WO2020063311A1 - 资源选择方法及终端 - Google Patents

资源选择方法及终端 Download PDF

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Publication number
WO2020063311A1
WO2020063311A1 PCT/CN2019/104901 CN2019104901W WO2020063311A1 WO 2020063311 A1 WO2020063311 A1 WO 2020063311A1 CN 2019104901 W CN2019104901 W CN 2019104901W WO 2020063311 A1 WO2020063311 A1 WO 2020063311A1
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WIPO (PCT)
Prior art keywords
resource
transmission
resources
data packet
terminal
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Ceased
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PCT/CN2019/104901
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English (en)
French (fr)
Inventor
彭淑燕
纪子超
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of WO2020063311A1 publication Critical patent/WO2020063311A1/zh
Priority to US17/211,809 priority Critical patent/US11979857B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • Embodiments of the present disclosure relate to the field of wireless communication technologies, and in particular, to a resource selection method and a terminal.
  • the side link refers to a link between a terminal (UE) and the UE for direct communication without going through a network.
  • Long Term Evolution (LTE) sidelink includes device-to-device (D2D) and vehicle connected everything (V2X) communication.
  • New Air Interface (New Radio, NR) sidelink contains V2X communication.
  • Two types of resource allocation are supported in Sidelink: scheduling resource allocation mode and UE autonomous resource selection mode.
  • the base station configures resources for the sidelink; in the UE autonomous resource selection mode, the UE periodically reserves certain resources based on a period of detection results.
  • the main consideration is to support basic safety services, most of which are periodic fixed packet size services.
  • the minimum selectable resource reservation period of the UE is 20ms.
  • NR V2X in addition to periodic fixed-size packet services, there are also periodic variable-size packet services and aperiodic services, and some data packet delay requirements are shorter (for example, the minimum end-to-end delay is 3ms). Therefore, if the fixed period (20ms) reserved resources in LTE V2X are adopted, it is difficult to meet the requirements.
  • the embodiments of the present disclosure provide a resource selection method and terminal, which are used to solve the problem that it is difficult to meet the requirements in NR V2X using a reserved resource with fixed period.
  • an embodiment of the present disclosure provides a resource selection method, which is applied to a terminal and includes:
  • Target transmission resource of a data packet to be transmitted, wherein the target transmission resource is selected from one of the following:
  • an embodiment of the present disclosure provides a terminal, including:
  • a determining module configured to determine a target transmission resource of a data packet to be transmitted, wherein the target transmission resource is selected from one of the following:
  • an embodiment of the present disclosure provides a terminal including a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the computer program When the computer program is executed by the processor, Implement the steps of the resource selection method described above.
  • an embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of the foregoing resource selection method.
  • the transmission resource of the data packet to be transmitted when selecting the transmission resource of the data packet to be transmitted, according to the specific needs of the data packet to be transmitted, different methods can be selected to determine the target transmission resource, so that the resource allocation mechanism can meet the fixed-size packet service cycle
  • Variable-size packet services and non-periodic services reduce the delay of data packet transmission, ensure the reliability of data packet transmission, reduce the waste of reserved resources, and improve system resource utilization and spectrum efficiency.
  • FIG. 1 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a resource selection method according to Embodiment 1 of the present disclosure
  • FIG. 3 is a schematic diagram of a resource selection method according to Embodiment 2 of the present disclosure.
  • FIG. 4 is a schematic diagram of a resource selection method according to Embodiment 5 of the present disclosure.
  • FIG. 5 is a schematic diagram of a resource selection method according to Embodiment 6 of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as more preferred or advantageous over other embodiments or designs. Rather, the use of the words “exemplary” or “for example” is intended to present the relevant concept in a concrete manner.
  • FIG. 1 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure.
  • the resource selection method is applied to a terminal and includes:
  • Step 11 Determine a target transmission resource of a data packet to be transmitted, wherein the target transmission resource is selected from one of the following:
  • the start time of the second detection window is equal to or later than the arrival time of the data packet
  • variable-size packet services and non-periodic services reduce data packet transmission delays, ensure the reliability of data packet transmission, reduce the waste of reserved resources, and improve system resource utilization and spectrum efficiency.
  • the transmission resources include at least one of time domain resources, frequency domain resources, code domain resources, air domain resources, and power.
  • the time domain resources are, for example, slots, subframes, symbols, or frames.
  • the frequency domain resources are, for example, subchannels, physical resource blocks (PRBs), and subcarriers.
  • the code domain resource is, for example, a sequence.
  • the airspace resource is, for example, a port number.
  • the target transmission resource is one resource or multiple resources.
  • the target transmission resource may be one slot or multiple slots, for example, two slots.
  • the multiple resources are multiple continuous time domain resources, multiple non-continuous time domain resources, multiple continuous frequency domain resources, and multiple non-continuous frequency domains. Resources and / or multiple candidate patterns.
  • the so-called non-continuous time domain resource refers to that at least one of the multiple resources is discontinuous in time domain with other resources.
  • the so-called non-contiguous frequency-domain resources refer to that at least one of the multiple resources is discontinuous in the frequency domain from other resources.
  • the end time of the first detection window is earlier than the arrival time of the data packet, and the first detection window may be determined in one of the following ways:
  • the second detection window may be determined in one of the following ways:
  • QoS Quality of Service
  • a start time of the second detection window may be equal to or later than an arrival time of the data packet, and an end time may be a time when an available resource is detected, or the second detection window It can also be a fixed detection time. During the detection time, if many available resources are detected, one or more are selected from the available resources.
  • the periodically reserved transmission resources are located in a first resource selection window, and the first resource selection window is determined by one of the following methods:
  • the transmission resource obtained according to the detection result in the second detection window is located in a second resource selection window, and the second resource selection window is determined by one of the following methods:
  • the second resource selection window is located after the second detection window, and the end time of the second resource selection window is earlier than the arrival time of the data packet and the delay of the data packet. Therefore, the data packet can be transmitted within a required delay range, thereby ensuring the reliability of data packet transmission.
  • the randomly selected transmission resource is located in a third resource selection window, and the third resource selection window is determined by one of the following methods:
  • the end time of the third resource selection window is earlier than the sum of the arrival time of the data packet and the delay of the data packet, so that the data packet can be transmitted within the required delay range To ensure the reliability of data packet transmission.
  • the third resource selection window may be the same as or different from the second resource selection window.
  • a method for determining a target transmission resource of a data packet to be transmitted is described in detail below.
  • the resource selection method may include:
  • Step 21 Detect a designated transmission resource within the first detection window to obtain a detection result; and periodically reserve a first number of transmission resources according to the detection result.
  • detection is performed in the first detection window, that is, each detection transmission time interval (Transmission Time Interval, TTI) detection control information (for example, Scheduling Assignment, SA) or Sidelink Control Information (SCI)) and perform measurements. That is, the detection result includes a detection result and a measurement result of the control information.
  • TTI Transmission Time Interval
  • SA Scheduling Assignment
  • SCI Sidelink Control Information
  • control information may include at least one of time domain information, frequency domain information, resource reservation indication, resource occupation indication, and priority.
  • the resource reservation indication and the resource occupation indication may include at least one of the following: a time domain resource indication, a frequency domain resource indication, a resource number, and the like.
  • the resource reservation indication is used to indicate the reserved resources (or the number of resources). For example, if four slots are reserved consecutively and the resource reservation indication is 2, it means that two slots are occupied continuously.
  • the measurement includes at least one of interference measurement, radio resource management (RRM) measurement, and channel occupancy measurement.
  • the measurement result includes at least one of an interference measurement result, an RRM measurement result, and a channel occupancy measurement result.
  • the content of the measurement is, for example, Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Received Signal Strength Indication (RSSI), and / or energy.
  • the terminal can exclude resources according to the following methods:
  • a first number of transmission resources are randomly selected from a specified percentage of resources (such as 20%) with the least interference for periodic resource reservation.
  • the first number is determined by one of the following methods:
  • TBS Transport Block Size
  • service type a service type
  • QoS parameter a QoS parameter
  • subcarrier interval a transmission rate
  • MCS Modulation and Coding Scheme
  • the number of reserved transmission resources is not a fixed size and can be changed according to demand, so that the resource allocation mechanism can meet the periodic fixed-size packet service, the periodic variable-size packet service, and the aperiodic service.
  • the designated transmission resource may be all available transmission resources or part of the available transmission resources, and the designated transmission resource is determined in one of the following ways:
  • a priority a priority
  • a QoS parameter a QoS parameter
  • a subcarrier interval SCS
  • a service type unicast, multicast, broadcast
  • a measurement result such as a channel busy ratio
  • the specified transmission resource corresponding to the broadcast service can be configured as resource pool 1.
  • Step 22 Determine whether the reserved transmission resource meets the performance of the data packet. If it is satisfied, go to step 23; if not, go to step 24a or 24b.
  • the performance includes at least one of delay, QoS parameters, transmission block size, modulation and coding scheme, number of layers, and transmission rate.
  • the reserved transmission resources satisfying the performance of the data packet satisfy at least one of the following conditions:
  • the minimum time interval with the data packet is less than a specified threshold
  • the specified threshold is defined according to a delay and / or a QoS parameter of a data packet.
  • Step 23 If it is satisfied, select the reserved transmission resource as the target transmission resource of the data packet to be transmitted. That is, the target transmission resource is selected from the transmission resources in 1) above.
  • Step 24a if it is not satisfied, detect the designated transmission resource in the second detection window to obtain a detection result; and determine whether there is an available transmission resource according to the detection result;
  • Step 24b if not, randomly select a transmission resource as the target transmission resource. That is, the target transmission resource is selected from the transmission resources in 3) above.
  • Step 24c if not, select available transmission resources as the target transmission resources according to the historical detection result during the detection by the first detection window.
  • the detection includes detecting control information of other terminals in the second detection window, that is, the detection result includes a detection result of control information.
  • the detection may also include measurement.
  • the control information includes at least one of time domain information, frequency domain information, resource reservation indication, resource occupation indication, and priority.
  • the available transmission resources include at least one of the following:
  • the measurement result is obtained through detection by the terminal within the second detection window, and is at least one of an interference measurement result, a radio resource management (RRM) measurement result, and a channel occupancy measurement result.
  • RRM radio resource management
  • Step 24a1 if it exists, select an available transmission resource as the target transmission resource. That is, the target transmission resource is selected from the transmission resources in 2) above.
  • Step 24a2 if it does not exist, randomly select a transmission resource as the target transmission resource. That is, the target transmission resource is selected from the transmission resources in 3) above. Or, if it does not exist, reselection of transmission resources is performed.
  • the transmission resource reserved periodically from the above 1) is preferentially selected as the target transmission resource. If the transmission resource reserved periodically from 1) does not satisfy the performance of the data packet, then from 2) or 3 The transmission resource is selected as the target transmission resource, so that the resource allocation mechanism meets the performance of the data packet, ensures the reliability of the data packet transmission, and reduces the waste of reserved resources, and improves the system's resource utilization and spectrum efficiency.
  • the resource selection method may include:
  • Step 31 detecting the designated transmission resource in the second detection window to obtain a detection result
  • the detection includes detecting control information of other terminals in the first detection window, that is, the detection result includes a detection result of the control information.
  • the detection may also include measurement.
  • the control information includes at least one of time domain information, frequency domain information, resource reservation indication, resource occupation indication, and priority.
  • the designated transmission resource is a transmission resource corresponding to a data packet, and the designated transmission resource is determined by one of the following methods:
  • Step 32 Determine whether there are available transmission resources according to the detection result.
  • the available transmission resources include at least one of the following:
  • Step 33a if it exists, select an available transmission resource as the target transmission resource. That is, the target transmission resource is selected from the transmission resources in 2) above.
  • Step 33b if it does not exist, randomly select a transmission resource as the target transmission resource. That is, the target transmission resource is selected from the transmission resources in 3) above. Or, if it does not exist, reselection of transmission resources is performed.
  • the transmission resources are selected from the above 2) as the target transmission resources. If there are no transmission resources available in 2), then the transmission resources are randomly selected according to the above 3), so that the resource allocation mechanism meets the performance of the data packet and ensures The reliability of data packet transmission, and reduce the waste of reserved resources, improve the system's resource utilization and spectrum efficiency.
  • the resource selection method may include:
  • Step 41 Randomly select a transmission resource as the target transmission resource.
  • the transmission resources are randomly selected directly according to the above 3).
  • the resource selection method in the above embodiments of the present disclosure is applicable to the NR sidelink system, and of course, it is also applicable to other communication systems and other scenarios.
  • NR V2X services can be divided into three types: periodic fixed packets, periodic variable packets, and aperiodic data packets, as shown in the following table:
  • variable-size packet services and non-periodic services reduce data packet transmission delays, ensure the reliability of data packet transmission, reduce the waste of reserved resources, and improve system resource utilization and spectrum efficiency.
  • Embodiment 1 of the present disclosure is a diagrammatic representation of Embodiment 1 of the present disclosure:
  • a resource selection method includes the following steps:
  • the base station configures the priority and / or service type (unicast, multicast, broadcast) of each transmission resource (for example, a resource pool).
  • the base station configures the first detection window length window1 and the second detection window length window2 for UE1, the resource reservation period is 50ms, and the number of resource reservations is 2 slots.
  • UE1 When UE1 has a broadcast service to send, UE1 performs detection in pool1 (that is, the specified transmission resource in the above embodiment).
  • UE1 detects the demodulated SA (SA of other UEs) in the slot and performs energy detection in window1 to obtain the interference situation in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.) .
  • UE1 excludes the reserved resources indicated by the SA; calculates the average RSSI measurement result of every 2 slots, and selects the transmission interference with the least interference 20% (not limited to 20% transmission resources, which can be based on the configuration or a certain (Fixed value is determined), from which 2 consecutive slots are randomly selected for resource reservation.
  • UE1 reserves the resources of 2 slots every 50ms in the selection window.
  • Embodiment 2 of the present disclosure is a diagrammatic representation of Embodiment 2 of the present disclosure:
  • the resource selection method according to the embodiment of the present disclosure includes the following steps:
  • the base station configures the priority and / or service type of each transmission resource (for example, a resource pool).
  • the base station configures the first detection window length window1 and the second detection window length window2 for UE1, the resource reservation period is 50ms, and the number of resource reservations is 2slots.
  • UE1 When UE1 has a broadcast service to send, UE1 performs detection in pool1.
  • UE1 In window1, UE1 detects demodulated SAs (SAs of other UEs) in the slot and performs energy detection to obtain the interference situation in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement). )
  • SAs of other UEs demodulated SAs
  • energy detection to obtain the interference situation in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement).
  • UE1 excludes the reserved resources indicated by the SA; calculates the average RSSI measurement results for every 2 slots, and selects the 20% resource with the least interference (not limited to 20% of the transmission resources, which can be based on the configuration situation or a fixed The value is determined), and two consecutive slots are randomly selected for resource reservation.
  • UE1 reserves the resources of 2 slots every 50ms in the selection window.
  • Embodiment 3 of the present disclosure is a diagrammatic representation of Embodiment 3 of the present disclosure.
  • the base station configures the priority and / or service type of each transmission resource (for example, a resource pool).
  • the base station configures the first detection window length window1 and the second detection window length window2 for UE1, the resource reservation period is 50ms, and the number of resource reservations is 2slots.
  • UE1 When UE1 has a broadcast service to send, UE1 performs detection in pool1.
  • UE1 In window1, UE1 detects demodulated SAs (SAs of other UEs) in the slot and performs energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.). )
  • SAs of other UEs demodulated SAs
  • energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.).
  • UE1 excludes the reserved resources indicated by the SA; calculates the average RSSI measurement results for every 2 slots, and selects the 20% resource with the least interference (not limited to 20% of the transmission resources, which can be based on the configuration situation or a fixed The value is determined), and two consecutive slots are randomly selected for resource reservation.
  • UE1 reserves the resources of 2 slots every 50ms in the selection window.
  • the delay requirement of 30ms is greater than 20ms.
  • the UE randomly selects a slot (n ⁇ 40) to send a data packet.
  • UE1 carries resource indication information in the SA to indicate the use of candidate resource 1 and transmits it in two consecutive slots.
  • Embodiment 4 of the present disclosure is a diagrammatic representation of Embodiment 4 of the present disclosure.
  • the base station configures the priority and / or service type of each transmission resource (for example, a resource pool).
  • the base station configures the first detection window length window1 and the second detection window length window2 for UE1, the resource reservation period is 50ms, and the number of resource reservations is 2 slots.
  • UE1 When UE1 has a broadcast service to send, UE1 performs detection in pool1.
  • UE1 In window1, UE1 detects demodulated SAs (SAs of other UEs) in the slot and performs energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.). )
  • SAs of other UEs demodulated SAs
  • energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.).
  • UE1 excludes the reserved resources indicated by the SA; calculates the average RSSI measurement results for every 2 slots, and selects the 20% resource with the least interference (not limited to 20% of the transmission resources, which can be based on the configuration or a fixed The value is determined), and two consecutive slots are randomly selected for resource reservation.
  • UE1 reserves the resources of 2 slots every 50ms in the selection window.
  • Embodiment 5 of the present disclosure is a diagrammatic representation of Embodiment 5 of the present disclosure.
  • a resource selection method includes the following steps:
  • the base station configures the priority and / or service type of each transmission resource (for example, a resource pool).
  • the base station configures the first detection window length window1 and the second detection window length window2 for UE1, the resource reservation period is 50ms, and the number of resource reservations is 2 slots.
  • UE1 When UE1 has a broadcast service (priority is 1) to be sent, UE1 performs detection in pool1.
  • UE1 In window1, UE1 detects demodulated SAs (SAs of other UEs) in the slot and performs energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.). )
  • SAs of other UEs demodulated SAs
  • energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.).
  • UE1 excludes the reserved resources indicated by the SA; calculates the average RSSI measurement results for every 2 slots, and selects the 20% resource with the least interference (not limited to 20% of the transmission resources, which can be based on the configuration situation or a fixed The value is determined), and two consecutive slots are randomly selected for resource reservation.
  • UE1 reserves the resources of 2 slots every 50ms in the selection window.
  • Embodiment 6 of the present disclosure is a diagrammatic representation of Embodiment 6 of the present disclosure.
  • the base station configures the priority and / or service type of each transmission resource (for example, a resource pool).
  • the broadcast service corresponds to pool # 1.
  • Embodiment 7 of the present disclosure is a diagrammatic representation of Embodiment 7 of the present disclosure.
  • a resource selection method includes the following steps:
  • the base station configures the priority and / or service type of each transmission resource (for example, a resource pool).
  • the base station configures the first detection window length window1 for UE1, the resource reservation period is 50ms, and the number of resource reservations is 2 slots.
  • UE1 When UE1 has a broadcast service (priority is 1) to be sent, UE1 performs detection in pool1.
  • UE1 In window1, UE1 detects demodulated SAs (SAs of other UEs) in the slot and performs energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.). )
  • SAs of other UEs demodulated SAs
  • energy detection to obtain interference conditions in the resource (not limited to energy detection, but also RSRP measurement or channel occupancy measurement, etc.).
  • UE1 excludes the reserved resources indicated by the SA; calculates the average RSSI measurement result of each 2 slots, selects the resource with the least interference 20%, and randomly selects 2 consecutive slots for resource reservation.
  • UE1 reserves the resources of 2 slots every 50ms in the selection window.
  • the priority of the reserved resource may be obtained based on the historical information (including the priority of the reserved resource) during the detection of window1. If the priority is low, it is used as a candidate resource of UE1.
  • FIG. 6, is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • the terminal 60 includes:
  • the determining module 61 determines a target transmission resource of a data packet to be transmitted, where the target transmission resource is selected from one of the following:
  • the terminal further includes:
  • a first detection module is configured to detect a specified transmission resource within the first detection window to obtain a detection result; and according to the detection result, reserve a first number of transmission resources periodically.
  • the first number is determined in one of the following ways:
  • a transmission block size a service type, a quality of service QoS parameter, a subcarrier interval, a transmission rate, a modulation and coding scheme, and a number of layers;
  • the determining module is configured to determine whether the reserved transmission resource meets the performance of the data packet; if it is satisfied, select the reserved transmission resource as the target transmission resource.
  • the performance includes at least one of delay, QoS parameters, transmission block size, modulation and coding scheme, number of layers, and transmission rate.
  • the reserved transmission resources satisfying the performance of the data packet satisfy at least one of the following conditions:
  • the minimum time interval with the data packet is less than a specified threshold
  • the determining module is configured to detect the specified transmission resource in the second detection window to obtain a detection result if it is not satisfied, and determine whether there is an available transmission resource according to the detection result; if it exists , Selecting an available transmission resource as the target transmission resource.
  • the determining module is configured to randomly select a transmission resource as the target transmission resource if it does not exist.
  • the determining module is configured to randomly select a transmission resource as the target transmission resource if it is not satisfied.
  • the determining module is configured to detect a designated transmission resource in the second detection window to obtain a detection result; determine whether there is an available transmission resource according to the detection result; and if it exists, select an available transmission resource The transmission resource is used as the target transmission resource.
  • the determining module is configured to randomly select a transmission resource as the target transmission resource if it does not exist.
  • the second detection window is determined in one of the following ways:
  • the available transmission resources include at least one of the following:
  • the determining module is configured to randomly select a transmission resource as the target transmission resource.
  • the detection result includes a detection result and / or a measurement result of the control information.
  • control information includes at least one of time domain information, frequency domain information, resource reservation indication, resource occupation indication, and priority.
  • the measurement result includes at least one of an interference measurement result, a radio resource management RRM measurement result, and a channel occupancy measurement result.
  • the periodically reserved transmission resources are located in a first resource selection window, and the first resource selection window is determined in one of the following ways:
  • the transmission resource obtained according to the detection result in the second detection window is located in a second resource selection window, and the second resource selection window is determined in one of the following ways:
  • the randomly selected transmission resource is located in a third resource selection window, and the third resource selection window is determined in one of the following ways:
  • the transmission resources include at least one of time domain resources, frequency domain resources, code domain resources, air domain resources, and power.
  • the target transmission resource is one resource or multiple resources
  • the multiple resources are multiple continuous time domain resources, multiple non-continuous time domain resources, multiple continuous frequency domain resources, and multiple non-continuous frequency domains. Resources and / or multiple candidate styles.
  • the designated transmission resource is a transmission resource corresponding to the data packet, and the designated transmission resource is determined in one of the following ways:
  • FIG. 7 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • the terminal 70 includes, but is not limited to, a radio frequency unit 71, a network module 72, an audio output unit 73, an input unit 74, a sensor 75, and a display unit. 76.
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or some components may be combined, or different component arrangements.
  • the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like.
  • the processor 710 is configured to determine a target transmission resource of a data packet to be transmitted, where the target transmission resource is selected from one of the following:
  • the start time of the second detection window is equal to or later than the arrival time of the data packet
  • the target transmission resource when selecting the transmission resource of the data packet to be transmitted, can be selected in different ways according to the specific needs of the data packet to be transmitted, so that the resource allocation mechanism can simultaneously meet the fixed-size packet service cycle.
  • Variable-size packet services and non-periodic services can reduce the delay of data packet transmission, ensure the reliability of data packet transmission, reduce the waste of reserved resources, and improve system resource utilization and spectrum efficiency.
  • the radio frequency unit 71 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 710; The uplink data is sent to the base station.
  • the radio frequency unit 71 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 71 can also communicate with a network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 72, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 73 may convert audio data received by the radio frequency unit 71 or the network module 72 or stored in the memory 79 into audio signals and output them as sound. Moreover, the audio output unit 73 may also provide audio output (for example, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal 70.
  • the audio output unit 73 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 74 is used to receive audio or video signals.
  • the input unit 74 may include a graphics processing unit (Graphics Processing Unit, GPU) 741 and a microphone 742.
  • the graphics processor 741 pairs 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 frames may be displayed on the display unit 76.
  • the image frames processed by the graphics processor 741 may be stored in the memory 79 (or other storage medium) or transmitted via the radio frequency unit 71 or the network module 72.
  • the microphone 742 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 71 in the case of a telephone call mode and output.
  • the terminal 70 further includes at least one sensor 75, 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 761 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 761 and / or when the terminal 70 is moved to the ear. Or backlight.
  • an accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes).
  • sensor 75 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.
  • the display unit 76 is used to display information input by the user or information provided to the user.
  • the display unit 76 may include a display panel 761, and the display panel 761 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 77 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal.
  • the user input unit 77 includes a touch panel 771 and other input devices 772.
  • the touch panel 771 also known as a touch screen, can collect user's touch operations on or near it (such as the user using a finger, stylus, etc. any suitable object or accessory on the touch panel 771 or near the touch panel 771 operating).
  • the touch panel 771 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it To the processor 710, receive the command sent by the processor 710 and execute it.
  • various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 771.
  • the user input unit 77 may further include other input devices 772.
  • other input devices 772 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
  • the touch panel 771 may be overlaid on the display panel 761.
  • the touch panel 771 detects a touch operation on or near the touch panel 771, the touch panel 771 is transmitted to the processor 710 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 761.
  • the touch panel 771 and the display panel 761 are implemented as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 771 and the display panel 761 may be integrated and Implement the input and output functions of the terminal, which are not limited here.
  • the interface unit 78 is an interface through which an external device is connected to the terminal 70.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, and audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 78 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 70 or may be used between the terminal 70 and an external device transfer data.
  • the memory 79 may be used to store software programs and various data.
  • the memory 79 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 79 may include a high-speed random access memory, and may further 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 710 is a control center of the terminal, and uses various interfaces and lines to connect various parts of the entire terminal.
  • the processor 710 runs or executes software programs and / or modules stored in the memory 79 and calls data stored in the memory 79 to execute Various functions and processing data of the terminal, so as to monitor the terminal as a whole.
  • the processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 710.
  • the terminal 70 may further include a power source 711 (such as a battery) for supplying power to various components.
  • a power source 711 such as a battery
  • the power source 711 may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • the terminal 70 includes some functional modules that are not shown, and details are not described herein again.
  • FIG. 8 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • the terminal 80 includes: a processor 81 and a memory 82.
  • the terminal 80 further includes a computer program stored on the memory 82 and executable on the processor 81. When the computer program is executed by the processor 81, the following steps are implemented:
  • Target transmission resource of a data packet to be transmitted, wherein the target transmission resource is selected from one of the following:
  • the processor 81 is responsible for managing the bus architecture and general processing, and the memory 82 may store data used by the processor 81 when performing operations.
  • the determining a target transmission resource of a data packet to be transmitted previously also includes:
  • a first number of transmission resources are reserved periodically.
  • the first number is determined in one of the following ways:
  • a transmission block size a service type, a quality of service QoS parameter, a subcarrier interval, a transmission rate, a modulation and coding scheme, and a number of layers;
  • the determining a target transmission resource of a data packet to be transmitted includes:
  • the reserved transmission resource is selected as the target transmission resource.
  • the performance includes at least one of delay, QoS parameters, transmission block size, modulation and coding scheme, number of layers, and transmission rate.
  • the reserved transmission resources satisfying the performance of the data packet satisfy at least one of the following conditions:
  • the minimum time interval with the data packet is less than a specified threshold
  • the following steps may be implemented: the determining whether the reserved transmission resource meets the performance of the data packet, and then further includes:
  • the following steps may be implemented: determining whether there is an available transmission resource in the resource selection window, and then further including:
  • a transmission resource is randomly selected as the target transmission resource.
  • the following steps may be implemented: the determining whether the reserved transmission resource satisfies the performance of the data packet, and further includes:
  • the determining a target transmission resource of the data packet includes:
  • the following steps may also be implemented: the determining whether there are available transmission resources, and then further including:
  • a transmission resource is randomly selected as the target transmission resource.
  • the second detection window is determined in one of the following ways:
  • the available transmission resources include at least one of the following:
  • the determining a target transmission resource of the data packet includes:
  • the detection result includes a detection result and / or a measurement result of the control information.
  • control information includes at least one of time domain information, frequency domain information, resource reservation indication, resource occupation indication, and priority.
  • the measurement result includes at least one of an interference measurement result, a radio resource management RRM measurement result, and a channel occupancy measurement result.
  • the periodically reserved transmission resources are located in a first resource selection window, and the first resource selection window is determined in one of the following ways:
  • the transmission resource obtained according to the detection result in the second detection window is located in a second resource selection window, and the second resource selection window is determined in one of the following ways:
  • the randomly selected transmission resource is located in a third resource selection window, and the third resource selection window is determined in one of the following ways:
  • the transmission resources include at least one of time domain resources, frequency domain resources, code domain resources, air domain resources, and power.
  • the target transmission resource is one resource or multiple resources
  • the multiple resources are multiple continuous time domain resources, multiple non-continuous time domain resources, multiple continuous frequency domain resources, and multiple non-continuous frequency domains. Resources and / or multiple candidate styles.
  • the designated transmission resource is a transmission resource corresponding to the data packet, and the designated transmission resource is determined in one of the following ways:
  • An embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored.
  • a computer program is stored.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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Abstract

本公开实施例提供一种资源选择方法及终端，该资源选择方法包括：确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：根据第一检测窗口内的检测结果得到的周期性预留的传输资源；根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；以及，随机选择的传输资源。

Description

资源选择方法及终端
相关申请的交叉引用
本申请主张在2018年9月28日在中国提交的中国专利申请No.201811141569.4的优先权，其全部内容通过引用包含于此。
技术领域
本公开实施例涉及无线通信技术领域，尤其涉及一种资源选择方法及终端。
背景技术
副链路(Sidelink，也称为旁链路或边链路)是指终端(UE)和UE之间不通过网络，进行直连通信的链路。长期演进(Long Term Evolution，LTE)sidelink包括设备到设备(D2D)和车联万物(V2X)通信。新空口(New Radio，NR)sidelink包含V2X通信。在Sidelink中支持两种资源分配：调度资源分配模式和UE自主资源选择模式。在LTE sidelink中，调度资源分配模式下，基站为sidelink配置资源；UE自主资源选择模式下，UE会基于一段时间的检测结果，周期性的预留一定的资源。
在LTE V2X中，主要考虑的是支持基本安全(basic safety)业务，大多为周期性的固定包大小的业务。在LTE V2X的自主资源选择模式下，UE最小可选择的资源预留周期为20ms。
在NR V2X中，除了周期固定大小包业务，还存在周期可变大小包业务，以及非周期业务，且部分数据包时延需求更短(如最小端到端的时延为3ms)。因此如采用LTE V2X中的固定周期(20ms)的预留资源已经难以满足要求。
发明内容
本公开实施例提供一种资源选择方法及终端，用于解决NR V2X中采用固定周期的预留资源难以满足要求的问题。
为了解决上述技术问题，本公开是这样实现的：
第一方面，本公开实施例提供了一种资源选择方法，应用于终端，包括：
确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：
根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
随机选择的传输资源。
第二方面，本公开实施例提供了一种终端，包括：
确定模块，用于确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：
根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
随机选择的传输资源。
第三方面，本公开实施例提供了一种终端，包括处理器、存储器及存储在所述存储器上并可在所述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资源选择方法的步骤。
第四方面，本公开实施例提供了一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述资源选择方法的步骤。
在本公开实施例中，在进行待传输数据包的传输资源选择时，可以根据待传输数据包的具体需求，选取不同的方式确定目标传输资源，使得资源分配机制满足周期固定大小包业务，周期可变大小包业务，以及非周期业务，降低数据包传输时延，保证数据包传输的可靠性，并且减小预留资源浪费的比例，提升系统的资源利用率和频谱效率。
附图说明
通过阅读下文可选的实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出可选的实施方式的目 的，而并不认为是对本公开的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为本公开实施例的资源选择方法的流程示意图；
图2为本公开实施例一的资源选择方法的示意图；
图3为本公开实施例二的资源选择方法的示意图；
图4为本公开实施例五的资源选择方法的示意图；
图5为本公开实施例六的资源选择方法的示意图；
图6为本公开一实施例的终端的结构示意图；
图7为本公开另一实施例的终端的结构示意图；
图8为本公开又一实施例的终端的结构示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，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，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
请参考图1，图1为本公开一实施例的资源选择方法的流程示意图，该资源选择方法应用于终端，包括：
步骤11：确定待传输的数据包的目标传输资源，其中，所述目标传输资 源选自以下之一：
1)根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
2)根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
3)随机选择的传输资源。
本公开实施例中，在进行待传输数据包的传输资源选择时，可以根据待传输数据包的具体需求，选取不同的方式确定目标传输资源，使得资源分配机制满足周期固定大小包业务，周期可变大小包业务，以及非周期业务，降低数据包传输时延，保证数据包传输的可靠性，并且减小预留资源浪费的比例，提升系统的资源利用率和频谱效率。
本公开实施例中，所述传输资源包括时域资源、频域资源、码域资源、空域资源和功率中的至少一种。时域资源例如为：时隙(slot)，子帧(subframe)，符号(symbol)或帧(frame)等。频域资源例如为：子信道(subchannel)，物理资源块(Physical Resource Block，PRB)，子载波(subcarrier)等。码域资源例如为序列等。空域资源例如为端口号等。
本公开实施例中，所述目标传输资源为一个资源或多个资源。例如，当所述传输资源为时域资源时，所述目标传输资源可以为1个时隙(slot)，也可以为多个slot，例如2个slot。
当所述目标传输资源为多个资源时，所述多个资源为多个连续的时域资源、多个非连续的时域资源、多个连续的频域资源、多个非连续的频域资源和/或多个候选样式(pattern)。所谓非连续的时域资源，是指多个资源中，至少有一个资源与其他资源在时域上不连续。同样的，所谓非连续的频域资源，是指多个资源中，至少有一个资源与其他资源在频域上不连续。
本公开实施例中，所述第一检测窗口(sensing window)的结束时间早于所述数据包的到达时间，所述第一检测窗口可以由以下方式之一确定：
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
本公开实施例中，所述第二检测窗口可以由以下方式之一确定：
由所述终端根据所述数据包的时延和服务质量(Quality of Service，QoS)参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
在本公开的一些实施例中，所述第二检测窗口的开始时间可以等于或晚于所述数据包的到达时间，结束时间可以为检测到可用资源的时间，或者，所述第二检测窗口也可以是一固定的检测时间，在检测时间内，如果检测到了很多可用的资源，从可用的资源中选取一个或多个。
本公开实施例中，所述周期性预留的传输资源位于第一资源选择窗口(selection window)内，所述第一资源选择窗口由以下方式之一确定：
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
本公开实施例中，所述根据第二检测窗口内的检测结果得到的传输资源位于第二资源选择窗口内，所述第二资源选择窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
本公开实施例中，所述第二资源选择窗口位于所述第二检测窗口之后，所述第二资源选择窗口的结束时间早于所述数据包的到达时间与所述数据包的时延之和，从而使得所述数据包可以在要求的时延范围内被传输，保证数据包传输的可靠性。
本公开实施例中，所述随机选择的传输资源位于第三资源选择窗口内，所述第三资源选择窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述第三资源选择窗口结束时间早于所述数据包的到达时间与所述数据包的时延之和，从而可以使得所述数据包可以在要求的时延范围内被传输，保证数据包传输的可靠性。
所述第三资源选择窗口可以与第二资源选择窗口相同，也可以不同。
下面对确定待传输的数据包的目标传输资源的方法进行详细说明。
在本公开的一些实施例中，所述资源选择方法可以包括：
步骤21：在所述第一检测窗口内对指定传输资源进行检测，得到检测结果；根据所述检测结果，周期性预留第一数目个传输资源。
本公开实施例中，具体地，在第一检测窗口内进行检测，即在第一检测窗口内的每个检测传输时间间隔(Transmission Time Interval，TTI)检测控制信息(例如调度分配(Scheduling Assignment，SA)或副链路控制信息(Sidelink Control Information，SCI))及进行测量。即，检测结果包括：控制信息的检测结果和测量结果。
本公开实施例中，所述控制信息中可以包含：时域信息、频域信息、资源预留指示、资源占用指示和优先级中的至少之一。其中，资源预留指示和资源占用指示可以包含以下至少之一：时域资源指示，频域资源指示和资源编号等。资源预留指示用于指示预留的资源(或资源数)，如：连续预留4个slots，资源预留指示为2，则表示连续占用两个slot。
所述测量包括：干扰测量、无线资源管理(Radio Resource Management，RRM)测量和信道占用测量中的至少一种。所述测量结果包括：干扰测量结果、RRM测量结果和信道占用测量结果中的至少一种。测量的内容例如为：参考信号接收功率(Reference Signal Receiving Power，RSRP)、参考信号接收质量(Reference Signal Receiving Quality，RSRQ)、接收的信号强度指示(Received Signal Strength Indication，RSSI)和/或能量。
根据检测结果，终端可以根据以下方式进行资源排除：
a、排除终端发送数据的TTI的资源；
b、排除解得的控制信息中携带的预留资源；
c、根据干扰测量结果，排除干扰大的资源；
在第一资源选择窗内，从干扰最小的指定比例(如20％)的资源中随机选择一个第一数目个传输资源进行周期的资源预留。
本公开实施例中，所述第一数目由以下方式之一确定：
由所述终端根据传输块大小(Transport Block Size，TBS)、业务类型、QoS参数、子载波间隔、传输速率、调制编码方案(Modulation and Coding Scheme，MCS)和层数中的至少一个参数确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可以看出，预留的传输资源的数目并非是固定大小的，可以根据需求改变，从而使得资源分配机制满足周期固定大小包业务，周期可变大小包业务，以及非周期业务。
本公开实施例中，所述指定传输资源可以为全部可用的传输资源或部分可用的传输资源，所述指定传输资源由以下方式之一确定：
由所述终端根据优先级、QoS参数、子载波间隔(SCS)、业务类型(单播，组播，广播)、测量结果(如信道繁忙比率等)中的至少之一确定；
由所述终端和基站配置；
由所述终端和基站预配置；
由协议预定义。
举例来说，可以配置广播业务对应的指定传输资源为资源池1。
步骤22：判断预留的传输资源是否满足所述数据包的性能，若满足，执行步骤23，若不满足，执行步骤24a或24b。
本公开实施例中，所述性能包括：时延、QoS参数、传输块大小、调制编码方案、层数和传输速率中的至少一种。
本公开实施例中，满足所述数据包的性能的预留的传输资源满足以下条件至少之一：
与所述数据包的最小时间间隔小于指定门限；
大于所述数据包所需资源。
所述指定门限根据数据包的时延和/或QoS参数等定义。
步骤23：若满足，选择预留的传输资源作为待传输的数据包的目标传输资源。即，目标传输资源选自上述1)中的传输资源。
步骤24a：若不满足，在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；根据所述检测结果，判断是否存在可用的传输资源；
或者
步骤24b：若不满足，随机选择传输资源作为所述目标传输资源。即，目标传输资源选自上述3)中的传输资源。
或者
步骤24c：若不满足，根据第一检测窗口检测时的历史检测结果，选择可用的传输资源作为所述目标传输资源。上述步骤24a中，所述检测包括对第二检测窗口内的其他终端的控制信息进行检测，即，检测结果包括：控制信息的检测结果。所述检测也可以包括测量。
所述控制信息中包含：时域信息、频域信息、资源预留指示、资源占用指示和优先级中的至少之一。
本公开实施例中，所述可用的传输资源包括以下至少之一：
未被所述终端和其他终端预留的传输资源；
测量结果小于预设阈值的传输资源；
其他终端的优先级低于所述数据包的优先级的预留传输资源；
其他终端的优先级高于所述数据包的优先级的预留传输资源中未被占用的传输资源；
其他终端的预留传输资源中未被占用的传输资源。
所述测量结果通过终端在第二检测窗口内的检测得到，为干扰测量结果、无线资源管理(RRM)测量结果和信道占用测量结果中的至少一种。
步骤24a1：若存在，选择可用的传输资源作为所述目标传输资源。即，目标传输资源选自上述2)中的传输资源。
步骤24a2：若不存在，随机选择传输资源作为所述目标传输资源。即，目标传输资源选自上述3)中的传输资源。或者，若不存在，进行传输资源的重选。
本公开实施例中，优先从上述1)中选择周期性预留的传输资源作为目 标传输资源，如若1)中的周期性预留的传输资源不满足数据包的性能，则从2)或3)中选择传输资源作为目标传输资源，使得资源分配机制满足数据包的性能，保证数据包传输的可靠性，并且减小预留资源浪费的比例，提升系统的资源利用率和频谱效率。
在本公开的另外一些实施例中，所述资源选择方法可以包括：
步骤31：在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；
步骤31中，所述检测包括对第一检测窗口内的其他终端的控制信息进行检测，即，检测结果包括：控制信息的检测结果。所述检测也可以包括测量。
所述控制信息中包含：时域信息、频域信息、资源预留指示、资源占用指示和优先级中的至少之一。
本公开实施例中，所述指定传输资源为数据包对应的传输资源，所述指定传输资源由以下方式之一确定：
由所述终端根据优先级、QoS参数、子载波间隔、业务类型、测量结果中的至少之一确定；
由所述终端和基站配置；
由所述终端和基站预配置；
由协议预定义。
步骤32：根据所述检测结果，判断是否存在可用的传输资源。
本公开实施例中，所述可用的传输资源包括以下至少之一：
未被所述终端和其他终端预留的传输资源；
测量结果小于预设阈值的传输资源；
其他终端的优先级低于所述数据包的优先级的预留传输资源；
其他终端的优先级高于所述数据包的优先级的预留传输资源中未被占用的传输资源；
其他终端的预留传输资源中未被占用的传输资源。
步骤33a：若存在，选择可用的传输资源作为所述目标传输资源。即，目标传输资源选自上述2)中的传输资源。
步骤33b：若不存在，随机选择传输资源作为所述目标传输资源。即， 目标传输资源选自上述3)中的传输资源。或者，若不存在，进行传输资源的重选。
本公开实施例中，优先从上述2)选择传输资源作为目标传输资源，如若2)中没有可用的传输资源，再根据上述3)随机选择传输资源，使得资源分配机制满足数据包的性能，保证数据包传输的可靠性，并且减小预留资源浪费的比例，提升系统的资源利用率和频谱效率。
在本公开的另外一些实施例中，所述资源选择方法可以包括：
步骤41：随机选择传输资源作为所述目标传输资源。
本公开实施例中，直接根据上述3)随机选择传输资源。
本公开的上述实施例中的资源选择方法适用于NR sidelink系统，当然也适用于其他通信系统以及其他场景。
本公开的上述实施例中的资源选择方法可用于NR V2X业务，NR V2X业务可以分为三类：周期的固定包，周期的可变包，以及非周期的数据包，如下表所示：
Figure PCTCN2019104901-appb-000001
本公开实施例中，在进行待传输数据包的传输资源选择时，可以根据待传输数据包的具体需求，选取不同的方式确定目标传输资源，使得资源分配机制满足周期固定大小包业务，周期可变大小包业务，以及非周期业务，降低数据包传输时延，保证数据包传输的可靠性，并且减小预留资源浪费的比例，提升系统的资源利用率和频谱效率。
下面结合具体实施例，对本公开的资源选择方法进行说明。
本公开实施例一：
请参考图2，本公开实施例的资源选择方法包括以下步骤：
1.基站配置每个传输资源(例如为资源池(pool))的优先级和/或业务类型(单播，组播，广播)。
a)假设广播业务对应pool#1。
2.基站为UE1配置第一检测窗长window1，第二检测窗长window2，资源预留周期为50ms，资源预留数目为2slots。
3.当UE1有广播业务待发送时，UE1在pool1(即上述实施例中的指定传输资源)中进行检测。
a)UE1在window1内，检测slot内解调SA(其他UE的SA)并进行能量检测，得到资源内的干扰情况(不限于能量检测，还可以是RSRP的测量或信道占用率的测量等)。
b)UE1排除SA指示的预留资源；计算每2个slots的平均RSSI的测量结果，选出干扰最小的20％的传输资源(不限于20％的传输资源，可以根据配置情况，或某个固定值确定)，从中随机选择连续的2个slots进行资源预留。
c)UE1在选择窗内，每50ms预留2个slots的资源。
d)若数据包在t＝40ms时刻到达，数据包的时延要求为20ms。
i.UE1计算数据包和最近的可用候选资源(t＝50ms)的时间间隔为50-40＝10ms。10ms小于20ms的时延要求，UE1在t＝50ms时发送数据包。
本公开实施例二：
请参考图3，本公开实施例的资源选择方法包括以下步骤：
1.基站配置每个传输资源(例如为资源池(pool))的优先级和/或业务类型。
a)假设广播业务对应pool#1。
2.基站为UE1配置第一检测窗长window1，第二检测窗长window2，资源预留周期为50ms，资源预留数目为2slots.
3.当UE1有广播业务待发送时，UE1在pool1中进行检测。
a)UE1在window1内，检测slot内解调SA(其他UE的SA)并进行能量 检测，得到资源内的干扰情况(不限于能量检测，还可以是RSRP的测量或信道占用率的测量等。)
b)UE1排除SA指示的预留资源；计算每2个slots的平均RSSI的测量结果，选出干扰最小的20％的资源(不限于20％的传输资源，可以根据配置情况，或某个固定值确定)，从中随机选择连续的2个slots进行资源预留。
c)UE1在选择窗内，每50ms预留2个slots的资源。
d)若数据包在t＝20ms时刻到达，数据包的时延要求为20ms。
i.UE1计算数据包和最近的可用候选资源(t＝50ms)的时间间隔为50-20＝30ms。30ms大于20ms的时延要求。
ii.UE1从t＝20ms时开始在window2内，每个检测TTI内进行检测。
1.若在t＝25ms时，解得某个SA(UE2的SA)指示其预留资源为t＝30ms起连续4个slots的资源(在15kHz下，即，预留资源为t＝30,31,32,33的四个slot的资源)，但UE2只在t＝30一个slot上发送。UE1在t＝26ms至t＝30ms之间发送SA，指示数据在t＝31,32的slot上发送。
本公开实施例三：
本公开实施例的资源选择方法包括以下步骤：
1.基站配置每个传输资源(例如为资源池(pool))的优先级和/或业务类型。
a)假设广播业务对应pool#1。
2.基站为UE1配置第一检测窗长window1，第二检测窗长window2，资源预留周期为50ms，资源预留数目为2slots.
3.当UE1有广播业务待发送时，UE1在pool1中进行检测。
a)UE1在window1内，检测slot内解调SA(其他UE的SA)并进行能量检测，得到资源内的干扰情况(不限于能量检测，还可以是RSRP的测量或信道占用率的测量等。)
b)UE1排除SA指示的预留资源；计算每2个slots的平均RSSI的测量结果，选出干扰最小的20％的资源(不限于20％的传输资源，可以根据配置情况，或某个固定值确定)，从中随机选择连续的2个slots进行资源预留。
c)UE1在选择窗内，每50ms预留2个slots的资源。
d)若数据包在t＝20ms时刻到达，数据包的时延要求为20ms。
i.UE1计算数据包和最近的可用候选资源(t＝50ms)的时间间隔为50-20＝30ms.30ms大于20ms的时延要求。
1.UE1从t＝20ms时开始在window2内，每个检测TTI内进行检测。
2.若在window2内解SA得到无空余资源可用，则UE随机选择一个slot n(n<40)发送数据包。
3.UE1在SA中携带资源指示信息指示使用候选资源1，在连续的2个slots内传输。
本公开实施例四：
本公开实施例的资源选择方法包括以下步骤：
1.基站配置每个传输资源(例如为资源池(pool))的优先级和/或业务类型。
a)假设广播业务对应pool#1
2.基站为UE1配置第一检测窗长window1，第二检测窗长window2，资源预留周期为50ms，资源预留数目为2slots。
3.当UE1有广播业务待发送时，UE1在pool1中进行检测。
a)UE1在window1内，检测slot内解调SA(其他UE的SA)并进行能量检测，得到资源内的干扰情况(不限于能量检测，还可以是RSRP的测量或信道占用率的测量等。)
b)UE1排除SA指示的预留资源；计算每2个slots的平均RSSI的测量结果，选出干扰最小的20％的资源(不限于20％的传输资源，可以根据配置情况，或某个固定值确定)，从中随机选择连续的2个slots进行资源预留。
c)UE1在选择窗内，每50ms预留2个slots的资源。
d)若数据包在t＝40ms时刻到达，数据包的时延要求为20ms。
i.UE1计算数据包和最近的可用候选资源(t＝50ms)的时间间隔为50-40＝10ms。10ms小于20ms的时延要求。
ii.UE1计算传输当前传输块(TB)需要4slot资源，t＝50ms有2个预留slots，资源不够。
iii.UE1从t＝40ms时开始在window2内，每个检测TTI内进行检测。
1.若在t＝40ms时，解得某个SA(UE3的SA)指示其预留资源为t＝42ms起连续4个slots的资源(在15kHz下，即，预留资源为t＝42,43,44,45的四个slot的资源)，但UE2只在t＝42一个slot上发送。UE1在t＝41ms发送SA，指示数据在t＝43,44,45的slot上发送。若UE1检测到下一个可用slot为t＝48的slot，则剩余数据可在t＝48的slot上发送。
本公开实施例五：
请参考图4，本公开实施例的资源选择方法包括以下步骤：
1.基站配置每个传输资源(例如为资源池(pool))的优先级和/或业务类型。
a)假设广播业务对应pool#1。
2.基站为UE1配置第一检测窗长window1，第二检测窗长window2，资源预留周期为50ms，资源预留数目为2slots。
3.当UE1有广播业务(优先级为1)待发送时，UE1在pool1中进行检测。
a)UE1在window1内，检测slot内解调SA(其他UE的SA)并进行能量检测，得到资源内的干扰情况(不限于能量检测，还可以是RSRP的测量或信道占用率的测量等。)
b)UE1排除SA指示的预留资源；计算每2个slots的平均RSSI的测量结果，选出干扰最小的20％的资源(不限于20％的传输资源，可以根据配置情况，或某个固定值确定)，从中随机选择连续的2个slots进行资源预留。
c)UE1在选择窗内，每50ms预留2个slots的资源。
d)若数据包在t＝20ms时刻到达，数据包的时延要求为20ms。
i.UE1计算数据包和最近的可用候选资源(t＝50ms)的时间间隔为50-20＝30ms。30ms大于20ms的时延要求。
ii.UE1从t＝20ms时开始在window2内，每个检测TTI内进行检测。
1.在20ms到40ms的时间窗内，UE1在检测资源上解SA(UE2的SA)，可得业务优先级(为4)，其预留资源为t＝30ms起连续4个slots的资源(在15kHz下，即，预留资源为t＝30,31,32,33的四个slot的资源)等信息。
a)UE2的业务优先级低于UE1待传数据包的优先级，则UE2的预留资 源均可作为UE1的候选资源(即t＝30,31,32,33作为UE1的候选资源)。
本公开实施例六：
本公开实施例的资源选择方法包括以下步骤：
1.基站配置每个传输资源(例如为资源池(pool))的优先级和/或业务类型。
a)广播业务对应pool#1。
2.当UE1有广播业务(优先级为1)待发送时：
a)在时延范围内无可用资源，UE1从t＝20ms时开始在pool#1，window2内，每个检测TTI内进行检测。
i.在20ms到40ms的时间窗内，UE1在检测资源上解SA(UE2的SA)，可得业务优先级(为4)，其预留资源为t＝30ms起连续4个slots的资源(在15kHz下，即，预留资源为t＝30,31,32,33的四个slot的资源)等信息。
1.UE2的业务优先级低于UE1待传数据包的优先级，则UE2的预留资源均可作为UE1的候选资源(即t＝30,31,32,33作为UE1的候选资源)。
本公开实施例七：
请参考图5，本公开实施例的资源选择方法包括以下步骤：
1.基站配置每个传输资源(例如为资源池(pool))的优先级和/或业务类型。
a)假设广播业务对应pool#1。
2.基站为UE1配置第一检测窗长window1，资源预留周期为50ms，资源预留数目为2slots。
3.当UE1有广播业务(优先级为1)待发送时，UE1在pool1中进行检测。
a)UE1在window1内，检测slot内解调SA(其他UE的SA)并进行能量检测，得到资源内的干扰情况(不限于能量检测，还可以是RSRP的测量或信道占用率的测量等。)
b)UE1排除SA指示的预留资源；计算每2个slots的平均RSSI的测量结果，选出干扰最小的20％的资源，从中随机选择连续的2个slots进行资源预留。
c)UE1在选择窗内，每50ms预留2个slots的资源。
d)若数据包在t＝20ms时刻到达，数据包的时延要求为20ms。
i.UE1计算数据包和最近的可用候选资源(t＝50ms)的时间间隔为50-20＝30ms。30ms大于20ms的时延要求。
ii.UE选择优先级低的资源作为候选资源。若t＝30,31,32,33预留的优先级更低，则作为UE1的候选资源。
本公开实施例中，可以不检测控制信息，而是根据window1检测时的历史信息(包括预留资源的优先级)，得到该预留资源的优先级。如果优先级低，则作为UE1的候选资源。
基于同一发明构思，请参考图6，图6为本公开一实施例的终端的结构示意图，该终端60包括：
确定模块61，确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：
根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
随机选择的传输资源。
可选地，所述终端还包括：
第一检测模块，用于在所述第一检测窗口内对指定传输资源进行检测，得到检测结果；根据所述检测结果，周期性预留第一数目个传输资源。
可选地，所述第一数目由以下方式之一确定：
由所述终端根据传输块大小、业务类型、服务质量QoS参数、子载波间隔、传输速率、调制编码方案和层数中的至少一个参数确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述确定模块，用于判断预留的传输资源是否满足所述数据包的性能；若满足，选择预留的传输资源作为所述目标传输资源。
可选地，所述性能包括：时延、QoS参数、传输块大小、调制编码方案、 层数和传输速率中的至少一种。
可选地，满足所述数据包的性能的预留的传输资源满足以下条件至少之一：
与所述数据包的最小时间间隔小于指定门限；
大于所述数据包所需资源。
可选地，所述确定模块，用于若不满足，在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；根据所述检测结果，判断是否存在可用的传输资源；若存在，选择可用的传输资源作为所述目标传输资源。
可选地，所述确定模块，用于若不存在，随机选择传输资源作为所述目标传输资源。
可选地，所述确定模块，用于若不满足，随机选择传输资源作为所述目标传输资源。
可选地，所述确定模块，用于在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；根据所述检测结果，判断是否存在可用的传输资源；若存在，选择可用的传输资源作为所述目标传输资源。
可选地，所述确定模块，用于若不存在，随机选择传输资源作为所述目标传输资源。
可选地，所述第二检测窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述可用的传输资源包括以下至少之一：
未被所述终端和其他终端预留的传输资源；
测量结果小于预设阈值的传输资源；
其他终端的优先级低于所述数据包的优先级的预留传输资源；
其他终端的优先级高于所述数据包的优先级的预留传输资源中未被占用的传输资源；
其他终端的预留传输资源中未被占用的传输资源。
可选地，所述确定模块，用于随机选择传输资源作为所述目标传输资源。
可选地，所述检测结果包括：控制信息的检测结果和/或测量结果。
可选地，所述控制信息中包含：时域信息、频域信息、资源预留指示、资源占用指示和优先级中的至少之一。
可选地，所述测量结果包括：干扰测量结果、无线资源管理RRM测量结果和信道占用测量结果中的至少一种。
可选地，所述周期性预留的传输资源位于第一资源选择窗口内，所述第一资源选择窗口由以下方式之一确定：
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述根据第二检测窗口内的检测结果得到的传输资源位于第二资源选择窗口内，所述第二资源选择窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述随机选择的传输资源位于第三资源选择窗口内，所述第三资源选择窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述传输资源包括时域资源、频域资源、码域资源、空域资源和功率中的至少一种。
可选地，所述目标传输资源为一个资源或多个资源；
当所述目标传输资源为多个资源时，所述多个资源为多个连续的时域资源、多个非连续的时域资源、多个连续的频域资源、多个非连续的频域资源和/或多个候选样式。
可选地，所述指定传输资源为所述数据包对应的传输资源，所述指定传输资源由以下方式之一确定：
由所述终端根据优先级、QoS参数、子载波间隔、业务类型、测量结果中的至少之一确定；
由所述终端和基站配置；
由所述终端和基站预配置；
由协议预定义。
请参考图7，图7为本公开另一实施例的终端的结构示意图，该终端70包括但不限于：射频单元71、网络模块72、音频输出单元73、输入单元74、传感器75、显示单元76、用户输入单元77、接口单元78、存储器79、处理器710、以及电源711等部件。本领域技术人员可以理解，图7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。在本公开实施例中，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710，用于确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：
1)根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
2)根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
3)随机选择的传输资源。
本公开实施例中，在进行待传输数据包的传输资源选择时，可以根据待传输数据包的具体需求，采用不同的方式选择目标传输资源，使得资源分配机制同时满足周期固定大小包业务，周期可变大小包业务，以及非周期业务，可以降低数据包传输时延，保证数据包传输的可靠性，并且减小预留资源浪费的比例，提升系统的资源利用率和频谱效率。
应理解的是，本公开实施例中，射频单元71可用于收发信息或通话过程中，信号的接收和发送，具体地，将来自基站的下行数据接收后，给处理器710处理；另外，将上行的数据发送给基站。通常，射频单元71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71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72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73可以将射频单元71或网络模块72接收的或者在存储器79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73还可以提供与终端70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73包括扬声器、蜂鸣器以及受话器等。
输入单元74用于接收音频或视频信号。输入单元74可以包括图形处理器(Graphics Processing Unit，GPU)741和麦克风742，图形处理器741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76上。经图形处理器741处理后的图像帧可以存储在存储器79(或其它存储介质)中或者经由射频单元71或网络模块72进行发送。麦克风742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71发送到移动通信基站的格式输出。
终端70还包括至少一种传感器75，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761的亮度，接近传感器可在终端70移动到耳边时，关闭显示面板761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75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76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76可包括显示面板761，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761。
用户输入单元77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77包括触控面板771以及其他输入设备772。触控面板771，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771上或在触控面板771附近的操作)。触控面板771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710，接收处理器710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771。除了触控面板771，用户输入单元77还可以包括其他输入设备772。具体地，其他输入设备772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。
进一步地，触控面板771可覆盖在显示面板761上，当触控面板771检测到在其上或附近的触摸操作后，传送给处理器710以确定触摸事件的类型，随后处理器710根据触摸事件的类型在显示面板761上提供相应的视觉输出。虽然在图7中，触控面板771与显示面板761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771与显示面板761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78为外部装置与终端70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78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)并且将接收的输入传输到终端70内的一个或多个元件或者可以用于在终端70和外部装置之间传输数据。
存储器79可用于存储软件程序以及各种数据。存储器79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79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710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79内的软件程序和/或模块，以及调用存储在存储器79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710可包括一个或多个处理单元；可选地，处理器710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710中。
终端70还可以包括给各个部件供电的电源711(比如电池)，可选地，电源711可以通过电源管理系统与处理器710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70包括一些未示出的功能模块，在此不再赘述。
请参考图8，图8为本公开又一实施例的终端的结构示意图，该终端80包括：处理器81和存储器82。在本公开实施例中，终端80还包括：存储在存储器82上并可在处理器81上运行的计算机程序，计算机程序被处理器81执行时实现如下步骤：
确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：
根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
随机选择的传输资源。
处理器81负责管理总线架构和通常的处理，存储器82可以存储处理器81在执行操作时所使用的数据。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述确定待传输的数据包的目标传输资源，之前还包括：
在所述第一检测窗口内对指定传输资源进行检测，得到检测结果；
根据所述检测结果，周期性预留第一数目个传输资源。
可选地，所述第一数目由以下方式之一确定：
由所述终端根据传输块大小、业务类型、服务质量QoS参数、子载波间隔、传输速率、调制编码方案和层数中的至少一个参数确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述确定待传输的数据包的目标传输资源，包括：
判断预留的传输资源是否满足所述数据包的性能；
若满足，选择预留的传输资源作为所述目标传输资源。
可选地，所述性能包括：时延、QoS参数、传输块大小、调制编码方案、层数和传输速率中的至少一种。
可选地，满足所述数据包的性能的预留的传输资源满足以下条件至少之一：
与所述数据包的最小时间间隔小于指定门限；
大于所述数据包所需资源。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述判断预留的传输资源是否满足所述数据包的性能，之后还包括：
若不满足，在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；
根据所述检测结果，判断是否存在可用的传输资源；
若存在，选择可用的传输资源作为所述目标传输资源。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述判断所述资源选择窗口中是否存在可用的传输资源，之后还包括：
若不存在，随机选择传输资源作为所述目标传输资源。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述判断预留的所述传输资源是否满足所述数据包的性能，之后还包括：
若不满足，随机选择传输资源作为所述目标传输资源。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述确定所述数据包的目标传输资源，包括：
在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；
根据所述检测结果，判断是否存在可用的传输资源；
若存在，选择可用的传输资源作为所述目标传输资源。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述判断是否存在可用的传输资源，之后还包括：
若不存在，随机选择传输资源作为所述目标传输资源。
可选地，所述第二检测窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述可用的传输资源包括以下至少之一：
未被所述终端和其他终端预留的传输资源；
测量结果小于预设阈值的传输资源；
其他终端的优先级低于所述数据包的优先级的预留传输资源；
其他终端的优先级高于所述数据包的优先级的预留传输资源中未被占用的传输资源；
其他终端的预留传输资源中未被占用的传输资源。
可选地，计算机程序被处理器81执行时还可实现如下步骤：所述确定所述数据包的目标传输资源，包括：
随机选择传输资源作为所述目标传输资源。
可选地，所述检测结果包括：控制信息的检测结果和/或测量结果。
可选地，所述控制信息中包含：时域信息、频域信息、资源预留指示、资源占用指示和优先级中的至少之一。
可选地，所述测量结果包括：干扰测量结果、无线资源管理RRM测量结果和信道占用测量结果中的至少一种。
可选地，所述周期性预留的传输资源位于第一资源选择窗口内，所述第 一资源选择窗口由以下方式之一确定：
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述根据第二检测窗口内的检测结果得到的传输资源位于第二资源选择窗口内，所述第二资源选择窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述随机选择的传输资源位于第三资源选择窗口内，所述第三资源选择窗口由以下方式之一确定：
由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
由基站或所述终端配置；
由基站或所述终端预配置；
由协议预定义。
可选地，所述传输资源包括时域资源、频域资源、码域资源、空域资源和功率中的至少一种。
可选地，所述目标传输资源为一个资源或多个资源；
当所述目标传输资源为多个资源时，所述多个资源为多个连续的时域资源、多个非连续的时域资源、多个连续的频域资源、多个非连续的频域资源和/或多个候选样式。
可选地，所述指定传输资源为所述数据包对应的传输资源，所述指定传输资源由以下方式之一确定：
由所述终端根据优先级、QoS参数、子载波间隔、业务类型、测量结果中的至少之一确定；
由所述终端和基站配置；
由所述终端和基站预配置；
由协议预定义。
本公开实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述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。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (26)

  1. 一种资源选择方法，应用于终端，包括：
    确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：
    根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
    根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
    随机选择的传输资源。
  2. 如权利要求1所述的资源选择方法，其中，所述确定待传输的数据包的目标传输资源，之前还包括：
    在所述第一检测窗口内对指定传输资源进行检测，得到检测结果；
    根据所述检测结果，周期性预留第一数目个传输资源。
  3. 如权利要求2所述的资源选择方法，其中，所述第一数目由以下方式之一确定：
    由所述终端根据传输块大小、业务类型、服务质量QoS参数、子载波间隔、传输速率、调制编码方案和层数中的至少一个参数确定；
    由基站或所述终端配置；
    由基站或所述终端预配置；
    由协议预定义。
  4. 如权利要求2所述的资源选择方法，其中，所述确定待传输的数据包的目标传输资源，包括：
    判断预留的传输资源是否满足所述数据包的性能；
    若满足，选择预留的传输资源作为所述目标传输资源。
  5. 如权利要求4所述的资源选择方法，其中，所述性能包括：时延、QoS参数、传输块大小、调制编码方案、层数和传输速率中的至少一种。
  6. 如权利要求4所述的资源选择方法，其中，满足所述数据包的性能的预留的传输资源满足以下条件至少之一：
    与所述数据包的最小时间间隔小于指定门限；
    大于所述数据包所需资源。
  7. 如权利要求4所述的资源选择方法，其中，所述判断预留的传输资源是否满足所述数据包的性能，之后还包括：
    若不满足，在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；
    根据所述检测结果，判断是否存在可用的传输资源；
    若存在，选择可用的传输资源作为所述目标传输资源。
  8. 如权利要求7所述的资源选择方法，其中，所述判断所述资源选择窗口中是否存在可用的传输资源，之后还包括：
    若不存在，随机选择传输资源作为所述目标传输资源。
  9. 如权利要求4所述的资源选择方法，其中，所述判断预留的所述传输资源是否满足所述数据包的性能，之后还包括：
    若不满足，随机选择传输资源作为所述目标传输资源。
  10. 如权利要求1所述的资源选择方法，其中，所述确定所述数据包的目标传输资源，包括：
    在所述第二检测窗口内对指定传输资源进行检测，得到检测结果；
    根据所述检测结果，判断是否存在可用的传输资源；
    若存在，选择可用的传输资源作为所述目标传输资源。
  11. 如权利要求10所述的资源选择方法，其中，所述判断是否存在可用的传输资源，之后还包括：
    若不存在，随机选择传输资源作为所述目标传输资源。
  12. 如权利要求1、7和10中任一项所述的资源选择方法，其中，所述第二检测窗口由以下方式之一确定：
    由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
    由基站或所述终端配置；
    由基站或所述终端预配置；
    由协议预定义。
  13. 如权利要求7或10所述的资源选择方法，其中，所述可用的传输资源包括以下至少之一：
    未被所述终端和其他终端预留的传输资源；
    测量结果小于预设阈值的传输资源；
    其他终端的优先级低于所述数据包的优先级的预留传输资源；
    其他终端的优先级高于所述数据包的优先级的预留传输资源中未被占用的传输资源；
    其他终端的预留传输资源中未被占用的传输资源。
  14. 如权利要求1所述的资源选择方法，其中，所述确定所述数据包的目标传输资源，包括：
    随机选择传输资源作为所述目标传输资源。
  15. 如权利要求1所述的资源选择方法，其中，所述检测结果包括：控制信息的检测结果和/或测量结果。
  16. 如权利要求15所述的资源选择方法，其中，所述控制信息中包含：时域信息、频域信息、资源预留指示、资源占用指示和优先级中的至少之一。
  17. 如权利要求15所述的资源选择方法，其中，所述测量结果包括：干扰测量结果、无线资源管理RRM测量结果和信道占用测量结果中的至少一种。
  18. 如权利要求1所述的资源选择方法，其中，所述周期性预留的传输资源位于第一资源选择窗口内，所述第一资源选择窗口由以下方式之一确定：
    由基站或所述终端配置；
    由基站或所述终端预配置；
    由协议预定义。
  19. 如权利要求1所述的资源选择方法，其中，所述根据第二检测窗口内的检测结果得到的传输资源位于第二资源选择窗口内，所述第二资源选择窗口由以下方式之一确定：
    由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
    由基站或所述终端配置；
    由基站或所述终端预配置；
    由协议预定义。
  20. 如权利要求1所述的资源选择方法，其中，所述随机选择的传输资 源位于第三资源选择窗口内，所述第三资源选择窗口由以下方式之一确定：
    由所述终端根据所述数据包的时延和QoS参数中的至少之一确定；
    由基站或所述终端配置；
    由基站或所述终端预配置；
    由协议预定义。
  21. 如权利要求1所述的资源选择方法，其中，所述传输资源包括时域资源、频域资源、码域资源、空域资源和功率中的至少一种。
  22. 如权利要求1所述的资源选择方法，其中，
    所述目标传输资源为一个资源或多个资源；
    当所述目标传输资源为多个资源时，所述多个资源为多个连续的时域资源、多个非连续的时域资源、多个连续的频域资源、多个非连续的频域资源和/或多个候选样式。
  23. 如权利要求2、7和10中任一项所述的资源选择方法，其中，所述指定传输资源为所述数据包对应的传输资源，所述指定传输资源由以下方式之一确定：
    由所述终端根据优先级、QoS参数、子载波间隔、业务类型、测量结果中的至少之一确定；
    由所述终端和基站配置；
    由所述终端和基站预配置；
    由协议预定义。
  24. 一种终端，包括：
    确定单元，用于确定待传输的数据包的目标传输资源，其中，所述目标传输资源选自以下之一：
    根据第一检测窗口内的检测结果得到的周期性预留的传输资源；
    根据第二检测窗口内的检测结果得到的传输资源，所述第二检测窗口的开始时间等于或晚于所述数据包的到达时间；
    随机选择的传输资源。
  25. 一种终端，包括处理器、存储器及存储在所述存储器上并可在所述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23中任一项所述的资源选择方法的步骤。
  26. 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23中任一项所述的资源选择方法的步骤。
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