CN110971354B

CN110971354B - Unicast transmission method, configuration method, terminal and network side equipment

Info

Publication number: CN110971354B
Application number: CN201811140893.4A
Authority: CN
Inventors: 谌丽
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2022-07-15
Anticipated expiration: 2038-09-28
Also published as: CN110971354A

Abstract

The invention provides a unicast transmission method, a configuration method, a terminal and network side equipment, wherein the method comprises the following steps: determining the Sidelink unicast transmission resource distributed by the network side equipment; performing Sidelink data transmission and/or reception on the determined Sidelink unicast transmission resource; in the embodiment of the invention, the receiving terminal can accurately acquire the Sidelink unicast transmission resource, so that data is received at an accurate resource position without searching in the whole resource pool; therefore, the power consumption of the receiving terminal is reduced, the data transmission delay of the receiving terminal is reduced, the receiving terminal can quickly acquire the feedback resource of the direct link, and the feedback delay is reduced.

Description

Unicast transmission method, configuration method, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a unicast transmission method, a configuration method, a terminal, and a network device on a direct link.

Background

Direct inter-device communication is a typical communication means of a V2X (vehicle to updating) system. Devices and devices in close proximity to each other allow direct communication between the devices. For convenience of description, a direct link between devices is defined as a Sidelink link, and a cellular communication link between a Network and a direct communication Device is referred to as a D2N (Device to Network) link, or Uu interface. The schematic diagram of direct communication is shown in fig. 1, where the D2D link is also called a Sidelink link or a PC5 interface.

The devices that communicate directly may all be on-network, or all be off-network, or some devices may be off-network at some devices on-network and some devices off-network. The devices participating in direct communication, i.e. the on-network, are located within the 3GPP direct communication carrier coverage, and the devices participating in direct communication, i.e. the off-network, are not located within the 3GPP direct communication carrier coverage.

Typical direct communication scenarios include the following three:

one-to-one communication (unicast communication) between direct communication devices;

a device can send the same data to all devices in a communication group at a time (group communication);

one device can send the same data to all attached devices at once (broadcast communication).

Direct communication supports two resource allocation methods:

the first resource allocation mode is as follows: the resource allocation mode (mode 1) scheduled by the network side is a mode of allocating a direct link resource for the terminal on the Uu interface by the network side (base station) according to the Sidelink BSR (Buffer state reporting) reported by the terminal.

The second resource allocation method is as follows: the terminal autonomously selects a resource allocation mode of the resource, namely, the terminal autonomously selects one resource from the pre-configured or network broadcast transmission resources to carry out the transmission of the direct communication link.

In the resource allocation mode scheduled by the network side, only the resource needs to be allocated to the sending terminal, and the receiving terminal only needs to perform data detection in the receiving resource pool. This approach only requires one-to-one transmission for the receiving terminal, since the receiving terminal always detects the entire resource pool, which would cause 1) the receiving terminal to consume much power; 2) the receiving terminal has slow processing time, which causes data transmission delay; 3) when NR (new air interface) introduces feedback from the receiving end to the generating end, it may cause a delay in feedback and failure to determine the feedback resource in time.

Disclosure of Invention

Embodiments of the present invention provide a unicast transmission method, a configuration method, a terminal, and a network device, so as to solve the problems in the prior art that a receiving terminal performs data detection in a receiving resource pool during a unicast process of a direct link, which results in large power consumption of the terminal, slow processing time, and prolonged data time.

In order to solve the above problem, an embodiment of the present invention provides a unicast transmission method on a direct link Sidelink, which is applied to a terminal, and includes:

determining the Sidelink unicast transmission resource allocated by the network side equipment;

and transmitting and/or receiving the Sidelink data on the determined Sidelink unicast transmission resource.

The determining the Sidelink unicast transmission resource allocated by the network side equipment comprises the following steps:

acquiring an in-cell unique identifier RNTI (radio network temporary identifier) distributed by network side equipment for a transmitting terminal;

and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the RNTI of the sending terminal.

Wherein, the determining, according to the RNTI of the sending terminal, the Sidelink unicast transmission resource allocated by the network side device includes:

monitoring a first scheduling command scrambled by an RNTI (radio network temporary identifier) of a transmitting terminal; the first scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment;

and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information.

acquiring shared cell unique identifiers RNTI (radio network temporary identifier) distributed by network side equipment for two terminals of Sidelink unicast transmission;

and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the shared RNTI.

Wherein, the determining, according to the shared RNTI, the Sidelink unicast transmission resource allocated by the network side device includes:

monitoring a second scheduling command scrambled by a shared RNTI, wherein the second scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment;

Wherein, the second scheduling command also carries direction indication information for indicating the transmission direction of the allocated Sidelink unicast transmission resource;

or, two terminals in the Sidelink unicast transmission agree in advance on the transmission direction of the allocated Sidelink unicast transmission resource.

Wherein, the determining the Sidelink unicast transmission resource allocated by the network side device includes:

receiving a first configuration resource scheduling signaling sent by a network side device, wherein the first configuration resource scheduling signaling carries information of pre-configuration resources allocated to a terminal by the network side device; the information of the pre-configured resource includes: the period of the pre-configured resource and the time frequency resource position and the transmission format of the Sidelink unicast transmission resource pre-configured by the network side equipment are pre-configured;

And determining the Sidelink unicast transmission resource pre-configured by the network side equipment according to the first configuration resource scheduling signaling.

Wherein, when the terminal is a receiving terminal in the Sidelink unicast transmission, the determining the Sidelink unicast transmission resource allocated by the network side device further includes:

receiving information of pre-configured resources distributed to the terminal by the network side equipment, which is sent by a sending terminal through the Sidelink on the Sidelink unicast transmission resources distributed to the network side equipment; and determining the Sidelink unicast transmission resource preconfigured by the network side equipment according to the information of the preconfigured resource.

receiving a second configured resource scheduling signaling sent by a network side device, wherein the second configured resource scheduling signaling carries a period of a preconfigured resource allocated to a terminal by the network side device and an RNTI (radio network temporary identifier) special for the preconfigured resource scheduling; wherein, the RNTI special for the pre-configuration resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configuration resource transmission;

monitoring a first physical layer scheduling command scrambled by the special RNTI for the pre-configured resource scheduling and used for activating the pre-configured resource transmission; the first physical layer scheduling command carries a time-frequency resource position and a transmission format of a Sidelink unicast transmission resource pre-configured by network side equipment;

And activating the transmission of the pre-configured Sidelink unicast transmission resource according to the first physical layer scheduling command.

receiving a period of a pre-configured resource distributed to the terminal by the network side equipment and an RNTI special for scheduling the pre-configured resource, which are sent by the sending terminal through the Sidelink on the Sidelink unicast transmission resource distributed by the network side equipment; the special RNTI for the pre-configured resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configured resource transmission;

Wherein the method further comprises:

monitoring a second physical layer scheduling command scrambled by the special RNTI for the pre-configured resource scheduling and used for deactivating the transmission of the pre-configured resource;

And controlling the preset Sidelink unicast transmission resource to be distributed inefficiently according to the second physical layer scheduling command.

Wherein, in case that two terminals of the Sidelink unicast transmission are configured with the same pre-configured resource scheduling dedicated RNTI, the method further comprises:

determining the transmission direction of the preconfigured Sidelink unicast transmission resource according to the direction indication information carried by the second configured resource scheduling signaling; or,

and determining the transmission direction of the preconfigured Sidelink unicast transmission resource according to the pre-convention of two terminals in the Sidelink unicast transmission.

The embodiment of the invention also provides a unicast resource configuration method of the direct link Sidelink, which is applied to network side equipment and comprises the following steps:

allocating Sidelink unicast transmission resources;

sending the resource allocation information of the allocated Sidelink unicast transmission resource to a sending terminal in Sidelink unicast transmission, and sending the resource allocation information of the allocated Sidelink unicast transmission resource to a receiving terminal in the Sidelink unicast transmission by the sending terminal; or sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals of Sidelink unicast transmission.

Wherein the method further comprises:

An intra-cell unique identifier RNTI (radio network temporary identifier) distributed for a sending terminal;

transmitting resource allocation information of the allocated Sidelink unicast transmission resource to a transmitting terminal in Sidelink unicast transmission, or transmitting resource allocation information of the allocated Sidelink unicast transmission resource to two terminals in Sidelink unicast transmission, comprising:

and sending a first scheduling command scrambled by the RNTI of the sending terminal, wherein the first scheduling command carries the resource allocation information of the allocated Sidelink unicast transmission resource.

Wherein the method further comprises:

allocating shared cell unique identifiers RNTI for two terminals of Sidelink unicast transmission;

the sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals in the Sidelink unicast transmission includes:

and sending a second scheduling command scrambled by the shared RNTI, wherein the second scheduling command carries the resource allocation information of the allocated Sidelink unicast transmission resource.

Wherein sending the resource allocation information of the allocated Sidelink unicast transmission resource to a sending terminal in the Sidelink unicast transmission, or sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals in the Sidelink unicast transmission, comprises:

sending a first configured resource scheduling signaling, wherein the first configured resource scheduling signaling carries information of pre-configured resources allocated to a terminal by a network side device; the information of the pre-configured resource includes: the period of the pre-configured resource and the time frequency resource position and the transmission format of the Sidelink unicast transmission resource pre-configured by the network side equipment.

sending a second configured resource scheduling signaling, wherein the second configured resource scheduling signaling carries a period of a pre-configured resource allocated to the terminal by the network side equipment and an RNTI special for the pre-configured resource scheduling; wherein, the RNTI special for the pre-configuration resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configuration resource transmission;

And sending a first physical layer scheduling command scrambled by the special RNTI for the pre-configured resource scheduling and used for activating pre-configured resource transmission, wherein the first physical layer scheduling command carries the time-frequency resource position and the transmission format of Sidelink unicast transmission resources pre-configured by network side equipment.

Wherein the method further comprises:

and sending a second physical layer scheduling command scrambled by the special RNTI for the pre-configured resource scheduling and used for deactivating the transmission of the pre-configured resource, wherein the second physical layer scheduling command is used for indicating that the distribution of the pre-configured Sidelink unicast transmission resource in the first physical layer scheduling command fails.

Wherein, in case that the same pre-configured resource scheduling dedicated RNTI is configured for two terminals of Sidelink unicast transmission,

the second configured resource scheduling signaling also carries direction indication information for indicating the transmission direction of the preconfigured Sidelink unicast transmission resource.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes: determining the Sidelink unicast transmission resource distributed by the network side equipment;

The transceiver is configured to: and transmitting and/or receiving the Sidelink data on the determined Sidelink unicast transmission resource.

Wherein the terminals are a sending terminal and a receiving terminal for the Sidelink unicast transmission, and the transceiver is further configured to: acquiring an in-cell unique identifier RNTI (radio network temporary identifier) distributed by network side equipment for a transmitting terminal;

the processor is further configured to: and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the RNTI of the sending terminal.

Wherein the transceiver is further configured to: monitoring a first scheduling command scrambled by an RNTI (radio network temporary identifier) of a transmitting terminal; the first scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment;

the processor is further configured to: and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information.

Wherein, the terminals are a sending terminal and a receiving terminal of the Sidelink unicast transmission, and the transceiver is further configured to: acquiring a shared cell unique identifier RNTI (radio network temporary identifier) distributed by network side equipment for two terminals of Sidelink unicast transmission;

the processor is further configured to:

Wherein the transceiver is further configured to: monitoring a second scheduling command scrambled by a shared RNTI, wherein the second scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment;

the processor is further configured to:

Wherein the transceiver is further configured to:

the processor is further configured to:

and determining the Sildelink unicast transmission resource pre-configured by the network side equipment according to the first configuration resource scheduling signaling.

Wherein, in case the terminal is a receiving terminal in a Sidelink unicast transmission, the transceiver is further configured to:

receiving information of pre-configured resources distributed to the terminal by a network side device, wherein the pre-configured resources are sent by a sending terminal on a Sidelink unicast transmission resource distributed by the network side device through the Sidelink;

the processor is further configured to:

and determining the Sidelink unicast transmission resource preconfigured by the network side equipment according to the information of the preconfigured resource.

Wherein the transceiver is further configured to:

receiving a second configuration resource scheduling signaling sent by a network side device, wherein the second configuration resource scheduling signaling carries a period of a pre-configuration resource allocated to a terminal by the network side device and an RNTI special for pre-configuration resource scheduling; wherein the RNTI special for the pre-configured resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configured resource transmission;

monitoring a first physical layer scheduling command scrambled by the special RNTI for the pre-configuration resource scheduling and used for activating the pre-configuration resource transmission; the first physical layer scheduling command carries a time-frequency resource position and a transmission format of a Silelink unicast transmission resource pre-configured by network side equipment;

The processor is further configured to:

Wherein, in case that the terminal is a receiving terminal in a Sidelink unicast transmission, the transceiver is further configured to:

receiving a pre-configured resource period and a special RNTI (radio network temporary identifier) for pre-configured resource scheduling, which are transmitted by a sending terminal on a Sidelink unicast transmission resource allocated by network side equipment and are allocated to the terminal by the network side equipment; the RNTI special for the pre-configured resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the transmission of the pre-configured resource;

the processor is further configured to:

Wherein the transceiver is further configured to:

monitoring a second physical layer scheduling command scrambled by the special RNTI for the pre-configuration resource scheduling and used for deactivating the pre-configuration resource transmission;

The processor is further configured to:

Wherein, in case that two terminals of the Sidelink unicast transmission are configured with the same RNTI dedicated for the pre-configured resource scheduling, the processor further comprises:

and determining the transmission direction of the preconfigured Sidelink unicast transmission resource according to the pre-agreement of two terminals in the Sidelink unicast transmission.

The embodiment of the invention also provides a unicast transmission device on the direct link Sidelink, which is applied to a terminal and comprises the following steps:

a resource determining module, configured to determine a Sidelink unicast transmission resource allocated by a network side device;

and the transmission module is used for transmitting and/or receiving the Sidelink data on the determined Sidelink unicast transmission resource.

An embodiment of the present invention further 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 unicast transmission method on the direct link Sidelink as described above.

An embodiment of the present invention further provides a network side device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes: allocating Sidelink unicast transmission resources;

the transceiver is configured to:

Wherein the processor is further configured to:

the transceiver is further configured to:

Wherein the processor is further configured to:

allocating shared cell unique identifier RNTI for two terminals of Sidelink unicast transmission;

The transceiver is further configured to:

Wherein the transceiver is further configured to:

sending a second configured resource scheduling signaling, wherein the second configured resource scheduling signaling carries a period of a pre-configured resource allocated to the terminal by a network side device and an RNTI special for scheduling the pre-configured resource; wherein the RNTI special for the pre-configured resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configured resource transmission;

Wherein the transceiver is further configured to:

An embodiment of the present invention further provides a unicast resource configuration device of a direct link Sidelink, which is applied to a network side device, and includes:

a resource allocation module, configured to allocate a Sidelink unicast transmission resource;

a sending module, configured to send resource allocation information of the allocated Sidelink unicast transmission resource to a sending terminal in the Sidelink unicast transmission, where the sending terminal sends the resource allocation information of the allocated Sidelink unicast transmission resource to a receiving terminal in the Sidelink unicast transmission; or sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals of Sidelink unicast transmission.

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 a processor, the steps of the unicast resource configuration method for a direct link Sidelink as described above are implemented.

The technical scheme of the invention at least has the following beneficial effects:

in the unicast transmission method, the configuration method, the terminal and the network side device of the direct link according to the embodiments of the present invention, if both terminals of the Sidelink unicast transmission can determine the Sidelink unicast transmission resource allocated by the network side device, the sending terminal sends data on the determined Sidelink unicast transmission resource, and the receiving terminal receives data on the determined Sidelink unicast transmission resource, thereby reducing the power consumption of the receiving terminal; moreover, as the receiving terminal receives data on the determined Silelink unicast transmission resource, the processing time of the receiving terminal is shorter, and the data transmission delay is reduced; further, when feedback from the receiving terminal to the sending terminal is introduced, the receiving terminal can determine the feedback resource in time, and the feedback time delay is reduced.

Drawings

Fig. 1 shows a schematic diagram representing a V2X communication system;

Fig. 2 is a flowchart illustrating steps of a unicast transmission method on a direct link Sidelink according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating steps of a unicast resource allocation method for a direct link Sidelink according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 shows a schematic structural diagram of a unicast transmission apparatus on a direct link Sidelink according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a unicast resource configuration apparatus of a direct link Sidelink according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2, an embodiment of the present invention provides a unicast transmission method on a direct link Sidelink, which is applied to a terminal, and includes:

step 41, determining the Sidelink unicast transmission resource allocated by the network side equipment;

and 42, transmitting and/or receiving the Sidelink data on the determined Sidelink unicast transmission resource.

The terminals mentioned in the embodiment of the present invention specifically refer to two terminals (i.e., a sending terminal and a receiving terminal) for the sildelink unicast transmission, where the two terminals for the sildelink unicast transmission need to establish a sildelink connection in advance, and both the two terminals for the sildelink unicast transmission can determine the sildelink unicast transmission resource allocated by the network side device, then the sending terminal performs data sending on the determined sildelink unicast transmission resource, and the receiving terminal performs data receiving on the determined sildelink unicast transmission resource; namely, the receiving terminal can accurately acquire data transmission resources (namely, Sidelink unicast transmission resources), so that data reception is carried out at an accurate resource position without searching in the whole resource pool; therefore, the power consumption of the receiving terminal is reduced, the data transmission processing delay of the receiving terminal is reduced, the receiving terminal can quickly acquire the feedback resource of the direct link, and the feedback delay is reduced.

It should be noted that the manner for determining the Sidelink unicast transmission resource by the sending terminal and the receiving terminal of the Sidelink unicast transmission includes at least the following two manners:

firstly, the network side equipment respectively informs the resource allocation information of the distributed Sidelink unicast transmission resource to a sending terminal and a receiving terminal;

secondly, the network side equipment notifies the resource allocation information of the distributed Sidelink unicast transmission resource to the sending terminal, and the sending terminal notifies the corresponding resource allocation information to the receiving terminal.

It should be further noted that the manner for allocating the Sidelink unicast transmission resource by the network side device at least includes the following three ways:

firstly, dynamic scheduling, namely allocating Sidelink unicast transmission resources through dynamic signaling, in this way, a sending terminal receives the dynamic signaling aiming at the sending terminal, and can perform data transmission on the dynamically scheduled resources;

secondly, configuring a resource scheduling mode 1, namely sending the period of the pre-configured resource and the time-frequency resource position and the transmission format of the pre-configured Sidelink unicast transmission resource through RRC signaling, wherein in the mode, after receiving the RRC signaling sent by the resource scheduling mode 1, the terminal can perform data transmission on the allocated pre-configured resource;

Thirdly, configuring a resource scheduling mode 2, namely sending a period of pre-configured resources and an RNTI (radio network temporary identifier) special for pre-configured resource scheduling through RRC (radio resource control) signaling; wherein, the RNTI special for the pre-configuration resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configuration resource transmission; then, the transmission of the pre-configured resource is activated or deactivated through a physical layer scheduling command scrambled by the RNTI special for the pre-configured resource scheduling; in this way, after receiving the RRC signaling sent by the configured resource scheduling mode 2 and the physical layer scheduling command for activating the transmission of the preconfigured resource scrambled by the RNTI dedicated for the scheduling of the preconfigured resource, the terminal may perform data transmission on the activated preconfigured resource.

As a preferred embodiment of the dynamic scheduling, the terminals are a sending terminal and a receiving terminal of the Sidelink unicast transmission, and correspondingly, step 41 includes:

acquiring an intra-cell unique identifier RNTI (radio network temporary identifier) distributed by network side equipment for a sending terminal; the RNTI is an identifier of the sending terminal for direct link scheduling. The RNTI of the transmitting terminal may be referred to as SL-V-RNTI or Sidelink V2X RNTI.

Further, the determining, according to the RNTI of the sending terminal, the Sidelink unicast transmission resource allocated by the network side device includes:

monitoring a first scheduling command scrambled by an RNTI of a transmitting terminal; the first scheduling command carries resource allocation information of the Silelink unicast transmission resource allocated by the network side equipment; the first scheduling command may be a PDCCH (Physical Downlink Control Channel) command.

In short, the network side device allocates the Sidelink unicast transmission resource using the RNTI of the transmitting terminal.

If the first scheduling command includes resource allocation information for the transmitting terminal, the transmitting terminal transmits and transmits the resource allocated according to the first scheduling command to perform data transmission, and the receiving terminal performs data reception on the resource allocated to the transmitting terminal by the first scheduling command.

When the terminal is a transmitting terminal, the network side device may notify the transmitting terminal of the RNTI allocated to the terminal by the network side device through dedicated signaling (e.g., RRC dedicated signaling). When the terminal is a receiving terminal, the network side device may also notify the receiving terminal of an RNTI for direct link scheduling for a transmitting terminal paired with the receiving terminal during transmission through a dedicated signaling (e.g., RRC dedicated signaling); or when a paired terminal of the Sidelink unicast transmission establishes one-to-one connection, the sending terminal informs the corresponding receiving terminal of the RNTI of the sending terminal for the straight-through link scheduling; alternatively, when two terminals propose one-to-one connection, the respective RNTIs for through link scheduling are mutually notified.

Example one

A network side device: allocating Sidelink unicast transmission resources by using a PDCCH command scrambled by an RNTI of a sending terminal;

a sending terminal: monitoring a PDCCH command of a network side device scrambled by RNIT of a transmitting terminal, and if resource allocation information aiming at the transmitting terminal exists, transmitting data on allocated resources;

the receiving terminal: and monitoring a PDCCH order of the network side equipment scrambled by the RNIT of the transmitting terminal, and if the resource allocation information aiming at the transmitting terminal exists, the receiving terminal receives data on the allocated resource according to the PDCCH order.

As another preferred embodiment of dynamic scheduling, the terminals are a sending terminal and a receiving terminal of the Sidelink unicast transmission, and accordingly, step 41 includes:

acquiring a shared cell unique identifier RNTI (radio network temporary identifier) distributed by network side equipment for two terminals of Sidelink unicast transmission; the shared RNTI may be referred to as a paired-RNTI or SL-V-RNTI.

Further, the determining, according to the shared RNTI, the Sidelink unicast transmission resource allocated by the network side device includes:

monitoring a second scheduling command scrambled by a shared RNTI, wherein the second scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment; the second scheduling command may be a PDCCH (Physical Downlink Control Channel) command.

In short, the network side device allocates the Sidelink unicast transmission resource using the RNTI shared by the two terminals for Sidelink unicast transmission.

It should be noted that, when the network side device allocates the Sidelink unicast transmission resource, the network side device may indicate the transmission direction of the Sidelink unicast transmission resource in the corresponding second scheduling command, and specifically, the second scheduling command further carries direction indication information for indicating the transmission direction of the allocated Sidelink unicast transmission resource; that is, the network side device indicates which terminal is the transmitting terminal and which terminal is the receiving terminal among the two terminals in the Sidelink unicast transmission at a specific time. Or, when the network side device allocates the shared RNTI (for example, using RRC signaling) to the two terminals, the RRC signaling carries direction indication information for indicating the transmission direction of the allocated Sidelink unicast transmission resource.

Or, two terminals in the Sidelink unicast transmission agree in advance on the transmission direction of the distributed Sidelink unicast transmission resource; that is, the network side device allocates the Sidelink unicast transmission resource to the paired terminal, and the paired terminal determines which terminal is the sending terminal and which terminal is the receiving terminal in the Sidelink unicast transmission resource; for example, when the paired terminals establish the sildelink connection, the transmission direction or the sequence of the transmission directions is agreed in advance, such as always being sent by one terminal (for example, the sensor sends data to the data collection end), or one terminal sends first and the other terminal sends later (for example, the request and response information of the head and the group vehicles in the fleet).

It should be further noted that the direction indication information may specifically be a sending identifier, which occupies 1 bit, for example, "0" represents that terminal 1 is a sending terminal, and "1" represents that terminal 2 is a sending terminal; alternatively, "1" indicates that terminal 1 is a transmitting terminal, and "0" indicates that terminal 2 is a transmitting terminal.

Example two

A network side device: allocating a shared RNTI for a paired terminal (two terminals for Sidelink unicast transmission), and configuring direction indication information carried in a subsequent scheduling command, for example, setting a transmission indication of a terminal 1 to be "0", and setting a transmission indication of a terminal 2 to be "1"; and dynamically allocating the PDCCH scheduling command scrambled by the shared RNTI, and indicating the transmission direction of the Sidelink unicast transmission resource in the PDCCH scheduling command, wherein if the PDCCH scheduling command carries a transmission identifier '0' to indicate that the terminal 1 transmits, and '1' indicates that the terminal 2 transmits.

A transmitting terminal and a receiving terminal: receiving a configuration command of network side equipment, and determining a shared RNTI (radio network temporary identifier) for direct link scheduling; receiving a PDCCH scheduling command scrambled by shared RNTI (radio network temporary identifier) of network side equipment, determining which terminal the Sidelink unicast transmission resource is transmitted by according to a transmission identifier in the PDCCH scheduling command, and transmitting and/or receiving data according to the PDCCH scheduling command.

Example three

A network side device: shared RNTIs are distributed for paired terminals (two terminals for Sidelink unicast transmission), PDCCH scheduling commands scrambled by the shared RNTIs are used for dynamic distribution, and Sidelink unicast transmission resources are distributed.

A transmitting terminal and a receiving terminal: the paired terminal decides itself as the terminal to transmit data in the Sidelink unicast transmission resource. The specific method may be to configure the terminals to agree in advance on the transmission direction or the sequence of the transmission directions when establishing the connection, such as always sending by one terminal (for example, the sensor sends data to the data collection end), or sending by one terminal first and then sending by another terminal (for example, request and response information of the head and the group vehicles in the fleet).

As a preferred embodiment of the resource scheduling method 1, the terminals are a sending terminal and a receiving terminal for Sidelink unicast transmission, and step 41 includes:

receiving a first configuration resource scheduling signaling sent by a network side device, wherein the first configuration resource scheduling signaling carries information of pre-configuration resources allocated to a terminal by the network side device; the information of the pre-configured resource includes: the period of the pre-configured resource and the time frequency resource position and the transmission format of the Sidelink unicast transmission resource pre-configured by the network side equipment are pre-configured; the first configured resource scheduling signaling may be RRC signaling.

And the network side equipment respectively informs the pre-configured resource information to the sending terminal and the receiving terminal.

Further, in the case that the terminal is a receiving terminal in the Sidelink unicast transmission, step 41 further includes:

receiving information of pre-configured resources distributed to the terminal by the network side equipment, which is sent by a sending terminal through the Sidelink on the Sidelink unicast transmission resources distributed to the network side equipment; determining the Sidelink unicast transmission resource preconfigured by the network side equipment according to the information of the preconfigured resource; wherein the information of the pre-configured resource comprises: the period of the pre-configured resource and the time frequency resource position and the transmission format of the Sidelink unicast transmission resource pre-configured by the network side equipment.

The network side equipment informs the information of the pre-configured resource to the sending terminal, and the sending terminal informs the corresponding information of the pre-configured resource to the receiving terminal.

Preferably, the pre-configured resource in the resource scheduling mode 1 is a periodic resource.

Example four

The network side equipment: allocating periodic resources on the Sidelink (i.e. pre-configured resources) to the sending terminal by using RRC signaling, and informing the receiving terminal of the information of the periodic resources allocated to the sending terminal (e.g. by using RRC signaling);

A sending terminal: and receiving a first configuration resource scheduling signaling sent by the network side equipment, and carrying out data transmission on the Sidelink according to the first configuration resource scheduling signaling.

The receiving terminal: and receiving a first configuration resource scheduling signaling sent by the network side equipment, and receiving data on the Sidelink according to the first configuration resource scheduling signaling.

Example five

The network side equipment: the sending terminal is allocated periodic resources (i.e., pre-configured resources) on the Sidelink using RRC signaling.

A sending terminal: receiving a first configuration resource scheduling signaling sent by network side equipment, and sending information of pre-configuration resources carried by the first configuration resource scheduling signaling to a receiving terminal on a direct link according to the first configuration resource scheduling signaling, for example, using an MAC PDU to carry the information of the pre-configuration resources; and then, data transmission is carried out on the Sidelink according to the first configuration resource scheduling signaling.

The receiving terminal: and receiving the information of the pre-configured resources sent by the sending terminal on the direct link, and receiving data on the Sidelink according to the information of the pre-configured resources.

It should be noted that the difference between the fourth example and the fifth example is the way in which the receiving terminal obtains the information of the preconfigured resource, in the fourth example, the information of the preconfigured resource is notified to the receiving terminal by the network side device, and in the fifth example, the information of the preconfigured resource is notified to the receiving terminal by the sending terminal.

As a preferred embodiment of configuring the resource scheduling manner 2, the terminals are a sending terminal and a receiving terminal of the Sidelink unicast transmission, and step 41 includes:

receiving a second configured resource scheduling signaling sent by a network side device, wherein the second configured resource scheduling signaling carries a period of a preconfigured resource allocated to a terminal by the network side device and an RNTI (radio network temporary identifier) special for the preconfigured resource scheduling; wherein, the RNTI special for the pre-configuration resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configuration resource transmission; the second configured resource scheduling signaling may be RRC signaling; the pre-configured resource scheduling dedicated RNTI may be referred to as a CS-V-RNTI.

And the network side equipment respectively informs the period of the pre-configured resource and the special RNTI for scheduling the pre-configured resource to the sending terminal and the receiving terminal.

The network side equipment respectively informs the period of the pre-configured resource and the special RNTI of the pre-configured resource scheduling to the sending terminal, and the sending terminal informs the corresponding period of the pre-configured resource and the special RNTI of the pre-configured resource scheduling to the receiving terminal.

Preferably, the pre-configured resource in the resource scheduling mode 2 is a periodic resource.

Further, in the above embodiment of the present invention, the method further includes:

Further, in case that two terminals of the Sidelink unicast transmission are configured with the same pre-configured resource scheduling dedicated RNTI, the method further comprises:

and determining the transmission direction of the preconfigured Sidelink unicast transmission resource according to the direction indication information carried by the second configured resource scheduling signaling, that is, indicating which terminal of two terminals of Sidelink unicast transmission is a sending terminal and which terminal is a receiving terminal at a specific time by the network side equipment.

Or, according to the pre-agreement of two terminals in the Sidelink unicast transmission, determining the transmission direction of the preconfigured Sidelink unicast transmission resource, that is, the network side device allocates the Sidelink unicast transmission resource to the paired terminals, and the paired terminals determine which terminal is the sending terminal and which terminal is the receiving terminal in the Sidelink unicast transmission resource; for example, when the paired terminals establish the Sidelink connection, the transmission directions or the sequence of the transmission directions are agreed in advance, such as always being sent by one terminal (for example, the sensor sends data to the data collecting end), or one terminal sends first and the other terminal sends later (for example, the request and response information of the head and the group vehicles in the fleet).

Example six

A network side device: the system comprises a period and a CS-V-RNTI, wherein the period and the CS-V-RNTI are used for informing a sending terminal of pre-configuration resources through RRC signaling; informing the receiving terminal network side equipment of the period of the pre-configured resource configured for the sending terminal and the CS-V-RNTI (such as being informed through RRC signaling); activating the transmission of the pre-configured resources by using a PDCCH command scrambled by a CS-V-RNTI, and carrying the time-frequency resource position and the transmission format of the pre-configured Sidelink unicast transmission resources in the PDCCH command; and deactivating the transmission of the preconfigured resources by using the PDCCH command scrambled by the CS-V-RNTI, wherein the Sidelink unicast transmission resources and transmission formats allocated in the activated PDCCH command are invalid, and the terminal stops transmitting on the preconfigured Sidelink unicast transmission resources.

A sending terminal: receiving a period of pre-configured resources and CS-V-RNTI sent by network side equipment; monitoring a PDCCH command scrambled by CS-V-RNTI, activating preconfigured Sidelink unicast transmission resources according to the PDCCH command for activation, and carrying out data transmission on the activated resources; and continuously monitoring the PDCCH order scrambled by the CS-V-RNTI, and stopping data transmission on the pre-configured resource if the deactivated PDCCH order is received.

A receiving terminal: receiving a period of pre-configured resources aiming at a sending terminal and CS-V-RNTI sent by a base station; monitoring a PDCCH command scrambled by the CS-V-RNTI, and performing data reception on a pre-configured resource according to the PDCCH command for activation; and continuously monitoring the PDCCH order scrambled by the CS-V-RNTI, and stopping data reception on the pre-configured resource if the deactivated PDCCH order is received.

Example seven

A network side device: the system comprises a period and a CS-V-RNTI, wherein the period and the CS-V-RNTI are used for informing a sending terminal of pre-configuration resources through RRC signaling; activating the transmission of the pre-configured resources by using a PDCCH command scrambled by a CS-V-RNTI, and carrying the time-frequency resource position and the transmission format of the pre-configured Sidelink unicast transmission resources in the PDCCH command; and deactivating the transmission of the preconfigured resources by using the PDCCH command scrambled by the CS-V-RNTI, wherein the Sidelink unicast transmission resources and transmission formats allocated in the activated PDCCH command are invalid, and the terminal stops transmitting on the preconfigured Sidelink unicast transmission resources.

A sending terminal: receiving a period of pre-configuration resources and CS-V-RNTI sent by network side equipment, and sending the period of the pre-configuration resources and the CS-V-RNTI configured for a sending terminal to a receiving terminal (which can be carried in an MAC PDU) on a direct link; monitoring a PDCCH command scrambled by CS-V-RNTI, activating preconfigured Sidelink unicast transmission resources according to the PDCCH command for activation, and carrying out data transmission on the activated resources; and continuously monitoring the PDCCH order scrambled by the CS-V-RNTI, and stopping data transmission on the pre-configured resource if the deactivated PDCCH order is received.

A receiving terminal: receiving a period of pre-configuration resources configured for a sending terminal and sent by the sending terminal on a direct link and a CS-V-RNTI; monitoring a PDCCH command scrambled by the CS-V-RNTI, and performing data reception on a pre-configured resource according to the PDCCH command for activation; and continuously monitoring the PDCCH order scrambled by the CS-V-RNTI, and stopping data reception on the pre-configured resource if the deactivated PDCCH order is received.

It should be noted that the difference between the sixth example and the seventh example is that the receiving terminal obtains the period of the preconfigured resource and the CS-V-RNTI, in the sixth example, the period of the preconfigured resource and the CS-V-RNTI are notified to the receiving terminal by the network side device, and in the seventh example, the period of the preconfigured resource and the CS-V-RNTI are notified to the receiving terminal by the sending terminal.

Example eight

A network side device: the period and CS-V-RNTI are used for informing the two terminals of pre-configuration resources through RRC signaling; and the network side equipment allocates the same CS-V-RNTI for the two terminals. Meanwhile, the configuration carries direction indication information in the subsequent physical layer scheduling command, for example, the transmission indication of terminal 1 is set to "0", and the transmission indication of terminal 2 is set to "1". Activating the transmission of the pre-configured resources by using a PDCCH command scrambled by a CS-V-RNTI, and carrying the time-frequency resource position and the transmission format of the pre-configured Sidelink unicast transmission resources in the PDCCH command; the transmission direction of the Sidelink unicast transmission resource is carried in the second configured resource scheduling signaling, for example, the transmission identifier "0" carried in the second configured resource scheduling signaling indicates that the terminal 1 transmits, and "1" indicates that the terminal 2 transmits; deactivating the pre-configured resource transmission with a PDCCH order scrambled with the CS-V-RNTI.

A transmitting terminal and a receiving terminal: receiving a period of pre-configured resources configured by network side equipment through RRC signaling and CS-V-RNTI; receiving a PDCCH (physical Downlink control channel) scheduling command which is scrambled by the CS-V-RNTI and used for activating the pre-configured resources by the network side equipment, wherein the PDCCH scheduling command indicates a specific resource position and a transmission format and indicates which terminal sends data in the activation period, and the terminal sends and receives the data according to the indication of the PDCCH scheduling command; and continuously monitoring a PDCCH scheduling command which is scrambled by the CS-V-RNTI and used for deactivating the configuration resources and is sent by the network side equipment, and if the PDCCH command for deactivating the configuration resources is received, deactivating the configuration resources and informing the data to stop sending and receiving.

In summary, in the embodiments of the present invention, two terminals of the Sidelink unicast transmission may both determine the Sidelink unicast transmission resource allocated by the network side device, and then the sending terminal performs data sending on the determined Sidelink unicast transmission resource, and the receiving terminal performs data receiving on the determined Sidelink unicast transmission resource, that is, the receiving terminal may accurately obtain the data transmission resource (that is, the Sidelink unicast transmission resource), so as to perform data receiving at an accurate resource location, and do not need to search in the whole resource pool; therefore, the power consumption of the receiving terminal is reduced, the data transmission delay of the receiving terminal is reduced, the receiving terminal can quickly acquire the feedback resource of the direct link, and the feedback delay is reduced.

As shown in fig. 3, an embodiment of the present invention further provides a unicast resource configuration method for a direct link Sidelink, which is applied to a network side device, and includes:

step 51, distributing Sidelink unicast transmission resources;

step 52, sending the resource allocation information of the allocated Sidelink unicast transmission resource to the sending terminal in Sidelink unicast transmission, and sending the resource allocation information of the allocated Sidelink unicast transmission resource to the receiving terminal in Sidelink unicast transmission by the sending terminal; or sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals of Sidelink unicast transmission.

In the above embodiments of the present invention, the manner for determining the Sidelink unicast transmission resource by the sending terminal and the receiving terminal of the Sidelink unicast transmission includes at least the following two ways:

Firstly, dynamic scheduling, namely allocating Sidelink unicast transmission resources through dynamic signaling, wherein in this way, a sending terminal receives the dynamic signaling aiming at the sending terminal, and can perform data transmission on the dynamically scheduled resources;

secondly, configuring a resource scheduling mode 1, namely sending a period of the pre-configured resource and a time-frequency resource position and a transmission format of the pre-configured Sidelink unicast transmission resource through RRC signaling, wherein in the mode, after receiving the RRC signaling sent by the resource scheduling mode 1, a terminal can perform data transmission on the allocated pre-configured resource;

thirdly, configuring a resource scheduling mode 2, namely sending a period of pre-configured resources and an RNTI (radio network temporary identifier) special for pre-configured resource scheduling through RRC (radio resource control) signaling; wherein, the RNTI special for the pre-configuration resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configuration resource transmission; then, the transmission of the pre-configured resource is activated or deactivated through a physical layer scheduling command scrambled by the RNTI special for the pre-configured resource scheduling; in this way, after receiving the RRC signaling sent by the configured resource scheduling mode 2 and the physical layer scheduling command scrambled by the RNTI dedicated to the preconfigured resource scheduling and used for activating the transmission of the preconfigured resource, the terminal may perform data transmission on the activated preconfigured resource.

As a preferred embodiment of the dynamic scheduling, the method further comprises:

an intra-cell unique identifier RNTI (radio network temporary identifier) distributed for a sending terminal; the RNTI is an identifier of the sending terminal for direct link scheduling. The RNTI of the transmitting terminal may be referred to as SL-V-RNTI or Sidelink V2X RNTI.

Accordingly, step 52 includes:

and sending a first scheduling command scrambled by the RNTI of the sending terminal, wherein the first scheduling command carries the resource allocation information of the allocated Sidelink unicast transmission resource. The first scheduling command may be a PDCCH (Physical Downlink Control Channel) command.

In short, the network side device allocates the Sidelink unicast transmission resource using the RNTI of the transmission terminal.

As another preferred embodiment of the dynamic scheduling, the method further comprises:

allocating shared cell unique identifiers RNTI for two terminals of Sidelink unicast transmission; the shared RNTI may be referred to as a paired-RNTI or SL-V-RNTI.

Correspondingly, step 52, sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals in the Sidelink unicast transmission, includes:

and sending a second scheduling command scrambled by the shared RNTI, wherein the second scheduling command carries the resource allocation information of the allocated Sidelink unicast transmission resource. The second scheduling command may be a PDCCH (Physical Downlink Control Channel) command.

It should be noted that, when allocating the Sidelink unicast transmission resource, the network side device may indicate, in the corresponding second scheduling command, a transmission direction of the Sidelink unicast transmission resource, and specifically, the second scheduling command further carries direction indication information for indicating the transmission direction of the allocated Sidelink unicast transmission resource; that is, the network side device indicates which terminal is the transmitting terminal and which terminal is the receiving terminal among the two terminals in the Sidelink unicast transmission at a specific time. Or, when the network side device allocates the shared RNTI (for example, using RRC signaling) to the two terminals, the RRC signaling carries direction indication information for indicating the transmission direction of the allocated Sidelink unicast transmission resource.

Or, two terminals in the Sidelink unicast transmission agree in advance on the transmission direction of the distributed Sidelink unicast transmission resource; that is, the network side device allocates the Sidelink unicast transmission resource to the paired terminal, and the paired terminal determines which terminal is the sending terminal and which terminal is the receiving terminal in the Sidelink unicast transmission resource; for example, when the paired terminals establish the Sidelink connection, the transmission directions or the sequence of the transmission directions are agreed in advance, such as always being sent by one terminal (for example, the sensor sends data to the data collecting end), or one terminal sends first and the other terminal sends later (for example, the request and response information of the head and the group vehicles in the fleet).

As a preferred embodiment of the resource scheduling mode 1, the terminals are a sending terminal and a receiving terminal for the Sidelink unicast transmission; or, the terminal is a sending terminal, and step 52 includes:

sending a first configured resource scheduling signaling, wherein the first configured resource scheduling signaling carries information of pre-configured resources allocated to a terminal by a network side device; the information of the pre-configured resource includes: the period of the pre-configured resource and the time frequency resource position and the transmission format of the Sidelink unicast transmission resource pre-configured by the network side equipment. The first configured resource scheduling signaling may be RRC signaling.

As a preferred embodiment of the resource scheduling method 2, the terminals are a sending terminal and a receiving terminal of the Sidelink unicast transmission, or the terminals are sending terminals, and step 52 includes:

sending a second configured resource scheduling signaling, wherein the second configured resource scheduling signaling carries a period of a pre-configured resource allocated to the terminal by the network side equipment and an RNTI special for the pre-configured resource scheduling; wherein the RNTI special for the pre-configured resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configured resource transmission; the second configured resource scheduling signaling may be RRC signaling; the pre-configured resource scheduling dedicated RNTI may be referred to as CS-V-RNTI.

Further, in case that two terminals for the Sidelink unicast transmission are configured with the same pre-configured resource scheduling dedicated RNTI,

the second configured resource scheduling signaling also carries direction indication information for indicating the transmission direction of the preconfigured Sidelink unicast transmission resource, that is, the network side device indicates which terminal of the two terminals of the Sidelink unicast transmission is the sending terminal and which terminal is the receiving terminal at a specific time.

As shown in fig. 4, an embodiment of the present invention further provides a terminal, including: a transceiver 620, a memory 610, a processor 600 and a computer program stored on the memory 610 and executable on the processor 600; the processor 600 is used for reading the program in the memory and executing the following processes: determining the Sidelink unicast transmission resource distributed by the network side equipment;

the transceiver 620 is configured to: and transmitting and/or receiving the Sidelink data on the determined Sidelink unicast transmission resource.

Optionally, in the embodiment of the present invention, the terminals are a sending terminal and a receiving terminal for Sidelink unicast transmission, and the transceiver 620 is further configured to: acquiring an in-cell unique identifier RNTI (radio network temporary identifier) distributed by network side equipment for a transmitting terminal;

the processor 600 is further configured to: and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the RNTI of the sending terminal.

Optionally, in the foregoing embodiment of the present invention, the transceiver 620 is further configured to: monitoring a first scheduling command scrambled by an RNTI of a transmitting terminal; the first scheduling command carries resource allocation information of the Silelink unicast transmission resource allocated by the network side equipment;

The processor 600 is further configured to: and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information.

Optionally, in the embodiment of the present invention, the terminals are a sending terminal and a receiving terminal for Sidelink unicast transmission, and the transceiver 620 is further configured to: acquiring shared cell unique identifiers RNTI (radio network temporary identifier) distributed by network side equipment for two terminals of Sidelink unicast transmission;

the processor 600 is further configured to:

Optionally, in the foregoing embodiment of the present invention, the transceiver 620 is further configured to: monitoring a second scheduling command scrambled by a shared RNTI, wherein the second scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment;

the processor 600 is further configured to:

Optionally, in the embodiment of the present invention, the second scheduling command further carries direction indication information used for indicating a transmission direction of the allocated Sidelink unicast transmission resource;

Optionally, in the foregoing embodiment of the present invention, the transceiver 620 is further configured to:

the processor 600 is further configured to:

Optionally, in the embodiment of the present invention, when the terminal is a receiving terminal in the Sidelink unicast transmission, the transceiver 620 is further configured to:

receiving information of pre-configured resources distributed to the terminal by the network side equipment, which is sent by a sending terminal through the Sidelink on the Sidelink unicast transmission resources distributed to the network side equipment;

the processor 600 is further configured to:

Optionally, in the embodiment of the present invention, in a case that two terminals in the Sidelink unicast transmission are configured with the same RNTI dedicated to the preconfigured resource scheduling, the processor 600 further includes:

It should be noted that the terminal provided in the embodiment of the present invention is a terminal capable of executing the unicast transmission method of the direct link Sidelink, and all embodiments of the unicast transmission method of the direct link Sidelink are applicable to the terminal and can achieve the same or similar beneficial effects.

As shown in fig. 5, an embodiment of the present invention further provides a unicast transmission apparatus on a direct link Sidelink, which is applied to a terminal, and includes:

a resource determining module 71, configured to determine a Sidelink unicast transmission resource allocated by a network side device;

a transmission module 72, configured to send and/or receive the Sidelink data on the determined Sidelink unicast transmission resource.

Optionally, in the foregoing embodiment of the present invention, the resource determining module 71 includes:

the first acquisition submodule is used for acquiring an intra-cell unique identifier RNTI (radio network temporary identifier) distributed by the network side equipment for the sending terminal;

and the first resource determining submodule is used for determining the Sidelink unicast transmission resource distributed by the network side equipment according to the RNTI of the sending terminal.

Optionally, in the above embodiment of the present invention, the first resource determining sub-module includes:

a first monitoring unit, configured to monitor a first scheduling command scrambled by an RNTI of a transmitting terminal; the first scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment;

a first determining unit, configured to determine, according to the resource allocation information, a Sidelink unicast transmission resource allocated by the network side device.

the second obtaining submodule is used for obtaining a shared cell unique identifier RNTI (radio network temporary identifier) distributed by the network side equipment for two terminals for Sidelink unicast transmission;

and the second resource determining submodule is used for determining the Sidelink unicast transmission resource distributed by the network side equipment according to the shared RNTI.

Optionally, in the foregoing embodiment of the present invention, the second resource determining sub-module includes:

a second monitoring unit, configured to monitor a second scheduling command scrambled by the shared RNTI, where the second scheduling command carries resource allocation information of the Sidelink unicast transmission resource allocated by the network side device;

a second determining unit, configured to determine, according to the resource allocation information, a Sidelink unicast transmission resource allocated by the network side device.

Optionally, in the foregoing embodiment of the present invention, the second scheduling command further carries direction indication information for indicating a transmission direction of the allocated Sidelink unicast transmission resource;

the first signaling receiving submodule is used for receiving a first configuration resource scheduling signaling sent by network side equipment, wherein the first configuration resource scheduling signaling carries information of pre-configuration resources distributed to a terminal by the network side equipment; the information of the pre-configured resource includes: the period of the pre-configured resource and the time-frequency resource position and the transmission format of the Sidelink unicast transmission resource pre-configured by the network side equipment;

and a third resource determining submodule, configured to determine, according to the first configured resource scheduling signaling, a Sidelink unicast transmission resource preconfigured by the network side device.

Optionally, in the foregoing embodiment of the present invention, when the terminal is a receiving terminal in the Sidelink unicast transmission, the resource determining module further includes:

the information receiving submodule is used for receiving the information of the pre-configured resources distributed to the terminal by the network side equipment, which is sent by the sending terminal through the Sidelink unicast transmission resources distributed to the network side equipment; and determining the Sildelink unicast transmission resource preconfigured by the network side equipment according to the information of the preconfigured resource.

a second signaling receiving sub-module, configured to receive a second configured resource scheduling signaling sent by a network side device, where the second configured resource scheduling signaling carries a pre-configured resource period allocated by the network side device for a terminal and a RNTI special for pre-configured resource scheduling; wherein, the RNTI special for the pre-configuration resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configuration resource transmission;

a first signaling monitoring sub-module, configured to monitor a first physical layer scheduling command scrambled by the RNTI and used for activating transmission of the preconfigured resource; the first physical layer scheduling command carries a time-frequency resource position and a transmission format of a Sidelink unicast transmission resource pre-configured by network side equipment;

and the fourth resource determining submodule is used for activating the transmission of the preconfigured Sidelink unicast transmission resource according to the first physical layer scheduling command.

Optionally, in the embodiment of the present invention, when the terminal is a receiving terminal in the Sidelink unicast transmission, the resource determining module further includes:

A second information receiving submodule, configured to receive a period of a preconfigured resource allocated to the terminal by the network-side device and an RNTI dedicated for scheduling the preconfigured resource, where the period is sent by the sending terminal on the Sidelink unicast transmission resource allocated to the network-side device and the network-side device is used for the terminal; the special RNTI for the pre-configured resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configured resource transmission;

a second signaling monitoring sub-module, configured to monitor a first physical layer scheduling command scrambled by the RNTI and used for activating transmission of the preconfigured resource; the first physical layer scheduling command carries a time-frequency resource position and a transmission format of a Sidelink unicast transmission resource pre-configured by network side equipment;

and the activation submodule is used for activating the transmission of the pre-configured Sidelink unicast transmission resource according to the first physical layer scheduling command.

Optionally, in the above embodiment of the present invention, the apparatus further includes:

a signaling monitoring module, configured to monitor a second physical layer scheduling command scrambled by the RNTI dedicated for scheduling of the preconfigured resource and used for deactivating transmission of the preconfigured resource;

and the deactivation module is used for controlling the distribution failure of the preconfigured Sidelink unicast transmission resource according to the second physical layer scheduling command.

Optionally, in the embodiment of the present invention, when two terminals in the Sidelink unicast transmission are configured with the same RNTI dedicated for the preconfigured resource scheduling, the method further includes:

It should be noted that the unicast transmission apparatus for the direct link Sidelink provided in the embodiment of the present invention is an apparatus capable of executing the unicast transmission method for the direct link Sidelink, and all embodiments of the unicast transmission method for the direct link Sidelink are applicable to the apparatus and can achieve the same or similar beneficial effects.

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 a processor, the computer program implements the processes in the foregoing unicast transmission method on a direct link Sidelink, and can achieve the same technical effects, and in order to avoid repetition, the descriptions of the processes are omitted here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in fig. 6, an embodiment of the present invention further provides a network device, including: a transceiver 820, a memory 810, a processor 800 and a computer program stored on the memory 810 and executable on the processor 800; the processor 800 is used for reading the program in the memory and executing the following processes: allocating Sidelink unicast transmission resources;

The transceiver 820 is configured to:

Preferably, in the above embodiment of the present invention, the processor 800 is further configured to:

the transceiver 820 is further configured to:

Preferably, in the foregoing embodiment of the present invention, the second scheduling command further carries direction indication information for indicating a transmission direction of the allocated Sidelink unicast transmission resource;

Preferably, in the foregoing embodiment of the present invention, the transceiver 820 is further configured to:

Preferably, in the above embodiment of the present invention, in case that the same preconfigured resource scheduling dedicated RNTI is configured for two terminals for the Sidelink unicast transmission,

It should be noted that the network side device provided in the embodiment of the present invention is a network side device capable of executing the unicast resource configuration method for the direct link Sidelink, and all embodiments of the unicast resource configuration method for the direct link Sidelink are applicable to the network side device and can achieve the same or similar beneficial effects.

As shown in fig. 7, an embodiment of the present invention further provides a unicast resource configuration apparatus for a direct link Sidelink, which is applied to a network side device, and includes:

a resource allocation module 91, configured to allocate a Sidelink unicast transmission resource;

a sending module 92, configured to send resource allocation information of the allocated Sidelink unicast transmission resource to a sending terminal in the Sidelink unicast transmission, where the sending terminal sends the resource allocation information of the allocated Sidelink unicast transmission resource to a receiving terminal in the Sidelink unicast transmission; or sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals of Sidelink unicast transmission.

the first identifier allocation module is used for allocating an in-cell unique identifier RNTI for the sending terminal;

The sending module comprises:

and the first sending submodule is used for sending a first scheduling command scrambled by the RNTI of the sending terminal, and the first scheduling command carries the resource allocation information of the allocated Sidelink unicast transmission resource.

a second identifier sending module, configured to allocate a shared cell unique identifier RNTI for two terminals in the Sidelink unicast transmission;

the sending module comprises:

and a second sending submodule, configured to send a second scheduling command scrambled by the shared RNTI, where the second scheduling command carries resource allocation information of the allocated Sidelink unicast transmission resource.

Optionally, in the above embodiment of the present invention, the sending module includes:

a third sending submodule, configured to send a first configured resource scheduling signaling, where the first configured resource scheduling signaling carries information of a preconfigured resource allocated to the terminal by the network side device; the information of the pre-configured resource includes: the period of the pre-configured resource and the time frequency resource position and the transmission format of the Sidelink unicast transmission resource pre-configured by the network side equipment.

a fourth sending submodule, configured to send a second configured resource scheduling signaling, where the second configured resource scheduling signaling carries a period of a preconfigured resource allocated to the terminal by the network side device and an RNTI dedicated for the preconfigured resource scheduling; wherein, the RNTI special for the pre-configuration resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configuration resource transmission;

a fifth sending submodule, configured to send a first physical layer scheduling command scrambled by the RNTI and used for activating transmission of the preconfigured resource, where the first physical layer scheduling command carries a time-frequency resource position and a transmission format of a Sidelink unicast transmission resource preconfigured by the network side device.

a sixth sending submodule, configured to send a second physical layer scheduling command scrambled by the RNTI dedicated for scheduling of the preconfigured resource and used for deactivating transmission of the preconfigured resource, where the second physical layer scheduling command is used to indicate that allocation of the scellink unicast transmission resource preconfigured in the first physical layer scheduling command is invalid.

Optionally, in the above embodiment of the present invention, in case that the same preconfigured resource scheduling dedicated RNTI is configured for two terminals for the Sidelink unicast transmission,

It should be noted that the unicast resource configuration apparatus for the direct link Sidelink provided in the embodiment of the present invention is an apparatus capable of executing the unicast resource configuration method for the direct link Sidelink, and all embodiments of the unicast resource configuration method for the direct link Sidelink are applicable to the apparatus and can achieve the same or similar beneficial effects.

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 a processor, the computer program implements each process of the foregoing unicast resource configuration method for a direct link Sidelink, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. 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 identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art 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 methods according to the embodiments of the present invention.

While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the invention as set forth in the appended claims.

Claims

1. A unicast transmission method on a direct link Sidelink is applied to a terminal, and is characterized by comprising the following steps:

determining the Sidelink unicast transmission resource distributed by the network side equipment;

performing Sidelink data transmission and/or reception on the determined Sidelink unicast transmission resource;

according to the RNTI of the sending terminal, Sidelink unicast transmission resources distributed by the network side equipment are determined;

or, acquiring a shared cell unique identifier RNTI (radio network temporary identifier) distributed by the network side equipment for two terminals of Sidelink unicast transmission; according to the shared RNTI, Sidelink unicast transmission resources distributed by the network side equipment are determined;

determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information;

or, the determining, according to the shared RNTI, the Sidelink unicast transmission resource allocated by the network side device includes:

2. The method according to claim 1, wherein the second scheduling command further carries direction indication information for indicating a transmission direction of the allocated Sidelink unicast transmission resource;

3. The method of claim 1, wherein the determining the Sidelink unicast transmission resource allocated by the network side device comprises:

4. The method according to claim 3, wherein when the terminal is a receiving terminal in the Sidelink unicast transmission, the determining Sidelink unicast transmission resource allocated by the network side device further comprises:

5. The method of claim 1, wherein the determining the Sidelink unicast transmission resource allocated by the network side device comprises:

6. The method according to claim 5, wherein in a case that the terminal is a receiving terminal in a Sidelink unicast transmission, the determining a Sidelink unicast transmission resource allocated by a network side device further comprises:

7. The method of claim 5 or 6, further comprising:

8. The method according to claim 5 or 6, wherein in case that two terminals of a Sidelink unicast transmission are configured with the same pre-configured resource scheduling dedicated RNTI, the method further comprises:

9. A unicast resource configuration method of a direct link Sidelink is applied to network side equipment, and is characterized by comprising the following steps:

allocating Sidelink unicast transmission resources;

sending the resource allocation information of the allocated Sidelink unicast transmission resource to a sending terminal in Sidelink unicast transmission, and sending the resource allocation information of the allocated Sidelink unicast transmission resource to a receiving terminal in the Sidelink unicast transmission by the sending terminal; or sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals of Sidelink unicast transmission;

wherein the method further comprises:

Sending a first scheduling command scrambled by an RNTI (radio network temporary identifier) of a sending terminal, wherein the first scheduling command carries resource allocation information of allocated Sidelink unicast transmission resources;

alternatively, the method further comprises:

10. The method according to claim 9, wherein the second scheduling command further carries direction indication information for indicating a transmission direction of the allocated Sidelink unicast transmission resource;

11. The method of claim 9, wherein sending resource allocation information for the allocated Sidelink unicast transmission resources to a sending terminal in Sidelink unicast transmission, or sending resource allocation information for the allocated Sidelink unicast transmission resources to two terminals in Sidelink unicast transmission, comprises:

12. The method of claim 9, wherein sending resource allocation information for the allocated Sidelink unicast transmission resources to a sending terminal in Sidelink unicast transmission, or sending resource allocation information for the allocated Sidelink unicast transmission resources to two terminals in Sidelink unicast transmission, comprises:

13. The method of claim 12, further comprising:

14. The method of claim 12, wherein in case two terminals for a Sidelink unicast transmission are configured with the same pre-configured resource scheduling dedicated RNTI,

15. A terminal, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,

the processor is used for reading the program in the memory and executing the following processes: determining the Sidelink unicast transmission resource distributed by the network side equipment;

the transceiver is configured to: performing Sidelink data transmission and/or reception on the determined Sidelink unicast transmission resource;

the processor is further configured to: according to the RNTI of the sending terminal, Sidelink unicast transmission resources distributed by the network side equipment are determined;

alternatively, the transceiver is further configured to: acquiring a shared cell unique identifier RNTI (radio network temporary identifier) distributed by network side equipment for two terminals of Sidelink unicast transmission; the processor is further configured to: according to the shared RNTI, Sidelink unicast transmission resources allocated by the network side equipment are determined;

wherein the transceiver is further configured to: monitoring a first scheduling command scrambled by an RNTI of a transmitting terminal; the first scheduling command carries resource allocation information of the Silelink unicast transmission resource allocated by the network side equipment; the processor is further configured to: determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information;

alternatively, the transceiver is further configured to: monitoring a second scheduling command scrambled by a shared RNTI, wherein the second scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment; the processor is further configured to: and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information.

16. The terminal of claim 15, wherein the second scheduling command further carries direction indication information for indicating a transmission direction of the allocated Sidelink unicast transmission resource;

17. The terminal of claim 15, wherein the transceiver is further configured to:

the processor is further configured to:

18. The terminal of claim 17, wherein in a case where the terminal is a receiving terminal in a Sidelink unicast transmission, the transceiver is further configured to:

The processor is further configured to:

19. The terminal of claim 15, wherein the transceiver is further configured to:

the processor is further configured to:

20. The terminal of claim 19, wherein in a case where the terminal is a receiving terminal in a Sidelink unicast transmission, the transceiver is further configured to:

the processor is further configured to:

21. The terminal according to claim 19 or 20, wherein the transceiver is further configured to:

the processor is further configured to:

22. The terminal of claim 19 or 20, wherein in case that two terminals of a Sidelink unicast transmission are configured with the same RNTI dedicated to a pre-configured resource schedule, the processor further comprises:

23. A unicast transmission apparatus on a direct link Sidelink, applied to a terminal, comprising:

a transmission module, configured to send and/or receive the Sidelink data on the determined Sidelink unicast transmission resource;

wherein the resource determination module comprises:

a first resource determining submodule, configured to determine, according to the RNTI of the sending terminal, a Sidelink unicast transmission resource allocated by the network side device;

Or,

the resource determination module comprises:

a second resource determining submodule, configured to determine, according to the shared RNTI, a Sidelink unicast transmission resource allocated by the network side device;

wherein the first resource determination submodule is further configured to: monitoring a first scheduling command scrambled by an RNTI (radio network temporary identifier) of a transmitting terminal; the first scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment; determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information;

or, the second resource determination submodule is further configured to: monitoring a second scheduling command scrambled by a shared RNTI, wherein the second scheduling command carries resource allocation information of Sidelink unicast transmission resources allocated by network side equipment; and determining the Sidelink unicast transmission resource allocated by the network side equipment according to the resource allocation information.

24. 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 unicast transmission method on a direct link sildelink according to any one of claims 1 to 8.

25. A network-side device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,

the processor is used for reading the program in the memory and executing the following processes: allocating Sidelink unicast transmission resources;

the transceiver is configured to:

wherein the processor is further configured to:

an intra-cell unique identifier RNTI allocated for a sending terminal;

the transceiver is further configured to:

alternatively, the processor is further configured to:

The transceiver is further configured to:

26. The network-side device according to claim 25, wherein the second scheduling command further carries direction indication information for indicating a transmission direction of the allocated Sidelink unicast transmission resource;

27. The network-side device of claim 25, wherein the transceiver is further configured to:

28. The network-side device of claim 25, wherein the transceiver is further configured to:

sending a second configured resource scheduling signaling, wherein the second configured resource scheduling signaling carries a period of a pre-configured resource allocated to the terminal by the network side equipment and an RNTI special for the pre-configured resource scheduling; wherein the RNTI special for the pre-configured resource scheduling is used for scrambling a physical layer scheduling command for activating or deactivating the pre-configured resource transmission;

29. The network-side device of claim 28, wherein the transceiver is further configured to:

30. The network device of claim 28, wherein in case that both terminals of the Sidelink unicast transmission are configured with the same RNTI dedicated for the pre-configured resource scheduling,

31. A unicast resource configuration device of a direct link Sidelink is applied to a network side device, and is characterized by comprising:

a sending module, configured to send resource allocation information of the allocated Sidelink unicast transmission resource to a sending terminal in the Sidelink unicast transmission, where the sending terminal sends the resource allocation information of the allocated Sidelink unicast transmission resource to a receiving terminal in the Sidelink unicast transmission; or sending the resource allocation information of the allocated Sidelink unicast transmission resource to two terminals of Sidelink unicast transmission;

wherein the apparatus further comprises:

the sending module comprises:

a first sending submodule, configured to send a first scheduling command scrambled by an RNTI of a sending terminal, where the first scheduling command carries resource allocation information of the allocated Sidelink unicast transmission resource;

alternatively, the apparatus further comprises:

the sending module comprises:

and a second sending sub-module, configured to send a second scheduling command scrambled by the shared RNTI, where the second scheduling command carries resource allocation information of the allocated Sidelink unicast transmission resource.

32. 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 unicast resource configuration method of the direct link Sidelink of any one of claims 9 to 14.