CN105992314B - The method and user's equipment of retransmitting message - Google Patents
The method and user's equipment of retransmitting message Download PDFInfo
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- CN105992314B CN105992314B CN201510084285.6A CN201510084285A CN105992314B CN 105992314 B CN105992314 B CN 105992314B CN 201510084285 A CN201510084285 A CN 201510084285A CN 105992314 B CN105992314 B CN 105992314B
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- timer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention proposes the method and user's equipment of a kind of retransmitting message, is suitable for carrying out proximity service discovery process.User's equipment includes transceiver and processor.Transceiver is to transmit and receive wireless signal.Processor couples transceiver, and is configured to execute the following steps.First message by transceiver transmission for the authorization requests of proximity service, and start the first timer.If not passing through transceiver yet when the first timer expires receives second message in response to first message, start the second timer.Before the second timer expires, first message is not transmitted by transceiver.The present invention can effectively save the battery consumption of user's equipment and reduce network flow burden.
Description
Technical field
The invention relates to a kind of proximity service (proximity service, abbreviation ProSe) technologies, and especially
About the method and user's equipment of a kind of retransmitting message for proximity service discovery (discovery) process.
Background technique
In recent years, with the fast development of mobile communication technology and intelligent handhold device, the mobile broadband users in the whole world with
And exponential type growth is also presented in mobile data flow.However, the mobile broadband users of quick-fried increasing and data traffic but cause to move
Communication network faces the problems such as spectrum efficiency, frequency utilization and network coverage.Therefore, in third generation partner program
Next generation of (Third Generation Partnership Project, abbreviation 3GPP) is (for example, forth generation (4G),
Five generations (5G)) in wireless communication technique, solution and Discussion on Technology are just proposed regarding to the issue above, wherein device is to device
(device-to-device, abbreviation D2D) communication technology is one of the technology given priority to.
In traditional mobile communications network, users' equipment such as smart phone, tablet computer (user
Equipment, abbreviation UE) it needs to transmit voice and data-signal by core network (core network).And D2D technology is logical
It crosses adjacent to (proximity) device exploration (discovery) and direct communication (direct communication), and without
Data are transferred by core network, to reach network shunt (offload), suitable service (Location-Based Service, letter
Claim LBS) and other effects, to bring the commercial value of innovation for telecom dealer (operator).
Summary of the invention
The present invention provides a kind of method of retransmitting message and user's equipment passes through during proximity service discovery
Start additional timer, and do not retransmit message before this timer expires, to avoid excessive message is retransmitted.
A kind of method that the present invention proposes retransmitting message is suitable for user's equipment and carries out proximity service discovery process, this
Method includes the following steps.In response to transmitting the first message of the authorization requests for proximity service, start the first timer.If
It does not receive the second message in response to first message yet when the first timer expires, then starts the second timer, wherein
Before second timer expires, first message is not transmitted.
The present invention proposes a kind of user's equipment, is suitable for carrying out proximity service discovery process.User's equipment includes receiving
Send out device and processor.Transceiver is to transmit and receive wireless signal.Processor couples transceiver, and is configured under execution
Column step.First message by transceiver transmission for the authorization requests of proximity service, and start the first timer.If
Do not pass through transceiver when one timer expires yet and receive second message in response to first message, then starts the second timer.
Before the second timer expires, first message is not transmitted by transceiver.
Based on above-mentioned, the processor of the embodiment of the present invention receives and disappears in response to first in the first timer Shi Ruowei that expires
The second message of breath then starts the second timer, and does not retransmit first message before the second timer expires.Whereby, it uses
Person's equipment just can be reduced the number retransmitted in the unit time, bear to reduce the power consumption of user's equipment and reduce network
It carries.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and it is detailed to cooperate attached drawing to make
Carefully it is described as follows.
Detailed description of the invention
Fig. 1 is the schematic diagram that one embodiment of the invention illustrates a kind of communication system；
Fig. 2 is the block diagram that one embodiment of the invention illustrates user's equipment；
Fig. 3 is the method flow diagram that one embodiment of the invention illustrates a kind of retransmitting message；
Fig. 4 is the interaction flow of the embodiment of the present invention announced in request process between user's equipment and proximity service function
Figure.
Description of symbols:
100: communication system；120: base station；
110,110a, 110b: user's equipment；130: core network；
131: mobility management entity；133: home subscriber servomechanism；
135: proximity service function；137: gateway；
139: grouped data network gateway；
S310~S330, S410~S470: step.
Specific embodiment
In wireless communication protocol, service request is to service providing end and service providing end responds this for the transmission of user's equipment
Service request is general common (hand shaking) process of shaking hands.And if user's equipment does not receive service request
When response, then would generally retransfer service request.Accordingly, in order to reduce user's equipment power consumption and reduce signaling
(signaling) flow load, proximity service (ProSe) heuristic process (for example, announce request process (announce
Request procedure)) in, the embodiment of the present invention proposes two timers, and the starting of the first timer is to react on transmission
The first message (for example, exploring request (DISCOVERY_REQUEST)) of authorization requests for ProSe, and the second timer
Starting be to react on the response for not receiving first message when the first timer expires yet (for example, probe response
(DISCOVERY_RESPONSE)), and before the second timer expires, first message is not retransmitted.Whereby, user's equipment is just
The number for retransmitting first message can be reduced, and uses reduction power consumption and signaling traffic load.It is set forth below to meet the present invention
Spirit multiple embodiments, appropriate adjustment can be carried out to these embodiments according to its demand using the present embodiment person, and not only
The content being limited in described below.
Fig. 1 is the schematic diagram that one embodiment of the invention illustrates a kind of communication system.Fig. 1 is please referred to, communication system 100 includes
User's equipment 110, base station 120 and core network 130.It should be noted that only with two user's equipment in Fig. 1
For 110a, 110b and a base station 120, but not limited to this.
User's equipment 110 can indicate various embodiments, such as may include (but being not limited to) movement station, advanced movement station
(advanced mobile station, abbreviation AMS), servomechanism, user terminal, desktop computer, laptop, network computer,
Work station, personal digital assistant (personal digital assistant, abbreviation PDA), tablet PC (personal
Computer, abbreviation PC), scanner, telephone device, pager (pager), camera, TV, handheld video game device,
Music apparatus, wireless sensor etc..
Fig. 2 is the block diagram that one embodiment of the invention illustrates user's equipment 110, and user's equipment 110 can be at least by such as
Function element illustrated by Fig. 2 indicates.User's equipment 110 can include at least (but being not limited to) transceiver 113, simulation to number
(A/D)/number to simulation (D/A) converter 114, processor 116, the storage element 115 optionally selected and one or more
Antenna element 112.Transceiver 113 is wirelessly transmitted downlink (downlink) signal and receives uplink (uplink) letter
Number.Transceiver 113 also can be performed such as low noise amplification, impedance matching, mixing, raising frequency or frequency reducing conversion, filtering, amplification and its
Similar operation.Simulation to digital (A/D)/number is handled to simulation (D/A) converter 114 in uplink signal
Period is converted to digital signals format from analog signal format, and turns during down link signal processing from digital signals format
It is changed to analog signal format.
Processor 116 is configured to processing digital signal and the process (example of execution exemplary embodiments according to the present invention
Such as, ProSe heuristic process).In addition, processor 116 is optionally coupled to storage element 115 to store procedure code, device group
State, code book (codebook), buffering or permanent data, and also can record the multiple modules that can be executed by processor 116.Place
The function of managing device 116 can be by using such as microprocessor, microcontroller, Digital Signal Processing (digital signal
Processing, abbreviation DSP) chip, field programmable gate array (Field Programmable Gate Array,
Abbreviation FPGA) etc. programmables units implement.The function of processor 116 can also use independent electronic or integrated circuit
(integrated circuit, abbreviation IC) is implemented, and processor 116 can also use hardware or software implementation.
In addition, user's equipment 110 of the embodiment of the present invention is the electronics dress that proximity services enable (ProSe-enabled)
It sets, that is, user's equipment 110 can carry out e.g. exchange ProSe control information, unlatching and service enable user with other proximities
The proximity service of equipment directly explores (ProSe Direct Discovery) process, carries out the functions such as ProSe direct communication.
Base station 120 can be expressed as various embodiments, such as may include (but being not limited to) evolved node B (Evolved
Node B, abbreviation eNB), family expenses evolved node B (HeNB), advanced base station (advanced base station, referred to as
ABS), based transceiver system (base transceiver system, abbreviation BTS), access point, household base station, repeater
(relay), scatterer (scatterer), transponder (repeater), intermediate node, intermediary (intermediary) and/or
Satellite-based communication base station.
Core network 130 can be Evolved Packet Core (Evolved Packet Core, abbreviation EPC) network or its
The core network of his third generation (3G), forth generation (4G) or even the 5th generation (5G) communication technology.Core network 130 can include at least
131, home subscriber servo (but being not limited to) mobility management entity (Mobility Management entity, abbreviation MME)
Device (Home Subscriber Server, abbreviation HSS) 133,135, service network proximity service function (ProSe function)
Close (Serving Gateway, abbreviation S-GW) 137 and grouped data network gateway (Packet Data Network
Gateway, abbreviation PDN-GW).
Fig. 3 is the method flow diagram that one embodiment of the invention illustrates a kind of retransmitting message.Referring to figure 3., the present embodiment
Method is suitable for the communication system 100 of Fig. 1 and user's equipment 110 of Fig. 2.Hereinafter, by collocation communication system 100 and use
Each item in person's equipment 110 illustrates method described in the embodiment of the present invention.Each process of this method can be according to implementation feelings
Shape and adjust therewith, and be not limited to that.
In step s310, authorization requests of the processor 116 by transceiver 113 transmission for proximity service first disappear
Breath, and start the first timer.Specifically, user's equipment 110 is received from upper in the direct heuristic process of ProSe
Layer (for example, ProSe application program) for declaration request after, will do it declaration request process, with obtain for other
It is announced on the interface (for example, PC5 interface between user's equipment 110a and 110b) of user's equipment room of proximity service enable
Proximity attendant application code (ProSe Application Code).It is e.g. visited at this point, user's equipment 110 can transmit
Rope requests the first message of (DISCOVERY_REQUEST) to ProSe function 135 (for example, passing through PC3 interface), to obtain
Register the authorization of public Land Mobile Network (Public Land Mobile Network, abbreviation PLMN).Wherein, this first disappears
Breath is for example including proximity attendant application identification code (ProSe Application identification (ID)), office
Reason identification code (transaction ID), the instruction (command) for being set as " announcing (announce) " and the identification of user's equipment
The data such as code (UE identity).
In addition, reacting on the transmission of first message, processor 116 starts the first timer (for example, T3901).This timing
The clocking value of device is, for example, 30 seconds, 40 seconds or 60 seconds etc..
It should be noted that the signaling paths between user's equipment 110 and ProSe function 135 may pass through one or more
Network entity (for example, MME 131, HSS 133 etc.), the embodiment of the present invention does not limit to above-mentioned transmission path or method.
Then, it in step S330, receives if not passing through transceiver 113 yet when the first timer expires in response to
The second message of one message then starts the second timer.Before the second timer expires, do not retransferred by transceiver 113
First message.Specifically, any network problem may occur for base station 120, core network 130, or with user's equipment
Problem occurs for line between 110, this, which will lead to user's equipment 110, can not receive second message in response to first message
(for example, probe response (DISCOVERY_RESPONSE)).Since these networks or wiring issue may not recover immediately just
Often, if therefore the first timer first message is retransmitted when expiring immediately, may or can not be connect before the first timer expires
Receive second message.First message is so constantly retransmitted in a short time, probably leads to the improper consumption of the power of battery and causes signaling
Flow burden.Accordingly, the embodiment of the present invention just additionally starts the second timer (for example, T3902), to allow user's equipment
Before two timers expire, the first signal is no longer transmitted.In one embodiment, user's equipment 110 can be asked until network or line
After topic restores normal and when the second timer expires, declaration is just reinitialized by the transmission of transceiver 113 first message and is asked
Process is sought, and restarts the first timer.
In another embodiment, before the second timer expires, processor 116 is also closed by transceiver 113 and ProSe
Existing safe line between function 135.Therefore, during this period of time, transceiver 113 will not receive or not react on ProSe function
It can 135 second messages replied.And when the second timer expires, processor 116 can again by transceiver 113 establish with
New safe line between ProSe function 135, with the first message that retransfers.
In further embodiments, processor 116 also by the clocking value of the second timer be multiplied by multiple value (for example, 2,3 or
5 etc.).Aforementioned network or wiring issue may pass through the first timer and the second timer, can not still revert to normal condition.?
In this situation, user's equipment 110 may or can not receive second message.Accordingly, when next time, the first timer expired,
Processor 116 just with multiple extend the second timer clocking value, with allow user's equipment 110 extend waiting problem restore when
Between.And in some embodiments, the second timer also has timing maximum value (for example, 30 minutes, 40 minutes etc.).If the second meter
When device clocking value be greater than timing maximum value, then the clocking value of the second timer is set as timing maximum value by processor 116.
For example, the initial clocking value of the first timer and the second timer is 1 minute, and in second of first timing
When device expires, if user's equipment 110 does not receive second message yet, processor 116 just sets the clocking value of the second timer
It is 2 minutes, and starts the second timer.And third time, the 4th the first timer expire and just the rest may be inferred later prolongs
The expiration time of long second timer.Assuming that timing maximum value is 30 minutes, if the clocking value when the second timer is also 30 points
Zhong Shi, then when the first timer expires next time again, then processor 116 will the clocking value of the second timer be set as 30 minutes.
Whereby, other than it can extend the waiting time, it also can avoid the too long waiting time and user allowed to be inconvenienced.
It should be noted that in other embodiments, if before expiring after the first timer initiation to the first timer, user
Equipment 110 receives second message, then processor 116 can stop the first timer.Also, processor 116 will not start with
The second timer afterwards.
To help to understand the embodiment of the present invention, an example will be lifted below and illustrates user's equipment 110 and ProSe function 135
Between declaration request process.
Fig. 4 is the interaction of the embodiment of the present invention announced in request process between user's equipment 110 and ProSe function 135
Flow chart.Referring to figure 4., in step S410, user's equipment 110 starts the first timer, and transmits exploration request
(DISCOVERY_REQUEST) is to ProSe function 135.Assuming that the clocking value of the first timer is 30 seconds.If coming from ProSe function
Probe response (DISCOVERY_RESPONSE) the transmission failure (step S440) of energy 135, ProSe function 135 can not receive
DISCOVERY_REQUEST or ProSe function 135 can not transmit DISCOVERY_RESPONSE, and processor 116 is until the
When one timer expires, the second timer (step S460) will be started, but DISCOVERY_ is not transmitted by transceiver 113
REQUEST.Assuming that the clocking value of the second timer is one minute.Processor 116 is until the second timer expires (that is, one point
After clock), it will be again started up the first timer, and DISCOVERY_REQUEST (step S470) is transmitted by transceiver 113.
In the present invention, the keyword or term of 3GPP class are used only as example so that concept of the invention according to the present invention is presented；
However, the same concept presented in the present invention can be applied to any other system, such as, IEEE by those skilled in the art
802.11, IEEE 802.16, WiMAX.
In conclusion starting when authorization requests of the user's equipment of the embodiment of the present invention in addition to being used for ProSe in transmission
Except first timer, also start the second timer when the first timer expires, and do not retransmit before the second timer expires
First message.Whereby, it just can effectively save the battery consumption of user's equipment and reduce network flow burden.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of method of retransmitting message is suitable for user's equipment and carries out proximity service ProSe heuristic process, feature exists
In, which comprises
In response to transmitting the first message of the authorization requests for the proximity service, start the first timer；And
If not receiving the second message in response to the first message yet when first timer expires, start second
Timer, wherein
Before second timer expires, do not retransfer the first message.
2. the method according to claim 1, wherein after the step of starting second timer, further includes:
When second timer expires, retransfer the first message, and starts first timer.
3. according to the method described in claim 2, it is characterized in that, transmit the first message, and starting first timing
After the step of device, further includes:
The clocking value of second timer is multiplied by multiple value.
4. according to the method described in claim 3, it is characterized by further comprising:
If the clocking value of second timer is greater than timing maximum value, the clocking value of second timer is set
For the timing maximum value.
5. the method according to claim 1, wherein the step of when first timer expires, further includes:
Close the safe line between proximity service function.
6. a kind of user's equipment is suitable for carrying out proximity service discovery process, which is characterized in that user's equipment packet
It includes:
Transceiver, to transmit and receive wireless signal；
Processor couples the transceiver, and the processor is configured to execute:
First message by transceiver transmission for the authorization requests of the proximity service, and start the first timer；
And
If not receiving second in response to the first message by the transceiver yet when first timer expires
Message then starts the second timer, wherein
Before second timer expires, do not retransferred the first message by the transceiver.
7. user's equipment according to claim 6, which is characterized in that when second timer expires, pass through institute
It states transceiver to retransfer the first message, and the processor starts first timer.
8. user's equipment according to claim 7, which is characterized in that the processor is by the meter of second timer
Duration is multiplied by multiple value.
9. user's equipment according to claim 8, which is characterized in that if the clocking value of second timer is big
In timing maximum value, then the clocking value of second timer is set as the timing maximum value by the processor.
10. user's equipment according to claim 6, which is characterized in that the processor is closed by the transceiver
Close the safe line between proximity service function.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462065010P | 2014-10-17 | 2014-10-17 | |
| US62/065,010 | 2014-10-17 |
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| Publication Number | Publication Date |
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| CN105992314A CN105992314A (en) | 2016-10-05 |
| CN105992314B true CN105992314B (en) | 2019-06-14 |
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| CN201510084285.6A Active CN105992314B (en) | 2014-10-17 | 2015-02-16 | The method and user's equipment of retransmitting message |
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| WO2014105387A1 (en) * | 2012-12-27 | 2014-07-03 | Motorola Mobility Llc | Methods for device-to-device communication |
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| TWI358922B (en) * | 2006-05-07 | 2012-02-21 | Innovative Sonic Ltd | Method and apparatus of default timer configuratio |
| US20080285566A1 (en) * | 2007-04-27 | 2008-11-20 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing radio link control and medium access control packet delivery notification |
| TW201043308A (en) * | 2009-06-09 | 2010-12-16 | Inventec Appliances Corp | Method and system for re-connecting an unexpectedly off-line web-game |
| WO2012146292A1 (en) * | 2011-04-28 | 2012-11-01 | Telefonaktiebolaget L M Ericsson (Publ) | Method and device for modifying a retransmission timer in a communication network |
| US20140146796A1 (en) * | 2012-11-27 | 2014-05-29 | Qualcomm Incorporated | Buffer size reporting in time division high speed uplink packet access (td-hsupa) systems |
| US20140162644A1 (en) * | 2012-12-11 | 2014-06-12 | Innovative Sonic Corporation | Method and apparatus for proximity service enhancement in a wireless communication system |
| US9172512B2 (en) * | 2012-12-18 | 2015-10-27 | Futurewei Technologies, Inc. | System and method for terminal-group based HARQ for cellular integrated D2D communications |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103686727A (en) * | 2012-09-07 | 2014-03-26 | Nxp股份有限公司 | Secure wireless communication apparatus and secure wireless communication method |
| WO2014105387A1 (en) * | 2012-12-27 | 2014-07-03 | Motorola Mobility Llc | Methods for device-to-device communication |
Also Published As
| Publication number | Publication date |
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| CN105992314A (en) | 2016-10-05 |
| TW201616892A (en) | 2016-05-01 |
| TWI549534B (en) | 2016-09-11 |
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