CN103379570B - Method for processing business, base station and subscriber equipment - Google Patents
Method for processing business, base station and subscriber equipment Download PDFInfo
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Abstract
The present invention provides a kind of method for processing business, base station and subscriber equipment, and wherein, described method includes: receive UE and the two UE measurement report relevant to D2D sent respectively；Determining that the UE in cellular communication and described 2nd UE reaches D2D communication condition according to described measurement report, then send the configuration message of configuration D2D communication to UE and the two UE respectively, configuration message is used for carrying out D2D communication connection by UE and the two UE；And after UE and the two UE switches to D2D communication from cellular communication, retain the service connection context set up respectively when UE and the two UE carries out cellular communication with base station；After UE and the two UE switches to cellular communication from D2D communication, service connection context and a UE and described 2nd UE is used to carry out the transmission of business datum。Said method ensure that a business is not interrupted during switching between D2D communication and cellular communication。
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of method for processing business, base station and subscriber equipment。
Background technology
Network towards IMT-Advanced (IMT-Advanced) is the network of an isomery, wherein system (the i.e. cellular system of existing centerized fusion, such as WiMAX, LTE, TD-SCDMA etc.), comprise again ad-hoc or MESH (netted) system that can directly communicate between subscriber equipment。In Centralized Control System, the control of base station (BS, or NB, eNB) is passed through in the communication between all of subscriber equipment (UserEquipment is called for short UE)。And in the ad-hoc network, communication between UE1, UE2, can be made directly, or relayed by another UE。
In cellular networks, even if two UE (such as UE1, UE2) are adjacent close, also by the control that the master controller of base station etc communicates。The advantage of the system of such centerized fusion is easy for resource management and interference controls, and but has the disadvantage that the service efficiency of resource is not high。Such as, even if two UE close proximity, double resource is also used to communicate。Therefore, in order to improve frequency spectrum service efficiency, obtain higher throughput of system, LTE-Advanced has been proposed for the pattern such as end-to-end (Device-to-Device of directly communication between a kind of UE, it is called for short D2D), the network that such communication network will be no longer single-mode, but centralized network and distributed network the hybrid network deposited。Compared with the network of single-mode, hybrid network can will promote the performance of communication system undoubtedly larger。
D2D system belongs to ad-hoc system, is fully distributed, can be made directly communication between subscriber equipment under meeting certain condition。In prior art, D2D system is to share same asset with cellular system in the way of Underlay, to improve the availability of frequency spectrum。Especially, the UE in D2D system needs to receive the control of cellular system, to provide the business such as information sharing, game, social interaction server and moving advertising。When carrying out D2D communication between two UE, it is necessary to return to cellular communication in certain, so UE is likely to need to toggle between D2D communication and cellular communication。
But, in prior art, the service interaction between two UE, once have selected D2D communication, just cannot be reconverted into cellular communication, and vice versa。Thus cause that D2D communication and cellular communication can not be changed mutually, there is the possibility of D2D service disconnection。How to ensure that the service interaction between two UE does not interrupt becoming during switching between D2D communication and cellular communication to be currently needed for solving the technical problem that。
Summary of the invention
For defect of the prior art, the embodiment of the present invention provides a kind of method for processing business, base station and subscriber equipment。
The method for processing business that the embodiment of the present invention provides, including:
Receive first user equipment UE and the 2nd UE measurement report relevant to end-to-end D2D sent respectively；
Determine that the described UE in cellular communication and described 2nd UE reaches D2D communication condition according to described measurement report, then send the configuration D2D configuration message communicated respectively to a described UE and described 2nd UE, described configuration message is used for carrying out D2D communication connection by a described UE and described 2nd UE；And
Switch to from described cellular communication after D2D communicates at a described UE and described 2nd UE, retain the service connection context set up with base station respectively when described UE and the two UE carries out cellular communication；
After a described UE and described 2nd UE communicates from described D2D and to switch to cellular communication, described service connection context and a described UE and described 2nd UE is used to carry out the transmission of business datum。
The method for processing business that the embodiment of the present invention provides, including:
Carrying out in cellular communication process at user equipment (UE) with another UE, described UE sends the measurement report relevant to end-to-end D2D to base station；
Described UE receives described base station in response and carries out the D2D configuration message communicated in described UE and another UE that described measurement report sends；
After described UE carries out D2D communication connection according to described configuration message and another UE described, retain the service connection context set up when described UE carries out cellular communication with described base station, and in described D2D communicates transport service data；
After described UE switches to cellular communication from described D2D communication, described service connection context and base station is used to carry out the transmission of business datum。
The base station that the embodiment of the present invention provides, including:
Receive unit, for receiving first user equipment UE and the 2nd UE measurement report relevant to end-to-end D2D sent respectively；
Determine unit, for determining whether the described UE in cellular communication and described 2nd UE reaches D2D communication condition according to described measurement report；
Transmitting element, for determining that unit determines that a described UE and described 2nd UE reaches D2D communication condition described, then send the configuration D2D configuration message communicated respectively to a described UE and described 2nd UE, described configuration message is used for carrying out D2D communication connection by a described UE and described 2nd UE；
Stick unit, for switching to after D2D communicate from described cellular communication at a described UE and described 2nd UE, retain when described UE and the two UE carries out cellular communication respectively with the service connection context of base station foundation；
Data transmission unit, after communicate from described D2D to switch to cellular communication at a described UE and described 2nd UE, uses described service connection context and a described UE and described 2nd UE to carry out the transmission of business datum。
The subscriber equipment that the embodiment of the present invention provides, including:
Transmitting element, for carrying out in cellular communication process at user equipment (UE) with another UE, sends the measurement report relevant to end-to-end D2D to base station；
Receive unit, carry out the D2D configuration message communicated for receiving described base station in response in described UE and another UE that described measurement report sends；
Stick unit, for after carrying out D2D communication connection according to described configuration message and another UE described, retains the service connection context set up when described UE carries out cellular communication with described base station, and in described D2D communicates transport service data；And after described UE switches to cellular communication from described D2D communication, use described service connection context and base station to carry out the transmission of business datum。
As shown from the above technical solution, the method for processing business of the embodiment of the present invention, base station and subscriber equipment, by according to a UE in cellular communication, the measurement report relevant to D2D that 2nd UE sends determines a UE, when 2nd UE can carry out D2D communication, to a UE, 2nd UE sends configuration message, so that UE and the two UE sets up D2D communication connection, and base station retains the UE service connection context communicated with base station after UE and the two UE switches to D2D communication from cellular communication, the service connection context that 2nd UE communicates with base station, so that UE and the two UE uses above-mentioned service connection context to carry out the transmission of business datum when switching to cellular communication from D2D communication；And then achieve the business datum between two UE can switching between D2D communication and cellular communication, and ensure that business datum is not interrupted, reduce the load of base station, effectively save the resource of cellular network。
Accompanying drawing explanation
In order to be illustrated more clearly that technical scheme, the accompanying drawing used required in embodiment will be briefly described below, apparently: accompanying drawings below is the accompanying drawing of some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing that can realize technical solution of the present invention equally according to these accompanying drawings。
Fig. 1 is the scene graph that the method for processing business of the present invention is applied；
Fig. 2 is the scene graph of the subscriber equipment of present invention switching between D2D communication and cellular communication；
The schematic flow sheet of the method for processing business that Fig. 3 provides for one embodiment of the invention；
The schematic flow sheet of the method for processing business that Fig. 4 provides for one embodiment of the invention；
The schematic flow sheet of the method for processing business that Fig. 5 provides for one embodiment of the invention；
The schematic flow sheet of the method for processing business that Fig. 6 provides for one embodiment of the invention；
The structural representation of the base station that Fig. 7 provides for one embodiment of the invention；
The structural representation of the subscriber equipment that Fig. 8 provides for one embodiment of the invention。
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme is clearly and completely described。Obviously, each following embodiment is all the embodiment of a present invention part。Based on each embodiment that the present invention is following, those of ordinary skill in the art are even without making creative work, equivalent transformation technical characteristic partially or completely can also be passed through, and obtain and can solve the problem that the technology of the present invention problem, realize the other embodiments of the technology of the present invention effect, and these each embodiments converting and coming are obviously without departing from scope disclosed in this invention。
The embodiment of the present invention is applied to Long Term Evolution (LongTermEvolution is called for short LTE), 2G/3G network。For LTE scene, referring to Fig. 1, Fig. 2, wherein, UE3, UE2 communicate with network side base station respectively, and UE2 and UE3 also can directly communicate, and above two communication can use identical resource (such as frequency spectrum resource)；Between this UE2 and UE3, the mode of directly communication is D2D communication mode, and the resource that UE2 and UE3 uses is base station distribution。
Generally; the safety of LTE system is at PDCP (PacketDataConvergenceProtocol; it is called for short PDCP) layer realization; PDCP layer includes safely encryption and integrity protection two parts; wherein business datum only implements encryption; signaling data implements encryption and two kinds of safeguard protections of integrity protection, and the D2D communication between UE2 and the UE3 of the embodiment of the present invention only relates to the transmission of business datum, is not related to the transmission of signaling data。
First the mutual of the business datum between two UE in the embodiment of the present invention be UE2--base station--UE3, when the signal quality (such as transmitting power) of UE2 and UE3 disclosure satisfy that the D2D condition communicated, base station issues configuration message to UE2, UE3, so that UE2 and UE3 sets up communication connection, with direct business transferring data。
In below example, the UE2 in Fig. 1 is defined as a UE, and the UE3 in Fig. 1 is defined as the 2nd UE。Wherein, a UE can send business datum to the 2nd UE, it is also possible to receives the 2nd UE business datum sent。
Embodiment one
Fig. 3 illustrates the schematic flow sheet of the method for processing business that one embodiment of the invention provides, as it is shown on figure 3, the method for processing business in the present embodiment is as mentioned below。
301, base station receives UE and the two UE measurement report relevant to D2D sent respectively。
For example, corresponding for UE with the oneth measurement report comprises the steps that transmitting power or the signal quality etc. of the 2nd UE；The measurement report corresponding for UE with the 2nd comprises the steps that transmitting power or the signal quality etc. of a UE。
302, UE and the two UE that base station is determined in cellular communication according to measurement report reaches D2D communication condition, then send the configuration message of configuration D2D communication respectively to UE and the two UE, described configuration message is used for carrying out D2D communication connection by a described UE and described 2nd UE。
The transmitting power that above-mentioned D2D communication condition can be an above-mentioned UE and/or the 2nd UE all reaches the threshold value preset。
Or,
D2D communication condition includes the signal quality of UE measurement the 2nd UE and meets D2D communicating requirement, and/or, the 2nd UE measures the signal quality of a UE and meets D2D communicating requirement。
For example, the configuration message at this place includes: set up the control information required for the D2D communication connection of transport service data and security parameter。
Further, control information comprises the steps that the up-downgoing in instruction D2D communication；Or, base station instruction the oneth UE and the two UE one of them be main UE, another be from UE, it is determined that from main UE to from the data of UE be D2D communicate up。
Or, in other examples, one of them of instruction the oneth UE and the two UE is main UE, another is for from UE, it is determined that from main UE to being descending D2D communication from the data of UE。
Especially, above-mentioned main UE can be regarded as virtual base station, and now, virtual base station is then descending to another UE data sent。Such as, one of them of base station instruction the oneth UE and the two UE is virtual base station, in order to determine the up-downgoing in D2D communication。
By the determination of up-downgoing, it is possible in being communicated by D2D, up-downgoing is divided in two kinds of transmission directions of two UE。
Certain practical application can also determine up-downgoing according to certain rule, for instance the data of receiving end of making a start are up, otherwise be descending。
In other examples, the control information at this place may also include that the content such as the running time-frequency resource of business datum, D2D communication identifier。
Security parameter in this step can include following one or more: the key of D2D communication, produces the COUNT value of counting of the parameter of key of D2D communication, the security algorithm of D2D communication, the carrying of D2D communication, the up-downgoing instruction of D2D communication, D2D communication。
303, after UE and the two UE switches to D2D communication from cellular communication, the service connection context set up respectively when UE and the two UE carries out cellular communication is retained with base station。
304, after UE and the two UE switches to cellular communication from D2D communication, the service connection context retained and a UE, the 2nd UE is used to carry out the transmission of business datum。
That is, the service connection context of each UE that base station retains switches back into, from D2D communication, the business datum transmitted by base station cellular communication for transmitting, so that when making two UE mutually switch in D2D communication and cellular communication, the transmission of business datum is not interrupted。
Further, base station retains the UE service connection context communicated with base station, namely retains the first security parameter in service connection context when a UE communicates with base station。For example, the first security parameter comprises the steps that a UE the first security algorithm in cellular communications, the first key, first carrying etc.；
Correspondingly, base station retains the 2nd UE service connection context communicated with base station, namely retains the second security parameter in service connection context when the 2nd UE communicates with base station。For example, the second security parameter comprises the steps that the 2nd UE the second security algorithm in cellular communications, the second key and second carrying etc.。
Preferably, the first security parameter also includes: the COUNT value of UE counting in cellular communications, the configuration etc. that each layer of protocol stack is corresponding；Second security parameter also includes: the COUNT value of the 2nd UE counting in cellular communications, the configuration etc. that each layer of protocol stack is corresponding。
It should be noted that, configuring the carrying in the security parameter of message (i.e. carrying in D2D communication) in above-mentioned steps 302 can be consistent with the first carrying that a UE uses in cellular communications, or, can be consistent with the second carrying that the 2nd UE uses in cellular communications。For example, if instruction the oneth UE is virtual base station in the control information of configuration message, the 2nd UE is terminal, and now configuring the carrying in the security parameter of message can be consistent with the second carrying that the 2nd UE uses in cellular communications。
UE2, UE3 (as shown in Figure 1) of cellular communication in prior art each and eNB have a set of security parameter, it for being encrypted transmission in cellular communications to business datum, and two set security parameter (i.e. the security parameter of the security parameter of UE2 and eNB, UE3 and eNB) orthogonals。
And in D2D communicates, between UE2, UE3, consult a set of security parameter。If the switching between D2D communication and cellular communication of same service needed, and guarantee business do not interrupt, then base station is realize UE2, UE3 of D2D communication to retain the security parameter of part in former cellular communication be necessary。
Currently, for each UE, the security parameter of base station configuration comprises the steps that KEY (key), COUNT (count value of enumerator), DIRECTION (up-downgoing instruction), BEARER (carrying) etc.。It addition, also have a security algorithm to come according to UE ability, each UE supports that security algorithm is certain, and is indeclinable。When UE enters radio resource control (RadioResourceControl is called for short RRC) connection mode, eNB needs to configure security parameter for each UE, so that UE and eNB starts business datum is carried out secure interactive。
Wherein, KEY is the key that parameter according to network delivery calculates in this locality, and COUNT value is with regard to the count value of a suitable enumerator, and it counts for packet that PDCP (PDCP) layer adds ciphertext data。Generally, COUNT value includes two parts composition, and as represented high-order HFN value and representing the SN value of low level, DIRECTION is up-downgoing instruction, and BEARER is carrying。
It should be noted that the HFN value in the COUNT value at this place and SN value are existing content, the present embodiment is no longer described in greater detail。
From above-described embodiment, the method for processing business of the present embodiment, by according to a UE in cellular communication, the measurement report relevant to D2D that 2nd UE sends determines a UE, when 2nd UE can carry out D2D communication, to a UE, 2nd UE sends configuration message, so that UE and the two UE sets up D2D communication connection, with transport service data, and base station retains the UE service connection context communicated with base station after UE and the two UE switches to D2D communication from cellular communication, the service connection context that 2nd UE communicates with base station, so that UE and the two UE uses above-mentioned service connection context to carry out the transmission of business datum when switching to cellular communication from D2D communication；；And then achieve the business datum between two UE can switching between D2D communication and cellular communication, and ensure that business datum is not interrupted, reduce the load of base station, effectively save the resource of cellular network。
Embodiment two
Fig. 4 illustrates the schematic flow sheet of the method for processing business that one embodiment of the invention provides, and as shown in Figure 4, the method for processing business in the present embodiment is as mentioned below。
401, base station receives UE and the two UE measurement report relevant to D2D sent respectively；UE and the two UE that base station is determined in cellular communication according to measurement report reaches D2D communication condition, then send the configuration D2D configuration message communicated respectively to a UE and described 2nd UE, and this configuration message is used for carrying out D2D communication connection by UE and the two UE。
402, base station is after UE and the two UE switches to D2D communication from cellular communication, retain the UE service connection context communicated with base station, such as, the first security parameter in service connection context, and retain the 2nd UE service connection context communicated with base station, such as, the second security parameter in service connection context, and then after UE and the two UE switches to cellular communication from D2D communication, use described service connection context and a UE and the 2nd UE to carry out the transmission of business datum。
403, when UE and the two UE switches to cellular communication from D2D communication, oneth UE and the two UE retains the D2D used in D2D communication respectively and connects context, such as retain D2D and connect the security parameter of the D2D communication in context, so that using the security parameter of the D2D retained communication to carry out the transmission of business datum when UE and the two UE switches to D2D communication from cellular communication。
It is to say, base station makes UE and the two UE use a UE and the described 2nd UE D2D retained the respectively D2D used communicating to connect context when again switching to D2D communication from cellular communication carries out the transmission of business datum。
404, after UE and the two UE switches to cellular communication from D2D communication, if a UE, the 2nd UE retain UE and the two UE respectively, the D2D used in D2D communicates connects upper and lower sky,
Now, base station receives the UE communication information sent by the UE service connection context retained to base station, carries a UE and retain the information of described D2D connection context in communication information；
A described UE and described 2nd UE again from described cellular communication switch to described D2D communicate time, indicate a described UE and described 2nd UE to use described D2D to connect context and carry out the transmission of described business datum。
In other embodiments, base station also can pass through the communication information that the 2nd UE service connection context retained sends to base station by the 2nd UE, carries described 2nd UE and retain the information of described D2D connection context in communication information；And then when UE and the two UE switches to D2D communication from cellular communication again, instruction the oneth UE and the two UE uses D2D connection context to carry out the transmission of described business datum。
Or, base station receives UE and the two UE above-mentioned communication information sent respectively simultaneously。
In another kind of application scenarios, the measurement report relevant to D2D that a UE sends to base station carries the mark of the D2D with a grain of salt security parameter communicated。Or, the measurement report that the D2D that the 2nd UE sends to base station is correlated with carries the mark of the security parameter of D2D with a grain of salt communication。
Additionally, when between a UE and the 2nd UE, the business datum of transmission switches to from D2D communication and transmits (i.e. cellular communication) by base station, the Partial security parameter of business datum can be carried and is transferred to base station in above-mentioned communication information by the oneth UE and the two UE, for instance the Partial security parameter of transmission can include one or more following combinations: counting (SN) value of packet data convergence (PDCP) layer；Counting (HFN) value of packet data convergence (PDCP) layer。
Counting (SN) value at this place and/or the COUNT value of counting (HFN) value composition enumerator。
If it should be noted that the Partial security parameter of above-mentioned transmission only carries HFN value, then SN value resets, and in actual applications, if above-mentioned HFN value, SN value are all carried in the security parameter of transmission, now can also SN value be reset。
For example, base station can receive the communication information that the first security parameter between a UE UE and the base station passing through to retain sends, and/or, receive the communication information that the 2nd UE the second security parameter passing through between the 2nd UE and the base station retained sends；And realize the cellular communication between UE and the two UE according to communication information。The communication information at this place carries the SN value of above-mentioned PDCP layer, and/or, the HFN value of PDCP layer, and carry the information retaining described D2D connection context。
Mutually can switching between cellular communication and D2D communicate alternately of business datum between above-mentioned two UE。
In actual applications, the COUNT value of the enumerator in the oneth UE and the 2nd UE security parameter each and between base station in a cellular communication network can the continuity of discontinuity, if a UE when carrying out D2D and communicating with the 2nd UE, in cellular communication, the COUNT value of respective enumerator is retained, after UE and the two UE switches to cellular communication from D2D communication, the COUNT value of the former enumerator retained in cellular communications can be adopted to carry out follow-up change。
Accordingly, in D2D communication, the COUNT value of the security parameter Counter of D2D communication between a UE and the 2nd UE can also the continuity of discontinuity。
In another embodiment, also it is that UE and the two UE passes through D2D communication, one business datum of cellular communications transmissions, now D2D communication, cellular communication can continue the COUNT value of enumerator jointly。
Such as, a UE, when switching to cellular communication from D2D communication, carries the COUNT value of the D2D enumerator communicated in the communication information that the first security parameter between the UE and the base station that adopt base station to retain sends；
Correspondingly, the 2nd UE also can carry the COUNT value of the D2D enumerator communicated in the communication information that sends of the second security parameter between the 2nd UE and base station that base station retains；And
Oneth UE and the two UE from cellular communication switch to D2D communication time, can configuration message D2D communication security parameter in carry the COUNT value of the enumerator of a UE in cellular communication or the COUNT value of the enumerator of the 2nd UE。
In actual applications, when UE and the two UE switches to cellular communication from D2D communication, UE and the two UE can no longer retain the D2D used in D2D communication and connect context, the security parameter of D2D described above communication。Such as, when the D2D communication condition that a UE and/or the 2nd UE detects current UE and the two UE is unsatisfactory for, UE and the two UE can no longer retain the D2D used in D2D communication and connect context, the security parameter of D2D as above communication。
Further, if in other embodiments, if a UE, the 2nd UE switch to cellular communication from D2D communication, first security parameter of a uncensored corresponding UE in cellular communication, and second security parameter of corresponding 2nd UE, then base station needs to set up respectively the respective security parameter of a corresponding UE, the 2nd UE, using as new Business Processing, now go up one by the D2D service ending communicated or interruption, and the COUNT value of the counting in new business starts new counting。
By above-described embodiment it can be seen that the method for processing business of the present embodiment, it is achieved that the business datum between two UE can switching between D2D communication and cellular communication, it is ensured that business datum is not interrupted, and reduces the load of base station, effectively saves the resource of cellular network。
Embodiment three
Fig. 5 illustrates the schematic flow sheet of the method for processing business that one embodiment of the invention provides, as it is shown in figure 5, the method for processing business in the present embodiment is as mentioned below。
501, carry out in the process of cellular communication at UE and the two UE, base station receives the second measurement message that message is measured in the first of a UE transmission, the 2nd UE sends, and first measures message includes: the signal quality of the 2nd UE；Second measures message includes: the signal quality of a UE。
For example, the signal quality at this place can be transmitting power, receive the information such as power。
502, base station is if it is determined that the signal quality of a UE in cellular communication and the signal quality of the 2nd UE reach the threshold value preset, then send the configuration D2D configuration message communicated respectively to a UE and described 2nd UE, this configuration message is used for carrying out D2D communication connection by UE and the two UE。
503, base station is after UE and the two UE switches to D2D communication from cellular communication, retains the UE service connection context communicated with base station, the service connection context that the 2nd UE communicates with base station。
Generally, base station retains the first security parameter in the UE service connection context communicated with base station, and retains the second security parameter in the 2nd UE service connection context communicated with base station。
For example, the first security parameter that reservation the oneth UE in base station communicates with base station includes: the first security algorithm, the first key and the first carrying；
Base station retains the 2nd UE the second security parameter communicated with base station and includes: the second security algorithm, the second key and the second carrying。
Preferably, the first security parameter also includes: the COUNT value of UE counting in cellular communications；Second security parameter also includes: the COUNT value of the 2nd UE counting in cellular communications。
504, after UE and the two UE switches to cellular communication from D2D communication, described service connection context and a UE, the 2nd UE is used to carry out the transmission of business datum, and
Oneth UE and the two UE retains the security parameter used in D2D communication respectively, so that using the security parameter of the D2D retained communication to carry out the transmission of business datum when UE and the two UE switches to D2D communication from cellular communication。
Specifically, UE and the two UE retains the security parameter used in D2D communication respectively, including: the carrying that the key that the security algorithm of D2D communication, D2D communicate communicates with D2D。
Preferably, UE and the two UE retains the security parameter used in D2D communication respectively, also includes: the COUNT value of the counting of D2D communication。
Alternatively, in Another Application scene, above-mentioned method for processing business may also include unshowned step 505 and step 506 in below figure 5。
505, when UE and the two UE switches to D2D communication from cellular communication, base station sends the message including a UE and the two UE entrance D2D communication to core net。
This step is used for illustrating, to core net, base station informs that two UE enter D2D, it is possible to deduction and exemption charge etc.。
506, when UE and the two UE switches to cellular communication from D2D communication, base station sends the message including a UE and the two UE entrance cellular communication to core net。
Needing further exist for illustrating, if in D2D communicates, the service ending between a UE and the 2nd UE, UE and the two UE no longer retains D2D and connects context；
Correspondingly, base station also needs to receive a UE and/or the 2nd UE by the advertisement message of service ending between a UE and the 2nd UE of a UE and/or the 2nd UE service connection context retained transmission；
Now, base station retain according to advertisement message release with the content such as a UE, service connection context respectively corresponding for the 2nd UE, the first security parameter enumerated above, the second security parameter。It is to say, base station is released to UE and the two UE service connection context retained according to advertisement message。
Certainly, in cellular communications, if the service ending between a UE and the 2nd UE, and the oneth UE and the two UE all remain with D2D connect context, correspondingly, the UE of transmitting terminal to base station, the UE of receiving terminal all send the message of service ending so that the corresponding service connection context of the corresponding service connection context of base station release, receiving terminal release, D2D connect context etc.。
For example, the UE of transmitting terminal sends the message of service ending by corresponding service connection context to base station；The UE of transmitting terminal connects context by D2D and sends the message of service ending to the UE of receiving terminal。
By above-described embodiment it can be seen that the method for processing business of the present embodiment, can effectively realize can switching between D2D and cellular communication alternately of the business datum between two UE, and business procedure is not disrupted。
Embodiment four
601, carrying out in cellular communication process at UE and another UE, UE sends the measurement report relevant to D2D to base station。
602, UE reception base station in response carries out the D2D configuration message communicated in UE and another UE that described measurement report sends。
Configuration message in the present embodiment includes: set up the control information required for the described D2D communication connection of transport service data and security parameter。
For example, control information includes: the up-downgoing in instruction D2D communication；Or base station instruction UE or another UE is main UE and from UE, it is determined that from main UE to from the data of UE being uplink/downlink D2D communication；Or base station instruction UE or another UE is virtual base station, and it is downlink data that virtual base station is sent to the data of another UE, and it is upstream data that another UE is sent to the data of virtual base station/main UE。
Certainly, in actual applications, above-mentioned control information also can determine up-downgoing according to certain rule, for instance the data of receiving end of making a start be D2D communication in up, otherwise for D2D communication in descending。
Security parameter in above-mentioned configuration message includes one or more in following items: the key of D2D communication, produce the COUNT value of counting of the parameter of key of D2D communication, the security algorithm of D2D communication, the carrying of D2D communication, the up-downgoing instruction of D2D communication, D2D communication。
It should be noted that the carrying that the carrying of the communication of the D2D in the security parameter of configuration message uses in cellular communications with UE is consistent, or, the carrying of the D2D communication in the security parameter of configuration message is consistent with the carrying that another UE uses in cellular communications。
603, after UE carries out D2D communication connection according to configuration message and another UE, retain the service connection context set up when UE carries out cellular communication with base station, and in D2D communicates transport service data, and
After UE switches to cellular communication from D2D communication, service connection context and base station is used to carry out the transmission of business datum。
Further, after UE switches to cellular communication again from D2D communication, above-mentioned method for processing business also includes unshowned step 604 in below figure 6。
604, UE retains the D2D used in D2D communication and connects context；After UE switches to D2D communication again from cellular communication, use D2D to connect context and carry out the transmission of described business datum。
Certainly, UE retains the D2D connection context used in D2D communication and includes security parameter, the security parameter of D2D communication。
In the present embodiment, the security parameter of D2D communication includes: the carrying that the key that the security algorithm of D2D communication, D2D communicate communicates with D2D；Or, the security parameter of D2D communication includes: the COUNT value of the counting that the carrying that the security algorithm of D2D communication, the key of D2D communication, D2D communicate communicates with D2D。
Preferably, above-mentioned method for processing business, also include not shown step 605。
605, after UE switches to cellular communication again from D2D communication, UE retains the D2D used in D2D communication and connects context；And the service connection context that UE passes through to retain sends communication information to base station, communication information carries described UE and retains the information of described D2D connection context；
After UE switches to D2D communication again from cellular communication, use D2D to connect context according to base station instruction and carry out the transmission of described business datum。
Further, if in D2D communicates, service ending between UE and another UE, the service connection context that then UE passes through to retain sends the advertisement message of the service ending between UE and another UE to base station, described advertisement message is that described base station is for discharging the message of the service connection context of corresponding reservation, the service connection context retained to notify base station to discharge。
Certainly, in cellular communications, if the service ending between a UE and the 2nd UE, and the oneth UE and the two UE all remain with D2D connect context, correspondingly, the UE of transmitting terminal also needs the D2D passing through to retain to connect context and sends the message of service ending to the UE of receiving terminal, so that the D2D connection context etc. that receiving terminal UE release is corresponding。
By above-described embodiment it can be seen that the method for processing business of the present embodiment can effectively realize can switching between D2D and cellular communication alternately of the business datum between two UE, and business procedure is not disrupted。
Embodiment five
According to a further aspect in the invention, the present invention also provides for a kind of base station, as it is shown in fig. 7, base station includes: receives unit 71, determine unit 72, transmitting element 73, stick unit 74 and data transmission unit 75；
Wherein, unit 71 is received for receiving UE and the two UE measurement report relevant to D2D sent respectively；Determine unit 72 is for whether UE and the two UE determining in cellular communication according to measurement report reaches D2D communication condition；Transmitting element 73 for determining that unit 72 determines that UE and the two UE reaches D2D communication condition, then sends the configuration message of configuration D2D communication respectively to UE and the two UE, and configuration message is used for carrying out D2D communication connection by UE and the two UE；Stick unit 74 is for, after UE and the two UE switches to D2D communication from cellular communication, retaining the service connection context set up respectively when UE and the two UE carries out cellular communication with base station；Data transmission unit 75 is for, after switching to cellular communication at UE and the two UE from D2D communication, using described service connection context and a described UE and described 2nd UE to carry out the transmission of business datum。
In the present embodiment, cell 72 can be hardware processor really。
Further, the stick unit 74 first security parameter specifically for retaining when a UE communicates with base station in service connection context, and the second security parameter retained when the 2nd UE communicates with described base station in service connection context。
Above-mentioned configuration information includes: set up the control information required for the described D2D communication connection of transport service data and security parameter。
For example, control information comprises the steps that the up-downgoing in instruction D2D communication；Or, one of them of instruction the oneth UE and the two UE is main UE, another is for from UE, it is determined that from main UE to being up D2D communication from the data of UE；Or, one of them of instruction the oneth UE and the two UE is main UE, another is for from UE, it is determined that from main UE to being descending D2D communication from the data of UE；Or, one of them of instruction the oneth UE and the two UE is virtual base station, in order to determine the up-downgoing in D2D communication。
Security parameter includes one or more in following items: the key of D2D communication, produce the COUNT value of counting of the parameter of key of D2D communication, the security algorithm of D2D communication, the carrying of D2D communication, the up-downgoing instruction of D2D communication, D2D communication。
Especially, the carrying of D2D communication is consistent with the first carrying that a UE uses in cellular communications, or, the carrying of D2D communication is consistent with the second carrying that described 2nd UE uses in cellular communications。
Certainly, aforesaid stick unit 74 is additionally operable to after UE and the two UE switches to cellular communication from D2D communication, if a UE, the 2nd UE retain UE and the two UE respectively, the D2D used in D2D communicates connects context,
Correspondingly, receive unit 71 and be additionally operable to receive the UE communication information sent to base station by the service connection context of corresponding reservation, communication information carries a described UE and retains the information of described D2D connection context；
And/or
Receive the 2nd UE communication information sent to base station by the service connection context of corresponding reservation, communication information carries the 2nd UE and retains the information of described D2D connection context；
When UE and the two UE switches to D2D communication from cellular communication again, instruction the oneth UE and described 2nd UE uses described D2D connection context to carry out the transmission of described business datum。
Include it should be noted that D2D connects context: the security parameter of D2D communication；For example, the security parameter of D2D communication, including: the carrying that the key that the security algorithm of D2D communication, D2D communicate communicates with D2D；Or, the COUNT value of the counting that the carrying that the security algorithm of D2D communication, the key of D2D communication, D2D communicate communicates with D2D。
Further, base station may also include that releasing unit, for receiving a UE and/or the 2nd UE by the advertisement message of service ending between a UE and the 2nd UE of a UE and/or the 2nd UE service connection context retained transmission, and the service connection context with a UE and the 2nd UE reservation retained according to the release of described advertisement message。
By above-described embodiment it can be seen that can the switching between D2D and cellular communication alternately of the base station of the present embodiment business datum that is capable of between two UE, and business procedure is not disrupted。
Embodiment six
According to a further aspect in the invention, the present invention also provides for a kind of subscriber equipment, and as shown in Figure 8, the subscriber equipment of the present embodiment includes: transmitting element 81, reception unit 82 and stick unit 83；
Wherein, transmitting element 81, for carrying out in cellular communication process at UE and another UE, sends the measurement report relevant to D2D to base station；Receive unit 82 and carry out the D2D configuration message communicated for receiving base station in response in UE and another UE that measurement report sends；Stick unit 83 for after carrying out D2D communication connection according to configuration message with another UE, retains the service connection context set up when UE carries out cellular communication with base station, and in D2D communicates transport service data；And after UE switches to cellular communication from D2D communication, use service connection context and base station to carry out the transmission of business datum。
Stick unit 83 in the present embodiment can be a hardware radio receiving-transmitting unit (Transceiver)。
Preferably, above-mentioned stick unit, it is additionally operable to after UE switches to cellular communication again from D2D communication, retains the D2D used in D2D communication and connect context；
Correspondingly, the service connection context that transmitting element 81 is additionally operable to pass through to retain sends communication information to base station, carries UE and retain the information of described D2D connection context in communication information；After UE switches to D2D communication again from cellular communication, use D2D to connect context according to base station instruction and carry out the transmission of described business datum。
For example, above-mentioned D2D connects context and comprises the steps that the security parameter in D2D communication。
Described subscriber equipment may also include that notification unit, the service connection context that the service connection context for passing through to retain retains to the advertisement message of the service ending between described base station transmission described UE and another UE described to notify described base station to discharge。
By above-described embodiment it can be seen that can the switching between D2D and cellular communication alternately of the subscriber equipment of the present embodiment business datum that is capable of between two UE, and business procedure is not disrupted。
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can be completed by the hardware that programmed instruction is relevant。Aforesaid program can be stored in a computer read/write memory medium。This program upon execution, performs to include the step of above-mentioned each embodiment of the method；And aforesaid storage medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CDs。
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme。
Claims (24)
1. a method for processing business, it is characterised in that including:
Receive first user equipment UE and the 2nd UE measurement report relevant to end-to-end D2D sent respectively；
Determine that the described UE in cellular communication and described 2nd UE reaches D2D communication condition according to described measurement report, then send the configuration D2D configuration message communicated respectively to a described UE and described 2nd UE, described configuration message is used for carrying out D2D communication connection by a described UE and described 2nd UE；And
Switch to from described cellular communication after D2D communicates at a described UE and described 2nd UE, retain the service connection context set up with base station respectively when described UE and the two UE carries out cellular communication；
After a described UE and described 2nd UE communicates from described D2D and to switch to cellular communication, described service connection context and a described UE and described 2nd UE is used to carry out the transmission of business datum；
After a described UE and described 2nd UE communicates from described D2D and to switch to cellular communication, if a UE, the 2nd UE retain a described UE and described 2nd UE respectively, the D2D used in D2D communicates is connected context, then described method also includes:
Receive the described UE communication information sent to described base station by the UE service connection context retained, described communication information carries a described UE and retains the information of described D2D connection context；
And/or
Receive the described 2nd UE communication information sent to described base station by the 2nd UE service connection context retained, described communication information carries described 2nd UE and retains the information of described D2D connection context；
A described UE and described 2nd UE again from described cellular communication switch to described D2D communicate time, indicate a described UE and described 2nd UE to use described UE and the two UE D2D retained to connect context and carry out the transmission of described business datum。
2. method according to claim 1, it is characterised in that described configuration message includes: set up the control information required for the described D2D communication connection of transport service data and security parameter。
3. method according to claim 2, it is characterised in that described control information includes:
Up-downgoing in instruction D2D communication；
Or
Indicating one of them of described UE and the two UE is main UE, another is for from UE, it is determined that from main UE to being up D2D communication from the data of UE；
Or
Indicating one of them of described UE and the two UE is main UE, another is for from UE, it is determined that from main UE to being descending D2D communication from the data of UE；
Or
Indicate one of them of described UE and the two UE for virtual base station, in order to determine the up-downgoing in D2D communication。
4. method according to claim 2, it is characterised in that described security parameter includes one or more in following project:
The key of D2D communication, produce the COUNT value of counting of the parameter of key of D2D communication, the security algorithm of D2D communication, the carrying of D2D communication, the up-downgoing instruction of D2D communication, D2D communication。
5. method according to claim 4, it is characterised in that the carrying of described D2D communication is consistent with the first carrying that a described UE uses in cellular communications, or
The carrying of described D2D communication is consistent with the second carrying that described 2nd UE uses in cellular communications。
6. method according to claim 1, it is characterised in that the service connection context set up with base station respectively when described UE and the two UE of described reservation carries out cellular communication, including:
Retain the first security parameter in service connection context when a described UE communicates with base station, and
Retain the second security parameter in service connection context when described 2nd UE communicates with base station。
7. method according to claim 6, it is characterised in that described first security parameter includes a: UE the first security algorithm in cellular communications, the first key and the first carrying；
Described second security parameter includes: the 2nd UE the second security algorithm in cellular communications, the second key and the second carrying。
8. method according to claim 7, it is characterised in that described first security parameter also includes: the COUNT value of UE counting in cellular communications；
Described second security parameter also includes: the COUNT value of the 2nd UE counting in cellular communications。
9. method according to claim 1, it is characterised in that described D2D connects context, including: the security parameter of D2D communication。
10. method according to claim 9, it is characterised in that the security parameter of described D2D communication, including:
The carrying that the key that the security algorithm of D2D communication, D2D communicate communicates with D2D；
Or
The COUNT value of the counting that the carrying that the security algorithm of D2D communication, the key of D2D communication, D2D communicate communicates with D2D。
11. method according to claim 1, it is characterised in that also include:
Receive a described UE and/or the 2nd UE by the advertisement message of service ending between a described UE and the 2nd UE of a UE and/or the 2nd UE service connection context retained transmission, be released to UE and the two UE service connection context retained according to described advertisement message。
12. a method for processing business, it is characterised in that including:
Carrying out in cellular communication process at user equipment (UE) with another UE, described UE sends the measurement report relevant to end-to-end D2D to base station；
Described UE receives described base station in response and carries out the D2D configuration message communicated in described UE and another UE that described measurement report sends；
After described UE carries out D2D communication connection according to described configuration message and another UE described, retain the service connection context set up when described UE carries out cellular communication with described base station, and in described D2D communicates transport service data；
After described UE switches to cellular communication from described D2D communication, described service connection context and base station is used to carry out the transmission of business datum；
After described UE switches to cellular communication again from D2D communication, also include: described UE retains the D2D used in described D2D communication and connects context；And
The service connection context that described UE passes through to retain sends communication information to described base station, carries described UE and retain the information of described D2D connection context in described communication information；
After described UE switches to described D2D communication again from cellular communication, use described D2D to connect context according to base station instruction and carry out the transmission of described business datum。
13. method according to claim 12, it is characterised in that described configuration message includes: set up the control information required for the described D2D communication connection of transport service data and security parameter。
14. method according to claim 13, it is characterised in that described control information includes:
Up-downgoing in instruction D2D communication；
Or
Indicating one of them of described UE and another UE is main UE, another is for from UE, it is determined that from main UE to being up D2D communication from the data of UE；
Or
Indicating one of them of described UE and another UE is main UE, another is for from UE, it is determined that from main UE to being descending D2D communication from the data of UE；
Or
One of them indicating described UE and another UE is virtual base station, in order to determine the up-downgoing in D2D communication。
15. method according to claim 13, it is characterised in that described security parameter includes one or more in following project:
The key of D2D communication, produce the COUNT value of counting of the parameter of key of D2D communication, the security algorithm of D2D communication, the carrying of D2D communication, the up-downgoing instruction of D2D communication, D2D communication。
16. method according to claim 15, it is characterised in that the carrying of described D2D communication is consistent with the carrying that described UE uses in cellular communications, or
The carrying of described D2D communication is consistent with the carrying that another UE described uses in cellular communications。
17. method according to claim 12, it is characterised in that described D2D connects context, including: the security parameter in D2D communication。
18. method according to claim 17, it is characterised in that the security parameter in described D2D communication includes:
The carrying that the key that the security algorithm of D2D communication, D2D communicate communicates with D2D；
Or
The COUNT value of the counting that the carrying that the security algorithm of D2D communication, the key of D2D communication, D2D communicate communicates with D2D。
19. method according to claim 12, it is characterised in that also include:
The service connection context passing through to retain sends the advertisement message of the service ending between described UE and another UE described to described base station, to notify the service connection context that the release of described base station retains。
20. a base station, it is characterised in that including:
Receive unit, for receiving first user equipment UE and the 2nd UE measurement report relevant to end-to-end D2D sent respectively；
Determine unit, for determining whether the described UE in cellular communication and described 2nd UE reaches D2D communication condition according to described measurement report；
Transmitting element, for determining that unit determines that a described UE and described 2nd UE reaches D2D communication condition described, then send the configuration D2D configuration message communicated respectively to a described UE and described 2nd UE, described configuration message is used for carrying out D2D communication connection by a described UE and described 2nd UE；
Stick unit, for switching to after D2D communicate from described cellular communication at a described UE and described 2nd UE, retain when described UE and the two UE carries out cellular communication respectively with the service connection context of base station foundation；
Data transmission unit, after communicate from described D2D to switch to cellular communication at a described UE and described 2nd UE, uses described service connection context and a described UE and described 2nd UE to carry out the transmission of business datum；
Described stick unit is additionally operable to
After a described UE and described 2nd UE communicates from described D2D and to switch to cellular communication, if a UE, the 2nd UE retain a described UE and described 2nd UE respectively, the D2D used in D2D communicates is connected context,
Then described reception unit, is additionally operable to
Receive the described UE communication information sent to described base station by the UE service connection context retained, described communication information carries a described UE and retains the information of described D2D connection context；
And/or
Receive the described 2nd UE communication information sent to described base station by the 2nd UE service connection context retained, described communication information carries described 2nd UE and retains the information of described D2D connection context；
A described UE and described 2nd UE again from described cellular communication switch to described D2D communicate time, indicate a described UE and described 2nd UE to use described UE and the two UE D2D retained to connect context and carry out the transmission of described business datum。
21. base station according to claim 20, it is characterised in that described configuration information includes: set up the control information required for the described D2D communication connection of transport service data and security parameter。
22. base station according to claim 20, it is characterised in that also include:
Releasing unit, for receiving a described UE and/or the 2nd UE by the advertisement message of service ending between a described UE and the 2nd UE of a UE and/or the 2nd UE service connection context retained transmission, and the service connection context with a UE and the 2nd UE reservation retained according to the release of described advertisement message。
23. a subscriber equipment, it is characterised in that including:
Transmitting element, for carrying out in cellular communication process at user equipment (UE) with another UE, sends the measurement report relevant to end-to-end D2D to base station；
Receive unit, carry out the D2D configuration message communicated for receiving described base station in response in described UE and another UE that described measurement report sends；
Stick unit, for after carrying out D2D communication connection according to described configuration message and another UE described, retains the service connection context set up when described UE carries out cellular communication with described base station, and in described D2D communicates transport service data；And after described UE switches to cellular communication from described D2D communication, use described service connection context and base station to carry out the transmission of business datum；
Described stick unit, is additionally operable to
After described UE switches to cellular communication again from D2D communication, retain the D2D used in described D2D communication and connect context；
Correspondingly, described transmitting element, it is additionally operable to
The service connection context passing through to retain sends communication information to described base station, carries described UE and retain the information of described D2D connection context in described communication information；
After described UE switches to described D2D communication again from cellular communication, use described D2D to connect context according to base station instruction and carry out the transmission of described business datum。
24. subscriber equipment according to claim 23, it is characterised in that also include:
Notification unit, the service connection context being used for passing through to retain is to the advertisement message of the service ending between described base station transmission described UE and another UE described, to notify the service connection context that the release of described base station retains。
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| US9357580B2 (en) * | 2013-02-07 | 2016-05-31 | Industrial Technology Research Institute | Method for switching communication connection mode, communication system, base station, transmitter and receiver |
| CN105191466A (en) * | 2014-03-21 | 2015-12-23 | 索尼株式会社 | Efficient contention based decentralized procedure for device to device communication |
| CN104935415B (en) * | 2014-03-21 | 2020-10-13 | 北京三星通信技术研究有限公司 | HARQ-ACK transmission method and user equipment |
| CN105407504A (en) * | 2014-07-18 | 2016-03-16 | 夏普株式会社 | D2D communication terminal and communication method therefor |
| CN108770065B (en) | 2014-07-22 | 2021-10-26 | 华为技术有限公司 | Method, equipment and system for controlling air interface resources |
| CN105898876A (en) * | 2014-11-07 | 2016-08-24 | 南京大学 | D2D communication establishing and power distribution scheme under cellular communication system |
| CN106162598B (en) * | 2015-04-10 | 2019-09-17 | 电信科学技术研究院 | A kind of user equipment is to the communication means and device under network relay scene |
| CN107105464B (en) * | 2016-02-22 | 2019-12-17 | 中兴通讯股份有限公司 | Network switching method and device and user equipment |
| WO2017143530A1 (en) * | 2016-02-24 | 2017-08-31 | 富士通株式会社 | Interface resource selection apparatus and method, and communication system |
| BR112019006258A2 (en) * | 2016-09-30 | 2019-06-25 | Huawei Tech Co Ltd | transfer method and system, and apparatus |
| WO2018113086A1 (en) * | 2016-12-24 | 2018-06-28 | 华为技术有限公司 | Wireless connection switching method and terminal |
| CN108566686B (en) * | 2018-03-29 | 2020-07-21 | 维沃移动通信有限公司 | Method, device and system for establishing D2D connection |
| CN114071589B (en) * | 2020-07-30 | 2023-04-25 | 展讯通信（上海）有限公司 | Link switching indication method, device, apparatus and storage medium |
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