distributed within the frequency domain bandwidth.
  • the 4 frequency domain units occupy at least 80% of the preset ratio of the frequency domain bandwidth.
  • FIG. 7 shows a block diagram of a wireless signal transmission device provided by an exemplary embodiment of the present disclosure.
  • the device includes: a receiving module 701 and a determining module 702;
  • the receiving module 701 is configured to receive a pattern identifier configured by an access network device, where the pattern identifier is used to configure a first physical resource configuration pattern corresponding to the first subcarrier interval of the physical random access channel in the frequency domain;
  • the determining module 702 is configured to determine the second subcarrier interval of the target cell
  • the determining module 702 is configured to determine a second physical resource configuration pattern corresponding to the second subcarrier interval of the physical random access channel in the frequency domain according to the pattern identifier and the second subcarrier interval.
  • the physical bandwidth occupied by the physical random access channel is fixed, that is, the frequency domain bandwidth occupied by the first physical resource configuration pattern and the second physical resource configuration pattern are the same; and, the first physical resource configuration pattern and the second physical resource configuration pattern occupy the same frequency domain bandwidth; The relative positions occupied by the physical resource configuration patterns in the frequency domain bandwidth are the same.
  • the determining module 702 is configured to determine the first subcarrier interval and the first frequency domain parameter corresponding to the first physical resource configuration pattern according to the pattern identifier; the determining module 702 is configured to determine according to the first subcarrier interval and For the relationship between the second subcarrier spacing, the first frequency domain parameter corresponding to the first physical resource configuration pattern is converted to obtain the second frequency domain parameter corresponding to the second physical resource configuration pattern.
  • the first frequency domain parameter includes at least one of the following parameters: the number of physical resource blocks PRB occupied by the first physical resource configuration pattern, and the number of repetitions of the physical random access channel sequence sent in the first physical resource configuration pattern.
  • the second frequency domain parameter includes at least one of the following parameters: The number of PRBs, the number of repetitions of the physical random access channel sequence sent in the second physical resource configuration pattern, and the second position occupied by the physical random access channel sequence sent in the second physical resource configuration pattern in the frequency domain bandwidth.
  • the first subcarrier interval is equal to 2 n of the second subcarrier interval; the pattern identifier is the first physical resource configuration pattern configured at the first subcarrier interval; the number of PRBs occupied by the first physical resource configuration pattern is the first 2.
  • the number of PRBs occupied by the physical resource configuration pattern is 1/2 n ; the first number of physical random access channel sequences sent in the first physical resource configuration pattern is the physical random access channel sent in the second physical resource configuration pattern 1/2 n of the second number of the sequence.
  • the first position occupied by the physical random access channel sequence sent in the first physical resource configuration pattern in the frequency domain bandwidth includes: at least two frequency domain units, and at least two frequency domain units are connected to the physical random access channel.
  • the incoming channel sequence is in a one-to-one correspondence, and the physical random access channel sequence sent in each frequency domain unit is repeated; at least two frequency domain units are in an axisymmetric pattern according to the symmetry axis, and the physical random access channel sequence is in at least two
  • the transmission position in the frequency domain unit is aligned on two sides, centered, or aligned on one side according to the axis of symmetry.
  • the at least two frequency domain units include four frequency domain units with the same time domain position, and the four frequency domain units are evenly distributed within the frequency domain bandwidth and occupy at least a preset proportion of the frequency domain bandwidth; or, at least The two frequency domain units include two frequency domain units with the same position in the time domain, and the two frequency domain units are distributed at both ends according to the axis of symmetry within the frequency domain bandwidth and occupy at least a preset proportion of the frequency domain bandwidth.
  • the first sub-carrier interval is one of 15 kHz, 30 kHz, and 60 kHz
  • the second sub-carrier interval is the other of 15 kHz, 30 kHz, and 60 kHz.
  • the receiving module 701 is configured to receive the SCS identifier of the subcarrier configured by the access network device for the target cell, where the SCS identifier is used to indicate the second subcarrier interval; or the determining module 702 is configured to determine the target cell Pre-defined second subcarrier spacing.
  • FIG. 8 shows a schematic structural diagram of a terminal provided by an exemplary embodiment of the present disclosure.
  • the terminal includes: a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.
  • the processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 102 and the transmitter 103 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 104 is connected to the processor 101 through a bus 105.
  • the memory 104 may be used to store at least one instruction, and the processor 101 is used to execute the at least one instruction to implement each step in the foregoing method embodiment.
  • the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • a computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, and the at least one instruction, the At least one program, the code set, or the instruction set is loaded and executed by the processor to implement the physical random access channel configuration method performed by the communication device provided in the foregoing method embodiments.
  • the program can be stored in a computer-readable storage medium.
  • the storage medium mentioned can be a read-only memory, a magnetic disk or an optical disk, etc.

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Abstract

本公开公开了一种物理随机接入信道的配置方法、装置、终端及存储介质，涉及通信技术领域，该方法包括：接收接入网设备配置的样式标识，所述样式标识用于配置所述物理随机接入信道在频域上与第一子载波间隔对应的第一物理资源配置样式；确定目标小区的第二子载波间隔；根据所述样式标识和所述第二子载波间隔，确定所述物理随机接入信道在频域上与所述第二子载波间隔对应的第二物理资源配置样式。本公开通过为一种频率的子载波间隔设置样式标识，并根据该样式标识，配置另一种频率的子载波间隔对应的物理资源配置样式，不需要针对不同的子载波单独进行配置，简化了针对不同子载波对应的物理随机接入信道的配置方法。

Description

物理随机接入信道的配置方法、装置、终端及存储介质 技术领域
本公开涉及通信技术领域，特别涉及一种物理随机接入信道的配置方法、装置、终端及存储介质。
背景技术
随着通信技术的发展，5G新空口免授权频谱(NR-U)项目得到越来越广泛的关注。对免授权频谱的设计应该遵守全球各大地区相关的法规，包括对信道占用带宽(Occupied Channel Bandwidth,OCB)的相关要求：发送信号的传输带宽要占用系统带宽的一定预设比例。
目前NR-U定义的初始接入带宽是48个物理资源块(Physical Resource Block，PRB)，针对30K子载波间隔，接近20M。在物理随机接入信道(Physical Random Access Channel，PRACH)的配置中，30K子载波间隔对应有物理资源配置样式，使得其占据带宽略大于初始接入带宽以符合OCB要求。
相关技术提出的解决方法，只针对30K子载波间隔，对于其它子载波间隔，没有明确其它子载波间隔对应的物理资源配置样式，其它子载波间隔对应的物理资源配置样式存在多种可能性，不能较好的解决物理随机接入信道的配置的问题。
发明内容
本公开实施例提供了一种物理随机接入信道的配置方法、装置、终端及存储介质，可以用于解决相关技术提出的解决方法，只针对30K子载波间隔，对于其它子载波间隔，没有明确其它子载波间隔对应的物理资源配置样式，其它子载波间隔对应的物理资源配置样式存在多种可能性，不能较好的解决物理随机接入信道的配置的问题。所述技术方案如下：
根据本公开的一个方面，提供了一种物理随机接入信道的配置方法，所述方法包括：
接收接入网设备配置的样式标识，样式标识用于配置物理随机接入信道在 频域上与第一子载波间隔对应的第一物理资源配置样式；
确定目标小区的第二子载波间隔；
根据样式标识和第二子载波间隔，确定物理随机接入信道在频域上与第二子载波间隔对应的第二物理资源配置样式。
在一个可选的实施例中，物理随机接入信道所占用的物理带宽固定，即第一物理资源配置样式和第二物理资源配置样式所占用的频域带宽相同；且，第一物理资源配置样式和第二物理资源配置样式在频域带宽中所占用的相对位置相同。
在一个可选的实施例中，根据样式标识确定第一子载波间隔和第一物理资源配置样式对应的第一频域参数；根据第一子载波间隔和第二子载波间隔之间的关系，对第一物理资源配置样式对应的第一频域参数进行转换，得到第二物理资源配置样式对应的第二频域参数。
在一个可选的实施例中，第一频域参数包括如下参数中的至少一个：第一物理资源配置样式占用的PRB数量、第一物理资源配置样式中发送的物理随机接入信道序列的重复个数、第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置；第二频域参数包括如下参数中的至少一个：第二物理资源配置样式占用的PRB数量、第二物理资源配置样式中发送的物理随机接入信道序列的重复个数、第二物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第二位置。
在一个可选的实施例中，第一子载波间隔等于第二子载波间隔的2 n；设样式标识为第一子载波间隔配置的第一物理资源配置样式；第一物理资源配置样式所占用的PRB数目是第二物理资源配置样式所占用的PRB数目的1/2 n；第一物理资源配置样式中发送的物理随机接入信道序列的第一数量是第二物理资源配置样式中发送的物理随机接入信道序列的第二数量的1/2 n。
在一个可选的实施例中，第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置包括:至少两个频域单元，至少两个频域单元与物理随机接入信道序列呈一一对应关系，且每个频域单元中发送的物理随机接入信道序列重复；至少两个频域单元按照对称轴呈轴对称图案，物理随机接入信道序列在至少两个频域单元中的发送位置按照对称轴呈两边对齐、居中对齐或单侧对齐。
在一个可选的实施例中，至少两个频域单元包括时域位置相同的四个频域 单元，四个频域单元在频域带宽内均匀分布，且至少占用频域带宽的预设比例；或，至少两个频域单元包括时域位置相同的两个频域单元，两个频域单元在频域带宽内按照对称轴呈两端分布且至少占用频域带宽的预设比例。
在一个可选的实施例中，第一子载波间隔为15kHz、30kHz、60kHz的一个，第二子载波间隔为15kHz、30kHz、60kHz的另一个。
在一个可选的实施例中，确定目标小区的第二子载波间隔，包括：接收接入网设备为目标小区配置的SCS标识，SCS标识用于指示第二子载波间隔；或，确定目标小区预定义的第二子载波间隔。
根据本公开的一个方面，提供了一种物理随机接入信道的配置装置，该装置包括：接收模块和确定模块；
接收模块，被配置为接收接入网设备配置的样式标识，样式标识用于配置物理随机接入信道在频域上与第一子载波间隔对应的第一物理资源配置样式；
确定模块，被配置为确定目标小区的第二子载波间隔；
确定模块，被配置为根据样式标识和第二子载波间隔，确定物理随机接入信道在频域上与第二子载波间隔对应的第二物理资源配置样式。
根据本公开的一个方面，提供了一种终端，所述终端包括：处理器；与所述处理器相连的收发器；用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的物理随机接入信道的配置方法。
根据本公开的一个方面，提供了一种计算机可读存储介质，所述可读存储介质中存储有可执行指令，所述可执行指令由所述处理器加载并执行以实现如上述方面所述的物理随机接入信道的配置方法。
本公开实施例提供的技术方案至少包括如下有益效果：
通过为一种频率的子载波间隔设置样式标识，并根据该样式标识，配置另一种频率的子载波间隔对应的物理资源配置样式，不需要针对不同的子载波单独进行配置，简化了针对不同子载波对应的物理随机接入信道的配置方法。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所 需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开一个示例性实施例提供的通信系统的框图；
图2是本公开一个示例性实施例提供的物理随机接入信道的配置方法的流程图；
图3是本公开一个示例性实施例提供的物理随机接入信道的配置方法的示意图；
图4是本公开一个示例性实施例提供的帧结构的物理随机接入信道的配置方法的示意图；
图5是本公开一个示例性实施例提供的物理随机接入信道的配置方法的示意图；
图6是本公开一个示例性实施例提供的物理随机接入信道的配置方法的示意图；
图7是本公开一个示例性实施例提供的物理随机接入信道的配置装置的框图；
图8是本公开一个示例性实施例提供的通信设备的框图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
图1示出了本公开一个示例性实施例提供的通信系统的框图，该通信系统工作在免授权频段上，该通信系统可以包括：接入网12和终端13。
接入网12中包括若干个接入网设备120。接入网设备120可以是基站，所述基站是一种部署在接入网中用以为终端提供无线通信功能的装置。基站可以包括各种形式的宏基站，微基站，中继站，接入点等等。在5G NR-U系统中，具备基站功能的设备称为gNodeB或者gNB。随着通信技术的演进，“基站”这一描述可能会变化。
终端13可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备，移动台(Mobile Station，MS)，终端(terminal device)等等。为方便描 述，上面提到的设备统称为终端。接入网设备120与终端13之间通过某种空口技术互相通信，例如Uu接口。
需要说明的是，下面本公开示例性实施例仅以终端接入接入网设备为例进行举例说明，本领域技术人员在了解本公开的技术方案后，将很容易想到将本公开提供的物理随机接入信道的配置方法为后续演进的其他物理随机接入信道的配置方法，以及应用于其他终端接入其他接入网设备的情况，但应当将这些扩展方案纳入本公开的保护范围。
图2示出了本公开一个示例性实施例提供的物理随机接入信道的配置方法的流程图，应用于终端中。该方法包括：
步骤201，接收接入网设备配置的样式标识，样式标识用于配置物理随机接入信道在频域上与第一子载波间隔对应的第一物理资源配置样式；
接入网设备是在接入网中为终端提供无线通信功能的装置。可选的，终端与接入网建立通信连接，接收接入网设备配置的样式标识。
空闲态或去激活态的终端与接入网建立通信连接的功能和过程，通常为请求建立连接，称为随机接入(random access)。在随机接入过程中，终端向接入网设备发送物理随机信道，也称为前导码(preamble)。
时域上，时隙是调度的基本单元。不同时隙的时间长度对应频域上的不同的子载波间隔。
可选的，时隙的时间长度为1毫秒，此时，子载波间隔为15kHz。
可选的，时隙的时间长度为0.5毫秒，此时，子载波间隔为30kHz。
可选的，时隙的时间长度为0.25毫秒，此时，子载波间隔为60kHz。
可选的，时隙的时间长度为0.125毫秒，此时，子载波间隔为120kHz。
第一子载波间隔是上述子载波间隔中的任一种，本公开对此不进行限定。不同的子载波间隔对应不同的物理资源配置样式。
可选的，物理资源包括频域资源。物理资源配置样式是频域资源的配置对应的样式。
样式标识是对第一子载波间隔对应的第一物理资源配置样式进行配置的标识。
步骤202，确定目标小区的第二子载波间隔；
子载波间隔类型是小区随机接入配置的一部分，目标小区对应第二子载波 间隔。
目标小区是终端在小区切换过程中，接入网设备为终端配置的小区；或，目标小区是终端初始开机后，进行初始网络接入过程中接入的小区。
在一个示例中，确定目标小区的第二子载波间隔，包括：接收接入网设备为目标小区配置的子载波(Sub-Carrier Space,SCS)标识，SCS标识用于指示第二子载波间隔；或，确定目标小区预定义的第二子载波间隔。
表一子载波标识
μ Δf＝2 μ·15[kHz]
0 15
1 30
2 60
3 120
4 240
如表一所示，SCS标识μ用于指示第二子载波间隔。示意的，若终端接收到接入网设备为目标小区配置的SCS标识μ为1，则第二子载波间隔为30kHz；若终端接收到接入网设备为目标小区配置的SCS标识μ为2，则第二子载波间隔为60kHz。
需要说明的是，第二子载波间隔与第一子载波间隔的频率不同。
终端通过接收接入网设备为目标小区配置的SCS标识，或接收目标小区预定义的第二子载波间隔，从而确定目标小区的第二子载波间隔。
步骤203，根据样式标识和第二子载波间隔，确定物理随机接入信道在频域上与第二子载波间隔对应的第二物理资源配置样式；
第二物理资源配置样式是第二子载波间隔对应的物理资源配置样式。
可选的，终端根据样式标识，确定第一子载波间隔对应的第一物理资源配置样式；根据第二子载波间隔，确定第一子载波间隔和第二子载波间隔的倍数关系。根据上述两个信息，确定物理随机接入信道在频域上与第二子载波间隔对应的第二物理资源配置样式。
在一个示例中，物理随机接入信道所占用的物理带宽固定，即第一物理资源配置样式和第二物理资源配置样式所占用的频域带宽相同；且，第一物理资 源配置样式和第二物理资源配置样式在频域带宽中所占用的相对位置相同。
相对位置相同是指在频域带宽固定的情况下，第一物理资源配置样式和第二物理资源配置样式在频域带宽中的长度相同，且距离频域带宽起始位置的偏移也相同。
示意性的，如图3所示，第一物理资源配置样式对应的第一子载波间隔为30kHz，第二物理资源配置样式对应的第二子载波间隔为15kHz。第一物理资源配置样式和第二物理资源配置样式所占用的频域带宽相同。第一物理资源配置样式在频域带宽中占用了一定的位置，第二物理资源配置样式在频域带宽中也占用了一定的位置，第一物理资源配置样式和第二物理资源配置样式在频域带宽中所占用的相对位置相同。
在一个示例中，第一子载波间隔为15kHz、30kHz、60kHz的一个，第二子载波间隔为15kHz、30kHz、60kHz的另一个。
需要说明的是，随着通信标准的发展，第一子载波间隔和第二子载波间隔包括但不限于上述几种，本公开对此不加以限定。
综上所述，本实施例提供的方法，通过为一种频率的子载波间隔设置样式标识，并根据该样式标识，配置另一种频率的子载波间隔对应的物理资源配置样式，不需要针对不同的子载波单独进行配置，简化了针对不同子载波对应的物理随机接入信道的配置方法。
在基于图2的可选实施例中，图4示出了本公开一个示例性实施例提供的物理随机接入信道的配置方法，应用于终端中。在本实施例中，上述实施例中的步骤203可以替代实现为步骤2031和2032，该方法包括：
步骤201,接收接入网设备配置的样式标识，样式标识用于配置物理随机接入信道在频域上与第一子载波间隔对应的第一物理资源配置样式；
步骤202，确定目标小区的第二子载波间隔；；
步骤2031，根据样式标识确定第一子载波间隔和第一物理资源配置样式对应的第一频域参数；
第一频域参数包括如下参数中的至少一个：第一物理资源配置样式占用的PRB数量、第一物理资源配置样式中发送的物理随机接入信道序列的重复个数、第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置；
物理随机接入信道是基于长度为L的物理随机接入信道序列(前导序列)P 0、P 1、……、P L-1生成的。可选的，物理随机接入信道序列基于Zadoff-Chu序列。
以L＝139为例，长度为139的物理随机接入信道序列对应12个PRB数量，即144个子载波。需要说明的是，不管子载波间隔的数值，基于长度为L的物理随机接入信道序列生成的物理随机接入信道在频域上始终占据12个PRB。
如图3所示，以第一子载波间隔为30KHz为例。由于系统带宽是20M，对应的子载波数量为600个，大约占到18M，两端各有1M的保护频带。一个PRB由12个子载波组成，所以第一物理资源配置样式占用的PRB数量为50个。第一物理资源配置样式中发送的物理随机接入信道序列的重复个数为4个。
步骤2032，根据第一子载波间隔和第二子载波间隔之间的关系，对第一物理资源配置样式对应的第一频域参数进行转换，得到第二物理资源配置样式对应的第二频域参数；
第二频域参数包括如下参数中的至少一个：第二物理资源配置样式占用的PRB数量、第二物理资源配置样式中发送的物理随机接入信道序列的重复个数、第二物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第二位置。
第一子载波间隔和第二子载波间隔之间的关系指的是两个子载波间隔之间的的倍数关系。
如图3所示，以第二子载波间隔为15KHz为例，第一子载波间隔和第二子载波间隔之间的关系为第一子载波间隔是第二子载波间隔的频率的2倍。由于系统带宽是20M，对应的子载波数量为1200个，大约占到18M，两端各有1M的保护频带。一个PRB由12个子载波组成，所以第二物理资源配置样式占用的PRB数量为100个。第二物理资源配置样式中发送的物理随机接入信道序列的重复个数为8个。
在一个示例中，第一子载波间隔等于第二子载波间隔的2 n；样式标识为第一子载波间隔配置的第一物理资源配置样式，样式标识为第二子载波间隔配置的第二物理资源配置样式；第一物理资源配置样式所占用的PRB数目是第二物理资源配置样式所占用的PRB数目的1/2 n；第一物理资源配置样式中发送的物理随机接入信道序列的第一数量是第二物理资源配置样式中发送的物理随机接入信道序列的第二数量的1/2 n。
需要说明的是，n为负整数或正整数。
如图3所示，以第一子载波间隔为60KHz、第二子载波间隔为15KHz为例，第一子载波间隔和第二子载波间隔之间的关系为第一子载波间隔是第二子载波间隔的频率的4倍，即2 n(n＝2)倍。
由于系统带宽是20M，第一子载波间隔对应的子载波数量为300个，第二子载波间隔对应的子载波数量为1200个，大约占到18M，两端各有1M的保护频带。一个PRB由12个子载波组成，所以第一物理资源配置样式占用的PRB数量为25个,第二物理资源配置样式占用的PRB数量为100个。第一物理资源配置样式所占用的PRB数目是第二物理资源配置样式所占用的PRB数目的1/2 n(n＝2)。
第二物理资源配置样式中发送的物理随机接入信道序列的重复个数为2个，第二物理资源配置样式中发送的物理随机接入信道序列的重复个数为8个。第一物理资源配置样式中发送的物理随机接入信道序列的第一数量是第二物理资源配置样式中发送的物理随机接入信道序列的第二数量的1/2 n(n＝2)。
综上所述，本实施例提供的方法，通过第一子载波间隔和第二子载波间隔之间的关系，对第一物理资源配置样式对应的第一频域参数进行转换，得到第二物理资源配置样式对应的第二频域参数，不需要对第二频域参数进行重新单独配置，简化了针对不同子载波对应的物理随机接入信道的配置方法。
在基于图2和图4的可选实施例中，第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置包括:至少两个频域单元，至少两个频域单元与物理随机接入信道序列呈一一对应关系，且每个频域单元中发送的物理随机接入信道序列重复；至少两个频域单元按照对称轴呈轴对称图案，物理随机接入信道序列在至少两个频域单元中的发送位置按照对称轴呈两边对齐、居中对齐或单侧对齐。
如图5所示，以第一子载波间隔为30KHz，物理随机接入信道序列的长度为139为例进行举例说明。第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置包括4个频域单元。4个频域单元对应4个物理随机接入信道序列，即每个频域单元对应一个物理随机接入序列。
每个频域单元中发送的物理随机接入信道序列重复，即每个频域单元中发送的物理随机接入信道序列是相同的。
图5示出了物理随机接入信道序列在至少两个频域单元中的发送位置的情况：
一、物理随机接入信道序列在至少两个频域单元中的发送位置按照对称轴呈两边对齐。
对称轴在4个频域单元中的第二个频域单元和第三个频域单元之间。
在频域位置处于上方的两个频域单元中，长度为139的物理随机接入信道序列在频域单元中的发送位置在频域单元中的上部。在频域位置处于下方的两个频域单元中，长度为139的物理随机接入信道序列在频域单元中的发送位置在频域单元中的下部。物理随机接入信道序列在4个频域单元中的发送位置按照对称轴呈两边对齐。
二、物理随机接入信道序列在至少两个频域单元中的发送位置按照对称轴呈居中对齐。
对称轴在4个频域单元中的第二个频域单元和第三个频域单元之间。
在4个频域单元中，长度为139的物理随机接入信道序列在频域单元中的发送位置在频域单元中的中部。物理随机接入信道序列在4个频域单元中的发送位置按照对称轴呈居中对齐。
三、物理随机接入信道序列在至少两个频域单元中的发送位置呈单侧对齐。
在4个频域单元中，长度为139的物理随机接入信道序列在频域单元中的发送位置在频域单元中的上部。物理随机接入信道序列在4个频域单元中的发送位置按照对称轴呈单侧对齐。
在一个示例中，至少两个频域单元包括时域位置相同的四个频域单元，四个频域单元在频域带宽内均匀分布，且至少占用频域带宽的预设比例；或，至少两个频域单元包括时域位置相同的两个频域单元，两个频域单元在频域带宽内按照对称轴呈两端分布且至少占用频域带宽的预设比例。
可选的，频域带宽为20M。
可选的，预设比例为80％，即要求发送信号的传输带宽要占用频域带宽的80％以上。
如图6所示，以第一子载波间隔为30KHz，物理随机接入信道序列的长度为139为例进行举例说明。第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置包括4个频域单元。4个频域单元对应4个物理随机接入信道序列，即每个频域单元对应一个物理随机接入序列。
一、至少两个频域单元包括时域位置相同的两个频域单元，两个频域单元在频域带宽内按照对称轴呈两端分布且至少占用频域带宽的预设比例。
如图6所示，对称轴位于频域带宽的中间位置。
两个频域单元在频域带宽内按照对称轴呈两端分布，即一个频域单元分布在频域带宽的首部，一个频域单元分部在频域带宽的尾部。
两个频域单元至少占用频域带宽的预设比例80％。
二、至少两个频域单元包括时域位置相同的四个频域单元，四个频域单元在频域带宽内均匀分布，且至少占用频域带宽的预设比例。
如图6所示，4个频域单元在频域带宽内呈均匀分布，即4个频域单元等间隔的分布在频域带宽内。
4个频域单元至少占用频域带宽的预设比例80％。
图7示出了本公开一个示例性实施例提供的无线信号的传输装置的框图，该装置包括：接收模块701和确定模块702；
接收模块701，被配置为接收接入网设备配置的样式标识，样式标识用于配置物理随机接入信道在频域上与第一子载波间隔对应的第一物理资源配置样式；
确定模块702，被配置为确定目标小区的第二子载波间隔；
确定模块702，被配置为根据样式标识和第二子载波间隔，确定物理随机接入信道在频域上与第二子载波间隔对应的第二物理资源配置样式。
在一个示例中，物理随机接入信道所占用的物理带宽固定，即第一物理资源配置样式和第二物理资源配置样式所占用的频域带宽相同；且，第一物理资源配置样式和第二物理资源配置样式在频域带宽中所占用的相对位置相同。
在一个示例中，确定模块702，被配置为根据样式标识确定第一子载波间隔和第一物理资源配置样式对应的第一频域参数；确定模块702，被配置为根据第一子载波间隔和第二子载波间隔之间的关系，对第一物理资源配置样式对应的第一频域参数进行转换，得到第二物理资源配置样式对应的第二频域参数。
在一个示例中，第一频域参数包括如下参数中的至少一个：第一物理资源配置样式占用的物理资源块PRB数量、第一物理资源配置样式中发送的物理随机接入信道序列的重复个数、第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置；第二频域参数包括如下参数中的至少 一个：第二物理资源配置样式占用的PRB数量、第二物理资源配置样式中发送的物理随机接入信道序列的重复个数、第二物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第二位置。
在一个示例中，第一子载波间隔等于第二子载波间隔的2 n；样式标识为第一子载波间隔配置的第一物理资源配置样式；第一物理资源配置样式所占用的PRB数目是第二物理资源配置样式所占用的PRB数目的1/2 n；第一物理资源配置样式中发送的物理随机接入信道序列的第一数量是第二物理资源配置样式中发送的物理随机接入信道序列的第二数量的1/2 n。
在一个示例中，第一物理资源配置样式中发送的物理随机接入信道序列在频域带宽中所占据的第一位置包括:至少两个频域单元，至少两个频域单元与物理随机接入信道序列呈一一对应关系，且每个频域单元中发送的物理随机接入信道序列重复；至少两个频域单元按照对称轴呈轴对称图案，物理随机接入信道序列在至少两个频域单元中的发送位置按照对称轴呈两边对齐、居中对齐或单侧对齐。
在一个示例中，至少两个频域单元包括时域位置相同的四个频域单元，四个频域单元在频域带宽内均匀分布，且至少占用频域带宽的预设比例；或，至少两个频域单元包括时域位置相同的两个频域单元，两个频域单元在频域带宽内按照对称轴呈两端分布且至少占用频域带宽的预设比例。
在一个示例中，第一子载波间隔为15kHz、30kHz、60kHz的一个，第二子载波间隔为15kHz、30kHz、60kHz的另一个。
在一个示例中，接收模块701，被配置为接收接入网设备为目标小区配置的子载波SCS标识，SCS标识用于指示第二子载波间隔；或，确定模块702，被配置为确定目标小区预定义的第二子载波间隔。
图8示出了本公开一个示例性实施例提供的终端的结构示意图，该终端包括：处理器101、接收器102、发射器103、存储器104和总线105。
处理器101包括一个或者一个以上处理核心，处理器101通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器102和发射器103可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器104通过总线105与处理器101相连。
存储器104可用于存储至少一个指令，处理器101用于执行该至少一个指令，以实现上述方法实施例中的各个步骤。
此外，存储器104可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
在示例性实施例中，还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现上述各个方法实施例提供的由通信设备执行的物理随机接入信道的配置方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本公开的可选实施例，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (20)

  1. 一种物理随机接入信道的配置方法，其特征在于，所述方法包括：
    接收接入网设备配置的样式标识，所述样式标识用于配置所述物理随机接入信道在频域上与第一子载波间隔对应的第一物理资源配置样式；
    确定目标小区的第二子载波间隔；
    根据所述样式标识和所述第二子载波间隔，确定所述物理随机接入信道在频域上与所述第二子载波间隔对应的第二物理资源配置样式。
  2. 根据权利要求1所述的方法，其特征在于，
    所述物理随机接入信道所占用的物理带宽固定，即所述第一物理资源配置样式和所述第二物理资源配置样式所占用的频域带宽相同；
    且，
    所述第一物理资源配置样式和所述第二物理资源配置样式在所述频域带宽中所占用的相对位置相同。
  3. 根据权利要求1所述的方法，其特征在于，所述根据所述样式标识和所述第二子载波间隔，确定所述物理随机接入信道在频域上与所述第二子载波间隔对应的第二物理资源配置样式，包括：
    根据所述样式标识确定所述第一子载波间隔和所述第一物理资源配置样式对应的第一频域参数；
    根据所述第一子载波间隔和所述第二子载波间隔之间的关系，对所述第一物理资源配置样式对应的第一频域参数进行转换，得到所述第二物理资源配置样式对应的第二频域参数。
  4. 根据权利要求3所述的方法，其特征在于，
    所述第一频域参数包括如下参数中的至少一个：所述第一物理资源配置样式占用的物理资源块PRB数量、所述第一物理资源配置样式中发送的物理随机接入信道序列的重复个数、所述第一物理资源配置样式中发送的所述物理随机接入信道序列在所述频域带宽中所占据的第一位置；
    所述第二频域参数包括如下参数中的至少一个：所述第二物理资源配置样 式占用的PRB数量、所述第二物理资源配置样式中发送的物理随机接入信道序列的重复个数、所述第二物理资源配置样式中发送的所述物理随机接入信道序列在所述频域带宽中所占据的第二位置。
  5. 根据权利要求4所述的方法，其特征在于，所述第一子载波间隔等于所述第二子载波间隔的2 n；所述样式标识为所述第一子载波间隔配置的第一物理资源配置样式；
    所述第一物理资源配置样式所占用的PRB数目是所述第二物理资源配置样式所占用的PRB数目的1/2 n；
    所述第一物理资源配置样式中发送的物理随机接入信道序列的第一数量是所述第二物理资源配置样式中发送的物理随机接入信道序列的第二数量的1/2 n。
  6. 根据权利要求4所述的方法，其特征在于，所述第一物理资源配置样式中发送的所述物理随机接入信道序列在所述频域带宽中所占据的第一位置包括:
    至少两个频域单元，所述至少两个频域单元与所述物理随机接入信道序列呈一一对应关系，且每个所述频域单元中发送的所述物理随机接入信道序列重复；
    所述至少两个频域单元按照对称轴呈轴对称图案，所述物理随机接入信道序列在所述至少两个频域单元中的发送位置按照所述对称轴呈两边对齐、居中对齐或单侧对齐。
  7. 根据权利要求6所述的方法，其特征在于，
    所述至少两个频域单元包括时域位置相同的四个频域单元，所述四个频域单元在所述频域带宽内均匀分布，且至少占用所述频域带宽的预设比例；
    或，
    所述至少两个频域单元包括时域位置相同的两个频域单元，所述两个频域单元在所述频域带宽内按照所述对称轴呈两端分布且至少占用所述频域带宽的预设比例。
  8. 根据权利要求1至7任一所述的方法，其特征在于，
    所述第一子载波间隔为15kHz、30kHz、60kHz的一个，所述第二子载波间隔为15kHz、30kHz、60kHz的另一个。
  9. 根据权利要求1至7任一所述的方法，其特征在于，所述确定目标小区的第二子载波间隔，包括：
    接收所述接入网设备为所述目标小区配置的子载波SCS标识，所述SCS标识用于指示所述第二子载波间隔；
    或，
    确定所述目标小区预定义的第二子载波间隔。
  10. 一种物理随机接入信道的配置装置，其特征在于，所述装置包括：接收模块和确定模块；
    所述接收模块，被配置为接收接入网设备配置的样式标识，所述样式标识用于配置所述物理随机接入信道在频域上与第一子载波间隔对应的第一物理资源配置样式；
    所述确定模块，被配置为确定目标小区的第二子载波间隔；
    所述确定模块，被配置为根据所述样式标识和所述第二子载波间隔，确定所述物理随机接入信道在频域上与所述第二子载波间隔对应的第二物理资源配置样式。
  11. 根据权利要求10所述的装置，其特征在于，
    所述物理随机接入信道所占用的物理带宽固定，即所述第一物理资源配置样式和所述第二物理资源配置样式所占用的频域带宽相同；
    且，
    所述第一物理资源配置样式和所述第二物理资源配置样式在所述频域带宽中所占用的相对位置相同。
  12. 根据权利要求10所述的装置，其特征在于，
    所述确定模块，被配置为根据所述样式标识确定所述第一子载波间隔和所述第一物理资源配置样式对应的第一频域参数；
    所述确定模块，被配置为根据所述第一子载波间隔和所述第二子载波间隔之间的关系，对所述第一物理资源配置样式对应的第一频域参数进行转换，得到所述第二物理资源配置样式对应的第二频域参数。
  13. 根据权利要求12所述的装置，其特征在于，
    所述第一频域参数包括如下参数中的至少一个：所述第一物理资源配置样式占用的物理资源块PRB数量、所述第一物理资源配置样式中发送的物理随机接入信道序列的重复个数、所述第一物理资源配置样式中发送的所述物理随机接入信道序列在所述频域带宽中所占据的第一位置；
    所述第二频域参数包括如下参数中的至少一个：所述第二物理资源配置样式占用的PRB数量、所述第二物理资源配置样式中发送的物理随机接入信道序列的重复个数、所述第二物理资源配置样式中发送的所述物理随机接入信道序列在所述频域带宽中所占据的第二位置。
  14. 根据权利要求13所述的装置，其特征在于，所述第一子载波间隔等于所述第二子载波间隔的2 n；所述样式标识为所述第一子载波间隔配置的第一物理资源配置样式；
    所述第一物理资源配置样式所占用的PRB数目是所述第二物理资源配置样式所占用的PRB数目的1/2 n；
    所述第一物理资源配置样式中发送的物理随机接入信道序列的第一数量是所述第二物理资源配置样式中发送的物理随机接入信道序列的第二数量的1/2 n。
  15. 根据权利要求13所述的装置，其特征在于，所述第一物理资源配置样式中发送的所述物理随机接入信道序列在所述频域带宽中所占据的第一位置包括:
    至少两个频域单元，所述至少两个频域单元与所述物理随机接入信道序列呈一一对应关系，且每个所述频域单元中发送的所述物理随机接入信道序列重复；
    所述至少两个频域单元按照对称轴呈轴对称图案，所述物理随机接入信道序列在所述至少两个频域单元中的发送位置按照所述对称轴呈两边对齐、居中 对齐或单侧对齐。
  16. 根据权利要求15所述的装置，其特征在于，
    所述至少两个频域单元包括时域位置相同的四个频域单元，所述四个频域单元在所述频域带宽内均匀分布，且至少占用所述频域带宽的预设比例；
    或，
    所述至少两个频域单元包括时域位置相同的两个频域单元，所述两个频域单元在所述频域带宽内按照所述对称轴呈两端分布且至少占用所述频域带宽的预设比例。
  17. 根据权利要求10至16任一所述的装置，其特征在于，
    所述第一子载波间隔为15kHz、30kHz、60kHz的一个，所述第二子载波间隔为15kHz、30kHz、60kHz的另一个。
  18. 根据权利要求10至16任一所述的装置，其特征在于，
    所述接收模块，被配置为接收所述接入网设备为所述目标小区配置的子载波SCS标识，所述SCS标识用于指示所述第二子载波间隔；
    或，
    所述确定模块，被配置为确定所述目标小区预定义的第二子载波间隔。
  19. 一种终端，其特征在于，所述终端包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至9任一所述的物理随机接入信道的配置方法。
  20. 一种计算机可读存储介质，其特征在于，所述可读存储介质中存储有可执行指令，所述可执行指令由所述处理器加载并执行以实现如权利要求1至9任一所述的物理随机接入信道的配置方法。
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