WO2023206322A1

WO2023206322A1 - Transmission resource selection method, apparatus, device, and storage medium

Info

Publication number: WO2023206322A1
Application number: PCT/CN2022/090141
Authority: WO
Inventors: 王昊; 丁伊
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-11-02

Abstract

The present application relates to a transmission resource selection method, an apparatus, a device, and a storage medium. A user equipment randomly selects a transmission resource from a first resource set, the first resource set being determined by the user equipment on the basis of a candidate resource set and collected channel occupancy time (COT) information.

Description

Selection methods, devices, equipment and storage media of transmission resources

Technical field

The present application relates to the field of communications, and in particular, to a transmission resource selection method, device, equipment and storage medium.

Background technique

With the development of the field of communication technology, user equipment can not only communicate with network equipment, but also directly communicate with other user equipment using sidelink transmission technology (Sidelink, SL for short). For example, the above-mentioned device-to-device direct communication method used in the Internet of Vehicles system can have higher spectrum efficiency and lower transmission delay.

In direct device-to-device communication, user devices can randomly select resources from a resource pool. When user equipment communicates on unlicensed spectrum, it needs to perform "Listen before talk" (LBT) channel detection after selecting resources. The success of LBT determines whether the user equipment can use the selected resources. Perform data transfer.

Contents of the invention

Embodiments of the present application provide a transmission resource selection method, device, equipment, and storage medium.

The first aspect is to provide a transmission resource selection method, including:

The transmission resources are randomly selected from the first resource set; the first resource set is determined by the user equipment based on the candidate resource set and the collected channel occupancy time COT information.

In one embodiment, the above method further includes:

Screen the candidate resource set according to the COT information to obtain the first resource set.

In one embodiment, the candidate resource set is filtered based on the COT information to obtain the first resource set, including:

Determine whether the collected COT information contains available COT information;

If so, filter the candidate resource set according to the available COT information to obtain the first resource set.

In one embodiment, the above method further includes:

If no COT information is collected, or the collected COT information does not contain available COT information, a transmission resource is randomly selected from the candidate resource set.

In one embodiment, the channel access priority indicated by the available COT information is less than or equal to the channel access priority of the user equipment.

In one embodiment, the first resource set is obtained by the higher layer of the user equipment filtering the candidate resource set reported by the physical layer based on the COT information reported by the physical layer.

In one embodiment, the COT information reported by the physical layer to the higher layer is COT information collected by the user equipment.

In one embodiment, the COT information reported by the physical layer to the higher layer is the available COT information among the collected COT information.

Select one of the available COT information from the COT information reported by the physical layer through the upper layer;

In the candidate resource set, one of the candidate resources within the COT range indicated by the available COT information forms a first resource set.

In one embodiment, one of the above available COT information is the available COT information that satisfies the preset first condition.

In one embodiment, the above-mentioned first condition is that the remaining duration of the range indicated by the COT information is the longest; the remaining duration is the duration between the end time slot corresponding to the COT information and the current time slot.

The candidate resources within the COT range indicated by each available COT information in the candidate resource set are composed into a first resource set.

In one embodiment, the COT information reported by the physical layer to the higher layer is one of the available COT information among the collected COT information.

In one embodiment, one of the above available COT information is determined by the physical layer of the user equipment in the collected COT information.

The candidate resources in the candidate resource set within the COT range indicated by one of the available COT information are composed into the first resource set.

In one embodiment, the first resource set is obtained by the physical layer of the user equipment based on the candidate resource set and COT information.

Select one of the available COT information from the collected COT information through the physical layer;

Through the physical layer, the candidate resources in the candidate resource set within the COT range indicated by each available COT information are composed into a first resource set.

In one embodiment, the resource set reported by the physical layer to the higher layer includes a first resource set and a candidate resource set.

In one embodiment, the above-mentioned randomly selecting transmission resources from the first resource set includes:

When the ratio of the number of resources in the first resource set to the number of candidate resource sets is greater than or equal to the first threshold, transmission resources are randomly selected from the first resource set; wherein the first threshold is less than 1.

In one embodiment, the above method further includes:

When the ratio of the number of resources in the first resource set to the number of candidate resource sets is less than the first threshold, a transmission resource is randomly selected from the candidate resource set.

In one embodiment, the first threshold is a parameter configured on the network side, or the first threshold is a preconfigured parameter.

In one embodiment, the resource set reported by the physical layer to the higher layer is a first resource set.

In one embodiment, whether the transmission resource is randomly selected from the first resource set depends on the user equipment implementation.

In the second aspect, a device for selecting transmission resources is provided, including:

A transmission module, configured to randomly select transmission resources from a first resource set; the first resource set is determined by the user equipment based on the candidate resource set and the collected channel occupancy time COT information.

In a third aspect, a user equipment is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the steps of the transmission resource selection method in the first aspect are implemented.

A fourth aspect provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the transmission resource selection method in the first aspect are implemented.

In the above transmission resource selection method, device, equipment and storage medium, the user equipment randomly selects transmission resources from the first resource set; wherein the first resource set is the user equipment based on the candidate resource set and the collected channel occupancy time COT information. definite. When the user equipment performs resource selection or reselection, the user equipment adds a step of determining the first resource set after obtaining the candidate resource set, and then can randomly select transmission resources in the first resource set. Since the above first resource set is determined based on the candidate resource set and the collected COT information, the above COT information is shared by other user equipment after successful LBT detection. Based on this, the user equipment can share the resources of other user equipment, which improves Resource utilization. In addition, user equipment transmits data through resources shared by other user equipment, which can also prevent other user equipment from causing resource preemption by WiFi users when data transmission on the unlicensed frequency band is interrupted, improving the reliability of other user equipment's communication in the unlicensed frequency band. . Furthermore, when the user equipment performs LBT detection based on resources shared by other user equipment, the probability that the above shared resources are monitored as idle resources is relatively high, thereby improving the LBT success rate; when the user equipment selects resources shared by other user equipment, LBT detection can be performed by monitoring for a fixed duration, and the corresponding monitoring duration is shorter, further improving the LBT success rate.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is an application environment diagram of the transmission resource selection method in one embodiment of the present application;

Figure 2 is a schematic flowchart of a transmission resource selection method in an embodiment of the present application;

Figure 3 is a schematic flowchart of a method for selecting transmission resources in an embodiment of the present application;

Figure 4 is a schematic diagram of a candidate resource set in an embodiment of the present application;

Figure 5 is a schematic diagram of a first resource set in an embodiment of the present application;

Figure 6 is a schematic diagram of a first resource set in an embodiment of the present application;

Figure 7 is a schematic diagram of a first resource set in an embodiment of the present application;

Figure 8 is a schematic flowchart of a method for selecting transmission resources in an embodiment of the present application;

Figure 9 is a schematic flowchart of a transmission resource selection method in an embodiment of the present application;

Figure 10 is a schematic flowchart of a transmission resource selection method in an embodiment of the present application;

Figure 11 is a structural block diagram of a transmission resource selection device in an embodiment of the present application;

Figure 12 is a schematic structural diagram of user equipment in an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

The transmission resource selection method provided by the embodiments of this application can be applied to the field of communication technology. Figure 1 is a schematic diagram of an application scenario of the transmission resource selection method provided by an embodiment of the present application. The communication system may include at least one network device 100 and one or more user devices. The first user device 200 and the second user device 300 in Figure 1 may communicate with the network device 100 respectively; the first user device 200 may communicate through the third user device 100 . The second user equipment 300 is connected to the network, and Sidelink communication can be performed between the first user equipment 200 and the second user equipment 300.

Wherein, the above-mentioned network device 100 can be any device with wireless transceiver function. Including but not limited to: base station NodeB, evolved base station eNodeB, base station in the fifth generation (5G) communication system, base station or network equipment in future communication system, access node in WiFi system, wireless relay nodes, wireless backhaul nodes, etc. The network device 100 may also be a wireless controller in a cloud radio access network (CRAN) scenario. The network device 100 may also be a small station, a transmission node (transmission reference point, TRP), a road side unit (road side unit, RSU), etc. The embodiments of the present application do not limit the specific technology and specific device form used by the above-mentioned network device 100.

The above-mentioned user equipment may be a device with a wireless transceiver function, and may be, but is not limited to, a handheld, wearable, or vehicle-mounted device. The user equipment may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, or a wireless terminal in industrial control (industrial control) , wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, smart cities ( Wireless terminals in smart cities, wireless terminals in smart homes, etc. The embodiments of this application do not limit application scenarios.

In 5GNR (New Radio, New Radio), when user equipment performs sidelink communication, there are two main modes for selecting transmission resources: The first mode is for the user equipment to obtain the transmission resources configured by the network device to use the transmission resources. Perform data transmission on the sidelink; the second mode is for the user equipment to randomly select transmission resources in the resource pool. Taking the second mode as an example, when the user equipment selects or reselects resources, it can determine a resource set, and then perform a resource exclusion mechanism on the above resource set based on the monitored first sideline control information and unlistened time slots. Obtain a set of candidate resources to avoid resource conflicts with other user devices.

When user equipment communicates in an unlicensed frequency band, it needs to perform LBT detection on the selected transmission resources. In the traditional method, when the user equipment performs LBT, it first monitors the channel within the time period of Td. After monitoring that all monitoring time slots in this time period are idle, it then performs the backoff process for detection; in the above detection process If one of the monitoring time slots is busy, LBT fails. If LBT fails, the transmission resource cannot be used for data transmission.

In response to the above problems, embodiments of the present application provide a transmission resource selection method, which can solve the problem that after the user equipment selects the transmission resource, the LBT detection success rate is low and data transmission cannot be performed.

The technical solution of the present application will be described in detail below with specific examples. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

Figure 2 is a flow chart of a transmission resource selection method in an embodiment. The transmission resource selection method in this embodiment is described by taking the user equipment running in Figure 1 as an example. As shown in Figure 2, the above-mentioned transmission resource selection method includes the following steps:

S102. Obtain the first resource set; wherein the first resource set is determined by the user equipment based on the candidate resource set and the collected channel occupancy time COT information.

When the user equipment triggers resource selection or reselection, a resource selection window and a listening window can be determined according to the triggering time slot of resource selection or reselection, and the resources corresponding to the resource selection window are determined as a resource set; further , the user equipment can determine the non-listening time slot of the user equipment according to the listening window and the first sideline control information sent by other user equipment, and then execute the resource set based on the above-mentioned non-listening time slot and the first sideline control information. Exclude the mechanism to obtain a set of candidate resources.

When other user equipment performs LBT and successfully accesses the channel, the time it occupies the channel can become the Channel Occupancy Time (COT). The COT corresponding to the user equipment has a maximum duration limit, and the above maximum duration is related to the channel access priority of the user equipment. Other user equipment may not need continuous data transmission within its corresponding COT and can share resources by sending COT information. The COT information sent by the same user equipment can be received by one user equipment or by multiple user equipments, which is not limited here.

The user device can collect COT information sent by one device or can collect COT information sent by multiple devices, which is not limited here.

After obtaining the candidate resource set and the collected COT information, the user equipment can process the candidate resource set according to the collected COT information to obtain the first resource set. The resources in the first resource set may be the intersection of the candidate resource set and the resource range indicated by the COT information, or a subset of the intersection of the candidate resource set and the resource range indicated by the COT information, which is not limited here. .

In an implementation manner, the user equipment can filter the candidate resource set according to the COT information to obtain the first resource set. The user equipment can filter the candidate resource set according to each collected COT information, or can filter the candidate resource set according to one of the collected COT information, which is not limited here. The user equipment may determine the resource range indicated by the COT information based on the collected COT information, and then determine the intersection of the resource range and the candidate resource set to obtain the first resource set. Alternatively, the user equipment may determine whether each resource in the candidate resource set is within the resource range indicated by the COT information, and then form the first resource set with the resources falling within the resource range.

In another implementation manner, before the user equipment filters the candidate resource set according to the COT information, the user equipment may first determine the availability of the COT information. The user equipment can determine whether the collected COT information contains available COT information, and if so, filter the candidate resource set according to the available COT information to obtain the first resource set. The above available COT information may refer to COT information in which the number of idle resources included in the resource range indicated by the COT information is greater than or equal to the preset threshold, or may be obtained by judgment based on the channel access priority indicated by the COT information. Optionally, the channel access priority indicated by the available COT information may be less than or equal to the channel access priority of the user equipment.

S104. Randomly select transmission resources from the first resource set.

Based on the above steps, the user equipment may randomly select transmission resources from the first resource set.

Since the resources in the first resource set are determined based on the COT information, when the user equipment selects resources shared by other user equipment for LBT, the LBT detection can be completed by monitoring a fixed-length channel. For example, the above listening duration can be Tshort (can be 25 microseconds). If all the listening time slots within Tshort are idle, the user equipment can transmit data through the transmission resource. In another LBT method, the above-mentioned monitoring device can be Tf (can be 16 microseconds). If the monitoring time slots in Tf are all idle, the user equipment can transmit data through this transmission resource. In another LBT method, the user equipment can directly access the channel without performing LBT. This type can be applied when the time interval between this transmission and the last transmission is less than or equal to 16 microseconds.

If the user equipment does not collect COT information, or the collected COT information does not include available COT information, the transmission resource is randomly selected from the candidate resource set.

The user equipment can perform LBT detection on the selected transmission resource and perform data transmission through the transmission resource if LBT is successful.

It should be noted that whether the user equipment randomly selects transmission resources from the first resource set depends on the user equipment implementation. For example, after obtaining the first resource set, the user equipment may choose to randomly select transmission resources from the candidate resource set. In addition, the user equipment may have the ability to obtain the first resource set based on the candidate resource set and COT information. Whether to obtain the first resource set after receiving the COT information depends on the user equipment implementation.

In the above transmission resource selection method, the user equipment randomly selects transmission resources from the first resource set; wherein the first resource set is determined by the user equipment based on the candidate resource set and the collected channel occupancy time COT information. When the user equipment performs resource selection or reselection, the user equipment adds a step of determining the first resource set after obtaining the candidate resource set, and then can randomly select transmission resources in the first resource set. Since the above first resource set is determined based on the candidate resource set and the collected COT information, the above COT information is shared by other user equipment after successful LBT detection. Based on this, the user equipment can share the resources of other user equipment, which improves Resource utilization. In addition, user equipment transmits data through resources shared by other user equipment, which can also prevent other user equipment from causing resource preemption by WiFi users when data transmission on the unlicensed frequency band is interrupted, improving the reliability of other user equipment's communication in the unlicensed frequency band. . Furthermore, when the user equipment performs LBT detection based on resources shared by other user equipment, the probability that the above shared resources are monitored as idle resources is relatively high, thereby improving the LBT success rate; when the user equipment selects resources shared by other user equipment, LBT detection can be performed by monitoring for a fixed duration, and the corresponding monitoring duration is shorter, further improving the LBT success rate.

The above embodiment mainly introduces that after the user equipment obtains the candidate resource set, it can obtain the first resource set according to the candidate resource set and the collected COT information, and randomly selects transmission resources from the first resource set to improve the user equipment's performance in non-operational situations. LBT success rate when transmitting data in licensed frequency bands. The above-mentioned acquisition process of the first resource set may be implemented at the physical layer in the user equipment, or may be implemented at a high level in the user equipment. The following embodiments will specifically describe different implementation methods.

The physical layer of the user equipment can report the candidate resource set and COT information to the higher layer. The COT information reported by the physical layer to the higher layer can be one or multiple. All COT information collected by the user equipment can also be part of the COT information, which is not limited here.

Optionally, the COT information reported by the physical layer to the higher layer is the COT information collected by the user equipment.

Optionally, the COT information reported by the physical layer to the higher layer is the available COT information among the collected COT information. The physical layer of the user equipment can determine the COT information whose channel access priority is lower than or equal to the channel access priority of the user equipment as available COT information based on the channel access priority indicated by the COT information, and then use each available COT information Report to senior management.

Optionally, the COT information reported by the physical layer to the higher layer is one of the available COT information among the collected COT information. Among them, the physical layer of the user equipment can select one available COT information from the multiple collected COT information. When the user equipment selects one of the available COT information among multiple COT information, it can select it randomly or according to the order in which the COT information is received. Optionally, one of the above available COT information is the available COT information that satisfies the preset first condition. The above first condition may be that the channel access priority indicated by the COT information is the highest, or that the channel access priority indicated by the COT information is the lowest, or that the number of resources indicated in the COT information is the largest. Optionally, the first condition is that the remaining duration of the range indicated by the COT information is the longest; the remaining duration is the duration between the end time slot corresponding to the COT information and the current time slot.

In the above transmission resource selection method, the user equipment filters the candidate resource set through the high layer, so that the user equipment can randomly select transmission resources from resources shared by other user equipment, thereby improving the LBT success rate.

When the COT information reported by the physical layer of the user equipment to the higher layer is different, the corresponding first resource set may be obtained in different ways. In the following embodiments, the manner in which the upper layer of the user equipment obtains the first resource set is specifically introduced.

In one embodiment, when the COT information reported by the physical layer to the higher layer is the COT information received by the user equipment, or the available COT information in the collected COT information, the COT information received by the higher layer may be one or more . The way in which the user equipment obtains the first resource set can be seen in Figure 3. The above S102 includes:

S202: Select one of the available COT information from the COT information reported by the physical layer through the upper layer.

The way in which the user equipment selects one of the available COT information through the higher layer can refer to the way in which the physical layer selects one of the available COT information in the above embodiment. Among them, the upper layer of the user equipment can select one available COT information from one or more COT information reported by the physical layer. When the higher layer of the user equipment selects one of the available COT information, it can be selected randomly or determined in the order in which the COT information is received. Optionally, one of the above available COT information is the available COT information that satisfies the preset first condition. The above first condition may be that the channel access priority indicated by the COT information is the highest, or that the channel access priority indicated by the COT information is the lowest, or that the number of resources indicated in the COT information is the largest. Optionally, the first condition is that the remaining duration of the range indicated by the COT information is the longest; the remaining duration is the duration between the end time slot corresponding to the COT information and the current time slot.

S204. In the candidate resource set, combine one of the candidate resources within the COT range indicated by the available COT information into a first resource set.

After the higher layer of the user equipment selects an available COT information, the candidate resources within the COT range indicated by the COT information may form a first resource set.

Taking user equipment UE1 as an example, the COT information reported by the physical layer of UE1 to the higher layer includes COT information sent by user equipment UE2 and user equipment UE3. The candidate resource set A reported by the physical layer of UE1 to the higher layer may include the resources in the diagonally shaded area in Figure 4 . The COT range indicated by the COT information sent by UE2 is resource set 2 in the figure, and the COT range indicated by the COT information sent by UE3 is resource set 3 in the figure. Since the remaining duration of the COT information sent by UE2 is longer than that of the COT information sent by UE3 During the remaining time, the higher layer of the user equipment can select the COT information sent by UE2 to filter the candidate resource set, and form the first resource set from the candidate resources in resource set 2, such as the resources in the shaded part of the square as shown in Figure 5.

In the above transmission resource selection method, the user equipment selects a COT information through the high layer to filter the candidate resource set, which can improve the acquisition efficiency of the first resource set; further, the user equipment selects the COT information with the longest remaining time, which can make the user equipment There are many transmission resources to choose from, which increases the probability of selecting idle resources.

In one embodiment, when the COT information reported by the physical layer to the higher layer is the COT information received by the user equipment, or the available COT information in the collected COT information, the COT information received by the higher layer may be one or more indivual. The higher layer of the user equipment can respectively filter the candidate resource set according to the received COT information, and form the first resource set from the candidate resources within the COT range indicated by each available COT information in the candidate resource set.

Take the user equipment UE1 in Figure 4 as an example. The user equipment UE1 may combine the candidate resources in the resource set 2 and the candidate resources in the resource set 3 to form a first resource set, such as the resources in the square shaded portion as shown in Figure 6 .

In the above transmission resource selection method, the user equipment filters the candidate resource set through multiple COT information, so that the resources shared by multiple user equipments can be used for data transmission. Since the resources shared by different user equipments correspond to different frequency ranges, the above-mentioned Methods can increase the available bandwidth of user devices.

In one embodiment, the COT information reported by the physical layer to the higher layer is one of the available COT information among the collected COT information. After the upper layer obtains an available COT information reported by the physical layer, the candidate resources in the candidate resource set within the COT range indicated by one of the available COT information can form a first resource set.

As shown in Figure 7, the COT information received by the upper layer of the user equipment UE1 is the COT information sent by the user equipment UE2. The UE1 can use the candidate resources in the range resource set 2 indicated by the COT information to form the first resource set, as shown in Figure Resources indicated by the shaded squares in .

In the above transmission resource selection method, the higher layer in the user equipment obtains a COT information reported by the physical layer, and can directly filter the candidate resource set based on the COT information, so that the user equipment can randomly select resources shared by other user equipment, improving LBT Success rate.

Each of the above embodiments respectively introduces the method in which the physical layer of the user equipment reports the candidate resource set and COT information to the higher layer, and obtains the first resource set through the higher layer. The following embodiments introduce how the physical layer of the user equipment obtains the first resource set.

In one embodiment, the first resource set is obtained by the physical layer of the user equipment based on the candidate resource set and COT information. The physical layer may determine the first resource set based on one COT information, or may determine the first resource set based on multiple COT information, which is not limited here.

In one implementation, the physical layer of the user equipment can filter the candidate resource set based on a piece of COT information to obtain the first resource set. As shown in Figure 8, the above S102 includes:

S302: Select one of the available COT information from the collected COT information through the physical layer.

The method for the physical layer of the user equipment to select one COT information from multiple COT information can refer to the above embodiment. When the user equipment selects one of the available COT information among multiple COT information, it can select it randomly or according to the order in which the COT information is received. Optionally, one of the above available COT information is the available COT information that satisfies the preset first condition. The above first condition may be that the channel access priority indicated by the COT information is the highest, or that the channel access priority indicated by the COT information is the lowest, or that the number of resources indicated in the COT information is the largest. Optionally, the first condition is that the remaining duration of the range indicated by the COT information is the longest; the remaining duration is the duration between the end time slot corresponding to the COT information and the current time slot.

S304. Compose a first resource set from one of the candidate resources in the candidate resource set that is within the COT range indicated by the available COT information.

After selecting one available COT information, the physical layer of the user equipment may form a first resource set from candidate resources within the COT range indicated by each available COT information in the candidate resource set. The above-mentioned method of the physical layer screening the candidate resource set based on a piece of COT information is similar to the way that the upper layer receives a piece of COT information to screen the candidate resource set. Please refer to the corresponding embodiment in Figure 7 and will not be described in detail here.

In another implementation, the physical layer of the user equipment can also filter the candidate resource set based on the collected multiple available COT information. The method of determining the first resource set is the same as in the above embodiment based on the high-level information reported by the physical layer. The method of screening the candidate resource set by multiple COT information is similar and can be referred to the corresponding embodiment in Figure 6, which will not be described in detail here.

In the above transmission resource selection method, the user equipment filters the candidate resource set through the physical layer to obtain the first resource set, so that the user equipment can randomly select transmission resources from resources shared by other user equipment, thereby improving the LBT success rate.

After the physical layer of the user equipment obtains the first resource set, whether to report the first resource set to the higher layer depends on the user equipment implementation. The resource set reported by the physical layer of the user equipment to the higher layer can be in different ways.

Optionally, the resource set reported by the physical layer to the higher layer can be a candidate resource set, and the higher layer can randomly select transmission resources from the candidate resource set.

Optionally, the resource set reported by the physical layer to the higher layer includes a first resource set and a candidate resource set. The higher layer may randomly select transmission resources from the first resource set, or randomly select transmission resources from the candidate resource set. How to select depends on the user equipment implementation. Optionally, a higher layer of the user equipment may make a selection based on the candidate resource set and the number of resources in the first resource set. The higher layer of the user equipment may randomly select transmission resources from the first resource set when the ratio of the number of resources in the first resource set to the number of candidate resource sets is greater than or equal to the first threshold; wherein the first threshold is less than 1. When the ratio of the number of resources in the first resource set to the number of candidate resource sets is less than the first threshold, a transmission resource is randomly selected from the candidate resource set. Wherein, the above-mentioned first threshold is a parameter configured on the network side, or the first threshold is a pre-configured parameter.

Optionally, the resource set reported by the physical layer to the higher layer is the first resource set, and the higher layer can randomly select transmission resources from the first resource set.

In one embodiment, a transmission resource selection method is provided, as shown in Figure 9, including:

S402. The physical layer of the user equipment filters the candidate resource set according to the COT information and obtains the first resource set;

S404. The physical layer of the user equipment reports the first resource set to the higher layer;

S406. The higher layer of the user equipment randomly selects transmission resources from the first resource set.

The above-mentioned transmission resource selection method, its implementation principles and technical effects can be found in the above-mentioned embodiments, and will not be described in detail here.

In one embodiment, a transmission resource selection method is provided, as shown in Figure 10, including:

S502. The physical layer of the user equipment reports the candidate resource set and the collected COT information to the higher layer;

S504. The upper layer of the user equipment filters the candidate resource set according to the COT information and obtains the first resource set;

S506. The higher layer of the user equipment randomly selects transmission resources from the first resource set.

It should be understood that although each step in the flowchart of Figure 2-10 is shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated in this article, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 2-10 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times. These sub-steps or stages The order of execution is not necessarily sequential, but may be performed in turn or alternately with other steps or sub-steps of other steps or at least part of the stages.

In one embodiment, a device for selecting transmission resources is provided. As shown in Figure 11, the above device includes:

The transmission module 10 is configured to randomly select transmission resources from a first resource set; the first resource set is determined by the user equipment based on the candidate resource set and the collected channel occupancy time COT information.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically configured to: filter the candidate resource set according to the COT information to obtain the first resource set.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically used to: determine whether the collected COT information contains available COT information; if so, filter the candidate resource set according to the available COT information to obtain The first collection of resources.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is also used to: if no COT information is collected, or the collected COT information does not contain available COT information, randomly select from the candidate resource set. Transport resources.

In one embodiment, based on the above embodiment, the channel access priority indicated by the COT information is less than or equal to the channel access priority of the user equipment.

In one embodiment, based on the above embodiment, the first resource set is obtained by the upper layer of the user equipment filtering the candidate resource set reported by the physical layer based on the COT information reported by the physical layer.

In one embodiment, based on the above embodiment, the COT information reported by the physical layer to the higher layer is the COT information collected by the user equipment.

In one embodiment, based on the above embodiment, the COT information reported by the physical layer to the higher layer is the available COT information among the collected COT information.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically configured to: select one of the available COT information from the COT information reported by the physical layer through the upper layer; in the candidate resource set, select one of the available COT information The candidate resources within the COT range indicated by the information constitute the first resource set.

In one embodiment, based on the above embodiment, one of the available COT information is the available COT information that satisfies the preset first condition.

In one embodiment, based on the above embodiment, the first condition is that the remaining duration of the range indicated by the COT information is the longest; the remaining duration is the duration between the end time slot corresponding to the COT information and the current time slot.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically configured to form a first resource set from candidate resources within the COT range indicated by each available COT information in the candidate resource set.

In one embodiment, based on the above embodiment, the COT information reported by the physical layer to the higher layer is one of the available COT information among the collected COT information.

In one embodiment, based on the above embodiment, one of the available COT information is determined by the physical layer of the user equipment in the collected COT information.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically configured to form a first resource set from candidate resources within the COT range indicated by one of the available COT information in the candidate resource set.

In one embodiment, based on the above embodiment, the first resource set is obtained by the physical layer of the user equipment based on the candidate resource set and COT information.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically configured to: select one of the available COT information among the collected COT information through the physical layer; indicate one of the available COT information in the candidate resource set The candidate resources within the COT range constitute the first resource set.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically configured to: use the physical layer to form a first resource set from candidate resources within the COT range indicated by each available COT information in the candidate resource set.

In one embodiment, based on the above embodiment, the resource set reported by the physical layer to the higher layer includes a first resource set and a candidate resource set.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is specifically configured to: when the ratio of the number of resources in the first resource set to the number of candidate resource sets is greater than or equal to the first threshold, transfer data from the first resource set to Randomly select transmission resources; wherein, the first threshold is less than 1.

In one embodiment, based on the above embodiment, the above-mentioned transmission module 10 is also configured to: when the ratio of the number of resources in the first resource set to the number of candidate resource sets is less than the first threshold, randomly select from the candidate resource set. Transport resources.

In one embodiment, based on the above embodiment, the first threshold is a parameter configured on the network side, or the first threshold is a preconfigured parameter.

In one embodiment, based on the above embodiment, the resource set reported by the physical layer to the higher layer is the first resource set.

In one embodiment, based on the above embodiment, whether to randomly select transmission resources from the first resource set depends on user equipment implementation.

The implementation principles and technical effects of the transmission resource selection device provided by the above embodiment are similar to those of the above method embodiment, and will not be described again here.

The division of each module in the above transmission resource selection device is only for illustration. In other embodiments, the transmission resource selection device can be divided into different modules as needed to complete all or part of the above transmission resource selection device. Function.

For specific limitations on the transmission resource selection means, please refer to the above limitations on the transmission resource selection method, which will not be described again here. Each module in the above-mentioned transmission resource selection device may be implemented in whole or in part by software, hardware, or combinations thereof. Each of the above modules may be embedded in or independent of the processor of the computer device in the form of hardware, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a user equipment is provided, the internal structure diagram of which can be shown in Figure 12. The user equipment includes a processor, memory, network interface, display screen and input device connected through a system bus. Wherein, the processor of the user equipment is used to provide computing and control capabilities. The memory of the user equipment includes non-volatile storage media and internal memory. The non-volatile storage medium stores operating systems and computer programs. This internal memory provides an environment for the execution of operating systems and computer programs in non-volatile storage media. The network interface of the user equipment is used to communicate with external terminals through a network connection. The computer program, when executed by the processor, implements a transmission resource selection method. The display screen of the user equipment may be a liquid crystal display or an electronic ink display. The input device of the user equipment may be a touch layer covered on the display screen, or may be a button, trackball or touch pad provided on the user equipment shell. , it can also be an external keyboard, trackpad or mouse, etc.

Those skilled in the art can understand that the structure shown in Figure 12 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the network equipment or terminal to which the solution of the present application is applied. Specific network A device or terminal may include more or fewer components than shown in the figures, or some combinations of components, or have a different arrangement of components.

The implementation of each module in the transmission resource selection device provided in the embodiment of the present application may be in the form of a computer program. The computer program can be run on a terminal or on a server. The program modules formed by the computer program can be stored in the memory of the terminal or server. When the computer program is executed by the processor, the steps of the methods described in the embodiments of the present application are implemented.

In one embodiment, a user equipment is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, it implements the steps of implementing the above transmission resource selection method.

The implementation principles and technical effects of the user equipment provided by the above embodiments are similar to those of the above method embodiments, and will not be described again here.

An embodiment of the present application also provides a computer-readable storage medium. One or more non-volatile computer-readable storage media containing computer-executable instructions. When the computer-executable instructions are executed by one or more processors, the processors perform the steps of the above-mentioned transmission resource selection method.

The implementation principles and technical effects of the computer-readable storage medium provided by the above embodiments are similar to those of the above method embodiments, and will not be described again here.

A computer program product containing instructions that, when run on a computer, cause the computer to perform a method of selecting a transmission resource.

Any reference to memory, storage, database or other media used herein may include non-volatile and/or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which acts as external cache memory. By way of illustration, and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Synchlink DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The above embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the patent scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

A method for selecting transmission resources, which is characterized by including:

The transmission resources are randomly selected from the first resource set; the first resource set is determined by the user equipment based on the candidate resource set and the collected channel occupancy time COT information.
The method of claim 1, further comprising:

Filter the candidate resource set according to the COT information to obtain the first resource set.
The method according to claim 2, wherein filtering the candidate resource set according to the COT information to obtain the first resource set includes:

Determine whether the collected COT information contains available COT information;

If so, filter the candidate resource set according to the available COT information to obtain the first resource set.
The method of claim 3, further comprising:

If no COT information is collected, or the collected COT information does not include available COT information, then a transmission resource is randomly selected from the candidate resource set.
The method according to claim 3 or 4, characterized in that the channel access priority indicated by the available COT information is less than or equal to the channel access priority of the user equipment.
The method according to any one of claims 2 to 5, characterized in that the first resource set is a set of candidate resources reported by the physical layer based on the COT information reported by the higher layer of the user equipment. acquired.
The method according to claim 6, wherein the COT information reported by the physical layer to the higher layer is COT information collected by the user equipment.
The method according to claim 6, characterized in that the COT information reported by the physical layer to the higher layer is available COT information among the collected COT information.
The method according to claim 7 or 8, characterized in that filtering the candidate resource set according to the COT information to obtain the first resource set includes:

Select one of the available COT information from the COT information reported by the physical layer through the upper layer;

In the candidate resource set, the candidate resources within the COT range indicated by one of the available COT information are composed into the first resource set.
The method of claim 9, wherein one of the available COT information is available COT information that satisfies a preset first condition.
The method according to claim 10, characterized in that the first condition is that the remaining time length of the COT information indication range is the longest; the remaining time length is the end time slot corresponding to the COT information and the current time slot. duration.
The method according to claim 7 or 8, characterized in that filtering the candidate resource set according to the COT information to obtain the first resource set includes:

The candidate resources in the candidate resource set within the COT range indicated by each available COT information are composed into the first resource set.
The method according to claim 6, wherein the COT information reported by the physical layer to the higher layer is one of the available COT information among the collected COT information.
The method according to claim 13, wherein the one available COT information is determined by the physical layer of the user equipment from the collected COT information.
The method of claim 14, wherein one of the available COT information is available COT information that satisfies a preset first condition.
The method according to claim 15, characterized in that the first condition is that the remaining time length of the COT information indication range is the longest; the remaining time length is the end time slot corresponding to the COT information and the current time slot. duration.
The method according to any one of claims 13 to 16, characterized in that filtering the candidate resource set according to the COT information to obtain the first resource set includes:

The candidate resources within the COT range indicated by one of the available COT information in the candidate resource set are composed into the first resource set.
The method according to any one of claims 2 to 5, characterized in that the first resource set is obtained by the physical layer of the user equipment based on the candidate resource set and the COT information.
The method according to claim 18, wherein filtering the candidate resource set according to the COT information to obtain the first resource set includes:

Select one of the available COT information from the collected COT information through the physical layer;

The candidate resources within the COT range indicated by one of the available COT information in the candidate resource set are composed into the first resource set.
The method of claim 19, wherein one of the available COT information is available COT information that satisfies a preset first condition.
The method according to claim 20, characterized in that the first condition is that the remaining time length of the COT information indication range is the longest; the remaining time length is the end time slot corresponding to the COT information and the current time slot. duration.
The method according to claim 18, wherein filtering the candidate resource set according to the COT information to obtain the first resource set includes:

Through the physical layer, the candidate resources in the candidate resource set within the COT range indicated by each available COT information are composed into the first resource set.
The method according to any one of claims 18 to 22, characterized in that the resource set reported by the physical layer to the higher layer includes the first resource set and the candidate resource set.
The method according to claim 23, characterized in that randomly selecting transmission resources from the first resource set includes:

When the ratio of the number of resources in the first resource set to the number of candidate resource sets is greater than or equal to a first threshold, transmission resources are randomly selected from the first resource set; wherein the first threshold is less than 1.
The method of claim 24, further comprising:

When the ratio of the number of resources in the first resource set to the number of candidate resource sets is less than the first threshold, a transmission resource is randomly selected from the candidate resource set.
The method according to claim 24 or 25, characterized in that the first threshold is a parameter configured on the network side, or the first threshold is a preconfigured parameter.
The method according to any one of claims 18 to 22, characterized in that the resource set reported by the physical layer to the higher layer is the first resource set.
The method according to any one of claims 1 to 27, characterized in that whether to randomly select transmission resources from the first resource set depends on user equipment implementation.
A device for selecting transmission resources, which is characterized by including:

A transmission module, configured to randomly select transmission resources from a first resource set; the first resource set is determined by the user equipment based on the candidate resource set and the collected channel occupancy time COT information.
A user equipment includes a memory and a processor, and a computer program is stored in the memory. It is characterized in that when the processor executes the computer program, the steps of the method described in any one of claims 1 to 28 are implemented. .
A computer-readable storage medium with a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 28 are implemented.