CN106131884A - Mobile communications device and service persistence method - Google Patents
Mobile communications device and service persistence method Download PDFInfo
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- CN106131884A CN106131884A CN201510788402.7A CN201510788402A CN106131884A CN 106131884 A CN106131884 A CN 106131884A CN 201510788402 A CN201510788402 A CN 201510788402A CN 106131884 A CN106131884 A CN 106131884A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
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Abstract
A kind of have wireless transceiver and the mobile communications device of controller and service persistence method.This communicator is positioned at the signal covering scope of service network in order to as the adjacent service user device relaying user device to network trunk.Wireless transceiver performs being wirelessly transferred and receiving between service network and the long distance user device outside the signal covering scope of service network.Controller receives measurement report information by wireless transceiver from long distance user device, and when measurement report information indicates the connection state between long distance user device and mobile communications device less than predetermined threshold, by wireless transceiver transmit relaying exploration information to other relay user device, with trigger other relaying user devices start transporter to device synchronizing signal.
Description
Technical field
The present invention relates generally to wireless communication technology, is applicable to adjacent service (Proximity-based particularly to one
Service, ProSe) user device (User Equipment, UE) is to network trunk (UE-to-network relay)
Service persistence method.
Background technology
In recent years, due to masses, the demand of pervasive (ubiquitous) computing with network service is increased substantially, respectively
Plant wireless technology to come out one after another, including: global system for mobile communications (Global System for Mobile
Communications, GSM) technology, GPRS (General Packet Radio Service, GPRS) skill
Art, the whole world enhanced data transmission (Enhanced Data rates for Global Evolution, EDGE) technology, wideband
CDMA access (Wideband Code Division Multiple Access, WCDMA) technology, CDMA access-
2000 (Code Division Multiple Access 2000, CDMA-2000) technology, Time division multiple access
(Time Division-Synchronous Code Division Multiple Access, TD-SCDMA) technology, the whole world are mutually
Lead to inserting of microwave (Worldwide Interoperability for Microwave Access, WiMAX) technology, drill for a long time
Enter (Long Term Evolution, LTE) technology, Long Term Evolution strengthening (LTE-Advanced, LTE-A) technology and time-division
Long Term Evolution (Time-Division LTE, TD-LTE) technology etc..By using one of above-mentioned wireless technology, mobile communication fills
Put (or can be described as user device) and just can be wirelessly coupled to world-wide web or service network, include neighbour to obtain whenever and wherever possible
Nearly service is at interior Information Mobile Service, and wherein the development of adjacent service is that the demand in response to the science and technology of community in recent years emerges.
As a example by Long Term Evolution, adjacent service begins at the third generation partner program (3rd of the 12nd version
Generation Partnership Project, 3GPP) the specification standards book worked out of tissue is suggested.Possess neighbouring clothes
The user device of business function can the assistance by the performance of device itself or by long-term evolving network explore neighbouring other
Also possesses the user device of adjacent service function.In addition to adjacent service is explored, possesses the user of adjacent service function
Device is alternatively arranged as the relaying between other two the user devices possessing adjacent service function or possesses as another
Relaying between user device and the long-term evolving network of adjacent service function, in order to provide adjacent service to lead at the rwo
Letter.But, the specification standards book TR23.713 worked out according to third generation partner program tissue, as the user of relaying
Device (also can be called relaying user device) line must be set up with long-term evolving network and require adjacent service user
The device Radio Resource that use required to network trunk (ProSe UE-to-network relay), and need to persistently transmit dress
Put device synchronizing signal (Device-to-Device Synchronization Signal, D2DSS), make way for long-term
User device outside the signal covering scope of evolvement network (also can be called far-end user device) can be made by relaying
User's device transfers data to long-term evolving network.Consequently, it is possible to relaying user device will face asking of power consumption/waste
Inscribe, and the Radio Resource of long-term evolving network easily has the problem lacking efficiency on using, and especially makes when neighbouring far-end
When user's device does not need to use adjacent service user device to the service of network trunk.
On the other hand, when far-end user device or relaying user device move when, adjacent service between the two
User device may face broken string to the service of network trunk (ProSe UE-to-network relay).Therefore, how
Allow far-end user device can persistently obtain service and become a problem needing solution badly.
Summary of the invention
The first embodiment of the present invention provides a kind of mobile communication dress with a wireless transceiver and a controller
Put, its be positioned at the signal covering scope of a service network in order to as adjacent service user device to network trunk one in
Continue user device (relay UE).Above-mentioned wireless transceiver be perform with above-mentioned service network be positioned at above-mentioned service network
Being wirelessly transferred and receiving between the long distance user device outside the signal covering scope of network.Controller noted above is to pass through
Above-mentioned wireless transceiver receives a measurement report information from above-mentioned long distance user device, and indicates in above-mentioned measurement report information
When a connection state between above-mentioned long distance user device and above-mentioned mobile communications device is less than a predetermined threshold, by above-mentioned
Wireless transceiver transmits a relaying exploration information and relays user device to other, to trigger other relaying user devices above-mentioned
Start to transmit a device to device synchronizing signal.
The second embodiment of the present invention provides a kind of service persistence method, it is adaptable to adjacent service user device is to net
Network relaying is also relayed performed by user device by the one of the signal covering scope being positioned at a service network, and above-mentioned service continues
Method includes: receive a measurement report information from a long distance user device (remote UE)；And in above-mentioned measurement report
When information indicates the connection state between above-mentioned long distance user device and above-mentioned mobile communications device less than a predetermined threshold,
Transmit one relaying exploration information to other relay user device, with trigger above-mentioned other relaying user devices start to transmit one
Device is to device synchronizing signal.
The third embodiment of the present invention provides a kind of mobile communication dress with a wireless transceiver and a controller
Putting, it is outer in order to remote to the one of network trunk as adjacent service user device that it is positioned at the signal covering scope of a service network
Away from user device.Above-mentioned wireless transceiver is to perform to contain with above-mentioned service network and the signal being positioned at above-mentioned service network
Being wirelessly transferred and receiving between the relaying user device in the range of lid.Controller noted above is to be used to by above-mentioned wireless
Transceiver measures the connection state with above-mentioned relaying user device less than passing through above-mentioned wireless receiving and dispatching during a predetermined threshold
Device transmits a relaying exploration information and relays user device to other, is used from other relayings above-mentioned by above-mentioned wireless transceiver
Person's device receives one or more device to device synchronizing signal, and selects device synchronizing signal to above-mentioned according to said apparatus
The one of other relaying user devices transmits always on letter solicited message to set up line.
The fourth embodiment of the present invention provides a kind of service persistence method, it is adaptable to adjacent service user device is to net
Network relays and by performed by the far-end user device outside the signal covering scope being positioned at a service network, above-mentioned service continues
Method includes: in time measuring the connection state with a relaying user device less than a predetermined threshold, transmits a relaying and visits
Rope information relays user device to other；Receive one or more device from other relaying user devices above-mentioned device is synchronized
Signal；And select the one of other relaying user devices above-mentioned is transmitted always to device synchronizing signal according to said apparatus
Connect letter solicited message to set up line.
About the present invention other additional feature and advantages, those skilled in the art, in the spirit without departing from the present invention
With in scope, when doing a little variation according to mobile communications device disclosed in this case implementation and service persistence method
Obtain with retouching.
Accompanying drawing explanation
Fig. 1 is the schematic diagram according to the wireless communications environment described in one embodiment of the invention.
Fig. 2 is the schematic diagram according to the mobile communications device described in one embodiment of the invention.
Fig. 3 A Yu 3B is according to the information to network trunk of the adjacent service user device described in one embodiment of the invention
Sequence chart.
Fig. 4 A is the information sequence figure of the exploring mode of the Mode A described in the embodiment according to Fig. 3 A Yu 3B.
Fig. 4 B is the information sequence figure of the exploring mode of the Mode B described in the embodiment according to Fig. 3 A Yu 3B.
Fig. 5 is the information sequence of the line foundation of the One-to-one communication described in the embodiment according to Fig. 3 A Yu 3B of the present invention
Figure.
Fig. 6 A is measuring and the information sequence figure of return according to the connection state described in one embodiment of the invention.
Fig. 6 B is measuring and the information sequence figure of return according to the connection state described in another embodiment of the present invention.
Fig. 7 is the letter of the relaying heuristic routine initiated by relaying user device described in the embodiment according to Fig. 3 A Yu 3B
Breath sequence chart.
Description of reference numerals:
100 wireless communications environments；
110～140 mobile communications devices；
150 service networks；
151 access networks；
152 core networks；
10 wireless transceivers；
11 radio-frequency units；
12 fundamental frequency processing meanss；
13 antennas；
20 controllers；
30 storage devices；
40 display devices；
50 input equipment；
S310～S390, S510～S550 step.
Detailed description of the invention
What this section was described is preferred embodiment of the present invention, it is therefore intended that illustrate that the spirit of the present invention is not used to
Limit protection scope of the present invention, it should be understood that the following example can come real via software, hardware, firmware or above-mentioned combination in any
Existing.The specification standards book that the third generation partner program addressed in literary composition is worked out is only in order to assist to express the essence of the present invention
God, and be not used to limit the scope of the invention.
Fig. 1 is the schematic diagram according to the wireless communications environment described in one embodiment of the invention.Wireless communications environment 100 includes
Mobile communications device 110～140 and service network 150, wherein mobile communications device 110～130 is in service network 150
(indicate with transversal in FIG) in signal covering scope and service network 150 can be wirelessly connected to and include adjacent service to obtain
At interior Information Mobile Service.Mobile communications device 140 is in outside the signal covering scope of service network 150, but and mobile communication
Device 110～130 is neighbouring, implies that and is in can carrying out (indicating with dotted line in FIG) in the range of radio communication.Mobile communication
Device 110～140 is all the user device possessing adjacent service function, and wherein mobile communications device 110～130 exists due to position
In the coverage of service network 150, thus can as relaying user device, in comparison, mobile communications device 140 due to
Position is outside the coverage of service network 150, so can be as far-end user device.It is to say, mobile communications device 110
～130 can as between mobile communications device 140 with service network 150 in order to the relay station providing adjacent service to communicate.Mobile
Communicator 110～140 can be that feature phone, smart mobile phone, panel computer, notebook computer or any electronics calculate dress
Put, as long as it can support the wireless communication technology that service network 150 is used.
Service network 150 is the network possessing adjacent service function, such as: long-term evolving network, Long Term Evolution strengthening net
Network or time-division long-term evolving network.Particularly, service network 150 includes access network 151 and core network 152, Qi Zhongjie
Entering network 151 is to process radio signal, support terminal wireless electricity agreement and connect MTC device 110
～130 with core network 152, and core network 152 is to perform mobile management, the checking of network-side and and public network
Interfacing with of network (such as: world-wide web).Access network 151 and core network 152 can each include that one or more network node is used
To perform above-mentioned functions.For example, access network 151 can be evolved universal terrestrial radio access network (Evolved
Universal Terrestrial Radio Access Network, E-UTRAN), it includes at least one evolved base station
(evolve Node B, eNB), such as: household type evolved base station, wide area (macro) base station, miniature (pico) base station；And core
Heart network 152 can be evolution package core (Evolved Packet Core, EPC), that includes: one's original domicile client server
(Home Subscriber Server, HSS), mobile management entity (Mobility Management Entity, MME), clothes
Business gateway (Serving Gateway, S-GW), packet data mesh network close (Packet Data Network Gateway,
PDN-GW/P-GW), the locating platform (SUPL of secure user plane location (Secure User Plane Location, SUPL)
Location Platform, SLP) and adjacent service functional node etc..
Though not illustrating, core network 152 also can be further attached to a public safety Access Layer (Access Stratum,
AS), it is in order to provide the service that public safety is relevant.For example, public safety Access Layer can be as processing great natural disaster, big
The control centre of the emergencies such as type region power-off or information report center.
Fig. 2 is the schematic diagram according to the mobile communications device described in one embodiment of the invention.Shown mobile communications device can
Extensively representative mobile communication device 110～140, it includes wireless transceiver 10, controller 20, storage device 30, display device
40 and input equipment 50.Wireless transceiver 10 is provided for the mobile communications device neighbouring with other with service network 150
Between be wirelessly transferred and receive capabilities.Particularly, wireless transceiver 10 includes that radio frequency (Radio Frequency, RF) fills
Put 11, fundamental frequency processing means 12 and antenna 13.Fundamental frequency processing means 12 is to perform fundamental frequency signal process and control
Subscriber Number card is (such as: USIM (Universal Subscriber Identity Module, USIM)
Card) communication between (not illustrating) and radio-frequency unit 11.Fundamental frequency processing means 12 can include that multiple hardware unit is to perform fundamental frequency
Signal processing, including Analog-digital Converter (analog-to-digital conversion, ADC)/digital-to-analogue conversion
(digital-to-analog conversion, DAC), gain (gain) adjustment, modulation and solution modulation and coding/decoding
Deng.Radio-frequency unit 11 can receive rf wireless signal from antenna 13, and rf wireless signal is converted to fundamental frequency signal to transfer to
Fundamental frequency processing means 12 processes further, or receives fundamental frequency signal from fundamental frequency processing means 12, and is converted to penetrate by fundamental frequency signal
Frequently wireless signal is to transmit by antenna 13.Radio-frequency unit 11 also can include that multiple hardware unit turns to perform above-mentioned radio frequency
Change, for example, radio-frequency unit 11 can include that a frequency mixer (mixer) is with penetrating that fundamental frequency signal is multiplied by wireless technology used
An oscillating carrier in Pin, wherein this radio frequency can be Long Term Evolution, Long Term Evolution reinforcement technique or time-division Long Term Evolution skill
900 megahertzs, 2100 megahertzs or 2.6 gigahertz (GHZ)s that art is used, or other radio frequencies, such as: unlicensed band (unlicensed
Band) (such as: 2.4 gigahertz (GHZ)s) or the mandate frequency range that used of other wireless technologys.
Controller 20 can be general processor, microprocessor (Micro-Control Unit, MCU), application processor or
Digital signal processors (Digital Signal Processor, DSP) etc., in order to control wireless transceiver 10 to perform and clothes
Being wirelessly transferred and receiving, read from storage device 30 or write between business network 150 and other neighbouring mobile communications devices
Enter data, transmit picture (including: word, image, image) data to display device 40 and from input equipment 50 reception input
Signal etc..Particularly, controller 20 is to coordinate to control wireless transceiver 10, storage device 30, display device 40 and defeated
Enter device 50, to perform the service persistence method of the present invention.
In another embodiment, controller 20 can be to be incorporated in fundamental frequency processing means 12, as a Baseband processor.
Storage device 30 can be memorizer (such as: random access memory (Random Access Memory, RAM), fast
Flash memory (Flash memory) or nonvolatile RAM (Non-Volatile Random Access
Memory, NVRAM) etc.), magnetic storage (such as: tape or hard disk), optical disc drive (such as: read-only optical disc
(Compact Disc Read-Only Memory, CD-ROM)) or above-mentioned combination in any, in order to store instruction set and
Application and/or the procedure code etc. of communication protocol.
Display device 40 can be liquid crystal display (Liquid-Crystal Display, LCD), light emitting diode
(Light-Emitting Diode, LED) display or electric paper display (Electronic Paper Display, EPD)
Deng, in order to provide display function.Or, display device 40 can farther include one or more touch-control sensor, in order to detectable substance
Close/the contact of part (such as: finger or pointer).
Input equipment 50 can include one or more button, keyboard, slide-mouse, Contact plate, video lens, mike and/or
Loudspeaker etc., in order to interactive with user as man-machine interface.
When it will be appreciated that the element shown in Fig. 2 only in order to provide one the example that is described, and be not used to limit
Protection scope of the present invention.
Fig. 3 A Yu 3B is according to the information to network trunk of the adjacent service user device described in one embodiment of the invention
Sequence chart.First, mobile communications device 110～130 performs line respectively and sets up program but not in order to neighbouring service network 150
Service user's device network trunk is required Radio Resource and not transporter to device synchronizing signal (step S310).
Particularly, mobile communications device 110～130 is set up program by line and is informed it to be intended to as relaying to service network 150 to make
User's device.Line sets up program can include network (attach) program and/or packet data network (Packet Data
Network, PDN) foundation of line.
Then, mobile communications device 140 performs relaying heuristic routine to find its neighbouring relaying user device (step
S320).Particularly, mobile communications device 140 is broadcasted a relaying and is explored information, and mobile communications device 110～130 is receiving
Just transporter is started in a time section to device synchronizing signal after relaying exploration information.For example, mobile communication
Device 110～130 can start a protection timer to count described time section, and if do not had before protection timer expired
Have and receive direct communication request (Direct Communication Request) information from mobile communications device 140, then stop
Only transporter is to device synchronizing signal.
In an embodiment, the relaying heuristic routine of step S320 can be the exploring mode of Mode A, as shown in Figure 4 A, and its
In, relaying exploration information be one exploration declaration (Discovery Announcement) information, and mobile communications device 110～
130 receive exploration declaration information time without replying mobile communications device 140.Mobile communications device 110～130 only need to be in response to
Receive exploration declaration information, and start protection timer and in protection timer expired before periodically transporter to device
Synchronizing signal.
In another embodiment, the relaying heuristic routine of step S320 can be the exploring mode of Mode B, as shown in Figure 4 B,
Wherein, relaying exploration information be one exploration request (Discovery Solicitation) information, and mobile communications device 110～
130 must reply an exploration when receiving exploration solicited message responds (Discovery Response) information to mobile communications
Device 140.In 4B figure, although mobile communications device 110～130 is before replying exploration echo message, just starts anti-
Protect timer and start transporter to device synchronizing signal, but, mobile communications device 110～130 also may select is replying
After exploring echo message, just start protection timer and start transporter to device synchronizing signal.It is noted that at mould
The exploring mode of formula B, mobile communications device 110～130 can distinctly determine whether it is ready as in mobile communications device 140
Continue station, the most just reply and explore echo message to mobile communications device 140.
Returning to Fig. 3 A, after step S320, mobile communications device 140 measures the device received to device synchronizing signal
Received signal strength/quality, and select from mobile communications device 110～130 there are optimal received signal strength/product
Matter person's (step S330).Particularly, the received signal strength/quality of device synchronizing signal can be come by device according to following information
Determine: received signal strength index (Received Signal Strength Indication, RSSI), signal to noise ratio
(Signal-to-Noise Ratio, SNR), adjacent channel interference (Adjacent Channel Interference, ACI),
Packet error (Packet Error Rate, PER) or bit error rate (Bit Error Rate, BER).
Afterwards, the mobile communications device that mobile communications device 140 is selected with step S330 sets up line to carry out a pair
One communication (step S340).In this embodiment, it is assumed that device synchronizing signal is had by the device that mobile communications device 110 is transmitted
Optimal received signal strength/quality, say, that selected in step S330 to be exactly mobile communications device 110.
After once the line of One-to-one communication has been successfully established, mobile communications device 110 becomes an activation
(active) relaying user device, is responsible for carrying out turning of one-way data between mobile communications device 140 and service network 150
Send.Mobile communications device 120～130 then becomes nonactivated (non-active) relaying user device.
Fig. 5 is the information sequence of the line foundation of the One-to-one communication described in the embodiment according to the present invention 3A Yu 3B figure
Figure.Mobile communications device 140 transmits always on letter solicited message to mobile communications device 110 (step S510).When receiving
Directly during communication request information, mobile communications device 110 requires wireless for mobile communications device 140 to service network 150
Resource distribution, particularly, mobile communications device 110 transmit a dispatch request (Scheduling Request, SR) information or
Information is to access network 151 (step S520), then from access for buffer status return (Buffer Status Report, BSR)
Network 151 receives and includes a up allowance (UL Grant) information (step S530) that radio-resource-configuration sets.Then, mobile
Communicator 110 and mobile communications device 140 perform checking and set up secure connection (step S540), particularly, mobile logical
Mobile communications device 140 is first initiated two-way checking by T unit 110, and then by PC5 interface, (specific definition refers to the 3rd
The specification standards book TR 23.703 worked out for partner program tissue) initiate the foundation of secure connection of the second layer.It
After, the radio-resource-configuration acquired by step S530 is optionally set band and passes in an information by mobile communications device 110
Give mobile communications device 140 (step S550), but, if mobile communications device 110 and mobile communications device 140 determine
Carry out One-to-one communication in unlicensed band, then can omit step S550.In an embodiment, information described in step S550 can be
Wireless heterogeneous networks (Radio Resource Control, RRC) reset solicited message.
Returning to Fig. 3 A, after step S340, mobile communications device 140 performs measurement and the return (step of connection state
S350).Described connection state refers to the line of the One-to-one communication between mobile communications device 140 and mobile communications device 110
State.
Measuring and an embodiment of return about connection state, as shown in Figure 6A, mobile communications device 110 transmits a survey
Amount controls (MEASUREMENT CONTROL) information to mobile communications device 140, it is desirable to mobile communications device 140 carries out line
The measurement of state.Then, mobile communications device 140 transmits the measurement return (MEASUREMENT including measurement result
REPORT) information is to mobile communications device 110.Described connection state can determine by measuring values below: receives signal strong
Degree index, signal to noise ratio, adjacent channel interference, packet error and/or bit error rate.Afterwards, by mobile communications device
140 determine that the connection state measured whether less than a predetermined threshold, is the most then initiated next by mobile communications device 140
The relaying heuristic routine of step S360.
Measuring and another embodiment of return about connection state, as shown in Figure 6B, is similar to the embodiment of Fig. 6 A, moves
Dynamic communicator 110 transmits a measuring control information to mobile communications device 140, it is desirable to mobile communications device 140 carries out line
The measurement of state.Then, mobile communications device 140 transmits and includes that a measurement reported information of measurement result is to mobile communications device
110.But, it is different from the embodiment of Fig. 6 A, afterwards, is to be determined, by mobile communications device 110, the line shape measured
State whether less than a predetermined threshold, is the most then initiated the relaying heuristic routine of next step S360 by mobile communications device 110.
Return to Fig. 3 A, after step S350, mobile communications device 110 or 140 initiate relaying heuristic routine to find
Relaying user device (step S360) near mobile communications device 140.
In an embodiment, the relaying heuristic routine of step S360 can be to be initiated by mobile communications device 140, such as Fig. 4 A
The exploring mode of shown Mode A, mobile communications device 120～130 is for exploring declaration information in response to receiving, and starts protection
Timer and in protection timer expired before periodically transporter to device synchronizing signal.Or, mould as shown in Figure 4 B
The exploring mode of formula B, mobile communications device 120～130, when receiving exploration declaration information, starts protection timer and starts
Transporter, to device synchronizing signal, is replied and is explored echo message.
In another embodiment, the relaying heuristic routine of step S360 can be to be initiated by mobile communications device 110, such as figure
Shown in 7, wherein, mobile communications device 110 is broadcasted a relaying and is explored information, and mobile communications device 120～130 is in receiving
Then start protection timer during the exploration information that continues and periodically transporter synchronizes letter to device before protection timer expired
Number.In an embodiment, information explored by described relaying can be an exploration declaration information.Though not illustrating, mobile communications device 140 also may be used
The relaying exploration information that mobile communications device 110 is transmitted can be received, and in time receiving, initiate pattern as shown in Figure 4 A
The exploring mode of A or the exploring mode of Mode B as shown in Figure 4 B, be not both, and mobile communications device 120～130 exists
Receive and protection timer and device need not be synchronized letter to device when information explored by the relaying that mobile communications device 140 transmitted
Number transmission process.
Returning to 3A figure, after step S360, mobile communications device 140 is measured the device received and device is synchronized letter
Number received signal strength/quality, and from mobile communications device 120～130, select that to have optimal reception signal strong
Degree/quality person or according to the device received to the priority level indicated by device synchronizing signal from mobile communications device 120～
Select in 130 that there is the highest priority level person's (step S370).For example, if mobile communications device 120～130 is each
From providing relay services on different frequency range, then can set different priority levels and in each being passed according to different operation frequency ranges
The device sent includes the information of priority level to device synchronizing signal, and mobile communications device 140 can first according to device to dress
Put the received signal strength/quality of synchronizing signal to select mobile communications device 120～130, if both reception signals are strong
Degree/quality is the same, selects according to its priority level the most further.
Afterwards, the mobile communications device that mobile communications device 140 is selected with step S370 sets up line to carry out a pair
One communication (step S380).In this embodiment, it is assumed that device synchronizing signal is had by the device that mobile communications device 120 is transmitted
Optimal received signal strength/quality, say, that is exactly mobile communications device 120 selected in step S370.About
The foundation of One-to-one communication line is similar to step S340, and detailed description can refer to Fig. 5, therefore do not repeats them here.
After once the line of One-to-one communication has been successfully established, mobile communications device 120 becomes the relaying of an activation
User device, is responsible for carrying out transferring of one-way data between mobile communications device 140 and service network 150.Then, mobile
Communicator 140 transmits a line interrupt requests information again to mobile communications device 110 (step S390), makes mobile communications device
110 become nonactivated relaying user device.Consequently, it is possible to mobile communications device 140 is the most successfully from mobile communications device
110 reselect to mobile communications device 120 so that it is and the data transmission/reception carried out between service network 150 can continue not
It is interrupted.
According to the embodiment of above-mentioned Fig. 3 A Yu 3B, when it will be appreciated that fill at adjacent service user of the present invention
Putting in network trunk flow process, relaying user device only need to just need transporter to synchronize device in special time section
Signal, and only just need to service network requirement when receiving the direct communication request information that far-end user device is sent
Radio-resource-configuration.Therefore, relaying user device is significantly reduced because device synchronizing signal is expended by transporter
Electric power, also improves the service efficiency of the Radio Resource of long-term evolving network simultaneously.
It is noted that about the adjacent service user device described in the embodiment of Fig. 3 A Yu 3B to network trunk stream
Journey, other not the specification specified in scope refer to the specification standards that third generation partner program tissue is worked out
Book TR 23.713 and 36.843.
Though the present invention is open as above with various embodiments, but it is only exemplary reference and is not used to limit the present invention's
Scope, any those skilled in the art, without departing from the spirit and scope of the present invention, when doing a little variation and retouching.
Therefore above-described embodiment is not limited to the scope of the present invention, and protection scope of the present invention is when regarding appended claim institute circle
The person of determining is as the criterion.
Claims (20)
1. a mobile communications device, is positioned at the signal covering scope of a service network in order to fill as adjacent service user
Put to network trunk one relaying user device, including:
One wireless transceiver, in order to perform with above-mentioned service network with the signal covering scope being positioned at above-mentioned service network outside one
Being wirelessly transferred and receiving between long distance user device；And
One controller, in order to receive a measurement report information by above-mentioned wireless transceiver from above-mentioned long distance user device, and
Indicate the connection state between above-mentioned long distance user device and above-mentioned mobile communications device low in above-mentioned measurement report information
When a predetermined threshold, transmit a relaying exploration information by above-mentioned wireless transceiver and relay user device to other, to touch
Send out above-mentioned other relaying user devices start to transmit a device to device synchronizing signal.
2. mobile communications device as claimed in claim 1, wherein controller noted above also in receive above-mentioned measurement report information it
Before, transmit a measuring control information to above-mentioned long distance user device by above-mentioned wireless transceiver.
3. mobile communications device as claimed in claim 1, wherein controller noted above also by above-mentioned wireless transceiver from above-mentioned
Long distance user device receives a line interrupting information.
4. mobile communications device as claimed in claim 1, each of other relaying user devices the most above-mentioned is more in upper
Before stating the controller above-mentioned measurement report information of reception, first foundation with a line of above-mentioned service network but does not require any wireless
Resource, the most do not transmit said apparatus to device synchronizing signal.
5. mobile communications device as claimed in claim 1, each of other relaying user devices the most above-mentioned is more in connecing
Receive the time section after above-mentioned relaying exploration information and periodically transmit said apparatus to device synchronizing signal, Yi Jiyu
Do not stop transmitting said apparatus when above-mentioned long distance user device receives always on letter solicited message in above-mentioned time section
To device synchronizing signal.
6. mobile communications device as claimed in claim 5, the one of other relaying user devices the most above-mentioned is more in reception
During to above-mentioned direct communication request information, by above-mentioned wireless transceiver to above-mentioned service network require a radio-resource-configuration with
For adjacent service user device to network trunk, and set up the line with above-mentioned long distance user device.
7. a service persistence method, it is adaptable to adjacent service user device is to network trunk and by being positioned at a service network
Performed by a relaying user device in signal covering scope, above-mentioned service persistence method includes:
A measurement report information is received from a long distance user device；And
The line shape between above-mentioned long distance user device and above-mentioned mobile communications device is indicated in above-mentioned measurement report information
When state is less than a predetermined threshold, the relaying exploration information that transmits relays user device to other, to trigger other relayings above-mentioned
User device starts to transmit a device to device synchronizing signal.
Service persistence method the most as claimed in claim 7, also include:
Before receiving above-mentioned measurement report information, transmit a measuring control information to above-mentioned long distance user device.
Service persistence method the most as claimed in claim 7, also include:
A line interrupting information is received from above-mentioned long distance user device.
Servicing persistence method the most as claimed in claim 7, each of other relaying user devices the most above-mentioned is also in upper
Before stating the controller above-mentioned measurement report information of reception, first foundation with a line of above-mentioned service network but does not require any wireless
Resource, the most do not transmit said apparatus to device synchronizing signal.
11. service persistence method as claimed in claim 7, and each of other relaying user devices the most above-mentioned is also in connecing
Receive the time section after above-mentioned relaying exploration information and periodically transmit said apparatus to device synchronizing signal, Yi Jiyu
Do not stop transmitting said apparatus when above-mentioned long distance user device receives always on letter solicited message in above-mentioned time section
To device synchronizing signal.
12. service persistence method as claimed in claim 11, and the one of other relaying user devices the most above-mentioned is more in connecing
When receiving above-mentioned direct communication request information, require a radio-resource-configuration by above-mentioned wireless transceiver to above-mentioned service network
For the use to network trunk of the adjacent service user device, and set up the line with above-mentioned long distance user device.
13. 1 kinds of mobile communications devices, the signal covering scope being positioned at a service network is outer in order to as adjacent service user
A device long distance user device to network trunk, including:
One wireless transceiver, in order to perform and above-mentioned service network and the one of the signal covering scope being positioned at above-mentioned service network
Being wirelessly transferred and receiving between relaying user device；And
One controller, is used to be measured by above-mentioned wireless transceiver low with a connection state of above-mentioned relaying user device
When a predetermined threshold, transmit a relaying exploration information by above-mentioned wireless transceiver relay user device to other, by upper
State wireless transceiver and receive one or more device to device synchronizing signal from other relaying user devices above-mentioned, and according to upper
State device to select device synchronizing signal the one of other relaying user devices above-mentioned is transmitted always on letter solicited message
To set up line.
14. mobile communications devices as claimed in claim 13, wherein controller noted above is to synchronize device according to said apparatus
One received signal strength of each of signal or quality or said apparatus are to indicated by each of device synchronizing signal
Priority level carries out the selection of other relaying user devices above-mentioned.
15. mobile communications devices as claimed in claim 13, wherein controller noted above also by above-mentioned wireless transceiver from upper
State relaying user device and receive a measuring control information, and include above-mentioned connection state by above-mentioned wireless transceiver transmission
A measurement report information to above-mentioned relaying user device.
16. mobile communications devices as claimed in claim 13, wherein controller noted above is also by above-mentioned wireless transceiver transmission
One line interrupting information is to above-mentioned relaying user device.
17. 1 kinds of service persistence method, it is adaptable to adjacent service user device is to network trunk and by being positioned at a service network
Signal covering scope outside a far-end user device performed by, above-mentioned service persistence method includes:
In time measuring the connection state with a relaying user device less than a predetermined threshold, transmit a relaying exploration information
User device is relayed to other；
One or more device is received to device synchronizing signal from other relaying user devices above-mentioned；And
Select to transmit always on to the one of other relaying user devices above-mentioned to device synchronizing signal according to said apparatus
Letter solicited message is to set up line.
18. service persistence method as claimed in claim 17, and the selection of other relaying user devices the most above-mentioned is basis
Said apparatus to a received signal strength of each of device synchronizing signal or quality or said apparatus to device synchronizing signal
The priority level indicated by each carried out.
19. service persistence method as claimed in claim 17, also include:
A measuring control information is received from above-mentioned relaying user device；And
Transmit the measurement report information including above-mentioned connection state to above-mentioned relaying user device.
20. service persistence method as claimed in claim 17, also include:
Transmit a line interrupting information to above-mentioned relaying user device.
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| US201562158631P | 2015-05-08 | 2015-05-08 | |
| US62/158,631 | 2015-05-08 |
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| CN106131884B (en) | 2019-11-19 |
| TWI577205B (en) | 2017-04-01 |
| TW201640922A (en) | 2016-11-16 |
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