CN111294160B

CN111294160B - Method and device for determining data feedback resources

Info

Publication number: CN111294160B
Application number: CN201910035901.7A
Authority: CN
Inventors: 邓云
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2022-07-01
Anticipated expiration: 2039-01-15
Also published as: CN111294160A

Abstract

The disclosure relates to a method and a device for determining data feedback resources. The method is applied to a first terminal and comprises the following steps: receiving first data sent by a second terminal; determining a feedback resource range of a second terminal; determining target feedback resources required for information feedback of the first data according to the feedback resource range and the position of the first terminal; and sending feedback information to the second terminal based on the target feedback resource, wherein the feedback information is used for indicating the receiving state of the first data by the first terminal. The method and the device for determining the data feedback resources provided by the embodiment of the disclosure have a wide application range and low requirements on the equipment of the first terminal, so that the first terminal can accurately determine the target feedback resources according to the position of the first terminal under various scenes of V2X, the sent feedback information can be received by the second terminal, and the adverse effect of the use of the feedback resources on Uu interface transmission is reduced.

Description

Method and device for determining data feedback resources

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for determining data feedback resources.

Background

The internet of vehicles system aims to achieve the purposes of improving road safety, improving traffic efficiency and providing rich streaming media services for users through communication between vehicles and other terminal devices (V2X). The other terminal devices include a Vehicle, a handheld terminal, a Road Side Unit (RSU), a Network, and the like, and the communication between the Vehicle and the other terminal devices includes a Vehicle to Vehicle (V2V), a Vehicle to pedestrian (V2P), a Vehicle to Network (V2N), and the like, and V2V, V2P, and V2I are collectively referred to as V2X.

The fifth-generation mobile communication refers to a fifth-generation mobile phone communication standard, also called fifth-generation mobile communication technology, foreign language abbreviation: and 5G. The 5G is also called New Radio (NR), and the application of V2X can be supported in the 5G. NR has the advantages of high rate, low delay, large coverage, and support for high-speed mobile terminals. In Long Term Evolution (LTE) technology, Direct Communication (or called Sidelink Communication) is introduced, and there may be an interface PC5 for Direct Communication between terminal devices. Direct communication between the vehicle and other terminal devices can be performed through the PC5 interface. The introduction of the V2X technology and the introduction of the V2X with feedback are being discussed in NR, but in the related art, the way of selecting feedback resources for direct communication for vehicles or other terminal devices cannot meet different scenarios of V2X, and the requirements for terminals are high.

Disclosure of Invention

In view of this, the present disclosure provides a method and an apparatus for determining a data feedback resource, so as to adapt to various scenarios of V2X and reduce a device requirement for a terminal.

According to an aspect of the present disclosure, there is provided a method for determining data feedback resources, the method being applied to a first terminal, the method including:

receiving first data sent by a second terminal;

determining a feedback resource range where the second terminal is located;

determining target feedback resources required for information feedback of the first data according to the feedback resource range and the position of the first terminal;

and sending feedback information to the second terminal based on the target feedback resource, wherein the feedback information is used for indicating the receiving state of the first data by the first terminal.

For the above method, in a possible implementation manner, determining the feedback resource range where the second terminal is located includes:

receiving a first control signaling which is sent by a second terminal and corresponds to the first data, wherein the first control signaling comprises a first feedback resource range where the second terminal is located and an appointed feedback resource;

determining a first feedback resource range indicated in the first control signaling as the feedback resource range,

determining a target feedback resource required for information feedback of the first data according to the feedback resource range and the position of the first terminal, wherein the determining comprises:

determining a specified feedback resource indicated in the first control signaling as the target feedback resource when the first terminal is determined to be within the feedback resource range according to the position of the first terminal,

the first feedback resource range comprises at least one of a coverage of a cell where the second terminal is located, a coverage of at least one cell establishing a feedback resource configuration protocol with the cell, a coverage of an area where the second terminal is located, and a coverage of at least one area establishing a feedback resource configuration protocol with the area.

determining a second feedback resource range in which the second terminal is located according to at least one of the cell or the area in which the second terminal is located, and determining the second feedback resource range as the feedback resource range;

receiving a second control signaling which is sent by a second terminal and corresponds to the first data, wherein the second control signaling comprises a designated feedback resource;

determining the specified feedback resource indicated in the second control signaling as the target feedback resource when the first terminal is determined to be in the feedback resource range according to the position of the first terminal,

the second feedback resource range includes at least one of a coverage of a cell where the second terminal is located and a coverage of an area where the second terminal is located.

For the above method, in a possible implementation manner, determining a target feedback resource required for performing information feedback on the first data according to the feedback resource range and the position of the first terminal, further includes:

when the first terminal is determined to be out of the feedback resource range according to the position of the first terminal, judging whether the first terminal is in a residual coverage range according to the position of the first terminal;

determining a target feedback resource from a feedback resource pool corresponding to the remaining coverage range when the first terminal is determined to be within the remaining coverage range,

wherein the remaining coverage range includes at least one of a coverage range excluding the feedback resource range in a cell coverage range and a coverage range excluding the feedback resource range in an area coverage range, the cell coverage range includes coverage ranges of a plurality of cells, and the area coverage range includes coverage ranges of a plurality of areas.

and when the first terminal is determined to be out of the range of the feedback resources and out of the residual coverage range according to the position of the first terminal, determining a target feedback resource from a preset feedback resource pool.

and when the first terminal is determined to be in the feedback resource range according to the position of the first terminal, determining a target feedback resource from a feedback resource pool corresponding to the feedback resource range.

For the above method, in one possible implementation, the method further includes:

determining a third feedback resource range in which the first terminal is located according to the position of the first terminal;

sending the third feedback resource range to the second terminal so that the second terminal generates a control signaling according to the third feedback resource range,

the third feedback resource range includes at least one of a coverage of a cell where the first terminal is located and a coverage of an area where the first terminal is located, and the control signaling includes at least one of a first feedback resource range where the second terminal is located and a designated feedback resource.

According to another aspect of the present disclosure, there is provided an apparatus for determining data feedback resources, the apparatus being applied to a first terminal, the apparatus including:

the data receiving module is used for receiving first data sent by the second terminal;

the first range determining module is used for determining the range of the feedback resources where the second terminal is located;

the resource determining module is used for determining target feedback resources required for information feedback of the first data according to the feedback resource range and the position of the first terminal;

and the information feedback module is used for sending feedback information to the second terminal based on the target feedback resource, wherein the feedback information is used for indicating the receiving state of the first data by the first terminal.

For the apparatus, in a possible implementation manner, the first range determining module includes:

the first signaling receiving submodule is used for receiving a first control signaling which is sent by a second terminal and corresponds to the first data, and the first control signaling comprises a first feedback resource range where the second terminal is located and an appointed feedback resource;

a first range determination sub-module that determines a first feedback resource range indicated in the first control signaling as the feedback resource range,

wherein the resource determination module comprises:

a first resource determining submodule, configured to determine, when it is determined that the first terminal is within the feedback resource range according to the position of the first terminal, a specified feedback resource indicated in the first control signaling as the target feedback resource,

For the above apparatus, in a possible implementation manner, the first range determining module includes:

a second range determining submodule, configured to determine a second feedback resource range in which the second terminal is located according to at least one of a cell and a region in which the second terminal is located, and determine the second feedback resource range as the feedback resource range;

wherein the resource determination module comprises:

the second signaling receiving submodule is used for receiving a second control signaling which is sent by a second terminal and corresponds to the first data, and the second control signaling comprises a designated feedback resource;

a second resource determining submodule, configured to determine, when it is determined that the first terminal is within the feedback resource range according to the position of the first terminal, a specified feedback resource indicated in the second control signaling as the target feedback resource,

For the apparatus, in a possible implementation manner, the resource determining module further includes:

the position judgment submodule judges whether the first terminal is in a residual coverage range according to the position of the first terminal when the first terminal is determined to be out of the feedback resource range according to the position of the first terminal;

a third resource determining submodule for determining a target feedback resource from a feedback resource pool corresponding to the remaining coverage range when the first terminal is determined to be within the remaining coverage range,

wherein the remaining coverage includes at least one of a coverage in a cell coverage excluding the feedback resource range and a coverage in an area coverage excluding the feedback resource range, the cell coverage includes a coverage of a plurality of cells, and the area coverage includes a coverage of a plurality of areas.

and the fourth resource determining submodule determines a target feedback resource from a preset feedback resource pool when the first terminal is determined to be out of the feedback resource range and out of the residual coverage range according to the position of the first terminal.

and the fifth resource determining submodule determines a target feedback resource from the feedback resource pool corresponding to the feedback resource range when the first terminal is determined to be in the feedback resource range according to the position of the first terminal.

For the above apparatus, in one possible implementation manner, the apparatus further includes:

the second range determining module is used for determining a third feedback resource range in which the first terminal is located according to the position of the first terminal;

a range sending module, configured to send the third feedback resource range to the second terminal, so that the second terminal generates a control signaling according to the third feedback resource range,

According to another aspect of the present disclosure, there is provided an apparatus for determining data feedback resources, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the above method for determining data feedback resources.

According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon computer program instructions, wherein the computer program instructions, when executed by a processor, implement the above-described method of determining data feedback resources.

The method and the device for determining the data feedback resources provided by the embodiment of the disclosure are applied to a first terminal, and comprise the following steps: receiving first data sent by a second terminal; determining a feedback resource range of a second terminal; determining target feedback resources required for information feedback of the first data according to the feedback resource range and the position of the first terminal; and sending feedback information to the second terminal based on the target feedback resource, wherein the feedback information is used for indicating the receiving state of the first data by the first terminal. The method and the device for determining the data feedback resources provided by the embodiment of the disclosure have the advantages of wide application range and low requirement on the equipment of the first terminal, so that the first terminal can accurately determine the target feedback resources according to the position of the first terminal under various scenes of V2X, the sent feedback information can be received by the second terminal, the adverse effect of the use of the feedback resources on Uu interface transmission is reduced, the speed and the efficiency for determining the target feedback resources are high, and the data transmission speed and the efficiency between the terminals can be further improved.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

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

Fig. 1 shows a flowchart of a method for determining data feedback resources according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram illustrating an application scenario of a method for determining data feedback resources according to an embodiment of the present disclosure.

Fig. 3 shows a block diagram of a determination apparatus of data feedback resources according to an embodiment of the present disclosure.

Fig. 4 shows a block diagram of a determination apparatus of data feedback resources according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

Fig. 1 shows a flowchart of a method for determining data feedback resources according to an embodiment of the present disclosure. As shown in fig. 1, the method may be applied to a first terminal. The method includes steps S11 through S14.

In step S11, the first data transmitted by the second terminal is received.

In step S12, the feedback resource range where the second terminal is located is determined.

In step S13, a target feedback resource required for information feedback with respect to the first data is determined according to the feedback resource range and the position of the first terminal.

In step S14, feedback information is sent to the second terminal based on the target feedback resource, the feedback information being used to indicate a receiving status of the first data by the first terminal.

In this embodiment, the first terminal and the second terminal may be a vehicle, a handheld terminal, a mobile phone, a tablet computer, a personal computer, and other terminal devices in V2X, which can be applied in V2X, and both of them may be referred to as a User Equipment (UE), for short. The first terminal and the second terminal can perform direct communication, such as direct communication by using a PC5 interface, and perform data transmission.

In this embodiment, the feedback resource may be a physical resource block on the frequency domain. The first data may refer to various types of data that require the first terminal to send feedback information after receiving, which is not limited by the present disclosure. The feedback information may be ack (acknowledgement) or nack (negative acknowledgement). The ACK is used to indicate that the first terminal successfully receives the first data sent by the second terminal. NACK is used to indicate that the first terminal did not successfully receive or successfully parse the first data sent by the second terminal.

In this embodiment, the feedback resource range where the second terminal is located is a feedback resource range where the second terminal can receive feedback information theoretically and/or a feedback resource range where the second terminal preferentially receives feedback information, and in fact, after the first terminal sends feedback information based on a target feedback resource (belonging to the feedback resource range), whether the second terminal can successfully receive the feedback information is also related to factors such as the state of the second terminal itself and interference of the outside on the feedback information. The first terminal sends out feedback information based on the target feedback resource, which is one of the guarantees that the second terminal receives the feedback information.

In one possible implementation, step S12 may include:

receiving a first control signaling which is sent by a second terminal and corresponds to first data, wherein the first control signaling comprises a first feedback resource range where the second terminal is located and an appointed feedback resource;

and determining a first feedback resource range indicated in the first control signaling as a feedback resource range.

Wherein, the step S13 may include: and when the first terminal is determined to be in the feedback resource range according to the position of the first terminal, determining the specified feedback resource indicated in the first control signaling as the target feedback resource.

The first feedback resource range may include at least one of a coverage of a cell where the second terminal is located, a coverage of at least one cell that establishes a feedback resource configuration protocol with the cell, a coverage of an area where the second terminal is located, and a coverage of at least one area that establishes a feedback resource configuration protocol with the area.

The control signaling (including the first control signaling, the second control signaling, and the control signaling described herein) may be signaling corresponding to the first data sent by the second terminal in the same timeslot, and may be sent simultaneously with the first data or before the first data, which is not limited by the present disclosure. That is, the receiving of the first control signaling in step S12 may be performed in synchronization with the receiving of the first data in step S11, or before the receiving of the first data in step S11. A Slot (Slot) is a time unit for information transmission, and generally one Slot includes a length of 14 symbols. The Control signaling may be a Sidelink Control Information, SCI for short, a direct link Control signaling, which may further include Information related to transmission of the first data, such as whether to retransmit the first data, a modulation and coding strategy of the first data and/or feedback Information, and Information of a physical resource block occupied by the first data. The Control signaling may also be PC5 RRC (Radio Resource Control) signaling. The first control signaling may indicate the first feedback resource range where the second terminal is located and specify the feedback resource through one signaling at the same time, or may be divided into two signaling to indicate the first feedback resource range where the second terminal is located and specify the feedback resource respectively. When the first control signaling is indicated by two signaling, the first feedback resource range where the second terminal is located can be indicated by PC5 RRC signaling, and the feedback resource is specified by SCI signaling indication. Alternatively, the first feedback resource range may be indicated by RRC signaling at the PC5, a part of the parameters of the feedback resources may be specified, and the first feedback resource range may be indicated by SCI signaling, another part of the parameters of the feedback resources may be specified. Thus, the bit number of SCI signaling can be effectively reduced by specifying the feedback resources through the two instruction instructions.

For example, taking the specification of the feedback resource as an example, the parameter indicating the specification of the feedback resource may include a frequency domain position, a time domain position, a number of occupied symbols of the specified feedback resource, and other parameters related to the specified feedback resource. When the first control signaling is indicated by two signaling, a part of parameters of the specified feedback resource can be indicated by the PC5 RRC signaling, and another part of parameters of the specified feedback resource can be indicated by the SCI signaling, and the first terminal can determine the specified feedback resource based on all the parameters of the PC5 RRC signaling and the SCI signaling. Alternatively, multiple alternative specified feedback resources may be indicated by the PC5 RRC signaling, where the SCI signaling indicates a specified feedback resource selected by the second terminal for the first terminal. Thus, the number of bits of SCI signaling can be further reduced by indicating the first control signaling through two signaling, PC5 RRC signaling and SCI signaling.

In one possible implementation, step S12 may include: before receiving the first data of S11, a PC5 RRC (Radio Resource Control) signaling (i.e., a first Control signaling) is received from the second terminal, and a first feedback Resource range where the second terminal is located is known from the PC5 RRC signaling. After receiving the first data, the first feedback resource range determined in step S12 is taken as the feedback resource range. Before the first terminal and the second terminal perform data transmission, an RRC connection based on the PC5 interface may be established, and the first terminal may receive, from the second terminal during the connection establishment, a first feedback resource range in which the second terminal is located. When the second terminal transmits the first data to the first terminal later, the second terminal may designate the feedback resource through a direct link control signaling indication.

In mobile communication, a region covered by a wireless signal is referred to as a cell, a coverage area of the cell may refer to a coverage area or a partial coverage area covered by a signal of a base station, one base station may govern one or more cells, and each cell may have an independent coverage area. The Zone (Zone) is a range divided according to geographical location, for example, a city and a province can be divided into different zones according to a reference point and a size, such as length, width, and the like, each Zone has an independent Zone identifier, and the reference point and the size of the length and the width can be set by a network through system messages or preset in user equipment. The terminals in a region or a cell can directly utilize the feedback resources in the feedback resource pool of the region or the cell to perform information feedback. One or more cells may be included in one area, or one cell may include one or more areas, and those skilled in the art may set the correspondence between the cells and the areas according to actual needs, which is not limited by the present disclosure.

Here, the coverage of the cell (or area) may be represented by an identifier of the cell (or area), such as a number and a name of the cell (or area), and a location and a service area of the cell (or area). The coverage of a cell (or area) may also be represented by the identity of the base station, such as the name or number of the base station in the cell or area, and the location, service area, etc. of the base station. For example, the coverage area is represented by a cell identifier or an area identifier. The coverage of a cell and an area can be set by those skilled in the art according to actual needs, and the present disclosure does not limit this.

The feedback resource configuration protocol may refer to a configuration protocol of feedback resources that is pre-established between cells, between cells and areas, or between areas, and the configuration protocol of feedback resources between cells and cells, between cells and areas, or between areas and areas informs other cells or areas with which the feedback resource configuration protocol is established of the configuration situation of feedback resources when the feedback resources in the corresponding feedback resource pool are configured to the terminal served by the cell, the area, or the area. Assuming that a feedback resource configuration protocol is pre-established between the cell1 and the cell2, and the cell1 configures the feedback resource 1 for the terminal 1, the cell1 sends similar information, such as "the feedback resource 1 has been configured" or "the feedback resource 1 has been configured for the terminal 1" to the cell 2. When configuring feedback resources for terminal 2 served by cell2, for example, terminal 2 may be configured with other feedback resources except feedback resource 1, so as to avoid configuring already configured feedback resource 1 to terminal 2. Usually, a feedback resource configuration protocol is constructed between cells of different base stations through an interface between the base stations, such as an X2 interface, that is, the configuration of a feedback resource is negotiated, and the base station informs a feedback resource pool expected to be configured by a managed serving cell to a base station to which an adjacent cell belongs through an X2 interface, so that an opponent can avoid using the feedback resource pool expected to be configured for other purposes. The X2 interface is an interconnection interface between base stations, and supports transmission of data and signaling.

The second terminal may determine the cell or the area where the second terminal is located according to the position of the second terminal, and then determine the first feedback resource range of the second terminal according to the cell or the area where the second terminal is located and the coverage area of the cell or the area where the feedback resource configuration protocol is established between the second terminal and the cell or the area where the second terminal is located. The second terminal may obtain, from the system message of the cell in which the second terminal is located, a cell or an area in which the feedback resource configuration protocol is established with the cell or the area in which the second terminal is located. Or the second terminal may determine, according to a preset default setting of a protocol, an adjacent cell having the same frequency (same frequency) as the cell or area where the second terminal is located, as the cell or area where the feedback resource configuration protocol is established with the cell or area where the second terminal is located.

Through the above manner, when the first terminal receives the first control signaling corresponding to the first data, the first feedback resource range in the first control signaling can be directly determined as the feedback resource range where the second terminal is located, and when the first terminal is located in the feedback resource range (i.e., the first feedback resource range), the specified feedback resource indicated by the first control signaling is directly determined as the target feedback resource, so that the time for information feedback is saved, the working efficiency is improved, and the second terminal can be ensured to quickly receive the feedback information.

In one possible implementation, step S12 may include:

and determining a second feedback resource range in which the second terminal is located according to at least one of the cell or the area in which the second terminal is located, and determining the second feedback resource range as the feedback resource range. The second feedback resource range may include at least one of a coverage of a cell in which the second terminal is located and a coverage of an area in which the second terminal is located.

Wherein, the step S13 may include:

receiving a second control signaling which is sent by a second terminal and corresponds to the first data, wherein the second control signaling comprises an appointed feedback resource;

and when the first terminal is determined to be in the feedback resource range according to the position of the first terminal, determining the specified feedback resource indicated in the second control signaling as the target feedback resource.

Here, the second control signaling may be transmitted by the second terminal in the same time slot as the first data in step S11, may be transmitted simultaneously with the first data, or may be transmitted before the first data.

In this implementation, the first terminal and the second terminal may establish a PC5 RRC connection prior to data transmission. The first terminal may know the cell and/or area where the second terminal is located according to the procedure of establishing the PC5 RRC connection with the second terminal. And then the first terminal can determine a second feedback resource range used by the second terminal for receiving the feedback information according to the coverage range of the cell and/or the area where the second terminal is located. The skilled person can set the manner of determining the cell and/or the area where the second terminal is located according to actual needs, which is not limited by the present disclosure.

In this implementation manner, when the first terminal receives the second control signaling including the specified feedback resource, a second feedback resource range, used by the second terminal to receive the feedback information, may be determined according to a cell and/or an area where the second terminal is located. And when the first terminal is determined to be within the feedback resource range (i.e. the second feedback resource range), determining the specified feedback resource indicated by the second control signaling as the target feedback resource.

In one possible implementation, step S13 may further include:

when the first terminal is determined to be out of the range of the feedback resources according to the position of the first terminal, judging whether the first terminal is in the residual coverage range according to the position of the first terminal;

and when the first terminal is determined to be in the residual coverage range, determining a target feedback resource from a feedback resource pool corresponding to the residual coverage range.

The remaining coverage may include at least one of a coverage in a cell coverage except the feedback resource range and a coverage in an area coverage except the feedback resource range, the cell coverage may include a coverage of a plurality of cells, and the area coverage may include a coverage of a plurality of areas.

In this implementation, it may be that it is determined that the first terminal is outside the feedback resource range, or the signal strength of the cell or the region corresponding to the feedback resource range is smaller than the signal threshold capable of performing data transmission.

In this implementation, when the first terminal determines that the first terminal is outside the feedback resource range and within the remaining coverage range, the target feedback resource is directly determined from the feedback resource pool corresponding to the remaining coverage range. At this time, even if the first terminal receives the first control signaling or the second control signaling sent by the second terminal, the first terminal determines the target feedback resource from the feedback resource pool corresponding to the remaining coverage range without taking the specified feedback resource indicated in the first control signaling or the second control signaling as the target feedback resource. The second terminal can be ensured to receive the feedback information sent by the first terminal.

In this implementation, no feedback resource configuration protocol is established between the cell or the region corresponding to the remaining coverage and the cell or the region in the feedback resource range. The cell or the area corresponding to the remaining coverage area may use the feedback resource indicated by the second terminal for uplink transmission of other UEs. Therefore, when the first terminal determines that the first terminal is out of the range of the feedback resources and in the remaining coverage range, if the first terminal adopts the feedback resources indicated by the second terminal, resource conflict is easily caused, so that the second terminal cannot smoothly receive the feedback information sent by the first terminal.

In one possible implementation, step S13 may further include: and when the first terminal is determined to be out of the range of the feedback resources and out of the residual coverage range according to the position of the first terminal, determining the target feedback resources from a preset feedback resource pool.

In this implementation, determining that the first terminal is outside the remaining coverage area may be that no signal of any cell is detected, or that the signal strength of the detected cell is less than a signal threshold for enabling data transmission.

In this implementation manner, the first terminal may randomly select any one of the preset feedback resources in the feedback resource pool as the target feedback resource. Or, according to a preset selection rule, selecting a feedback resource from a preset feedback resource pool as a target feedback resource. The skilled person in the art may set the manner of determining the target feedback resource from the preset feedback resource pool according to actual needs, which is not limited in this disclosure.

In this implementation manner, a feedback resource pool that can be utilized by the first terminal when the first terminal is "out of the cell coverage" may be set in advance for the first terminal, so that when it is determined that the first terminal is out of the feedback resource range and out of the remaining coverage according to the position of the first terminal, the target feedback resource may be determined from the preset feedback resource pool. In this way, it can be ensured that the second terminal can receive the feedback information.

In one possible implementation, step S13 may further include: and when the first terminal is determined to be in the feedback resource range according to the position of the first terminal, determining a target feedback resource from a feedback resource pool corresponding to the feedback resource range.

In this implementation, the first terminal may determine the first feedback resource range according to the control signaling corresponding to the first data, or determine the second feedback resource range according to the cell and/or the area where the second terminal is located, and determine the first feedback resource range or the second feedback resource range as the feedback resource range. And when the first terminal is determined to be in the feedback resource range, determining the target feedback resource from the feedback resource pool corresponding to the feedback resource range. In this way, when the second terminal does not indicate the designated feedback resource configured for the first terminal through the control signaling, the first terminal may determine the target feedback resource from the feedback resource pool corresponding to the feedback resource range, and ensure that the second terminal can receive the feedback information.

In one possible implementation, the method may further include:

and sending the third feedback resource range to the second terminal so that the second terminal generates a control signaling according to the third feedback resource range.

The third feedback resource range may include at least one of a coverage of a cell in which the first terminal is located and a coverage of an area in which the first terminal is located, and the control signaling may include at least one of a first feedback resource range in which the second terminal is located and a designated feedback resource.

In this implementation manner, the third feedback resource range may be represented by a cell identifier and an area identifier, such as a name and a number of a cell and/or an area where the first terminal is located. The first terminal may send the third feedback resource range where the first terminal is located to the second terminal in advance, so that the second terminal determines whether to configure the specified feedback resource for the first terminal according to the third feedback resource range. The first terminal may send the third feedback resource range to the second terminal by means of PC5 RRC signaling, control signaling, or the like. The third feedback resource range is sent to the second terminal by the first terminal through RRC signaling, for example, when the PC5 RRC connection is initially established, and then if the third feedback resource range changes due to the movement of the first terminal, the first terminal sends a new third feedback resource range to the second terminal through RRC signaling.

In this implementation, when the second terminal receives the third feedback resource range, the first feedback resource range of the second terminal itself may be compared with the third feedback resource range. When it is determined that the first feedback resource range includes the third feedback resource range, the first terminal may be directly configured with the specified feedback resource, and generate the first control signaling or the second control signaling. When it is determined that the first feedback resource range does not include the third feedback resource range, the first terminal may not be configured with the specified feedback resource and generate the control signaling including the first feedback resource range.

It should be noted that, although the determination method of the data feedback resource is described above by taking the above-mentioned embodiment as an example, a person skilled in the art can understand that the disclosure should not be limited thereto. In fact, the user can flexibly set each step according to personal preference and/or actual application scene, as long as the technical scheme of the disclosure is met.

The method for determining the data feedback resources provided by the embodiment of the disclosure has a wide application range and low requirements on the device of the first terminal, so that the first terminal can accurately determine the target feedback resources according to the position of the first terminal under various scenes of V2X, the sent feedback information can be received by the second terminal, the adverse effect of the use of the feedback resources on Uu interface transmission is reduced, the speed and the efficiency for determining the target feedback resources are high, and the data transmission speed and the efficiency between the terminals can be further improved.

Application examples

An application example according to the embodiment of the present disclosure is given below in connection with "UE 2 transmits first data through UE 1" as an exemplary application scenario to facilitate understanding of a flow of a determination method of data feedback resources. It is to be understood by those skilled in the art that the following application examples are for the purpose of facilitating understanding of the embodiments of the present disclosure only and are not to be construed as limiting the embodiments of the present disclosure.

Fig. 2 is a schematic diagram illustrating an application scenario of a method for determining data feedback resources according to an embodiment of the present disclosure. As shown in fig. 2, it is assumed that a UE1 (i.e., a second terminal) sends first data and a first control signaling corresponding to the first data to a UE2 (i.e., a first terminal), where the first control signaling includes a cell1 in which the UE1 is located, a cell2 (i.e., a first feedback resource range, where the first feedback resource range includes the cell1 and the cell2) that establishes a feedback resource configuration protocol with a cell1 in advance, and a designated feedback resource a preconfigured for the UE2 by the UE 1. The cell coverage includes coverage of cell1, cell2, and cell 3. The UE2 is in a continuous motion state, and its motion trajectory is cell1 → cell2 → cell3 → out of the cell coverage.

Scenario 1

If the UE2 moves into the cell1 or the cell2, since the UE2 can determine that it is within the first feedback resource range of the UE1 indicated in the first control signaling according to its own position, the specified feedback resource a indicated in the first control signaling is determined as the target feedback resource. And sends feedback information (i.e., ACK or NACK) to the UE1 based on the target feedback resource (i.e., the designated feedback resource a).

Scenario 2

If the UE2 moves into the cell3, since the UE2 can determine that it is out of the first feedback resource range of the UE1 indicated in the first control signaling and in the remaining coverage range (i.e., the coverage range in the cell coverage range except the first feedback resource range) according to its own position, the specified feedback resource indicated in the first control signaling can be ignored, and a target feedback resource, such as feedback resource b, is determined from the feedback resource pool corresponding to the coverage range of the cell 3. And sends feedback information to the UE1 based on the target feedback resource, i.e., feedback resource b.

Scene 3

If the UE2 moves out of the cell coverage, since the UE2 can determine that it is out of the first feedback resource range of the UE1 indicated in the first control signaling and is out of the remaining coverage, that is, out of the cell coverage, according to its own position, the UE2 may ignore the specified feedback resource indicated in the first control signaling, and determine a target feedback resource, such as the feedback resource c, from a preset feedback resource pool. And sends feedback information to the UE1 based on the target feedback resource (i.e., feedback resource c).

Thus, since the target feedback resources of the UE2 are determined based on the location of the UE2 itself, it is guaranteed that the issued feedback information can be received by the UE1 regardless of the motion of the UE 2. The adverse effect of the use of the feedback resources on the Uu interface transmission is reduced, the target feedback resources are determined quickly and efficiently, and the data transmission speed and efficiency between the UE1 and the UE2 can be further improved.

Fig. 3 shows a block diagram of a determination apparatus of data feedback resources according to an embodiment of the present disclosure. As shown in fig. 3, the apparatus may be applied to a first terminal, and includes a data receiving module 51, a first range determining module 52, a resource determining module 53, and an information feedback module 54. The data receiving module 51 is configured to receive the first data transmitted by the second terminal. The first range determination module 52 is configured to determine a range of feedback resources in which the second terminal is located. The resource determining module 53 is configured to determine a target feedback resource required for information feedback with respect to the first data according to the feedback resource range and the position of the first terminal. The information feedback module 54 is configured to send feedback information to the second terminal based on the target feedback resource, where the feedback information is used to indicate a receiving status of the first data by the first terminal.

In one possible implementation, the first range determination module 52 may include:

the first signaling receiving submodule receives a first control signaling which is sent by the second terminal and corresponds to the first data, and the first control signaling comprises a first feedback resource range where the second terminal is located and an appointed feedback resource;

and the first range determining submodule determines the first feedback resource range indicated in the first control signaling as the feedback resource range.

The resource determining module 53 may include:

a first resource determining submodule for determining a specified feedback resource indicated in the first control signaling as a target feedback resource when the first terminal is determined to be within the feedback resource range according to the position of the first terminal,

In one possible implementation, the first range determining module 52 may include:

the second range determining submodule determines a second feedback resource range in which the second terminal is located according to at least one of the cell or the area in which the second terminal is located, and determines the second feedback resource range as the feedback resource range;

the resource determining module 53 may include:

the second signaling receiving submodule receives second control signaling which is sent by a second terminal and corresponds to the first data, and the second control signaling comprises designated feedback resources;

a second resource determining submodule for determining the specified feedback resource indicated in the second control signaling as the target feedback resource when the first terminal is determined to be within the feedback resource range according to the position of the first terminal,

the second feedback resource range may include at least one of a coverage of a cell in which the second terminal is located and a coverage of an area in which the second terminal is located.

In a possible implementation manner, the resource determining module 53 may further include:

the position judgment submodule judges whether the first terminal is in the residual coverage range according to the position of the first terminal when the first terminal is determined to be out of the feedback resource range according to the position of the first terminal;

a third resource determining submodule for determining a target feedback resource from the feedback resource pool corresponding to the remaining coverage range when the first terminal is determined to be within the remaining coverage range,

and the fourth resource determining submodule determines the target feedback resource from a preset feedback resource pool when the first terminal is determined to be out of the range of the feedback resource and out of the residual coverage range according to the position of the first terminal.

and the fifth resource determining submodule determines the target feedback resource from the feedback resource pool corresponding to the feedback resource range when the first terminal is determined to be in the feedback resource range according to the position of the first terminal.

In one possible implementation, the apparatus may further include:

the second range determining module is used for determining a third feedback resource range in which the first terminal is positioned according to the position of the first terminal;

a range sending module for sending the third feedback resource range to the second terminal so that the second terminal generates a control signaling according to the third feedback resource range,

the third feedback resource range may include at least one of a coverage of a cell in which the first terminal is located and a coverage of an area in which the first terminal is located, and the control signaling includes at least one of a first feedback resource range in which the second terminal is located and a designated feedback resource.

It should be noted that, although the determination device of the data feedback resource is described above by taking the above-mentioned embodiment as an example, those skilled in the art can understand that the disclosure should not be limited thereto. In fact, the user can flexibly set each module according to personal preference and/or actual application scene, as long as the technical scheme of the disclosure is met.

The device for determining the data feedback resources provided by the embodiment of the disclosure has a wide application range and low requirements on the equipment of the first terminal, so that the first terminal can accurately determine the target feedback resources according to the position of the first terminal under various scenes of V2X, the sent feedback information can be received by the second terminal, the adverse effect of the use of the feedback resources on Uu interface transmission is reduced, the speed for determining the target feedback resources is high, the efficiency is high, and the data transmission speed and efficiency between terminals can be further improved.

Fig. 4 shows a block diagram of a determination apparatus of data feedback resources according to an embodiment of the present disclosure. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 4, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile and non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed state of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804, is also provided that includes computer program instructions executable by the processor 820 of the device 800 to perform the above-described methods.

The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as punch cards or in-groove raised structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for determining data feedback resources is applied to a first terminal, and the method comprises the following steps:

receiving first data sent by a second terminal;

determining a feedback resource range where the second terminal is located;

2. The method of claim 1, wherein determining the feedback resource range in which the second terminal is located comprises:

3. The method of claim 1, wherein determining the feedback resource range in which the second terminal is located comprises:

4. The method according to any one of claims 1 to 3, wherein a target feedback resource required for information feedback for the first data is determined according to the feedback resource range and the position of the first terminal, and further comprising:

5. The method of claim 4, wherein determining a target feedback resource required for information feedback on the first data according to the feedback resource range and the position of the first terminal further comprises:

6. The method according to any one of claims 1 to 3, wherein a target feedback resource required for information feedback for the first data is determined according to the feedback resource range and the position of the first terminal, and further comprising:

and when the first terminal is determined to be in the feedback resource range according to the position of the first terminal and the first control signaling and the second control signaling from the second terminal are not received, determining a target feedback resource from a feedback resource pool corresponding to the feedback resource range.

7. The method according to any one of claims 1-3, further comprising:

the third feedback resource range includes at least one of a coverage of a cell where the first terminal is located and a coverage of an area where the first terminal is located, and the control signaling includes at least one of a first feedback resource range and a designated feedback resource, which enable the second terminal to receive feedback information.

8. An apparatus for determining data feedback resources, the apparatus being applied to a first terminal, the apparatus comprising:

9. The apparatus of claim 8, wherein the first range determination module comprises:

wherein the resource determination module comprises:

10. The apparatus of claim 8, wherein the first range determination module comprises:

wherein the resource determination module comprises:

11. The apparatus of any of claims 8-10, wherein the resource determination module further comprises:

a third resource determining submodule for determining a target feedback resource from the feedback resource pool corresponding to the residual coverage range when the first terminal is determined to be in the residual coverage range,

12. The apparatus of claim 11, wherein the resource determining module further comprises:

13. The apparatus of any of claims 8-10, wherein the resource determination module further comprises:

and a fifth resource determining submodule, configured to determine a target feedback resource from a feedback resource pool corresponding to the feedback resource range when it is determined that the first terminal is within the feedback resource range according to the position of the first terminal and the first control signaling and the second control signaling from the second terminal are not received.

14. The apparatus according to any one of claims 8-10, further comprising:

the second range determining module is used for determining a third feedback resource range where the first terminal is located according to the position of the first terminal;

15. An apparatus for determining data feedback resources, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the method of any one of claims 1 to 7.

16. A non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of any of claims 1 to 7.