CN108184222A - Network entity and method for discovering among devices suitable for network entity - Google Patents
Network entity and method for discovering among devices suitable for network entity Download PDFInfo
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Abstract
The present invention relates to a network entity and an inter-device discovery method applicable to the network entity. The network entity includes: and the transmitter is used for transmitting data. A receiver for receiving data. A processing circuit coupled to the transmitter and the receiver and configured to: receiving, via the receiver, a first cancel proximity request comprising a network level discoverer identifier, an application identifier and an application level discoverer identifier; transmitting, via the transmitter, a second cancel proximity request including the network level discoverer identifier and a network level discoverer identifier in response to the received first cancel proximity request; receiving, via the receiver, a first acknowledgement signal corresponding to the second cancel proximity request in response to the transmitted second cancel proximity request; and transmitting, via the transmitter, a second acknowledgement signal corresponding to the first cancel proximity request in response to the received first acknowledgement signal.
Description
The application is the applying date on January 5th, 2015, application No. is 201510001689.4, entitled " use
Find method between the device of family equipment and network entity " patent application divisional application.
Technical field
The present invention relates to suitable for user equipment (user equipment, UE) and network entity (network entity)
Device between (device to device, D2D) find method with using the method UE and network entity.
Background technology
When UE seeks to find or be found, it usually needs adjacent service (proximity based service,
) or D2D discovery procedures (discovery process) ProSe.ProSe discovery procedures are to pass through Evolved Packet Core
The auxiliary of (Evolved Packet Core, EPC) does not have by the auxiliary of Evolved Packet Core (EPC) to identify
Whether finder (discoverer) UE of ProSe abilities (ProSe-enabled) is adjacent to another quilt with ProSe abilities
The process of finder (discoveree) UE, wherein Evolved Packet Core (EPC) are considered as long term evolution (long
Term evolution, LTE) communication system core network.The network assistance may relate to or may not be related to evolved
Universal terrestrial access network (Evolved Universal Terrestrial Radio Access Network, E-
UTRAN).No matter when UE meets neighbouring criterion about another UE, and the UE is referred to alternatively as being adjacent to another UE.It is neighbouring accurate
Specific range or certain communication range class can be then referred at least to, and can be different for discovery procedure and any subsequent communications stage.
When ProSe discovery procedures occur in EPC levels, ProSe discovery procedures will be related to EPC so as to determining two tools
There is the neighbouring of the UE of ProSe abilities and notify its neighbouring discovery program to the UE.UE with ProSe abilities refers to support and works as
Preceding ProSe requirements and the UE [referring to 3GPP TS 32.278] of associated program.UE with ProSe abilities can also be not common
Safety (non-public safety) UE (for example, UE with business application), public safety UE or both.It is each to have
The UE of ProSe abilities may for example be based on geographic distance, wireless conditions and with a kind of range class (range class), it is described
Range class is the rough instruction of the distance in being found for ProSe.
ProSe discovery procedures can relate to different types of identifier (ID).EPC ProSe User ID is for wireless local
The identification that the EPC levels ProSe of net (wireless local area network, WLAN) direct communication has found and EPC is supported
Symbol, for uniquely identifying the UE for being directed to ProSe and registering.This identifier can be once in a while by the ProSe function weights in EPC networks
It is new to assign.ProSe functional identities are fully qualified domain name (the fully qualified domain for uniquely identifying ProSe functions
name,FQDN).Application ID is to identify the globally unique identifier of specific application.Application layer User ID is in the upper of specific application
The hereafter identifier of interior identification user.WLAN link layers ID is directly to be found for WLAN and/or the link of WLAN direct communications
Layer identity.WLAN link layers ID can be temporary (for example, temporary MAC Address) or permanent (for example, permanent MAC Address).
D2D communications, adjacent communication or ProSe communications are current third generation partner program (third generation
Partnership project, 3GPP) new technical feature being developed in the 12nd edition and the 13rd edition.It is neighbouring to find may be present
At least two Mains --- EPC levels ProSe has found that (ProSe discovery) and ProSe directly have found (ProSe
Direct discovery).Two kinds find to be complementary solution, but can also independently implement.Fig. 1 explanations are so as to processing
The exemplary network architecture that EPC levels are found.Entity can relate to the first user equipment 101 and second user equipment 102, two use
Family equipment can carry out ProSe applications or can have ProSe abilities.Entity may also refer to E-UTRAN 103.ProSe functions 104
It represents jointly by D2D the or ProSe functions of EPC network supports.E-UTRAN103 is connected to mobility management entity
(mobility management entity, MME) 105, E-UTRAN 103 can also connect directly to the ProSe functions in EPC
104.ProSe functions 104 are connected to secure user plane location platform (Secured User Plane Location
Platform, SLP) 106, wherein via secure user plane location platform (SLP) 106, can obtain or estimated location information.
ProSe functions 104 may be connected to ProSe application servers 107, can be third-party server (third party
Server) and the not intrinsic part of EPC networks.The specific description reference 3GPP technical specifications (TS) 23.303 of aforementioned entities
Description, and therefore will not repeated description.
The allusion quotation that Fig. 2 displayings are found such as the EPC levels ProSe in draft standard (for example, 3GPP TR 23.703v1.0.0)
Type call flow.Step shown in Fig. 2 will be briefly described as follows.In step s 201, it is assumed that UE A accordingly return to residing in it
Belong to public land mobile network (ProSe functions A in home public land mobile networks, Home PLMN s) into
The hand-manipulating of needle registers the UE that ProSe communicates.In step S202, UE B are to the ProSe functions of residing in its respective home PLMNs
B registered for the UE of ProSe.Similarly, in step S203 and S204, UE A and UE B are respectively to its Home PLMN s
In ProSe function A and ProSe functions B carry out ProSe application registration.In step S205, UE A make the neighbouring of UE B please
Ask the appropriate response of reception.For example, if UE B are adjacent to UE A, needle in time predefined window (time window)
Presence to UE B, UE A can obtain alarm.In response to neighbouring request, ProSe functions A will ask the position of UE A and UE B more
Newly.Location updating can be it is periodic or can based on the event triggered, or both.In order to ask the position of UE A
Update, ProSe functions A will contact SUPL location platforms (SLP) A.Similarly, in order to ask the location updating of UE B, ProSe work(
Can A will contact ProSe function B, and the location updating that ProSe functions B will transfer to ask UE B to SLP B.
In step S206, ProSe functions A receives the report of the position of UE A from SLP A.In step S207, ProSe
Function B receives the report of the position of UE B from SLP B.The position of UE A and UE B can intermittently be reported corresponding to it
ProSe functions.The update of the position of UE B can be forwarded to by ProSe functions B based on the condition set by ProSe functions A
ProSe functions A.And no matter when ProSe functions A receives the location updating of UE A and/or UE B, ProSe functions A can perform
The neighbouring analysis of the position of UE A and UE B.In step S208, when ProSe functions A detect UE A and UE B adjacent to when,
ProSe functions A will be neighbouring to UE A notices UE B and can optionally provide and directly found for WLAN and with UE B's to UE A
The auxiliary information of communication.Similarly, ProSe functions A informs about ProSe function B, and ProSe functions B transfers to notify to UE B,
It detects that UE A's is neighbouring.ProSe functions B also can optionally to UE B provide for WLAN directly find and with UE A lead to
The auxiliary information of letter.
Invention content
Therefore, the present invention relates to the D2D suitable for UE and network entity to find method and the UE and net using the method
Network entity.
In in one aspect of the invention, the present invention relates to a kind of D2D suitable for UE to find method, includes at least but not
It is limited to：D2D discovery procedures are originated and with the first window values, wherein first window values represent time window and are positive number；Transmitting packet
The first of first window values is included adjacent to discovery request；In response to described the first of transmitting cancellation thing is detected adjacent to discovery request
Part cancels the D2D discovery procedures；In response to the cancellation event detected, if first window values be reduced to it is specific
Threshold value then stops the D2D discovery procedures；And if another neighbouring discovery request is not present in the UE, in response to
The cancellation event that receives and emit and cancel the first of the D2D discovery procedures and cancel neighbouring discovery request.
In another aspect of the invention, the present invention relates to a kind of UE, include at least but are not limited to；It is wireless for emitting
The transmitter of data, for receiving the receiver of wireless data and be couple to the processing circuit of the transmitter.The processing
Circuit is configured to：D2D discovery procedures are originated and with a window values, wherein the window values represent time window and are positive number；Transmitting
Including the window values first adjacent to discovery request；In response to described the first of transmitting cancellation event is detected adjacent to discovery request
To cancel the D2D discovery procedures；In response to the cancellation event detected, if the window values are reduced to specific threshold,
Then stop the D2D discovery procedures；And if there is no another neighbouring discovery request in the UE, in response to receiving
The cancellation event and emit the cancellation for cancelling the D2D discovery procedures adjacent to discovery request.
In another aspect of the invention, the present invention relates to a kind of D2D suitable for network entity to find method, at least
Including but not limited to：Perform network assistance (network assisted) D2D discovery procedures first is received adjacent to discovery request,
Wherein described first includes the first window values adjacent to discovery request, and first window values are nonnegative number；Described in receiving
First performs neighbor estimation and user equipment (UE) state estimation adjacent to discovery request；In response to the neighbor estimation of execution
Cancel the network assistance D2D discovery procedures with the UE state estimations, wherein cancelling the network assistance D2D discovery procedures
Cancel neighbouring discovery request and transmitting canceling position report request comprising transmitting.
In another aspect of the invention, the present invention relates to a kind of network entities, include at least but are not limited to：For sending out
Penetrate the transmitter of signal, for receiving the receiver of signal and be couple to the processing electricity of the transmitter and the receiver
Road.The processing circuit is configured to：It is received via the receiver including network level finder identifier (ID), application
The first of the ID and application layer person of being found ID cancels neighbouring request；Cancel neighbouring request, warp in response to described first received
It is neighbouring to emit the second cancellation including the network level finder ID and network level person of being found ID by the transmitter
Request；Cancel neighbouring request in response to described the second of transmitting, receive via the receiver and cancel corresponding to described second
First confirmation signal of neighbouring request；And first confirmation signal in response to receiving, it is sent out via the transmitter
Penetrate the second confirmation signal for cancelling neighbouring request corresponding to described first.
In another aspect of the invention, the present invention relates to a kind of D2D suitable for network entity to find method, at least
Including but not limited to：It receives and includes the first of network level finder identifier (ID), application ID and the application layer person of being found ID
Cancel neighbouring request；Cancel neighbouring request in response to described first received and emit and include the network level finder ID
Cancel neighbouring request with the second of the network level person of being found ID；Cancel neighbouring request in response to described the second of transmitting and receive
The first confirmation signal for cancelling neighbouring request corresponding to described second；And first confirmation signal in response to receiving and
Transmitting corresponds to the described first the second confirmation signal for cancelling neighbouring request.
In order to make the features described above of the present invention and advantage it is understood that the exemplary implementation equipped with attached drawing is described in detail below
Example.It should be understood that the above general description and the following detailed description are exemplary, and it is desirable that the present invention is explained further.
However, it should be understood that this general introduction may and not contain all aspects of the invention and embodiment, therefore not should understand that
For limitation of the present invention.Moreover, protection scope of the present invention should include to those of ordinary skill in the art significantly
Improvement and modification.
Description of the drawings
The present invention includes attached drawing to further understand the present invention, and attached drawing is incorporated in this specification and forms this specification
A part.Described description of the drawings the embodiment of the present invention, and with being described below together explaining the principle of the present invention.
Fig. 1 is the exemplary network architecture found so as to processing EPC levels.
Fig. 2 is the general calling flow that EPC levels ProSe has found.
Fig. 3 is the network shown in the angle in an exemplary embodiment according to the present invention from the UE with ProSe abilities
Assist the flow chart of ProSe discovery procedures.
Fig. 4 is the ProSe discovery procedures that the UE with ProSe abilities is originated in an exemplary embodiment according to the present invention
Cancelbot.
Fig. 5 is the cancelbot of the ProSe discovery procedures that UE is originated in another exemplary embodiment according to the present invention
(cancellation procedure)。
Fig. 6 is that the EPC levels ProSe assisted by network entity one of according to an exemplary embodiment of the invention had found
The flow chart of journey.
Fig. 7 is the signaling diagram of network assistance ProSe discovery procedures in an exemplary embodiment according to the present invention.
Fig. 8 is between the device shown in the angle in an exemplary embodiment according to the present invention from user equipment (UE)
(D2D) method is found.
Fig. 9 is that (D2D) is sent out between device shown in the angle in an exemplary embodiment according to the present invention from network node
Existing method.
Figure 10 is the exemplary UE according to this exposure.
Figure 11 is the demonstration network entity according to this exposure.
Accompanying drawings symbol description
101：First user equipment
102：Second user equipment
103：E-UTRAN (E-UTRAN)
104：ProSe functions
105：Mobility management entity (MME)
106：Secure user plane location platform (SLP)
107：ProSe application servers
511：UE A
512：ProSe functions A
513：Application server
514：UE B
515：ProSe functions B
516：SLP A
517：SLP B
611：UE A
612：UE B
613：ProSe functions A
614：ProSe functions B
616：SLP A
617：SLP B
851：UE A
852：ProSe functions A
853：Application server
854：ProSe functions B
855：UE B
856：User attaching server (HSS)
857：Mobility management entity (MME)
858：SLP B
859：SLP A
1101：Processing circuit
1102：Analogue-to-digital converters/digital-analog convertor
1103：Transmitter
1104：Receiver
1105：Antenna element
1201：Processing circuit
1202：Communication protocol circuits
1203：Transmitter
1204：Receiver
LTE-Uu、PC1、PC2、PC3、PC4a、PC4b、PC5、S1、S6a：Interface
S201~S208, S401~S406, S501~S506, S601~S604, S701~S709, S801~, S812,
S901~S905, S1001~S1003, S1004a, S1004b：Step
Specific embodiment
With detailed reference to the exemplary embodiment of the present invention, the example is illustrated in the accompanying drawings.Whenever possible, phase
With component symbol in schema and description be used for represent same or similar part.
The present invention proposes the ProSe discovery procedures suitable for UE and network entity.The present invention also proposes to use the ProSe
The UE and network entity of discovery procedure.The offer of the present invention, which includes, makes the UE with ProSe abilities and the net with ProSe abilities
Network entity (for example, ProSe functions) can be based on application needs and Network status and user preference with setting and dynamically
Stop ProSe and find program.Aforementioned ProSe functions are, for example, the entity in the core networks such as EPC, and can provide neighbouring clothes
Business.The exemplary embodiment of the present invention will be also comprising with the relevant network signal of neighbor estimation being minimized and avoid and position
Update and the relevant unnecessary computing capability of neighbor estimation.
The exemplary embodiment proposed of the present invention includes two parts that can integrally or independently implement.One is to be based on
The exchanger (hand-shaking procedure) of UE, even if being designed to the window values (window in original setting
Value also dynamically allow to cancel ProSe discovery programs before) expiring.The other is modified network assistance program, is used for
Dynamically terminate ongoing ProSe discovery procedures.The solution proposed can be by using the network architecture shown in FIG. 1
To implement, but signaling procedure (signaling procedure) and the functionality of UE and ProSe functions are changed.Clearly
It says, neighbouring request mandatum cassatorium will dynamically be sent to network entity by UE A, for example, written being retouched with corresponding based on Fig. 3 to Fig. 5
The ProSe functions of stating.By using the cancellation signaling between UE and the network entity such as ProSe functions and location server or
Suitable parameter, UE can effectively terminate ongoing ProSe discovery procedures.
Fig. 3 is that the network assistance ProSe shown in the angle in an exemplary embodiment according to the present invention from UE had found
The flow chart of journey.In step S401, after receiving starting (initiate) ProSe and finding the event triggering of program, UE
Network entity (for example, ProSe function 104 of Fig. 1) of the neighbouring request to network will be emitted.For example, it is opened in the user of UE
Event triggering occurs when dynamic or restarting ProSe applications or ProSe related applications.UE is in " window " value institute of the neighbouring request of starting
In a period of instruction, whether neighbouring request is neighbouring or possible neighbouring for detecting another D2D UE with ProSe abilities.It is neighbouring
Request (for example) can be consistent with the version of such as LTE specifications such as TR 23.703v1.0.0.After neighbouring request is received, network
Entity, such as ProSe functions 104 can originate ProSe and find program.Neighbouring request may include estimated window values, so that
Before window values are expired, neighbouring request can keep effective, and the startup and maintenance of position report also can be during indicated by window values
It is carried out.
In step S402, before window values are expired, UE judges whether that receiving any terminate asks, for example, from application layer
The termination for finding program to terminate ProSe or finding program by completing ProSe to trigger is asked.It please if not receiving termination
It asks, then in step S403, as long as window values are not yet expired, UE continuously will wait for neighbouring response (Proximity from network
Response) or back to step S402, UE will wait for termination to ask from application layer.Neighbouring response may include arbitrary value, and can
It is consistent with current LTE specification (such as TR 23.703v1.0.0).If termination request is received in step S402,
In step S404, whether UE expires determining window values.If window values have expired, ProSe has found EP (end of program).If window values are still
Not expired, then in step S405, UE may be determined whether are another effectively neighbouring request from another application or UE
Have received another trigger event into ProSe discovery procedures.If not yet receiving another trigger event or neighbouring request,
Then in step S406, UE will signal neighbouring request of the network entity cancellation to ProSe functions.Otherwise, if really
Surely another trigger event or neighbouring request are had received, then the process continues in step S403.It is carried as shown in Figure 3
The ProSe gone out has found that the cancelbot of program can be according to Fig. 4, Fig. 5 and at least two exemplary implementations of its correspondence written description
Example is implemented.
Fig. 4 is the cancelbot of the ProSe discovery procedures that UE is originated in an exemplary embodiment according to the present invention.Fig. 4
Cancelbot may correspond to the step S406 of Fig. 3.However, it will be apparent to those skilled in the art that, the cancellation of Fig. 4
Program can be independently of the discovery procedure in Fig. 3, therefore can not correspond to step S406.In step S501, UE A 511 emit
First cancels neighbouring request (Cancel Proximity Request), will be routed to network entity, such as the ProSe of EPC
Function A 512.First cancels neighbouring request containing the parameter for being not limited to EPSID_A, application ID, ALUID_A and ALUID_B etc..
Application ID identifies third-party application server platform or the application server (App servers) 513 of Fig. 4.EPSID_A is UE A
511 ProSe subscribers ID.ALUID_A and ALUID_B is the application layer User ID of UE A 511 and UE B 514 respectively.It is connecing
After receiving the neighbouring request of the first cancellation, ProSe discovery procedures are handled to be cancelled by ProSe functions A 512.
In step S502, cancel neighbouring request in response to first received, ProSe functions A 512 cancels second
Neighbouring request is emitted to ProSe functions B 515, to notify ProSe functions B 515 and then notice SLP A 516 and SLP B
The 517 neighbouring requests of cancellation D2D originated by UE A 511.The neighbouring request of second cancellation, which contains, is not limited to EPSID_A and EPSID_B
Parameter.EPSID_B is the ProSe subscribers ID of UE B 514.In step S503, cancel in response to second received neighbouring
Request, ProSe functions A 512 is by the first canceling position service (Location Services, LCS) position report request
(Location Reporting Request) is emitted to SLP A 516 to cancel the report of the position of UE A 511.Similarly,
In step S504, the second cancellation LCS positions report request is emitted to SLP B 517 to cancel UE by ProSe functions B 515
The position report of B 514.In step S505, receiving from the neighbouring requests of the second cancellation emitted of ProSe functions A 512
Afterwards, ProSe functions B 515 cancels neighbouring request confirmation (Cancel Proximity Request Ack) by first and is emitted to
ProSe functions A 512 for confirmation second cancels the reception of neighbouring request signal.Cancel neighbouring ask in response to first received
Confirmation is asked, ProSe functions A 512 cancels second is emitted to UE A 511 to notify to walk to UE A511 adjacent to request confirmation
The first confirmation for cancelling neighbouring request signal is confirmed in rapid S501.
Fig. 5 is the cancelbot of the ProSe discovery procedures that UE is originated in another exemplary embodiment according to the present invention.Figure
5 cancelbot may correspond to the step S401 of Fig. 3 or step S406.In step s 601, UE A 611 by first it is neighbouring please
It asks and is emitted to ProSe functions A613.First neighbouring request containing be not limited to EPSID_A, application ID, ALUID_A, ALUID_B,
" window ", " range " (range class), " position of A " (position of UE A 611) and the ginseng of " WLAN indicators " optionally selected
Number.EPSID_A, application ID, ALUID_A, ALUID_B and " range " are as previously described." window " value is nonnegative value, in " window " Zhi Suo circle
Determine or dispose (handle) adjacent service about the interior permission network of specified time interval that " window " value is defined.In this time interval
Interior, network can track the position of UE and continue ProSe functions B and ProSe functions A, UE B, UE A and other related realities in real time
Interactive program between body." window " value may be configured as predetermined value to notify to cancel or further to limit ProSe discovery procedures
Duration.For example, window values can be zero (" window "=0), and such as performing step S404, ProSe discovery will be effectively revoked.
" WLAN indicators " is foregoing WLAN link layers ID.
In step S602, in response to the first neighbouring request received, ProSe functions A613 sends out the second neighbouring request
It is mapped to ProSe functions B 614.ProSe functions B 614, which contains, is not limited to EPSID_A, EPSIB_B, " window ", " position of A " (UE
The position of A 611) and the parameter of " WLAN indicators " optionally selected." window " value may be configured as predetermined value to notify to cancel
Or further limit the duration of ProSe discovery procedures.In step S603, in response to the second neighbouring request received,
First cancellation LCS positions report request is emitted to SLP B 617 to cancel about UE B's 612 by ProSe functions B 614
The update of position report.Similarly, in step s 604, in response to the receive first neighbouring request, ProSe functions A613 will
Second cancellation LCS positions report request is emitted to SLP A616 to cancel the update of the position of UE A611 report.
Network side can also be responsive to ProSe be assisted to find cancelbot in the neighbouring request received from UE.Substantially, it rings
The neighbouring request with initial window values that Ying Yucong UE are received, network entity (such as ProSe functions) may be in response to what is detected
Special parameter and terminate ProSe discovery procedures.ProSe functions will then perform down-stream to be based on comprising paging
(paging) UE connection status or recorded in MME or from position and/or application server obtain UE subdistrict position or
Range class and obtain the state of UE and neighbouring.ProSe functions will then terminate neighbouring discovery procedure and to other ProSe functions and
Location server notifies termination procedure.ProSe functions can also be emitted to UE and to these UE by the way that neighbouring request is cancelled message
Notice is cancelled.By aforementioned network proposed by the present invention auxiliary ProSe find cancelbot details further by Fig. 6 to Fig. 7 with
It corresponds to written description explanation.
Fig. 6 is the EPC level ProSe discovery procedures assisted in an exemplary embodiment according to the present invention by network entity
Flow chart.Network entity can be independent community (stand-alone entity) with one group of particular functionality or can
It is considered as be embedded in other entities of core network one group of particular functionality.Network entity can be in (for example) EPC
ProSe functions.In step s 701, in response to receiving neighbouring request of the UE A receptions to UE B, ProSe work(by ProSe functions A
Energy A will determine whether " window " value in neighbouring request has been set to particular value." window " value can be set by UE, and if ProSe is sent out
Existing process will terminate, then particular value may be configured as zero (" window "=0).If ProSe functions A has determined that " window " value is set as zero,
Then in step S704, ProSe cancellation requests are emitted to the ProSe functions B corresponding to UE B by ProSe functions A.In step
In S705, cancellation request will be also sent to corresponding to the location server A (LCSA) of UE A and UE B and location server B
(LCSB) it is updated to cancel follow-up location.
If in step s 701, " window " value is not yet set as zero, then in step S702, such as ProSe functions A or
The network entities such as ProSe functions B will update " window " value.In step S703, after " window " value is updated, ProSe functions A and/
Or ProSe functions B will obtain the state of connection of UE B and the estimated position of UE B.In step S706, ProSe functions
A and/or ProSe functions B by based on the initial relative distance (that is, range) between (for example) UE A and UE B or based on UE A and
UE B are located in identical or different community (cell) and determine whether UE A and UE B are neighbouring in the period indicated in " window " value
Or whether it is estimated as neighbouring.If being determined as neighbouring by UE A and UE B or being estimated as generally adjacent, will then perform
Step S707；Otherwise, it will be changed to then perform step S704.If UE A and UE B are determined as it is neighbouring, in step S707
In, whether determining UE B are connected to network by ProSe functions A and/or ProSe function B.If UE B have been connected, in step
In S708, ProSe function A and/or ProSe functions B will perform follow-up neighbouring requestor.If UE B are not connected with, in step
In rapid S709, whether ProSe functions A and/or ProSe function B has disconnected determining UE B.If UE B are determined as breaking
It opens, then will perform step S704.Otherwise, if not being determined as disconnecting by UE B, ProSe function A and/or ProSe functions B will
(page) UE B are paged in step S710 and then perform step S708.
Fig. 7 is the signaling diagram of network assistance ProSe discovery procedures in an exemplary embodiment according to the present invention.In step
In S801, UE A851 transmittings, which contain, is not limited to EPSID_A, application ID, ALUID_A, ALUID_B, " window ", " range ", " position of A
Put " (position of UE A) and the first of the parameter of " WLAN indicators " the neighbouring request for optionally selecting.The description of these parameters
It is identical with foregoing description.In step S802, in response to the first neighbouring request received, ProSe functions A852 can will contain
The mapping request (Map Request) for being not limited to the parameters such as ALUID_A and ALUID_B is sent to ProSe application servers 853,
So that application server 853 is asked to provide EPC ProSe subscriber ID and the ProSe functional identities (PFID) of target UE B 855.
ProSe functions A 852 will store application layer User ID (ALUID_A and ALUID_B), until the execution of neighbouring alarm program
Or until neighbouring request keep effective time window it is expired until.
Hereafter, application server 853 will check that the specific ProSe of application from UE B 855 permits ensuring to have allowed
UE A 851 have found UE B 855.When in this situation, in step S803, application server 853, which will contain, to be not limited to
The mapping response (Map Response) of the parameters such as EPSID_B and PFID_B is sent to ProSe functions A 852, wherein PFID_B
ProSe functional identities for ProSe functions B 854.In step S804, ProSe functions A 852 will be based on the first neighbouring request
Second neighbouring request is transmitted to ProSe functions B 854.Second neighbouring request containing be not limited to EPSID_A, EPSIB_B, " window ",
" position of A " (position of UE A 851) and the parameter of " WLAN indicators " optionally selected.
In step S805, ProSe functions B 854 can perform neighbor estimation (proximity estimation).Citing
For, based on the EPSID_B received in step S804, ProSe functions B854 can retrieve subscriber's record of UE B 855.Citing
For, ProSe functions B 854 can be asked via user attaching server (Home Subscriber Server, HSS) 856
The position finally known of UE B 855, and realize UE position enquirings.In step S806, ProSe functions B 854 can also pass through
Emit the status request containing the parameter for being not limited to UE B ID (it is the ID of UE B 855) to mobility management entity (MME)
857 obtain the connection status of UE B 855.In response to the status request message of transmitting, ProSe functions B 854 will be from MME
857 receive the condition responsive of the ID containing UE B 855.Condition responsive may indicate that UE connection status, for example, idle state, separation
State and active state.
By ProSe functions in last known position, step S804 based on the UE B 855 obtained via HSS 856
The connection status of UE B855 in the position and window values and step S807 of the UE A 851 that A 852 is provided, in step S808,
ProSe functions B 854 will perform neighbor estimation and UE connection status decisions.Assuming that ProSe functions B 854 has determined that UE A 851
Mutually adjacent or UE B 855 it can not possibly be disconnected or can not possibly connect in requested time window with UE B 855, then
ProSe functions B 854 can determine that terminating ProSe finds program.In step S809, ProSe functions B 854 can be by that will cancel
LCS positions report request is sent to SLP B 858, to cancel the update for the position that UE B 855 are carried out by SLP B 858.
In step S810, the neighbouring request of the cancellation with appropriate cause value can be emitted to ProSe A by ProSe functions B 854
852, to notify ProSe discovery procedures that will be cancelled to ProSe functions A 852.In response to the neighbouring request of cancellation received
Message, in step S811, ProSe functions A 852 will cancel LCS positions report request and be emitted to SLP A 859 to cancel
The update of the position of UE A 511 carried out by SLP A 859.In step S812, ProSe functions A 852, which will have, is equal to UE
The neighbouring request of cancellation of value of the reason of state is emitted to UE A 851 to notify UE A that 851 ProSe discovery procedures are taken
Disappear.
From between the proposed device of the angle of user equipment (UE) general introduction in Fig. 8 exemplary embodiments according to the present invention
(D2D) method is found.In step S901, UE starting D2D discovery procedures simultaneously have a window values, wherein the window values represent the time
Window and for positive number.In step S902, UE emits include at least described window values first adjacent to discovery request.In step S903
In, UE adjacent to discovery request detects a cancellation event (cancellation event) to cancel in response to the first of transmitting
D2D discovery procedures.Cancellation event may be from producing by the hardware trigger of the hardware component starting of UE or by the application layer of (for example) UE
Raw software triggering.In step S904, in response to the cancellation event detected, if the window values are reduced to specific threshold,
Then UE stops D2D discovery procedures.In step S905, if there is no another neighbouring discovery request in UE, UE in response to
The cancellation event that receives and emit the cancellation for cancelling D2D discovery procedures adjacent to discovery request.
Described first can be emitted to the network entity in Evolved Packet Core (EPC) network adjacent to discovery request.It is described
Emit to cancel may include emitting adjacent to discovery request being used as clear request and having and be not limited to network level identifier (ID), service
The cancellation of the parameter of device ID, application layer finder ID and/or the application layer person of being found ID is adjacent to discovery request.The transmitting is cancelled
Neighbouring discovery request may include that transmitting is sent out with window values, network level ID, server ID, the application layer for being not limited to a predetermined value
The second of the parameters such as existing person ID, the application layer person of being found ID, range class and finder's location information cancels neighbouring discovery request.Before
Zero can be (for example) set as by stating window values.Described second parameter for cancelling neighbouring discovery request can also include WLAN (WLAN)
Link layer ID.
The method of Fig. 8 also may include the cancellation event in response to detecting and from network entity etc. (detect) to be detected neighbour
Nearly response and the network entity out of Evolved Packet Core (EPC) network, which receive to have, includes UE reason states (cause
Status the third of parameter) cancels neighbouring discovery request.
Fig. 9 is summarized one of according to an exemplary embodiment of the invention from the angle of network entity between proposed device
(D2D) method is found.In step S1001, the neighbouring discovery that network entity receives execution network assistance D2D discovery procedures please
It asks, the neighbouring discovery request includes an at least window values.In step S1002, network entity is in response to the neighbouring hair that receives
It now asks and performs neighbor estimation and user equipment (UE) state estimation.In the step s 1003, based on being held in step S1002
Row neighbor estimation and the result network entity of UE state estimations cancel network assistance D2D discovery procedures.Based in step S1003
In, network entity cancels network assistance D2D discovery procedures, and network entity cancels neighbouring find by emitting in step S1004a
It asks and by emitting canceling position report request in step S1004b.
The method of Fig. 9 can also comprising receiving second adjacent to discovery request, second included adjacent to discovery request be set as zero or
Less than the second window values of the value of initial window values and cancellation network assistance D2D discovery procedures.The network entity can be evolution
ProSe functions in type block core (EPC), and according to a version of third generation partner program (3GPP) specification
(version) it operates.Aforementioned execution neighbor estimation and user equipment (UE) state estimation may include：Obtain finder
(discoverer) the first neighbor information；The second neighbor information of the acquisition person of being found (discoveree)；And based on
One neighbor information and the second neighbor information and determine whether finder and the person of being found neighbouring within the window values period or whether are estimated
It is calculated as neighbouring.
The method of Fig. 9 can be also comprising the UE states for obtaining the person of being found, for example, idle state, active state and and network
The state of separation, and the state based on the person of being found and determine whether cancel network assistance D2D discovery procedures.The acquisition is sent out
Now the UE states of person may include status request being emitted to mobility management entity (MME), and wherein status request includes being found
Person ID；And the condition responsive of the UE states of the instruction person of being found is received from MME.The method of Fig. 9 can also have packet comprising reception
The cancellation for including the parameters such as network level identifier (ID), server ID, application layer finder ID and the application layer person of being found ID is adjacent
Nearly request.
Figure 10 is demonstration UE according to the present invention.UE at least containing (but not limited to) processing circuit 1101, is couple to
Analog to digital (analog-to-digital, A/D) converter/digital-to-analog (digital-to-analog, D/A) converter
1102nd, transmitter 1103, receiver 1104 and one or more antenna elements 1105.Transmitter 1103 and receiver
1104 wirelessly emit down link signal and receive uplink signal.Transmitter 1103 and receiver 1104 can also be held
Row operation such as low noise amplification, impedance matching, mixing, up-conversion or down coversion, filtering, amplification.(A/D)/(D/A) it converts
Device 1102 is configured to during uplink signal is handled and is converted to digital signals format and in downlink from analog signal format
During link signal processing analog signal format is converted to from digital signals format.Processing circuit 1101 is configured to processing number
It signal and performs foregoing example embodiment (especially Fig. 3 to Fig. 6 and the corresponding written descriptions of Fig. 8) according to the present invention and is carried
The D2D gone out has found the program of method.It is compiled moreover, processing circuit 1101 can optionally be couple to non-transitory storage media with storing
Range code, device configuration, code book (codebook), buffered or permanent data etc..The function of processing circuit 1101 can lead to
It crosses and is implemented using programmable units such as such as microprocessor, microcontroller, dsp chip, FPGA.The function of processing circuit 1101
It can also be implemented with independent electronic or IC, and may be implemented in the net of hardware or software by the function that processing circuit 1101 performs
In domain.
Figure 11 is demonstration network entity according to the present invention.Demonstration network entity can be the ProSe work(in EPC cores
Can, and include at least but be not limited to：Processing circuit 1201, is couple to communication protocol circuits 1202, and communication protocol circuits
1202 are couple to transmitter 1203 and receiver 1204.Transmitter 1203 and receiver 1203 are modulated for transmitting and receiving
(modulated) signal, the modulated signal can be RF wireless signals, optical signalling or the letter sent via cable
Number.Communication protocol circuits 1202 can be independently of processing circuit 1201 or for processing circuit 1201 intrinsic part, and number is disappeared
Breath is converted to and the form of the various interface compatibilities such as PC2, PC3, PC4, PC4x.Processing circuit 1201 is configured to processing number
Word signal and perform foregoing example embodiment (especially Fig. 4 to Fig. 7 and the corresponding written descriptions of Fig. 9) according to the present invention
The D2D proposed has found the program of method.Moreover, processing circuit 1201 can optionally be couple to non-transitory storage media to deposit
Store up programming code, device configuration, code book, buffered or permanent data etc..The function of processing circuit 1201 can be by using
Such as the programmable units such as microprocessor, microcontroller, dsp chip, FPGA are implemented.The function of processing circuit 1201 also can be used
Independent electronic or IC are implemented, and the function of being performed by processing circuit 1201 also may be implemented in the domain of hardware or software
It is interior.
In view of foregoing description, the present invention is suitable for wireless communication system, and the needs and network that can be applied based on ProSe
Situation and user preference dynamically stop ProSe and find program with setting.By that will determine that relevant network is believed with neighbouring
Order be minimized and avoid with the relevant unnecessary computing capability of location updating and neighbor estimation, can reduce network load and
The efficiency of network can be improved.
Element, action or instruction in the detailed description of the revealed embodiment of present application should not be construed as to this hair
It is absolute key or necessary for bright, unless explicitly described.Moreover, as used herein, word " one " also may be used
Include more than one project.If being intended to mean that only one project, term " single " or similar language will be used.In addition, such as this
Any one of used in text, term before the list of multiple projects and/or multiple project kinds " " wish comprising institute
State project and/or project kind individually or combine other projects and/or other project kinds " any one of ", " in appoint
What is combined ", " in any number of " and/or " in multiple any combinations ".In addition, as used herein, term " collection
Close " wish, comprising any quantity project, to include zero.In addition, as used herein, term " quantity " is wished comprising any
Quantity includes zero.
It will be understood by those skilled in the art that without departing from the scope or spirit of the invention, it can be to institute
The structure of embodiments of the disclosure is carry out various modifications and is changed.In view of the foregoing, it is desirable to which the present invention covers the modification of the present invention
And variation, as long as the modifications and variations are fallen within the scope of the appended claims.
The cross reference of related application
Present application advocate No. 61/926,927 United States provisional application filed in 13 days January in 2014,2014 years 12
No. 14/578,505 US application case filed in the moon 22 and No. 103145941 Taiwan Shen filed in 27 days December in 2014
Please case priority.The full content of above-mentioned patent application case is hereby incorporated herein by reference and forms this specification
A part.
Claims (10)
1. a kind of network entity, including：
Transmitter, for emitting data；
Receiver, for receiving data；
Processing circuit is couple to the transmitter and the receiver and is configured to：
It receives via the receiver and knows including network level finder identifier, application identifier and the application layer person of being found
First not accorded with cancels neighbouring request；
Cancel neighbouring request in response to described first received, emit via the transmitter and sent out including the network level
The neighbouring request of the second cancellation of existing person's identifier and the network level person's of being found identifier；
Cancel neighbouring request in response to described the second of transmitting, received via the receiver and cancel neighbour corresponding to described second
The first confirmation signal closely asked；
And first confirmation signal in response to receiving, emit via the transmitter and cancel corresponding to described first
Second confirmation signal of neighbouring request.
2. find method between a kind of device suitable for network entity, including：
Receive the first cancellation neighbour for including network level finder identifier, application identifier and the application layer person's of being found identifier
Nearly request；
Cancel neighbouring request in response to described first received and emit and include the network level finder identifier and net
The second of the network layers grade person's of being found identifier cancels neighbouring request；
Cancel neighbouring request in response to described the second of transmitting and receive and correspond to described second and cancel the first of neighbouring request really
Recognize signal；And
Emit the second confirmation for cancelling neighbouring request corresponding to described first in response to first confirmation signal received
Signal.
3. find method between the device according to claim 2 suitable for network entity, which is characterized in that further include：
Cancel neighbouring request the first canceling position report signal of transmitting later emitting described second.
4. find method between the device according to claim 3 suitable for network entity, which is characterized in that further include：
Emit the second canceling position report signal after the first canceling position report signal is emitted.
5. find method between the device according to claim 2 suitable for network entity, which is characterized in that the network is real
Body is the adjacent service function in Evolved Packet Core network.
6. find method between the device according to claim 3 suitable for network entity, which is characterized in that receive described the
One, which cancels neighbouring request, includes cancelling neighbouring request from user equipment reception described first.
7. find method between the device according to claim 6 suitable for network entity, which is characterized in that described first takes
The position report that report signal cancels the user equipment is put in digit absorption.
8. find method between the device according to claim 2 suitable for network entity, which is characterized in that transmitting described the
The neighbouring request of two cancellations includes the described second cancellation being emitted to adjacent to request another neighbouring in Evolved Packet Core network
Service function.
9. find method between the device according to claim 8 suitable for network entity, which is characterized in that receive described the
Another adjacent service function that one confirmation signal is included out of described Evolved Packet Core network receives described first really
Recognize signal.
10. find method between the device according to claim 6 suitable for network entity, which is characterized in that described in transmitting
Second confirmation signal includes second confirmation signal being emitted to the user equipment.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461926927P | 2014-01-13 | 2014-01-13 | |
| US61/926,927 | 2014-01-13 | ||
| US14/578,505 US9288656B2 (en) | 2014-01-13 | 2014-12-22 | Device to device discovery method for user equipment and network entity and user equipment and network entity using the same |
| US14/578,505 | 2014-12-22 | ||
| TW103145941A TWI552561B (en) | 2014-01-13 | 2014-12-27 | Device to device discovery method for user equipment and network entity and user equipment and network entity using the same |
| TW103145941 | 2014-12-27 | ||
| CN201510001689.4A CN104780497B (en) | 2014-01-13 | 2015-01-05 | Inter-device discovery method for user equipment and network entity |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510001689.4A Division CN104780497B (en) | 2014-01-13 | 2015-01-05 | Inter-device discovery method for user equipment and network entity |
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| CN108184222A true CN108184222A (en) | 2018-06-19 |
| CN108184222B CN108184222B (en) | 2020-10-27 |
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| CN201810101372.1A Active CN108184222B (en) | 2014-01-13 | 2015-01-05 | Network entity and method for discovering among devices suitable for network entity |
| CN201510001689.4A Active CN104780497B (en) | 2014-01-13 | 2015-01-05 | Inter-device discovery method for user equipment and network entity |
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| US20170339688A1 (en) * | 2016-05-17 | 2017-11-23 | Industrial Technology Research Institute | Method of network slicing and related apparatuses using the same |
| CN113132985A (en) * | 2019-12-30 | 2021-07-16 | 华为技术有限公司 | Communication method and device |
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| CN108184222B (en) | 2020-10-27 |
| CN104780497B (en) | 2018-10-19 |
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