WO2022183930A1

WO2022183930A1 - Method and apparatus for determining transmission resource, and device

Info

Publication number: WO2022183930A1
Application number: PCT/CN2022/077248
Authority: WO
Inventors: 刘云
Original assignee: 华为技术有限公司
Priority date: 2021-03-01
Filing date: 2022-02-22
Publication date: 2022-09-09
Also published as: CN115002716A

Abstract

The present application relates to a method and apparatus for determining a transmission resource, and a device. The method is applied to a first device, and comprises: determining a first awareness window, wherein the first awareness window comprises at least one time slot after a first moment, and the first moment is a moment when the first device receives a transmission demand; determining a selection window, wherein the selection window comprises at least one time slot after the first awareness window; and determining a transmission resource by using the first awareness window and the selection window. The method provided in the present embodiment can be applied to a communication system, such as 5G, V2X, LTE-V, V2V, the Internet of Vehicles, MTC, IoT, LTE-M, M2M and the Internet of Things.

Description

A method, apparatus and device for determining transmission resources

This application claims the priority of the Chinese patent application with the application number 202110224669.9 and the application title "A Partial Perception Method with Early Termination", which was filed with the State Intellectual Property Office of China on March 1, 2021, and is claimed in May 2021 It was submitted to the State Intellectual Property Office of China on the 18th, with the application number of 202110541264.8 and the title of the application as "A method, device and equipment for determining transmission resources". The entire contents of the two Chinese patent applications are incorporated into this application by reference.

technical field

The present application relates to the field of communication technologies, and in particular, to a method, apparatus, and device for determining transmission resources.

Background technique

With the continuous evolution of communication technology, the development of Internet of Everything services is also accelerating. Among them, Vehicle-to-Everything (V2X) introduces a perception mechanism, mainly for personal terminals or some power-constrained devices, in order to reduce the perception time of user equipment (UE) and reduce perception power consumption . However, there is currently no technical solution for reducing the perceived power consumption.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method, apparatus, and device for determining transmission resources, which can determine a first sensing window and a selection window after a first moment when a first device receives a transmission request, and then utilize the first sensing window and selection window. The window determines the transmission resources, which can reduce the perceived power consumption.

In a first aspect, an embodiment of the present application provides a method for determining a transmission resource. The method is used for a first device, and includes: determining a first sensing window, where the first sensing window includes at least one time slot after the first moment, the first A moment is the moment when the first device receives the transmission request; the selection window is determined, and the selection window includes at least one time slot after the first sensing window; the transmission resource is determined by using the first sensing window and the selection window.

That is, the first device can determine the first sensing window and the selection window after receiving the first moment of the transmission request, and then use the first sensing window and the selection window to determine the transmission resource, which can reduce the sensing power consumption.

In a possible implementation manner, using the first sensing window and the selection window to determine the transmission resource includes: if the first sensing result is sensed in the first sensing window, determining the resource selection situation in the selection window according to the first sensing result , and according to the resource selection situation, it is determined whether sensing is performed on the first time slot in which sensing is not performed within the first sensing window.

That is, in this implementation manner, the first device may determine whether to perform sensing in other time slots within the first sensing window according to sensing results of some time slots in the first sensing window, thereby reducing sensing power consumption as much as possible.

In a possible implementation manner, the resource selection situation includes: determining, according to the first sensing result, that the number of candidate resources in the second time slot is greater than or equal to the first threshold, and the second time slot is a selection time in the selection window gap;

According to the resource selection situation, determining whether to perform sensing in the first time slot that is not sensed in the first sensing window includes: if the first time slot is a sensing time slot corresponding to other selected time slots after the second time slot, the other selection If the time slot is a time slot within the selection window, it is determined that no sensing is performed on the first time slot.

That is to say, in this implementation manner, when it is determined according to some sensing results that the number of resources greater than or equal to the first threshold value already exists, some unperceived time slots within the first sensing window (that is, the second The sensing timeslots corresponding to other selected timeslots after the timeslot are not sensed, so as to reduce the power consumption of sensing.

In a possible implementation manner, the resource selection situation includes: determining, according to the first sensing result, that the number of candidate resources in the third time slot is greater than or equal to the second threshold, and the third time slot is a selection time in the selection window gap;

Determining whether to perform sensing in the first time slot that is not sensed within the first sensing window according to the resource selection situation includes: if the first time slot is the sensing time slot corresponding to the fourth time slot, and the fourth time slot is the same as the third time slot If the interval between the time slots is less than the preset minimum interval, it is determined that no sensing is performed on the first time slot; or if the first time slot is the sensing time slot corresponding to the fifth time slot, and the fifth time slot is the same as the third time slot If the interval between the time slots is greater than or equal to the preset minimum interval, it is determined to perform sensing on the first time slot.

That is to say, in this implementation, a minimum interval is introduced, and some unperceived time slots within the minimum interval range (that is, the sensing time slot corresponding to the fourth time slot) may not be sensed, and after the minimum interval range The sensing is performed on the time slot (the sensing time slot corresponding to the fifth time slot), so as to reduce the power consumption of the sensing.

In a possible implementation manner, the resource selection situation includes: determining, according to the first sensing result, that the number of candidate resources on the sixth time slot is 0 or less than the set number threshold, and the sixth time slot is one of the selection windows select time slot;

Determining whether to perform sensing on the first time slot that is not sensed in the first sensing window according to the resource selection situation includes: if the first time slot is the sensing time slot corresponding to the sixth time slot, not performing sensing on the first time slot perception.

That is to say, in this implementation manner, when it is determined according to the first sensing result that there are no resources that meet the requirements in the sixth time slot in the selection window or that the number of resources that meet the requirements does not meet the set number requirement, the first device can The sensing time slot corresponding to the sixth time slot is not sensed, so as to reduce the power consumption of sensing.

In a possible implementation manner, the first sensing window further includes a second sensing window before the first moment, and the first sensing result further includes a second sensing result sensed within the second sensing window.

That is to say, in this implementation manner, when determining the transmission resource, not only the first sensing result on at least one time slot after the first moment can be used, but also the second sensing result perceived before the first moment can be used , thereby further reducing the perceived power consumption and improving the efficiency of determining transmission resources.

In a possible implementation manner, determining the first sensing window includes: if a set condition for triggering sensing is detected, determining the first sensing window after the first moment.

That is to say, in this implementation manner, trigger sensing conditions are introduced, and when these trigger sensing conditions are satisfied, the first device determines the first sensing window after the first moment, so as to reduce the power consumption of sensing to the greatest extent.

In a possible implementation manner, the setting conditions include one or more of the following: the number of sensing time slots before the first time is less than the third threshold; or the first time and the packet delay budget (Packet DelayBudget , PDB) time interval is greater than the fourth threshold; or the resource pool or channel busy ratio (Channel Busy Ratio, CBR) is greater than the fifth threshold; or the resource pool or channel occupancy ratio (Channel occupancy Ratio , CR) is less than the sixth threshold value; or the service type information is set type information, and the set type information includes that the priority of the service is higher than the seventh threshold value, the delay value of the service is lower than the eighth threshold value, And the service quality (Service Quality, QoS) value of the business is higher or lower than one or more of the ninth threshold values; or the perception caused by the remaining battery power being less than the tenth threshold value before the first moment closure.

That is to say, in this implementation manner, the setting conditions for triggering the perception can be in various situations, which improves the flexibility of triggering the perception.

In a possible implementation manner, determining the first sensing window includes: determining the first sensing window according to a first parameter; wherein the first parameter includes one or more of the following: selecting a starting time slot of the window; or setting Periodic value; or PDB.

That is, in this implementation manner, the first device can determine the first sensing window according to the starting time slot of the selection window, setting the period value, PDB and other parameters, which improves the accuracy of determining the first sensing window.

In a possible implementation manner, the first sensing window includes a first start time slot Ta and a first receive time slot Tb; the first start time slot Ta is selected according to the start time slot of the window, the set period value and the PDB Determined by at least one parameter in; the lower limit of the first initial time slot Ta is n+T_(proc,1)^SL; wherein, n represents the first moment; T_(proc,1)^SL represents the processing delay , the processing delay is a pre-configured parameter; the upper limit value of the first receiving time slot Tb is the first time value and is less than or equal to the starting time slot of the selection window; wherein, the first time value is PDB-k×T, T Indicates the set period value, k represents the number of periods, and k is an integer greater than or equal to 1.

In a possible implementation manner, determining the selection window includes: determining the selection window according to a second parameter; wherein the second parameter includes one or more of the following: a set period value; or a service delay; or a media access control The required number of resources provided by the (Medium Access Control, MAC) layer.

That is to say, in this implementation manner, the first device can determine the selection window according to parameters such as the set period value, the service delay, and the required number of resources provided by the MAC layer, which improves the accuracy of determining the selection window.

In a possible implementation manner, the selection window includes a second starting time slot Tc and a second receiving time slot Td; the second starting time slot Tc is based on a set period value, a service delay, and a given value provided by the MAC layer. Determined by at least one parameter in the number of required resources; the upper limit of the second initial time slot Tc is n+k×T, where n represents the first moment, T represents the set period value, k represents the number of periods, and k is An integer greater than or equal to 1; the upper limit of the second receive slot Td is PDB.

In a second aspect, an embodiment of the present application provides an apparatus for determining a transmission resource. The apparatus is used in a first device, and includes: a first determination module is configured to determine a first perception window, where the first perception window includes time after the first moment. At least one time slot, the first time is the time when the first device receives the transmission request; the second determination module is used to determine the selection window, and the selection window includes at least one time slot after the first sensing window; the third determination module is used for The transmission resource is determined using the first perception window and the selection window.

In a possible implementation manner, the third determining module includes: a first determining sub-module is configured to determine the resource selection situation in the selection window according to the first sensing result if the first sensing result is sensed in the first sensing window, According to the resource selection situation, it is determined whether sensing is performed on the first time slot in which sensing is not performed within the first sensing window.

In a possible implementation manner, the resource selection situation includes: determining, according to the first sensing result, that the number of candidate resources in the second time slot is greater than or equal to the first threshold, and the second time slot is a selection time in the selection window The first determination sub-module includes: a first determination unit is configured to determine if the first time slot is a sensing time slot corresponding to other selected time slots after the second time slot, and the other selected time slots are time slots in the selection window, then determine No sensing is performed on the first time slot.

In a possible implementation manner, the resource selection situation includes: determining, according to the first sensing result, that the number of candidate resources in the third time slot is greater than or equal to the second threshold, and the third time slot is a selection time in the selection window The first determination sub-module includes: a second determination unit is used if the first time slot is a sensing time slot corresponding to the fourth time slot, and the interval between the fourth time slot and the third time slot is smaller than a preset minimum time slot If the first time slot is the sensing time slot corresponding to the fifth time slot, and the difference between the fifth time slot and the third time slot is If the interval is greater than or equal to the preset minimum interval, it is determined to perform sensing on the first time slot.

In a possible implementation manner, the resource selection situation includes: determining, according to the first sensing result, that the number of candidate resources on the sixth time slot is 0 or less than the set number threshold, and the sixth time slot is one of the selection windows Selecting a time slot; the first determining submodule includes: a fourth determining unit configured to not perform sensing on the first time slot if the first time slot is a sensing time slot corresponding to the sixth time slot.

In a possible implementation manner, the first determination module includes: a second determination sub-module configured to determine the first perception window after the first moment if a set condition for triggering the perception is detected.

In a possible implementation manner, the setting conditions include one or more of the following: the number of sensing time slots before the first time is less than the third threshold; or the difference between the first time and the data packet delay budget PDB time When the interval between them is greater than the fourth threshold value; or the busy degree CBR of the resource pool or channel is greater than the fifth threshold value; or the occupancy ratio CR of the resource pool or channel is less than the sixth threshold value; or the service type information is set Type information, the set type information includes that the priority of the service is higher than the seventh threshold value, the delay value of the service is lower than the eighth threshold value, and the QoS value of the service is higher or lower than the ninth threshold value One or more of ; or the perception shutdown due to the remaining battery power being less than the tenth threshold value before the first moment.

In a possible implementation manner, the first determining module includes: a third determining sub-module is configured to determine the first sensing window according to the first parameter; wherein the first parameter includes one or more of the following: select the start of the window time slot; or set period value; or PDB.

In a possible implementation manner, the second determination module includes: a fourth determination submodule for determining a selection window according to a second parameter; wherein the second parameter includes one or more of the following: a set period value; or a service Delay or; the required number of resources provided by the medium access control MAC layer.

In a third aspect, an embodiment of the present application provides a communication device, including: a processor and a memory; the memory is used to store computer instructions; when the communication device is running, the processor executes the computer instructions, so that the communication device performs the above-mentioned first aspect. method.

In a fourth aspect, an embodiment of the present application provides a computer storage medium, where the computer storage medium includes computer instructions, and when the computer instructions are executed, the method of the first aspect above is executed.

In a fifth aspect, an embodiment of the present application provides a computer program product comprising computer instructions, when the computer instructions are executed, the method of the above-mentioned first aspect is executed.

The method, apparatus, and device for determining transmission resources provided by the embodiments of the present application can determine the first sensing window and the selection window after the first moment when the first device receives the transmission request, and then use the first sensing window and the selection window to determine transmission resources, thereby reducing perceived power consumption.

Description of drawings

Figure 1 is a schematic diagram of a perception mechanism;

Figure 2 is a schematic diagram of a partial perception mechanism;

3 is a schematic diagram of a communication system architecture;

Figure 4 is a schematic diagram of a perception mechanism;

5 is a flowchart of a method for determining transmission resources provided by an embodiment of the present application;

6 is a schematic diagram of a trigger condition provided by an embodiment of the present application;

7 is a schematic diagram of determining a perception window and a selection window provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a sensing method provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a sensing method provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of a sensing method provided by an embodiment of the present application;

11 is a schematic diagram of a sensing method provided by an embodiment of the present application;

12 is a schematic structural diagram of an apparatus for determining transmission resources provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

In the description of the embodiments of the present application, words such as "exemplary", "such as" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described in the embodiments of the present application as "exemplary," "such as," or "by way of example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, use of words such as "exemplary," "such as," or "by way of example" is intended to present the related concepts in a specific manner.

In the description of the embodiments of the present application, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. The terms "including", "including", "having" and their variants mean "including but not limited to" unless specifically emphasized otherwise.

The method for determining transmission resources provided in the embodiments of this application can be applied to communication systems, such as 5G, V2X, LTE-V, virtual to virtual (Virtual to Virtual, V2V), Internet of Vehicles, and Machine Type Communication (MTC) ), LTE-M, Machine to Machine (M2M), Internet of Things (IoT), etc.

The device for determining the transmission resource provided by the embodiment of the present application may be a communication device in the above-mentioned communication system, for example, a terminal. The terminal here may also be referred to as user equipment (User Equipment, UE) or the like. Terminals include but are not limited to handheld devices, vehicle-mounted devices, chips, and the like. For example, it may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA). It can also be a chip, a processor, an integrated processing unit, etc., which are provided on the communication device.

With the continuous evolution of communication technology, the development of Internet of Everything services is also accelerating. Among them, V2X introduces a sensing mechanism, which is mainly aimed at personal terminals or some power-constrained devices, in order to reduce the sensing time of the UE and reduce the sensing power consumption.

For the perception mechanism, please refer to the following Figure 1 or Figure 2 implementation:

Figure 1 is a schematic diagram of a perception mechanism. As shown in Figure 1, the sensing mechanism is divided into two parts: the sensing window and the selection window. The middle time n is the time when there is a transmission demand from the MAC. The UE continues to sense, and when the physical layer receives the transmission requirement notified by the MAC layer, the sensing window is determined at the position before time n, and the selection window is determined at the position after time n. The interval between the sensing window and the corresponding selection window is a period, such as 100ms. T0 in Figure 1 is the start time slot of the sensing window, T1 is the start time slot of the selection window, T2 is the end time slot of the selection window, and PDB is the packet delay budget (Packet DelayBudget) time.

Considering that the priority of the service is different, the interference requirements in the sensing result are also different, so the SL-ThresRSRP_pi_pj parameter is introduced, where pi is the priority of the service to be performed on the sensing terminal, and pj is the existing resource on the resource. The priority of transmission, and the SL-ThresRSRP_pi_pj parameter is the interference threshold Th(pi, pj) for sensing on the resource. If the threshold is exceeded, the resource is unavailable. If it is lower than the threshold, the resource can be used as a candidate resource. One, and then do further steps such as random selection.

SL-ThresRSRP_pi_pj constitutes a two-dimensional table based on pi and pj. Generally, the higher the priority that the sensing terminal needs to perform, the lower the requirement for interference, so as to cover more resources to be selected, the higher the value of SL-ThresRSRP_pi_pj is. High; generally the higher the priority of the existing transmission on the perceived resource, the lower the value of SL-ThresRSRP_pi_pj, in order to reduce the interference to the high-priority existing transmission.

In the selection window, filter out a certain number of resources to be selected according to the SL-ThresRSRP_pi_pj parameter. If the number of resources to be selected is less than X% of the total resources in the selection window, and the optional value of X is 20, 35, or 50, then increase the SL- The parameter ThresRSRP_pi_pj contains more resources as candidate resources until the number of candidate resources is greater than or equal to X%, and then reports the screened candidate resources to the MAC layer.

Figure 2 is a schematic diagram of a partial perception mechanism. As shown in Figure 2, the UE periodically senses some time slots (for example, period T1), and when a transmission demand time n arrives, the position of the selection window is determined according to the existing sensing window. It can be seen here that the selection window and the sensing window still meet certain periodic requirements, but the selection window is no longer a continuous time slot, so the time slot available to the UE is reduced, but the time slot that the UE needs to sense is also reduced, and there is no need for continuous sensing, thus Reduced power consumption.

Among them, part of the sensing mechanism only reduces the number of perceived time slots, and the rest filter resources according to the SL-ThresRSRP_pi_pj parameter until X% of the total resources in the selection window (the optional value of X is 20, 35 or 50) is filtered and then reported to the MAC layer. The process remains the same.

However, the sensing mechanisms shown in Figures 1 and 2 above need to be sensed before the unknown transmission demand time n, which will cause a mismatch between the perceived power consumption and the transmission demand. For example, when there is no transmission demand, the perception cannot be reduced. ; In addition, some sensing mechanisms also need to filter out X% (X optional value is 20, 35 or 50) of the number of resources to be selected in the selection window. In order to filter out these large amounts of resources, it is necessary to select all the However, in actual transmission, it is not necessarily possible to use so many resources, and a matching number of candidate resources cannot be given according to the actual transmission demand. For example, if there are 100 resources in the selection window, X=50, that is, 50 resources are to be selected and reported to the MAC, but the actual demand is only 3 resources, and 50 are perceived for 3 resources, which is too expensive.

On the basis of the above embodiments, the present application provides a method, apparatus and device for determining transmission resources, which can be sensed after the transmission demand time n, and the sensed time slot can be changed, so that it can be determined according to the sensing results of a part of the time slots Whether to continue sensing in another part of the time slot to reduce sensing power consumption.

That is to say, the present application performs partial sensing after time n to reduce sensing power consumption, which involves the triggering process of this sensing mechanism, the determination of sensing window and selection window, and the adjustment of sensing window and selection window according to the result of sensing, For example, the sensing indication corresponding to the time slot that cannot be used as the resource to be selected is excluded, or the subsequent partial sensing is stopped after sensing enough resources.

It is worth noting that, considering Uu (UTRAN-to-UE) air interface transmission, both parties of wireless communication include network equipment and user communication equipment; considering SL air interface transmission, both transceivers of wireless communication are user communication equipment. Among them, for network equipment, in the Universal Mobile Telecommunications System (UMTS) or Long Term Evolution (Long Term Evolution, LTE) wireless communication system, it can be a macro base station (evolved node base station, eNB); in a heterogeneous network In the Heterogeneous Network (HetNet) scenario, it can be a micro base station; in the distributed base station scenario, it can be a Base Band Unit (BBU) and a Remote Radio Unit (RRU); In the Radio Access Netowrk, CRAN) scenario, it can be the baseband pool (BBU pool) and the radio frequency unit (RRU), and in the future wireless communication system, it can be the next generation node base station (gNB). For the user communication device, it can be a vehicle-mounted communication module or other embedded communication modules, or it can be a user's handheld communication device, including a mobile phone, a tablet computer, and the like.

The following description will be given through specific embodiments.

Figure 3 is a schematic diagram of a communication system architecture. As shown in Figure 3, UE-A and UE-B two vehicle user equipment (Vehicle user Equipment, VUE) communicate, and can also communicate with vulnerable road users (vulnerable road users, VRU) to communicate. The VRU is located within the coverage of UE-A and UE-B, and can obtain the occupied spectrum through spectrum sensing. Among them, UE-A and UE-B, as vehicle-mounted UEs, do not have high requirements on power consumption, while VRU, as a mobile phone terminal, has limited battery power and needs to consider the energy-saving perception mechanism.

It is worth noting that the devices that need to reduce perception involved in this application may be UE-A and UE-B in FIG. 3 , or may be the VRU device in FIG. 3 .

Figure 4 is a schematic diagram of a perception mechanism. As shown in Figure 4, the sensing window is between n+Ta and n+Tb, and the selection window is between n+Tc and n+Td, so that the sensing window and the selection window can be determined when the transmission demand time n arrives , and then use the sensing window and the selection window to determine the transmission resources, which can reduce the sensing power consumption.

FIG. 5 is a flowchart of a method for determining transmission resources provided by an embodiment of the present application. The method may be used for a first device, and the first device may be UE-A and UE-B in FIG. 3 , or may be FIG. 3 The VRU device in the device can also be other terminal devices. The method can achieve the purpose of reducing the power consumption of the perception based on the perception mechanism shown in FIG. 4 . As shown in Figure 5, the method for determining transmission resources may include the following steps:

S501. Determine a first sensing window, where the first sensing window includes at least one time slot after a first time, and the first time is the time when the first device receives the transmission request.

Specifically, the first sensing window may be the sensing window between n+Ta and n+Tb in FIG. 4 , and the first moment is the moment n in FIG. 4 .

In some embodiments, when determining the first sensing window, the first sensing window can be determined after the first moment only when a set condition for triggering sensing needs to be detected. Wherein, the setting conditions for triggering perception may include but not limited to one or more of the following triggering conditions:

Trigger condition 1: The number of sensing time slots before the first moment is less than the third threshold value.

Specifically, the number of existing partial perceptions is insufficient. For example, the number is less than a threshold (ie, the third threshold value). In order to reduce the perception power consumption, some perception time slots are very few, resulting in transmission requirements. When the number of perceptions within is insufficient, perceptions after time n can be triggered. For example, as shown in Figure 6, the period value is T1, and there is no corresponding sensing time slot between the partial sensing time slot before time n and the PDB time after time n. Therefore, for the time slot in the selection window, a new time slot is required. Increase perception time slot.

Trigger condition 2: when the interval between the first moment and the PDB moment is greater than the fourth threshold.

Specifically, if the interval from time n to the PDB time is greater than at least N period values (ie, the fourth threshold value), the sensing after time n can be triggered. Here, N may be greater than or equal to 1, and the period value is one of the period values to be selected in the resource pool configuration.

Triggering condition 3: The busy degree CBR of the resource pool or channel is greater than the fifth threshold value.

Specifically, when the busyness of the resource pool exceeds a certain value (ie, the fifth threshold value), the sensing after time n can be triggered.

Trigger condition 4: The occupancy ratio CR of the resource pool or the channel is less than the sixth threshold value.

Specifically, when the channel occupancy condition is lower than a certain value (ie, the sixth threshold value), the sensing after time n can be triggered.

Trigger condition 5. The service type information is the setting type information, and the setting type information may include but not limited to one or more of the following: the priority of the service is higher than the seventh threshold; or the delay value of the service is lower than the seventh threshold. eight threshold values; or the service quality QoS value of the service is higher or lower than the ninth threshold value.

Specifically, if the priority of the service is higher than a threshold, or the latency requirement is low, or the QoS is lower than a service with a certain requirement, the sensing after time n can be triggered.

Trigger condition 6. The sensing is not started before the first moment, for example, in scenarios such as the first device is just turned on; or there is no sensing time slot within a certain range before the first moment. Optionally, the reason for not starting the sensing includes, but is not limited to, the sensing is turned off because the remaining battery power is less than the tenth threshold value.

Specifically, when the remaining power of the battery is lower than the threshold (ie, the tenth threshold value) and the sensing is turned off, the sensing may be triggered after time n.

It can be seen that the first device can trigger the perception after time n after detecting that the above triggering conditions are met, so that the first device can sense the time n in a more targeted manner, thereby reducing the extra power consumption before time n. Reduced perceived power loss.

In some embodiments, when determining the first sensing window, it may be determined according to parameters such as the starting time slot of the selection window, or the set period value, or the PDB.

S502. Determine a selection window, where the selection window includes at least one time slot after the first sensing window.

Specifically, the selection window may be the selection window between n+Tc and n+Td in FIG. 4 .

In some embodiments, when determining the selection window, it may be determined according to parameters such as a set period value; or a service delay; or a required number of resources provided by the MAC layer.

In the above S501 and S502, the determination process of the first perception window and the determination process of the selection window may be parallel and have no affiliation; the first perception window may also be determined first, and then the selection window may be determined; the selection window may also be determined first, and then determined The first perception window. The present application does not limit the sequence of the determination process of the first sensing window and the determination process of the selection window. For example, as shown in Figure 7, the determination processes of Ta, Tb, Tc, and Td are parallel and have no subordinate relationship. Both T1 and T2 are periodic values (for example, 10ms, 20ms, etc.), and T1 is subtracted from the moment of time slot 1. To obtain a sensing time slot, subtract T2 from the moment of time slot 1 to obtain another sensing time slot. The determination process of Ta, Tb, Tc, and Td is as follows:

(1) Select the window start time slot Tc

Specifically, the lower limit of Tc is n+k×period value. Wherein, the period value is one of all period values (may be the minimum period value), and k>=1, to ensure that the selection window has at least one sensing time slot corresponding to the periodic service; or Tc is determined according to the service time delay; or Tc is determined according to the resource requirements downloaded by the MAC.

(2) Select the end time slot Td of the window

Specifically, the upper limit of Td is PDB.

(3) The starting time slot Ta of the sensing window

Specifically, the lower limit of Ta is n+T_(proc,1)^SL. Among them, T_(proc,1)^SL is the processing delay, which is a pre-configured parameter.

(4) Sensing window end time slot Tb

Specifically, the upper limit of Tb is PDB minus k×period value, k>=1, and less than Tc, the smaller value of the two can be taken to ensure that the perceived time slot has at least one corresponding time slot in the selection window; or Tb =Tc or Tb and Tc are adjacent.

It is worth noting that in the above-mentioned determination process of Ta, Tb, Tc, and Td, especially Tb and Tc may involve period-related parameters, but limited by the remaining delay between n and PDB, the perception corresponding to the selection window The period referenced by the time slot in the window should be less than the remaining delay. In the above periods, it can be further screened according to the priority, power consumption limit, etc. The higher the priority, the more periods to be considered to ensure the reliability of high-priority services In the case of stability, the perceived time slot is reduced to reduce the perceived power consumption.

S503. Determine the transmission resource by using the first sensing window and the selection window.

Specifically, as shown in FIG. 4 , the first device can use the sensing window between n+Ta and n+Tb and the selection window between n+Tc and n+Td to determine the transmission resource, so that the transmission demand time is used. The sensing window and the selection window after n determine the transmission resources, which can reduce the sensing power consumption.

In addition, when sensing is performed within the first sensing window, the sensing window or the range of the selection window may also be adjusted according to the sensing result, in order to reduce sensing as much as possible, thereby reducing sensing power consumption.

In some embodiments, in order to further reduce the perceived power consumption, if the first perception result is perceived within the first perception window, the resource selection situation in the selection window is determined according to the first perception result, and the first perception window is determined according to the resource selection situation Whether sensing is performed on the first time slot in which sensing is not performed. It specifically includes the following implementations:

Mode 1. In the case of resource selection, it is determined that the number of candidate resources on the second time slot is greater than or equal to the first threshold value according to the first sensing result, and when the second time slot is a selection time slot in the selection window, if the first time slot is selected A time slot is a sensing time slot corresponding to other selected time slots after the second time slot, and the other selected time slot is a time slot within the selection window, so it is determined that no sensing is performed on the first time slot.

Specifically, when it is determined according to the first sensing result that resources greater than or equal to Nsel (ie, the first threshold value) are available, there is no need to increase sensing to provide more resources to be selected, so as to achieve the purpose of energy saving. The implementation process includes: first, obtaining the parameter Nsel, and Nsel can be obtained from the upper layer. For example, the MAC layer informs the physical layer of Nsel through signaling, or pre-configures Nsel; or the MAC layer informs the physical layer of the number of required resources through signaling, The value obtained by the physical layer multiplied by the number of resources is used as Nsel. Then, according to the sensing result, determine whether the resources in the time slot to be selected meet the requirements, and stop sensing when at least Nsel resources meet the transmission requirements; the above-mentioned requirements are met, that is, the perceived signal strength on the resources is not greater than SL-ThresRSRP_pi_pj.

For example, as shown in Figure 8, the periods are T1 and T2, and Nsel=1. The Nsel=1 indicates that only one resource needs to be selected. The selection window includes two time slots m1 and m2, and the sensing window includes n1 and n2. , n3, n4. After sensing n1, n2 and n3, it is determined that resource 1 of time slot m1 (that is, the second time slot in the above method 1) meets the transmission requirements, that is, there are at least Nsel resources to be selected (also called candidate resources) , the sensing is not performed on the time slot n4 corresponding to m2 (ie, the first time slot in the above manner 1), so as to reduce the power consumption of sensing.

Manner 2. In the resource selection situation: the resource selection situation includes: determining according to the first sensing result that the number of candidate resources on the third time slot is greater than or equal to the second threshold value, and the third time slot is a selection time in the selection window In the time slot, if the first time slot is the sensing time slot corresponding to the fourth time slot, and the interval between the fourth time slot and the third time slot is less than the preset minimum interval, it is determined that no sensing; or if the first time slot is the sensing time slot corresponding to the fifth time slot, and the interval between the fifth time slot and the third time slot is greater than or equal to the preset minimum interval, then determine the first time slot to perceive.

Specifically, after it is determined that a time slot provides resources exceeding a certain threshold according to the first sensing result, at least the minimum interval is guaranteed and then a sensing time slot is determined to reduce the sensing power consumption within the minimum interval span. Wherein, the minimum interval may be obtained through multiple ways such as configuration in the resource pool, service requirements, and notification by the MAC layer to the physical layer.

Since the physical layer reports the resources to be selected (also known as candidate resources) to the MAC, the MAC will consider the minimum time gap (minimum time gap) when selecting resources, that is, the minimum time gap ( Also known as the minimum interval). Optionally, the minimum time interval is informed by the MAC layer to the physical layer. After the physical layer selects a certain number of resources to be selected (also called candidate resources) in a time slot in the selection window, other time slots in the time slot in the selection window corresponding to the resource within the minimum time interval are not listed. In order to select the timeslots in the window, sensing is not performed on the sensing timeslots corresponding to these timeslots, so as to reduce the sensing power consumption. For the time slot in the selection window corresponding to the resource, a time slot whose interval with the time slot is equal to or greater than the minimum interval is determined in the selection window, and sensing is performed on the sensing time slot corresponding to the determined time slot. Further, the time slot between the excluded time slot and the earliest time slot in the selection window exceeds W, where W is a configured parameter, and an optional value is 32.

For example: as shown in Figure 9, the period is T1, Nsel_slot=1, the Nsel_slot=1 means that only one resource needs to be selected in one time slot, the minimum interval range is 2 time slots, and the initial selection window includes time Slots m1 to m5, the sensing window contains n1 to n5. When the sensing n1 determines that the candidate resource 1 and the candidate resource 2 on the time slot m1 meet the requirements, that is, the candidate resources greater than or equal to Nsel_slot are screened out on m1, and the time slot m2 within the minimum interval of the m1 time slot is not It is listed as a selection window again, and the sensing time slot n2 corresponding to the corresponding m2 time slot is no longer sensed, and the sensing time slot n3 corresponding to m3 whose interval with m1 is greater than or equal to the minimum interval is sensed; when the sensing n3 is determined to be on m3 When the resources to be selected meet the requirements, the time slot m4 within the minimum interval range of the m1 time slot is no longer listed as the selection window, and the corresponding sensing time slot n4 corresponding to the m4 time slot is no longer sensed, and the interval with m3 is greater than or Sensing is performed on the sensing time slot n5 corresponding to m5 equal to the minimum interval to determine the resource to be selected, thereby further reducing the sensing power consumption by introducing the minimum interval.

Mode 3. In the case of resource selection, it includes: determining, according to the first sensing result, that the number of candidate resources on the sixth time slot is 0 or less than the set number threshold, and the sixth time slot is a selection time slot in the selection window; if The first time slot is a sensing time slot corresponding to the sixth time slot, and sensing is not performed on the first time slot. Wherein, the number of candidate resources here is 0, which indicates that there are no resources that meet the requirements in the time slot, and that the number of candidate resources is less than the set number threshold value indicates that the number of resources that meet the requirements in the time slot does not reach the required number. Moreover, the resources that meet the requirements here may mean that the measured signal strength is not higher than SL-ThresRSRP_pi_pj (that is, the RSRP threshold), and the resources that do not meet the requirements may refer to that the measured signal strength is higher than SL-ThresRSRP_pi_pj (that is, the RSRP threshold) .

Specifically, when it is determined according to the first sensing result that there is no resource that meets the requirements in a time slot, the sensing of the remaining periods may be abandoned to achieve the purpose of energy saving. Wherein, according to the first sensing result, it is determined whether the resources in the time slot to be selected meet the requirements, when the resources in one time slot do not meet the requirements, that is, the signal strength is higher than SL-ThresRSRP_pi_pj, the time slot corresponding to other periods Not perceptible on the slot; further, the above-mentioned non-perceptible time slot is further defined as, the time slot corresponding to the time slot may be in the selection window but does not meet the requirements, and may not be in the selection window, such as exceeding the PDB, this This time slot is not sensed. Further, the time slot between the excluded time slot and the earliest time slot in the selection window exceeds W, where W is a preconfigured parameter, and an optional value is 32.

For example, as shown in Figure 10, the periods are T1 and T2, Nsel is 1, the selection window includes two time slots m1 and m2, and the sensing window includes n1 to n4. After sensing n1, it is determined that all the resources of the time slot m1 do not meet the reference signal received power (Reference Signal Received Power, RSRP) threshold requirement (that is, the number of resources below the threshold is 0 or less than a threshold value), Sensing is not performed at time slot n3 to reduce the power consumption of sensing.

Manner 4: The first sensing window further includes a second sensing window before the first moment, and the first sensing result further includes a second sensing result sensed within the second sensing window. Wherein, for the first sensing window including the second sensing window, the last sensing time slot before the first time and the first sensing time slot after the first time may be adjacent, for example: as shown in FIG. 11 , n6 and n1 can be adjacent time slots.

Specifically, the first sensing results in the above manners 1 to 3 may include, in addition to the sensing results after the transmission demand time n, the sensing results before the transmission demand time n. Its realization process includes:

First, the position of the selection window is determined according to the sensing time slot before time n (for example, the sensing window 1 in FIG. 11 ); the time slot with the sensing result before time n is separated by a time slot with a period value of T3, and the selection window is determined where the period value is one or more of the optional values configured by the resource pool.

Secondly, the sensing time slot after n is determined according to the position of the selection window (for example, the sensing window 2 in FIG. 11 ); according to the selection window, the position of the sensing window is determined at intervals of a period value T1 (for example, the position of the sensing window in FIG. 11 ) Perception window 2), the period value is one or more of the optional values configured by the resource pool, and the selected period value T1 will be smaller than T3. Combined with the sensing results before time n, determine the time slot in the sensing window after time n, including the following possibilities:

(1) The sensing result before time n determines that the RSRP value measured by the resources on a time slot in the selection window exceeds the RSRP threshold (that is, the resource exceeding the RSRP threshold is unavailable), then the sensing window 2 corresponding to the time slot Time slot A is judged. If the interval between time slot A and other time slots in the selection window does not meet a period value, then no sensing is performed on time slot A; optionally, the earliest one between time slot A and the selection window is further limited. If the time slot interval exceeds W, W is a pre-configured value, and the optional value is 32; (2) At least Nsel resources that do not exceed the RSRP threshold (that is, do not exceed the (3) If the sensing result before time n and the sensing result after time n determine a time slot B1 Nsel_slot resources to be selected, consider the minimum time interval, and judge the sensing time slot B2 corresponding to the time slot within the minimum time interval of the B1 interval. If time slot B2 is within the selection window except B1 and its minimum time interval If the interval of other time slots does not satisfy a period value, then no sensing is performed on time slot B2; further, if the time slot between the excluded time slot B2 and the earliest time slot interval in the selection window exceeds W, W is the configuration parameter, an optional value of 32.

For example, as shown in Figure 11, the periods are T1, T2, and T3. Before time n, there are sensing results on time slots n5 and n6. According to the mapping of n5 and period T3 to time slots m1 and m2, the selection window is determined, and the selection window is determined according to the period T1 and T2 determines time slots n1, n2, n3, and n4 as sensing time slots, and determines the resources to be selected in the selection window in combination with the sensing results of n1 to n6. Combined with the sensing results before time n, determine the time slot in the sensing window after time n, including the following possibilities:

(1) n5 determines that the RSRP values measured by the resources on m1 all exceed the RSRP threshold (that is, the resources exceeding the RSRP threshold are unavailable), m1 corresponds to n1 and n3, and the interval between n1 and n3 and other time slots in the selection window If the period value is not met, then n1 and n3 are not sensed; (2) the sensing results of n5, n1, and n3 determine at least Nsel resources that do not exceed the RSRP threshold (that is, resources that do not exceed the RSRP threshold can be used as candidate resources), (3) The sensing results of n5, n1, and n3 determine Nsel_slot (for example, Nsel_slot=1) candidate resources on m1, then m1 is separated by the minimum time interval range (for example, the minimum time The time slot n4 corresponding to the time slot m2 within the interval range of 2 time slots is not sensed.

It can be seen from the above embodiments that the first device can determine the first sensing window and the selection window after receiving the first moment of the transmission request, and then use the first sensing window and the selection window to determine the transmission resources, which can reduce the sensing power consumption. In particular, the sensing results of some time slots within the first sensing window may be used to determine whether sensing is performed in other time slots within the first sensing window, so as to reduce sensing power consumption as much as possible.

FIG. 12 is a schematic structural diagram of an apparatus for determining transmission resources provided by an embodiment of the present application. The apparatus may be used for a first device, and the first device may be UE-A and UE-B in FIG. The VRU device in 3 may also be other terminal devices; the apparatus may be used to execute the methods for determining transmission resources shown in FIG. 5 to FIG. 11 above. As shown in Figure 12, the apparatus may include:

a first determining module 121, configured to determine a first sensing window, where the first sensing window includes at least one time slot after a first moment, and the first moment is the moment when the first device receives the transmission request;

a second determining module 122, configured to determine a selection window, where the selection window includes at least one time slot after the first sensing window;

The third determining module 123 is configured to determine transmission resources by using the first sensing window and the selection window.

In a possible implementation manner, the third determining module 123 may include:

The first determination submodule is configured to, if the first perception result is perceived in the first perception window, determine the resource selection situation in the selection window according to the first perception result, and determine the resource selection situation in the first perception window that is not perceptible according to the resource selection situation. Whether sensing is performed on the first time slot.

In a possible implementation manner, the resource selection situation includes: determining, according to the first sensing result, that the number of candidate resources in the sixth time slot is 0 or less than the set number threshold, and the sixth time slot is one of the selection windows Selecting a time slot; the first determining submodule includes: a fourth determining unit configured to not perform sensing on the first time slot if the first time slot is a sensing time slot corresponding to the sixth time slot.

In a possible implementation manner, the first determining module 121 may include:

The second determining submodule is configured to determine the first sensing window after the first moment if the set condition for triggering sensing is detected.

In a possible implementation manner, the setting conditions include one or more of the following: the number of sensing time slots before the first time is less than the third threshold; or the interval between the first time and the PDB time is greater than the third When there are four thresholds; or the busyness CBR of the resource pool or channel is greater than the fifth threshold; or the occupancy ratio CR of the resource pool or channel is less than the sixth threshold; or the service type information is set type information, set The type information includes one or more of the priority of the service is higher than the seventh threshold value, the delay value of the service is lower than the eighth threshold value, and the QoS value of the service is higher or lower than the ninth threshold value ; or the perception shutdown due to the remaining battery power being less than the tenth threshold value before the first moment.

The third determination submodule is configured to determine the first sensing window according to the first parameter; wherein, the first parameter includes one or more of the following: selecting the starting time slot of the window; or setting the period value; or the PDB.

In a possible implementation manner, the second determining module 122 may include:

The fourth determination sub-module is configured to determine the selection window according to the second parameter; wherein the second parameter includes one or more of the following: a set period value; or a service delay or; the required number of resources provided by the MAC layer.

It should be understood that the above-mentioned apparatus is used to execute the method for determining transmission resources in the embodiments shown in FIG. 5 to FIG. 11 , and the implementation principles and technical effects of the corresponding program modules in the apparatus are the same as those shown in the above-mentioned FIGS. The description in the method for determining transmission resources in the exemplary embodiment is similar to that described in the above-mentioned embodiments. For the working process of the apparatus, reference may be made to the corresponding processes in the methods for determining transmission resources in the above-mentioned embodiments shown in FIG. 5 to FIG. 11 , which will not be repeated here. .

FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device may be a terminal, such as UE-A and UE-B in FIG. 3 , or a VRU device in FIG. 3 . For ease of explanation, Figure 13 illustrates the main components of the terminal, as shown in Figure 13:

The terminal includes at least one processor 1311 , at least one transceiver 1312 and at least one memory 1313 . The processor 1311 , the memory 1313 and the transceiver 1312 are connected. Optionally, the terminal may further include an output device 1314 , an input device 1315 and one or more antennas 1316 . The antenna 1316 is connected to the transceiver 1312 , and the output device 1314 and the input device 1315 are connected to the processor 1311 .

The processor 1311 is mainly used to process communication protocols and communication data, control the entire node, execute software programs, and process data of the software programs.

As an optional implementation manner, the processor 1311 may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data. The central processing unit is mainly used to control the entire terminal equipment, execute software programs, and process data of software programs. Alternatively, the processor may integrate the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected through technologies such as a bus. Those skilled in the art can understand that a node may include multiple baseband processors to adapt to different network standards, a node may include multiple central processors to enhance its processing capability, and various components of the node may be connected through various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data can be built in the processor, or stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

The memory 1313 is mainly used to store software programs and data. The memory 1313 may exist independently and be connected to the processor 1311 . Optionally, the memory 1313 may be integrated with the processor 1311, for example, integrated within a chip, that is, an on-chip memory, or the memory 1313 is an independent storage element, which is not limited in this embodiment of the present application. The memory 1313 can store program codes for implementing the technical solutions of the embodiments of the present application, and is controlled and executed by the processor 1311 .

The transceiver 1312 can be used for converting the baseband signal to the radio frequency signal and processing the radio frequency signal, and the transceiver 1312 can be connected with the antenna 1316 . The transceiver 1312 includes a transmitter (Tx) and a receiver (Rx). Specifically, one or more antennas 1316 may receive radio frequency signals, and the receiver Rx of the transceiver 1312 is configured to receive the radio frequency signals from the antennas, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital The baseband signal or digital intermediate frequency signal is provided to the processor 1311, so that the processor 1311 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing. In addition, the transmitter Tx in the transceiver 1312 is used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 1311, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass one or A plurality of antennas 1316 transmit the radio frequency signals. Specifically, the receiver Rx can selectively perform one or more stages of down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal. The order of precedence is adjustable. The transmitter Tx can selectively perform one or more stages of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal, and the up-mixing processing and digital-to-analog conversion processing The sequence of s is adjustable. Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals. Optionally, the transmitter Tx and the receiver Rx may be implemented by different physical structures/circuits, or may be implemented by the same physical structure/circuit, that is, the transmitter Tx and the receiver Rx may be inherited together.

The transceiver 1312 may also be referred to as a transceiver unit, a transceiver, a transceiver, or the like. Optionally, the device used to implement the receiving function in the transceiver unit may be regarded as a receiving unit, and the device used to implement the transmitting function in the transceiver unit may be regarded as a transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit, and the receiving unit also It can be called a receiver, an input port, a receiving circuit, etc., and the sending unit can be called a transmitter, a transmitter, or a transmitting circuit, etc. Alternatively, a combination of Tx, Rx and antenna can be used as a transceiver.

Output device 1314 displays information in a variety of ways. For example, the output device 1314 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector) Wait. Input device 1315 may accept user input in a variety of ways. For example, the input device 1315 may be a mouse, a keyboard, a touch screen device or a sensing device, or the like.

Embodiments of the present application further provide a computer storage medium, where the computer storage medium includes computer instructions, when the computer instructions are executed on the communication device, the communication device can execute the above method for determining transmission resources.

An embodiment of the present application further provides a computer program product, characterized in that, when the program code included in the computer program product is executed by a processor in a communication device, the above method for determining a transmission resource is implemented.

It can be understood that the processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

The method steps in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions. Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (programmable rom) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disks, removable hard disks, CD-ROMs or known in the art in any other form of storage medium. An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium may reside in an ASIC.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted over a computer-readable storage medium. The computer instructions can be sent from one website site, computer, server, or data center to another website site by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) , computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.

It can be understood that, the various numbers and numbers involved in the embodiments of the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application.

Claims

A method for determining transmission resources, characterized in that the method is used in a first device, comprising:

determining a first sensing window, where the first sensing window includes at least one time slot after the first time, where the first time is the time when the first device receives the transmission request;

determining a selection window, the selection window including at least one time slot after the first sensing window;

Transmission resources are determined using the first perception window and the selection window.
The method according to claim 1, wherein the determining a transmission resource by using the first sensing window and the selection window comprises:

Determine according to the first sensing result that the number of candidate resources on the second time slot is greater than or equal to the first threshold, and the second time slot is a selection time slot in the selection window;

If the first time slot is a sensing time slot corresponding to another selected time slot after the second time slot, and the other selected time slot is a time slot in the selection window, it is determined that the first time slot is in the first time slot. no perception.
The method according to claim 1, wherein the determining a transmission resource by using the first sensing window and the selection window comprises:

Determine according to the first sensing result that the number of candidate resources on the third time slot is greater than or equal to the second threshold value, and the third time slot is a selection time slot in the selection window;

If the first time slot is a sensing time slot corresponding to the fourth time slot, and the interval between the fourth time slot and the third time slot is less than a preset minimum interval, determine that the first time slot is in the first time slot. No sensing is performed on the time slot; or

If the first time slot is the sensing time slot corresponding to the fifth time slot, and the interval between the fifth time slot and the third time slot is greater than or equal to the preset minimum interval, determine the Sensing is performed on the first time slot.
The method according to claim 1, wherein the determining a transmission resource by using the first sensing window and the selection window comprises:

It is determined according to the first sensing result that the number of candidate resources on the sixth time slot is 0 or less than the set number threshold, and the sixth time slot is a selection time slot in the selection window;

If the first time slot is a sensing time slot corresponding to the sixth time slot, no sensing is performed on the first time slot.
The method according to any one of claims 1 to 4, wherein the first sensing window further includes a second sensing window before the first moment, and the first sensing result further includes The second perception result perceived within the perception window.
The method according to claim 1, wherein the determining the first sensing window comprises:

If a set condition for triggering sensing is detected, the first sensing window is determined after the first moment, and the set condition includes one or more of the following:

The number of sensing time slots before the first moment is less than a third threshold; or

When the interval between the first moment and the data packet delay budget PDB moment is greater than the fourth threshold; or

The busyness CBR of the resource pool or channel is greater than the fifth threshold; or

The occupancy ratio CR of the resource pool or channel is less than the sixth threshold; or

The service type information is setting type information, and the setting type information includes that the priority of the service is higher than the seventh threshold value, the delay value of the service is lower than the eighth threshold value, and the service quality QoS value of the service is higher than the seventh threshold value. or below one or more of the ninth threshold values; or

The perception is turned off due to the remaining battery power being less than the tenth threshold value before the first time.
The method according to claim 1 or 6, wherein the determining the first sensing window comprises:

The first perception window is determined according to a first parameter; wherein the first parameter includes one or more of the following:

select the starting time slot of the window; or

set period value; or

pdb.
The method according to claim 7, wherein the first sensing window comprises a first starting time slot Ta and a first receiving time slot Tb;

The first start time slot Ta is determined according to the start time slot of the selection window, the set period value and at least one parameter in the PDB;

The lower limit value of the first initial time slot Ta is n+T_(proc,1)^SL; wherein, n represents the first moment; T_(proc,1)^SL represents the processing delay, and the processing Latency is a preconfigured parameter;

The upper limit value of the first receiving time slot Tb is a first time value and is less than or equal to the starting time slot of the selection window; wherein, the first time value is PDB-k×T, and the T represents For the set period value, the k represents the number of periods, and the k is an integer greater than or equal to 1.
The method according to claim 1, wherein the determining the selection window comprises:

The selection window is determined according to a second parameter; wherein the second parameter includes one or more of the following:

set period value; or

business delay; or

The required amount of resources provided by the media access control MAC layer.
The method according to claim 9, wherein the selection window comprises a second starting time slot Tc and a second receiving time slot Td;

The second initial time slot Tc is determined according to at least one parameter of the set period value, the service delay and the required number of resources provided by the MAC layer;

The upper limit of the second initial time slot Tc is n+k×T, the n represents the first moment, the T represents the set period value, the k represents the number of periods, and the The aforementioned k is an integer greater than or equal to 1;

The upper limit of the second receiving time slot Td is PDB.
A communication device, comprising: a processor and a memory; the memory is used for storing computer instructions; when the communication device is running, the processor executes the computer instructions, so that the communication device executes the right The method of any one of claims 1 to 10.
A computer storage medium, characterized in that the computer storage medium includes computer instructions, which when executed, cause the method of any one of claims 1 to 10 to be performed.
A computer program product, characterized in that the computer program product includes computer instructions, which, when the computer instructions are executed, cause the method of any one of claims 1 to 10 to be executed