WO2021197316A1 - 资源选择方法、终端及网络侧设备 - Google Patents

资源选择方法、终端及网络侧设备 Download PDF

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Publication number
WO2021197316A1
WO2021197316A1 PCT/CN2021/083912 CN2021083912W WO2021197316A1 WO 2021197316 A1 WO2021197316 A1 WO 2021197316A1 CN 2021083912 W CN2021083912 W CN 2021083912W WO 2021197316 A1 WO2021197316 A1 WO 2021197316A1
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Prior art keywords
resource selection
window
time
detection window
terminal
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PCT/CN2021/083912
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English (en)
French (fr)
Inventor
彭淑燕
纪子超
刘是枭
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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 JP2022559819A priority Critical patent/JP7480336B2/ja
Priority to BR112022019147A priority patent/BR112022019147A2/pt
Priority to EP21780636.3A priority patent/EP4132142A4/en
Priority to KR1020227038052A priority patent/KR20220160678A/ko
Priority to AU2021247741A priority patent/AU2021247741B2/en
Publication of WO2021197316A1 publication Critical patent/WO2021197316A1/zh
Priority to US17/944,780 priority patent/US20230007669A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/40Resource management for direct mode communication, e.g. D2D or sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communication technology, in particular to a resource selection method, terminal and network side equipment.
  • V2X Vehicle to everything
  • PUE pedestrian user equipment
  • VUE vehicle user equipment
  • PUE requires additional consideration of power saving. If the PUE transmission and the VUE transmission use the same resource pool, then the PUE needs to perform resource detection and try to avoid the transmission resources occupied by other PUEs and the transmission resources occupied by the VUE.
  • the PUE In order to support the PUE to send and receive on some resources on the side link. Select the resource as far as possible to be the resource with relatively small interference in the system, so as to improve the transmission efficiency of the terminal (for example: signal quality, transmission times, etc.) and the resource efficiency of the system. In order to select appropriate resources, the PUE needs to detect the interference in the system, but the current detection method consumes a lot of energy, resulting in low energy efficiency of the PUE and short battery life.
  • the embodiments of the present invention provide a resource selection method, a terminal, and a network-side device to reduce the problem of the NR PUE that consumes more energy and has a shorter battery life during detection.
  • an embodiment of the present invention provides a resource selection method, which is applied to a terminal, and includes:
  • an embodiment of the present invention also provides a resource selection method, which is applied to a network side device, and includes:
  • an embodiment of the present invention also provides a terminal, including:
  • the first obtaining module is used to obtain configuration information of the detection window in part of the detection mechanism
  • the second acquisition module is configured to perform detection in the detection window indicated by the configuration information to obtain a detection result
  • the third acquisition module is configured to acquire an optional resource set according to the detection result.
  • an embodiment of the present invention also provides a terminal, including: a memory, a processor, and a computer program stored in the memory and capable of running on the processor.
  • the computer program implements the foregoing when executed by the processor. Steps of resource selection method.
  • an embodiment of the present invention also provides a network side device, including:
  • the first sending module is used to send configuration information of the detection window in the partial detection mechanism to the terminal.
  • an embodiment of the present invention also provides a network-side device, which is characterized by comprising: a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the computer program is processed by the processor.
  • the steps of the resource selection method described above are implemented when the device is executed.
  • an embodiment of the present invention further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and the computer program is executed by a processor to implement the steps of the above-mentioned resource selection method .
  • the detection window is obtained by using the configuration information of the detection window in the partial detection mechanism.
  • the detection window is a part of the resources of the optional detection window, that is, the terminal only needs to perform in a subset of the optional detection window. In this way, the energy consumed by the terminal's detection is saved.
  • FIG. 1 shows a schematic diagram of LTE sidelink resource allocation mode 4.
  • FIG. 2 shows a schematic diagram of the flow of LTE sidelink resource allocation mode 4.
  • Figure 3 shows a schematic diagram of LTE partial detection
  • FIG. 4 shows one of the schematic flowcharts of a resource selection method according to an embodiment of the present invention
  • Figure 5 shows one of the schematic diagrams of the position of the detection window
  • Figure 6 shows the second schematic diagram of the position of the detection window
  • Figure 7 shows the third schematic diagram of the position of the detection window
  • FIG. 8 shows a schematic diagram of the position of a newly triggered resource selection window
  • FIG. 9 shows a schematic diagram of modules of a terminal according to an embodiment of the present invention.
  • FIG. 10 shows a structural block diagram of a terminal according to an embodiment of the present invention.
  • FIG. 11 shows the second schematic flowchart of a resource selection method according to an embodiment of the present invention.
  • FIG. 12 shows a schematic diagram of modules of a network side device according to an embodiment of the present invention.
  • FIG. 13 shows a structural block diagram of a network side device according to an embodiment of the present invention.
  • LTE Long Term Evolution
  • UE User Equipment
  • LTE sidelink communicates based on broadcast. Although it can be used to support V2X basic security communications, it is not applicable to other more advanced V2X services.
  • the fifth-generation (5Generation, 5G) New Radio (NR) system will support more advanced sidelink transmission designs, such as unicast, multicast, or multicast, so as to support more comprehensive service types.
  • LTE sidelink is suitable for specific public safety affairs (such as emergency communication in fire sites or disaster sites such as earthquakes), or vehicle to everything (V2X) communications.
  • IoV communications include various services, such as basic safety communications, advanced (autonomous) driving, formation, sensor expansion, and so on. Since LTE sidelink only supports broadcast communications, it is mainly used for basic security communications. Other advanced V2X services with strict quality of service (QoS) requirements in terms of delay and reliability will be supported by NR sidelink.
  • QoS quality of service
  • V2V Vehicle to Vehicle
  • LTE sidelink design supports two resource allocation modes, namely the scheduled resource allocation mode and the autonomous resource selection mode.
  • the former is controlled by the network side device and allocates resources for each UE, and the latter is independently selected by the UE.
  • LTE sidelink resource allocation mode 1 (mode 1) is the device-to-device (D2D) scheduling resource allocation mode
  • LTE sidelink resource allocation mode 2 is the D2D autonomous resource allocation mode
  • LTE sidelink resource allocation mode 3 is the scheduling resource allocation mode of V2X
  • LTE sidelink resource allocation mode 4 is the autonomous resource allocation mode of V2X;
  • the measurement is performed in the sensing window, and the scheduling assignment (SA) is de-scheduled and the interference measurement is performed in each transmission time interval (TTI).
  • SA scheduling assignment
  • TTI transmission time interval
  • Step S11 excluding the occupied resources indicated by the SA
  • This step mainly implements: the terminal demodulates the received SA, obtains resources reserved by other UEs, and excludes resources reserved by other UEs;
  • Step S12 Obtain the interference threshold according to the priority
  • Step S13 Eliminate candidate resources whose interference is greater than the threshold
  • This step is mainly to perform energy detection in the sensing window, measure the reference signal strength indication (RSSI), and exclude candidate resources with interference greater than the threshold according to the measurement result.
  • RSSI reference signal strength indication
  • Step S14 It is judged whether the remaining candidate resources account for more than 20% of the total resources, if not, step S15 is executed, otherwise, step S16 is executed.
  • Step S15 adjust the nuisance threshold, and continue to execute step S13;
  • Step S16 selecting 20% of the remaining resources as a resource set
  • Step S17 randomly selecting resources from the set of candidate resources as reserved resources
  • This step is mainly to randomly select a subframe from the 20% resources with the least interference within the selection window for periodic resource reservation.
  • NR V2X defines two resource allocation modes, one is mode1, which schedules resources for the base station; the other is mode2, where the UE decides which resources to use for transmission.
  • the resource information may come from a broadcast message of the base station or pre-configured information. If the UE works in the range of the base station and has an RRC connection with the base station, it can be mode1 and/or mode2. If the UE works in the range of the base station but has no RRC connection with the base station, it can only work in mode2. If the UE is outside the range of the base station, it can only work in mode2 and perform V2X transmission according to the pre-configured information.
  • the specific working methods are as follows: 1) After the resource selection is triggered, the TX UE first determines the resource selection window. The lower boundary of the resource selection window is at time T1 after the resource selection is triggered, and the upper boundary of the resource selection is after the trigger. T2 time, where T2 is the value selected by the UE in the packet delay budget (PDB) of its TB transmission, T2 is not earlier than T1. 2) The UE needs to determine the resource selection before resource selection The candidate resource set (candidate resource set) is compared with the corresponding RSRP threshold according to the reference signal receiving power (Reference Signal Receiving Power, RSRP) measured on the resource in the resource selection window.
  • RSRP Reference Signal Receiving Power
  • the resource can be included in a collection of alternative resources. 3) After the candidate resource set is determined, it is reported to the media access control (MAC) layer, and the MAC layer randomly selects a resource from the candidate resource set as the resource of the UE. In addition, the UE can reserve transmission resources for the next transmission in this transmission.
  • MAC media access control
  • NR V2X supports chain resource reservation, that is, one sidelink control information (Sidelink Control Information, SCI) can reserve frequency domain resources indicating the current time slot, and at most two additional resources can be reserved , When transmitting in the next resource, you can indicate two more reserved resources. Within the selection window, resources can be continuously reserved in a dynamic reservation method.
  • SCI Sidelink Control Information
  • Part of the detection in LTE V2X is mainly designed to save power and to support P2V communication.
  • PUE supports two modes of resource selection. One mode is random resource selection; the other mode is partial detection mode, which first performs detection on some resources, selects resources based on the results of partial detection, and performs semi-static resource reservation. Among them, which mode the PUE chooses is configured by Radio Resource Control (RRC).
  • RRC Radio Resource Control
  • the PUE implementation decides which resource selection method to use.
  • FIG. 3 the manner in which the terminal performs partial detection and performs resource detection is shown in FIG. 3.
  • the PUE detection window is a subset of resources within the range of [n-1000, n] (that is, the unfilled box between n-1000 and n indicates the range of the detection window), and each small window (that is, in the figure The length of the oblique line filled box) Yms, which is the length of the PUE detection window.
  • k is a parameter configured by RRC, and the value range of k can be ⁇ 1,2,3,...,10 ⁇ .
  • the horizontal filled box in [n+T1,n+T2] in the selection window indicates the PUE selection window configured for the higher layer.
  • the PUE detects the SCI sent by other terminals in the PUE detection window of the slash-filled box.
  • the PUE Based on the detected SCI and the reserved period, it is estimated that the resource reservation of other terminals in the PUE selection window indicated by the slash-filled box, the PUE The resources that do not meet the conditions in the selection window can be excluded based on this information. Select at least 20% (20% of the window length Y) of the remaining resources as the candidate resource set, and report to the media access control (MAC) layer.
  • the MAC layer randomly selects a resource from the candidate resource set as the PUE resource resource.
  • the PUE reserves the selected resources periodically, and the reserved period is indicated in the SCI.
  • the present invention consumes more energy, resulting in higher PUE energy consumption and poor endurance, and provides a resource selection method, terminal and network side equipment.
  • an embodiment of the present invention provides a resource selection method, which is applied to a terminal, and includes:
  • Step 41 Obtain the configuration information of the detection window in the partial detection mechanism
  • Step 42 Perform detection in the detection window indicated by the configuration information to obtain a detection result
  • the detection window indicated by the configuration information is a part of the optional detection window, and the terminal only needs to perform detection in this part of the configured detection window.
  • Step 43 Obtain an optional resource set according to the detection result
  • this step refers to that the terminal obtains an optional resource set in the resource selection window according to the detection result in the configured detection window.
  • the terminal mentioned in the embodiment of the present invention refers to a PUE.
  • the terminal can perform at least one of the following operations on the resources in the detection window (ie, the resource detection window) mentioned in the embodiment of the present invention:
  • SFCI side link feedback control information
  • HARQ-ACK Hybrid automatic repeat request response
  • RSRP reference signal
  • RSSI received signal strength indicator
  • CBR channel busy ratio
  • the embodiment of the present invention mainly takes continuous detection window configuration and non-continuous detection window configuration as examples to describe the embodiment of the present invention in detail as follows.
  • the terminal may obtain the configuration information of the at least one detection window through protocol agreement, configuration and/or pre-configuration.
  • the configuration and pre-configuration can be configured for the network side device or the terminal; specifically, the network side device configuration can be the radio resource control (RRC) configuration, the media access control control unit (MAC CE) ) Configuration, downlink control information (DCI) indication, etc.; terminal configuration can be PC5-RRC configuration, side link control information (SCI) indication, etc.
  • RRC radio resource control
  • MAC CE media access control control unit
  • DCI downlink control information
  • terminal configuration can be PC5-RRC configuration, side link control information (SCI) indication, etc.
  • the configuration information of the detection window in the embodiment of the present invention includes at least one of the following:
  • the length configuration parameter of the detection window includes at least one of the following:
  • the minimum value means that the length of the detection window is determined by the terminal itself.
  • the minimum length limit is to avoid the detection window selected by the terminal from being too small; here, the maximum length of the detection window is not limited. Value, as long as the length of the detection window determined by the terminal is greater than the minimum value.
  • the length range here refers to the maximum value and the minimum value that limit the length of the detection window, and the length of the detection window determined by the terminal needs to be between the maximum value and the minimum value.
  • the length configuration parameter is at least one of the following:
  • the length configuration parameter depends on the time domain resource interval indicated in the SCI, for example, 32 time slots.
  • RRC configuration when RRC dedicated signaling is used for configuration, it can be referred to as RRC configuration at this time, and when RRC broadcast signaling is used for configuration, it can be referred to as RRC pre-configuration at this time. It should be noted that, for example, when the terminal is in the idle state, the RRC pre-configuration method needs to be adopted, and when the terminal is in the connected state, the RRC pre-configuration method or the RRC configuration method may be adopted.
  • the length configuration parameter may be any one or more of the aforementioned A1102-A1106 parameters configured for each resource pool, each bandwidth part (bandwidth part, BWP), and each carrier.
  • the start time and/or end time of the resource selection window that is, the length of the detection window depends on the start time and/or end time of the resource selection window, and the length of the detection window is not additionally specified .
  • the length configuration parameter of the detection window is determined by the length of the resource selection window
  • the length of the detection window is directly limited, that is, the length configuration parameter of the detection window is obtained directly according to the length of the resource selection window.
  • the position configuration parameter of the detection window includes at least one of the start time of the detection window, the end time of the detection window, and the position of the detection window.
  • the start time of the detection window includes one of the following:
  • the start time of the detection window is the time corresponding to the first time interval before the terminal triggers resource selection or reselection;
  • the detection window is enabled at the time corresponding to the first time interval before the resource selection or reselection is triggered by the terminal.
  • the time when the terminal triggers resource selection or reselection is n11, and the first time interval is T11, then the start time of the detection window is n11-T11.
  • the first time interval is a value pre-defined, pre-configured or configured by the protocol, for example, the value of T11 may be 32 time slots. It should also be noted that the value of T11 may also be 0, indicating that the start time of the detection window is the time when the terminal triggers resource selection or reselection.
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection;
  • the start time of the detection window is n12+T12.
  • the end time of the detection window is one of the following:
  • the end time of the detection window is n13-T13.
  • the end time of the resource selection window is n14
  • the ninth time interval is T14
  • the end time of the detection window is n14-T14.
  • the end time of the detection window includes
  • the end time of the detection window is the time corresponding to the third time interval before the terminal triggers resource selection or reselection;
  • the time when the terminal triggers resource selection or reselection is n15
  • the third time interval is T15
  • the start time of the detection window is n15-T15.
  • the third time interval is a value pre-defined, pre-configured or configured by the protocol.
  • the position of the detection window includes one of the following:
  • the position of the detection window is determined by the position of the resource selection window
  • the method of the embodiment of the present invention further includes: determining the position of the detection window according to the position of the resource selection window.
  • a detection window is defined as the detection window of continuous time slots on the resource pool.
  • the start time of the detection window includes at least one of the following:
  • the start time of the detection window is the time corresponding to the fourth time interval before the resource selection window
  • the resource selection window here is the range of the resource selection window configured by the higher layer for partial detection, that is, the terminal selects the resource in the resource selection window.
  • the start time of the resource selection window is n16
  • the fourth time interval is T16
  • the start time of the detection window is n16-T16.
  • the start time of the detection window is the start time of the resource selection window
  • start time of the resource selection window refers to the start time of the resource selection window corresponding to the actual resource selection.
  • the start time of the resource selection window is n17
  • the start time of the detection window is n17.
  • the start time of the detection window is the start time of the optional resource selection window
  • the optional resource selection window is not the resource selection window corresponding to the actual resource selection performed by the terminal. Generally, the optional resource selection window is greater than or equal to the resource selection window corresponding to the actual resource selection performed by the terminal.
  • the start time of the optional resource selection window is n18
  • the start time of the detection window is n18.
  • the start time of the detection window is the time corresponding to the fifth time interval before the resource selection window and the time corresponding to the later one of the start times of the optional resource selection window;
  • this situation means that the start time of the resource selection window is n18, the fifth time interval is T18, and the start time of the optional resource selection window is n19. If n18-T18 is less than n19, then n19 It is determined as the start time of the detection window. If n18-T18 is greater than n19, then n18-T18 is determined as the start time of the detection window.
  • the start time of the detection window is the time corresponding to the sixth time interval before the resource selection window and the time corresponding to the later one of the start times of the resource selection window.
  • this situation means that the start time of the resource selection window is n20, and the sixth time interval is T20. If n20-T20 is less than n20, then n20 is determined as the start time of the detection window. If n20-T20 If it is greater than n20, then n20-T20 is determined as the start time of the detection window.
  • the end time of the detection window includes at least one of the following:
  • the end time of the detection window is the end time of the resource selection window
  • the start time of the detection window is n21.
  • the end time of the detection window is the time corresponding to the seventh time interval before the end time of the resource selection window;
  • the end time of the resource selection window is n22
  • the seventh time interval is T22.
  • T22 is 32 time slots
  • the end time of the detection window is n22-T22.
  • the end time of the detection window is the time corresponding to the first eighth time interval of the transmission resource selected by the terminal;
  • the start time of the transmission resource selected by the terminal is n23
  • the eighth time interval is T23
  • the end time of the detection window is n23-T23.
  • the location of the detection window is determined by the resource selected by the terminal;
  • the method of the embodiment of the present invention further includes: acquiring the position of the detection window according to the resource selected by the terminal.
  • the selected resource is selected in the resource selection window (for example, the earliest time resource that can be selected for the terminal), and/or the selected resource is a resource reserved by the terminal.
  • implementation in this case includes at least one of the following:
  • the start time of the detection window is the time corresponding to the previous eleventh time interval of the selected resource
  • T24 is a value predefined/preconfigured/configured by the protocol.
  • the value of T24 is 32 time slots; or, the value of T24 is 32+T3/31+T3/33+T3.
  • T3 is the processing time for the terminal to prepare resource reselection.
  • the current time is the start time of the detection window; specifically, the current time mentioned here refers to the time when the terminal is The absolute time on a certain time slot/time node in the resource pool used by the terminal to send data.
  • the end time of the detection window is one of the following:
  • the end time of the detection window is n25-T25.
  • the end time of the resource selection window is n26
  • the fourteenth time interval is T26
  • the end time of the detection window is n26-T26.
  • the position of the detection window is between the time corresponding to the previous twelfth time interval and the time corresponding to the previous thirteenth time interval of the selected resource;
  • the time of the selected resource is n27
  • the twelfth time interval is T_x
  • the thirteenth time interval is T_y
  • the position of the detection window is between n27-T_x and n27-T_y
  • T_x The value can be 32 time slots; the value of T_x can also be 32+T3/31+T3/33+T3 time slots, T3 is the processing time for the terminal to prepare resource reselection; the value of T_y can be T3.
  • the current time is the start time of the detection window.
  • the current time mentioned here refers to an absolute time on a certain time slot/time node in the resource pool used by the terminal to send data.
  • the defined detection window is not only related to the location of the resource selection window, but also related to the configuration of the period defined in the resource pool used by the terminal to send data, or related to the period configured for the terminal;
  • the detection window determined in this case is a window related to the cycle and the location of the resource selection window.
  • the configuration information of the detection window in the embodiment of the present invention includes at least one of the following:
  • the method for obtaining the length configuration parameter of the detection window includes:
  • the length of the detection window is determined by the length of the resource selection window.
  • the length of a single detection window is equal to the length of the resource selection window.
  • the method for acquiring the position configuration parameter of the detection window includes:
  • the detection window is determined by the location of the resource selection window and high-level parameter indications
  • the position configuration information of the detection window indicated by the high-level parameter is k bits (where k is an integer), and the value of the bit length of k is related to at least one of the following:
  • bit length of k here is not necessarily the bit length of k corresponding to the period value existing in the resource pool configuration.
  • the first resource pool refers to the resource pool used by the terminal to send data.
  • the value of the bit length of k is determined by the period value of the data to be transmitted by the terminal, the configured period value, or the period value configured in the first resource pool. If periodic reservation is not enabled for the first resource pool, the code point value of k is set to all 0s.
  • ceil(*) represents the round-up function
  • T_sensingwindow is the length of the first detection window.
  • the first detection window corresponds to the detection window defined in R16 when the period reservation is enabled.
  • the length of a detection window is 1000 ms.
  • the period value mentioned above is a period value
  • the bit length of k is the calculated value. If there are at least two period values in the resource pool where the terminal is located, each period value Corresponding to one k-bit information, one of the following is satisfied:
  • the higher layer configures multiple k-bit instructions
  • the detection window of the terminal is a collection indicated by multiple k values; specifically, the bit lengths of different k bits may be the same or different. If the bit lengths of k bits are different, Cycles T1, T2, T3, T4, calculated to obtain k1, k2, k3, k4, then the high-level configuration k1, k2, k3, k4, 4 bitmaps indicate the configuration of the detection window.
  • the higher layer configures an indication information, where the indication information size is the maximum value of the multiple k bit lengths;
  • the detection window is determined by the first period
  • the first cycle includes at least one of the following:
  • B1221 is the period configured by the terminal
  • B1222 The period configured for the resource pool
  • the first period includes at least one period value, and the at least one period value corresponds to at least one of the following:
  • RRC configures at least one period value
  • SCI or DCI indicates one or more period values among the period values configured by RRC.
  • Min_P minimum number of first cycles used for terminal detection is predefined, pre-configured or configured by the protocol.
  • the first period indicates a period set
  • RRC pre-configuration/RRC configuration/MAC CE indication/DCI indication/SCI indicates the used period set The value of the period/the number of the period in the collection.
  • the detection window 2 is defined. According to the value of the partial detection value k configured by the upper layer, if it is 10 bits, the indication is 0100000011, and the period of the resource pool configured by the upper layer is 100ms/100slots ,
  • the position of the detection window 2 is [n+T1'-100*k,n+T2'-100*k], which is [n+T1'-900,n+T2'-900], [n+T1 '-200,n+T2'-200], [n+T1'-100,n+T2'-100] all correspond to detection window 2.
  • the determined detection window 2 is shown in the slash-filled box in the figure .
  • the resource detection window 2 is defined.
  • the configuration cycle is 100ms and 200ms respectively.
  • k1 is 10 bits (based on 1000 divided by 100 equals 10)
  • the position of the detection window is [n+T1'-100*k1,n+T2 '-100*k1]
  • the corresponding detection window 2 is [n+T1'-900,n+T2'-900], [n+T1'-200,n+T2'-200], [n+T1'-100,n+T2'-100]
  • k2 is 5 bits ((based on 1000 divided by 200 equals 5)), then the position of the detection window 2 is, [n+T1'- 200*k2,n+T2'-200*k2], if the indication is 01001, the corresponding detection window is [n+T1
  • the terminal can use this configuration mode to determine the detection window.
  • two configuration modes are given at the same time. In the partial detection mechanism of the terminal, if the following conditions are met, the corresponding detection window is triggered:
  • Condition 1 If the period reservation is enabled, the detection window defined in the above two methods is triggered; or, if the period reservation is enabled, the detection window defined in the second method is triggered.
  • Condition 2 If period reservation is not enabled, the detection window defined in the first method is triggered.
  • Condition 3 The triggering of the above two methods of high-level configuration/pre-configuration detection window
  • condition one and condition two are a way of implicit configuration.
  • the embodiment of the present invention further includes:
  • the resource selection window indicated by the configuration information is a part of the resource selection window in the optional resource selection window, and the terminal only needs to select the resource in this part of the resource selection window configured.
  • the terminal transmits side link information in the resource selection window mentioned in the embodiment of the present invention, including PSCCH/PSSCH/PSFCH/side link reference signal (SL RS).
  • side link information in the resource selection window mentioned in the embodiment of the present invention, including PSCCH/PSSCH/PSFCH/side link reference signal (SL RS).
  • the configuration information of the resource selection window includes at least one of the following:
  • length configuration parameters of the resource selection window include the following:
  • the minimum value means that the length of the resource selection window is determined by the terminal itself, and the maximum length of the resource selection window is not limited here, as long as the length of the resource selection window determined by the terminal is greater than the minimum value. That's it.
  • the length range here refers to the maximum and minimum limits of the length of the resource selection window, and the length of the resource selection window determined by the terminal needs to be between the maximum and minimum.
  • the ratio refers to the ratio of the length of the resource selection window selected by the terminal to the length of the resource selection window selectable by the terminal.
  • the start time of the resource selection window includes at least one of the following:
  • the start time of the resource selection window starts at least from the time corresponding to the fourteenth time interval after the resource selection is triggered;
  • the time of triggering resource selection is n
  • the fourteenth time interval is T_gap1.
  • T_gap is a value pre-defined by the protocol/pre-configured/configured by the upper layer, for example, T_gap1 is 32 time slots; then the resource selection window starts The time starts at least from n+T_gap1.
  • the start time of the resource selection window is greater than or equal to the time corresponding to the fifteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window should be greater than or equal to the time corresponding to n+T_gap2.
  • the start time of the resource selection window starts from n+T1;
  • n is the resource selection trigger time (that is, the time when resource selection is triggered)
  • T1 is the minimum time for resource selection defined by the protocol.
  • the end time of the resource selection window includes at least one of the following:
  • the end time of the resource selection window is within a range less than the delay budget (PDB) of the data packet;
  • the end time of the resource selection window is within the first preset time range after the resource selection is triggered;
  • the first preset time is a resource selection time limit for the terminal to implement selection.
  • step 43 the embodiment of the present invention further includes:
  • the terminal performs at least one of the following:
  • the terminal needs to trigger a new resource selection window.
  • the position of the resource selection window has the same restriction as the position of the first resource selection window of the terminal, that is, within the range of the PDB of the first data packet and/or the range of a resource selection time limit selected by the terminal
  • the position of the resource selection window is not the same as the first resource selection window of the terminal. It may be that the terminal realizes a new realization selection.
  • the range of the resource selection time limit is that of the resource selection window. Scope.
  • the size of the resource selection window is the same as the size of the first resource selection window, or is an independently configured length, or the size of the first resource selection window is multiplied by a zoom factor.
  • the terminal transmits the retransmission of the current transport block (TB) corresponding to the first data packet in the optional resources of the next period;
  • the above-mentioned first condition includes one of the following:
  • the terminal receives a non-acknowledgement (NACK) of the first data packet in the resource selection window, and the terminal does not have reserved resources or the terminal does not have dynamically reserved resources;
  • NACK non-acknowledgement
  • the terminal receives the discontinuous transmission (DTX) of the first data packet in the resource selection window, and the terminal does not have reserved resources or the terminal does not have dynamically reserved resources;
  • DTX discontinuous transmission
  • this situation means that the terminal sends the first data packet, but the terminal does not receive any feedback information at the feedback position corresponding to the first data packet. This situation can be equivalent to thinking that the terminal has received it. NACK.
  • the terminal does not receive the acknowledgement information (ACK) of the first data packet in the resource selection window, and the terminal does not have reserved resources or the terminal does not have dynamically reserved resources.
  • ACK acknowledgement information
  • the terminal if a NACK/DTX is received at the terminal, and at this time, the terminal cannot configure the resource selection window [n+T1', n+T2'] in the upper layer (that is, the vertical line fills the box in the figure). (Shown) to select a resource, the terminal triggers a new resource selection window within the scope of the PDB (that is, as shown in the horizontal line filled box in the figure), and the length Y2 of the new resource selection window is the value configured by the higher layer.
  • time unit of the start time, end time, time interval, time range, etc. mentioned in the embodiment of the present invention may be milliseconds (ms), time slot (slot), sub-slot (sub-slot) , Logical slot (logical slot), logical sub-slot (logical sub-slot), sub-frame (sub-frame), transmission time interval (TTI) and absolute time (absolute time), of course, this
  • ms milliseconds
  • time slot time slot
  • sub-slot sub-slot
  • Logical slot logical slot
  • logical sub-slot logical sub-slot
  • sub-frame sub-frame
  • TTI transmission time interval
  • absolute time absolute time
  • the embodiments of the present invention can be applied to NR sidelink terminals.
  • the terminal does not need to continuously detect the system, which can save the energy of terminal detection and improve the terminal’s performance. efficiency.
  • an embodiment of the present invention provides a terminal 900, including:
  • the first obtaining module 901 is configured to obtain configuration information of a detection window in a part of the detection mechanism
  • the second obtaining module 902 is configured to perform detection in the detection window indicated by the configuration information to obtain a detection result
  • the third obtaining module 903 is configured to obtain an optional resource set according to the detection result.
  • the configuration information of the detection window includes at least one of the following:
  • the position configuration parameter of the detection window is the position configuration parameter of the detection window.
  • the length configuration parameter of the detection window includes at least one of the following:
  • the length range of the detection window is the length range of the detection window.
  • the length of the detection window is configured to be at least one of the following:
  • the length of the detection window configuration parameter is determined by the length of the resource selection window.
  • the position configuration parameter of the detection window includes: at least one of the start time of the detection window, the end time of the detection window, and the position of the detection window;
  • the start time of the detection window includes one of the following:
  • the start time of the detection window is the time corresponding to the first time interval before the terminal triggers resource selection or reselection;
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection;
  • the end time of the detection window includes:
  • the end time of the detection window is the time corresponding to the third time interval before the terminal triggers resource selection or reselection;
  • the position of the detection window includes one of the following:
  • the position of the detection window is determined by the position of the resource selection window
  • the location of the detection window is determined by the resource selected by the terminal.
  • the first time interval and/or the third time interval are values predefined, preconfigured or configured by the protocol.
  • the start moment of the detection window includes at least one of the following:
  • the start time of the detection window is the time corresponding to the fourth time interval before the resource selection window
  • the start time of the detection window is the start time of the resource selection window
  • the start time of the detection window is the start time of the optional resource selection window
  • the start time of the detection window is the time corresponding to the fifth time interval before the resource selection window and the time corresponding to the later one of the start time of the optional resource selection window;
  • the start time of the detection window is the time corresponding to the sixth time interval before the resource selection window and the time corresponding to the later one of the start times of the resource selection window.
  • the end moment of the detection window includes at least one of the following:
  • the end time of the detection window is the end time of the resource selection window
  • the end time of the detection window is the time corresponding to the seventh time interval before the end time of the resource selection window;
  • the end time of the detection window is the time corresponding to the first eighth time interval of the transmission resource selected by the terminal.
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection
  • the end time of the detection window is:
  • the position of the detection window is determined by the resource selected by the terminal, and includes at least one of the following:
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource
  • the position of the detection window is between the time corresponding to the previous twelfth time interval and the time corresponding to the previous thirteenth time interval of the selected resource.
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource, and if the obtained start time of the detection window is before the current time, the current time is the start time of the detection window.
  • the end time of the detection window is:
  • the location of the detection window is between the time corresponding to the previous twelfth time interval and the time corresponding to the previous thirteenth time interval of the selected resource, and the obtained start time of the detection window is before the current time ,
  • the current time is the start time of the detection window.
  • the location of the detection window is between the time corresponding to the first twelfth time interval of the selected resource and the time corresponding to the previous thirteenth time interval, if the obtained end time of the detection window is before the current time , The acquired detection window becomes invalid.
  • the method for acquiring the position configuration parameter of the detection window includes:
  • the detection window is determined by the location of the resource selection window and high-level parameter indications
  • the detection window is determined by the first period.
  • the first cycle includes at least one of the following:
  • the period of data to be transmitted by the terminal is the period of data to be transmitted by the terminal.
  • the position configuration information of the detection window indicated by the high-level parameter is k bits, and the value of the bit length of k is related to at least one of the following:
  • k is an integer.
  • the value of the bit length of k is determined by the period value of the data to be transmitted by the terminal, the configured period value, or the period value configured in the first resource pool.
  • k ceil (the number of time slots corresponding to T_sensingwindow divided by the value of the first cycle);
  • ceil(*) represents a round-up function
  • T_sensingwindow is the length of the first detection window
  • each period value corresponds to one k-bit information
  • the higher layer configures multiple k-bit indications; or,
  • the higher layer configures one indication information, where the size of the indication information is the maximum value among multiple k bit lengths.
  • the first period includes at least one period value, and the at least one period value corresponds to at least one of the following:
  • At least one period value configured by the radio resource control RRC
  • At least one period value indicated by the downlink control information DCI At least one period value indicated by the downlink control information DCI.
  • the minimum number of first cycles used for terminal detection is predefined, pre-configured or configured by the protocol.
  • the method further includes:
  • the fourth obtaining module is used to obtain configuration information of the resource selection window in part of the detection mechanism
  • the configuration information of the resource selection window includes at least one of the following:
  • the location configuration parameters of the resource selection window are the location configuration parameters of the resource selection window.
  • the length configuration parameter of the resource selection window includes one of the following:
  • the ratio of the length of the resource selection window is the ratio of the length of the resource selection window.
  • the ratio of the length of the resource selection window is: the ratio of the length of the resource selection window selected by the terminal to the length of the resource selection window selectable by the terminal.
  • the start time of the resource selection window includes at least one of the following:
  • the start time of the resource selection window starts at least from the time corresponding to the fourteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window is greater than or equal to the time corresponding to the fifteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window starts from n+T1;
  • n is the resource selection trigger moment
  • T1 is the minimum time for resource selection defined by the protocol.
  • the end time of the resource selection window includes at least one of the following:
  • the end time of the resource selection window is within the range of less than the delay budget PDB of the data packet
  • the end time of the resource selection window is within the first preset time range after the resource selection is triggered.
  • the method further includes:
  • the execution module is used to execute at least one of the following if the first condition is met in the partial detection mechanism:
  • the terminal transmits the retransmission of the current transmission block corresponding to the first data packet in the optional resources of the next period;
  • the first data packet is discarded.
  • the first condition includes one of the following:
  • the terminal receives the unacknowledged response of the first data packet in the resource selection window, and the terminal does not have reserved resources or the terminal does not have dynamically reserved resources;
  • the terminal receives the discontinuous transmission DTX of the first data packet in the resource selection window, and the terminal does not have reserved resources or the terminal does not have dynamically reserved resources;
  • the terminal does not receive the confirmation response information of the first data packet in the resource selection window, and the terminal does not have reserved resources or the terminal does not have dynamically reserved resources.
  • the terminal embodiment is a terminal corresponding to the above-mentioned resource selection method applied to the terminal, and all the implementation manners of the above-mentioned embodiment are applicable to the terminal embodiment, and the same technical effect can be achieved.
  • FIG. 10 is a schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present invention.
  • the terminal 100 includes but is not limited to: a radio frequency unit 1010, a network module 1020, an audio output unit 1030, an input unit 1040, a sensor 1050, a display unit 1060, a user input unit 1070, an interface unit 1080, a memory 1090, a processor 1011, and a power supply 1012 and other parts.
  • a radio frequency unit 1010 a radio frequency unit 1010
  • a network module 1020 an audio output unit 1030
  • an input unit 1040 a sensor 1050
  • a display unit 1060 a user input unit 1070
  • an interface unit 1080 a memory 1090
  • a processor 1011 and a power supply 1012 and other parts.
  • the terminal structure shown in FIG. 10 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components.
  • the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer,
  • the processor 1011 is configured to obtain configuration information of a detection window in a part of the detection mechanism; perform detection in the detection window indicated by the configuration information to obtain a detection result; and obtain an optional resource set according to the detection result.
  • the terminal in the embodiment of the present invention obtains the detection window by using the configuration information of the detection window in the partial detection mechanism.
  • the detection window is part of the resources of the optional detection window, that is, the terminal only needs to be in the optional detection window.
  • the detection is performed in a subset, thereby saving the energy consumed by the detection of the terminal.
  • the radio frequency unit 1010 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the network side device, it is processed by the processor 1011; in addition, , Send the uplink data to the network side device.
  • the radio frequency unit 1010 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 1010 can also communicate with the network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 1020, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 1030 may convert the audio data received by the radio frequency unit 1010 or the network module 1020 or stored in the memory 1090 into an audio signal and output it as sound. Moreover, the audio output unit 1030 may also provide audio output related to a specific function performed by the terminal 100 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 1030 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 1040 is used to receive audio or video signals.
  • the input unit 1040 may include a graphics processing unit (GPU) 1041 and a microphone 1042, and the graphics processor 1041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame may be displayed on the display unit 1060.
  • the image frame processed by the graphics processor 1041 may be stored in the memory 1090 (or other storage medium) or sent via the radio frequency unit 1010 or the network module 1020.
  • the microphone 1042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to the mobile communication network side device via the radio frequency unit 1010 for output in the case of a telephone call mode.
  • the terminal 100 further includes at least one sensor 1050, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 1061 and/or when the terminal 100 is moved to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal gestures (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 1050 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared Sensors, etc., will not be repeated here.
  • the display unit 1060 is used to display information input by the user or information provided to the user.
  • the display unit 1060 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 1070 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the terminal.
  • the user input unit 1070 includes a touch panel 1071 and other input devices 1072.
  • the touch panel 1071 also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 1071 or near the touch panel 1071. operate).
  • the touch panel 1071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 1011, the command sent by the processor 1011 is received and executed.
  • the touch panel 1071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 1070 may also include other input devices 1072.
  • other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 1071 can be overlaid on the display panel 1061.
  • the touch panel 1071 detects a touch operation on or near it, it is transmitted to the processor 1011 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 1061.
  • the touch panel 1071 and the display panel 1061 are used as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated. Realize the input and output functions of the terminal, the specifics are not limited here.
  • the interface unit 1080 is an interface for connecting an external device with the terminal 100.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 1080 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 100 or may be used to communicate between the terminal 100 and the external device. Transfer data between.
  • the memory 1090 can be used to store software programs and various data.
  • the memory 1090 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones, etc.
  • the memory 1090 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 1011 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
  • the processor 1011 may include one or more processing units; preferably, the processor 1011 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc., the modem
  • the processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1011.
  • the terminal 100 may also include a power supply 1012 (such as a battery) for supplying power to various components.
  • a power supply 1012 (such as a battery) for supplying power to various components.
  • the power supply 1012 may be logically connected to the processor 1011 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.
  • the terminal 100 includes some functional modules not shown, which will not be repeated here.
  • the embodiment of the present invention also provides a terminal, including a processor 1011, a memory 1090, a computer program stored on the memory 1090 and running on the processor 1011, and the computer program is implemented when the processor 1011 is executed. It is applied to each process of the resource selection method embodiment on the terminal side, and can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored.
  • a computer program is stored.
  • the computer program is executed by a processor, each process of the resource selection method embodiment applied to the terminal side is implemented, and can be To achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • an embodiment of the present invention also provides a resource selection method, which is applied to a network side device, and includes:
  • Step 1101 Send the configuration information of the detection window in the partial detection mechanism to the terminal.
  • the configuration information of the detection window includes at least one of the following:
  • the position configuration parameter of the detection window is the position configuration parameter of the detection window.
  • the length configuration parameter of the detection window includes at least one of the following:
  • the length range of the detection window is the length range of the detection window.
  • the position configuration parameter of the detection window includes: at least one of the start time of the detection window, the end time of the detection window, and the position of the detection window;
  • the start time of the detection window includes one of the following:
  • the start time of the detection window is the time corresponding to the first time interval before the terminal triggers resource selection or reselection;
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection;
  • the end time of the detection window includes:
  • the end time of the detection window is the time corresponding to the third time interval before the terminal triggers resource selection or reselection;
  • the position of the detection window includes one of the following:
  • the position of the detection window is determined by the position of the resource selection window
  • the location of the detection window is determined by the resource selected by the terminal.
  • the start time of the detection window includes at least one of the following:
  • the start time of the detection window is the time corresponding to the fourth time interval before the resource selection window
  • the start time of the detection window is the start time of the resource selection window
  • the start time of the detection window is the start time of the optional resource selection window
  • the start time of the detection window is the time corresponding to the fifth time interval before the resource selection window and the time corresponding to the later one of the start time of the optional resource selection window;
  • the start time of the detection window is the time corresponding to the sixth time interval before the resource selection window and the time corresponding to the later one of the start times of the resource selection window.
  • the end time of the detection window includes at least one of the following:
  • the end time of the detection window is the end time of the resource selection window
  • the end time of the detection window is the time corresponding to the seventh time interval before the end time of the resource selection window;
  • the end time of the detection window is the time corresponding to the first eighth time interval of the transmission resource selected by the terminal.
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection
  • the end time of the detection window is:
  • the position of the detection window is determined by the resource selected by the terminal, and includes at least one of the following:
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource
  • the position of the detection window is between the time corresponding to the previous twelfth time interval and the time corresponding to the previous thirteenth time interval of the selected resource.
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource
  • the end time of the detection window is:
  • the method for acquiring the length configuration parameter of the detection window includes:
  • the length of the detection window is determined by the length of the resource selection window.
  • the method for acquiring the position configuration parameter of the detection window includes:
  • the detection window is determined by the location of the resource selection window and high-level parameter indications
  • the detection window is determined by the first period.
  • the first cycle includes at least one of the following:
  • the period of data to be transmitted by the terminal is the period of data to be transmitted by the terminal.
  • the position configuration information of the detection window indicated by the high-level parameter is k bits, and the value of the bit length of k is related to at least one of the following:
  • k is an integer.
  • the value of the bit length of k is determined by the period value of the data to be transmitted by the terminal, the configured period value, or the period value configured in the first resource pool.
  • k ceil (the number of time slots corresponding to T_sensingwindow divided by the value of the first cycle);
  • ceil(*) represents a round-up function
  • T_sensingwindow is the length of the first detection window
  • each period value corresponds to one k-bit information
  • the higher layer configures multiple k-bit indications; or,
  • the higher layer configures one indication information, where the size of the indication information is the maximum value among multiple k bit lengths.
  • the first period includes at least one period value, and the at least one period value corresponds to at least one of the following:
  • At least one period value configured by the radio resource control RRC
  • At least one period value indicated by the downlink control information DCI At least one period value indicated by the downlink control information DCI.
  • the method in the embodiment of the present invention further includes:
  • the configuration information of the resource selection window includes at least one of the following:
  • the location configuration parameters of the resource selection window are the location configuration parameters of the resource selection window.
  • the length configuration parameter of the resource selection window includes one of the following:
  • the ratio of the length of the resource selection window is the ratio of the length of the resource selection window.
  • the ratio of the length of the resource selection window is: the ratio of the length of the resource selection window selected by the terminal to the length of the resource selection window selectable by the terminal.
  • the start time of the resource selection window includes at least one of the following:
  • the start time of the resource selection window starts at least from the time corresponding to the fourteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window is greater than or equal to the time corresponding to the fifteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window starts from n+T1;
  • n is the resource selection trigger moment
  • T1 is the minimum time for resource selection defined by the protocol.
  • the end time of the resource selection window includes at least one of the following:
  • the end time of the resource selection window is within the range of less than the delay budget PDB of the data packet
  • the end time of the resource selection window is within the first preset time range after the resource selection is triggered.
  • an embodiment of the present invention also provides a network side device 1200, including:
  • the first sending module 1201 is configured to send configuration information of the detection window in the partial detection mechanism to the terminal.
  • the configuration information of the detection window includes at least one of the following:
  • the position configuration parameter of the detection window is the position configuration parameter of the detection window.
  • the length configuration parameter of the detection window includes at least one of the following:
  • the length range of the detection window is the length range of the detection window.
  • the position configuration parameter of the detection window includes: at least one of the start time of the detection window, the end time of the detection window, and the position of the detection window;
  • the start time of the detection window includes one of the following:
  • the start time of the detection window is the time corresponding to the first time interval before the terminal triggers resource selection or reselection;
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection;
  • the end time of the detection window includes:
  • the end time of the detection window is the time corresponding to the third time interval before the terminal triggers resource selection or reselection;
  • the position of the detection window includes one of the following:
  • the position of the detection window is determined by the position of the resource selection window
  • the location of the detection window is determined by the resource selected by the terminal.
  • the start time of the detection window includes at least one of the following:
  • the start time of the detection window is the time corresponding to the fourth time interval before the resource selection window
  • the start time of the detection window is the start time of the resource selection window
  • the start time of the detection window is the start time of the optional resource selection window
  • the start time of the detection window is the time corresponding to the fifth time interval before the resource selection window and the time corresponding to the later one of the start time of the optional resource selection window;
  • the start time of the detection window is the time corresponding to the sixth time interval before the resource selection window and the time corresponding to the later one of the start times of the resource selection window.
  • the end time of the detection window includes at least one of the following:
  • the end time of the detection window is the end time of the resource selection window
  • the end time of the detection window is the time corresponding to the seventh time interval before the end time of the resource selection window;
  • the end time of the detection window is the time corresponding to the first eighth time interval of the transmission resource selected by the terminal.
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection
  • the end time of the detection window is:
  • the position of the detection window is determined by the resource selected by the terminal, and includes at least one of the following:
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource
  • the position of the detection window is between the time corresponding to the previous twelfth time interval and the time corresponding to the previous thirteenth time interval of the selected resource.
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource
  • the end time of the detection window is:
  • the method for acquiring the length configuration parameter of the detection window includes:
  • the length of the detection window is determined by the length of the resource selection window.
  • the method for acquiring the position configuration parameter of the detection window includes:
  • the detection window is determined by the location of the resource selection window and high-level parameter indications
  • the detection window is determined by the first period.
  • the first cycle includes at least one of the following:
  • the period of data to be transmitted by the terminal is the period of data to be transmitted by the terminal.
  • the position configuration information of the detection window indicated by the high-level parameter is k bits, and the value of the bit length of k is related to at least one of the following:
  • k is an integer.
  • the value of the bit length of k is determined by the period value of the data to be transmitted by the terminal, the configured period value, or the period value configured in the first resource pool.
  • k ceil (the number of time slots corresponding to T_sensingwindow divided by the value of the first cycle);
  • ceil(*) represents a round-up function
  • T_sensingwindow is the length of the first detection window
  • each period value corresponds to one k-bit information
  • the higher layer configures multiple k-bit indications; or,
  • the higher layer configures one indication information, where the size of the indication information is the maximum value among multiple k bit lengths.
  • the first period includes at least one period value, and the at least one period value corresponds to at least one of the following:
  • At least one period value configured by the radio resource control RRC
  • At least one period value indicated by the downlink control information DCI At least one period value indicated by the downlink control information DCI.
  • the network side device of the embodiment of the present invention further includes:
  • the second sending module is used to send the configuration information of the resource selection window in the partial detection mechanism
  • the configuration information of the resource selection window includes at least one of the following:
  • the location configuration parameters of the resource selection window are the location configuration parameters of the resource selection window.
  • the length configuration parameter of the resource selection window includes one of the following:
  • the ratio of the length of the resource selection window is the ratio of the length of the resource selection window.
  • the ratio of the length of the resource selection window is: the ratio of the length of the resource selection window selected by the terminal to the length of the resource selection window selectable by the terminal.
  • the start time of the resource selection window includes at least one of the following:
  • the start time of the resource selection window starts at least from the time corresponding to the fourteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window is greater than or equal to the time corresponding to the fifteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window starts from n+T1;
  • n is the resource selection trigger moment
  • T1 is the minimum time for resource selection defined by the protocol.
  • the end time of the resource selection window includes at least one of the following:
  • the end time of the resource selection window is within the range of less than the delay budget PDB of the data packet
  • the end time of the resource selection window is within the first preset time range after the resource selection is triggered.
  • An embodiment of the present invention also provides a network side device, including: a memory, a processor, and a computer program stored in the memory and capable of running on the processor.
  • the computer program is executed by the processor to implement the above-mentioned application.
  • An embodiment of the present invention further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and the computer program is executed by a processor to implement the above-mentioned resource selection method applied to a network side device
  • a computer program is stored on the computer-readable storage medium, and the computer program is executed by a processor to implement the above-mentioned resource selection method applied to a network side device
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • FIG. 13 is a structural diagram of a network side device according to an embodiment of the present invention, which can realize the details of the above-mentioned resource selection method and achieve the same effect.
  • the network side device 1300 includes: a processor 1301, a transceiver 1302, a memory 1303, and a bus interface, where:
  • the processor 1301 is configured to read a program in the memory 1303 and execute the following process:
  • the configuration information of the detection window in the partial detection mechanism is sent to the terminal through the transceiver 1302.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1301 and various circuits of the memory represented by the memory 1303 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 1302 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the configuration information of the detection window includes at least one of the following:
  • the position configuration parameter of the detection window is the position configuration parameter of the detection window.
  • the length configuration parameter of the detection window includes at least one of the following:
  • the length range of the detection window is the length range of the detection window.
  • the position configuration parameter of the detection window includes: at least one of the start time of the detection window, the end time of the detection window, and the position of the detection window;
  • the start time of the detection window includes one of the following:
  • the start time of the detection window is the time corresponding to the first time interval before the terminal triggers resource selection or reselection;
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection;
  • the end time of the detection window includes:
  • the end time of the detection window is the time corresponding to the third time interval before the terminal triggers resource selection or reselection;
  • the position of the detection window includes one of the following:
  • the position of the detection window is determined by the position of the resource selection window
  • the location of the detection window is determined by the resource selected by the terminal.
  • the start time of the detection window includes at least one of the following:
  • the start time of the detection window is the time corresponding to the fourth time interval before the resource selection window
  • the start time of the detection window is the start time of the resource selection window
  • the start time of the detection window is the start time of the optional resource selection window
  • the start time of the detection window is the time corresponding to the fifth time interval before the resource selection window and the time corresponding to the later one of the start time of the optional resource selection window;
  • the start time of the detection window is the time corresponding to the sixth time interval before the resource selection window and the time corresponding to the later one of the start times of the resource selection window.
  • the end time of the detection window includes at least one of the following:
  • the end time of the detection window is the end time of the resource selection window
  • the end time of the detection window is the time corresponding to the seventh time interval before the end time of the resource selection window;
  • the end time of the detection window is the time corresponding to the first eighth time interval of the transmission resource selected by the terminal.
  • the start time of the detection window is the time corresponding to the second time interval after the terminal triggers resource selection or reselection
  • the end time of the detection window is:
  • the position of the detection window is determined by the resource selected by the terminal, and includes at least one of the following:
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource
  • the position of the detection window is between the time corresponding to the previous twelfth time interval and the time corresponding to the previous thirteenth time interval of the selected resource.
  • the start time of the detection window is the time corresponding to the first eleventh time interval of the selected resource
  • the end time of the detection window is:
  • the method for acquiring the length configuration parameter of the detection window includes:
  • the length of the detection window is determined by the length of the resource selection window.
  • the method for acquiring the position configuration parameter of the detection window includes:
  • the detection window is determined by the location of the resource selection window and high-level parameter indications
  • the detection window is determined by the first period.
  • the first cycle includes at least one of the following:
  • the period of data to be transmitted by the terminal is the period of data to be transmitted by the terminal.
  • the position configuration information of the detection window indicated by the high-level parameter is k bits, and the value of the bit length of k is related to at least one of the following:
  • k is an integer.
  • the value of the bit length of k is determined by the period value of the data to be transmitted by the terminal, the configured period value, or the period value configured in the first resource pool.
  • k ceil (the number of time slots corresponding to T_sensingwindow divided by the value of the first cycle);
  • ceil(*) represents a round-up function
  • T_sensingwindow is the length of the first detection window
  • each period value corresponds to one k-bit information
  • the higher layer configures multiple k-bit indications; or,
  • the higher layer configures one indication information, where the size of the indication information is the maximum value among multiple k bit lengths.
  • the first period includes at least one period value, and the at least one period value corresponds to at least one of the following:
  • At least one period value configured by the radio resource control RRC
  • At least one period value indicated by the downlink control information DCI At least one period value indicated by the downlink control information DCI.
  • the processor 1301 is configured to read a program in the memory 1303, and further execute the following process:
  • the configuration information of the resource selection window includes at least one of the following:
  • the location configuration parameters of the resource selection window are the location configuration parameters of the resource selection window.
  • the length configuration parameter of the resource selection window includes one of the following:
  • the ratio of the length of the resource selection window is the ratio of the length of the resource selection window.
  • the ratio of the length of the resource selection window is: the ratio of the length of the resource selection window selected by the terminal to the length of the resource selection window selectable by the terminal.
  • the start time of the resource selection window includes at least one of the following:
  • the start time of the resource selection window starts at least from the time corresponding to the fourteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window is greater than or equal to the time corresponding to the fifteenth time interval after the resource selection is triggered;
  • the start time of the resource selection window starts from n+T1;
  • n is the resource selection trigger moment
  • T1 is the minimum time for resource selection defined by the protocol.
  • the end time of the resource selection window includes at least one of the following:
  • the end time of the resource selection window is within the range of less than the delay budget PDB of the data packet
  • the end time of the resource selection window is within the first preset time range after the resource selection is triggered.
  • the network side device can be the base station (BTS) in Global System of Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or it can be broadband code division multiple access.
  • the base station (NodeB, NB) in the address (Wideband Code Division Multiple Access, WCDMA) can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in the future 5G network
  • the base stations, etc., are not limited here.
  • the division of the various modules of the above network equipment and the terminal is only a division of logical functions, and may be fully or partially integrated into one physical entity in actual implementation, or may be physically separated.
  • these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware.
  • the determining module may be a separately established processing element, or it may be integrated in a certain chip of the above-mentioned device for implementation.
  • each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more application specific integrated circuits (ASIC), or one or Multiple microprocessors (digital signal processors, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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Abstract

本发明提供了一种资源选择方法、终端及网络侧设备,涉及通信技术领域。资源选择方法,应用于终端,包括:获取部分检测机制中的检测窗口的配置信息;在所述配置信息指示的检测窗口中进行检测,得到检测结果;根据所述检测结果,获取可选资源集合。

Description

资源选择方法、终端及网络侧设备
相关申请的交叉引用
本申请主张在2020年4月1日在中国提交的中国专利申请号No.202010252514.1的优先权,其全部内容通过引用包含于此。
技术领域
本发明涉及通信技术领域,特别涉及一种资源选择方法、终端及网络侧设备。
背景技术
新空口(New Radio,NR)车联网(vehicle to everything,V2X)需要支持行人终端(pedestrian user equipment,PUE)与车之间的通信。PUE相比于车载终端(vehicle user equipment,VUE),需要额外考虑省电的问题。若PUE的发送和VUE的发送采用相同的资源池,那么PUE需要进行资源检测,尽量避开其他PUE占用的发送资源以及VUE占用的发送资源。
为了在旁链路上支持PUE在部分资源上进行发送和接收。选择资源尽量是系统中干扰比较小的资源,以提高终端的传输效率(例如:信号质量,传输次数等)及系统的资源效率。为了选择合适的资源,PUE需要对系统中的干扰进行检测,但是现在的检测方式,会消耗比较多的能量,导致PUE能量效率比较低,续航时间短。
发明内容
本发明实施例提供一种资源选择方法、终端及网络侧设备,以减小NR PUE在进行检测时,消耗的能量比较多、续航时间比较短的问题。
为了解决上述技术问题,本发明实施例采用如下方案:
第一方面,本发明实施例提供一种资源选择方法,应用于终端,包括:
获取部分检测机制中的检测窗口的配置信息;
在所述配置信息指示的检测窗口中进行检测,得到检测结果;
根据所述检测结果,获取可选资源集合。
第二方面,本发明实施例还提供一种资源选择方法,应用于网络侧设备,包 括:
发送部分检测机制中的检测窗口的配置信息给终端。
第三方面,本发明实施例还提供一种终端,包括:
第一获取模块,用于获取部分检测机制中的检测窗口的配置信息;
第二获取模块,用于在所述配置信息指示的检测窗口中进行检测,得到检测结果;
第三获取模块,用于根据所述检测结果,获取可选资源集合。
第四方面,本发明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资源选择方法的步骤。
第五方面,本发明实施例还提供一种网络侧设备,包括:
第一发送模块,用于发送部分检测机制中的检测窗口的配置信息给终端。
第六方面,本发明实施例还提供一种网络侧设备,其特征在于,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资源选择方法的步骤。
第七方面,本发明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资源选择方法的步骤。
本发明的有益效果是:
上述方案,通过利用部分检测机制中的检测窗口的配置信息,获取检测窗口,该检测窗口为可选的检测窗口的中的部分资源,也就是终端只需要在可选的检测窗口的子集中进行检测,以此节省了终端的检测所消耗能量。
附图说明
图1表示LTE sidelink资源分配模式4示意图;
图2表示LTE sidelink资源分配模式4流程示意图;
图3表示LTE部分检测示意图;
图4表示本发明实施例的资源选择方法的流程示意图之一;
图5表示检测窗口的位置示意图之一;
图6表示检测窗口的位置示意图之二;
图7表示检测窗口的位置示意图之三;
图8表示新触发的资源选择窗口的位置示意图;
图9表示本发明实施例的终端的模块示意图;
图10表示本发明实施例的终端的结构框图;
图11表示本发明实施例的资源选择方法的流程示意图之二;
图12表示本发明实施例的网络侧设备的模块示意图;
图13表示本发明实施例的网络侧设备的结构框图。
具体实施方式
为使本发明的目的、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发明进行详细描述。
在进行本发明实施例的说明时,首先对下面描述中所用到的一些概念进行解释说明。
一、车联网(vehicle to everything,V2X)简介
长期演进(Long Term Evolution,LTE)系统从第12个发布版本开始支持旁链路(sidelink,或译为副链路,侧链路,边链路,直接通信链路等)传输,用于用户设备(User Equipment,UE,也称终端)之间不通过网络设备,直接在物理层上进行数据传输。LTE sidelink是基于广播进行通讯的,虽然可用于支持V2X的基本安全类通信,但不适用于其他更高级的V2X业务。第五代(5Generation,5G)新空口(New Radio,NR)系统将支持更加先进的sidelink传输设计,例如,单播、多播或组播等,从而可以支持更全面的业务类型。
LTE sidelink的设计适用于特定的公共安全事务(如火灾场所或地震等灾难场所进行紧急通讯),或车联网(vehicle to everything,V2X)通信等。车联网通信包括各种业务,例如,基本安全类通信,高级(自动)驾驶,编队,传感器扩展等等。由于LTE sidelink只支持广播通信,因此主要用于基本安全类通信,其他在时延、可靠性等方面具有严格服务质量(QoS)需求的高级V2X业务将通过NR sidelink支持。
在NR R16V2X中支持车到车(Vehicle to Vehicle,V2V)的通信。
二、资源分配
LTE sidelink设计支持两种资源分配模式,分别是调度资源分配(Scheduled  resource allocation)模式与自主资源选择(autonomous resource selection)模式。前者由网络侧设备控制并为每个UE分配资源,后者由UE自主选择资源。其中,LTE sidelink资源分配模式1(mode 1)为设备到设备(Device-to-Device,D2D)的调度资源分配模式,LTE sidelink资源分配mode 2为D2D的自主资源分配模式;LTE sidelink资源分配mode 3为V2X的调度资源分配模式,LTE sidelink资源分配mode 4为V2X的自主资源分配模式;
LTE sidelink mode 4的基本工作原理如图1所示:
在检测窗(sensing window)内进行测量,在每个检测传输时间间隔(Transmission Time Interval,TTI)内解调度分配(scheduling assignment,SA)及进行干扰测量。UE根据图2中所示的步骤进行资源选择:
步骤S11,排除SA指示的被占用资源,
此步骤主要实现的是:终端解调收到的SA,得到其他UE资源预留资源,排除其他UE预留的资源;
步骤S12,根据优先级获取干扰门限值;
步骤S13,排除干扰大于门限值的候选资源;
此步骤主要是在sensing window内进行能量检测,测量参考信号强度指示(reference signal strength indication,RSSI),根据测量结果,排除干扰大于门限值的候选资源。
步骤S14,判断剩余候选资源是否占大于总资源的20%,若否,则执行步骤S15,否则执行步骤S16。
步骤S15,调整烦扰门限值,继续执行步骤S13;
步骤S16,从剩余资源中选择20%的资源为资源集合;
步骤S17,从候选资源集合中随机选择资源作为预留资源;
此步骤主要是在选择窗内,从干扰最小的20%的资源中随机选择一个子帧(subframe)进行周期的资源预留。
NR V2X定义了两种资源分配mode,一种是mode1,为基站调度资源;另一种是mode2,UE自己决定使用什么资源进行传输。此时资源信息可能来自基站的广播消息或者预配置的信息。UE如果工作在基站范围内并且与基站有RRC连接,可以是mode1和/或mode2,UE如果工作在基站范围内但与基站没有RRC连接,只能工作在mode2。如果UE在基站范围外,那么只能工作在mode2,根 据预配置的信息来进行V2X传输。
对于mode 2,具体的工作方式如下:1)TX UE在资源选择被触发后,首先确定资源选择窗口,资源选择窗口的下边界在资源选择触发后的T1时间,资源选择的上边界在触发后的T2时间,其中T2是UE实现的方式在其TB传输的包延迟预算(packet delay budget,PDB)内选择的值,T2不早于T1。2)UE在资源选择之前,需要确定资源选择的备选资源集合(candidate resource set),根据资源选择窗口内的资源上测量的参考信号接收功率(Reference Signal Receiving Power,RSRP)与相应的RSRP threshold作对比,如果RSRP低于RSRP threhold,那么该资源可以纳入备选资源集合。3)备选资源集合确定后,上报给媒体接入控制(MAC)层,MAC层从候选资源集合中随机选择一个资源作为该UE的资源。另外,UE在本次传输可以为接下来的传输预留传输资源。
且NR V2X支持链式的资源预留方式,也就是,一个旁链路控制信息(Sidelink Control Information,SCI)可以预留指示当前时隙的频域资源,最多还可以再额外预留两个资源,在下一个资源中传输时,可以再指示两个预留资源。在选择窗内,可以采用动态预留的方式持续预留资源。
三、部分检测(Partial sensing)
LTE V2X中部分检测主要是为了省电而设计的,是为了支持P2V的通信,PUE支持两种模式的资源选择方式。一种为随机的资源选择;另一种模式为部分检测模式,先在部分资源上进行检测,基于部分检测的结果选择资源,进行半静态的资源预留。其中,PUE选择哪种模式为无线资源配置(Radio Resource Control,RRC)配置的,当RRC配置为支持两种模式的资源选择时,PUE实现决定采用哪种资源选择方式。
具体地,终端进行部分检测并进行资源检测的方式如图3所示。
其中,PUE检测窗口为在[n-1000,n]的范围内(即n-1000至n之间的无填充框表示检测窗口的范围)的的资源子集,每个小窗口(即图中的斜线填充框)的长度Yms,其为PUE检测窗口的长度。k为RRC配置的参数,k的取值范围可以为{1,2,3,…,10}。在选择窗口内的[n+T1,n+T2]内的横线填充框表示的为高层配置的PUE选择窗口。PUE在斜线填充框的PUE检测窗口中检测其他终端发送的SCI,根据检测的SCI以及预留周期,推测其他终端在横线填充框所指示的PUE选择窗口内的资源预留情况,该PUE可以根据这些信息排除选择窗口中 不满足条件的资源。在剩余的资源中选择至少20%(窗长Y的20%)的资源作为候选资源集合,上报给媒体接入控制(MAC)层,MAC层从候选资源集合中随机选择一个资源作为该PUE的资源。该PUE对选择的资源进行周期预留,预留周期在SCI中指示。
本发明针对NR PUE需要对系统中的干扰进行检测,会消耗较多的能量,导致PUE能耗较大,续航能力差,提供一种资源选择方法、终端及网络侧设备。
如图4所示,本发明实施例提供一种资源选择方法,应用于终端,包括:
步骤41,获取部分检测机制中的检测窗口的配置信息;
步骤42,在所述配置信息指示的检测窗口中进行检测,得到检测结果;
需要说明的是,配置信息所指示的检测窗口为可选的检测窗口中的一部分检测窗口,终端只需要在配置的这一部分检测窗口中进行检测即可。
步骤43,根据所述检测结果,获取可选资源集合;
需要说明的是,此步骤指的是终端根据在配置的检测窗口中的检测结果,在资源选择窗口中获取可选资源集合。
需要说明的是,本发明实施例所提到的终端指的是PUE。
需要说明的是,终端在本发明实施例中所说的检测窗口(即资源检测窗口)内的资源上可以执行下列操作中的至少一项:
监听旁链路控制信道(PSCCH)/SCI;
解调PSCCH/SCI;
监听/解调PSSCH;
监听/解调旁链路反馈信道(PSFCH);
监听/解调旁链路反馈控制信息(SFCI);
监听/解调混合自动重传请求应答(HARQ-ACK);
测量参考信号接收功率(RSRP);
测量接收的信号强度指示(RSSI),例如PSCCH/PSSCH DMRS RSRP/RSSI);
测量信道占用率(Channel occupancy Ratio,CR)的资源;
测量信道忙率(Channel busy ratio,CBR)的资源。
需要说明的是,本发明实施例主要从连续的检测窗口配置和非连续的检测窗口配置为例对本发明实施例进行详细说明如下。
一、连续的检测窗口配置
具体地,终端可以通过协议约定、配置和/或预配置的方式获取至少一个检测窗口的配置信息。
需要说明的是,该配置、预配置可以为网络侧设备配置,也可以为终端配置的;具体地,网络侧设备配置可以为无线资源控制(RRC)配置、媒体接入控制控制单元(MAC CE)配置、下行控制信息(DCI)指示等;终端配置可以为PC5-RRC配置、旁链路控制信息(SCI)指示等。
需要说明的是,在此种情况下,本发明实施例的检测窗口的配置信息,包括以下至少一项:
A11、检测窗口的长度配置参数;
进一步地,该检测窗口的长度配置参数,包括以下至少一项:
A111、检测窗口的长度;
需要说明的是,此处直接限定的是检测窗口的长度的具体值。
A112、检测窗口的长度的最小值;
具体地,此种情况下,该最小值指的是检测窗口的长度由终端自己确定,限制长度的最小值是为了避免终端选择的检测窗口长度过小;此处不限制检测窗口的长度的最大值,只要终端确定的检测窗口的长度大于该最小值即可。
A113、检测窗口的长度范围;
需要说明的是,此处的长度范围指的是限定检测窗口的长度的最大值和最小值,终端确定的检测窗口的长度需要在最大值和最小值之间。
还需要说明的是,该长度配置参数为以下至少一项:
A1101、协议预定义的参数;
例如,该长度配置参数取决于SCI中指示的时域资源间隔,比如,32个时隙。
A1102、RRC配置的参数;
需要说明的是,对于RRC配置来说,当采用RRC专有信令进行配置时,此时可以称为RRC配置,当采用RRC广播信令进行配置时,此时可以称为RRC预配置。需要说明的是,例如,在终端处于空闲态时,需要采用RRC预配置的方式,而当终端处于连接态时,可以采用RRC预配置的方式,也可以采用RRC配置的方式。
A1103、MAC CE指示的参数;
A1104、DCI指示的参数;
A1105、SCI指示的参数;
需要说明的是,该长度配置参数可以为上述的A1102-A1106中任意一项或多项中为每个资源池、每个带宽部分(band width part,BWP)、每个载波配置的参数。
A1106、根据资源选择窗口的开始时刻和/或结束时刻确定的参数;
也就是说,此种情况下,配置的是资源选择窗口的开始时刻和/或结束时刻,即检测窗口的长度取决于资源选择窗口的开始时刻和/或结束时刻,不额外规定检测窗口的长度。
A1107、检测窗口的长度配置参数由资源选择窗口的长度确定;
也就是说,此种情况下,是直接限定检测窗口的长度,即检测窗口的长度配置参数是直接根据资源选择窗口的长度获取的。
A12、检测窗口的位置配置参数;
具体地,需要说明的是,该检测窗口的位置配置参数包括:检测窗口的开始时刻、检测窗口的结束时刻和检测窗口的位置中的至少一项。
具体地,检测窗口的开始时刻,包括以下一项:
A121、检测窗口的开始时刻为终端触发资源选择或重选前的第一时间间隔所对应的时刻;
也就是说,此种情况下,检测窗口在终端触发资源选择或重选前的第一时间间隔所对应的时刻使能。
需要说明的是,例如,终端触发资源选择或重选的时刻为n11,该第一时间间隔为T11,则检测窗口的开始时刻n11-T11。
其中,所述第一时间间隔为协议预定义、预配置或配置的值,例如,T11的取值可以是32个时隙。还需要说明的是,T11的取值也可以为0,表示检测窗口的开始时刻为终端触发资源选择或重选的时刻。
A122、检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻;
例如,触发资源选择的时刻为n12,第二时间间隔为T12,则检测窗口的开始时刻为n12+T12。需要说明的是,T12可以是协议预定义/预配置/配置的值,不排除T12=0。
进一步需要说明的是,在此种情况下,检测窗口的结束时刻为以下一项:
A1221、终端选择的传输资源的前第九时间间隔所对应的时刻;
例如,终端选择的传输资源的时刻为n13,第八时间间隔为T13,则检测窗口的结束时刻为n13-T13。
A1222、资源选择窗口结束时刻的前第十时间间隔所对应的时刻;
例如,资源选择窗口结束时刻的时刻为n14,第九时间间隔为T14,则检测窗口的结束时刻为n14-T14。
具体地,所述检测窗口的结束时刻,包括
检测窗口的结束时刻为终端触发资源选择或重选前的第三时间间隔所对应的时刻;
需要说明的是,例如,终端触发资源选择或重选的时刻为n15,该第三时间间隔为T15,则检测窗口的开始时刻n15-T15。
其中,所述第三时间间隔为协议预定义、预配置或配置的值。
具体地,所述检测窗口的位置,包括以下一项:
A123、检测窗口的位置由资源选择窗口的位置确定;
也就是说,在此种情况下,本发明实施例的方法,还包括:根据资源选择窗口的位置,确定检测窗口的位置。
如图5所示,当高层配置为部分检测模式,高层配置资源选择窗口长度的最小值(图中横线填充框所示),终端实现确定检测窗口的具体大小以及位置,可选的检测窗口的配置范围在[n+T1,n+T2]的范围内。定义有一个检测窗口为资源池上连续时隙的检测窗口,预定义检测窗口从资源选择窗口(图5中横线填充框所示为资源选择窗口)的前T时刻(T=32时隙)开始,也就是图5中的n+T1’-32的位置开始,到资源选择窗口结束的位置n+T2’停止,即图5中的斜线填充框表示实际进行检测的资源检测窗口的范围。需要说明的是,若在终端发送数据所采用的资源池上周期预留不使能,则不定义额外的检测窗口。
可选地,在此种情况下,检测窗口的开始时刻包括以下至少一项:
A1231、检测窗口的开始时刻为资源选择窗口前的第四时间间隔所对应的时刻;
需要说明的是,这里资源选择窗口为高层配置的用于部分检测的资源选择窗口的范围,也就是说,在该资源选择窗口中终端进行资源选择。
例如,资源选择窗口的开始时刻为n16,该第四时间间隔为T16,则检测窗口的开始时刻n16-T16。
A1232、检测窗口的开始时刻为资源选择窗口的开始时刻;
需要说明的是,该资源选择窗口的开始时刻指的是:实际进行资源选择所对应的资源选择窗口的开始时刻。
例如,资源选择窗口的开始时刻为n17,则检测窗口的开始时刻n17。
A1233、检测窗口的开始时刻为可选的资源选择窗口的开始时刻;
需要说明的是,该可选的资源选择窗口并不是终端实际进行资源选择所对应的资源选择窗口,通常该可选的资源选择窗口要大于或等于终端实际进行资源选择所对应的资源选择窗口。
例如,可选的资源选择窗口的开始时刻为n18,则检测窗口的开始时刻n18。
A1234、检测窗口的开始时刻为资源选择窗口前的第五时间间隔所对应的时刻和可选的资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻;
需要说明的是,此种情况指的是,资源选择窗口的开始时刻为n18,第五时间间隔为T18,可选的资源选择窗口的开始时刻为n19,若n18-T18小于n19,则将n19确定为检测窗口的开始时刻,若n18-T18大于n19,则将n18-T18确定为检测窗口的开始时刻。
A1235、检测窗口的开始时刻为资源选择窗口前的第六时间间隔所对应的时刻和资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻。
需要说明的是,此种情况指的是,资源选择窗口的开始时刻为n20,第六时间间隔为T20,若n20-T20小于n20,则将n20确定为检测窗口的开始时刻,若n20-T20大于n20,则将n20-T20确定为检测窗口的开始时刻。
可选地,在此种情况下,检测窗口的结束时刻包括以下至少一项:
A1236、检测窗口的结束时刻为资源选择窗口的结束时刻;
例如,资源选择窗口的结束时刻为n21,则检测窗口的开始时刻n21。
A1237、检测窗口的结束时刻为资源选择窗口的结束时刻前的第七时间间隔所对应的时刻;
例如,资源选择窗口的结束时刻为n22,第七时间间隔为T22,例如,T22为32个时隙,则检测窗口的结束时刻为n22-T22。
A1238、检测窗口的结束时刻为终端选择的传输资源的前第八时间间隔所对 应的时刻;
例如,终端选择的传输资源的开始时刻为n23,第八时间间隔为T23,则检测窗口的结束时刻为n23-T23。需要说明的是,T23可以是协议预定义/预配置/配置的值,不排除T23=0。
A124、检测窗口的位置由终端已选资源确定;
也就是说,在此种情况下,本发明实施例的方法,还包括:根据终端已选资源,获取检测窗口的位置。
需要说明的是,该已选资源是资源选择窗口中选择的(例如,可以为终端选择的资源的最早的一个时间资源),和/或,已选资源是终端预留的资源。
需要说明的是,此种情况下的实现方式,包括以下至少一项:
A1241、检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻;
例如,已选资源的开始时刻为n24,第十一时间间隔为T24,则检测窗口的开始时刻为n24-T24。需要说明的是,T24为协议预定义/预配置/配置的值,例如,T24的取值为32个时隙;或者,T24的取值为32+T3/31+T3/33+T3个时隙,T3为终端准备资源重选的处理时间。
还需要说明的是,在此种情况下,若获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻;具体地,此处所说的当前时刻指的是终端在终端发送数据所采用的资源池中某个时隙/时间节点上的绝对的时刻。
进一步地,在此种情况下,检测窗口的结束时刻为以下一项:
A31、终端选择的传输资源的前第十四时间间隔所对应的时刻;
例如,终端选择的传输资源的时刻为n25,第十四时间间隔为T25,则检测窗口的结束时刻为n25-T25。
A32、资源选择窗口结束时刻的前第十五时间间隔所对应的时刻;
例如,资源选择窗口结束时刻的时刻为n26,第十四时间间隔为T26,则检测窗口的结束时刻为n26-T26。
A1242、检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间;
需要说明的是,已选资源所在的时刻为n27,第十二时间间隔为T_x,第十三时间间隔为T_y,则检测窗口的位置位于n27-T_x与n27-T_y之间;例如,T_x的取值可以是32个时隙;T_x的取值也可以是32+T3/31+T3/33+T3个时隙,T3 为终端准备资源重选的处理时间;T_y的取值可以是T3。
进一步需要说明的是,在此种情况下,若获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻。具体地,此处所说的当前时刻指的是终端在终端发送数据所采用的资源池中某个时隙/时间节点上的绝对的时刻。
还需要说明的是,在此种情况下,若获取得到的检测窗口的结束时刻在当前时刻之前,则获取的检测窗口失效。
二、非连续的检测窗口配置
需要说明的是,此种情况下,定义的检测窗口不仅与资源选择窗口的位置相关,还与终端发送数据所采用的资源池中定义的周期的配置相关,或者与为终端配置的周期相关;也就是说,此种情况下确定的检测窗口是与周期以及资源选择窗口的位置相关的窗口。
需要说明的是,在此种情况下,本发明实施例的检测窗口的配置信息,包括以下至少一项:
B11、检测窗口的长度配置参数;
需要说明的是,此种情况下,检测窗口的长度配置参数的获取方式包括:
检测窗口的长度由资源选择窗口的长度确定。
具体地,单个检测窗口的长度等于资源选择窗口的长度。
B12、检测窗口的位置配置参数;
需要说明的是,此种情况下,所述检测窗口的位置配置参数的获取方式包括:
B121、检测窗口由资源选择窗口的位置以及高层参数指示确定;
需要说明的是,高层参数指示的检测窗口的位置配置信息为k比特(其中,k为整数),k的比特长度的取值与以下至少一项相关:
B1211、终端待传输数据的周期值;
需要说明的是,此处k的比特长度的取值不一定是资源池配置中存在的周期值对应的k的比特长度。
B1212、第一资源池中配置的周期值;
需要说明的是,该第一资源池指的是终端发送数据所采用的资源池。
B1213、第一资源池是否使能周期预留。
需要说明的是,若第一资源池使能周期预留,则k的比特长度的取值由终 端待传输数据的周期值、配置的周期值或第一资源池中配置的周期值确定。若第一资源池不使能周期预留,则k的码点取值为全0设置。
还需要说明的是,上述提到的k=ceil(T_sensingwindow对应的时隙数除以第一周期的取值);
其中,ceil(*)表示向上取整函数,T_sensingwindow为第一检测窗口的长度,需要说明的是,该第一检测窗口对应R16中定义的周期预留使能时的检测窗口,例如,该第一检测窗口的长度为1000ms。
还需要说明的是,若上述提到的周期值为一个周期值,则上述的k的比特长度为计算出来的值,若终端所在的资源池中存在至少两个周期值时,每个周期值对应一个k比特信息,则满足以下一项:
B21、高层配置多个k比特的指示;
也就是说,此种情况下,终端的检测窗口为多个k值指示的合集;具体地,不同的k比特的比特长度的大小可以相同也可以不同,若k比特的比特长度的大小不同,周期T1,T2,T3,T4,计算得到k1,k2,k3,k4,则高层配置k1,k2,k3,k4,4个bitmap指示检测窗口的配置。
B22、高层配置一个指示信息,其中,所述指示信息大小为多个k的比特长度中的最大值;
例如,周期T1,T2,T3,T4,计算得到k1,k2,k3,k4,则高层配置一个k=max(k1,k2,k3,k4),指示终端的检测窗口。
B122、检测窗口由第一周期确定;
具体地,所述第一周期,包括以下至少一项:
B1221、为终端配置的周期;
B1222、为资源池配置的周期;
B1223、终端待传输数据的周期。
还需要说明的是,所述第一周期包括至少一个周期值,所述至少一个周期值对应以下至少一项:
B31、RRC配置的至少一个周期值;
B32、SCI指示的至少一个周期值;
B33、DCI指示的至少一个周期值;
需要说明的是,此处的一种处理情况为:RRC配置至少一个周期值,SCI或 DCI指示RRC配置的周期值中的一个或多个周期值。
还需要说明的是,终端检测所使用的第一周期的最小数目(Num_P)由协议预定义、预配置或配置。
需要说明的是,当第一周期中包括至少一个周期值时,则第一周期指示的为一个周期集合,RRC预配置/RRC配置/MAC CE指示/DCI指示/SCI指示该使用的周期集合中的周期值/集合中周期的编号。
进一步需要说明的是,具体指示的为周期集合中取值最大的/最小的Num_P个周期,或者为索引最大的/最小的Num_P个周期。
例如,当只配置一个K时,如图6所示,当高层配置为部分检测模式,高层配置资源选择窗口长度的最小值,高层配置确定选择窗口的具体大小以及位置,配置范围在[n+T1,n+T2]的范围内。定义有一个检测窗口1为资源池上连续T=32个(逻辑)时隙的检测窗口,从资源选择窗口的前T时刻开始,也就是图6中的n+T1’-32的位置开始,到资源选择窗口结束的位置n+T2’停止。
若在该资源池上周期预留使能,则定义检测窗口2,根据高层配置的部分检测值k的取值,若为10比特,指示为0100000011,高层配置的该资源池的周期为100ms/100slots,则检测窗口2的位置为[n+T1’-100*k,n+T2’-100*k],也就是[n+T1’-900,n+T2’-900],[n+T1’-200,n+T2’-200],[n+T1’-100,n+T2’-100]均对应检测窗口2,具体地,确定的检测窗口2如图中斜线填充框所示。
例如,当只配置多个K时,如图7所示,当高层配置为部分检测模式,高层配置资源选择窗口长度的最小值,高层配置确定选择窗口的具体大小以及位置,配置范围在[n+T1,n+T2]的范围内。定义有一个检测窗口1为资源池上连续T=32个时隙的检测窗口,从资源选择窗口的前T时刻开始,也就是图7中的n+T1’-32的位置开始,到资源选择窗口结束的位置n+T2’停止。
若在该资源池上周期预留使能,则定义资源检测窗口2。配置周期分别为100ms,以及200ms。根据高层配置的部分检测值k的取值,针对100ms周期,为k1为10比特(根据1000除以100等于10),则检测窗口的位置为[n+T1’-100*k1,n+T2’-100*k1],若指示为0100000011,对应的检测窗口2为[n+T1’-900,n+T2’-900],[n+T1’-200,n+T2’-200],[n+T1’-100,n+T2’-100];针对200ms周期,k2为5比特((根据1000除以200等于5)),则检测窗口2的位置为,[n+T1’-200*k2,n+T2’-200*k2],若指示为01001,则对应的检测窗口为[n+T1’-800,n+T2’- 800],[n+T1’-200,n+T2’-200]。也就是[n+T1’-900,n+T2’-900],[n+T1’-800,n+T2’-800],[n+T1’-200,n+T2’-200],[n+T1’-100,n+T2’-100]均对应检测窗口2。
需要说明的是,上述给出了两种检测窗口的配置方式,若本发明实施例中只给出了一种配置方式,则终端就利用这种配置方式进行检测窗口的确定即可,若本发明实施例中同时给出了两种配置方式,则终端在部分检测机制中,若满足以下条件,则触发相应的检测窗口:
条件一、若周期预留使能,触发上述两种方式定义的检测窗口;或者,若周期预留使能,则触发第二种方式定义的检测窗口。
条件二、若周期预留不使能,则触发第一种方式定义的检测窗口。
条件三、高层配置/预配置检测窗口的上述两种方式的触发情况;
具体地,可以是显示配置或者隐式配置。具体地,条件一和条件二就是一种隐式配置的方式。
还需要说明的是,为了能获取准确的资源选择窗口,在步骤43之前,本发明实施例还包括:
获取部分检测机制中的资源选择窗口的配置信息。
需要说明的是,配置信息所指示的资源选择窗口为可选的资源选择窗口中的一部分资源选择窗口,终端只需要在配置的这一部分资源选择窗口中进行资源选择即可。
需要说明的是,终端在本发明实施例中所说的资源选择窗口内传输旁链路信息,包括PSCCH/PSSCH/PSFCH/旁链路参考信号(SL RS)。
具体地,所述资源选择窗口的配置信息包括以下至少一项:
C11、资源选择窗口的长度配置参数;
需要说明的是,资源选择窗口的长度配置参数,包括以下一项:
C111、资源选择窗口的长度;
需要说明的是,此处直接限定的是资源选择窗口的长度的具体值。
C112、资源选择窗口的长度的最小值;
具体地,此种情况下,该最小值指的是资源选择窗口的长度由终端自己确定,此处不限制资源选择窗口的长度的最大值,只要终端确定的资源选择窗口的长度大于该最小值即可。
C113、资源选择窗口的长度范围;
需要说明的是,此处的长度范围指的是限定资源选择窗口的长度的最大值和最小值,终端确定的资源选择窗口的长度需要在最大值和最小值之间
C114、资源选择窗口的长度的比值;
需要说明的是,此处的比值指的是:终端选择的资源选择窗口的长度在终端可选的资源选择窗口长度中所占的比例。
C12、资源选择窗口的位置配置参数;
具体地,在此种情况下,所述资源选择窗口的开始时刻包括以下至少一项:
C121、资源选择窗口的开始时刻至少从触发资源选择后的第十四时间间隔所对应的时刻开始;
例如,触发资源选择的时刻为n,第十四时间间隔为T_gap1,具体地,T_gap为协议预定义/高层预配置/配置的值,例如,T_gap1为32个时隙;则资源选择窗口的开始时刻至少从n+T_gap1开始。
C122、资源选择窗口的开始时刻大于或等于从触发资源选择后的第十五时间间隔所对应的时刻;
例如,触发资源选择的时刻为n,第十五时间间隔为T_gap2,则资源选择窗口的开始时刻应大于或等于n+T_gap2所对应的时刻。
C123、资源选择窗口的开始时刻从n+T1开始;
其中,n为资源选择触发时刻(即触发资源选择的时刻),T1为协议定义的资源选择的最小时间。
具体地,在此种情况下,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的结束时刻包括以下至少一项:
C124、资源选择窗口的结束时刻在小于数据包的时延预算(PDB)的范围内;
C125、资源选择窗口的结束时刻在触发资源选择后第一预设时间范围内;
需要说明的是,该第一预设时间为终端实现选择的一个资源选择时间限制。
还需要说明的是,本发明实施例中,还可以协议规定/配置资源选择窗口的结束时刻T2或T2的最大值W,例如,实际确定的资源选择窗口的结束时刻的最大值T2_max=W,或T2_max=min.(W,remaining PDB)。此种方式,有利于减少检测窗口的长度。
进一步地,还需要说明的是,步骤43之后,本发明实施例还包括:
在部分检测机制中,若满足第一条件,则终端执行以下至少一项:
D11、触发资源选择窗口;
需要说明的是,在此种情况下,终端需要触发一个新的资源选择窗口。
可选地,该资源选择窗口的位置与终端的第一个资源选择窗口的位置的限制相同,即在第一数据包PDB的范围内和/或在终端实现选择的一个资源选择时间限制的范围内;可选地,该资源选择窗口的位置与终端的第一个资源选择窗口的位置的限制不相同,可以是终端实现一个新的实现选择的一个资源选择时间限制的范围为资源选择窗口的范围。
还需要说明的是,资源选择窗口的大小与第一个资源选择窗口的大小相同,或者,为独立配置的长度,或者为第一个资源选择窗口大小乘以一个缩放因子。
D12、若周期预留使能,终端将第一数据包对应的当前传输块(Transport block,TB)的重传在下一个周期的可选资源中传输;
D13、丢弃所述第一数据包。
具体地,上述的第一条件包括以下一项:
E11、终端在资源选择窗口中收到了第一数据包的非确认应答(NACK)、且终端不存在预留资源或终端不存在动态预留的资源;
E12、终端在资源选择窗口中收到了第一数据包的非连续发送(DTX)、且终端不存在预留资源或终端不存在动态预留的资源;
需要说明的是,此种情况指的是,终端发送了第一数据包,但是在第一数据包对应的反馈位置,终端未收到任何反馈信息,此种情况可以等同于认为是终端收到了NACK。
E13、终端在资源选择窗口中没有收到第一数据包的确认应答信息(ACK)、且终端不存在预留资源或终端不存在动态预留的资源。
例如,如图8所示,若在终端收到了一个NACK/DTX,且此时终端无法在高层配置的资源选择窗口[n+T1’,n+T2’]内(即图中竖线填充框所示)选择资源,则该终端在PDB的范围内,触发一个新的资源选择窗口(即图中横线填充框所示),新的资源选择窗口的长度Y2为高层配置的值。
需要说明的是,本发明实施例中所提到的开始时刻、结束时刻、时间间隔、时间范围等的时间单位可以是毫秒(ms),时隙(slot),子时隙(sub-slot),逻辑时隙(logical slot),逻辑子时隙(logical sub-slot),子帧(sub-frame),传输时 间间隔(TTI)和绝对时间(absolute time)中的任意一种,当然,本发明实施例中也不排除上述时间单位以外的时间单位。
需要说明的是,本发明实施例可以应用于NR sidelink的终端,在NR sidelink中,使用本发明实施例的方式,终端不需要持续对系统进行检测,可以节省终端检测的能量,提高了终端的能效。
如图9所示,本发明实施例提供一种终端900,包括:
第一获取模块901,用于获取部分检测机制中的检测窗口的配置信息;
第二获取模块902,用于在所述配置信息指示的检测窗口中进行检测,得到检测结果;
第三获取模块903,用于根据所述检测结果,获取可选资源集合。
具体地,所述检测窗口的配置信息,包括以下至少一项:
检测窗口的长度配置参数;
检测窗口的位置配置参数。
进一步地,所述检测窗口的长度配置参数,包括以下至少一项:
检测窗口的长度;
检测窗口的长度的最小值;
检测窗口的长度范围。
进一步地,所述检测窗口的长度配置为,以下至少一项:
协议预定义的参数;
无线资源控制RRC配置的参数;
媒体接入控制控制单元MAC CE指示的参数;
下行控制信息DCI指示的参数;
旁链路控制信息SCI指示的参数;
根据资源选择窗口的开始时刻和/或结束时刻确定的参数;
检测窗口的长度配置参数由资源选择窗口的长度确定。
进一步地,所述检测窗口的位置配置参数包括:检测窗口的开始时刻、检测窗口的结束时刻和检测窗口的位置中的至少一项;
其中,所述检测窗口的开始时刻,包括以下一项:
检测窗口的开始时刻为终端触发资源选择或重选前的第一时间间隔所对应的时刻;
检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻;
所述检测窗口的结束时刻,包括:
检测窗口的结束时刻为终端触发资源选择或重选前的第三时间间隔所对应的时刻;
所述检测窗口的位置,包括以下一项:
检测窗口的位置由资源选择窗口的位置确定;
检测窗口的位置由终端已选资源确定。
具体地,所述第一时间间隔和/或第三时间间隔为协议预定义、预配置或配置的值。
可选地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的开始时刻包括以下至少一项:
检测窗口的开始时刻为资源选择窗口前的第四时间间隔所对应的时刻;
检测窗口的开始时刻为资源选择窗口的开始时刻;
检测窗口的开始时刻为可选的资源选择窗口的开始时刻;
检测窗口的开始时刻为资源选择窗口前的第五时间间隔所对应的时刻和可选的资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻;
检测窗口的开始时刻为资源选择窗口前的第六时间间隔所对应的时刻和资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻。
可选地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的结束时刻包括以下至少一项:
检测窗口的结束时刻为资源选择窗口的结束时刻;
检测窗口的结束时刻为资源选择窗口的结束时刻前的第七时间间隔所对应的时刻;
检测窗口的结束时刻为终端选择的传输资源的前第八时间间隔所对应的时刻。
可选地,若检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第九时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十时间间隔所对应的时刻。
可选地,所述检测窗口的位置由终端已选资源确定,包括以下至少一项:
检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻;
检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间。
具体地,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,若获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻。
具体地,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第十四时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十五时间间隔所对应的时刻。
具体地,若检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间,且获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻。
具体地,若检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间,若获取得到的检测窗口的结束时刻在当前时刻之前,则获取的检测窗口失效。
可选地,所述检测窗口的位置配置参数的获取方式包括:
检测窗口由资源选择窗口的位置以及高层参数指示确定;
检测窗口由第一周期确定。
进一步地,所述第一周期,包括以下至少一项:
为终端配置的周期;
为资源池配置的周期;
终端待传输数据的周期。
进一步地,高层参数指示的检测窗口的位置配置信息为k比特,k的比特长度的取值与以下至少一项相关:
终端待传输数据的周期值;
第一资源池中配置的周期值;
第一资源池是否使能周期预留;
其中,k为整数。
具体地,若第一资源池使能周期预留,则k的比特长度的取值由终端待传输数据的周期值、配置的周期值或第一资源池中配置的周期值确定。
具体地,k=ceil(T_sensingwindow对应的时隙数除以第一周期的取值);
其中,ceil(*)表示向上取整函数,T_sensingwindow为第一检测窗口的长度。
具体地,若终端所在的的资源池中存在至少两个周期值时,每个周期值对应一个k比特信息,则:
高层配置多个k比特的指示;或者,
高层配置一个指示信息,其中,所述指示信息大小为多个k的比特长度中的最大值。
进一步地,所述第一周期包括至少一个周期值,所述至少一个周期值对应以下至少一项:
无线资源控制RRC配置的至少一个周期值;
旁链路控制信息SCI指示的至少一个周期值;
下行控制信息DCI指示的至少一个周期值。
进一步地,终端检测所使用的第一周期的最小数目由协议预定义、预配置或配置。
可选地,在所述第三获取模块901根据所述检测结果,获取可选资源集合之前,还包括:
第四获取模块,用于获取部分检测机制中的资源选择窗口的配置信息;
所述资源选择窗口的配置信息包括以下至少一项:
资源选择窗口的长度配置参数;
资源选择窗口的位置配置参数。
具体地,所述资源选择窗口的长度配置参数,包括以下一项:
资源选择窗口的长度;
资源选择窗口的长度的最小值;
资源选择窗口的长度范围;
资源选择窗口的长度的比值。
进一步地,所述资源选择窗口的长度的比值为:终端选择的资源选择窗口的长度在终端可选的资源选择窗口长度中所占的比例。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择 窗口的开始时刻包括以下至少一项:
资源选择窗口的开始时刻至少从触发资源选择后的第十四时间间隔所对应的时刻开始;
资源选择窗口的开始时刻大于或等于从触发资源选择后的第十五时间间隔所对应的时刻;
资源选择窗口的开始时刻从n+T1开始;
其中,n为资源选择触发时刻,T1为协议定义的资源选择的最小时间。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的结束时刻包括以下至少一项:
资源选择窗口的结束时刻在小于数据包的时延预算PDB的范围内;
资源选择窗口的结束时刻在触发资源选择后第一预设时间范围内。
可选地,在所述第三获取模块903根据所述检测结果,获取可选资源集合之后,还包括:
执行模块,用于在部分检测机制中,若满足第一条件,则终端执行以下至少一项:
触发资源选择窗口;
若周期预留使能,终端将第一数据包对应的当前传输块的重传在下一个周期的可选资源中传输;
丢弃所述第一数据包。
进一步地,所述第一条件包括以下一项:
终端在资源选择窗口中收到了第一数据包的非确认应答、且终端不存在预留资源或终端不存在动态预留的资源;
终端在资源选择窗口中收到了第一数据包的非连续发送DTX、且终端不存在预留资源或终端不存在动态预留的资源;
终端在资源选择窗口中没有收到第一数据包的确认应答信息、且终端不存在预留资源或终端不存在动态预留的资源。
需要说明的是,该终端实施例是与上述应用于终端的资源选择方法相对应的终端,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。
图10为实现本发明实施例的一种终端的硬件结构示意图。
该终端100包括但不限于:射频单元1010、网络模块1020、音频输出单元1030、输入单元1040、传感器1050、显示单元1060、用户输入单元1070、接口单元1080、存储器1090、处理器1011、以及电源1012等部件。本领域技术人员可以理解,图10中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。在本发明实施例中,终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中,处理器1011用于获取部分检测机制中的检测窗口的配置信息;在所述配置信息指示的检测窗口中进行检测,得到检测结果;根据所述检测结果,获取可选资源集合。
本发明实施例的终端通过利用部分检测机制中的检测窗口的配置信息,获取检测窗口,该检测窗口为可选的检测窗口的中的部分资源,也就是终端只需要在可选的检测窗口的子集中进行检测,以此节省了终端的检测所消耗能量。
应理解的是,本发明实施例中,射频单元1010可用于收发信息或通话过程中,信号的接收和发送,具体的,将来自网络侧设备的下行数据接收后,给处理器1011处理;另外,将上行的数据发送给网络侧设备。通常,射频单元1010包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外,射频单元1010还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块1020为用户提供了无线的宽带互联网访问,如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元1030可以将射频单元1010或网络模块1020接收的或者在存储器1090中存储的音频数据转换成音频信号并且输出为声音。而且,音频输出单元1030还可以提供与终端100执行的特定功能相关的音频输出(例如,呼叫信号接收声音、消息接收声音等等)。音频输出单元1030包括扬声器、蜂鸣器以及受话器等。
输入单元1040用于接收音频或视频信号。输入单元1040可以包括图形处理器(Graphics Processing Unit,GPU)1041和麦克风1042,图形处理器1041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元1060上。经图形处理器1041处理后的图像帧可以存储在存储器1090(或其它存储介质)中 或者经由射频单元1010或网络模块1020进行发送。麦克风1042可以接收声音,并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元1010发送到移动通信网络侧设备的格式输出。
终端100还包括至少一种传感器1050,比如光传感器、运动传感器以及其他传感器。具体地,光传感器包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板1061的亮度,接近传感器可在终端100移动到耳边时,关闭显示面板1061和/或背光。作为运动传感器的一种,加速计传感器可检测各个方向上(一般为三轴)加速度的大小,静止时可检测出重力的大小及方向,可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;传感器1050还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等,在此不再赘述。
显示单元1060用于显示由用户输入的信息或提供给用户的信息。显示单元1060可包括显示面板1061,可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板1061。
用户输入单元1070可用于接收输入的数字或字符信息,以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地,用户输入单元1070包括触控面板1071以及其他输入设备1072。触控面板1071,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1071上或在触控面板1071附近的操作)。触控面板1071可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器1011,接收处理器1011发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1071。除了触控面板1071,用户输入单元1070还可以包括其他输入设备1072。具体地,其他输入设备1072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
进一步的,触控面板1071可覆盖在显示面板1061上,当触控面板1071检 测到在其上或附近的触摸操作后,传送给处理器1011以确定触摸事件的类型,随后处理器1011根据触摸事件的类型在显示面板1061上提供相应的视觉输出。虽然在图10中,触控面板1071与显示面板1061是作为两个独立的部件来实现终端的输入和输出功能,但是在某些实施例中,可以将触控面板1071与显示面板1061集成而实现终端的输入和输出功能,具体此处不做限定。
接口单元1080为外部装置与终端100连接的接口。例如,外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元1080可以用于接收来自外部装置的输入(例如,数据信息、电力等等)并且将接收到的输入传输到终端100内的一个或多个元件或者可以用于在终端100和外部装置之间传输数据。
存储器1090可用于存储软件程序以及各种数据。存储器1090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应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器1090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、或其他易失性固态存储器件。
处理器1011是终端的控制中心,利用各种接口和线路连接整个终端的各个部分,通过运行或执行存储在存储器1090内的软件程序和/或模块,以及调用存储在存储器1090内的数据,执行终端的各种功能和处理数据,从而对终端进行整体监控。处理器1011可包括一个或多个处理单元;优选的,处理器1011可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器1011中。
终端100还可以包括给各个部件供电的电源1012(比如电池),优选的,电源1012可以通过电源管理系统与处理器1011逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外,终端100包括一些未示出的功能模块,在此不再赘述。
优选的,本发明实施例还提供一种终端,包括处理器1011,存储器1090,存储在存储器1090上并可在所述处理器1011上运行的计算机程序,该计算机 程序被处理器1011执行时实现应用于终端侧的资源选择方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本发明实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现应用于终端侧的资源选择方法实施例的各个过程,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,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
如图11所示,本发明实施例还提供一种资源选择方法,应用于网络侧设备,包括:
步骤1101,发送部分检测机制中的检测窗口的配置信息给终端。
进一步地,该检测窗口的配置信息,包括以下至少一项:
检测窗口的长度配置参数;
检测窗口的位置配置参数。
可选地,该检测窗口的长度配置参数,包括以下至少一项:
检测窗口的长度;
检测窗口的长度的最小值;
检测窗口的长度范围。
可选地,所述检测窗口的位置配置参数包括:检测窗口的开始时刻、检测窗口的结束时刻和检测窗口的位置中的至少一项;
其中,所述检测窗口的开始时刻,包括以下一项:
检测窗口的开始时刻为终端触发资源选择或重选前的第一时间间隔所对应的时刻;
检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻;
所述检测窗口的结束时刻,包括:
检测窗口的结束时刻为终端触发资源选择或重选前的第三时间间隔所对应的时刻;
所述检测窗口的位置,包括以下一项:
检测窗口的位置由资源选择窗口的位置确定;
检测窗口的位置由终端已选资源确定。
进一步地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的开始时刻包括以下至少一项:
检测窗口的开始时刻为资源选择窗口前的第四时间间隔所对应的时刻;
检测窗口的开始时刻为资源选择窗口的开始时刻;
检测窗口的开始时刻为可选的资源选择窗口的开始时刻;
检测窗口的开始时刻为资源选择窗口前的第五时间间隔所对应的时刻和可选的资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻;
检测窗口的开始时刻为资源选择窗口前的第六时间间隔所对应的时刻和资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻。
进一步地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的结束时刻包括以下至少一项:
检测窗口的结束时刻为资源选择窗口的结束时刻;
检测窗口的结束时刻为资源选择窗口的结束时刻前的第七时间间隔所对应的时刻;
检测窗口的结束时刻为终端选择的传输资源的前第八时间间隔所对应的时刻。
进一步地,若检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第九时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十时间间隔所对应的时刻。
进一步地,所述检测窗口的位置由终端已选资源确定,包括以下至少一项:
检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻;
检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间。
进一步地,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第十四时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十五时间间隔所对应的时刻。
可选地,所述检测窗口的长度配置参数的获取方式包括:
检测窗口的长度由资源选择窗口的长度确定。
可选地,所述检测窗口的位置配置参数的获取方式包括:
检测窗口由资源选择窗口的位置以及高层参数指示确定;
检测窗口由第一周期确定。
具体地,所述第一周期,包括以下至少一项:
为终端配置的周期;
为资源池配置的周期;
终端待传输数据的周期。
具体地,高层参数指示的检测窗口的位置配置信息为k比特,k的比特长度的取值与以下至少一项相关:
终端待传输数据的周期值;
第一资源池中配置的周期值;
第一资源池是否使能周期预留;
其中,k为整数。
可选地,若第一资源池使能周期预留,则k的比特长度的取值由终端待传输数据的周期值、配置的周期值或第一资源池中配置的周期值确定。
具体地,k=ceil(T_sensingwindow对应的时隙数除以第一周期的取值);
其中,ceil(*)表示向上取整函数,T_sensingwindow为第一检测窗口的长度。
具体地,若终端所在的资源池中存在至少两个周期值时,每个周期值对应一个k比特信息,则:
高层配置多个k比特的指示;或者,
高层配置一个指示信息,其中,所述指示信息大小为多个k的比特长度中的最大值。
可选地,所述第一周期包括至少一个周期值,所述至少一个周期值对应以下至少一项:
无线资源控制RRC配置的至少一个周期值;
旁链路控制信息SCI指示的至少一个周期值;
下行控制信息DCI指示的至少一个周期值。
可选地,本发明实施例的方法,还包括:
发送部分检测机制中的资源选择窗口的配置信息;
所述资源选择窗口的配置信息包括以下至少一项:
资源选择窗口的长度配置参数;
资源选择窗口的位置配置参数。
具体地,所述资源选择窗口的长度配置参数,包括以下一项:
资源选择窗口的长度;
资源选择窗口的长度的最小值;
资源选择窗口的长度范围;
资源选择窗口的长度的比值。
进一步地,所述资源选择窗口的长度的比值为:终端选择的资源选择窗口的长度在终端可选的资源选择窗口长度中所占的比例。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的开始时刻包括以下至少一项:
资源选择窗口的开始时刻至少从触发资源选择后的第十四时间间隔所对应的时刻开始;
资源选择窗口的开始时刻大于或等于从触发资源选择后的第十五时间间隔所对应的时刻;
资源选择窗口的开始时刻从n+T1开始;
其中,n为资源选择触发时刻,T1为协议定义的资源选择的最小时间。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的结束时刻包括以下至少一项:
资源选择窗口的结束时刻在小于数据包的时延预算PDB的范围内;
资源选择窗口的结束时刻在触发资源选择后第一预设时间范围内。
需要说明的是,上述实施例中所有关于网络侧设备的描述均适用于该资源选择方法的实施例中,也能达到与之相同的技术效果,在此不再赘述。
如图12所示,本发明实施例还提供一种网络侧设备1200,包括:
第一发送模块1201,用于发送部分检测机制中的检测窗口的配置信息给终端。
进一步地,该检测窗口的配置信息,包括以下至少一项:
检测窗口的长度配置参数;
检测窗口的位置配置参数。
可选地,该检测窗口的长度配置参数,包括以下至少一项:
检测窗口的长度;
检测窗口的长度的最小值;
检测窗口的长度范围。
可选地,所述检测窗口的位置配置参数包括:检测窗口的开始时刻、检测窗口的结束时刻和检测窗口的位置中的至少一项;
其中,所述检测窗口的开始时刻,包括以下一项:
检测窗口的开始时刻为终端触发资源选择或重选前的第一时间间隔所对应的时刻;
检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻;
所述检测窗口的结束时刻,包括:
检测窗口的结束时刻为终端触发资源选择或重选前的第三时间间隔所对应的时刻;
所述检测窗口的位置,包括以下一项:
检测窗口的位置由资源选择窗口的位置确定;
检测窗口的位置由终端已选资源确定。
进一步地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的开始时刻包括以下至少一项:
检测窗口的开始时刻为资源选择窗口前的第四时间间隔所对应的时刻;
检测窗口的开始时刻为资源选择窗口的开始时刻;
检测窗口的开始时刻为可选的资源选择窗口的开始时刻;
检测窗口的开始时刻为资源选择窗口前的第五时间间隔所对应的时刻和可选的资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻;
检测窗口的开始时刻为资源选择窗口前的第六时间间隔所对应的时刻和资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻。
进一步地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的结束时刻包括以下至少一项:
检测窗口的结束时刻为资源选择窗口的结束时刻;
检测窗口的结束时刻为资源选择窗口的结束时刻前的第七时间间隔所对应的时刻;
检测窗口的结束时刻为终端选择的传输资源的前第八时间间隔所对应的时刻。
进一步地,若检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第九时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十时间间隔所对应的时刻。
进一步地,所述检测窗口的位置由终端已选资源确定,包括以下至少一项:
检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻;
检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间。
进一步地,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第十四时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十五时间间隔所对应的时刻。
可选地,所述检测窗口的长度配置参数的获取方式包括:
检测窗口的长度由资源选择窗口的长度确定。
可选地,所述检测窗口的位置配置参数的获取方式包括:
检测窗口由资源选择窗口的位置以及高层参数指示确定;
检测窗口由第一周期确定。
具体地,所述第一周期,包括以下至少一项:
为终端配置的周期;
为资源池配置的周期;
终端待传输数据的周期。
具体地,高层参数指示的检测窗口的位置配置信息为k比特,k的比特长度的取值与以下至少一项相关:
终端待传输数据的周期值;
第一资源池中配置的周期值;
第一资源池是否使能周期预留;
其中,k为整数。
可选地,若第一资源池使能周期预留,则k的比特长度的取值由终端待传 输数据的周期值、配置的周期值或第一资源池中配置的周期值确定。
具体地,k=ceil(T_sensingwindow对应的时隙数除以第一周期的取值);
其中,ceil(*)表示向上取整函数,T_sensingwindow为第一检测窗口的长度。
具体地,若终端所在的资源池中存在至少两个周期值时,每个周期值对应一个k比特信息,则:
高层配置多个k比特的指示;或者,
高层配置一个指示信息,其中,所述指示信息大小为多个k的比特长度中的最大值。
可选地,所述第一周期包括至少一个周期值,所述至少一个周期值对应以下至少一项:
无线资源控制RRC配置的至少一个周期值;
旁链路控制信息SCI指示的至少一个周期值;
下行控制信息DCI指示的至少一个周期值。
可选地,本发明实施例的网络侧设备,还包括:
第二发送模块,用于发送部分检测机制中的资源选择窗口的配置信息;
所述资源选择窗口的配置信息包括以下至少一项:
资源选择窗口的长度配置参数;
资源选择窗口的位置配置参数。
具体地,所述资源选择窗口的长度配置参数,包括以下一项:
资源选择窗口的长度;
资源选择窗口的长度的最小值;
资源选择窗口的长度范围;
资源选择窗口的长度的比值。
进一步地,所述资源选择窗口的长度的比值为:终端选择的资源选择窗口的长度在终端可选的资源选择窗口长度中所占的比例。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的开始时刻包括以下至少一项:
资源选择窗口的开始时刻至少从触发资源选择后的第十四时间间隔所对应的时刻开始;
资源选择窗口的开始时刻大于或等于从触发资源选择后的第十五时间间隔 所对应的时刻;
资源选择窗口的开始时刻从n+T1开始;
其中,n为资源选择触发时刻,T1为协议定义的资源选择的最小时间。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的结束时刻包括以下至少一项:
资源选择窗口的结束时刻在小于数据包的时延预算PDB的范围内;
资源选择窗口的结束时刻在触发资源选择后第一预设时间范围内。
本发明实施例还提供一种网络侧设备,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网络侧设备的资源选择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。
本发明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网络侧设备的资源选择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,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
图13是本发明一实施例的网络侧设备的结构图,能够实现上述的资源选择方法的细节,并达到相同的效果。如图13所示,网络侧设备1300包括:处理器1301、收发机1302、存储器1303和总线接口,其中:
处理器1301,用于读取存储器1303中的程序,执行下列过程:
通过收发机1302发送部分检测机制中的检测窗口的配置信息给终端。
在图13中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1301代表的一个或多个处理器和存储器1303代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1302可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
进一步地,该检测窗口的配置信息,包括以下至少一项:
检测窗口的长度配置参数;
检测窗口的位置配置参数。
可选地,该检测窗口的长度配置参数,包括以下至少一项:
检测窗口的长度;
检测窗口的长度的最小值;
检测窗口的长度范围。
可选地,所述检测窗口的位置配置参数包括:检测窗口的开始时刻、检测窗口的结束时刻和检测窗口的位置中的至少一项;
其中,所述检测窗口的开始时刻,包括以下一项:
检测窗口的开始时刻为终端触发资源选择或重选前的第一时间间隔所对应的时刻;
检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻;
所述检测窗口的结束时刻,包括:
检测窗口的结束时刻为终端触发资源选择或重选前的第三时间间隔所对应的时刻;
所述检测窗口的位置,包括以下一项:
检测窗口的位置由资源选择窗口的位置确定;
检测窗口的位置由终端已选资源确定。
进一步地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的开始时刻包括以下至少一项:
检测窗口的开始时刻为资源选择窗口前的第四时间间隔所对应的时刻;
检测窗口的开始时刻为资源选择窗口的开始时刻;
检测窗口的开始时刻为可选的资源选择窗口的开始时刻;
检测窗口的开始时刻为资源选择窗口前的第五时间间隔所对应的时刻和可选的资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻;
检测窗口的开始时刻为资源选择窗口前的第六时间间隔所对应的时刻和资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻。
进一步地,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的结束时刻包括以下至少一项:
检测窗口的结束时刻为资源选择窗口的结束时刻;
检测窗口的结束时刻为资源选择窗口的结束时刻前的第七时间间隔所对应的时刻;
检测窗口的结束时刻为终端选择的传输资源的前第八时间间隔所对应的时刻。
进一步地,若检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第九时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十时间间隔所对应的时刻。
进一步地,所述检测窗口的位置由终端已选资源确定,包括以下至少一项:
检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻;
检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间。
进一步地,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,则检测窗口的结束时刻为:
终端选择的传输资源的前第十四时间间隔所对应的时刻;或者,
资源选择窗口结束时刻的前第十五时间间隔所对应的时刻。
可选地,所述检测窗口的长度配置参数的获取方式包括:
检测窗口的长度由资源选择窗口的长度确定。
可选地,所述检测窗口的位置配置参数的获取方式包括:
检测窗口由资源选择窗口的位置以及高层参数指示确定;
检测窗口由第一周期确定。
具体地,所述第一周期,包括以下至少一项:
为终端配置的周期;
为资源池配置的周期;
终端待传输数据的周期。
具体地,高层参数指示的检测窗口的位置配置信息为k比特,k的比特长度的取值与以下至少一项相关:
终端待传输数据的周期值;
第一资源池中配置的周期值;
第一资源池是否使能周期预留;
其中,k为整数。
可选地,若第一资源池使能周期预留,则k的比特长度的取值由终端待传输数据的周期值、配置的周期值或第一资源池中配置的周期值确定。
具体地,k=ceil(T_sensingwindow对应的时隙数除以第一周期的取值);
其中,ceil(*)表示向上取整函数,T_sensingwindow为第一检测窗口的长度。
具体地,若终端所在的资源池中存在至少两个周期值时,每个周期值对应一个k比特信息,则:
高层配置多个k比特的指示;或者,
高层配置一个指示信息,其中,所述指示信息大小为多个k的比特长度中的最大值。
可选地,所述第一周期包括至少一个周期值,所述至少一个周期值对应以下至少一项:
无线资源控制RRC配置的至少一个周期值;
旁链路控制信息SCI指示的至少一个周期值;
下行控制信息DCI指示的至少一个周期值。
可选地,处理器1301,用于读取存储器1303中的程序,还执行下列过程:
通过收发机1302发送部分检测机制中的资源选择窗口的配置信息;
所述资源选择窗口的配置信息包括以下至少一项:
资源选择窗口的长度配置参数;
资源选择窗口的位置配置参数。
具体地,所述资源选择窗口的长度配置参数,包括以下一项:
资源选择窗口的长度;
资源选择窗口的长度的最小值;
资源选择窗口的长度范围;
资源选择窗口的长度的比值。
进一步地,所述资源选择窗口的长度的比值为:终端选择的资源选择窗口的长度在终端可选的资源选择窗口长度中所占的比例。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的开始时刻包括以下至少一项:
资源选择窗口的开始时刻至少从触发资源选择后的第十四时间间隔所对应 的时刻开始;
资源选择窗口的开始时刻大于或等于从触发资源选择后的第十五时间间隔所对应的时刻;
资源选择窗口的开始时刻从n+T1开始;
其中,n为资源选择触发时刻,T1为协议定义的资源选择的最小时间。
具体地,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的结束时刻包括以下至少一项:
资源选择窗口的结束时刻在小于数据包的时延预算PDB的范围内;
资源选择窗口的结束时刻在触发资源选择后第一预设时间范围内。
其中,网络侧设备可以是全球移动通讯(Global System of Mobile communication,GSM)或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者未来5G网络中的基站等,在此并不限定。
需要说明的是,应理解以上网络设备和终端的各个模块的划分仅仅是一种逻辑功能的划分,实际实现时可以全部或部分集成到一个物理实体上,也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现;也可以全部以硬件的形式实现;还可以部分模块通过处理元件调用软件的形式实现,部分模块通过硬件的形式实现。例如,确定模块可以为单独设立的处理元件,也可以集成在上述装置的某一个芯片中实现,此外,也可以以程序代码的形式存储于上述装置的存储器中,由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起,也可以独立实现。这里所述的处理元件可以是一种集成电路,具有信号的处理能力。在实现过程中,上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如,各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个特定集成电路(Application Specific Integrated Circuit,ASIC),或,一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array, FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(Central Processing Unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上系统(system-on-a-chip,SOC)的形式实现。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例,例如除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B和/或C,表示包含单独A,单独B,单独C,以及A和B都存在,B和C都存在,A和C都存在,以及A、B和C都存在的7种情况。类似地,本说明书以及权利要求中使用“A和B中的至少一个”应理解为“单独A,单独B,或A和B都存在”。
以上所述的是本发明的优选实施方式,应当指出对于本技术领域的普通人员来说,在不脱离本发明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发明的保护范围内。

Claims (68)

  1. 一种资源选择方法,应用于终端,包括:
    获取部分检测机制中的检测窗口的配置信息;
    在所述配置信息指示的检测窗口中进行检测,得到检测结果;
    根据所述检测结果,获取可选资源集合。
  2. 根据权利要求1所述的资源选择方法,其中,所述检测窗口的配置信息,包括以下至少一项:
    检测窗口的长度配置参数;
    检测窗口的位置配置参数。
  3. 根据权利要求2所述的资源选择方法,其中,所述检测窗口的长度配置参数,包括以下至少一项:
    检测窗口的长度;
    检测窗口的长度的最小值;
    检测窗口的长度范围。
  4. 根据权利要求2所述的资源选择方法,其中,所述检测窗口的长度配置参数为,以下至少一项:
    协议预定义的参数;
    无线资源控制RRC配置的参数;
    媒体接入控制控制单元MAC CE指示的参数;
    下行控制信息DCI指示的参数;
    旁链路控制信息SCI指示的参数;
    根据资源选择窗口的开始时刻和/或结束时刻确定的参数;
    检测窗口的长度配置参数由资源选择窗口的长度确定。
  5. 根据权利要求2所述的资源选择方法,其中,所述检测窗口的位置配置参数包括:检测窗口的开始时刻、检测窗口的结束时刻和检测窗口的位置中的至少一项;
    其中,所述检测窗口的开始时刻,包括以下一项:
    检测窗口的开始时刻为终端触发资源选择或重选前的第一时间间隔所对应的时刻;
    检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻;
    所述检测窗口的结束时刻,包括:
    检测窗口的结束时刻为终端触发资源选择或重选前的第三时间间隔所对应的时刻;
    所述检测窗口的位置,包括以下一项:
    检测窗口的位置由资源选择窗口的位置确定;
    检测窗口的位置由终端已选资源确定。
  6. 根据权利要求5所述的资源选择方法,其中,所述第一时间间隔和/或第三时间间隔为协议预定义、预配置或配置的值。
  7. 根据权利要求5所述的资源选择方法,其中,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的开始时刻包括以下至少一项:
    检测窗口的开始时刻为资源选择窗口前的第四时间间隔所对应的时刻;
    检测窗口的开始时刻为资源选择窗口的开始时刻;
    检测窗口的开始时刻为可选的资源选择窗口的开始时刻;
    检测窗口的开始时刻为资源选择窗口前的第五时间间隔所对应的时刻和可选的资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻;
    检测窗口的开始时刻为资源选择窗口前的第六时间间隔所对应的时刻和资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻。
  8. 根据权利要求5所述的资源选择方法,其中,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的结束时刻包括以下至少一项:
    检测窗口的结束时刻为资源选择窗口的结束时刻;
    检测窗口的结束时刻为资源选择窗口的结束时刻前的第七时间间隔所对应的时刻;
    检测窗口的结束时刻为终端选择的传输资源的前第八时间间隔所对应的时刻。
  9. 根据权利要求5所述的资源选择方法,其中,若检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻,则检测窗口的结束时刻为:
    终端选择的传输资源的前第九时间间隔所对应的时刻;或者,
    资源选择窗口结束时刻的前第十时间间隔所对应的时刻。
  10. 根据权利要求5所述的资源选择方法,其中,所述检测窗口的位置由终端已选资源确定,包括以下至少一项:
    检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻;
    检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间。
  11. 根据权利要求10所述的资源选择方法,其中,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,若获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻。
  12. 根据权利要求10所述的资源选择方法,其中,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,则检测窗口的结束时刻为:
    终端选择的传输资源的前第十四时间间隔所对应的时刻;或者,
    资源选择窗口结束时刻的前第十五时间间隔所对应的时刻。
  13. 根据权利要求10所述的资源选择方法,其中,若检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间,且获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻。
  14. 根据权利要求10所述的资源选择方法,其中,若检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间,若获取得到的检测窗口的结束时刻在当前时刻之前,则获取的检测窗口失效。
  15. 根据权利要求2所述的资源选择方法,其中,所述检测窗口的位置配置参数的获取方式包括:
    检测窗口由资源选择窗口的位置以及高层参数指示确定;
    检测窗口由第一周期确定。
  16. 根据权利要求15所述的资源选择方法,其中,所述第一周期,包括以下至少一项:
    为终端配置的周期;
    为资源池配置的周期;
    终端待传输数据的周期。
  17. 根据权利要求15所述的资源选择方法,其中,高层参数指示的检测窗 口的位置配置信息为k比特,k的比特长度的取值与以下至少一项相关:
    终端待传输数据的周期值;
    第一资源池中配置的周期值;
    第一资源池是否使能周期预留;
    其中,k为整数。
  18. 根据权利要求17所述的资源选择方法,其中,若第一资源池使能周期预留,则k的比特长度的取值由终端待传输数据的周期值、配置的周期值或第一资源池中配置的周期值确定。
  19. 根据权利要求17所述的资源选择方法,其中,k=ceil(T_sensingwindow对应的时隙数除以第一周期的取值);
    其中,ceil(*)表示向上取整函数,T_sensingwindow为第一检测窗口的长度。
  20. 根据权利要求17所述的资源选择方法,其中,若终端所在的资源池中存在至少两个周期值时,每个周期值对应一个k比特信息,则:
    高层配置多个k比特的指示;或者,
    高层配置一个指示信息,其中,所述指示信息大小为多个k的比特长度中的最大值。
  21. 根据权利要求15所述的资源选择方法,其中,所述第一周期包括至少一个周期值,所述至少一个周期值对应以下至少一项:
    无线资源控制RRC配置的至少一个周期值;
    旁链路控制信息SCI指示的至少一个周期值;
    下行控制信息DCI指示的至少一个周期值。
  22. 根据权利要求15所述的资源选择方法,其中,终端检测所使用的第一周期的最小数目由协议预定义、预配置或配置。
  23. 根据权利要求1所述的资源选择方法,其中,在所述根据所述检测结果,获取可选资源集合之前,还包括:
    获取部分检测机制中的资源选择窗口的配置信息;
    所述资源选择窗口的配置信息包括以下至少一项:
    资源选择窗口的长度配置参数;
    资源选择窗口的位置配置参数。
  24. 根据权利要求23所述的资源选择方法,其中,所述资源选择窗口的长 度配置参数,包括以下一项:
    资源选择窗口的长度;
    资源选择窗口的长度的最小值;
    资源选择窗口的长度范围;
    资源选择窗口的长度的比值。
  25. 根据权利要求24所述的资源选择方法,其中,所述资源选择窗口的长度的比值为:终端选择的资源选择窗口的长度在终端可选的资源选择窗口长度中所占的比例。
  26. 根据权利要求23所述的资源选择方法,其中,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的开始时刻包括以下至少一项:
    资源选择窗口的开始时刻至少从触发资源选择后的第十四时间间隔所对应的时刻开始;
    资源选择窗口的开始时刻大于或等于从触发资源选择后的第十五时间间隔所对应的时刻;
    资源选择窗口的开始时刻从n+T1开始;
    其中,n为资源选择触发时刻,T1为协议定义的资源选择的最小时间。
  27. 根据权利要求23所述的资源选择方法,其中,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的结束时刻包括以下至少一项:
    资源选择窗口的结束时刻在小于数据包的时延预算PDB的范围内;
    资源选择窗口的结束时刻在触发资源选择后第一预设时间范围内。
  28. 根据权利要求1所述的资源选择方法,其中,在所述根据所述检测结果,获取可选资源集合之后,还包括:
    在部分检测机制中,若满足第一条件,则终端执行以下至少一项:
    触发资源选择窗口;
    若周期预留使能,终端将第一数据包对应的当前传输块的重传在下一个周期的可选资源中传输;
    丢弃所述第一数据包。
  29. 根据权利要求28所述的资源选择方法,其中,所述第一条件包括以下一项:
    终端在资源选择窗口中收到了第一数据包的非确认应答、且终端不存在预 留资源或终端不存在动态预留的资源;
    终端在资源选择窗口中收到了第一数据包的非连续发送DTX、且终端不存在预留资源或终端不存在动态预留的资源;
    终端在资源选择窗口中没有收到第一数据包的确认应答信息、且终端不存在预留资源或终端不存在动态预留的资源。
  30. 一种资源选择方法,应用于网络侧设备,包括:
    发送部分检测机制中的检测窗口的配置信息给终端。
  31. 根据权利要求30所述的资源选择方法,还包括:
    发送部分检测机制中的资源选择窗口的配置信息;
    所述资源选择窗口的配置信息包括以下至少一项:
    资源选择窗口的长度配置参数;
    资源选择窗口的位置配置参数。
  32. 一种终端,包括:
    第一获取模块,用于获取部分检测机制中的检测窗口的配置信息;
    第二获取模块,用于在所述配置信息指示的检测窗口中进行检测,得到检测结果;
    第三获取模块,用于根据所述检测结果,获取可选资源集合。
  33. 根据权利要求32所述的终端,其中,所述检测窗口的配置信息,包括以下至少一项:
    检测窗口的长度配置参数;
    检测窗口的位置配置参数。
  34. 根据权利要求33所述的终端,其中,所述检测窗口的长度配置参数,包括以下至少一项:
    检测窗口的长度;
    检测窗口的长度的最小值;
    检测窗口的长度范围。
  35. 根据权利要求33所述的终端,其中,所述检测窗口的长度配置为,以下至少一项:
    协议预定义的参数;
    无线资源控制RRC配置的参数;
    媒体接入控制控制单元MAC CE指示的参数;
    下行控制信息DCI指示的参数;
    旁链路控制信息SCI指示的参数;
    根据资源选择窗口的开始时刻和/或结束时刻确定的参数;
    检测窗口的长度配置参数由资源选择窗口的长度确定。
  36. 根据权利要求33所述的终端,其中,所述检测窗口的位置配置参数包括:检测窗口的开始时刻、检测窗口的结束时刻和检测窗口的位置中的至少一项;
    其中,所述检测窗口的开始时刻,包括以下一项:
    检测窗口的开始时刻为终端触发资源选择或重选前的第一时间间隔所对应的时刻;
    检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻;
    所述检测窗口的结束时刻,包括:
    检测窗口的结束时刻为终端触发资源选择或重选前的第三时间间隔所对应的时刻;
    所述检测窗口的位置,包括以下一项:
    检测窗口的位置由资源选择窗口的位置确定;
    检测窗口的位置由终端已选资源确定。
  37. 根据权利要求36所述的终端,其中,所述第一时间间隔和/或第三时间间隔为协议预定义、预配置或配置的值。
  38. 根据权利要求36所述的终端,其中,若检测窗口的位置由资源选择窗口的位置确定,则检测窗口的开始时刻包括以下至少一项:
    检测窗口的开始时刻为资源选择窗口前的第四时间间隔所对应的时刻;
    检测窗口的开始时刻为资源选择窗口的开始时刻;
    检测窗口的开始时刻为可选的资源选择窗口的开始时刻;
    检测窗口的开始时刻为资源选择窗口前的第五时间间隔所对应的时刻和可选的资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻;
    检测窗口的开始时刻为资源选择窗口前的第六时间间隔所对应的时刻和资源选择窗口的开始时刻中的时间较晚的一者所对应的时刻。
  39. 根据权利要求36所述的终端,其中,若检测窗口的位置由资源选择窗 口的位置确定,则检测窗口的结束时刻包括以下至少一项:
    检测窗口的结束时刻为资源选择窗口的结束时刻;
    检测窗口的结束时刻为资源选择窗口的结束时刻前的第七时间间隔所对应的时刻;
    检测窗口的结束时刻为终端选择的传输资源的前第八时间间隔所对应的时刻。
  40. 根据权利要求36所述的终端,其中,若检测窗口的开始时刻为终端触发资源选择或重选后的第二时间间隔所对应的时刻,则检测窗口的结束时刻为:
    终端选择的传输资源的前第九时间间隔所对应的时刻;或者,
    资源选择窗口结束时刻的前第十时间间隔所对应的时刻。
  41. 根据权利要求36所述的终端,其中,所述检测窗口的位置由终端已选资源确定,包括以下至少一项:
    检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻;
    检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间。
  42. 根据权利要求41所述的终端,其中,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,若获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻。
  43. 根据权利要求41所述的终端,其中,若检测窗口的开始时刻为已选资源的前第十一时间间隔所对应的时刻,则检测窗口的结束时刻为:
    终端选择的传输资源的前第十四时间间隔所对应的时刻;或者,
    资源选择窗口结束时刻的前第十五时间间隔所对应的时刻。
  44. 根据权利要求41所述的终端,其中,若检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间,且获取得到的检测窗口的开始时刻在当前时刻之前,则当前时刻为检测窗口的开始时刻。
  45. 根据权利要求41所述的终端,其中,若检测窗口的位置在已选资源的前第十二时间间隔所对应的时刻与前第十三时间间隔所对应的时刻之间,若获取得到的检测窗口的结束时刻在当前时刻之前,则获取的检测窗口失效。
  46. 根据权利要求33所述的终端,其中,所述检测窗口的位置配置参数的 获取方式包括:
    检测窗口由资源选择窗口的位置以及高层参数指示确定;
    检测窗口由第一周期确定。
  47. 根据权利要求46所述的终端,其中,所述第一周期,包括以下至少一项:
    为终端配置的周期;
    为资源池配置的周期;
    终端待传输数据的周期。
  48. 根据权利要求46所述的终端,其中,高层参数指示的检测窗口的位置配置信息为k比特,k的比特长度的取值与以下至少一项相关:
    终端待传输数据的周期值;
    第一资源池中配置的周期值;
    第一资源池是否使能周期预留;
    其中,k为整数。
  49. 根据权利要求48所述的终端,其中,若第一资源池使能周期预留,则k的比特长度的取值由终端待传输数据的周期值、配置的周期值或第一资源池中配置的周期值确定。
  50. 根据权利要求48所述的终端,其中,k=ceil(T_sensingwindow对应的时隙数除以第一周期的取值);
    其中,ceil(*)表示向上取整函数,T_sensingwindow为第一检测窗口的长度。
  51. 根据权利要求48所述的终端,其中,若终端所在的资源池中存在至少两个周期值时,每个周期值对应一个k比特信息,则:
    高层配置多个k比特的指示;或者,
    高层配置一个指示信息,其中,所述指示信息大小为多个k的比特长度中的最大值。
  52. 根据权利要求46所述的终端,其中,所述第一周期包括至少一个周期值,所述至少一个周期值对应以下至少一项:
    无线资源控制RRC配置的至少一个周期值;
    旁链路控制信息SCI指示的至少一个周期值;
    下行控制信息DCI指示的至少一个周期值。
  53. 根据权利要求46所述的终端,其中,终端检测所使用的第一周期的最小数目由协议预定义、预配置或配置。
  54. 根据权利要求32所述的终端,其中,在所述第三获取模块根据所述检测结果,获取可选资源集合之前,还包括:
    第四获取模块,用于获取部分检测机制中的资源选择窗口的配置信息;
    所述资源选择窗口的配置信息包括以下至少一项:
    资源选择窗口的长度配置参数;
    资源选择窗口的位置配置参数。
  55. 根据权利要求54所述的终端,其中,所述资源选择窗口的长度配置参数,包括以下一项:
    资源选择窗口的长度;
    资源选择窗口的长度的最小值;
    资源选择窗口的长度范围;
    资源选择窗口的长度的比值。
  56. 根据权利要求55所述的终端,其中,所述资源选择窗口的长度的比值为:终端选择的资源选择窗口的长度在终端可选的资源选择窗口长度中所占的比例。
  57. 根据权利要求54所述的终端,其中,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的开始时刻包括以下至少一项:
    资源选择窗口的开始时刻至少从触发资源选择后的第十四时间间隔所对应的时刻开始;
    资源选择窗口的开始时刻大于或等于从触发资源选择后的第十五时间间隔所对应的时刻;
    资源选择窗口的开始时刻从n+T1开始;
    其中,n为资源选择触发时刻,T1为协议定义的资源选择的最小时间。
  58. 根据权利要求54所述的终端,其中,所述配置信息包括资源选择窗口的位置配置参数时,所述资源选择窗口的结束时刻包括以下至少一项:
    资源选择窗口的结束时刻在小于数据包的时延预算PDB的范围内;
    资源选择窗口的结束时刻在触发资源选择后第一预设时间范围内。
  59. 根据权利要求32所述的终端,其中,在所述第三获取模块根据所述检 测结果,获取可选资源集合之后,还包括:
    执行模块,用于在部分检测机制中,若满足第一条件,则终端执行以下至少一项:
    触发资源选择窗口;
    若周期预留使能,终端将第一数据包对应的当前传输块的重传在下一个周期的可选资源中传输;
    丢弃所述第一数据包。
  60. 根据权利要求59所述的终端,其中,所述第一条件包括以下一项:
    终端在资源选择窗口中收到了第一数据包的非确认应答、且终端不存在预留资源或终端不存在动态预留的资源;
    终端在资源选择窗口中收到了第一数据包的非连续发送DTX、且终端不存在预留资源或终端不存在动态预留的资源;
    终端在资源选择窗口中没有收到第一数据包的确认应答信息、且终端不存在预留资源或终端不存在动态预留的资源。
  61. 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29中任一项所述的资源选择方法的步骤。
  62. 一种网络侧设备,包括:
    第一发送模块,用于发送部分检测机制中的检测窗口的配置信息给终端。
  63. 根据权利要求62所述的网络侧设备,其中,该检测窗口的配置信息,包括以下至少一项:
    检测窗口的长度配置参数;
    检测窗口的位置配置参数。
  64. 一种网络侧设备,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30或31所述的资源选择方法的步骤。
  65. 一种计算机可读存储介质,其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31中任一项所述的资源选择方法的步骤。
  66. 一种终端设备,所述终端设备被配置为用于执行如权利要求1至29中任一项所述的资源选择方法的步骤。
  67. 一种网络侧设备,所述网络侧设备被配置为用于执行如权利要求30或31所述的资源选择方法的步骤。
  68. 一种计算机程序产品,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至29中任一项所述的资源选择方法的步骤,或实现如权利要求30或31所述的资源选择方法的步骤。
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SPREADTRUM COMMUNICATIONS: "Discussion on resource sensing and selection for pedestrian UEs", 3GPP DRAFT; R1-1608911, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Lisbon, Portugal; 20161010 - 20161014, 30 September 2016 (2016-09-30), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051158363 *

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AU2021247741B2 (en) 2024-02-01
JP7480336B2 (ja) 2024-05-09
KR20220160678A (ko) 2022-12-06
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AU2021247741A1 (en) 2022-11-24
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