CN111132371A

CN111132371A - Method for establishing sub-link connection and resource allocation, terminal and network side equipment

Info

Publication number: CN111132371A
Application number: CN201811297560.2A
Authority: CN
Inventors: 梁敬; 纪子超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2020-05-08
Anticipated expiration: 2038-11-01
Also published as: WO2020088585A1; CN111132371B

Abstract

The invention provides a method for establishing a sidelink connection, a method for allocating resources, a terminal and network side equipment, wherein the method for establishing the sidelink connection is applied to a first terminal and comprises the following steps: acquiring resource pool configuration information configured or pre-configured by network side equipment, wherein the resource pool configuration information is used for configuring one or more transmission resource pools for the first terminal; and transmitting the secondary link connection establishment information to the second terminal by using specific resources in the one or more transmission resource pools. By the technical scheme of the invention, the terminal can quickly establish the secondary link connection, and resource collision is avoided.

Description

Method for establishing sub-link connection and resource allocation, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method for establishing a sidelink connection and allocating resources, a terminal, and a network device.

Background

Long Term Evolution (LTE) Sidelink (Sidelink, also called side link or side link) communication based on a broadcast mechanism cannot meet Quality of service (QoS) requirements for supporting advanced internet of vehicles (V2X) services, such as autonomous driving, sensor extension, etc., which require low-latency, highly reliable, large data volume advanced V2X services, and these advanced V2X services will be supported by a new air interface NR Sidelink.

A Long Term Evolution (LTE) system supports sidelink (also called sidelink or side link) for direct data transmission between terminals (User Equipment, UE) without using network side Equipment.

In the prior art, when the UE establishes the sidelink connection, the used resources may collide with resources of other services, so that the UE cannot quickly establish the sidelink connection.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a method for establishing a sidelink connection, a method for allocating resources, a terminal and a network side device, which can enable the terminal to quickly establish the sidelink connection and avoid resource collision.

To solve the above technical problem, embodiments of the present invention provide the following technical solutions:

in a first aspect, an embodiment of the present invention provides a method for establishing a sidelink connection, which is applied to a first terminal, and includes:

acquiring resource pool configuration information configured or pre-configured by network side equipment, wherein the resource pool configuration information is used for configuring one or more transmission resource pools for the first terminal;

and transmitting the secondary link connection establishment information to the second terminal by using specific resources in the one or more transmission resource pools.

In a second aspect, an embodiment of the present invention provides a method for establishing a sidelink connection, which is applied to a second terminal, and includes:

receiving sidelink connection establishment information sent by a first terminal;

and sending a secondary link connection establishment response message to the first terminal, wherein the resource for sending the secondary link connection establishment response message notifies the second terminal to the first terminal, or configures or pre-configures the network side equipment to the second terminal.

In a third aspect, an embodiment of the present invention provides a method for allocating sidelink connection resources, which is applied to a network device, and includes:

sending resource pool configuration information to a terminal, wherein the resource pool configuration information is used for configuring one or more transmission resource pools for the terminal, and the one or more transmission resource pools comprise specific resources used for establishing a secondary link connection.

In a fourth aspect, an embodiment of the present invention provides a first terminal, including:

an obtaining module, configured to obtain resource pool configuration information configured or preconfigured by a network side device, where the resource pool configuration information is used to configure one or more transmission resource pools for the first terminal;

a sending module, configured to send the sidelink connection establishment information to the second terminal using a specific resource in the one or more transmission resource pools.

In a fifth aspect, an embodiment of the present invention provides a second terminal, including:

the receiving module is used for receiving the sidelink connection establishment information sent by the first terminal;

a sending module, configured to send sidelink connection setup response information to the first terminal, where a resource used for sending the sidelink connection setup response information notifies the first terminal to the second terminal, or configures or pre-configures the network-side device to the second terminal.

In a sixth aspect, an embodiment of the present invention provides a network-side device, including:

the configuration module is configured to send resource pool configuration information to a terminal, where the resource pool configuration information is used to configure one or more transmission resource pools for the terminal, and the one or more transmission resource pools include specific resources used for establishing a secondary link connection.

In a seventh aspect, an embodiment of the present invention provides a communication device, including: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the sidelink connection establishment method as described above or implementing the steps in the sidelink connection resource allocation method as described above.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium, having stored thereon a computer program, which when executed by a processor, implements the steps in the sidelink connection establishing method or implements the steps in the sidelink connection resource allocation method as described above.

The embodiment of the invention has the following beneficial effects:

in the above scheme, the network side device pre-configures or configures resource pool configuration information for the first terminal, where the resource pool configuration information is used to configure one or more transmission resource pools for the first terminal, where the one or more transmission resource pools include specific resources used for establishing a secondary link connection, and the first terminal may use the specific resources used for establishing the secondary link connection to establish the secondary link connection with the second terminal, so that resource collision may be avoided, and the secondary link connection between the terminals can be established quickly.

Drawings

Fig. 1 is a flowchart illustrating a sidelink connection establishing method applied to a first terminal according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a sidelink connection establishing method applied to a second terminal according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a sidelink connection resource allocation method applied to a network side device according to an embodiment of the present invention;

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

fig. 5 is a schematic structural diagram of a second terminal according to an embodiment of the present invention;

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

fig. 7 is a schematic diagram of a network device according to an embodiment of the present invention;

fig. 8 is a schematic composition diagram of a terminal according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The UE transmits secondary link Control Information (SCI) through a Physical secondary link Control Channel (PSCCH), and schedules transmission of a Physical secondary link Shared Channel (PSCCH) to transmit data. The transmission is performed in a broadcast manner, and the receiving end does not feed back whether the reception is successful to the transmitting end.

The LTE sidelink design supports two resource allocation modes, namely a scheduling resource allocation (scheduled resource allocation) mode and an autonomous resource selection (autonomous resource selection) mode. The former is controlled by network side equipment and allocates resources for each UE, and the latter is selected by the UE autonomously.

The design of the LTE sidelink is suitable for specific public safety affairs (emergency communication in disaster places such as fire places or earthquakes), vehicle to internet (V2X) communication and the like. The internet of vehicles communication includes various services, such as basic security type communication, advanced (automated) driving, formation, sensor expansion, and the like. Since LTE sidelink supports only broadcast communication, and is therefore mainly used for basic security class communication, other advanced V2X services will be supported over a new air interface (NR) sidelink.

The V2X research of NR system is now beginning and companies tend to support multiple transmission modes including unicast, multicast and broadcast in NR system. Unicast, as the name implies, is a one to one transmission, and multicast is a one to many transmission.

At present, there is a concept of "Resource pool" when V2X is transmitted, where the Resource pool is sent or preconfigured by a network side, and the Resource pool may include resources used for transmission and many transmission-related parameters, including an offset value of a first subframe of the Resource pool, a bitmap (bitmap) corresponding to the Resource pool, whether PSCCH and PSCCH are transmitted in adjacent Resource Blocks (RBs), the number of subchannels and the size of each subchannel and a minimum RB index value corresponding to the subchannel, a minimum RB index value corresponding to the PSCCH pool, a Sidelink-received Signal Strength Indication (S-RSSI) measured by a Channel Busy Ratio (CBR), a threshold, and so on.

In order to solve the problem, the invention provides a method for establishing a sidelink connection, a method for allocating resources, a terminal and a network side device, wherein a type of independent resources are specially defined to transmit a message related to establishing the sidelink connection, so that a UE (user equipment) can quickly establish the sidelink connection to avoid resource collision. Alternatively, such messages and UE traffic messages may be sent in the same resource pool, but given different priorities or QoS requirements.

An embodiment of the present invention provides a method for establishing a sidelink connection, which is applied to a first terminal, and as shown in fig. 1, the method includes:

step 101: acquiring resource pool configuration information configured or pre-configured by network side equipment, wherein the resource pool configuration information is used for configuring one or more transmission resource pools for the first terminal;

step 102: and transmitting the secondary link connection establishment information to the second terminal by using specific resources in the one or more transmission resource pools.

In this embodiment, a network side device pre-configures or configures resource pool configuration information for a first terminal, where the resource pool configuration information is used to configure one or more transmission resource pools for the first terminal, where the one or more transmission resource pools include specific resources used for establishing a secondary link connection, and the first terminal may use the specific resources used for establishing the secondary link connection to establish the secondary link connection with a second terminal, so that resource collision may be avoided, and the secondary link connection between the terminals may be established quickly.

Further, the resource pool configuration information includes an indication that a transmission resource pool is used for secondary link connection establishment, and the sending secondary link connection establishment information to the second terminal using a specific resource in the one or more transmission resource pools includes:

and sending the sub-link connection establishment information to the second terminal by using the transmission resource pool corresponding to the indication.

In this way, the first terminal may select a transmission resource pool for sidelink connection establishment from the one or more transmission resource pools to transmit the sidelink connection establishment information according to the resource pool configuration information.

Further, the resource pool configuration information includes resource configuration information for establishing a secondary link connection, and the sending the secondary link connection establishment information to the second terminal using a specific resource in the one or more transmission resource pools includes:

and sending the sub-link connection establishment information to the second terminal by using the resources configured by the resource configuration information.

The first terminal may then select a resource configured by the resource configuration information from the one or more transmission resource pools to transmit the sidelink connection establishment information.

Further, the resource configuration information includes at least one of:

time and frequency domain locations of the resources;

index information of the resource.

The resources for sidelink connection establishment may be determined from one or more transmission resource pools by the content of the resource configuration information.

Further, the resource pool configuration information includes a QoS parameter or a QoS class corresponding to the transmission resource pool, and the method further includes:

acquiring a data packet or QoS information of a radio bearer for transmitting sidelink connection establishment information, wherein the QoS information comprises a QoS parameter or a QoS grade;

the transmitting of the sidelink connection setup information to the second terminal using the specific resource of the one or more transmission resource pools comprises:

and sending the secondary link connection establishment information to the second terminal by using the resource pool of which the QoS parameter or the QoS grade is not lower than the QoS information in the one or more transmission resource pools.

When a data packet for sending the sidelink connection establishment information or a QoS parameter of a wireless bearer is obtained, the sidelink connection establishment information is sent to a second terminal by using a resource pool, of which the QoS parameter is not lower than the obtained QoS parameter, in one or more transmission resource pools; and when the QoS grade of a data packet or a radio bearer for sending the sidelink connection establishment information is obtained, sending the sidelink connection establishment information to the second terminal by using the resource pool of which the QoS grade is not lower than the obtained QoS grade in the one or more transmission resource pools.

Further, the resource pool configuration information includes a parameter of the transmission resource pool, the parameter of the transmission resource pool includes a service type or a service identifier corresponding to the resource pool, and the sending of the sidelink connection establishment information to the second terminal using a specific resource in the one or more transmission resource pools includes at least one of:

when the first terminal needs to establish a secondary link unicast connection and the service type or the service identification of the unicast service corresponds to the service type or the service identification of a first target transmission resource pool, using the first target transmission resource pool to send secondary link connection establishment information to a second terminal;

and when the first terminal needs to establish the sidelink multicast connection and the service type or the service identification of the multicast service corresponds to the service type or the service identification of the second target transmission resource pool, using the second target transmission resource pool to send the sidelink connection establishment information to the second terminal.

Further, the secondary link connection establishment information includes at least one of:

connection establishment request information;

connection establishment parameter negotiation information;

response information of the connection establishment parameter negotiation information;

and sending the resources or resource pool information used by the sidelink connection establishment information and/or subsequently receiving the feedback resources or resource pool information.

The QoS parameter or QoS grade corresponding to the sub-link connection establishment information and/or the QoS parameter or QoS grade corresponding to the follow-up sub-link connection establishment response information.

Further, still include:

and receiving the response information of establishing the sidelink connection sent by the second terminal. After receiving the sidelink connection establishment response message sent by the second terminal, the first terminal can know that the sidelink connection establishment is successful.

Further, before receiving the sidelink connection setup response message sent by the second terminal, the method further includes at least one of:

notifying the second terminal of the one or more transmission resource pools configured by the resource pool configuration information, so that the second terminal can transmit a sidelink connection setup response message by using the one or more transmission resource pools configured by the resource pool configuration information;

and notifying the second terminal of the resource or resource pool information used for sending the sidelink connection establishment information in the one or more transmission resource pools and/or the resource or resource pool information for subsequently receiving the sidelink connection establishment response information, so that the second terminal can acquire the resource or resource pool for sending the sidelink connection establishment response information by using the information.

Further, the secondary link connection establishment response information includes at least one of:

response information for the connection establishment request information;

connection establishment parameter negotiation information;

response information of parameter negotiation information is established for the connection;

and sending the resource or resource pool information used by the sidelink connection establishment response information and/or the resource or resource pool information for subsequently receiving feedback.

QoS parameter or QoS grade corresponding to the secondary link connection establishment response information and/or QoS parameter or QoS grade corresponding to the subsequent secondary link connection establishment information.

Further, when the sidelink connection is successfully established and communication of unicast service or multicast service is required, the method further includes at least one of the following steps:

based on QoS parameters or QoS grades corresponding to radio bearers of unicast services, selecting a resource pool from the one or more transmission resource pools for sending the unicast services, wherein the QoS parameters or QoS grades of the selected resource pool meet the requirements of data packets or the QoS parameters or QoS grades of the radio bearers corresponding to the unicast services;

and selecting a resource pool from the one or more transmission resource pools to transmit the multicast service based on the QoS parameter or QoS grade corresponding to the wireless bearer of the multicast service, wherein the QoS parameter or QoS grade of the selected resource pool meets the requirements of the QoS parameter or QoS grade of the data packet or wireless bearer corresponding to the multicast service.

Therefore, after the sidelink connection is established, the service of the sidelink can be sent in a special resource pool or different resource pools, and higher flexibility is realized.

Further, the resource pool configuration information includes parameters of a transmission resource pool, where the parameters of the transmission resource pool include at least one of:

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

Further, the resource pool configuration information further includes at least one of the following:

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

configuration information used when the first terminal selects a resource pool configured by the network side equipment.

Further, the indication information for releasing the transmission resource includes at least one of:

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

Further, the obtaining resource pool configuration information configured or preconfigured by the network side device includes:

and receiving the resource pool configuration information sent by the network side equipment through a special signaling or a system message.

Further, the acquiring QoS information of a data packet or a radio bearer for transmitting sidelink connection establishment information includes at least one of:

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

obtaining the QoS parameters or QoS levels of radio bearers or data packets corresponding to the sidelink unicast service which arrives at the first terminal;

and obtaining the QoS parameters or QoS levels according to the wireless load or data packets corresponding to the sidelink multicast service arrived by the first terminal.

Further, the QoS parameter is a parameter that represents at least one of the following QoS requirements, and the QoS class is a QoS class obtained according to a combination of one or more QoS parameters:

payload (payload);

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

An embodiment of the present invention further provides a method for establishing a sidelink connection, which is applied to a second terminal, and as shown in fig. 2, the method includes:

step 201: receiving sidelink connection establishment information sent by a first terminal;

step 202: and sending a secondary link connection establishment response message to the first terminal, wherein the resource for sending the secondary link connection establishment response message notifies the second terminal to the first terminal, or configures or pre-configures the network side equipment to the second terminal.

In this embodiment, the second terminal sends the sidelink connection establishment response message to the first terminal by using the resource notified by the first terminal or the network side device, so that resource collision can be avoided, and the sidelink connection can be established between the terminals quickly.

connection establishment request information;

connection establishment parameter negotiation information;

response information for the connection establishment request information;

connection establishment parameter negotiation information;

Further, still include:

acquiring a data packet or QoS information of a radio bearer for sending the sidelink connection response information, wherein the QoS information comprises a QoS parameter or a QoS grade;

the sending of the sidelink connection establishment response message to the first terminal includes:

and sending a secondary link connection establishment response message to the first terminal by using one or more transmission resource pools, configured or preconfigured by the network side equipment, of which the QoS parameters or QoS levels are not lower than the QoS message.

When a data packet for sending the sidelink connection establishment information or a QoS parameter of a wireless bearer is obtained, sending the sidelink connection establishment response information to the first terminal by using a resource pool, of which the QoS parameter is not lower than the obtained QoS parameter, in one or more transmission resource pools; and when the QoS grade of a data packet or a radio bearer for sending the sidelink connection establishment information is obtained, sending the sidelink connection establishment response information to the first terminal by using the resource pool of which the QoS grade is not lower than the obtained QoS grade in the one or more transmission resource pools.

Further, the acquiring QoS information of the data packet or the radio bearer for transmitting the sidelink connection response information includes at least one of:

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

obtaining the QoS parameters or QoS levels of radio bearers or data packets corresponding to the sidelink unicast service which arrives at the first terminal or the second terminal;

obtaining the QoS parameters or QoS levels of radio bearers or data packets corresponding to the sidelink multicast service which arrives at the first terminal or the second terminal;

and acquiring the QoS information notified by the first terminal.

a payload;

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

An embodiment of the present invention further provides a method for allocating sidelink connection resources, which is applied to a network side device, and as shown in fig. 3, the method includes:

step 301: sending resource pool configuration information to a terminal, wherein the resource pool configuration information is used for configuring one or more transmission resource pools for the terminal, and the one or more transmission resource pools comprise specific resources used for establishing a secondary link connection.

Further, the resource pool configuration information includes an indication that the transmission resource pool is used for establishing the sidelink connection. In this way, the terminal may select a transmission resource pool for establishing the sidelink connection from the one or more transmission resource pools according to the resource pool configuration information to send the sidelink connection establishment information.

Further, the resource pool configuration information includes resource configuration information of resources used for establishing the sidelink connection. The terminal can then select resources configured by the resource configuration information from the one or more transmission resource pools to transmit the sidelink connection establishment information.

Further, the resource configuration information includes at least one of:

time and frequency domain locations of the resources;

index information of the resource.

and sending QoS information of a data packet or a radio bearer for establishing the sidelink connection to the terminal, wherein the QoS information comprises a QoS parameter or a QoS grade, so that the terminal can select a transmission resource pool to establish the sidelink connection according to the QoS information.

Further, the sending the resource pool configuration information to the terminal includes:

and sending the resource pool configuration information to the terminal through a special signaling or a system message.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

the configuration information is used for the terminal to select one resource pool configured by the network side equipment.

service types or service identifications corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

The technical solution of the present invention is further described below with reference to specific embodiments, where UE-1 and UE-2 in the following embodiments may be a sending end UE and a receiving end UE in sidelink transmission, or may be a receiving end UE and a sending end UE in sidelink transmission.

Example one

In this embodiment, the network side device configures or pre-configures one or more dedicated resource pools for the secondary link unicast connection establishment to the UE. When the UE establishes the sidelink unicast connection, the UE uses the dedicated resource pool to transmit a corresponding message, which includes the following steps:

step 1: the network side device notifies the UE-1 and/or UE-2 of the resource pool configuration information through a dedicated signaling (e.g., RRC Connection Reconfiguration, radio resource control Connection Reconfiguration) or a system message, where the resource pool configuration information is used to configure one or more dedicated resource pools for establishing a unicast Connection. In addition, the transmission resource pool configuration information can also be configured to UE-1 and/or UE-2 in advance.

The transmission resource pool configuration information includes at least one of the following configurations:

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

the configuration information is used for the UE-1 and/or the UE-2 to select one resource pool configured by the network side equipment;

the parameter related to the transmission resource pool may be placed in the indication information of the transmission resource pool configuration information, or may be separately indicated to the UE by the network side device.

Wherein the related parameters of the transmission resource pool comprise at least one of the following:

the resource pool is only used for indicating the establishment of unicast connection, and when the resource pool carries the indication, the UE transmits the information related to the establishment of the secondary link connection by using the resource pool corresponding to the indication;

service types or service identifications corresponding to the resource pool;

QoS parameters or QoS grades corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

The indication information for scheduling the transmission resource comprises at least one of the following information:

transmitting a Radio Network Temporary Identity (RNTI) used;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

Step 2: when one of the following conditions is met, UE-1 initiates a unicast connection establishment process, and selects one or more dedicated resource pools configured by the transmission resource pool configuration information in step 1 for unicast connection establishment to send sidelink unicast connection establishment information to UE-2:

UE-1 has unicast traffic arriving;

and the UE-1 has the unicast service arrival, and the service type or the service identification of the unicast service corresponds to the service type or the service identification of the special resource pool.

Wherein the sidelink unicast connection establishment information comprises at least one of:

connection establishment request information;

connection establishment parameter negotiation information;

and sending the resource or resource pool information used by the unicast connection establishment information and/or the resource or resource pool information for subsequently receiving the feedback.

The QoS parameter or QoS grade corresponding to the unicast connection establishment information and/or the QoS parameter or QoS grade corresponding to the subsequent unicast connection establishment response information.

If the network side device only sends the transmission resource pool configuration information to the UE-1, the UE-1 needs to inform the UE-2 of the dedicated resource pool used by itself, so that the UE-2 can use the dedicated resource pool during feedback.

And step 3: after receiving the sidelink unicast connection establishment information of the UE-1, the UE-2 selects the dedicated resource pool in the step 1 to send the sidelink unicast connection establishment response information to the UE-1;

the unicast connection establishment response information includes at least one of:

response information for the connection establishment request information;

connection establishment parameter negotiation information;

and sending the resource or resource pool information used by the unicast connection establishment response information and/or the resource or resource pool information for subsequently receiving feedback.

The QoS parameter or QoS grade corresponding to the unicast connection establishment response information and/or the QoS parameter or QoS grade corresponding to the subsequent sidelink connection establishment information.

And 4, step 4: and the UE-1 and the UE-2 complete information interaction and establish unicast connection successfully.

In this embodiment, the network side device pre-configures or configures one or more dedicated resource pools for establishing the secondary link connection for the terminal, and the terminal may establish the secondary link connection using the dedicated resource pools, so that resource collision may be avoided, and the secondary link connection may be established between the terminals quickly.

Example two

In this embodiment, the network side device configures or pre-configures, to the UE, one or more resource pools dedicated to the sidelink unicast service, where the one or more resource pools include specific resources dedicated to unicast connection establishment. And when the UE establishes the unicast connection, the UE uses the specific resource in the one or more resource pools to transmit the unicast connection establishment information. The embodiment comprises the following steps:

step 1: the network side device notifies the UE-1 and/or UE-2 of the resource pool configuration information through a dedicated signaling (e.g. RRC Connection Reconfiguration) or a system message, where the resource pool configuration information is used to configure one or more resource pools for unicast service. In addition, the transmission resource pool configuration information can also be configured to UE-1 and/or UE-2 in advance.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

configuration information used when UE-1 and/or UE-2 selects a resource pool configured by the network side equipment;

the parameter of the transmission resource pool may be placed in the indication information of the transmission resource pool configuration information, or may be indicated to the UE by the network side device alone.

The indication information for scheduling the transmission resources includes at least one of the following:

transmitting the used RNTI;

MAC layer configuration information;

MCS configuration information;

logical channel group priority information.

Wherein the parameter of the transmission resource pool comprises at least one of:

the resource pool is only used for indicating the unicast service, that is, the corresponding resource pool is only used for transmitting the unicast service;

service types or service identifications corresponding to the resource pool;

QoS parameters or QoS grades corresponding to the resource pool;

resource configuration information for unicast connection establishment, the resource configuration information indicating specific resources dedicated for unicast connection establishment in one or more resource pools for unicast traffic;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

Wherein the resource configuration information for establishing the unicast connection includes at least one of:

the time-frequency location of the resource;

index information of the resource.

Step 2: when one of the following conditions is met, UE-1 initiates a unicast connection establishment process, and selects the specific resource in step 1 to send sidelink unicast connection establishment information to UE-2;

UE-1 has unicast traffic arriving;

connection establishment request information;

connection establishment parameter negotiation information;

If the network side device only sends the transmission resource pool configuration information and the resource configuration information to the UE-1, the UE-1 further needs to inform the UE-2 of the specific resource used by itself, so that the UE-2 can use the specific resource during the feedback.

And step 3: after receiving the sidelink unicast connection establishment information of the UE-1, the UE-2 uses the specific resource to send the sidelink unicast connection establishment response information to the UE-1;

response information for the connection establishment request information;

connection establishment parameter negotiation information;

The QoS parameter or QoS grade corresponding to the unicast connection establishment response information and/or the QoS parameter or QoS grade corresponding to the subsequent unicast connection establishment information.

In this embodiment, the network side device pre-configures or configures one or more transmission resource pools for the terminal, where the one or more transmission resource pools have resources dedicated to establishing the sidelink connection, and the terminal may establish the sidelink connection using the dedicated resources, so that resource collision may be avoided, and the sidelink connection between the terminals may be established quickly.

EXAMPLE III

In this embodiment, the network side device configures, preconfigures, or agrees to define a special QoS parameter or QoS class for a data packet or radio bearer corresponding to sidelink unicast connection establishment information for the UE, and the UE selects a resource to send the unicast connection establishment information according to the QoS parameter or QoS class. The embodiment comprises the following steps:

step 1: the network side device notifies the UE of the resource pool configuration information through a dedicated signaling (e.g., RRC Connection Reconfiguration) or a system message, where the resource pool configuration information is used to configure one or more resource pools for unicast service. In addition, the transmission resource pool configuration information may also be configured to the UE in advance.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

transmitting the used RNTI;

MAC layer configuration information;

MCS configuration information;

logical channel group priority information.

QoS parameters or QoS grades corresponding to the resource pool;

an indication that the resource pool is for unicast traffic only;

service types or service identifications corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

Step 1.1, the network side device notifies the data packet corresponding to the sidelink unicast Connection establishment information or the QoS parameter or QoS class of the radio bearer to the UE through a dedicated signaling (for example, RRC Connection Reconfiguration) or a system message.

In addition, the QoS parameter or QoS class of the data packet or radio bearer corresponding to the sidelink unicast connection establishment information may also be determined by:

pre-configuring the UE;

agreed by the protocol;

the QoS parameter or QoS grade of the corresponding bearer or data packet of the unicast service arrived by the UE is obtained. E.g. the highest required QoS parameter or the highest QoS class of all bearers or packets.

The QoS parameter is a relevant parameter that can embody at least one of the following QoS requirements (e.g., in LTE, the QoS parameter embodying the lantency requirement is PPPP of V2X data packet):

-Payload (Payload) (Bytes);

-Transmission rate (Transmission rate);

-Maximum end-to-end delay (ms);

-Reliability (Reliability) (%);

-Data rate (Mbps);

minimum required communication range (meters).

The QoS grade is a QoS grade obtained correspondingly according to the combination of one or more QoS parameters and is agreed by a protocol.

The content notified to the UE in step 1 and step 1.1 may be sent in the same message or sent in two pieces of information if both are notified to the UE by the network side device, and the order of step 1 and step 1.1 is not limited.

Step 2: when the UE-1 has unicast service and needs to initiate unicast connection, the UE-1 selects the resource pool to transmit sidelink unicast connection establishment information.

The selected resource pool needs to satisfy: the QoS parameter or QoS grade corresponding to the resource pool meets the QoS parameter or QoS grade requirement of the data packet or wireless bearer corresponding to the sidelink unicast connection establishment information.

The sidelink unicast connection establishment information comprises at least one of:

connection establishment request information;

connection establishment parameter negotiation information;

And step 3: after receiving the sidelink unicast connection establishment information of the UE-1, the UE-2 selects the resource pool according to the scheme of the step 2 or determines the resource pool to use based on the resource pool used by the UE-1 notified by the UE-1, and sends the sidelink unicast connection establishment response information to the UE-1.

response information for the connection establishment request information;

connection establishment parameter negotiation information;

In this embodiment, the network side device pre-configures or configures one or more transmission resource pools for the first terminal, and also configures a data packet for secondary link connection or QoS information of a radio bearer for the terminal, and the terminal may establish the secondary link connection using resources that meet the QoS information requirement, so that resource collision may be avoided, and the secondary link connection between the terminals may be established quickly.

Example four

In this embodiment, the network side device does not configure or pre-configure a resource pool dedicated to the unicast service for the UE, and when performing subsequent unicast service transmission, the UE may dynamically select different resource pools for transmission based on different QoS requirements of different bearers, where the embodiment includes the following steps:

step 1: the network side device notifies the UE of the transmission resource pool configuration information through a dedicated signaling (e.g., RRC Connection Reconfiguration) or a system message, where the transmission resource pool configuration information is used to configure one or more dedicated resource pools for establishing a unicast Connection. In addition, the transmission resource pool configuration information can also be configured to UE-1 and/or UE-2 in advance.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

transmitting the used RNTI;

MAC layer related configuration information;

MCS configuration information;

logical channel group priority information.

the time-frequency position of the resource pool;

QoS parameters or QoS grades corresponding to the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

Step 2: UE-1 and UE-2 interact sidelink unicast connection establishment information and unicast connection establishment response information to carry out the establishment process of unicast connection;

and step 3: after the unicast connection is established, the UE dynamically selects different resource pools to send the subsequent unicast service based on the QoS parameters or QoS levels corresponding to the radio bearers of different unicast services.

The selected resource pool needs to satisfy: the QoS parameter or QoS grade corresponding to the resource pool meets the QoS parameter or QoS grade requirement of the data packet or wireless bearer corresponding to the sidelink unicast service.

The resource pool used by the unicast service may be different from the resource pool used by the unicast connection establishment.

In this embodiment, after the sidelink connection is established, the service of the sidelink may be sent in a dedicated resource pool or different resource pools, so that higher flexibility may be achieved.

EXAMPLE five

In this embodiment, the network side device configures or pre-configures one or more dedicated resource pools for the secondary link multicast connection establishment to the UE. When the UE establishes the sidelink multicast connection, the UE uses the dedicated resource pool to transmit a corresponding message, which includes the following steps:

step 1: the network side device notifies the UE-1 and/or UE-2 of the resource pool configuration information through a dedicated signaling (e.g., RRC Connection Reconfiguration, radio resource control Connection Reconfiguration) or a system message, where the resource pool configuration information is used to configure one or more dedicated resource pools for multicast Connection establishment. In addition, the transmission resource pool configuration information can also be configured to UE-1 and/or UE-2 in advance.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

the resource pool is only used for the indication of the establishment of the multicast connection, and when the resource pool carries the indication, the UE transmits the related message of the establishment of the secondary link connection by using the resource pool corresponding to the indication;

service types or service identifications corresponding to the resource pool;

QoS parameters or QoS grades corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

transmitting a Radio Network Temporary Identity (RNTI) used;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

Step 2: when one of the following conditions is met, UE-1 initiates a multicast connection establishment process, and selects one or more dedicated resource pools configured by the transmission resource pool configuration information in step 1 for multicast connection establishment to send sidelink multicast connection establishment information to UE-2:

UE-1 has multicast service to arrive;

and the UE-1 has the arrival of the multicast service, and the service type or the service identification of the multicast service corresponds to the service type or the service identification of the special resource pool.

Wherein the sidelink multicast connection establishment information includes at least one of:

connection establishment request information;

connection establishment parameter negotiation information;

and sending the resource or resource pool information used by the multicast connection establishment information and/or the resource or resource pool information for subsequently receiving feedback.

The QoS parameter or QoS grade corresponding to the multicast connection establishment information and/or the QoS parameter or QoS grade corresponding to the subsequent multicast connection establishment response information.

And step 3: after receiving the sidelink multicast connection establishment information of the UE-1, the UE-2 selects the dedicated resource pool in the step 1 to send the sidelink multicast connection establishment response information to the UE-1;

the multicast connection setup response information includes at least one of:

response information for the connection establishment request information;

connection establishment parameter negotiation information;

and sending the resource or resource pool information used by the multicast connection establishment response information and/or the resource or resource pool information for subsequently receiving feedback.

The QoS parameter or QoS grade corresponding to the multicast connection establishment response information and/or the QoS parameter or QoS grade corresponding to the subsequent sidelink connection establishment information.

And 4, step 4: and the UE-1 and the UE-2 complete information interaction and successfully establish multicast connection.

EXAMPLE six

In this embodiment, the network side device configures or pre-configures, to the UE, one or more resource pools dedicated to the sidelink multicast service, where the one or more resource pools include specific resources dedicated to multicast connection establishment. And when the UE establishes the multicast connection, the UE uses the specific resources in the one or more resource pools to transmit the multicast connection establishment information. The embodiment comprises the following steps:

step 1: the network side device notifies the UE-1 and/or UE-2 of the resource pool configuration information through a dedicated signaling (e.g. RRC Connection Reconfiguration) or a system message, where the resource pool configuration information is used to configure one or more resource pools for multicast services. In addition, the transmission resource pool configuration information can also be configured to UE-1 and/or UE-2 in advance.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

transmitting the used RNTI;

MAC layer configuration information;

MCS configuration information;

logical channel group priority information.

the resource pool is only used for the indication of the multicast service, namely, the corresponding resource pool is indicated to be only used for the transmission of the multicast service;

service types or service identifications corresponding to the resource pool;

QoS parameters or QoS grades corresponding to the resource pool;

resource configuration information for multicast connection establishment, the resource configuration information indicating specific resources dedicated to multicast connection establishment in one or more resource pools for multicast service;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

Wherein the resource configuration information for establishing the multicast connection includes at least one of the following:

the time-frequency location of the resource;

index information of the resource.

Step 2: when one of the following conditions is met, UE-1 initiates a multicast connection establishment process, and selects the specific resource in step 1 to send sidelink multicast connection establishment information to UE-2;

UE-1 has multicast service to arrive;

connection establishment request information;

connection establishment parameter negotiation information;

And step 3: after receiving the sidelink multicast connection establishment information of the UE-1, the UE-2 uses the specific resources to send the sidelink multicast connection establishment response information to the UE-1;

the multicast connection establishment response information includes at least one of:

response information for the connection establishment request information;

connection establishment parameter negotiation information;

The QoS parameter or QoS grade corresponding to the multicast connection establishment response information and/or the QoS parameter or QoS grade corresponding to the subsequent multicast connection establishment information.

EXAMPLE seven

In this embodiment, the network side device configures, preconfigures, or agrees to define a special QoS parameter or QoS class for a data packet or radio bearer corresponding to the sidelink multicast connection establishment information for the UE, and the UE selects a resource to send the multicast connection establishment information according to the QoS parameter or QoS class. The embodiment comprises the following steps:

step 1: the network side device notifies the UE of the resource pool configuration information through a dedicated signaling (e.g., RRC Connection Reconfiguration) or a system message, where the resource pool configuration information is used to configure one or more resource pools for multicast services. In addition, the transmission resource pool configuration information may also be configured to the UE in advance.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

transmitting the used RNTI;

MAC layer configuration information;

MCS configuration information;

logical channel group priority information.

QoS parameters or QoS grades corresponding to the resource pool;

the resource pool is only used for the indication of the multicast service;

service types or service identifications corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

Step 1.1, the network side device notifies the data packet corresponding to the sidelink multicast Connection establishment information or the QoS parameter or QoS class of the radio bearer to the UE through a dedicated signaling (e.g. RRC Connection Reconfiguration) or a system message.

In addition, the QoS parameter or QoS class of the data packet or radio bearer corresponding to the sidelink multicast connection establishment information may also be determined by:

pre-configuring the UE;

agreed by the protocol;

the QoS parameter or QoS grade of the corresponding load or data packet of the multicast service arrived by the UE is obtained. E.g. the highest required QoS parameter or the highest QoS class of all bearers or packets.

-Payload (Payload) (Bytes);

-Transmission rate (Transmission rate);

-Maximum end-to-end delay (ms);

-Reliability (Reliability) (%);

-Data rate (Mbps);

minimum required communication range (meters).

Step 2: when UE-1 has multicast service and needs to initiate multicast connection, UE-1 will select resource pool to transmit sidelink multicast connection establishment information.

The selected resource pool needs to satisfy: the QoS parameter or QoS grade corresponding to the resource pool meets the QoS parameter or QoS grade requirement of the data packet or wireless bearer corresponding to the sidelink multicast connection establishment information.

The sidelink multicast connection establishment information includes at least one of:

connection establishment request information;

connection establishment parameter negotiation information;

And step 3: after receiving the sidelink multicast connection establishment information of the UE-1, the UE-2 selects the resource pool according to the scheme of the step 2 or determines the used resource pool based on the resource pool used by the UE-1 notified by the UE-1, and sends the sidelink multicast connection establishment response information to the UE-1.

response information for the connection establishment request information;

connection establishment parameter negotiation information;

Example eight

In this embodiment, the network side device does not configure or pre-configure a resource pool dedicated to the multicast service for the UE, and when performing subsequent multicast service transmission, the UE may dynamically select different resource pools for transmission based on different QoS requirements of different bearers, where the embodiment includes the following steps:

step 1: the network side device notifies the UE of the resource pool configuration information through a dedicated signaling (e.g., RRC Connection Reconfiguration) or a system message, where the resource pool configuration information is used to configure one or more dedicated resource pools for multicast Connection establishment. In addition, the transmission resource pool configuration information can also be configured to UE-1 and/or UE-2 in advance.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

transmitting the used RNTI;

MAC layer related configuration information;

MCS configuration information;

logical channel group priority information.

the time-frequency position of the resource pool;

QoS parameters or QoS grades corresponding to the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region ID information of the resource pool.

Step 2: UE-1 and UE-2 interact sidelink multicast connection establishment information and multicast connection establishment response information, and carry out the establishment process of multicast connection;

and step 3: after the multicast connection is established, the UE dynamically selects different resource pools to send the subsequent multicast service based on the QoS parameters or QoS grades corresponding to the radio bearers of different multicast services.

The selected resource pool needs to satisfy: the QoS parameter or QoS grade corresponding to the resource pool meets the QoS parameter or QoS grade requirement of the data packet or wireless bearer corresponding to the sidelink multicast service.

The resource pool used by the multicast service may be different from the resource pool used by the multicast connection establishment.

In the fifth to eighth embodiments, UE-1 and UE-2 are UEs that establish sidelink connections for any two UEs in multicast.

An embodiment of the present invention further provides a first terminal, as shown in fig. 4, including:

an obtaining module 11, configured to obtain resource pool configuration information configured or preconfigured by a network side device, where the resource pool configuration information is used to configure one or more transmission resource pools for the first terminal;

a sending module 12, configured to send the sidelink connection establishment information to the second terminal by using a specific resource in the one or more transmission resource pools.

Further, the resource pool configuration information includes an indication that a transmission resource pool is used for establishing a secondary link connection, and the sending module is specifically configured to send the secondary link connection establishment information to the second terminal by using the transmission resource pool corresponding to the indication.

Further, the resource pool configuration information includes resource configuration information used for establishing a secondary link connection, and the sending module is specifically configured to send the secondary link connection establishment information to the second terminal using the resource configured by the resource configuration information. The first terminal may then select a resource configured by the resource configuration information from the one or more transmission resource pools to transmit the sidelink connection establishment information.

Further, the resource configuration information includes at least one of:

time and frequency domain locations of the resources;

index information of the resource.

Furthermore, the resource pool configuration information includes a quality of service QoS parameter or QoS class corresponding to the transmission resource pool,

the acquiring module is further configured to acquire a data packet for transmitting sidelink connection establishment information or QoS information of a radio bearer, where the QoS information includes a QoS parameter or a QoS class;

the sending module is specifically configured to send the sidelink connection establishment information to the second terminal by using the resource pool in which the QoS parameter or the QoS level is not lower than the QoS information in the one or more transmission resource pools.

Further, the resource pool configuration information includes a parameter of the transmission resource pool, the parameter of the transmission resource pool includes a service type or a service identifier corresponding to the resource pool, and the sending module is specifically configured to execute at least one of the following:

connection establishment request information;

connection establishment parameter negotiation information;

Further, still include:

and the receiving module is used for receiving the sidelink connection establishment response information sent by the second terminal. After receiving the sidelink connection establishment response message sent by the second terminal, the first terminal can know that the sidelink connection establishment is successful.

Further, the sending module is further configured to perform at least one of:

response information for the connection establishment request information;

connection establishment parameter negotiation information;

Further, when the sidelink connection is successfully established and communication of a unicast service or a multicast service is required, the sending module is further configured to execute at least one of the following:

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

Further, the obtaining module is specifically configured to receive the resource pool configuration information sent by the network side device through a dedicated signaling or a system message.

Further, the obtaining module is specifically configured to execute at least one of:

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

payload (payload);

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

An embodiment of the present invention further provides a second terminal, as shown in fig. 5, including:

a receiving module 21, configured to receive sidelink connection establishment information sent by a first terminal;

a sending module 22, configured to send a sidelink connection setup response message to the first terminal, where a resource used for sending the sidelink connection setup response message notifies the first terminal to the second terminal, or configures or pre-configures the network-side device to the second terminal.

connection establishment request information;

connection establishment parameter negotiation information;

response information for the connection establishment request information;

connection establishment parameter negotiation information;

Further, still include:

an obtaining module, configured to obtain QoS information of a data packet or a radio bearer used for sending sidelink connection response information, where the QoS information includes a QoS parameter or a QoS class;

the sending module is specifically configured to send sidelink connection establishment response information to the first terminal using a resource pool, in which a QoS parameter or a QoS level is not lower than the QoS information, of one or more transmission resource pools configured or preconfigured by the network side device.

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

and acquiring the QoS information notified by the first terminal.

a payload;

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

An embodiment of the present invention further provides a network side device, as shown in fig. 6, including:

a configuring module 31, configured to send resource pool configuration information to a terminal, where the resource pool configuration information is used to configure one or more transmission resource pools for the terminal, where the one or more transmission resource pools include specific resources used for establishing a sidelink connection.

Further, the resource configuration information includes at least one of:

time and frequency domain locations of the resources;

index information of the resource.

Further, the resource pool configuration information includes a QoS parameter or a QoS class corresponding to the transmission resource pool, and the network side device further includes:

and the sending module is used for sending the QoS information of the data packet or the radio bearer for establishing the sidelink connection to the terminal, wherein the QoS information comprises a QoS parameter or a QoS grade, so that the terminal can select a transmission resource pool to establish the sidelink connection according to the QoS information.

Further, the configuration module is specifically configured to send the resource pool configuration information to the terminal through a dedicated signaling or a system message.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

service types or service identifications corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

An embodiment of the present invention further provides a communication device, including: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the sidelink connection establishment method as described above or implementing the steps in the sidelink connection resource allocation method as described above.

The communication device may be a network side device or a terminal.

When the communication device is a network device, as shown in fig. 7, the network device 500 includes: a processor 501, a transceiver 502, a memory 503, a user interface 504, and a bus interface, wherein:

in this embodiment of the present invention, the network side device 500 further includes: a computer program stored on the memory 503 and executable on the processor 501, the computer program realizing the following steps when executed by the processor 501: sending resource pool configuration information to a terminal, wherein the resource pool configuration information is used for configuring one or more transmission resource pools for the terminal, and the one or more transmission resource pools comprise specific resources used for establishing a secondary link connection.

In fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 501 and various circuits of memory represented by memory 503 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 502 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 504 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 may store data used by the processor 501 in performing operations.

Further, the resource pool configuration information includes an indication that the transmission resource pool is used for establishing the sidelink connection.

Further, the resource pool configuration information includes resource configuration information of resources used for establishing the sidelink connection.

Further, the resource configuration information includes at least one of:

time and frequency domain locations of the resources;

index information of the resource.

and sending QoS information of a data packet or a radio bearer for establishing the sidelink connection to the terminal, wherein the QoS information comprises QoS parameters or QoS grades.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

service types or service identifications corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

When the communication device is a terminal, as shown in fig. 8, the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art will appreciate that the terminal configuration shown in fig. 8 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

When the terminal is a first terminal connected to the sidelink, the processor 610 is configured to obtain resource pool configuration information configured or preconfigured by a network side device, where the resource pool configuration information is used to configure one or more transmission resource pools for the first terminal; and transmitting the secondary link connection establishment information to the second terminal by using specific resources in the one or more transmission resource pools.

Further, the resource configuration information includes at least one of:

time and frequency domain locations of the resources;

index information of the resource.

Further, the resource pool configuration information includes a QoS parameter or a QoS class corresponding to the transmission resource pool, and when executed by the processor 610, the computer program further implements the following steps:

connection establishment request information;

connection establishment parameter negotiation information;

Further, the computer program when executed by the processor 610 further performs the steps of:

and receiving the response information of establishing the sidelink connection sent by the second terminal.

Further, before receiving the sidelink connection establishment response message sent by the second terminal, the computer program, when being executed by the processor 610, further implements the following steps:

notifying the second terminal of the one or more transmission resource pools configured by the resource pool configuration information;

and notifying the second terminal of the resource or resource pool information used for sending the sidelink connection establishment information in the one or more transmission resource pools, and/or subsequently receiving the resource or resource pool information of the sidelink connection establishment response information.

response information for the connection establishment request information;

connection establishment parameter negotiation information;

Further, when the sidelink connection is successfully established and communication of a unicast service or a multicast service is required, the computer program is executed by the processor 610 to further implement the following steps:

based on QoS parameters or QoS grades corresponding to radio bearers of unicast services, selecting a resource pool from the one or more transmission resource pools for sending the unicast services, wherein the QoS parameters or QoS grades of the selected resource pool are not lower than the QoS parameters or QoS grades of data packets or radio bearers corresponding to the unicast services;

and selecting a resource pool from the one or more transmission resource pools to transmit the multicast service based on the QoS parameter or QoS grade corresponding to the wireless bearer of the multicast service, wherein the QoS parameter or QoS grade of the selected resource pool is not lower than the QoS parameter or QoS grade corresponding to the data packet or wireless bearer of the multicast service.

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

a payload;

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

When the terminal is a second terminal connected to the sidelink, the processor 610 is configured to receive sidelink connection establishment information sent by the first terminal; and sending a secondary link connection establishment response message to the first terminal, wherein the resource for sending the secondary link connection establishment response message notifies the second terminal to the first terminal, or configures or pre-configures the network side equipment to the second terminal.

connection establishment request information;

connection establishment parameter negotiation information;

response information for the connection establishment request information;

connection establishment parameter negotiation information;

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

and acquiring the QoS information notified by the first terminal.

a payload;

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 610; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 601 may also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 602, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output as sound. Also, the audio output unit 603 can also provide audio output related to a specific function performed by the terminal 600 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.

The input unit 604 is used to receive audio or video signals. The input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics processor 6041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphic processor 6041 may be stored in the memory 609 (or other storage medium) or transmitted via the radio frequency unit 601 or the network module 602. The microphone 6042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 601 in case of the phone call mode.

The terminal 600 also includes at least one sensor 605, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 6061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 6061 and/or the backlight when the terminal 600 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 605 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 606 is used to display information input by the user or information provided to the user. The Display unit 606 may include a Display panel 6061, and the Display panel 6061 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 607 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. Touch panel 6071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 6071 using a finger, stylus, or any suitable object or accessory). The touch panel 6071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 610, receives a command from the processor 610, and executes the command. In addition, the touch panel 6071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, the other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 6071 can be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation on or near the touch panel 6071, the touch operation is transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 provides a corresponding visual output on the display panel 6061 according to the type of the touch event. Although in fig. 8, the touch panel 6071 and the display panel 6061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to implement the input and output functions of the terminal, and this is not limited herein.

The interface unit 608 is an interface for connecting an external device to the terminal 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 600 or may be used to transmit data between the terminal 600 and an external device.

The memory 609 may be used to store software programs as well as various data. The memory 609 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 609 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 610 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 609 and calling data stored in the memory 609, thereby performing overall monitoring of the terminal. Processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.

The terminal 600 may further include a power supply 611 (e.g., a battery) for supplying power to the various components, and preferably, the power supply 611 is logically connected to the processor 610 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the terminal 600 includes some functional modules that are not shown, and are not described in detail herein.

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 executed by a processor, the computer program implements the steps in the sidelink connection establishing method or implements the steps in the sidelink connection resource allocation method.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, user equipment (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or user equipment 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 user equipment. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or user equipment that comprises the element.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A method for establishing a sidelink connection, applied to a first terminal, includes:

2. The sidelink connection establishing method according to claim 1, wherein the resource pool configuration information includes an indication that a transmission resource pool is used for sidelink connection establishment;

3. The sidelink connection establishing method according to claim 1, wherein the resource pool configuration information includes resource configuration information for sidelink connection establishment;

4. The sidelink connection establishment method of claim 3, wherein the resource configuration information comprises at least one of:

time and frequency domain locations of the resources;

index information of the resource.

5. The sidelink connection establishing method according to claim 1, wherein the resource pool configuration information includes a QoS parameter or QoS class corresponding to a transmission resource pool;

the method further comprises the following steps:

6. The sidelink connection establishing method according to any one of claims 1-5, wherein the resource pool configuration information includes a parameter of the transmission resource pool, and the parameter of the transmission resource pool includes a service type or a service identifier corresponding to the resource pool;

transmitting the sidelink connection setup information to the second terminal using a specific resource of the one or more transmission resource pools comprises at least one of:

7. The sidelink connection establishment method of any one of claims 1-5, wherein the sidelink connection establishment information comprises at least one of:

connection establishment request information;

connection establishment parameter negotiation information;

sending resources or resource pool information used by the secondary link connection establishment information and/or subsequently receiving feedback resources or resource pool information;

8. The sidelink connection establishment method as recited in any one of claims 1 to 5, further comprising:

9. The sidelink connection establishing method according to claim 8, wherein before receiving a sidelink connection establishment response message sent by the second terminal, the method further comprises at least one of:

10. The sidelink connection establishment method as recited in claim 8, wherein the sidelink connection establishment response message includes at least one of:

response information for the connection establishment request information;

connection establishment parameter negotiation information;

sending the resource or resource pool information used by the secondary link connection establishment response information and/or the resource or resource pool information subsequently fed back;

11. The sidelink connection establishing method according to claim 1, wherein when the sidelink connection is successfully established and communication of a unicast service or a multicast service is required, the method further comprises at least one of the following:

12. The sidelink connection establishing method as recited in any one of claims 2-6, wherein the resource pool configuration information includes parameters of a transmission resource pool, and the parameters of the transmission resource pool include at least one of:

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

13. The sidelink connection establishment method of any one of claims 2-6, wherein the resource pool configuration information further comprises at least one of:

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

14. The sidelink connection establishing method as recited in claim 13, wherein the indication information for releasing transmission resources comprises at least one of:

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

15. The sidelink connection establishing method according to claim 1, wherein the obtaining of the resource pool configuration information configured or preconfigured by the network side device comprises:

16. The sidelink connection establishment method of claim 5, wherein the obtaining of the QoS information of the data packet or the radio bearer for transmitting the sidelink connection establishment information comprises at least one of:

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

17. The sidelink connection establishing method as recited in claim 16, wherein the QoS parameter is a parameter that embodies at least one of the following QoS requirements, and the QoS class is a QoS class obtained according to a combination of one or more QoS parameters:

a payload;

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

18. A method for establishing a sidelink connection, applied to a second terminal, includes:

19. The sidelink connection establishment method of claim 18, wherein the sidelink connection establishment information comprises at least one of:

connection establishment request information;

connection establishment parameter negotiation information;

20. The sidelink connection establishment method as recited in claim 18, wherein the sidelink connection establishment response message comprises at least one of:

response information for the connection establishment request information;

connection establishment parameter negotiation information;

21. The sidelink connection establishment method of claim 18, further comprising:

22. The sidelink connection establishing method as recited in claim 21, wherein the obtaining QoS information of a packet or a radio bearer for transmitting the sidelink connection response information comprises at least one of:

acquiring the QoS information configured by the network side equipment;

acquiring the QoS information preconfigured by the network side equipment;

acquiring the QoS information agreed by a protocol;

and acquiring the QoS information notified by the first terminal.

23. The sidelink connection establishing method of claim 22, wherein the QoS parameter is a parameter that embodies at least one of the following QoS requirements, and the QoS class is a QoS class obtained according to a combination of one or more QoS parameters:

a payload;

a transmission rate;

maximum end-to-end delay;

reliability;

a data rate;

minimum communication distance.

24. A method for allocating sidelink connection resources is applied to a network side device, and comprises the following steps:

25. The method of claim 24, wherein the resource pool configuration information includes an indication that a transmission resource pool is used for establishing a sidelink connection.

26. The sidelink connection resource allocation method of claim 24, wherein the resource pool configuration information comprises resource configuration information of resources used for sidelink connection establishment.

27. The sidelink connection resource allocation method of claim 26, wherein the resource configuration information comprises at least one of:

time and frequency domain locations of the resources;

index information of the resource.

28. The method of claim 24, wherein the resource pool configuration information includes a QoS parameter or a QoS class corresponding to the transmission resource pool, and the method further comprises:

29. The sidelink connection resource allocation method of claim 24, wherein the sending resource pool configuration information to the terminal comprises:

30. The sidelink connection resource allocation method of any one of claims 24-28, wherein the resource pool configuration information further comprises at least one of:

indication information for releasing transmission resources;

indication information for scheduling transmission resources;

31. The method according to any of claims 24-28, wherein the resource pool configuration information includes parameters of a transmission resource pool, and the parameters of the transmission resource pool include at least one of the following:

service types or service identifications corresponding to the resource pool;

the time-frequency position of the resource pool;

receiving parameter sets corresponding to the resource pools;

sending parameter sets corresponding to the resource pool;

a priority list of resource pools;

a resource index of the resource pool;

region identification ID information of the resource pool.

32. The sidelink connection resource allocation method of claim 31, wherein the indication information for releasing transmission resource comprises at least one of:

transmitting the used radio network temporary identifier RNTI;

media Access Control (MAC) layer configuration information;

modulation and Coding Scheme (MCS) configuration information;

logical channel group priority information.

33. A first terminal, comprising:

34. The first terminal of claim 33, wherein the resource pool configuration information includes an indication that a transmission resource pool is used for establishing a secondary link connection, and the sending module is specifically configured to send the secondary link connection establishment information to the second terminal using the transmission resource pool corresponding to the indication.

35. The first terminal of claim 33, wherein the resource pool configuration information includes resource configuration information for establishing a secondary link connection, and the sending module is specifically configured to send the secondary link connection establishment information to the second terminal using the resource configured by the resource configuration information.

36. The first terminal of claim 35, wherein the resource configuration information comprises at least one of:

time and frequency domain locations of the resources;

index information of the resource.

37. The first terminal of claim 33, wherein the resource pool configuration information includes a quality of service (QoS) parameter or a QoS class corresponding to a transmission resource pool,

38. A second terminal, comprising:

a sending module, configured to send sidelink connection setup response information to the first terminal, where a resource used for sending the sidelink connection setup response information notifies the first terminal to the second terminal, or configures or pre-configures the network side device to the second terminal.

39. A network-side device, comprising:

40. The network-side device of claim 39, wherein the resource pool configuration information includes an indication that a transmission resource pool is used for secondary link connection establishment.

41. The network-side device of claim 39, wherein the resource pool configuration information comprises resource configuration information of resources used for establishing the sidelink connection.

42. The network-side device of claim 41, wherein the resource configuration information comprises at least one of:

time and frequency domain locations of the resources;

index information of the resource.

43. The network-side device of claim 39, wherein the resource pool configuration information includes a quality of service (QoS) parameter or a QoS class corresponding to a transmission resource pool, and the network-side device further includes:

a sending module, configured to send, to the terminal, QoS information of a data packet or a radio bearer used for establishing a sidelink connection, where the QoS information includes a QoS parameter or a QoS class.

44. A communication device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps in the sidelink connection establishment method as claimed in any one of claims 1 to 17 or the steps in the sidelink connection establishment method as claimed in any one of claims 18 to 23 or the steps in the sidelink connection resource allocation method as claimed in any one of claims 24 to 32.

45. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps in the sidelink connection establishment method as set forth in one of the claims 1 to 17 or the steps in the sidelink connection establishment method as set forth in one of the claims 18 to 23 or the steps in the sidelink connection resource allocation method as set forth in one of the claims 24 to 32.