CN110381463B

CN110381463B - Method and equipment for transmitting sidelink information

Info

Publication number: CN110381463B
Application number: CN201810326863.6A
Authority: CN
Inventors: 刘思綦; 纪子超; 郑倩; 王文
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2021-02-26
Anticipated expiration: 2038-04-12
Also published as: CN110381463A; WO2019196826A1

Abstract

The embodiment of the invention discloses a method and equipment for transmitting sidelink information, relates to the technical field of communication, and aims to solve the problem that the mode of transmitting the sidelink information by adopting fixed transmission parameters cannot meet the requirement of transmitting the sidelink information under the scenes of large coverage, high frequency band, high moving speed and the like in an NR (noise reduction) system. The specific scheme is as follows: the UE acquires transmission parameters, and the transmission parameters are used for the UE to send or receive the sidelink information on the sidelink; the UE transmits or receives sidelink information on the sidelink by using the transmission parameter. The embodiment of the invention is applied to the process of transmitting the sidelink information by adopting the transmission parameters under different scenes in the NR system.

Description

Method and equipment for transmitting sidelink information

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a method and equipment for transmitting side link information.

Background

With the development of mobile communication technology, fifth generation mobile communication (5G) technology has become mature. In the car networking scenario in the 5G technology, fixed transmission parameters are generally adopted to transmit side link (sidelink) information between devices.

Currently, in the 5G technology, in order to meet different requirements in different scenarios, a new radio access technology (hereinafter, referred to as NR) is proposed. Since NR requires that an NR system supports large coverage, high frequency band, and high moving speed, the manner of transmitting sidelink information using fixed transmission parameters described above cannot meet the requirement of transmitting sidelink information in the NR system under the scenarios of large coverage, high frequency band, and high moving speed.

Disclosure of Invention

The embodiment of the invention provides a method and equipment for transmitting sidelink information, which aim to solve the problem that the requirement for transmitting the sidelink information under the scenes of large coverage, high frequency band, high moving speed and the like in an NR (noise-and-noise) system cannot be met by adopting a fixed transmission parameter to transmit the sidelink information.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

in a first aspect of the embodiments of the present invention, a method for transmitting sidelink information is provided, where the method for transmitting sidelink information may include: user Equipment (UE) acquires a transmission parameter, wherein the transmission parameter is used for the UE to send or receive sidelink information on a sidelink; the UE transmits or receives sidelink information on the sidelink by using the transmission parameter.

In a second aspect of the embodiments of the present invention, a UE is provided, where the UE may include: an acquisition unit and a transmission unit. The acquiring unit is configured to acquire a transmission parameter, where the transmission parameter is used for the UE to send or receive sidelink information on a sidelink. And the transmission unit is used for sending or receiving the side link information on the side link by adopting the transmission parameters acquired by the acquisition unit.

In a third aspect of the embodiments of the present invention, a UE is provided, where the UE includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, and the computer program, when executed by the processor, implements the steps of the method for transmitting sidelink information according to the first aspect.

A fourth aspect of embodiments of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for transmitting sidelink information as described in the first aspect.

In the embodiment of the invention, when the UE is in different scenes (such as different coverage areas, frequency bands or moving speeds and the like), the UE can obtain different transmission parameters, so that when the UE transmits the sidelink information by adopting the transmission parameters, the requirement of transmitting the sidelink information in different scenes can be dynamically adapted, and the communication efficiency can be improved.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a method for transmitting sidelink information according to an embodiment of the present invention;

fig. 3 is a second schematic diagram illustrating a method for transmitting sidelink information according to an embodiment of the present invention;

fig. 4 is a third schematic diagram illustrating a method for transmitting sidelink information according to an embodiment of the present invention;

fig. 5 is a fourth schematic diagram illustrating a transmission method of sidelink information according to an embodiment of the present invention;

fig. 6 is a fifth schematic diagram illustrating a transmission method of sidelink information according to an embodiment of the present invention;

fig. 7 is a sixth schematic diagram illustrating a method for transmitting sidelink information according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a UE according to an embodiment of the present invention;

fig. 9 is a second schematic structural diagram of a UE according to the second embodiment of the present invention;

fig. 10 is a third schematic structural diagram of a UE according to an embodiment of the present invention;

fig. 11 is a hardware schematic diagram of a UE according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first" and "second," and the like, in the description and in the claims of embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first UE and the second UE, etc. are for distinguishing different UEs, not for describing a specific order of the UEs. In the description of the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified.

The term "and/or" herein is an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, a/B denotes a or B.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The following explains some concepts and/or terms involved in the method and apparatus for transmitting sidelink information according to the embodiments of the present invention.

Sidelink (sidelink): is a link for transmitting (e.g., sending or receiving) information between the UE and the UE. The information transmitted by the UE on the sidelink is called sidelink information. The process by which a UE transmits information with other UEs over a sidelink is referred to as sidelink communications, which may include Device-to-Device (D2D) and Vehicle-to-outside (V2X) communications, among others. Among them, V2X mainly includes Vehicle-to-Vehicle communication (V2V), Vehicle-to-Infrastructure communication (V2I), Vehicle-to-Network communication (V2N), and Vehicle-to-human communication (V2P).

Quality of Service (QoS): the method is a safety mechanism in the network, is a technology for solving the problems of delay, blockage and the like of the network, and can provide better service capability for network communication. The QoS may include parameters such as transmission bandwidth, transmission delay, and packet loss rate.

The embodiment of the invention provides a method and equipment for transmitting sidelink information, wherein when UE is in different scenes (such as different coverage areas, frequency bands or moving speeds) the UE can obtain different transmission parameters, so that when the UE transmits the sidelink information by adopting the transmission parameters, the requirement of transmitting the sidelink information in different scenes can be dynamically adapted, and the communication efficiency can be improved.

The transmission parameters in the embodiment of the present invention may include parameter names and parameter values. The parameter value may be a specific value or a value range. The method can be determined according to actual use requirements, and the embodiment of the invention is not limited.

The method and the device for transmitting the sidelink information provided by the embodiment of the invention can be applied to a communication system. The method and the device can be particularly applied to the process that the UE transmits the sidelink information by adopting the transmission parameters under different scenes of the communication system.

It should be noted that, in the embodiment of the present invention, the communication system may include a Long Term Evolution (LTE) communication system, an NR communication system, a subsequent communication system, and the like.

Illustratively, the LTE communication system may be a sidelink communication system in LTE, the NR communication system may be a sidelink communication system in NR, and the subsequent communication system may be a subsequent sidelink communication system.

Fig. 1 illustrates an architecture diagram of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system may include a first UE 01, an access network device 02, and a second UE 03. The first UE 01 and the access network device 02 may establish a connection therebetween, and the access network device 02 and the second UE 03 may establish a connection therebetween. And a connection may also be established between the first UE 01 and the second UE 03. It is understood that the communication between the first UE 01 and the second UE 03 is a sidelink communication.

It should be noted that, in the embodiment of the present invention, the first UE 01 and the access network device 02 shown in fig. 1 may be in a wireless connection; the access network device 02 and the second UE 03 may also be in wireless connection, and the first UE 01 and the second UE 03 may also be in wireless connection. To illustrate the connection relationships between the first UE 01 and the access network device 02, between the access network device 02 and the second UE 03, and between the first UE 01 and the second UE 03 more clearly, fig. 1 illustrates the connection relationships between the first UE 01 and the access network device 02, between the access network device 02 and the second UE 03, and between the first UE 01 and the second UE 03 with solid lines.

A UE (e.g., the first UE 01 or the second UE 03 shown in fig. 1) is a device that provides voice and/or data connectivity to a user, a handheld device with wired/wireless connectivity, or other processing device connected to a wireless modem. A UE may communicate with one or more core Network devices via a Radio Access Network (RAN). The UE may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, or a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, that exchanges speech and/or data with the RAN, such as a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and so on. A UE may also be referred to as a User Agent (User Agent) or a terminal device, etc.

The access network device 02 may be a base station. A base station is a device deployed in a RAN for providing wireless communication functions for UEs. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, names of devices having a base station function may be different, for example, in a third generation mobile communication (3G) network, called a base station (Node B), in an LTE system, called an evolved NodeB (eNB or eNodeB), and so on. As communication technology evolves, the name "base station" may change.

The following describes a method and a device for transmitting sidelink information according to an embodiment of the present invention in detail through a specific embodiment and an application scenario thereof with reference to the accompanying drawings.

Currently, in the prior art, UE transmits sidelink information on a sidelink by using fixed transmission parameters, and with the development of 5G technology, NR requires an NR system to support large coverage, high frequency band and high moving speed. If the UE continues to transmit the sidelink information by using the fixed transmission parameter in the NR system under the scenarios of large coverage, high frequency band, high moving speed, etc., the problems of channel time selectivity degradation, short millimeter wave transmission distance, etc. may be caused, and therefore the above-mentioned manner of transmitting the sidelink information by using the fixed transmission parameter cannot meet the requirement of transmitting the sidelink information in the scenarios of large coverage, high frequency band, high moving speed, etc. in the NR system.

In order to solve the foregoing technical problem, an embodiment of the present invention provides a method for transmitting sidelink information, and an example of the method for transmitting sidelink information provided in the embodiment of the present invention is described below with an interaction between a first UE and a second UE as an example, and assuming that the first UE is a sending-end UE and the second UE is a receiving-end UE.

In each method embodiment of the present invention, in order to distinguish between a transmission parameter acquired by a first UE and a transmission parameter acquired by a second UE, the transmission parameter acquired by the first UE may be referred to as a first transmission parameter, and the transmission parameter acquired by the second UE may be referred to as a second transmission parameter. In addition, in order to distinguish the mapping relationship used when the first UE acquires the transmission parameters from the mapping relationship used when the second UE acquires the transmission parameters, the mapping relationship used when the first UE acquires the transmission parameters may be referred to as a first mapping relationship, and the mapping relationship used when the second UE acquires the transmission parameters may be referred to as a second mapping relationship. And, in order to distinguish between the indication information of the higher layer transmission received by the first UE and the indication information of the higher layer transmission received by the second UE, the indication information of the higher layer transmission received by the first UE may be referred to as first indication information, and the indication information of the higher layer transmission received by the second UE may be referred to as second indication information.

Based on the communication system shown in fig. 1, an embodiment of the present invention provides a method for transmitting sidelink information, which may include steps 101 to 104 described below, as shown in fig. 2.

Step 101, a first UE acquires a first transmission parameter.

The first transmission parameter may be used for the first UE to transmit the sidelink information on the sidelink.

Optionally, in an embodiment of the present invention, the first transmission parameter may include at least one of the following: transmission waveform, value configuration information, Modulation and Coding Scheme (MCS), transmission bandwidth, transmission resource, carrier aggregation mode, transmission cycle, retransmission multiplexing mode, retransmission times, time domain duration required for retransmission once, time domain duration required for completing all retransmissions, time domain interval of retransmission, bandwidth required for retransmitting once, total bandwidth required for completing all retransmissions, frequency domain interval of retransmission, retransmission cycle, transmission Power, Power Control target, maximum transmission Power, Power adjustment factor, Transmission Power Control (TPC) command, Power spectral density difference between channels, transmit diversity mode, precoding mode, transmission sequence, transmission format, channel multiplexing mode, resource pool multiplexing mode, congestion Control strategy, merging mode, communication distance requirement, transmission delay requirement, signal to interference plus noise ratio requirement, channel to interference plus noise ratio requirement, Signal-to-noise Ratio requirements, transmission rate requirements, block error rate requirements, error vector magnitude requirements, mobile speed requirements, Channel Busy Rate (CBR) requirements, Channel Occupancy rate (Channel Occupancy Ratio) requirements, and reliability requirements, among others.

Optionally, in this embodiment of the present invention, the transmission waveform may include Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) and Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM).

Optionally, in an embodiment of the present invention, the numerical configuration information (numerology) may include at least one of a CP and a Subcarrier Spacing (SCS). In NR systems, a variety of numerical configuration information may be supported, for example, subcarrier spacing may include 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz, etc. Where SCS increases and CP decreases. In the case where the SCS is small and the CP is long, since the inter-symbol interference can be avoided by the long CP, this case can be applicable to the scenario where the transmission delay is large and/or the synchronization timing is not ideal. Within a certain SCS range, the performance of the larger SCS under the large doppler effect is more stable than that of the smaller SCS under the large doppler effect, so the larger SCS can be suitable for the scenario of high UE moving speed. In addition, when the SCS is larger, the duration of one OFDM symbol is shorter, so that the total duration required for beam scanning can be reduced, and thus the larger SCS can be applied to a scenario of beam scanning with a large radix.

Optionally, in this embodiment of the present invention, the Carrier aggregation mode may be used to indicate whether to perform Carrier aggregation, and transmit data using several CCs in all Carrier units (CCs) in a current aggregated Carrier.

Optionally, in this embodiment of the present invention, the retransmission multiplexing manner may be used to indicate: if multiple retransmissions exist, the multiple retransmissions are multiplexed by Time Division Multiplexing (TDM) or Frequency Division Multiplexing (FDM).

Optionally, in this embodiment of the present invention, the power control target may include a power target value, an object referred to in power control, and a reference power for power control.

Optionally, in this embodiment of the present invention, the power adjustment factor may include a path loss compensation factor and a transmission power value.

Optionally, in this embodiment of the present invention, the power spectral density difference between the channels may include a power spectral density difference between any two signals of a data signal, a control signal, a synchronization signal, a broadcast signal, a discovery signal, and a reference signal. For example, the power spectral density difference between the channels may include a Physical Sidelink Shared Channel (psch), a Physical Sidelink Control Channel (PSCCH), a Primary Sidelink Synchronization Signal (PSSS), a Secondary Sidelink Synchronization Signal (SSSS), a Physical Sidelink Broadcast Channel (PSBCH), a Physical Sidelink Discovery Channel (PSDCH), a Demodulation Reference Signal (DMRS), a Sounding Reference Signal (Sounding Reference Signal, SRS), a Channel State Information Reference Signal (Channel State Information, Signal-RS), and a Tracking Signal (CSI-RS), and the like.

It will be appreciated that the PSSCH described above may be used to transmit data signals; the PSCCH may be used for transmitting control signals; the PSBCH may be used to transmit broadcast signals; the above PSDCH may be used to transmit a discovery signal.

Optionally, in this embodiment of the present invention, the transmit diversity scheme may include whether to use transmit diversity and the number of diversity streams. Wherein, whether to transmit diversity indicates whether to transmit data in a diversity mode; the number of streams for diversity indicates the number of data streams when data is transmitted in a diversity scheme.

Optionally, in this embodiment of the present invention, the transmission sequence may include at least one of a sequence mapping method, a sequence type, a sequence scrambling code, and a cyclic Shift (cyclic Shift) of the sequence. The sequence mapping method may include: mapping a frequency domain and then a time domain; or mapping the time domain first and then mapping the frequency domain; or mapping the frequency domain according to the sequence of the frequency domain numbers from large to small; or mapping the frequency domain according to the sequence of the frequency domain numbers from small to large.

Optionally, in this embodiment of the present invention, the transmission format may include at least one of a number of symbols occupied by a Reference Signal (RS), a time-domain position occupied by the RS, an RS density, whether the Reference Signal is a comb (comb), a number of combs used by the Reference Signal, and the like.

Optionally, in this embodiment of the present invention, the signal multiplexing format may be FDM or TDM performed on the control signal and the data signal. Wherein the time domain and/or the frequency domain of the control signal and the data signal may or may not be adjacent.

Optionally, in this embodiment of the present invention, the resource pool multiplexing format may be that at least two resource pools are FDM, TDM, or overlap.

Optionally, in the embodiment of the present invention, the congestion control policy may include centralized control of the base station and user self-adjustment.

Optionally, in this embodiment of the present invention, the combining mode may include a diversity reception mode. The diversity reception means reception using a diversity scheme when data is received.

Optionally, in an embodiment of the present invention, the moving speed requirement may be an absolute speed requirement or a relative speed requirement.

Step 102, the first UE sends the sidelink information to the second UE on the sidelink by using the first transmission parameter.

In the embodiment of the present invention, the first UE may send a physical layer signal to the second UE on the sidelink by using the first transmission parameter, where the physical layer signal carries sidelink information.

Optionally, in this embodiment of the present invention, the physical layer signal may be a broadcast signal, a control signal, a data signal, a synchronization signal, a discovery signal, or a reference signal transmitted on a sidelink.

Step 103, the second UE obtains a second transmission parameter.

Optionally, in this embodiment of the present invention, the second transmission parameter acquired by the second UE may be preconfigured or predefined; or, the second UE may also obtain the mapping relationship (i.e., the second mapping relationship); alternatively, the second UE may be acquired based on the indication information (i.e., the second indication information) transmitted by the higher layer; alternatively, the first UE transmission may also be received.

In this embodiment of the present invention, the first transmission parameter obtained by the first UE in step 101 and the second transmission parameter obtained by the second UE in step 103 may be the same, may be different, or may be partially the same. The specific method can be determined according to actual use requirements, and the embodiment of the invention is not limited.

And step 104, the second UE receives the sidelink information sent by the first UE on the sidelink by adopting the second transmission parameter.

It should be noted that, in the embodiment of the present invention, the number of the second UEs may be one or more, and for convenience of better describing the interaction between the first UE and the second UE, the embodiment of the present invention takes the number of the second UEs as an example for description. When the number of the second UEs is multiple, the interaction between the first UE and each of the multiple second UEs is similar to the interaction between the first UE and the second UE described in the above embodiment, and is not described herein again.

In the embodiment of the invention, the first transmission parameter adopted by the first UE is acquired according to the current actual requirement of the first UE in the current scene of the first UE, so that the first UE can adapt to the requirement of the first UE for sending the sidelink information to the second UE in the current scene when sending the sidelink information to the second UE by adopting the first transmission parameter, thereby improving the communication efficiency.

The embodiment of the invention provides a transmission method of sidelink information, when a first UE is in different scenes (such as different coverage areas, frequency bands or moving speeds and the like), the first UE can obtain different first transmission parameters, so that when the first UE adopts the first transmission parameters to transmit the sidelink information, the requirement of transmitting the sidelink information in different scenes can be dynamically adapted, and the communication efficiency can be improved.

The following describes in detail a specific method for acquiring a first transmission parameter by a first UE in the embodiment of the present invention with reference to the drawings through a specific embodiment and an application scenario thereof.

Optionally, in a first possible implementation manner of the embodiment of the present invention, with reference to fig. 2, as shown in fig. 3, the step 101 may be specifically implemented by a step 101a described below.

Step 101a, the first UE acquires a pre-configured or pre-defined first transmission parameter.

Optionally, in this embodiment of the present invention, the first UE may obtain a first transmission parameter pre-configured by a vendor, predefined by a protocol, or predefined by a user of the first UE.

It should be noted that, in the embodiment of the present invention, the pre-configuration may be understood as vendor pre-configuration of the first UE, and the pre-definition may be understood as protocol pre-definition or user pre-definition.

In the embodiment of the invention, the preconfigured or predefined first transmission parameters acquired by the first UE in different scenes may be different, so that the first UE can meet the requirements of transmitting the sidelink information in different scenes when transmitting the sidelink information by using the preconfigured or predefined first transmission parameters, thereby improving the communication efficiency.

Optionally, in this embodiment of the present invention, in a second possible implementation manner of the embodiment of the present invention, as shown in fig. 4 with reference to fig. 2, before the step 101, the method for transmitting side link information according to the embodiment of the present invention may further include the following step 201, and the step 101 may be specifically implemented by the following step 101 b.

Step 201, the first UE obtains a first mapping relationship.

Wherein the first mapping relationship is a mapping relationship between the QoS requirement and the first transmission parameter.

Optionally, in this embodiment of the present invention, the first mapping relationship may be preconfigured; alternatively, the first mapping relationship may be predefined; or, the first mapping relationship may be configured for the first UE by other UEs; alternatively, the first mapping relationship may be configured by the base station for the first UE, and the base station provides a service for the first UE.

It should be noted that, in the embodiment of the present invention, the other UE may be a UE with a high priority. The UE with high priority may be a high sidelink communication capable UE. The UE having high sidelink communication capability means that the UE has at least one of control, scheduling, management, allocation, cooperation, and processing capabilities. In addition, the other UEs may configure the first mapping relationship for the first UE through broadcasting (for example, may be periodic broadcasting or aperiodic broadcasting).

Optionally, in this embodiment of the present invention, a plurality of first mapping relationships may be preconfigured, predefined, configured by other UEs for the first UE, or configured by the base station for the first UE. In this way, the first UE may obtain, according to the received QoS requirement (specifically, the QoS requirement may be sent by a higher layer to the first UE), the first mapping relationship corresponding to the QoS requirement from the plurality of first mapping relationships.

For example, assuming that the plurality of first mapping relationships are preconfigured, it is assumed that there are 3 preconfigured first mapping relationships. As shown in table 1, an example of a plurality of first mapping relationships of QoS requirements according to an embodiment of the present invention is shown.

TABLE 1

As shown in table 1, the first mapping relation corresponding to QoS requirement 1 is mapping relation 1; the first mapping relation corresponding to the QoS requirement 2 is mapping relation 2; the first mapping relationship corresponding to QoS requirement 3 is mapping relationship 3. The first UE may obtain a first mapping relation corresponding to the QoS requirement from mapping relation 1, mapping relation 2, and mapping relation 3 according to the received QoS requirement. For example, assuming that the QoS requirement received by the first UE is QoS requirement 1, the first UE may obtain, according to QoS requirement 1, from mapping 1, mapping 2 and mapping 3, that the first mapping corresponding to QoS requirement 1 is mapping 1.

Optionally, in the embodiment of the present invention, the step 201 may be specifically implemented by the following step 201a and step 201 b.

Step 201a, the first UE receives a QoS requirement sent by a higher layer.

In the embodiment of the present invention, in the network system, the higher layer may be a layer above an Access Stratum (AS).

In the embodiment of the invention, the first UE can transmit the sidelink information at the AS.

Optionally, in the embodiment of the present invention, the QoS requirement may refer to a QoS value or a QoS value range.

Step 201b, the first UE obtains a first mapping relation corresponding to the QoS requirement according to the QoS requirement.

Optionally, in this embodiment of the present invention, the first UE may obtain, according to the QoS requirement sent by the higher layer, the first mapping relation corresponding to the QoS requirement from the multiple first mapping relations.

For example, referring to table 1, assuming that the QoS requirement received by the first UE is QoS requirement 2, the first UE may obtain a first mapping corresponding to QoS requirement 2, that is, mapping 2 shown in table 1, from a plurality of first mappings (mapping 1, mapping 2, and mapping 3 shown in table 1) according to QoS requirement 2.

Optionally, in the embodiment of the present invention, taking one of the plurality of first mapping relationships as an example, the first mapping relationship may include at least two sub-mapping relationships. Assuming that the at least two sub-mapping relationships specifically include n sub-mapping relationships, the n sub-mapping relationships may be sub-mapping relationship 1, sub-mapping relationship 2, sub-mapping relationship … …, and sub-mapping relationship n, respectively. Also, the sub-mapping relationship 1 may be denoted as QoS requirement → intermediate parameter 1, the sub-mapping relationship 2 may be denoted as intermediate parameter 1 → intermediate parameter 2, … …, and the sub-mapping relationship n may be denoted as intermediate parameter n-1 → first transmission parameter.

Optionally, in this embodiment of the present invention, the intermediate parameter (for example, the intermediate parameter 1, the intermediate parameter 2, … …, and the intermediate parameter n-1) in each sub-mapping relationship may be a transmission parameter, or may also be a non-transmission parameter, which may be specifically set according to an actual use requirement, and this embodiment of the present invention is not limited.

In the following, taking the intermediate parameter in each of the above sub-mapping relationships as a transmission parameter as an example, at least two sub-mapping relationships in the embodiment of the present invention are exemplarily described.

For example, in conjunction with table 1, assuming that mapping relation 1 includes three sub-mapping relations (i.e., n ═ 3 above), which are respectively denoted as QoS requirement 1 → transmission parameter a1, transmission parameter a1 → transmission parameter a2 and transmission parameter a2 → transmission parameter a, mapping relation 1 may be denoted as QoS requirement 1 → transmission parameter a1 → transmission parameter a2 → transmission parameter a; assuming that mapping 2 includes two sub-mappings, which are denoted as QoS requirement 2 → transmission parameter b1 and transmission parameter b1 → transmission parameter b, mapping 2 can be denoted as QoS requirement 2 → transmission parameter b1 → transmission parameter b; assuming that the mapping 3 includes three sub-mappings, which are denoted as QoS requirement 3 → transmission parameter c1, transmission parameter c1 → transmission parameter c2 and transmission parameter c2 → transmission parameter c, the mapping 3 can be denoted as QoS requirement 3 → transmission parameter c1 → transmission parameter c2 → transmission parameter c.

Step 101b, the first UE obtains the first transmission parameter according to the first mapping relationship.

Exemplarily, in conjunction with table 1, as shown in table 2, an example of a first mapping relationship (representing a mapping relationship between QoS requirements and first transmission parameters) provided by the embodiment of the present invention is shown.

TABLE 2

First mapping relation	QoS requirements	First transmission parameter
			Mapping relation 1	QoS requirement 1	Transmission parameter a
Mapping relation 2	QoS requirement 2	Transmission parameter b
			Mapping relation 3	QoS requirement 3	Transmission parameter c

As shown in table 2, mapping relation 1 is a mapping relation between QoS requirement 1 and transmission parameter a, and may be denoted as QoS requirement 1 → transmission parameter a; mapping relation 2 is a mapping relation between QoS requirement 2 and transmission parameter b, and may be denoted as QoS requirement 2 → transmission parameter b; mapping 3 is a mapping between QoS requirement 3 and transmission parameter c, and can be denoted as QoS requirement 3 → transmission parameter c. If the QoS requirement received by the first UE is QoS requirement 1, the first UE may obtain mapping relation 1 corresponding to QoS requirement 1 from mapping relation 1, mapping relation 2, and mapping relation 3, and then obtain transmission parameter a according to mapping relation 1. Thus, the first UE may obtain the transmission parameter a according to the received QoS requirement 1.

Exemplarily, when the value range of the QoS requirement is assumed to be a1, the first transmission parameter corresponding to a1 is a transmission waveform DFT-S-OFDM; when the value range of the QoS requirement is a2, the first transmission parameter corresponding to a2 is a transmission waveform CP-OFDM. If the QoS requirement received by the first UE is QoS requirement 1, and the value of QoS requirement 1 is located in a1, the first UE may obtain mapping relation 1 according to QoS requirement 1 (i.e., QoS requirement 1 → transmission parameter a), and obtain transmission parameter a as transmission waveform DFT-S-OFDM according to mapping relation 1. If the QoS requirement received by the first UE is QoS requirement 2, and the value of QoS requirement 2 is located in a2, the first UE may obtain mapping relation 2 (i.e., QoS requirement 2 → transmission parameter b) according to QoS requirement 2, and obtain transmission parameter b as transmission waveform CP-OFDM according to mapping relation 2.

For another example, assuming that the value range of the QoS requirement is A3, the first transmission parameter corresponding to A3 is a transmission waveform CP-OFDM; the value range of the QoS requirement is A4, and the first transmission parameter corresponding to A4 is transmission waveform DFT-S-OFDM; the value range of the QoS requirement is A5, and the first transmission parameters corresponding to A5 are transmission waveform CP-OFDM and DFT-S-OFDM. If the QoS requirement received by the first UE is QoS requirement 1, and the value of QoS requirement 1 is located in a3, the first UE may obtain mapping relation 1 (i.e., QoS requirement 1 → transmission parameter a) according to QoS requirement 1, and obtain transmission parameter a as transmission waveform CP-OFDM according to mapping relation 1. If the QoS requirement received by the first UE is QoS requirement 2, and the value of QoS requirement 2 is located in a4, the first UE may obtain mapping relation 2 according to QoS requirement 2 (i.e., QoS requirement 2 → transmission parameter b), and obtain transmission parameter b as transmission waveform DFT-S-OFDM according to mapping relation 2. If the QoS requirement received by the first UE is QoS requirement 3, and the value of QoS requirement 3 is located in a5, the first UE may obtain mapping 3 according to QoS requirement 3 (i.e., QoS requirement 3 → transmission parameter c), and obtain transmission parameter c according to mapping 3 as any one of transmission waveforms CP-OFDM and DFT-S-OFDM.

It is understood that the above-mentioned a5 may be an overlapping portion of A3 and a 4. That is, when the value of the QoS requirement received by the first UE is located in the overlapping portion, the first transmission parameter acquired by the first UE may be any one of the first transmission parameter corresponding to A3 and the first transmission parameter corresponding to a 4.

Further exemplarily, when the value range of the QoS requirement is B1, the first transmission parameter corresponding to B1 is transmission power 1 with a value range of P1; when the QoS requirement has a value range of B2, the first transmission parameter corresponding to B2 is transmission power 2 with a value range of P2. If the QoS requirement received by the first UE is QoS requirement 1 and the value of QoS requirement 1 is located in B1, the first UE may obtain mapping relation 1 according to QoS requirement 1 (i.e., QoS requirement 1 → transmission parameter a), and obtain transmission power 1 with the value range of P1 according to mapping relation 1. If the QoS requirement received by the first UE is QoS requirement 2 and the value of QoS requirement 2 is located in B2, the first UE may obtain mapping relation 2 according to QoS requirement 2 (i.e., QoS requirement 2 → transmission parameter B), and obtain transmission power 2 with the value range of P2 according to mapping relation 2.

It can be understood that, in the embodiment of the present invention, the transmission waveform acquired by the first UE is a waveform in which the first UE transmits a physical layer signal carrying sidelink information.

It should be noted that, in the embodiment of the present invention, because the value ranges of the QoS requirements may overlap (as described above, a1 and a2 may overlap), when the value ranges of the QoS requirements overlap, the first UE may obtain any one of the first transmission parameter corresponding to a1 and the first transmission parameter corresponding to a 2; or, the first UE may also obtain one of the first transmission parameter corresponding to a1 and the first transmission parameter corresponding to a2 in other manners. The method and the device can be specifically set according to actual use requirements, and the embodiment of the invention is not limited.

In the embodiment of the invention, because the first mapping relations obtained by the first UE are different in different scenes, and the first transmission parameters obtained by the first UE according to the first mapping relations are different, when the first UE transmits the sidelink information by using the obtained first transmission parameters, the first UE can adapt to the requirements of transmitting the sidelink information in different scenes, thereby improving the communication efficiency.

Optionally, in this embodiment of the present invention, the first mapping relationship obtained by the first UE according to the QoS requirement sent by the higher layer may include at least two sub-mapping relationships. The step 101b can be specifically realized by the step 101 b' described below.

Step 101 b', the first UE obtains the first transmission parameter according to the at least two sub-mapping relationships.

It should be noted that, in the embodiment of the present invention, for the description of the at least two sub-mapping relationships, reference may be specifically made to the related description of the at least two sub-mapping relationships in step 201b, which is not described herein again.

For example, in conjunction with table 1, assume that mapping 2 may include two sub-mappings, which are sub-mapping 1 and sub-mapping 2, respectively, and sub-mapping 1 is denoted as QoS requirement 2 → transmission parameter b1, and sub-mapping 2 is denoted as transmission parameter b1 → transmission parameter b. The first UE may obtain the transmission parameter b1 according to the sub-mapping relation 1 (i.e., QoS requirement 2 → transmission parameter b1), and then obtain the transmission parameter b according to the sub-mapping relation 2 (i.e., transmission parameter b1 → transmission parameter b).

For example, assuming that a value of the QoS requirement corresponds to a communication distance requirement (specifically, may be a sidelink communication distance requirement), when a value range of the communication distance requirement is X1, a first transmission parameter corresponding to X1 is a transmission waveform DFT-S-OFDM; when the value range of the communication distance requirement is X2, the first transmission parameter corresponding to X2 is a transmission waveform CP-OFDM. If the QoS requirement received by the first UE is QoS requirement 2, the first UE may obtain mapping 2 (i.e., QoS requirement 2 → transmission parameter b1 and transmission parameter b1 → transmission parameter b) according to the QoS requirement 2, and obtain transmission parameter b1 as the communication distance requirement according to the sub-mapping 1 (i.e., QoS requirement 2 → transmission parameter b1) in mapping 2. When the value of the communication distance requirement is located in X1, the first UE may obtain the transmission parameter b as the transmission waveform DFT-S-OFDM according to the sub-mapping relation 2 (i.e., transmission parameter b1 → transmission parameter b) in the mapping relation 2; when the value of the communication distance requirement is located in X2, the first UE may obtain the transmission parameter b as the transmission waveform CP-OFDM according to the sub-mapping relation 2 (i.e., the transmission parameter b1 → the transmission parameter b) in the mapping relation 2.

For another example, assuming that the value of the QoS requirement corresponds to a communication distance requirement (specifically, may be a sidelink communication distance requirement), when the value range of the communication distance requirement is X3, the first transmission parameter corresponding to X3 is transmission power 3 whose value range is P3; when the range of the communication distance requirement is X4, the first transmission parameter corresponding to X4 is transmission power 4 with a range of P4. If the QoS requirement received by the first UE is QoS requirement 2, the first UE may obtain mapping 2 (i.e., QoS requirement 2 → transmission parameter b1 and transmission parameter b1 → transmission parameter b) according to the QoS requirement 2, and obtain transmission parameter b1 as the communication distance requirement according to the sub-mapping 1 (i.e., QoS requirement 2 → transmission parameter b1) in mapping 2. When the value of the communication distance requirement is located in X3, the first UE may obtain the transmission power 3 with the value range of P3 as the transmission parameter b according to the sub-mapping relation 2 (i.e., the transmission parameter b1 → the transmission parameter b) in the mapping relation 2; when the value of the communication distance requirement is within X4, the first UE may obtain the transmission power 4 with the value range of P4 as the transmission parameter b according to the sub-mapping relation 2 (i.e., the transmission parameter b1 → the transmission parameter b) in the mapping relation 2.

For another example, assuming that the value of the QoS requirement corresponds to a power adjustment factor (e.g., a transmission power adjustment factor), when the value range of the power adjustment factor is Y1, the first transmission parameter corresponding to Y1 is the power adjusted according to the power adjustment factor (e.g., the adjusted power may be transmission power 5 whose value range is P5); when the value range of the power adjustment factor is Y2, the first transmission parameter corresponding to Y2 is the power adjusted according to the power adjustment factor (for example, the adjusted power may be transmission power 6 with a value range of P6). If the QoS requirement received by the first UE is QoS requirement 2, the first UE may obtain mapping 2 (i.e., QoS requirement 2 → transmission parameter b1 and transmission parameter b1 → transmission parameter b) according to the QoS requirement 2, and obtain transmission parameter b1 as the power adjustment factor according to the sub-mapping 1 (i.e., QoS requirement 2 → transmission parameter b1) in mapping 2. When the value of the power adjustment factor is located in Y1, the first UE may obtain the power of the transmission parameter b adjusted according to the power adjustment factor according to the sub-mapping relation 2 (i.e., transmission parameter b1 → transmission parameter b) in the mapping relation 2, that is, the transmission power 5 with the value range of P5; when the value of the power adjustment factor is within Y2, the first UE may obtain the transmission parameter b as the power adjusted according to the power adjustment factor according to the sub-mapping relation 2 (i.e., transmission parameter b1 → transmission parameter b) in the mapping relation 2, i.e., the transmission power 6 with the value range of P6.

For another example, assuming that the value of the QoS requirement corresponds to a reliability requirement (specifically, the reliability requirement for sidelink information transmission), when the value range of the reliability requirement is Z1, the first transmission parameter corresponding to Z1 is retransmission number N1; when the value range of the reliability requirement is Z2, the first transmission parameter corresponding to Z2 is the number of retransmissions N2. If the QoS requirement received by the first UE is QoS requirement 2, the first UE may obtain mapping 2 (i.e., QoS requirement 2 → transmission parameter b1 and transmission parameter b1 → transmission parameter b) according to the QoS requirement 2, and obtain transmission parameter b1 as reliability requirement according to sub-mapping 1 (i.e., QoS requirement 2 → transmission parameter b1) in mapping 2. When the value of the reliability requirement is located in Z1, the first UE may obtain the transmission parameter b as the retransmission number N1 according to the sub-mapping relation 2 (i.e., transmission parameter b1 → transmission parameter b) in the mapping relation 2; when the value of the communication distance requirement is located in Z2, the first UE may obtain the transmission parameter b as the retransmission number N2 according to the sub-mapping 2 (i.e., the transmission parameter b1 → the transmission parameter b) in the mapping 2.

In the embodiment of the present invention, since at least two sub-mapping relationships obtained by the first UE are different in different scenarios, and the first transmission parameter obtained by the first UE according to the at least two sub-mapping relationships is different, when the first UE transmits the sidelink information by using the obtained first transmission parameter, the first UE can meet the requirement of transmitting the sidelink information in different scenarios, thereby improving the communication efficiency.

Optionally, in this embodiment of the present invention, in a third possible implementation manner of the embodiment of the present invention, as shown in fig. 5 with reference to fig. 2, before the step 101, the method for transmitting side link information according to the embodiment of the present invention may further include the following step 301, and the step 101 may be specifically implemented by the following step 101 c.

Step 301, the first UE receives first indication information sent by a higher layer.

Wherein the first indication information may be used to instruct the first UE to acquire a pre-configured or pre-defined first transmission parameter.

Step 101c, the first UE obtains a preconfigured or predefined first transmission parameter according to the first indication information.

It should be noted that, in the embodiment of the present invention, when receiving the first indication information sent by the higher layer, the first UE may also receive the QoS requirement sent by the higher layer, and at this time, the first UE still obtains the preconfigured or predefined first transmission parameter according to the indication of the first indication information sent by the higher layer.

In the embodiment of the present invention, since the first indication information sent by the higher layer may be different in different scenarios, the first indication information received by the first UE is different, and the preconfigured or predefined first transmission parameters acquired by the first UE according to the first indication information are also different, so that when the first UE transmits the sidelink information by using the first transmission parameters, the first UE can adapt to the requirements of transmitting the sidelink information in different scenarios, thereby improving the communication efficiency.

Optionally, in an embodiment of the present invention, in a fourth possible implementation manner of the embodiment of the present invention, with reference to fig. 2, as shown in fig. 6, the step 101 may be specifically implemented by a step 101d described below.

And step 101d, the first UE receives the first transmission parameters sent by other UEs on the side link.

Optionally, in this embodiment of the present invention, the other UEs may include a second UE.

In the embodiment of the invention, because the first transmission parameters sent by other UEs received by the first UE in different scenes may be different, the first UE can adapt to the requirements of transmitting the sidelink information in different scenes when transmitting the sidelink information by adopting the received first transmission parameters, thereby improving the communication efficiency.

It should be noted that, in the embodiment of the present invention, a specific method for acquiring the second transmission parameter by the second UE is similar to a specific method for acquiring the first transmission parameter by the first UE, and reference may be specifically made to the description about the specific method for acquiring the first transmission parameter by the first UE in the above four possible implementation manners (i.e., the first possible implementation manner to the fourth possible implementation manner) in the embodiment of the present invention, and details are not repeated here.

Optionally, in the embodiment of the present invention, after the step 101, with reference to fig. 2, as shown in fig. 7, the method for transmitting the sidelink information according to the embodiment of the present invention may further include the following step 401.

Step 401, the first UE sends the first transmission parameter to the second UE on the sidelink.

In the embodiment of the present invention, a first UE may send a physical layer signal to a second UE on a sidelink, where the physical layer signal carries a first transmission parameter.

It is to be understood that, in the embodiment shown in fig. 7, the second transmission parameter acquired by the second UE may include the first transmission parameter.

It should be noted that, in this embodiment of the present invention, in a possible implementation manner, the first UE may first perform step 401, and then perform step 102; that is, the first UE may send the first transmission parameter to the second UE first, and then send the sidelink information to the second UE. In another possible implementation manner, the first UE may perform step 102 and step 401 at the same time; that is, the first UE may simultaneously send the first transmission parameters and the sidelink information to the second UE.

Optionally, in this embodiment of the present invention, in one possible implementation manner described above, the first UE may send the first transmission parameter and the sidelink information to the second UE through two different physical layer signals. In another possible implementation manner, the first UE may send the first transmission parameter and the sidelink information to the second UE through one physical layer signal.

In the embodiment of the present invention, since the first transmission parameter sent by the first UE to the second UE is a transmission parameter adopted when the first UE sends the sidelink information to the second UE, after the first UE sends the first transmission parameter to the second UE, the second UE can accurately obtain the first transmission parameter, so that the second UE can accurately receive the sidelink information sent by the first UE on the sidelink according to the first transmission parameter. In this way, the accuracy of receiving data by the second UE can be improved.

In this embodiment of the present invention, if the first transmission parameter acquired by the first UE is sent by another UE (for example, a second UE), the first transmission parameter acquired by the first UE (that is, the transmission parameter sent by the second UE to the first UE, in this scenario, the first transmission parameter acquired by the first UE may include a second transmission parameter acquired by the second UE) may be used to indicate a receiving behavior (for example, a receiving manner) of the second UE for receiving the sidelink information, so that after the first UE receives the first transmission parameter, the first UE may determine, according to the first transmission parameter, a sending behavior (for example, a sending manner) of the first UE for sending the sidelink information to the second UE, and then the first UE may send the sidelink information to the second UE according to the sending behavior.

For example, assuming that a first transmission parameter (i.e., a transmission parameter sent by the second UE to the first UE) acquired by the first UE may be used to indicate that the receiving manner in which the second UE receives the sidelink information is a diversity receiving manner, after the first UE receives the first transmission parameter, the first UE may determine, according to the first transmission parameter, that the sending manner in which the first UE sends the sidelink information to the second UE is a transmit diversity manner, and then the first UE may send the sidelink information to the second UE according to the transmit diversity manner.

Of course, in an actual implementation, after the first UE receives the transmission parameter (used to indicate the receiving manner of the second UE for receiving the sidelink information) sent by the second UE, the first UE may also ignore the transmission parameter, and send the sidelink information to the second UE according to a manner in a normal case (for example, a manner of using an existing fixed parameter).

It should be noted that, in the above embodiment, the first UE is taken as the sending-end UE, and the second UE is taken as the receiving-end UE, which are taken as examples to exemplarily describe the transmission method of the sidelink information provided in the embodiment of the present invention. In actual implementation, the first UE may also serve as a receiving-end UE, and the second UE may also serve as a sending-end UE. When the second UE is used as the sending-end UE, the second transmission parameter obtained by the second UE may be used for the second UE to send the sidelink information to the first UE; and when the second UE is used as the sending-end UE, the second UE may send the second transmission parameter acquired by the second UE to the first UE, so that the first UE receives the sidelink information sent by the second UE. When the first UE is used as a receiving end UE, the first transmission parameter acquired by the first UE may be used to receive sidelink information sent by the second UE; and when the first UE is used as the receiving-end UE, the first UE may also send the first transmission parameter acquired by the first UE to the second UE, so that the second UE sends the sidelink information to the first UE. Specifically, when the first UE is used as the receiving-end UE and the second UE is used as the sending-end UE, the interaction process between the first UE and the second UE is similar to the interaction process between the first UE and the second UE described in the above embodiment when the first UE is used as the sending-end UE and the second UE is used as the receiving-end UE, which may specifically refer to the relevant description in the above embodiment, and is not repeated here.

Fig. 8 shows a schematic diagram of a possible structure of a UE involved in the embodiment of the present invention. As shown in fig. 8, the UE 80 may include: an acquisition unit 81 and a transmission unit 82.

The obtaining unit 81 may be configured to obtain a transmission parameter, where the transmission parameter is used for the UE to transmit or receive the sidelink information on the sidelink. And a transmission unit, configured to send or receive the sidelink information on the sidelink by using the transmission parameter acquired by the acquisition unit 81.

In a possible implementation manner, the obtaining unit 81 may be specifically configured to obtain a preconfigured or predefined transmission parameter.

In a possible implementation manner, the obtaining unit 81 may be further configured to obtain a mapping relationship between the QoS requirement and the transmission parameter before obtaining the transmission parameter. The obtaining unit 81 may be specifically configured to obtain the transmission parameter according to the mapping relationship.

In a possible implementation, the mapping relationship may be pre-configured; alternatively, the mapping may be predefined; alternatively, the mapping relationship may be configured for the UE by other UEs; or, the mapping relationship may be configured by the base station for the UE, and the base station provides a service for the UE.

In a possible implementation manner, the obtaining unit 81 may be specifically configured to receive a QoS requirement sent by a higher layer; and acquiring a mapping relation corresponding to the QoS requirement according to the QoS requirement.

In a possible implementation manner, the mapping relationship may include at least two sub-mapping relationships. The obtaining unit 81 may be specifically configured to obtain the transmission parameter according to at least two sub-mapping relationships.

In a possible implementation manner, with reference to fig. 8 and as shown in fig. 9, a UE 80 provided in an embodiment of the present invention may further include: a receiving unit 83. The receiving unit 83 may be configured to receive indication information sent by a higher layer before the obtaining unit 81 obtains the transmission parameters, where the indication information may be used to instruct the UE to obtain the preconfigured or predefined transmission parameters. The obtaining unit 81 may be specifically configured to obtain a preconfigured or predefined transmission parameter according to the indication information received by the receiving unit 83.

In a possible implementation manner, the obtaining unit 81 may be specifically configured to receive, on a sidelink, transmission parameters sent by another UE.

In a possible implementation manner, with reference to fig. 8, as shown in fig. 10, a UE 80 provided in an embodiment of the present invention may further include: a sending unit 84. The sending unit 84 may be configured to send the transmission parameters acquired by the acquiring unit 81 on the side link after the acquiring unit 81 acquires the transmission parameters.

In a possible implementation manner, the transmission parameter may include at least one of the following: transmission waveform, value configuration information, modulation and coding strategy, transmission bandwidth, transmission resource, carrier aggregation mode, transmission period, retransmission multiplexing mode, retransmission times, time domain duration required for retransmission once, time domain duration required for completing all retransmissions, time domain interval for retransmission, bandwidth required for retransmitting once, total bandwidth required for completing all retransmissions, frequency domain interval for retransmission, retransmission period, transmission power, power control target, maximum transmission power, power adjustment factor, transmission power control command, power spectral density difference between channels, transmit diversity mode, precoding mode, transmission sequence, transmission format, channel multiplexing mode, resource pool multiplexing mode, congestion control strategy, merging mode, communication distance requirement, transmission delay requirement, signal to interference plus noise ratio requirement, signal to noise ratio requirement, transmission rate requirement, data rate requirement, Block error rate requirements, error vector magnitude requirements, mobile speed requirements, channel busy rate requirements, channel occupancy requirements, and reliability requirements.

The UE 80 provided in the embodiment of the present invention may implement each process implemented by the UE in the foregoing method embodiments, and for avoiding repetition, details are not described here again.

The embodiment of the invention provides the UE, when the UE is in different scenes (such as different coverage areas, frequency bands or moving speeds and the like), the UE can obtain different transmission parameters, so that when the UE adopts the transmission parameters to transmit the sidelink information, the requirement of transmitting the sidelink information in different scenes can be dynamically adapted, and the communication efficiency can be improved.

Fig. 11 shows a hardware schematic diagram of a UE according to an embodiment of the present invention. As shown in fig. 11, the UE 110 includes but is not limited to: a radio frequency unit 111, a network module 112, an audio output unit 113, an input unit 114, a sensor 115, a display unit 116, a user input unit 117, an interface unit 118, a memory 119, a processor 120, and a power supply 121.

It should be noted that, as those skilled in the art will appreciate, the UE structure shown in fig. 11 does not constitute a limitation of the UE, and the UE may include more or less components than those shown in fig. 11, or combine some components, or arrange different components. For example, in the embodiment of the present invention, the UE includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 120 may be configured to obtain transmission parameters; and transmitting or receiving side link information on the side link by adopting the transmission parameters. Wherein the transmission parameters are used for the UE to send or receive the sidelink information on the sidelink.

The embodiment of the invention provides the UE, and when the UE is in different scenes (such as different coverage areas, frequency bands or moving speeds and the like), the UE can obtain different transmission parameters, so that when the UE adopts the transmission parameters to transmit the sidelink information, the requirement of transmitting the sidelink information in different scenes can be dynamically adapted, and the communication efficiency can be improved.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 111 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 120; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 111 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 111 may also communicate with a network and other devices through a wireless communication system.

The UE provides the user with wireless broadband internet access through the network module 112, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 113 may convert audio data received by the radio frequency unit 111 or the network module 112 or stored in the memory 119 into an audio signal and output as sound. Also, the audio output unit 113 may also provide audio output related to a specific function performed by the UE 110 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 113 includes a speaker, a buzzer, a receiver, and the like.

The input unit 114 is used to receive an audio or video signal. The input Unit 114 may include a Graphics Processing Unit (GPU) 1141 and a microphone 1142, and the graphics processing Unit 1141 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 116. The image frames processed by the graphic processor 1141 may be stored in the memory 119 (or other storage medium) or transmitted via the radio frequency unit 111 or the network module 112. The microphone 1142 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 111 in case of the phone call mode.

The UE 110 also includes at least one sensor 115, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 1161 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 1161 and/or the backlight when the UE 110 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the UE attitude (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 115 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 116 is used to display information input by the user or information provided to the user. The Display unit 116 may include a Display panel 1161, and the Display panel 1161 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-Emitting Diode (OLED), or the like.

The user input unit 117 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the UE. Specifically, the user input unit 117 includes a touch panel 1171 and other input devices 1172. Touch panel 1171, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., user operations on or near touch panel 1171 using a finger, stylus, or any suitable object or accessory). Touch panel 1171 can include two portions, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 120, receives a command from the processor 120, and executes the command. In addition, the touch panel 1171 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1171, the user input unit 117 may also include other input devices 1172. Specifically, the other input devices 1172 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein.

Further, touch panel 1171 can be overlaid on display panel 1161, and when touch panel 1171 detects a touch operation thereon or nearby, the touch operation can be transmitted to processor 120 to determine the type of touch event, and then processor 120 can provide a corresponding visual output on display panel 1161 according to the type of touch event. Although in fig. 11, the touch panel 1171 and the display panel 1161 are two independent components to implement the input and output functions of the UE, in some embodiments, the touch panel 1171 and the display panel 1161 may be integrated to implement the input and output functions of the UE, and the implementation is not limited herein.

The interface unit 118 is an interface for connecting an external device to the UE 110. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 118 may be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within the UE 110 or may be used to transmit data between the UE 110 and external devices.

The memory 119 may be used to store software programs as well as various data. The memory 119 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 119 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 120 is a control center of the UE, connects various parts of the entire UE using various interfaces and lines, performs various functions of the UE and processes data by operating or executing software programs and/or modules stored in the memory 119, and calling data stored in the memory 119, thereby performing overall monitoring of the UE. Processor 120 may include one or more processing units; preferably, the processor 120 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 120.

UE 110 may also include a power supply 121 (e.g., a battery) for powering the various components, and preferably, power supply 121 may be logically coupled to processor 120 via a power management system to manage charging, discharging, and power consumption management functions via the power management system.

In addition, the UE 110 includes some functional modules that are not shown, and are not described herein again.

Optionally, an embodiment of the present invention further provides a UE, including a processor 120 as shown in fig. 11, a memory 119, and a computer program stored in the memory 119 and capable of running on the processor 120, where the computer program is executed by the processor 120 to implement the processes of the foregoing method embodiments, and can achieve the same technical effects, and details are not repeated here to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 120 shown in fig. 11, the computer program implements the processes of the method embodiments, and can achieve the same technical effects, and in order to avoid repetition, the computer program is not described herein again. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for transmitting sidelink information, the method comprising:

user Equipment (UE) acquires transmission parameters, wherein the transmission parameters are used for the UE to send or receive sidelink information on a sidelink;

the UE sends or receives the sidelink information on the sidelink by adopting the transmission parameter;

before the UE acquires the transmission parameters, the method further includes:

the UE acquires a mapping relation, wherein the mapping relation is the mapping relation between the QoS requirement and the transmission parameter;

the UE acquires transmission parameters, including:

and the UE acquires the transmission parameters according to the mapping relation.

2. The method of claim 1, wherein the UE obtains transmission parameters, comprising:

the UE acquires the pre-configured or pre-defined transmission parameters.

3. The method of claim 1,

the mapping relationship is pre-configured; alternatively, the mapping is predefined; or the mapping relation is configured for the UE by other UEs; or the mapping relation is configured for the UE by the base station, and the base station provides service for the UE.

4. The method of claim 3, wherein the UE obtains the mapping relationship, comprising:

the UE receives the QoS requirement sent by a higher layer;

and the UE acquires the mapping relation corresponding to the QoS requirement according to the QoS requirement.

5. The method of claim 1, wherein the mapping relationship comprises at least two sub-mapping relationships;

the UE acquires the transmission parameters according to the mapping relation, and the acquisition comprises the following steps:

and the UE acquires the transmission parameters according to the at least two sub-mapping relations.

6. The method of claim 1, wherein the UE obtains transmission parameters, comprising:

and the UE receives the transmission parameters sent by other UEs on the sidelink.

7. The method of claim 1, wherein after the UE obtains the transmission parameters, the method further comprises:

the UE sends the transmission parameters on the sidelink.

8. The method according to any of claims 1 to 7, wherein the transmission parameters comprise at least one of:

transmission waveform, value configuration information, modulation and coding strategy, transmission bandwidth, transmission resource, carrier aggregation mode, transmission period, retransmission multiplexing mode, retransmission times, time domain duration required for retransmission once, time domain duration required for completing all retransmissions, time domain interval for retransmission, bandwidth required for retransmitting once, total bandwidth required for completing all retransmissions, frequency domain interval for retransmission, retransmission period, transmission power, power control target, maximum transmission power, power adjustment factor, transmission power control command, power spectral density difference between channels, transmit diversity mode, precoding mode, transmission sequence, transmission format, channel multiplexing mode, resource pool multiplexing mode, congestion control strategy, merging mode, communication distance requirement, transmission delay requirement, signal to interference plus noise ratio requirement, signal to noise ratio requirement, transmission rate requirement, data rate requirement, Block error rate requirements, error vector magnitude requirements, mobile speed requirements, channel busy rate requirements, channel occupancy requirements, and reliability requirements.

9. A User Equipment (UE) is characterized in that the UE comprises an acquisition unit and a transmission unit;

the acquiring unit is configured to acquire a transmission parameter, where the transmission parameter is used for the UE to send or receive sidelink information on a sidelink;

the transmission unit is configured to send or receive the sidelink information on the sidelink by using the transmission parameter acquired by the acquisition unit;

the obtaining unit is further configured to obtain a mapping relationship before obtaining the transmission parameter, where the mapping relationship is a mapping relationship between a QoS requirement and the transmission parameter;

the obtaining unit is specifically configured to obtain the transmission parameter according to the mapping relationship.

10. The UE according to claim 9, wherein the obtaining unit is specifically configured to obtain the preconfigured or predefined transmission parameters.

11. The UE of claim 9,

12. The UE according to claim 11, wherein the obtaining unit is specifically configured to receive the QoS requirement sent by a higher layer; and acquiring the mapping relation corresponding to the QoS requirement according to the QoS requirement.

13. The UE of claim 9, wherein the mapping relationship comprises at least two sub-mapping relationships;

the obtaining unit is specifically configured to obtain the transmission parameter according to the at least two sub-mapping relationships.

14. The UE according to claim 9, wherein the obtaining unit is specifically configured to receive the transmission parameters sent by other UEs on the sidelink.

15. The UE of claim 9, wherein the UE further comprises a transmitting unit;

the sending unit is configured to send the transmission parameter on the sidelink after the obtaining unit obtains the transmission parameter.

16. The UE of any of claims 9 to 15, wherein the transmission parameters comprise at least one of:

17. A user equipment, UE, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for transmission of sidelink information as claimed in any one of claims 1 to 8.

18. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of transmission of side-link information according to any one of claims 1 to 8.