WO2018228368A1 - 随机接入过程前导码重传计数的方法及终端 - Google Patents

随机接入过程前导码重传计数的方法及终端 Download PDF

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Publication number
WO2018228368A1
WO2018228368A1 PCT/CN2018/090803 CN2018090803W WO2018228368A1 WO 2018228368 A1 WO2018228368 A1 WO 2018228368A1 CN 2018090803 W CN2018090803 W CN 2018090803W WO 2018228368 A1 WO2018228368 A1 WO 2018228368A1
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Prior art keywords
preamble
random access
power
counter
retransmission
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PCT/CN2018/090803
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English (en)
French (fr)
Inventor
陈力
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP18818907.0A priority Critical patent/EP3641475A4/en
Priority to US16/623,379 priority patent/US11140719B2/en
Publication of WO2018228368A1 publication Critical patent/WO2018228368A1/zh
Priority to US17/410,152 priority patent/US11700647B2/en
Priority to US17/410,114 priority patent/US11700646B2/en

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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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1858Transmission or retransmission of more than one copy of acknowledgement message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/04Error control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/362Aspects of the step size
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367Power values between minimum and maximum limits, e.g. dynamic range
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/008Transmission of channel access control information with additional processing of random access related information at receiving side
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method and a terminal for preamble retransmission counting of a random access procedure.
  • RACH Random Access Channel
  • PAGING paging
  • the random access triggering conditions include: 1. initial access in RRC_IDLE; 2. initial access when the wireless link is disconnected; 3. random access when switching; 4, when random access procedure is required in RRC_CONNECTED state, To the downlink data, for example, when the uplink synchronization state is "non-synchronous"; 5.
  • the random access procedure is required in the RRC_CONNECTED state, uplink data is received, such as when the uplink synchronization state is "unsynchronized" or no PUCCH resource is available for scheduling.
  • the Random Access process includes a Contention-Free/Non-contention-based and Contention-based random access procedure. among them,
  • the non-competitive random access process consists of two steps:
  • the terminal sends a random access preamble (preamble) to the base station, also known as message one (msg.1);
  • the terminal receives a random access response (RAR) fed back by the base station, also called message 2 (msg. 2);
  • RAR random access response
  • the terminal sends a random access preamble (preamble) to the base station, also known as message one (msg.1);
  • the terminal receives a random access response (RAR) fed back by the base station, also called message 2 (msg. 2);
  • RAR random access response
  • the terminal sends a contention resolution request to the base station, also called message three (msg.3);
  • the terminal receives the contention resolution of the base station, also known as message four (msg.4).
  • PREAMBLE_TRANSMISSION_COUNTER a preamble transmission counter, is used to count the number of preamble retransmissions and for power climb.
  • This counter is reset to 1 each time the random access procedure is initialized.
  • the counter is incremented by one.
  • the MAC layer indicates an upper layer random access problem or random access failure.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_TRANSMISSION_COUNTER—1)*powerRampingStep;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • PREAMBLE_TRANSMISSION_COUNTER represents the value of the current preamble transmission counter
  • powerRampingStep represents the power climb step.
  • the same counter is used to count the power climb count and the number of transmissions of the preamble, that is, the preamble transmission counter is used for both the count of the number of power climbs and the count of the number of preamble retransmissions.
  • Massive MIMO is introduced in the 5G new air interface (NR) system, so that there is a concept of a beam.
  • UE User Equipment
  • UE can select different beams for each retransmission.
  • An embodiment of the present disclosure provides a method for preamble retransmission counting of a random access procedure, including:
  • the random access procedure it is detected that the random access response is not correctly received or the contention resolution fails, and the number of preamble retransmissions and/or the number of times the power of the preamble is climbed is counted according to the set counter.
  • the embodiment of the present disclosure further provides a terminal, including:
  • the processing module is configured to detect, during the random access process, that the random access response is not correctly received or the contention failure fails, and perform counting of the number of preamble retransmissions and/or the number of times the power of the preamble is transmitted according to the set counter.
  • Embodiments of the present disclosure also provide a terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to implement the random access process described above The steps of the method of preamble retransmission counting.
  • the embodiment of the present disclosure further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and when the computer program is executed by the processor, implementing the random access procedure preamble retransmission count The steps of the method.
  • FIG. 1 is a schematic flowchart diagram of a method for preamble retransmission counting of a random access procedure according to an embodiment of the present disclosure
  • FIG. 2 is a block diagram showing a terminal of an embodiment of the present disclosure
  • FIG. 3 is a block diagram showing the structure of a terminal according to an embodiment of the present disclosure.
  • the present disclosure is directed to the problem that when a single counter is used for both power climb and preamble transmission counting, there is a function that cannot simultaneously satisfy the power climb and the preamble transmission count, and the reliability of the NR system communication cannot be guaranteed, and a random access procedure preamble is provided.
  • Method and terminal for code retransmission counting are provided.
  • a method for preamble retransmission counting of a random access procedure includes:
  • Step 101 In the random access process, detecting that the random access response is not received correctly (No RAR is received) or contention resolution Fail, performing preamble retransmission times and/or sending preamble according to the set counter. The count of the number of power climbs of the code.
  • the counter in this embodiment may include a preamble transmission counter (PREAMBLE_TRANSMISSION_COUNTER) set for the terminal, a beam preamble retransmission counter (PREAMBLE_TRANSMISSION_COUNTER_BEAM) set for the beam, and a power climb counter set for the power climb.
  • PREAMBLE_TRANSMISSION_COUNTER a preamble transmission counter
  • PREAMBLE_TRANSMISSION_COUNTER_BEAM beam preamble retransmission counter
  • a power climb counter set for the power climb.
  • preamble transmission counter preamble retransmission beam switching counter
  • PREAMBLE_BEAM_SWITCH_COUNTER preamble retransmission beam switching counter
  • PREAMBLE_TRANSMISSION_COUNTER_PL power level preamble transmission counter
  • preamble transmission counter, beam preamble retransmission The counter, the power climb counter, and the preamble retransmission beam switching counter (or the power level preamble transmission counter) belong to different types of counters, and the preamble retransmission beam switching counter and the power level preamble transmission counter are counters that cannot exist at the same time. .
  • the counter When only one type of counter is set in the terminal, the counter performs 1 processing when the random access response (RAR) message is not correctly received or the contention resolution fails; or
  • the counter performs a plus process when the RAR message is not correctly received or the contention resolution fails, and the physical layer indicates that the medium access control MAC layer has a power climb pause indication.
  • the preamble transmission counter is set for each terminal, that is, the terminal only includes one preamble transmission counter, and the preamble transmission counter is reset to 1 or 0 every time the random access procedure is initialized or reset. And the preamble transmission counter does not receive the RAR message within the preset time, or the preamble transmission counter is incremented by 1 when the contention failure fails.
  • the preset time refers to the RAR. Window, the RAR time window.
  • the medium access control MAC layer indicates the upper layer random access problem or indicates that the random access procedure fails (ie: Random access failed).
  • the upper layer herein refers to a Radio Link Control (RLC), a Radio Resource Control (RRC), a network layer, an application layer, and the like located above the physical layer.
  • RLC Radio Link Control
  • RRC Radio Resource Control
  • the transmission power is increased by one step
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal (the base station configures the terminal by using a dedicated radio resource control (RRC) message, RRC configuration, RRC reconfiguration, system message (SI), or broadcast message) or the step size is The default rule (that is, the agreement of the agreement) is determined.
  • RRC radio resource control
  • SI system message
  • the terminal performs random access preamble transmission according to the maximum power
  • the power climb suspension indication is indicated by the physical layer PHY of the terminal to the MAC layer, and the power climb suspension indication may also have other physical layer trigger conditions, such as when a random access procedure is temporarily stopped (this) The scene may occur during random access conflicts).
  • the beam preamble retransmission counter is set for the beam, that is, the terminal may include only one beam preamble retransmission counter, or may include multiple beam preamble retransmission counters (ie, one beam preamble may be set for each beam).
  • the code retransmission counter may also set a beam preamble retransmission counter for certain beams, and the beam preamble retransmission counter is reset to 1 or 0 each time the random access procedure is initialized or reset.
  • the counting rule of the beam preamble retransmission counter is set in one or more of the following manners.
  • the beam preamble retransmission counter based on the first beam configuration is added to the 1st processing;
  • the random access preamble (ie, msg.1) is sent on a certain beam.
  • the count value of the beam preamble retransmission counter corresponding to the beam is incremented by one.
  • the terminal sends msg.3 on a certain beam.
  • the count value of the beam preamble retransmission counter corresponding to the beam is incremented by one.
  • the beam preamble retransmission counter based on the third beam configuration is incremented by one;
  • the method further includes:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the beam that sent the random access preamble last time is not used as the first candidate beam for retransmitting the next random access preamble.
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the next random access preamble within a preset time or a preset number of times.
  • the beam used in the last retransmission is not used for the next retransmission within a certain period of time or a certain number of retransmissions.
  • the terminal may further select to restart the beam preamble retransmission counter.
  • the beam that sent the random access preamble last time is not used as the second candidate beam for retransmitting the next random access preamble.
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the next random access preamble.
  • the beam used in the last retransmission is not used for the next retransmission within the same power level or preset power level.
  • the terminal may further select to restart the beam preamble retransmission counter.
  • the specific usage of the multiple beam preamble retransmission counters is:
  • the first preset number may refer to the number of beam preamble retransmission counters corresponding to all the beams of the terminal, and may also refer to the number of beam preamble retransmission counters corresponding to certain beams of the terminal.
  • the second preset number may refer to the number of beam preamble retransmission counters corresponding to all the beams of the terminal, and may also refer to the number of beam preamble retransmission counters corresponding to certain beams of the terminal.
  • the transmission power is increased by one step.
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the method further includes:
  • the terminal performs random access preamble transmission according to the maximum power.
  • the power climb counter is set for the number of power climbs that are reset to 1 or 0 each time the random access procedure is initialized or reset.
  • the power climb counter performs Add 1 to handle
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter can be set for each terminal, or can be set for the beam.
  • the power climb counter is set corresponding to the beam
  • each retransmission is performed.
  • the power climb counter corresponding to the current beam is reset to the value of the power climb counter corresponding to the transmission beam of the previous transmission random access preamble. This ensures that the value of the power climb counter remains unchanged when the terminal is changing beams.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, obtain the transmit power of the retransmission after the climb;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal (the base station configures the terminal by using a dedicated radio resource control (RRC) message, RRC configuration, RRC reconfiguration, system message (SI), or broadcast message) or the power.
  • the climb step is determined by a preset rule (ie, a contractual agreement).
  • the method further includes:
  • the terminal performs random access preamble transmission according to the maximum power.
  • the media access control is performed.
  • the MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the preamble retransmission beam switching counter or power level preamble transmission counter is reset to 1 or 0 each time the random access procedure is initialized or reset.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is incremented by one.
  • the retransmission of the random access preamble is performed by switching to a beam that is within the same power level or a preset power level as the current beam and that does not pass the random access preamble.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter needs to be reset.
  • the upper layer random access problem is indicated by the MAC layer or the random access procedure is indicated. failure.
  • the upper layer random access problem is indicated by the MAC layer or the random access procedure is failed.
  • Preamble transmission counter and beam preamble retransmission counter are set in the terminal.
  • preamble transmission counter and the beam preamble retransmission counter are reset to 1 or 0 each time the random access procedure is initialized or reset.
  • the counting rule of the beam preamble retransmission counter is set in one or more of the following manners.
  • the beam preamble retransmission counter based on the first beam configuration is added to the 1st processing;
  • the beam preamble retransmission counter based on the third beam configuration is incremented by one;
  • the count value of the beam preamble retransmission counter reaches the second preset maximum number of transmissions Max2 or Max2+1, it should also include:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the upper layer random access problem is indicated by the MAC layer or the random access procedure is failed.
  • the setting of the random access preamble retransmission power climb is: if the beams used for the two adjacent preamble transmissions are the same, the transmission power is increased by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the method further includes:
  • the terminal performs random access preamble transmission according to the maximum power.
  • the medium access control MAC layer indicates the upper layer random access problem or indicates that the random access procedure fails;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the medium access control MAC layer indicates the upper layer random access problem or indicates the random access procedure. failure.
  • the preamble transmission counter and the power climb counter are set in the terminal.
  • preamble transmission counter and the power climb counter are reset to 1 or 0 each time the random access procedure is initialized or reset.
  • the first step is performed.
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the setting of the random access preamble retransmission power climb may be performed in the following manner: when the preamble transmission counter retransmits the preamble, if the beams used by the two adjacent preamble transmissions are the same, Increase the transmit power by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the setting of the power climb counter is: when there is one of the RAR message, the contention resolution failure, and the preamble retransmission that are not correctly received within the preset time, and the two preamble transmissions are adjacent.
  • the power climb counter is incremented by one; or
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the transmission beam corresponding to the previous transmission random access preamble. The value of the power climb counter.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, obtain the transmit power of the retransmission after the climb;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the method further includes:
  • the terminal performs random access preamble transmission according to the maximum power.
  • the beam preamble retransmission counter and the power climb counter are reset to 1 or 0 each time the random access procedure is initialized or reset.
  • the beam preamble retransmission counter based on the first beam configuration is added to 1;
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the method further includes:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random indication is indicated. The access process failed; or
  • the upper layer random access problem is indicated by the medium access control MAC layer or random access is indicated. The process failed.
  • the specific settings for the power climb counter are:
  • the power climb counter is incremented by one. ;
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the power climb counter corresponding to the transmission beam of the previous transmission random access preamble. value.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, obtain the transmit power of the retransmission after the climb;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the method further includes:
  • the terminal performs random access preamble transmission according to the maximum power.
  • the preamble transmission counter, the beam preamble retransmission counter and the power climb counter are set in the terminal.
  • the preamble transmission counter, the beam preamble retransmission counter and the power climb counter are reset to 1 or 0 each time the random access procedure is initialized or reset.
  • the preamble transmission counter performs the addition processing when the random access response RAR message is not correctly received within a preset time or the contention resolution fails.
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the setting of the random access preamble retransmission power climb may be performed in the following manner: when the preamble transmission counter retransmits the preamble, if the two adjacent preamble transmissions use the same beam , the transmission power is increased by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the setting of the beam preamble retransmission counter is:
  • the beam preamble retransmission counter based on the first beam configuration is added to 1;
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the method further includes:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random indication is indicated. The access process failed; or
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random connection is indicated. The entry process failed.
  • the setting for the power climb counter is:
  • the power climb counter is incremented by one. ;
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the power climb counter corresponding to the transmission beam of the previous transmission random access preamble. value.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, obtain the transmit power of the retransmission after the climb;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the method further includes:
  • the terminal performs random access preamble transmission according to the maximum power.
  • each implementation may further include: a preamble retransmission beam switching counter or a power level preamble transmission counter.
  • each counter can realize its own independent function, and when the power climb counter is set in the terminal, the determination of the climb power is preferably performed in combination with the power climb counter.
  • the number of preamble retransmissions and/or the number of power climbs of the preamble are counted according to the set counter. In this way, the problem that the functions of the power climb and the preamble transmission count cannot be simultaneously satisfied when using a single counter for power climb and preamble transmission counting is avoided, and the reliability of the NR system communication is ensured by the manner of the embodiment of the present disclosure.
  • the terminal of the embodiment of the present disclosure includes:
  • the processing module is configured to detect, during the random access process, that the random access response is not correctly received or the contention failure fails, and perform counting of the number of preamble retransmissions and/or the number of times the power of the preamble is transmitted according to the set counter.
  • the set counter includes: one type of counter;
  • the counter performs an addition process when the random access response RAR message is not correctly received or the contention resolution fails;
  • the counter performs a plus process when the RAR message is not correctly received or the contention resolution fails, and the physical layer indicates that the medium access control MAC layer has a power climb pause indication.
  • the counter includes: a preamble transmission counter.
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the preamble transmission counter performs retransmission counting on the preamble, if the beams used in the two adjacent preamble transmissions are the same, the transmission power is increased by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the processing module is used to:
  • the random access preamble transmission is performed according to the maximum power.
  • the counter includes: a beam preamble retransmission counter.
  • the beam preamble retransmission counter based on the first beam configuration is added by 1;
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the counting value of the beam preamble retransmission counter reaches a second preset maximum number of transmissions Max2 or Max2+1, and the processing module is configured to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the candidate beam of the next random access preamble.
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the next random access preamble within a preset time or a preset number of times.
  • the beam preamble retransmission counter is restarted.
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the candidate beam of the next random access preamble.
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the next random access preamble.
  • the beam preamble retransmission counter is restarted.
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random indication is indicated. The access process failed.
  • the upper layer random access problem is indicated by the medium access control MAC layer or Indicates that the random access procedure failed.
  • the method for retransmitting the preamble of the random access procedure further includes:
  • the transmission power is increased by one step.
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the processing module is configured to:
  • the random access preamble transmission is performed according to the maximum power.
  • the counter includes: a power climb counter.
  • the power climb counter performs Add 1 to handle
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the power climb counter corresponding to the transmission beam of the previous transmission random access preamble. value.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, the transmit power for retransmission after the climb is obtained;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the processing module is configured to:
  • the random access preamble transmission is performed according to the maximum power.
  • the method for retransmitting the preamble of the random access procedure further includes:
  • the upper layer random access is indicated by the medium access control MAC layer. Enter the problem or indicate that the random access procedure failed.
  • the counter includes: a preamble retransmission beam switching counter or a power level preamble transmission counter.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is incremented by one.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter reaches a preset maximum number of times of counting Max4 or Max4+1, and the processing module is configured to:
  • the random access preamble When the random access preamble is retransmitted next time, it switches to the beam that has not passed the random access preamble to perform retransmission of the random access preamble.
  • the implementation manner of switching to a beam that has not passed the random access preamble to perform retransmission of the random access preamble is:
  • the retransmission of the random access preamble is performed by switching to a beam that is within the same power level or a preset power level as the current beam and that does not pass the random access preamble.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is reset.
  • the medium access control MAC layer is used to indicate the upper layer random access problem or the random connection is indicated. The entry process failed.
  • the set counter includes: at least two types of counters;
  • the medium access control MAC layer When the counter reaches the maximum number of counts, the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the at least two types of counters include: a preamble transmission counter and a beam preamble retransmission counter.
  • the beam preamble retransmission counter based on the first beam configuration is added by 1;
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the processing module is configured to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the transmission power is increased by one step
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the processing module is configured to:
  • the random access preamble transmission is performed according to the maximum power.
  • the method for retransmitting the preamble of the random access procedure further includes:
  • the medium access control MAC layer indicates the upper layer random access problem or indicates that the random access procedure fails;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the medium access control MAC layer indicates the upper layer random access problem or indicates the random access procedure. failure.
  • the at least two types of counters include: a preamble transmission counter and a power climb counter.
  • the first step is performed.
  • the MAC layer is instructed to indicate an upper layer random access problem or the random access procedure fails.
  • the transmission power is increased by one step
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the power climb counter performs Add 1 to handle
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the power climb corresponding to the transmission beam of the previous transmission random access preamble. The value of the counter.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, the transmit power for retransmission after the climb is obtained;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the processing module is configured to:
  • the random access preamble transmission is performed according to the maximum power.
  • the at least two types of counters include: a beam preamble retransmission counter and a power climb counter.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, the transmit power for retransmission after the climb is obtained;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the power climb counter performs Add 1 to handle
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the power climb counter corresponding to the transmission beam of the previous transmission random access preamble. value.
  • the beam preamble retransmission counter based on the first beam configuration is added by 1;
  • the beam preamble retransmission counter based on the third beam configuration is incremented by one, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the processing module is configured to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random indication is indicated. The access process failed; or
  • the upper layer random access problem is indicated by the medium access control MAC layer or random access is indicated. The process failed.
  • the at least two types of counters include: a preamble transmission counter, a beam preamble retransmission counter, and a power climb counter.
  • the first step is performed.
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the preamble transmission counter performs retransmission counting on the preamble, if the beams used in the two adjacent preamble transmissions are the same, the transmission power is increased by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the beam preamble retransmission counter based on the first beam configuration is added by 1;
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the counting value of the beam preamble retransmission counter reaches a second preset maximum number of transmissions Max2 or Max2+1, and the processing module is configured to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random indication is indicated. The access process failed; or
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random connection is indicated. The entry process failed.
  • the power climb counter performs Add 1 to handle
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the power climb counter corresponding to the transmission beam of the previous transmission random access preamble. value.
  • PREAMBLE_RECEIVED_TARGET_POWER preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER-1)*powerRampingStep, the transmit power for retransmission after the climb is obtained;
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the processing module is configured to:
  • the random access preamble transmission is performed according to the maximum power.
  • the at least two types of counters further include: a preamble retransmission beam switching counter or a power level preamble transmission counter.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is incremented by one.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter reaches a preset maximum number of times of counting Max4 or Max4+1, and the processing module is configured to:
  • the random access preamble When the random access preamble is retransmitted next time, it switches to the beam that has not passed the random access preamble to perform retransmission of the random access preamble.
  • the implementation manner of switching to a beam that has not passed the random access preamble to perform retransmission of the random access preamble is:
  • the retransmission of the random access preamble is performed by switching to a beam that is within the same power level or a preset power level as the current beam and that does not pass the random access preamble.
  • the medium access control MAC layer is used to indicate the upper layer random access problem or the random connection is indicated. The entry process failed.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is reset.
  • the terminal embodiment is a terminal corresponding to the foregoing method for applying the preamble retransmission count of the random access procedure on the terminal side, and all implementation manners of the foregoing embodiments are applicable to the terminal embodiment, Can achieve the same technical effect.
  • An embodiment of the present disclosure further provides a terminal, including: a memory, a processor, and a computer program stored on the memory and operable on the processor, where the computer program is implemented by the processor to implement the foregoing application to the terminal side
  • a terminal including: a memory, a processor, and a computer program stored on the memory and operable on the processor, where the computer program is implemented by the processor to implement the foregoing application to the terminal side
  • the embodiment of the present disclosure further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and when the computer program is executed by the processor, implementing the random access process applied to the terminal side
  • a computer readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • FIG. 3 is a structural block diagram of a terminal according to an embodiment of the present disclosure.
  • the application entity of the method for preamble retransmission counting of the random access procedure of the present disclosure is specifically described below in conjunction with the figure.
  • the terminal 300 shown in FIG. 3 includes at least one processor 301, a memory 302, at least one network interface 304, and a user interface 303.
  • the various components in terminal 300 are coupled together by a bus system 305.
  • the bus system 305 is used to implement connection communication between these components.
  • the bus system 305 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as bus system 305 in FIG.
  • the user interface 303 may include a display, a keyboard, or a pointing device (eg, a mouse, a track ball, a touch pad, or a touch screen, etc.).
  • a pointing device eg, a mouse, a track ball, a touch pad, or a touch screen, etc.
  • the memory 302 in an embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM direct memory bus random access memory
  • memory 302 stores elements, executable modules or data structures, or a subset thereof, or their extended set: operating system 3021 and application 3022.
  • the operating system 3021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 3022 includes various applications, such as a media player (Media Player), a browser, and the like, for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 3022.
  • the mobile terminal 300 further includes: a computer program stored on the memory 302 and executable on the processor 301, and specifically, may be a computer control program in the application 3022, and the computer program is used by the processor 301.
  • a computer program stored on the memory 302 and executable on the processor 301, and specifically, may be a computer control program in the application 3022, and the computer program is used by the processor 301.
  • the following steps are implemented: in the random access process, when the random access response is not correctly received or the contention failure is detected, the number of preamble retransmissions and/or the number of power climbs of the preamble are counted according to the set counter.
  • Processor 301 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 301 or an instruction in a form of software.
  • the processor 301 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional computer readable storage medium of the art, such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the computer readable storage medium is located in a memory 302, and the processor 301 reads the information in the memory 302 and, in conjunction with its hardware, performs the steps of the above method.
  • the computer readable storage medium stores a computer program that, when executed by the processor 301, implements the steps described below.
  • the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described herein In an electronic unit or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device Digital Signal Processing Equipment
  • PLD programmable Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the techniques described herein can be implemented by modules (eg, procedures, functions, and so on) that perform the functions described herein.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the set counter comprises: a type of counter; the computer program is implemented by the processor 301: the counter performs an additional processing when the random access response RAR message is not correctly received or the contention resolution fails; or
  • the counter performs a plus process when the RAR message is not correctly received or the contention resolution fails, and the physical layer indicates that the medium access control MAC layer has a power climb pause indication.
  • the counter includes: a preamble transmission counter, and when the computer program is executed by the processor 301, the counter value of the preamble transmission counter reaches a first preset maximum number of transmissions Max1 or Max1+1, and then passes through the medium.
  • the access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the preamble transmission counter when the preamble transmission counter retransmits the preamble, if the beams used by the two preamble transmissions are the same, the transmission power is increased by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the computer program is implemented by the processor 301 to:
  • the random access preamble transmission is performed according to the maximum power.
  • the counter includes: a beam preamble retransmission counter.
  • the beam preamble retransmission counter based on the first beam configuration is performed. Add 1 to handle; or
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the count value of the beam preamble retransmission counter reaches a second preset maximum number of transmissions Max2 or Max2+1, and the computer program is implemented by the processor 301 to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the candidate beam of the random access preamble is implemented as follows:
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the next random access preamble within a preset time or a preset number of times.
  • the beam preamble retransmission counter is restarted when a preset time or a preset number of times is reached.
  • the candidate beam of the random access preamble is implemented as follows:
  • the beam that sent the random access preamble last time is not used as the candidate beam for retransmitting the next random access preamble.
  • the beam preamble retransmission counter is restarted after the transmit power of the terminal exceeds the same power level or a preset power level.
  • the medium access control is performed.
  • the MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the medium is passed through the medium.
  • the access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the transmission power is increased by one step
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the computer program is implemented by the processor 301: performing random access preamble transmission according to the maximum power; and/or
  • the counter includes: a power climb counter, and when the computer program is executed by the processor 301, when: there is one of failing to correctly receive the RAR message, competing resolution failure, and performing preamble retransmission within a preset time, And when the beams used in the two adjacent preamble transmissions are the same, the power climb counter is incremented by one; or
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the computer program is executed by the processor 301, when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the previous transmission random access. The value of the power climb counter corresponding to the transmit beam of the preamble.
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the computer program is implemented by the processor 301 to:
  • the random access preamble transmission is performed according to the maximum power.
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the counter includes: a preamble retransmission beam switching counter or a power level preamble transmission counter.
  • the preamble retransmission is performed when the random access preamble switching beam is retransmitted.
  • the beam switching counter or power level preamble transmission counter is incremented by one.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter reaches a preset maximum number of times of counting Max4 or Max4+1, and when the computer program is executed by the processor 301:
  • the random access preamble When the random access preamble is retransmitted next time, it switches to the beam that has not passed the random access preamble to perform retransmission of the random access preamble.
  • the implementation manner is: switching to a beam that has not passed the random access preamble to perform retransmission of the random access preamble is:
  • the retransmission of the random access preamble is performed by switching to a beam that is within the same power level or a preset power level as the current beam and that does not pass the random access preamble.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is reset.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter reaches a maximum count value, and the current transmit power of the terminal reaches a maximum transmit power, and the MAC is controlled by the medium access.
  • the layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the set counter includes: at least two types of counters; when the computer program is executed by the processor 301, the counter indicates that the upper layer random access problem or indication is indicated by the medium access control MAC layer when the maximum number of counts is reached. The random access procedure failed.
  • the at least two types of counters include: a preamble transmission counter and a beam preamble retransmission counter, and when the computer program is executed by the processor 301, when the random access preamble is transmitted on the first beam, and If the RAR message is not correctly received within the preset time, the beam preamble retransmission counter based on the first beam configuration is added to 1; or
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the count value of the beam preamble retransmission counter reaches a second preset maximum number of transmissions Max2 or Max2+1, and the computer program is implemented by the processor 301 to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the beam used by the two adjacent preamble transmissions is the same, and the transmission power is increased by one step;
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the computer program is implemented by the processor 301 to perform random access preamble transmission according to the maximum power.
  • the processor 301 when the computer program is executed by the processor 301, if the count value of the preamble transmission counter reaches the first preset maximum number of transmissions Max1 or Max1+1, the upper layer random access problem or indication is indicated by the medium access control MAC layer. The random access process failed; or
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the medium access control MAC layer indicates the upper layer random access problem or indicates the random access procedure. failure.
  • the at least two types of counters include: a preamble transmission counter and a power climb counter, and the computer program is implemented by the processor 301: the preamble transmission counter does not correctly receive random access within a preset time.
  • the preamble transmission counter does not correctly receive random access within a preset time.
  • the counter value of the preamble transmission counter reaches a first preset maximum number of transmissions Max1 or Max1+1, and the upper layer random access problem is indicated by the medium access control MAC layer. Or indicate that the random access procedure failed.
  • the preamble transmission counter when the preamble transmission counter retransmits the preamble, if the beams used by the two adjacent preamble transmissions are the same, the transmission power is increased by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the power climb counter is incremented by 1 when the beams are the same;
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the computer program is executed by the processor 301, when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the previous transmission random. The value of the power climb counter corresponding to the transmission beam of the access preamble.
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the computer program is implemented by the processor 301 to perform random access preamble transmission according to the maximum power.
  • the at least two types of counters comprise: a beam preamble retransmission counter and a power climb counter
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the power climb counter is incremented by 1 when the beams are the same;
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the computer program is executed by the processor 301, when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the previous transmission random access. The value of the power climb counter corresponding to the transmit beam of the preamble.
  • the beam preamble based on the first beam configuration is configured.
  • Retransmission counter is incremented by 1; or
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the count value of the beam preamble retransmission counter reaches a second preset maximum number of transmissions Max2 or Max2+1, and the computer program is implemented by the processor 301 to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the medium access control is performed.
  • the MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails;
  • the upper layer random access problem is indicated by the medium access control MAC layer or random access is indicated. The process failed.
  • the at least two types of counters include: a preamble transmission counter, a beam preamble retransmission counter, and a power climb counter.
  • the preamble transmission counter is at a preset time. If the random access response RAR message is not received correctly or the contention resolution fails, an additional 1 process is performed.
  • the counter value of the preamble transmission counter reaches a first preset maximum number of transmissions Max1 or Max1+1, and the upper layer random access problem is indicated by the medium access control MAC layer. Or indicate that the random access procedure failed.
  • the preamble transmission counter when the preamble transmission counter retransmits the preamble, if the beams used by the two preamble transmissions are the same, the transmission power is increased by one step; or
  • the transmit power is increased by one step
  • the step size is configured by the base station for the terminal or the step size is determined by a preset rule.
  • the beam preamble based on the first beam configuration is configured.
  • Retransmission counter is incremented by 1; or
  • the beam preamble retransmission counter based on the third beam configuration is added to the processing, or The beam preamble retransmission counter based on the third beam configuration and the beam preamble retransmission counter based on the fourth beam configuration are respectively subjected to addition processing.
  • the count value of the beam preamble retransmission counter reaches a second preset maximum number of transmissions Max2 or Max2+1, and the computer program is implemented by the processor 301 to:
  • the beam that sent the random access preamble last time is not used as a candidate beam for retransmitting the next random access preamble;
  • the medium access control MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the medium access control is performed.
  • the MAC layer indicates an upper layer random access problem or indicates that the random access procedure fails;
  • the upper layer random access problem is indicated by the medium access control MAC layer or the random connection is indicated. The entry process failed.
  • the power climb counter is incremented by 1 when the beams are the same;
  • the medium access control MAC is not received.
  • the power climb counter is incremented by one when the power climb stop indication of the layer is indicated.
  • the power climb counter when the computer program is executed by the processor 301, when the power climb counter is based on a single beam configuration, each time the beam is retransmitted, the power climb counter corresponding to the current beam is reset to the previous transmission random access. The value of the power climb counter corresponding to the transmit beam of the preamble.
  • PREAMBLE_RECEIVED_TARGET_POWER represents the target power value
  • preambleInitialReceivedTargetPower represents the original power value
  • DELTA_PREAMBLE represents the preset fixed value
  • POWER_RAMPING_COUNTER represents the value of the current power climb counter
  • powerRampingStep represents the power climb step
  • the power climb step is configured by the base station for the terminal or the power climb step is determined by a preset rule.
  • the computer program is implemented by the processor 301 to perform random access preamble transmission according to the maximum power.
  • the at least two types of counters further include: a preamble retransmission beam switching counter or a power level preamble transmission counter, and when the computer program is executed by the processor 301:
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is incremented by one when retransmitting the random access preamble switching beam.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter reaches a preset maximum number of times of counting Max4 or Max4+1, and then:
  • the random access preamble When the random access preamble is retransmitted next time, it switches to the beam that has not passed the random access preamble to perform retransmission of the random access preamble.
  • the implementation manner is: switching to a beam that has not passed the random access preamble to perform retransmission of the random access preamble is:
  • the retransmission of the random access preamble is performed by switching to a beam that is within the same power level or a preset power level as the current beam and that does not pass the random access preamble.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter reaches a maximum count value, and the current transmit power of the terminal reaches a maximum transmit power, and the MAC is controlled by the medium access.
  • the layer indicates an upper layer random access problem or indicates that the random access procedure fails.
  • the preamble retransmission beam switching counter or the power level preamble transmission counter is reset.
  • the terminal 300 can implement various processes implemented by the terminal in the foregoing embodiment. To avoid repetition, details are not described herein again.
  • the terminal in the embodiment of the present disclosure detects that the random access response is not correctly received or the contention failure fails during the random access procedure, and performs the number of preamble retransmissions and/or the number of times the power of the preamble is transmitted according to the set counter. Counting, thereby avoiding the problem that the function of power climb and preamble transmission count cannot be simultaneously satisfied when using a single counter for both power climb and preamble transmission counting, and the reliability of the NR system communication is ensured by the method of the embodiment of the present disclosure. .
  • embodiments of the disclosed embodiments can be provided as a method, apparatus, or computer program product.
  • embodiments of the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • embodiments of the present disclosure may take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • Embodiments of the present disclosure are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing terminal device to produce a machine such that instructions are executed by a processor of a computer or other programmable data processing terminal device
  • Means are provided for implementing the functions specified in one or more of the flow or in one or more blocks of the flow chart.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the instruction device implements the functions specified in one or more blocks of the flowchart or in a flow or block of the flowchart.

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Abstract

本公开提供了一种随机接入过程前导码重传计数的方法及终端,该前导码重传计数的方法,包括:在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。

Description

随机接入过程前导码重传计数的方法及终端
相关申请的交叉引用
本申请主张在2017年6月16日在中国提交的中国专利申请号No.201710459794.1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,特别涉及一种随机接入过程前导码重传计数的方法及终端。
背景技术
随机接入信道(Random Access Channel,RACH)是一种上行传输信道。RACH在整个小区内进行接收,常用于寻呼(PAGING)回答和MS主叫/登录的接入等。
随机接入触发条件包括:1、在RRC_IDLE初始接入;2、在无线链路断开时初始接入;3、切换时需要随机接入;4、RRC_CONNECTED状态下需要随机接入过程时,收到下行数据,如上行同步状态为“非同步”时;5、RRC_CONNECTED状态下需要随机接入过程时,收到上行数据,如上行同步状态为“非同步”或者没有PUCCH资源可用于调度时。
随机接入(Random Access)过程包括非竞争(Contention-free/Non-contention-based)和基于竞争(Contention-based)的随机接入过程。其中,
非竞争的随机接入过程包括两步:
1、终端向基站发送随机接入前导码(preamble),又称消息一(msg.1);
2、终端接收基站反馈的随机接入响应(RAR),又称消息二(msg.2);
基于竞争的随机接入过程以下步骤:
1、终端向基站发送随机接入前导码(preamble),又称消息一(msg.1);
2、终端接收基站反馈的随机接入响应(RAR),又称消息二(msg.2);
3、终端向基站发送竞争解决请求,又称消息三(msg.3);
4、终端接收基站的竞争解决结果,又称消息四(msg.4)。
在5G NR系统中,目前随机接入的设计中,对于随机接入前导码的每次重传,支持功率爬升(power ramping)。
在长期演进(LTE)系统中,使用PREAMBLE_TRANSMISSION_COUNTER,前导码传输计数器,来统计前导码重传的次数,以及用于功率爬升。
每次随机接入过程初始化时,重置此计数器为1。
当未正确接收到msg.2即RAR、而且没有收到底层物理层发送的功率爬升暂停指示(power ramping suspension),则计数器加1;
当竞争解决失败(Contention Resolution Fail),而且没有收到底层物理层发送的功率爬升暂停指示(power ramping suspension),则计数器加1。
在上述过程中,如果计数器达到preamble(前导码)最大发送次数+1,则MAC层指示上层随机接入问题或随机接入失败。
每次发送Preamble的功率,根据此计数器和功率爬升的步长,按如下公式计算:
PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_TRANSMISSION_COUNTER–1)*powerRampingStep;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,PREAMBLE_TRANSMISSION_COUNTER表示当前前导码传输计数器的取值,powerRampingStep表示功率爬升步长。
在LTE中,使用同一计数器进行功率爬升计数和前导码的传输次数的计数,即前导码传输计数器既用于功率爬升次数的计数,也用于前导码重传次数的统计。
在5G新空口(NR)系统中引入了大规模天线(Massive MIMO),从而有了波束(beam)的概念,用户设备(User Equipment,UE)可以在每次重传时,选择不同的beam来发送前导码(preamble)。由于目前的结论是:终端如果执行波束切换,则对于功率爬升的计数保持不变;如果终端在每次重 传不改变波束,则对于功率爬升的计数会增加。所以原来的单个计数器同时用于功率爬升和preamble传输计数无法工作,即无法同时满足功率爬升和preamble传输计数的功能,不能保证NR系统通信的可靠性。
发明内容
本公开实施例提供一种随机接入过程前导码重传计数的方法,包括:
在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。
本公开实施例还提供一种终端,包括:
处理模块,用于在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。
本公开实施例还提供一种终端,包括: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,所述计算机程序被所述处理器执行时实现上述的随机接入过程前导码重传计数的方法的步骤。
本公开实施例还提供一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现上述的随机接入过程前导码重传计数的方法的步骤。
附图说明
图1表示本公开实施例的随机接入过程前导码重传计数的方法的流程示意图;
图2表示本公开实施例的终端的模块示意图;
图3表示本公开实施例的终端的结构框图。
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,下面将结合附图及具体实施例对本公开进行详细描述。
本公开针对当使用单个计数器同时用于功率爬升和preamble传输计数时,存在无法同时满足功率爬升和preamble传输计数的功能,不能保证NR系统通信的可靠性的问题,提供一种随机接入过程前导码重传计数的方法及终端。
如图1所示,本公开实施例的随机接入过程前导码重传计数的方法,包括:
步骤101,在随机接入过程中,检测到随机接入响应没有正确接收(No RAR is received)或者竞争解决失败(Contention Resolution Fail),按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。
需要说明的是,本实施例中的计数器可以包括针对终端设置的前导码传输计数器(PREAMBLE_TRANSMISSION_COUNTER)、针对波束(beam)设置的波束前导码重传计数器(PREAMBLE_TRANSMISSION_COUNTER_BEAM),针对功率爬升设置的功率爬升计数器(POWER_RAMPING_COUNTER)、针对波束切换设置的前导码重传波束切换计数器(PREAMBLE_BEAM_SWITCH_COUNTER)、针对功率等级设置的功率等级前导码传输计数器(PREAMBLE_TRANSMISSION_COUNTER_PL),需要说明的是,前导码传输计数器、波束前导码重传计数器、功率爬升计数器和前导码重传波束切换计数器(或功率等级前导码传输计数器)均属于不同类的计数器,且前导码重传波束切换计数器和功率等级前导码传输计数器为不能同时存在的计数器。
下面分别从终端中设置的计数器的类型对各计数器进行详细说明如下。
一、终端中只设置一种类型的计数器
当终端中只设置一种类型的计数器时,所述计数器在随机接入响应(RAR)消息没有正确接收或者竞争解决失败时,进行加1处理;或者
所述计数器在RAR消息没有正确接收或者竞争解决失败、且没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,进行加1处理。
1、终端中只设置前导码传输计数器
该前导码传输计数器为针对每个终端设置的,即终端中只包含一个前导码传输计数器,该前导码传输计数器在每次随机接入过程初始化或重置时,均会重置为1或0;且该前导码传输计数器在预设时间内没有接收到RAR消 息或该前导码传输计数器在竞争解决失败时,均会进行加1计数,需要说明的是,该预设时间内指的是RAR window,即RAR时间窗口。
该前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程(Random Access procedure)失败(即:随机接入失败)。
需要说明的是,这里的上层指的是位于物理层之上的无线链路层(Radio Link Control,RLC)、无线资源控制层(Radio Resource Control,RRC)、网络层、应用层等。
还需要说明的是,在此种情况下,随机接入前导码重传功率爬升的设置情况为:
当前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置(基站通过专用无线资源控制(RRC)消息、RRC配置、RRC重配置、系统消息(SI)或广播消息等方式为终端配置)或所述步长由预设规则(即协议约定)确定。
还需要说明的是,在功率爬升过程中,当得到的发射功率大于或等于最大发射功率时,则还应包括:
终端按照最大功率进行随机接入前导码发射;和/或
指示功率爬升暂停指示(power ramping suspension)。
需要说明的是,该功率爬升暂停指示由终端的物理层PHY指示给MAC层,该功率爬升暂停指示还可以有其它物理层触发条件,比如暂时停止(Drop)某个随机接入过程时(此场景可能发生在随机接入冲突的时候)。
2、终端中只设置波束前导码重传计数器
该波束前导码重传计数器为针对波束设置的,即终端中可以只包含一个波束前导码重传计数器,也可以包含多个波束前导码重传计数器(即可以针对每一个波束均设置一个波束前导码重传计数器,也可以针对某些波束设置 一个波束前导码重传计数器),该波束前导码重传计数器在每次随机接入过程初始化或重置时,均会重置为1或0。
对波束前导码重传计数器的计数规则,采用以下方式中的一种或多种进行设置。
1)当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;
即在某个波束上发送随机接入前导码(即msg.1),当在RAR window内没有正确接收RAR消息,将将该波束对应的波束前导码重传计数器的计数值加1。
2)在第二波束上发送随机接入消息三(即msg.3也就是随机接入过程中终端发送给基站的与调度传输相关的消息),当竞争解决失败(Contention Resolution)时,将基于第二波束配置的波束前导码重传计数器进行加1处理;
也就是,终端在某个beam上发msg.3,当竞争解决失败,则将这个波束对应的波束前导码重传计数器的计数值加1。
3)在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理;
也就是,在一个beam上发msg.1,在另一beam上发msg.3(可以与msg.1的波束相同,也可以不同),当竞争解决失败,则将发msg.1的beam对应的波束前导码重传计数器的计数值加1。
4)在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
也就是,在一个beam上发msg.1,在另一beam上发msg.3(可以与msg.1的波束相同,也可以不同),当竞争解决失败,则将发msg.1的beam对应的波束前导码重传计数器和发msg.3的波束对应的波束前导码重传计数器的计数值加1。
需要说明的是,上述2)、3)、4)为并列的情况,在使用时,择一而用。
需要说明的是,当波束前导码重传计数器的计数值达到第二预设最大发 送次数Max2或Max2+1,则还包括:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束的第一种实现方式为:
在预设时间或预设次数内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
即当波束前导码重传计数器的计数值达到预设的最大值时,在一定的时间内或一定的重传次数内,不再利用上一次重传所使用的波束进行下次重传。
在第一种实现时时,当达到预设时间或预设次数时,终端还可以选择重启所述波束前导码重传计数器。
具体地,在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束的第二种实现方式为:
当终端的发射功率在同一个功率等级或预设个功率等级内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
即当波束前导码重传计数器的计数值达到预设的最大值时,在同一个功率等级或预设个功率等级内,不再利用上一次重传所使用的波束进行下次重传。
在第一种实现时时,当终端的发射功率超过同一个功率等级或预设个功率等级后,终端还可以选择重启所述波束前导码重传计数器。
当终端中存在多个波束前导码重传计数器时,该多个波束前导码重传计数器的具体使用情况为:
1)若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大 发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
其中,所述第一预设个数可以指终端所有波束对应的波束前导码重传计数器的个数,也可以为指终端的某些波束对应的波束前导码重传计数器的个数。
2)若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
其中,所述第二预设个数可以指终端所有波束对应的波束前导码重传计数器的个数,也可以为指终端的某些波束对应的波束前导码重传计数器的个数。
还需要说明的是,在此种情况下,随机接入前导码重传功率爬升的设置情况为:
如果相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
还需要说明的是,在功率爬升过程中,当得到的发射功率大于或等于最大发射功率时,还包括:
终端按照最大功率进行随机接入前导码发射。
3、终端中只设置功率爬升计数器
该功率爬升计数器为针对功率爬升次数设置的,该功率爬升计数器在每次随机接入过程初始化或重置时,均会重置为1或0。
具体地,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导 码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
还需要说明的是,该功率爬升计数器可以针对每个终端设置一个,也可以针对波束进行设置,当功率爬升计数器对应波束进行设置,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。以此保证了终端在换波束的情况下,功率爬升计数器的值保持不变。
还需要说明的是,在此种情况下,随机接入前导码重传功率爬升的设置情况为:
根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置(基站通过专用无线资源控制(RRC)消息、RRC配置、RRC重配置、系统消息(SI)或广播消息等方式为终端配置)或所述功率爬升步长由预设规则(即协议约定)确定。
还需要说明的是,在功率爬升过程中,当计算得到的发射功率大于或等于最大功率时,还包括:
终端按照最大功率进行随机接入前导码发射。
还需要说明的是,当功率爬升计数器的计数值达到最大计数次数或最大计数次数+1,当预设时间内发生预设次数的RAR消息没有正确接收或者竞争解决失败时,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
4、终端中只设置前导码重传波束切换计数器或功率等级前导码传输计数 器
该前导码重传波束切换计数器或功率等级前导码传输计数器在每次随机接入过程初始化或重置时,均会重置为1或0。在重传随机接入前导码切换波束时,前导码重传波束切换计数器或功率等级前导码传输计数器进行加1处理。
当前导码重传波束切换计数器或功率等级前导码传输计数器达到预设最大计数次数Max4或Max4+1,则执行以下过程中的一个:
1)重传随机接入前导码时进行功率爬升,并将所述前导码重传波束切换计数器或功率等级前导码传输计数器进行重置;
2)随机接入前导码下次重传时,不换波束;
3)随机接入前导码下次重传时,切换到未传过随机接入前导码的波束进行随机接入前导码的重传。
需要说明的是,切换到未传过随机接入前导码的波束进行随机接入前导码的重传的具体实现方式为:
切换为与当前波束在同一个功率等级或预设个功率等级内、且未传过随机接入前导码的波束进行随机接入前导码的重传。
还需要说明的是,在终端传输前导码的发射功率变化时,需要将前导码重传波束切换计数器或功率等级前导码传输计数器进行重置。
具体地,当前导码重传波束切换计数器或功率等级前导码传输计数器达到最大计数值、且终端当前的发射功率达到最大发射功率,则通过MAC层指示上层随机接入问题或者指示随机接入过程失败。
二、终端中设置至少两种类型的计数器
当终端中设置至少两种类型的计数器时,当计数器在达到最大计数次数时,通过MAC层指示上层随机接入问题或者指示随机接入过程失败。
1、终端中设置前导码传输计数器和波束前导码重传计数器
需要说明的是,该前导码传输计数器和波束前导码重传计数器在每次随机接入过程初始化或重置时,均会重置为1或0。
对波束前导码重传计数器的计数规则,采用以下方式中的一种或多种进行设置。
1)当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;
2)在第二波束上发送随机接入消息三(即msg.3也就是随机接入过程中终端发送给基站的与调度传输相关的消息),当竞争解决失败(Contention Resolution)时,将基于第二波束配置的波束前导码重传计数器进行加1处理;
3)在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理;
4)在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
需要说明的是,上述2)、3)、4)为并列的情况,在使用时,择一而用。
在此种情况下,当波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则还应包括:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过MAC层指示上层随机接入问题或者指示随机接入过程失败。
还需要说明的是,在此种情况下,随机接入前导码重传功率爬升的设置情况为:相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
还需要说明的是,在功率爬升过程中,当得到的发射功率大于或等于最大发射功率时,还包括:
终端按照最大功率进行随机接入前导码发射。
在此种情况下,当前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Ma3x或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
第二预设个数的波束前导码重传计数器的计数之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
2、终端中设置前导码传输计数器和功率爬升计数器
需要说明的是,前导码传输计数器和功率爬升计数器在每次随机接入过程初始化或重置时,均会重置为1或0。
具体地,所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
进一步地,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,可以采用下述方式,进行随机接入前导码重传功率爬升的设置:前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
在此种情况下,对于功率爬升计数器的设置情况为:当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导 码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
还需要说明的是,在所述功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
因在此种情况下,终端中存在功率爬升计数器,所以在进行爬升功率的确定时优选采用下列方式:
根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
在此种方式下,当计算得到的发射功率大于或等于最大功率时,还包括:
终端按照最大功率进行随机接入前导码发射。
3、终端中设置波束前导码重传计数器和功率爬升计数器
需要说明的是,该波束前导码重传计数器和功率爬升计数器在每次随机接入过程初始化或重置时,均会重置为1或0。
对于波束前导码重传计数器的设置情况为:
当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
进一步地,波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则还包括:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
进一步地,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
若第二预设个数的波束前导码传输计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
对功率爬升计数器的具体设置情况为:
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
进一步地,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
因在此种情况下,终端中存在功率爬升计数器,所以在进行爬升功率的确定时优选采用下列方式:
根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
在此种方式下,当计算得到的发射功率大于或等于最大功率时,还包括:
终端按照最大功率进行随机接入前导码发射。
4、终端中设置前导码传输计数器、波束前导码重传计数器和功率爬升计数器
需要说明的是,该前导码传输计数器、波束前导码重传计数器和功率爬升计数器在每次随机接入过程初始化或重置时,均会重置为1或0。
对于前导码传输计数器的设置情况为:
所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
进一步地,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,可以采用下述方式,进行随机接入前导码重传功率爬升的设置:所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
在此种情况下,对于波束前导码重传计数器的设置情况为:
当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
进一步地,所述波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则还包括:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
进一步地,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
在此种情况下,对于功率爬升计数器的设置情况为:
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升 计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
进一步地,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
因在此种情况下,终端中存在功率爬升计数器,所以在进行爬升功率的确定时优选采用下列方式:
根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
在此种方式下,当发射功率大于或等于最大功率时,还包括:
终端按照最大功率进行随机接入前导码发射。
针对以上实现情况,每种实现情况中还可以进一步包括:前导码重传波束切换计数器或功率等级前导码传输计数器。
具体地,前导码重传波束切换计数器或功率等级前导码传输计数器的使用方式及计数规则已经在前面进行了叙述,在此不再赘述。
还需要说明的是,上述计数器在进行组合使用时,每种计数器都可以实现自己独立的功能,且当终端中设置有功率爬升计数器时,在进行爬升功率的确定,优选采取结合该功率爬升计数器获取爬升功率的方式,即根据公式: PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率。
本公开实施例,在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,通过按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数,以此避免了使用单个计数器同时用于功率爬升和preamble传输计数时,无法同时满足功率爬升和preamble传输计数的功能的问题,采用本公开实施例的方式,保证了NR系统通信的可靠性。
如图2所示,本公开实施例的终端,包括:
处理模块,用于在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。
可选地,设置的计数器包括:一种类型的计数器;
所述计数器在随机接入响应RAR消息没有正确接收或者竞争解决失败时,进行加1处理;或者
所述计数器在RAR消息没有正确接收或者竞争解决失败、且没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,进行加1处理。
具体地,所述计数器包括:前导码传输计数器。
具体地,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
进一步地,当得到的发射功率大于或等于最大发射功率时,所述处理模 块用于:
按照最大功率进行随机接入前导码发射。
具体地,所述计数器包括:波束前导码重传计数器。
具体地,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
具体地,所述波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则所述处理模块用于:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束的实现方式为:
在预设时间或预设次数内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
具体地,在达到预设时间或预设次数时,重启所述波束前导码重传计数器。
具体地,在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束 的实现方式为:
当终端的发射功率在同一个功率等级或预设个功率等级内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
具体地,当终端的发射功率超过同一个功率等级或预设个功率等级后,重启所述波束前导码重传计数器。
具体地,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,所述随机接入过程前导码重传计数的方法,还包括:
如果相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
具体地,当得到的发射功率大于或等于最大发射功率时,所述处理模块用于:
按照最大功率进行随机接入前导码发射。
具体地,所述计数器包括:功率爬升计数器。
具体地,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
具体地,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
具体地,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
进一步地,当计算得到的发射功率大于或等于最大功率时,所述处理模块用于:
按照最大功率进行随机接入前导码发射。
具体地,所述随机接入过程前导码重传计数的方法,还包括:
当功率爬升计数器的计数值达到最大计数次数或最大计数次数+1,当预设时间内发生预设次数的RAR消息没有正确接收或者竞争解决失败时,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,所述计数器包括:前导码重传波束切换计数器或功率等级前导码传输计数器。
具体地,在重传随机接入前导码切换波束时,前导码重传波束切换计数器或功率等级前导码传输计数器进行加1处理。
具体地,前导码重传波束切换计数器或功率等级前导码传输计数器达到预设最大计数次数Max4或Max4+1,则所述处理模块用于:
重传随机接入前导码时进行功率爬升,并将所述前导码重传波束切换计数器或功率等级前导码传输计数器进行重置;或者
随机接入前导码下次重传时,不换波束;或者
随机接入前导码下次重传时,切换到未传过随机接入前导码的波束进行随机接入前导码的重传。
具体地,切换到未传过随机接入前导码的波束进行随机接入前导码的重传的实现方式为:
切换为与当前波束在同一个功率等级或预设个功率等级内、且未传过随机接入前导码的波束进行随机接入前导码的重传。
具体地,当终端传输前导码的发射功率变化时,将前导码重传波束切换计数器或功率等级前导码传输计数器进行重置。
具体地,前导码重传波束切换计数器或功率等级前导码传输计数器达到最大计数值、且终端当前的发射功率达到最大发射功率,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,设置的计数器包括:至少两种类型的计数器;
所述计数器在达到最大计数次数时,通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,所述至少两种类型的计数器包括:前导码传输计数器和波束前导码重传计数器。
具体地,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
具体地,波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则所述处理模块用于:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
具体地,当得到的发射功率大于或等于最大发射功率时,所述处理模块用于:
按照最大功率进行随机接入前导码发射。
具体地,所述随机接入过程前导码重传计数的方法,还包括:
前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Ma3x或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
第二预设个数的波束前导码重传计数器的计数之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,所述至少两种类型的计数器包括:前导码传输计数器和功率爬升计数器。
具体地,所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
具体地,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者 指示随机接入过程失败。
具体地,前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
具体地,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
具体地,在所述功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
具体地,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
具体地,当计算得到的发射功率大于或等于最大功率时,所述处理模块用于:
按照最大功率进行随机接入前导码发射。
具体地,所述至少两种类型的计数器包括:波束前导码重传计数器和功率爬升计数器。
具体地,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
具体地,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
具体地,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
具体地,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三, 当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
具体地,波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则所述处理模块用于:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
若第二预设个数的波束前导码传输计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,所述至少两种类型的计数器包括:前导码传输计数器、波束前导码重传计数器和功率爬升计数器。
具体地,所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
具体地,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
具体地,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
具体地,所述波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则所述处理模块用于:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理 层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
具体地,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
具体地,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
进一步地,当发射功率大于或等于最大功率时,所述处理模块用于:
按照最大功率进行随机接入前导码发射。
具体地,所述至少两种类型的计数器还包括:前导码重传波束切换计数器或功率等级前导码传输计数器。
具体地,在重传随机接入前导码切换波束时,前导码重传波束切换计数器或功率等级前导码传输计数器进行加1处理。
具体地,所述前导码重传波束切换计数器或功率等级前导码传输计数器达到预设最大计数次数Max4或Max4+1,则所述处理模块用于:
重传随机接入前导码时进行功率爬升,并将所述前导码重传波束切换计数器或功率等级前导码传输计数器进行重置;或者
随机接入前导码下次重传时,不换波束;或者
随机接入前导码下次重传时,切换到未传过随机接入前导码的波束进行随机接入前导码的重传。
具体地,切换到未传过随机接入前导码的波束进行随机接入前导码的重 传的实现方式为:
切换为与当前波束在同一个功率等级或预设个功率等级内、且未传过随机接入前导码的波束进行随机接入前导码的重传。
具体地,前导码重传波束切换计数器或功率等级前导码传输计数器达到最大计数值、且终端当前的发射功率达到最大发射功率,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
具体地,当终端传输前导码的发射功率变化时,将前导码重传波束切换计数器或功率等级前导码传输计数器进行重置。
需要说明的是,该终端实施例是与上述应用于终端侧的随机接入过程前导码重传计数的方法相对应的终端,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。
本公开实施例还提供一种终端,包括: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,所述计算机程序被所述处理器执行时实现上述的应用于终端侧的随机接入过程前导码重传计数的方法实施例中的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本公开实施例还提供一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现上述的应用于终端侧的随机接入过程前导码重传计数的方法实施例中的各个过程,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,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
如图3所示,为本公开一实施例的终端的结构框图。下面结合该图具体说明本公开的随机接入过程前导码重传计数的方法的应用实体。
如图3所示的终端300包括:至少一个处理器301、存储器302、至少一个网络接口304和用户接口303。终端300中的各个组件通过总线系统305耦合在一起。可理解,总线系统305用于实现这些组件之间的连接通信。总线系统305除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图3中将各种总线都标为总线系统305。
其中,用户接口303可以包括显示器、键盘或者点击设备(例如,鼠标, 轨迹球(track ball)、触感板或者触摸屏等。
可以理解,本公开实施例中的存储器302可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本文描述的系统和方法的存储器302旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中,存储器302存储了如下的元素,可执行模块或者数据结构,或者他们的子集,或者他们的扩展集:操作系统3021和应用程序3022。
其中,操作系统3021,包含各种系统程序,例如框架层、核心库层、驱动层等,用于实现各种基础业务以及处理基于硬件的任务。应用程序3022,包含各种应用程序,例如媒体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序3022中。
在本公开实施例中,移动终端300还包括:存储在存储器302上并可在处理器301上运行的计算机程序,具体地,可以是应用程序3022中的计算机控制程序,计算机程序被处理器301执行时实现如下步骤:在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。
上述本公开实施例揭示的方法可以应用于处理器301中,或者由处理器301实现。处理器301可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器301中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器301可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器302,处理器301读取存储器302中的信息,结合其硬件完成上述方法的步骤。具体地,该计算机可读存储介质上存储有计算机程序,计算机程序被处理器301执行时实现下述的步骤。
可以理解的是,本文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,处理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 Processing,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、用于执行本申请所述功能的其它电子单元或其组合中。
对于软件实现,可通过执行本文所述功能的模块(例如过程、函数等)来实现本文所述的技术。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。
可选地,设置的计数器包括:一种类型的计数器;计算机程序被处理器301执行时实现:所述计数器在随机接入响应RAR消息没有正确接收或者竞争解决失败时,进行加1处理;或者
所述计数器在RAR消息没有正确接收或者竞争解决失败、且没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,进行加1处理。
可选地,所述计数器包括:前导码传输计数器,计算机程序被处理器301执行时实现:所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
可选地,当得到的发射功率大于或等于最大发射功率时,计算机程序被处理器301执行时实现:
按照最大功率进行随机接入前导码发射。
可选地,所述计数器包括:波束前导码重传计数器。计算机程序被处理器301执行时实现:当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
可选地,所述波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,计算机程序被处理器301执行时实现:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切 换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束的实现方式为:
在预设时间或预设次数内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
可选地,计算机程序被处理器301执行时实现:在达到预设时间或预设次数时,重启所述波束前导码重传计数器。
可选地,计算机程序被处理器301执行时实现:在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束的实现方式为:
当终端的发射功率在同一个功率等级或预设个功率等级内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
可选地,计算机程序被处理器301执行时实现:当终端的发射功率超过同一个功率等级或预设个功率等级后,重启所述波束前导码重传计数器。
可选地,计算机程序被处理器301执行时实现:若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:如果相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
可选地,当得到的发射功率大于或等于最大发射功率时,计算机程序被处理器301执行时实现:按照最大功率进行随机接入前导码发射;和/或
指示功率爬升暂停指示。
可选地,所述计数器包括:功率爬升计数器,计算机程序被处理器301执行时实现:当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
可选地,计算机程序被处理器301执行时实现:在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
可选地,计算机程序被处理器301执行时实现:根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
可选地,当计算得到的发射功率大于或等于最大功率时,计算机程序被处理器301执行时实现:
按照最大功率进行随机接入前导码发射。
可选地,计算机程序被处理器301执行时实现:当功率爬升计数器的计数值达到最大计数次数或最大计数次数+1,当预设时间内发生预设次数的RAR消息没有正确接收或者竞争解决失败时,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,所述计数器包括:前导码重传波束切换计数器或功率等级前导码传输计数器,计算机程序被处理器301执行时实现:在重传随机接入前导码切换波束时,前导码重传波束切换计数器或功率等级前导码传输计数器进行加1处理。
可选地,前导码重传波束切换计数器或功率等级前导码传输计数器达到预设最大计数次数Max4或Max4+1,计算机程序被处理器301执行时实现:
重传随机接入前导码时进行功率爬升,并将所述前导码重传波束切换计数器或功率等级前导码传输计数器进行重置;或者
随机接入前导码下次重传时,不换波束;或者
随机接入前导码下次重传时,切换到未传过随机接入前导码的波束进行随机接入前导码的重传。
可选地,计算机程序被处理器301执行时实现:切换到未传过随机接入前导码的波束进行随机接入前导码的重传的实现方式为:
切换为与当前波束在同一个功率等级或预设个功率等级内、且未传过随机接入前导码的波束进行随机接入前导码的重传。
可选地,计算机程序被处理器301执行时实现:当终端传输前导码的发射功率变化时,将前导码重传波束切换计数器或功率等级前导码传输计数器进行重置。
可选地,计算机程序被处理器301执行时实现:前导码重传波束切换计数器或功率等级前导码传输计数器达到最大计数值、且终端当前的发射功率达到最大发射功率,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,设置的计数器包括:至少两种类型的计数器;计算机程序被处理器301执行时实现:所述计数器在达到最大计数次数时,通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,所述至少两种类型的计数器包括:前导码传输计数器和波束前导码重传计数器,计算机程序被处理器301执行时实现:当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
可选地,波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,计算机程序被处理器301执行时实现:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
可选地,当得到的发射功率大于或等于最大发射功率时,计算机程序被处理器301执行时实现:按照最大功率进行随机接入前导码发射。
可选地,计算机程序被处理器301执行时实现:前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Ma3x或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
第二预设个数的波束前导码重传计数器的计数之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,所述至少两种类型的计数器包括:前导码传输计数器和功率爬升计数器,计算机程序被处理器301执行时实现:所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
可选地,计算机程序被处理器301执行时实现:所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
可选地,计算机程序被处理器301执行时实现:当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器 进行加1处理。
可选地,计算机程序被处理器301执行时实现:在所述功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
可选地,计算机程序被处理器301执行时实现:根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
可选地,当计算得到的发射功率大于或等于最大功率时,计算机程序被处理器301执行时实现:按照最大功率进行随机接入前导码发射。
可选地,所述至少两种类型的计数器包括:波束前导码重传计数器和功率爬升计数器,计算机程序被处理器301执行时实现:根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设 规则确定。
可选地,计算机程序被处理器301执行时实现:当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
可选地,计算机程序被处理器301执行时实现:在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
可选地,计算机程序被处理器301执行时实现:当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
可选地,波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,计算机程序被处理器301执行时实现:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:若第一预设个数的波束 前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
若第二预设个数的波束前导码传输计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,所述至少两种类型的计数器包括:前导码传输计数器、波束前导码重传计数器和功率爬升计数器,计算机程序被处理器301执行时实现:所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
可选地,计算机程序被处理器301执行时实现:所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
否则,发射功率不变;
其中,所述步长由基站为终端配置或所述步长由预设规则确定。
可选地,计算机程序被处理器301执行时实现:当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
可选地,所述波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,计算机程序被处理器301执行时实现:
在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
可选地,计算机程序被处理器301执行时实现:在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
可选地,计算机程序被处理器301执行时实现:根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行 重传的发射功率;
其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
可选地,当发射功率大于或等于最大功率时,计算机程序被处理器301执行时实现:按照最大功率进行随机接入前导码发射。
可选地,所述至少两种类型的计数器还包括:前导码重传波束切换计数器或功率等级前导码传输计数器,计算机程序被处理器301执行时实现:
可选地,计算机程序被处理器301执行时实现:在重传随机接入前导码切换波束时,前导码重传波束切换计数器或功率等级前导码传输计数器进行加1处理。
可选地,计算机程序被处理器301执行时实现:所述前导码重传波束切换计数器或功率等级前导码传输计数器达到预设最大计数次数Max4或Max4+1,则执行:
重传随机接入前导码时进行功率爬升,并将所述前导码重传波束切换计数器或功率等级前导码传输计数器进行重置;或者
随机接入前导码下次重传时,不换波束;或者
随机接入前导码下次重传时,切换到未传过随机接入前导码的波束进行随机接入前导码的重传。
可选地,计算机程序被处理器301执行时实现:切换到未传过随机接入前导码的波束进行随机接入前导码的重传的实现方式为:
切换为与当前波束在同一个功率等级或预设个功率等级内、且未传过随机接入前导码的波束进行随机接入前导码的重传。
可选地,计算机程序被处理器301执行时实现:前导码重传波束切换计数器或功率等级前导码传输计数器达到最大计数值、且终端当前的发射功率达到最大发射功率,则通过介质访问控制MAC层指示上层随机接入问题或 者指示随机接入过程失败。
可选地,计算机程序被处理器301执行时实现:当终端传输前导码的发射功率变化时,将前导码重传波束切换计数器或功率等级前导码传输计数器进行重置。
终端300能够实现前述实施例中终端实现的各个过程,为避免重复,这里不再赘述。
本公开实施例的终端,在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,通过按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数,以此避免了使用单个计数器同时用于功率爬升和preamble传输计数时,无法同时满足功率爬升和preamble传输计数的功能的问题,采用本公开实施例的方式,保证了NR系统通信的可靠性。
本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。
本领域内的技术人员应明白,本公开实施例的实施例可提供为方法、装置、或计算机程序产品。因此,本公开实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本公开实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开实施例是参照根据本公开实施例的方法、终端设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理终端设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理终端设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理终 端设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理终端设备上,使得在计算机或其他可编程终端设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程终端设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本公开实施例的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例做出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本公开实施例范围的所有变更和修改。
还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
以上所述的是本公开的优选实施方式,应当指出对于本技术领域的普通人员来说,在不脱离本公开所述的原理前提下还可以作出若干改进和润饰,这些改进和润饰也在本公开的保护范围内。

Claims (103)

  1. 一种随机接入过程前导码重传计数的方法,包括:
    在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。
  2. 根据权利要求1所述的随机接入过程前导码重传计数的方法,其中,设置的计数器包括:一种类型的计数器;
    所述计数器在随机接入响应RAR消息没有正确接收或者竞争解决失败时,进行加1处理;或者
    所述计数器在RAR消息没有正确接收或者竞争解决失败、且没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,进行加1处理。
  3. 根据权利要求2所述的随机接入过程前导码重传计数的方法,其中,所述计数器包括:前导码传输计数器。
  4. 根据权利要求3所述的随机接入过程前导码重传计数的方法,其中,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  5. 根据权利要求3所述的随机接入过程前导码重传计数的方法,其中,所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  6. 根据权利要求5所述的随机接入过程前导码重传计数的方法,其中,当得到的发射功率大于或等于最大发射功率时,还包括:
    终端按照最大功率进行随机接入前导码发射。
  7. 根据权利要求2所述的随机接入过程前导码重传计数的方法,其中, 所述计数器包括:波束前导码重传计数器。
  8. 根据权利要求7所述的随机接入过程前导码重传计数的方法,其中,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
    在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
    在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
  9. 根据权利要求7所述的随机接入过程前导码重传计数的方法,其中,所述波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则还包括:
    在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
    在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
    通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  10. 根据权利要求9所述的随机接入过程前导码重传计数的方法,其中,在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束的实现方式为:
    在预设时间或预设次数内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
  11. 根据权利要求10所述的随机接入过程前导码重传计数的方法,其中,在达到预设时间或预设次数时,重启所述波束前导码重传计数器。
  12. 根据权利要求9所述的随机接入过程前导码重传计数的方法,其中,在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束的实现方式为:
    当终端的发射功率在同一个功率等级或预设个功率等级内,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束。
  13. 根据权利要求12所述的随机接入过程前导码重传计数的方法,其中,当终端的发射功率超过同一个功率等级或预设个功率等级后,重启所述波束前导码重传计数器。
  14. 根据权利要求7所述的随机接入过程前导码重传计数的方法,其中,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  15. 根据权利要求7所述的随机接入过程前导码重传计数的方法,其中,若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  16. 根据权利要求7所述的随机接入过程前导码重传计数的方法,其中,还包括:
    如果相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  17. 根据权利要求16所述的随机接入过程前导码重传计数的方法,其中,当得到的发射功率大于或等于最大发射功率时,还包括:
    终端按照最大功率进行随机接入前导码发射。
  18. 根据权利要求2所述的随机接入过程前导码重传计数的方法,其中,所述计数器包括:功率爬升计数器。
  19. 根据权利要求18所述的随机接入过程前导码重传计数的方法,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数 器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  20. 根据权利要求18所述的随机接入过程前导码重传计数的方法,其中,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  21. 根据权利要求18所述的随机接入过程前导码重传计数的方法,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  22. 根据权利要求21所述的随机接入过程前导码重传计数的方法,其中,当计算得到的发射功率大于或等于最大功率时,还包括:
    终端按照最大功率进行随机接入前导码发射。
  23. 根据权利要求18所述的随机接入过程前导码重传计数的方法,其中,还包括:
    当功率爬升计数器的计数值达到最大计数次数或最大计数次数+1,当预设时间内发生预设次数的RAR消息没有正确接收或者竞争解决失败时,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  24. 根据权利要求2所述的随机接入过程前导码重传计数的方法,其中, 所述计数器包括:前导码重传波束切换计数器或功率等级前导码传输计数器。
  25. 根据权利要求24所述的随机接入过程前导码重传计数的方法,其中,在重传随机接入前导码切换波束时,前导码重传波束切换计数器或功率等级前导码传输计数器进行加1处理。
  26. 根据权利要求24所述的随机接入过程前导码重传计数的方法,其中,前导码重传波束切换计数器或功率等级前导码传输计数器达到预设最大计数次数Max4或Max4+1,则还包括:
    重传随机接入前导码时进行功率爬升,并将所述前导码重传波束切换计数器或功率等级前导码传输计数器进行重置;或者
    随机接入前导码下次重传时,不换波束;或者
    随机接入前导码下次重传时,切换到未传过随机接入前导码的波束进行随机接入前导码的重传。
  27. 根据权利要求26所述的随机接入过程前导码重传计数的方法,其中,切换到未传过随机接入前导码的波束进行随机接入前导码的重传的实现方式为:
    切换为与当前波束在同一个功率等级或预设个功率等级内、且未传过随机接入前导码的波束进行随机接入前导码的重传。
  28. 根据权利要求24所述的随机接入过程前导码重传计数的方法,其中,当终端传输前导码的发射功率变化时,将前导码重传波束切换计数器或功率等级前导码传输计数器进行重置。
  29. 根据权利要求24所述的随机接入过程前导码重传计数的方法,其中,前导码重传波束切换计数器或功率等级前导码传输计数器达到最大计数值、且终端当前的发射功率达到最大发射功率,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  30. 根据权利要求1所述的随机接入过程前导码重传计数的方法,其中,设置的计数器包括:至少两种类型的计数器;
    所述计数器在达到最大计数次数时,通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  31. 根据权利要求30所述的随机接入过程前导码重传计数的方法,其中, 所述至少两种类型的计数器包括:前导码传输计数器和波束前导码重传计数器。
  32. 根据权利要求31所述的随机接入过程前导码重传计数的方法,其中,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
    在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
    在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
  33. 根据权利要求31所述的随机接入过程前导码重传计数的方法,其中,波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则还包括:
    在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
    在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
    通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  34. 根据权利要求31所述的随机接入过程前导码重传计数的方法,其中,相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  35. 根据权利要求34所述的随机接入过程前导码重传计数的方法,其中,当得到的发射功率大于或等于最大发射功率时,还包括:
    终端按照最大功率进行随机接入前导码发射。
  36. 根据权利要求31所述的随机接入过程前导码重传计数的方法,还包括:
    前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
    第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Ma3x或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
    第二预设个数的波束前导码重传计数器的计数之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  37. 根据权利要求30所述的随机接入过程前导码重传计数的方法,其中,所述至少两种类型的计数器包括:前导码传输计数器和功率爬升计数器。
  38. 根据权利要求37所述的随机接入过程前导码重传计数的方法,其中,所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
  39. 根据权利要求37所述的随机接入过程前导码重传计数的方法,其中,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  40. 根据权利要求37所述的随机接入过程前导码重传计数的方法,其中,前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  41. 根据权利要求37所述的随机接入过程前导码重传计数的方法,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重 传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  42. 根据权利要求37所述的随机接入过程前导码重传计数的方法,其中,在所述功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  43. 根据权利要求37所述的随机接入过程前导码重传计数的方法,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  44. 根据权利要求43所述的随机接入过程前导码重传计数的方法,其中,当计算得到的发射功率大于或等于最大功率时,还包括:
    终端按照最大功率进行随机接入前导码发射。
  45. 根据权利要求30所述的随机接入过程前导码重传计数的方法,其中,所述至少两种类型的计数器包括:波束前导码重传计数器和功率爬升计数器。
  46. 根据权利要求45所述的随机接入过程前导码重传计数的方法,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+ (POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  47. 根据权利要求45所述的随机接入过程前导码重传计数的方法,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  48. 根据权利要求45所述的随机接入过程前导码重传计数的方法,其中,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  49. 根据权利要求45所述的随机接入过程前导码重传计数的方法,其中,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
    在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
    在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
  50. 根据权利要求45所述的随机接入过程前导码重传计数的方法,其中,波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则还包括:
    在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
    在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
    通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  51. 根据权利要求45所述的随机接入过程前导码重传计数的方法,其中,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
    若第二预设个数的波束前导码传输计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  52. 根据权利要求30所述的随机接入过程前导码重传计数的方法,其中,所述至少两种类型的计数器包括:前导码传输计数器、波束前导码重传计数器和功率爬升计数器。
  53. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
  54. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  55. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  56. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,当在第一波束上发送随机接入前导码,且在预设时间内没有正确接收RAR消息时,将基于第一波束配置的波束前导码重传计数器进行加1处理;或者
    在第二波束上发送随机接入消息三,当竞争解决失败时,将基于第二波束配置的波束前导码重传计数器进行加1处理;或者
    在第三波束上发送随机接入前导码,在第四波束上发送随机接入消息三,当竞争解决失败时,将基于第三波束配置的波束前导码重传计数器进行加1处理,或将基于第三波束配置的波束前导码重传计数器和基于第四波束配置的波束前导码重传计数器分别进行加1处理。
  57. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,所述波束前导码重传计数器的计数值达到第二预设最大发送次数Max2或Max2+1,则还包括:
    在本随机接入过程中进行下一次随机接入前导码重传时,进行波束的切换;或者
    在本随机接入过程中进行下一次随机接入前导码重传时,将上次发送随机接入前导码的波束不作为重传下一次随机接入前导码的候选波束;或者
    通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  58. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,若第一预设个数的波束前导码重传计数器的计数值达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败;或者
    若第二预设个数的波束前导码重传计数器的计数值之和达到第三预设最大发送次数Max3或Max3+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  59. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  60. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  61. 根据权利要求52所述的随机接入过程前导码重传计数的方法,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  62. 根据权利要求61所述的随机接入过程前导码重传计数的方法,其中,当发射功率大于或等于最大功率时,还包括:
    终端按照最大功率进行随机接入前导码发射。
  63. 根据权利要求31-62任一项所述的随机接入过程前导码重传计数的方法,其中,所述至少两种类型的计数器还包括:前导码重传波束切换计数器或功率等级前导码传输计数器。
  64. 根据权利要求63所述的随机接入过程前导码重传计数的方法,其中,在重传随机接入前导码切换波束时,前导码重传波束切换计数器或功率等级前导码传输计数器进行加1处理。
  65. 根据权利要求63所述的随机接入过程前导码重传计数的方法,其中,所述前导码重传波束切换计数器或功率等级前导码传输计数器达到预设最大计数次数Max4或Max4+1,则还包括:
    重传随机接入前导码时进行功率爬升,并将所述前导码重传波束切换计数器或功率等级前导码传输计数器进行重置;或者
    随机接入前导码下次重传时,不换波束;或者
    随机接入前导码下次重传时,切换到未传过随机接入前导码的波束进行随机接入前导码的重传。
  66. 根据权利要求65所述的随机接入过程前导码重传计数的方法,其中,切换到未传过随机接入前导码的波束进行随机接入前导码的重传的实现方式为:
    切换为与当前波束在同一个功率等级或预设个功率等级内、且未传过随机接入前导码的波束进行随机接入前导码的重传。
  67. 根据权利要求63所述的随机接入过程前导码重传计数的方法,其中,前导码重传波束切换计数器或功率等级前导码传输计数器达到最大计数值、且终端当前的发射功率达到最大发射功率,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  68. 根据权利要求63所述的随机接入过程前导码重传计数的方法,其中,当终端传输前导码的发射功率变化时,将前导码重传波束切换计数器或功率等级前导码传输计数器进行重置。
  69. 一种终端,包括:
    处理模块,用于在随机接入过程中,检测到随机接入响应没有正确接收或者竞争解决失败,按照设置的计数器进行前导码重传次数和/或发送前导码的功率爬升次数的计数。
  70. 根据权利要求69所述的终端,其中,设置的计数器包括:一种类型的计数器;
    所述计数器在随机接入响应RAR消息没有正确接收或者竞争解决失败时,进行加1处理;或者
    所述计数器在RAR消息没有正确接收或者竞争解决失败、且没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,进行加1处理。
  71. 根据权利要求70所述的终端,其中,所述计数器包括:前导码传输计数器。
  72. 根据权利要求71所述的终端,其中,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  73. 根据权利要求72所述的终端,其中,所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  74. 根据权利要求73所述的终端,其中,当得到的发射功率大于或等于最大发射功率时,所述处理模块用于:
    按照最大功率进行随机接入前导码发射。
  75. 根据权利要求70所述的终端,其中,所述计数器包括:功率爬升计数器。
  76. 根据权利要求75所述的终端,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  77. 根据权利要求75所述的终端,其中,在功率爬升计数器是基于单个 波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  78. 根据权利要求75所述的终端,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  79. 根据权利要求78所述的终端,其中,当计算得到的发射功率大于或等于最大功率时,所述处理模块用于:
    按照最大功率进行随机接入前导码发射。
  80. 根据权利要求75所述的终端,还包括:
    当功率爬升计数器的计数值达到最大计数次数或最大计数次数+1,当预设时间内发生预设次数的RAR消息没有正确接收或者竞争解决失败时,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  81. 根据权利要求69所述的终端,其中,设置的计数器包括:至少两种类型的计数器;
    所述计数器在达到最大计数次数时,通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  82. 根据权利要求81所述的终端,其中,所述至少两种类型的计数器包括:前导码传输计数器和功率爬升计数器。
  83. 根据权利要求82所述的终端,其中,所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
  84. 根据权利要求82所述的终端,其中,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  85. 根据权利要求82所述的终端,其中,前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  86. 根据权利要求82所述的终端,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  87. 根据权利要求82所述的终端,其中,在所述功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  88. 根据权利要求82所述的终端,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  89. 根据权利要求88所述的终端,其中,当计算得到的发射功率大于或等于最大功率时,所述处理模块用于:
    按照最大功率进行随机接入前导码发射。
  90. 根据权利要求81所述的终端,其中,所述至少两种类型的计数器包括:波束前导码重传计数器和功率爬升计数器。
  91. 根据权利要求90所述的终端,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  92. 根据权利要求90所述的终端,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  93. 根据权利要求90所述的终端,其中,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  94. 根据权利要求81所述的终端,其中,所述至少两种类型的计数器包 括:前导码传输计数器、波束前导码重传计数器和功率爬升计数器。
  95. 根据权利要求94所述的终端,其中,所述前导码传输计数器在预设时间内没有正确接收随机接入响应RAR消息或者竞争解决失败时,进行加1处理。
  96. 根据权利要求94所述的终端,其中,所述前导码传输计数器的计数值达到第一预设最大发送次数Max1或Max1+1,则通过介质访问控制MAC层指示上层随机接入问题或者指示随机接入过程失败。
  97. 根据权利要求94所述的终端,其中,所述前导码传输计数器对前导码进行重传计数时,若相邻两次前导码传输采用的波束相同,则发射功率增加一个步长;或者
    若相邻两次前导码传输采用的波束相同,且没有收到物理层指示MAC层的功率爬升暂停指示时,则发射功率增加一个步长;
    否则,发射功率不变;
    其中,所述步长由基站为终端配置或所述步长由预设规则确定。
  98. 根据权利要求94所述的终端,其中,当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同时,所述功率爬升计数器进行加1处理;或者
    当存在在预设时间内没有正确接收RAR消息、竞争解决失败和进行前导码重传中的一项、且相邻两次前导码传输采用的波束相同以及没有收到物理层指示介质访问控制MAC层的功率爬升暂停指示时,所述功率爬升计数器进行加1处理。
  99. 根据权利要求94所述的终端,其中,在功率爬升计数器是基于单个波束配置时,每次重传换波束时,将当前波束对应的功率爬升计数器重置为前一次传输随机接入前导码的传输波束对应的功率爬升计数器的值。
  100. 根据权利要求94所述的终端,其中,根据公式:PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTargetPower+DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRampingStep,获取爬升后进行重传的发射功率;
    其中,PREAMBLE_RECEIVED_TARGET_POWER表示目标功率值,preambleInitialReceivedTargetPower表示原始功率值,DELTA_PREAMBLE表示预设固定值,POWER_RAMPING_COUNTER表示当前功率爬升计数器的取值,powerRampingStep表示功率爬升步长;
    其中,所述功率爬升步长由基站为终端配置或所述功率爬升步长由预设规则确定。
  101. 根据权利要求100所述的终端,其中,当发射功率大于或等于最大功率时,所述处理模块用于:
    按照最大功率进行随机接入前导码发射。
  102. 一种终端,包括: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,所述计算机程序被所述处理器执行时实现如权利要求1至68中任一项所述的随机接入过程前导码重传计数的方法的步骤。
  103. 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至68中任一项所述的随机接入过程前导码重传计数的方法的步骤。
PCT/CN2018/090803 2017-06-16 2018-06-12 随机接入过程前导码重传计数的方法及终端 WO2018228368A1 (zh)

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