CN103781017A

CN103781017A - Wireless communication method, wireless communication device, base station and terminal

Info

Publication number: CN103781017A
Application number: CN201410042548.2A
Authority: CN
Inventors: 张晨璐; 其他发明人请求不公开姓名
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2014-05-07
Also published as: WO2015113355A1

Abstract

The invention provides a wireless communication method. The method includes the steps of generating a message frame which is used for enabling a receiving party of the message frame to measure D2D communication capability of itself or enabling the receiving party to measure and judge D2D communication capability of itself; sending the message frame to at least one of two devices needing to carry out D2D communication and receiving a measuring result and / or a judgment result returned back by the receiving party. The invention further provides a wireless communication device, a corresponding base station and a corresponding terminal. By means of the technical schemes, communication equipment requesting D2D communication can be accurately measured, and accordingly the optimal communication mode can be selected and it is facilitated that energy consumption of the terminal is saved and the utilization rate of frequency is improved.

Description

Wireless communications method, radio communication device, base station and terminal

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of wireless communications method, a kind of radio communication device, a kind of base station and a kind of terminal.

Background technology

In correlation technique, a kind of communication pattern has been proposed, be direct communication (the Device to Device between terminal and terminal, be D2D communication), packet can directly be transmitted between terminal, and without the infrastructure (as base station, core net etc.) of any centre, or only by if base station or other-end etc. are as relaying, to realize farther transmission range.

But, for various application scenarioss, the how virtual condition based on terminal, thus determine whether terminal should select D2D mode to communicate, or adopt traditional non-D2D mode to communicate, become technical problem urgently to be resolved hurrily at present.

Summary of the invention

The present invention, just based on the problems referred to above, has proposed a kind of new technical scheme, can realize Measurement accuracy to the communication equipment of request D2D communication, thereby accurately select optimum communication pattern, thereby contribute to save terminal energy consumption, raising frequency efficiency.

In view of this, the present invention proposes a kind of wireless communications method, comprising: generating messages frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self, or described recipient measured and judge self D2D communication capacity; Send described message frame at least one party that need to carry out in both sides' equipment of D2D communication, and receive measurement result and/or judged result that described recipient returns.

In this technical scheme, measure by the radio communication device to as recipient (being recipient's device) D2D communication capacity, and its D2D communication capacity is judged at this point, thereby can understand the actual conditions of recipient's device, avoid the communication pattern of selecting not mate with the actual conditions of recipient's device, during such as the communicating pair hypertelorism of request D2D communication, if adopt D2D communication may cause communication connection cannot set up or communication quality poor, affect user's experience.

Wherein, by sending message frame, recipient's device returns to measurement result to network side (being the transmit leg of message frame), to be carried out the judgement of D2D communication capacity by network side after can only measuring the D2D communication capacity of self; Or, after recipient's device also can be measured voluntarily, further judge the D2D communication capacity of self according to measurement result, thereby measurement result and/or judged result informed to network side, to be determined by network side which kind of communication pattern recipient's device finally adopts.

In technique scheme, preferably, when described message frame is physical layer signaling: if described physical layer signaling is the first value, represent that described recipient need to carry out described measurement operation, or described measurement decision operation; If or described physical layer signaling is special value, represent that described recipient need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

In this technical scheme, as comparatively specific embodiment of one, physical layer signaling can only comprise the numerical value of a bit, such as in the time that this numerical value is 1, represents to need recipient's device to carry out and measures operation, or measure and decision operation; Certainly, this physical layer signaling also can represent other implications, and such as in the time that the numerical value of this physical layer signaling is 0, representing does not need to carry out above-mentioned measurement operation, or measures and decision operation.Certainly, it will be understood by those skilled in the art that " bit " here, only for for example, obviously can adopt the numerical value of other bits to represent above-mentioned implication.

As comparatively specific embodiment of another kind, can between the receiving-transmitting sides equipment of message frame, hold consultation in advance, be one or more frequency domain resource of predefine and/or time-domain resource, and for it, corresponding index is set, the physical layer signaling that comprises special value by transmission, and make this special value corresponding to predefined a certain or multiple frequency domain resource and/or the corresponding index value of time-domain resource, can measure operation by the corresponding frequency domain resource of recipient's device utilization and/or time-domain resource, or measure and decision operation.

Wherein, when physical layer signaling is during only corresponding to frequency domain resource or time-domain resource, show that recipient's device can adopt default acquiescence time-domain resource or frequency domain resource, realize above-mentioned measurement operation, or measure and decision operation.

In technique scheme, preferably, described message frame is RRC signaling or application layer signaling, and described RRC signaling or application layer signaling comprise: action type information, if described action type information is the first value, represent that described recipient need to carry out described measurement operation, or described measurement decision operation; Or resource index information, if described resource index information is special value, represent that described recipient need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation; Or frequency domain resource information and/or time-domain resource information, represent that described recipient need to utilize corresponding frequency domain resource and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

In this technical scheme, as comparatively specific embodiment of one, can, by the action type information comprising in message frame, such as the numerical value of this action type information can be 1, measure operation to indicate recipient's device to carry out, or measure and decision operation; Certainly, this action type information also can represent other implications, and such as in the time that the numerical value of action type mark is 0, representing does not need to carry out above-mentioned measurement operation, or measures and decision operation.Certainly, it will be understood by those skilled in the art that " 1 " or " 0 " here, only for for example, obviously can adopt the numerical value of other bits to represent above-mentioned implication.

As comparatively specific embodiment of another kind, can between the receiving-transmitting sides equipment of message frame, hold consultation in advance, be one or more frequency domain resource of predefine and/or time-domain resource, and for it, corresponding index is set, the resource index information that comprises special value by transmission, and make this special value corresponding to predefined a certain or multiple frequency domain resource and/or the corresponding index value of time-domain resource, can measure operation by the corresponding frequency domain resource of recipient's device utilization and/or time-domain resource, or measure and decision operation.

As another specific embodiment comparatively, can also pass through frequency domain resource information and/or time-domain resource information, directly concrete frequency domain resource and/or time-domain resource are informed to recipient's device, carry out described measurement operation for it, or described measurement decision operation.

Wherein, in the time that message frame has only been informed frequency domain resource or time-domain resource, show that recipient's device can adopt default acquiescence time-domain resource or frequency domain resource, realize above-mentioned measurement operation, or measure and decision operation.

In addition, network side can indicate recipient's device to measure in single or multiple time-domain resource and/or frequency domain resource; In the time there is multiple time-domain resource and/or frequency domain resource, after recipient's device can be measured respectively, all or wherein optimum measurement result is returned to network side.

In technique scheme, preferably, also comprise: according to the described measurement result receiving, described recipient's D2D communication capacity is estimated; Determine that according to estimated result can described both sides' equipment carry out D2D communication, and in the time determining that can carry out D2D communicates by letter, the concrete D2D communication type adopting; And to described recipient's sending mode notification message frame, comprise the communication pattern that described recipient need to adopt in described pattern communication message frame, and for frequency domain and/or the time-domain resource of communication process.

In this technical scheme, the measurement result that network side returns according to recipient's device, can judge the D2D communication capacity of recipient's device, to guarantee that it,, under optimal communication pattern, obtains optimum communication experiences.As comparatively specific embodiment of one, such as: in the time that it does not possess D2D communication capacity, should make recipient's device adopt non-D2D communication pattern (as wireless mobile communications patterns such as traditional 2G, 3G, 4G); In the time that it possesses weak D2D communication capacity, should make recipient's device adopt relaying D2D communication pattern; In the time that it possesses stronger D2D communication capacity, should make recipient's device adopt direct D2D communication pattern.

In technique scheme, preferably, described measurement result comprises: the actual range between described both sides' equipment and/or path fading value, and/or channel conditions between described both sides' equipment; And the estimation of D2D communication capacity to described recipient specifically comprises: when described actual range and/or described path fading value are less than or equal to the first corresponding predetermined threshold value, and/or described channel conditions is while being better than the first preset channel condition, judges that described both sides' equipment can carry out direct D2D communication; When described actual range and/or described path fading value are greater than described the first predetermined threshold value and are less than or equal to the second predetermined threshold value, and/or described channel conditions is when being inferior to described the first preset channel condition and being better than the second preset channel condition, judges that described both sides' equipment can carry out relaying D2D communication; When described actual range and/or described path fading value are greater than described the second predetermined threshold value, and/or described channel conditions is while being inferior to described the second preset channel condition, judges that described both sides' equipment can not carry out D2D communication.

Certainly, those skilled in the art should be understood that: in the time that recipient's device is carried out to the judgement of D2D communication capacity, obviously be not limited to above-mentioned parameter, can pass through other more eurypalynous parameters, with the debit's device that helps to achieve a butt joint more accurately or D2D communication capacity judgement more rapidly.

In above-mentioned arbitrary technical scheme, preferably, in the time that definite described both sides' equipment can carry out D2D communication, also comprise: generate shunting request, in described shunting request, comprise either one or both the mark in described both sides' equipment, represent that described both sides' equipment need to carry out to the shunting of D2D communication; Send described shunting request to core net, and in the time receiving the confirmation message frame returning, at least one party in described both sides' equipment sends the instruction that adopts D2D communication pattern.

In this technical scheme, by core net being initiated to shunting request, make core net recognize corresponding D2D communication conditions; Especially in the time that recipient's device needs will have business and switch to D2D communication pattern from conventional communication mode, core net can discharge corresponding resource in time, to improve resource utilization, alleviates system burden.

In technique scheme, preferably, described shunting request also comprises: granularity information, represent that described both sides' equipment need to be based on equipment, APN, radio bearer and/or IP stream, and realization is to the shunting of D2D communication.

In addition, in shunting request, can also comprise type of message mark, as " LTEtoD2D " or " LTEtoD2Drelay ", with the type that shows this shunting request be: switch to D2D communication pattern from LTE communication pattern; Certainly, " LTE " is herein only for giving an example, should determine according to the actual residing communication pattern of recipient's device, such as when recipient's device is during originally in " CDMA " communication pattern, type of message identifies and should be " CDMAtoD2D " or " CDMAtoD2Drelay " etc.

In above-mentioned arbitrary technical scheme, preferably, before generating described message frame, also comprise: described both sides' equipment is carried out to the pre-judgement in position and/or ability is adjudicated in advance, if pre-court verdict is meet correspondence pre-conditioned, generates described message frame, otherwise do not generate; Wherein, the pre-judgement in described position comprises: obtain the adjacent end database corresponding to described recipient that described recipient safeguards or that network side is safeguarded, and/or obtain described both sides' equipment and distinguish residing area information, to determine whether that either party in described both sides' equipment is in adjacent end database corresponding to the opposing party, and/or described both sides' equipment is in same area; The pre-judgement of described ability comprises: obtain the second state information of network side corresponding to the first state information of described recipient and/or described recipient, to determine whether described the first state information and/or described the second state information meet corresponding status condition.

In this technical scheme, due in the D2D communication capacity deterministic process based on measuring, obtaining with deterministic process of its measurement data needs the long period, makes to cause user's waits for too long, thereby affects user's experience.Therefore, can adjudicate in advance by the pre-judgement in relatively more simple position and/or ability, realize more roughly but efficiently judgement in advance, thereby can effectively reduce user's stand-by period, again because adjudicate in advance position and/or the pre-judgement of ability itself is consuming time very short, even if thereby still need to carry out and measure operation or measure and decision operation, also can not make user's waits for too long.

Adjudicate in advance for position, adjacent end database can be safeguarded separately by recipient and/or network side, wherein comprise this recipient terminal around, and be that recipient and/or network side obtain in advance (can be by periodically or the mode of Event triggered, adjacent end database is safeguarded and is upgraded) terminal data, owing to not needing real-time measurement, thereby contribute to shorten the pre-time of adjudicating of position.

Or, also can report by communicating pair, or after network side measures, determine the coarse position information of communicating pair, such as whether both are in same area, to determine the D2D communication capacity of communicating pair.Wherein, coarse position information can be connected base station IDs, residing community ID and/or residing tracing area ID etc., to determine that whether both are in identical community, sector, tracing area etc.

Adjudicate in advance for ability, can be according to the second state information of the first state information of recipient and/or its map network side, to realize comparatively roughly but fast communications status judgement, thereby in the time cannot realizing D2D communication between communicating pair, can effectively reduce user's stand-by period, again because the pre-judgement of ability itself is consuming time very short, even if thereby still need to carry out and measure operation or measure and decision operation, also can not make user's waits for too long.

In technique scheme, preferably, described the first state information comprise following at least one or a combination set of: described recipient's real-time electric weight; Described recipient's real-time power consumption; The opening of described recipient's D2D communication function; And/or described the second state information comprise following at least one or a combination set of: the resource utilization of wireless link; The resource load state of wireless link; The resource utilization of return link; The resource load state of return link; The loading condition of core network data face node (as S-GW, Serving Gateway) and signaling plane node (as MME, Mobility Management Entity).

The invention allows for a kind of radio communication device, comprise: message frame generation unit, for generating messages frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self, or described recipient measured and judge self D2D communication capacity; Data interaction unit, sends described message frame at least one party to both sides' equipment that need to carry out D2D communication, and receives measurement result and/or judged result that described recipient returns.

As another specific embodiment comparatively, can also pass through frequency domain resource information and/or time-domain resource information, directly concrete frequency domain resource and/or time-domain resource are informed to recipient's device, carry out described measurement operation for it, or described measurement decision operation.Wherein, in the time that message frame has only been informed frequency domain resource or time-domain resource, show that recipient's device can adopt default acquiescence time-domain resource or frequency domain resource, realize above-mentioned measurement operation, or measure and decision operation.

In technique scheme, preferably, also comprise: type determining unit, the described measurement result receiving for basis, D2D communication capacity to described recipient is estimated, and determine that according to estimated result can described both sides' equipment carry out D2D communication, and in the time determining that can carry out D2D communicates by letter, the concrete D2D communication type adopting; Described message frame generation unit also, for generate pattern notification message frame, comprises the communication pattern that described recipient need to adopt in described pattern communication message frame, and for frequency domain and/or the time-domain resource of communication process; And described data interaction unit also for: send described pattern notification message frame to described recipient.

In technique scheme, preferably, described measurement result comprises: the actual range between described both sides' equipment and/or path fading value, and/or channel conditions between described both sides' equipment, described type determining unit is used for: when described actual range and/or described path fading value are less than or equal to the first corresponding predetermined threshold value, and/or described channel conditions is while being better than the first preset channel condition, judges that described both sides' equipment can carry out direct D2D communication; When described actual range and/or described path fading value are greater than described the first predetermined threshold value and are less than or equal to the second predetermined threshold value, and/or described channel conditions is when being inferior to described the first preset channel condition and being better than the second preset channel condition, judges that described both sides' equipment can carry out relaying D2D communication; When described actual range and/or described path fading value are greater than described the second predetermined threshold value, and/or described channel conditions is while being inferior to described the second preset channel condition, judges that described both sides' equipment can not carry out D2D communication.

In above-mentioned arbitrary technical scheme, preferably, also comprise: request generation unit, for generate shunting request in the situation that definite described both sides' equipment can carry out D2D communication, in described shunting request, comprise either one or both the mark in described both sides' equipment, represent that described both sides' equipment need to carry out to the shunting of D2D communication; Described data interaction unit also for: send described shunting request to core net, and in the time receiving the confirmation message frame returning, at least one party in described both sides' equipment sends the instruction that adopts D2D communication pattern.

In above-mentioned arbitrary technical scheme, preferably, also comprise: pre-decision unit, for before described message frame generation unit generates described message frame, described both sides' equipment is carried out to the pre-judgement in position and/or ability is adjudicated in advance, if pre-court verdict is meet correspondence pre-conditioned, generates described message frame by described message frame generation unit, otherwise do not generate; Wherein, the pre-judgement in described position comprises: obtain the adjacent end database corresponding to described recipient that described recipient safeguards or that network side is safeguarded, and/or obtain described both sides' equipment and distinguish residing area information, to determine whether that either party in described both sides' equipment is in adjacent end database corresponding to the opposing party, and/or described both sides' equipment is in same area; The pre-judgement of described ability comprises: obtain the second state information of network side corresponding to the first state information of described recipient and/or described recipient, to determine whether described the first state information and/or described the second state information meet corresponding status condition.

In technique scheme, preferably, described the first state information comprise following at least one or a combination set of: described recipient's real-time electric weight; Described recipient's real-time power consumption; The opening of described recipient's D2D communication function; And/or described the second state information comprise following at least one or a combination set of: the resource utilization of wireless link; The resource load state of wireless link; The resource utilization of return link; The resource load state of return link; The loading condition of core network data face node (as SGW) and signaling plane node (as MME).

The invention allows for a kind of base station, comprising: the radio communication device as described in any one in technique scheme.

The invention allows for a kind of wireless communications method, comprising: initiate the handover request to D2D communication pattern; Receipt message frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self, or described recipient measured and judge self D2D communication capacity; Carry out described measurement operation or described measurement decision operation, and to transmit leg return measurement result and/or the judged result of described message frame.

In this technical scheme, D2D communication capacity by the radio communication device to as recipient (being recipient's device) is measured, and its D2D communication capacity is judged at this point, thereby can understand the actual conditions of recipient's device, avoid the communication pattern of selecting not mate with the actual conditions of recipient's device, during such as the communicating pair hypertelorism of request D2D communication, if adopt D2D communication may cause communication connection cannot set up or communication quality poor, affect user's experience.

In technique scheme, preferably, also comprise: receive the pattern communication message frame from the transmit leg of described message frame, in described pattern communication message frame, comprise the communication pattern that described recipient need to adopt, and for frequency domain and/or the time-domain resource of communication process; And according to described communication pattern and described frequency domain and/or time-domain resource, realize corresponding communication process.

In technique scheme, preferably, also comprise: receive the pre-decision instruction from the transmit leg of described message frame; According to described pre-decision instruction, return to the adjacent end database that described recipient safeguards, and/or described recipient's state information.

In this technical scheme, due in the D2D communication capacity deterministic process based on measuring, obtaining with deterministic process of its measurement data needs the long period, makes to cause user's waits for too long, thereby affects user's experience.Therefore, can be by relatively more simple pre-judgement, realize more roughly but efficiently judgement in advance, thereby can effectively reduce user's stand-by period, again because pre-judgement itself is consuming time very short, even if thereby still need to carry out and measure operation or measure and decision operation, also can not make user's waits for too long.Particularly, pre-judging process can comprise that adjudicate in advance position and ability is adjudicated in advance:

Adjudicate in advance for position, can realize based on adjacent end database.Particularly, adjacent end database can be safeguarded separately by recipient and/or network side, wherein comprise this recipient terminal around, and be that recipient and/or network side obtain in advance (can be by periodically or the mode of Event triggered, adjacent end database is safeguarded and is upgraded) terminal data, owing to not needing real-time measurement, thereby contribute to shorten the pre-time of adjudicating of position.

Adjudicate in advance for ability, can be according to recipient's state information, to realize comparatively roughly but fast communications status judgement, thereby in the time cannot realizing D2D communication between communicating pair, can effectively reduce user's stand-by period, again because the pre-judgement of ability itself is consuming time very short, even if thereby still need to carry out and measure operation or measure and decision operation, also can not make user's waits for too long.

In technique scheme, preferably, described state information comprise following at least one or a combination set of: described recipient's real-time electric weight; Described recipient's real-time power consumption; The opening of described recipient's D2D communication function.

The invention allows for a kind of radio communication device, comprising: request initiating cell, for initiating to the handover request of D2D communication pattern; Data interaction unit, for receipt message frame, described message frame is for making radio communication device described in it measure the D2D communication capacity of self, or makes described radio communication device measure and judge the D2D communication capacity of self; Operation execution unit, for carrying out described measurement operation or described measurement decision operation, with transmit leg return measurement result and/or the judged result to described message frame by described data interaction unit.

In technique scheme, preferably, when described message frame is physical layer signaling: if described physical layer signaling is the first value, represent that described radio communication device need to carry out described measurement operation, or described measurement decision operation; If or described physical layer signaling is special value, represent that described radio communication device need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

In technique scheme, preferably, described message frame is RRC signaling or application layer signaling, and described RRC signaling or application layer signaling comprise: action type information, if described action type information is the first value, represent that described radio communication device need to carry out described measurement operation, or described measurement decision operation; Or resource index information, if described resource index information is special value, represent that described radio communication device need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation; Or frequency domain resource information and/or time-domain resource information, represent that described radio communication device need to utilize corresponding frequency domain resource and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

In technique scheme, preferably, described data interaction unit also for: receive the pattern communication message frame from the transmit leg of described message frame, in described pattern communication message frame, comprise the communication pattern that described radio communication device need to adopt, and for frequency domain and/or the time-domain resource of communication process; And described radio communication device also comprises: communication realizes unit, for according to described communication pattern and described frequency domain and/or time-domain resource, realizes corresponding communication process.

In technique scheme, preferably, described data interaction unit also for: receive the pre-decision instruction from the transmit leg of described message frame; Wherein, described data interaction unit, according to described pre-decision instruction, returns to the adjacent end database that described radio communication device is safeguarded, and/or the state information of described radio communication device.

In technique scheme, preferably, described state information comprise following at least one or a combination set of: the real-time electric weight of described radio communication device; The real-time power consumption of described radio communication device; The opening of the D2D communication function of described radio communication device.

The invention allows for a kind of terminal, comprising: the radio communication device as described in any one in technique scheme.

By above technical scheme, can realize Measurement accuracy to the communication equipment of request D2D communication, thereby accurately select optimum communication pattern, thereby contribute to save terminal energy consumption, raising frequency efficiency.

Accompanying drawing explanation

Figure 1A shows the Signalling exchange schematic diagram of model selection according to an embodiment of the invention;

Figure 1B shows the Signalling exchange schematic diagram of model selection according to another embodiment of the invention;

Fig. 2 A shows the schematic flow diagram of the wireless communications method of side Network Based according to an embodiment of the invention;

Fig. 2 B shows the schematic flow diagram of the wireless communications method based on end side according to an embodiment of the invention;

Fig. 3 A shows the schematic flow diagram of the wireless communications method of side Network Based according to another embodiment of the invention;

Fig. 3 B shows the schematic flow diagram of the wireless communications method based on end side according to another embodiment of the invention;

Fig. 4 shows the schematic flow diagram that the communication pattern of terminal is selected according to an embodiment of the invention;

Fig. 5 A to Fig. 5 C shows the schematic diagram of switch communication mode according to an embodiment of the invention;

Fig. 6 A to Fig. 6 B shows the schematic diagram of switch communication mode according to another embodiment of the invention;

Fig. 7 A to Fig. 7 B shows the schematic diagram of switch communication mode according to still another embodiment of the invention;

Fig. 8 shows the schematic block diagram of the radio communication device as network side according to an embodiment of the invention;

Fig. 9 shows the schematic block diagram of base station according to an embodiment of the invention;

Figure 10 shows the schematic block diagram of the radio communication device as end side according to an embodiment of the invention;

Figure 11 shows the schematic block diagram of terminal according to an embodiment of the invention.

Embodiment

In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.

A lot of details are set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.

Figure 1A shows the Signalling exchange schematic diagram of model selection according to an embodiment of the invention; Figure 1B shows the Signalling exchange schematic diagram of model selection according to another embodiment of the invention.

As shown in FIG. 1A and 1B, suppose that UE1 and UE2 need to set up the communicating pair that D2D communicates by letter, and UE1 is that initiating equipment, the UE2 of D2D communication request is the target device of D2D communication request; ENB can be expressed as UE1 and/or base station corresponding to UE2.Based on above-mentioned setting, the signalling interactive process of model selection according to an embodiment of the invention comprises:

One, judgement in advance

Can step 102, set up to UE1 and UE2 the pre-judgement that D2D communicates by letter, to judging rapidly whether two equipment can adopt D2D communication on ability and/or state.Certainly, it is pointed out that step 102 is not necessary step.

1, position judges in advance

Step 102A, the rough judgement of the positional information to UE1 and UE2, according to the distance situation of two equipment rooms, determines whether to be applicable to set up D2D communication.

Although comparatively particularly step 102A is illustrated as in Figure 1A: by UE1 to corresponding eNB launch position request (comprising the positional information to UE1 self and UE2), and eNB returns to corresponding positional information, but one skilled in the art will appreciate that and obviously also can realize by other means the pre-deterministic process in above-mentioned position:

Particularly, obtain the adjacent end database corresponding to described UE1 that UE1 safeguards or that network side is safeguarded, and/or obtain described UE1 and described target terminal residing area information respectively; Wherein, when find described target terminal in described adjacent end database, and/or described UE1 and described target terminal are in same area time, carry out described accurate positioning step, otherwise judge that described target terminal is not in D2D communication range corresponding to described UE1.

In this technical scheme, UE1 and/or network side can be safeguarded adjacent end database separately, it is the terminal that UE1 around exists, can be UE1 self and/or network side obtained (UE1 and/or network side can be by periodically or the mode of Event triggered, the terminal that UE1 is around existed is measured, and be updated in the adjacent end database of safeguarding separately), thereby owing to not needing real-time measurement, make it possible to determine at short notice that target terminal is whether in D2D communication range corresponding to UE1.

Or, can report by UE1 and target terminal, or after network side measures, determine the coarse position information of UE1 and target terminal, such as whether both are in same area, to determine that target terminal is whether in D2D communication range corresponding to UE1.Wherein, coarse position information can be connected base station IDs, residing community ID and/or residing tracing area ID etc., to determine that whether both are in identical community, sector, tracing area etc.

2, state judges in advance

Step 102B, eNB judges the communications status of UE1 and/or UE2.

Particularly, obtain the second state information of the network side that the first state information of UE1 and/or described UE1 are corresponding; Wherein, in the time that described the first state information and/or described the second state information meet corresponding status condition, carry out described accurate decision steps, otherwise judge that the communications status of UE1 does not meet described pre-conditioned.

Preferably, described the first state information comprise following at least one or a combination set of:

The real-time electric weight of UE1;

The real-time power consumption of UE1;

The support status of UE1 to D2D communication function;

In the situation that supporting described D2D communication function, the opening of the D2D communication function of UE1;

And/or described the second state information comprise following at least one or a combination set of:

The resource utilization of wireless link;

The resource load state of wireless link;

The resource utilization of return link;

The resource load state of return link;

The loading condition of core network data face node (as S-GW, Serving Gateway) and/or signaling plane node (as MME, Mobility Management Entity).

Two, judge again

(1) reciprocal process

Embodiment mono-

As shown in Figure 1A, in step 104, eNB sends D2D communication capacity judgement notice to UE1 and/or UE2, with by UE1 and/or UE2 to self measuring and decision operation, determine whether it can realize D2D communication, and specifically adopt which kind of communication pattern, and inform the judged result that eNB is final.

Correspondingly, Fig. 2 A shows the schematic flow diagram of the wireless communications method of side Network Based according to an embodiment of the invention; Fig. 2 B shows the schematic flow diagram of the wireless communications method based on end side according to an embodiment of the invention.

1, network side (being eNB)

As shown in Figure 2 A, the wireless communications method of side Network Based according to an embodiment of the invention, comprising:

Step 202, generating messages frame, described message frame is used for the D2D communication capacity that its recipient is measured and judge self;

Step 204, sends described message frame at least one party that need to carry out in both sides' equipment of D2D communication, and receives measurement result and/or judged result that described recipient returns.

2, end side (being UE1 and/or UE2)

As shown in Figure 2 B, the wireless communications method based on end side according to an embodiment of the invention, comprising:

Step 202 ', initiating after the handover request of D2D communication pattern, receipt message frame, described message frame is used for the D2D communication capacity that its recipient is measured and judge self;

Step 204 ', carry out described measurement decision operation, and to transmit leg return measurement result and/or the judged result of described message frame.

In this technical scheme, measure by the D2D communication capacity to UE1 and/or UE2, and its D2D communication capacity is judged at this point, thereby can understand recipient's device (in this embodiment, be UE1 and/or UE2) actual conditions, avoid the communication pattern of selecting not mate with the actual conditions of recipient's device, during such as the communicating pair hypertelorism of request D2D communication, if adopt D2D communication may cause communication connection cannot set up or communication quality poor, affect user's experience.

Embodiment bis-

As shown in Figure 1B, in step 104 ' in, eNB sends D2D communication capacity judgement notice to UE1 and/or UE2, with by UE1 and/or UE2 to self measuring operation, and determine by eNB accordingly whether it can realize D2D communication, and specifically adopt which kind of communication pattern.

Correspondingly, Fig. 3 A shows the schematic flow diagram of the wireless communications method of side Network Based according to an embodiment of the invention; Fig. 3 B shows the schematic flow diagram of the wireless communications method based on end side according to an embodiment of the invention.

1, network side (being eNB)

As shown in Figure 3A, the wireless communications method of side Network Based according to an embodiment of the invention, comprising:

Step 302, generating messages frame (being D2D communication capacity judgement notice), described message frame is for making the recipient of described message frame measure the D2D communication capacity of self;

Step 304, sends described message frame at least one party that need to carry out in both sides' equipment (being UE1 and UE2) of D2D communication, and receives the measurement result that described recipient returns.

2, end side (being UE1 and/or UE2)

As shown in Figure 3 B, the wireless communications method based on end side according to an embodiment of the invention, comprising:

Step 302 ', initiating after the handover request of D2D communication pattern, receipt message frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self;

Step 304 ', carry out described measurement operation or described measurement decision operation, and to the transmit leg return measurement result of described message frame.

In this technical scheme, D2D communication capacity by the UE1 to as recipient and/or UE2 is measured, and its D2D communication capacity is judged at this point, thereby can understand recipient's device (in this embodiment, be UE1 and/or UE2) actual conditions, avoid the communication pattern of selecting not mate with the actual conditions of recipient's device, during such as the communicating pair hypertelorism of request D2D communication, if adopt D2D communication may cause communication connection cannot set up or communication quality poor, affect user's experience.

Based on the transmission of above-mentioned D2D communication capacity judgement notice, eNB further carries out: according to the described measurement result receiving, described recipient's D2D communication capacity is estimated; Determine that according to estimated result can described both sides' equipment carry out D2D communication, and in the time determining that can carry out D2D communicates by letter, the concrete D2D communication type adopting; And to described recipient's sending mode notification message frame, comprise the communication pattern that described recipient need to adopt in described pattern communication message frame, and for frequency domain and/or the time-domain resource of communication process.

(2) signaling type

1, physical layer signaling

When described message frame is physical layer signaling: if described physical layer signaling is the first value, represent that described recipient need to carry out described measurement operation, or described measurement decision operation; If or described physical layer signaling is special value, represent that described recipient need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

2, RRC signaling or application layer signaling

Described message frame is RRC signaling or application layer signaling, and described RRC signaling or application layer signaling comprise: action type information, if described action type information is the first value, represent that described recipient need to carry out described measurement operation, or described measurement decision operation; Or resource index information, if described resource index information is special value, represent that described recipient need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation; Or frequency domain resource information and/or time-domain resource information, represent that described recipient need to utilize corresponding frequency domain resource and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

Three, model selection

As shown in Figure 1A, according to one embodiment of present invention, in step 104, can be selected the communication pattern adopting voluntarily by UE1 and/or UE2; And, as shown in Figure 1B, according to another embodiment of the invention, in step 106 ' in the communication pattern that can be adopted UE1 and/or UE2 by eNB select.

1, mode decision

Particularly, measurement result can comprise: the actual range between described both sides' equipment and/or path fading value, and/or channel conditions between described both sides' equipment, and the estimation of the D2D communication capacity to described recipient specifically can comprise:

When described actual range and/or described path fading value are less than or equal to the first corresponding predetermined threshold value, and/or described channel conditions is while being better than the first preset channel condition, judges that described both sides' equipment can carry out direct D2D communication;

When described actual range and/or described path fading value are greater than described the first predetermined threshold value and are less than or equal to the second predetermined threshold value, and/or described channel conditions is when being inferior to described the first preset channel condition and being better than the second preset channel condition, judges that described both sides' equipment can carry out relaying D2D communication;

When described actual range and/or described path fading value are greater than described the second predetermined threshold value, and/or described channel conditions is while being inferior to described the second preset channel condition, judges that described both sides' equipment can not carry out D2D communication.

2, shunting request

When definite UE1 and UE2 can carry out D2D while communicating by letter, eNB also carries out the step 106 shown in step 108 as shown in Figure 1A or Figure 1B ' a part, specifically comprise: generate shunting request, in described shunting request, comprise either one or both the mark in described both sides' equipment, represent that described both sides' equipment need to carry out to the shunting of D2D communication; Send described shunting request to core net, and in the time receiving the confirmation message frame returning, at least one party in described both sides' equipment sends the instruction that adopts D2D communication pattern.

Four, switching command

In embodiment as shown in Figure 1A, because UE1 and UE2 have determined communication pattern voluntarily, and notify to have informed eNB by model selection, eNB only needs to notify UE1 and UE2 execution pattern to switch by switching command, can enter step 108, realize concrete communication pattern handover operation.

In embodiment as shown in Figure 1B, by eNB, the communication pattern of UE1 and UE2 employing is informed, eNB can be by informing to UE1 and UE2 the communication pattern that it specifically should adopt as model selection notice.Meanwhile, eNB can directly notify by this model selection, makes implicitly to inform that UE1 and UE2 carry out handover operation, without sending switching command; Or eNB obviously also can directly pass through switching command, notice UE1 and UE2 execution pattern are switched, and can enter step 108, realize concrete communication pattern handover operation.

Comprehensive above-mentioned each process step, Fig. 4 shows the schematic flow diagram that the communication pattern of terminal is selected according to an embodiment of the invention.

As shown in Figure 4, the process that the communication pattern of terminal is selected according to an embodiment of the invention comprises three phases, is described in detail respectively below with regard to each stage.

First stage: judgement in advance

Step 402A, position judges in advance.

Particularly, comprise two kinds of implementations:

1, judge based on existing positional information

1) the current terminal of supposition initiating communication request is UE1, and the target terminal that UE1 need to communicate is UE2.

UE1 safeguards " adjacent UE database " (specifically can be safeguarded by the upper layer application in UE1), records UE1 end message around in this database.The mode that UE1 can trigger according to predetermined period or event, upgrades " adjacent UE database ", such as predetermined period can be 30 minutes, and after triggering sexual behavior part and can being each sign off.

Particularly, UE1 can, by sending towards periphery the specific signaling of surveying, with the basis reply situation of terminal around, determine the terminal existing around.

Therefore, in the time that UE1 need to initiate new communication, can be directly by " the adjacent UE database " of inquiry self maintained, and be arranged in the situation of " adjacent UE database " as UE2, determine that UE2 is in D2D communication range corresponding to UE1, both can carry out D2D communication.

Certainly, " the adjacent UE database " safeguarded for UE1, also can be uploaded to network side, whether UE2 is judged in D2D communication range corresponding to UE1, and inform UE1 by network side.

2) can safeguard " the adjacent UE database " for UE1 by network side.Particularly, after being measured by the specific detection of UE1 transmission signaling, measurement result is informed to network side, to realize the maintenance to UE1 end message around; Or, such as can also directly being obtained all terminal positions that connect such as UE1 by network side, to determine the terminal around in UE1, especially, can obtain the terminal in same community or same sector with UE1, using the terminal around UE1.

" the adjacent UE database " that side Network Based is safeguarded, network side can directly judge the position relationship between UE2 and UE1; Or network side can be informed UE1 by " adjacent UE database ", to be judged voluntarily the position relationship between itself and UE2 by UE1.

In above-mentioned various judgment modes, owing to all having adopted " the adjacent UE database " that obtain in advance and safeguard to carry out position judgment, and obtain without carrying out real-time positional information, thereby can within a short period of time, obtain the rough position situation between UE1 and UE2, to realize position acquisition and the judgement of D2D ability fast.

2, the judgement based on real-time position information

Because the content in " adjacent UE database " has certain time ductility, make may affect to a certain extent the judgment accuracy of the position relationship to UE1 and UE2.Therefore, can carry out Real-time Obtaining to the positional information of UE1 and UE2.

Certainly, need to complete at short notice for the pre-judgement in position of UE1 and UE2, thereby can only obtain both coarse position information.Such as can base station IDs to UE1 and the residing community ID of UE2, tracing area ID, connection etc. being obtained by network side, thereby at both in same community or tracing area, or be connected in the situation of same base station, think that UE2 is in D2D communication range corresponding to UE1.

Step 402B, communications status judges in advance.

Particularly, can, from following arbitrary or whole two aspects, communications status be judged.

1, SOT state of termination

The state of terminal can comprise the state of UE1 and/or the state of UE2, particularly, SOT state of termination can comprise following at least one or a combination set of:

The real-time electric weight of described current terminal, such as in the time that the real-time electric weight of UE1 and/or UE2 is less than predetermined threshold value, priority application D2D communication pattern;

The real-time power consumption of described current terminal, such as in the time that the real-time power consumption of UE1 and/or UE2 is less than predetermined threshold value, priority application D2D communication pattern;

The support status of described current terminal to D2D communication function, such as in the time that UE1 and UE2 support D2D communication function, priority application D2D communication pattern;

Supporting described D2D communication function in the situation that, the opening of the D2D communication function of described current terminal, such as in the time that UE1 and UE2 have all opened D2D communication function, priority application D2D communication pattern.

2, network state

Network state, the state of the network side connecting with UE1, can comprise following at least one or a combination set of:

The resource utilization of wireless link and/or resource load state, such as in the time that the resource utilization of wireless link and/or resource load state are greater than threshold value L1, the direct D2D communication pattern of priority application, and in the time being less than threshold value L2, priority application relaying D2D communication pattern or conventional communication mode (L2≤L1);

The resource utilization of return link and/or resource load state, such as in the time that the resource utilization of return link and/or resource load state are greater than threshold value K1, priority application D2D communication pattern, and in the time being less than threshold value K2, priority application conventional communication mode (K2≤K1);

It should be noted that, step 402A and step 402B belong to two aspects of pre-judgement, there is not necessary coupled relation or sequencing between the two, that is: can first perform step 402A, rear execution step 402B, also can first perform step 402B, rear execution step 402A, and in the step of carrying out in the ban, judge when UE1 and UE2 are unsuitable for applying D2D mode and communicate, a step after can not carrying out, and directly judge that the non-D2D mode of use communicates.

Step 404, determines and judges whether in advance to pass through, if pass through, enters the deterministic process again of second stage, otherwise directly enters step 410A.

Wherein, if in the arbitrary step in step 402A or step 402B, judge that UE1 and UE2 are unsuitable for using D2D mode to communicate, can be judged to be not pass through, and be only applicable to use D2D mode to communicate when two steps are all definite, be just judged to be to pass through, to shorten user's stand-by period; Or, also can, in the time that arbitrary step is judged to be to be suitable for using D2D mode to communicate, just be judged to be to pass through, to avoid erroneous judgement.

Second stage: judge again

Step 406A, position judges again.

Particularly, can accurately locate by the locating module in the terminal such as UE1, UE2, such as obtaining positional information by GPS, A-GPS, Big Dipper navigation system etc., for realizing the accurate judgement of the position relationship to UE1 and UE2.

In a kind of concrete execution mode, can be obtained after the positional information of UE2 by UE1, determine voluntarily both position relationships in distance; Under the concrete execution mode of another kind, can respectively the positional information of self be reported to after network side by UE1 and UE2, by network side, both positional informations are compared, to determine both position relationships in distance.

Further, based on above-mentioned precise position information, UE1 or network side can also calculate the path fading value between UE1 and UE2, to determine whether both are applicable to communicate by D2D mode.

Step 406B, communications status judges again.

Can send specific pilot signal and/or training sequence to UE2 by UE1, thereby the quality of reception and/or receiving intensity by UE2 to signal are measured, and inform UE1 and/or network side, by UE1 and/or network side, it is judged, and whether signal(l)ing condition between definite UE1 and UE2 is applicable to D2D communication.

Or, also can send above-mentioned specific pilot signal and/or training sequence to UE1 by UE2, thereby the quality of reception to signal and/or receiving intensity are measured by UE1, and judged signal(l)ing condition voluntarily, or report to network side, and judged by network side.

Step 408, determines and judges whether to pass through again, if pass through, enters the model selection process of phase III, otherwise directly enters step 410A.

Wherein, if in the arbitrary step in step 406A or step 406B, judge that UE1 and UE2 are unsuitable for using D2D mode to communicate, can be judged to be not pass through, and be only applicable to use D2D mode to communicate when two steps are all definite, be just judged to be to pass through, to shorten user's stand-by period; Or, also can, in the time that arbitrary step is judged to be to be suitable for using D2D mode to communicate, just be judged to be to pass through, to avoid erroneous judgement.

Phase III: model selection

1, conventional communication mode

Step 410A, if be not suitable for D2D communication between UE1 and UE2, can apply traditional communication pattern by between,, by base station, S-GW/MME etc., realizes data and/or Signalling exchange between UE1 and UE2.

2, direct D2D communication pattern

Step 410B, the judged result of position-based and/or communications status, such as the close together between UE1 and UE2, and/or channel conditions between UE1 and UE2 is better etc., can be by directly carrying out D2D communication between UE1 and UE2, and realize signal without relaying and forward.

Comparatively particularly, such as for position relationship, suppose that distance and/or the path fading value between UE1 and UE2 is less than or equal to the first default distance threshold, determine and can use direct D2D communication pattern; And for communications status, suppose the first channel conditions that the channel conditions between UE1 and UE2 is better than presetting, determine and can use direct D2D communication pattern.

Wherein, all meet above-mentioned condition aspect either side that can be in " position relationship " and " communications status " or two, determine that UE1 and UE2 use direct D2D communication pattern.

3, relaying D2D communication pattern

Step 410C, the judged result of position-based and/or communications status, distant such as between UE1 and UE2, although or close together but channel conditions is not ideal, can be by base station, mobile base station or other-end as relaying, realize the D2D based on relaying between UE1 and UE2 communication, with by relay extension communication distance, optimize channel conditions.

Comparatively particularly, such as for position relationship, suppose that distance and/or path fading value between UE1 and UE2 are greater than the first default distance threshold and are less than or equal to default second distance threshold value (the first distance threshold is less than second distance threshold value), determine and can use relaying D2D communication pattern; And for communications status, suppose that the channel conditions between UE1 and UE2 is worse than the first default channel conditions but is better than default second channel situation (the first channel conditions is better than second channel situation), determine and can use relaying D2D communication pattern.

Wherein, all meet above-mentioned condition aspect either side that can be in " position relationship " and " communications status " or two, determine that UE1 and UE2 use relaying D2D communication pattern.

The present invention proposes a kind of technical scheme that the communication pattern of terminal is selected, wherein by after positional information, communications status etc. between current terminal and target terminal are judged, determine the concrete communication pattern using.It should be noted that, technique scheme can either be applicable to the initial process of establishing of communication, also can be applicable to the pattern handoff procedure of communication after having set up, when flow process as shown in Figures 2 to 4 can be initiated by new business, trigger, thereby select suitable data path for new business; Also can be by triggering in existing business generating process, ensure that the seamless harmless pattern of existing business is switched.

For the pattern handoff procedure of setting up after communication, need to carry out lasting condition monitoring to communicating pair, below by multiple embodiment, to being described in detail and illustrating based on multiple concrete application scenarioss of the present invention.

Embodiment mono-

Fig. 5 A to Fig. 5 C shows the schematic diagram of switch communication mode according to an embodiment of the invention.

As shown in Figure 5A, based on the position judgment to UE1 and UE2, suppose that distance is between the two less than threshold value A.

And/or, state judgement based on to UE1 and UE2, supposing that UE1 receives from measurement pilot frequency/search for pilots receiving intensity or the signal quality of UE2 is greater than thresholding B, and base station wireless resource load and/or utilization rate be greater than thresholding L, and/or eNB is not shown to S-GW() load and/or resource utilization be greater than thresholding K.

Therefore,, based on above-mentioned judgement, can between UE1 and UE2, adopt direct D2D communication pattern.

As shown in Figure 5 B, pass through test constantly, suppose that the distance value detecting between UE1 and UE2 is greater than threshold value C(C >=A), be less than threshold value D(D >=C), and both are in identical community, the communication pattern of UE1 and UE2 can be switched to relaying D2D communication pattern, i.e. the D2D communication pattern take eNB as relaying.

As shown in Figure 5 C, by test constantly, suppose that the distance value detecting between UE1 and UE2 is greater than threshold value E(E >=D), and both are in different communities; And/or the load value that return link detected is lower than threshold value K, the communication pattern of UE1 and UE2 can be switched to conventional communication mode.

Embodiment bis-

Fig. 6 A to Fig. 6 B shows the schematic diagram of switch communication mode according to another embodiment of the invention.

As shown in Figure 6A, suppose that UE1 and UE2 are all in the coverage in base station eNB, and set up correspondence by traditional mode between UE1 and UE2, UE1 and UE2 realize the mutual of data and/or signaling by eNB, S-GW/MME.

As shown in Figure 6B, UE1 and UE2 are continued to detect, suppose that the distance detecting between two UE is less than threshold value A, and/or UE1 receives from receiving intensity or the signal quality of measurement pilot frequency/search for pilots of UE2 and be greater than threshold value B (or UE2 receives the pilot signal from UE1), the communication pattern of UE1 and UE2 can be switched to direct D2D communication pattern.

Meanwhile, based on above-mentioned direct D2D communication pattern, even if UE1 and UE2 leave the coverage of eNB, still can guarantee smooth communication between the two.In addition, can, by as the prompting such as interface, sound, inform that the user that UE1 and UE2 are corresponding remains in certain scope, to guarantee carrying out smoothly of communication process.

Embodiment tri-

Fig. 7 A to Fig. 7 B shows the schematic diagram of switch communication mode according to still another embodiment of the invention.

As shown in Figure 7 A, suppose that UE1 and UE2 are respectively in the coverage in base station eNB 1 and eNB2, and set up correspondence by traditional mode between UE1 and UE2, UE1 and UE2 realize the mutual of data and/or signaling by eNB1, S-GW/MME, eNB2.

UE1 and UE2 are continued to detect, suppose that the distance detecting between two UE is less than threshold value A, and/or UE1 receives from receiving intensity or the signal quality of measurement pilot frequency/search for pilots of UE2 and be greater than threshold value B (or UE2 receives the pilot signal from UE1), and/or detect that the Radio Resource load of eNB1 or eNB2 or resource utilization are greater than threshold value L ₁, the communication pattern of UE1 and UE2 can be switched to direct D2D communication pattern.

As shown in Figure 7 B, suppose that UE1 and UE2 are respectively in the coverage in base station eNB 1 and eNB2, and set up correspondence by traditional mode between UE1 and UE2.

UE1 and UE2 are continued to detect, although suppose and detect that two UE are in different communities, but distance is between the two greater than threshold value C(C>=A), be less than threshold value D(D>=C), and/or detect that the Radio Resource load of eNB1 or eNB2 or resource utilization are less than threshold value L ₂, the communication pattern of UE1 and UE2 can be switched to the D2D communication pattern of relaying, take eNB1 and eNB2 as relaying, by eNB1 and eNB2 by carrying out the transmission of data and/or signaling as X2 interface.

Fig. 8 shows the schematic block diagram of the radio communication device as network side according to an embodiment of the invention.

As shown in Figure 8, radio communication device 800 as network side according to an embodiment of the invention, comprise: message frame generation unit 802, for generating messages frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self, or described recipient measured and judge self D2D communication capacity; Data interaction unit 804, sends described message frame at least one party to both sides' equipment that need to carry out D2D communication, and receives measurement result and/or judged result that described recipient returns.

In technique scheme, preferably, also comprise: type determining unit 806, the described measurement result receiving for basis, D2D communication capacity to described recipient is estimated, and determine that according to estimated result can described both sides' equipment carry out D2D communication, and in the time determining that can carry out D2D communicates by letter, the concrete D2D communication type adopting; Described message frame generation unit 802 also, for generate pattern notification message frame, comprises the communication pattern that described recipient need to adopt in described pattern communication message frame, and for frequency domain and/or the time-domain resource of communication process; And described data interaction unit 804 also for: send described pattern notification message frame to described recipient.

In technique scheme, preferably, described measurement result comprises: the actual range between described both sides' equipment and/or path fading value, and/or channel conditions between described both sides' equipment, described type determining unit 806 for: when described actual range and/or described path fading value are less than or equal to the first corresponding predetermined threshold value, and/or described channel conditions is while being better than the first preset channel condition, judges that described both sides' equipment can carry out direct D2D communication; When described actual range and/or described path fading value are greater than described the first predetermined threshold value and are less than or equal to the second predetermined threshold value, and/or described channel conditions is when being inferior to described the first preset channel condition and being better than the second preset channel condition, judges that described both sides' equipment can carry out relaying D2D communication; When described actual range and/or described path fading value are greater than described the second predetermined threshold value, and/or described channel conditions is while being inferior to described the second preset channel condition, judges that described both sides' equipment can not carry out D2D communication.

In above-mentioned arbitrary technical scheme, preferably, also comprise: request generation unit 808, for generate shunting request in the situation that definite described both sides' equipment can carry out D2D communication, in described shunting request, comprise either one or both the mark in described both sides' equipment, represent that described both sides' equipment need to carry out to the shunting of D2D communication; Described data interaction unit 804 also for: send described shunting request to core net, and in the time receiving the confirmation message frame returning, at least one party in described both sides' equipment sends the instruction that adopts D2D communication pattern.

In above-mentioned arbitrary technical scheme, preferably, also comprise: pre-decision unit 810, for before described message frame generation unit 802 generates described message frame, described both sides' equipment is carried out to the pre-judgement in position and/or ability is adjudicated in advance, if pre-court verdict is meet correspondence pre-conditioned, generates described message frame by described message frame generation unit 802, otherwise do not generate; Wherein, the pre-judgement in described position comprises: obtain the adjacent end database corresponding to described recipient that described recipient safeguards or that network side is safeguarded, and/or obtain described both sides' equipment and distinguish residing area information, to determine whether that either party in described both sides' equipment is in adjacent end database corresponding to the opposing party, and/or described both sides' equipment is in same area; The pre-judgement of described ability comprises: obtain the second state information of network side corresponding to the first state information of described recipient and/or described recipient, to determine whether described the first state information and/or described the second state information meet corresponding status condition.

Fig. 9 shows the schematic block diagram of base station according to an embodiment of the invention.

As shown in Figure 9, base station 900 according to an embodiment of the invention, comprises the radio communication device 800 of side Network Based as shown in Figure 8.

Figure 10 shows the schematic block diagram of the radio communication device as end side according to an embodiment of the invention.

As shown in figure 10, the radio communication device 1000 as end side according to an embodiment of the invention, comprising: request initiating cell 1002, for initiating to the handover request of D2D communication pattern; Data interaction unit 1004, for receipt message frame, described message frame is for making radio communication device described in it measure the D2D communication capacity of self, or makes described radio communication device measure and judge the D2D communication capacity of self; Operation execution unit 1006, for carrying out described measurement operation or described measurement decision operation, with transmit leg return measurement result and/or the judged result to described message frame by described data interaction unit 1004.

In technique scheme, preferably, described data interaction unit 1004 also for: receive the pattern communication message frame from the transmit leg of described message frame, in described pattern communication message frame, comprise the communication pattern that described radio communication device need to adopt, and for frequency domain and/or the time-domain resource of communication process; And described radio communication device also comprises: communication realizes unit 1008, for according to described communication pattern and described frequency domain and/or time-domain resource, realizes corresponding communication process.

In technique scheme, preferably, described data interaction unit 1004 also for: receive the pre-decision instruction from the transmit leg of described message frame; Wherein, described data interaction unit 1004, according to described pre-decision instruction, returns to the adjacent end database that described radio communication device is safeguarded, and/or the state information of described radio communication device.

As shown in figure 11, terminal 1100 according to an embodiment of the invention, comprises the radio communication device based on end side 1000 as shown in figure 10.

More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of wireless communications method, a kind of radio communication device, a kind of base station and a kind of terminal, can realize Measurement accuracy to the communication equipment of request D2D communication, thereby accurately select optimum communication pattern, thereby contribute to save terminal energy consumption, raising frequency efficiency.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a wireless communications method, is characterized in that, comprising:

Generating messages frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self, or described recipient measured and judge self D2D communication capacity;

Send described message frame at least one party that need to carry out in both sides' equipment of D2D communication, and receive measurement result and/or judged result that described recipient returns.

2. wireless communications method according to claim 1, is characterized in that, when described message frame is physical layer signaling:

If described physical layer signaling is the first value, represent that described recipient need to carry out described measurement operation, or described measurement decision operation;

If or described physical layer signaling is special value, represent that described recipient need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

3. wireless communications method according to claim 1, is characterized in that, described message frame is RRC signaling or application layer signaling, and described RRC signaling or application layer signaling comprise:

Action type information, if described action type information is the first value, represents that described recipient need to carry out described measurement operation, or described measurement decision operation;

Or resource index information, if described resource index information is special value, represent that described recipient need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation;

Or frequency domain resource information and/or time-domain resource information, represent that described recipient need to utilize corresponding frequency domain resource and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

4. wireless communications method according to claim 1, is characterized in that, also comprises:

According to the described measurement result receiving, described recipient's D2D communication capacity is estimated;

Determine that according to estimated result can described both sides' equipment carry out D2D communication, and in the time determining that can carry out D2D communicates by letter, the concrete D2D communication type adopting; And

To described recipient's sending mode notification message frame, in described pattern communication message frame, comprise the communication pattern that described recipient need to adopt, and for frequency domain and/or the time-domain resource of communication process.

5. wireless communications method according to claim 4, is characterized in that, described measurement result comprises: the actual range between described both sides' equipment and/or path fading value, and/or channel conditions between described both sides' equipment; And

The estimation of the D2D communication capacity to described recipient specifically comprises:

6. according to the wireless communications method described in any one in claim 1 to 5, it is characterized in that, in the time that definite described both sides' equipment can carry out D2D communication, also comprise:

The shunting request of generation, comprises either one or both the mark in described both sides' equipment in described shunting request, represent that described both sides' equipment need to carry out to the shunting of D2D communication;

Send described shunting request to core net, and in the time receiving the confirmation message frame returning, at least one party in described both sides' equipment sends the instruction that adopts D2D communication pattern.

7. wireless communications method according to claim 6, is characterized in that, described shunting request also comprises:

Granularity information, represents that described both sides' equipment need to be based on equipment, APN, radio bearer and/or IP stream, and realization is to the shunting of D2D communication.

8. according to the wireless communications method described in any one in claim 1 to 5, it is characterized in that, before generating described message frame, also comprise:

Described both sides' equipment is carried out to the pre-judgement in position and/or ability is adjudicated in advance, if pre-court verdict is to meet corresponding pre-conditionedly, generates described message frame, otherwise do not generate;

Wherein, the pre-judgement in described position comprises: obtain the adjacent end database corresponding to described recipient that described recipient safeguards or that network side is safeguarded, and/or obtain described both sides' equipment and distinguish residing area information, to determine whether that either party in described both sides' equipment is in adjacent end database corresponding to the opposing party, and/or described both sides' equipment is in same area;

The pre-judgement of described ability comprises: obtain the second state information of network side corresponding to the first state information of described recipient and/or described recipient, to determine whether described the first state information and/or described the second state information meet corresponding status condition.

9. wireless communications method according to claim 8, is characterized in that,

Described the first state information comprise following at least one or a combination set of:

Described recipient's real-time electric weight;

Described recipient's real-time power consumption;

The opening of described recipient's D2D communication function;

The resource utilization of wireless link;

The resource load state of wireless link;

The resource utilization of return link;

The resource load state of return link;

The loading condition of core network data face node (as SGW) and signaling plane node (as MME).

10. a radio communication device, is characterized in that, comprising:

Message frame generation unit, for generating messages frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self, or described recipient measured and judge self D2D communication capacity;

Data interaction unit, sends described message frame at least one party to both sides' equipment that need to carry out D2D communication, and receives measurement result and/or judged result that described recipient returns.

11. radio communication devices according to claim 10, is characterized in that, when described message frame is physical layer signaling:

12. radio communication devices according to claim 10, is characterized in that, described message frame is RRC signaling or application layer signaling, and described RRC signaling or application layer signaling comprise:

13. radio communication devices according to claim 10, is characterized in that, also comprise:

Type determining unit, for according to the described measurement result receiving, described recipient's D2D communication capacity is estimated, and determined that according to estimated result can described both sides' equipment carry out D2D communication, and in the time determining that can carry out D2D communicates by letter, the concrete D2D communication type adopting;

Described message frame generation unit also, for generate pattern notification message frame, comprises the communication pattern that described recipient need to adopt in described pattern communication message frame, and for frequency domain and/or the time-domain resource of communication process; And

Described data interaction unit also for: send described pattern notification message frame to described recipient.

14. radio communication devices according to claim 13, it is characterized in that, described measurement result comprises: the actual range between described both sides' equipment and/or path fading value, and/or channel conditions between described both sides' equipment, and described type determining unit is used for:

15. according to claim 10 to the radio communication device described in any one in 14, it is characterized in that, also comprises:

Request generation unit, for generate shunting request in the situation that definite described both sides' equipment can carry out D2D communication, in described shunting request, comprise either one or both the mark in described both sides' equipment, represent that described both sides' equipment need to carry out to the shunting of D2D communication;

Described data interaction unit also for: send described shunting request to core net, and in the time receiving the confirmation message frame returning, at least one party in described both sides' equipment sends the instruction that adopts D2D communication pattern.

16. radio communication devices according to claim 15, is characterized in that, described shunting request also comprises:

17. according to claim 10 to the radio communication device described in any one in 14, it is characterized in that, also comprises:

Pre-decision unit, for before described message frame generation unit generates described message frame, described both sides' equipment is carried out to the pre-judgement in position and/or ability is adjudicated in advance, if pre-court verdict is meet correspondence pre-conditioned, generate described message frame by described message frame generation unit, otherwise do not generate;

18. radio communication devices according to claim 17, is characterized in that,

Described recipient's real-time electric weight;

Described recipient's real-time power consumption;

The opening of described recipient's D2D communication function;

The resource utilization of wireless link;

The resource load state of wireless link;

The resource utilization of return link;

The resource load state of return link;

19. 1 kinds of base stations, is characterized in that, comprising: the radio communication device as described in any one in claim 10 to 18.

20. 1 kinds of wireless communications methods, is characterized in that, comprising:

Initiate the handover request to D2D communication pattern;

Receipt message frame, described message frame is for making the recipient of described message frame measure the D2D communication capacity of self, or described recipient measured and judge self D2D communication capacity;

Carry out described measurement operation or described measurement decision operation, and to transmit leg return measurement result and/or the judged result of described message frame.

21. wireless communications methods according to claim 20, is characterized in that, when described message frame is physical layer signaling:

22. wireless communications methods according to claim 20, is characterized in that, described message frame is RRC signaling or application layer signaling, and described RRC signaling or application layer signaling comprise:

23. wireless communications methods according to claim 20, is characterized in that, also comprise:

Receive the pattern communication message frame from the transmit leg of described message frame, in described pattern communication message frame, comprise the communication pattern that described recipient need to adopt, and for frequency domain and/or the time-domain resource of communication process; And

According to described communication pattern and described frequency domain and/or time-domain resource, realize corresponding communication process.

24. wireless communications methods according to claim 20, is characterized in that, also comprise:

Receive the pre-decision instruction from the transmit leg of described message frame;

According to described pre-decision instruction, return to the adjacent end database that described recipient safeguards, and/or described recipient's state information.

25. wireless communications methods according to claim 24, is characterized in that, described state information comprise following at least one or a combination set of:

Described recipient's real-time electric weight;

Described recipient's real-time power consumption;

The opening of described recipient's D2D communication function.

26. 1 kinds of radio communication devices, is characterized in that, comprising:

Request initiating cell, for initiating to the handover request of D2D communication pattern;

Data interaction unit, for receipt message frame, described message frame is for making radio communication device described in it measure the D2D communication capacity of self, or makes described radio communication device measure and judge the D2D communication capacity of self;

Operation execution unit, for carrying out described measurement operation or described measurement decision operation, with transmit leg return measurement result and/or the judged result to described message frame by described data interaction unit.

27. radio communication devices according to claim 26, is characterized in that, when described message frame is physical layer signaling:

If described physical layer signaling is the first value, represent that described radio communication device need to carry out described measurement operation, or described measurement decision operation;

If or described physical layer signaling is special value, represent that described radio communication device need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

28. radio communication devices according to claim 26, is characterized in that, described message frame is RRC signaling or application layer signaling, and described RRC signaling or application layer signaling comprise:

Action type information, if described action type information is the first value, represents that described radio communication device need to carry out described measurement operation, or described measurement decision operation;

Or resource index information, if described resource index information is special value, represent that described radio communication device need to be to the preset frequency domain resource take described special value as index and/or time-domain resource, carry out described measurement operation, or described measurement decision operation;

Or frequency domain resource information and/or time-domain resource information, represent that described radio communication device need to utilize corresponding frequency domain resource and/or time-domain resource, carry out described measurement operation, or described measurement decision operation.

29. radio communication devices according to claim 26, is characterized in that,

Described data interaction unit also for: receive the pattern communication message frame from the transmit leg of described message frame, in described pattern communication message frame, comprise the communication pattern that described radio communication device need to adopt, and for frequency domain and/or the time-domain resource of communication process; And

Described radio communication device also comprises: communication realizes unit, for according to described communication pattern and described frequency domain and/or time-domain resource, realizes corresponding communication process.

30. radio communication devices according to claim 26, is characterized in that,

Described data interaction unit also for: receive the pre-decision instruction from the transmit leg of described message frame;

Wherein, described data interaction unit, according to described pre-decision instruction, returns to the adjacent end database that described radio communication device is safeguarded, and/or the state information of described radio communication device.

31. radio communication devices according to claim 30, is characterized in that, described state information comprise following at least one or a combination set of:

The real-time electric weight of described radio communication device;

The real-time power consumption of described radio communication device;

The opening of the D2D communication function of described radio communication device.

32. 1 kinds of terminals, is characterized in that, comprising: the radio communication device as described in any one in claim 26 to 31.