WO2016026454A1

WO2016026454A1 - Device-to-device information notification method, user terminal and base station

Info

Publication number: WO2016026454A1
Application number: PCT/CN2015/087693
Authority: WO
Inventors: 吴蕴璐; 陈琳
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-08-21
Filing date: 2015-08-20
Publication date: 2016-02-25
Also published as: CN105472740A

Abstract

Disclosed is a device-to-device (D2D) information notification method. The method comprises: a user terminal sends a D2D resource configuration request message to a base station, the D2D resource configuration request message carrying information about applications of the user terminal; and after the base station receives the D2D resource configuration request message, the base station configures a corresponding D2D discovery or communication transmission resource for each application that has passed authorization and verification. Also disclosed are a corresponding base station and user terminal.

Description

Method for device information notification, user terminal and base station

Technical field

The embodiments of the present invention relate to, but are not limited to, the field of wireless communication technologies, and in particular, to a D2D (Device-to-Device) information notification method, a user terminal, and a base station.

Background technique

With the development of wireless multimedia services, people's demand for high data rates and user experience is increasing, which puts high demands on the system capacity and coverage of traditional cellular networks. On the other hand, application scenarios such as public safety, social networking, close-range data sharing, and local advertising have led to an increasing demand for understanding and communicating with nearby people or things (Proximity Services). Traditional cell-based cellular networks have significant limitations in supporting high data rates and proximity services. In this context, D2D (Device-to-Device), which represents a new direction for future communication technologies, is emerging. Technology came into being. The application of D2D technology can reduce the load on the cellular network, reduce the battery power consumption of the user equipment, increase the data rate, and improve the robustness of the network infrastructure, which satisfies the requirements of the above high data rate services and proximity services.

D2D technology can work in licensed or unlicensed bands, allowing multiple D2D-enabled user equipment (D2D User Equipment, D2D UE) to directly discover without network infrastructure or network infrastructure. / Direct communication. There are three main application scenarios for D2D:

1) UE1 and UE2 perform data interaction under the coverage of the cellular network, and the user plane data does not pass through the network infrastructure, as shown in mode 1 of FIG. 1;

2) UE relay transmission in the weak/uncovered area, as shown in mode 2 of FIG. 1, allows UE4 with poor signal quality to communicate with the network through UE3 with network coverage nearby, which can help operators expand coverage and increase capacity. .

3) In the event of an earthquake or emergency, the cellular network is not working properly, allowing direct communication between devices, as in Mode 3 of Figure 1, the control plane and user plane between UE5, UE6 and UE7 do not pass through the network infrastructure. Perform one-hop or multi-hop data communication.

The D2D technology generally includes a D2D discovery technology and a D2D communication technology, wherein the D2D discovery technology refers to a technique for determining/determining whether or not the UEs are adjacent. Generally, D2D UEs can discover each other by sending or receiving discovery signals/information. D2D communication technology refers to a technology in which some or all of the communication data between D2D UEs can communicate directly without going through the network infrastructure.

For D2D discovery, there are two transmission resource allocation modes for D2D discovery, namely: Type 1 (Type 1). The transmission resource allocation of D2D discovery is not based on a specific UE, and the transmission resource allocation is provided for all UEs, that is, the base station. A D2D discovered transmission resource pool, the D2D UE participating in the D2D discovery listens to the resource pool, and obtains the transmission resource of the D2D discovery through contention; Type 2 (Type 2), and the transmission resource allocation of the D2D discovery is based on a specific UE. The base station allocates a dedicated resource to the UE, that is, the base station allocates a suitable D2D-discovered data transmission resource to the UE according to the request of the UE.

For D2D communication, there are two modes of transmission resource allocation for D2D communication, namely: Mode 1 (Mode 1). The transmission resource allocation of D2D communication is based on a specific UE, and the base station allocates a dedicated resource to the UE, that is, The UE requests transmission resources from the base station, and the eNB schedules the transmission resources to be used for SA (Scheduling Assignment) and data transmission; Mode 2 (Mode 2), the transmission resource allocation of the D2D communication is not based on a specific UE, and the transmission resource allocation is For all UEs, that is, the base station provides a transmission resource pool for D2D communication, the D2D UE participating in the D2D communication listens to the resource pool and acquires the transmission resource of the D2D communication in a competitive manner.

In the D2D discovery, from the perspective of transmission, for the UE in the IDLE state, the base station can provide a Type 1 transmission resource pool in the System Information Block (SIB), from the proximity service-based function ProSe (Proximity-based Services). The UE that obtains the D2D discovery transmission grant in the Function can compete for the transmission resource of the D2D discovery. In addition, the base station may indicate that the D2D is supported in the SIB, but does not provide any transmission resources, and the UE needs to enter the connection state to acquire the transmission resource of the D2D discovery. For the UE in the connected state, the UE that obtains the D2D discovery transmission authorization from the ProSe Function indicates that the base station wants to perform D2D discovery transmission, and the base station discovers the D2D according to the UE context acquired from the MME (Mobility Management Entity). The transmission performs authorization verification. If the authorization verification is successful, the base station configures the Type 1 transmission resource pool or the Type 2 transmission resource to the UE through dedicated signaling. If the authorization verification is unsuccessful, the base station does not configure the Type 1 transmission resource pool or Type 2 transmission to the UE through dedicated signaling. Lose resources. From the perspective of reception, the base station can provide the received resources of the D2D discovery in the SIB.

In D2D communication, from the perspective of transmission, when the UE is outside the coverage, the SA resource pool used for transmission is pre-configured. When the UE is in the coverage, for the connected UE, the UE that obtains the D2D communication transmission authorization from the ProSe Function indicates that the base station wants to perform the D2D communication transmission, and the base station transmits the D2D communication according to the UE context acquired from the MME. Authorization verification is performed. If the authorization verification is successful, the base station configures the Mode 2 transmission resource pool or the Mode 1 transmission resource to the UE through dedicated signaling. If the authorization verification is unsuccessful, the base station does not configure the Mode 2 transmission resource pool or the Mode 1 transmission resource to the UE through dedicated signaling. For the UE in the IDLE state, the base station may provide a Mode 2 transmission resource pool in the SIB, and the UE that obtains the D2D communication transmission authorization from the ProSe Function may compete to acquire the transmission resource of the D2D communication. In addition, the base station may indicate that the D2D is supported in the SIB, and the UE needs to enter the connection state to acquire the transmission resource of the D2D communication. From the perspective of reception, when the UE is outside the coverage, the SA resource pool used for reception is pre-configured. When the UE is in coverage, the base station may provide an SA resource pool for D2D communication in the SIB or in dedicated signaling.

Currently, the transmission or reception resource allocation of D2D discovery is only for one application of the D2D UE. Considering that in D2D discovery, it is necessary to support multiple applications running on the D2D UE at the same time, how to implement the UE to obtain the D2D discovery/communication transmission or reception resources of multiple applications, and how to release the D2D discovery/communication transmission of the corresponding application subsequently. Or receiving resources is one of the problems that need to be solved.

In addition, if the information about the authorization change is obtained at the base station, some corresponding processing needs to be performed on the air interface to enable the UE to no longer use the allocated resources for D2D discovery or transmission or reception of communication, or release the allocated for D2D discovery or communication. Transmission of resources is also one of the problems that need to be solved.

Further, for the connected UE, if the base station performs D2D discovery or communication transmission authorization verification according to the UE context acquired from the MME, the base station may send an independent RRC (Radio Resource Control) message or It is unsuccessful to notify the UE of the D2D discovery or communication transmission authorization by adding a cell in the RRC message. Therefore, how to notify the UE of the unsuccessful D2D discovery or communication transmission authorization in an explicit manner is also one of the problems to be solved.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a method for D2D information notification, a user terminal, and a base station, which can implement notification of D2D information.

An embodiment of the present invention provides a method for D2D information notification, where the method includes:

The user terminal sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried;

After receiving the D2D resource configuration request message, the base station configures a corresponding D2D discovery or communication transmission resource for each application that is authorized to authenticate.

Optionally, the user terminal sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is included, including:

The user terminal sends a D2D resource configuration request message to the base station, and the information of the application of the user terminal is carried by the D2D discovery or the communication transmission resource configuration request list; or

The user terminal sends a plurality of D2D resource configuration request messages to the base station, and each D2D resource configuration request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.

Optionally, the D2D discovery or communication transmission resource configuration request list includes:

An application identifier of an application that needs to perform D2D discovery or communication transmission or an index generated according to an application identifier; or

The application identifier of all applications or the index generated according to the application identifier, and an indication of whether each application needs to perform D2D discovery or communication transmission; or

Whether each application in all applications requires an indication of D2D discovery or communication transmission, the indication of each application being arranged in a default order.

Optionally, before the base station configures the corresponding D2D discovery or communication transmission resource for each application that is authorized to be authenticated, the method further includes:

The base station is authorized according to the proximity service ProSe received from the mobility management entity MME The information authenticates each application of the user terminal separately.

Optionally, the D2D resource configuration request message is a radio resource control RRC connection request message or an RRC connection setup complete message or a UE auxiliary information message.

The embodiment of the invention further provides a method for the device to notify the device D2D information, the method comprising:

The user terminal sends a D2D resource release request message to the base station, where the information of the application of the user terminal is carried;

After receiving the D2D resource release request message, the base station releases the D2D discovery or communication transmission resource allocated to the application.

Optionally, the user terminal sends a D2D resource release request message to the base station, where the information of the application of the user terminal is included, including:

Transmitting, by the user terminal, a D2D resource release request message to the base station, where the information of the application of the user terminal is carried by the D2D discovery or the communication transmission resource release request list; or

The user terminal sends a plurality of D2D resource release request messages to the base station, and each D2D resource release request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.

Optionally, the D2D discovery or communication transmission resource release request list includes:

An application identifier of an application that needs to release a D2D discovery or communication transmission resource or an index generated according to an application identifier; or

An application identifier of all applications or an index generated according to the application identifier, and an indication of whether each application needs to perform D2D discovery or release of communication resources; or

Whether each application in all applications needs to perform an indication of D2D discovery or communication resource release, and the indication of each application is arranged in a default order.

The user terminal sends a D2D resource configuration request message to the base station, and identifies, by using the RRC transaction identifier cell in the D2D resource configuration request message, a request for D2D discovery or communication transmission resource configuration of different applications;

After receiving the D2D resource configuration request message sent by the user terminal, the base station allocates different indexes for the application for requesting the D2D discovery or the communication transmission resource by the user terminal through which the authorization verification passes.

Optionally, after the base station receives the D2D resource configuration request message sent by the user terminal, the method further includes: the base station configuring a corresponding transmission resource for the application that requests the D2D discovery or the communication transmission resource by the user terminal that is authorized to authenticate.

Optionally, before the base station allocates different indexes to the application for requesting D2D discovery or communication transmission resources by the user terminal through which the authentication is passed, the method further includes: the base station according to the ProSe authorization information received from the mobility management entity MME. Authorize authentication for each application of the user terminal.

Optionally, the method further includes:

The user terminal sends a D2D resource release request message to the base station, where the identifier information of the application that requests to release the D2D discovery or communication transmission resource is carried, and the identifier information of the application is an index allocated by the base station to the application;

After receiving the D2D resource release request message, the base station releases the transmission resource configured for the corresponding application.

Optionally, the D2D resource configuration request message is an RRC connection request message or an RRC connection setup complete message or a UE auxiliary information message.

Optionally, the base station allocates different indexes to the application for requesting the D2D discovery or the communication transmission resource by the user terminal that is authorized to authenticate, including: the base station requests the D2D discovery or the user terminal that passes the authorization verification by using the RRC connection reconfiguration message. The application of the communication transmission resource allocates different indexes.

After the base station learns that the D2D discovery or the communication transmission authorization of the user terminal is changed, the user terminal is notified by the air interface signaling message that the D2D discovery or the communication transmission authorization changes, including from the authorization. Not authorized;

After receiving the air interface signaling message, the user terminal no longer utilizes or releases resources allocated for the D2D discovery or communication transmission.

Optionally, the base station learns that the D2D discovery or the communication transmission authorization of the user terminal is changed, and the base station receives the UE context modification request message sent by the MME, and learns that the D2D discovery or the communication transmission authorization of the user terminal is changed.

Optionally, the base station notifies the user terminal by using the air interface signaling message, where the base station sends an RRC connection reconfiguration message to the user terminal, where the D2D discovery or communication transmission resource allocated for the user terminal is empty;

The method further includes: the base station configuring the D2D discovery or communication transmission resource of the user terminal to a required or Need OR by using an RRC connection reconfiguration message.

Optionally, the base station notifies the user terminal by using an air interface signaling message, where the base station sends an RRC connection reconfiguration message to the user terminal, and carries a new cause value or indication information indicating that the D2D discovery or the communication transmission resource authorization is changed.

Optionally, after receiving the air interface signaling message, the user terminal does not use or release resources allocated for the D2D discovery or communication transmission, including:

After the user terminal receives the RRC connection reconfiguration message, the D2D discovery or communication transmission resource of the user terminal is configured as Need OR, and the D2D discovery or communication transmission resource allocated for the user terminal carried in the RRC connection reconfiguration message is empty. And determining, in conjunction with the D2D discovery or communication transmission resource type, that resources allocated for the D2D discovery or communication transmission are no longer utilized or released.

After receiving the RRC connection reconfiguration message, the user terminal determines, according to the D2D discovery or the communication transmission resource type, that the D2D discovery or the D2D discovery is not used or released according to the new cause value or the indication information carried in the RRC connection reconfiguration message. The resources allocated by the communication transmission.

When the user terminal sends a D2D resource configuration request message to the base station, the timer configured by the base station for the user terminal is started;

If the D2D discovery or communication transmission resource allocated by the base station is not received, the number of times of resending the D2D resource configuration request message is determined to be a threshold. If the threshold is not reached, the D2D resource configuration request message is resent to the base station. And restarting the timer. If the threshold is reached, it is considered that the authorization of the D2D transmission or the communication transmission performed at the base station is unsuccessful, and the D2D resource configuration request message is sent to the base station.

Optionally, after the user terminal relinquishes the D2D resource configuration request message sent to the base station, the method further includes: if the D2D discovery or the communication transmission authorization authentication is obtained from the ProSe Function, sending the device-to-device D2D resource configuration request to the base station. The message starts the timer configured by the base station for the user terminal.

The embodiment of the invention further provides a user terminal, including:

a first configuration module, configured to configure information of the application;

The first sending module is configured to send a device-to-device D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried.

Optionally, the first sending module sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is included, including:

Transmitting, by the first sending module, a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried by the D2D discovery or the communication transmission resource configuration request list; or

The first sending module sends a plurality of D2D resource configuration request messages to the base station, and each D2D resource configuration request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.

Application ID of all applications or an index generated according to the application identifier, and each application Whether an indication of D2D discovery or communication transmission is required; or

The embodiment of the invention further provides a base station, including:

a first receiving module, configured to receive a device-to-device D2D resource configuration request message sent by the user terminal, where the D2D resource configuration request message carries information about an application of the user terminal;

The first resource configuration module is configured to configure a corresponding D2D discovery or communication transmission resource for each application passed by the authorization verification.

Optionally, the base station further includes: a first authorization module, configured to perform authorization authentication on each application of the user terminal according to the ProSe authorization information received from the mobility management entity MME.

The embodiment of the invention further provides a user terminal, including:

a second configuration module configured to configure application information;

The second sending module is configured to send a device-to-device D2D resource release request message to the base station, where the information of the application of the user terminal is carried.

Optionally, the second sending module sends a D2D resource release request message to the base station, where the information of the application of the user terminal is included, including:

The second sending module sends a D2D resource release request message to the base station, where the D2D discovery or the communication transmission resource release request list carries the information of the application of the user terminal; or

The second sending module sends a plurality of D2D resource release request messages to the base station, and each D2D resource release request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.

The embodiment of the invention further provides a base station, including:

a second receiving module, configured to receive a device-to-device D2D resource release request message sent by the user terminal, where the D2D resource release request message carries information about an application of the user terminal;

The first resource release module is configured to release the D2D discovery or communication transmission resource allocated to the application.

The embodiment of the invention further provides a user terminal, including:

a third configuration module, configured to configure an RRC transaction identification cell to identify a request for device D2D discovery or communication transmission resource configuration for different applications;

The third sending module is configured to send a D2D resource configuration request message to the base station, and identify, by using the RRC transaction identifier cell in the D2D resource configuration request message, a request for D2D discovery or communication transmission resource configuration of different applications.

Optionally, the third sending module is further configured to send a D2D resource release request message to the base station, where the identifier information of the application requesting to release the D2D discovery or the communication transmission resource is carried, where the identifier information of the application is allocated by the base station to the application. index of.

The embodiment of the invention further provides a base station, including:

a third receiving module, configured to receive a D2D resource configuration request message sent by the user terminal, where the D2D resource configuration request message carries information about an application of the user terminal;

The index allocation module is configured to allocate different indexes for the application for requesting the D2D discovery or communication transmission resource by the user terminal through which the authorization verification passes.

Optionally, the base station further includes: a second resource configuration module, configured to configure a corresponding transmission resource for an application that requests the user terminal through which the authorization verification requests D2D discovery or communication transmission resources.

Optionally, the base station further includes: a second authorization module, configured to perform authorization authentication on each application of the user terminal according to the ProSe authorization information received from the mobility management entity MME.

Optionally, the index allocation module allocates different indexes to the application for requesting the D2D discovery or the communication transmission resource by the user terminal through which the authorization verification is passed, including: the index allocation module requests the D2D for the user terminal through which the authorization verification is passed through the RRC connection reconfiguration message. Applications that discover or communicate transmission resources allocate different indexes.

Optionally, the base station further includes a second resource release module;

The third receiving module is further configured to receive the D2D resource release request message sent by the user terminal, where the D2D resource release request message carries the identifier information of the application that requests to release the D2D discovery or the communication transmission resource, where the identifier information of the application is An index assigned by the application;

The second resource release module is configured to release the transmission resource configured for the corresponding application.

The embodiment of the invention further provides a base station, including:

An information acquiring module, configured to acquire information that a D2D discovery or a communication transmission authorization of the user terminal is changed;

The fourth sending module is configured to notify the user terminal of the information that the D2D discovery or the communication transmission authorization of the user terminal is changed by the air interface signaling message, where the D2D discovery or the communication transmission authorization changes from the authorization to the unauthorized.

Optionally, the information acquiring module acquires the information that the D2D discovery or the communication transmission authorization of the user terminal is changed, and the information acquiring module receives the UE context modification request message sent by the mobility management entity MME, and obtains the D2D discovery or the communication transmission of the user terminal. The information that the authorization has changed.

Optionally, the base station further includes a fourth configuration module;

a fourth configuration module, configured to configure the D2D discovery or communication transmission resource of the user terminal to be required or Need OR by using an RRC connection reconfiguration message;

The fourth sending module is configured to notify the user terminal by using the air interface signaling message, and the base station sends an RRC connection reconfiguration message to the user terminal, where the D2D discovery or communication transmission resource allocated for the user terminal is empty.

Optionally, the fourth sending module notifies the user terminal by using the air interface signaling message, where the fourth sending module sends an RRC connection reconfiguration message to the user terminal, carrying a new reason for indicating that the D2D discovery or the communication transmission resource authorization is changed. Value or indication.

The embodiment of the invention further provides a user terminal, including:

a fourth receiving module, configured to receive an air interface signaling message sent by the base station, where the air interface signaling message is set to notify the user terminal that the D2D discovery or the communication transmission authorization is changed;

A resource processing module is configured to no longer utilize or release resources allocated for the D2D discovery or communication transmission.

Optionally, the fourth receiving module receives the air interface signaling message sent by the base station, where the fourth receiving module receives the RRC connection reconfiguration message, where the D2D discovery or communication transmission resource allocated for the user terminal is empty;

The resource processing module no longer utilizes or releases resources allocated for the D2D discovery or communication transmission, including: the resource processing module determines that the D2D discovery or communication transmission resource of the user terminal is configured to require or Need OR and the RRC connection The D2D discovery or communication transmission resource allocated for the user terminal carried in the reconfiguration message is empty, and the resource allocated for the D2D discovery or communication transmission is no longer utilized or released in combination with the D2D discovery or communication transmission resource type.

Optionally, the fourth receiving module receives the air interface signaling message sent by the base station, where the fourth receiving module receives the RRC connection reconfiguration message, where the new cause value or the indication information is carried;

The resource processing module no longer utilizes or releases the resource allocated for the D2D discovery or communication transmission, and the method includes: the resource processing module combines the D2D according to the new cause value or the indication information carried in the RRC connection reconfiguration message. Discovery or communication transmission resource type determined to no longer be utilized or released Resources allocated for the D2D discovery or communication transmission.

The embodiment of the invention further provides a user terminal, including:

a fifth sending module, configured to: when the device sends a device-to-device D2D resource configuration request message to the base station, start a timer configured by the base station for the user terminal;

And the retransmission module is configured to: if the D2D discovery or communication transmission resource allocated by the base station is not received when the timer expires, determine whether the number of times of resending the D2D resource configuration request message reaches a threshold, and if the threshold is not reached, re-send to the base station The D2D resource configuration request message is sent, and the timer is restarted. If the threshold is reached, the authorization of the D2D transmission or the communication transmission performed at the base station is considered unsuccessful, and the D2D resource configuration request message is sent to the base station.

Optionally, the retransmission module is further configured to: after abandoning the sending of the D2D resource configuration request message to the base station, determine, if the D2D discovery or the communication transmission authorization authentication is obtained from the ProSe Function, send the device-to-device D2D resource to the base station. The request message is configured to start a timer configured by the base station for the user terminal.

Compared with the related art, the D2D information notification method provided by the embodiment of the present invention can implement the D2D discovery/communication transmission resource of the multiple applications, and release the D2D discovery/communication transmission resource of the corresponding application. And after the base station learns that the user terminal authorization is changed, the user terminal is notified by the air interface signaling message that the UE no longer utilizes or releases the transmission resource of the D2D discovery/communication, and the D2D discovery or communication transmission performed by the base station is performed in an implicit manner. The information indicating that the authorization is unsuccessful is notified to the UE.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a schematic diagram of a D2D technology application mode in the related art;

2 is a flowchart (requesting configuration resources) of a method for D2D information notification according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for D2D information notification according to an embodiment of the present invention. source);

4 is a flowchart of a method for D2D information notification according to an embodiment of the present invention;

FIG. 5 is a flowchart of a method for D2D information notification according to an embodiment of the present invention (a process after an authorization change is known);

FIG. 6 is a flowchart of a method for D2D information notification according to an embodiment of the present invention (implicitly notifying that the authorization performed by the UE base station is unsuccessful);

FIG. 7 is a schematic structural diagram of a user terminal according to an embodiment of the present invention (requesting configuration resources);

FIG. 8 is a schematic structural diagram (configuration resource) of a base station according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a user terminal according to an embodiment of the present invention (requesting resource release);

FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention (release resources);

FIG. 11 is a schematic structural diagram of a user terminal according to an embodiment of the present invention (requesting resource allocation and releasing resources);

FIG. 12 is a schematic structural diagram of a base station (configuring resources and releasing resources) according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a base station according to an embodiment of the present invention (a process after an authorization change is learned);

FIG. 14 is a schematic structural diagram of a user terminal according to an embodiment of the present invention (known as an authorization change);

FIG. 15 is a schematic structural diagram of a user terminal according to an embodiment of the present invention (implicitly notifying that the authorization performed at the base station is unsuccessful);

16 is a schematic flowchart of a first embodiment of the present invention;

17 is a schematic flowchart of Embodiment 2 of the present invention;

18 is a schematic flowchart of a third embodiment of the present invention;

FIG. 19 is a schematic flowchart diagram of Embodiment 4 of the present invention.

Embodiments of the invention

It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

As shown in FIG. 2, an embodiment of the present invention provides a method for device to notify a device of D2D information, where the method includes:

S10. The user terminal sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried.

S11. After receiving the D2D resource configuration request message, the base station configures corresponding D2D discovery or D2D communication (abbreviated as D2D discovery/communication, or D2D discovery or communication) transmission resource for each application that is authorized for authentication.

Optionally, the user terminal sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried, including:

The user terminal sends a D2D resource configuration request message to the base station, where the D2D discovery/communication transmission resource configuration request list carries the information of the application of the user terminal; or

Optionally, the D2D discovery/communication transmission resource configuration request list includes:

An application identifier of an application that needs to perform D2D discovery/communication transmission or an index generated according to an application identifier; or

The application identifier of all applications or the index generated according to the application identifier, and an indication of whether each application needs to perform D2D discovery/communication transmission; or

Whether each application in all applications needs an indication of D2D discovery/communication transmission, the indication of each application being arranged in a default order.

Optionally, before the base station configures the corresponding D2D discovery/communication transmission resource for each application that the authorization verification passes, the method further includes the following steps:

The base station performs authorization authentication on each application of the user terminal according to the ProSe authorization information received from the mobility management entity MME.

As shown in FIG. 3, an embodiment of the present invention further provides a method for device to notify device D2D information, where the method includes:

S20. The user terminal sends a D2D resource release request message to the base station, where the information of the application of the user terminal is carried.

S21. After receiving the D2D resource release request message, the base station releases the D2D discovery/communication transmission resource allocated to the application.

The user terminal sends a D2D resource release request message to the base station, and the D2D discovery/communication transmission resource release request list carries the information of the application of the user terminal; or

Optionally, the D2D discovery/communication transmission resource release request list includes:

An application identifier of an application that needs to release the D2D discovery/communication transmission resource or an index generated according to the application identifier; or

An application identifier of all applications or an index generated according to the application identifier, and an indication of whether each application needs to perform D2D discovery/communication resource release; or

Whether each application in all applications needs to perform an indication of D2D discovery/communication resource release, and the indication of each application is arranged in a default order.

As shown in FIG. 4, an embodiment of the present invention further provides a method for device to notify device D2D information, where the method includes:

S30. The user terminal sends a D2D resource configuration request message to the base station, and identifies, by using the RRC transaction identifier cell in the D2D resource configuration request message, a request for D2D discovery/communication transmission resource configuration of different applications.

S31. After receiving the D2D resource configuration request message sent by the user equipment, the base station allocates different indexes for the application for requesting the D2D discovery/communication transmission resource by the user terminal through which the authorization verification passes.

Optionally, after receiving the D2D resource configuration request message sent by the user terminal, the base station further includes: configuring, by the user terminal that authorizes the authentication, the D2D discovery/communication transmission resource application configuration corresponding transmission resource.

Optionally, before the base station allocates different indexes to the application for requesting the D2D discovery/communication transmission resource by the user terminal through which the authorization is passed, the base station further includes:

Optionally, the method further includes the following steps:

S32, the user terminal sends a D2D resource release request message to the base station, where the identifier information of the application for requesting to release the D2D discovery/communication transmission resource is carried, where the identifier information of the application is an index allocated by the base station for the application;

S33. After receiving the D2D resource release request message, the base station releases the transmission resource configured for the corresponding application.

Optionally, the base station allocates different indexes to the application for requesting the D2D discovery/communication transmission resource by the user terminal through which the authorization verification passes, including:

The base station allocates different indexes to the application for requesting the D2D discovery/communication transmission resource by the user terminal through which the authorization verification passes through the RRC connection reconfiguration message.

As shown in FIG. 5, an embodiment of the present invention further provides a method for device to notify device D2D information, where the method includes:

S40: After the base station learns that the D2D discovery/communication transmission authorization of the user terminal is changed, the base station notifies the user terminal by using an air interface signaling message, where the change of the D2D discovery/communication transmission authorization includes changing from authorization to unauthorized.

S41. After receiving the air interface signaling message, the user terminal does not use or release resources allocated for the D2D discovery/communication transmission.

Optionally, the base station learns that the D2D discovery/communication transmission authorization of the user terminal changes, including:

The base station receives the UE context modification request message sent by the MME, and learns that the D2D discovery/communication transmission authorization of the user terminal changes.

Optionally, the base station notifies the user terminal by using the air interface signaling message, where the base station sends an RRC connection reconfiguration message to the user terminal, where the D2D discovery/communication transmission resource allocated for the user terminal is empty;

The base station configures the D2D discovery/communication transmission resource of the user terminal to need or (Need OR) by using an RRC connection reconfiguration message.

Optionally, the base station notifies the user terminal by using the air interface signaling message, where the base station sends an RRC connection reconfiguration message to the user terminal, and carries a new cause value or indication information indicating that the D2D discovery/communication transmission resource authorization is changed.

Optionally, after receiving the air interface signaling message, the user terminal does not use or release the resources allocated for the D2D discovery/communication transmission, including:

After the user terminal receives the RRC connection reconfiguration message, the D2D discovery/communication transmission resource of the user terminal is configured as Need OR, and the D2D discovery/communication transmission resource allocated for the user terminal carried in the RRC connection reconfiguration message is empty. And determining, in conjunction with the D2D discovery/communication transmission resource type, that resources allocated for the D2D discovery/communication transmission are no longer utilized or released.

After receiving the RRC connection reconfiguration message, the user terminal determines, according to the D2D discovery/communication transmission resource type, that the D2D discovery is no longer used or released according to the new cause value or the indication information carried in the RRC connection reconfiguration message. The resources allocated by the communication transmission.

As shown in FIG. 6, the embodiment of the present invention further provides a method for device to notify device D2D information, and the method includes:

S50. When the user terminal sends a D2D resource configuration request message to the base station, start a timer configured by the base station for the user terminal.

S51. If the timer expires, the D2D discovery/communication transmission resource allocated by the base station is not received, Then, it is determined whether the number of times of resending the D2D resource configuration request message reaches a threshold. If the threshold is not reached, the D2D resource configuration request message is resent to the base station, and the timer is restarted. If the threshold is reached, the D2D performed at the base station is considered. The authorization of the transmission/communication transmission is unsuccessful, and the D2D resource configuration request message is sent to the base station.

Optionally, after the user terminal relinquishes the D2D resource configuration request message sent to the base station, the method further includes: if the D2D discovery/communication transmission authorization authentication is obtained from the ProSe Function, sending the device-to-device D2D resource configuration request message to the base station. Start a timer configured by the base station for the user terminal.

As shown in FIG. 7, an embodiment of the present invention further provides a user terminal, including:

The first configuration module 60 is configured to configure information of the application;

The first sending module 61 is configured to send a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried.

Optionally, the first sending module 61 sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is included, including:

The first sending module 61 sends a D2D resource configuration request message to the base station, where the D2D discovery/communication transmission resource configuration request list carries the information of the application of the user terminal; or

The first sending module 61 sends a plurality of D2D resource configuration request messages to the base station, and each D2D resource configuration request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.

As shown in FIG. 8, an embodiment of the present invention further provides a base station, including:

The first receiving module 70 is configured to receive a D2D resource configuration request message sent by the user terminal, where the D2D resource configuration request message carries information about an application of the user terminal;

The first resource configuration module 71 is configured to configure a corresponding D2D discovery/communication transmission resource for each application passed by the authorization verification.

Optionally, the base station further includes:

The first authorization module 72 is configured to perform authorization authentication on each application of the user terminal according to the ProSe authorization information received from the mobility management entity MME.

As shown in FIG. 9, an embodiment of the present invention further provides a user terminal, including:

a second configuration module 80, configured to configure information of the application;

The second sending module 81 is configured to send a D2D resource release request message to the base station, where the information of the application of the user terminal is carried.

The second configuration module 80 in this example may be the same as the first configuration module 60 in the above embodiment.

Optionally, the second sending module 81 sends a D2D resource release request message to the base station, where the information of the application of the user terminal is included, including:

The second sending module 81 sends a D2D resource release request message to the base station, where the D2D discovery/communication transmission resource release request list carries the information of the application of the user terminal; or

The second sending module 81 sends a plurality of D2D resource release request messages to the base station, where each D2D resource release request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.

The application identifier of the application that needs to release the D2D discovery/communication transmission resource or according to the application identifier Corresponding to the generated index; or,

As shown in FIG. 10, an embodiment of the present invention further provides a base station, including:

The second receiving module 90 is configured to receive a D2D resource release request message sent by the user terminal, where the D2D resource release request message carries information about an application of the user terminal;

The first resource release module 91 is configured to release the D2D discovery/communication transmission resource allocated to the application.

As shown in FIG. 11, an embodiment of the present invention further provides a user terminal, including:

The third configuration module 100 is configured to configure an RRC transaction identification cell to identify a request for D2D discovery/communication transmission resource configuration of different applications;

The third sending module 101 is configured to send a D2D resource configuration request message to the base station, and identify, by using the RRC transaction identifier cell in the D2D resource configuration request message, a request for D2D discovery/communication transmission resource configuration of different applications.

Optionally, the third sending module 101 is further configured to send a D2D resource release request message to the base station, where the identifier information of the application that requests to release the D2D discovery/communication transmission resource is carried, where the identifier information of the application is the base station is the application. The assigned index.

As shown in FIG. 12, an embodiment of the present invention further provides a base station, including:

The third receiving module 110 is configured to receive a D2D resource configuration request message sent by the user terminal, where the D2D resource configuration request message carries information about an application of the user terminal;

The index allocating module 111 is configured to allocate different indexes for the application of the D2D discovery/communication transmission resource requested by the user terminal through which the authorization verification passes.

The third receiving module 110 in this example may be the same as the first receiving module 70 in the above embodiment.

Optionally, the base station further includes:

The second resource configuration module 112 is configured to configure a corresponding transmission resource for the application for requesting the D2D discovery/communication transmission resource by the user terminal through which the authorization verification passes;

Optionally, the base station further includes:

The second authorization module 113 is configured to perform authorization authentication on each application of the user terminal according to the ProSe authorization information received from the mobility management entity MME.

The second authorization module 113 in this example may be the same as the first authorization module 72 in the above embodiment.

Optionally, the index allocation module 111 allocates different indexes to the application for requesting the D2D discovery/communication transmission resource by the user terminal through which the authorization is passed, including: the index allocation module 111 requests the D2D for the user terminal through which the authorization verification is passed through the RRC connection reconfiguration message. Applications that discover/communicate transmission resources allocate different indexes.

Optionally, the base station further includes a second resource release module 114:

The third receiving module 110 is further configured to receive a D2D resource release request message sent by the user terminal, where the D2D resource release request message carries identifier information of an application requesting to release the D2D discovery/communication transmission resource, where the identifier information of the application is a base station An index assigned to the application;

The second resource release module 114 is configured to release the transmission resource configured for the corresponding application.

The second resource release module 114 in this example may be the same as the first resource release module 91 in the above embodiment.

As shown in FIG. 13, an embodiment of the present invention further provides a base station, including:

The information obtaining module 120 is configured to acquire information that the D2D discovery/communication transmission authorization of the user terminal changes;

The fourth sending module 121 is configured to notify the user terminal of the information that the D2D discovery/communication transmission authorization of the user terminal is changed by the air interface signaling message, where the D2D discovery/communication transmission is performed. Changes in rights include changes from authorization to non-authorization.

Optionally, the information acquiring module 120 acquires the information that the D2D discovery/communication transmission authorization of the user terminal is changed, and the information acquiring module 120 receives the UE context modification request message sent by the mobility management entity MME, and obtains the D2D discovery of the user terminal. Information that the communication transmission authorization has changed.

Optionally, the base station further includes a fourth configuration module 122:

The fourth configuration module 122 is configured to configure the D2D discovery/communication transmission resource of the user terminal as a Need OR by using an RRC connection reconfiguration message;

The fourth sending module 121 notifies the user terminal by using the air interface signaling message, and the fourth sending module 121 sends an RRC connection reconfiguration message to the user terminal, where the D2D discovery/communication transmission resource allocated for the user terminal is empty.

Optionally, the fourth sending module 121 notifies the user terminal by using the air interface signaling message, where the fourth sending module 121 sends an RRC connection reconfiguration message to the user terminal, and carries a new message indicating that the D2D discovery/communication transmission resource authorization is changed. Reason value or indication.

As shown in FIG. 14, an embodiment of the present invention further provides a user terminal, including:

The fourth receiving module 130 is configured to receive an air interface signaling message sent by the base station, where the air interface signaling message is set to notify the user terminal that the D2D discovery/communication transmission authorization is changed;

The resource processing module 131 is configured to no longer utilize or release resources allocated for the D2D discovery/communication transmission.

Optionally, the fourth receiving module 130 receives the air interface signaling message sent by the base station, where the fourth receiving module 130 receives the RRC connection reconfiguration message, where the D2D discovery/communication transmission resource allocated for the user terminal is empty;

The resource processing module 131 no longer utilizes or releases the resources allocated for the D2D discovery/communication transmission, including: the resource processing module 131 determines that the D2D discovery/communication transmission resource of the user terminal is configured as Need OR and the RRC connection reconfiguration The D2D discovery/communication transmission resource allocated for the user terminal carried in the message is empty, and the resource allocated for the D2D discovery/communication transmission is no longer utilized or released in combination with the D2D discovery/communication transmission resource type.

Optionally, the fourth receiving module 130 receives the air interface signaling message sent by the base station, where the fourth receiving module 130 receives the RRC connection reconfiguration message, where the new cause value or the indication information is carried;

The resource processing module 131 no longer utilizes or releases the resources allocated for the D2D discovery/communication transmission, and includes: the resource processing module 131 combines the D2D discovery according to the new cause value or indication information carried in the RRC connection reconfiguration message. The communication transmission resource type determines that the resources allocated for the D2D discovery/communication transmission are no longer utilized or released.

As shown in FIG. 15, an embodiment of the present invention further provides a user terminal, including:

The fifth sending module 140 is configured to: when the device-to-device D2D resource configuration request message is sent to the base station, start a timer configured by the base station for the user terminal;

The retransmission module 141 is configured to determine whether the number of times of resending the D2D resource configuration request message reaches a threshold when the D2D discovery/communication transmission resource allocated by the base station is not received when the timer expires, and if the threshold is not reached, The base station sends a D2D resource configuration request message and restarts the timer. If the threshold is reached, the authorization of the D2D transmission/communication transmission performed at the base station is considered unsuccessful, and the D2D resource configuration request message is sent to the base station.

Optionally, the retransmission module 141 is further configured to: after abandoning the sending of the D2D resource configuration request message to the base station, determine, if the D2D discovery/communication transmission authorization authentication is obtained from the ProSe Function, send the device-to-device D2D resource configuration to the base station. The request message starts a timer configured by the base station for the user terminal.

Embodiment 1

In this embodiment, multiple applications are running simultaneously on the D2D UE. In this embodiment, the following two scenarios are mainly considered: (1) the UE has entered the connected state, and the UE is ready to request the allocation of the D2D discovery transmission resource; (2) the UE is entering the connected state from the idle state, and the UE The purpose of entering the connection state is to perform D2D discovery transmission.

Fig. 16 is a flow chart showing the embodiment.

Step 201: The UE that obtains the D2D discovery transmission authorization from the ProSe Function sends a message to the base station to request the base station to allocate the transmission resource of the D2D discovery.

The D2D discovery transmission grants obtained from the ProSe Function may be for different applications in the UE, respectively. The message that the UE sends to the base station to request the base station to allocate the transmission resource of the D2D discovery may be an RRC Connection Request (RRCConnectionRequest) message, and may be an RRC Connection Setup Complete message (RRC Connection Setup Complete) message, or may be a UE Assistance Information message. For multiple applications, if the UE sends a message to the base station to request the base station to allocate D2D discovery transmission resources for multiple applications, the UE may carry one message in the message that is sent to the base station to request the base station to allocate D2D discovery transmission resources. The D2D discovers a list of transmission resource requests to indicate requests for D2D discovery transmission resource configuration for different applications. For example, the UE may carry an application identifier that needs to perform D2D discovery transmission or an index generated by the application identifier in the message requesting the base station to allocate the D2D discovery transmission resource. The UE may carry an identifier of each application and an indication of whether each application needs to perform D2D discovery transmission in the message requesting the base station to allocate the D2D discovery transmission resource. Assuming that the UE is applied by default, the message indicating whether the D2D discovery transmission needs to be performed by the corresponding application may be carried only in the message requesting the base station to allocate the D2D discovery transmission resource. For multiple applications, if the UE separately sends multiple messages to the base station to request the base station to allocate D2D discovery transmission resources for multiple applications, the UE may carry in each message sent to the base station to request the base station to allocate D2D discovery transmission resources. The application identifier or the application identifier of the corresponding application corresponds to the generated index.

Step 202: The base station performs authorization verification on the D2D discovery transmission according to the UE context acquired from the mobility management entity MME.

The MME notifies the base station of whether the UE authorizes the D2D discovery transmission by using the ProSe grant information carried in the Initial Context Setup Request message. The base station stores information about whether the UE is authorized to perform D2D discovery transmission, and is used to determine whether the UE is authorized to perform D2D discovery transmission when the UE initiates a D2D discovery transmission resource allocation request. ProSe-authorized cells can be granular in application, that is, can indicate the authorization status of different applications that want to perform D2D discovery.

Step 203: The authorization verification in step 202 is successful, and the base station configures the type 2 transmission resource to the UE by using dedicated signaling.

The dedicated signaling may be an RRC Connection Reconfiguration (RRCConnectionReconfiguration) message. The base station gives the UE the application that wants to perform D2D discovery transmission according to the information received in step 202. Do not configure the corresponding dedicated type 2 transmission resources.

Step 204: The UE performs D2D discovery transmission by using the type 2 resource allocated by the base station, corresponding to the application that wants to perform D2D discovery transmission.

Step 205: The UE sends a message to the base station to request the base station to release the transmission resource of the D2D discovery.

If some or some applications of the UE change for the authorization information of the D2D discovery transmission for some reason, that is, some or some applications perform D2D discovery transmission from the original authorization to the current unauthorized, then the UE is While releasing the type 2 transmission resources allocated by the base station for the application or the applications, a message is also sent to the base station to notify the base station to release the allocated type 2 transmission resources of the corresponding application. For multiple applications, if the UE sends a message to the base station to request the base station to release the D2D discovery transmission resource for multiple applications, then the message sent to the base station to request the base station to release the D2D transmission resource carries a D2D discovery transmission resource release. A list to indicate the release request for D2D discovery transport resources for different applications. For example, the UE may carry an application identifier that needs to release the D2D discovery transmission or an index generated by the application identifier in the message requesting the base station to release the D2D discovery transmission resource. The UE may carry an identifier of each application and an indication of whether each application needs to release the D2D discovery transmission in the message requesting the base station to release the D2D discovery transmission resource. The UE may also carry the indication list of whether the D2D discovery transmission needs to be released by the corresponding application only in the message requesting the base station to release the D2D discovery transmission resource. Specifically, which list form corresponds to step 201. For multiple applications, if the UE separately sends multiple messages to the base station to request the base station to release D2D discovery transmission resources for multiple applications, the UE may carry in each message sent to the base station to request the base station to release the D2D discovery transmission resource. The application identifier or the application identifier assigned to the application or the application in step 201 corresponds to the generated index.

Step 206: The base station releases the corresponding D2D discovery Type 2 transmission resource allocated to some or some applications according to the information carried in the message in step 205.

Embodiment 2

In this embodiment, multiple applications are running simultaneously on the D2D UE. For multiple applications, the UE sends a message to the base station to request the base station to allocate D2D discovery transmission resources for multiple applications accordingly. In this embodiment, the following two scenarios are mainly considered: (1) the UE has entered the connected state, and the UE is at this time. Preparing to request D2D to discover the allocation of transmission resources; (2) The UE is entering the connected state from the idle state, and the purpose of the UE entering the connected state is to perform D2D discovery transmission.

Figure 17 is a flow chart showing the present embodiment.

Step 301: The UE that obtains the D2D discovery transmission authorization from the ProSe Function sends a message to the base station to request the base station to allocate the transmission resource of the D2D discovery.

The D2D discovery transmission grants obtained from the ProSe Function may be for different applications in the UE, respectively. The message that the UE sends to the base station to request the base station to allocate the transmission resource of the D2D discovery may be an RRC connection request message, and may be an RRC connection setup complete message or a UE auxiliary information message. The UE identifies the request for D2D discovery transmission resource configuration of different applications by transmitting to the base station to request the base station to allocate the RRC transaction identifier (rrc-TransactionIdentifier) cell included in the RRC message of the D2D discovery transmission resource.

Step 302: The base station performs authorization verification on the D2D discovery transmission according to the UE context acquired from the MME.

The MME notifies the base station of whether the UE authorizes the D2D discovery transmission by using the ProSe grant cell carried in the initial context setup request message. The base station stores information about whether the UE is authorized to perform D2D discovery transmission, and is used to determine whether the UE is authorized to perform D2D discovery transmission when the UE initiates a D2D discovery transmission resource allocation request. ProSe-authorized cells can be granular in application, that is, can indicate the authorization status of different applications that want to perform D2D discovery.

Step 303: The authorization verification in step 302 is successful, and the base station configures the type 2 transmission resource to the UE by using dedicated signaling.

The dedicated signaling may be an RRC Connection Reconfiguration message. The application that the base station requests the UE to request the D2D discovery transmission resource separately configures the corresponding dedicated type 2 transmission resource, and allocates a different index to the application of the UE requesting the D2D discovery transmission resource.

Step 304: The UE performs D2D discovery transmission by using the type 2 resource allocated by the base station for the application that wants to perform D2D discovery transmission.

Step 305: The UE sends a message to the base station to request the base station to release the transmission resource of the D2D discovery.

If some or some applications of the UE change for the authorization information of the D2D discovery transmission for some reason, that is, the D2D discovery transmission of one or some applications is changed from the original authorization. If the UE does not authorize, the UE also sends a message to the base station to notify the base station to release the allocated type 2 transmission resource of the corresponding application while releasing the type 2 transmission resource allocated by the base station for the application or the applications. The message transmitted by the base station to the application or the applications in step 303 is carried in the message sent to the base station to request the base station to release the D2D transmission resource.

Step 306: The base station releases the corresponding D2D discovery Type 2 transmission resource allocated to some or some applications according to the index carried in the message in step 305.

Embodiment 3

In the present embodiment, whether or not the D2D discovery/communication information is authorized to be changed is changed. In this embodiment, the corresponding processing on the air interface is mainly introduced, so that the UE does not use the allocated resources for D2D discovery/communication transmission, or releases the allocated transmission resources for D2D discovery/communication.

Fig. 18 is a flow chart showing the present embodiment.

Step 401: The MME passes the information of the change of the authorization information to the base station by using a UE CONTEXT MODIFICATION REQUEST message, for example, the D2D discovery/communication is originally authorized, and the D2D discovery/communication is not authorized.

Step 402: After receiving the UE context modification request in step 401, the base station sends an RRC connection reconfiguration message to the UE.

The first method is to configure the transmission and reception resources of the D2D discovery and the D2D communication into Need OR in the RRC connection reconfiguration message. When the authorization information of the transmission or reception resource of the D2D discovery or communication is changed from the authorization to the unauthorized, the base station does not carry the transmission or reception resource of the D2D discovery or communication in the RRC connection reconfiguration message accordingly. The second method is to add a new cause value or indication information in the RRC connection reconfiguration message to indicate that the authorization information of the D2D discovery or communication transmission or reception resource is changed.

Step 403: The UE sends, according to the D2D discovery/communication, the transmission or receiving resource allocated to the user terminal, which is carried in the RRC connection reconfiguration message, or according to the indication that is carried in the RRC connection configuration message, the D2D discovery/communication is sent or received. The cause value or indication information of the authorization information change, combined with the Type 1/Type 2 selection of the received D2D discovery, or the Mode 1/Mode 2 selection of the D2D communication, thereby deciding that the allocated resource is no longer used for D2D discovery/communication transmission. Or receive, or The release is the allocated resource for D2D discovery/communication transmission.

Embodiment 4:

For the UE in the connected state, it is assumed that the base station performs the authorization verification of the D2D transmission/communication transmission according to the UE context acquired from the MME, which is unsuccessful. Then, the base station can notify the UE by sending a separate RRC message or by adding a cell in the RRC message, and the authorization of the D2D transmission/communication transmission performed at the base station is unsuccessful. This embodiment mainly adopts a method of not transmitting any signaling notification, that is, the information that the base station does not transmit the independent RRC message or does not add the cell in the RRC message to transmit the D2D transmission or the communication transmission is unsuccessful. Notifying the UE, the base station implicitly notifies the UE by simply not allocating the transmission resources of the D2D transmission/communication to the UE: the authorization of the D2D transmission/communication transmission performed at the base station is unsuccessful.

Fig. 19 is a flow chart showing the embodiment.

Step 501: The UE that obtains the D2D discovery/communication transmission authorization from the ProSe Function sends a message to the base station to request the base station to allocate the transmission resource of the D2D discovery/communication. The message that the UE sends to the base station to request the base station to allocate the transmission resource of the D2D discovery/communication may be an RRC connection request message, and may be an RRC connection setup complete message or a UE auxiliary information message. When the UE sends a message to the base station to request the base station to allocate the transmission resource of the D2D discovery/communication, the UE starts the configured timer;

Step 502: The base station performs authorization verification on the D2D discovery/communication transmission according to the UE context acquired from the MME.

Step 503: Before the timer started in step 501 is timed out, if the authorization verification succeeds, the UE receives the Type 2/Mode 1 transmission resource or the Type 1 / Mode 2 transmission resource pool configured by the base station through dedicated signaling, and ends;

Step 504: When the timer started in step 501 times out, if the authorization verification fails, the UE does not receive the Type 2/Mode 1 transmission resource or the Type 1 / Mode 2 transmission resource pool configured by the base station through dedicated signaling, and then falls back. Go to step 501, the UE resends the message to the base station to request the base station to allocate the transmission resource of the D2D discovery/communication, and starts the configured timer again;

Step 505: If the retransmission exceeds a certain number of times, that is, the UE does not receive when the timer expires. To the Type 2/Mode 1 transmission resource or the Type 1/Mode 2 transmission resource pool configured by the base station through dedicated signaling, and back to step 501 to send a message to the base station to request the base station to allocate the transmission resource of the D2D discovery/communication more than A certain number of times, the UE can learn that the authorization of the D2D discovery/communication transmission performed at the base station is unsuccessful, and automatically abandon the transmission of the message to the base station to request the base station to allocate the transmission resource of the D2D discovery/communication until it is re-obtained from the ProSe Function. D2D discovery/communication transmission authorization authentication.

The method for the D2D information notification, the user terminal, and the base station provided by the foregoing embodiment can implement the D2D discovery/communication transmission resource of the multiple applications by the user terminal, and release the transmission resource of the D2D discovery/communication of the corresponding application, and After the base station learns that the user terminal authorization is changed, the user terminal is notified by the air interface signaling message that the UE no longer utilizes or releases the transmission resource of the D2D discovery/communication, and the D2D discovery or communication transmission authorization performed by the base station is not performed in an implicit manner. Successful information is sent to the UE.

One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented by using a software function module. Formal realization. Embodiments of the invention are not limited to any specific form of combination of hardware and software.

Industrial applicability

Claims

A method for device to notify device D2D information, the method comprising:

The user terminal sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried;

After receiving the D2D resource configuration request message, the base station configures a corresponding D2D discovery or communication transmission resource for each application that is authorized to authenticate.
The method of claim 1, wherein: the user terminal sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried, including:

The user terminal sends a D2D resource configuration request message to the base station, and the information of the application of the user terminal is carried by the D2D discovery or the communication transmission resource configuration request list; or

The user terminal sends a plurality of D2D resource configuration request messages to the base station, and each D2D resource configuration request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.
The method of claim 2, wherein: the D2D discovery or communication transmission resource configuration request list comprises:

An application identifier of an application that needs to perform D2D discovery or communication transmission or an index generated according to an application identifier; or

The application identifier of all applications or the index generated according to the application identifier, and an indication of whether each application needs to perform D2D discovery or communication transmission; or

Whether each application in all applications requires an indication of D2D discovery or communication transmission, the indication of each application being arranged in a default order.
The method of claim 1, before the base station configures a corresponding D2D discovery or communication transmission resource for each application that is authorized to be authenticated, the method further includes:

The base station performs authorization authentication on each application of the user terminal according to the proximity service ProSe authorization information received from the mobility management entity MME.
The method of any of claims 1-4, wherein:

The D2D resource configuration request message is a radio resource control RRC connection request message or RRC A connection setup complete message or a UE assistance information message.
A method for device to notify device D2D information, the method comprising:

The user terminal sends a D2D resource release request message to the base station, where the information of the application of the user terminal is carried;

After receiving the D2D resource release request message, the base station releases the D2D discovery or communication transmission resource allocated to the application.
The method of claim 6, wherein: the user terminal sends a D2D resource release request message to the base station, where the information of the application of the user terminal is carried, including:

Transmitting, by the user terminal, a D2D resource release request message to the base station, where the information of the application of the user terminal is carried by the D2D discovery or the communication transmission resource release request list; or

The user terminal sends a plurality of D2D resource release request messages to the base station, and each D2D resource release request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.
The method of claim 7 wherein: said D2D discovery or communication transmission resource release request list comprises:

An application identifier of an application that needs to release a D2D discovery or communication transmission resource or an index generated according to an application identifier; or

An application identifier of all applications or an index generated according to the application identifier, and an indication of whether each application needs to perform D2D discovery or release of communication resources; or

Whether each application in all applications needs to perform an indication of D2D discovery or communication resource release, and the indication of each application is arranged in a default order.
A method for device to notify device D2D information, the method comprising:

The user terminal sends a D2D resource configuration request message to the base station, and the RRC transaction identification information element in the D2D resource configuration request message is used to identify a request for D2D discovery or communication transmission resource configuration of different applications;

After receiving the D2D resource configuration request message sent by the user terminal, the base station allocates different indexes for the application for requesting the D2D discovery or the communication transmission resource by the user terminal through which the authorization verification passes.
The method of claim 9, after the base station receives the D2D resource configuration request message sent by the user terminal, the method further includes:

The base station configures a corresponding transmission resource for an application that requests the user terminal through which the authentication is authenticated to request the D2D discovery or the communication transmission resource.
The method of claim 9, wherein the method further comprises: before the base station assigns a different index to the application for requesting the D2D discovery or the communication transmission resource by the user terminal through which the authentication is passed, the method further includes:

The base station performs authorization authentication on each application of the user terminal according to the proximity service ProSe authorization information received from the mobility management entity MME.
The method of claim 10, the method further comprising:

The user terminal sends a D2D resource release request message to the base station, where the identifier information of the application that requests to release the D2D discovery or the communication transmission resource is carried, and the identifier information of the application is an index allocated by the base station to the application;

After receiving the D2D resource release request message, the base station releases the transmission resource configured for the corresponding application.
The method of claim 9 wherein:

The D2D resource configuration request message is an RRC connection request message or an RRC connection setup complete message or a UE auxiliary information message.
The method of claim 9 wherein:

The base station allocates different indexes to the application for requesting the D2D discovery or the communication transmission resource by the user terminal that is authorized to authenticate, including: the base station requests the D2D discovery or the communication transmission resource for the user terminal through which the authorization verification is passed through the RRC connection reconfiguration message. The application assigns different indexes.
A method for device to notify device D2D information, the method comprising:

After the base station learns that the D2D discovery or the communication transmission authorization of the user terminal is changed, the user terminal is notified by the air interface signaling message that the D2D discovery or the communication transmission authorization changes from the authorization to the unauthorized authorization;

After receiving the air interface signaling message, the user terminal no longer utilizes or releases resources allocated for the D2D discovery or communication transmission.
The method of claim 15, wherein: the base station learns that the D2D discovery or communication transmission authorization of the user terminal changes, including:

The base station receives the UE context modification request message sent by the mobility management entity MME, and learns that the D2D discovery or the communication transmission authorization of the user terminal changes.
The method of claim 15 wherein:

The base station notifies the user terminal by using an air interface signaling message, including:

Sending, by the base station, an RRC connection reconfiguration message to the user terminal, where the D2D discovery or communication transmission resource allocated for the user terminal is empty;

The method further includes: the base station configuring the D2D discovery or communication transmission resource of the user terminal to a required or Need OR by using an RRC connection reconfiguration message.
The method of claim 15, wherein: the base station notifies the user terminal by the air interface signaling message, including:

The base station sends an RRC connection reconfiguration message to the user terminal, carrying a new cause value or indication information indicating that the D2D discovery or the communication transmission resource authorization is changed.
The method of claim 17, wherein the user terminal does not utilize or release resources allocated for the D2D discovery or communication transmission after receiving the air interface signaling message, including:

After receiving the RRC connection reconfiguration message, the user terminal, such as the D2D discovery or communication transmission resource of the user terminal, is configured as Need OR, and the D2D discovery or communication transmission resource allocated for the user terminal carried in the RRC connection reconfiguration message If it is empty, it is determined in conjunction with the D2D discovery or communication transmission resource type to no longer utilize or release the resources allocated for the D2D discovery or communication transmission.
The method of claim 18, wherein the user terminal does not utilize or release resources allocated for the D2D discovery or communication transmission after receiving the air interface signaling message, including:

After receiving the RRC connection reconfiguration message, the user terminal determines, according to the D2D discovery or the communication transmission resource type, that the D2D is no longer used or released as the D2D according to the new cause value or the indication information carried in the RRC connection reconfiguration message. Discovery or communication transfers allocated resources.
A method for device to notify device D2D information, the method comprising:

When the user terminal sends a D2D resource configuration request message to the base station, the base station is activated to configure the user terminal. Set timer

If the D2D discovery or communication transmission resource allocated by the base station is not received, the number of times of resending the D2D resource configuration request message is determined to be a threshold. If the threshold is not reached, the D2D resource configuration request message is resent to the base station. And restarting the timer. If the threshold is reached, it is considered that the authorization of the D2D transmission or the communication transmission performed at the base station is unsuccessful, and the D2D resource configuration request message is sent to the base station.
The method of claim 21, after the user terminal abandons sending the D2D resource configuration request message to the base station, the method further comprises: re-acquiring D2D discovery or communication transmission authorization authentication from the proximity service-based function ProSeFunction, Then, the device sends a device-to-device D2D resource configuration request message to the base station, and starts a timer configured by the base station for the user terminal.
A user terminal comprising:

a first configuration module, configured to configure information of the application;

The first sending module is configured to send a device-to-device D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried.
The user terminal of claim 23 wherein:

The first sending module sends a D2D resource configuration request message to the base station, where the information of the application of the user terminal is included, including:

Transmitting, by the first sending module, a D2D resource configuration request message to the base station, where the information of the application of the user terminal is carried by the D2D discovery or the communication transmission resource configuration request list; or

The first sending module sends a plurality of D2D resource configuration request messages to the base station, and each D2D resource configuration request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.
The user terminal of claim 23, wherein: the D2D discovery or communication transmission resource configuration request list comprises:

An application identifier of an application that needs to perform D2D discovery or communication transmission or an index generated according to an application identifier; or

Application ID of all applications or an index generated according to the application identifier, and each application Whether an indication of D2D discovery or communication transmission is required; or

Whether each application in all applications requires an indication of D2D discovery or communication transmission, the indication of each application being arranged in a default order.
The user terminal of claim 23 wherein:

The D2D resource configuration request message is a radio resource control RRC connection request message or an RRC connection setup complete message or a UE auxiliary information message.
A base station comprising:

a first receiving module, configured to receive a device-to-device D2D resource configuration request message sent by the user terminal, where the D2D resource configuration request message carries information about an application of the user terminal;

The first resource configuration module is configured to configure a corresponding D2D discovery or communication transmission resource for each application passed by the authorization verification.
The base station of claim 27, the base station further comprising:

And a first authorization module, configured to perform authorization authentication on each application of the user terminal according to the proximity service ProSe authorization information received from the mobility management entity MME.
A user terminal comprising:

a second configuration module configured to configure application information;

The second sending module is configured to send a device-to-device D2D resource release request message to the base station, where the information of the application of the user terminal is carried.
A user terminal as claimed in claim 29, wherein:

The second sending module sends a D2D resource release request message to the base station, where the information of the application of the user terminal is included, including:

The second sending module sends a D2D resource release request message to the base station, where the D2D discovery or the communication transmission resource release request list carries the information of the application of the user terminal; or

The second sending module sends a plurality of D2D resource release request messages to the base station, and each D2D resource release request message carries an application identifier of the corresponding application or an index corresponding to the application identifier.
The user terminal of claim 30, wherein: the D2D discovery or communication transmission resource release request list comprises:

An application identifier of an application that needs to release a D2D discovery or communication transmission resource or an index generated according to an application identifier; or

An application identifier of all applications or an index generated according to the application identifier, and an indication of whether each application needs to perform D2D discovery or release of communication resources; or

Whether each application in all applications needs to perform an indication of D2D discovery or communication resource release, and the indication of each application is arranged in a default order.
A base station comprising:

a second receiving module, configured to receive a device-to-device D2D resource release request message sent by the user terminal, where the D2D resource release request message carries information about an application of the user terminal;

The first resource release module is configured to release the D2D discovery or communication transmission resource allocated to the application.
A user terminal comprising:

a third configuration module, configured to configure a radio resource control RRC transaction identifier cell to identify a request for device D2D discovery or communication transmission resource configuration of different applications;

The third sending module is configured to send a D2D resource configuration request message to the base station, and identify, by using the RRC transaction identifier cell in the D2D resource configuration request message, a request for D2D discovery or communication transmission resource configuration of different applications.
A user terminal as claimed in claim 33,

The third sending module is further configured to send a D2D resource release request message to the base station, where the identifier information of the application that requests to release the D2D discovery or the communication transmission resource is carried, where the identifier information of the application is an index allocated by the base station to the application. .
A user terminal as claimed in claim 33, wherein:

The D2D resource configuration request message is an RRC connection request message or an RRC connection setup complete message or a UE auxiliary information message.
A base station comprising:

a third receiving module, configured to receive a D2D resource configuration request message sent by the user terminal, where the D2D resource configuration request message carries information about an application of the user terminal;

The index allocation module is configured to allocate different indexes for the application for requesting the D2D discovery or communication transmission resource by the user terminal through which the authorization verification passes.
The base station of claim 36, the base station further comprising:

The second resource configuration module is configured to configure a corresponding transmission resource for an application that requests the D2D discovery or communication transmission resource for the user terminal through which the authorization verification passes.
The base station according to claim 36 or 37, the base station further comprising:

The second authorization module is configured to perform authorization authentication on each application of the user terminal according to the proximity service ProSe authorization information received from the mobility management entity MME.
The base station according to claim 36, wherein: said index allocation module allocates different indexes for an application for requesting D2D discovery or communication transmission resources by a user terminal through which authentication is authorized, including:

The index allocation module allocates different indexes to the application for requesting D2D discovery or communication transmission resources by the user terminal through which the authorization verification passes through the RRC connection reconfiguration message.
The base station according to claim 37, the base station further comprising a second resource release module;

The third receiving module is further configured to receive a D2D resource release request message sent by the user terminal, where the D2D resource release request message carries identifier information of an application that requests to release the D2D discovery or communication transmission resource, where the identifier information of the application is An index assigned by the base station to the application;

The second resource release module is configured to release a transmission resource configured for the corresponding application.
A base station comprising:

An information acquiring module, configured to acquire information that a D2D discovery or a communication transmission authorization of the user terminal is changed;

The fourth sending module is configured to notify the user terminal of the information that the D2D discovery or the communication transmission authorization of the user terminal is changed by the air interface signaling message, where the D2D discovery or the communication transmission authorization changes from the authorization to the unauthorized.
The base station of claim 41 wherein:

The information acquisition module acquires a change in D2D discovery or communication transmission authorization of the user terminal. Information, including:

The information acquiring module receives the UE context modification request message sent by the mobility management entity MME, and obtains information about the D2D discovery or the communication transmission authorization of the user terminal.
The base station of claim 41, the base station further comprising a fourth configuration module;

The fourth configuration module is configured to configure, by using an RRC connection reconfiguration message, the D2D discovery or communication transmission resource of the user terminal to be required or Need OR;

The fourth sending module notifies the user terminal by using the air interface signaling message, and the fourth sending module sends an RRC connection reconfiguration message to the user terminal, where the D2D discovery or communication transmission resource allocated for the user terminal is empty.
The base station according to claim 41, wherein

The fourth sending module notifies the user terminal by using the air interface signaling message, and the fourth sending module sends an RRC connection reconfiguration message to the user terminal, carrying a new reason for indicating that the D2D discovery or the communication transmission resource authorization is changed. Value or indication.
A user terminal comprising:

a fourth receiving module, configured to receive an air interface signaling message sent by the base station, where the air interface signaling message is set to notify the user terminal that the D2D discovery or the communication transmission authorization is changed;

A resource processing module is configured to no longer utilize or release resources allocated for the D2D discovery or communication transmission.
A user terminal according to claim 45, wherein

The fourth receiving module receives the air interface signaling message sent by the base station, where the fourth receiving module receives the RRC connection reconfiguration message, where the D2D discovery or communication transmission resource allocated for the user terminal is empty;

The resource processing module no longer utilizes or releases resources allocated for the D2D discovery or communication transmission, including: the resource processing module determines that the D2D discovery or communication transmission resource of the user terminal is configured to be required or Need OR The D2D discovery or communication transmission resource allocated for the user terminal carried in the RRC connection reconfiguration message is empty, and the resource allocated for the D2D discovery or communication transmission is no longer utilized or released in combination with the D2D discovery or communication transmission resource type.
A user terminal according to claim 45, wherein

The fourth receiving module receives the air interface signaling message sent by the base station, where the fourth receiving module receives the RRC connection reconfiguration message, where the new cause value or the indication information is carried;

The resource processing module no longer utilizes or releases the resource allocated for the D2D discovery or communication transmission, and the method includes: the resource processing module combines the D2D according to the new cause value or the indication information carried in the RRC connection reconfiguration message. The discovery or communication transmission resource type determines that resources allocated for the D2D discovery or communication transmission are no longer utilized or released.
A user terminal comprising:

a fifth sending module, configured to: when the device sends a device-to-device D2D resource configuration request message to the base station, start a timer configured by the base station for the user terminal;

And the retransmission module is configured to: if the D2D discovery or communication transmission resource allocated by the base station is not received when the timer expires, determine whether the number of times of resending the D2D resource configuration request message reaches a threshold, and if the threshold is not reached, re-send to the base station The D2D resource configuration request message is sent, and the timer is restarted. If the threshold is reached, the authorization of the D2D transmission or the communication transmission performed at the base station is considered unsuccessful, and the D2D resource configuration request message is sent to the base station.
A user terminal as claimed in claim 48,

The retransmission module is further configured to: after abandoning the sending of the D2D resource configuration request message to the base station, determine, if the D2D discovery or the communication transmission authorization authentication is obtained from the ProSe Function based on the proximity service, send the device to the device D2D to the base station. The resource configuration request message starts a timer configured by the base station for the user terminal.