WO2018076563A1

WO2018076563A1 - Resource allocation method and resource allocation device for d2d communication, base station and terminal

Info

Publication number: WO2018076563A1
Application number: PCT/CN2017/072621
Authority: WO
Inventors: 雷艺学; 张云飞; 李明菊
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-10-31
Filing date: 2017-01-25
Publication date: 2018-05-03
Also published as: CN106454710A; CN106454710B

Abstract

Provided in the present invention are a resource allocation method and resource allocation device for D2D communication, a base station and a terminal. The resource allocation method for D2D communication comprises: a base station supporting an unauthorized frequency band obtaining resource information on frequency bands supported by other base stations that can be controlled by same; allocating a communication resource for D2D transmission according to resource information on the frequency band supported by the base station and the resource information on the frequency bands supported by the other base stations, wherein the communication resource for D2D transmission at least contains a communication resource on the unauthorized frequency band; and notifying a D2D communication terminal of the allocated communication resource for D2D transmission. According to the technical solution of the present invention, a D2D communication terminal can carry out D2D communication by means of a communication resource on an unauthorized frequency band, thereby realizing application of a D2D communication mechanism to the unauthorized frequency band.

Description

Resource configuration method and resource configuration device, base station and terminal for D2D communication

This application claims priority to Chinese Patent Application No. 201610933368.2, entitled "Resource allocation method for D2D communication and resource allocation device, base station and terminal", which is filed on October 31, 2016. The entire contents are incorporated herein by reference.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a resource configuration method for D2D communication, a resource configuration device for D2D communication, a base station, and a terminal.

Background technique

D2D (Device-to-Device) communication is a technology for direct communication between terminals introduced by 3GPP Release-12. The sub-link is introduced on the basis of the traditional uplink and downlink communication link (ie, uplink/downlink). The concept of sidelink). D2D communication technology has completed the standardization of 3GPP Rel-12 and Rel-13, and 3GPP is currently standardizing Rel-14. D2D communication technology in Release 12 and Rel-13 is mainly aimed at public security scenarios, starting with Rel-14 to standardize for business scenarios. In addition, the D2D technology of Rel-12 to Rel-14 is mainly for the licensed frequency band, the D2D communication related base station control signaling, the inter-terminal synchronization signal (Sidelink Synchronization Signaling, SLSS for short), and the scheduling allocation signaling (Scheduling Assignment, SA for short). Both the transmission of D2D data and the transmission of D2D data do not need to consider interference from unlicensed bands.

The D2D communication technology based on the licensed frequency band, although capable of providing direct communication between terminals, does not occupy the uplink and downlink transmission resources of the macro base station. However, if the D2D communication technology is limited to the licensed frequency band, there are large industrialization and commercial deployment barriers. In a commercial deployment scenario, if the D2D communication uses the same frequency band as the cellular network deployed by the operator, the operator will The interference that D2D communication can bring is considered a potential threat. On the other hand, D2D communication bypasses the traffic of some operators, resulting in the operator's revenue reduction. For operators who pay more attention to traffic management, D2D communication technology deploys a lack of mature business model in the licensed frequency band. Therefore, the expansion of D2D communication technology to the unlicensed spectrum has become a technical choice to overcome the commercial application of D2D communication technology.

The existing D2D communication technology does not support D2D transmission in an unlicensed frequency band. When the D2D terminal completes mutual discovery, it transmits on the resources of the licensed frequency band, and does not support D2D transmission in the unlicensed frequency band. Therefore, the prior art cannot utilize the 5G new LTE transmission technology (ie, on the new unlicensed frequency band) for D2D data transmission.

Therefore, how to ensure the application of D2D communication technology on the unlicensed spectrum becomes a technical problem to be solved.

Summary of the invention

The invention is based on at least one of the above technical problems, and proposes a new resource configuration scheme for D2D communication, so that the D2D communication terminal can perform D2D communication through communication resources on the unlicensed frequency band, and realizes the D2D communication mechanism. Application on unlicensed bands.

In view of this, according to the first aspect of the present invention, a resource configuration method for D2D communication is provided, which includes: supporting a base station of an unlicensed frequency band to acquire resource information on a frequency band supported by other base stations that it can control; The resource information on the frequency band supported by the base station and the resource information on the frequency band supported by the other base station are configured to perform communication resources for performing D2D transmission, where the communication resource for performing D2D transmission includes at least an unlicensed frequency band. Communication resources; notifying the D2D communication terminal of the configured communication resource for performing D2D transmission.

In this technical solution, a base station supporting an unlicensed frequency band is configured to perform D2D by using resource information on a frequency band supported by itself and resource information on a frequency band supported by another base station (such as a secondary base station of the primary base station) that it can control. The transmitted communication resources enable the base station supporting the unlicensed frequency band to comprehensively analyze the communication resources between the multiple base stations (such as the communication resources of the unlicensed frequency band and the communication resources of the licensed frequency band) to configure the communication resources for D2D transmission to the D2D communication terminal. The configured communication resource for D2D transmission includes at least communication resources on the unlicensed frequency band, that is, the communication resources on the licensed frequency band may also be included, thereby enabling the D2D communication terminal. The D2D communication can be performed through the communication resources on the unlicensed frequency band, and the application of the D2D communication mechanism on the unlicensed frequency band is realized.

According to a second aspect of the present invention, a resource configuration method for D2D communication is further provided, comprising: receiving a communication resource for performing D2D transmission notified by a base station supporting an unlicensed frequency band; performing, according to the communication resource for performing D2D transmission D2D communication; wherein the communication resource for performing D2D transmission is configured by the base station according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by other base stations that the base station can control, and The communication resource for performing D2D transmission includes at least communication resources on an unlicensed frequency band.

In this technical solution, the communication resource for performing D2D transmission is a frequency band supported by a base station supporting an unlicensed frequency band according to resource information supported by the frequency band supported by the base station and other base stations (such as a secondary base station of the primary base station) that can be controlled by the base station supporting the unlicensed frequency band. The resource information is configured, so the base station supporting the unlicensed frequency band can comprehensively analyze the communication resources between the multiple base stations (such as the communication resources of the unlicensed frequency band and the communication resources of the licensed frequency band) to configure the D2D transmission to the D2D communication terminal. Communication resources, and the configured communication resources for D2D transmission include at least communication resources on the unlicensed frequency band, that is, may also include communication resources on the licensed frequency band, thereby enabling the D2D communication terminal to pass the communication resources on the unlicensed frequency band. D2D communication is implemented, and the application of the D2D communication mechanism in the unlicensed frequency band is realized.

According to the third aspect of the present invention, a resource configuration apparatus for D2D communication is further provided, including: a first acquiring unit, configured to acquire resources on a frequency band supported by other base stations that can be controlled by a base station supporting an unlicensed frequency band. And a configuration unit, configured to configure, according to the resource information on the frequency band supported by the base station and the resource information on the frequency band supported by the other base station, the communication resource for performing D2D transmission, where the D2D transmission is performed. The communication resource includes at least a communication resource on the unlicensed frequency band, and the notification unit is configured to notify the D2D communication terminal of the communication resource for performing D2D transmission configured by the configuration unit.

In this technical solution, a base station supporting an unlicensed frequency band is configured to perform D2D by using resource information on a frequency band supported by itself and resource information on a frequency band supported by another base station (such as a secondary base station of the primary base station) that it can control. The transmitted communication resources enable the base station supporting the unlicensed frequency band to comprehensively analyze the communication resources between the multiple base stations (such as the communication resources of the unlicensed frequency band and the communication resources of the licensed frequency band) to configure the D2D communication communication to the D2D communication terminal. The communication resource configured for the D2D transmission includes at least the communication resource on the unlicensed frequency band, that is, the communication resource on the licensed frequency band may be included, thereby enabling the D2D communication terminal to perform D2D through the communication resource on the unlicensed frequency band. Communication, the application of the D2D communication mechanism in the unlicensed frequency band is realized.

According to a fourth aspect of the present invention, a resource configuration apparatus for D2D communication is further provided, comprising: a receiving unit, configured to receive a communication resource for D2D transmission notified by a base station supporting an unlicensed frequency band; and a communication unit, configured to: Performing D2D communication based on the communication resource for performing D2D transmission; wherein the communication resource for performing D2D transmission is supported by the base station according to resource information on a frequency band supported by the base station and other base stations that the base station can control The resource information on the frequency band is configured, and the communication resource for performing D2D transmission includes at least communication resources on the unlicensed frequency band.

According to a fifth aspect of the present invention, a base station is further provided, comprising: the resource configuration apparatus for D2D communication according to the above third aspect.

According to a sixth aspect of the present invention, a terminal is further provided, comprising: the resource configuration apparatus for D2D communication as described in the above fourth aspect.

Through the above technical solution, the D2D communication terminal can perform D2D communication through communication resources on the unlicensed frequency band, and the application of the D2D communication mechanism on the unlicensed frequency band is realized.

DRAWINGS

FIG. 1 shows a resource configuration for D2D communication according to a first embodiment of the present invention. Schematic diagram of the process;

2 is a schematic block diagram of a resource configuration apparatus for D2D communication according to a first embodiment of the present invention;

Figure 3 shows a schematic block diagram of a base station in accordance with a first embodiment of the present invention;

4 is a flow chart showing a resource configuration method for D2D communication according to a second embodiment of the present invention;

FIG. 5 is a schematic block diagram of a resource configuration apparatus for D2D communication according to a second embodiment of the present invention; FIG.

Figure 6 shows a schematic block diagram of a terminal in accordance with a first embodiment of the present invention;

Figure 7 shows a schematic diagram of a communication scenario in accordance with an embodiment of the present invention;

8 is a flow chart showing a resource configuration and communication method in D2D communication according to an embodiment of the present invention;

Figure 9 shows a schematic block diagram of a base station in accordance with a second embodiment of the present invention;

Figure 10 shows a schematic block diagram of a terminal in accordance with a second embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a full understanding of the invention, but the invention may be practiced otherwise than as described herein. Limitations of the embodiments.

FIG. 1 is a flow chart showing a resource configuration method for D2D communication according to a first embodiment of the present invention.

As shown in FIG. 1, a resource configuration method for D2D communication according to a first embodiment of the present invention includes:

Step S10: The base station supporting the unlicensed frequency band acquires resource information on a frequency band supported by other base stations that it can control.

In an embodiment of the present invention, step S10 specifically includes: passing an interface between base stations The signaling acquires resource information on a frequency band supported by the other base stations. For example, the resource information on the frequency bands supported by other base stations can be obtained through an X2-like interface.

Step S12, configuring communication resources for performing D2D transmission according to the resource information on the frequency band supported by the base station and the resource information on the frequency band supported by the other base station, where the communication resource for performing D2D transmission includes at least Communication resources on unlicensed bands.

In an embodiment of the present invention, the step S12 includes: configuring the D2D transmission according to resource usage on a frequency band supported by the base station and resource usage on a frequency band supported by the other base station. Communication resources.

In the case that the frequency band supported by the base station includes the unlicensed frequency band, the base station obtains the resource usage on the unlicensed frequency band supported by the base station, and specifically has the following two schemes:

Option One:

Receiving a listening report for the unlicensed frequency band resource reported by the terminal served by the base station, and determining, according to the interception report, resource usage on the unlicensed frequency band supported by the base station.

Option II:

Obtaining a data transmission status (such as a delay condition, a packet loss rate, and the like) on an unlicensed frequency band supported by the base station, and determining, according to the data transmission status, resource usage on an unlicensed frequency band supported by the base station.

In the case that the frequency band supported by the base station includes the licensed frequency band, the base station obtains the resource usage on the licensed frequency band supported by the base station, specifically: determining the licensed frequency band supported by the base station according to the resource scheduling situation of the base station in the licensed frequency band. Resource usage on.

The resource configuration method for D2D communication shown in FIG. 1 further includes:

Step S14, notifying the configured communication resource for D2D transmission to the D2D communication terminal.

In an embodiment of the present invention, step S14 specifically includes: notifying, by the system information or the dedicated signaling, the configured D2D transmission communication resource to the D2D communication terminal on the licensed frequency band or on the unlicensed frequency band.

Further, when the configured D2D transmission communication resource is notified to the D2D communication terminal on the licensed frequency band, the base station can configure the unlicensed frequency band to the D2D communication terminal by means of cross-carrier scheduling Communication resources on.

In the technical solution, at least the communication resource configured for performing D2D transmission includes at least The communication resources on the unlicensed frequency band, so if the configured communication resources for D2D transmission are notified to the D2D communication terminal on the licensed frequency band, the base station can support the function of cross-carrier scheduling.

In the technical solution shown in FIG. 1, a base station supporting an unlicensed frequency band passes resource information on a frequency band supported by a frequency band supported by itself and a base station supported by another base station (such as a secondary base station of the primary base station) that it can control. To configure communication resources for D2D transmission, so that base stations supporting unlicensed frequency bands can comprehensively analyze communication resources between multiple base stations (such as communication resources of unlicensed frequency bands and communication resources of licensed frequency bands) to configure D2D to D2D communication terminals. The communication resource for transmission, the configured communication resource for performing D2D transmission includes at least the communication resource on the unlicensed frequency band, that is, the communication resource on the licensed frequency band may be included, thereby enabling the D2D communication terminal to pass the communication resource on the unlicensed frequency band. To perform D2D communication, the application of the D2D communication mechanism in the unlicensed frequency band is realized.

2 is a schematic block diagram of a resource configuration apparatus for D2D communication in accordance with a first embodiment of the present invention.

As shown in FIG. 2, the resource configuration apparatus 200 for D2D communication according to the first embodiment of the present invention includes: a first acquisition unit 202, a configuration unit 204, and a notification unit 206.

The first obtaining unit 202 is configured to acquire resource information on a frequency band supported by other base stations that can be controlled by the base station that supports the unlicensed frequency band, and the configuration unit 204 is configured to use the resource information and the frequency information on the frequency band supported by the base station itself. The resource information on the frequency band supported by the other base station is configured to configure the communication resource for D2D transmission, where the communication resource for performing the D2D transmission includes at least the communication resource on the unlicensed frequency band; the notification unit 206 is configured to use the configuration unit The communication resource for performing D2D transmission configured by 204 is notified to the D2D communication terminal.

In this technical solution, a base station supporting an unlicensed frequency band is configured to perform D2D by using resource information on a frequency band supported by itself and resource information on a frequency band supported by another base station (such as a secondary base station of the primary base station) that it can control. The transmitted communication resources enable the base station supporting the unlicensed frequency band to comprehensively analyze the communication resources between the multiple base stations (such as the communication resources of the unlicensed frequency band and the communication resources of the licensed frequency band) to configure the communication resources for D2D transmission to the D2D communication terminal. The configured communication resource for D2D transmission includes at least communication resources on the unlicensed frequency band, that is, the communication resources on the licensed frequency band may be included, thereby enabling the D2D communication terminal to perform D2D communication through communication resources on the unlicensed frequency band. , realized the D2D communication machine Application in unlicensed bands.

In the above technical solution, the first acquiring unit 202 is specifically configured to: acquire resource information on a frequency band supported by the other base station by using interface signaling between the base stations.

Specifically, for example, resource information on a frequency band supported by other base stations can be obtained through an X2-like interface.

In any one of the foregoing technical solutions, the configuration unit 204 is specifically configured to: configure, according to resource usage on a frequency band supported by the base station and resource usage on a frequency band supported by the other base station, The communication resource for performing D2D transmission.

In this technical solution, the communication resource for performing D2D transmission is configured according to resource usage on a frequency band supported by the base station itself and resource usage on a frequency band supported by other base stations, so that the D2D communication terminal can be configured to be unused. And suitable for resources of D2D communication.

Further, in a case that the frequency band supported by the base station itself includes an unlicensed frequency band, the resource configuration apparatus 200 further includes:

The receiving unit 208 is configured to receive a listening report for the unlicensed frequency band resource reported by the terminal served by the base station, and determine, according to the interception report, resource usage on the unlicensed frequency band supported by the base station; and / or

The second obtaining unit 210 is configured to acquire a data transmission state on an unlicensed frequency band supported by the base station, and determine, according to the data transmission state, resource usage on an unlicensed frequency band supported by the base station.

In this technical solution, since there may be other communication devices that are not controlled by the base station on the unlicensed frequency band, it is necessary to determine the resource usage on the unlicensed frequency band supported by the base station itself in an indirect manner. Specifically, it may be determined according to a listening report of the unlicensed frequency band resource reported by the terminal served by the base station, or according to a data transmission state (such as a delay condition, a packet loss rate, and the like) on the unlicensed frequency band.

Further, in a case that the frequency band supported by the base station itself includes a licensed frequency band, the resource configuration apparatus 200 further includes:

The determining unit 212 is configured to determine, according to the resource scheduling situation of the base station on the licensed frequency band, resource usage on the licensed frequency band supported by the base station.

In any of the above technical solutions, the notification unit 206 is specifically configured to: pass The system information or the dedicated signaling notifies the D2D communication terminal of the configured communication resource for D2D transmission on the licensed frequency band or on the unlicensed frequency band.

Further, when the notification unit 206 notifies the configured D2D transmission communication resource to the D2D communication terminal on the licensed frequency band, the base station can communicate to the D2D by means of cross-carrier scheduling. The terminal configures communication resources on the unlicensed band.

In this technical solution, since the configured communication resource for D2D transmission includes at least the communication resource on the unlicensed frequency band, if the configured communication resource for D2D transmission is notified to the D2D communication terminal on the licensed frequency band, it is required The base station is capable of supporting cross-carrier scheduling functions.

Fig. 3 shows a schematic block diagram of a base station according to a first embodiment of the present invention.

As shown in FIG. 3, a base station 300 according to a first embodiment of the present invention includes: a resource configuration apparatus 200 for D2D communication as shown in FIG. 2.

FIG. 4 is a flow chart showing a resource configuration method for D2D communication according to a second embodiment of the present invention.

As shown in FIG. 4, a resource configuration method for D2D communication according to a second embodiment of the present invention includes:

Step S40: Receive communication resources for D2D transmission notified by the base station supporting the unlicensed frequency band. The communication resource for performing D2D transmission is configured by the base station according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by other base stations that the base station can control, and the D2D transmission is performed. The communication resource contains at least communication resources on the unlicensed band.

Step S42, performing D2D communication based on the communication resource for performing D2D transmission.

In this technical solution, the communication resource for performing D2D transmission is a frequency band supported by a base station supporting an unlicensed frequency band according to resource information supported by the frequency band supported by the base station and other base stations (such as a secondary base station of the primary base station) that can be controlled by the base station supporting the unlicensed frequency band. The resource information is configured, so the base station supporting the unlicensed frequency band can comprehensively analyze the communication resources between the multiple base stations (such as the communication resources of the unlicensed frequency band and the communication resources of the licensed frequency band) to configure the D2D transmission to the D2D communication terminal. Communication resources, and the configured communication resources for D2D transmission include at least communication resources on the unlicensed frequency band, that is, may also include communication resources on the licensed frequency band, thereby enabling the D2D communication terminal to pass the communication resources on the unlicensed frequency band. D2D communication is implemented Application of D2D communication mechanism in unlicensed frequency bands.

In the above technical solution, preferably, in the case that the communication resource for performing the D2D transmission includes the communication resource on the unlicensed frequency band and the communication resource on the licensed frequency band, the resource configuration method further includes:

When the D2D data needs to be jointly transmitted through the unlicensed band and the licensed band, the D2D data to be transmitted is divided into a first part of data transmitted on the unlicensed band and a second part of data transmitted on the licensed band; The communication resource on the licensed frequency band transmits the first portion of data and transmits the second portion of data through a communication resource on the licensed frequency band.

Correspondingly, when the other D2D communication terminal receives the first partial data on the unlicensed frequency band and receives the second partial data on the licensed frequency band, the first partial data and the second partial data need to be aggregated.

FIG. 5 shows a schematic block diagram of a resource configuration apparatus for D2D communication in accordance with a second embodiment of the present invention.

As shown in FIG. 5, a resource configuration apparatus 500 for D2D communication according to a second embodiment of the present invention includes a receiving unit 502 and a communication unit 504.

The receiving unit 502 is configured to receive a communication resource for D2D transmission notified by a base station that supports an unlicensed frequency band, and the communication unit 504 is configured to perform D2D communication based on the communication resource that performs D2D transmission; where the communication for performing D2D transmission is performed. The resource is configured by the base station according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by other base stations that the base station can control, and the communication resource for performing D2D transmission includes at least an unlicensed frequency band. Communication resources on.

In an embodiment of the present invention, in the case that the communication resource for performing the D2D transmission includes the communication resource on the unlicensed frequency band and the communication resource on the licensed frequency band, the resource configuration apparatus 500 further includes: processing Unit 506 and transmission unit 508.

The processing unit 506 is configured to split the D2D data to be transmitted into the first part of data transmitted on the unlicensed frequency band and the second part transmitted on the licensed frequency band when the D2D data needs to be jointly transmitted through the unlicensed frequency band and the licensed frequency band. Part of the data; the transmitting unit 508 is configured to transmit the first part of data by using a communication resource on the unlicensed frequency band, and transmit the second part of data by using a communication resource on the licensed frequency band.

Fig. 6 shows a schematic block diagram of a terminal in accordance with a first embodiment of the present invention.

As shown in FIG. 6, a terminal 600 according to a first embodiment of the present invention includes: a resource configuration apparatus 500 for D2D communication as shown in FIG.

The scheme for resource allocation in D2D communication is explained from the base station side and the terminal side respectively, and is further explained as follows in conjunction with FIG. 7 and FIG. 8 respectively:

As shown in FIG. 7, the base station can coordinate the communication resources of the D2D transmission to the terminal 702, where at least the communication resources for performing D2D transmission on the unlicensed frequency band are included, and of course, the D2D transmission can be included in the licensed frequency band. The communication resource, and further the terminal 702 communicates with the terminal 704 via the communication resource configured by the base station for D2D transmission.

Specifically, as shown in FIG. 8, the method mainly includes the following steps:

In step 802, the base stations coordinate to determine a resource or resource pool for D2D transmission.

Specifically, a base station supporting an unlicensed frequency band supports a plurality of frequency bands supported by the base station (which may include a licensed frequency band and an unlicensed frequency band), and a frequency band supported by other base stations (which may be multiple) that can be controlled by the base station (may include The carrier resources on the licensed band and the unlicensed band are analyzed, and the resource or resource pool for performing D2D transmission (including at least the communication resources on the unlicensed band or the communication resources on the licensed band) may be configured.

The carrier resource information on the frequency bands supported by other base stations may be obtained through interface signaling between the base stations (such as a manner similar to the X2 interface).

The resource or resource that the base station performs D2D transmission according to the resource configuration of the acquired multiple carriers The criteria and methods of the pool may include: the occupation of radio resources in the licensed band, such as the percentage used, and the resource occupancy of each carrier on the unlicensed band.

The judgment of the base station on the occupation of the licensed frequency band resource can be directly obtained according to the resource scheduling information, and the occupation of the unlicensed frequency band resource needs to be in an indirect manner, because there may be other communication devices not controlled by the base station on the unlicensed frequency band. The indirect manner may include: determining, according to the interception and reporting of the unlicensed frequency band resources by the terminal served by the base station, or determining the data transmission status on the unlicensed frequency band, such as delay, packet loss rate, and the like.

Step 804: The base station supporting the unlicensed frequency band configures a resource or resource pool for performing D2D communication to the terminal by using system information or dedicated signaling related to the UE (User Equipment).

The resources or resource pools configured by the base station for performing D2D communication may be partially or completely located on the unlicensed frequency band. And the system information or the dedicated signaling of the base station can be sent on the carrier cell of the licensed band or the unlicensed band.

If the base station configures resources or resource pools for D2D communication through system information broadcast or dedicated signaling on the licensed frequency band, the base station needs to be able to support configuration of D2D communication resources or resource pools on the unlicensed frequency band across carriers, which is due to base station configuration. The D2D communication resource on the unlicensed band is included in the resource or resource pool for performing D2D communication.

If the base station configures resources or resource pools for D2D communication through system information broadcast or dedicated signaling on the unlicensed frequency band, and configures resources of the local cell, the base station does not need to perform cross-carrier operation to configure D2D communication on the unlicensed frequency band. Resource or resource pool.

Step 806: The terminal performs D2D communication between resources or resource pools for performing D2D communication configured by the base station.

Wherein, if all the D2D communication resources are located in the unlicensed frequency band, the entire D2D data to be sent by the terminal needs to be sent through the unlicensed frequency band when the data is transmitted.

If the D2D communication resource part is located on the unlicensed frequency band, and the terminal jointly sends data through the unlicensed frequency band and the licensed frequency band, the terminal needs to perform data splitting and aggregation of multiple carriers to implement D2D data transmission.

Figure 9 shows a schematic block diagram of a base station in accordance with a second embodiment of the present invention.

As shown in FIG. 9, a base station according to a second embodiment of the present invention includes a processor 1, an input device 2, an output device 3, and a memory 5. In some embodiments of the invention, the processor 1. The input device 2, the output device 3, and the memory 5 can be connected by a bus 4 or other means, and the connection through the bus 4 is taken as an example in FIG.

The memory 5 is used to store a set of program codes, and the processor 1 calls the program code stored in the memory 5 for performing the following operations:

Obtaining, by the input device 2, resource information on a frequency band supported by other base stations that can be controlled by a base station supporting an unlicensed frequency band;

Configuring a communication resource for D2D transmission according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by the other base station, where the communication resource for performing D2D transmission includes at least an unlicensed frequency band Communication resources;

The configured communication resource for D2D transmission is notified to the D2D communication terminal by the output device 3.

As an optional implementation manner, the processor 1 calls the program code stored in the memory 5, specifically for performing the following operations:

The resource information on the frequency bands supported by the other base stations is obtained by the input device 2 through the interface signaling between the base stations.

The communication resource for performing D2D transmission is configured according to resource usage on a frequency band supported by the base station and resource usage on a frequency band supported by the other base station.

As an optional implementation manner, in a case where the frequency band supported by the base station itself includes an unlicensed frequency band, the processor 1 calls the program code stored in the memory 5, and is also used to perform the following operations:

Receiving a listening report for the unlicensed frequency band resource reported by the terminal served by the base station, and determining, according to the interception report, resource usage on the unlicensed frequency band supported by the base station; and/or

Obtaining a data transmission status on an unlicensed frequency band supported by the base station, and determining resource usage on an unlicensed frequency band supported by the base station according to the data transmission status.

As an optional implementation manner, in a case where the frequency band supported by the base station itself includes a licensed frequency band, the processor 1 calls the program code stored in the memory 5, and is also used to perform the following operations:

And determining, according to the resource scheduling situation of the base station on the licensed frequency band, resource usage on the licensed frequency band supported by the base station.

The D2D communication terminal configured to communicate with the D2D communication terminal is notified by the output device 3 via the system information or the dedicated signaling on the licensed frequency band or on the unlicensed frequency band.

As shown in FIG. 10, a terminal according to a second embodiment of the present invention includes a processor 1', an input device 2', an output device 3', and a memory 5'. In some embodiments of the present invention, the processor 1', the input device 2', the output device 3', and the memory 5' may be connected by a bus 4' or other means, as exemplified by the connection through the bus 4' in FIG.

The memory 5' is used to store a set of program codes, and the processor 1' calls the program code stored in the memory 5' for performing the following operations:

Receiving, by the input device 2', a communication resource for D2D transmission notified by a base station supporting an unlicensed frequency band;

Performing D2D communication by the output device 3' based on the communication resource for performing D2D transmission;

The communication resource for performing D2D transmission is configured by the base station according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by other base stations that the base station can control, and the D2D is performed. The transmitted communication resources contain at least communication resources on the unlicensed band.

As an optional implementation manner, in a case where the communication resource for D2D transmission includes both communication resources on an unlicensed frequency band and communication resources on the licensed frequency band, the processor 1' calls the memory in the memory 5'. The program code is also used to do the following:

When the D2D data needs to be jointly transmitted through the unlicensed band and the licensed band, the D2D data to be transmitted is divided into a first part of data transmitted on the unlicensed band and a second part of data transmitted on the licensed band;

The first portion of data is transmitted by the output device 3' through a communication resource on the unlicensed frequency band, and the second portion of data is transmitted through a communication resource on the licensed frequency band.

The steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs.

The resource configuration apparatus, the terminal, and the unit in the base station for D2D communication in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.

One of ordinary skill in the art can understand that all or part of the various methods of the above embodiments can be completed by a program to instruct related hardware, the program can be stored in a computer readable storage medium, and the storage medium includes read only Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory) EPROM), One-Time Programmable Read-Only Memory (OTPROM), Electronically-Erasable Programmable Read-Only Memory (EEPROM), Read-Only Disc (Compact Disc) Read-Only Memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other medium readable by a computer that can be used to carry or store data.

The technical solution of the present invention is described in detail above with reference to the accompanying drawings. The present invention proposes a new resource configuration scheme for D2D communication, so that the D2D communication terminal can perform D2D communication through communication resources on an unlicensed frequency band, thereby realizing Application of D2D communication mechanism in unlicensed frequency bands.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A resource configuration apparatus for D2D communication, comprising:

a first acquiring unit, configured to acquire resource information on a frequency band supported by other base stations that can be controlled by a base station supporting an unlicensed frequency band;

a configuration unit, configured to configure, according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by the other base station, a communication resource for performing D2D transmission, where the communication resource for performing D2D transmission Contain at least communication resources on unlicensed bands;

And a notification unit, configured to notify the D2D communication terminal of the communication resource for performing D2D transmission configured by the configuration unit.
The resource configuration apparatus for D2D communication according to claim 1, wherein the first acquiring unit is specifically configured to: acquire resources on a frequency band supported by the other base station by using interface signaling between base stations information.
The resource configuration apparatus for D2D communication according to claim 1 or 2, wherein the configuration unit is specifically configured to:

The communication resource for performing D2D transmission is configured according to resource usage on a frequency band supported by the base station and resource usage on a frequency band supported by the other base station.
The resource configuration apparatus for D2D communication according to any one of claims 1 to 3, wherein, in a case where a frequency band supported by the base station itself includes an unlicensed frequency band, the resource configuration apparatus further includes :

a receiving unit, configured to receive a listening report for the unlicensed frequency band resource reported by the terminal served by the base station, and determine, according to the interception report, resource usage on an unlicensed frequency band supported by the base station; and /or

And a second acquiring unit, configured to acquire a data transmission state on an unlicensed frequency band supported by the base station, and determine, according to the data transmission state, resource usage on an unlicensed frequency band supported by the base station.
The resource configuration apparatus for D2D communication according to any one of claims 1 to 3, wherein, in a case where a frequency band supported by the base station itself includes a licensed frequency band, The resource configuration device further includes:

And a determining unit, configured to determine, according to the resource scheduling situation of the base station on the licensed frequency band, resource usage on the licensed frequency band supported by the base station.
The resource configuration apparatus for D2D communication according to any one of claims 1 to 5, wherein the notification unit is specifically configured to:

The configured D2D transmission communication resource is notified to the D2D communication terminal on the licensed frequency band or on the unlicensed frequency band by system information or dedicated signaling.
The resource configuration apparatus for D2D communication according to claim 6, wherein when the notification unit notifies the configured D2D transmission communication resource to the D2D communication terminal on the licensed frequency band, And the base station is configured to configure communication resources on the unlicensed frequency band to the D2D communication terminal by means of cross-carrier scheduling.
A resource configuration apparatus for D2D communication, comprising:

a receiving unit, configured to receive a communication resource for D2D transmission notified by a base station supporting an unlicensed frequency band;

a communication unit, configured to perform D2D communication based on the communication resource that performs D2D transmission;

The communication resource for performing D2D transmission is configured by the base station according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by other base stations that the base station can control, and the D2D is performed. The transmitted communication resources contain at least communication resources on the unlicensed band.
The resource configuration apparatus for D2D communication according to claim 8, wherein in the case where the communication resource for performing D2D transmission includes both communication resources on an unlicensed frequency band and communication resources on a licensed frequency band The resource configuration device further includes:

a processing unit, configured to split the D2D data to be transmitted into the first part of data transmitted on the unlicensed frequency band and the second part of data transmitted on the licensed frequency band when the D2D data needs to be jointly transmitted through the unlicensed frequency band and the licensed frequency band ;

And a transmitting unit, configured to transmit the first part of data by using a communication resource on the unlicensed frequency band, and transmit the second part of data by using a communication resource on the licensed frequency band.
A resource configuration method for D2D communication, comprising:

A base station supporting an unlicensed band acquires a frequency band supported by other base stations that it can control. Resource information

Configuring a communication resource for D2D transmission according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by the other base station, where the communication resource for performing D2D transmission includes at least an unlicensed frequency band Communication resources;

Notifying the D2D communication terminal of the configured communication resource for D2D transmission.
The method for configuring a resource for D2D communication according to claim 10, wherein the step of supporting the base station of the unlicensed frequency band to obtain the resource information on the frequency band supported by the other base station that can be controlled by the base station includes:

The resource information on the frequency bands supported by the other base stations is obtained through interface signaling between the base stations.
The resource configuration method for D2D communication according to claim 10 or 11, wherein the resource information on the frequency band supported by the base station and the resource information on the frequency band supported by the other base station are configured. The steps of performing the communication resource of the D2D transmission include:

The communication resource for performing D2D transmission is configured according to resource usage on a frequency band supported by the base station and resource usage on a frequency band supported by the other base station.
The resource configuration method for D2D communication according to any one of claims 10 to 12, wherein, in a case that the frequency band supported by the base station itself includes an unlicensed frequency band, the resource configuration method further includes :

Receiving a listening report for the unlicensed frequency band resource reported by the terminal served by the base station, and determining, according to the interception report, resource usage on the unlicensed frequency band supported by the base station; and/or

Obtaining a data transmission status on an unlicensed frequency band supported by the base station, and determining resource usage on an unlicensed frequency band supported by the base station according to the data transmission status.
The resource configuration method for D2D communication according to any one of claims 10 to 12, wherein, in a case that the frequency band supported by the base station itself includes a licensed frequency band, the resource configuration method further includes:

And determining, according to the resource scheduling situation of the base station on the licensed frequency band, resource usage on the licensed frequency band supported by the base station.
The resource configuration method for D2D communication according to any one of claims 10 to 14, wherein the step of notifying the configured D2D communication communication resource to the D2D communication terminal comprises:

The configured D2D transmission communication resource is notified to the D2D communication terminal on the licensed frequency band or on the unlicensed frequency band by system information or dedicated signaling.
The resource configuration method for D2D communication according to claim 15, wherein when the configured D2D transmission communication resource is notified to the D2D communication terminal on the licensed frequency band, the base station The communication resources on the unlicensed frequency band can be configured to the D2D communication terminal by means of cross-carrier scheduling.
A resource configuration method for D2D communication, comprising:

Receiving communication resources for D2D transmission notified by a base station supporting an unlicensed frequency band;

Performing D2D communication based on the communication resource for performing D2D transmission;

The communication resource for performing D2D transmission is configured by the base station according to resource information on a frequency band supported by the base station and resource information on a frequency band supported by other base stations that the base station can control, and the D2D is performed. The transmitted communication resources contain at least communication resources on the unlicensed band.
The resource configuration method for D2D communication according to claim 17, wherein in the case that the communication resource for performing D2D transmission includes both communication resources on an unlicensed frequency band and communication resources on a licensed frequency band The resource configuration method further includes:

When the D2D data needs to be jointly transmitted through the unlicensed band and the licensed band, the D2D data to be transmitted is divided into a first part of data transmitted on the unlicensed band and a second part of data transmitted on the licensed band;

Transmitting the first partial data by a communication resource on the unlicensed frequency band, and transmitting the second partial data by using a communication resource on the licensed frequency band.
A base station, comprising: the resource configuration apparatus for D2D communication according to any one of claims 1 to 7.
A terminal, comprising: the resource configuration apparatus for D2D communication according to claim 8 or 9.