CN112385291A

CN112385291A - Direct connection communication method, device and storage medium

Info

Publication number: CN112385291A
Application number: CN202080002810.4A
Authority: CN
Inventors: 赵群
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-02-19
Anticipated expiration: 2040-10-13
Also published as: WO2022077227A1; CN112385291B

Abstract

The disclosure discloses a direct connection communication method, a direct connection communication device and a storage medium, and belongs to the technical field of wireless communication. The method comprises the following steps: acquiring direct connection communication sidelink resource restriction information; performing sidelink direct communication based on the sidelink resource restriction information; the sidelink resource restriction information is for restricting direct communication procedures associated with direct communication resource selection. When the terminal supports the designated resource selection mode which has the energy-saving effect and can cause resource collision or interference rise, the scheme can reduce the resource collision or interference when the user equipment uses the designated resource selection mode, thereby improving the system performance under the sidelink transmission scene.

Description

Direct connection communication method, device and storage medium

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a direct connection communication method, apparatus, and storage medium.

Background

The direct connection communication (Sidelink) technology is a near field communication technology in which terminals directly connect information via wireless interfaces therebetween.

In the related art, when a terminal performs data transmission through direct connection communication, based on energy saving considerations, a sidelink resource may be randomly selected for data transmission, or a portion of the sidelink resource may be monitored to select a suitable sidelink resource for data transmission.

Disclosure of Invention

The disclosure provides a direct connection communication method, a direct connection communication device and a storage medium. The technical scheme is as follows:

according to a first aspect of the embodiments of the present disclosure, there is provided a direct connection communication method, the method being performed by a user equipment, the method including:

acquiring direct connection communication sidelink resource restriction information;

performing sidelink direct communication based on the sidelink resource restriction information;

the sidelink resource restriction information is for restricting direct communication procedures associated with direct communication resource selection.

According to a second aspect of the embodiments of the present disclosure, there is provided a direct connection communication apparatus, the apparatus being used in a user equipment, the apparatus including:

the restriction information acquisition module is used for acquiring the resource restriction information of the directly-connected communication sidelink;

the communication module is used for carrying out sidelink direct communication based on the sidelink resource limitation information;

According to a third aspect of the embodiments of the present disclosure, there is provided a direct connection communication apparatus, the apparatus being used in a user equipment, the apparatus including:

a processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to:

According to a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, where the computer-readable storage medium contains executable instructions, and a processor in a user equipment invokes the executable instructions to implement the above direct communication method.

According to a fifth aspect of embodiments of the present disclosure, there is provided a computer program product or a computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer readable storage medium, and executes the computer instructions, so that the computer device executes the direct communication method.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the user equipment corresponds to information for limiting a direct connection communication process associated with direct connection communication resource selection, when the user equipment performs sidelink transmission, the user equipment limits the direct connection communication process through the information, and when the user terminal supports a specified resource selection mode (such as a random resource selection mode or a partial monitoring mode) which has an energy-saving effect and can cause resource collision or interference rise, the resource collision or interference when the user equipment uses the specified resource selection mode can be reduced, so that the system performance under a sidelink transmission scene is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating an implementation environment involved with a direct communication method according to an example embodiment;

fig. 2 is a flow diagram illustrating a method of direct communication in accordance with an example embodiment;

fig. 3 is a flow diagram illustrating a method of direct communication in accordance with an example embodiment;

FIG. 4 is a schematic diagram of resource selection and reservation according to the embodiment shown in FIG. 3;

FIG. 5 is a block diagram illustrating a direct communication device in accordance with an exemplary embodiment;

fig. 6 is a schematic structural diagram of a user equipment according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

It is to be understood that reference herein to "a number" means one or more and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The continuous emergence of new internet applications of a new generation puts higher demands on wireless communication technology, driving the continuous evolution of wireless communication technology to meet the demands of applications. Vehicle networking communications is one of the applications that are currently supported by the development of cellular wireless communication networks.

The internet of vehicles communication V2x includes V2V, V2I and V2P. Through supporting between the mobile unit (V2V), between mobile unit and roadside equipment (V2I), the communication between mobile unit and handheld device (V2P), the car networking can effectively promote traffic safety, improves traffic efficiency and richens people's trip and experience. The existing cellular communication technology is utilized to support the communication of the Internet of vehicles, so that the existing base station deployment can be effectively utilized, the equipment overhead is reduced, the service with QoS guarantee is provided more favorably, and the requirement of the Internet of vehicles service is met. Thus, support for vehicle networking V2x communications by cellular networks, namely C-V2x (cellular based V2x), is provided in LTE Rel-14/15. In C-V2x, communication between the vehicle-mounted device and other devices can be relayed through the base station and the core network, that is, communication (UL/DL communication) is performed by using a communication link between the terminal device and the base station in the original cellular network; or directly through a direct link between devices (sidelink communication). Compared with Uu interface communication, sidelink communication has the characteristics of short time delay, low cost and the like, and is very suitable for direct communication between vehicle-mounted equipment and other peripheral equipment with close geographic positions.

The V2x sidelink communication in LTE can only support some Basic V2x applications, such as exchanging Basic security messages (BSM-Basic security messages) like cam (cooperative Awareness messages) or denm (centralized Environmental Notification Message), performing voice broadcast communication, etc. With the recent development of technologies such as autopilot, new requirements are put on the performance of the V2x technology in order to support new V2x services. The use of 5G NR (New Radio) technology to support New V2x communication services and scenarios has been planned by 3GPP as an important element of Rel 16. The 3GPP SA1(Service Requirement) working group has established some new Service requirements that V2x communication needs to meet, including fleet management (Vehicles platform), Extended Sensors (Extended Sensors), Advanced Driving (Advanced Driving), and remote Driving (remote Driving). Overall, NR V2x sidelink is required to provide higher communication rate, shorter communication delay, and more reliable communication quality.

The current 5G V2x technology mainly considers communication between in-vehicle terminals, and demands for terminal forms such as handheld terminals, for example, power saving, are not much.

Both LTE V2x and 5G V2x rely on the listening of ues to reduce interference between nearby ues, i.e. to avoid ues interfering with each other selecting the same time-frequency resource for direct transmission. The user terminal needs to continuously monitor resource reservation information of other user equipment in a monitoring window before resource selection, perform corresponding measurement operation, remove time-frequency resources with larger predicted interference from the resource selection window according to the resource reservation information and the measured value, and select final time-frequency resources used by direct connection transmission from the remaining time-frequency resources.

Continuous monitoring causes a large amount of energy consumption, so for user equipment needing energy saving, a resource selection method for reducing or canceling monitoring is designed. In LTE V2x, energy-saving user equipment is supported to select resources by using a random selection method, in this case, the user equipment does not need to monitor, and completely depends on the randomness of resource selection to avoid collision; a partial listening approach is also supported, in which case the user equipment may listen only for a partial time unit to reduce power consumption. Both methods may cause that the user equipment cannot monitor all resource reservation information, and the energy consumption is reduced while the probability of resource collision is increased.

Similar to LTE V2x, NR Sidelink needs to consider optimization of energy consumption by reducing user listening time. The reduction of the monitoring time also causes the energy-saving user equipment to fail to monitor partial time-frequency resource reservation information of other user equipment, and causes the problems of increased resource collision, increased interference and the like. In the LTE V2x, only the handheld terminal is considered to save energy, and only data transmission is needed as compared with a vehicle-mounted terminal, and the density of the user equipment is relatively low and the data traffic is small. However, in NR Sidelink, PS and business scenarios are also involved, and therefore, the system performance is greatly affected by resource collision or interference when terminals use Sidelink.

In contrast, in the embodiments related to the present disclosure, a scheme is shown that a process of selecting sidelink resources and performing sidelink transmission by using a specified resource selection manner (for example, the random resource selection manner based on energy saving consideration or the partial monitoring manner described above) is limited, so as to reduce collision or interference of sidelink resources and improve system performance in a sidelink transmission scenario.

Fig. 1 is a schematic diagram illustrating an implementation environment involved in a direct communication method according to some exemplary embodiments, where as shown in fig. 1, the implementation environment may include: several user equipments 110 and base stations 120.

The user equipment 110 is a wireless communication device that supports sidelink transmissions over multiple radio access technologies. For example, the user equipment 110 may support cellular mobile communication technology, such as the 5th generation mobile communication (5G) technology. Alternatively, the user equipment 110 may also support a further next generation mobile communication technology of the 5G technology.

For example, the user device 110 may be a vehicle-mounted communication device, such as a vehicle computer with a wireless communication function, or a wireless communication device externally connected to the vehicle computer.

Alternatively, the user device 110 may be a roadside device, such as a street lamp, a signal lamp or other roadside device with wireless communication function.

Alternatively, the user equipment 110 may also be user terminal equipment such as mobile telephones (or "cellular" telephones) and computers with mobile terminals, e.g., mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted. For example, a Station (STA), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point (ap), a remote terminal (remote terminal), an access terminal (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user terminal (UE). Specifically, for example, the user equipment 110 may be a mobile terminal such as a smart phone, a tablet computer, an e-book reader, or may be a smart wearable device such as smart glasses, a smart watch, or a smart band.

The base station 120 may be a network side device in a wireless communication system. The wireless communication system may also be a 5G system, which is also called a new air interface NR system. Alternatively, the wireless communication system may be a next-generation system of a 5G system.

The base station 120 may be a base station (gNB) adopting a centralized distributed architecture in a 5G system. When the base station 120 adopts a centralized distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A Packet Data Convergence Protocol (PDCP) layer, a Radio Link layer Control Protocol (RLC) layer, and a Media Access Control (MAC) layer are provided in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 120.

The base station 120 and the user equipment 110 may establish a radio connection over a radio air interface. The wireless air interface is based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

Optionally, the wireless communication system may further include a network management device 130.

Several base stations 120 are connected to the network management device 130, respectively. The network Management device 130 may be a Core network device in a wireless communication system, for example, the network Management device 130 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the Network management device may also be other core Network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), or the like. The implementation form of the network management device 130 is not limited in the embodiment of the present disclosure.

Fig. 2 is a flow diagram illustrating a direct communication method according to an example embodiment, which may be performed by a user equipment, such as user equipment 110 in the implementation environment shown in fig. 1. As shown in fig. 3, the method may include the following steps.

In step 201, the direct communication sidelink resource restriction information is acquired.

In step 202, sidelink direct communication is performed based on the sidelink resource restriction information.

Wherein the sidelink resource restriction information is for restricting direct communication procedures associated with direct communication resource selection.

In one possible implementation, the direct communication procedures associated with the direct communication resource selection are restricted, including at least one of:

limiting the process of determining the direct connection communication resource selection mode;

limiting the process of selecting resources by using a specified resource selection mode;

and limiting the process of directly transmitting the resources selected by using the specified resource selection mode.

In one possible implementation, the sidelink resource restriction information is for a specified direct connection transmission priority or a specified range of direct connection transmission priorities; alternatively, the first and second electrodes may be,

the sidelink resource restriction information is for a specified direct transmission type; alternatively, the first and second electrodes may be,

the sidelink resource restriction information is for a specified type of user equipment for direct communication.

In one possible implementation, when limiting a direct communication process associated with direct communication resource selection, including limiting a process that determines a direct communication resource selection manner, the resource limitation information includes selection manner indication information;

the selection mode indication information indicates that the direct connection resource selection is allowed through the specified resource selection mode or indicates that the direct connection resource selection is not allowed through the specified resource selection mode.

In one possible implementation, the selection mode indication information is pre-configured in the user equipment;

alternatively, the first and second electrodes may be,

the selection mode indication information is obtained by receiving a downlink control signaling sent by the network side equipment.

In one possible implementation, when limiting a direct communication process associated with direct communication resource selection, including limiting a process of resource selection using a specified resource selection approach, the resource limitation information includes a specified condition corresponding to the specified resource selection approach; the sidelink direct communication based on the sidelink resource restriction information comprises the following steps:

obtaining measurement information through measurement;

when the measurement information meets the specified condition, the specified resource selection mode is used for selecting the direct connection communication resources;

and performing direct connection communication through the selected direct connection communication resource.

In one possible implementation, the specifying that the condition includes that a time interval indicated by the measurement information is greater than a given time interval threshold, the obtaining the measurement information by measurement includes:

obtaining the measurement information by measuring a resource selection time interval; the resource selection time intervals are adjacent in time, and the specified resource selection mode is used for carrying out the interval between the time points corresponding to the resource selection operation.

In a possible implementation manner, the specifying condition includes that a resource selection frequency indicated by the measurement information does not exceed a given frequency threshold, and the obtaining of the measurement information through measurement includes:

obtaining the measurement information by measuring a resource selection frequency; the resource selection frequency is used for indicating the times of selecting resources in the specified duration interval by the specified resource selection mode.

In one possible implementation, the time interval threshold or the frequency threshold is preconfigured in the user equipment;

alternatively, the first and second electrodes may be,

the time interval threshold or the frequency threshold is obtained by receiving a downlink control signaling sent by a network side device.

In a possible implementation manner, the specifying condition includes that the amount of time-frequency resources indicated by the measurement information does not exceed a given threshold of the amount of time-frequency resources, and the obtaining of the measurement information by measurement includes:

and obtaining the measurement information according to the time frequency resource size selected by the appointed resource selection mode.

In a possible implementation manner, the obtaining the measurement information by measuring the size of the time-frequency resource selected by the specified resource selection manner includes:

acquiring a first resource amount of a time-frequency resource selected by the designated resource selection mode in a designated time domain interval;

obtaining a ratio between the first resource amount and an available resource amount, where the available resource amount is a resource amount of a time-frequency resource that is selectable by the user equipment for direct communication in the specified time domain interval;

the measurement information including the ratio is obtained.

In a possible implementation manner, the obtaining a first resource amount of the time-frequency resource selected by the designated resource selection method in the designated time-domain interval includes:

determining the time-frequency resource quantity used for the first transmission of the direct connection data transmission block and selected by the appointed resource selection mode as a first resource quantity of the time-frequency resource selected by the appointed resource selection mode; alternatively, the first and second electrodes may be,

determining the time-frequency resource quantity used for the first transmission and the repeated transmission of the direct connection data transmission block and selected by the appointed resource selection mode as a first resource quantity of the time-frequency resource selected by the appointed resource selection mode; alternatively, the first and second electrodes may be,

determining the time-frequency resource quantity selected by the appointed resource selection mode, which is used for the transmission of the direct connection data transmission block and is subjected to aperiodic resource reservation, as a first resource quantity of the time-frequency resource selected by the appointed resource selection mode; alternatively, the first and second electrodes may be,

and determining all the time-frequency resource quantities selected by the appointed resource selection mode as the first resource quantity of the time-frequency resources selected by the appointed resource selection mode.

when a periodic reservation of resources is made,

determining the time-frequency resource amount of the first reservation period selected by the appointed resource selection mode as a first resource amount of the time-frequency resource selected by the appointed resource selection mode; alternatively, the first and second electrodes may be,

determining the time frequency resource amount of all reserved periods in the specified duration selected by the specified resource selection mode as a first resource amount of the time frequency resource selected by the specified resource selection mode; alternatively, the first and second electrodes may be,

and determining the periodically reserved time-frequency resource amount selected by the appointed resource selection mode as a first resource amount of the time-frequency resource selected by the appointed resource selection mode.

In a possible implementation manner, the time-frequency resource amount threshold is preconfigured in the user equipment;

alternatively, the first and second electrodes may be,

the time frequency resource amount threshold is obtained by receiving a downlink control signaling sent by a network side device.

In one possible implementation, when the resource selection information does not satisfy the specified condition, the method further includes:

selecting the direct connection communication resource by other modes except the appointed resource selection mode;

or, the direct communication transmission is carried out without using the resources selected by the appointed resource selection mode.

In one possible implementation, when limiting a direct connection communication process associated with direct connection communication resource selection, including limiting a process of performing direct connection transmission on a resource selected by using a specified resource selection manner, the sidelink resource limitation information includes transmission parameter range limitation information corresponding to the specified resource selection manner, where the transmission parameter range limitation information includes a transmission power, a modulation and coding strategy MCS value, an occupied frequency resource size, a number of times that repeat transmission can be performed, and a value range of at least one parameter of whether hybrid automatic repeat request HARQ feedback is supported;

performing sidelink direct communication based on sidelink resource restriction information, comprising:

and performing direct communication transmission on the sidelink resource selected by the appointed resource selection mode based on the transmission parameter range limiting information.

In a possible implementation manner, the transmission parameter range limitation information corresponding to the specified resource selection manner is preconfigured in the user equipment;

alternatively, the first and second electrodes may be,

the transmission parameter range limitation information corresponding to the specified resource selection mode is obtained by receiving a downlink control signaling sent by the network side equipment.

In one possible implementation, the specifying the resource selection manner includes: randomly selecting sidelink resources, and listening on a partial time domain and selecting at least one of the sidelink resources.

In summary, in the solution shown in the embodiment of the present application, the user equipment corresponds to information for limiting a direct communication process associated with direct communication resource selection, and when the user equipment performs sidelink transmission, the user equipment limits the direct communication process through the information, and when the user terminal supports a resource selection method (for example, a random resource selection method or a partial monitoring method) that has an energy saving effect and may cause resource collision or interference to rise, the resource collision or interference when the user equipment uses a specified resource selection method can be reduced, so as to improve system performance in a sidelink transmission scenario.

Fig. 3 is a flow diagram illustrating a direct communication method according to an example embodiment, which may be performed by a user equipment, such as user equipment 110 in the implementation environment shown in fig. 1. As shown in fig. 3, the method may include the following steps.

In step 301, resource restriction information of the direct connection communication sidelink is acquired.

Wherein the sidelink resource restriction information is for restricting direct communication procedures associated with the direct communication resource selection.

The direct communication process comprises at least one of the processes of determining a direct communication resource selection mode, selecting resources by using a specified resource selection mode, and performing direct transmission by using the resources selected by the specified resource selection mode.

That is, the direct communication procedures associated with the direct communication resource selection are restricted, including at least one of:

In this embodiment, when there is a first sidelink data block that needs to be transmitted through sidelink in the user equipment, the user equipment may obtain the sidelink resource restriction information.

In the embodiment of the present application, the specified resource selection method is a sidelink resource selection method in which there is a resource collision or interference rise.

In another possible implementation manner, the specified resource selection manner includes randomly selecting a sidelink resource, and monitoring and selecting other sidelink resource selection manners except for the sidelink resource in a partial time domain. The embodiment of the present application does not limit the designated resource selection manner.

In a possible implementation manner, the sidelink resource restriction information is configured based on a frequency band, a resource pool, a cell, a user group, a user, and the like.

The sidelink resource restriction information is preset in the user equipment (for example, may be information specified by a protocol), or the sidelink resource restriction information is preconfigured or dynamically configured to the user equipment by a network side device (such as a base station).

In this embodiment, after acquiring the sidelink resource restriction information, the user equipment may transmit the first sidelink data block on the selected sidelink resource based on the sidelink resource restriction information.

The manner of performing control based on sidelink resource restriction information is different according to different use processes of the specified resource selection manner.

In a possible implementation manner, the resource restriction information includes at least one of selection manner indication information, a specification condition specifying a resource selection manner, and transmission parameter range restriction information specifying the resource selection manner.

The steps of limiting the direct connection communication process based on the selection mode indication information are referred to as the following

steps

302 and 305; the steps of limiting the direct communication process based on the specified condition of the specified resource selection mode are referred to from the following step 303 to step 305; the step of limiting the direct communication process based on the transmission parameter range limitation information specifying the resource selection mode is referred to as the subsequent step 306.

In step 302, when the resource restriction information includes selection mode indication information indicating that direct connection resource selection is allowed by a specified resource selection mode, a direct connection communication resource is selected by the specified resource selection mode.

In an embodiment of the present application, when limiting a direct communication process associated with direct communication resource selection, including limiting a process of determining a direct communication resource selection manner, the resource limitation information includes selection manner indication information.

The selection mode indication information indicates that the direct connection resource selection is allowed or not allowed through the specified resource selection mode.

In one possible implementation, the selection mode indication information is pre-configured in the user equipment; for example, the resource selection scheme configuration information is defined by a protocol, for example, the protocol specifies that a user equipment of a specified type is allowed to use a specified resource selection scheme, or the protocol specifies that a data block of a specified type of service is allowed to use a specified resource selection scheme.

Or, the selection mode indication information is obtained by receiving a downlink control signaling sent by the network side device.

In the embodiment of the application, for the user equipment with both wireless transmission capability and wireless reception capability, the specified resource selection mode can be allowed or not allowed to be used through a configuration/pre-configuration method.

The designated resource selection mode includes resource selection modes optimized for energy saving, such as a random resource selection mode and a resource selection mode for partial monitoring, and may also include other resource selection modes.

In a possible implementation manner, the network side device may configure the resource selection manner configuration information of the user equipment by using a downlink control signaling based on the user equipment, or a downlink control signaling based on a user group, or a downlink control signaling based on a cell.

In the embodiment of the present application, when the user equipment is configured to allow the user equipment to select the time-frequency resource of the direct communication by using the specified resource selection method, if there is a data block that needs to be sent by the direct communication, the user equipment may select the resource by using the specified resource selection method.

The scheme shown in step 302 is to limit whether the user equipment is allowed to use the authority of the specified resource selection manner, so as to avoid causing a large impact on the system.

Step 303, when the resource restriction information includes a specified condition corresponding to a specified resource selection manner, measurement information is obtained by measurement.

In an embodiment of the present application, when limiting a direct communication process associated with direct communication resource selection, including limiting a process of resource selection using a specified resource selection manner, the resource limitation information includes a specified condition corresponding to the specified resource selection manner.

In a possible implementation manner, the measurement information is used to indicate how frequently the user equipment selects the direct connection communication resource using a specified resource selection manner. For example, the measurement information indicates at least one of an interval between two adjacent times of selecting resources by using the specified resource selection method, a number of times of selecting resources by using the specified resource selection method, and a resource amount/resource amount ratio of selecting resources by using the specified resource selection method.

The specified condition includes that the time interval/frequency of use indicated by the measurement information is greater than a specified time interval threshold (i.e. the frequency of use of the specified resource selection mode is limited), and the amount of time-frequency resources indicated by the measurement information does not exceed the specified threshold (i.e. the amount of resources selected by using the specified resource selection mode is limited).

In a possible implementation manner, the obtaining measurement information through measurement includes:

when the specified condition includes that the time interval indicated by the measurement information is greater than a given time interval threshold, obtaining the measurement information through a measurement resource selection time interval; the resource selection time intervals are adjacent in time, and the specified resource selection mode is used for carrying out the interval between the time points corresponding to the resource selection operation.

For example, when a first sidelink data block that needs to be sent by direct communication exists in the user equipment, a resource selection time interval may be obtained to obtain measurement information, where the resource selection time interval is an interval between a current time point and a time point corresponding to a first resource selection operation; the first resource selection operation is a sidelink resource selection operation before the current time point; when the resource selection time interval is greater than a time interval threshold, it is determined that the measurement information satisfies a specified condition.

In a possible implementation manner, when the current resource selection operation is a first resource selection operation on the first sidelink data block, the first resource selection operation is a primary resource selection operation on the second sidelink data block through the specified resource selection manner. The second sidelink data block is a data block which is previous to the first sidelink data block and selects sidelink resources by a specified resource selection mode.

In this embodiment, the ue may limit a time interval between two consecutive data blocks that use the designated resource selection method to select resources, for example, when the ue selects a resource for one data block a using the designated resource selection method, and then a next data block B that needs to be transmitted in a sidelink manner arrives, the ue first determines whether an interval between a current time point and a time point for selecting resources for the data block a (since there may be repeated transmission of the data block a, the time point may be a time point for selecting resources for the data block a in the designated resource selection method for the first time, or a time point for selecting resources for the data block a in the designated resource selection method for the last time, or a time point for selecting resources for the data block a in the designated resource selection method for the ith time, and i is a preset integer value) reaches a threshold, if so, determining that the measurement information meets the specified condition, and subsequently selecting resources for the data block B by using the specified resource selection mode, so that the specified resource selection mode can be prevented from being used for all sidelink data blocks, and the use frequency of the specified resource selection mode is limited.

When the current resource selection operation is a repeated resource selection operation on the first sidelink data block, the first resource selection operation is a last resource selection operation on the first sidelink data block in the specified resource selection mode.

In the embodiment of the present application, one sidelink data block may need to be repeatedly transmitted, and therefore resource selection needs to be repeatedly performed, for which, the user equipment may limit a time interval of resource selection between two adjacent repeated transmissions of the same data block. For example, after the user equipment selects and transmits a resource to a data block a by using a designated resource selection method, if the data block a needs to be repeatedly transmitted, the user equipment first judges whether an interval between a current time point and a time point of last resource selection for the data block a reaches a threshold value, if so, the user equipment determines that the measurement information meets a designated condition, and then reselects the resource for the data block a by using the designated resource selection method, so that the use of the designated resource selection method for all repeated transmission processes of the same data block can be avoided, and the use frequency of the designated resource selection method can be limited.

In one possible implementation, the time interval threshold is preconfigured in the user equipment;

alternatively, the first and second electrodes may be,

the time interval threshold is obtained by receiving a downlink control signaling sent by the network side device.

For example, when the user equipment uses a specified resource selection mode, the minimum time interval between two adjacent resource selections or resource reselections can be configured through pre-configuration or through downlink signaling of the base station. The method avoids the frequent use of the designated resource selection mode by the user equipment for selecting the sidelink resource.

The unit of the time interval may be a physical time unit such as seconds and milliseconds, or the time interval may be a logical time unit such as a frame (frame), a subframe (subframe), a slot (slot), and a symbol (symbol).

In another possible implementation manner, the first resource selection operation is the last sidelink resource selection operation before the current time point, that is, the user equipment limits a time interval between any two adjacent times of sidelink resource selection by the specified resource selection method, so as to limit the frequency of use of the specified resource selection method.

The resource selection time interval may be a time interval of a single measurement, or may be an average or a weighted average of time intervals of multiple measurements. For example, the ue may obtain time intervals of two adjacent time groups before the current time point, where the sidelink resources are selected by the specified resource selection method, average the time intervals of the two adjacent time groups, where the sidelink resources are selected by the specified resource selection method, or perform weighted average (for example, the weight of each time interval is inversely related to the duration from the current time point), so as to obtain the resource selection time interval in the measurement information.

In another possible implementation manner, the obtaining measurement information through measurement includes:

when the specified condition includes that the resource selection frequency indicated by the measurement information does not exceed a given frequency threshold, obtaining the measurement information by measuring the resource selection frequency; the resource selection frequency is used for indicating the times of selecting resources in the specified duration interval by the specified resource selection mode.

In one possible implementation, the frequency threshold is pre-configured in the user equipment;

alternatively, the first and second electrodes may be,

the frequency threshold is obtained by receiving a downlink control signaling sent by a network side device.

In the embodiment of the present application, the maximum number of times that the resource can be selected by using the specified resource selection method in a given time unit (that is, the specified duration interval) may be configured by pre-configuration or downlink signaling of the base station.

and when the specified condition includes that the time frequency resource amount indicated by the measurement information does not exceed a given time frequency resource amount threshold value, the measurement information is obtained by measuring the time frequency resource size selected by the specified resource selection mode.

In the embodiment of the present application, the user equipment may further limit the data transmission size of the time-frequency resource selected by using the specified resource selection manner.

The data transmission size of the time-frequency resource selected by using the designated resource selection mode may be an absolute resource size, that is, a resource amount; alternatively, the data transmission size of the time-frequency resource selected by using the specified resource selection method may also be an absolute resource size, for example, a percentage of the resource amount.

acquiring a first resource amount of a time-frequency resource selected by the designated resource selection mode in a designated time domain interval; obtaining a ratio between the first resource amount and an available resource amount, where the available resource amount is a resource amount of a time-frequency resource that is selectable by the user equipment for direct communication in the specified time domain interval; the measurement information including the ratio is obtained.

alternatively, the first and second electrodes may be,

The user equipment can limit the proportion of resources which can be used for direct communication and are occupied by the resources selected by the appointed resource selection mode within a certain time, namely, the proportion of the resources which are selected by the user equipment by the appointed resource selection mode and are occupied by the resources available to the user equipment cannot exceed a certain threshold value, so that the resource quantity of the resources selected by the user equipment by the appointed resource selection mode is limited.

For example, in the embodiment of the present application, the ue may count the time-frequency resources selected by using the specified resource selection method in a period of time, which account for the proportion of the time-frequency resources available for direct transmission by the ue in all resource pools. The ratio cannot exceed a predetermined threshold. The predetermined threshold value may be determined by a method of pre-configuration or downlink signaling configuration of the base station.

The "resource selection" includes selection of new time-frequency resources for direct transmission, and also includes reselection of originally selected time-frequency resources. For example, the originally selected time-frequency resource cannot accommodate the current data block, or the originally selected time-frequency resource is occupied by other users with higher priority, etc.

Since NR sidelink supports resource reservation for repeated transmission of the same data block by the user equipment and also supports periodic resource reservation for new data blocks coming in the future, when the user equipment performs resource statistics, for the resource selection and reservation conditions in the repeated transmission process of each directly connected data block (i.e., sidelink data block), the time-frequency resources selected by the designated resource selection method can be counted as follows:

mode 1: and counting the time frequency resources selected by the designated resource selection mode and used for the initial transmission of one direct connection data block.

The time frequency resources used for the initial transmission of the directly-connected data block are not reserved, other user equipment based on monitoring cannot avoid the time frequency resources, and the influence on the system performance is the largest, so that the time frequency resources used for the initial transmission of the directly-connected data block can be counted.

Mode 2: and counting the time-frequency resources selected by the resource selection mode and used for direct connection transmission, no matter whether the direct connection transmission is the initial transmission or the retransmission of the data block.

Since the time-frequency resources actually used for direct connection transmission may affect other direct connection transmissions, all the time-frequency resources used for direct connection transmission may be counted.

Mode 3: and counting the time-frequency resources which are selected by the resource selection mode and are directly transmitted by the user equipment or reserved.

Since the reserved resources will also have an impact on other listening-based resource selections, all time-frequency resources for direct transmission and reserved as repeated transmissions can be counted.

Mode 4: and counting all time-frequency resources selected by the resource selection mode, regardless of whether the time-frequency resources are used or reserved by direct transmission of the user equipment.

The method can avoid the influence on other direct connection transmission to the maximum extent.

Please refer to fig. 4, which illustrates a schematic diagram of resource selection and reservation in a transmission process of a sidelink data block according to an embodiment of the present application. As shown in the figure, the user equipment selects five resources, resource 1, resource 2, resource 3, resource 4 and resource 5, for transmission and repeated transmission of one data block, without considering the periodic resource reservation; the direct connection control information transmitted simultaneously with the data transmission can perform resource reservation for the future two retransmissions, that is, when the user equipment uses the resource 1 for the direct connection transmission, the resource reservation can be performed for the resource 2 and the resource 3 at the same time. Assuming that the data block is correctly received by the receiving end after the user equipment transmits the data block twice, the user equipment stops retransmission, that is, only resource 1 and resource 2 are actually used, and resource 3, resource 4 and resource 5 are not used for retransmission.

Then according to mode 1, only resource 1 needs to be counted; according to the mode 2, the resource 1 and the resource 2 need to be counted; according to the mode 3, the resource 1, the resource 2, the resource 3 and the resource 4 need to be counted; while according to mode 4, resources 1 through 5 all need to be counted.

when a periodic reservation of resources is made,

determining the time frequency resource amount of all reserved periods in the specified duration selected by the specified resource selection mode as a first resource amount of the time frequency resource selected by the specified resource selection mode; or

In the embodiment of the present application, for the periodically reserved time frequency resources, statistics may be performed as follows:

mode A: only counting time frequency resources in the first period; because the resources used by the direct transmission in the following period can be reserved by the direct transmission in the first period, the influence is relatively small.

Mode B: counting time frequency resources in a given time length; so as to avoid the direct connection transmission with smaller period value from causing larger influence on the system.

The time length may be obtained through pre-configuration or base station downlink signaling configuration.

Mode C: and counting time frequency resources in all periods. This approach may maximize the statistical impact of resource selection.

The measurement information may indicate other information affecting the selection of the specified resource, besides the time interval, the number of times, and the resource amount/resource amount ratio for the ue to select the resource using the specified resource selection.

For example, the measurement information may further indicate the number of transmission failures after selecting the resource by using a specified resource selection method in a specified time period before the current time point, and correspondingly, the specified condition is that the number of transmission failures indicated by the measurement information is smaller than a threshold number.

The number of transmission failures may be the number of times that the resources are selected by using the designated resource selection method continuously and transmission fails in a designated time period, or the total number of times that the resources are selected by using the designated resource selection method and transmission fails in the designated time period.

In a possible implementation manner, the sending fails after the resource is selected by using the designated resource selection manner, including that after the resource is selected by using the designated resource selection manner and sent, a receiving success response fed back by the receiving end is not received.

In this embodiment of the present application, when the number of times of transmission failure after the user equipment selects resources using the specified resource selection method reaches or exceeds the number threshold, the probability of collision is high when the user equipment transmits using the specified resource selection method, or interference on the selected resources is large, and at this time, the user equipment may not use the specified resource selection method, so as to limit the frequency of use of the specified resource selection method.

And 304, when the measurement information meets the specified conditions, selecting the direct connection communication resources by using a specified resource selection mode.

In the embodiment of the application, when a data block which needs to be sent through direct connection communication exists in user equipment and measurement information obtained by the user equipment through measurement meets specified conditions, the user equipment can select resources for the direct connection data block through a specified resource selection mode.

In the embodiment of the application, when the resource selection information does not meet the specified condition, the user equipment selects the direct connection communication resource through other modes except the specified resource selection mode; or the user equipment does not use the resources selected by the specified resource selection mode to perform direct connection communication transmission.

In one possible implementation, when the vehicle information does not satisfy the specified condition, the user equipment may perform one of the following operations:

1) selecting sidelink resources by other modes except the appointed resource selection mode;

2) deferring transmission of the first sidelink data block;

3) the first sidelink data block is discarded.

In the embodiment of the present application, if the ue cannot satisfy the above-mentioned limitation (i.e. cannot satisfy the specified condition), the ue needs to use another resource selection method to perform resource selection, or defer or abandon data transmission.

In step 305, direct communication is performed over the selected direct communication resource.

In this embodiment of the application, after the user equipment selects the direct connection communication resource through the

above step

302 or 304, or selects the direct connection communication resource through another method other than the specified resource selection method, the user equipment may send the data block using the selected direct connection communication resource.

In step 306, when the sidelink resource restriction information includes the transmission parameter range restriction information corresponding to the specified resource selection method, the direct communication transmission is performed on the sidelink resource selected by the specified resource selection method based on the transmission parameter range restriction information. For example, the ue must perform transmission of direct communication on sidelink resources selected by the specified resource selection manner according to the transmission parameter range.

In this embodiment of the present application, when limiting a direct communication process associated with selection of a direct communication resource, including limiting a process of performing direct transmission on a resource selected by using a specified resource selection manner, the sidelink resource limitation information includes transmission parameter range limitation information corresponding to the specified resource selection manner.

The transmission parameter range limitation information includes a value range of at least one parameter of transmission power, a Modulation and Coding Strategy (MCS) value, an occupied frequency resource size, a number of times of repeated transmission, and whether hybrid automatic repeat request (HARQ) feedback is supported.

alternatively, the first and second electrodes may be,

In the embodiment of the present application, the user equipment may not only limit whether the resource selection can be performed by using the specified resource selection method currently, but also limit the data transmission process after determining that the resource selection is performed by using the specified resource selection method.

That is, after the ue determines to select resources using a specified resource selection method, the transmission parameters on the resources selected using the specified resource selection method may be limited, including but not limited to limiting transmission power, limiting MCS value, limiting the size of occupied frequency resources, limiting the number of times that repeated transmissions may be made, and limiting whether HARQ feedback is supported, etc. That is, the ue limits the value range of the transmission parameters of the data transmission using the time-frequency resource selected by the random resource selection/partial monitoring resource, such as the transmission power, the MCS value, the size of the occupied frequency resource, the number of times of performing the repeated transmission, whether to support HARQ feedback, and the like. The value range can be obtained by the user equipment through a method of pre-configuration or base station downlink control signaling configuration.

In one possible implementation, the sidelink resource restriction information is for a specified priority or a specified range of priorities for direct transmission.

The specified direct connection transmission priority or the specified direct connection transmission priority range refers to that sidelink resource restriction information is configured/indicated based on the direct connection transmission priority or the specified direct connection transmission priority range.

In the embodiment of the present application, it may be limited that only direct connection data with a specified priority or a specified priority range may be resource-selected using a specified resource selection manner. For example, a random resource selection approach may be used only when the priority of the data to be transmitted that triggers resource selection or reselection is above a certain priority threshold; or, an 8-bit bitmap is used to configure the priority of the direct connection data from 1 to 8 respectively to determine whether to allow the random resource selection mode.

Or, in the embodiment of the present application, it may be limited that only the direct connection data with the specified priority or the specified priority range is limited by the specified condition when the specified resource selection manner is used for resource selection. For example, only when the priority of the data to be transmitted, which triggers resource selection or reselection, is lower than a certain priority threshold, is limited by a specified condition when a random resource selection mode is used; or, an 8-bit bitmap is used to configure the priority of the direct connection data from 1 to 8 respectively, and whether the priority is limited by a specified condition when a random resource selection mode is used or not is determined. The restriction by the specified condition means that the direct communication resource selection is performed by using the specified resource selection method or not by using the specified resource selection method, based on whether the specified condition is satisfied or not.

Or, in the embodiment of the present application, it may be limited by a specified condition and/or a transmission parameter range only when the direct connection data with the specified priority or the specified priority range is selected by using the specified resource selection method. For example, only when the priority of the data to be transmitted, which triggers resource selection or reselection, is lower than a certain priority threshold, is limited by a specified condition and/or a transmission parameter range when a random resource selection manner is used; or, an 8-bit bitmap is used to configure the priority of the direct connection data from 1 to 8 respectively, and whether the priority is limited by a specified condition and/or a transmission parameter range when a random resource selection mode is used.

In one possible implementation, the sidelink resource restriction information is for a specified direct transmission type.

The specified direct connection transmission type is that sidelink resource restriction information is configured/indicated based on the specified direct connection transmission type.

In the embodiment of the present application, it may be limited that only direct connection data of a specified direct connection transmission type may use a specified resource selection manner to perform resource selection. The direct connection transmission Type may include unicast, multicast, broadcast, or unicast with HARQ feedback, multicast using Type1 HARQ feedback, multicast using Type2 HARQ feedback, unicast or multicast without HARQ feedback, and the like.

Or, in the embodiment of the present application, it may be limited by a specified condition and/or a transmission parameter range only when the direct connection data of the specified direct connection transmission type is used for resource selection in the specified resource selection manner.

In one possible implementation, the sidelink resource restriction information is for a specified type of direct communication user equipment.

The specified direct communication user equipment type is configured/indicated by sidelink resource restriction information based on the specified direct communication user equipment type.

In the embodiment of the application, it may be limited that only the user equipment of the specified direct communication user equipment type may use the specified resource selection mode. For example, the handheld device is limited to be capable of selecting resources in a random resource selection mode, and the vehicle-mounted device is limited not to be capable of selecting resources in the random resource selection mode.

Or, in the embodiment of the present application, it may be limited that only the user equipment of the specified type of the direct communication user equipment is limited by the specified condition and/or the transmission parameter range when performing resource selection by using the specified resource selection method. For example, when the handheld device is limited to use a random resource selection mode for resource selection, the resource selection is not limited by a specified condition and/or a transmission parameter range; and when the resource selection is performed by limiting the vehicle-mounted equipment by using a random resource selection mode, the resource selection is limited by a specified condition and/or a transmission parameter range.

In this embodiment of the application, the limiting manners shown in the

above steps

302 and 305, 303 to 305, and 306 may be used alone, or the three limiting manners may be used in combination, for example, after the user terminal determines that the specified resource selection manner is allowed to be used through the step 302, it determines whether the measurement information meets the specified condition through the step 303, and after it determines that the measurement information meets the specified condition, it selects the direct connection communication resource through the step 304, and limits the parameter value range used for transmitting the data block on the selected resource through the limiting manner shown in the step 306.

The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.

Fig. 5 is a block diagram illustrating a direct communication apparatus according to an exemplary embodiment, which may be used in the user equipment 110 in the implementation environment shown in fig. 1, as shown in fig. 5, to perform the steps performed by the user equipment in the embodiments shown in fig. 2 or fig. 3. The direct communication device may include:

a limitation information obtaining module 501, configured to obtain direct connection communication sidelink resource limitation information;

a communication module 502, configured to perform sidelink direct communication based on the sidelink resource restriction information.

In one possible implementation, the limiting the direct communication procedures associated with the direct communication resource selection includes at least one of:

the sidelink resource restriction information is for a specified direct connection transmission type; alternatively, the first and second electrodes may be,

the sidelink resource restriction information is for a specified type of direct communication user equipment.

In one possible implementation, when the limiting of the direct communication procedure associated with the direct communication resource selection includes limiting a procedure for determining a direct communication resource selection manner, the resource limitation information includes selection manner indication information;

the selection mode indication information indicates that the direct connection resource selection is allowed through the specified resource selection mode or the direct connection resource selection is not allowed through the specified resource selection mode.

alternatively, the first and second electrodes may be,

In one possible implementation, when the limiting of the direct communication procedure associated with the direct communication resource selection includes limiting a procedure for resource selection using a specified resource selection manner, the resource limitation information includes a specified condition corresponding to the specified resource selection manner; the communication module is used for transmitting the data,

obtaining measurement information through measurement;

when the measurement information meets the specified conditions, the specified resource selection mode is used for selecting direct connection communication resources;

In one possible implementation, the specified condition includes that a time interval indicated by the measurement information is greater than a given time interval threshold; the communication module, when obtaining measurement information by measurement, is configured to,

obtaining the measurement information by measuring a resource selection time interval; the resource selection time intervals are adjacent in time, and the specified resource selection mode is used for carrying out the interval between time points corresponding to the resource selection operation.

In one possible implementation, the specified condition includes that a resource selection frequency indicated by the measurement information does not exceed a given frequency threshold; when measurement information is obtained through measurement, the communication module is configured to obtain the measurement information through measuring a resource selection frequency; the resource selection frequency is used for indicating the times of selecting resources in a specified duration interval in a specified resource selection mode.

alternatively, the first and second electrodes may be,

In a possible implementation manner, the specified condition includes that the amount of time-frequency resources indicated by the measurement information does not exceed a given threshold value of the amount of time-frequency resources; the communication module, when obtaining measurement information by measurement, is configured to,

In one possible implementation manner, the communication module is configured to,

acquiring a first resource amount of the time-frequency resource selected by the designated resource selection mode in a designated time domain interval;

acquiring a ratio of the first resource amount to an available resource amount, where the available resource amount is a resource amount of a time-frequency resource which is selectable by the user equipment for direct communication in the specified time domain interval;

obtaining the measurement information comprising the ratio.

when a periodic reservation of resources is made,

determining the time-frequency resource amount of the first reservation period selected by the designated resource selection mode as a first resource amount of the time-frequency resource selected by the designated resource selection mode; alternatively, the first and second electrodes may be,

In one possible implementation, the time-frequency resource amount threshold is pre-configured in the user equipment;

alternatively, the first and second electrodes may be,

In a possible implementation manner, the communication module is further configured to, when the resource selection information does not satisfy the specified condition,

or, the direct communication transmission is carried out without using the resources selected by the specified resource selection mode.

In a possible implementation manner, when the limitation on the direct connection communication process associated with the selection of the direct connection communication resource includes limitation on a process of performing direct connection transmission on the resource selected by using the specified resource selection manner, the sidelink resource limitation information includes transmission parameter range limitation information corresponding to the specified resource selection manner, where the transmission parameter range limitation information includes a value range of at least one parameter of transmission power, a Modulation and Coding Strategy (MCS) value, an occupied frequency resource size, a number of times that repeat transmission can be performed, and whether hybrid automatic repeat request (HARQ) feedback is supported;

and the communication module is used for carrying out direct connection communication transmission on the sidelink resource selected by the appointed resource selection mode based on the transmission parameter range limiting information.

alternatively, the first and second electrodes may be,

In a possible implementation manner, the specifying the resource selection manner includes: randomly selecting sidelink resources, and listening on a partial time domain and selecting at least one of the sidelink resources.

An exemplary embodiment of the present disclosure also provides a direct connection communication system, including: at least two user equipments and a base station.

The user equipment comprises the direct communication device provided in the embodiment shown in fig. 4.

It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the above functional modules is illustrated, and in practical applications, the above functions may be distributed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

An exemplary embodiment of the present disclosure provides a direct connection communication device, which is capable of implementing all or part of the steps performed by a user equipment in the above embodiments shown in fig. 2 or fig. 3 of the present disclosure, and the direct connection communication device includes: a processor, a memory for storing processor-executable instructions;

wherein the processor is configured to:

The steps executed by the processor in the configuration may refer to the steps executed by the user equipment in the embodiments shown in fig. 2 and fig. 3, and are not described herein again.

The above mainly takes user equipment as an example, and introduces the scheme provided by the embodiment of the present disclosure. It will be appreciated that the user equipment, in order to implement the above-described functions, comprises corresponding hardware structures and/or software modules for performing the respective functions. The disclosed embodiments can be implemented in hardware or a combination of hardware and computer software, in conjunction with the exemplary modules and algorithm steps described in connection with the embodiments disclosed in the disclosure. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

Fig. 6 is a schematic structural diagram of a user equipment according to an exemplary embodiment. The user equipment may be implemented as the user equipment in the system environment shown in fig. 1 and may perform all or part of the steps of the method described above or performed by the user equipment in the embodiments shown in fig. 2 or fig. 3.

The user equipment 600 comprises a communication unit 604 and a processor 602. Processor 602 may also be a controller, and is represented in fig. 6 as "controller/processor 602". The communication unit 604 is configured to support the user equipment to communicate with other network entities (e.g., other user equipment or base stations).

Further, the user equipment 600 may also comprise a memory 603, the memory 603 being adapted to store program codes and data of the user equipment 600.

It will be appreciated that fig. 6 only shows a simplified design of the user equipment 600. In practical applications, the user equipment 600 may comprise any number of processors, controllers, memories, communication units, etc., and all user equipments that can implement the embodiments of the present disclosure are within the scope of the embodiments of the present disclosure.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in embodiments of the disclosure may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The embodiment of the present disclosure further provides a computer storage medium, configured to store computer software instructions for the user equipment, where the computer software instructions include a program designed to execute the direct communication method.

In an exemplary embodiment, a computer program product or computer program is also provided, the computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the methods shown in the various embodiments described above.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for direct communication, the method being performed by a user equipment, the method comprising:

2. The method of claim 1, wherein the restricting direct communication procedures associated with direct communication resource selection comprises at least one of:

3. The method of claim 1,

the sidelink resource restriction information is for a specified direct connection transmission priority or a specified range of direct connection transmission priorities; alternatively, the first and second electrodes may be,

4. The method according to any of claims 1 to 3, wherein when said restricting the direct communication procedures associated with the selection of direct communication resources comprises restricting procedures for determining a direct communication resource selection manner, said resource restriction information comprises selection manner indication information;

5. The method of claim 4,

the selection mode indication information is pre-configured in the user equipment;

alternatively, the first and second electrodes may be,

6. The method according to any of claims 1 to 3, characterized in that when said restricting of direct communication procedures associated with direct communication resource selection comprises restricting of procedures for resource selection using a specified resource selection approach, said resource restriction information comprises specified conditions corresponding to said specified resource selection approach; the performing sidelink direct communication based on the sidelink resource restriction information includes:

obtaining measurement information through measurement;

7. The method of claim 6, wherein the specified condition comprises that a time interval indicated by the measurement information is greater than a given time interval threshold, and wherein the obtaining measurement information by measurement comprises:

8. The method of claim 6, wherein the specified condition comprises that a resource selection frequency indicated by measurement information does not exceed a given frequency threshold, and wherein the obtaining measurement information through measurement comprises:

obtaining the measurement information by measuring a resource selection frequency; the resource selection frequency is used for indicating the times of selecting resources in a specified duration interval in a specified resource selection mode.

9. The method according to claim 6, wherein the specified condition includes that the amount of time-frequency resources indicated by the measurement information does not exceed a given threshold amount of time-frequency resources, and the obtaining measurement information through measurement comprises:

10. The method according to claim 9, wherein the obtaining the measurement information by measuring the size of the time-frequency resource selected by the specific resource selection method comprises:

obtaining the measurement information comprising the ratio.

11. The method according to claim 10, wherein the obtaining the first resource amount of the time-frequency resources selected by the designated resource selection method in the designated time domain interval comprises:

determining the time-frequency resource quantity selected by the appointed resource selection mode, which is used for the transmission of the direct connection data transmission block and is subjected to aperiodic resource reservation, as a first resource quantity of the time-frequency resource selected by the appointed resource selection mode; or

12. The method according to claim 10, wherein the obtaining the first resource amount of the time-frequency resources selected by the designated resource selection method in the designated time domain interval comprises:

when a periodic reservation of resources is made,

13. The method of claim 9,

the time-frequency resource amount threshold is pre-configured in the user equipment;

alternatively, the first and second electrodes may be,

14. The method according to claim 6, wherein when the resource selection information does not satisfy the specified condition, the method further comprises:

15. The method according to any of claims 1 to 3, wherein when the limitation on the direct communication process associated with the selection of the direct communication resource includes limitation on the process of direct transmission of the resource selected by using the specified resource selection manner, the sidelink resource limitation information includes transmission parameter range limitation information corresponding to the specified resource selection manner, and the transmission parameter range limitation information includes a value range of at least one parameter of transmission power, a Modulation and Coding Strategy (MCS) value, an occupied frequency resource size, the number of times of repeated transmission, and whether hybrid automatic repeat request (HARQ) feedback is supported;

the performing sidelink direct communication based on the sidelink resource restriction information includes:

and performing direct communication transmission on the sidelink resources selected by the appointed resource selection mode based on the transmission parameter range limiting information.

16. The method of claim 15,

the transmission parameter range limitation information corresponding to the specified resource selection mode is pre-configured in the user equipment;

alternatively, the first and second electrodes may be,

17. The method of claim 2, wherein the specifying the resource selection comprises: randomly selecting sidelink resources, and listening on a partial time domain and selecting at least one of the sidelink resources.

18. An apparatus for direct communication, the apparatus being for use in a user equipment, the apparatus comprising:

19. The apparatus of claim 18, wherein the restriction of direct communication procedures associated with direct communication resource selection comprises at least one of:

20. The method of claim 18,

21. The apparatus according to any of claims 18 to 20, wherein when said restricting the direct communication procedures associated with the selection of direct communication resources comprises restricting procedures for determining a direct communication resource selection manner, said resource restriction information comprises selection manner indication information;

22. The apparatus of claim 21,

alternatively, the first and second electrodes may be,

23. The apparatus according to any of claims 18 to 20, wherein when said restricting of direct communication procedures associated with direct communication resource selection comprises restricting of procedures for resource selection using a specified resource selection approach, said resource restriction information comprises a specified condition corresponding to said specified resource selection approach; the communication module is used for transmitting the data,

obtaining measurement information through measurement;

24. The apparatus of claim 22, wherein the specified condition comprises a time interval indicated by the measurement information being greater than a given time interval threshold; the communication module, when obtaining measurement information by measurement, is configured to,

25. The apparatus of claim 22, wherein the specified condition comprises that a resource selection frequency indicated by measurement information does not exceed a given frequency threshold; the communication module, when obtaining measurement information by measurement, is configured to,

26. The apparatus according to claim 25, wherein the specified condition comprises that the amount of time-frequency resources indicated by the measurement information does not exceed a given threshold amount of time-frequency resources; the communication module, when obtaining measurement information by measurement, is configured to,

27. The apparatus of claim 26, wherein the communication module is configured to,

obtaining the measurement information comprising the ratio.

28. The apparatus of claim 26, wherein the communication module is configured to,

29. The apparatus of claim 27, wherein the communication module is configured to,

when a periodic reservation of resources is made,

30. The apparatus of claim 26,

alternatively, the first and second electrodes may be,

31. The apparatus of claim 23, wherein the communication module is further configured to, when the resource selection information does not satisfy the specified condition,

32. The apparatus according to any of claims 18 to 20, wherein when the limitation on the direct communication process associated with direct communication resource selection includes limitation on a process of direct transmission of resources selected using the specified resource selection manner, the sidelink resource limitation information includes transmission parameter range limitation information corresponding to the specified resource selection manner, and the transmission parameter range limitation information includes a value range of at least one parameter of transmission power, a Modulation and Coding Strategy (MCS) value, an occupied frequency resource size, a number of times that repeat transmission is possible, and whether hybrid automatic repeat request (HARQ) feedback is supported;

33. The apparatus of claim 32,

alternatively, the first and second electrodes may be,

34. The apparatus of claim 19, wherein the specifying the resource selection comprises: randomly selecting sidelink resources, and listening on a partial time domain and selecting at least one of the sidelink resources.

35. An apparatus for direct communication, the apparatus being for use in a user equipment, the apparatus comprising:

a processor, a memory for storing processor-executable instructions;

wherein the processor is configured to:

36. A computer-readable storage medium containing executable instructions that are invoked by a processor in a user equipment to implement the direct communication method according to any one of claims 1 to 17.