WO2022111420A1 - 一种传输资源的确定方法及装置 - Google Patents

一种传输资源的确定方法及装置 Download PDF

Info

Publication number
WO2022111420A1
WO2022111420A1 PCT/CN2021/132158 CN2021132158W WO2022111420A1 WO 2022111420 A1 WO2022111420 A1 WO 2022111420A1 CN 2021132158 W CN2021132158 W CN 2021132158W WO 2022111420 A1 WO2022111420 A1 WO 2022111420A1
Authority
WO
WIPO (PCT)
Prior art keywords
time slot
resource
resources
priority
threshold
Prior art date
Application number
PCT/CN2021/132158
Other languages
English (en)
French (fr)
Inventor
刘云
薛丽霞
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2022111420A1 publication Critical patent/WO2022111420A1/zh

Links

Images

Classifications

    • 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
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and apparatus for determining transmission resources.
  • a terminal device can further determine the sensing window and the selection window after determining the time n when there is a transmission demand.
  • the interval between the time slot in the selection window and its corresponding time slot in the sensing window is the corresponding period, where the period may be one or more.
  • the terminal device further filters the resources available to the terminal device by detecting whether the resources on the time slot of the selection window corresponding to the time slot interval period have reserved transmission on the time slot of the sensing window, and obtains a resource set, so that the The terminal device selects the resources required for transmission from the resource set for transmission.
  • the terminal device since the terminal device is in a half-duplex working state, that is, the terminal device can only perform one of reception and transmission at the same time. Therefore, when the terminal device is in the sending state, the time slot in which the sending state is located cannot be received or sensed by the terminal device, so that the sensing result of the time slot cannot be obtained. At this time, the time slot corresponding to the sending time slot in the window will be selected.
  • the resources in the slot are regarded as unavailable and cannot be included in the resource set.
  • the terminal device supports discontinuous reception (DRX)
  • DRX sleep sleep
  • the sensing result of the time slot cannot be obtained.
  • the resources in the time slot corresponding to the sleep time slot are regarded as unavailable and cannot be included in the resource set.
  • the resources in the resource set are less, which cannot meet the transmission requirements of the terminal device, resulting in the transmission failure of the terminal device.
  • the present application provides a method and apparatus for determining transmission resources, which are used to solve the problem that the resources in the resource set in the prior art are few and cannot meet the transmission requirements of terminal equipment.
  • the present application provides a method for determining transmission resources.
  • the method may include: a first device, according to a sensing result of a sensing window, determines when each time slot in the selection window has a sensing result in the sensing window.
  • the number of slots, and the time slot priority of each time slot in the selection window is determined according to the number of time slots that have sensing results in the sensing window for each time slot in the selection window;
  • the first device determines the transmission resource according to the time slot priority of the time slot in the selection window, wherein one time slot in the selection window corresponds to one or more time slots in the sensing window.
  • the first device determines the timeslot of each timeslot in the selection window according to the number of timeslots in the sensing window that have sensing results for each timeslot in the selection window After the priority is determined, the transmission resource is determined according to the time slot priority of the time slot in the selection window, so that the transmission resource that meets the requirement can be flexibly determined, thereby avoiding the problem that the transmission requirement of the first device cannot be met.
  • the priority of the timeslot is positively correlated with the number of timeslots with sensing results. That is, the greater the number of timeslots with sensing results, the higher the priority of the timeslots.
  • the first device determines the transmission resource according to the time slot priority of the time slot in the selection window
  • the specific method may be: the first device determines the transmission resource according to the time slot of the time slot in the selection window.
  • the priority determines the candidate resources in the resource set, and determines the transmission resource in the candidate resources.
  • the first device determines the candidate resource in the resource set according to the time slot priority of the time slot in the selection window, and the specific method may be: when the time slot priority is the highest When the number of resources in the slot is greater than or equal to a first threshold, the first device determines the resource to be selected from the resources in the time slot with the highest priority of the time slot; wherein the first threshold is The minimum value of the number of resources in the resource set; the time slot with the highest priority of the time slot is the first time slot in the selection window, and the first time slot is all in the corresponding sensing window Time slots have sensing results. In this way, the first device determines the resource to be selected from the resources in the time slot with the highest priority of the time slot, and the implementation is relatively simple.
  • the first device determines the candidate resource in the resource set according to the time slot priority of the time slot in the selection window, and the specific method may be: when the time slot priority is the highest When the number of resources in the slot is less than the first threshold, the first device is in the sensing window according to the time slot priority of the time slot, or according to the time slot priority of the time slot and the selection window.
  • the signal strength of the corresponding resource in the resource set determines the resource to be selected; wherein, the first threshold is the minimum value of the number of resources in the resource set; the time slot with the highest priority of the time slot is the selection window
  • the first time slot in the first time slot has sensing results in all time slots in the corresponding sensing window.
  • the first device can flexibly combine the time slot priority of the time slot, or the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window
  • the candidate resource is determined to meet the transmission requirement of the first device.
  • the first device determines the resource to be selected according to the time slot priority of the time slot, and the specific method may be as follows: the first device corresponds to the time slot priority from high to low The candidate resources are sequentially determined in the time slots. In this way, the first device can determine the resources to be selected that meet the requirements, so as to meet the transmission requirements of the first device.
  • the first device determines the resource to be selected according to the time slot priority of the time slot, and the specific method may be as follows: the first device determines that the time slot priority is greater than or equal to the first priority a plurality of time slots with a level threshold, and the first device determines the candidate resource among the resources of the plurality of time slots. In this way, the first device can determine the resources to be selected that meet the requirements, so as to meet the transmission requirements of the first device.
  • the first device determines the candidate resource according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window, and the specific method may be as follows : The first device determines a plurality of second time slots with a time slot priority greater than or equal to the second priority threshold, the first device determines the first resource among the resources of the plurality of second time slots, so The signal strength of the resource corresponding to any one of the first resources in the sensing window is less than or equal to the first strength threshold; when the number of resources included in the first resource is less than the first threshold, the The first device determines a plurality of third time slots with a time slot priority greater than or equal to a third priority threshold, determines a second resource in the resources of the plurality of third time slots, and determines in the second resource For the resources to be selected, the signal strength of the resource corresponding to any one of the second resources in the sensing window is less than or equal to the first strength threshold; wherein, the third priority threshold is less than
  • the first device screens the resources to be selected based on the set second priority threshold, if the number of resources of the first resource screened out by the first device is insufficient, the Lowering the priority threshold from the second priority threshold to the third priority threshold, to filter out more resources from time slots with more time slot priorities, to filter out resources that meet the requirements of the number of resources the second resource, and then the candidate resource that meets the requirement can be determined to meet the transmission requirement of the first device.
  • the first device determines the candidate resource according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window, and the specific method may be as follows : the first device determines a plurality of fourth time slots with a time slot priority greater than or equal to the fourth priority threshold, the first device determines a third resource among the resources of the plurality of fourth time slots, so The signal strength of the resource corresponding to any one of the third resources in the sensing window is less than or equal to the second strength threshold; when the number of resources included in the third resource is greater than or equal to the total resources in the selection window When the number of the first proportion or the preset number, the third resource is the resource to be selected; when the number of resources included in the third resource is less than the first proportion of the total resources in the selection window When the number of ratios or the preset number, the first device determines a fourth resource among the resources of the plurality of fourth time slots, the fourth resource is the candidate resource, and the fourth resource The signal strength of the
  • the first device determines a fifth resource among the resources of the plurality of fifth time slots, the fifth resource is the resource to be selected, and any one of the fifth resources is in the The signal strength of the corresponding resource in the sensing window is less than or equal to the second strength threshold; wherein the third strength threshold is greater than the second strength threshold, and the fifth priority threshold is less than the fourth priority threshold ;
  • the number of resources included in the fourth resource is greater than or equal to the first proportion of the total resources in the selection window or the preset number, or the number of resources included in the fifth resource is greater than or equal to The number or preset number of the first proportion of the total resources in the selection window.
  • the resource to be selected that meets the requirement can be obtained, so that the transmission requirement of the first device can be satisfied.
  • the first device determines the candidate resource according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window, and the specific method may be as follows : the first device uses the resource determined in the resources of multiple time slots whose time slot priority is greater than or equal to the sixth priority threshold as the first candidate resource; the first device selects the resource from the first time slot priority
  • the second candidate resource is determined in the resources in the time slot of the next one or more time slot priorities, and the second candidate resource is X resources in the sixth resource, any one of the sixth resources
  • the signal strength of the resource corresponding to the resource in the sensing window is less than or equal to a fourth strength threshold; the first candidate resource and the second candidate resource are the candidate resources; the X is the first candidate resource
  • the first device can flexibly determine the resource to be selected that meets the requirement, so that the transmission requirement of the first device can be satisfied.
  • the first device determines the first threshold and the resources in the selection window according to the ratio of the timeslots with sensing results in the selection window to the total number of timeslots in the selection window The ratio of the total number, or the ratio of the first threshold to the total number of resources of the time slots with sensing results in the selection window. In this way, the first device can accurately determine the first threshold, so that the specific manner of obtaining the resource to be selected can be determined according to the first threshold.
  • the physical layer of the first device reports the resource to be selected and the slot priority corresponding to the resource to be selected to a media access control (media access control, MAC) layer.
  • MAC media access control
  • the first device determines the transmission resource in the candidate resource
  • the specific method may be: the MAC layer of the first device determines the priority of the time slot corresponding to the candidate resource according to the MAC layer of the first device.
  • the transmission resources are determined from high to low. In this way, the first device can determine the transmission resource that meets the transmission requirement.
  • the physical layer of the first device when the number of resources to be selected is less than the number of transmission resources required by the first device, the physical layer of the first device sends first indication information to the MAC layer, The first indication information instructs the MAC layer to determine the time slot range of the transmission resource. In this way, when the number of the resources to be selected is insufficient, the first device can be made to further determine more transmission resources according to the time slot range indicated by the first indication information, so as to meet the transmission requirement of the first device.
  • the first device determines the transmission resource in the candidate resource
  • the specific method may be: the first device uses the candidate resource as the first part of the transmission resource; The first device determines the second part of the transmission resource in the time slot other than the sixth time slot in the time slot range, and the sixth time slot is the time slot where the resource to be selected is located; wherein, The number of resources of the second part of the transmission resources is the number of the transmission resources minus the number of resources of the candidate resources. In this way, when the number of the resources to be selected is insufficient, the first device can be made to further determine more transmission resources according to the time slot range indicated by the first indication information, so as to meet the transmission requirement of the first device.
  • the first device determines a discontinuous reception DRX parameter, and the DRX parameter indicates a sleep time slot and an active time slot of the first device; wherein, there is no sensing result on the sleep time slot, There are sensing results on the active time slot. In this way, the first device can sense the sensing result on the activation time slot.
  • the present application provides a method for determining a transmission resource, the method may include: when the first device determines that there is no sensing result in one or more time slots in the sensing window, assigning the one or more time slots to corresponding The resources in the time slots of the selection window are excluded from the resource set, and the seventh resource in the resource set is obtained; the first device determines that the number of resources included in the first resource is less than the total resources in the selection window. When the number of the fifth proportion is used, a transmission resource is determined in the first resource; wherein, one time slot in the selection window corresponds to one or more time slots in the sensing window.
  • the first device when the first device determines that there is no sensing result in one or more timeslots in the sensing window, the first device excludes the resources in the timeslots of the selection window corresponding to the one or more timeslots from the resource set , when it is determined that the number of resources of the seventh resource in the resource set is less than the number of the fifth proportion of the total resources in the selection window, the transmission resource is determined in the first resource, so that even if the number of resources In the case where the number is less than the fifth proportion of the total resources in the selection window, the transmission resources can also be determined, so as to avoid the problem of not getting the transmission resources due to insufficient resources.
  • the physical layer of the first device reports the seventh resource to the MAC layer of the first device. In this way, the MAC of the first device can determine the required transmission resources.
  • the first device when the first device determines that the signal strength of the resource corresponding to the eighth resource in the sensing window is greater than a fifth strength threshold, the first device places the eighth resource in the Excluded from the resource set, to obtain the ninth resource in the resource set, the ninth resource is the resource other than the eighth resource in the seventh resource; the physical layer of the first device will The ninth resource is reported to the MAC layer of the first device. In this way, the MAC of the first device can determine the required transmission resources.
  • the first device determines the transmission resource in the seventh resource, and a specific method may be: the first device determines the transmission resource in the ninth resource. In this way, the first device can determine the required transmission resources.
  • the present application further provides a communication apparatus, where the communication apparatus may be a first device, and the communication apparatus has the function of implementing the first device in the first aspect or each possible design example of the first aspect.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a storage unit and a processing unit, and may optionally also include a transceiver unit, and these units may perform the above-mentioned first aspect or each possible design example of the first aspect, Or for the corresponding functions of the first device in the second aspect or each possible design example of the second aspect, please refer to the detailed description in the method example for details, which will not be repeated here.
  • the structure of the communication apparatus includes a memory and a processor, and optionally a transceiver, which can be used to send and receive data and communicate with other devices in the communication system interaction, the processor is configured to support the communication apparatus to perform the first aspect or each possible design example of the first aspect, or the first device in the second aspect or each possible design example of the second aspect. corresponding function.
  • the memory is coupled to the processor and holds program instructions and data necessary for the communication device.
  • an embodiment of the present application provides a communication system, which may include the above-mentioned first device and the like.
  • a computer-readable storage medium provided by an embodiment of the present application, the computer-readable storage medium stores a program instruction, and when the program instruction is executed on a computer, makes the computer execute the first aspect of the embodiment of the present application and its contents.
  • a computer-readable storage medium can be any available medium that can be accessed by a computer.
  • computer readable media may include non-transitory computer readable media, random-access memory (RAM), read-only memory (ROM), electrically erasable Except programmable read only memory (electrically EPROM, EEPROM), CD-ROM or other optical disk storage, magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other media accessed by a computer.
  • RAM random-access memory
  • ROM read-only memory
  • EEPROM electrically erasable Except programmable read only memory
  • CD-ROM or other optical disk storage magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other media accessed by a computer.
  • the embodiments of the present application provide a computer program product including computer program codes or instructions, which, when run on a computer, enables the computer to implement the first aspect or any possible design of the first aspect, or the first aspect.
  • the present application further provides a chip, including a processor, which is coupled to a memory and configured to read and execute program instructions stored in the memory, so that the chip implements the above-mentioned first aspect Or any possible design of the first aspect, or the method described in the second aspect and any possible design thereof.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by the present application.
  • FIG. 2 is a schematic diagram of a selection window provided by the present application with no sensing result in the sensing window;
  • FIG. 3 is a schematic diagram of a DRX-based communication process provided by the present application.
  • Fig. 4 is a kind of DRX schematic diagram that this application provides
  • FIG. 5 is a schematic diagram of a selection window provided by the present application with no sensing result in the sensing window
  • FIG. 6 is a flowchart of a method for determining transmission resources provided by the present application.
  • FIG. 7 is a schematic diagram of whether a selection window provided by the application has a sensing result in the sensing window
  • FIG. 8 is a schematic diagram of a screening sequence of a candidate resource provided by the present application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by the application.
  • FIG. 11 is a structural diagram of a communication device provided by this application.
  • Embodiments of the present application provide a method and apparatus for determining transmission resources, which are used to solve the problem that the resources in the resource set in the prior art are few and cannot meet the transmission requirements of terminal equipment.
  • the methods and devices described in this application are based on the same technical concept. Since the methods and devices have similar principles for solving problems, the implementations of the devices and methods can be referred to each other, and repeated descriptions will not be repeated here.
  • At least one (species) refers to one (species) or multiple (species), and multiple (species) refers to two (species) or more than two (species).
  • FIG. 1 shows the architecture of a possible communication system to which the method for determining transmission resources provided by the embodiments of the present application is applicable.
  • the architecture of the communication system may include a network device and at least two terminal devices, and at least two terminal devices
  • the terminal device 1 and the terminal device 2 in FIG. 1 , etc., data may be transmitted between the terminal device 1 and the terminal device 2 through a sidelink (sidelink).
  • sidelink sidelink
  • Terminal equipment may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, vehicle user equipment, in-vehicle communication modules, wireless terminals in self-driving, wireless terminals in remote medical, smart grid wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • a terminal device with a wireless transceiver function and a chip that can be installed in the aforementioned terminal device are collectively referred to as a terminal device.
  • the network device can be a device with a wireless transceiver function or a chip that can be installed in the network device, and the network device includes but is not limited to: a base station (generation node B, gNB), a radio network controller (radio network controller, RNC), a node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit ( baseband unit, BBU), access point (AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point) in wireless fidelity (wireless fidelity, WIFI) systems , TP), etc., and can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU), etc.
  • RNC radio network controller
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements wireless chain
  • the functions of the road control radio link control, RLC
  • media access control media access control, MAC
  • physical (physical, PHY) layers The functions of the road control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layers.
  • the network device may be a CU node, a DU node, or a device including a CU node and a DU node.
  • the CU may be divided into network equipment in the access network RAN, and the CU may also be divided into network equipment in the core network CN, which is not limited.
  • the communication system shown in FIG. 1 may be, but is not limited to, a fifth generation (5th Generation, 5G) system, such as a new generation radio access technology (NR).
  • 5G fifth generation
  • NR new generation radio access technology
  • the method of the embodiment is also applicable to various communication systems in the future, such as a 6G system or other communication networks.
  • an application perception mechanism is proposed in the communication between terminal devices, that is, a terminal device can further determine a perception window and a selection window after determining the time n when there is a transmission requirement, wherein the transmission requirement of the terminal device is that the terminal device needs to send data. etc. demand.
  • the interval between the time slot in the selection window and its corresponding time slot in the sensing window is the corresponding period, where the period can be one or more, that is, a time slot in the selection window can correspond to one or more of the sensing window. multiple time slots. Exemplarily, the number of periods may be configured to be any one or several of 1-99, or may also be configured to be an integer multiple of 100, etc., which is not limited in this application.
  • the terminal device further filters the resources available to the terminal device by detecting whether the resources on the time slot of the selection window corresponding to the time slot interval period have reserved transmission on the time slot of the sensing window, and obtains a resource set, so that the The terminal device selects the resources required for transmission from the resource set for transmission.
  • the terminal device is in a half-duplex working state, that is, the terminal device can only perform one of reception and transmission at the same time.
  • the time slot in which the sending state is located is the transmission (TX) time slot, and the terminal device cannot receive or sense, so the sensing result of the time slot cannot be obtained, and the corresponding selection window cannot be determined.
  • the resource on the time slot is reserved for transmission. In this case, all the resources in the time slot corresponding to the sending time slot in the selection window are regarded as unavailable, and they are all excluded from the resource set. For example, in the schematic diagram shown in FIG. 2, none of the resources in the time slot corresponding to the TX time slot in the sensing window in the selection window are available.
  • the terminal device supports DRX, which can make the terminal device enter a sleep state, that is, a non-receiving state, when there is no data transmission or when the data volume demand is small, thereby reducing the impact of the terminal device caused by demodulation downlink signals. power consumption.
  • the process of DRX may be as shown in FIG. 3 .
  • the network device configures DRX parameters for the terminal device, and the DRX parameters indicate the sleep (sleep) time slot and the active (active) time slot of the terminal device; the terminal device determines when to enter the sleep state and when to enter the monitoring or receiving state according to the DRX parameters state, so that the terminal device can save power consumption through the sleep state.
  • the network device will send downlink data or downlink control information (DCI) to the terminal device when the terminal device is in the DRX active state according to the DRX schematic diagram shown in Figure 4, and the terminal device is in the DRX active state. In the sleep state, downlink data and downlink control signals are not transmitted.
  • DCI downlink data or downlink control information
  • one terminal device when communicating between two terminal devices, one terminal device will also send data or signals when the other terminal device is in an active state, and will not perform data or signals when the other terminal device is in a dormant state. transmission of signals, etc.
  • the terminal device supports DRX
  • a DRX sleep (sleep) time slot appears in the sensing window
  • the terminal device cannot obtain the sensing result of the time slot, and also cannot determine whether the resources on the time slot of the corresponding selection window have Schedule a transfer.
  • all the resources in the time slot corresponding to the sleep time slot in the selection window are regarded as unavailable, and they are all excluded from the resource set.
  • the resources in the time slot corresponding to the sleep time slot in the sensing window in the selection window are not available.
  • the period between the time slot in the selection window and the time slot in the sensing window is configured with 8 values from 20 milliseconds (ms) to 35 ms as an example for description. Only the periods of 20ms and 35ms are shown in the figure, and the other 6 periods are not shown. Therefore, the resources in the 8 time slots corresponding to the TX time slot in the sensing window in the selection window in Fig. 2 are not available, and in Fig. 5, the resources in the 8 time slots corresponding to the sleep time slot in the sensing window in the selection window are unavailable. None of the resources are available.
  • the present application proposes a method for determining transmission resources to solve the above problems.
  • a method for determining a transmission resource provided by an embodiment of the present application is applicable to the communication system shown in FIG. 1 .
  • the specific flow of the method may include:
  • Step 601 The first device determines, according to the sensing result of the sensing window, the number of timeslots for which each time slot in the sensing window has sensing results in the sensing window; wherein, a timeslot in the sensing window corresponds to a time slot in the sensing window. one or more time slots.
  • the first device may be a terminal device or a chip in the terminal device, which is not limited in this application.
  • the first device determines the corresponding sensing window and selection window according to time n. Specifically, as shown in FIG. 7 , the first device determines that the corresponding selection window is after time n and within the time slot range before the upper limit of the delay, and determines that the corresponding sensing window is before time n.
  • the sensing window may be determined based on the selection window, and the time slot in the selection window is mapped to the time slot before time n at a preset period, that is, the time slot in the corresponding sensing window.
  • the specific positions of the selection window and the sensing window may be implemented by the first device.
  • the first device determines the specific position of the selection window within the time slot range after satisfying the selection window at time n and before the time delay upper limit, and determines the sensing window within the range satisfying the sensing window before time n. specific location.
  • the period between the time slot in the selection window and the time slot in the sensing window can be configured with one or more values, so one time slot in the selection window can correspond to a time slot in the sensing window one or more time slots.
  • the number of time slots in the sensing window corresponding to one time slot in the selection window may be the same as the number of period values. It should be noted that, in practice, when there are multiple values of the period, the number of time slots in the sensing window corresponding to one time slot in the selection window may be smaller than the number of values of the period.
  • the time slot in which the transmitting state is located (ie, the TX time slot) has no sensing result.
  • the first device supports DRX there is no sensing result in the DRX sleep time slot in the sensing window. Therefore, in the selection window, some time slots in the sensing window all have sensing results, some time slots have sensing results, some time slots have no sensing results, and some time slots have no sensing results at all.
  • time slot 1 in the selection window has a sensing result on the time slot corresponding to the period t1 in the sensing window, and there is no sensing result on the time slot corresponding to the period t2, that is, the time slot 1 is at The number of time slots in the sensing window with sensing results is 1.
  • the time slot 2 in the selection window has the sensing result on the time slot corresponding to the period t1 in the sensing window, and also has the sensing result on the time slot corresponding to the period t2, that is, the time slot 2 has the sensing result in the sensing window.
  • the number is 2.
  • the time slot 3 in the selection window has no sensing result on the time slot corresponding to the period t1 in the sensing window, and there is no sensing result on the time slot corresponding to the period t2, that is, when the time slot 3 has the sensing result in the sensing window.
  • the number of slots is 0.
  • the first device when the first device supports DRX, before step 701, the first device may determine a DRX parameter, and the DRX parameter may indicate a sleep time slot and an active time slot of the first device; Wherein, there is no sensing result on the dormant time slot, and there is a sensing result on the active time slot.
  • the method for the first device to determine the DRX parameters may be: the first device determines the DRX parameters configured by the network device for the first device; or the first device negotiates the DRX parameters with other devices, and the other devices may be terminal devices or A chip in a network device or a terminal device or a chip in a network device, etc.
  • Step 602 The first device determines the time slot priority of each time slot in the selection window according to the number of time slots in the sensing window for which each time slot in the selection window has a sensing result.
  • the priority of the timeslot is positively correlated with the number of timeslots with sensing results, that is, the greater the number of timeslots with sensing results, the higher the timeslot priority.
  • time slot 1 in the selection window has a number of time slots with sensing results in the sensing window
  • time slot 2 has the number of time slots with sensing results in the sensing window.
  • the number of timeslots with sensing results in time slot 3 in the sensing window is 0, it can be concluded that the time slot of time slot 2 has the highest priority, the time slot of time slot 3 has the lowest priority, and the time slot of time slot 1 has the lowest priority.
  • the slot priority is higher than the slot priority of slot 3 and lower than the slot priority of slot 2.
  • the time slot priority of each time slot in the selection window may be identified by the number of time slots with sensing results in the sensing window. For example, still taking FIG. 7 as an example, the time slot priority of time slot 1 in the selection window is marked with 1, the time slot priority of time slot 2 is marked with 2, and the time slot priority of time slot 3 is marked with 0.
  • the priority of each time slot in the selection window may be identified by a number.
  • the higher the time slot priority the smaller the number corresponding to the time slot priority.
  • time slot 2 and time slot 1 and The time slot priorities of time slot 3 are respectively identified by 1, 2, 3, or by 1, 3, 5, or by 2, 5, 8, etc. It should be understood that as long as they are different numbers from small to large That is, this application does not limit it.
  • the higher the time slot priority the larger the number corresponding to the time slot priority.
  • time slot 2 and time slot 1 with the time slot priority from high to low The time slot priorities of time slot 3 and time slot 3 are respectively identified by 3, 2, 1, or by 6, 3, 1, or by 7, 4, 2, etc. It should be understood that as long as it is from large to small Different numbers may be used, which is not limited in this application.
  • time slot priority of each time slot may also be identified in other ways, which is not limited in this application.
  • Step 603 The first device determines the transmission resource according to the time slot priority of the time slot in the selection window.
  • the transmission resource may be a resource for sending.
  • the first device determines the transmission resource according to the time slot priority of the time slot in the selection window.
  • the specific method may be as follows: the first device determines the resource set according to the time slot priority of the time slot in the selection window. The candidate resources in the selection; after that, the first device determines the transmission resources in the candidate resources.
  • the resource set may be composed of multiple candidate resources, and the multiple candidate resources are used for the first device to select the required transmission resources.
  • the first device determines the resources to be selected in the resource set according to the time slot priority of the time slot in the selection window, and the specific method may be: the number of resources in the time slot with the highest time slot priority is greater than or When equal to the first threshold, the first device determines the resource to be selected among the resources in the time slot with the highest time slot priority; wherein, the first threshold value is the minimum number of resources in the resource set; the time slot priority is the highest The time slot is the first time slot in the selection window, and all time slots in the corresponding sensing window have sensing results, or some time slots in all time slots in the corresponding sensing window have sensing results. Perceived results.
  • the first time slot is the time slot with the largest number of time slots in the selection window that have the sensing result in the corresponding sensing window.
  • the first time slot is time slot 2 in the selection window.
  • the method for the first device to determine the resource to be selected among the resources in the time slot with the highest time slot priority may adopt the existing method.
  • the first device may screen the resources to be selected based on the signal strength of the resource in the time slot with the highest time slot priority corresponding to the resource in the sensing window. Specifically, the first device is in the time slot with the highest time slot priority.
  • the signal strength of any resource corresponding to the resource in the sensing window is less than or equal to the preset strength threshold.
  • the signal strength involved in this application may be, but not limited to, reference signal received power (reference signal received power, RSRP) and the like.
  • reference signal received power reference signal received power
  • the first device determines the resource to be selected in the resource set according to the time slot priority of the time slot in the selection window, and the specific method may be: the number of resources in the time slot with the highest time slot priority is less than At the first threshold, the first device determines the resource to be selected according to the time slot priority of the time slot, or according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window. The time slot with the highest time slot priority is still the first time slot in the selection window.
  • the specific method may be: the number of resources in the time slot with the highest time slot priority is less than
  • the first device determines the resource to be selected according to the time slot priority of the time slot, or according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window.
  • the time slot with the highest time slot priority is still the first time slot in the selection window.
  • the first device determines the resource to be selected according to the time slot priority of the time slot, or according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window, Specifically, the following five methods can be included:
  • Method a1 The first device determines the resources to be selected according to the time slot priorities of the time slots.
  • the specific method may be as follows: the first device sequentially determines the resources to be selected according to the time slots corresponding to the time slot priorities from high to low.
  • the first device first determines some resources to be selected from the time slot with the highest priority of the time slot, and then continues to determine some resources to be selected from the time slot with the second highest priority of the time slot. When the number is still less than the first threshold, continue to determine some resources to be selected from the time slots of the next level of time slot priority, until the number of all the resources to be selected finally determined is greater than or equal to the first threshold.
  • the first device may screen the resource to be selected based on the signal strength of the resource corresponding to the resource in the time slot of each time slot priority in the sensing window. Wherein, the signal strength of the resource corresponding to any one of the resources to be selected selected by the first device in the sensing window is less than or equal to the preset strength threshold.
  • Method a2 The first device determines the resource to be selected according to the time slot priority of the time slot.
  • the specific method may be as follows: the first device determines a plurality of time slots whose time slot priority is greater than or equal to the first priority threshold, and the first device is A candidate resource is determined from the resources of the multiple time slots.
  • the method for the first device to determine the resource to be selected among the resources of the multiple time slots may also adopt an existing method, and for details, reference may be made to the above similar description, which will not be described in detail here.
  • multiple timeslots with a time slot priority greater than or equal to the first priority threshold value represent multiple timeslots with a timeslot priority greater than or equal to the first priority level
  • the first priority threshold value may correspond to one priority grade. For example, still taking FIG. 7 as an example, if the priority level corresponding to the first priority threshold is the priority level corresponding to time slot 1, in some embodiments, in the time slot 2, time slot 1 and time slot 3
  • slot priority is identified by slot priority 3
  • slot priority 2 and slot priority 1 multiple slots with slot priority greater than or equal to the first priority threshold are slot priority.
  • a plurality of time slots whose level is higher than or equal to the time slot priority 2, namely the time slot 2 and the time slot 1 corresponding to the time slot priority 3 and the time slot priority 2.
  • the slot Multiple timeslots with priorities greater than or equal to the first priority threshold are multiple timeslots with timeslot priorities higher than or equal to timeslot priority 2, namely timeslot priority 1 and timeslot priority 2 corresponds to slot 2 and slot 1.
  • Method a3 The first device determines the resource to be selected according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window, and the specific method may be:
  • the first device determines a plurality of second time slots whose priority of the time slot is greater than or equal to the second priority threshold, and the first device determines the first resource among the resources of the plurality of second time slots, and any one of the first resources
  • the signal strength of the corresponding resource in the sensing window is less than or equal to the first strength threshold
  • the first device determines a plurality of third time slots with a time slot priority greater than or equal to the third priority threshold, and determines among the resources of the plurality of third time slots the second resource, and determining the resource to be selected in the second resource, and the signal strength of the resource corresponding to any one of the second resources in the sensing window is less than or equal to the first strength threshold;
  • the third priority threshold is smaller than the second priority threshold, and the number of resources included in the second resource is greater than or equal to the first threshold.
  • the method a3 is mainly as follows: when the first device screens the resources to be selected based on the set second priority threshold, if the number of resources of the first resource screened out by the first device is insufficient, Then reduce the priority threshold from the second priority threshold to the third priority threshold to filter out more resources from time slots with more time slot priorities to filter out the second resource that meets the requirements of the number of resources .
  • the third priority threshold is smaller than the second priority threshold means that the third priority level corresponding to the third priority threshold is lower than the second priority level corresponding to the second priority threshold.
  • the third priority level may be the priority corresponding to time slot 3
  • the second priority level may be the priority corresponding to time slot 1
  • the priority level of time slot 3 is lower than that of time slot 3
  • a priority of 1 indicates that the third priority level is lower than the second priority level, that is, the third priority threshold is smaller than the second priority threshold.
  • the third priority threshold is less than The second priority threshold indicates that the priority level corresponding to time slot priority 1 is lower than the priority level corresponding to time slot priority 2; for another example, the time slot priorities of time slot 2, time slot 1 and time slot 3 are respectively In the case of being identified by time slot priority 1, time slot priority 2 and time slot priority 3, if the third priority threshold is smaller than the second priority threshold, it means that the priority level corresponding to time slot priority 3 is smaller than that of the time slot The priority level corresponding to priority 2.
  • Method a4 The first device determines the resource to be selected according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window, and the specific method may be:
  • the first device determines a plurality of fourth time slots with a time slot priority greater than or equal to the fourth priority threshold, and the first device determines a third resource among the resources of the plurality of fourth time slots, and any resource among the third resources
  • the signal strength of the corresponding resource in the sensing window is less than or equal to the second strength threshold
  • the third resource is the resource to be selected
  • the first device determines the fourth resource among the resources of the plurality of fourth time slots, and the fourth The resource is a resource to be selected, and the signal strength of the resource corresponding to any one of the fourth resources in the sensing window is less than or equal to the third strength threshold; or, the first device determines that the priority of the time slot is greater than or equal to the fifth priority threshold multiple fifth time slots, the first device determines the fifth resource among the resources of the multiple fifth time slots, the fifth resource is the resource to be selected, and any one of the fifth resources is in the sensing window corresponding to the resource The signal strength is less than or equal to the second strength threshold;
  • the third intensity threshold is greater than the second intensity threshold
  • the fifth priority threshold is less than the fourth priority threshold
  • the number of resources included in the fourth resource is greater than or equal to the number of the first proportion of the total resources in the selection window or the predetermined number
  • the number is set, or, the number of resources included in the fifth resource is greater than or equal to the number of the first proportion of the total resources in the selection window or the preset number.
  • a plurality of fourth time slots with a time slot priority greater than or equal to the fourth priority threshold, and a plurality of fifth time slots with a time slot priority greater than or equal to the fifth priority threshold The principle of , and the principle of multiple second time slots with a time slot priority greater than or equal to the second priority threshold in the above method a3, and a plurality of third time slots with a time slot priority greater than or equal to the third priority threshold, And in the above-mentioned method a2, the principle of a plurality of time slots whose time slot priority is greater than or equal to the first priority threshold is similar, which all indicate that the time slot priority is greater than or equal to a time slot with a preset priority level. For details, please refer to the method. The descriptions in a2 and a3 will not be described in detail here.
  • the principle that the fifth priority threshold is less than the fourth priority threshold is the same as the principle that the third priority threshold is less than the second priority threshold in the above method a3, which can be referred to each other and will not be described in detail here.
  • Method a5 The first device determines the resource to be selected according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window, and the specific method may be:
  • the first device uses, as the first candidate resource, the resource determined in the resources of the multiple time slots with the time slot priority greater than or equal to the sixth priority threshold;
  • the first device determines the second candidate resource from the resources in the time slots of the next one or more time slot priorities of the first time slot priority, the second candidate resources are X resources in the sixth resources, and the first The signal strength of the resource corresponding to any one of the six resources in the sensing window is less than or equal to the fourth strength threshold;
  • the first resource to be selected and the second resource to be selected are resources to be selected; X is the difference between the number of resources included in the first resource to be selected and the first threshold; the priority of the first time slot is greater than or equal to the sixth priority The lowest slot priority in the class threshold.
  • the above-mentioned X resources may be X resources randomly selected by the first device from the sixth resources.
  • the multiple priority thresholds involved in this application may be set by the first device itself according to requirements, which is not limited in this application.
  • the first device may determine the ratio of the first threshold to the total number of resources in the selection window according to the ratio of the timeslots with sensing results in the selection window to the total number of timeslots in the selection window, or the The ratio of a threshold to the total number of resources in the time slot with sensing results within the selection window.
  • the ratio of the timeslots with sensing results in the selection window to the total number of timeslots in the selection window is greater than or equal to the second ratio, the ratio of the first threshold to the total number of resources in the selection window, or the ratio of the time slots in the selection window to the total number of resources in the selection window.
  • the ratio of the total resources of the time slots with the sensing result may be the third ratio; when the ratio of the time slots with the sensing result in the selection window to the total number of time slots in the selection window is less than the second ratio, the first threshold and the selection window are The ratio of the total number of resources in the selection window, or the ratio to the total number of resources in the time slot with the sensing result in the selection window may be the fourth ratio; wherein, the third ratio is greater than the fourth ratio.
  • the first device may reduce the ratio of the first threshold to the total number of resources in the selection window when the ratio of the timeslots with sensing results in the selection window to the total number of timeslots in the selection window is less than a certain ratio, or reduce the ratio of the first threshold to the total number of resources in the selection window, or reduce the ratio of the first threshold to the total number of resources in the selection window.
  • the fourth proportion when the second proportion is 30%, the fourth proportion may be 5%.
  • the second proportion and the fourth proportion may have other values according to actual needs, which are not limited in this application.
  • the third proportion may be a value of 20%, 30%, 35%, 50%, etc., of course, may also be other values preset according to actual needs, which is not limited in this application.
  • the above-mentioned values of the first proportion, the second proportion, the third proportion and the fourth proportion are merely examples, and are not intended to limit the present application.
  • the above four proportions may be pre-configured by other devices for the first device, or may be initial configuration values of the first device itself, etc., which are not limited in this application.
  • the first device may use all the resources in the selection window as resources to be selected , and randomly select transmission resources among them.
  • the above-mentioned process of determining the resource to be selected by the first device may be implemented through a physical layer (physical layer, PHY) of the first device. Further, when the first device determines the transmission resource among the resources to be selected, it may be implemented through a media access control (media access control, MAC) layer of the first device.
  • PHY physical layer
  • MAC media access control
  • the physical layer of the first device after the physical layer of the first device determines the resource to be selected, the physical layer of the first device reports the resource to be selected and the slot priority corresponding to the resource to be selected to the MAC layer.
  • the physical layer of the first device reports the resources to be selected and the priority of the time slot corresponding to the resources to be selected to the MAC layer, there may be the following three methods:
  • Manner b1 The physical layer of the first device reports the resources to be selected to the MAC layer in order from high to low according to the priority of the time slot corresponding to the resources to be selected.
  • Manner b2 The physical layer of the first device reports the resources corresponding to the priority of each time slot to the MAC layer in sequence according to the priority of the time slot from high to low. For example, the candidate resource with the highest time slot priority is reported first, then the resource with the next level time slot priority is reported, and so on, until the reporting of all the candidate resources and the corresponding time slot priority is completed.
  • Manner b3 The physical layer of the first device reports the resources to be selected to the MAC layer together, and simultaneously reports the priority of the time slot corresponding to the resources to be selected.
  • the specific method may be: the MAC layer of the first device determines the transmission resource according to the priority of the time slot corresponding to the resource to be selected from high to low.
  • the specific method may be as follows: the MAC layer of the first device determines the top N timeslot priorities from high to low among the priority of the time slots corresponding to the resources to be selected. The resources corresponding to the slot priorities. When the resources corresponding to the current N timeslot priorities are greater than the number of transmission resources required by the first device, the MAC layer of the first device randomly selects the resources corresponding to the first N timeslot priorities. transfer resources. Among them, N is a positive integer greater than or equal to 1.
  • the physical layer of the first device when the number of resources to be selected is less than the number of transmission resources required by the first device, the physical layer of the first device also sends first indication information to the MAC layer, and the first indication The information instructs the MAC layer to determine the time slot range for transmission resources.
  • the specific method may be as follows: the first device takes the resource to be selected as the first part of the transmission resource; The second part of the transmission resource is determined in the slot, and the sixth time slot is the time slot where the resource to be selected is located; wherein, the number of resources in the second part of the transmission resource is the number of transmission resources minus the number of resources of the resource to be selected.
  • the specific method may be: the MAC layer of the first device may be in the time slot range except the sixth time slot.
  • a second portion of the transmission resource is randomly selected in a time slot other than the slot.
  • the number of time slots with sensing results in the sensing window for time slot 1 in the selection window is 1, and the time slot 2 in the selection window has sensing results in the sensing window.
  • the number of time slots in the selection window is 2, and the time slot 3 in the selection window has the number of time slots with sensing results in the sensing window 0.
  • the physical layer of the first device When the total number of resources in time slot 1 and time slot 2 is greater than or equal to 10, at this time, the physical layer of the first device first selects three resources to be selected from the resources of time slot 2 based on RSRP1, because the resources to be selected are insufficient. 10 resources, continue to filter in the resources of time slot 1, if only 3 candidate resources are screened out, and the total number of candidate resources is still less than 10, then increase the value of RSRP1 to RSRP2 for re-selection.
  • the selected resources to be selected at this time are 10
  • the 10 selected resources that are screened out are reported to the MAC layer.
  • the physical layer of the first device can determine the resources that satisfy RSRP1 among the resources of time slot 1 and time slot 2 as candidate resources and report it to the MAC layer, and report the first resource at the same time.
  • An indication message indicates that the time slot range for determining the transmission resource is time slot 1, time slot 2 and time slot 3, wherein time slot 3 is used as a time slot for random resource selection.
  • the physical layer of the first device reports the resources to be selected from time slot 1 and time slot 2, it may simultaneously report an indication to indicate that the MAC layer is in time slot 3 Other transmission resources are randomly selected.
  • the physical layer of the first device selects the resources to be selected in the selection window, it can preferentially screen in time slot 2.
  • the resources to be selected are insufficient, it can continue to filter in time slot 1. If it is still insufficient, continue to screen. Screening in time slot 3 can refer to FIG. 8 for details.
  • the first device may perform step 604 as shown in FIG. 6 : the first device transmits the transmission resource to the second device based on the transmission resource data.
  • the first device transmits data to the second device based on the transmission resource, which may specifically be: the first device transmits data to the second device based on the transmission resource.
  • the second device may be a terminal device, or a chip in a terminal device, or a network device, or a chip in a network device, or the like.
  • any device that can receive data sent by the first device can be used as the second device, which is not limited in this application.
  • the first device determines the time slot priority of each time slot in the selection window according to the number of time slots in the sensing window for which each time slot in the selection window has a sensing result After the level is selected, the transmission resource is determined according to the time slot priority of the time slot in the selection window, so that the transmission resource that meets the requirement can be flexibly determined, thereby avoiding the problem that the transmission requirement of the first device cannot be met.
  • the steps for screening the candidate resources can be as follows:
  • a candidate resource is a single time slot, the frequency domain can cover one or more consecutive subchannels, and the time domain resources are between [n+T 1 , n+T 2 ] ; and the total number of resources between [n+T 1 , n+T 2 ] is M_total.
  • the selection of T1 is implemented by the UE, and the range of T1 is in [0, ],in In time slot units, as defined in Table 8.1.4-2, ⁇ SL is the subcarrier spacing of the SL BWP. If T 2min is smaller than the remaining data delay margin, T2 is implemented by the UE, and T2 is [T 2min , remaining data delay margin], otherwise T2 is set as the remaining delay amount.
  • T0 is defined above, Defined in Table 8.1.4-1, where ⁇ SL is the subcarrier spacing configuration of the SL BWP.
  • the UE senses the time slots that may belong to the resource pool within the sensing window, except where its own transmissions occur. The UE will perform the actions in the following steps based on the decoded PSCCH in these time slots and the measured RSRP in these time slots.
  • Condition 1 In step 2, the UE has no sensing result in the time slot corresponding to t_m ⁇ SL;
  • Condition 2 For sl-ResourceReservePeriodList-r16 and in the time slot All cycle values received in hypothetical SCI format 1-A, where the resource reservation field is set to the cycle value and indicates the subchannels of all resources in the resource pool, and the time slot where Rxy is located satisfies step 6c).
  • T scal is set to the selection window size T2 converted to ms units.
  • UE reports resources in SA .
  • step 5) when there are 1 or more Tx time slots, when the number of resources excluded by step 5) in the selection window is less than X*Mtotal, it will enter an infinite loop, and no matter how step 7) increases Th (pi, pj), neither can meet the requirements of step 7), resulting in the inability to determine the transmission resources.
  • the present application also proposes a method for determining transmission resources to break the existing infinite loop that may exist, so as to ensure that transmission resources can be determined.
  • a method for determining a transmission resource provided by an embodiment of the present application is applicable to the communication system shown in FIG. 1 .
  • the specific flow of the method may include:
  • Step 901 When the first device determines that there is no sensing result in one or more time slots in the sensing window, it excludes the resources in the time slots of the selection window corresponding to the one or more time slots from the resource set to obtain the resource set The seventh resource in ; wherein, one time slot in the selection window corresponds to one or more time slots in the sensing window.
  • Step 902 When the first device determines that the number of resources included in the seventh resource is less than the number of the fifth proportion of the total resources in the selection window, the first device determines the transmission resource in the seventh resource.
  • the fifth proportion may be a value of 20%, 30%, 35%, 50%, etc., of course, may also be other values, which is not limited in this application.
  • the fifth ratio may be configured by other devices to the first device, or may be an initial configuration value of the first device itself, which is not limited in this application.
  • the physical layer of the first device reports the seventh resource to the MAC layer of the first device.
  • the standard protocol can be embodied as:
  • Condition 1 In step 2, the UE has no sensing result in the time slot corresponding to t_m ⁇ SL;
  • the UE shall exclude any candidate single-slot resource R x,y from the set S A if it meets all the following conditions:
  • Step 2 the UE has not monitored slot in Step 2.
  • condition c in step 6 would be met.
  • step 5 is the seventh resource.
  • the first device when the first device determines that the signal strength of the resource corresponding to the eighth resource in the seventh resource in the sensing window is greater than the fifth strength threshold, the first device excludes the eighth resource from the resource set, A ninth resource in the resource set is obtained, where the ninth resource is a resource other than the eighth resource in the seventh resource; the physical layer of the first device reports the ninth resource to the MAC layer of the first device.
  • step 7) is a modification of step 7) in the above R16, that is, when the number of resources excluded in step 5) is less than X*Mtotal, step 7) is not performed.
  • the standard protocol can be embodied as:
  • Condition 1 In step 2, the UE has no sensing result in the time slot corresponding to t_m ⁇ SL;
  • the UE shall exclude any candidate single-slot resource R x,y from the set S A if it meets all the following conditions:
  • Step 2 the UE has not monitored slot in Step 2.
  • condition c in step 6 would be met.
  • Step6 If the number of candidate single-slot resource remaining in the SA is smaller than X*Mtotal,continues with Step6,and report the result of Step 6 to higher layers.
  • step 6 is the ninth resource.
  • the first device determines the transmission resource in the seventh resource
  • the specific method may be: the first device determines the transmission resource in the ninth resource.
  • the first device when the first device determines that there is no sensing result in one or more time slots in the sensing window, the first device selects the resources in the time slot of the selection window corresponding to the one or more time slots. After being excluded from the resource set, when it is determined that the number of resources of the seventh resource in the resource set is less than the number of the fifth proportion of the total resources in the selection window, the transmission resource is determined in the first resource. When the number of resources is less than the number of the fifth proportion of the total resources in the selection window, transmission resources can also be determined, so as to avoid the problem that transmission resources cannot be obtained due to insufficient resources.
  • the first device is a UE
  • the UE supports DRX as an example for description.
  • two UEs, UE1 and UE2 communicate, and the two obtain DRX parameters through negotiation, and receive them in an active (active) state.
  • the core idea of this example may be: the more time slots in the selection window that have a sensing result in a time slot, the greater the probability that the resources in the time slot can be used, so the selection should be prioritized.
  • the resources included in the resource set also referred to as the resource pool to be selected
  • the resources are sequentially included into the resource set according to the priority of the time slot from high to low.
  • the specific process of determining the transmission resource may be as follows:
  • Step 1 UE-2 negotiates DRX parameters with other UEs, and other UEs may include UE-1 or a base station or a certain platform UE.
  • UE-2 negotiates DRX parameters with other UEs, and other UEs may include UE-1 or a base station or a certain platform UE.
  • UE-2 negotiates DRX parameters with other UEs, and other UEs may include UE-1 or a base station or a certain platform UE.
  • UE-2 negotiates DRX parameters with other UEs, and other UEs may include UE-1 or a base station or a certain platform UE.
  • the DRX parameter indicates the dormant time slot and the active time slot of the UE2, wherein, there is no sensing result on the dormant time slot, and there is a sensing result on the active time slot.
  • step 1 is an optional step.
  • Step 2 UE-2 senses the time slot occupancy state, that is, determines the sensing result of the sensing window. Specifically, in the selection window, some time slots have all sensing results, some time slots have sensing results, some time slots have no sensing results, and some time slots have no sensing results. Among them, UE-2 determines the selection window according to the transmission demand time n. Each time slot in the selection window has multiple time slots in the sensing window corresponding to it, and a time slot in the selection window is between the corresponding time slot in the sensing window. The interval is equal to the period. The value of the period may be configured by configuration information from multiple preset values.
  • the number of period values is N
  • the number of timeslots in a time slot in the selection window and its corresponding sensing window is N.
  • some time slots may have no sensing result due to DRX, and UE2 performs time slot priority division on the time slots in the selection window according to the number of time slots with sensing results.
  • the time slot priority of this time slot is the highest; when all cycles corresponding to a time slot in the selection window have no sensing results, the time slot priority of this time slot The lowest; when there are sensing results in part of the period corresponding to a timeslot in the selection window, the priority of the timeslot is defined according to the number of timeslots with sensing results. higher priority.
  • the time slot priority has only two items. If only the resources to be selected are included in the resource set within the highest time slot priority, it is used with the prior art. method is the same.
  • the period contains t1 and t2, and time slot 1 in the selection window has only the sensing on the time slot corresponding to t1.
  • slot 2 has both t1 and t2 sensing results, and slot 3 has no sensing results.
  • the time slot priority of time slot 2 is the highest priority
  • the time slot priority of time slot 3 is the lowest priority
  • the time slot priority of time slot 1 is higher than that of time slot 3 but lower than that of time slot 2 slot priority.
  • Step 3 UE-2 determines transmission resources in the selection window for transmission.
  • the method of the prior art can be used to screen the candidate resources;
  • the time slots with only partial sensing results and/or the time slots without sensing results need to be screened or included in the resource set, and the steps of including the resource set respectively include PHY layer operations and MAC layer operation.
  • one possibility is to adjust the number of resource sets according to the number of time slots of all sensing results or its ratio to the number of time slots in the selection window.
  • lower limit For example, if the time slots with all sensing results are less than F%, then reduce the lower limit of the number of resource sets to the number of resources in the selection window or H% of the total resources of the time slots with sensing results in the selection window, (F, H)
  • F, H A possible value is (30, 5); alternatively, if the time slots with all sensing results are less than Z%, the resources in the selection window are all included in the resource set, and random selection is used to determine the resources therein.
  • the resources are included into the resource set in turn.
  • the RSRP threshold can be adjusted (also i.e. RSRP threshold) or a range of slot priorities (i.e. slot priority threshold) to complement the resource set.
  • the set threshold value (i.e., the priority threshold value) is screened by the time slot priority, and the time slot whose time slot priority is higher than the threshold value is screened out with a signal strength lower than the RSRP threshold on the resource. If the resource is insufficient, the threshold value of the time slot priority is lowered, and the resources in the time slot with more time slot priorities are screened.
  • the threshold value of the time slot priority is lowered, and the resources in the time slot with more time slot priorities are screened.
  • the resources to be selected in the resource set are greater than a certain proportion (that is, the total number of resources in the selection window involved in the above embodiment).
  • a certain proportion that is, the total number of resources in the selection window involved in the above embodiment.
  • X resources are randomly selected and included in the resource set.
  • X resources are randomly selected and included in the resource set.
  • the PHY layer of UE2 can report the resources to be selected to the MAC layer with the priority of the time slot corresponding to the resource to be selected, and can report the priority of the time slot in the order of priority of the time slot. Specifically, reference may be made to the manners b1-b3 in the embodiment shown in FIG. 6 above.
  • the PHY layer may instruct the MAC in which time slots and the reported candidate resources to randomly select (that is, through the above-mentioned method through the The first indication information indicates), the beneficial effect of this approach is to exclude resources with high interference among resources with existing perception results.
  • the MAC layer randomly selects the reported resources to be selected, which fails to reflect the difference of the priority of the time slots.
  • the MAC layer preferentially selects the transmission resource from the candidate resource with high time slot priority.
  • the transmission resource is selected from candidate resources with low slot priority.
  • the MAC layer randomly selects from them;
  • a possible embodiment is that when the total number of resources to be selected that accumulate multiple timeslot priorities is greater than the number of required transmission resources, another possible embodiment is that according to the priority of the timeslots, the priority of each timeslot is sorted in sequence. The candidate resources are included in the required transmission resources.
  • the number of candidate resources with high time slot priority the number of required transmission resources, which is included in the required transmission resources, that is, the candidate resources are determined as the transmission resources;
  • the candidate resource with high time slot priority may refer to the candidate resource corresponding to at least one time slot priority with higher time slot priority.
  • Step 4 UE2 sends data to UE1. Specifically, based on the transmission resources determined in step 3, UE2 sends data to UE1 by using these transmission resources.
  • the period contains t1 and t2, the time slot 1 has only the sensing result of t1, the time slot 2 has both the sensing result of t1 and t2, and the time slot 3 has no sensing result.
  • the MAC layer can use RSRP1 to filter out 3 resources in time slot 2, if it is insufficient, and filter out 3 resources in time slot 1, but it is still insufficient, then Increase the value of RSRP1, further filter out 4 resources in time slot 2, and filter out 6 resources in time slot 2, so as to report; it is also possible that RSRP1 loops inside and the slot priority loops outside;
  • the MAC layer can only report the value of time slot 1 + time slot 2 that satisfies RSRP1, and specify time slot 3 as the time slot range for random transmission resource selection.
  • UE2 determines the transmission resource according to the time slot priority of each time slot in the selection window, so that the transmission resource that meets the requirements can be flexibly determined, Thus, the problem that the transmission requirement of UE2 cannot be met is avoided.
  • the communication apparatus 1000 may include a storage unit 1001 and a processing unit 1002 .
  • the storage unit 1001 is configured to store program instructions
  • the processing unit 1002 is configured to call the stored program instructions stored in the storage unit 1001 to control and manage the actions of the communication device 1000 .
  • the communication apparatus 1000 may further include a transceiver unit for receiving or sending data, etc., and the processing unit 1002 may further control the steps performed by the transceiver unit.
  • the communication apparatus 1000 may specifically be the first device in the foregoing embodiment, and the first device may be a terminal device, a processor in the terminal device, or a chip or a chip system, or a functional module. Wait.
  • the communication apparatus 1000 when configured to implement the function of the first device in the embodiment described in FIG. 6, it may specifically include:
  • the processing unit 1002 is configured to determine, according to the sensing result of the sensing window, the number of timeslots for which each time slot in the selection window has sensing results in the sensing window; and according to each time slot in the selection window The number of timeslots with sensing results in the sensing window, determine the timeslot priority of each timeslot in the selection window; then determine the transmission according to the timeslot priority of the timeslots in the selection window resource, wherein one time slot in the selection window corresponds to one or more time slots in the sensing window.
  • the priority of the time slot is positively correlated with the number of the time slot with the sensing result.
  • the processing unit 1002 when determining the transmission resource according to the time slot priority of the time slot in the selection window, is specifically configured to: determine the pending resource in the resource set according to the time slot priority of the time slot in the selection window. resources are selected, and the transmission resource is determined in the candidate resources.
  • the processing unit 1002 determines the candidate resource in the resource set according to the time slot priority of the time slot in the selection window
  • the processing unit 1002 is specifically configured to: give priority to the time slot
  • the resource to be selected is determined from the resources in the time slot with the highest priority of the time slot; wherein the first threshold is the The minimum value of the number of resources in the resource set; the time slot with the highest priority of the time slot is the first time slot in the selection window, and the first time slot is in all the time slots in the corresponding sensing window There are sensory results.
  • the processing unit 1002 determines the candidate resource in the resource set according to the time slot priority of the time slot in the selection window
  • the processing unit 1002 is specifically configured to: a time slot When the number of resources in the time slot with the highest priority is less than the first threshold, according to the time slot priority of the time slot, or according to the time slot priority of the time slot and the selection window in the sensing window
  • the signal strength of the corresponding resource in the resource set determines the resource to be selected; wherein, the first threshold is the minimum value of the number of resources in the resource set; the time slot with the highest priority of the time slot is the selection window
  • the first time slot in the first time slot has sensing results in all time slots in the corresponding sensing window.
  • the processing unit 1002 when determining the resource to be selected according to the time slot priority of the time slot, is specifically configured to: sequentially determine the selected resources according to the time slot corresponding to the time slot priority from high to low. Describe the resources to be selected.
  • the processing unit 1002 when determining the resource to be selected according to the time slot priority of the time slot, is specifically configured to: determine a plurality of resources whose time slot priority is greater than or equal to a first priority threshold a time slot, and the candidate resource is determined among the resources of the plurality of time slots.
  • the processing unit 1002 determines the resource to be selected according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window
  • the processing unit 1002 is specifically configured to: : determine a plurality of second time slots with a time slot priority greater than or equal to the second priority threshold, and determine a first resource among the resources of the plurality of second time slots, and any one of the first resources is in The signal strength of the corresponding resource in the sensing window is less than or equal to the first strength threshold; when the number of resources included in the first resource is less than the first threshold, it is determined that the priority of the time slot is greater than or equal to the third priority
  • a plurality of third time slots with a threshold value a second resource is determined in the resources of the plurality of third time slots, and the candidate resource is determined in the second resource, any one of the second resources
  • the signal strength of the resource corresponding to the resource in the sensing window is less than or equal to the first strength threshold; wherein, the third priority threshold is less than
  • the processing unit 1002 determines the resource to be selected according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window
  • the processing unit 1002 is specifically configured to: : determine a plurality of fourth time slots with a time slot priority greater than or equal to the fourth priority threshold, and determine a third resource among the resources of the plurality of fourth time slots, and any one of the third resources is in The signal strength of the corresponding resources in the sensing window is less than or equal to the second strength threshold; when the number of resources included in the third resource is greater than or equal to the number of the first proportion of the total resources in the selection window or the preset number. When the number is set, the third resource is the candidate resource;
  • a fourth resource is determined among the resources of the plurality of fourth time slots , the fourth resource is the resource to be selected, and the signal strength of the resource corresponding to any one of the fourth resources in the sensing window is less than or equal to the third strength threshold; or, determining the priority of the time slot A plurality of fifth time slots greater than or equal to the fifth priority threshold, a fifth resource is determined among the resources of the plurality of fifth time slots, the fifth resource is the candidate resource, and the fifth resource The signal strength of the resource corresponding to any one of the resources in the sensing window is less than or equal to the second strength threshold; wherein, the third strength threshold is greater than the second strength threshold, and the fifth priority threshold is less than the fourth priority threshold; the number of resources included in the fourth resource is greater than or equal to the number or the preset number of the first proportion of the total resources in the selection window, or the fifth resource The number of included resources is greater
  • the processing unit 1002 determines the resource to be selected according to the time slot priority of the time slot and the signal strength of the resource corresponding to the selection window in the sensing window
  • the processing unit 1002 is specifically configured to: : take the resource determined in the resources of multiple time slots whose time slot priority is greater than or equal to the sixth priority threshold as the first candidate resource; the first time slot priority or the next one or more time slot priorities from the first time slot priority
  • the second candidate resource is determined from the resources in the time slot of The signal strength of the first candidate resource is less than or equal to the fourth strength threshold; the first candidate resource and the second candidate resource are the candidate resources; the X is the number of resources included in the first candidate resource and the The difference between the first thresholds; the first slot priority is greater than or equal to the lowest slot priority in the sixth priority threshold.
  • the processing unit 1002 is further configured to: determine the first threshold and The ratio of the total number of resources in the selection window, or the ratio of the first threshold to the total number of resources in the time slot with sensing results in the selection window.
  • the processing unit 1002 is further configured to: report the resource to be selected and the time slot priority corresponding to the resource to be selected to the MAC layer through the physical layer.
  • the processing unit 1002 determines the transmission resource in the candidate resource, it is specifically configured to: determine the transmission resource according to the priority of the time slot corresponding to the candidate resource through the MAC layer from high to low .
  • the processing unit 1002 is further configured to: send the first indication information to the MAC layer through the physical layer , the first indication information instructs the MAC layer to determine the time slot range of the transmission resource.
  • the processing unit 1002 when the processing unit 1002 determines the transmission resource among the resources to be selected, the processing unit 1002 is specifically configured to: use the resource to be selected as the first part of the transmission resource; The second part of the transmission resource is determined in the time slots other than the sixth time slot in the time slot range, and the sixth time slot is the time slot where the candidate resource is located; wherein, the second part of the transmission resource The number of partial resources is the number of transmission resources minus the number of resources of the candidate resources.
  • the processing unit 1002 is further configured to: determine a DRX parameter, where the DRX parameter indicates a sleep time slot and an active time slot of the first device; No sensing result, there is sensing result on the active time slot.
  • the communication apparatus 1000 when configured to implement the function of the first device in the embodiment described in FIG. 9, it may specifically include:
  • the processing unit 1002 determines that there is no sensing result in one or more time slots in the sensing window, the resource in the time slot of the selection window corresponding to the one or more time slots is excluded from the resource set to obtain the resource The seventh resource in the set; when it is determined that the number of resources included in the first resource is less than the number of the fifth proportion of the total resources in the selection window, a transmission resource is determined in the first resource, wherein the A time slot in the selection window corresponds to one or more time slots in the sensing window.
  • the processing unit 1002 is further configured to: report the seventh resource to the MAC layer through the physical layer.
  • the processing unit 1002 is further configured to: when it is determined that the signal strength of the resource corresponding to the eighth resource in the seventh resource in the sensing window is greater than a fifth strength threshold, Excluding the eighth resource from the resource set to obtain a ninth resource in the resource set, where the ninth resource is a resource other than the eighth resource in the seventh resource; through the physical layer reporting the ninth resource to the MAC layer.
  • the processing unit 1002 when determining the transmission resource in the seventh resource, is specifically configured to: determine the transmission resource in the ninth resource.
  • each functional unit in the embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .
  • the communication apparatus 1100 may include a memory 1101 and a processor 1102 .
  • the communication apparatus 1100 may further include a transceiver 1103 .
  • the processor 1102 can control the transceiver 1103 to receive and transmit data and the like.
  • the processor 1102 may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
  • the processor 1102 may further include a hardware chip.
  • the above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (generic array logic, GAL) or any combination thereof.
  • the memory 1101, the processor 1102 and the transceiver 1103 are connected to each other.
  • the memory 1101, the processor 1102 and the transceiver 1103 are connected to each other through a bus 1104;
  • the bus 1104 may be a Peripheral Component Interconnect (PCI) bus or an extended industry standard Structure (Extended Industry Standard Architecture, EISA) bus, etc.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 11, but it does not mean that there is only one bus or one type of bus.
  • the memory 1101 is used to store programs and the like.
  • the program may include program code including computer operation instructions.
  • the memory 1101 may include RAM, and may also include non-volatile memory, such as one or more disk memories.
  • the processor 1102 executes the application program stored in the memory 1101 to realize the above-mentioned functions, thereby realizing the functions of the communication device 1100 .
  • the communication apparatus 1100 may be the first device in the foregoing embodiment.
  • the processor 1102 may implement the operations performed by the first device in the embodiment shown in FIG. 11 .
  • the transceiver 1103 may implement the transceiving operation (for example, the operation of transmitting data) performed by the first device in the embodiment shown in FIG. 11 .
  • the transceiving operation for example, the operation of transmitting data
  • the processor 1102 may implement the operations performed by the first device in the embodiment shown in FIG. 9 .
  • the transceiver 1103 may implement the operation of transmitting data based on the transmission resource after the first device in FIG. 9 determines the transmission resource.
  • the embodiments of the present application provide a communication system, and the communication system may include the first device and the like involved in the above embodiments.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the determination of the transmission resources provided by the above method embodiments method.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the method for determining transmission resources provided by the above method embodiments.
  • An embodiment of the present application further provides a chip, including a processor, which is coupled to a memory and configured to invoke a program in the memory so that the chip implements the method for determining transmission resources provided by the above method embodiments.
  • An embodiment of the present application further provides a chip, where the chip is coupled with a memory, and the chip is used to implement the method for determining transmission resources provided by the above method embodiments.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种传输资源的确定方法及装置,用以解决现有技术中资源集合中的资源较少,不能满足终端设备的传输需求的问题。方法为:第一设备根据感知窗口的感知结果,确定选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数;所述第一设备根据所述选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数,确定所述选择窗口中所述每个时隙的时隙优先级,并根据所述选择窗口中时隙的时隙优先级确定传输资源。这样可以灵活地确定满足需求的传输资源,从而避免不能满足第一设备的传输需求的问题。

Description

一种传输资源的确定方法及装置
相关申请的交叉引用
本申请要求在2020年11月24日提交中国专利局、申请号为202011327959.8、申请名称为“一种DRX场景下资源确定方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中;本申请要求在2021年01月15日提交中国专利局、申请号为202110053549.7、申请名称为“一种传输资源的确定方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种传输资源的确定方法及装置。
背景技术
随着通信技术的发展,在终端设备间通信中提出应用感知机制,即一个终端设备在确定有传输需求的时刻n后,可以进一步确定感知窗口(sensing window)和选择窗口(selection window)。选择窗口中的时隙与其在感知窗口中对应的时隙间的间隔为对应的周期,其中,周期可以为一个或者多个。具体地,终端设备通过在感知窗口的时隙上检测与该时隙间隔周期对应的选择窗口的时隙上的资源是否有预约传输,进一步筛选终端设备可用的资源,获得一个资源集合,以使终端设备在资源集合中选择传输需要的资源进行传输。
而目前,一种情况下,由于终端设备处于半双工工作状态,即同一时刻终端设备只能执行接收和发送两者之一。因此,当终端设备处于发送状态时,该发送状态所在的时隙,终端设备无法进行接收或感知,从而不能获得该时隙的感知结果,此时将选择窗口中与该发送时隙对应的时隙中的资源均视作不可用,不能纳入资源集合。
另一种情况下,由于终端设备支持非连续接收(discontinuous reception,DRX),当感知窗口中出现一个DRX休眠(sleep)时隙时,不能获得该时隙的感知结果,将选择窗口中与该sleep时隙对应的时隙中的资源均视作不可用,不能纳入资源集合。
目前,上述两种情况下均会造成资源集合中的资源较少,不能满足终端设备的传输需求,而导致终端设备传输失败。
发明内容
本申请提供一种传输资源的确定方法及装置,用以解决现有技术中资源集合中的资源较少,不能满足终端设备的传输需求的问题。
第一方面,本申请提供了一种传输资源的确定方法,该方法可以包括:第一设备根据感知窗口的感知结果,确定选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数,并根据所述选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数,确定所述选择窗口中所述每个时隙的时隙优先级;然后,所述第一设备根据所述选择窗口中时隙的时隙优先级确定传输资源,其中,所述选择窗口中的一个时隙对应所述感知窗口中的一个或多个时隙。
通过上述方法,所述第一设备根据所述选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数,确定所述选择窗口中所述每个时隙的时隙优先级后,根据所述选择窗口中时隙的时隙优先级确定传输资源,这样可以灵活地确定满足需求的传输资源,从而避免不能满足第一设备的传输需求的问题。
在一个可能的设计中,所述时隙优先级的高低与所述有感知结果的时隙的个数正相关。也即所述有感知结果的时隙的个数越多,时隙优先级越高。
在一个可能的设计中,所述第一设备根据所述选择窗口中时隙的时隙优先级确定传输资源,具体方法可以为:所述第一设备根据所述选择窗口中时隙的时隙优先级确定资源集合中的待选资源,并在所述待选资源中确定所述传输资源。这样所述第一设备基于所述选择窗口中时隙的时隙优先级确定所述待选资源可以比较灵活,以使可以使所述第一设备确定满足需求的所述传输资源。
在一个可能的设计中,所述第一设备根据所述选择窗口中时隙的时隙优先级确定所述资源集合中的所述待选资源,具体方法可以为:当时隙优先级最高的时隙内的资源的个数大于或者等于第一阈值时,所述第一设备在所述时隙优先级最高的时隙内的资源中确定所述待选资源;其中,所述第一阈值为所述资源集合中的资源个数的最小值;所述时隙优先级最高的时隙为所述选择窗口中的第一时隙,所述第一时隙在对应的所述感知窗口中所有时隙均有感知结果。这样所述第一设备从所述时隙优先级最高的时隙内的资源中确定所述待选资源,实现比较简单。
在一个可能的设计中,所述第一设备根据所述选择窗口中时隙的时隙优先级确定所述资源集合中的所述待选资源,具体方法可以为:当时隙优先级最高的时隙内的资源的个数小于第一阈值时,所述第一设备根据所述时隙的时隙优先级,或根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源;其中,所述第一阈值为所述资源集合中的资源个数的最小值;所述时隙优先级最高的时隙为所述选择窗口中的第一时隙,所述第一时隙在对应的所述感知窗口中所有时隙均有感知结果。
通过上述方法,所述第一设备可以结合所述时隙的时隙优先级,或所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度来灵活地确定所述待选资源,以满足第一设备的传输需求。
在一个可能的设计中,所述第一设备根据所述时隙的时隙优先级确定所述待选资源,具体方法可以为:所述第一设备按照时隙优先级从高到低对应的时隙中依次确定所述待选资源。这样所述第一设备可以确定出满足需求的所述待选资源,以满足第一设备的传输需求。
在一个可能的设计中,所述第一设备根据所述时隙的时隙优先级确定所述待选资源,具体方法可以为:所述第一设备确定时隙优先级大于或者等于第一优先级阈值的多个时隙,所述第一设备在所述多个时隙的资源中确定所述待选资源。这样所述第一设备可以确定出满足需求的所述待选资源,以满足第一设备的传输需求。
在一个可能的设计中,所述第一设备根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源,具体方法可以为:所述第一设备确定时隙优先级大于或者等于第二优先级阈值的多个第二时隙,所述第一设备在所述多个第二时隙的资源中确定第一资源,所述第一资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第一强度阈值;当所述第一资源包括的资源个数小于所述第一 阈值时,所述第一设备确定时隙优先级大于或者等于第三优先级阈值的多个第三时隙,在所述多个第三时隙的资源中确定第二资源,并在所述第二资源中确定所述待选资源,所述第二资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于所述第一强度阈值;其中,所述第三优先级阈值小于所述第二优先级阈值,所述第二资源包括的资源个数大于或者等于所述第一阈值。
通过上述方法,当所述第一设备在基于设定的所述第二优先级阈值来筛选待选资源的情况下,所述第一设备若筛选出来的第一资源的资源个数不足,则将优先级阈值从所述第二优先级阈值降低到所述第三优先级阈值,以从更多时隙优先级的时隙中筛选出更多的资源,以筛选出符合资源个数要求的第二资源,进而可以确定出满足需求的所述待选资源,以满足所述第一设备的传输需求。
在一个可能的设计中,所述第一设备根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源,具体方法可以为:所述第一设备确定时隙优先级大于或者等于第四优先级阈值的多个第四时隙,所述第一设备在所述多个第四时隙的资源中确定第三资源,所述第三资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第二强度阈值;当所述第三资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数时,所述第三资源为所述待选资源;当所述第三资源包括的资源个数小于所述选择窗口内总资源的第一占比的个数或者预设个数时,所述第一设备在所述多个第四时隙的资源中确定第四资源,所述第四资源为所述待选资源,所述第四资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第三强度阈值;或者,所述第一设备确定时隙优先级大于或者等于第五优先级阈值的多个第五时隙,所述第一设备在所述多个第五时隙的资源中确定第五资源,所述第五资源为所述待选资源,所述第五资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于所述第二强度阈值;其中,所述第三强度阈值大于所述第二强度阈值,所述第五优先级阈值小于所述第四优先级阈值;所述第四资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数,或者,所述第五资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数。
通过上述方法,通过调整强度阈值或者时隙优先级的优先级阈值可以得到满足需求的所述待选资源,从而可以满足所述第一设备的传输需求。
在一个可能的设计中,所述第一设备根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源,具体方法可以为:所述第一设备将在时隙优先级大于或者等于第六优先级阈值的多个时隙的资源中确定的资源作为第一待选资源;所述第一设备从第一时隙优先级的下一个或多个时隙优先级的时隙内的资源中确定第二待选资源,所述第二待选资源为第六资源中的X个资源,所述第六资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第四强度阈值;所述第一待选资源和所述第二待选资源为所述待选资源;所述X为所述第一待选资源包括的资源个数与所述第一阈值之间的差值;所述第一时隙优先级大于或者等于所述第六优先级阈值中的最低时隙优先级。
通过上述方法,所述第一设备可以灵活地确定出满足需求的所述待选资源,从而可以满足所述第一设备的传输需求。
在一个可能的设计中,所述第一设备根据所述选择窗口内有感知结果的时隙与所述选 择窗口的时隙总数的比值,确定所述第一阈值与所述选择窗口内的资源总数的比值,或者所述第一阈值与所述选择窗口内有感知结果的时隙的资源总数的比值。这样所述第一设备可以准确地所述第一阈值,以使实现根据所述第一阈值确定得到所述待选资源的具体方式。
在一个可能的设计中,所述第一设备的物理层向媒体接入控制(media access control,MAC)层上报所述待选资源以及所述待选资源对应的时隙优先级。这样后续所述第一设备可以的MAC可以根据所述待选资源对应的时隙优先级确定出所需的传输资源。
在一个可能的设计中,所述第一设备在所述待选资源中确定所述传输资源,具体方法可以为:所述第一设备的MAC层按照所述待选资源对应的时隙优先级从高到低确定所述传输资源。这样所述第一设备可以确定出满足传输需求的所述传输资源。
在一个可能的设计中,当所述待选资源的个数小于所述第一设备所需的传输资源个数时,所述第一设备的物理层向所述MAC层发送第一指示信息,所述第一指示信息指示所述MAC层确定所述传输资源的时隙范围。这样在所述待选资源个数不足时,可以使所述第一设备根据所述第一指示信息指示时隙范围进一步确定出更多的传输资源,以满足所述第一设备的传输需求。
在一个可能的设计中,所述第一设备在所述待选资源中确定所述传输资源,具体方法可以为:所述第一设备将所述待选资源作为所述传输资源的第一部分;所述第一设备在所述时隙范围除第六时隙以外的时隙中确定所述传输资源的第二部分,所述第六时隙为所述待选资源所在的时隙;其中,所述传输资源的第二部分的资源个数为所述传输资源个数减去所述待选资源的资源个数。这样在所述待选资源个数不足时,可以使所述第一设备根据所述第一指示信息指示时隙范围进一步确定出更多的传输资源,以满足所述第一设备的传输需求。
在一个可能的设计中,所述第一设备确定非连续接收DRX参数,所述DRX参数指示所述第一设备的休眠时隙与激活时隙;其中,所述休眠时隙上无感知结果,所述激活时隙上有感知结果。这样所述第一设备可以在所述激活时隙上感知所述感知结果。
第二方面,本申请提供了一种传输资源的确定方法,该方法可以包括:第一设备确定感知窗口中一个或多个时隙中没有感知结果时,将所述一个或多个时隙对应的选择窗口的时隙中的资源在资源集合中排除,得到所述资源集合中的第七资源;所述第一设备在确定所述第一资源包括的资源个数小于选择窗口中总资源的第五占比的个数时,在所述第一资源中确定传输资源;其中,所述选择窗口中的一个时隙对应所述感知窗口中的一个或多个时隙。
通过上述方法,所述第一设备确定感知窗口中一个或多个时隙中没有感知结果时,将所述一个或多个时隙对应的选择窗口的时隙中的资源在资源集合中排除后,确定得到所述资源集合中的第七资源的资源个数小于选择窗口中总资源的第五占比的个数时,在所述第一资源中确定传输资源,这样可以在即使资源个数小于选择窗口中总资源的第五占比的个数的情况下,也可以确定传输资源,避免因资源不足造成得不到传输资源的问题。
在一个可能的设计中,所述第一设备的物理层将所述第七资源上报给所述第一设备的MAC层。这样可以使所述第一设备的MAC确定出所需的传输资源。
在一个可能的设计中,所述第一设备确定所述第七资源中的第八资源在所述感知窗口中对应的资源的信号强度大于第五强度阈值时,将所述第八资源在所述资源集合中排除,得到所述资源集合中的第九资源,所述第九资源为所述第七资源中除所述第八资源以外的 资源;所述第一设备的物理层将所述第九资源上报给所述第一设备的MAC层。这样可以使所述第一设备的MAC确定出所需的传输资源。
在一个可能的设计中,所述第一设备在所述第七资源中确定传输资源,具体方法可以为:所述第一设备在所述第九资源中确定所述传输资源。这样所述第一设备可以确定出所需的传输资源。
第三方面,本申请还提供了一种通信装置,所述通信装置可以是第一设备,该通信装置具有实现上述第一方面或第一方面的各个可能的设计示例中第一设备的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中,所述通信装置的结构中包括存储单元和处理单元,可选的还可以包括收发单元,这些单元可以执行上述第一方面或第一方面的各个可能的设计示例中,或者第二方面或第二方面的各个可能的设计示例中第一设备的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
在一个可能的设计中,所述通信装置的结构中包括存储器和处理器,可选的还包括收发器,所述收发器可以用于收发数据,以及用于与通信系统中的其他设备进行通信交互,所述处理器被配置为支持所述通信装置执行上述第一方面或第一方面的各个可能的设计示例中,或者第二方面或第二方面的各个可能的设计示例中第一设备的相应的功能。所述存储器与所述处理器耦合,其保存所述通信装置必要的程序指令和数据。
第四方面,本申请实施例提供了一种通信系统,可以包括上述提及的第一设备等。
第五方面,本申请实施例提供的一种计算机可读存储介质,该计算机可读存储介质存储有程序指令,当程序指令在计算机上运行时,使得计算机执行本申请实施例第一方面及其任一可能的设计,或者第二方面及其任一可能的设计中所述的方法。示例性的,计算机可读存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于:计算机可读介质可以包括非瞬态计算机可读介质、随机存取存储器(random-access memory,RAM)、只读存储器(read-only memory,ROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)、CD-ROM或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。
第六方面,本申请实施例提供一种包括计算机程序代码或指令的计算机程序产品,当其在计算机上运行时,使得计算机实现上述第一方面或第一方面任一种可能的设计,或者第二方面及其任一可能的设计中所述的方法。
第七方面,本申请还提供了一种芯片,包括处理器,所述处理器与存储器耦合,用于读取并执行所述存储器中存储的程序指令,以使所述芯片实现上述第一方面或第一方面任一种可能的设计,或者第二方面及其任一可能的设计中所述的方法。
上述第三方面至第七方面中的各个方面以及各个方面可能达到的技术效果请参照上述针对第一方面或第二方面中的各种可能方案可以达到的技术效果说明,这里不再重复赘述。
附图说明
图1为本申请提供的一种通信系统的架构示意图;
图2为本申请提供的一种选择窗口在感知窗口中无感知结果的示意图;
图3为本申请提供的一种基于DRX的通信流程示意图;
图4为本申请提供的一种DRX示意图;
图5为本申请提供的一种选择窗口在感知窗口中无感知结果的示意图;
图6为本申请提供的一种传输资源的确定方法的流程图;
图7为本申请提供的一种选择窗口在感知窗口中有无感知结果的示意图;
图8为本申请提供的一种待选资源的筛选顺序的示意图;
图9为本申请提供的另一种传输资源的确定方法的流程图;
图10为本申请提供的一种通信装置的结构示意图;
图11为本申请提供的一种通信装置的结构图。
具体实施方式
下面将结合附图对本申请作进一步地详细描述。
本申请实施例提供一种传输资源的确定方法及装置,用以解决现有技术中资源集合中的资源较少,不能满足终端设备的传输需求的问题。其中,本申请所述方法和装置基于同一技术构思,由于方法及装置解决问题的原理相似,因此装置与方法的实施可以相互参见,重复之处不再赘述。
在本申请的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。
在本申请中的描述中,“至少一个(种)”是指一个(种)或者多个(种),多个(种)是指两个(种)或者两个(种)以上。
为了更加清晰地描述本申请实施例的技术方案,下面结合附图,对本申请实施例提供的传输资源的确定方法及装置进行详细说明。
图1示出了本申请实施例提供的传输资源的确定方法适用的一种可能的通信系统的架构,所述通信系统的架构中可以包括网络设备和至少两个终端设备,至少两个终端设备例如图1中的终端设备1和终端设备2等,终端设备1和终端设备2之间可以通过侧行链路(sidelink)传输数据。其中:
终端设备也可以称为用户设备(user equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、车辆用户设备、车载通信模块、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请中将具有无线收发功能的终端设备及可设置于前述终端设备的芯片统称为终端设备。
网络设备可以为具有无线收发功能的设备或可设置于该网络设备的芯片,该网络设备包括但不限于:基站(generation node B,gNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台 (base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(baseband unit,BBU),无线保真(wireless fidelity,WIFI)系统中的接入点(access point,AP)、无线中继节点、无线回传节点、传输点(transmission and reception point,TRP或者transmission point,TP)等,还可以为构成gNB或传输点的网络节点,如基带单元(BBU),或,分布式单元(distributed unit,DU)等。
在一些部署中,gNB可以包括集中式单元(centralized unit,CU)和DU。gNB还可以包括射频单元(radio unit,RU)。CU实现gNB的部分功能,DU实现gNB的部分功能,比如,CU实现无线资源控制(radio resource control,RRC),分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能,DU实现无线链路控制(radio link control,RLC)、媒体接入控制(media access control,MAC)和物理(physical,PHY)层的功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令或PHCP层信令,也可以认为是由DU发送的,或者,由DU+RU发送的。可以理解的是,网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外,CU可以划分为接入网RAN中的网络设备,也可以将CU划分为核心网CN中的网络设备,对此不作限定。
需要说明的是,图1所示的通信系统可以但不限于为第五代(5th Generation,5G)系统,如新一代无线接入技术(new radio access technology,NR),可选的,本申请实施例的方法还适用于未来的各种通信系统,例如6G系统或者其他通信网络等。目前,在终端设备间的通信中提出应用感知机制,即一个终端设备在确定有传输需求的时刻n后,可以进一步确定感知窗口和选择窗口,其中该终端设备的传输需求为终端设备需要发送数据等的需求。选择窗口中的时隙与其在感知窗口中对应的时隙间的间隔为对应的周期,其中,周期可以为一个或者多个,也即选择窗口中的一个时隙可以对应感知窗口中的一个或多个时隙。示例性地,周期的个数可以配置为1-99中的任一个或者任几个,或者还可以配置为100的整数倍等,本申请对此不作限定。具体地,终端设备通过在感知窗口的时隙上检测与该时隙间隔周期对应的选择窗口的时隙上的资源是否有预约传输,进一步筛选终端设备可用的资源,获得一个资源集合,以使终端设备在资源集合中选择传输需要的资源进行传输。
在一些实施例中,终端设备处于半双工工作状态,即同一时刻终端设备只能执行接收和发送两者之一。当终端设备处于发送状态时,该发送状态所在的时隙即发送(transmission,TX)时隙,终端设备无法进行接收或感知,从而不能获得该时隙的感知结果,进而不能确定对应的选择窗口的时隙上的资源是否有预约传输。此时将选择窗口中与该发送时隙对应的时隙中的资源均视作不可用,将其均排除出资源集合。例如,图2所示的示意图中,选择窗口中与感知窗口中TX时隙对应的时隙中的资源均不可用。
在另一些实施例中,终端设备支持DRX,可以使终端设备在没有数据传输或者数据量需求较小的时候,进入休眠状态,也即不接收状态,从而减少终端设备因解调下行信号带来的功耗。在网络设备和终端设备通信时,DRX的流程可以如图3所示。具体地,网络设备给终端设备配置DRX参数,DRX参数指示终端设备的休眠(sleep)时隙和激活(active)时隙;终端设备根据DRX参数确定什么时候进入休眠状态,什么时候进入监听或接收状态,从而使终端设备通过休眠状态节约功耗。此时,网络设备会按照如图4所示的DRX示意图,在终端设备处于DRX active状态时对终端设备进行下行数据或者下行控制信号 (downlink control information,DCI)等的发送,并在终端设备处于休眠状态时,不进行下行数据或下行控制信号等的发送。
当然当终端设备支持DRX时,两个终端设备之间通信时,一个终端设备也会在另一个终端设备处于激活状态时发送数据或信号等,在另一个终端设备处于休眠状态时不进行数据或信号等的发送。
在终端设备支持DRX的情况下,当感知窗口中出现一个DRX休眠(sleep)时隙时,终端设备不能获得该时隙的感知结果,同样不能确定对应的选择窗口的时隙上的资源是否有预约传输。此时,将选择窗口中与该sleep时隙对应的时隙中的资源均视作不可用,将其均排除出资源集合。例如图5所示的示意图中,选择窗口中与感知窗口中休眠时隙对应的时隙中的资源均不可用。
需要说明的是,图2和图5中是以选择窗口中的时隙与感知窗口中的时隙之间的周期配置了20毫秒(ms)到35ms中的8个取值为例进行说明,图中仅示出了周期20ms和35ms,其它6个周期未示出。因此在图2中选择窗口中与感知窗口中TX时隙对应的8个时隙中的资源均不可用,在图5中选择窗口中与感知窗口中休眠时隙对应的8个时隙中的资源均不可用。
上述两种实施例的情况下,均会造成资源集合中的资源较少,不能满足终端设备的传输需求。基于此,本申请提出一种传输资源的确定方法来解决上述问题。
实施例一
示例性地,本申请实施例提供的一种传输资源的确定方法,适用于图1所示的通信系统。参阅图6所示,该方法的具体流程可以包括:
步骤601:第一设备根据感知窗口的感知结果,确定选择窗口中每个时隙在该感知窗口中有感知结果的时隙的个数;其中,选择窗口中的一个时隙对应感知窗口中的一个或多个时隙。
其中,该第一设备可以是终端设备,也可以是终端设备中的芯片,本申请对此不作限定。
具体地,第一设备确定在时刻n有传输需求时,也即第一设备确定在时刻n需要发送数据时,根据时刻n确定对应的感知窗口和选择窗口。具体地,如图7所示,第一设备确定对应的选择窗口在时刻n之后,时延上限之前的时隙范围内,确定对应的感知窗口在时刻n之前。其中,感知窗口可以基于选择窗口确定,选择窗口内的时隙间隔预设的周期映射到时刻n之前的时隙,即为对应的感知窗口内的时隙。其中,选择窗口和感知窗口的具体位置可以由所述第一设备实现。示例性地,第一设备根据自己的需求在满足选择窗口在时刻n之后,时延上限之前的时隙范围内确定选择窗口的具体位置,在满足感知窗口在时刻n之前的范围内确定感知窗口的具体位置。
在一种可选的实施方式中,选择窗口中的时隙与感知窗口中的时隙之间的周期可以配置一个或多个取值,因此选择窗口中的一个时隙可以对应感知窗口中的一个或多个时隙。其中,选择窗口中的一个时隙对应的感知窗口中的时隙的个数与周期的取值的个数可以相同。需要说明的是,在实际中,当周期的取值为多个时,选择窗口中的一个时隙对应的感知窗口中的时隙的个数可以小于周期的取值的个数。
在一种示例中,当第一设备处于发送状态时,该发送状态所在的时隙(也即TX时隙)无感知结果。在另一种示例中,当第一设备支持DRX时,感知窗口中的DRX sleep时隙 内无感知结果。因此,选择窗口在感知窗口中有些时隙全部有感知结果,有些时隙部分时隙有感知结果,部分时隙无感知结果,有些时隙全部无感知结果。
例如,假设感知窗口中有5个时隙有感知结果,其他时隙由于是TX时隙或者是sleep时隙无感知结果,假设选择窗口中的时隙与感知窗口中的时隙之间的周期配置了t1和t2两个取值。如图7所示的示意图中,选择窗口中的时隙1在所述感知窗口中以周期t1对应的时隙上有感知结果,以周期t2对应的时隙上无感知结果,即时隙1在所述感知窗口中有感知结果的时隙的个数为1。选择窗口中的时隙2在感知窗口中以周期t1对应的时隙上有感知结果,以周期t2对应的时隙上也有感知结果,即时隙2在感知窗口中有感知结果的时隙的个数为2。选择窗口中的时隙3在感知窗口中以周期t1对应的时隙上无感知结果,以周期t2对应的时隙上也无感知结果,即时隙3在所述感知窗口中有感知结果的时隙的个数为0。
在一种可选的实施方式中,当第一设备支持DRX的情况下,在步骤701之前,第一设备可以确定DRX参数,该DRX参数可以指示第一设备的休眠时隙与激活时隙;其中,该休眠时隙上无感知结果,该激活时隙上有感知结果。
示例性地,第一设备确定DRX参数的方法可以为:第一设备确定网络设备为第一设备配置的DRX参数;或者第一设备与其他设备协商所述DRX参数,其他设备可以为终端设备或者网络设备或者终端设备中的芯片或者网络设备中的芯片等等。
步骤602:第一设备根据选择窗口中每个时隙在感知窗口中有感知结果的时隙的个数,确定选择窗口中每个时隙的时隙优先级。
具体地,时隙优先级的高低与有感知结果的时隙的个数正相关,也即有感知结果的时隙的个数越多,时隙优先级越高。
示例性地,仍以图7为例,选择窗口中的时隙1在感知窗口中有感知结果的时隙的个数为1,时隙2在感知窗口中有感知结果的时隙的个数为2,时隙3在感知窗口中有感知结果的时隙的个数为0,可以得出时隙2的时隙优先级最高,时隙3的时隙优先级最低,时隙1的时隙优先级高于时隙3的时隙优先级且低于时隙2的时隙优先级。
在一种可选的实施方式中,选择窗口中每个时隙的时隙优先级可以通过在感知窗口中有感知结果的时隙的个数来标识。例如,仍以图7为例,选择窗口中时隙1的时隙优先级用1标识,时隙2的时隙优先级用2标识,时隙3的时隙优先级用0标识。
在另一种可选的实施方式中,选择窗口中每个时隙的优先级可以通过数字来标识。一种可能的情况下,时隙优先级越高,时隙优先级对应的数字越小,例如,仍以图7为例,时隙优先级由高到低的时隙2、时隙1和时隙3的时隙优先级分别通过1、2、3来标识,或者通过1、3、5来表示,或者通过2、5、8来表示等等,应理解只要是从小到大的不同数字即可,本申请对此不作限定。另一种可能的情况下,时隙优先级越高,时隙优先级对应的数字越大,例如,仍以图7为例,时隙优先级由高到低的时隙2、时隙1和时隙3的时隙优先级分别通过3、2、1来标识,或者通过6、3、1来表示,或者通过7、4、2来表示等等,应理解只要是从大到小的不同数字即可,本申请对此不作限定。
当然,每个时隙的时隙优先级还可以通过其它方式标识,本申请对此不作限定。
步骤603:第一设备根据选择窗口中时隙的时隙优先级确定传输资源。
具体地,该传输资源可以为用于发送的资源。
在一种可选的实施方式中,第一设备根据选择窗口中时隙的时隙优先级确定传输资源, 具体方法可以为:第一设备根据选择窗口中时隙的时隙优先级确定资源集合中的待选资源;之后,第一设备在所述待选资源中确定传输资源。
其中,该资源集合可以是由多个待选资源组成,多个待选资源用于第一设备选择所需的传输资源。
在一种示例中,第一设备根据选择窗口中时隙的时隙优先级确定资源集合中的待选资源,具体方法可以为:当时隙优先级最高的时隙内的资源的个数大于或者等于第一阈值时,第一设备在时隙优先级最高的时隙内的资源中确定待选资源;其中,该第一阈值为资源集合中的资源个数的最小值;时隙优先级最高的时隙为选择窗口中的第一时隙,第一时隙在对应的感知窗口中所有时隙均有感知结果,或者第一时隙在对应的感知窗口中所有时隙中部分时隙有感知结果。但是需要说明的是,第一时隙是选择窗口中在对应的感知窗口中有感知结果的时隙的个数最多的时隙。例如,仍以图7为例,第一时隙为选择窗口中的时隙2。
其中,第一设备在时隙优先级最高的时隙内的资源中确定待选资源的方法可以采用现有方法。例如,第一设备可以基于时隙优先级最高的时隙内的资源在感知窗口中对应的资源的信号强度来筛选待选资源,具体地,第一设备在时隙优先级最高的时隙内的资源中筛选出来的待选资源中,任一个资源在感知窗口中对应的资源的信号强度小于或等于预设的强度阈值。
可选的,在本申请中涉及的信号强度可以但不限于是参考信号接收功率(reference signal received power,RSRP)等。
在另一种示例中,第一设备根据选择窗口中时隙的时隙优先级确定资源集合中的待选资源,具体方法可以为:当时隙优先级最高的时隙内的资源的个数小于第一阈值时,第一设备根据时隙的时隙优先级,或根据时隙的时隙优先级以及选择窗口在感知窗口中对应的资源的信号强度确定待选资源。时隙优先级最高的时隙仍为选择窗口中的第一时隙,具体可以参见上述描述。
在一种可选的实施方式中,第一设备根据时隙的时隙优先级,或根据时隙的时隙优先级以及选择窗口在感知窗口中对应的资源的信号强度确定待选资源时,具体可以包括以下五种方法:
方法a1、第一设备根据时隙的时隙优先级确定待选资源,具体方法可以为:第一设备按照时隙优先级从高到低对应的时隙中依次确定待选资源。
例如,第一设备先从时隙优先级最高的时隙中确定一些待选资源,然后继续从时隙优先级次高的时隙中确定一些待选资源,如果前面确定的待选资源的个数仍小于第一阈值时,继续从下一级的时隙优先级的时隙中继续确定一些待选资源,直至最终确定的所有待选资源的个数大于或者等于第一阈值为止。
需要说明的是,第一设备在每个时隙优先级中确定一些待选资源时,仍可以采用现有方法。例如,第一设备可以基于每个时隙优先级的时隙内的资源在感知窗口中对应的资源的信号强度来筛选待选资源。其中,第一设备筛选出来的待选资源中的任一个资源在感知窗口中对应的资源的信号强度小于或等于预设的强度阈值。
方法a2、第一设备根据时隙的时隙优先级确定待选资源,具体方法可以为:第一设备确定时隙优先级大于或者等于第一优先级阈值的多个时隙,第一设备在该多个时隙的资源中确定待选资源。
需要说明的是,第一设备在该多个时隙的资源中确定待选资源的方法也可以采用现有的方法,具体可以参见上述相类似的描述,此处不再详细描述。
具体地,时隙优先级大于或者等于第一优先级阈值的多个时隙,表示时隙优先级大于或者等于第一优先级等级的多个时隙,第一优先级阈值可以对应一个优先级等级。例如,仍以图7为例,若当第一优先级阈值对应的优先级等级是时隙1对应的优先级时,一些实施例中,在时隙2、时隙1和时隙3的时隙优先级分别通过时隙优先级3、时隙优先级2和时隙优先级1来标识的情况下,时隙优先级大于或者等于第一优先级阈值的多个时隙即为时隙优先级的等级高于或等于时隙优先级2的多个时隙,即为时隙优先级3和时隙优先级2对应的时隙2和时隙1。另一些实施例中,在时隙2、时隙1和时隙3的时隙优先级分别通过时隙优先级1、时隙优先级2和时隙优先级3来标识的情况下,时隙优先级大于或者等于第一优先级阈值的多个时隙即为时隙优先级的等级高于或等于时隙优先级2的多个时隙,即为时隙优先级1和时隙优先级2对应的时隙2和时隙1。
方法a3、第一设备根据时隙的时隙优先级和选择窗口在感知窗口中对应的资源的信号强度确定待选资源,具体方法可以为:
第一设备确定时隙优先级大于或者等于第二优先级阈值的多个第二时隙,第一设备在多个第二时隙的资源中确定第一资源,第一资源中的任一个资源在感知窗口中对应的资源的信号强度小于或等于第一强度阈值;
当第一资源包括的资源个数小于第一阈值时,第一设备确定时隙优先级大于或者等于第三优先级阈值的多个第三时隙,在多个第三时隙的资源中确定第二资源,并在第二资源中确定待选资源,第二资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第一强度阈值;
其中,第三优先级阈值小于第二优先级阈值,第二资源包括的资源个数大于或者等于第一阈值。
简单来说,在方法a3中主要是:当第一设备在基于设定的第二优先级阈值来筛选待选资源的情况下,第一设备若筛选出来的第一资源的资源个数不足,则将优先级阈值从第二优先级阈值降低到第三优先级阈值,以从更多时隙优先级的时隙中筛选出更多的资源,以筛选出符合资源个数要求的第二资源。
需要说明的是,在方式a3中,时隙优先级大于或者等于第二优先级阈值的多个第二时隙,以及时隙优先级大于或者等于第三优先级阈值的多个第三时隙的原理,与上述方法a2中时隙优先级大于或者等于第一优先级阈值的多个时隙的原理类似,均表示时隙优先级大于或者等于一个预设的优先级等级的时隙,具体可以参见方法a2中的描述,此处不再详细描述。
其中,第三优先级阈值小于第二优先级阈值,是指第三优先级阈值对应的第三优先级等级低于第二优先级阈值对应的第二优先级等级。例如,仍以图7为例,第三优先级等级可以是时隙3对应的优先级,第二优先级等级可以是时隙1对应的优先级,明显时隙3的优先级低于时隙1的优先级,则表明第三优先级等级低于第二优先级等级,也即第三优先级阈值小于第二优先级阈值。例如,在时隙2、时隙1和时隙3的时隙优先级分别通过时隙优先级3、时隙优先级2和时隙优先级1来标识的情况下,第三优先级阈值小于第二优先级阈值则说明时隙优先级1对应的优先级等级小于时隙优先级2对应的优先级等级;又例如,在时隙2、时隙1和时隙3的时隙优先级分别通过时隙优先级1、时隙优先级2和 时隙优先级3来标识的情况下,第三优先级阈值小于第二优先级阈值则说明时隙优先级3对应的优先级等级小于时隙优先级2对应的优先级等级。
方法a4、第一设备根据时隙的时隙优先级和选择窗口在感知窗口中对应的资源的信号强度确定待选资源,具体方法可以为:
第一设备确定时隙优先级大于或者等于第四优先级阈值的多个第四时隙,第一设备在多个第四时隙的资源中确定第三资源,第三资源中的任一个资源在感知窗口中对应的资源的信号强度小于或等于第二强度阈值;
当第三资源包括的资源个数大于或等于选择窗口内总资源的第一占比(例如10%等等)的个数或者预设个数时,第三资源为待选资源;
当第三资源包括的资源个数小于选择窗口内总资源的第一占比的个数或者预设个数时,第一设备在多个第四时隙的资源中确定第四资源,第四资源为待选资源,第四资源中的任一个资源在感知窗口中对应的资源的信号强度小于或等于第三强度阈值;或者,第一设备确定时隙优先级大于或者等于第五优先级阈值的多个第五时隙,第一设备在多个第五时隙的资源中确定第五资源,第五资源为待选资源,第五资源中的任一个资源在感知窗口中对应的资源的信号强度小于或等于第二强度阈值;
其中,第三强度阈值大于第二强度阈值,第五优先级阈值小于第四优先级阈值;第四资源包括的资源个数大于或等于选择窗口内总资源的第一占比的个数或者预设个数,或者,第五资源包括的资源个数大于或等于选择窗口内总资源的第一占比的个数或者预设个数。
需要说明的是,在方式a4中,时隙优先级大于或者等于第四优先级阈值的多个第四时隙,以及时隙优先级大于或者等于第五优先级阈值的多个第五时隙的原理,与上述方法a3中时隙优先级大于或者等于第二优先级阈值的多个第二时隙,时隙优先级大于或者等于第三优先级阈值的多个第三时隙的原理,以及上述方法a2中时隙优先级大于或者等于第一优先级阈值的多个时隙的原理类似,均表示时隙优先级大于或者等于一个预设的优先级等级的时隙,具体可以参见方法a2和a3中的描述,此处不再详细描述。
同理,第五优先级阈值小于第四优先级阈值原理与上述方法a3中第三优先级阈值小于第二优先级阈值原理相同,可以互相参见,此处不再详细描述。
方法a5、第一设备根据时隙的时隙优先级和选择窗口在感知窗口中对应的资源的信号强度确定待选资源,具体方法可以为:
第一设备将在时隙优先级大于或者等于第六优先级阈值的多个时隙的资源中确定的资源作为第一待选资源;
第一设备从第一时隙优先级的下一个或多个时隙优先级的时隙内的资源中确定第二待选资源,第二待选资源为第六资源中的X个资源,第六资源中的任一个资源在感知窗口中对应的资源的信号强度小于或等于第四强度阈值;
第一待选资源和第二待选资源为待选资源;X为第一待选资源包括的资源个数与第一阈值之间的差值;第一时隙优先级大于或者等于第六优先级阈值中的最低时隙优先级。
具体地,上述X个资源可以是第一设备在第六资源中随机选择的X个资源。
需要说明的是,本申请中涉及的多个优先级阈值可以是第一设备根据需求自己设置的,本申请对此不作限定。
在一种可选的实施方式中,第一设备可以根据选择窗口内有感知结果的时隙与选择窗口的时隙总数的比值,确定第一阈值与选择窗口内的资源总数的比值,或者第一阈值与选 择窗口内有感知结果的时隙的资源总数的比值。
示例性地,当选择窗口内有感知结果的时隙与选择窗口的时隙总数的比值大于或者等于第二占比时,第一阈值与选择窗口内的资源总数的比值,或者与选择窗口内有感知结果的时隙的资源总数的比值可以为第三占比;当选择窗口内有感知结果的时隙与选择窗口的时隙总数的比值小于第二占比时,第一阈值与选择窗口内的资源总数的比值,或者与选择窗口内有感知结果的时隙的资源总数的比值可以为第四占比;其中,第三占比大于第四占比。
也就是说,第一设备可以在选择窗口内有感知结果的时隙与选择窗口的时隙总数的比值小于一定占比时,降低第一阈值与选择窗口内的资源总数的比值,或者与选择窗口内有感知结果的时隙的资源总数的比值。
示例性地,第二占比为30%的情况下,第四占比可以为5%。当然,第二占比和第四占比根据实际需求还可以有其它取值,本申请对此不作限定。
示例性地,第三占比可以为20%、30%、35%、50%等等的取值,当然还可以为根据实际需求预设的其他取值,本申请对此不作限定。
需要说明的是,上述涉及的第一占比、第二占比、第三占比和第四占比的取值仅仅是示例,不作为对本申请的限定。可选的,上述四个占比可以是其他设备为第一设备预先配置的,也可以是第一设备自身的初始配置值等等,本申请对次不作限定。
在一种可选的实施方式中,当选择窗口内有感知结果的时隙与选择窗口的时隙总数的比值小于一定占比时,第一设备可以将选择窗口中的资源均作为待选资源,并在其中随机选择传输资源。
具体地,上述涉及的第一设备确定待选资源的过程,可以通过第一设备的物理层(physical layer,PHY)实现。进一步地,第一设备在待选资源中确定传输资源时,可以通过第一设备的媒体接入控制(media access control,MAC)层实现。
在一种可选的实施方式中,第一设备的物理层在确定了待选资源后,第一设备的物理层向MAC层上报待选资源以及待选资源对应的时隙优先级。
示例性地,第一设备的物理层向MAC层上报待选资源以及待选资源对应的时隙优先级时,具体可以有以下三种方式:
方式b1、第一设备的物理层按照待选资源对应的时隙优先级由高到低依次向MAC层上报待选资源。
方式b2、第一设备的物理层按照时隙优先级由高到低的顺序,依次向MAC层上报每个时隙优先级对应的资源。例如,先上报时隙优先级最高的待选资源,然后上报下一级时隙优先级的资源,以此类推,直至将所有待选资源以及对应的时隙优先级的上报完成。
方式b3、第一设备的物理层将待选资源一起上报给MAC层,同时将待选资源对应的时隙优先级一起上报。
进一步地,一种示例中,第一设备在待选资源中确定传输资源时,具体方法可以为:第一设备的MAC层按照待选资源对应的时隙优先级从高到低确定传输资源。
另一种示例中,第一设备在待选资源中确定传输资源时,具体方法可以为:第一设备的MAC层确定待选资源对应的时隙优先级中由高到低的前N个时隙优先级对应的资源,当前N个时隙优先级对应的资源大于第一设备所需的传输资源个数时,第一设备的MAC层在前N个时隙优先级对应的资源中随机选择传输资源。其中,N为大于或者等于1的正 整数。
在又一种可选的实施方式中,当待选资源的个数小于第一设备所需的传输资源个数时,第一设备的物理层还向MAC层发送第一指示信息,第一指示信息指示MAC层确定传输资源的时隙范围。
进一步地,第一设备在待选资源中确定传输资源时,具体方法可以为:第一设备将待选资源作为传输资源的第一部分;第一设备在时隙范围除第六时隙以外的时隙中确定传输资源的第二部分,第六时隙为待选资源所在的时隙;其中,传输资源的第二部分的资源个数为传输资源个数减去待选资源的资源个数。
示例性地,第一设备在时隙范围除第六时隙以外的时隙中确定传输资源的第二部分时,具体方法可以为:第一设备的MAC层可以在时隙范围除第六时隙以外的时隙中随机选择传输资源的第二部分。
例如,仍以图7所示的情况为例,选择窗口中的时隙1在感知窗口中有感知结果的时隙的个数为1,选择窗口中的时隙2在感知窗口中有感知结果的时隙的个数为2,选择窗口中的时隙3在感知窗口中有感知结果的时隙的个数为0。假设第一设备的物理层需要确定至少10个(即第一阈值假设为10)待选资源上报给MAC层时,一个可能的示例可以如下:
当时隙1和时隙2的资源总个数大于或等于10时,此时,第一设备的物理层先基于RSRP1在时隙2的资源中筛选出3个待选资源,由于待选资源不足10个,继续在时隙1的资源中筛选,若只筛选出了3个待选资源,待选资源总数仍不足10个,则提高RSRP1的值到RSRP2重新选择。具体地,若第一设备的物理层基于RSRP2在时隙2的资源中筛选出4个待选资源,在时隙1的资源中筛选出6个资源,此时筛选出来的待选资源为10个,从而将筛选出来的10个待选资源上报给MAC层。当然,还可以有其它的筛选方法,此处不再一一列举。
当时隙1和时隙2的资源总数小于10时,第一设备的物理层可以在时隙1和时隙2的资源中确定满足RSRP1的资源作为待选资源并上报给MAC层,同时上报第一指示信息来指示确定传输资源的时隙范围为时隙1、时隙2和时隙3,其中,时隙3作为随机资源选择的时隙。在一种可选的实施方式中,第一设备的物理层在上报了从时隙1和时隙2中筛选出来的待选资源时,可以同时上报一个指示来指示MAC层在时隙3中随机选择其他传输资源。
综上,第一设备的物理层在选择窗口中选择待选资源时,可以优先在时隙2中筛选,当待选资源不足时,可以继续在时隙1中筛选,若还不足,则继续在时隙3中筛选,具体可以参考图8所示。
在一种具体的实施方式中,在第一设备通过上述任一方法确定了传输资源后,第一设备可以执行如图6中所示的步骤604:第一设备基于传输资源向第二设备传输数据。
其中,第一设备基于传输资源向第二设备传输数据,具体可以为:第一设备基于传输资源向第二设备发送数据。
示例性地,第二设备可以为终端设备,或者为终端设备中的芯片,或者为网络设备,或者为网络设备中的芯片等等。在本申请中,可以接收第一设备发送的数据的设备均可以作为第二设备,本申请对此不作限定。
采用本申请实施例提供的传输资源的确定方法,第一设备根据选择窗口中每个时隙在 感知窗口中有感知结果的时隙的个数,确定选择窗口中每个时隙的时隙优先级后,根据选择窗口中时隙的时隙优先级确定传输资源,这样可以灵活地确定满足需求的传输资源,从而避免不能满足第一设备的传输需求的问题。
实施例二
目前,当前R16标准中,UE处于半双工状态时,筛选待选资源的步骤可以如下:
1)待选资源的定义,一个待选资源是一个单一时隙、频域可覆盖1个或多个连续的子信道,并且时域资源在[n+T 1,n+T 2]之间;而[n+T 1,n+T 2]间资源总数为M_total。T1的选择由UE实现,T1的范围在[0,
Figure PCTCN2021132158-appb-000001
],其中
Figure PCTCN2021132158-appb-000002
以时隙为单位,在表8.1.4-2里面定义,μ SL是SL BWP的子载波间隔。如T 2min比剩余数据时延余量要小,T2由UE实现,且T2在[T 2min,剩余数据时延余量],否则T2设定为剩余延时量。
2)感知窗口的定义,位于[n-T 0,
Figure PCTCN2021132158-appb-000003
],UE在这个范围内进行感知。其中T 0在上面定义,
Figure PCTCN2021132158-appb-000004
在表8.1.4-1中定义,其中μ SL是SL BWP的子载波间隔配置。UE感知除了发生自己的传输之外的可属于感知窗口内的资源池的时隙。UE将基于这些时隙中解码的PSCCH和在这些时隙中测量的RSRP执行以下步骤中的行为。
3)门限值Th(pi,pj)设定为sl-ThresPSSCH-RSRP-List-r16里面的第i个值,i=p i+(p j-1)*8。
4)集合S A初始化为全部单时隙资源。
5)UE把全部满足下列条件的资源Rxy排除在S A外,条件1:步骤2中UE在t_m^SL对应的时隙没有感知结果;条件2:对于sl-ResourceReservePeriodList-r16和在时隙
Figure PCTCN2021132158-appb-000005
中接收的假设SCI格式1-A所允许的全部周期值,其中资源保留字段设置为该周期值并指示资源池中所有资源的子信道,Rxy所在的时隙满足步骤6c)。
6)UE把全部满足下列条件的资源Rxy排除在S A外:a)UE在时隙
Figure PCTCN2021132158-appb-000006
监听到SCI格式1-A,获取该资源上的优先级P rsvp_RX和周期prio RX,参见c[6,TS 38.213]中的16.4节;b)根据第8.4.2.1节对接收到的SCI格式1-A执行的RSRP测量结果高于Th(prio RX,prio TX);c)在时隙
Figure PCTCN2021132158-appb-000007
中监听的资源对应
Figure PCTCN2021132158-appb-000008
之后1个或多个周期0内对应的资源,即在时隙
Figure PCTCN2021132158-appb-000009
中监听到SCI格式1-A,或者当且仅当接收到SCI格式1-A中存在资源保留字段时,才假定在时隙
Figure PCTCN2021132158-appb-000010
根据第8.1.5节确定与q=1,2,…,Q和j=0,1,…,C resel-1的
Figure PCTCN2021132158-appb-000011
重叠的资源块和时隙的集合。这里P′ rsvp_RX是根据条款8.1.7转换为逻辑时隙单位的P rsvp_RX,如果P rsvp_RX<T scal且n′-m≤P′ rsvp_RX,则
Figure PCTCN2021132158-appb-000012
如果时隙n属于集合
Figure PCTCN2021132158-appb-000013
Figure PCTCN2021132158-appb-000014
否则时隙
Figure PCTCN2021132158-appb-000015
为属于集合n的时隙n之后的第一个时隙
Figure PCTCN2021132158-appb-000016
否则,Q=1。T scal设置为转换为ms单位的选择窗口大小T2。
7)如果S A中资源小于X*Mtotal,则提升Th(pi,pj)3dB,并继续步骤4。
UE上报S A中资源。
在当前R16的上述过程中,当有1或多个Tx时隙导致选择窗口中被步骤5)排除后的资源数小于X*Mtotal时,则会进入无限循环,而且无论步骤7)如何提升Th(pi,pj),均无法达成步骤7)的要求,导致无法确定传输资源。
基于上述问题,本申请还提出了一种传输资源的确定方法,来打破现有可能存在的无限循环,以保证可以确定出传输资源。
示例性地,本申请实施例提供的一种传输资源的确定方法,适用于图1所示的通信系统。参阅图9所示,该方法的具体流程可以包括:
步骤901:第一设备确定感知窗口中一个或多个时隙中没有感知结果时,将该一个或多个时隙对应的选择窗口的时隙中的资源在资源集合中排除,得到该资源集合中的第七资源;其中,选择窗口中的一个时隙对应该感知窗口中的一个或多个时隙。
步骤902:第一设备在确定第七资源包括的资源个数小于选择窗口中总资源的第五占比的个数时,在第七资源中确定传输资源。其中,第五占比可以是20%、30%、35%、50%等等的取值,当然还可以为其他取值,本申请对此不作限定。可选的,第五占比可以是其他设备配置给第一设备的,也可以是第一设备自身的初始配置值,本申请对此不作限定。
在一种可选的实施方式中,该第一设备的物理层将第七资源上报给第一设备的MAC层。
即:上述R16中当步骤5)剩余的资源不足X*Mtotal时,把剩余的资源上报,无需步骤6)筛选。具体地,标准协议可以体现为:
5)UE把全部满足下列条件的资源Rxy排除在S A外,条件1:步骤2中UE在t_m^SL对应的时隙没有感知结果;条件2:对于sl-ResourceReservePeriodList-r16和在时隙
Figure PCTCN2021132158-appb-000017
中接收的假设SCI格式1-A所允许的全部周期值,其中资源保留字段设置为该周期值并指示资源池中所有资源的子信道,Rxy所在的时隙满足步骤6),如果SA中剩余的候选单时隙资源的数量小于X*Mtotal,则报告步骤5的结果。
具体的,上述步骤在标准中可以体现为如下英文所示:
5)The UE shall exclude any candidate single-slot resource R x,y from the set S A if it meets all the following conditions:
-the UE has not monitored slot
Figure PCTCN2021132158-appb-000018
in Step 2.
-for any periodicity value allowed by the higher layer parameter sl-ResourceReservePeriodList-r16and a hypothetical SCI format 1-A received in slot
Figure PCTCN2021132158-appb-000019
with"Resource reservation period"field set to that periodicity value and indicating all subchannels of the resource pool in this slot,condition c in step 6would be met.
If the number of candidate single-slot resource remaining in the SA is smaller than X*Mtotal,report the result of Step 5 to higher layers.
此时步骤5的结果即为该第七资源。
在另一种可选的实施方式中,第一设备确定第七资源中的第八资源在感知窗口中对应的资源的信号强度大于第五强度阈值时,将第八资源在资源集合中排除,得到该资源集合中的第九资源,该第九资源为第七资源中除第八资源以外的资源;第一设备的物理层将第 九资源上报给第一设备的MAC层。
该实施方式即为对上述R16中步骤7)的修改,即当步骤5)排除后的资源数不足X*Mtotal时,不进行步骤7)。具体地,标准协议可以体现为:
5)UE把全部满足下列条件的资源Rxy排除在S A外,条件1:步骤2中UE在t_m^SL对应的时隙没有感知结果;条件2:对于sl-ResourceReservePeriodList-r16和在时隙
Figure PCTCN2021132158-appb-000020
中接收的假设SCI格式1-A所允许的全部周期值,其中资源保留字段设置为该周期值并指示资源池中所有资源的子信道,Rxy所在的时隙满足步骤6),如果SA中剩余的候选单时隙资源数量小于X*Mtotal,则继续执行步骤6,并报告步骤6的结果。
具体的,上述步骤在标准中可以体现为如下英文所示:
5)The UE shall exclude any candidate single-slot resource R x,y from the set S A if it meets all the following conditions:
-the UE has not monitored slot
Figure PCTCN2021132158-appb-000021
in Step 2.
-for any periodicity value allowed by the higher layer parameter sl-ResourceReservePeriodList-r16and a hypothetical SCI format 1-A received in slot
Figure PCTCN2021132158-appb-000022
with"Resource reservation period"field set to that periodicity value and indicating all subchannels of the resource pool in this slot,condition c in step 6 would be met.
If the number of candidate single-slot resource remaining in the SA is smaller than X*Mtotal,continues with Step6,and report the result of Step 6 to higher layers.
此时步骤6的结果即为该第九资源。
进一步地,在该实施方式中,第一设备在第七资源中确定传输资源,具体方法可以为:第一设备在第九资源中确定传输资源。
采用本申请实施例提供的传输资源的确定方法,第一设备确定感知窗口中一个或多个时隙中没有感知结果时,将该一个或多个时隙对应的选择窗口的时隙中的资源在资源集合中排除后,确定得到该资源集合中的第七资源的资源个数小于选择窗口中总资源的第五占比的个数时,在第一资源中确定传输资源,这样可以在即使资源个数小于选择窗口中总资源的第五占比的个数的情况下,也可以确定传输资源,避免因资源不足造成得不到传输资源的问题。
基于以上实施例,以具体的示例对传输资源的确定方法进行详细说明。在以下的示例中,以第一设备为UE,UE支持DRX为例进行说明。在该示例中,UE 1和UE 2两个UE进行通信,两者通过协商获取DRX参数,并在激活(active)状态下进行接收。该示例的核心思想可以为:选择窗口中一个时隙有感知结果的时隙越多,该时隙内资源可使用的概率越大,所以更应该优先选择。当资源集合(也可以称为待选资源池)中纳入资源不足时,根据时隙优先级从高到低,依次纳入资源进入所述资源集合。
在一种具体的示例中,UE2需要发送数据时,确定传输资源的具体过程可以如下:
步骤1:UE-2和其他UE协商DRX参数,其他UE可能包括UE-1或者基站或者某个平台UE。具体的协商步骤可以参考现有的Uu口DRX机制,协商的信令细节本申请不再详细描述。
其中,所述DRX参数指示所述UE2的休眠时隙与激活时隙,其中,所述休眠时隙上 无感知结果,所述激活时隙上有感知结果。
其中步骤1为可选的步骤。
步骤2:UE-2感知时隙占用状态,也即确定感知窗口的感知结果。具体地,在选择窗口中有些时隙有全部感知结果、有些时隙有部分时隙有感知结果有部分时隙无感知结果、有些时隙无感知结果。其中,UE-2根据传输需求时刻n,确定选择窗口,选择窗口中每个时隙均有多个感知窗口内的时隙与其对应,选择窗口中一个时隙与其在感知窗口中对应时隙间的间隔等于周期。周期的取值可以是从多个预设值中由配置信息配置的,例如周期取值的个数为N,选择窗口中一个时隙与其对应的感知窗口中时隙个数就是N。在这N个时隙中,有些时隙可能因为DRX没有感知结果,UE2根据有感知结果的时隙个数,对选择窗口中的时隙进行时隙优先级划分。选择窗口中一个时隙对应的全部周期均有感知结果时,该时隙的时隙优先级最高;选择窗口中一个时隙对应的全部周期都没有感知结果时,该时隙的时隙优先级最低;选择窗口中一个时隙对应的周期中部分有感知结果时,根据有感知结果时隙的个数定义该时隙的时隙优先级高低,依据有感知结果的个数越多,时隙优先级越高。
一种具体的示例中,当上述周期仅有一个周期值时,时隙优先级仅有两项,若仅在最高时隙优先级内进行待选资源纳入资源集合时,则与现有技术使用的方法相同。
一种具体的示例中,如图7所示(仅参考感知窗口中一些时隙为TX时隙时),周期含有t1和t2,选择窗口中时隙1仅有t1对应的时隙上的感知结果,时隙2既有t1也有t2的感知结果,时隙3没感知结果。此时,时隙2的时隙优先级为最高优先级,时隙3的时隙优先级为最低优先级,时隙1的时隙优先级高于时隙3但低于时隙2的时隙优先级。
步骤3:UE-2在选择窗口中确定传输资源进行传输。
对于最高时隙优先级内的资源,如果其资源个数满足资源集合下限(也即上述实施例涉及的第一阈值)要求时,使用现有技术的方法就可以筛选待选资源;而如果其资源个数小于资源集合数量下限要求时,需要对仅有部分感知结果的时隙和/或没有感知结果的时隙进行资源筛选或者纳入资源集合,而纳入资源集合的步骤分别包含PHY层操作和MAC层操作。
其中,在进行全部感知结果的时隙与资源集合数量下限的比较时,一种可能性,根据全部感知结果的时隙个数或其与选择窗口的时隙个数的比值,调整资源集合数量下限。例如,如果有全部感知结果的时隙少于F%,则降低资源集合数量下限到选择窗口内资源数量或选择窗口内有感知结果的时隙的资源总数的H%,(F,H)的一种可能取值为(30,5);又或者,如果有全部感知结果的时隙少于Z%,则选择窗口中资源均纳入资源集合,并使用随机选择在其中确定资源。
步骤3.1)PHY层操作
当全部感知结果的时隙内资源数量小于待选资源池下限时,根据时隙优先级从高到低,依次纳入资源进入资源集合,在筛选具体资源是否纳入资源集合时,可调整RSRP门限(也即RSRP阈值)或者时隙优先级的范围(即时隙优先级阈值)来补足资源集合。
一种实施方式中,以时隙优先级筛选设定门限值(即优先级阈值),在时隙优先级高于门限值的时隙中筛选出该资源上信号强度低于RSRP门限的资源,如资源数量不足,降低时隙优先级的门限值,以纳入更多时隙优先级的时隙内资源进行筛选。具体地,该实施方式具体可以参见上述图6所示的实施例中方法a3中的相关描述。
另一种实施方式中,当资源集合中加入一些时隙优先级内满足RSRP门限要求的资源后,资源集合内的待选资源大于一定比例(也即上述实施例涉及的所述选择窗口内总资源的第一占比的个数)或个数(也即上述实施例涉及的预设个数)时,不再纳入更多资源到资源集合,否则以降低时隙优先级门限或提高RSRP门限的方式减少资源集合中排除的资源。具体地,该实施方式具体可以参见上述图6所示的实施例中方法a4中的相关描述。
又一种实施例中,当资源集合中纳入某一些时隙优先级的资源后,资源集合内仍缺少X个资源时,从次一等的时隙优先级内满足RSRP门限要求的资源中,随机选择X个资源,纳入资源集合。具体地,该实施方式具体可以参见上述图6所示的实施例中方法a5中的相关描述。
在通过上述实施方式筛选出资源集合中的待选资源后,UE2的PHY层可以向MAC层上报待选资源时携带待选资源对应的时隙优先级,并可以按照时隙优先级高低顺序上报。具体地,可以参见上述图6所示的实施例中方式b1-b3。
在一种可能的示例中,当资源集合中待选资源不足时,PHY层可以指示MAC在哪些时隙范围内和上报的待选资源中进行随机选择(也即通过上述实施例中涉及的通过第一指示信息进行指示),这种做法的有益效果是排除已有感知结果的资源中干扰高的资源。
步骤3.2)MAC层操作
目前,在现有技术的方法中,MAC层是从上报的待选资源中进行随机选择,未能体现时隙优先级的区别。
在该示例中,当PHY层上报资源集合中待选资源携带了待选资源对应的时隙优先级时,MAC层优先从时隙优先级高的待选资源中选择传输资源,如不足,再从时隙优先级低的待选资源中选择传输资源。具体的:
当时隙优先级高的待选资源个数>所需传输资源数,则MAC层从中进行随机选择;
一种可能的实施例是当累加多个时隙优先级的待选资源总数大于所需传输资源数,另一种可能的实施例是依照时隙优先级高低,依次在各时隙优先级中的待选资源纳入所需传输资源。
当时隙优先级高的待选资源个数=所需传输资源数,纳入所需传输资源,即将所述待选资源确定为所述传输资源;
当时隙优先级高的待选资源个数<所需传输资源数,把上述待选资源纳入传输资源,再从下一个时隙优先级中进行传输资源选择。
其中,时隙优先级高的待选资源可以是指时隙优先级较高的至少一个时隙优先级对应的待选资源。
步骤4:UE2向UE1发送数据。具体地,UE2基于步骤3中确定的传输资源,UE2使用这些传输资源向UE1发送数据。
在一种具体的示例中,如图8所示,周期含有t1和t2,时隙1仅有t1的感知结果,时隙2既有t1也有t2的感知结果,时隙3没感知结果。举例:若按照筛选比例,需要筛选出至少10个待选资源进行上报。
当时隙1+时隙2的资源数大于或等于10时,此时,MAC层可以使用RSRP1在时隙2筛选出3个资源,不足,在时隙1筛选出3个资源,仍不足,则提高RSRP1的值,进一步在时隙2筛选出4个资源,在时隙2筛选出6个资源,从而上报;也可能RSRP1在内循环,时隙优先级在外循环;
当时隙1+时隙2的资源数小于10时,MAC层可以仅上报时隙1+时隙2中满足RSRP1的值,并指明时隙3作为随机传输资源选择的时隙范围。
通过上述示例,UE2根据选择窗口中所述每个时隙的时隙优先级后,根据所述选择窗口中时隙的时隙优先级确定传输资源,这样可以灵活地确定满足需求的传输资源,从而避免不能满足UE2的传输需求的问题。
基于以上实施例,本申请实施例还提供了一种通信装置,参阅图10所示,通信装置1000可以包括存储单元1001和处理单元1002。其中,所述存储单元1001用于存储程序指令,所述处理单元1002用于调用所述存储单元1001存储的所述存储程序指令对所述通信装置1000的动作进行控制管理。可选的,所述通信装置1000还可以包括收发单元,用于接收或发送数据等,所述处理单元1002还可以控制所述收发单元执行的步骤。
示例性地,该通信装置1000具体可以是上述实施例中的第一设备,所述第一设备可以是终端设备、所述终端设备中的处理器,或者芯片或者芯片系统,或者是一个功能模块等。
在一个实施例中,所述通信装置1000用于实现上述图6所述的实施例中第一设备的功能时,具体可以包括:
所述处理单元1002,用于根据感知窗口的感知结果,确定选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数;并根据所述选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数,确定所述选择窗口中所述每个时隙的时隙优先级;然后根据所述选择窗口中时隙的时隙优先级确定传输资源,其中,所述选择窗口中的一个时隙对应所述感知窗口中的一个或多个时隙。
在一种可选的实施方式中,所述时隙优先级的高低与所述有感知结果的时隙的个数正相关。
具体地,所述处理单元1002在根据所述选择窗口中时隙的时隙优先级确定传输资源时,具体用于:根据所述选择窗口中时隙的时隙优先级确定资源集合中的待选资源,并在所述待选资源中确定所述传输资源。
在一种可选的实施方式中,所述处理单元1002在根据所述选择窗口中时隙的时隙优先级确定所述资源集合中的所述待选资源时,具体用于:当时隙优先级最高的时隙内的资源的个数大于或者等于第一阈值时,在所述时隙优先级最高的时隙内的资源中确定所述待选资源;其中,所述第一阈值为所述资源集合中的资源个数的最小值;所述时隙优先级最高的时隙为所述选择窗口中的第一时隙,所述第一时隙在对应的所述感知窗口中所有时隙均有感知结果。
在另一种可选的实施方式中,所述处理单元1002在根据所述选择窗口中时隙的时隙优先级确定所述资源集合中的所述待选资源时,具体用于:当时隙优先级最高的时隙内的资源的个数小于第一阈值时,根据所述时隙的时隙优先级,或根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源;其中,所述第一阈值为所述资源集合中的资源个数的最小值;所述时隙优先级最高的时隙为所述选择窗口中的第一时隙,所述第一时隙在对应的所述感知窗口中所有时隙均有感知结果。
一种示例中,所述处理单元1002在根据所述时隙的时隙优先级确定所述待选资源时,具体用于:按照时隙优先级从高到低对应的时隙中依次确定所述待选资源。
另一种示例中,所述处理单元1002在根据所述时隙的时隙优先级确定所述待选资源 时,具体用于:确定时隙优先级大于或者等于第一优先级阈值的多个时隙,在所述多个时隙的资源中确定所述待选资源。
又一种示例中,所述处理单元1002在根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源时,具体用于:确定时隙优先级大于或者等于第二优先级阈值的多个第二时隙,在所述多个第二时隙的资源中确定第一资源,所述第一资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第一强度阈值;当所述第一资源包括的资源个数小于所述第一阈值时,确定时隙优先级大于或者等于第三优先级阈值的多个第三时隙,在所述多个第三时隙的资源中确定第二资源,并在所述第二资源中确定所述待选资源,所述第二资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于所述第一强度阈值;其中,所述第三优先级阈值小于所述第二优先级阈值,所述第二资源包括的资源个数大于或者等于所述第一阈值。
又一种示例中,所述处理单元1002在根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源时,具体用于:确定时隙优先级大于或者等于第四优先级阈值的多个第四时隙,在所述多个第四时隙的资源中确定第三资源,所述第三资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第二强度阈值;当所述第三资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数时,所述第三资源为所述待选资源;
当所述第三资源包括的资源个数小于所述选择窗口内总资源的第一占比的个数或者预设个数时,在所述多个第四时隙的资源中确定第四资源,所述第四资源为所述待选资源,所述第四资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第三强度阈值;或者,确定时隙优先级大于或者等于第五优先级阈值的多个第五时隙,在所述多个第五时隙的资源中确定第五资源,所述第五资源为所述待选资源,所述第五资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于所述第二强度阈值;其中,所述第三强度阈值大于所述第二强度阈值,所述第五优先级阈值小于所述第四优先级阈值;所述第四资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数,或者,所述第五资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数。
又一种示例中,所述处理单元1002在根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源时,具体用于:将在时隙优先级大于或者等于第六优先级阈值的多个时隙的资源中确定的资源作为第一待选资源;从第一时隙优先级的下一个或多个时隙优先级的时隙内的资源中确定第二待选资源,所述第二待选资源为第六资源中的X个资源,所述第六资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第四强度阈值;所述第一待选资源和所述第二待选资源为所述待选资源;所述X为所述第一待选资源包括的资源个数与所述第一阈值之间的差值;所述第一时隙优先级大于或者等于所述第六优先级阈值中的最低时隙优先级。
在一种可选的实施方式中,所述处理单元1002还用于:根据所述选择窗口内有感知结果的时隙与所述选择窗口的时隙总数的比值,确定所述第一阈值与所述选择窗口内的资源总数的比值,或者所述第一阈值与所述选择窗口内有感知结果的时隙的资源总数的比值。
在一种具体的实施方式中,所述处理单元1002还用于:通过物理层向MAC层上报所述待选资源以及所述待选资源对应的时隙优先级。
进一步地,所述处理单元1002在所述待选资源中确定所述传输资源时,具体用于:通过MAC层按照所述待选资源对应的时隙优先级从高到低确定所述传输资源。
可选的,当所述待选资源的个数小于所述第一设备所需的传输资源个数时,所述处理单元1002还用于:通过物理层向所述MAC层发送第一指示信息,所述第一指示信息指示所述MAC层确定所述传输资源的时隙范围。
在一种示例性的实施方式中,所述处理单元1002在所述待选资源中确定所述传输资源时,具体用于:将所述待选资源作为所述传输资源的第一部分;在所述时隙范围除第六时隙以外的时隙中确定所述传输资源的第二部分,所述第六时隙为所述待选资源所在的时隙;其中,所述传输资源的第二部分的资源个数为所述传输资源个数减去所述待选资源的资源个数。
在一种可选的实施方式中,所述处理单元1002还用于:确定DRX参数,所述DRX参数指示所述第一设备的休眠时隙与激活时隙;其中,所述休眠时隙上无感知结果,所述激活时隙上有感知结果。
在一个实施例中,所述通信装置1000用于实现上述图9所述的实施例中第一设备的功能时,具体可以包括:
所述处理单元1002确定感知窗口中一个或多个时隙中没有感知结果时,将所述一个或多个时隙对应的选择窗口的时隙中的资源在资源集合中排除,得到所述资源集合中的第七资源;在确定所述第一资源包括的资源个数小于选择窗口中总资源的第五占比的个数时,在所述第一资源中确定传输资源,其中,所述选择窗口中的一个时隙对应所述感知窗口中的一个或多个时隙。
在一种可选的实施方式中,所述处理单元1002还用于:通过物理层将所述第七资源上报给MAC层。
在另一种可选的实施方式中,所述处理单元1002还用于:确定所述第七资源中的第八资源在所述感知窗口中对应的资源的信号强度大于第五强度阈值时,将所述第八资源在所述资源集合中排除,得到所述资源集合中的第九资源,所述第九资源为所述第七资源中除所述第八资源以外的资源;通过物理层将所述第九资源上报给MAC层。
示例性地,所述处理单元1002在所述第七资源中确定传输资源时,具体用于:在所述第九资源中确定所述传输资源。
需要说明的是,本申请实施例中对单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。在本申请的实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或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中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
基于以上实施例,本申请实施例还提供了一种通信装置,参阅图11所示,通信装置1100可以包括存储器1101和处理器1102。可选的,所述通信装置1100中还可以包括收发器1103。其中,所述处理器1102可以控制所述收发器1103接收和发送数据等。
具体地,所述处理器1102可以是中央处理器(central processing unit,CPU),网络处理器(network processor,NP)或者CPU和NP的组合。所述处理器1102还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit,ASIC),可编程逻辑器件(programmable logic device,PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device,CPLD),现场可编程逻辑门阵列(field-programmable gate array,FPGA),通用阵列逻辑(generic array logic,GAL)或其任意组合。
其中,所述存储器1101、所述处理器1102和所述收发器1103之间相互连接。可选的,所述存储器1101、所述处理器1102和所述收发器1103通过总线1104相互连接;所述总线1104可以是外设部件互连标准(Peripheral Component Interconnect,PCI)总线或扩展工业标准结构(Extended Industry Standard Architecture,EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图11中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
在一种可选的实施方式中,所述存储器1101,用于存放程序等。具体地,程序可以包括程序代码,该程序代码包括计算机操作指令。所述存储器1101可能包括RAM,也可能还包括非易失性存储器(non-volatile memory),例如一个或多个磁盘存储器。所述处理器1102执行所述存储器1101所存放的应用程序,实现上述功能,从而实现通信装置1100的功能。
示例性地,该通信装置1100可以是上述实施例中的第一设备。
在一个实施例中,所述通信装置1100在实现图11所示的实施例中第一设备的功能时处理器1102可以实现图11所示的实施例中由第一设备执行的操作。具体的相关具体描述可以参见上述图11所示的实施例中的相关描述,此处不再详细介绍。在一种可选的实施方式中,所述收发器1103可以实现图11所示的实施例中的由第一设备执行的收发操作(例如传输数据的操作),具体可以参见图中涉及的相关描述。
在另一个实施例中,所述通信装置1100在实现图9所示的实施例中第一设备的功能时处理器1102可以实现图9所示的实施例中由第一设备执行的操作。具体的相关具体描述可以参见上述图9所示的实施例中的相关描述,此处不再详细介绍。在一种可选的实施方式中,所述收发器1103可以实现图9中第一设备确定传输资源后,基于所述传输资源传输数据的操作。
基于以上实施例,本申请实施例提供了一种通信系统,该通信系统可以包括上述实施例涉及的第一设备等。
本申请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用于存储计算机程序,该计算机程序被计算机执行时,所述计算机可以实现上述方法实施例提供的传输资源的确定方法。
本申请实施例还提供一种计算机程序产品,所述计算机程序产品用于存储计算机程序,该计算机程序被计算机执行时,所述计算机可以实现上述方法实施例提供的传输资源的确定方法。
本申请实施例还提供一种芯片,包括处理器,所述处理器与存储器耦合,用于调用所述存储器中的程序使得所述芯片实现上述方法实施例提供的传输资源的确定方法。
本申请实施例还提供一种芯片,所述芯片与存储器耦合,所述芯片用于实现上述方法实施例提供的传输资源的确定方法。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的范围。这样,倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (20)

  1. 一种传输资源的确定方法,其特征在于,包括:
    第一设备根据感知窗口的感知结果,确定选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数;其中,所述选择窗口中的一个时隙对应所述感知窗口中的一个或多个时隙;
    所述第一设备根据所述选择窗口中每个时隙在所述感知窗口中有感知结果的时隙的个数,确定所述选择窗口中所述每个时隙的时隙优先级;
    所述第一设备根据所述选择窗口中时隙的时隙优先级确定传输资源。
  2. 如权利要求1所述的方法,其特征在于,所述时隙优先级的高低与所述有感知结果的时隙的个数正相关。
  3. 如权利要求1或2所述的方法,其特征在于,所述第一设备根据所述选择窗口中时隙的时隙优先级确定传输资源,包括:
    所述第一设备根据所述选择窗口中时隙的时隙优先级确定资源集合中的待选资源;
    所述第一设备在所述待选资源中确定所述传输资源。
  4. 如权利要求3所述的方法,其特征在于,所述第一设备根据所述选择窗口中时隙的时隙优先级确定所述资源集合中的所述待选资源,包括:
    当时隙优先级最高的时隙内的资源的个数大于或者等于第一阈值时,所述第一设备在所述时隙优先级最高的时隙内的资源中确定所述待选资源;
    其中,所述第一阈值为所述资源集合中的资源个数的最小值;所述时隙优先级最高的时隙为所述选择窗口中的第一时隙,所述第一时隙在对应的所述感知窗口中所有时隙均有感知结果。
  5. 如权利要求3所述的方法,其特征在于,所述第一设备根据所述选择窗口中时隙的时隙优先级确定所述资源集合中的所述待选资源,包括:
    当时隙优先级最高的时隙内的资源的个数小于第一阈值时,所述第一设备根据所述时隙的时隙优先级,或根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源;
    其中,所述第一阈值为所述资源集合中的资源个数的最小值;所述时隙优先级最高的时隙为所述选择窗口中的第一时隙,所述第一时隙在对应的所述感知窗口中所有时隙均有感知结果。
  6. 如权利要求5所述的方法,其特征在于,所述第一设备根据所述时隙的时隙优先级确定所述待选资源,包括:
    所述第一设备按照时隙优先级从高到低对应的时隙中依次确定所述待选资源。
  7. 如权利要求5所述的方法,其特征在于,所述第一设备根据所述时隙的时隙优先级确定所述待选资源,包括:
    所述第一设备确定时隙优先级大于或者等于第一优先级阈值的多个时隙,所述第一设备在所述多个时隙的资源中确定所述待选资源。
  8. 如权利要求5所述的方法,其特征在于,所述第一设备根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源,包括:
    所述第一设备确定时隙优先级大于或者等于第二优先级阈值的多个第二时隙,所述第 一设备在所述多个第二时隙的资源中确定第一资源,所述第一资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第一强度阈值;
    当所述第一资源包括的资源个数小于所述第一阈值时,所述第一设备确定时隙优先级大于或者等于第三优先级阈值的多个第三时隙,在所述多个第三时隙的资源中确定第二资源,并在所述第二资源中确定所述待选资源,所述第二资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于所述第一强度阈值;
    其中,所述第三优先级阈值小于所述第二优先级阈值,所述第二资源包括的资源个数大于或者等于所述第一阈值。
  9. 如权利要求5所述的方法,其特征在于,所述第一设备根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源,包括:
    所述第一设备确定时隙优先级大于或者等于第四优先级阈值的多个第四时隙,所述第一设备在所述多个第四时隙的资源中确定第三资源,所述第三资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第二强度阈值;
    当所述第三资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数时,所述第三资源为所述待选资源;
    当所述第三资源包括的资源个数小于所述选择窗口内总资源的第一占比的个数或者预设个数时,所述第一设备在所述多个第四时隙的资源中确定第四资源,所述第四资源为所述待选资源,所述第四资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第三强度阈值;或者,所述第一设备确定时隙优先级大于或者等于第五优先级阈值的多个第五时隙,所述第一设备在所述多个第五时隙的资源中确定第五资源,所述第五资源为所述待选资源,所述第五资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于所述第二强度阈值;
    其中,所述第三强度阈值大于所述第二强度阈值,所述第五优先级阈值小于所述第四优先级阈值;所述第四资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数,或者,所述第五资源包括的资源个数大于或等于所述选择窗口内总资源的第一占比的个数或者预设个数。
  10. 如权利要求5所述的方法,其特征在于,所述第一设备根据所述时隙的时隙优先级和所述选择窗口在所述感知窗口中对应的资源的信号强度确定所述待选资源,包括:
    所述第一设备将在时隙优先级大于或者等于第六优先级阈值的多个时隙的资源中确定的资源作为第一待选资源;
    所述第一设备从第一时隙优先级的下一个或多个时隙优先级的时隙内的资源中确定第二待选资源,所述第二待选资源为第六资源中的X个资源,所述第六资源中的任一个资源在所述感知窗口中对应的资源的信号强度小于或等于第四强度阈值;
    所述第一待选资源和所述第二待选资源为所述待选资源;所述X为所述第一待选资源包括的资源个数与所述第一阈值之间的差值;所述第一时隙优先级大于或者等于所述第六优先级阈值中的最低时隙优先级。
  11. 如权利要求4-10任一项所述的方法,其特征在于,所述方法还包括:
    所述第一设备根据所述选择窗口内有感知结果的时隙与所述选择窗口的时隙总数的比值,确定所述第一阈值与所述选择窗口内的资源总数的比值,或者所述第一阈值与所述选择窗口内有感知结果的时隙的资源总数的比值。
  12. 如权利要求4-11任一项所述的方法,其特征在于,所述方法还包括:
    所述第一设备的物理层向媒体接入控制MAC层上报所述待选资源以及所述待选资源对应的时隙优先级。
  13. 如权利要求12所述的方法,其特征在于,所述第一设备在所述待选资源中确定所述传输资源,包括:
    所述第一设备的MAC层按照所述待选资源对应的时隙优先级从高到低确定所述传输资源。
  14. 如权利要求12所述的方法,其特征在于,当所述待选资源的个数小于所述第一设备所需的传输资源个数时,所述方法还包括:
    所述第一设备的物理层向所述MAC层发送第一指示信息,所述第一指示信息指示所述MAC层确定所述传输资源的时隙范围。
  15. 如权利要求14所述的方法,其特征在于,所述第一设备在所述待选资源中确定所述传输资源,包括:
    所述第一设备将所述待选资源作为所述传输资源的第一部分;
    所述第一设备在所述时隙范围除第六时隙以外的时隙中确定所述传输资源的第二部分,所述第六时隙为所述待选资源所在的时隙;
    其中,所述传输资源的第二部分的资源个数为所述传输资源个数减去所述待选资源的资源个数。
  16. 如权利要求1-15任一项所述的方法,其特征在于,所述方法还包括:
    所述第一设备确定非连续接收DRX参数,所述DRX参数指示所述第一设备的休眠时隙与激活时隙;其中,所述休眠时隙上无感知结果,所述激活时隙上有感知结果。
  17. 一种第一设备,其特征在于,包括存储器和处理器,其中:
    所述存储器用于存储计算机指令;
    所述处理器与存储器耦合,用于调用所述存储器中的计算机指令使得所述第一设备执行如权利要求1-16任一项所述的方法。
  18. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有计算机可执行指令,所述计算机可执行指令在被所述计算机调用时用于使所述计算机执行上述权利要求1-16中任一项所述的方法。
  19. 一种包含指令的计算机程序产品,其特征在于,当所述计算机程序产品在计算机上运行时,使得所述计算机如执行权利要求1-16中任一项所述的方法。
  20. 一种芯片,其特征在于,所述芯片与存储器耦合,用于读取并执行所述存储器中存储的程序指令,以实现如权利要求1-16中任一项所述的方法。
PCT/CN2021/132158 2020-11-24 2021-11-22 一种传输资源的确定方法及装置 WO2022111420A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202011327959.8 2020-11-24
CN202011327959 2020-11-24
CN202110053549.7A CN114554602A (zh) 2020-11-24 2021-01-15 一种传输资源的确定方法及装置
CN202110053549.7 2021-01-15

Publications (1)

Publication Number Publication Date
WO2022111420A1 true WO2022111420A1 (zh) 2022-06-02

Family

ID=81668632

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/132158 WO2022111420A1 (zh) 2020-11-24 2021-11-22 一种传输资源的确定方法及装置

Country Status (2)

Country Link
CN (1) CN114554602A (zh)
WO (1) WO2022111420A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111225446A (zh) * 2020-01-17 2020-06-02 北京邮电大学 一种车与车通信的资源调配方法及装置
CN111294942A (zh) * 2019-03-29 2020-06-16 展讯半导体(南京)有限公司 感知窗口长度的确定、发送方法及装置、存储介质、终端、基站
CN111447682A (zh) * 2019-01-17 2020-07-24 电信科学技术研究院有限公司 一种业务数据传输方法、装置及通信节点

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111447682A (zh) * 2019-01-17 2020-07-24 电信科学技术研究院有限公司 一种业务数据传输方法、装置及通信节点
CN111294942A (zh) * 2019-03-29 2020-06-16 展讯半导体(南京)有限公司 感知窗口长度的确定、发送方法及装置、存储介质、终端、基站
CN111225446A (zh) * 2020-01-17 2020-06-02 北京邮电大学 一种车与车通信的资源调配方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "On Resource Allocation for NR V2X Mode 2", 3GPP DRAFT; R1-1910471, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 8 October 2019 (2019-10-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051789277 *

Also Published As

Publication number Publication date
CN114554602A (zh) 2022-05-27

Similar Documents

Publication Publication Date Title
CN110463271B (zh) 用于改变无线通信系统中的无线路径的方法和设备
KR102412727B1 (ko) 신호의 송수신 방법 및 장치
US20210297994A1 (en) Transmission resource determining method and apparatus
CN113676298B (zh) 多链路通信方法及相关装置
US20210352762A1 (en) Dynamic packet duplication convergence protocol configuration
CN109802821A (zh) 用户设备及其资源感测及选择方法
US11102803B2 (en) Apparatus and method for uplink scheduling in wireless communication system
US11363635B2 (en) Apparatus and method for extremely high throughput (EHT) medium reservation
US10091782B2 (en) Data communication method, station, and system
CN111787616B (zh) 一种上行信息传输方法及装置
US20220053515A1 (en) Communication method and apparatus
KR20200048636A (ko) 무선 통신 시스템에서 상향링크 전송을 위한 장치 및 방법
WO2022077523A1 (zh) 信道拥塞参数确定方法及装置
WO2022111420A1 (zh) 一种传输资源的确定方法及装置
WO2018137188A1 (zh) 一种用于覆盖增强的资源配置方法及装置
CN109565698A (zh) 基于非授权载波的上行调度方法和装置
WO2022141582A1 (zh) 无线通信的方法和装置
EP4138475A1 (en) Method, apparatus and system for determining resource
CN114503467B (zh) 一种数据传输方法以及装置
WO2021056366A1 (zh) 信息传输方法及装置
CN116326009A (zh) 边链路资源选择方法以及装置
CN112243296A (zh) 辅小区激活方法及装置
WO2022147771A1 (zh) 资源调度的确定方法、装置及存储介质
WO2023155586A1 (zh) 侧行链路信道接入方法及通信装置
WO2024094073A1 (zh) 确定候选传输资源的方法和相关装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21896921

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21896921

Country of ref document: EP

Kind code of ref document: A1