CN104954968A

CN104954968A - Method and system for device-to-device communication on wireless local area network frequency band

Info

Publication number: CN104954968A
Application number: CN201410109826.1A
Authority: CN
Inventors: 毕奇; 洪伟; 陈鹏
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2014-03-24
Filing date: 2014-03-24
Publication date: 2015-09-30
Anticipated expiration: 2034-03-24
Also published as: CN104954968B

Abstract

The embodiment of the invention discloses a method and a system for device-to-device communication on a wireless local area network frequency band. The method comprises the following steps: a base station receives a D2D communication request message reported by a first mobile terminal, determines the configuration information of a WiFi module for processing a communication service on the WLAN frequency band according to the WiFi module information of the first mobile terminal and a second mobile terminal while determining that the communication service between the first mobile terminal and the second mobile terminal is processed on the WLAN frequency band, indicates one of the first mobile terminal and the second mobile terminal to initiate an IBSS on the basis of the configuration information of the WiFi module, and notifies the other mobile terminal to join the IBSS, so that the first mobile terminal and the second mobile terminal establish WiFi connection and process the communication service on the WLAN frequency band through D2D communication according to the configuration information of the WiFi module. The method and the system disclosed by the embodiment of the invention are capable of avoiding occupying the authorized frequency bands of the traditional cellular network, and generating interference on the traditional cellular communication service.

Description

Wireless local area network band carries out the method and system of device-to-device communication

Technical field

The present invention relates to the communication technology, especially a kind of method and system carrying out device-to-device (Device-to-Device, D2D) and communicate in WLAN (wireless local area network) (Wireless Local Area Network, WLAN) frequency range.

Background technology

Along with the develop rapidly of wireless communication technology, radio spectrum resources is more and more rare, but meanwhile, user to the speed of network and the successional requirement of the network coverage more and more higher, in limited bandwidth resources, therefore how to realize two-forty and wide covering becomes very important concerning operator.In third generation partner program (the3rd Generation Partnership Project, 3GPP) version (Release) 12, a kind of novel D2D communication technology is being discussed.As shown in Figure 1, be a principle schematic of the D2D communication technology in Long Term Evolution (Long Term Evolution, LTE) network.As shown in Figure 1, by this D2D communication technology, directly can communicate under the control of base station between the mobile terminal of close together, avoid the forwarding of base station, thus improve system effectiveness.

Realizing in process of the present invention, inventor finds, the existing D2D communication technology at least exists following problem:

The D2D communication technology that current 3GPP discusses is only limitted to occur in the D2D communication in legacy cellular net operation frequency.Because D2D communication occurs in traditional Cellular Networks operation frequency, occupy traditional mandate frequency range, base station considers how to be configured the resource communicated with D2D for traditional communication with regard to needing, and increases complexity; Further, interference may be produced to traditional cellular communication service, thus affect stability and the performance of communication system.

Summary of the invention

An embodiment of the present invention technical problem to be solved is: provide a kind of method and system carrying out device-to-device communication on wireless local area network band, to avoid taking legacy cellular net mandate frequency range, and avoid producing interference to traditional cellular communication service.

A kind of method of carrying out device-to-device communication on wireless local area network band that the embodiment of the present invention provides, comprising:

Base station receives the device-to-device D2D communication request message of the first mobile terminal reporting, described D2D communication request message reports when being communicated and carried out communication service by D2D by the first mobile terminal between needs and the second mobile terminal, and described D2D communication request message comprises the user ID id information of the first mobile terminal and the second mobile terminal;

When the communication service between WLAN (wireless local area network) WLAN frequency range process first mobile terminal and the second mobile terminal is determined in base station, determine the configuration information of the WiFi module of communication service described in the process of WLAN frequency range according to the WLAN (wireless local area network) WiFi module information of the first mobile terminal and the second mobile terminal;

Base station indicates a mobile terminal in the first mobile terminal and the second mobile terminal to initiate independent basic service set IBSS based on the configuration information of described WiFi module, and another mobile terminal notifying in the first mobile terminal and the second mobile terminal adds the IBSS that a described mobile terminal is initiated, so as the first mobile terminal and the second mobile terminal set up WiFi be connected and according to the configuration information of described WiFi module in WLAN frequency range by communication service described in D2D communication process.

In the method for another embodiment of the present invention, base station also comprises before receiving D2D communication request message:

The WiFi module information that reports when base station receives the first mobile terminal and the second mobile terminal access Long Term Evolution LTE network respectively, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information.

In the method for another embodiment of the present invention, in described D2D communication request message, also comprise the traffic type information of described communication service;

Base station also comprises after receiving the D2D communication request message of the first mobile terminal reporting:

Whether base station meets the first preset standard according to the network load condition of the type of service of described communication service and current LTE network, determines whether the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal.

In the method for another embodiment of the present invention, the configuration information of described WiFi module comprises target operational mode, target operation frequency range and default WiFi beacon period information;

WiFi module information according to the first mobile terminal and the second mobile terminal determines that the configuration information of the WiFi module of communication service described in the process of WLAN frequency range comprises:

According to the WiFi module information of the first mobile terminal and the second mobile terminal, select mode of operation that in the first mobile terminal and the second mobile terminal, WiFi module is all supported and working frequency range as target operational mode and target operation frequency range respectively;

Base station indicates a mobile terminal to initiate IBSS based on the configuration information of described WiFi module, and notifies that another mobile terminal adds the IBSS that described mobile terminal initiates and comprises:

Base station sends IBSS to a mobile terminal in the first mobile terminal and the second mobile terminal and initiates Indication message, and described IBSS initiates Indication message and to comprise described in the configuration information of WiFi module, D2D communication the identifier server SSID information of a mobile terminal to the IBSS of the mailing address of another mobile terminal described and needs initiation; And send IBSS to another mobile terminal in the first mobile terminal and the second mobile terminal and add Indication message, described IBSS add configuration information that Indication message comprises WiFi module communicate with D2D described in the SSID information of described IBSS that adds of the mailing address of a mobile terminal and needs;

A described mobile terminal is initiated Indication message according to described IBSS and is initiated IBSS;

Another mobile terminal described adds the communications address information of SSID in Indication message and a described mobile terminal according to described IBSS, inquires about IBSS that a described mobile terminal initiates and connects.

In the method for another embodiment of the present invention, the first mobile terminal and the second mobile terminal report WiFi module information especially by radio resource control RRC signaling;

Base station indicates a mobile terminal to initiate IBSS based on the configuration information of described WiFi module especially by RRC signaling, adds the IBSS of described mobile terminal initiation especially by another mobile terminal of RRC signaling.

In the method for another embodiment of the present invention, also comprise:

At the first mobile terminal and the second mobile terminal in the process by communication service described in D2D communication process, if monitor the service data transmitting efficiency of described communication service lower than Preset Transfer efficiency threshold value, first mobile terminal or the second mobile terminal send D2D communication transfer request message to base station, described D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal;

Base station, according to the second preset standard, determines whether the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, and other communication mode described is the communication mode in WLAN frequency range beyond D2D communication mode;

When determining the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, traffic transfer between first mobile terminal and the second mobile terminal carries out to other communication mode by base station, and send communication mode to the first mobile terminal and the second mobile terminal and shift acknowledge message, described communication mode transfer acknowledge message comprises the present communications mode information processing described communication service.

In the method for another embodiment of the present invention, other communication mode described comprises based on the D2D communication mode of LTE network frequency spectrum or the conventional communication mode based on mobile communications network.

In the method for another embodiment of the present invention, the traffic type information also comprising the described communication service needing call forwarding mode in described D2D communication transfer request message and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station;

Base station, according to the second preset standard, determines whether the traffic transfer between the first mobile terminal and the second mobile terminal to comprise to other communication mode:

Base station is according to the second preset standard, by the network load condition of the type of service of described communication service, current LTE network, the communications link signals intensity between mobile terminal and base station, determine whether by the traffic transfer between the first mobile terminal and the second mobile terminal to other communication mode, and determining the traffic transfer between the first mobile terminal and the second mobile terminal to determining during other communication mode that other communication mode specifically transferred to is as present communications mode.

In the method for another embodiment of the present invention, the first mobile terminal or the second mobile terminal send D2D communication transfer request message especially by physical layer signaling, MAC layer control unit MAC CE or RRC signaling to base station;

Base station sends communication mode especially by RRC signaling to the first mobile terminal and the second mobile terminal and shifts acknowledge message.

In the method for another embodiment of the present invention, the service data transmitting efficiency of described communication service comprises lower than Preset Transfer efficiency threshold value:

The service data transmission rate of described communication service lower than Preset Transfer rate threshold value and the duration exceed default D2D communication diversion time window length, or the transmission success rate of described communication service lower than Preset Transfer success rate threshold value and the duration exceed default D2D communication diversion time window length.

In the method for another embodiment of the present invention, also comprise:

Base station sends Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length by the RRC signaling of broadcast or clean culture respectively to the first mobile terminal and the second mobile terminal; Or base station is initiated Indication message by IBSS and is sent Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length to a mobile terminal in the first mobile terminal and the second mobile terminal, adds Indication message send Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length to another mobile terminal in the first mobile terminal and the second mobile terminal by IBSS;

First mobile terminal and the second mobile terminal store described Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length respectively.

A kind of mobile terminal that the embodiment of the present invention provides, comprising:

Mobile comm unit, for reporting D2D communication request message when needs are communicated with another mobile terminal carried out communication service by D2D to base station, described D2D communication request message comprises the user ID information of described mobile terminal and another mobile terminal described, and the IBSS receiving base station transmission initiates Indication message, described IBSS initiates the configuration information being included in the WiFi module of communication service described in the process of WLAN frequency range in Indication message, described in D2D communication, mobile terminal is to the mailing address of another mobile terminal described and the SSID information needing the IBSS initiated, or the IBSS receiving base station transmission adds Indication message, described IBSS adds the configuration information that Indication message comprises described WiFi module, the SSID information of the described IBSS that the mailing address of another mobile terminal described in D2D communication and needs add, the configuration information of described WiFi module is determined by the WiFi module information of base station according to the first mobile terminal and the second mobile terminal,

WiFi module, during for receiving IBSS initiation Indication message at mobile comm unit, initiate Indication message according to described IBSS and initiate IBSS, or mobile comm unit receive IBSS add Indication message time, the IBSS that communications address information inquiry another mobile terminal described adding the SSID in Indication message and another mobile terminal described according to described IBSS is initiated also is connected; And setting up after WiFi is connected with another mobile terminal, according to the configuration information of described WiFi module in WLAN frequency range by communication service described in D2D communication process.

In the mobile terminal of another embodiment of the present invention, described mobile comm unit, also for report the WiFi module information in this mobile terminal to base station when accessing LTE network, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information;

The configuration information of described WiFi module comprises target operational mode, target operation frequency range and default WiFi beacon period information.

In the mobile terminal of another embodiment of the present invention, also comprise:

Whether monitoring means, in the process by communication service described in D2D communication process in described WiFi module and another mobile terminal, monitor the service data transmitting efficiency of described communication service lower than Preset Transfer efficiency threshold value;

Described mobile comm unit, also for the monitoring result according to described detecting unit, when the service data transmitting efficiency of described communication service is lower than Preset Transfer efficiency threshold value, send D2D communication transfer request message to base station, described D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal; And receiving the communication mode transfer acknowledge message of base station transmission, described communication mode transfer acknowledge message comprises the present communications mode information processing described communication service.

In the mobile terminal of another embodiment of the present invention, the service data transmitting efficiency of described communication service comprises lower than Preset Transfer efficiency threshold value:

In the mobile terminal of another embodiment of the present invention, described mobile comm unit, also for receiving Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length that base station sends;

Described mobile terminal also comprises: memory cell, for storing described Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length.

A kind of base station that the embodiment of the present invention provides, comprising:

Receiving element, for receiving the D2D communication request message of the first mobile terminal reporting, described D2D communication request message reports when being communicated and carried out communication service by D2D by the first mobile terminal between needs and the second mobile terminal, and described D2D communication request message comprises the user ID information of the first mobile terminal and the second mobile terminal;

Determining unit, during for determining the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal, determine the configuration information of the WiFi module of communication service described in the process of WLAN frequency range according to the WiFi module information of the first mobile terminal and the second mobile terminal;

Transmitting element, the mobile terminal be used to indicate in the first mobile terminal and the second mobile terminal initiates IBSS based on the configuration information of described WiFi module, and another mobile terminal notifying in the first mobile terminal and the second mobile terminal adds the IBSS that a described mobile terminal is initiated.

In the base station of another embodiment of the present invention, described receiving element, the WiFi module information that reports time also for receiving the first mobile terminal and the second mobile terminal access LTE network respectively, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information.

In the base station of another embodiment of the present invention, in described D2D communication request message, also comprise the traffic type information of described communication service;

Described determining unit, also for after receiving D2D communication request message at receiving element, whether meet the first preset standard according to the type of service of described communication service and the network load condition of current LTE network, determine whether the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal.

In the base station of another embodiment of the present invention, the configuration information of described WiFi module comprises target operational mode, target operation frequency range and default WiFi beacon period;

Described determining unit, specifically according to the WiFi module information of the first mobile terminal and the second mobile terminal, selects mode of operation that in the first mobile terminal and the second mobile terminal, WiFi module is all supported and working frequency range as target operational mode and target operation frequency range respectively;

Described transmitting element initiates Indication message especially by sending IBSS to a mobile terminal in the first mobile terminal and the second mobile terminal, a mobile terminal is indicated to initiate IBSS based on the configuration information of described WiFi module, Indication message is added especially by sending IBSS to another mobile terminal in the first mobile terminal and the second mobile terminal, notify that another mobile terminal adds the IBSS of described mobile terminal initiation, described IBSS initiates the configuration information that Indication message comprises WiFi module, described in D2D communication, a mobile terminal is to the mailing address of another mobile terminal described and the SSID information needing the IBSS initiated, described IBSS add configuration information that Indication message comprises WiFi module communicate with D2D described in the SSID information of described IBSS that adds of the mailing address of a mobile terminal and needs.

In the base station of another embodiment of the present invention, described receiving element, also for receiving the D2D communication transfer request message of the first mobile terminal or the transmission of the second mobile terminal, described D2D communication transfer request message by the first mobile terminal or the second mobile terminal in the process by communication service described in D2D communication process, the service data transmitting efficiency monitoring described communication service is initiated lower than during Preset Transfer efficiency threshold value, and described D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal;

Described determining unit, also for according to the second preset standard, determine whether the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, other communication mode described is the communication mode in WLAN frequency range beyond D2D communication mode;

Described base station also comprises: Service Processing Unit, during for determining the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode in determining unit, traffic transfer between first mobile terminal and the second mobile terminal is carried out to other communication mode, and indicates transmitting element to send communication mode to the first mobile terminal and the second mobile terminal to shift acknowledge message;

Described transmitting element, also sends communication mode to the first mobile terminal and the second mobile terminal and shifts acknowledge message, and described communication mode transfer acknowledge message comprises the present communications mode information processing described communication service.

In the base station of another embodiment of the present invention, the traffic type information also comprising the described communication service needing call forwarding mode in described D2D communication transfer request message and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station;

Described determining unit is specifically according to the second preset standard, by the network load condition of the type of service of described communication service, current LTE network, the communications link signals intensity between mobile terminal and base station, determine whether by the traffic transfer between the first mobile terminal and the second mobile terminal to other communication mode, and determining the traffic transfer between the first mobile terminal and the second mobile terminal to determining during other communication mode that other communication mode specifically transferred to is as present communications mode.

A kind of communication system that the embodiment of the present invention provides, comprising:

First mobile terminal, for reporting D2D communication request message when needs are communicated with the second mobile terminal carried out communication service by D2D to base station, described D2D communication request message comprises the user ID information of described first mobile terminal and described second mobile terminal; And setting up after WiFi is connected with the second mobile terminal, the configuration information of the WiFi module determined according to base station in WLAN frequency range by communication service described in D2D communication process;

Base station, for receiving the D2D communication request message of the first mobile terminal reporting, and when determining the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal, determine the configuration information of the WiFi module of communication service described in the process of WLAN frequency range according to the WiFi module information of the first mobile terminal and the second mobile terminal; And a mobile terminal in instruction the first mobile terminal and the second mobile terminal initiates IBSS based on the configuration information of described WiFi module, and another mobile terminal notifying in the first mobile terminal and the second mobile terminal adds the IBSS that a described mobile terminal is initiated.

In the communication system of another embodiment of the present invention, described first mobile terminal, also for reporting WiFi module information when accessing LTE network to described base station, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information;

Described communication system also comprises: the second mobile terminal, and for reporting WiFi module information when accessing LTE network to described base station, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information.

In the communication system of another embodiment of the present invention, in described D2D communication request message, also comprise the traffic type information of described communication service;

Described base station, also for after receiving D2D communication request message, whether meet the first preset standard according to the type of service of described communication service and the network load condition of current LTE network, determine whether the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal.

In the communication system of another embodiment of the present invention, the configuration information of described WiFi module comprises target operational mode, target operation frequency range and default WiFi beacon period information;

Described base station, specifically according to the WiFi module information of the first mobile terminal and the second mobile terminal, selects mode of operation that in the first mobile terminal and the second mobile terminal, WiFi module is all supported and working frequency range as target operational mode and target operation frequency range respectively;

Described base station indicate a mobile terminal based on described WiFi module configuration information initiate IBSS time, specifically send IBSS to a mobile terminal in the first mobile terminal and the second mobile terminal and initiate Indication message, described IBSS initiates Indication message and to comprise described in the configuration information of WiFi module, D2D communication the SSID information of a mobile terminal to the IBSS of the mailing address of another mobile terminal described and needs initiation; When notifying that another mobile terminal adds the IBSS of described mobile terminal initiation, specifically send IBSS to another mobile terminal in the first mobile terminal and the second mobile terminal and add Indication message, described IBSS add configuration information that Indication message comprises WiFi module communicate with D2D described in the SSID information of described IBSS that adds of the mailing address of a mobile terminal and needs;

A described mobile terminal is specifically initiated Indication message according to described IBSS and is initiated IBSS;

The IBSS that the described mobile terminal of communications address information inquiry that another mobile terminal described specifically adds the SSID in Indication message and a described mobile terminal according to described IBSS is initiated also is connected.

In the communication system of another embodiment of the present invention, described first mobile terminal or the second mobile terminal, also for passing through in the process of communication service described in D2D communication process with counterpart mobile terminal, whether monitor the service data transmitting efficiency of described communication service lower than Preset Transfer efficiency threshold value, and monitoring the service data transmitting efficiency of described communication service lower than Preset Transfer efficiency threshold value, D2D communication transfer request message is sent to base station, described D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal,

Described base station, also for according to the second preset standard, determine whether the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, other communication mode described is the communication mode in WLAN frequency range beyond D2D communication mode; When determining the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, traffic transfer between first mobile terminal and the second mobile terminal is carried out to other communication mode, and send communication mode to the first mobile terminal and the second mobile terminal and shift acknowledge message, described communication mode transfer acknowledge message comprises the present communications mode information processing described communication service.

In the communication system of another embodiment of the present invention, other communication mode described comprises based on the D2D communication mode of LTE network frequency spectrum or the conventional communication mode based on mobile communications network.

In the communication system of another embodiment of the present invention, the traffic type information also comprising the described communication service needing call forwarding mode in described D2D communication transfer request message and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station;

Described base station is specifically according to the second preset standard, by the network load condition of the type of service of described communication service, current LTE network, the communications link signals intensity between mobile terminal and base station, determine whether by the traffic transfer between the first mobile terminal and the second mobile terminal to other communication mode, and determining the traffic transfer between the first mobile terminal and the second mobile terminal to determining during other communication mode that other communication mode specifically transferred to is as present communications mode.

In the communication system of another embodiment of the present invention, the service data transmitting efficiency of described communication service comprises lower than Preset Transfer efficiency threshold value:

In the communication system of another embodiment of the present invention, described base station, also for sending Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length to the first mobile terminal and the second mobile terminal;

Described first mobile terminal, also for storing described Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length;

Described second mobile terminal, also for storing described Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length.

Based on the method for carrying out device-to-device communication on wireless local area network band that the above embodiment of the present invention provides, communication system, mobile terminal and base station, after base station receives the D2D communication request message of the first mobile terminal reporting, when determining the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal, the configuration information of WiFi module is determined according to the WiFi module information of the first mobile terminal and the second mobile terminal, one of them mobile terminal is indicated to initiate IBSS based on the configuration information of this WiFi module, and notify that another mobile terminal adds this IBSS, first mobile terminal and the second mobile terminal set up WiFi be connected after can according to the configuration information of WiFi module in WLAN frequency range by the communication service of D2D communication process.Compared with prior art, the embodiment of the present invention at least has following Advantageous Effects:

Noisy unauthorized frequency range does not achieve D2D communicate with legacy cellular net mandate frequency range, save the frequency spectrum resource of conventional mobile communications network, and consider how the frequency resource communicated with D2D for traditional communication is configured without the need to base station, reduce complexity, and interference can not be produced to traditional cellular communication service;

Base station to whether in WLAN frequency range, carry out communication service by D2D communication mode and to customer mobile terminal in the operation configuration of WIFI module there is control ability, ensure that the stable of communication system and performance;

Mobile terminal can report oneself WIFI module information when accessing LTE network to base station, make base station more accurate for the configuration of WIFI module, facilitate;

Mobile terminal can ask base station by communication service from the D2D communication diversion WLAN frequency range to LTE frequency range on or stop D2D communication then use the conventional communication mode of mobile communications network, achieve the flexible conversion of communication mode, more reasonably can utilize Internet resources, improve business efficiency.

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.

Accompanying drawing explanation

What form a part for specification drawings describes embodiments of the invention, and is used from explanation principle of the present invention together with description one.

With reference to accompanying drawing, according to detailed description below, clearly the present invention can be understood, wherein:

Fig. 1 is a principle schematic of the D2D communication technology in LTE network.

Fig. 2 is the flow chart that the present invention carries out a method embodiment of D2D communication in WLAN frequency range.

Fig. 3 is the flow chart that the present invention carries out another embodiment of method of D2D communication in WLAN frequency range.

Fig. 4 is the flow chart that the present invention carries out another embodiment of method of D2D communication in WLAN frequency range.

Fig. 5 is the structural representation of a mobile terminal of the present invention embodiment.

Fig. 6 is the structural representation of the embodiment in base station of the present invention.

Fig. 7 is the structural representation of the unified embodiment of communication system of the present invention.

Embodiment

Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.

Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.

Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.

May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part for specification.

In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.

It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.

Fig. 2 is the flow chart that the present invention carries out a method embodiment of D2D communication in WLAN frequency range.As shown in Figure 2, the method that this embodiment carries out D2D communication in WLAN frequency range comprises:

110, base station receives the D2D communication request message of the first mobile terminal reporting, this D2D communication request message reports when being communicated and carried out communication service by D2D by the first mobile terminal between needs and the second mobile terminal, and D2D communication request message comprises the user ID id information of the first mobile terminal and the second mobile terminal.

The mobile phone users of user ID unique identification wherein.

120, base station is determined at WLAN (wireless local area network) (Wireless Local Area Network, during communication service WLAN) between frequency range process first mobile terminal and the second mobile terminal, the configuration information of the WiFi module in WLAN frequency range process communication service is determined according to the WLAN (wireless local area network) based on IEEE802.11b standard (Wireless Fidelity, the WiFi) module information of the first mobile terminal and the second mobile terminal.

130, base station indicates a mobile terminal in the first mobile terminal and the second mobile terminal to initiate independent basic service set (Independent Basic Service Set based on the configuration information of WiFi module, and notify that another mobile terminal in the first mobile terminal and the second mobile terminal adds this IBSS IBSS).

Exemplarily, wireless heterogeneous networks (Radio Resource Control specifically can be passed through in base station, RRC) signaling indicates a mobile terminal to initiate IBSS based on the configuration information of WiFi module, adds the IBSS of a mobile terminal initiation especially by another mobile terminal of RRC signaling.

After another mobile terminal adds this IBSS, the first mobile terminal and the second mobile terminal just establish WiFi and are connected.

140, first mobile terminal and the second mobile terminal are set up after WiFi is connected, according to the configuration information of WiFi module in WLAN frequency range by the communication service of D2D communication process.

In WLAN frequency range, the embodiment of the method for D2D communication is carried out based on the invention described above, noisy unauthorized frequency range does not achieve D2D communicate with legacy cellular net mandate frequency range, save the frequency spectrum resource of conventional mobile communications network, and consider how the frequency resource communicated with D2D for traditional communication is configured without the need to base station, reduce complexity, and interference can not be produced to traditional cellular communication service; Base station to whether in WLAN frequency range, carry out communication service by D2D communication mode and to customer mobile terminal in the operation configuration of WIFI module there is control ability, ensure that the stable of communication system and performance.

Carry out in another embodiment of the method for D2D communication in WLAN frequency range in the present invention, before operation 110, first mobile terminal and the second mobile terminal can when accessing Long Term Evolution (LTE) network, report the WiFi module information of oneself respectively, the mode of operation of such as WiFi module, the information such as working frequency range and mailing address.Such as, can also report out of Memory according to the real needs of communication service, such as whether Service supportive quality (QoS) ensures.The such as 802.11ac/n of mode of operation wherein, working frequency range is 5GHz, 2.4GHz such as, and mailing address is the hardware address of WiFi module, such as, can be MAC layer (MAC) address of WiFi module.

Such as, in the WiFi module information of the first mobile terminal reporting, mode of operation is 802.11ac/n, and working frequency range is 5GHz, and MAC Address is xxx; In the WiFi module information of the second mobile terminal reporting, mode of operation is 802.11n, and working frequency range is 5GHz and 2.4GHz, and MAC Address is yyy.

Exemplarily, the first mobile terminal and the second mobile terminal specifically can report the WiFi module information of oneself by RRC signaling.

Carry out in the present invention in another embodiment of the method for D2D communication in WLAN frequency range, in the D2D communication request message that the first mobile terminal sends to base station, the traffic type information needing the communication service carrying out D2D communication can also be comprised.Correspondingly, in this embodiment after operation 110 embodiment illustrated in fig. 2, whether the network load condition of type of service and current LTE network that base station can consider communication service in D2D communication request message meets the first preset standard, determines whether the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal.If determine the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal, executable operations 120.Otherwise, if determine the communication service not between WLAN frequency range process first mobile terminal and the second mobile terminal, then indicate the first mobile terminal and the D2D communication mode of the second mobile terminal based on LTE network frequency spectrum or the communication service between conventional communication mode process first mobile terminal based on mobile communications network and the second mobile terminal.Wherein, those skilled in the art can know the related procedure of the first mobile terminal and the D2D communication mode of the second mobile terminal based on LTE network frequency spectrum or the communication service between conventional communication mode process first mobile terminal based on mobile communications network and the second mobile terminal based on prior art, repeat no more in the embodiment of the present invention.

Such as, first preset standard regulation, the type of service of communication service is some type of service (is such as file transfer protocol (FTP) (File Transfer Protocol, FTP) transport service) and the offered load of current LTE network higher than default offered load threshold value time, D2D communication mode process communication service can be passed through in WLAN frequency range, if in an embody rule, want between first mobile phone users and the second mobile phone users to carry out FTP transport service and the offered load of current LTE network higher than default offered load threshold value, then base station determines this communication service to be operated in WLAN frequency range in D2D mode.

In WLAN frequency range, carry out a concrete example of the embodiment of the method for D2D communication according to the present invention and unrestricted, the configuration information of WiFi module exemplarily can comprise target operational mode, target operation frequency range and default WiFi beacon period.Wherein, SSID can be such as " IBSS of user 1 ", for identifying the IBSS that a customer mobile terminal is initiated; WiFi beacon period can be such as 100ms, can keep the broadcast of the synchronous and wlan system information of wlan system in subsequent communications process according to this cycle.

Fig. 3 is the flow chart that the present invention carries out another embodiment of method of D2D communication in WLAN frequency range.As shown in Figure 3, the method that this embodiment carries out D2D communication in WLAN frequency range comprises:

210, base station receives the device-to-device D2D communication request message of the first mobile terminal reporting, this D2D communication request message reports when being communicated and carried out communication service by D2D by the first mobile terminal between needs and the second mobile terminal, and D2D communication request message comprises the user ID id information of the first mobile terminal and the second mobile terminal.

220, when the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal is determined in base station, according to the WiFi module information of the first mobile terminal and the second mobile terminal, select mode of operation that in the first mobile terminal and the second mobile terminal, WiFi module is all supported and working frequency range as target operational mode and target operation frequency range respectively, determine the configuration information of the WiFi module in WLAN frequency range process communication service, comprise target operational mode, target operation frequency range and default WiFi beacon (beacon) cycle information.

Exemplarily, if in the first mobile terminal and the second mobile terminal there is not the common mode of operation supported and working frequency range in WiFi module, then be not used in the D2D communication mode in WLAN frequency range, other communication mode can be used, such as, based on the D2D communication mode of LTE network frequency spectrum or the conventional communication mode based on mobile communications network, process this communication service.

230, base station sends IBSS to a mobile terminal in the first mobile terminal and the second mobile terminal and initiates Indication message, this IBSS initiates Indication message and comprises identifier server (the Service Set Identifier to the IBSS of the communications address information of another mobile terminal and needs initiation of mobile terminal in the configuration information of WiFi module, D2D communication, SSID) information, SSID is used for unique identification IBSS; And send IBSS to another mobile terminal in the first mobile terminal and the second mobile terminal and add Indication message, this IBSS add Indication message comprise that the mailing address of a mobile terminal in the configuration information of WiFi module, D2D communication and needs add, by the SSID information of an above-mentioned mobile terminal IBSS.

240, an above-mentioned mobile terminal is initiated Indication message according to IBSS and is initiated IBSS.

250, another mobile terminal above-mentioned adds the communications address information of SSID in Indication message and an above-mentioned mobile terminal according to IBSS, and inquiry identifies that the IBSS that a described mobile terminal is initiated also connects.

260, first mobile terminal and the second mobile terminal are set up after WiFi is connected, according to the configuration information of WiFi module in WLAN frequency range by the communication service of D2D communication process.

Based on above-mentioned embodiment of the method for carrying out D2D communication in WLAN frequency range, mobile terminal can report oneself WIFI module information when accessing LTE network to base station, the mode of operation all supported by WiFi module in base station selected first mobile terminal and the second mobile terminal and working frequency range are as target operational mode and target operation frequency range, determine the configuration information of the WiFi module in WLAN frequency range process communication service, make base station more accurate for the configuration of WIFI module, convenient.

Fig. 4 is the flow chart that the present invention carries out another embodiment of method of D2D communication in WLAN frequency range.As shown in Figure 4, compared with the embodiment shown in Fig. 2 or Fig. 3, this embodiment also comprises:

310, pass through in the process of D2D communication process communication service at the first mobile terminal and the second mobile terminal, if monitor the service data transmitting efficiency of communication service lower than Preset Transfer efficiency threshold value, first mobile terminal or the second mobile terminal send D2D communication transfer request message to base station, this D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal.

320, base station, according to the second preset standard, determines whether the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode.Wherein, other communication mode is the communication mode in WLAN frequency range beyond D2D communication mode, such as, based on the D2D communication mode of LTE network frequency spectrum or the conventional communication mode based on mobile communications network.

If determine, the traffic transfer between the first mobile terminal and the second mobile terminal is carried out to other communication mode, perform the operation of 330.Otherwise, the traffic transfer between the first mobile terminal and the second mobile terminal is not carried out to other communication mode if determine, does not perform the follow-up flow process of the present embodiment.

330, traffic transfer between first mobile terminal and the second mobile terminal carries out to other communication mode by base station, that is: between the first mobile terminal and the second mobile terminal with other communication mode again initiating communication business, and send communication mode to the first mobile terminal and the second mobile terminal and shift acknowledge message, this communication mode transfer acknowledge message comprises the present communications mode information of process communication service.

Based on above-mentioned embodiment of the method for carrying out D2D communication in WLAN frequency range, if WLAN frequency range is lower to efficiency of transmission because competition becomes D2D user, mobile terminal can ask base station by communication service from the D2D communication diversion WLAN frequency range to LTE frequency range on or stop D2D communication then use the conventional communication mode of mobile communications network, achieve the flexible conversion of communication mode, more reasonably can utilize Internet resources, improve business efficiency.

Carry out in another embodiment of method of D2D communication in WLAN frequency range in the present invention, the traffic type information that can also comprise the communication service needing call forwarding mode in the D2D communication transfer request message that mobile terminal sends and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station.Correspondingly, in this embodiment, operate 320 specifically can realize in the following way:

Base station is according to the second preset standard, considered by combined factors such as the network load condition of the type of service of communication service, current LTE network, the communications link signals intensity between mobile terminal and base station, determine whether by the traffic transfer between the first mobile terminal and the second mobile terminal to other communication mode, and determining the traffic transfer between the first mobile terminal and the second mobile terminal to determining during other communication mode that other communication mode specifically transferred to is as present communications mode.

Such as, second preset standard regulation, the type of service of communication service be type of service beyond some type of service and the communications link signals intensity of the offered load of current LTE network not higher than default offered load threshold value and between mobile terminal and base station higher than default link signal strength, this traffic transfer can be carried out to the conventional communication mode based on mobile communications network; The type of service of communication service is type of service beyond some type of service and the communications link signals intensity of the offered load of current LTE network not higher than default offered load threshold value and between mobile terminal and base station is preset link signal strength and second between first and preset between link signal strength, this traffic transfer can be carried out to the D2D communication mode based on LTE network frequency spectrum.Second preset standard can according to circumstances need to pre-set and can adjust flexibly.

Exemplarily, the first mobile terminal or the second mobile terminal specifically can pass through physical (L1) signaling, MAC layer control unit (MAC CE) or RRC signaling to base station transmission D2D communication transfer request message.Base station specifically can send communication mode by RRC signaling to the first mobile terminal and the second mobile terminal and shift acknowledge message.

Unrestricted according to a concrete example of said method embodiment of the present invention, the service data transmitting efficiency of communication service lower than Preset Transfer efficiency threshold value can be specifically: the service data transmission rate of communication service lower than Preset Transfer rate threshold value and the duration exceed default D2D communication diversion time window length, or the transmission success rate of communication service lower than Preset Transfer success rate threshold value (being equivalent to packet loss higher than predetermined threshold value) and the duration exceed default D2D communication diversion time window length.

Further, carry out, in another embodiment of method of D2D communication, can also comprising in WLAN frequency range in the present invention:

First mobile terminal and the second mobile terminal store Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length respectively.

One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.

Fig. 5 is the structural representation of a mobile terminal of the present invention embodiment.The mobile terminal of this embodiment can be used in the present invention the above-mentioned corresponding function respectively carrying out the first mobile terminal or the second mobile terminal in the method for D2D communication in WLAN frequency range.As shown in Figure 5, it comprises mobile comm unit and WiFi module.

Wherein, mobile comm unit, for reporting D2D communication request message when needs are communicated with another mobile terminal carried out communication service by D2D to base station, comprising the user ID information of mobile terminal and another mobile terminal; And the IBSS receiving base station transmission initiates Indication message, this IBSS to initiate to be included in Indication message in the configuration information of the WiFi module of WLAN frequency range process communication service, D2D communication mobile terminal to the mailing address of another mobile terminal and the SSID information needing the IBSS initiated, or receive the IBSS that base station sends and add Indication message, this IBSS adds the SSID information that Indication message comprises the IBSS that the mailing address of another mobile terminal and needs add in the configuration information of WiFi module, D2D communication.Wherein, the configuration information of WiFi module is determined by the WiFi module information of base station according to the first mobile terminal and the second mobile terminal.

WiFi module, during for receiving IBSS initiation Indication message at mobile comm unit, initiate Indication message according to this IBSS and initiate IBSS, or mobile comm unit receive IBSS add Indication message time, add the SSID in Indication message and the communications address information of another mobile terminal according to this IBSS and inquire about IBSS that another mobile terminal initiates and be connected; And setting up after WiFi is connected with another mobile terminal, according to the configuration information of WiFi module in WLAN frequency range by the communication service of D2D communication process.

In another embodiment of mobile terminal of the present invention, mobile comm unit to report the WiFi module information in this mobile terminal to base station when being also used in access LTE network, this WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information, correspondingly, the configuration information of WiFi module exemplarily can comprise target operational mode, target operation frequency range and default WiFi beacon period information.

Again see Fig. 5, in another embodiment at mobile terminal of the present invention, monitoring means can also be comprised, for passing through, in the process of D2D communication process communication service, whether to monitor the service data transmitting efficiency of this communication service lower than Preset Transfer efficiency threshold value in WiFi module and another mobile terminal.Correspondingly, mobile comm unit can also be used for the monitoring result according to detecting unit, when the service data transmitting efficiency of communication service is lower than Preset Transfer efficiency threshold value, D2D communication transfer request message is sent, comprising the user ID information of the first mobile terminal and the second mobile terminal to base station; And receive the communication mode transfer acknowledge message of base station transmission, comprising the present communications mode information of process communication service.

Exemplarily, the service data transmitting efficiency of communication service lower than Preset Transfer efficiency threshold value can be, the service data transmission rate of this communication service lower than Preset Transfer rate threshold value and the duration exceed default D2D communication diversion time window length, or the transmission success rate of this communication service lower than Preset Transfer success rate threshold value and the duration exceed default D2D communication diversion time window length.

In another embodiment of mobile terminal of the present invention, mobile comm unit also can be used for Preset Transfer rate threshold value, Preset Transfer success rate threshold value and the default D2D communication diversion time window length that reception base station sends.Correspondingly, then see Fig. 5, the mobile terminal of this embodiment can also comprise memory cell, for Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length that storing mobile communication unit receives.

Fig. 6 is the structural representation of the embodiment in base station of the present invention.The base station of this embodiment can be used in the present invention the above-mentioned corresponding function respectively carrying out base station in the method for D2D communication in WLAN frequency range.As shown in Figure 6, it comprises receiving element, determining unit and transmitting element.

Wherein, receiving element is for receiving the D2D communication request message of the first mobile terminal reporting, this D2D communication request message reports when being communicated and carried out communication service by D2D by the first mobile terminal between needs and the second mobile terminal, and this D2D communication request message comprises the user ID information of the first mobile terminal and the second mobile terminal.

When determining unit is for determining the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal, determine the configuration information of the WiFi module in WLAN frequency range process communication service according to the WiFi module information of the first mobile terminal and the second mobile terminal.

The configuration information that transmitting element is used to indicate the WiFi module that a mobile terminal in the first mobile terminal and the second mobile terminal is determined based on determining unit initiates IBSS, and another mobile terminal notifying in the first mobile terminal and the second mobile terminal adds the IBSS that a mobile terminal is initiated.

In another embodiment of base station of the present invention, the WiFi module information that receiving element reports when also can be used for receiving respectively the first mobile terminal and the second mobile terminal access LTE network, this WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information.

In another embodiment of base station of the present invention, the traffic type information of communication service in the D2D communication request message of mobile terminal reporting, can also be comprised.Correspondingly, in this embodiment, determining unit is also used in after receiving element receives D2D communication request message, whether meet the first preset standard according to the type of service of communication service and the network load condition of current LTE network, determine whether the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal.

In another embodiment of base station of the present invention, the configuration information of WiFi module specifically can comprise target operational mode, target operation frequency range and default WiFi beacon period information.Correspondingly, in this embodiment, determining unit, specifically according to the WiFi module information of the first mobile terminal and the second mobile terminal, selects mode of operation that in the first mobile terminal and the second mobile terminal, WiFi module is all supported and working frequency range as target operational mode and target operation frequency range respectively.Transmitting element initiates Indication message especially by sending IBSS to a mobile terminal in the first mobile terminal and the second mobile terminal, a mobile terminal is indicated to initiate IBSS based on the configuration information of WiFi module, adding Indication message especially by sending IBSS to another mobile terminal in the first mobile terminal and the second mobile terminal, notifying that another mobile terminal adds the IBSS of a mobile terminal initiation.IBSS wherein initiates Indication message and to comprise in the configuration information of WiFi module, D2D communication a mobile terminal to the SSID information of the IBSS that the mailing address of another mobile terminal and needs are initiated, IBSS add configuration information that Indication message comprises WiFi module communicate with D2D in the SSID information of IBSS that adds with needs of the mailing address of a mobile terminal.

Again see Fig. 6, in another embodiment of base station of the present invention, base station also comprises Service Processing Unit.In this embodiment, receiving element also can be used for the D2D communication transfer request message of reception first mobile terminal or the transmission of the second mobile terminal, this D2D communication transfer request message by the first mobile terminal or the second mobile terminal by the process of D2D communication process communication service, the service data transmitting efficiency monitoring communication service is initiated lower than during Preset Transfer efficiency threshold value, and this D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal.Determining unit is also for according to the second preset standard, and determine whether the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, other communication mode is the communication mode in WLAN frequency range beyond D2D communication mode.Service Processing Unit is used for when determining unit determines the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, traffic transfer between first mobile terminal and the second mobile terminal is carried out to other communication mode, and indicates transmitting element to send communication mode to the first mobile terminal and the second mobile terminal to shift acknowledge message.Transmitting element also shifts acknowledge message for sending communication mode to the first mobile terminal and the second mobile terminal, and this communication mode transfer acknowledge message comprises the present communications mode information of process communication service.

Further, in the above-described embodiments, the traffic type information that can also comprise the communication service needing call forwarding mode in the D2D communication transfer request message of mobile terminal reporting and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station.Correspondingly, determining unit is specifically according to the second preset standard, considered by the network load condition of the type of service of communication service in D2D communication transfer request message, current LTE network, the communications link signals intensity between mobile terminal and base station, determine whether by the traffic transfer between the first mobile terminal and the second mobile terminal to other communication mode, and determining the traffic transfer between the first mobile terminal and the second mobile terminal to determining during other communication mode that other communication mode specifically transferred to is as present communications mode.

Fig. 7 is the structural representation of the unified embodiment of communication system of the present invention.The communication system of this embodiment can be used in the present invention above-mentioned embodiment of the method for respectively carrying out D2D communication in WLAN frequency range.As shown in Figure 7, it comprises the first mobile terminal and base station.

Wherein, the first mobile terminal is used for reporting D2D communication request message when needs are communicated with the second mobile terminal carried out communication service by D2D to base station, and this D2D communication request message comprises the user ID information of the first mobile terminal and the second mobile terminal; And setting up after WiFi is connected with the second mobile terminal, the configuration information of the WiFi module determined according to base station in WLAN frequency range by the communication service of D2D communication process.

Base station is for receiving the D2D communication request message of the first mobile terminal reporting, and when determining the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal, determine the configuration information of the WiFi module in WLAN frequency range process communication service according to the WiFi module information of the first mobile terminal and the second mobile terminal; And a mobile terminal in instruction the first mobile terminal and the second mobile terminal initiates IBSS based on the configuration information of WiFi module, and another mobile terminal notifying in the first mobile terminal and the second mobile terminal adds the IBSS that a mobile terminal is initiated.

Again see Fig. 7, in another embodiment of communication system of the present invention, the second mobile terminal can also be comprised.First mobile terminal reports WiFi module information to base station when being also used in access LTE network, comprising the mode of operation of WiFi module, working frequency range and communications address information.Second mobile terminal is used for reporting WiFi module information when accessing LTE network to base station, and this WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information.

In an example of communications system embodiment of the present invention, the traffic type information of communication service in mobile terminal D2D communication request message, can also be comprised.Correspondingly, base station can also be used for after receiving D2D communication request message, whether meet the first preset standard according to the type of service of this communication service and the network load condition of current LTE network, determine whether the communication service between WLAN frequency range process first mobile terminal and the second mobile terminal.

In another example of communications system embodiment of the present invention, the configuration information of WiFi module specifically can comprise target operational mode, target operation frequency range and default WiFi beacon period information.Correspondingly, base station, specifically according to the WiFi module information of the first mobile terminal and the second mobile terminal, selects mode of operation that in the first mobile terminal and the second mobile terminal, WiFi module is all supported and working frequency range as target operational mode and target operation frequency range respectively.Base station indicate a mobile terminal based on WiFi module configuration information initiate IBSS time, specifically send IBSS to a mobile terminal in the first mobile terminal and the second mobile terminal and initiate Indication message, this IBSS initiates Indication message and comprises the SSID information to the IBSS of the mailing address of another mobile terminal and needs initiation of mobile terminal in the configuration information of WiFi module, D2D communication; When notifying that another mobile terminal adds the IBSS of a mobile terminal initiation, specifically send IBSS to another mobile terminal in the first mobile terminal and the second mobile terminal and add Indication message, this IBSS add configuration information that Indication message comprises WiFi module communicate with D2D in the SSID information of IBSS that adds of the mailing address of a mobile terminal and needs.An above-mentioned mobile terminal is specifically initiated Indication message according to IBSS and is initiated IBSS, and another mobile terminal specifically adds SSID in Indication message and the communications address information of a mobile terminal according to IBSS to be inquired about IBSS that a mobile terminal initiates and is connected.

In another embodiment of communication system of the present invention, first mobile terminal or the second mobile terminal are also used in the process with counterpart mobile terminal by the communication service of D2D communication process, whether the service data transmitting efficiency of monitoring communication service is lower than Preset Transfer efficiency threshold value, such as, the service data transmission rate of communication service lower than Preset Transfer rate threshold value and the duration exceed default D2D communication diversion time window length, or the transmission success rate of communication service lower than Preset Transfer success rate threshold value and the duration exceedes default D2D communication diversion time window length time, can think that the service data transmitting efficiency of communication service is lower than Preset Transfer efficiency threshold value, and monitoring the service data transmitting efficiency of communication service lower than Preset Transfer efficiency threshold value, send D2D communication transfer request message to base station, this D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal.Correspondingly, base station also can be used for according to the second preset standard, the traffic transfer between the first mobile terminal and the second mobile terminal is determined whether to carry out to other communication mode, other communication mode refers to the communication mode in WLAN frequency range beyond D2D communication mode, such as, can be based on the D2D communication mode of LTE network frequency spectrum or the conventional communication mode based on mobile communications network; When determining the traffic transfer between the first mobile terminal and the second mobile terminal to carry out to other communication mode, traffic transfer between first mobile terminal and the second mobile terminal is carried out to other communication mode, and send communication mode to the first mobile terminal and the second mobile terminal and shift acknowledge message, comprising the present communications mode information of process communication service.

In another embodiment of communication system of the present invention, the traffic type information also comprising the communication service needing call forwarding mode in the D2D communication transfer request message of mobile terminal reporting and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station.Correspondingly, base station specifically can according to the second preset standard, considered by the network load condition of the type of service of communication service, current LTE network, the communications link signals intensity between mobile terminal and base station, determine whether by the traffic transfer between the first mobile terminal and the second mobile terminal to other communication mode, and determining the traffic transfer between the first mobile terminal and the second mobile terminal to determining during other communication mode that other communication mode specifically transferred to is as present communications mode.

In another embodiment of communication system of the present invention, base station can also be used for sending Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length to the first mobile terminal and the second mobile terminal.Correspondingly, the first mobile terminal and the second mobile terminal can also be used for storing Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length.

Various embodiments of the present invention can be applied to various mobile communication system, such as, be applicable to LTE network, base station is now the base station in LTE network, can be called LTE base station or enode (eNB), mobile terminal is the LTE/WiFi dual-mode terminal supporting that LTE network communication communicates with wlan network.

In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, same or analogous part cross-reference between each embodiment.For equipment, system embodiment, because itself and embodiment of the method are substantially corresponding, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.

Method of the present invention, equipment, system may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method, apparatus and system of the present invention.Said sequence for the step of described method is only to be described, and the step of method of the present invention is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, can be also record program in the recording medium by the invention process, these programs comprise the machine readable instructions for realizing according to method of the present invention.Thus, the present invention also covers the recording medium stored for performing the program according to method of the present invention.

Claims

1. on wireless local area network band, carry out a method for device-to-device communication, it is characterized in that, comprising:

2. method according to claim 1, is characterized in that, base station also comprises before receiving D2D communication request message:

3. method according to claim 2, is characterized in that, also comprises the traffic type information of described communication service in described D2D communication request message;

4. method according to claim 2, is characterized in that, the configuration information of described WiFi module comprises target operational mode, target operation frequency range and default WiFi beacon period information;

Base station sends IBSS to a mobile terminal in the first mobile terminal and the second mobile terminal and initiates Indication message, and described IBSS initiates Indication message and to comprise described in the configuration information of WiFi module, D2D communication the identifier server SSID information of a mobile terminal to the IBSS of the mailing address of another mobile terminal described and needs initiation; And send IBSS to another mobile terminal in the first mobile terminal and the second mobile terminal and add Indication message, described IBSS adds the SSID information that Indication message comprises the described IBSS that the mailing address of a mobile terminal described in the configuration information of WiFi module, D2D communication and needs add;

5. method according to claim 2, is characterized in that, the first mobile terminal and the second mobile terminal report WiFi module information especially by radio resource control RRC signaling;

6. the method according to Claims 1-4 any one, is characterized in that, also comprises:

7. method according to claim 6, is characterized in that, other communication mode described comprises based on the D2D communication mode of LTE network frequency spectrum or the conventional communication mode based on mobile communications network.

8. method according to claim 6, it is characterized in that, the traffic type information also comprising the described communication service needing call forwarding mode in described D2D communication transfer request message and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station;

9. method according to claim 6, is characterized in that, the first mobile terminal or the second mobile terminal send D2D communication transfer request message especially by physical layer signaling, MAC layer control unit MAC CE or RRC signaling to base station;

10. method according to claim 6, is characterized in that, the service data transmitting efficiency of described communication service comprises lower than Preset Transfer efficiency threshold value:

11. methods according to claim 10, is characterized in that, also comprise:

12. 1 kinds of mobile terminals, is characterized in that, comprising:

13. mobile terminals according to claim 12, it is characterized in that, described mobile comm unit, also for report the WiFi module information in this mobile terminal to base station when accessing LTE network, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information;

14. mobile terminals according to claim 13, is characterized in that, also comprise:

15. mobile terminals according to claim 14, is characterized in that, the service data transmitting efficiency of described communication service comprises lower than Preset Transfer efficiency threshold value:

16. mobile terminals according to claim 15, is characterized in that, described mobile comm unit, also for receiving Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length that base station sends;

17. 1 kinds of base stations, is characterized in that, comprising:

18. base stations according to claim 17, it is characterized in that, described receiving element, the WiFi module information that reports time also for receiving the first mobile terminal and the second mobile terminal access LTE network respectively, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information.

19. base stations according to claim 18, is characterized in that, also comprise the traffic type information of described communication service in described D2D communication request message;

20. base stations according to claim 18, is characterized in that, the configuration information of described WiFi module comprises target operational mode, target operation frequency range and default WiFi beacon period;

21. according to claim 17 to the base station described in 20 any one, it is characterized in that, described receiving element, also for receiving the D2D communication transfer request message of the first mobile terminal or the transmission of the second mobile terminal, described D2D communication transfer request message by the first mobile terminal or the second mobile terminal in the process by communication service described in D2D communication process, the service data transmitting efficiency monitoring described communication service is initiated lower than during Preset Transfer efficiency threshold value, described D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal,

Described transmitting element, also shifts acknowledge message for sending communication mode to the first mobile terminal and the second mobile terminal, and described communication mode transfer acknowledge message comprises the present communications mode information processing described communication service.

22. base stations according to claim 21, it is characterized in that, the traffic type information also comprising the described communication service needing call forwarding mode in the D2D communication transfer request message that described receiving element receives and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station;

23. 1 kinds of communication systems, is characterized in that, comprising:

24. systems according to claim 23, it is characterized in that, described first mobile terminal, also for reporting WiFi module information when accessing LTE network to described base station, described WiFi module information comprises the mode of operation of WiFi module, working frequency range and communications address information;

25. systems according to claim 24, is characterized in that, also comprise the traffic type information of described communication service in described D2D communication request message;

26. systems according to claim 24, is characterized in that, the configuration information of described WiFi module comprises target operational mode, target operation frequency range and default WiFi beacon period information;

27. systems according to claim 23 to 26 any one, it is characterized in that, described first mobile terminal or the second mobile terminal, also for passing through in the process of communication service described in D2D communication process with counterpart mobile terminal, whether monitor the service data transmitting efficiency of described communication service lower than Preset Transfer efficiency threshold value, and monitoring the service data transmitting efficiency of described communication service lower than Preset Transfer efficiency threshold value, D2D communication transfer request message is sent to base station, described D2D communication transfer request message comprises the user ID information of the first mobile terminal and the second mobile terminal,

28. systems according to claim 27, is characterized in that, other communication mode described comprises based on the D2D communication mode of LTE network frequency spectrum or the conventional communication mode based on mobile communications network.

29. systems according to claim 28, it is characterized in that, the traffic type information also comprising the described communication service needing call forwarding mode in described D2D communication transfer request message and the communications link signals intensity sent between the mobile terminal of D2D communication transfer request message and base station;

30. systems according to claim 28, is characterized in that, the service data transmitting efficiency of described communication service comprises lower than Preset Transfer efficiency threshold value:

31. systems according to claim 30, is characterized in that, described base station, also for sending Preset Transfer rate threshold value, Preset Transfer success rate threshold value and default D2D communication diversion time window length to the first mobile terminal and the second mobile terminal;