WO2013029462A1

WO2013029462A1 - D2d terminal communication method and device

Info

Publication number: WO2013029462A1
Application number: PCT/CN2012/079853
Authority: WO
Inventors: 常俊仁
Original assignee: 华为技术有限公司
Priority date: 2011-08-31
Filing date: 2012-08-08
Publication date: 2013-03-07
Also published as: CN102958066A; CN102958066B

Abstract

A D2D terminal communication method and device. The method includes: first user equipment acquiring distance-related information, wherein the distance is the distance between the first user equipment and second user equipment; the first user equipment reporting to a base station the distance-related information; the first user equipment or the second user equipment sending to a base station a first device-to-device buffering state report, wherein the first device-to-device buffering state report includes a buffering state report of the first user equipment and/or a buffering state report of the second user equipment; and the first user equipment receiving the resources and transmission power used for the device-to-device communication between the first user equipment and the second user equipment allocated by the base station according to the distance-related information in response to the first device-to-device buffering state report, and performing device-to-device communication based on the allocated resources and transmission power used for the device-to-device communication between the first user equipment and the second user equipment.

Description

D2D terminal communication method

This application is submitted to the Chinese Patent Office on August 31, 2011, and the application number is

The priority of the Chinese patent application entitled "D2D Terminal Communication Method and Apparatus" is hereby incorporated by reference. Technical field

The present invention relates to communication technologies, and in particular, to a device to device (D2D) terminal communication method and device.

Background technique

In a cell network, when a user equipment (UE, ie, a terminal) is to communicate with another user equipment, it needs to pass through a base station, for example, through a base station in a Long Term Evolution (LTE) network. Evolved NodeB, eNB) performs centralized control. The advantage of the eNB is that the eNB can centrally control the use of radio resources in the cell to perform effective interference control. However, if the distance between the two user equipments is relatively close, communication through the eNB still causes waste of radio resources.

With the continuous development of communication technologies, more and more user equipments need close-range data transmission, such as sharing data, transferring pictures, business cards, etc., which are typical close-range communication. Therefore, in the cell network, direct data transmission by the user equipment using the licensed frequency band of the operator is emphasized. A D2D device is a device that utilizes the frequency band resources of a cellular communication network for direct data transmission with other D2D devices. How to increase the transmission rate as much as possible in D2D communication without causing interference to users of the traditional cell network is a problem to be solved. Summary of the invention

Embodiments of the present invention minimize interference to a conventional cell network in D2D communication through a D2D terminal communication method, system, and device.

In order to solve the above technical problem, the embodiments of the present invention provide the following technical solutions.

According to an aspect of the present invention, a device-to-device terminal communication method is provided, including: The first user equipment acquires distance-related information, where the distance is a distance between the first user equipment and the second user equipment; the first user equipment reports the distance-related information to the base station; Or the second user equipment sends a first device-to-device cache status report to the base station, where the first device-to-device cache status report includes a cache status report of the first user equipment and/or a cache status report of the second user equipment; The first user equipment receives resources and transmit power used by the base station to communicate device-to-device communication between the first user equipment and the second user equipment according to the first device-to-device buffer status report, according to the distance-related information And performing device-to-device communication based on resources and transmit power used by the device-to-device communication between the first user equipment and the second user equipment.

According to another aspect of the present invention, a device-to-device terminal communication method is provided, including: a base station receiving distance-related information from a first user equipment, wherein the distance is a first user equipment and a second user equipment The distance between the base station receives a first device-to-device cache status report from the first user device or the second user device, the first device-to-device cache status report includes a cache status report of the first user device and/or the a buffer status report of the second user equipment; the base station allocates resources and transmission power used by the device to the device communication between the first user equipment and the second user equipment for the first user equipment and the second user equipment, the resources and the transmission The power is determined by the base station in response to the first device-to-device buffer status report, based on the distance-related information.

According to another aspect of the present invention, a device-to-device terminal communication method is provided, including: a first user equipment transmitting location information or location assistance information of a first user equipment and a second user equipment to a base station; receiving the base station The virtual cell communication indication message according to the location information or the location assistance information, the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes a first user equipment and a second User equipment; the first user equipment and the second user equipment communicate using communication resources that the virtual cell can use.

According to another aspect of the present invention, a device-to-device terminal communication method is provided, including: receiving, by a base station, location information or location assistance information of a first user equipment and a second user equipment from a first user equipment, or from the first The user equipment and the second user equipment respectively receive the location of the first user equipment Information and location information of the second user equipment, or receiving location assistance information of the first user equipment and location assistance information of the second user equipment from the first user equipment and the second user equipment; the base station assists according to the location information or location Transmitting, to the first user equipment and the second user equipment, a communication resource that can be used by the virtual cell; sending a virtual d, a zone communication indication message to the first user equipment and the second user equipment, where the virtual cell communication indication message includes The communication resource information that can be used by the virtual cell, where the virtual cell includes the first user equipment and the second user equipment.

According to another aspect of the present invention, a device-to-device terminal communication device on a user equipment side is provided, including: an acquiring unit, configured to acquire distance-related information, where the distance is a first user equipment and a a distance between the two user equipments; a reporting unit, configured to report the distance-related information to the base station; and a sending unit, configured to send the first device-to-device buffer status report to the base station, where the first device-to-device buffer status The report includes a cache status report of the first user equipment and/or a buffer status report of the second user equipment, and a receiving unit, configured to receive, from the base station, a response to the first device-to-device cache status report, according to the distance-related Resources and transmit power used by the device-to-device communication between the first user device and the second user device, and based on the device-to-device communication between the first user device and the second user device Resources and transmit power for device-to-device communication.

According to another aspect of the present invention, a device-to-device terminal communication device on a base station side is provided, including: a first receiving unit, configured to receive distance-related information from a first user equipment, where The distance is a distance between the first user equipment and the second user equipment; the second receiving unit is configured to receive, by the first user equipment or the second user equipment, a first device to a device buffer status report, where the first device is The device cache status report includes a cache status report of the first user equipment and/or a cache status report of the second user equipment; an allocation unit, configured to allocate the first user equipment and the second user equipment to the first user equipment and Resources and transmit power used by device-to-device communication between the second user equipment, the resources and transmit power being determined by the base station in response to the first device-to-device cache status report, based on the distance-related information.

According to another aspect of the present invention, a device-to-device terminal communication on a user equipment side is provided. The signaling device, comprising: a sending unit, configured to send location information or location assistance information of the first user equipment and the second user equipment to the base station; and a receiving unit, configured to receive, according to the location information or location, the base station a virtual cell communication indication message that is sent by the auxiliary information, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes a first user equipment and a second user equipment; Communication is performed using communication resources that can be used by the virtual cell.

According to another aspect of the present invention, a device-to-device terminal communication device on a base station side is provided, including: a receiving unit, configured to receive, by a first user equipment, a first user equipment and a second user equipment Position information or location assistance information, or receiving location information of the first user equipment and location information of the second user equipment from the first user equipment and the second user equipment, respectively, or receiving the first user equipment and the second user equipment a location assistance information of the user equipment and location assistance information of the second user equipment; an allocation unit, configured to allocate, to the first user equipment and the second user equipment, communication that can be used by the virtual cell according to the location information or the location assistance information a sending unit, configured to send a virtual cell communication indication message to the first user equipment and the second user equipment, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes The first user device and the second user device.

The embodiments of the present invention not only realize the direct communication of the D2D terminal by properly allocating the resources of the two D2D communication UEs, but also effectively avoid mutual interference between the D2D communication and the traditional cell communication, thereby improving the spectrum use efficiency of the cell. For the case where two UEs transmit the same amount of data, the D2D communication scheme according to an embodiment of the present invention can save radio resources compared to the communication mode of the cell mode. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description For some embodiments of the present invention, other drawings may be obtained from those skilled in the art without departing from the drawings. 1 shows a flow chart of a D2D communication method implemented on the UE side according to an embodiment of the present invention;

1 shows a D2D terminal communication method implemented on a base station side according to an embodiment of the present invention;

3 is a flow chart showing a D2D terminal communication method according to an embodiment of the present invention; FIG. 4 is a flowchart showing a D2D terminal communication method implemented on a base station side according to an embodiment of the present invention;

FIG. 5 shows a device-to-device terminal communication device on the user equipment side according to an embodiment of the present invention; FIG.

6 shows a device-to-device terminal communication device on a base station side according to an embodiment of the present invention;

FIG. 7 shows a device-to-device terminal communication device on the user equipment side according to an embodiment of the present invention;

Fig. 8 shows a device-to-device terminal communication device on the base station side according to an embodiment of the present invention. detailed description

The D2D terminal communication method, system and device are described in detail below.

It should be noted that the communication method of the D2D terminal according to the embodiment of the present invention refers to a method for direct communication between the terminal device and the terminal device, and the communication is performed by using spectrum resources of the cell network.

Example 1

1 shows a flow chart of a D2D communication method implemented on the UE side according to an embodiment of the present invention. It can be seen that the D2D communication method includes:

Step 110: UE1 acquires information about a distance between UE1 and UE2.

To this end, UE1 can detect UE2 and estimate the distance between UE1 and UE2 based on the detection signal. In the embodiment of the present invention, "distance-related information" has a broad meaning. "Information related to distance" may include communication distance expressed by length or time, and communication distance Off path loss information, ultra short-range communication request indications, or any combination between them.

Among them, UE1 can obtain information about the distance between UE1 and UE2, for example, by signal delay or signal fading of communication between UE1 and UE2. In addition, preferably, UE1 may also acquire the identity of UE2 when detecting UE2.

Step 120: The UE1 reports the distance-related information to the base station.

In one embodiment of the invention, UE1 may report the distance related information to the base station. In another embodiment of the present invention, UE1 may report the identity of UE2 to the base station while reporting the distance-related information to the base station.

In a specific implementation of the present invention, it may be determined on the UE side whether the distance between UE1 and UE2 is less than a predetermined threshold. To this end, when UE1 determines based on the distance-related information that the distance between UE1 and UE2 is less than a predetermined threshold, UE1 reports the distance-related information to the base station. In addition, after UE1 reports the identity of UE2 to the base station, UE1 may further receive a notification from the base station that the base station has established a communication connection with UE2.

In another embodiment of the present invention, the base station may also determine whether the distance between UE1 and UE2 is less than a predetermined threshold. For this reason, when the base station needs to determine whether the distance between the UE1 and the UE2 is less than a predetermined threshold, the UE1 may receive an indication command for reporting the distance-related information sent by the base station; and then, in response to the command of the base station, the UE1 reports the distance to the base station. Relevant information. Further, when the base station determines that the distance is less than a predetermined threshold based on the distance-related information, the UE1 may also receive a notification from the base station that a communication connection has been established with the UE2.

Step 130: UE1 or UE2 sends a first D2D cache status report to the base station, where the first

The D2D cache status report includes a buffer status report of UE1 and/or a cache status report of the UE2.

In an embodiment of the present invention, UE1 and UE2 may respectively send respective D2D buffer status reports to the base station.

In another embodiment of the present invention, the buffer status report may also be uniformly sent by one of UE1 and UE2 through UE side negotiation. For example, if the negotiation result is uniformly sent by UE1, UE2 may send its own buffer status report to UE1, and may uniformly send the first D2D cache status report to UE by UE1. The first D2D cache status report may include a buffer status report of the first UE (ie, UE1) and/or the second UE (ie, UE2). Specifically, when both UE1 and UE2 need resources to send data, the first D2D cache status report may include a buffer status report of UE1 and UE2; when only UE1 needs resources to send data, the A D2D cache status report may only include the cache status report of UE1; when only UE2 needs resources to transmit data, the first D2D cache status report may only include the cache status report of UE2.

In another embodiment of the present invention, one of UE1 and UE2 may also be designated by the base station to transmit a buffer status report. In this case, UE1 and UE2 may receive an indication message of the base station, where the indication message is used to specify that UE1 or UE2 sends a first D2D buffer status report. Next, UE1 or UE2 sends a first D2D buffer status according to the designation of the base station. Reporting that the first D2D cache status report includes a buffer status report of the first UE and/or the second UE.

In another embodiment of the present invention, when UE1 or UE2 sends the first D2D cache status report information, there is not enough resources to send the first D2D cache status report information. In this case, the UE1 or the UE2 may first send the first D2D scheduling request to the base station, where the first D2D scheduling request includes the scheduling request of the UE1 or the scheduling request of the UE2, or the scheduling request of the UE1 and the UE2, to request the base station to allocate. The resource sends the first D2D cache status report information.

Step 140: UE1 and UE2 receive, from the base station, resources used by the base station to perform D2D communication between UE1 and UE2, which are allocated according to the first D2D buffer status report, according to the distance-related information, and may further include D2D communication. The transmit power used, which may be the maximum transmit power allowed for D2D communication designated by the base station. The buffer status report of a UE indicates the amount of data buffered by the UE, and is used by the base station as a reference for allocating resources. The more data that is usually buffered, the more resources the base station allocates to the UE. The base station may decide to allocate resources for the two UEs based on the distance. It can be understood that the closer the distance between the two UEs is, the lower the transmission power between the two UEs is, and it is not easy to cause interference to other user equipments. In this case, the base station can allocate resources for the two UEs. The base station may perform the operation of allocating resources when the distance is less than a certain threshold.

UE1 and UE2 perform D2D communication based on a certain transmission power based on resources used for D2D communication between the allocated UE1 and UE2.

In an embodiment of the present invention, the UE1 and the UE2 may receive, by the base station, the allocated resource information, where the resource information includes a resource ratio that can be used by the UE1 and the UE2. Then, UE1 and UE2 may use the proportion of resources in the resource information. Use the resources allocated by the base station. Further, preferably, the transmission power specified by the base station is the maximum transmission power.

In a preferred embodiment of the present invention, the resource information may further include an effective time of the resource. To this end, UE1 and UE2 may use the resources allocated by the base station according to the effective time of the resource and the proportion of resources. If the resource ratio is 1:1, then the two UEs can be in the valid time, according to 1: 1 Proportional use of the resource. The effective time of the resource is the time at which the UE can use the resource. In another preferred embodiment of the present invention, when there are remaining resources in the transmission resources allocated for UE1 or UE2, UE1 or UE2 may add a transmission end identifier to the transmitted data packet, so that the remaining transmission resources Can be used by UE2 or UE1. Alternatively, when the transmission resource allocated for UE1 or UE2 has remaining resources, UE1 or UE2 sends end identification information to UE2 or UE1, so that the remaining transmission resources can be used by UE2 or UE1. Through such processing, resource utilization can be further improved.

In addition, in the D2D communication method according to the embodiment of the present invention, by properly allocating resources between two UEs, the D2D terminal directly communicates, and the mutual interference between the D2D communication and the cell communication is effectively avoided, thereby improving the frequency efficiency of the cell. . For the case where two UEs transmit the same amount of data, the scheme according to an embodiment of the present invention can save half of the wireless resources compared to the communication mode of the cell mode. Example 2

The D2D terminal communication method according to the embodiment of the present invention is described above with reference to FIG. 1 from the UE side. Accordingly, the embodiment of the present invention further provides a D2D terminal communication method at the base station side.

Fig. 2 shows a D2D terminal communication method implemented on the base station side according to an embodiment of the present invention. It can be seen that the D2D communication method includes:

Step 210: The base station receives distance-related information from the UE1, where the distance is a distance between the UE1 and the UE2.

In one embodiment of the invention, the base station can receive the distance related information from UE1. In another embodiment of the present invention, the base station may receive the identity of the UE 2 while receiving the distance related information from the UE 1.

In a specific implementation of the present invention, it may be determined on the UE side whether the distance between UE1 and UE2 is less than a predetermined threshold. To this end, the base station may receive the distance-related information from the UE1 when the UE1 determines that the distance between UE1 and UE2 is less than a predetermined threshold based on the distance-related information. In addition, after the base station receives the identifier of the UE2 from the UE1, the base station may further send a paging message to the UE2, and after establishing a communication connection with the UE2, may send a notification to the UE1 that the communication connection has been established with the UE2.

In another embodiment of the present invention, the base station may also determine between UE1 and UE2. Whether the distance is less than a predetermined threshold. For this reason, when the base station considers that UE1 and UE2 may perform D2D communication, and thus needs to determine whether the distance between UE1 and UE2 is less than a predetermined threshold, the base station may send an indication command for reporting the distance-related information to UE1; then the base station receives from UE1. The distance related information. In addition, when the base station determines, according to the distance-related information, that the distance between the UE1 and the UE2 is less than a predetermined threshold, the base station may send a paging message to the UE2, and after establishing a communication connection with the UE2, may further send the message to the UE1. A notification that a communication connection has been established with UE2.

Step 220: The base station receives a first D2D cache status report from UE1 or UE2, where the first D2D cache status report includes a buffer status report of UE1 and/or a buffer status report of UE2.

In an embodiment of the present invention, the base station may receive respective ones from UE1 and UE2, respectively.

D2D cache status report.

In another embodiment of the present invention, the base station may receive a first D2D buffer status report from one of UE1 and UE2. The buffer status report is uniformly sent by one of UE1 and UE2 through UE side negotiation. For example, if the negotiation result is uniformly transmitted by UE1, UE2 may send its own buffer status report to UE1, such that the base station receives the first D2D cache status report from UE1. The first D2D cache status report may include a cache status report of UE1 and/or UE2. Specifically, when both UE1 and UE2 need resources to send data, the first D2D cache status report may include a buffer status report of UE1 and UE2; when only UE1 needs resources to send data, the first D2D cache The status report may only include the cache status report of UE1; when only UE2 needs resources to transmit data, the first D2D cache status report may only include the cache status report of UE2.

In another embodiment of the present invention, one of UE1 and UE2 may also be designated by the base station to transmit a buffer status report. In this case, the base station sends an indication message to the UE1 and the UE2, where the indication message is used to specify that the UE1 or the UE2 sends the first D2D buffer status report. Then, the base station receives the first D2D cache status report from the specified UE1 or UE2. The first D2D cache status report includes a cache status report of the first UE and/or the second UE.

In another embodiment of the present invention, when the UE1 or the UE2 sends the first D2D cache status report information, there is not enough resources to send the first D2D cache status report information. In this case, the base station may first receive a first D2D scheduling request from UE1 or UE2, where the first D2D scheduling request includes a scheduling request of UE1 or a scheduling request of UE2, or a modulation of UE1 and UE2. Then, the base station allocates resources to UE1 and/or UE2 to transmit the first D2D cache status report information.

Step 230: The base station allocates resources used by the D2D communication between the first UE and the second UE to the first UE and the second UE, and further includes a transmit power that can be used by the D2D communication, where the transmit power may be a base station. The maximum transmit power allowed for the specified D2D communication.

The resource and transmit power are determined by the base station in response to the first D2D buffer status report based on the distance related information.

In an embodiment of the present invention, the base station may send the allocated resource information to UE1 and UE2, where the resource information includes a resource ratio that UE1 and UE2 can use, so that UE1 and UE2 can use the resource ratio in the resource information. The resources allocated by the base station. Further, preferably, the transmission power specified by the base station is the maximum transmission power.

In a preferred embodiment of the present invention, the resource information may further include a valid time of the resource. To this end, the base station may instruct UE1 and UE2 to use the allocated resource according to the resource ratio in the resource effective time specified by the base station. Here, we refer to this resource allocation method as a long-term semi-persistent scheduling resource, namely Long-Term SPS (Semi-persistent scheduling) resource.

In this way, in the D2D communication method according to the embodiment of the present invention, by properly allocating the Long-Term SPS resource information of the two UEs, the D2D terminal directly communicates, and the mutual interference between the D2D communication and the cell communication is effectively avoided, and the cell is improved. Frequency efficiency. In the case where two UEs transmit the same amount of data, the scheme according to an embodiment of the present invention can save half of the radio resources compared to the communication mode of the cell mode. Example 3

In addition, an embodiment of the present invention further provides a D2D terminal communication method.

FIG. 3 shows a flow chart of a D2D terminal communication method in accordance with one embodiment of the present invention. The D2D communication method includes:

Step 310: UE1 sends location information or location assistance information of UE1 and UE2 to the base station, or UE1 and UE2 respectively send location information or location assistance information to the base station.

In an embodiment of the present invention, UE2 may send its own location information to UE1, and then UE1 sends location information or location assistance information of UE1 and UE2 to the base station. The location assistance information is information that can be used to derive the location of the UE1 and the UE2, for example, the bit The set auxiliary information may include location information of the UE1 and distance information between the UE1 and the UE2. In another embodiment of the present invention, UE1 and UE2 may also send their own location information to the base station.

Step 320: Receive a virtual cell communication indication message sent by the base station according to the location information or the location assistance information.

In an embodiment of the present invention, the virtual cell communication indication message includes communication resource information that can be used by the virtual cell allocated by the base station, where the communication resource information includes information about the radio resources that the UE1 and the UE2 allow for D2D communication, such as permission. Carrier information used, etc. The virtual cell includes at least UE1 and UE2. In another embodiment of the present invention, the virtual cell communication indication message may further include primary UE indication information of the virtual cell to indicate which one of UE1 and UE2 the primary UE is; or, the virtual cell communication indication message may further include virtual The primary UE indication information and the secondary UE indication information of the cell are used to indicate the primary UE and the secondary UE in UE1 and UE2. The base station can decide whether to allow virtual cell communication of the two UEs based on the locations of the two UEs. It can be understood that when the distance between the two UEs is closer, for example, less than a certain threshold, the transmission power between the UEs is lower, and it is not easy to cause interference to other user equipments. The base station can allow virtual cell communication at this time.

The processing of the primary UE and the secondary UE by the base station is only an example, and the present invention is not limited thereto, and the primary UE and the secondary UE may also be determined by the UE through negotiation. Preferably, after determining the primary UE and the secondary UE on the UE side, UE1 or UE2 may also report the determined primary UE to the base station or report the determined primary UE and secondary UE.

Step 330: UE1 and/or UE2 communicate by using communication resources that can be used by the virtual cell allocated by the base station.

In an embodiment of the present invention, the primary UE and the secondary UE may respectively receive one or more sets of modulation and coding formats and/or transmit power information pre-configured by the base station for the virtual cell. The one or more sets of modulation and coding formats and/or transmit power information may be carried by the virtual cell communication indication message of step 320 or by a dedicated message. The primary UE and the secondary UE then negotiate and determine the modulation coding format and/or transmit power that can be used by the virtual cell communication based on the received pre-configured one or more sets of modulation and coding formats and/or transmit power information.

In another embodiment of the present invention, the primary UE receives the virtual cell pre-configured by the base station to set one or more sets of modulation and coding formats and/or transmit power information, and forwards the virtual cell pre-configuration to the secondary UE. One or more sets of modulation coding formats and/or transmit power information. Thereafter, the primary UE and the secondary UE negotiate to determine a modulation and coding format and/or transmit power that the virtual cell can use based on the pre-configured one or more sets of modulation and coding formats and/or transmit power information and to communicate with each other. The manner in which the resources used in the virtual cell communication are used may also be determined by the primary UE. That is, the primary UE determines the adjusted coding format used by the primary UE and the secondary UE for communication, and the transmit power of both parties. At this time, the primary UE notifies the secondary UE of the determined information of the adjusted coding format and/or the transmission power.

In another embodiment of the present invention, the base station may not perform pre-configuration of the modulation and coding format and/or the transmit power, but may determine, by the primary UE, a modulation and coding format and/or transmit power that can be used by the D2D communication, and The secondary UE notifies the determined information of the modulation coding format and/or transmission power that can be used.

The above pre-configured transmit power information may be transmit power specific to each modulation and coding format, respectively, or may also be the maximum transmit power allowed in D2D communication.

In the D2D communication method according to the foregoing embodiment, the virtual D2D micro cell is configured based on the location information, and the base station may preconfigure a plurality of sets of modulation and coding formats and corresponding maximum transmit power information for the D2D device in the virtual cell for the UE to select autonomously. Or, the primary UE autonomously determines the modulation and coding format and/or the transmit power that can be used for the D2D communication, so that the base station can prevent the D2D device from being frequently scheduled. Therefore, the embodiment of the present invention can reduce the communication between the UE and the eNB and improve the utilization of the control channel. Example 4

Similar to the D2D terminal communication method on the UE side, the embodiment of the present invention further provides a terminal communication method on the base station side.

4 is a flow chart showing a D2D terminal communication method implemented on a base station side according to an embodiment of the present invention. The D2D communication method includes:

Step 41: The base station receives location information or location assistance information of the first UE and the second UE from the first UE, or receives location information or location assistance information from the first UE and the second UE, respectively.

In an embodiment of the present invention, UE2 may transmit its own location information to UE1, and then the base station receives location information or location assistance information of UE1 and UE2 from UE1. The location assistance information is information that can derive the location of the UE1 and the UE2, for example, the location assistance. The assistance information may include location information of the UE1 and distance information between the UE1 and the UE2.

In another embodiment of the present invention, the base station may also receive their respective location information from UE1 and UE2, respectively.

Step 420: Send, to the first UE and the second UE, a virtual cell communication indication message that is determined by the base station according to the location information or the location assistance information.

In an embodiment of the present invention, the virtual cell communication indication message includes communication resource information that can be used by the virtual cell allocated by the base station, where the communication resource information includes information about the radio resources that the UE1 and the UE2 allow for D2D communication, such as permission. Carrier information used, etc. The virtual cell includes at least UE1 and UE2. In another embodiment of the present invention, the virtual cell communication indication message may further include primary UE indication information of the virtual cell to indicate which one of UE1 and UE2 the primary UE is; or, the virtual cell communication indication message may further include virtual The primary UE indication information and the secondary UE indication information of the cell are used to indicate the primary UE and the secondary UE in UE1 and UE2.

The processing of the primary UE and the secondary UE by the base station is only an example, and the present invention is not limited thereto, and the primary UE and the secondary UE may also be determined by the UE through negotiation. Preferably, after determining the primary UE and the secondary UE on the UE side, the base station may receive the determined primary UE information or the determined primary UE and secondary UE information from UE1 or UE2.

Step 430: The base station sends, to the first UE and/or the second UE, a usage manner of communication resources that can be used by the virtual cell.

In an embodiment of the present invention, the base station may separately send one or more sets of modulation and coding formats and/or transmit power information pre-configured to the virtual cell to the primary UE and the secondary UE. The one or more sets of modulation and coding formats and/or transmit power information may be included in the virtual cell communication indication message of step 420, in which case steps 430 and 420 are the same step, or are included in a dedicated message, in this case. 430 and 420 are separate steps. The primary UE and the secondary UE then negotiate and determine the modulation and coding formats and/or transmit powers that can be used for the virtual cell communication based on the received pre-configured one or more sets of modulation and coding formats and/or transmit power information.

In another embodiment of the present invention, the base station may send, to the primary UE, one or more sets of modulation and coding formats and/or transmit power information, which are pre-configured for the virtual cell, and the primary UE is forwarded to the secondary UE to pre-configure the virtual cell. Or multiple sets of modulation coding formats and/or transmit power information. Thereafter, the primary UE and the secondary UE negotiate to determine the location based on the pre-configured one or more sets of modulation and coding formats and/or transmit power information. The modulation and coding formats and/or transmission powers that can be used by the virtual cells are communicated with each other. The manner in which the resources used in the virtual cell communication are used may also be determined by the primary UE. That is, the primary UE determines the adjusted coding format used by the primary UE and the secondary UE for communication, and the transmit power of both parties. At this time, the primary UE notifies the secondary UE of the determined information of the adjusted coding format and/or the transmission power.

In another embodiment of the present invention, the base station may send, to the primary UE, one or more sets of modulation and coding formats and/or transmit power information for the virtual cell, and the modulation coding format and/or transmission that may be used by the primary UE. The power, and the secondary UE is informed of the determined modulation coding format and/or transmission power that can be used. Alternatively, the base station may not perform pre-configuration of the modulation and coding format and/or the transmit power, but may determine, by the primary UE, a modulation and coding format and/or transmit power that can be used by the D2D communication, and notify the secondary UE of the determined usable use. Modulating the information of the encoding format and/or transmission power. Here, the pre-configured transmit power information may be transmit power specific to each modulation and coding format, respectively, or may also be said to allow maximum transmit power used in D2D communication.

The above-mentioned pre-configured transmission power information may be transmission power specific to each modulation coding format, respectively, or may also be said to allow maximum transmission power used in D2D communication.

In the D2D communication method according to the foregoing embodiment, the virtual D2D micro cell is configured based on the location information, and the base station may preconfigure a plurality of sets of modulation and coding formats and corresponding maximum transmit power information for the D2D device in the virtual cell for the UE to select autonomously. Or, the primary UE autonomously determines the modulation and coding format and/or the transmit power that can be used for the D2D communication, so that the base station can prevent the D2D device from being frequently scheduled. Therefore, the embodiment of the present invention can reduce the communication between the UE and the eNB and improve the utilization of the control channel. Similar to the method embodiments described above, the present invention also provides corresponding apparatus embodiments.

Fig. 5 shows a device-to-device terminal communication device on the user equipment side according to an embodiment of the present invention.

As shown in FIG. 5, the device-to-device terminal communication device on the user equipment side according to the embodiment of the present invention may include an obtaining unit 510, a reporting unit 520, a transmitting unit 530, and a receiving unit 540.

The obtaining unit may acquire information about the distance, where the distance is a distance between the first user equipment and the second user equipment. The reporting unit can report the distance related information to the base station. The sending unit may send the first device to device buffer status report to the base station, the first device to the device The cache status report includes a cache status report of the first user device and/or a cache status report of the second user device. The receiving unit may receive, from the base station, resources and transmit power used by the device-to-device communication between the first user equipment and the second user equipment, which are allocated according to the first device-to-device buffer status report, according to the distance-related information And performing device-to-device communication based on resources and transmit power used by the device-to-device communication between the first user equipment and the second user equipment.

Preferably, the reporting unit may further determine whether the distance is less than a predetermined threshold based on the distance-related information, and report the distance-related information to the base station when the distance is less than a predetermined threshold.

Preferably, the reporting unit may further receive an indication command for reporting the distance-related information sent by the base station, and report the distance-related information to the base station in response to the command of the base station.

Preferably, the reporting unit reports the identity of the second user equipment to the base station while reporting the distance-related information to the base station.

Preferably, the receiving unit may further receive, from the base station, a notification that the base station has established a communication connection with the second user equipment after reporting the distance-related information to the base station.

Preferably, the sending unit may further receive a second buffer status report sent by the second user equipment, and send a first device-to-device cache status report to the base station, where the first device-to-device cache status report includes a cache of the first user equipment. a status report and a buffer status report of the second user equipment; or receiving an indication message of the base station, where the indication message is used to specify that the first user equipment or the second user equipment sends the first device-to-device buffer status report; The first device-to-device cache status report may be sent according to the indication message.

Preferably, before sending the first device-to-device buffer status report information, the sending unit may further send a first device-to-device scheduling request to the base station, where the first device-to-device scheduling request is used to request the base station to send the first The device-to-device cache status report resource includes a scheduling request of the first user equipment or a scheduling request of the second user equipment, or a scheduling request of the first user equipment and the second user equipment.

Preferably, the resource received by the receiving unit may include: the base station transmitting the allocated resource information, where the resource information includes a proportion of resources that can be used by the first user equipment and the second user equipment; and the first user equipment uses the base station according to the ratio. Provisioned resources.

Preferably, the resource information may further include a valid time of the resource, and the first user equipment uses the resources allocated by the base station according to the effective time of the resource. Preferably, the resources used by the device-to-device communication between the allocated first user equipment and the second user equipment include a transmission resource allocated for the first user equipment and a transmission resource allocated for the second user equipment. When the transmission resource allocated for the first user equipment or the second user equipment has remaining resources, the first user equipment or the second user equipment adds a transmission end identifier to the sent data packet, so that the remaining resources can be The second user device or the first user device is used. Or, when the transmission resource allocated to the first user equipment or the second user equipment has a remaining resource, the first user equipment or the second user equipment sends end identification information to the second user equipment or the first user equipment, so that the The remaining resources can be used by the second user equipment or the first user equipment.

Preferably, the distance-related information may include: path loss information between the first user equipment and the second user equipment, distance information between the first user equipment and the second user equipment, and an ultra-short-range communication request. At least one of the indications. Fig. 6 shows a device-to-device terminal communication device on the base station side according to an embodiment of the present invention.

As shown in FIG. 6, the device-to-device terminal communication device on the base station side according to the embodiment of the present invention may include: a first receiving unit 610, a second receiving unit 620, and an allocating unit 630. The first receiving unit may receive distance-related information from the first user equipment, wherein the distance is a distance between the first user equipment and the second user equipment. The second receiving unit may receive the first device-to-device cache status report from the first user equipment or the second user equipment, where the first device-to-device cache status report includes a cache status report of the first user equipment and/or the The cache status report of the two user devices. The allocating unit may allocate, for the first user equipment and the second user equipment, resources and transmit power used by the device to the device communication between the first user equipment and the second user equipment, where the resource and the transmit power are the base station responding to the first Device-to-device cache status report, determined based on the distance-related information.

Preferably, the first receiving unit may further transmit a command message reporting the distance-related information to the first user equipment, and receive the distance-related information from the first user equipment.

Preferably, the first receiving unit may further receive the identifier of the second user equipment while receiving the distance-related information from the first user equipment.

Preferably, the first receiving unit may establish a communication connection with the second user equipment according to the second user equipment identifier, and notify the first user equipment of the establishment of the communication connection.

Preferably, after receiving the distance-related information from the first user equipment, the first receiving unit further Steps may be based on the distance-related information to determine whether the distance is less than a predetermined threshold; when the distance is less than a predetermined threshold, send a paging message to the second user equipment; A notification to establish a communication connection with the second user equipment.

Preferably, the second receiving unit may further specify that the first user equipment or the second user equipment sends the first device to device buffer status report; the base station receives the first device to device buffer status report from the first user equipment or the second user equipment.

Preferably, before the base station receives the first device to the device buffer status report from the first user equipment or the second user equipment, the second receiving unit may further receive the first device to the device reported from the first user equipment or the second user equipment. a scheduling request, the first device-to-device scheduling request is used to request, by the base station, the first device-to-device buffer status report resource, including a scheduling request of the first user equipment or a scheduling request of the second user equipment, or A scheduling request of a user equipment and a second user equipment.

Preferably, the allocating unit may further inform the first user equipment and the resource information allocated by the second user equipment base station, the resource information including a resource ratio that the first user equipment and the second user equipment can use.

Preferably, the resource information may further include a valid time when the base station notifies the first user equipment and the second user equipment resource.

Preferably, the distance-related information may include: path loss information between the first user equipment and the second user equipment, distance information between the first user equipment and the second user equipment, and an ultra-short-range communication request indication at least one.

Fig. 7 shows a device-to-device terminal communication device on the user equipment side according to an embodiment of the present invention.

As shown in FIG. 7, the device-to-device terminal communication device on the user equipment side according to an embodiment of the present invention may include a transmitting unit 710, a receiving unit 720, and a communication unit 730. The transmitting unit may transmit location information or location assistance information of the first user equipment and the second user equipment to the base station. The receiving unit may receive a virtual cell communication indication message that is sent by the base station according to the location information or the location assistance information, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes The first user device and the second user device. The communication unit can communicate using communication resources that the virtual cell can use.

Preferably, the virtual cell communication indication message may include a primary user equipment indication of the virtual cell Information, the primary user equipment is any one of the first user equipment and the second user equipment. Or the virtual cell communication indication message may include the primary user equipment indication information and the secondary user equipment indication information, where the primary user equipment is one of the first user equipment and the second user equipment, and the secondary user The device is the other of the first user device and the second user device.

Preferably, the device-to-device terminal communication device on the user equipment side according to an embodiment of the present invention may further include a negotiating unit. The negotiating unit may negotiate between the first user equipment and the second user equipment to determine the primary user equipment in the first user equipment and the second user equipment, or determine the primary user equipment and the secondary user equipment. .

Preferably, the device-to-device terminal communication device on the user equipment side according to the embodiment of the present invention may further include: a primary user equipment reporting unit, configured to report the determined primary user equipment, or the primary user equipment and the secondary user to the base station. device.

Preferably, the communication unit may be further configured to: receive one or more sets of modulation and coding formats and/or transmit power information pre-configured by the base station for the virtual cell; based on the pre-configured group or groups The modulation and coding format and/or transmit power information is negotiated to determine a modulation and coding format and/or transmit power that can be used by the virtual cell communication, and to communicate with each other. Alternatively, the communication unit may be further configured to: receive, by the base station, pre-configure one or more sets of modulation and coding formats and/or transmit power information for the virtual cell, and forward the virtual cell to the secondary user equipment. Preconfigured one or more sets of modulation and coding formats and/or transmit power information; determining, based on the received one or more sets of modulation and coding formats and/or transmit power information, a modulation that can be used by the virtual cell Encode the format and/or transmit power and communicate with each other.

Preferably, the communication unit may be further configured to determine a usage mode of the communication resource that the virtual cell can use and notify the secondary user device of the manner in which the determined communication resource is used.

Preferably, the manner of using the determined communication resource may include: a modulation and coding format and/or a transmit power used by the primary user equipment and the secondary user equipment to communicate in a virtual cell.

Fig. 8 shows a device-to-device terminal communication device on the base station side according to an embodiment of the present invention.

As shown in FIG. 8, the terminal communication device on the base station side according to an embodiment of the present invention may include a receiving unit 81 0, an allocating unit 820, and a transmitting unit 830. The receiving unit may receive location information or location assistance information of the first user equipment and the second user equipment from the first user equipment, or receive location information of the first user equipment and the second user from the first user equipment and the second user equipment, respectively Device bit The information is set, or the location assistance information of the first user equipment and the location assistance information of the second user equipment are respectively received from the first user equipment and the second user equipment. The allocating unit may allocate the communication resources that the virtual cell can use to the first user equipment and the second user equipment according to the location information or the location assistance information. The sending unit may send a virtual cell communication indication message to the first user equipment and the second user equipment, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes the first user equipment. And a second user device.

Preferably, the virtual cell communication indication message further includes primary user equipment indication information of the virtual cell, and the primary user equipment is any one of the first user equipment and the second user equipment.

Preferably, the virtual cell communication indication message further includes the primary user equipment indication information and the secondary user equipment indication information, where the primary user equipment is one of the first user equipment and the second user equipment, and the secondary user equipment Is the other of the first user equipment and the second user equipment.

Preferably, the receiving unit may further receive, by the first user equipment or the second user equipment, information about the primary user equipment and the secondary user equipment determined by the first user equipment and the second user equipment, the primary user The device is one of the first user equipment and the second user equipment, and the secondary user equipment is the other one of the first user equipment and the second user equipment.

Preferably, the sending unit may further send one or more sets of modulation and coding formats and/or transmit power information pre-configured for the virtual cell to the primary user equipment and/or the secondary user equipment.

The above-described apparatus according to an embodiment of the present invention corresponds technically to the method. For details of the technical details of the apparatus, reference may be made to the detailed description of the method, and no further description is made here to keep the specification clean.

It should be understood by those skilled in the art that the division of the device module in the embodiment of the present invention is a functional division, and the actual specific structure may be the splitting or merging of the above functional modules.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

The solution described in the claims is also the scope of protection of the embodiments of the present invention.

One of ordinary skill in the art will appreciate that all or part of the processing of the above-described embodiments can be accomplished by a program that instructs related hardware, which can be stored in a computer readable storage medium.

The above description is only the preferred embodiment of the present invention and is not intended to limit the scope of 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

Rights request

A device-to-device terminal communication method, comprising:

The first user equipment acquires information related to the distance, where the distance is a distance between the first user equipment and the second user equipment;

The first user equipment reports the distance-related information to the base station;

Transmitting, by the first user equipment or the second user equipment, a first device-to-device buffer status report to the base station, where the first device-to-device cache status report includes a buffer status report of the first user equipment and/or the second user equipment Cache status report;

The first user equipment receives resources and transmit power used by the base station to communicate device-to-device communication between the first user equipment and the second user equipment according to the first device-to-device buffer status report, according to the distance-related information And performing device-to-device communication based on resources and transmit power used by the device-to-device communication between the first user equipment and the second user equipment.

2. The method according to claim 1, wherein the processing by the first user equipment to report the distance-related information to the base station comprises:

The first user equipment determines whether the distance is less than a predetermined threshold based on the distance-related information. When the distance is less than a predetermined threshold, the first user equipment reports the distance-related information to the base station.

3. The method according to claim 1, wherein the processing by the first user equipment to report the distance-related information to the base station comprises:

Receiving an indication command sent by the base station to report the information related to the distance;

In response to the command from the base station, the first user equipment reports the distance related information to the base station.

The method according to any one of claims 1 to 3, wherein the first user equipment reports the distance-related information to the base station, and reports the label of the second user equipment to the base station. Knowledge.

The method according to any one of claims 1 to 4, wherein after the first user equipment reports the distance-related information to the base station, the method further includes: the first user equipment receiving the base station from the base station A notification to establish a communication connection with the second user equipment.

The method according to any one of claims 1-5, wherein the processing by the first user equipment or the second user equipment to send the first device-to-device buffer status report to the base station comprises:

Receiving, by the first user equipment, a second buffer status report sent by the second user equipment, and sending a first device-to-device cache status report to the base station, where the first device-to-device cache status report includes a cache status report of the first user equipment and a cache status report of the second user equipment;

Or,

Receiving an indication message of the base station, where the indication message is used to specify that the first user equipment or the second user equipment sends the first device-to-device buffer status report;

The first user equipment or the second user equipment sends a first device-to-device cache status report according to the indication message.

The method of any one of the preceding claims, wherein: before the first user equipment or the second user equipment sends the first device to the device buffer status report information, the method further includes: The user equipment or the second user equipment sends a first device-to-device scheduling request to the base station, where the first device-to-device scheduling request is used to request, from the base station, the first device-to-device buffer status report, including the first user. A scheduling request of the device or a scheduling request of the second user equipment, or a scheduling request of the first user equipment and the second user equipment.

The method according to any one of claims 1 to 7, wherein the receiving, by the first user equipment, the resource from the base station comprises: Receiving, by the receiving base station, the allocated resource information, where the resource information includes a proportion of resources that can be used by the first user equipment and the second user equipment;

The first user equipment uses the resources allocated by the base station according to the ratio.

The method according to claim 8, wherein the resource information further includes an effective time of the resource, and the first user equipment uses the resource allocated by the base station according to the effective time of the resource.

The method according to any one of claims 1 to 9, wherein the resource used by the device-to-device communication between the allocated first user equipment and the second user equipment is included as the first user equipment. The allocated transmission resource and the transmission resource allocated for the second user equipment;

When the transmission resource allocated for the first user equipment or the second user equipment has remaining resources, the first user equipment or the second user equipment adds a transmission end identifier to the sent data packet, so that the remaining resources can be Used by the second user equipment or the first user equipment;

Or,

When the transmission resource allocated to the first user equipment or the second user equipment has a remaining resource, the first user equipment or the second user equipment sends end identification information to the second user equipment or the first user equipment, so that the remaining resources are Can be used by the second user device or the first user device.

The method according to any one of claims 1 to 10, wherein the distance-related information comprises: path loss information between the first user equipment and the second user equipment, the first user equipment At least one of distance information with the second user equipment and an ultra short-range communication request indication.

12. A device-to-device terminal communication method, comprising:

The base station receives distance-related information from the first user equipment, where the distance is the first user The distance between the device and the second user device;

Receiving, by the base station, the first device to the device cache status report from the first user equipment or the second user equipment, where the first device-to-device cache status report includes a buffer status report of the first user equipment and/or the second user equipment Cache status report;

The base station allocates, by the first user equipment and the second user equipment, resources and transmit power used by the device to the device communication between the first user equipment and the second user equipment, where the resource and the transmit power are the base station responding to the first device The device cache status report is determined based on the distance-related information.

13. The method according to claim 12, wherein the receiving, by the base station, the information related to the distance from the first user equipment comprises:

The base station sends a command to the first user equipment to report the information related to the distance, 3⁄4;

The base station receives the distance related information from the first user equipment.

The method according to claim 12 or 13, wherein the base station further receives the identifier of the second user equipment while receiving the distance-related information from the first user equipment.

The method according to any one of claims 12-14, further comprising: the base station establishing a communication connection with the second user equipment according to the second user equipment identifier, and notifying the first user equipment of the communication connection The establishment of.

The method according to any one of claims 12 to 14, wherein after the base station receives the distance-related information from the first user equipment, the method further includes:

Determining, by the base station, the distance based on the distance-related information whether the distance is less than a predetermined threshold;

When the distance is less than a predetermined threshold, the base station sends a paging message to the second user equipment; and sends a notification to the first user equipment that the base station has established a communication connection with the second user equipment.

The method according to any one of claims 12-16, wherein the receiving, by the base station, the first device to the device cache status report from the first user device or the second user device comprises:

The base station specifies that the first user equipment or the second user equipment sends the first device to device buffer status report; the base station receives the first device to the device cache status report from the first user equipment or the second user equipment.

The method according to any one of claims 12-17, wherein before the base station receives the first device to the device buffer status report from the first user equipment or the second user equipment, the method further includes: receiving, by the base station a first device-to-device scheduling request reported by the first user equipment or the second user equipment, where the first device-to-device scheduling request is used to request, by the base station, the first device-to-device buffer status report resource, including the first A scheduling request of the user equipment or a scheduling request of the second user equipment, or a scheduling request of the first user equipment and the second user equipment.

The method according to any one of claims 12 to 18, wherein the base station allocates device-to-device communication between the first user equipment and the second user equipment for the first user equipment and the second user equipment. The processing of the used resource includes: the base station notifying the resource information allocated by the first user equipment and the second user equipment base station, where the resource information includes a resource ratio that the first user equipment and the second user equipment can use.

The method according to claim 19, further comprising: the base station notifying the effective time of the first user equipment and the second user equipment resource.

The method according to any one of claims 12 to 20, wherein the distance-related information comprises: path loss information between the first user equipment and the second user equipment, the first user equipment At least one of a distance information and a super short range communication request indication with the second user equipment.

22. A device-to-device terminal communication method, comprising:

The first user equipment sends location information or location assistance information of the first user equipment and the second user equipment to the base station;

Receiving, by the base station, a virtual cell communication indication message that is sent according to the location information or the location assistance information, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes the first user. a device and a second user device;

The first user equipment and the second user equipment communicate using communication resources that the virtual cell can use.

23. The method of claim 22, wherein

The virtual cell communication indication message further includes the primary user equipment indication information of the virtual cell, where the primary user equipment is any one of the first user equipment and the second user equipment; or

The virtual cell communication indication message further includes the primary user equipment indication information and the secondary user equipment indication information, where the primary user equipment is one of the first user equipment and the second user equipment, and the secondary user equipment is The other of the first user equipment and the second user equipment.

24. The method of claim 22, further comprising:

The first user equipment and the second user equipment negotiate to determine the primary user equipment in the first user equipment and the second user equipment, or determine the primary user equipment and the secondary user equipment.

The method of claim 24, further comprising:

The first user equipment or the second user equipment reports the determined primary user equipment, or the primary user equipment and the secondary user equipment, to the base station.

The method according to any one of claims 23-25, wherein the processing by the first user equipment and the second user equipment to communicate using the communication resources that the virtual cell can use includes:

And the primary user equipment and the secondary user equipment receive one or more sets of modulation and coding formats and/or transmit power information that are sent by the base station and are pre-configured for the virtual cell;

The primary user equipment and the secondary user equipment negotiate to determine a modulation and coding format and/or transmit power that can be used by the virtual cell communication based on the pre-configured one or more sets of modulation and coding formats and/or transmit power information, and perform mutual communication. ;

Or,

Receiving, by the primary user equipment, one or more sets of modulation and coding formats and/or transmit power information, configured by the base station, for the virtual cell, and forwarding, to the secondary user equipment, the group that is pre-configured as a virtual cell or Multiple sets of modulation coding formats and/or transmission power information;

Determining, by the primary user equipment and the secondary user equipment, a modulation and coding format and/or a transmit power that may be used by the virtual cell based on the received one or more sets of modulation and coding formats and/or transmit power information, and Communicate with each other.

The method of claim 23, wherein the processing by the first user equipment and the second user equipment by using communication resources that the virtual cell can use comprises: the primary user equipment determining the The manner of use of the communication resources that the virtual cell can use and notifying the secondary user equipment of the manner in which the determined communication resources are used.

The method of claim 27, wherein the determining the use of the communication resource comprises:

The modulation and coding format and/or transmission power used by the primary user equipment and the secondary user equipment for communication in the virtual cell.

A device-to-device terminal communication method, comprising:

Receiving, by the base station, location information or location assistance information of the first user equipment and the second user equipment, or receiving location information of the first user equipment and the second user equipment from the first user equipment and the second user equipment, respectively Location information, or receiving location assistance information of the first user equipment and location assistance information of the second user equipment from the first user equipment and the second user equipment, respectively;

And the base station allocates, to the first user equipment and the second user equipment, communication resources that can be used by the virtual cell according to the location information or the location assistance information;

Transmitting, by the first user equipment and the second user equipment, a virtual cell communication indication message, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes a first user equipment and a second User equipment.

30. The method of claim 29, wherein:

The method of claim 29, further comprising:

Receiving, by the first user equipment or the second user equipment, the information of the primary user equipment and the secondary user equipment determined by the first user equipment and the second user equipment, where the primary user equipment is the first user equipment And one of the second user equipments, the secondary user equipment being the other one of the first user equipment and the second user equipment.

The method of any of claims 29-31, further comprising: The base station transmits one or more sets of modulation and coding formats and/or transmit power information pre-configured for the virtual cell to the primary user equipment and/or the secondary user equipment.

33. A device-to-device terminal communication device on a user equipment side, comprising: an acquiring unit, configured to acquire distance-related information, wherein the distance is a first user equipment and a second user equipment Distance between

a reporting unit, configured to report the distance-related information to a base station;

a sending unit, configured to send a first device-to-device buffer status report to the base station, where the first device-to-device cache status report includes a buffer status report of the first user equipment and/or a buffer status report of the second user equipment;

a receiving unit, configured to receive, from the base station, a resource used by the device-to-device communication between the first user equipment and the second user equipment, which is allocated according to the first device-to-device buffer status report, according to the distance-related information Transmitting power and performing device-to-device communication based on resources and transmit power used by the device-to-device communication between the first user device and the second user device.

The device according to claim 33, wherein the sending unit is further configured to: receive a second buffer status report sent by the second user equipment, and send a first device-to-device buffer status report to the base station, where The first device-to-device cache status report includes a cache status report of the first user equipment and a cache status report of the second user equipment;

Or,

Sending a first device-to-device cache status report according to the indication message.

The device according to claim 33 or 34, wherein the resources received by the receiving unit include: The base station sends the allocated resource information, where the resource information includes a proportion of resources that the first user equipment and the second user equipment can use;

36. A device-to-device terminal communication device on a base station side, comprising: a first receiving unit, configured to receive distance-related information from a first user equipment, where the distance is a first user equipment The distance between the second user device and the second user device;

a second receiving unit, configured to receive, by the first user equipment or the second user equipment, a first device-to-device cache status report, where the first device-to-device cache status report includes a cache status report and/or a location of the first user equipment Decoding a cache status report of the second user equipment;

An allocating unit, configured to allocate, by the first user equipment and the second user equipment, resource and transmit power used by the device to the device between the first user equipment and the second user equipment, where the resource and the transmit power are The first device-to-device cache status report is determined based on the distance-related information.

The apparatus according to claim 36, wherein the distance-related information comprises: path loss information between the first user equipment and the second user equipment, the first user equipment and the second user equipment. At least one of the distance between the million information and the ultra short-range million communication request indication.

38. A device-to-device terminal communication device on a user equipment side, comprising: a sending unit, configured to send location information or location assistance information of the first user equipment and the second user equipment to the base station;

a receiving unit, configured to receive a virtual cell communication indication message that is sent by the base station according to the location information or location assistance information, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell; The cell includes a first user equipment and a second user equipment; and a communication unit, configured to communicate by using communication resources that the virtual cell can use.

39. Apparatus according to claim 38, wherein:

40. The apparatus according to claim 38 or 39, wherein the communication unit is further configured to:

Receiving one or more sets of modulation and coding formats and/or transmit power information pre-configured by the base station for the virtual cell;

Determining, based on the pre-configured one or more sets of modulation and coding formats and/or transmit power information, a modulation and coding format and/or transmit power that may be used by the virtual cell communication, and communicating with each other; or

Receiving, by the base station, pre-configuring one or more sets of modulation and coding formats and/or transmit power information for the virtual cell, and forwarding, to the secondary user equipment, the one or more sets of modulations that are pre-configured for the virtual cell Encoding format and/or transmission power information;

A modulation coding format and/or transmit power that can be used by the virtual cell is determined based on the received one or more sets of modulation and coding formats and/or transmit power information, and communicates with each other.

41. A device-to-device terminal communication device on a base station side, comprising: a receiving unit, configured to receive location information or location assistance information of the first user equipment and the second user equipment from the first user equipment, or Receiving the first use from the first user equipment and the second user equipment, respectively Position information of the user equipment and location information of the second user equipment, or receiving location assistance information of the first user equipment and a location assistance letter allocation unit of the second user equipment from the first user equipment and the second user equipment, respectively, according to The location information or location assistance information allocates communication resources that the virtual cell can use to the first user equipment and the second user equipment;

a sending unit, configured to send a virtual d, a regional communication indication message to the first user equipment and the second user equipment, where the virtual cell communication indication message includes communication resource information that can be used by the virtual cell, where the virtual cell includes The first user device and the second user device.

42. Apparatus according to claim 41 wherein: