WO2024093957A1 - 参数调整方法、电子设备和存储介质 - Google Patents

参数调整方法、电子设备和存储介质 Download PDF

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Publication number
WO2024093957A1
WO2024093957A1 PCT/CN2023/128076 CN2023128076W WO2024093957A1 WO 2024093957 A1 WO2024093957 A1 WO 2024093957A1 CN 2023128076 W CN2023128076 W CN 2023128076W WO 2024093957 A1 WO2024093957 A1 WO 2024093957A1
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WIPO (PCT)
Prior art keywords
channel
side link
physical side
access process
channel access
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PCT/CN2023/128076
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English (en)
French (fr)
Inventor
贺海港
卢有雄
陈杰
苗婷
张晨晨
Original Assignee
中兴通讯股份有限公司
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Publication of WO2024093957A1 publication Critical patent/WO2024093957A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of wireless communication technology, for example, to a parameter adjustment method, an electronic device and a storage medium.
  • the service transmission between user equipment (UE) can be transmitted without passing through the network side, that is, the service transmission does not pass through the cellular link forwarding between the UE and the base station, and can be transmitted from the data source UE to the target UE through SL.
  • the applications of SL communication include device to device (D2D) communication and vehicle to everything (V2E) communication, vehicle to pedestrian (V2P) communication, vehicle to infrastructure (V2I) communication, etc.
  • D2D device to device
  • V2E vehicle to everything
  • V2P vehicle to pedestrian
  • V2I vehicle to infrastructure
  • a time slot can include some SL channels.
  • the SL channels in a time slot include the Physical Sidelink Control Channel (PSCCH), the Physical Sidelink Shared Channel (PSSCH) and the Physical Sidelink Feedback Channel (PSFCH).
  • a time slot also includes Orthogonal Frequency Division Multiplexing (OFDM) symbols in which no SL channels are sent throughout the symbol.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the communication node In the unlicensed spectrum, only channels that have successfully listened before talking (LBT) can be transmitted. In addition, in the LBT base station, the communication node performs the channel access process before transmitting information. Only when the channel is idle can the communication node transmit information. In the unlicensed spectrum, specific parameters need to be adjusted based on some information. However, due to the LBT process, the information used to adjust specific parameters may be missing, resulting in the inability to adjust specific parameters.
  • the embodiments of the present application provide a parameter adjustment method, an electronic device, and a storage medium to adjust specific parameters on an unlicensed spectrum, thereby reducing the difficulty of determining the values of the specific parameters and enhancing the communication quality.
  • the present invention provides a parameter adjustment method, which includes:
  • a physical side link feedback channel is received on a physical side link feedback channel resource associated with a link sharing channel; a first channel access process is performed before the physical side link feedback channel resource; and a contention window is adjusted according to a channel evaluation result of the first channel access process.
  • the present application also provides another parameter adjustment method, which includes:
  • a physical side link shared channel is sent to at least one node including a second node; a physical side link feedback channel is received at a reception timing of a physical side link feedback channel associated with the physical side link shared channel; a channel access process is performed before the reception timing of the physical side link feedback channel; and a variable is adjusted according to a reception result of the physical side link feedback channel and a channel evaluation result of the channel access process, wherein the variable is used to determine whether a wireless link failure has occurred.
  • the present application also provides an electronic device, which includes:
  • One or more processors a memory for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors implement the parameter adjustment method as described in any one of the embodiments of the present application.
  • An embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores one or more programs, and the one or more programs are executed by the one or more processors, so that the one or more processors implement the parameter adjustment method as described in any one of the embodiments of the present application.
  • FIG1 is a flow chart of a parameter adjustment method provided in an embodiment of the present application.
  • FIG2 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • FIG3 is an example diagram of parameter adjustment provided by an embodiment of the present application.
  • FIG4 is an exemplary diagram of a starting point of a first channel access process provided by an embodiment of the present application.
  • FIG5 is an exemplary diagram of another starting point of a first channel access process provided by an embodiment of the present application.
  • FIG6 is an exemplary diagram of another starting point of a first channel access process provided in an embodiment of the present application.
  • FIG7 is an exemplary diagram of another starting point of a first channel access process provided in an embodiment of the present application.
  • FIG8 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • FIG9 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • FIG10 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • FIG11 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • FIG12 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • FIG13 is a schematic diagram of the structure of a parameter adjustment device provided in an embodiment of the present application.
  • FIG14 is a schematic diagram of the structure of another parameter adjustment device provided in an embodiment of the present application.
  • FIG. 15 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.
  • Sidelink communications such as Long Term Evolution (LTE) sidelink and New Radio (NR) sidelink, support two resource allocation methods, namely base station scheduling mode (such as LTE mode3, NR mode1) and UE autonomous resource selection mode (such as LTE mode4, NR mode2).
  • base station scheduling mode such as LTE mode3, NR mode1
  • UE autonomous resource selection mode such as LTE mode4, NR mode2
  • sidelink communication also supports working in the Intelligent Traffic System (ITS) spectrum, licensed spectrum, and in the future, unlicensed frequencies.
  • ITS Intelligent Traffic System
  • the Type 1 channel access process is supported.
  • a counter N is included.
  • the initial value of the counter N is a random value from 0 to the contention window (CW) value.
  • the channel is considered available only when the number of times the channel is detected to be idle reaches N.
  • the first node can send sidelink information on the channel.
  • the CW value can be adjusted through ACK and NACK.
  • NACK only feedback is supported, that is, among the user devices that receive the PSSCH, only the user devices that do not correctly receive the PSSCH feedback NACK, and those user devices that correctly receive the PSSCH do not provide any feedback.
  • User devices that do not correctly receive the PSSCH can feedback NACK on a common PSFCH resource.
  • NACK only feedback how to use traditional ACK and NACK to adjust the CW value?
  • the present application provides a parameter adjustment method to determine the CW value.
  • FIG1 is a flow chart of a parameter adjustment method provided in an embodiment of the present application.
  • the embodiment of the present application is applicable to the case of adjusting the CW value in the NACK only feedback of the side link communication.
  • the method can be executed by a parameter adjustment device, which can be implemented by software and/or hardware and is generally integrated in a terminal device or a base station.
  • the method provided in the embodiment of the present application includes the following S110-S140.
  • the first node may transmit a physical side link shared channel to other devices, wherein the other devices may include a second node.
  • the first node may transmit a PSSCH to one or more devices in a time slot, and the PSSCH may be used to carry side link control information (Sidelink Control Information, SCI), and the SCI includes time-frequency resource indication information of the PSSCH.
  • SCI Sidelink Control Information
  • the first node may monitor the physical side link feedback information on the physical side link feedback channel resources associated with the above-mentioned physical side link shared channel.
  • the first node may perform a first channel access process on an unlicensed spectrum before a physical side link feedback channel resource, and the first channel access process may be used to determine whether the channel is idle or whether the channel is available.
  • the first channel access process may generate a channel assessment result, which may include channel idle, channel busy, channel unavailable, channel available, etc.
  • the contention window can be used for resource contention, for example, to obtain unlicensed spectrum.
  • the contention window is used to determine the initialization value of the idle times counter during the channel access process.
  • the condition for judging that the channel is available includes the idle times counter decreasing by one to zero.
  • the value of the contention window can be adjusted according to the channel evaluation result of the first channel access process.
  • the adjustment may include increasing the value based on the original value, decreasing the value based on the original value, or maintaining the original value.
  • the adjustment of the contention window includes at least one of the following:
  • adjustment of the contention window may include increasing the value of the contention window, wherein the increased value meets the requirements of a channel access priority; adjustment of the contention window may also include reducing the value of the contention window, wherein the reduced value meets the requirements of a channel access priority; adjustment of the contention window may include increasing the value of the contention window, such that the increased value is greater than the minimum value of the current contention window value before adjustment; adjustment of the contention window may include reducing the value of the contention window, such that the reduced value meets the minimum value of a channel priority; adjustment of the contention window may also include not adjusting the value, such that the contention window still meets the current contention window value.
  • a channel access priority may include a channel access priority corresponding to a physical side link shared channel sent by the first node. In other embodiments, a channel access priority may be a channel access priority corresponding to a physical side link feedback channel received by the first node.
  • FIG2 is a flowchart of another parameter adjustment method provided in an embodiment of the present application.
  • the embodiment of the present application is an explanation based on the above embodiment.
  • the method provided in the embodiment of the present application includes S210-S250.
  • S220 Receive a physical side link feedback channel on a physical side link feedback channel resource associated with a physical side link shared channel.
  • the reception result of the physical side link feedback channel can be determined, and according to the reception result, it is selected whether to use the channel evaluation result of the first channel access process to adjust the contention window, or to use the reception result of the physical side link feedback channel to adjust the contention window.
  • the information used to determine the contention window value for adjustment is the channel evaluation result of the first channel access process.
  • adjusting the contention window according to the channel assessment result of the first channel access process includes at least one of the following:
  • the channel assessment result includes that the channel is unavailable, the value of the contention window is increased, and the value meets a channel access priority; the channel assessment result includes that the channel is available, the value of the contention window is reduced, and the value meets a minimum value of a channel access priority.
  • the channel evaluation result of the first channel access process is that the channel is unavailable, the value of the contention window is increased based on the original value, and the value of the increased contention window meets a channel access priority.
  • the channel evaluation result of the first channel access process is that the channel is available, the value of the contention window is reduced based on the original value, and the value of the reduced contention window meets a channel access priority.
  • FIG. 3 is a parameter adjustment method provided in an embodiment of the present application.
  • Example diagram see Figure 3, as a user equipment UE1 of the first node sends PSCCH and PSSCH to at least one other user equipment in time slot n, PSCCH is used to carry side link control information, and the side link control information includes the time-frequency resource indication information of PSSCH. In addition, another part of the side link control information can also be carried on the PSSCH channel.
  • Other nodes receiving PSSCH can feedback to the first node whether the PSSCH is correctly received by sending PSFCH, and the first node sending PSSCH and other nodes receiving PSSCH can be recorded as a group of user equipment.
  • other nodes feedback confirmation (Acknowledgement, ACK) to the first node to indicate that the PSSCH is correctly received
  • other nodes feedback negative confirmation (Negative Acknowledgement, NACK) to the first node to indicate that the PSSCH is not correctly received.
  • ACK Acknowledgement
  • NACK Negative Acknowledgement
  • the first node performs a first channel access process before the PSFCH resource, and the first channel access process is performed on the unlicensed spectrum.
  • the first channel access process is used to determine whether the channel is available or idle, and the channel evaluation result of the first channel access process includes channel space, channel busy, channel unavailable, channel available, etc.
  • the first node monitors the energy of the received signal for a channel within a period of time. If the monitored energy is greater than a threshold value, the first node determines that the channel is unavailable, otherwise it determines that the channel is available.
  • the first node adjusts the CW value according to the channel assessment result of the first channel access process, and the adjustment of the CW value includes at least one of the following:
  • Adjust the CW value to a larger CW value allowed by a channel access priority adjust the CW value to a smaller CW value allowed by a channel access priority; adjust the CW value to the next larger CW value allowed by a channel access priority; adjust the CW value to the minimum value among the CW values allowed by a channel access priority; adjust the CW value to the current CW value.
  • a channel access priority refers to a channel access priority corresponding to a PSSCH sent by the first node, or a channel access priority refers to a channel access priority corresponding to a PSFCH received by the first node.
  • the value of a channel access priority p and the corresponding minimum value CW min,p and maximum value CW max,p of the CW that conforms to p are shown in Table 1 below.
  • the first node receives PSFCH on the PSFCH resource in Figure 3 and does not receive NACK, and the first node performs a first channel access process before the PSFCH resource, and its channel assessment result is that the channel is idle or the channel is available, then the first node adjusts the CW value to the minimum value of the CW value allowed by a priority value.
  • the first node receives PSFCH on the PSFCH resource in Figure 3 and does not receive NACK, and the first node performs a first channel access process before the PSFCH resource, and its channel assessment result is that the channel is busy or the channel is unavailable, then the first node adjusts the CW value to the next larger CW value allowed by the channel access priority.
  • the first node receives PSFCH on the PSFCH resource in Figure 3 and does not receive NACK.
  • the first node performs a first channel access process before the PSFCH resource.
  • the channel assessment result is that the channel is busy or the channel is unavailable, and the current CW is already the maximum allowed CW value, then the first node maintains the CW unchanged.
  • the first node may use the adjusted CW to perform a third channel access process. If the channel assessment result of the third channel access process is that the channel is available, the first node may perform side link transmission after the above-mentioned PSFCH resource.
  • the first channel access process includes at least one of the following:
  • the starting point of the first channel access process is 16us before the physical side link feedback channel resources; the starting point of the first channel access process is 25us before the physical side link feedback channel resources; the starting point of the first channel access process is within the range of 16-25us before the physical side link feedback channel resources; the starting point of the first channel access process is earlier than 25us before the physical side link feedback channel resources.
  • the first node performs a first channel access process before the physical side link channel resource.
  • the first channel access process can be a process starting from a physical side link feedback channel resource. 16us before source.
  • the starting point of the first channel access process executed by the first node is located 25 us before the physical side link feedback channel resource.
  • the starting point of the first channel access process executed by the first node is located in the range of 16-25 us before the physical side link feedback channel resource.
  • the starting point of the first channel access process performed by the first node is earlier than 25 us before the physical side link feedback channel resources.
  • FIG8 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • the embodiment of the present application is an explanation based on the above-mentioned embodiment of the application.
  • the method provided in the embodiment of the present application includes S310 - S350 .
  • S310 Send a physical edge link shared channel to at least one node including a second node.
  • S330 Receive configuration information or obtain pre-configuration information, where the configuration information or pre-configuration information includes a start time of a first channel access process.
  • the configuration information may be obtained by receiving the configuration information, and the pre-configuration information may also be obtained by reading the information in the memory.
  • the first node may receive configuration information transmitted by other nodes or pre-configuration information set by itself, and may obtain the start time of the first channel access process from the configuration information or the pre-configuration information.
  • the start time includes at least one of the following:
  • the start time is 16us before the physical side link feedback channel resource; the start time is 25us before the physical side link feedback channel resource; the start time is in the range of 16-25us before the physical side link feedback channel resource; the start time is 25us earlier than the physical side link feedback channel resource.
  • a first node sends a PSSCH to at least one node including a second node, and the first node receives a PSFCH on a PSFCH resource associated with the PSSCH, the first node performs a first channel access process before the PSFCH resource, and the first node adjusts a CW value according to a channel assessment result in the first channel access process.
  • the first node receives configuration information or obtains pre-configuration information, the configuration information or pre-configuration information includes a start time of a first channel access process, wherein the start time of the first channel access process includes at least one of the following:
  • the above configuration information generally comes from the network or base station and is sent from the network or base station to the first node by signaling.
  • the configuration information here is usually high-level configuration information.
  • the configuration information is a Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • the above pre-configuration information is generally a configuration provided by a high-level entity of the first node, such as the first node's own high-level layer.
  • the high-level layer here is relative to the physical layer, and the high-level layer here includes but is not limited to the Medium Access Control (MAC) layer, the RRC layer, etc.
  • MAC Medium Access Control
  • FIG9 is a flow chart of another parameter adjustment method provided in an embodiment of the present application.
  • the embodiment of the present application is an explanation based on the above-mentioned embodiment of the application.
  • the method provided in the embodiment of the present application includes S410 - S440 .
  • S410 Send a physical edge link shared channel to at least one node including a second node.
  • it also includes: configuring the first channel access process to be of the same type as the second channel access process, wherein the second channel access process is a channel access process performed by the second node before the physical side link feedback channel resources associated with the physical side link shared channel.
  • the second node may also perform a channel access process before the physical side link feedback channel associated with the physical side link shared channel transmitted by the first node.
  • the channel access process is recorded as the second channel access process.
  • the first channel access process of the first node may be of the same type as the second channel access process.
  • the types of the first channel access process and the second channel access process include at least one of the following:
  • Type 1 channel access process Type 2A channel access process
  • Type 2B channel access process Type 1 channel access process
  • the first node performs a first channel result process
  • the second node performs a second channel access process before receiving a physical side link feedback channel resource associated with a physical side link shared channel.
  • the first channel access process and the second channel access process may be the same, and the types of the first channel access process and the second channel access process may be one or more of a Type 1 channel access process, a Type 2A channel access process, and a Type 2B channel access process.
  • the first node sends a PSSCH to at least one node including the second node, the first node receives the PSFCH on the PSFCH resource associated with the PSSCH, the first node performs a first channel access process before the PSFCH resource, and the first node adjusts the value of the CW according to the channel assessment result in the first channel access process.
  • the second node may perform a second channel access process before the PSFCH resource associated with the PSSCH, the first channel access process is of the same type as the second channel access process, and the types of the first channel access process and the second channel access process include at least one of the following:
  • Type 1 channel access process Type 2A channel access process
  • Type 2B channel access process Type 1 channel access process
  • the first node evaluates whether the channel is available by detecting energy.
  • the type of the first channel access process and the second channel access process is a Type 1 channel access process.
  • a counter N is included, and the initial value of the counter N is a random value from 0 to the CW value.
  • the channel is judged to be available only when the number of times the channel is detected to be idle reaches N times.
  • the channel is available means that the first node can send sidelink information on the channel.
  • the first channel access process and the second channel access process are of the Type 2A channel access process.
  • the first node will determine that the channel is available only if it detects that the channel takes at least 25us and is idle.
  • Channel availability means that the first node can send sidelink information on the channel.
  • the first channel access process and the second channel access process are of the type 2B channel access process.
  • the first node will determine that the channel is available only if it detects that the channel is idle within 16us.
  • the channel is available means that the first node can send sidelink information on the channel.
  • a third channel access process is performed according to the adjusted contention window; a channel assessment result of the third channel access process is that the channel is available, and the side link information is transmitted after the physical side link feeds back the channel resources.
  • the third channel access process can be performed according to the contention window.
  • the channel evaluation result of the third channel access process is that the channel is available.
  • the first node transmits the side link information after the physical side link feeds back the channel resources.
  • a channel access priority level that the contention window complies with includes at least one of the following:
  • a channel access priority satisfied by the contention window is the channel access priority corresponding to the transmitted physical side link control channel or the channel access priority corresponding to the received physical side link feedback channel. Enter the priority.
  • Radio link failure detection in side link communication is generally designed for licensed spectrum, and there is no radio link failure detection for side links of unlicensed spectrum.
  • the radio link failure detection process of the side link of the licensed spectrum includes the first node sending PSSCH and receiving PSFCH.
  • PSFCH cannot be received
  • the first node determines that discontinuous transmission (DTX) has occurred.
  • DTX discontinuous transmission
  • RLF radio link failure
  • the radio link failure detection of the side link of the licensed spectrum is applied to the unlicensed spectrum, there will be problems.
  • the second node receives the PSSCH sent by the first node, the second node needs to perform channel assessment before sending PSFCH.
  • an embodiment of the present application provides a parameter adjustment method to implement information adjustment under unlicensed spectrum, thereby facilitating wireless link failure detection.
  • Figure 10 is a flowchart of another parameter adjustment method provided in an embodiment of the present application.
  • the embodiment of the present application can be applicable to the situation of information adjustment in wireless link failure detection under unlicensed spectrum.
  • the method can be executed by a parameter adjustment device, which can be implemented by software and/or hardware and is generally integrated in a terminal device or a base station.
  • the method provided in an embodiment of the present application includes S510-S540.
  • S510 Send a physical edge link shared channel to at least one node including a second node.
  • S520 Receive a physical side link feedback channel at a reception timing of a physical side link feedback channel associated with a physical side link shared channel.
  • the reception timing may be a timing at which the first node receives a physical side link feedback channel associated with the physical side link shared channel.
  • the physical side link feedback channel may be monitored at the reception timing of the physical side link feedback channel corresponding to the physical side link shared channel sent by the first node.
  • S530 Perform a channel access process before receiving the physical side link feedback channel.
  • the first node performs a channel access process before receiving the physical edge link feedback channel to determine a channel evaluation result.
  • the variable is used to determine whether a wireless link failure has occurred, and the variable may change as the number of DTX increases.
  • the first node can adjust the variable according to the reception result of the physical edge link feedback channel and the channel evaluation result of the executed channel access process, so as to realize wireless link failure detection.
  • the adjustment may include increasing the variable by 1 based on the original value or the variable not changing based on the original value.
  • the variable may be the value of a counter.
  • the reception result of the physical side link feedback channel includes at least one of the following: no PSFCH is received at a PSFCH reception opportunity, PSFCH is received at a PSFCH reception opportunity, PSFCH is received at a PSFCH reception opportunity and the received PSFCH is ACK, and PSFCH is received at a PSFCH reception opportunity and the received PSFCH is NACK.
  • the first node sends a physical side link shared channel, receives a physical side link feedback channel at a reception timing of a physical side link feedback channel associated with the physical side link shared channel, performs a channel access process before the reception timing, and determines the addend of a variable used to determine the occurrence of a wireless link failure according to the reception result of the physical side link feedback channel and the channel evaluation result of the channel access process.
  • the addend is 1 or 0.
  • the reception result of the physical side link channel includes at least one of the following: not receiving PSFCH at a PSFCH reception timing, receiving PSFCH at a PSFCH reception timing, receiving PSFCH at a PSFCH reception timing and receiving PSFCH as ACK, receiving PSFCH at a PSFCH reception timing and receiving PSFCH as NACK.
  • PSFCH is used to feedback Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK), and HARQ-ACK includes two states of ACK and NACK.
  • HARQ-ACK includes two states of ACK and NACK.
  • the channel evaluation result of the physical side link channel access process includes at least one of the following: channel available, channel unavailable.
  • the aforementioned variable may be marked as numConsecutiveDTX, and the addend is 1.
  • the first node determines whether to perform an operation of adding the addend to the variable numConsecutiveDTX, and if the addend is 1, after performing an operation of adding the addend 1 to numConsecutiveDTX, the value of numConsecutiveDTX increases by 1.
  • a variable here may also be expressed as a counter.
  • FIG11 is a flowchart of another parameter adjustment method provided in an embodiment of the present application.
  • the embodiment of the present application is an explanation based on the above embodiment.
  • the method provided in the embodiment of the present application includes S610 - S640 .
  • S610 Send a physical edge link shared channel to at least one node including a second node.
  • S620 Receive a physical side link feedback channel at a reception timing of a physical side link feedback channel associated with a physical side link shared channel.
  • S630 Perform a channel access process before receiving a physical side link feedback channel.
  • S640 The physical side link feedback channel is not received at the reception timing of the physical side link feedback channel. If the channel assessment result of the channel access process executed before the receiving opportunity is that the channel is available, the variable is incremented by 1.
  • the reception result of the physical side link feedback channel is that the physical side link feedback channel is not received
  • the channel evaluation result of the channel access process is that the channel is available
  • the first node is set to increment a variable for determining whether a wireless link failure has occurred, that is, the variable is increased by 1 based on the original value.
  • the first node sends a physical side link shared channel, receives a physical side link feedback channel at a reception timing of a physical side link feedback channel associated with the physical side link shared channel, performs a channel access process before the reception timing, and determines a variable or counter addend for judging the occurrence of a wireless link failure according to the reception result of the physical side link feedback channel and the channel evaluation result of the channel access process. If the first node does not receive a PSFCH at a PSFCH reception timing, and the result of the channel access process performed before the PSFCH reception timing is that the channel is available, the addend of the variable is 1. That is, the value of the addend is 1. At this time, the value of numConsecutiveDTX increases by 1.
  • the first node replaces the second node in performing the channel evaluation of the channel access process, and the channel evaluation result is that the channel is available.
  • the reason why the first node did not receive the PSFCH sent by the second node is that the first node believes that the PSFCH sent by the second node was not received due to the occurrence of DTX, rather than the failure to send PSFCH due to the failure of the second node channel access.
  • DTX here refers to the reception failure corresponding to the SCI sent by the first node, where SCI is the control information used to indicate PSSCH.
  • FIG12 is a flowchart of another parameter adjustment method provided in an embodiment of the present application.
  • the embodiment of the present application is an explanation based on the above embodiment.
  • the method provided in the embodiment of the present application includes S710 - S740.
  • S720 Receive a physical side link feedback channel at a reception timing of a physical side link feedback channel associated with a physical side link shared channel.
  • S730 Perform a channel access process before a reception timing of a physical side link feedback channel.
  • the variable increases by 1, wherein one event includes: a physical side link feedback channel is not received at a reception timing of a physical side link feedback channel, and a channel evaluation result of a channel access process performed before the reception timing is that the channel is unavailable.
  • the first node detects that the physical side link feedback channel is not received at the reception opportunity of the physical side link feedback channel M times, and the channel evaluation result of the channel access process performed before the reception opportunity is that the channel is unavailable, and a variable used to determine whether a wireless link failure has occurred is incremented by 1, where M is a positive integer.
  • the value of M is a positive integer, and M includes at least one of the following:
  • the value of M is a preset fixed value; the value of M is included in the pre-configuration signaling; the value of M is included in the configuration signaling.
  • the first node sends a physical side link shared channel, receives a physical side link feedback channel at the reception timing of the physical side link feedback channel associated with the physical side link shared channel, and the first node performs a channel access process before the reception timing.
  • the first node determines the addend of a variable or counter used to determine the occurrence of a wireless link failure based on the reception result of the physical side link feedback channel and the channel evaluation result of the channel access process.
  • the first node determines the addend of the variable based on the reception result of the physical side link channel and the result of the channel access process, including that if the following M events occur, the variable is added by 1: the first node does not receive the PSFCH at a PSFCH reception timing, and the result of the channel access process performed before the PSFCH reception timing is that the channel is unavailable.
  • the value of the addend corresponding to the variable is 1, and the variable is marked as numConsecutiveDTX.
  • numConsecutiveDTX is added by 1.
  • the above events are recounted, and when the above M events occur again, numConsecutiveDTX is added by 1 again.
  • the process is executed in a loop.
  • the value of M is a preset fixed value, the value of M is included in the pre-configuration signaling, and the value of M is included in the configuration signaling.
  • the above-mentioned configuration signaling generally comes from the network or base station, and is sent from the network or base station to the first node by signaling. In other words, the first node obtains the value of M by receiving the configuration signaling.
  • the configuration signaling here is usually high-level configuration information, and the high-level here is relative to the physical layer.
  • the configuration signaling is an RRC message.
  • the above-mentioned pre-configuration is generally a configuration provided by a high-level entity of the first node, such as the high-level of the first node itself.
  • the high-level is relative to the physical layer, and the high-level here includes but is not limited to the MAC layer, the RRC layer, etc.
  • the hybrid automatic repeat request entity indicates to the radio resource control layer that a radio link failure is detected.
  • the first node determines that the value of a variable used to determine whether a radio link failure has occurred is greater than a first threshold value, the first node determines that RLF has occurred, and a hybrid automatic repeat request (HARQ) entity of the first node indicates the radio link failure to its radio link control layer.
  • HARQ hybrid automatic repeat request
  • the first node sends a physical side link shared channel, receives a physical side link feedback channel at the reception timing of a physical side link feedback channel associated with the physical side link shared channel, performs a channel access process before the reception timing, and determines a variable or counter addend for judging the occurrence of a radio link failure based on the reception result of the physical side link feedback channel and the channel evaluation result of the channel access process.
  • the HARQ entity of the first node indicates RLF detection to its RRC layer.
  • the variable can be marked as numConsecutiveDTX
  • the threshold value can be marked as MaxnumConsecutiveDTX.
  • MaxnumConsecutiveDTX is at least one of the following: the value of MaxnumConsecutiveDTX is a preset fixed value, the value of MaxnumConsecutiveDTX is included in the pre-configuration signaling, and the value of MaxnumConsecutiveDTX is included in the configuration signaling.
  • the physical side link feedback channel is received at a reception opportunity of the physical side link feedback channel, and the variable is initialized to zero.
  • the first node receives a PSFCH associated with a transmitted PSSCH at a PSFCH reception timing, and the first node sets a variable used to determine the occurrence of a radio link failure to zero.
  • a counter corresponding to a variable used to determine the occurrence of a radio link failure may be initialized to 0.
  • FIG13 is a schematic diagram of the structure of a parameter adjustment device provided in an embodiment of the present application.
  • the device can execute the parameter adjustment method provided in any embodiment of the present application, and has the corresponding functional modules and beneficial effects of the execution method.
  • the device can be implemented by software and/or hardware, and is generally integrated in a terminal or a base station.
  • the device provided in an embodiment of the present application includes: a first shared channel module 801, a first feedback channel module 802, a first channel access module 803, and a contention window adjustment module 804.
  • the first shared channel module 801 is configured to send a physical side link shared channel to at least one node including a second node.
  • the first feedback channel module 802 is configured to receive a physical side link feedback channel on a physical side link feedback channel resource associated with the physical side link shared channel.
  • the first channel access module 803 is used to perform a first channel access process before the physical side link feeds back channel resources.
  • the contention window adjustment module 804 is used to adjust the contention window according to the channel evaluation result of the first channel access process.
  • the contention window adjustment module 804 includes:
  • An adjustment judgment unit is used to determine whether to adjust the contention window according to the channel evaluation result of the first channel access process based on the reception result of the physical side link feedback channel on the physical side link feedback channel resource.
  • An adjustment execution unit is used to determine, when the receiving result is that no negative confirmation is received, to adjust the contention window according to the channel assessment result of the first channel access process.
  • the adjustment of the contention window includes at least one of the following:
  • the contention window adjustment module 804 is also used for: if the channel evaluation result includes that the channel is unavailable, increasing the value of the contention window, and the value meets a channel access priority; if the channel evaluation result includes that the channel is available, reducing the value of the contention window, and the value meets a minimum value of a channel access priority.
  • the first channel access process includes at least one of the following:
  • the starting point of the first channel access process is 16us before the physical side link feedback channel resource; the starting point of the first channel access process is 25us before the physical side link feedback channel resource; the starting point of the first channel access process is within the range of 16-25us before the physical side link feedback channel resource; the starting point of the first channel access process is earlier than 25us before the physical side link feedback channel resource.
  • the information adjustment device further includes: a configuration module, configured to receive configuration information or obtain pre-configuration information, wherein the configuration information or pre-configuration information includes the start time of the first channel access process.
  • the start time includes at least one of the following:
  • the start time is 16us before the physical side link feedback channel resource; the start time is 25us before the physical side link feedback channel resource; the start time is in the range of 16-25us before the physical side link feedback channel resource; the start time is 25us earlier than the physical side link feedback channel resource.
  • the device also includes: configuring the first channel access process to be of the same type as the second channel access process, wherein the second channel access process is a channel access process performed by the second node before the physical side link feedback channel resources associated with the physical side link shared channel.
  • the types of the first channel access process and the second channel access process include at least one of the following:
  • Type 1 channel access process Type 2A channel access process
  • Type 2B channel access process Type 1 channel access process
  • the parameter adjustment device also includes: a transmission module, used to perform a third channel access process according to the adjusted contention window; the channel assessment result of the third channel access process is that the channel is available, and the side link information is transmitted after the physical side link feedback channel resources.
  • a channel access priority that the contention window complies with includes at least one of the following: a channel access priority corresponding to a transmitted physical side link control channel; a channel access priority corresponding to a received physical side link feedback channel.
  • FIG14 is a schematic diagram of the structure of another parameter adjustment device provided in an embodiment of the present application.
  • the device can execute the parameter adjustment method provided in any embodiment of the present application, and has a functional module and a corresponding function module for executing the method. Beneficial effect.
  • the device can be implemented by software and/or hardware, and is generally integrated in a terminal or a base station.
  • the device provided in the embodiment of the present application includes: a second shared channel module 901, a second feedback channel module 902, a channel access module 903, and a variable adjustment module 904.
  • the second shared channel module 901 is configured to send a physical edge link shared channel to at least one node including a second node.
  • the second feedback channel module 902 is configured to receive a physical side link feedback channel at a reception timing of the physical side link feedback channel associated with the physical side link shared channel.
  • the channel access module 903 is used to perform a channel access process before the reception timing of the physical side link feedback channel.
  • variable adjustment module 904 is used to adjust variables according to the reception result of the physical edge link feedback channel and the channel evaluation result of the channel access process, wherein the variables are used to determine whether a wireless link failure has occurred.
  • variable adjustment module 904 is used to: if the physical side link feedback channel is not received at the reception timing of the physical side link feedback channel, and the channel evaluation result of the channel access process performed before the reception timing is that the channel is available, the variable is incremented by 1.
  • variable adjustment module 904 is also used for: when M events occur, the variable is incremented by 1, wherein one of the events includes: the physical side link feedback channel is not received at the reception timing of the physical side link feedback channel, and the channel evaluation result of the channel access process performed before the reception timing is that the channel is unavailable.
  • the value of M is a positive integer, and M includes at least one of the following:
  • the value of M is a preset fixed value; the value of M is included in the pre-configuration signaling; the value of M is included in the configuration signaling.
  • the parameter adjustment device further includes: a failure indication module, configured to, when the value of the variable is greater than a first threshold value, cause the hybrid automatic repeat request entity to indicate to the radio resource control layer that a radio link failure has been detected.
  • a failure indication module configured to, when the value of the variable is greater than a first threshold value, cause the hybrid automatic repeat request entity to indicate to the radio resource control layer that a radio link failure has been detected.
  • the parameter adjustment device further includes: a variable initialization module, configured to initialize the variable to zero upon receiving the physical side link feedback channel at a reception timing of the physical side link feedback channel.
  • FIG15 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application, wherein the electronic device includes a processor 10, a memory 11, an input device 12, and an output device 13; the number of processors 10 in the electronic device may be one or more, and FIG15 takes one processor 10 as an example; the processor 10, the memory 11, the input device 12, and the output device 13 in the electronic device may be connected by a bus or other means, and FIG15 Take the example of connecting via a bus.
  • the memory 11, as a computer-readable storage medium, can be used to store software programs, computer executable programs and modules, such as the program corresponding to the method in the embodiment of the present application, and the module corresponding to the device in the embodiment of the present application (the first shared channel module 801, the first feedback channel module 802, the first channel access module 803 and the contention window adjustment module 804, and/or, the second shared channel module 901, the second feedback channel module 902, the channel access module 903 and the variable adjustment module 904).
  • the processor 10 executes various functions and data processing of the electronic device by running the software programs, instructions and modules stored in the memory 11, that is, implementing the above method.
  • the memory 11 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and programs required for at least one function; the data storage area may store data created according to the use of the electronic device, etc.
  • the memory 11 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.
  • the memory 11 may include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the electronic device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the input device 12 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the electronic device.
  • the output device 13 may include a display device such as a display screen.
  • An embodiment of the present application also provides a storage medium containing computer executable instructions, and the computer executable instructions are used to perform a parameter adjustment method when executed by a computer processor.
  • the parameter adjustment method includes:
  • a physical side link shared channel is sent to at least one node including a second node; a physical side link feedback channel is received on a physical side link feedback channel resource associated with the physical side link shared channel; a first channel access process is performed before the physical side link feedback channel resource; and a contention window is adjusted according to a channel evaluation result of the first channel access process.
  • the parameter adjustment method includes:
  • a physical side link shared channel is sent to at least one node including a second node; a physical side link feedback channel is received at a reception timing of a physical side link feedback channel associated with the physical side link shared channel; a channel access process is performed before a reception timing of the physical side link feedback channel; and a variable is adjusted according to a reception result of the physical side link feedback channel and a channel evaluation result of the channel access process, wherein the variable is used to determine whether a wireless link failure has occurred.
  • the technicians in the relevant field can clearly understand that the present application can be implemented by means of software and necessary general hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method.
  • the technical solution of the present application is essentially Or it can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.
  • a computer-readable storage medium such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc.
  • the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or operation may be performed by several physical components in cooperation.
  • Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit.
  • the corresponding software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium).
  • computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data).
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

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Abstract

本申请提供参数调整方法、电子设备和存储介质。该参数调整方法包括：向包括第二节点的至少一个节点发送物理边链路共享信道；在所述物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道；在所述物理边链路反馈信道资源之前执行第一信道接入过程；根据所述第一信道接入过程的信道评估结果调整竞争窗。

Description

参数调整方法、电子设备和存储介质 技术领域
本申请涉及无线通信技术领域，例如涉及参数参数调整方法、电子设备和存储介质。
背景技术
在边链路(SideLink，SL)通信系统中，用户设备(User Equipment，UE)之间业务传输可以不经过网络侧，也就是业务传输不经过UE与基站之间的蜂窝链路转发，可以由数据源UE通过SL传输给目标UE。SL通信的应用包括设备到设备(Device to Device，D2D)通信和车联网(Vehicle to Everything，V2E)通信、车与人(Vehicle to Pedestrian，V2P)通信、车与路(Vehicle to Infrastructure，V2I)通信等。对于能够应用SL通信的近距离通信用户来说，SL通信不但节省无线频谱资源，而且降低了核心网的数据传输压力，能够减少系统资源占用，增加蜂窝通信系统频谱效率，降低通信延迟，降低了网络运营成本。
但是SL通信中并未考虑非授权频谱。在SL通信中，一个时隙可以包括一些SL信道，一个时隙内的SL信道包括物理边链路控制信道(Physical Sidelink Control Channel，PSCCH)、物理边链路共享信道(Physical Sidelink Shared Channel，PSSCH)以及物理边链路反馈信道(Physical Sidelink Feedback Channel，PSFCH)。此外，一个时隙还包括整个符号都不发送任何SL信道的正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号。
在非授权频谱上，先听后说(Listen Before Talk，LBT)成功的信道才能进行传输，此外在LBT基站中，通信节点在信息传输之前，执行信道接入过程，只有监听为信道空闲，该通信节点才可以进行信息传输。在非授权频谱，需要基于一些信息对特定参数进行调整，然而由于LBT过程，用于调整特定参数的这些信息可能缺失，导致无法对特定参数进行调整。
发明内容
本申请实施例提出参数调整方法、电子设备和存储介质，以实现非授权频谱上对特定参数的调整，降低特定参数取值确定的困难程度，可增强通信质量。
本申请实施例提供了一种参数调整方法，该方法包括：
向包括第二节点的至少一个节点发送物理边链路共享信道；在所述物理边 链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道；在所述物理边链路反馈信道资源之前执行第一信道接入过程；根据所述第一信道接入过程的信道评估结果调整竞争窗。
本申请实施例还提供了另一种参数调整方法，该方法包括：
向包括第二节点的至少一个节点发送物理边链路共享信道；在所述物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道；在所述物理边链路反馈信道的接收时机之前执行信道接入过程；根据所述物理边链路反馈信道的接收结果和所述信道接入过程的信道评估结果调整变量，其中，所述变量用于判断发生无线链路失败。
本申请实施例还提供了一种电子设备，该电子设备包括：
一个或多个处理器；存储器，用于存储一个或多个程序；当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如本申请实施例中任一所述参数调整方法。
本申请实施例还提供了一种计算机可读存储介质，其中，该计算机可读存储介质存储有一个或多个程序，所述一个或多个程序，被所述一个或多个处理器执行，使得所述一个或多个处理器实现如本申请实施例中任一项所述参数调整方法。
附图说明
图1是本申请实施例提供的一种参数调整方法的流程图；
图2是本申请实施例提供的另一种参数调整方法的流程图；
图3是本申请实施例提供的一种参数调整的示例图；
图4是本申请实施例提供的一种第一信道接入过程起点的示例图；
图5是本申请实施例提供的另一种第一信道接入过程起点的示例图；
图6是本申请实施例提供的另一种第一信道接入过程起点的示例图；
图7是本申请实施例提供的另一种第一信道接入过程起点的示例图；
图8是本申请实施例提供的另一种参数调整方法的流程图；
图9是本申请实施例提供的另一种参数调整方法的流程图；
图10是本申请实施例提供的另一种参数调整方法的流程图；
图11是本申请实施例提供的另一种参数调整方法的流程图；
图12是本申请实施例提供的另一种参数调整方法的流程图；
图13是本申请实施例提供的一种参数调整装置的结构示意图；
图14是本申请实施例提供的另一种参数调整装置的结构示意图；
图15是本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
此处所描述的具体实施仅仅用于解释本申请。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”后缀仅为了有利于本申请的说明，其本身没有特有的意义，因此，“模块”、“部件”或“单元”可以混合地使用。
边链路通信，如长期演进(Long Term Evolution，LTE)sidelink，新无线(New Radio，NR)sidelink支持两种资源分配方法，分别为基站调度模式(如LTE mode3，NR mode1)和UE自主选择资源模式(如LTE mode4，NR mode2)。在基站调度方式中，其资源由基站分配并指示给UE。而UE自主选择资源则由UE通过监听资源池内的资源使用情况选择空闲资源用作通信。
另外，边链路通信也支持在智能交通系统(Intelligent Traffic System，ITS)频谱、授权频谱，以及未来可以在非授权频率上工作。在非授权频谱中，支持Type1信道接入过程，在Type1信道接入过程中，包括一个计数器N，该计数器N的初始值为0到竞争窗(Contention Window，CW)值中的一个随机值，在Type1信道接入过程中，检测到信道空闲的次数达到N次才会判断信道可用。第一节点可以在该信道上发送边链路信息。该过程中可以通过ACK和NACK调整CW值。
但是在边链路通信系统中，一个用户设备向至少一个其他用户设备发送PSSCH时，支持NACK only反馈，也即，在接收到PSSCH的用户设备中，仅未正确接收PSSCH的用户设备反馈NACK，那些正确接收该PSSCH的用户设备不进行任何反馈，未正确接PSSCH的用户设备可以在一个公共的PSFCH资源上反馈NACK，这种NACK only反馈中，如何使用传统的ACK和NACK调整CW值，存在由于信道接入失败NACK无法反馈的问题，导致用户设备无法确定CW值，本申请提供了一种参数调整方法来确定CW值。
图1是本申请实施例提供的一种参数调整方法的流程图，本申请实施例可适用于边链路通信的NACK only反馈中调整CW值的情况，该方法可以由参数调整装置来执行，该装置可以通过软件和/或硬件的方式实现，一般集成在终端设备或基站中，参见图1，本申请实施例提供的方法包括如下S110-S140。
S110、向包括第二节点的至少一个节点发送物理边链路共享信道。
在本申请实施例中，第一节点可以向其他设备传输物理边链路共享信道，其中，其他设备中可以包括第二节点。在一些实施例中，第一节点可以在时隙内向一个或多个设备传输PSSCH，该PSSCH中可以用于承载边链路控制信息(Sidelink Control Information，SCI)，SCI包括PSSCH的时频资源指示信息。
S120、在物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道。
在本申请实施例中，第一节点可以在与上述物理边链路共享信道关联的物理边链路反馈信道资源上监听物理边链路反馈信息。
S130、在物理边链路反馈信道资源之前执行第一信道接入过程。
在本申请实施例中，第一节点可以在物理边链路反馈信道资源之前的非授权频谱上进行第一信道接入过程，该第一信道接入过程可以用于判断信道是否空闲或信道是否可用。第一信道接入过程可以生成信道评估结果，该信道评估结果可以包括信道空闲、信道忙、信道不可用、信道可用等。
S140、根据第一信道接入过程的信道评估结果调整竞争窗。
竞争窗可以用于资源竞争，例如，获取非授权频谱。竞争窗用于确定信道接入过程中的空闲次数计数器的初始化值。在某些类型的信道接入过程中，判断为信道可用的条件包括该空闲次数计数器减一计数为零。
在本申请实施例中，可以按照第一信道接入过程的信道评估结果对竞争窗的取值进行调整，该调整可以包括在原有取值的基础增大数值、在原有取值的基础上减小数值，或者保持原有取值。
在一些实施例中，竞争窗的调整包括以下至少之一：
增大竞争窗的取值，且取值符合一个信道接入优先级；减小竞争窗的取值，且取值符合一个信道接入优先级；调整竞争窗的取值，且取值为符合一个信道接入优先级的竞争窗取值中大于当前竞争窗值中的最小值；调整竞争窗的取值，且取值为符合一个信道接入优先级的最小值；调整竞争窗的取值为当前竞争窗值。
在本申请实施例中，竞争窗的调整可以包括增大竞争窗的取值，增大后的取值符合一个信道接入优先级的要求；竞争窗的调整还可以包括减小竞争窗的取值，减小后的取值符合一个信道接入优先级的要求；竞争窗的调整可以包括增大竞争窗的取值，使得增加后的取值大于调整前当前竞争窗值的最小值；竞争窗的调整可以包括减小竞争窗的取值，减小后的取值符合一个信道优先级的最小值；竞争窗的调整还可以包括不对取值进行调整，使得竞争窗仍符合当前竞争窗值。
在一些实施例中，一个信道接入优先级可以包括第一节点发送的物理边链路共享信道对应的信道接入优先级。在另一些实施例中，一个信道接入优先级可以为第一节点接收的物理边链路反馈信道对应的信道接入优先级。
在一些实施例中，图2是本申请实施例提供的另一种参数调整方法的流程图，本申请实施例是在上述实施例基础上的说明，参见图2，本申请实施例提供的方法包括S210-S250。
S210、向包括第二节点的至少一个节点发送物理边链路共享信道。
S220、在物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道。
S230、基于物理边链路反馈信道资源上的物理边链路反馈信道的接收结果确定是否根据第一信道接入过程的信道评估结果调整竞争窗。
在本申请实施例中，可以对物理边链路反馈信道的接收结果进行确定，按照接收结果的情况选择是使用第一信道接入过程的信道评估结果对竞争窗进行调整，还是使用物理边链路反馈信道的接收结果对竞争窗进行调整。
S240、接收结果为未收到否定性确认，确定根据第一信道接入过程的信道评估结果调整竞争窗。
在本申请实施例中，物理边链路反馈信道的接收结果为未收到否定性确认(NACK)，则确定竞争窗取值进行调整所使用的信息，为第一信道接入过程的信道评估结果。
S250、根据第一信道接入过程的信道评估结果调整竞争窗。
在一些实施例中，根据所述第一信道接入过程的信道评估结果调整竞争窗，包括以下至少之一：
所述信道评估结果包括信道不可用，增大所述竞争窗的取值，且所述取值符合一个信道接入优先级；所述信道评估结果包括信道可用，减小所述竞争窗的取值，且所述取值符合一个信道接入优先级的最小值。
在本申请实施例中，第一信道接入过程的信道评估结果为信道不可用，将竞争窗的取值在原有取值的基础上增大，且增大后的竞争窗的取值符合一个信道接入优先级，第一信道接入过程的信道评估结果为信道可用，将竞争窗的取值在原有取值的基础上进行减小，且减小后的竞争窗的取值符合一个信道接入优先级。
在一个示例性的实施方式中，图3是本申请实施例提供的一种参数调整的 示例图，参见图3，作为第一节点的一个用户设备UE1在时隙n向至少一个其他用户设备发送PSCCH和PSSCH，PSCCH用于承载边链路控制信息，边链路控制信息包括PSSCH的时频资源指示信息。另外，边链路控制信息的另一部分还可以承载在PSSCH信道上。接收PSSCH的其他节点，可以通过发送PSFCH向第一节点反馈该PSSCH是否被正确接收，可以将发送PSSCH的第一节点以及接收PSSCH的其他节点记为一组用户设备。在一些实施例中，其他节点向第一节点反馈确认(Acknowledgement，ACK)表示PSSCH被正确接收，其他节点向第一节点反馈否定确认(Negative Acknowledgement，NACK)表示PSSCH未被正确接收。在另一些实施例中，接收PSSCH的其他节点中，只有未正确接收PSSCH的节点反馈NACK，正确接收PSSCH的节点既不反馈ACK也不反馈NACK。
第一节点在PSFCH资源之前执行第一信道接入过程，该第一信道接入过程在非授权频谱上执行。第一信道接入过程用于判断信道是否可用或是否空闲，第一信道接入过程的信道评估结果包括信道空间、信道忙、信道不可用、信道可用等。在一些实施例中，第一节点在一段时间内针对一个信道监测接收信号的能量，如果监测到的能量大于门限值，则第一节点判断该信道不可用，否则判断该信道可用。
第一节点根据第一信道接入过程的信道评估结果调整CW值，CW值的调整包括以下至少之一：
调整CW值到一个信道接入优先级所允许一个更大的CW值；调整CW值到一个信道接入优先级所允许一个更小的CW值；调整CW值到一个信道接入优先级所允许下一个更大的CW值；调整CW值到一个信道接入优先级所允许的CW值中的最小值；调整CW值为当前CW值。
在一些实施例中，一个信道接入优先级是指上述第一节点发送的PSSCH对应的信道接入优先级，或者，一个信道接入优先级是指上述第一节点所接收的PSFCH对应的信道接入优先级。
在一些实施例中，一个信道接入优先级p的取值以及对应符合p的CW的最小值CWmin,p以及最大值CWmax,p如下表1。
表1信道接入优先级p对应的允许的CW值
在一实施例中，第一节点在图3中的PSFCH资源上接收PSFCH，且未接收到NACK，以及第一节点在PSFCH资源之前执行第一信道接入过程，其信道评估结果为信道空闲或信道可用，则第一节点调整CW值到一个优先级值所允许的CW值中的最小值。
在一实施例中，第一节点在图3中的PSFCH资源上接收PSFCH、且未接收到NACK，以及第一节点在PSFCH资源之前执行第一信道接入过程，其信道评估结果为信道忙或信道不可用，则第一节点调整CW值到一个信道接入优先级所允许下一个更大的CW值。
在一实施例中，第一节点在图3中的PSFCH资源上接收PSFCH、且未接收到NACK，第一节点在PSFCH资源之前执行第一信道接入过程，其信道评估结果为信道忙或信道不可用、且当前CW已经是所允许的最大的CW值，则第一节点维持CW不变。
在获取调整后的CW值后，第一节点可以使用该调整的CW执行第三信道接入过程。如果第三信道接入过程的信道评估结果为信道可用，则第一节点可以在上述PSFCH资源之后进行边链路传输。
在一些实施例中，第一信道接入过程包括以下至少之一：
第一信道接入过程的起点位于物理边链路反馈信道资源之前的16us；第一信道接入过程的起点位于物理边链路反馈信道资源之前的25us；第一信道接入过程的起点位于物理边链路反馈信道资源之前的16-25us范围内；第一信道接入过程的起点早于物理边链路反馈信道资源之前的25us。
在本申请实施例中，第一节点在物理边链路信道资源之前执行第一信道接入过程，参见图4，该第一信道接入过程可以为起点位于物理边链路反馈信道资 源之前的16us。
在另一实施例中，参见图5，第一节点执行的第一信道接入过程的起点位于物理边链路反馈信道资源之前的25us。
在另一实施例中，参见图6，第一节点执行的第一信道接入过程的起点位于物理边链路反馈信道资源之前的16-25us范围。
在另一实施例中，参见图7，第一节点执行的第一信道接入过程的起点早于物理边链路反馈信道资源之前的25us。
图8是本申请实施例提供的另一种参数调整方法的流程图，本申请实施例是在上述申请实施例基础上的说明，参见图8，本申请实施例提供的方法包括S310-S350。
S310、向包括第二节点的至少一个节点发送物理边链路共享信道。
S320、在物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道。
S330、接收配置信息或获取预配置信息，配置信息或预配置信息包括第一信道接入过程的开始时间。
配置信息可以是通过接收配置信息的方式进行获取，预配置信息还可以包括通过读取内存中的信息进行获取。
在本申请实施例中，第一节点可以接收其他节点传输的配置信息或者自身设置的预配置信息，可以在配置信息或预配置信息中获取第一信道接入过程的开始时间。
在一些实施例中，开始时间包括以下至少之一：
开始时间位于物理边链路反馈信道资源之前的16us；开始时间位于物理边链路反馈信道资源之前的25us；开始时间位于物理边链路反馈信道资源之前的16-25us范围；开始时间早于物理边链路反馈信道资源的25us。
S340、在物理边链路反馈信道资源之前执行第一信道接入过程。
S350、根据第一信道接入过程的信道评估结果调整竞争窗。
在一个示例性的实施方式中，第一节点向至少一个包括第二节点的节点发送PSSCH，以及第一节点在该PSSCH所关联的PSFCH资源上接收PSFCH，第一节点在PSFCH资源之前执行第一信道接入过程，第一节点根据第一信道接入过程中的信道评估结果调整CW的值。在执行第一接入过程之前，第一节点接收配置信息或获取预配置信息，该配置信息或预配置信息包括第一执行信道接入过程的开始时间，其中，第一信道接入过程的开始时间包括以下至少之一：
位于上述PSSCH所关联的PSFCH资源之前的16us；位于上述PSSCH所关联的PSFCH资源之前的25us；位于上述PSSCH所关联的PSFCH资源之前的16～25us；早于上述PSSCH所关联的PSFCH资源之前的25us。
关于上述配置信息，一般来自于网络或基站，通过信令的方式从网络或基站发送给第一节点。这里的配置信息通常为高层配置信息。在一些实施例中，配置信息为无线资源控制(Radio Resource Control，RRC)消息。关于上述预配置信息一般为第一节点的高层实体提供的配置，例如第一节点自己的高层等。这里的高层是相对物理层而言的，这里的高层包括但不限于媒体接入控制(Medium Access Control，MAC)层、RRC层等。
图9是本申请实施例提供的另一种参数调整方法的流程图，本申请实施例是在上述申请实施例基础上的说明，参见图9，本申请实施例提供的方法包括S410-S440。
S410、向包括第二节点的至少一个节点发送物理边链路共享信道。
S420、在物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道。
S430、在物理边链路反馈信道资源之前执行第一信道接入过程。
S440、根据第一信道接入过程的信道评估结果调整竞争窗。
在一些实施例中，还包括：配置所述第一信道接入过程与第二信道接入过程的类型相同，其中，所述第二信道接入过程为所述第二节点在所述物理边链路共享信道关联的物理边链路反馈信道资源之前执行的信道接入过程。
本申请实施例中，第二节点也可以在第一节点传输的物理边链路共享信道关联的物理边链路反馈信道之前进行信道接入过程，该信道接入过程记为第二信道接入过程，第一节点的第一信道接入过程可以与第二信道接入过程与的类型相同。
在一些申请实施例中，第一信道接入过程与第二信道接入过程的类型包括以下至少之一：
Type1信道接入过程；Type2A信道接入过程；Type2B信道接入过程。
在本申请实施例中，第一节点执行第一信道结果过程，以及第二节点在接收到的物理边链路共享信道关联的物理边链路反馈信道资源之前执行第二信道接入过程。第一信道接入过程与第二信道接入过程可以相同，第一信道接入过程以及第二信道接入过程的类型可以为Type1信道接入过程、Type2A信道接入过程、Type2B信道接入过程中的一种或多种。
在一些实施例中，第一节点向包含第二节点的至少一个节点发送PSSCH，第一节点在PSSCH所关联的PSFCH资源上接收PSFCH，第一节点在PSFCH资源之前执行第一信道接入过程，第一节点根据第一信道接入过程中的信道评估结果调整CW的值。其中，上述第二节点在PSSCH所关联的PSFCH资源之前可以执行第二信道接入过程，该第一信道接入过程与第二信道接入过程的类型相同，第一信道接入过程以及第二信道接入过程的类型包括以下至少之一：
Type 1信道接入过程；Type 2A信道接入过程；Type 2B信道接入过程。
在第一信道接入过程中，第一节点通过能量的检测评估信道是否可用。
在第一信道接入过程和第二信道接入过程的类型为Type 1信道接入过程，在Type 1信道接入过程中，包括一个计数器N，该计数器N的初始值为0到CW值中的一个随机值。在Type 1信道接入过程中，检测到信道空闲的次数达到N次，才会判断信道可用。信道可用是指第一节点可以在该信道上发送sidelink信息。
在第一信道接入过程和第二信道接入过程的类型为Type 2A信道接入过程，在Type 2A信道接入过程中，第一节点检测信道的时间至少达到25us、且检测到信道空闲，才会判断为信道可用。信道可用是指第一节点可以在该信道上发送sidelink信息。
在第一信道接入过程和第二信道接入过程的类型为Type 2B信道接入过程，在Type 2B信道接入过程中，第一节点在16us内监测到信道空闲，才会判断为信道可用。信道可用是指第一节点可以在该信道上发送sidelink信息。
在上述申请实施例的基础上，还包括：
根据调整的竞争窗执行第三信道接入过程；第三信道接入过程的信道评估结果为信道可用，在物理边链路反馈信道资源之后传输边链路信息。
在本申请实施例中，第一节点调整竞争窗的取值后，可以按照竞争窗进行第三信道接入过程，第三信道接入过程的信道评估结果为信道可用，第一节点在物理边链路反馈信道资源之后传输边链路信息。
在上述申请实施例的基础上，竞争窗符合的一个信道接入优先级包括以下至少之一：
发送的物理边链路控制信道对应的信道接入优先级；接收的物理边链路反馈信道对应的信道接入优先级。
在本申请实施例中，竞争窗满足的一个信道接入优先级为发送的物理边链路控制信道对应的信道接入优先级或接收的物理边链路反馈信道对应的信道接 入优先级。
在边链路通信中的无线链路失败检测一般针对授权频谱进行设计，暂无针对非授权频谱的边链路的无线链路失败检测。授权频谱的边链路的无线链路失败检测过程包括第一节点发送PSSCH和接收PSFCH，当无法接收到PSFCH，则第一节点判断发生了非连续传输(Discontinuous Transmission，DTX)，在第一节点判断连续发生X次DTX，则第一节点判断发生了无线链路失败(Radio Link Failure，RLF)。但是当在授权频谱的边链路无线链路失败检测应用于非授权频谱时，会存在问题。当第二节点接收到第一节点发送的PSSCH，第二节点在发送PSFCH之前需要进行信道评估，只有在信道评估结果为信道可用时，第二节点才能发送PSFCH。在信道评估结果为信道不可用，第二节点无法向第一节点发送PSFCH。这种情况下，第一节点无法接收到第二节点发送的PSFCH，因此，第一节点无法判断是否发生了DTX，进而无法确定是否发生了连续X次DTX，第一节点无法判断是否发生了RLF，针对上述问题，本申请实施例提供了一种参数调整方法实现非授权频谱下的信息调整，从而便于进行无线链路失败检测。
图10是本申请实施例提供的另一种参数调整方法的流程图，本申请实施例可适用于非授权频谱下无线链路失败检测中信息调整的情况，该方法可以由参数调整装置来执行，该装置可以通过软件和/或硬件的方式实现，一般集成在终端设备或基站中，参见图10，本申请实施例提供的方法包括S510-S540。
S510、向包括第二节点的至少一个节点发送物理边链路共享信道。
S520、在物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道。
接收时机可以是第一节点接收与物理边链路共享信道关联的物理边链路反馈信道的时机。
在本申请实施例中，可以在第一节点发送的物理边链路共享信道对应的物理边链路反馈信道的接收时机上对物理边链路反馈信道进行监听。
S530、在物理边链路反馈信道的接收时机之前执行信道接入过程。
在本申请实施例中，第一节点在物理边链路反馈信道的接收时机之前进行信道接入过程，确定信道评估结果。
S540、根据物理边链路反馈信道的接收结果和信道接入过程的信道评估结果调整变量，其中，变量用于判断发生无线链路失败。
变量用于判断发生无线链路失败，变量可以随着DTX的次数增多而改变。
在本申请实施例中，第一节点可以按照物理边链路反馈信道的接收结果以及执行的信道接入过程的信道评估结果共同对变量进行调整，从而实现无线链路失败检测，该调整可以包括变量在原取值的基础上自增1或者变量在原取值的基础上不改变，在一些实施例中，变量可以为计数器的取值。
在上述申请实施例的基础上，物理边链路反馈信道的接收结果包括以下至少之一：在一个PSFCH接收时机上未接收到PSFCH、在一个PSFCH接收时机上接收到PSFCH，在一个PSFCH接收时机上接收到PSFCH且接收的PSFCH为ACK、在一个PSFCH接收时机上接收到PSFCH且接收的PSFCH为NACK。
在一个示例性的实施方式中，第一节点发送物理边链路共享信道，在该物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道，第一节点在该接收时机之前执行信道接入过程，第一节点根据物理边链路反馈信道的接收结果和信道接入过程的信道评估结果确定上述用于判断发生无线链路失败的一个变量的加数。在一些实施例中，该加数为1或0。物理边链路信道的接收结果包括以下至少之一：在一个PSFCH接收时机上未接收到PSFCH、在一个PSFCH接收时机上接收到PSFCH，在一个PSFCH接收时机上接收到PSFCH且接收PSFCH为ACK、在一个PSFCH接收时机上接收到PSFCH且接收的PSFCH为NACK。其中，PSFCH用于反馈混合自动请求重传确认(Hybrid Automatic Repeat reQuest Acknowledgement，HARQ-ACK)，HARQ-ACK包括ACK和NACK两种状态。物理边链路信道接入过程的信道评估结果包括以下至少之一：信道可用，信道不可用。
在一些实施例中，前述的一个变量可以标记为numConsecutiveDTX，该加数为1。第一节点判断是否针对变量numConsecutiveDTX执行加上该加数的操作，对于加数为1的情况，对numConsecutiveDTX执行加上该加数1的操作后，numConsecutiveDTX的值增加1。这里的一个变量，也可以表述为一个计数器。
图11是本申请实施例提供的另一种参数调整方法的流程图，本申请实施例是在上述实施例基础上的说明，参见图11，本申请实施例提供的方法包括S610-S640。
S610、向包括第二节点的至少一个节点发送物理边链路共享信道。
S620、在物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道。
S630、在物理边链路反馈信道的接收时机之前执行信道接入过程。
S640、在物理边链路反馈信道的接收时机上未接收到物理边链路反馈信道， 且接收时机之前执行的信道接入过程的信道评估结果为信道可用，变量自增1。
在本申请实施例中，物理边链路反馈信道的接收结果为未接收到物理边链路反馈信道，且信道接入过程的信道评估结果为信道可用，第一节点设置用于判断发生无线链路失败的一个变量自增1，也即该变量在原有取值的基础上加1。
在一个示例性的实施方式中，第一节点发送物理边链路共享信道，在该物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道，第一节点在该接收时机之前执行信道接入过程，第一节点根据物理边链路反馈信道的接收结果和信道接入过程的信道评估结果确定用于判断发生无线链路失败的一个变量或计数器的加数。第一节点在一个PSFCH接收时机上未收到PSFCH，且该PSFCH接收时机之前执行的信道接入过程的结果为信道可用，则变量的加数为1。即，加数的值为1。此时，numConsecutiveDTX的值增加1。在一些实施例中，第一节点替代第二节点执行信道接入过程的信道评估，信道评估结果为信道可用。此时第一节点未收到第二节点发送的PSFCH的原因，第一节点认为是发生了DTX的原因导致的未接收到第二节点发送的PSFCH，而不是因为第二节点信道接入失败导致的无法发送PSFCH。这里的DTX，是指第一节点发送的SCI对应的接收失败，其中，SCI为用于指示PSSCH的控制信息。
图12是本申请实施例提供的另一种参数调整方法的流程图，本申请实施例是在上述实施例基础上的说明，参见图12，本申请实施例提供的方法包括S710-S740。
S710、向包括第二节点的至少一个节点发送物理边链路共享信道。
S720、在物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道。
S730、在物理边链路反馈信道的接收时机之前执行信道接入过程。
S740、出现M次事件，变量自增1，其中，一次事件包括：在一个物理边链路反馈信道的接收时机上未接收到物理边链路反馈信道，且，接收时机之前执行的信道接入过程的信道评估结果为信道不可用。
在本申请实施例中，第一节点检测到出现M次物理边链路反馈信道的接收时机上未接收到物理边链路反馈信道，且，接收时机之前执行的信道接入过程的信道评估结果为信道不可用，将用于判断发生无线链路失败的一个变量自增1，其中，M为正整数。
在一些实施例中，M的取值为正整数，所述M包括以下至少之一：
M的取值为预设固定值；M的取值包含在预配置信令中；M的取值包含在配置信令中。
在一个示例性的实施方式中，第一节点发送物理边链路共享信道，在该物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道，第一节点在该接收时机之前执行信道接入过程，第一节点根据物理边链路反馈信道的接收结果和信道接入过程的信道评估结果确定用于判断发生无线链路失败的一个变量或计数器的加数。第一节点根据所述物理边链路信道的接收结果和所述信道接入过程的结果，确定该变量的加数包括，如果出现以下M次事件，变量进行加1操作：第一节点在一个PSFCH接收时机上未收到PSFCH，且该PSFCH接收时机之前执行的信道接入过程的结果为信道不可用。这里，变量对应的加数的值为1，变量标记为numConsecutiveDTX。出现上述M次事件后，numConsecutiveDTX进行加1操作。之后，对上述事件重新计数，当再次出现上述M次事件后，numConsecutiveDTX再进行加1操作。循环执行该过程。
M的值为预设的固定值，M的值被包含在预配置信令内，M的值被包含在配置信令内。关于上述配置信令，一般来自于网络或基站，通过信令的方式从网络或基站发送给第一节点。也就是说，第一节点通过接收配置信令的方式，获得M的值。这里的配置信令通常为高层配置信息，这里的高层是相对物理层而言的。在一些实施例中，配置信令为RRC消息。关于上述预配置一般为第一节点的高层实体提供的配置，例如第一节点自己的高层等。这里的高层是相对物理层而言的，这里的高层包括但不限于MAC层、RRC层等。
在上述申请实施例的基础上，还包括：变量的取值大于第一门限值，混合自动重传请求实体向无线资源控制层指示检测到无线链路失败。
在本申请实施例中，第一节点判断用于判断发生无线链路失败的变量的取值大于第一门限值，则第一节点确定发生RLF，第一节点的混合自动重传请求(Hybrid Automatic Repeat request，HARQ)实体向其无线链路控制层指示无线链路失败。
在一个示例性的实施方式中，第一节点发送物理边链路共享信道，在该物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道，第一节点在该接收时机之前执行信道接入过程，第一节点根据物理边链路反馈信道的接收结果和信道接入过程的信道评估结果确定用于判断发生无线链路失败的一个变量或计数器的加数。在该变量的值达到一个门限值，第一节点的HARQ实体向其RRC层指示RLF detection。在本申请实施例中，可以将变量标记为numConsecutiveDTX，门限值标记为MaxnumConsecutiveDTX。其中，MaxnumConsecutiveDTX为以下至少之一：MaxnumConsecutiveDTX的值为预设的固定值，MaxnumConsecutiveDTX的值被包含在预配置信令内，MaxnumConsecutiveDTX的值被包含在配置信令内。
在上述申请实施例的基础上，还包括：
在一个物理边链路反馈信道的接收时机接收到物理边链路反馈信道，初始化变量为零。
在本申请实施例中，第一节点在PSFCH的接收时机上接收到与发送的PSSCH关联的PSFCH，第一节点将用于判断发生无线链路失败的一个变量设置为零。在一些实施例中，可以将用于判断发生无线链路失败的一个变量对应的计数器初始化为0。
图13是本申请实施例提供的一种参数调整装置的结构示意图，该装置可执行本申请任意实施例提供的参数调整方法，具备执行方法相应的功能模块和有益效果。该装置可以由软件和/或硬件实现，一般集成于终端或基站。如图13所示，本申请实施例提供的装置包括：第一共享信道模块801、第一反馈信道模块802、第一信道接入模块803和竞争窗调整模块804。
第一共享信道模块801，用于向包括第二节点的至少一个节点发送物理边链路共享信道。
第一反馈信道模块802，用于在所述物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道。
第一信道接入模块803，用于在所述物理边链路反馈信道资源之前执行第一信道接入过程。
竞争窗调整模块804，用于根据所述第一信道接入过程的信道评估结果调整竞争窗。
在一些实施例中，竞争窗调整模块804包括：
调整判断单元，用于基于所述物理边链路反馈信道资源上的所述物理边链路反馈信道的接收结果确定是否根据所述第一信道接入过程的信道评估结果调整竞争窗。
调整执行单元，用于所述接收结果为未收到否定性确认，确定根据所述第一信道接入过程的信道评估结果调整竞争窗。
在一些实施例中，竞争窗的调整包括以下至少之一：
增大所述竞争窗的取值，且所述取值符合一个信道接入优先级；减小所述竞争窗的取值，且所述取值符合一个信道接入优先级；调整所述竞争窗的取值，且所述取值为符合一个信道接入优先级的竞争窗取值中大于当前竞争窗值中的最小值；调整所述竞争窗的取值，且所述取值为符合一个信道接入优先级的最小值；调整所述竞争窗的取值为当前竞争窗值。
在一些实施例中，竞争窗调整模块804还用于：所述信道评估结果包括信道不可用，增大所述竞争窗的取值，且所述取值符合一个信道接入优先级；所述信道评估结果包括信道可用，减小所述竞争窗的取值，且所述取值符合一个信道接入优先级的最小值。
在一些实施例中，第一信道接入过程包括以下至少之一：
所述第一信道接入过程的起点位于所述物理边链路反馈信道资源之前的16us；所述第一信道接入过程的起点位于所述物理边链路反馈信道资源之前的25us；所述第一信道接入过程的起点位于所述物理边链路反馈信道资源之前的16-25us范围内；所述第一信道接入过程的起点早于所述物理边链路反馈信道资源之前的25us。
在一些实施例中，信息调整装置还包括：配置模块，用于接收配置信息或获取预配置信息，所述配置信息或预配置信息包括所述第一信道接入过程的开始时间。
在一些实施例中，开始时间包括以下至少之一：
所述开始时间位于所述物理边链路反馈信道资源之前的16us；所述开始时间位于所述物理边链路反馈信道资源之前的25us；所述开始时间位于所述物理边链路反馈信道资源之前的16-25us范围；所述开始时间早于所述物理边链路反馈信道资源的25us。
在一些实施例中，装置还包括：配置所述第一信道接入过程与第二信道接入过程的类型相同，其中，所述第二信道接入过程为所述第二节点在所述物理边链路共享信道关联的物理边链路反馈信道资源之前执行的信道接入过程。
在一些实施例中，第一信道接入过程与所述第二信道接入过程的类型包括以下至少之一：
Type1信道接入过程；Type2A信道接入过程；Type2B信道接入过程。
在一些实施例中，参数调整装置还包括：传输模块，用于根据调整的所述竞争窗执行第三信道接入过程；所述第三信道接入过程的信道评估结果为信道可用，在所述物理边链路反馈信道资源之后传输边链路信息。
在一些实施例中，竞争窗符合的一个信道接入优先级包括以下至少之一：发送的物理边链路控制信道对应的信道接入优先级；接收的物理边链路反馈信道对应的信道接入优先级。
图14是本申请实施例提供的另一种参数调整装置的结构示意图，该装置可执行本申请任意实施例提供的参数调整方法，具备执行方法相应的功能模块和 有益效果。该装置可以由软件和/或硬件实现，一般集成于终端或基站。如图14所示，本申请实施例提供的装置包括：第二共享信道模块901、第二反馈信道模块902、信道接入模块903和变量调整模块904。
第二共享信道模块901，用于向包括第二节点的至少一个节点发送物理边链路共享信道。
第二反馈信道模块902，用于在所述物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道。
信道接入模块903，用于在所述物理边链路反馈信道的接收时机之前执行信道接入过程。
变量调整模块904，用于根据所述物理边链路反馈信道的接收结果和所述信道接入过程的信道评估结果调整变量，其中，所述变量用于判断发生无线链路失败。
在一些实施例中，变量调整模块904用于：在所述物理边链路反馈信道的接收时机上未接收到所述物理边链路反馈信道，且所述接收时机之前执行的所述信道接入过程的信道评估结果为信道可用，所述变量自增1。
在另一些实施例中，变量调整模块904还用于：出现M次事件，所述变量自增1，其中，一次所述事件包括：在一个物理边链路反馈信道的接收时机上未接收到所述物理边链路反馈信道，且，所述接收时机之前执行的信道接入过程的信道评估结果为信道不可用。
在一些实施例中，M的取值为正整数，所述M包括以下至少之一：
所述M的取值为预设固定值；所述M的取值包含在预配置信令内；所述M的取值包含在配置信令内。
在一些实施例中，参数调整装置还包括：失败指示模块，用于在所述变量的取值大于第一门限值，混合自动重传请求实体向无线资源控制层指示检测到无线链路失败。
在另一些实施例中，参数调整装置还包括：变量初始化模块，用于在一个物理边链路反馈信道的接收时机接收到所述物理边链路反馈信道，初始化所述变量为零。
图15是本申请实施例提供的一种电子设备的结构示意图，该电子设备包括处理器10、存储器11、输入装置12和输出装置13；电子设备中处理器10的数量可以是一个或多个，图15中以一个处理器10为例；电子设备中处理器10、存储器11、输入装置12和输出装置13可以通过总线或其他方式连接，图15中 以通过总线连接为例。
存储器11作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本申请实施例中的方法对应的程序、本申请实施例中的装置对应的模块(第一共享信道模块801、第一反馈信道模块802、第一信道接入模块803和竞争窗调整模块804，和/或，第二共享信道模块901、第二反馈信道模块902、信道接入模块903和变量调整模块904)。处理器10通过运行存储在存储器11中的软件程序、指令以及模块，从而执行电子设备的各种功能以及数据处理，即实现上述的方法。
存储器11可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的程序；存储数据区可存储根据电子设备的使用所创建的数据等。此外，存储器11可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器11可包括相对于处理器10远程设置的存储器，这些远程存储器可以通过网络连接至电子设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置12可用于接收输入的数字或字符信息，以及产生与电子设备的用户设置以及功能控制有关的键信号输入。输出装置13可包括显示屏等显示设备。
本申请实施例还提供一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行一种参数调整方法。
在一种实施方式中，参数调整方法，包括：
向包括第二节点的至少一个节点发送物理边链路共享信道；在所述物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道；在所述物理边链路反馈信道资源之前执行第一信道接入过程；根据所述第一信道接入过程的信道评估结果调整竞争窗。
在另一种实施方式中，参数调整方法，包括：
向包括第二节点的至少一个节点发送物理边链路共享信道；在所述物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道；在所述物理边链路反馈信道的接收时机之前执行信道接入过程；根据所述物理边链路反馈信道的接收结果和所述信道接入过程的信道评估结果调整变量，其中，所述变量用于判断发生无线链路失败。
通过以上关于实施方式的描述，所属领域的技术人员可以清楚地了解到，本申请可借助软件及必需的通用硬件来实现，当然也可以通过硬件实现，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上 或可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如计算机的软盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、闪存(FLASH)、硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
值得注意的是，上述装置的实施例中，所包括的各个单元和模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的名称也只是为了便于相互区分，并不用于限制本申请的保护范围。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤操作、装置、设备中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或操作可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。相应的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。

Claims (19)

  1. 一种参数调整方法，应用于第一节点，所述方法包括：
    向包括第二节点的至少一个节点发送物理边链路共享信道；
    在所述物理边链路共享信道关联的物理边链路反馈信道资源上接收物理边链路反馈信道；
    在所述物理边链路反馈信道资源之前执行第一信道接入过程；
    根据所述第一信道接入过程的信道评估结果调整竞争窗。
  2. 根据权利要求1所述方法，其中，所述根据所述第一信道接入过程的信道评估结果调整竞争窗，包括：
    基于所述物理边链路反馈信道资源上的所述物理边链路反馈信道的接收结果确定是否根据所述第一信道接入过程的信道评估结果调整竞争窗；
    所述接收结果为未收到否定性确认，确定根据所述第一信道接入过程的信道评估结果调整竞争窗。
  3. 根据权利要求1所述方法，其中，所述竞争窗的调整包括以下至少之一：
    增大所述竞争窗的取值，且所述取值符合一个信道接入优先级；
    减小所述竞争窗的取值，且所述取值符合一个信道接入优先级；
    调整所述竞争窗的取值，且所述取值为符合一个信道接入优先级的竞争窗取值中大于当前竞争窗值中的最小值；
    调整所述竞争窗的取值，且所述取值为符合一个信道接入优先级的最小值；
    调整所述竞争窗的取值为当前竞争窗值。
  4. 根据权利要求1所述方法，其中，所述根据所述第一信道接入过程的信道评估结果调整竞争窗，包括以下至少之一：
    所述信道评估结果包括信道不可用，增大所述竞争窗的取值，且所述取值符合一个信道接入优先级；
    所述信道评估结果包括信道可用，减小所述竞争窗的取值，且所述取值符合一个信道接入优先级的最小值。
  5. 根据权利要求1所述方法，其中，所述第一信道接入过程包括以下至少之一：
    所述第一信道接入过程的起点位于所述物理边链路反馈信道资源之前的16us；
    所述第一信道接入过程的起点位于所述物理边链路反馈信道资源之前的25us；
    所述第一信道接入过程的起点位于所述物理边链路反馈信道资源之前的16-25us范围内；
    所述第一信道接入过程的起点早于所述物理边链路反馈信道资源之前的25us。
  6. 根据权利要求1所述方法，还包括：
    接收配置信息或获取预配置信息，所述配置信息或所述预配置信息包括所述第一信道接入过程的开始时间。
  7. 根据权利要求6所述方法，其中，所述开始时间包括以下至少之一：
    所述开始时间位于所述物理边链路反馈信道资源之前的16us；
    所述开始时间位于所述物理边链路反馈信道资源之前的25us；
    所述开始时间位于所述物理边链路反馈信道资源之前的16-25us范围；
    所述开始时间早于所述物理边链路反馈信道资源的25us。
  8. 根据权利要求1所述方法，其中，所述向包括第二节点的至少一个节点发送物理边链路共享信道，包括：
    配置所述第一信道接入过程与第二信道接入过程的类型相同，其中，所述第二信道接入过程为所述第二节点在所述物理边链路共享信道关联的物理边链路反馈信道资源之前执行的信道接入过程。
  9. 根据权利要求8所述方法，其中，所述第一信道接入过程与所述第二信道接入过程的类型包括以下至少之一：
    Type1信道接入过程；
    Type2A信道接入过程；
    Type2B信道接入过程。
  10. 根据权利要求1所述方法，还包括：
    根据调整的所述竞争窗执行第三信道接入过程；
    所述第三信道接入过程的信道评估结果为信道可用，在所述物理边链路反馈信道资源之后传输边链路信息。
  11. 根据权利要求1所述方法，其中，所述竞争窗符合的一个信道接入优先级包括以下至少之一：
    发送的物理边链路控制信道对应的信道接入优先级；
    接收的物理边链路反馈信道对应的信道接入优先级。
  12. 一种参数调整方法，应用于第一节点，所述方法包括：
    向包括第二节点的至少一个节点发送物理边链路共享信道；
    在所述物理边链路共享信道关联的物理边链路反馈信道的接收时机上接收物理边链路反馈信道；
    在所述物理边链路反馈信道的接收时机之前执行信道接入过程；
    根据所述物理边链路反馈信道的接收结果和所述信道接入过程的信道评估结果调整变量，其中，所述变量用于判断发生无线链路失败。
  13. 根据权利要求12所述方法，其中，所述根据所述物理边链路反馈信道的接收结果和所述信道接入过程的信道评估结果调整变量，包括：
    在所述物理边链路反馈信道的接收时机上未接收到所述物理边链路反馈信道，且所述接收时机之前执行的所述信道接入过程的信道评估结果为信道可用，所述变量自增1。
  14. 根据权利要求12所述方法，其中，所述根据所述物理边链路反馈信道的接收结果和所述信道接入过程的信道评估结果调整变量，包括：
    出现M次事件，所述变量自增1，其中，一次事件包括：
    在一个物理边链路反馈信道的接收时机上未接收到所述物理边链路反馈信道，且，所述接收时机之前执行的信道接入过程的信道评估结果为信道不可用。
  15. 根据权利要求14所述方法，其中，M的取值为正整数，M包括以下至少之一：
    M的取值为预设固定值；
    M的取值包含在预配置信令；
    M的取值包含在配置信令。
  16. 根据权利要求12所述方法，还包括：
    在所述变量的取值大于第一门限值的情况下，混合自动重传请求实体向无线资源控制层指示检测到无线链路失败。
  17. 根据权利要求12所述方法，还包括：
    在一个物理边链路反馈信道的接收时机接收到所述物理边链路反馈信道的情况下，初始化所述变量为零。
  18. 一种电子设备，包括：
    至少一个处理器；
    存储器，设置为存储至少一个程序，当所述至少一个程序被所述至少一个处理器执行，使得所述至少一个处理器实现如权利要求1-17中任一所述参数调整方法。
  19. 一种计算机可读存储介质，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1-17中任一所述参数调整方法。
PCT/CN2023/128076 2022-10-31 2023-10-31 参数调整方法、电子设备和存储介质 WO2024093957A1 (zh)

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