CN103841655A - Short-distance wireless communication method and system - Google Patents
Short-distance wireless communication method and system Download PDFInfo
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- CN103841655A CN103841655A CN201210473609.1A CN201210473609A CN103841655A CN 103841655 A CN103841655 A CN 103841655A CN 201210473609 A CN201210473609 A CN 201210473609A CN 103841655 A CN103841655 A CN 103841655A
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Abstract
The invention, which relates to the indoor wireless network field, provides a short-distance wireless communication method and system. The wireless network includes a plurality of devices and a voice relay device that is configured to be coupled to an access network. The method comprises the following steps that: a source device sends out a request of communication with a target device; according to the request, data path connection between one device in the wireless network with the voice relay device is established; and if the data path connection is established successfully, communication link connection between the device and the voice relay device is established. According to the invention, green, healthy and broadband voice communication can be completed by a low-cost high-reliability wireless communication way supporting high-quality voice transmission.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of method of short-distance wireless communication, and, a kind of system of short-distance wireless communication.
Background technology
Along with the rapid growth of radio communication service, the covering quality of communication network becomes the key factor that affects user awareness.Because wireless signal is accompanied by serious decay in the process of passing through the overcover arrival building interiors such as wall, thereby make indoor communications quality poor with respect to outdoor, for example, the indoor cutting off rate of CDMA (Code Division Multiple Access, code division multiple access) network is just up to more than 3%.At present, the indoor area coverage of radio communication only accounts for 20% left and right of whole area coverage, but according to investigation show, the radio communication service amount of indoor generation but accounts for 70% of total traffic, radio communication indoor user has also exceeded 2 times of outdoor user, and the business users of a collection of high value and high-tech user also concentrate on indoor.Therefore, effectively improve the indoor radio communication quality in city and become current problem demanding prompt solution.Considering the problems such as power consumption, radiation, signal quality and cost input and equipment complexity will be the only way that solves indoor signal intensity of mobile terminal problem.
Bluetooth technology belongs to a kind of short-range radio company connection technology, its objective is the communication that a low cost, high reliability, support better quality voice transfer are provided, can be used as and connect mobile communication and fixed-line telephone network, solve the effective scheme of indoor communications quality.Mobile terminal can carry out voice communication by bluetooth relaying and outside PSTN (public switch telephone network) or mobile network, and between mobile terminal and bluetooth relaying, utilizes bluetooth to set up respectively signaling and voice wireless connections.
At present, for indoor communications quality problems, various solutions are being found always and attempted to industry.Common a kind of solution is to strengthen the power output of outdoor base station, but this only allows and enters also grow thereupon of indoor signal of communication by increasing the method for descending communication signal intensity, do not solve the attenuation problem of signal of communication penetrate thing from principle, this method is also accompanied by the defects such as power consumption is large, radiation is high, electromagnetic pollution simultaneously; Second workaround is the quantity that increases base station, especially in building, set up small base station targetedly, the mode that penetrates barrier by avoidance is directly connected with indoor wireless communication user, but this way is first not only costly on equipment investment, and can cause indoor and outdoor with frequently influencing each other and pingpang handoff, simultaneously base station own radiation pollutes also harmful residents ' health, from concrete enforcement with the angle of safeguarding and the operating cost of Yan Genghui increase radio communication operator in the future; A kind of technology that solves indoor communications problem of rising is recently by indoor broadband internet access mobile communication core net, wherein, the most representative scheme is Femtocell (femtocell), it is a kind of microminiature wireless device towards indoor communications, this equipment uses existing two generations or three generations's communication means, can communicate by letter with 4～6 mobile terminals by smaller power simultaneously, and be connected with broadband internet network by indoor fixed broadband IP, mobile terminal is connected with mobile radio communication network the most at last.But, Femtocell base station still needs larger input (its cost of large-scale production is still at thousand yuans of orders of magnitude) on the one hand, on the other hand because the factors such as its complexity, volume and weight make Femtocell base station and be not easy to individual to carry.
Therefore, one of problem that the present invention is in the urgent need to address is, propose a kind of method and system of short-distance wireless communication mode, with the communication of low cost, high reliability, support better quality voice transfer, green, healthy, broadband completes voice communication.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of short-distance wireless communication, and, a kind of system of short-distance wireless communication.Can be with the communication of low cost, high reliability, support better quality voice transfer, green, healthy, broadband completes voice communication.
In order to address the above problem, the invention discloses a kind of method of short-distance wireless communication, involvement aspect is to indoor wireless network, described wireless network comprises some equipment and voice trunking device, wherein, described voice trunking device is configured to be coupled in Access Network, and described method comprises:
Source device sends the request of communicating by letter with target device;
The equipment being based upon in described wireless network according to described request is connected with the data path of described voice trunking device;
If set up described data path successful connection, set up described equipment and be connected with the communication link of voice trunking device.
Preferably, described voice trunking device comprises the log-on message of the equipment of being registered with and preserves voice trunking device and the database of device pairing information, and described source device also comprises before sending the step of the request of communicating by letter with target device:
Equipment and described voice trunking device match;
Described equipment sends registration request to described voice trunking device;
If allow registration, register the log-on message of described equipment at described database.
Preferably, the described equipment being based upon in described wireless network according to request comprises with the step that the data path of described voice trunking device is connected:
In database, search the log-on message that whether has the equipment in described wireless network according to described request;
If have, set up described data path successful connection;
If nothing, sets up described data path connection failure.
Preferably, described apparatus for establishing comprises with the step that the communication link of voice trunking device is connected:
Described equipment and voice trunking device are connected towards setting up signaling in connecting link asynchronous;
Described equipment is set up voice with voice trunking device and is connected on synchronous connection-oriented link.
Preferably, described method also comprises:
If set up described data path connection failure, source device directly sends communication request by Access Network to target device.
Preferably, described method also comprises:
Detect the messaging parameter of the instruction of signal strength signal intensity in communication process and link quality parameter;
When described messaging parameter is lower than preset standard and while exceeding Preset Time, stop communication.
Preferably, described method also comprises:
In the time of communication disruption, described equipment is closed described signaling with voice trunking device and is connected and voice connection.
The embodiment of the invention also discloses a kind of system of short-distance wireless communication, involvement aspect is to indoor wireless network, and described wireless network comprises some equipment and voice trunking device, wherein, described voice trunking device is configured to be coupled in Access Network, and described system comprises:
Be positioned at source device communication request and send module, for sending the request of communicating by letter with target device;
Data path link block, is connected with the data path of described voice trunking device for the equipment being based upon according to described request in described wireless network;
Communication link link block, if for setting up described data path successful connection, sets up described equipment and is connected with the communication link of voice trunking device.
Preferably, described voice trunking device comprises the log-on message of the equipment of being registered with and preserves voice trunking device and the database of device pairing information, and described communication request also comprises before sending module:
Matching module, matches for equipment and described voice trunking device;
Registering modules, sends registration request for described equipment to described voice trunking device;
Registration Module, if for allowing registration, at the log-on message of described database registering apparatus.
Preferably, described data path link block comprises:
Search submodule, for search the log-on message that whether has the equipment in described wireless network at database according to described request;
Data path successful connection submodule, for setting up described data path successful connection;
Data path connection failure submodule, for setting up described data path connection failure.
Preferably, described communication link link block comprises:
Signaling connexon module, is connected towards setting up signaling in connecting link asynchronous for described equipment and voice trunking device;
Voice connexon module is set up voice for described equipment and voice trunking device and is connected on synchronous connection-oriented link.
Preferably, described method also comprises:
Directly send request module, if for setting up described data path connection failure, source device directly sends communication request to target device.
Preferably, described method also comprises:
Messaging parameter detection module, for detection of the signal strength signal intensity instruction in communication process and the messaging parameter of link quality parameter;
Communication stops module, for when described messaging parameter is lower than preset standard and while exceeding Preset Time, stops communicating by letter.
Preferably, described method also comprises:
Connection closed module, for when the communication disruption, described equipment closes with voice trunking device that described signaling is connected and voice connect.
Compared with prior art, the present invention includes following advantage:
The present invention is by interconnected to equipment and voice trunking device, again voice trunking device is connected to Access Network (as PSTN or mobile communications network etc.), between equipment and voice trunking device, utilizing bluetooth to set up respectively signaling is connected with voice, equipment can carry out voice communication by voice trunking device and Access Network, in indoor radio communication, signal receiving quality is good, and speech quality is high.
In a preferred embodiment of the present invention, by allowing equipment carry out environment-identification configuration by communication protocol, in the time of communication, can automatically select to switch direct communication mode (by mobile radio communication direct communication) or trunking traffic mode (communicating by letter by voice trunking device) according to current environment, can be with the communication of low cost, high reliability, support better quality voice transfer, green, healthy, broadband completes voice communication.
Brief description of the drawings
Fig. 1 be of the present invention a kind of when outdoor the Basic architecture figure of short distance radio communication system;
Fig. 2 be of the present invention a kind of when indoor the Basic architecture figure of short distance radio communication system;
Fig. 3 be of the present invention a kind of when indoor the Basic architecture figure of short distance radio communication system;
Fig. 4 is a kind of voice trunking device basic structure block diagram of the present invention;
Fig. 5 is the flow chart of steps of the embodiment of the method for a kind of short-distance wireless communication of the present invention;
Fig. 6 is the flow chart of steps of the registration/pairing of mobile terminal of the present invention on voice trunking device;
Fig. 7 is the flow chart of steps connecting with voice trunking device that mobile terminal of the present invention is initiated;
Fig. 8 is the flow chart of steps that voice trunking device is called of passing through of mobile terminal initiation of the present invention;
Fig. 9 is the flow chart of steps of mobile terminal of the present invention processing to communication quality variation in communication process;
Figure 10 is the flow chart of steps connecting with mobile terminal that voice trunking device of the present invention is initiated;
Figure 11 is the flow chart of steps of voice trunking device of the present invention processing to Bluetooth communication mass change in communication process;
Figure 12 is the flow chart of steps of voice trunking device of the present invention processing to communication quality variation in communication process;
Figure 13 is the structured flowchart of the system embodiment of a kind of short-distance wireless communication of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
One of core idea of the embodiment of the present invention is, by interconnected to equipment and voice trunking device, again voice trunking device is connected to Access Network (as PSTN or mobile communications network etc.), allow equipment carry out environment-identification configuration by communication protocol, in the time of communication, can automatically select to switch direct communication mode or trunking traffic mode according to current environment, with the communication of low cost, high reliability, support better quality voice transfer, green, healthy, broadband completes voice communication.
With reference to Fig. 1, be depicted as of the present invention a kind of when outdoor the Basic architecture figure of short distance radio communication system, in this Basic architecture, can comprise:
Communication core net, for connecting Access Network (as PSTN or mobile communications network etc.);
Mobile radio communication, for connection device and communication core net;
Equipment, for connecting networking.
With reference to Fig. 2 or Fig. 3, be depicted as of the present invention a kind of when indoor the Basic architecture figure of short distance radio communication system, in this Basic architecture, can comprise:
Communication core net, for the multiple Access Networks of tandem, is routed to the call request of one of them Access Network or request of data on different Access Networks, receives the uplink communication signal of Access Network and produce descending communication signal to send to Access Network.
PSTN (PSTN) (referring to Fig. 2), an or mobile radio communication (referring to Fig. 3), for receiving the uplink communication signal that meets Access Network agreement from voice trunking device, and this signal is sent to communication core net, receive the descending communication signal that meets Access Network agreement from communication core net simultaneously, and this signal is sent to voice trunking device.
Voice trunking device, the log-on message of management equipment, sets up short-range wireless protocol (can use Bluetooth protocol here) with equipment and is connected to transmit signaling and voice.Voice trunking device is connected with Access Network, receive the descending communication signal that meets Access Network agreement from Access Network, the descending communication signal of reception is converted to the descending communication signal that meets short-range wireless protocol, and send to the equipment matching, receive the uplink communication signal that meets short-range wireless protocol from the equipment matching simultaneously, the uplink communication signal of reception is converted to the uplink communication signal that meets Access Network agreement, and sends to Access Network.
Equipment, is connected with Access Network by voice trunking device, and Access Network is connected with communication core net.Equipment is used for receiving the descending communication signal that meets short-range wireless protocol from voice trunking device, and sends the uplink communication signal that meets short-range wireless protocol to voice trunking device.
With reference to Fig. 4, be depicted as a kind of voice trunking device basic structure block diagram of the present invention, in this basic structure, can comprise as lower module:
Access Network telephone control module, for being connected with the connected access network of voice trunking device, is connected with bluetooth hardware module by PCM speech interface;
Bluetooth control module, the control module of voice trunking device, by AT command interface control Access Network telephone control module;
Bluetooth hardware module, for providing blue teeth wireless function.
With reference to Fig. 5, show the flow chart of steps of a kind of short-distance wireless communication method embodiment of the present invention, involvement aspect is to indoor wireless network, described wireless network comprises some mobile terminals and voice trunking device, wherein, described voice trunking device is configured to be coupled in Access Network, and described method can comprise the steps:
When equipment sends the request of communication to Access Network, first equipment is searched for voice relay in wireless network, forward described in it communication request to Access Network via voice trunking device again, wherein, described short-distance wireless communication can be realized by bluetooth, voice trunking device can be opened Bluetooth function, and being set to the visible or default setting of bluetooth is that bluetooth is visible.
In a preferred embodiment of the present invention, described voice trunking device comprises the log-on message of the equipment of being registered with and preserves voice trunking device and the database of device pairing information, before described source device sends the step of the request of communicating by letter with target device, described method can also comprise the steps:
Step S1, equipment and described voice trunking device match;
Step S2, described equipment sends registration request to described voice trunking device;
Step S3, if allow registration, registers the log-on message of described equipment at described database.
In specific implementation, equipment can match and register information in advance in voice trunking device, wherein, described log-on message comprises the number of equipment, IMSI (international mobile subscriber identity) etc., set up corresponding relation with voice trunking device like this, facilitate subsequent voice relay to search relevant device.
In a preferred embodiment of the present invention, described step 102 can comprise following sub-step:
Sub-step S11 searches the log-on message that whether has the equipment in described wireless network in database according to described request;
Sub-step S12, if having, sets up described data path successful connection;
Sub-step S13, if nothing is set up described data path connection failure.
In specific implementation, in the time that source device sends the request of communication to target device, language relay is searched the log-on message of corresponding device in database, if it is registered to find equipment, set up data path successful connection, if the equipment that finds is not registered, set up described data path connection failure.Once certain equipment and the successful matching of voice trunking device, can close data path by SDP (service discovery protocol) agreement, make miscellaneous equipment cannot find voice trunking device, thereby avoided multiple equipment to seize the situation of voice trunking device simultaneously.
In a preferred embodiment of the present invention, described method can also comprise the steps:
If set up described data path connection failure, source device directly sends communication request by Access Network to target device.
Preferably, if source device and the connection failure of voice trunking device, source device can directly pass through the request of Access Network (for example mobile radio communication) to target device initiating communication.
In a preferred embodiment of the present invention, the step that described apparatus for establishing is connected with the communication link of voice trunking device can comprise following sub-step:
Sub-step S21, described equipment and voice trunking device are connected towards setting up signaling in connecting link asynchronous;
Sub-step S22, described equipment is set up voice with voice trunking device and is connected on synchronous connection-oriented link.
Concrete, if be based upon equipment in described wireless network and the data path successful connection of described voice trunking device, source device is set up signaling connection on ACL (asynchronous towards being connected) link with voice trunking device, sets up voice and connect on SCO (synchronously towards connecting) link.
In a preferred embodiment of the present invention, described method can also comprise the steps:
Sub-step S31, detects the messaging parameter of the instruction of signal strength signal intensity in communication process and link quality parameter;
Sub-step S32, when described messaging parameter is lower than preset standard and while exceeding Preset Time, stops communication.
After the communication link successful connection of apparatus for establishing and voice trunking device, can detect the messaging parameter of the instruction of signal strength signal intensity between equipment and the voice trunking device in wireless network and link quality parameter, when messaging parameter is lower than preset standard and while exceeding Preset Time, can be by voice trunking device communication close, avoid messaging parameter too low, affect communication quality.
104, in the time of communication disruption, described equipment is closed described signaling with voice trunking device and is connected and voice connection.
In the time of the sign off of source device and target device, equipment closes with voice trunking device that described signaling is connected and voice connect, to save the resource of communication.
In order to make those skilled in the art further understand the embodiment of the present invention, the example that the mobile terminal (source device) below by wireless network sends the request of communication to the destination mobile terminal (target device) in Access Network describes.
When initial, construct a wireless network towards indoor environment, described wireless network comprises some mobile terminals and voice trunking device, wherein, mobile terminal is the intelligent terminal of supporting Bluetooth function, and related work program is installed, and mobile terminal completes pairing registration on voice trunking device.
With reference to Fig. 6, be depicted as the flow chart of steps of the registration/pairing of mobile terminal of the present invention on voice trunking device, specifically comprise the steps:
Step (1.1), voice trunking device is opened Bluetooth function and is set to bluetooth visible (because voice trunking device is indoor equipment, so Bluetooth function can default setting be to open and visible);
Step (1.2), mobile terminal is opened Bluetooth function and is set to bluetooth visible;
Step (1.3), mobile scanning terminal periphery bluetooth equipment (voice trunking device);
Step (1.4), judges whether mobile terminal finds voice trunking device within the preset time, if so, performs step (1.5), if not, and registration failure, next mobile terminal of the renewal of registration;
Step (1.5), mobile terminal and voice trunking device match, every mobile terminal has an acquiescence pairing password, wherein, described acquiescence pairing password needs user's manually input in the time matching first, in pairing step subsequently, voice trunking device, according to the password that pairing is preserved first, completes automatic matching with mobile terminal.This password configuration change separately, to reach better fail safe;
Step (1.6), mobile terminal carries out data with voice trunking device and is connected, because SDP (service discovery protocol) supports Bluetooth profile (Bluetooth specification) more widely, so default data connects based on RFCOMM (serial cable simulation protocol);
Step (1.7), mobile terminal sends registration request to voice trunking device, and registration request comprises the uniqueness information such as phone number, IMSI (international mobile subscriber identity) of current mobile terminal;
Step (1.8), voice trunking device is responded registering result to mobile terminal, if allowed, returns to the prompting of succeeding in registration, and voice trunking device is recorded in the log-on message of mobile terminal in database simultaneously; If registered mistake, returns to repeated registration prompting; If because safety regulation does not allow this mobile terminal registration, return and forbid registration prompting;
Step (1.9), judges whether to succeed in registration, and if so, performs step (1.10), if not, and execution step (1.11);
Step (1.10), next mobile terminal of the renewal of registration;
Step (1.11), checks registration failure reason;
Step (1.12), judges whether that all mobile terminals all complete registration, if so, performs step (1.13), if not, returns to step (1.2);
Step (1.13), all mobile terminal registrations finish.
With reference to Fig. 7, the flow chart of steps connecting with voice trunking device that is depicted as that mobile terminal of the present invention initiates, specifically comprises the steps:
Step (2.1), voice trunking device is opened Bluetooth function and is set to bluetooth visible;
Step (2.2), the working procedure on mobile terminal is opened Bluetooth function;
Step (2.3), initialization delay parameter t=t0;
Step (2.4), mobile scanning terminal periphery, detects voice trunking device;
Step (2.5), judges whether to find voice trunking device, if so, performs step (2.6), if not, and execution step (2.7);
Step (2.6), mobile terminal with in voice trunking device busy program, set up data and be connected;
Step (2.7), will double (t=2t0) stand-by period, again waits for;
Step (2.8), judges whether the stand-by period exceeded the upper limit stand-by period (t=tmax), if not, returns to step (2.4), if so, connects and sets up unsuccessfully;
Step (2.9), the working procedure on mobile terminal sends access request to voice trunking device;
Step (2.10), voice trunking device is according to solicited message Query Database;
Step (2.11), judges that whether mobile terminal is registered, if so, performs step (2.12), if not, connects and sets up unsuccessfully;
Step (2.12), voice trunking device is responded access successful information to mobile terminal;
Step (2.13), voice trunking device and mobile terminal conversion master-slave equipment, making voice trunking device is main equipment;
Step (2.14), mobile terminal and relay connection have been set up.
With reference to Fig. 8, be depicted as the flow chart of steps that voice trunking device is called of passing through of mobile terminal initiation of the present invention, specifically comprise the steps:
Step (3.1), mobile terminal is called out certain number on its interface by working procedure;
Step (3.2), mobile terminal shows the interface of calling out;
Step (3.3), mobile terminal is attempted and voice trunking device connects;
Step (3.4), judges whether mobile terminal and voice trunking device successfully connect, if not, and execution step (3.5); If so, perform step (3.6),
Step (3.5), mobile terminal is normally called by mobile radio communication;
Step (3.6), mobile terminal is set up signaling with voice trunking device and is connected on ACL link, sets up voice and connect on SCO link;
Step (3.7), mobile terminal connects call number to send to voice trunking device by signaling;
Step (3.8), voice trunking device is called by the communication network being attached thereto, and is connected ring back tone is sent on mobile terminal by voice;
Step (3.9), judges whether the other side connects phone, and if not, execution step (3.10), if so, performs step (3.12);
Step (3.10), voice trunking device is connected and is informed mobile terminal failure cause by signaling, as the line is busy or cannot connect;
Step (3.11), mobile terminal show Calls failure interface;
Step (3.12), both sides are by voice trunking device speech phase;
Step (3.13), voice trunking device connects the other side's voice transfer to mobile terminal by voice, mobile terminal connects one's own side's voice transfer to voice trunking device by voice, and both sides' voice carry out transfer call-information by voice trunking device;
Step (3.14), judges whether call finishes, and if so, performs step (3.15);
Step (3.15), judges whether to be hung up the telephone by the other side, and if not, execution step (3.16), if so, performs step (3.17);
Step (3.16), mobile terminal connects notice voice trunking device by signaling to be finished call voice relay and will hang up the telephone;
Step (3.17), voice trunking device connects notice mobile terminal call by signaling to be finished;
Step (3.18), mobile terminal and voice trunking device are closed signaling and are connected with voice and are connected;
Step (3.19), end of conversation.
With reference to Fig. 9, be depicted as the flow chart of steps of mobile terminal of the present invention processing to communication quality variation in communication process, specifically comprise the steps:
Step (4.1), starts communication;
Step (4.2), mobile terminal detects HCI_Read_RSSI (signal strength signal intensity instruction) and these two messaging parameters of HCI_Get_Link_Quality (link quality parameter) in communication process simultaneously;
Step (4.3), mobile terminal judges that HCI_Read_RSSI (signal strength signal intensity instruction) and these two messaging parameters of HCI_Get_Link_Quality (link quality parameter) are whether lower than setting and exceeding certain hour, if so, perform step (4.4);
Step (4.4), now because voice trunking device is closed call, electric interface is removed in interface of mobile terminal demonstration;
Step (4.5), judges that user selects whether initiatively to dial, and if so, performs step (4.6);
Step (4.6), mobile terminal is initiated call by mobile communications network;
Step (4.7), end of conversation.
In order to make those skilled in the art further understand the embodiment of the present invention, the example that the mobile terminal (source device) below by another in Access Network sends the request of communication to the destination mobile terminal (target device) in wireless network describes.
With reference to Figure 10, the flow chart of steps connecting with mobile terminal that is depicted as that voice trunking device of the present invention initiates, specifically comprises the steps:
Step (5.1), voice trunking device is opened Bluetooth function and is set to bluetooth visible;
Step (5.2), voice trunking device scanning periphery, detects mobile terminal;
Step (5.3), judges whether voice trunking device finds mobile terminal, and if not, execution step (5.4), if so, performs step (5.5);
Step (5.4), waits for that after the some time, voice trunking device returns to step (5.2), and scan round, if until overtime voice trunking device is not found mobile terminal yet, connects and sets up unsuccessfully;
Step (5.5), if voice trunking device is found mobile terminal, sets up with it data and connects;
Step (5.6), voice trunking device sends access request to mobile terminal;
Step (5.7), judges whether mobile terminal is correctly responded, and if so, performs step (5.8), if not, and execution step (5.9)
Step (5.8), voice trunking device, according to return information Query Database, comprises paired data storehouse, comprises password, pairing password, phone number;
Step (5.9), voice trunking device is initiated registration request to mobile terminal, and mobile terminal is registered pairing at voice trunking device;
Step (5.10), judges whether mobile terminal succeeds in registration, and if so, connects and has set up, and if not, connects and sets up unsuccessfully;
Step (5.11), judges that whether mobile terminal is registered, if so, performs step (5.12), if not, and execution step (5.9);
Step (5.12), voice trunking device is responded access successful information to mobile terminal, proceeds to step (5.13);
Step (5.13), mobile terminal and relay connection have been set up.
With reference to Figure 11, be depicted as the flow chart of steps that voice trunking device is called of passing through of mobile terminal initiation of the present invention, specifically comprise the steps:
Step (6.1), the mobile radio communication being connected with voice trunking device incoming call;
Step (6.2), voice trunking device detects registered mobile terminal and attempts connecting with it;
Step (6.3), judges to connect whether be successfully established, and if not, execution step (6.4), if so, performs step (6.5);
Step (6.4), the telephone plant ringring prompting user that the control of voice trunking device is attached thereto;
Step (6.5), mobile terminal is set up signaling with voice trunking device and is connected on ACL link;
Step (6.6), voice trunking device connects by signaling the number notifying mobile terminal of sending a telegram here, and the latter obtains the contact name of caller ID according to address list coupling, then show to come electric interface, and play incoming ring tone;
Step (6.7), judges whether user answers, and if not, execution step (6.8), if so, performs step (6.11);
Step (6.8), mobile terminal is connected and is informed that voice trunking device hangs incoming call by signaling;
Step (6.9), voice trunking device is hung incoming call;
Step (6.10), mobile terminal shows incoming call blocking interface, end of conversation;
Step (6.11), mobile terminal connects notice voice trunking device connecting incoming call by signaling;
Step (6.12), mobile terminal is set up voice with voice trunking device and is connected on SCO link;
Step (6.13), voice trunking device connects the other side's voice transfer to mobile terminal by voice;
Step (6.14), mobile terminal connects one's own side's voice transfer to voice trunking device by voice, and both sides' voice carry out device transfer by voice trunking;
Step (6.15), judges to call out whether finish, and if so, performs step (6.16), if not, continues execution step (6.13) to (6.14);
Step (6.16), judges whether to be hung up the telephone by the other side, and if not, execution step (6.17), if so, performs step (6.18);
Step (6.17), mobile terminal connects notice voice trunking device by signaling and finishes call, and voice trunking device will be hung up the telephone;
Step (6.18), voice trunking device connects notice mobile terminal call by signaling to be finished;
Step (6.19), mobile terminal and voice trunking device are closed signaling and are connected with voice and are connected;
Step (6.10), end of conversation.
With reference to Figure 12, be depicted as the flow chart of steps of voice trunking device of the present invention processing to Bluetooth communication mass change in communication process, specifically comprise the steps:
Step (7.1), starts communication;
Step (7.2), voice trunking device detects HCI_Read_RSSI (signal strength signal intensity instruction) and these two messaging parameters of HCI_Get_Link_Quality (link quality parameter) in communication process simultaneously;
Step (7.3), voice trunking device judges that HCI_Read_RSSI (signal strength signal intensity instruction) and two messaging parameters of HCI_Get_Link_Quality (link quality parameter) are whether lower than established standards and exceed certain hour, if so, perform step (7.4);
Step (7.4), voice trunking device is closed call;
Step (7.5), end of conversation.
It should be noted that, the power consumption of the embodiment of the present invention is very low; The wireless communication signals penetrate thing of launching due to the outdoor base station of mobile radio communication arrives indoor will decline, outdoor base station must improve transmit signal strength just can guarantee to exist under indoor certain environment stable wireless communication signals, the energy consumption that this certainly will increase outdoor base station, has improved operation cost.On the other hand, indoor moving terminal must improve self signal transmission power to keep and the stabilized communication of outdoor base station, and this can cause the energy consumption of indoor moving terminal to increase, and directly has influence on the flying power of mobile terminal.In embodiments of the present invention, due to voice trunking device and mobile terminal by bluetooth in the indoor radio communication of carrying out, self power is very low, add that voice trunking device can select to be connected with public switch telephone network (PSTN) or mobile radio communication, its power consumption is not high, and therefore this energy will be made very large contribution for energy-conservation.
The embodiment of the present invention is high in indoor speech quality; Under existing system; there is the problem that decay is large that penetrates in indoor reception wireless signal; and because the various interference such as multipath effect make the outer wireless signal of indoor normal receiving chamber more difficult, adding outdoor interference, user often can run into the interrupted even situation of call drop of call.And in embodiments of the present invention, mobile terminal is owing to carrying out indoor Bluetooth wireless communication with voice trunking device, its signal receiving quality is good, and speech quality is high.Therefore, the embodiment of the present invention will fundamentally solve indoor wireless communication quality problems.
The embodiment of the present invention can reduce the radiation of mobile radio telecommunications, useful user health; Mobile radio networks brings great convenience to people's life, but its electromagnetic pollution inevitably impacts our health.Penetrate in order to make up signal the loss that barrier causes, mobile terminal needs to improve transmitting power under the environment of signal difference, and this can cause the increase of radiation.Contrast existing wireless communications system: the transmitting power that adopts the indoor moving terminal of GSM (global system for mobile communications) to need is 800～2000mW, the transmitting power that adopts the indoor moving terminal of CDMA (code division multiple access) to need is 200～1000mW.And the power consumption representative value that adopts the indoor moving terminal of the embodiment of the present invention to need is 2.5mW (Class2,10 meters of scopes are effective), even increased the Class1 (100 meters of scopes are effective) of transmitting power, power consumption is also no more than 100mW.The visible embodiment of the present invention is down to the radiation that makes mobile terminal very low, more healthy green concerning user.
The equipment cost of the embodiment of the present invention is low, good to existing equipment inheritance; On indoor existing equipment basis, in the embodiment of the present invention, only need the permanent plant increasing only to have voice trunking device, this equipment is mainly made up of cheap indoor wireless module, interface module and processor.Compare other solutions such as Femtocell (microcellulor type base station), hardware cost of the present invention is with the obvious advantage, and is easy to realize.Only need it to support bluetooth to mobile terminal, and corresponding software is installed.The embodiment of the present invention can be utilized existing as Access Networks such as public switch telephone network (PSTN) and mobile networks, can well inherit existing equipment.
The use difficulty of the embodiment of the present invention is low, and user experiences; Leave and indoorly come outdoorly when user carries mobile terminal, because can't detect voice trunking device, mobile terminal can automatically switch communication network for mobile network, and all uses are as usual; When user enters indoorly, because voice trunking device can loop cycle detected, mobile terminal is able to automatically and voice trunking device connects, thereby can communicate by voice trunking device.User, without this handoff procedure of manual intervention, reaches good experience effect.
It should be noted that, for embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
With reference to Figure 13, be depicted as the system of a kind of short-distance wireless communication of the present invention, involvement aspect is to indoor wireless network, described wireless network comprises some equipment and voice trunking device, wherein, described voice trunking device is configured to be coupled in Access Network, and described system can comprise as lower module:
Be positioned at source device communication request and send module 201, for sending the request of communicating by letter with target device;
In a preferred embodiment of the present invention, described voice trunking device comprises the log-on message of the equipment of being registered with and preserves voice trunking device and the database of device pairing information, before described communication request is sent module 201, can also comprise as lower module:
Matching module, matches for equipment and described voice trunking device;
Registering modules, sends registration request for described equipment to described voice trunking device;
Registration Module, if for allowing registration, at the log-on message of described database registering apparatus.
Data path link block 202, is connected with the data path of described voice trunking device for the equipment being based upon according to described request in described wireless network;
In a preferred embodiment of the present invention, described data path link block 202 can comprise following submodule:
Search submodule, for search the log-on message that whether has the equipment in described wireless network at database according to described request;
Data path successful connection submodule, for setting up described data path successful connection;
Data path connection failure submodule, for setting up described data path connection failure.
Communication link link block 203, if for setting up described data path successful connection, sets up described equipment and is connected with the communication link of voice trunking device.
In a preferred embodiment of the present invention, described communication link link block 203 can comprise following submodule:
Signaling connexon module, is connected towards setting up signaling in connecting link asynchronous for described equipment and voice trunking device;
Voice connexon module is set up voice for described equipment and voice trunking device and is connected on synchronous connection-oriented link.
In a preferred embodiment of the present invention, can also comprise as lower module:
Directly send request module, if for setting up described data path connection failure, source device directly sends communication request to target device.
In a preferred embodiment of the present invention, can also comprise as lower module:
Messaging parameter detection module, for detection of the signal strength signal intensity instruction in communication process and the messaging parameter of link quality parameter;
Communication stops module, for when described messaging parameter is lower than preset standard and while exceeding Preset Time, stops communicating by letter.
Connection closed module 204, for when the communication disruption, described equipment closes with voice trunking device that described signaling is connected and voice connect.
For the system embodiment shown in Figure 13, because it is substantially similar to the embodiment of the method shown in Fig. 5, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
Those skilled in the art should understand, embodiments of the invention can be provided as method, device or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (device) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Finally, also it should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Method to a kind of short-distance wireless communication provided by the present invention above, and, a kind of system of short-distance wireless communication, be described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (14)
1. a method for short-distance wireless communication, is characterized in that, involvement aspect is to indoor wireless network, and described wireless network comprises some equipment and voice trunking device, and wherein, described voice trunking device is configured to be coupled in Access Network, and described method comprises:
Source device sends the request of communicating by letter with target device;
The equipment being based upon in described wireless network according to described request is connected with the data path of described voice trunking device;
If set up described data path successful connection, set up described equipment and be connected with the communication link of voice trunking device.
2. method according to claim 1, it is characterized in that, described voice trunking device comprises the log-on message of the equipment of being registered with and preserves voice trunking device and the database of device pairing information, and described source device also comprises before sending the step of the request of communicating by letter with target device:
Equipment and described voice trunking device match;
Described equipment sends registration request to described voice trunking device;
If allow registration, register the log-on message of described equipment at described database.
3. method according to claim 2, is characterized in that, the described equipment being based upon in described wireless network according to request comprises with the step that the data path of described voice trunking device is connected:
In database, search the log-on message that whether has the equipment in described wireless network according to described request;
If have, set up described data path successful connection;
If nothing, sets up described data path connection failure.
4. method according to claim 1, is characterized in that, described apparatus for establishing comprises with the step that the communication link of voice trunking device is connected:
Described equipment and voice trunking device are connected towards setting up signaling in connecting link asynchronous;
Described equipment is set up voice with voice trunking device and is connected on synchronous connection-oriented link.
5. method according to claim 1, is characterized in that, also comprises:
If set up described data path connection failure, source device directly sends communication request by Access Network to target device.
6. method according to claim 1, is characterized in that, also comprises:
Detect the messaging parameter of the instruction of signal strength signal intensity in communication process and link quality parameter;
When described messaging parameter is lower than preset standard and while exceeding Preset Time, stop communication.
7. according to the method described in the arbitrary claim of claim 1-6, it is characterized in that, also comprise:
In the time of communication disruption, described equipment is closed described signaling with voice trunking device and is connected and voice connection.
8. a system for short-distance wireless communication, is characterized in that, involvement aspect is to indoor wireless network, and described wireless network comprises some equipment and voice trunking device, and wherein, described voice trunking device is configured to be coupled in Access Network, and described system comprises:
Be positioned at source device communication request and send module, for sending the request of communicating by letter with target device;
Data path link block, is connected with the data path of described voice trunking device for the equipment being based upon according to described request in described wireless network;
Communication link link block, if for setting up described data path successful connection, sets up described equipment and is connected with the communication link of voice trunking device.
9. system according to claim 8, is characterized in that, described voice trunking device comprises the log-on message of the equipment of being registered with and preserve voice trunking device and the database of device pairing information, and described communication request also comprises before sending module:
Matching module, matches for equipment and described voice trunking device;
Registering modules, sends registration request for described equipment to described voice trunking device;
Registration Module, if for allowing registration, at the log-on message of described database registering apparatus.
10. system according to claim 9, is characterized in that, described data path link block comprises:
Search submodule, for search the log-on message that whether has the equipment in described wireless network at database according to described request;
Data path successful connection submodule, for setting up described data path successful connection;
Data path connection failure submodule, for setting up described data path connection failure.
11. systems according to claim 8, is characterized in that, described communication link link block comprises:
Signaling connexon module, is connected towards setting up signaling in connecting link asynchronous for described equipment and voice trunking device;
Voice connexon module is set up voice for described equipment and voice trunking device and is connected on synchronous connection-oriented link.
12. systems according to claim 8, is characterized in that, also comprise:
Directly send request module, if for setting up described data path connection failure, source device directly sends communication request to target device.
13. systems according to claim 8, is characterized in that, also comprise:
Messaging parameter detection module, for detection of the signal strength signal intensity instruction in communication process and the messaging parameter of link quality parameter;
Communication stops module, for when described messaging parameter is lower than preset standard and while exceeding Preset Time, stops communicating by letter.
System described in 14. according to Claim 8-13 arbitrary claims, is characterized in that, also comprises:
Connection closed module, for when the communication disruption, described equipment closes with voice trunking device that described signaling is connected and voice connect.
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