CN114342431A

CN114342431A - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN114342431A
Application number: CN201980099737.4A
Authority: CN
Inventors: 赵振山; 卢前溪; 林晖闵
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2022-04-12
Also published as: WO2021092923A1

Abstract

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, wherein the terminal equipment can autonomously decide to retransmit before receiving side-line feedback, so that the time delay requirement, the reliability requirement and the like of side-line data can be ensured. The wireless communication method includes: the terminal device determines whether to retransmit the first sidestream data prior to receiving sidestream feedback for the first sidestream data.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The embodiments of the present application relate to the field of communications, and in particular, to a wireless communication method, a terminal device, and a network device.

Background

In New Radio (NR) vehicles to other devices (V2X), sidestream data may be transmitted in a blind retransmission manner, that is, a transmitting device autonomously determines to perform retransmission without feedback from a receiving device. In NR V2X, in order to improve reliability of sidestream data transmission, sidestream feedback is introduced, and a sending end device may determine whether retransmission is needed according to feedback of a receiving end device. However, how to combine the two transmission methods to improve the performance of the system is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, wherein the terminal equipment can autonomously decide to retransmit before receiving side-line feedback, so that the time delay requirement, the reliability requirement and the like of side-line data can be ensured.

In a first aspect, a wireless communication method is provided, and the method includes:

the terminal device determines whether to retransmit the first sidestream data prior to receiving sidestream feedback for the first sidestream data.

In a second aspect, a wireless communication method is provided, the method comprising:

the network device sends configuration information to the terminal device, wherein the configuration information is used for the terminal device to determine whether to retransmit the first side row data before receiving the side row feedback of the first side row data.

In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or each implementation manner thereof.

Specifically, the terminal device includes a functional module for executing the method in the first aspect or each implementation manner thereof.

In a fourth aspect, a network device is provided for performing the method of the second aspect or its implementation manners.

In particular, the network device comprises functional modules for performing the methods of the second aspect or its implementations described above.

In a fifth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method of the second aspect or each implementation mode thereof.

In a seventh aspect, an apparatus is provided for implementing the method in any one of the first to second aspects or implementations thereof.

Specifically, the apparatus includes: a processor configured to call and run the computer program from the memory, so that the device on which the apparatus is installed performs the method according to any one of the first aspect to the second aspect or the implementation manner thereof.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.

A tenth aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

By the technical scheme, the terminal equipment can determine whether to retransmit the first side-line data before side-line feedback for the first side-line data is received, so that the time delay requirement, the reliability requirement and the like of the side-line data can be ensured.

Drawings

Fig. 1 is a schematic block diagram of a transmission mode according to an embodiment of the present application.

Fig. 2 is a schematic block diagram of another transmission mode of the embodiment of the present application.

Fig. 3 is a schematic block diagram of a unicast transmission mode according to an embodiment of the present application.

Fig. 4 is a schematic block diagram of a multicast transmission mode according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a broadcast transmission mode according to an embodiment of the present application.

Fig. 6 is a schematic block diagram of a unicast feedback transmission mode according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a retransmission based on sidestream feedback according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a blind retransmission according to an embodiment of the present application.

Fig. 9 is a schematic flow chart of a wireless communication method provided according to an embodiment of the present application.

Fig. 10 is a schematic flow chart of indicating retransmission by a network device according to an embodiment of the present application.

Fig. 11 is a schematic flow chart of another wireless communication method provided according to an embodiment of the application.

Fig. 12 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of a network device provided according to an embodiment of the present application.

Fig. 14 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 15 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

Fig. 16 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without making any creative effort with respect to the embodiments in the present application belong to the protection scope of the present application.

The embodiment of the application can be applied to any terminal equipment-to-terminal equipment communication framework.

For example, Vehicle to Vehicle (V2V), Vehicle to other devices (V2X), terminal to terminal (Device to Device, D2D), etc.

The terminal in this embodiment may be any device or apparatus configured with a physical layer and a media access control layer, and the terminal device may also be referred to as an access terminal. Such as a User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other linear processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, or the like. The embodiment of the present application takes the in-vehicle terminal as an example for explanation, but is not limited to this.

The third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) defines two transmission modes, which are respectively denoted as: mode a and mode B.

Fig. 1 is a schematic diagram of mode a of an embodiment of the present application. Fig. 2 is a schematic diagram of mode B of the embodiment of the present application.

In the mode a shown in fig. 1, the transmission resources of the in-vehicle terminals (the in-vehicle terminal 121 and the in-vehicle terminal 122) are allocated by the base station 110, and the in-vehicle terminals perform data transmission on the sidelink according to the resources allocated by the base station 110. Specifically, the base station 110 may allocate resources for single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.

In the mode B shown in fig. 2, the in-vehicle terminals (the in-vehicle terminal 131 and the in-vehicle terminal 132) autonomously select a transmission resource on the resource of the sidelink for data transmission. Alternatively, the vehicle-mounted terminal may select the transmission resource randomly or by listening.

The following specifically describes the in-vehicle terminal 131 as an example.

The vehicle-mounted terminal 131 acquires an available transmission resource set in the resource pool in an intercepting manner, and the vehicle-mounted terminal 131 randomly selects one transmission resource from the set to transmit data.

Since the service in the car networking system has a periodic characteristic, in this embodiment of the application, the car terminal 131 may also adopt a semi-static transmission mode. That is, after acquiring one transmission resource, vehicle-mounted terminal 131 continuously uses the transmission resource in a plurality of transmission cycles to reduce the probability of resource reselection and resource collision.

The in-vehicle terminal 131 may carry information of the reserved secondary transmission resource in the control information transmitted this time, so that other terminals (for example, the in-vehicle terminal 132) may determine whether the resource is reserved and used by the user by detecting the control information of the user, thereby achieving the purpose of reducing resource conflict.

It should be noted that, in a New Radio (NR) Vehicle to other devices (V2X), a user may be in a hybrid mode, that is, the user may use mode a to acquire resources and may use mode B to acquire resources at the same time.

In NR-V2X, unicast and multicast transmission schemes are introduced. For unicast transmission, a receiving end terminal of the unicast transmission has only one terminal, and as shown in fig. 3, unicast transmission is performed between UE 1 and UE 2; for multicast transmission, the receiving end is all terminals in a communication group, or all terminals within a certain transmission distance, as shown in fig. 4, UE 1, UE 2, UE 3, and UE 4 form a communication group, where UE 1 sends data, and other terminal devices in the group are all receiving end terminals; for the broadcast transmission scheme, the receiving end is any terminal, as shown in fig. 5, where UE 1 is the sending end terminal, and other terminals around it are all receiving end terminals.

In NR-V2X, a side-row feedback channel is introduced for improved reliability. For example, as shown in fig. 6, for unicast transmission, a transmitting terminal transmits sideline data (including a Physical Sideline Control Channel (PSCCH) and a Physical sideline Shared Channel (PSCCH)) to a receiving terminal, the receiving terminal transmits Hybrid Automatic Repeat reQuest (HARQ) feedback information to the transmitting terminal, and the transmitting terminal determines whether retransmission is required according to the feedback information of the receiving terminal. The HARQ Feedback information is carried in a Sidelink Feedback Channel, such as a Physical Sidelink Feedback Channel (PSFCH).

Side-line feedback can be activated or deactivated through preconfigured information or network configured information, if side-line (SL) feedback is activated, the receiving terminal receives side-line data sent by the sending terminal, and feeds back HARQ Acknowledgement (ACK) or Negative Acknowledgement (NACK) to the sending terminal according to a detection result, and the sending terminal determines to send retransmission data or new data according to the feedback information of the receiving terminal; if the side-line feedback is deactivated, the receiving terminal does not need to send feedback information, and the sending terminal usually sends data in a blind retransmission manner, for example, the sending terminal repeatedly sends each side-line data K times, instead of deciding whether to send retransmission data according to the feedback information of the receiving terminal.

In NR-V2X, the sideline data may be transmitted in a blind retransmission manner, that is, the sending end device autonomously decides to perform retransmission without the feedback of the receiving end device. In addition, in NR-V2X, side-line feedback is introduced, so that the sending-end device can determine whether retransmission is required according to the feedback of the receiving-end device, and if the receiving-end device feeds back ACK, the sending-end device stops retransmission; and if the receiving end equipment feeds back NACK, the sending end equipment retransmits.

In the transmission based on the side-line feedback, the sending end equipment sends the side-line data, the receiving end equipment sends the side-line feedback information to the sending end equipment according to the detection condition of the received data, the sending end equipment determines whether to carry out retransmission according to the feedback information of the receiving end equipment, that is, the transmission of one side row data corresponds to one side row feedback, as shown in fig. 7, the sending end device transmits the side row data on one side row transmission resource (e.g. PSCCH + PSCCH #1 in the figure), the receiving end device transmits the side row feedback on one side row feedback resource (e.g. PSFCH #1 in the figure), if the receiving end feeds back NACK, the transmitting end equipment retransmits the side-line data on another side-line transmission resource (such as PSCCH + PSCCH #2 in the figure), if the receiving end feeds back ACK, the transmitting end device transmits new side-line data on PSCCH + PSCCH #2, and the receiving end device transmits side-line feedback on another side-line feedback resource (such as PSFCH #2 in the figure).

Under certain circumstances, if the delay requirement of the sideline data to be transmitted by the sending end device is high, for example, less than 5ms, the sending end device generally needs to send the sideline data in the shortest possible time, at this time, if the retransmission is determined according to the feedback of the receiving end device, additional delay may be caused, therefore, a mode combining blind retransmission and sideline feedback-based retransmission may be adopted, as shown in fig. 8 below, the sending end device transmits the sideline data on PSCCH + PSCCH #1, transmits the retransmission data of the sideline data on PSCCH + PSCCH #2, and the receiving end device transmits the sideline feedback on PSCCH.

As shown in fig. 8, before receiving the sideline feedback, the sending end device sends the sideline data twice, so that the sideline data can be sent out as fast as possible, and the transmission reliability is improved by two transmissions. However, if all transmissions send sidestream data in this manner, system resources may become congested, increasing the probability of transmission collisions and thus reducing system performance. For example, if the receiving end device has already correctly received data when the terminal device transmits for the first time, the transmitting end device does not need to transmit retransmission, so that the resource utilization rate can be reduced, and the transmission collision between the terminal devices can also be reduced.

Based on the technical problem, the side-line retransmission scheme is designed, and the terminal device can autonomously decide to retransmit before receiving side-line feedback, so that the time delay requirement, the reliability requirement and the like of the side-line data can be ensured.

Fig. 9 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application. The method 200 may be performed by a terminal device. The terminal device shown in fig. 9 may be a vehicle-mounted terminal as shown in any one of fig. 1 to 8.

As shown in fig. 9, the method 200 may include some or all of the following:

s210, the terminal device determines whether to perform retransmission for the first side row data before receiving the side row feedback for the first side row data.

It should be noted that the retransmission before the receipt of the sidelink feedback may be a blind retransmission. And the terminal equipment can autonomously decide whether to retransmit or not before receiving the side feedback.

Optionally, before the step S210, the terminal device transmits the first side row data, specifically, may include initially transmitting or retransmitting the first side row data.

It should be understood that the feedback for the first side row data when the side row feeds back, such as the side row feedback being ACK or NACK, is used to indicate whether the first side row data is correctly received.

Optionally, the terminal device may initially transmit or retransmit the first side-line data in a unicast mode, a multicast mode, a broadcast mode, or the like.

In this embodiment, if the terminal device determines to retransmit the first sidelink data before receiving the sidelink feedback, the terminal device retransmits the first sidelink data before receiving the sidelink feedback.

Optionally, in this embodiment of the present application, the terminal device receives the side feedback; and the terminal equipment determines whether to retransmit the first sidelink data according to the sidelink feedback.

Optionally, as example 1, the step S210 may specifically be:

the terminal device determines whether to retransmit the first sidelink data before receiving the sidelink feedback according to first information, wherein the first information comprises at least one of the following:

priority of the first side row data, delay requirement for transmitting the first side row data, and Channel Busy Ratio (CBR).

It should be noted that the CBR may be a CBR of a system or a CBR of a resource pool in which the first sidelink data is transmitted. That is, if the first information includes CBR, the terminal device needs to measure the CBR of the system or the CBR of the resource pool.

It should be understood that CBR is a measurement quantity used to measure the occupation of system resources, and the higher CBR, the more system resources are occupied, and the higher the probability of collision with the transmission of other users when the terminal device selects transmission resources is; the lower the CBR, the less the system resources are occupied, and the lower the probability of collision with the transmission of other users when the terminal device selects the transmission resources. Therefore, when the CBR is high, the resource utilization rate is reduced as much as possible, so that the CBR of the system is reduced, and the purposes of reducing interference and conflict among users are achieved.

Optionally, in example 1, the priority of the first Sidelink row data is carried in Sidelink Control Information (SCI) for the first Sidelink row data, that is, the SCI is used to indicate transmission resources, transmission parameters, and the like of the first Sidelink row data.

For example, the priority of the first side row data may be a priority level, which corresponds to 0 to 7, and the higher the priority level value is, the lower the corresponding priority level is. Assuming that the priority level of data 1 is 0 and the priority level of data 2 is 1, the priority of data 1 is higher than that of data 2.

Optionally, in example 1, the terminal device may determine whether to perform retransmission for the first sidelink data before receiving the sidelink feedback based on one information included in the first information.

Optionally, assuming that the first information includes the priority of the first side row data, specifically:

if the priority of the first side row data is higher than a first threshold, the terminal device determines to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the priority of the first sidelink data is lower than or equal to a first threshold, the terminal device determines not to retransmit the first sidelink data before receiving the sidelink feedback.

Optionally, assuming that the first information includes a latency requirement for transmitting the first sidelink data, specifically:

if the time delay requirement for transmitting the first side row data is lower than a second threshold value, the terminal device determines to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the delay requirement for transmitting the first sidelink data is higher than or equal to a second threshold, the terminal device determines not to retransmit the first sidelink data before receiving the sidelink feedback.

For example, if the latency requirement of the first sidelink data is 10ms and the second threshold is 20ms, the terminal device may autonomously retransmit the first sidelink data before receiving the sidelink feedback.

For example, if the latency requirement of the first sidelink data is 50ms and the second threshold is 20ms, the terminal device cannot autonomously retransmit the first sidelink data before receiving the sidelink feedback.

Optionally, assuming that the first information includes a CBR, specifically:

if the CBR is lower than the third threshold, the terminal device determines to perform retransmission for the first sidelink data before receiving the sidelink feedback; alternatively, the first and second electrodes may be,

if the CBR is higher than or equal to the third threshold, the terminal device determines not to retransmit the first sidelink data before receiving the sidelink feedback.

It should be noted that, if the CBR of the system is very low, the terminal device may autonomously decide to perform retransmission before receiving the side feedback, and the probability of occurrence of transmission collision is low at this time; however, when the CBR is high, if the terminal device autonomously retransmits before receiving the sidelink feedback, the utilization rate of system resources is increased, and the probability of transmission collision is also increased. Therefore, when the CBR is higher than or equal to the third threshold, autonomous retransmission by the terminal device is not supported.

Optionally, in example 1, the terminal device may determine whether to perform retransmission for the first sidelink data before receiving the sidelink feedback based on at least two information included in the first information. Specifically, the terminal device may perform at least two of the following:

if the priority of the first side row data is higher than a first threshold and the CBR is lower than a third threshold, the terminal device determines to perform retransmission for the first side row data before receiving the side row feedback, otherwise, the terminal device determines not to perform retransmission for the first side row data before receiving the side row feedback;

if the time delay requirement for transmitting the first side row data is lower than a second threshold value and the CBR is lower than a third threshold value, the terminal device determines to perform retransmission for the first side row data before receiving the side row feedback, otherwise, the terminal device determines not to perform retransmission for the first side row data before receiving the side row feedback;

if the priority of the first side row data is higher than a first threshold and the delay requirement for transmitting the first side row data is lower than a second threshold, the terminal device determines to retransmit the first side row data before receiving the side row feedback, otherwise, the terminal device determines not to retransmit the first side row data before receiving the side row feedback.

For example, in a case where the priority of the first sidestream data is higher than the first threshold and the CBR is lower than the third threshold, the terminal device determines to perform retransmission for the first sidestream data before receiving the sidestream feedback.

For another example, in a case that the latency requirement for transmitting the first sidelink data is lower than the second threshold and the CBR is lower than the third threshold, the terminal device determines to perform retransmission for the first sidelink data before receiving the sidelink feedback.

For another example, in a case that the priority of the first sidelink data is higher than a first threshold and the delay requirement for transmitting the first sidelink data is lower than a second threshold, the terminal device determines to perform retransmission for the first sidelink data before receiving the sidelink feedback.

Optionally, in example 1, at least one of the first threshold, the second threshold, and the third threshold is preconfigured or network device configured.

Optionally, in example 1, the terminal device obtains resource pool configuration information, where the resource pool configuration information includes at least one of the first threshold, the second threshold, and the third threshold.

In the embodiment of the present application, the terminal device determines to retransmit the first side row data before receiving the side row feedback for the first side row data, which indicates that the terminal device can retransmit the first side row data, and does not necessarily retransmit the first side row data on behalf of the terminal device. For example, as shown in fig. 10, the time domain period of the side row feedback resource is 4, that is, each 4 slots includes a side row feedback slot, and the side row data of slots 0-3, whose corresponding side row feedback information is transmitted in slot 5. If the priority level of the sideline data to be sent by the terminal device is 3 and 5 is the first threshold, that is, the terminal device can send a retransmission before receiving the sideline feedback, the terminal device can select the transmission resources of the time slot 0 and the time slot 3, send the first transmission of the sideline data in the time slot 0, send the retransmission of the sideline data in the time slot 3, and receive the feedback information of the sideline data in the time slot 5. Optionally, the terminal device may also select only one transmission resource from the timeslot 0 to the timeslot 3, for example, select the transmission resource of the timeslot 0, send the first transmission of the sideline data on the transmission resource, receive the feedback information of the sideline data in the timeslot 5, and determine whether to perform retransmission according to the sideline feedback information.

Optionally, as an example 2, the step S210 may specifically be:

the terminal equipment receives configuration information sent by the network equipment; and the terminal equipment determines whether to retransmit the first sidelink data before receiving the sidelink feedback according to the configuration information.

Optionally, in example 2, the configuration information indicates, by configuring the transmission resource of the first sidelink data, whether the terminal device performs retransmission for the first sidelink data before receiving the sidelink feedback.

Optionally, in example 2, the configuration information is one of:

broadcast Information, Radio Resource Control (RRC) signaling, and Downlink Control Information (DCI) signaling.

Optionally, in example 2, the terminal device sends second information to the network device, where the second information includes at least one of:

the priority of the first side line data, the time delay requirement for transmitting the first side line data and the CBR.

Optionally, the terminal device carries indication information in terminal assistance information (ueassistance information), where the indication information is used to determine the second information.

In particular, the network device may determine the configuration information based on the second information. That is, the terminal device first sends the second information to the network device, and then, the terminal device receives the configuration information sent by the network device.

It should be noted that the sidestream transmission resource may be allocated by the network device, for example, the network device allocates the sidestream transmission resource to the terminal device by means of dynamic authorization or configuration authorization, when the terminal device applies for the transmission resource to the network device, the terminal device may send auxiliary information (second information) to the network device, where the auxiliary information may include, for example, priority information, delay information, and the like of data to be transmitted, and the terminal device may also report the measured CBR to the network device, so that the network device may configure whether the terminal device may retransmit the data before receiving the sidestream feedback information according to the information.

Alternatively, in example 2, for example, if the time domain period of the side row feedback resource is 4, that is, each 4 slots includes a side row feedback slot, as shown in fig. 10, the side row data of slots 0-3 and the corresponding side row feedback information are transmitted in slot 5. If the network device allocates transmission resources for the terminal device in time slot 0 and time slot 2, the terminal device is implicitly instructed to transmit retransmission data before receiving the side feedback. For example, the terminal device sends the side-row data in the time slot 0, and the corresponding side-row feedback is in the time slot 5, and since the network device allocates transmission resources for the terminal device in the time slot 2, the terminal device can send the retransmission data in the time slot 2 without waiting for the feedback information in the time slot 5 to send the retransmission.

Therefore, in the embodiment of the present application, the terminal device may determine whether to retransmit the first sideline data before receiving the sideline feedback for the first sideline data, so as to ensure a delay requirement, a reliability requirement, and the like of the sideline data.

The wireless communication method according to an embodiment of the present application is described in detail from the perspective of a terminal device in conjunction with fig. 9 to 10 above, and the wireless communication method according to another embodiment of the present application is described in detail from the perspective of a network device in conjunction with fig. 11 below. It should be understood that the description of the terminal device side and the description of the network device side correspond to each other, and similar descriptions may be referred to above, and are not repeated herein to avoid repetition.

Fig. 11 is a schematic flow chart diagram of a wireless communication method 300 according to an embodiment of the present application. The method 300 may be performed by a network device. As shown in fig. 11, the method 300 may include some or all of the following:

s310, the network device sends configuration information to the terminal device, where the configuration information is used for the terminal device to determine whether to perform retransmission on the first sidelink data before receiving the sidelink feedback on the first sidelink data.

Optionally, in an implementation of the present application, the configuration information indicates, by configuring transmission resources of the first sidelink data, whether the terminal device performs retransmission on the first sidelink data before receiving the sidelink feedback.

If the configuration information configures at most one transmission resource in one sidestream feedback period, the configuration information indicates that the terminal device does not perform retransmission for the first sidestream data before receiving the sidestream feedback; alternatively, the first and second electrodes may be,

if the configuration information configures at least two transmission resources in one sidelink feedback period, the configuration information indicates that the terminal device retransmits the first sidelink data before receiving the sidelink feedback.

Optionally, the configuration information is one of the following:

broadcast information, RRC signaling, DCI signaling.

Optionally, in an implementation of the present application, the network device receives second information sent by the terminal device, where the second information includes at least one of the following:

Specifically, the network device determines the configuration information according to the second information.

Therefore, in this embodiment of the present application, the network device may configure whether the terminal device performs retransmission on the first sidestream data before receiving sidestream feedback on the first sidestream data, so as to ensure a delay requirement, a reliability requirement, and the like of the sidestream data.

While method embodiments of the present application are described in detail above with reference to fig. 9-11, apparatus embodiments of the present application are described in detail below with reference to fig. 12-16, it being understood that apparatus embodiments correspond to method embodiments and that similar descriptions may be had with reference to method embodiments.

Fig. 12 shows a schematic block diagram of a terminal device 400 according to an embodiment of the application. As shown in fig. 12, the terminal apparatus 400 includes:

a processing unit 410 configured to determine whether to perform retransmission for the first side row data before receiving side row feedback for the first side row data.

Optionally, the processing unit 410 is specifically configured to:

determining whether to retransmit the first sidelink data before receiving the sidelink feedback according to first information, wherein the first information comprises at least one of the following:

Optionally, the processing unit 410 is specifically configured to:

if the priority of the first side row data is higher than a first threshold value, determining to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the priority of the first side row data is lower than or equal to a first threshold, determining that retransmission for the first side row data is not performed before the side row feedback is received; alternatively, the first and second electrodes may be,

if the time delay requirement for transmitting the first side row data is lower than a second threshold value, determining to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the time delay requirement for transmitting the first side row data is higher than or equal to a second threshold value, determining that retransmission for the first side row data is not performed before the side row feedback is received; alternatively, the first and second electrodes may be,

if the CBR is lower than the third threshold, determining to retransmit the first sidelink data before receiving the sidelink feedback; alternatively, the first and second electrodes may be,

if the CBR is greater than or equal to the third threshold, determining that no retransmission is to be performed for the first sidelink data before the sidelink feedback is received.

Optionally, at least one of the first threshold, the second threshold, and the third threshold is preconfigured or configured for a network device.

Optionally, the processing unit 410 is further configured to obtain resource pool configuration information, where the resource pool configuration information includes at least one of the first threshold, the second threshold, and the third threshold.

Optionally, the priority of the first sidelink data is carried in the SCI for the first sidelink data.

Optionally, the terminal device 400 further includes: a communication unit for communicating with the mobile station via the wireless communication unit,

the communication unit is used for receiving configuration information sent by the network equipment;

the processing unit 410 is further configured to determine whether to perform a retransmission for the first sidelink data before receiving the sidelink feedback according to the configuration information.

Optionally, the configuration information indicates, by configuring transmission resources of the first sidelink data, whether the terminal device performs retransmission for the first sidelink data before receiving the sidelink feedback.

Optionally, the configuration information is one of the following:

broadcast information, RRC signaling, DCI signaling.

Optionally, the terminal device further includes: a communication unit for communicating with the mobile station via the wireless communication unit,

the communication unit is configured to send second information to the network device, where the second information includes at least one of:

if it is determined that the retransmission for the first sidelink data is performed before the sidelink feedback is received, the communication unit is configured to perform the retransmission for the first sidelink data before the sidelink feedback is received.

the communication unit is used for receiving the sideline feedback;

the processing unit 410 is further configured to determine whether to perform a retransmission for the first side row data according to the side row feedback.

Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to a terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing a corresponding flow of the terminal device in the method 200 shown in fig. 9, and are not described herein again for brevity.

Fig. 13 shows a schematic block diagram of a network device 500 according to an embodiment of the application. As shown in fig. 13, the terminal device 500 includes:

a communication unit 510, configured to send configuration information to a terminal device, where the configuration information is used for the terminal device to determine whether to perform retransmission for the first side-row data before receiving side-row feedback for the first side-row data.

Optionally, the configuring information indicates, by configuring transmission resources of the first sidelink data, whether the terminal device performs retransmission on the first sidelink data before receiving the sidelink feedback, where the configuring information includes:

Optionally, the configuration information is one of the following:

broadcast information, RRC signaling, DCI signaling.

Optionally, the communication unit 510 is further configured to receive second information sent by the terminal device, where the second information includes at least one of the following:

Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are respectively for implementing the corresponding flow of the network device in the method 300 shown in fig. 11, and are not described herein again for brevity.

Fig. 14 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in fig. 14 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 14, the communication device 600 may further include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.

Optionally, as shown in fig. 14, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 630 may include a transmitter and a receiver, among others. The transceiver 630 may further include one or more antennas.

Optionally, the communication device 600 may specifically be a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 600 may specifically be a terminal device in the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Fig. 15 is a schematic configuration diagram of an apparatus according to an embodiment of the present application. The apparatus 700 shown in fig. 15 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 15, the apparatus 700 may further include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.

Optionally, the apparatus 700 may further comprise an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the apparatus 700 may further comprise an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the apparatus may be applied to the network device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the apparatus may be applied to the terminal device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, it may be a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 16 is a schematic block diagram of a communication system 800 provided in an embodiment of the present application. As shown in fig. 16, the communication system 800 includes a terminal device 810 and a network device 820.

The terminal device 810 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 820 may be configured to implement the corresponding function implemented by the network device or the base station in the foregoing method, which is not described herein again for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device or the base station in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device or the base station in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device or the base station in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device or the base station in the methods in the embodiments of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device or the base station in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute corresponding processes implemented by the network device or the base station in the methods in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. With regard to such understanding, the technical solutions of the present application may be essentially implemented or contributed to by the prior art, or may be implemented in a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

the terminal device determines whether to retransmit the first sidestream data before receiving sidestream feedback for the first sidestream data.
The method of claim 1, wherein the terminal device determining whether to retransmit the first sidestream data prior to receiving sidestream feedback for the first sidestream data comprises:

the terminal device determines whether to retransmit the first sidelink data before receiving the sidelink feedback according to first information, wherein the first information comprises at least one of the following:

the priority of the first side line data, the time delay requirement for transmitting the first side line data and the channel busy ratio CBR.
The method of claim 2, wherein the determining, by the terminal device, whether to perform retransmission for the first sidelink data before receiving the sidelink feedback according to the first information comprises:

if the priority of the first side row data is higher than a first threshold, the terminal equipment determines to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the priority of the first side row data is lower than or equal to a first threshold, the terminal device determines not to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the time delay requirement for transmitting the first side row data is lower than a second threshold value, the terminal equipment determines to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the time delay requirement for transmitting the first side row data is higher than or equal to a second threshold value, the terminal device determines not to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the CBR is lower than a third threshold, the terminal device determines to retransmit the first sidelink data before receiving the sidelink feedback; alternatively, the first and second electrodes may be,

if the CBR is higher than or equal to the third threshold, the terminal device determines not to retransmit the first sidelink data before receiving the sidelink feedback.
The method of claim 3, wherein at least one of the first threshold, the second threshold, and the third threshold is preconfigured or network device configured.
The method of claim 3, further comprising:

the terminal device obtains resource pool configuration information, where the resource pool configuration information includes at least one of the first threshold, the second threshold, and the third threshold.
The method according to any of claims 2 to 5, wherein the priority of the first sidelink data is carried in sidelink control information SCI for the first sidelink data.
The method of claim 1, wherein the terminal device determining whether to retransmit the first sidelink data before receiving the sidelink feedback comprises:

the terminal equipment receives configuration information sent by network equipment;

and the terminal equipment determines whether to retransmit the first sideline data before receiving the sideline feedback according to the configuration information.
The method of claim 7, wherein the configuration information indicates whether the terminal device performs retransmission for the first sidestream data before receiving the sidestream feedback by configuring transmission resources of the first sidestream data.
The method according to claim 7 or 8, wherein the configuration information is one of the following:

broadcast information, Radio Resource Control (RRC) signaling and Downlink Control Information (DCI) signaling.
The method according to any one of claims 7 to 9, further comprising:

the terminal device sends second information to the network device, wherein the second information comprises at least one of the following:

the priority of the first side line data, the time delay requirement for transmitting the first side line data and the CBR.
The method according to any one of claims 1 to 10, further comprising:

if it is determined that retransmission for the first side-row data is performed before the side-row feedback is received, the terminal device performs retransmission for the first side-row data before the side-row feedback is received.
The method according to any one of claims 1 to 11, further comprising:

the terminal equipment receives the side feedback;

and the terminal equipment determines whether to retransmit the first side row data or not according to the side row feedback.
A method of wireless communication, comprising:

the network equipment sends configuration information to the terminal equipment, wherein the configuration information is used for the terminal equipment to determine whether retransmission aiming at the first side row data is carried out before side row feedback aiming at the first side row data is received.
The method of claim 13, wherein the configuration information indicates whether the terminal device is to perform retransmission for the first sidestream data before receiving the sidestream feedback by configuring transmission resources of the first sidestream data.
The method of claim 14, wherein the configuration information indicates whether the terminal device performs retransmission for the first sidestream data before receiving the sidestream feedback by configuring transmission resources of the first sidestream data, and wherein the configuration information comprises:

if the configuration information configures at most one transmission resource in one sidestream feedback period, the configuration information indicates that the terminal equipment does not perform retransmission for the first sidestream data before receiving the sidestream feedback; alternatively, the first and second electrodes may be,

if the configuration information configures at least two transmission resources in one sidestream feedback period, the configuration information indicates that the terminal device retransmits the first sidestream data before receiving the sidestream feedback.
The method according to any of claims 13 to 15, wherein the configuration information is one of:

broadcast information, Radio Resource Control (RRC) signaling and Downlink Control Information (DCI) signaling.
The method according to any one of claims 13 to 16, further comprising:

the network device receives second information sent by the terminal device, wherein the second information comprises at least one of the following:

the priority of the first side line data, the time delay requirement for transmitting the first side line data and the channel busy ratio CBR.
A terminal device, comprising:

a processing unit to determine whether to perform a retransmission for first side row data before receiving side row feedback for the first side row data.
The terminal device of claim 18, wherein the processing unit is specifically configured to:

determining whether to retransmit the first sidelink data before receiving the sidelink feedback according to first information, wherein the first information comprises at least one of the following:

the priority of the first side line data, the time delay requirement for transmitting the first side line data and the channel busy ratio CBR.
The terminal device of claim 19, wherein the processing unit is specifically configured to:

if the priority of the first side row data is higher than a first threshold value, determining to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the priority of the first side row data is lower than or equal to a first threshold, determining that retransmission for the first side row data is not performed before the side row feedback is received; alternatively, the first and second electrodes may be,

if the time delay requirement for transmitting the first side row data is lower than a second threshold value, determining to retransmit the first side row data before receiving the side row feedback; alternatively, the first and second electrodes may be,

if the time delay requirement for transmitting the first side row data is higher than or equal to a second threshold value, determining that retransmission for the first side row data is not performed before the side row feedback is received; alternatively, the first and second electrodes may be,

if the CBR is lower than a third threshold value, determining to retransmit the first side row data before the side row feedback is received; alternatively, the first and second electrodes may be,

determining that retransmission for the first sidelink data is not performed before the sidelink feedback is received if the CBR is greater than or equal to a third threshold.
The terminal device of claim 20, wherein at least one of the first threshold, the second threshold, and the third threshold is pre-configured or configured for a network device.
The terminal device according to claim 20, wherein the processing unit is further configured to obtain resource pool configuration information, where the resource pool configuration information includes at least one of the first threshold, the second threshold, and the third threshold.
The terminal device according to any of claims 19 to 22, wherein the priority of the first sidelink data is carried in sidelink control information SCI for the first sidelink data.
The terminal device of claim 18, wherein the terminal device further comprises: a communication unit for communicating with the mobile station via the wireless communication unit,

the communication unit is used for receiving configuration information sent by the network equipment;

the processing unit is further configured to determine whether to perform retransmission for the first sideline data before receiving the sideline feedback according to the configuration information.
The terminal device of claim 24, wherein the configuration information indicates whether the terminal device performs retransmission for the first sidestream data before receiving the sidestream feedback by configuring transmission resources of the first sidestream data.
The terminal device according to claim 24 or 25, wherein the configuration information is one of:

broadcast information, Radio Resource Control (RRC) signaling and Downlink Control Information (DCI) signaling.
The terminal device according to any of claims 24 to 26, characterized in that the terminal device further comprises: a communication unit for communicating with the mobile station via the wireless communication unit,

the communication unit is configured to send second information to the network device, where the second information includes at least one of:

the priority of the first side line data, the time delay requirement for transmitting the first side line data and the CBR.
The terminal device according to any of claims 18 to 27, wherein the terminal device further comprises: a communication unit for communicating with the mobile station via the wireless communication unit,

if it is determined that the retransmission for the first side-row data is performed before the side-row feedback is received, the communication unit is configured to perform the retransmission for the first side-row data before the side-row feedback is received.
The terminal device according to any of claims 18 to 28, wherein the terminal device further comprises: a communication unit for communicating with the mobile station via the wireless communication unit,

the communication unit is used for receiving the sideline feedback;

the processing unit is further configured to determine whether to perform retransmission for the first side row data according to the side row feedback.
A network device, comprising:

the communication unit is used for sending configuration information to a terminal device, and the configuration information is used for the terminal device to determine whether retransmission aiming at first side row data is carried out before side row feedback aiming at the first side row data is received.
The network device of claim 30, wherein the configuration information indicates, by configuring transmission resources of the first sidestream data, whether the terminal device performs retransmission for the first sidestream data before receiving the sidestream feedback.
The network device of claim 31, wherein the configuration information indicates, by configuring transmission resources of the first sidestream data, whether the terminal device performs retransmission for the first sidestream data before receiving the sidestream feedback, and comprises:

if the configuration information configures at most one transmission resource in one sidestream feedback period, the configuration information indicates that the terminal equipment does not perform retransmission for the first sidestream data before receiving the sidestream feedback; alternatively, the first and second electrodes may be,

if the configuration information configures at least two transmission resources in one sidestream feedback period, the configuration information indicates that the terminal device retransmits the first sidestream data before receiving the sidestream feedback.
The network device of any of claims 30 to 32, wherein the configuration information is one of:

broadcast information, Radio Resource Control (RRC) signaling and Downlink Control Information (DCI) signaling.
The network device according to any of claims 30 to 33, wherein the communication unit is further configured to receive second information sent by the terminal device, wherein the second information includes at least one of the following:

the priority of the first side line data, the time delay requirement for transmitting the first side line data and the channel busy ratio CBR.
A terminal device, comprising: a processor and a memory, the memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any one of claims 1 to 12.
A network device, comprising: a processor and a memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any one of claims 13 to 17.
An apparatus, comprising: a processor for calling and running a computer program from a memory to cause a device in which the apparatus is installed to perform the method of any one of claims 1 to 12.
An apparatus, comprising: a processor for invoking and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method of any of claims 13-17.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 12.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 13 to 17.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 12.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 13 to 17.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1 to 12.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 13-17.