CN103716786A - Method for direct communication among wireless terminals, and wireless terminal - Google Patents
Method for direct communication among wireless terminals, and wireless terminal Download PDFInfo
- Publication number
- CN103716786A CN103716786A CN201210379824.5A CN201210379824A CN103716786A CN 103716786 A CN103716786 A CN 103716786A CN 201210379824 A CN201210379824 A CN 201210379824A CN 103716786 A CN103716786 A CN 103716786A
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- terminal
- wireless terminal
- receiving
- base station
- key
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
- H04W12/037—Protecting confidentiality, e.g. by encryption of the control plane, e.g. signalling traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method for direct communication among wireless terminals, and a wireless terminal. The method comprises the following steps: a sending end directly sends or sends an encrypted direct communication service request to a receiving end through a base station; and the receiving end receiving a secret key sent by the base station and using the secret key to encrypt the received direct communication service request. According to the invention, the secret key is sent to a wireless terminal through the base station, so that it is possible for service providers to control the direct communication services among the terminals, and technical development is promoted; secondly, the scheme provided by the invention is quite simple and feasible, during realization, user terminals according with a conventional wireless protocol can be repeatedly used and a conventional wireless network can be utilized to the greatest extent, and the service providers do not have to increase network reconstruction cost.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to method and the wireless terminal of direct communication between a kind of wireless terminal.
Background technology
Direct communication between wireless terminal is a kind of absorbing communication mode, be different from traditional radio communication, while adopting direct communication technology, the wireless signal of transmitting terminal (wireless terminal) directly arrives receiving terminal (another wireless terminal), and does not need the route through core network.It seems at present, the direct communication between wireless terminal has two kinds of application prospects below at least:
1) for public safety field, when there is the natural calamities such as earthquake, tsunami, from the covering of wireless base station, do not had, if at this moment can directly communicate between wireless terminal and wireless terminal, mean the life that just can save more preciousnesses.
2) for commercial field, along with the data traffic in legacy network is exponential increase, core network can't bear load, if can allow between wireless terminal direct communication just can large large shunt the data traffic in the middle of network originally, the whole volume of network is improved.
Direct communication between following wireless terminal also may have more wide prospect, has just repeated no more here.
But the appearance Ye Gei operator of direct communication technology has gone out a difficult problem, because carry out under the control of traditional wireless communication Dou Shi operator, operator collects communication expense and is used for obtaining income simultaneously.In existing techniques in realizing, after wireless terminal initiating business request, core network gives corresponding gateway unit (such as MMS is routed to MMS center this service request route, web page browsing business is routed to WAP (wireless application protocol) (WAP) gateway etc.), gateway is responsible for the service request of this terminal to carry out authentication and calculated flow rate, then data is sent to charging center and calculates and produce bill.And for direct communication technology, the generation of the uncontrollable business of operator and carrying out, means and collects less than expense.Thus, operator will produce resentment, the marketization holding it back to this technology.
Summary of the invention
The embodiment of the present invention provides method and the wireless terminal of direct communication between a kind of wireless terminal, with solve between existing wireless terminal, adopt direct communication and cause cannot charging etc. problem.
The embodiment of the present invention provides the method for direct communication between a kind of wireless terminal, and the method comprises:
Transmitting terminal directly or by base station sends the express traffic request after encrypting to receiving terminal;
Described receiving terminal receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving.
Preferably, described transmitting terminal directly or by base station sends the express traffic request after encrypting to receiving terminal, comprising:
Described transmitting terminal receives the communication key that base station sends, and request is encrypted to express traffic to use described communication key, and sends the express traffic request after described encryption to described receiving terminal;
Described receiving terminal receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving, and comprising:
Described receiving terminal receives the described communication key that described base station sends, and uses described communication key to be decrypted the express traffic request receiving.
Preferably, described transmitting terminal directly or by base station sends the express traffic request after encrypting to receiving terminal, comprising:
Described transmitting terminal sends express traffic request to described base station, the described express traffic request of accepting is determined according to the type of described transmitting terminal in described base station, and select a key to be encrypted described service request, then to described receiving terminal, send the express traffic request after described encryption;
Described receiving terminal receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving, and comprising:
Described receiving terminal receives the decruption key that described base station sends, and uses described decruption key to be decrypted the express traffic request receiving.
Preferably, described transmitting terminal is category-A or category-B wireless terminal, and described receiving terminal is category-A or C class wireless terminal.
Preferably, described category-A terminal, for receiving the data of other wireless terminal, can be received by other wireless terminal the wireless terminal of data again; Described category-B terminal is to be received by other wireless terminal the wireless terminal of data; Described C Terminal Type is for receiving the wireless terminal of the data of other wireless terminal.
The embodiment of the present invention also provides a kind of wireless terminal, and this wireless terminal comprises:
Process sending module, while being transmitting terminal for this wireless terminal, directly or by base station to receiving terminal, send the express traffic request after encrypting; And
Receiving processing module,, receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving during as receiving terminal for this wireless terminal.
Preferably, described processing sending module, specifically for: receive the communication key that base station sends, request is encrypted to express traffic to use described communication key, and sends the express traffic request after described encryption to described receiving terminal;
Described receiving processing module, specifically for: receive the described communication key that described base station sends, and use described communication key to be decrypted the express traffic request receiving.
Preferably, described processing sending module, specifically for: to described base station, send express traffic request, the described express traffic request of accepting is determined according to the type of described transmitting terminal in described base station, and select a key to be encrypted described service request, then to described receiving terminal, send the express traffic request after described encryption; Described receiving processing module, specifically for: receive the decruption key that described base station sends, and use described decruption key to be decrypted the express traffic request receiving.
Preferably, described transmitting terminal is category-A or category-B wireless terminal, and described receiving terminal is category-A or C class wireless terminal.
Preferably, described category-A terminal, for receiving the data of other wireless terminal, can be received by other wireless terminal the wireless terminal of data again; Described category-B terminal is to be received by other wireless terminal the wireless terminal of data; Described C Terminal Type is for receiving the wireless terminal of the data of other wireless terminal.
Employing the invention has the beneficial effects as follows apparent, first between Ta Wei operator control terminal direct communication business possibility is provided, promoted the development of technology; Secondly, the method is also very simple, feasible, can reuse and meet the user terminal of existing wireless protocols and maximally utilise prior wireless network when realizing, and operator does not need to increase a lot of network reconstructed costs yet.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the signal transmitting and receiving embodiment mono-of direct communication between wireless terminal of the present invention;
Fig. 2 is the schematic diagram of the signal transmitting and receiving embodiment bis-of direct communication between wireless terminal of the present invention;
Fig. 3 is the flow chart of the embodiment of the method that directly communicates between the wireless terminal in the present invention embodiment illustrated in fig. 1;
Fig. 4 is the flow chart of the embodiment of the method that directly communicates between the wireless terminal in the present invention embodiment illustrated in fig. 2 two;
Fig. 5 is the structural representation of wireless terminal embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, the embodiment in the application and the feature in embodiment be combination in any mutually.
The embodiment of the present invention provides the method for direct communication between a kind of wireless terminal, and the method comprises:
Step 101, transmitting terminal directly or by base station send the express traffic request after encrypting to receiving terminal;
Step 102, described receiving terminal receive the key that base station sends, and use described key to be decrypted the express traffic request receiving.
This embodiment comprises between two wireless terminals as shown in Figure 1 without any need for the assistance of network element and the situation of direct communication, also comprises as shown in Figure 2 between two wireless terminals by home base stations and the situation of direct communication.But no matter be which kind of mode, its feature is all the transmission not needing through core network.This is also the maximum feature of direct communication between wireless terminal.According to the implementation of above-mentioned two kinds of direct communications, corresponding specific embodiment is described respectively below.
Embodiment mono-
As shown in Figure 3, be the flow chart of the embodiment of the method that directly communicates between the wireless terminal in the present invention embodiment illustrated in fig. 1, the method comprises:
Step S201, operator send the key for direct communication by existing wireless network to each wireless terminal in community;
Operator is by base station only to allowing to use the wireless terminal of direct communication business to send key, and particularly, operator is divided into A by wireless terminal, B, and C, D tetra-classes:
For category-A wireless terminal, operator distributes an independent key to this wireless terminal, and this key is sent to other wireless terminal in this wireless terminal and community;
For category-B wireless terminal, operator distributes an independent key to this wireless terminal, and this key is sent to this wireless terminal, and in Dan Bujiang community, the key of other wireless terminal sends to this wireless terminal;
For C class wireless terminal, operator is not the independent key of this terminal distribution, and in Dan Jiang community, the key of other wireless terminal sends to this wireless terminal;
For D class wireless terminal, operator is neither this terminal distribution key, also to it, does not send any key.
Because D Terminal Type is without any key, so this Terminal Type can not be realized direct communication between terminals business.
Operator divides that four class wireless terminals normally decide according to the set meal type under terminal use, for example, some users that do not buy express traffic set meal are just assigned to D class, some set meal users that can only enjoy part express traffic are divided into category-B, or C class, the set meal user who enjoys whole business is category-A user.
In Project Realization, operator normally sends to wireless terminal by base station by above-mentioned key, normally wireless terminal is placed in to connection status (RRC_connected), then by dedicated signaling, sends key to wireless terminal;
This wireless terminal X is transmitting terminal, and this wireless terminal X can only be aforesaid category-A or category-B wireless terminal;
This wireless terminal Y is receiving terminal, and this wireless terminal Y can only be aforesaid category-A or C Terminal Type.
According to the aforementioned different all cipher key combinations of type wireless terminal, can there is following possibility:
1) for category-A terminal, because its key is by known to all terminals in network, this wireless terminal can receive the data of other wireless terminal, and other wireless terminal also can receive the data of this wireless terminal simultaneously;
2) for category-B terminal, it only knows the key of distributing to oneself, and this wireless terminal can be found by other wireless terminal, but this wireless terminal cannot be found other wireless terminal;
3) for C Terminal Type, itself is not assigned with key, but it knows the key of other wireless terminal in community, so this wireless terminal can find other wireless terminal, but other wireless terminal cannot be found this wireless terminal.
In sum, the express traffic that operator utilizes the key distribute to wireless terminal can control this wireless terminal realizes.
Embodiment bis-
As shown in Figure 4, it is the flow chart of the embodiment of the method that directly communicates between the wireless terminal in the present invention embodiment illustrated in fig. 2 two, scene shown in the present embodiment corresponding diagram 2, in this scene, the wireless terminal of the wireless terminal of direct communication and direct communication in embodiment mono-is compared, and difference is: terminal room transmission data need to be through the relaying of home base stations.Key can be placed in home base stations, and according to wireless terminal dissimilar, is encrypted operation by home base stations.Concrete step is as follows:
Step S301, wireless base station send to each wireless terminal according to the type of wireless terminal by the key of corresponding reception data, similar with embodiment mono-, and the type of wireless terminal comprises following four kinds:
1) for category-A terminal, this wireless terminal can receive the data of other wireless terminal, and other wireless terminal also can receive the data of this wireless terminal simultaneously;
2) for category-B terminal, this wireless terminal can be found by other wireless terminal, but this wireless terminal cannot be found other wireless terminal;
3) for C Terminal Type, this wireless terminal can be found other wireless terminal, but other wireless terminal cannot be found this wireless terminal;
4) for D Terminal Type, this wireless terminal can not be found other wireless terminal, and other wireless terminal also cannot be found this wireless terminal;
Different from embodiment mono-, wireless base station only sends to the key of data decryption the terminal of category-A and C class, and for category-A and C class wireless terminal, wireless base station sends to this wireless terminal by the key of the data that other wireless terminal sends in deciphering community;
For category-B and D class wireless terminal, wireless base station does not send any key to it;
This wireless terminal X is transmitting terminal;
Whether step 303, wireless base station accept aforementioned service request according to the type decided of wireless terminal, and select a key to be encrypted business datum;
For category-A and category-B wireless terminal, the express traffic request of its initiation is accepted in wireless base station;
For C class and D class wireless terminal, the express traffic request of its initiation is not accepted in wireless base station;
For category-A and category-B wireless terminal, wireless base station configures the key of an independent enciphered data in advance for it, and with this key, the data of its transmission is encrypted, and the data after encrypting are sent to whole community;
Meanwhile, wireless terminal Y intercepts in community the express traffic data from other wireless terminal, and according to the key known to self, the data that receive is decrypted.
This wireless terminal Y is receiving terminal, according to the description of step S301, only has the key of other wireless terminal in category-A and C class wireless terminal Cai You community, therefore only has category-A and C class wireless terminal can decipher received data.
And for category-A terminal, can also send data, its data that send can be deciphered by other wireless terminal in community after wireless base station is encrypted.
In above-described embodiment, by base station, be that wireless terminal sends key, the possibility that provides for direct communication business between operator's control terminal, has promoted the development of technology; Secondly, the method is also very simple, feasible, can reuse and meet the user terminal of existing wireless protocols and maximally utilise prior wireless network when realizing, and operator does not need to increase a lot of network reconstructed costs yet.
As shown in Figure 5, be the structural representation of wireless terminal embodiment of the present invention, this wireless terminal comprises processes sending module 51 and receiving processing module 52, wherein:
Process sending module, while being transmitting terminal for this wireless terminal, directly or by base station to receiving terminal, send the express traffic request after encrypting;
Receiving processing module,, receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving during as receiving terminal for this wireless terminal.
Wherein, described processing sending module, specifically for: receive the communication key that base station sends, request is encrypted to express traffic to use described communication key, and sends the express traffic request after described encryption to described receiving terminal; Described receiving processing module, specifically for: receive the described communication key that described base station sends, and use described communication key to be decrypted the express traffic request receiving.This kind of situation is corresponding with the embodiment of the method that Fig. 3 describes.
Similarly, described processing sending module, specifically for: to described base station, send express traffic request, the described express traffic request of accepting is determined according to the type of described transmitting terminal in described base station, and select a key to be encrypted described service request, then to described receiving terminal, send the express traffic request after described encryption; Described receiving processing module, specifically for: receive the decruption key that described base station sends, and use described decruption key to be decrypted the express traffic request receiving.This kind of situation is corresponding with the embodiment of the method that Fig. 4 describes.
Wherein, described transmitting terminal is category-A or category-B wireless terminal, and described receiving terminal is category-A or C class wireless terminal.Described category-A terminal, for receiving the data of other wireless terminal, can be received by other wireless terminal the wireless terminal of data again; Described category-B terminal is to be received by other wireless terminal the wireless terminal of data; Described C Terminal Type is for receiving the wireless terminal of the data of other wireless terminal.
Above-mentioned wireless terminal, can be under the control of network side and another wireless terminal direct communication.
One of ordinary skill in the art will appreciate that all or part of step in said method can come instruction related hardware to complete by program, said procedure can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment, the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can modify or be equal to replacement technical scheme of the present invention, and do not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. a method for direct communication between wireless terminal, is characterized in that, the method comprises:
Transmitting terminal directly or by base station sends the express traffic request after encrypting to receiving terminal;
Described receiving terminal receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving.
2. method according to claim 1, is characterized in that:
Described transmitting terminal directly or by base station sends the express traffic request after encrypting to receiving terminal, comprising:
Described transmitting terminal receives the communication key that base station sends, and request is encrypted to express traffic to use described communication key, and sends the express traffic request after described encryption to described receiving terminal;
Described receiving terminal receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving, and comprising:
Described receiving terminal receives the described communication key that described base station sends, and uses described communication key to be decrypted the express traffic request receiving.
3. method according to claim 1, is characterized in that:
Described transmitting terminal directly or by base station sends the express traffic request after encrypting to receiving terminal, comprising:
Described transmitting terminal sends express traffic request to described base station, the described express traffic request of accepting is determined according to the type of described transmitting terminal in described base station, and select a key to be encrypted described service request, then to described receiving terminal, send the express traffic request after described encryption;
Described receiving terminal receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving, and comprising:
Described receiving terminal receives the decruption key that described base station sends, and uses described decruption key to be decrypted the express traffic request receiving.
4. it is characterized in that according to the method in claim 2 or 3:
Described transmitting terminal is category-A or category-B wireless terminal, and described receiving terminal is category-A or C class wireless terminal.
5. method according to claim 4, is characterized in that:
Described category-A terminal, for receiving the data of other wireless terminal, can be received by other wireless terminal the wireless terminal of data again;
Described category-B terminal is to be received by other wireless terminal the wireless terminal of data;
Described C Terminal Type is for receiving the wireless terminal of the data of other wireless terminal.
6. a wireless terminal, is characterized in that, this wireless terminal comprises:
Process sending module, while being transmitting terminal for this wireless terminal, directly or by base station to receiving terminal, send the express traffic request after encrypting; And
Receiving processing module,, receives the key that base station sends, and uses described key to be decrypted the express traffic request receiving during as receiving terminal for this wireless terminal.
7. wireless terminal according to claim 6, is characterized in that:
Described processing sending module, specifically for:
Receive the communication key that base station sends, request is encrypted to express traffic to use described communication key, and sends the express traffic request after described encryption to described receiving terminal;
Described receiving processing module, specifically for:
Receive the described communication key that described base station sends, and use described communication key to be decrypted the express traffic request receiving.
8. wireless terminal according to claim 6, is characterized in that:
Described processing sending module, specifically for: to described base station, send express traffic request, the described express traffic request of accepting is determined according to the type of described transmitting terminal in described base station, and select a key to be encrypted described service request, then to described receiving terminal, send the express traffic request after described encryption;
Described receiving processing module, specifically for: receive the decruption key that described base station sends, and use described decruption key to be decrypted the express traffic request receiving.
9. according to the wireless terminal described in claim 6 or 7, it is characterized in that:
Described transmitting terminal is category-A or category-B wireless terminal, and described receiving terminal is category-A or C class wireless terminal.
10. wireless terminal according to claim 9, is characterized in that:
Described category-A terminal, for receiving the data of other wireless terminal, can be received by other wireless terminal the wireless terminal of data again;
Described category-B terminal is to be received by other wireless terminal the wireless terminal of data;
Described C Terminal Type is for receiving the wireless terminal of the data of other wireless terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379824.5A CN103716786B (en) | 2012-10-09 | 2012-10-09 | The method and wireless terminal of direct communication between wireless terminal |
| PCT/CN2013/082354 WO2014056359A1 (en) | 2012-10-09 | 2013-08-27 | Method for direct communication between wireless terminals and wireless terminal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379824.5A CN103716786B (en) | 2012-10-09 | 2012-10-09 | The method and wireless terminal of direct communication between wireless terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103716786A true CN103716786A (en) | 2014-04-09 |
| CN103716786B CN103716786B (en) | 2019-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210379824.5A Expired - Fee Related CN103716786B (en) | 2012-10-09 | 2012-10-09 | The method and wireless terminal of direct communication between wireless terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103716786B (en) |
| WO (1) | WO2014056359A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090325625A1 (en) * | 2008-06-03 | 2009-12-31 | Nokia Corporation | Method, apparatus and computer program for power control to mitigate interference |
| CN101835098A (en) * | 2010-03-26 | 2010-09-15 | 清华大学 | Dense user area-orientated wireless network reconstructed communication method |
| CN102172090A (en) * | 2011-04-28 | 2011-08-31 | 华为技术有限公司 | Method and device for communication between terminals |
-
2012
- 2012-10-09 CN CN201210379824.5A patent/CN103716786B/en not_active Expired - Fee Related
-
2013
- 2013-08-27 WO PCT/CN2013/082354 patent/WO2014056359A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090325625A1 (en) * | 2008-06-03 | 2009-12-31 | Nokia Corporation | Method, apparatus and computer program for power control to mitigate interference |
| CN101835098A (en) * | 2010-03-26 | 2010-09-15 | 清华大学 | Dense user area-orientated wireless network reconstructed communication method |
| CN102172090A (en) * | 2011-04-28 | 2011-08-31 | 华为技术有限公司 | Method and device for communication between terminals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103716786B (en) | 2019-03-12 |
| WO2014056359A1 (en) | 2014-04-17 |
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Granted publication date: 20190312 Termination date: 20201009 |