CN104469827A - Wireless link failure processing method and device - Google Patents

Wireless link failure processing method and device Download PDF

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Publication number
CN104469827A
CN104469827A CN201310453236.6A CN201310453236A CN104469827A CN 104469827 A CN104469827 A CN 104469827A CN 201310453236 A CN201310453236 A CN 201310453236A CN 104469827 A CN104469827 A CN 104469827A
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China
Prior art keywords
radio link
link failure
link
base station
communication
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CN201310453236.6A
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CN104469827B (en
Inventor
傅婧
赵亚利
许芳丽
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201310453236.6A priority Critical patent/CN104469827B/en
Priority to PCT/CN2014/087302 priority patent/WO2015043471A1/en
Publication of CN104469827A publication Critical patent/CN104469827A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/23—Manipulation of direct-mode connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • 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)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a wireless link failure processing method and device. The wireless link failure processing method and device are used for avoiding the situation that when the wireless link failure occurs, two UE for conducting D2D communication among devices conduct processing on the wireless link failure at the same time, and waste of signaling and resources is avoided on the premise that the D2D communication can be timely converted or timely restored, UE power consumption is saved, and the working efficiency of the devices is improved. The wireless chain failure processing method includes the steps that when the wireless link failure occurs in the D2D communication between the first user equipment (UE) and the second UE, it is determined that the wireless link failure is required to be processed by the first UE; the first UE conducts processing on the wireless link failure.

Description

A kind of processing method of Radio Link Failure and device
Technical field
The present invention relates to communication technical field, particularly relate to a kind of processing method and device of Radio Link Failure.
Background technology
At present, what Long Term Evolution (Long Term Evolution, LTE) system was taked is the central controlled mode of network, and namely the up-downgoing data of subscriber equipment (User Equipment, UE) carry out sending and receiving all under the control of a network.As shown in Figure 1, the communication between UE is undertaken forwarding and controlling by network, there is not direct communication link between UE, and UE does not allow to send upstream data voluntarily yet.
As shown in Figure 2, at equipment room (Device to Device Communication, D2D) in communication pattern, allow to carry out certain direct communication between subscriber equipment and subscriber equipment, these DCLs can be set up in network control or under assisting; The basis of carrying out D2D communication between subscriber equipment and subscriber equipment can be based on the D2D discovery procedure to close subscriber equipment.
D2D communication is also applicable to the UE of public safety.At public safety field, such as public security, fire-fighting, the scenes such as rescue, directly can carry out the D2D communication of clean culture or the D2D communication of multicast or broadcast between special designated user equipment.As shown in Figure 3, in clean culture D2D communicates, UE1 and/or UE2 can be in Cellular Networks covering scene, namely in net scene, also can not be in Cellular Networks covering scene, i.e. off-grid scene; Under net scene, the D2D communication resource between UE can be subject to network controls, also can be the same with off-grid scene, adopts talk-around mode work, not dynamic by network side or the semi-static control of the D2D communication resource.
In prior art, Radio Link Failure (Radio Link Failure can be there is in D2D communication process, RLF), when there is Radio Link Failure in D2D communication, two UE on this D2D communication link all can process this Radio Link Failure, thus can cause the waste of signaling and resource further, the loss electric energy of UE, reduces the operating efficiency of equipment.
Summary of the invention
The invention provides a kind of processing method and device of Radio Link Failure, in order to avoid when there is Radio Link Failure, two UE carrying out equipment room D2D communication all process this Radio Link Failure, the waste of signaling and resource is avoided when ensureing that D2D communication can be changed in time or recover in time, save the power consumption of UE, improve the operating efficiency of equipment.
Embodiments provide a kind of processing method of Radio Link Failure, the method comprises:
After equipment room D2D when between first user equipment UE with the 2nd UE communicates and Radio Link Failure occurs, determine that this Radio Link Failure needs by a UE process;
One UE processes for this Radio Link Failure.
As can be seen from such scheme, the processing method of a kind of Radio Link Failure that the embodiment of the present invention provides, in order to avoid when there is Radio Link Failure, two UE carrying out equipment room D2D communication all process this Radio Link Failure, avoid the waste of signaling and resource further, save the power consumption of UE, improve the operating efficiency of equipment.
Preferably, a UE determines that this Radio Link Failure needs by a UE process, comprising:
According to the instruction of base station side, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process.
Determine the UE needing to process this Radio Link Failure by the way, to avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, avoid the waste of signaling and resource.
Preferably, a UE processes for this Radio Link Failure, comprising:
One UE initiates link recover process voluntarily; Or,
D2D communication link generation Radio Link Failure between one UE informing base station the one UE and the 2nd UE, and according to the instruction of base station, stop the D2D link between a UE and the 2nd UE, enter D2D RRC idle state, and according to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed in D2N carrying by D2D carrying, initiatively or according to base station instruction initiates D2D discovery or D2D connection establishment process.
Like this, when there is Radio Link Failure, a UE processes this Radio Link Failure.
Preferably, a UE initiates link recover process voluntarily, comprising: a UE enters D2D RRCidle state, and initiates D2D discovery procedure or D2D connection establishment process.
Like this, when Radio Link Failure occurs, a UE initiates D2D connection establishment process, prepares for recovering D2D communication link.
Preferably, a UE initiates link recover process voluntarily, also comprises: the D2D communication link generation Radio Link Failure between UE informing base station the one UE and the 2nd UE.
Like this so that base station is for further processing to the Radio Link Failure occurred.
Preferably, a UE initiates link recover process voluntarily, also comprises: a UE notifies to there occurs Radio Link Failure in the process that UE this D2D high-rise communicates, and D2D link bearer is transformed on D2N link.
Like this, UE just can be communicated by D2N link.
Preferably, a UE enters D2D RRC idle state, and while initiating D2D discovery procedure or D2D connection establishment process, the method also comprises:
One UE opens D2D link-recovery timer, and when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
Like this, D2D link-recovery timer is opened to judge that whether D2D link recover process is successful.
Preferably, the method also comprises:
One UE is carrying out in D2D communication process with the 3rd UE, determines that the Radio Link Failure occurred in this D2D communication process does not need by a UE process;
One UE indicates according to base station side, enters D2D RRC idle state, monitors the request signal in D2D discovery signal or D2D connection establishment process.
Like this, determine that a UE does not need to process the Radio Link Failure occurred in D2D communication process, and then avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, and then avoid the waste of signaling and resource, save the power consumption of UE, improve the operating efficiency of equipment; A UE monitors the request signal in D2D discovery signal or D2D connection establishment process simultaneously, prepares for recovering D2D communication link.
Preferably, the method also comprises:
One UE is according to the instruction of described base station, and D2N link between apparatus for establishing and network node, is transformed into D2D carrying in D2N carrying.
Like this, UE just can be communicated by D2N link.
Preferably, the method also comprises:
After D2D when between a UE with the 3rd UE communicates and Radio Link Failure occurs, determine that this Radio Link Failure does not need by a UE process;
One UE enters D2D RRC idle state, monitors the request signal in D2D discovery signal or D2D connection establishment initial procedure.
Like this, determine that a UE does not need to process the Radio Link Failure occurred in D2D communication process, and then avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, and then avoid the waste of signaling and resource, save the power consumption of UE, improve the operating efficiency of equipment; A UE monitors the request signal in D2D discovery signal or D2D connection establishment process simultaneously, prepares for recovering D2D communication link.
Preferably, a UE enters D2D RRC idle state, and while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, the method also comprises:
One UE opens D2D link-recovery timer, and when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
Like this, D2D link-recovery timer is opened to judge that whether D2D link recover process is successful.
In base station side, the invention provides a kind of processing method of Radio Link Failure, the method comprises:
Base station is determined to carry out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at first user equipment UE and the 2nd UE;
Base station notifies that a UE carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
The UE needing to process this Radio Link Failure is determined in base station by the way, and notify a UE, to avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, avoid the waste of signaling and resource.
Preferably, the method also comprises:
Base station notifies that described 2nd UE carries out, in the process that D2D communicates, not needing by the 2nd UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
Like this, base station determines that the 2nd UE does not need to process the Radio Link Failure occurred in D2D communication process, and then avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, and then avoid the waste of signaling and resource, save the power consumption of UE, improve the operating efficiency of equipment.
Preferably, the method also comprises:
Base station receives the notice of the D2D communication link generation Radio Link Failure between a UE of a UE transmission and the 2nd UE.
Like this so that base station is for further processing to the Radio Link Failure occurred.
Preferably, after base station receives described notice, the method also comprises: base-station ceases is to the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE.
Like this, stop, to the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE, avoiding the waste of signaling and resource.
Preferably, base-station ceases is to after the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE, and the method also comprises:
Link recover process is initiated in base station.
Like this, when Radio Link Failure occurs, base station is for further processing to the Radio Link Failure occurred, and namely initiates link recover process.
Preferably, link recover process is initiated in base station, comprising:
The base station described UE of instruction and the 2nd UE stops D2D communication process, and sets up D2N link.
Like this, after generation Radio Link Failure, a UE and the 2nd UE sets up D2N link, plays the effect recovering link process.
Preferably, link recover process is initiated in base station, also comprises:
Base station stops D2D communication process at the described UE of instruction and the 2nd UE, and after setting up D2N link, base station instruction the one UE opens D2D discovery procedure or D2D connection establishment process, and indicates the 2nd UE to monitor D2D discovery procedure or D2D connection establishment process.
Like this to recover D2D communication link.
The present invention also provides a kind of processing unit of Radio Link Failure, and this device comprises:
First determination module, after communicating Radio Link Failure occurs, determines that this Radio Link Failure needs by a UE process for the D2D when between a UE with the 2nd UE;
First processing module, processes for this Radio Link Failure for a UE.
Preferably, the first determination module determine this Radio Link Failure need by a UE process time, specifically for:
According to the instruction of base station side, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process.
First determination module determines the UE needing to process this Radio Link Failure by the way, and to avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, avoid the waste of signaling and resource.
Preferably, the first processing module, specifically for:
Initiate link recover process; Or,
D2D communication link generation Radio Link Failure between informing base station the one UE and the 2nd UE, and according to the instruction of base station, stop the D2D link between a UE and the 2nd UE, enter D2D RRC idle state, and according to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed in D2N carrying by D2D carrying, initiatively or according to base station instruction initiates D2D discovery or D2D connection establishment process.
Like this, when there is Radio Link Failure, the first processing module processes this Radio Link Failure.Preferably, the first processing module, specifically for: make a UE enter D2D RRC idle state, and initiate D2D discovery procedure or D2D connection establishment process.
Preferably, when described first processing module is used for initiating link recover process voluntarily, the first processing module, specifically for: make a UE enter D2D RRC idle state, and initiate D2D discovery procedure or D2D connection establishment process.
Like this, when Radio Link Failure occurs, the first processing module makes a UE initiate D2D connection establishment process, prepares for recovering D2D communication link.
Preferably, when described first processing module is used for initiating link recover process voluntarily, described first processing module, also for D2D communication link generation Radio Link Failure between informing base station the one UE and the 2nd UE.
Like this so that base station is for further processing to the Radio Link Failure occurred.
Preferably, when the first processing module be used for voluntarily initiate link recover process time, the first processing module, also for: D2D link bearer is transformed into D2N link.
Like this, UE just can be communicated by D2N link.
Preferably, first processing module also for: enter D2D RRC idle state making a UE, and while initiating D2D discovery procedure or D2D connection establishment process, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
Like this, D2D link-recovery timer is opened to judge that whether D2D link recover process is successful.
Preferably, this device also comprises:
Second determination module, for carrying out in D2D communication process at a UE with the 3rd UE, is determining that the Radio Link Failure occurred in this D2D communication process does not need by a UE process;
Second processing module, for according to base station side instruction, enters D2D RRC idle state, monitors the request signal in D2D discovery signal or D2D connection establishment process.
Like this, second determination module determines that a UE does not need to process the Radio Link Failure occurred in D2D communication process, and then avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, and then avoid the waste of signaling and resource, save the power consumption of UE, improve the operating efficiency of equipment; Second processing module monitors the request signal in D2D discovery signal or D2D connection establishment process simultaneously, prepares for recovering D2D communication link.
Preferably, the second processing module also for:
According to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed into D2D carrying in D2N carrying.
Like this, UE just can be communicated by D2N link.
Preferably, second processing module also for: enter D2D RRC idle state at triggering the one UE, while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
Like this, D2D link-recovery timer is opened to judge that whether D2D link recover process is successful.
Preferably, this device also comprises:
3rd determination module, after communicating Radio Link Failure occurs, determines that this Radio Link Failure does not need by a UE process for the D2D when between a UE with the 3rd UE;
3rd processing module, enters D2D RRC idle state for triggering a UE, monitors the request signal in D2D discovery signal or D2D connection establishment initial procedure.
Like this, 3rd determination module determines that a UE does not need to process the Radio Link Failure occurred in D2D communication process, and then avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, and then avoid the waste of signaling and resource, save the power consumption of UE, improve the operating efficiency of equipment; 3rd processing module triggers the request signal in a UE monitoring D2D discovery signal or D2D connection establishment process simultaneously, prepares for recovering D2D communication link.
Preferably the 3rd processing module also for: enter D2D RRC idle state at triggering the one UE, while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
Like this, D2D link-recovery timer is opened to judge that whether D2D link recover process is successful.
In base station side, present invention also offers a kind of processing unit of Radio Link Failure, this device comprises:
Determination module, carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at first user equipment UE and the 2nd UE for determining;
Notification module, for notifying that a UE carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
Preferably, this device also comprises:
Notification module also for, for notifying that described 2nd UE carries out, in the process that D2D communicates, not needing by the 2nd UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
Like this, notification module notifies that the 2nd UE does not need to process the Radio Link Failure occurred in D2D communication process, and then avoid when there is Radio Link Failure, two UE carrying out D2D communication all process this Radio Link Failure, and then avoid the waste of signaling and resource, save the power consumption of UE, improve the operating efficiency of equipment.
Preferably, this device also comprises:
Receiver module, for receiving the notice of the D2D communication link generation Radio Link Failure between a UE of a UE transmission and the 2nd UE.
Like this so that base station is for further processing to the Radio Link Failure occurred.
Preferably, this device also comprises:
Processing module, for after described receiver module receives described notice, stops the D2D Resourse Distribute to the D2D link between a UE and the 2nd UE.
Like this, stop, to the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE, avoiding the waste of signaling and resource.
Preferably, processing module also for:
After stopping the D2D Resourse Distribute to the D2D link between a UE and the 2nd UE, initiate link recover process.
Like this, when Radio Link Failure occurs, link recover process initiation module is for further processing to the Radio Link Failure occurred, and namely initiates link recover process.
Preferably, processing module initiate link recover process time, specifically for:
Indicate a described UE and the 2nd UE to stop D2D communication process, and set up D2N link.
Like this, after generation Radio Link Failure, a UE and the 2nd UE set up new equipment and the D2N link that communicates between network node
Preferably, processing module initiate link recover process time, also for:
Stop D2D communication process at the described UE of instruction and the 2nd UE, and after setting up D2N link, instruction the one UE opens D2D discovery procedure or D2D connection establishment process, and indicate the 2nd UE to monitor D2D discovery procedure or D2D connection establishment process.
Like this to recover D2D communication link.
Accompanying drawing explanation
Fig. 1 is the central controlled mode schematic diagram of prior art network;
Fig. 2 is prior art communication between devices pattern diagram;
Fig. 3 is prior art clean culture D2D communication scheme;
The process flow schematic diagram of a kind of Radio Link Failure of the UE side that Fig. 4 provides for the embodiment of the present invention;
The process flow schematic diagram of a kind of Radio Link Failure of the base station side that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is the processing method schematic diagram of Radio Link Failure in embodiment 1 provided by the invention;
Fig. 7 is the processing method schematic diagram of Radio Link Failure in embodiment 2 provided by the invention;
Fig. 8 is the processing method schematic diagram of Radio Link Failure in embodiment 3 provided by the invention;
The processing unit schematic diagram of a kind of Radio Link Failure of the UE side that Fig. 9 provides for the embodiment of the present invention;
The processing unit schematic diagram of a kind of Radio Link Failure of the base station side that Figure 10 provides for the embodiment of the present invention.
Embodiment
The present invention provides a kind of processing method and device of Radio Link Failure respectively at equipment side and base station side, in order to avoid at generation Radio Link Failure (Radio Link Failure, RLF) time, two UE carrying out equipment room D2D communication all process this Radio Link Failure, the waste of signaling and resource is avoided when ensureing that D2D communication can be changed in time or recover in time, save the power consumption of UE, improve the operating efficiency of equipment.
As shown in Figure 4, at equipment side, the invention provides a kind of processing method of Radio Link Failure, the method comprises:
After S41, equipment room D2D when between first user equipment UE with the 2nd UE communicate and Radio Link Failure occurs, determine that this Radio Link Failure needs by a UE process;
S42, a UE process for this Radio Link Failure.
Wherein, a UE determines that this Radio Link Failure needs by a UE process, can adopt one of following three kinds of modes:
Mode one: according to the instruction of base station side, determines that this Radio Link Failure needs by a UE process, such as base station is according to Reference Signal Received Power (the Reference signalreceived power between base station to UE, or Reference Signal Received Quality (Reference Signal Received Quality RSRP), RSRQ), or channel quality instruction (Channel Quality Indicator, CQI), select D2N mass ratio better, i.e. RSRP, the higher UE of RSRQ or CQI is as the UE of process Radio Link Failure, and the UE couple of D2D communication is carried out by display signaling, such as: when a UE and the 2nd UE carry out D2D communicate time, channel quality RSRQ relatively between two UE and eNB, if the RSRQ value between a UE and eNB is greater than the RSRQ value between the 2nd UE and eNB, then select a UE as the UE of process Radio Link Failure,
Mode two: when a UE is the UE initiating D2D communication request, determines that this Radio Link Failure needs by a UE process;
Mode three: when a UE is as transmit layer 2(L2 in D2D communication) UE of packet or IP packet time, determine that this Radio Link Failure needs by a UE process.
It should be noted that, in D2D communication process, select the UE of process Radio Link Failure to have multiple choices mode, be not limited to above-mentioned selection mode provided by the invention.
One UE processes for this Radio Link Failure, can adopt one of the following two kinds mode:
Mode one: the one UE initiates link recover process voluntarily; Concrete comprises: a UE enters D2DRRC idle state, and initiates D2D discovery procedure or D2D connection establishment process; One UE informing base station stops the Resourse Distribute to the D2D communication link between a UE and the 2nd UE; Optionally, a UE notifies to there occurs Radio Link Failure in the process that UE this D2D high-rise communicates, and D2D link bearer is transformed on D2N link.
D2D communication link generation Radio Link Failure between mode two: the one UE informing base station the one UE and the 2nd UE, and according to the instruction of base station, stop the D2D link between a UE and the 2nd UE, enter D2D RRC idle state, and according to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed in D2N carrying by D2D carrying, initiatively or according to base station instruction initiates D2D discovery or D2D connection establishment process.
In aforesaid way one with mode two, a UE enters D2D RRC idle state, and while initiating D2D discovery procedure or D2D connection establishment process, the method also comprises:
One UE opens D2D link-recovery timer, and when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process; Wherein, D2D link-recovery timer can be that user sets, or Server and the UE side communicated by D2D is mutual, sets this timer.
When a UE does not need to process Radio Link Failure, such as, in a UE and the 3rd UE(embodiment of the present invention, 3rd UE and the 2nd UE can be same UE, also can be different UE) carry out in D2D communication process, if generation Radio Link Failure, and this Radio Link Failure does not need by a UE process, then to have:
When a UE is carrying out in D2D communication process with the 3rd UE, when one UE determines that the Radio Link Failure occurred in this D2D communication process does not need by a UE process, one UE indicates according to base station side, enter D2D RRC idle state, monitor the request signal in D2D discovery signal or D2D connection establishment process; Optionally, a UE is according to the instruction of base station, and D2N link between apparatus for establishing and network node, is transformed into D2D carrying in D2N carrying.
After D2D when between a UE with the 3rd UE communicates and Radio Link Failure occurs, when determining that this Radio Link Failure does not need by a UE process, one UE enters D2D RRC idle state, monitors the request signal in D2D discovery signal or D2D connection establishment initial procedure;
Wherein, enter D2D RRC idle state at a UE, while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, the method also comprises:
One UE opens D2D link-recovery timer, and when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process; Wherein, D2D link-recovery timer can be that user sets, or Server and the UE side communicated by D2D is mutual, sets this timer.
In like manner, a UE determines that Radio Link Failure does not need, by a UE process, can adopt one of following three kinds of modes:
Mode one: according to the instruction of base station side, determines that the Radio Link Failure carrying out occurring in D2D communication process at a UE and the 3rd UE does not need by a UE process, such as base station is according to Reference Signal Received Power (the Reference signal received power between base station to UE, or Reference Signal Received Quality (Reference Signal Received Quality RSRP), RSRQ), or channel quality instruction (Channel Quality Indicator, CQI), select D2N mass ratio better, i.e. RSRP, the higher UE of RSRQ or CQI is as the UE of process Radio Link Failure, then, another UE is the UE not needing to process Radio Link Failure, and the UE couple of D2D communication is carried out by display signaling,
Mode two: when a UE is not the UE initiating D2D communication request, determine that this Radio Link Failure does not need by a UE process;
Mode three: when a UE is not as transmit layer 2(L2 in D2D communication) UE of packet or IP packet time, determine that this Radio Link Failure does not need by a UE process.
In the above-mentioned methods, UE detects the method whether Radio Link Failure occurs in D2D communication process, such as:
When UE detects that the signal quality of D2D communication process link continues for some time lower than certain threshold value, such as RSRQ be less than-12dB and this situation continue for 1s time; Or
The transmission number of retransmissions of D2D packet reaches maximum, as wireless spread-spectrum technology (Radio LinkControl, RLC) number of retransmissions reaches 4 times; Or
Do not receive the data that opposite end sends in certain hour, as UE in 5s, do not receive the data that opposite end sends time, then think and there occurs Radio Link Failure in D2D communication process.
Correspondingly, as shown in Figure 5, in base station side, the invention provides a kind of processing method of Radio Link Failure, the method comprises:
S51, base station are determined to carry out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at first user equipment UE and the 2nd UE;
S52, base station notify that a UE carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
Preferably, the method also comprises:
Base station receives the notice of the D2D communication link generation Radio Link Failure between a UE of a UE transmission and the 2nd UE.
Preferably, after base station receives described notice, the method also comprises: base-station ceases is to the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE
Preferably, base-station ceases is to after the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE, and the method also comprises:
Link recover process is initiated in base station.
Wherein, base station, according to the notice of a UE, is initiated link recover process, being comprised: the base station described UE of instruction and the 2nd UE stops D2D communication process, and the communication D2N link between apparatus for establishing and network node; Base station instruction the one UE opens D2D discovery procedure or D2D connection establishment process, and indicates the 2nd UE to monitor D2D discovery procedure or D2D connection establishment process.
Method of the present invention is described in detail below with specific embodiment, in embodiment, every UE carrying out D2D communication for a pair is at wireless heterogeneous networks (Radio Resource Control, RRC) layer may have two states, one is D2D connected state, D2D can be carried out with opposite end UE in this case to communicate, when this D2D communicate between D2D link deleted or when not existing, enter another kind of state, i.e. D2D idle state, under this state, UE is by D2D Discovery process or D2D connection establishment process, to D2D Correspondent Node UE carry out relevant mutual after, enter D2D connected state.
Embodiment 1: under net scene, when there is Radio Link Failure in D2D communication process, UE informing base station side processes.
As shown in Figure 6, concrete processing procedure is as follows:
S600: base station is determined to carry out in the process that D2D communicates at a UE and the 2nd UE, the Radio Link Failure that a UE needs process to occur, and the 2nd UE does not need to process the Radio Link Failure occurred;
S601: base station notifies that a UE needs the Radio Link Failure of process generation, notifies that the 2nd UE does not need to process the Radio Link Failure occurred;
Wherein, above-mentioned steps S600 and S601 is optional step, when UE oneself determines whether the Radio Link Failure needing process to occur, does not need to perform.
S602: the one UE determines the Radio Link Failure needing process to occur, and the 2nd UE determines not need to process the Radio Link Failure occurred;
S603: the one UE detects whether there occurs Radio Link Failure in the process of D2D communication;
S604: when a UE detect there is Radio Link Failure in the process that D2D communicates time, send D2D communication to base station and the notice of Radio Link Failure occur;
S605: base station, according to the notice of a UE, stops the Resourse Distribute to the D2D communication link between a UE and the 2nd UE;
S606: base station instruction the one UE and the 2nd UE stops D2D communication link, the communication D2N link between apparatus for establishing and network node;
S607: alternatively, base station instruction the one UE opens D2D discovery procedure or D2D connection establishment process.
S608: alternatively, base station instruction the 2nd UE monitors the request signal in D2D discovery signal or D2D connection establishment process.
S609: the one UE, according to the instruction of base station in step S606, stops D2D communication link, sets up D2N link.Be transformed in D2N carrying by D2D carrying, active or the instruction according to base station in step S607, enter D2D RRC idle state, initiates D2D and find or D2D connection establishment process.Meanwhile, alternatively, D2D link-recovery timer can be opened;
S610: the two UE, according to the instruction of base station in step S606, stops D2D communication link, sets up D2N link.Active or the instruction according to base station in step S608, enter D2D RRC idle state, monitors the request signal in D2D discovery signal or D2D connection establishment process.Meanwhile, alternatively, D2D link-recovery timer can be opened simultaneously.
Wherein, a UE, when initiating D2D discovery procedure or D2D connection establishment initial procedure, can open D2D link-recovery timer; Detect in D2D communication process at the 2nd UE and Radio Link Failure occurs, and when starting to monitor the request signal in D2D discovery signal or D2D connection establishment initial procedure, the 2nd UE also can open D2D link-recovery timer.
The timing length of D2D link-recovery timer can be that user sets, or the server communicated by D2D and UE side is mutual, setting.Such as can be set to 20s or 1 minute.After D2D link-recovery timer expiry, one UE or the 2nd UE can send the Indication message of D2D link-recovery failure to UE high level, for the high-rise decision-making further of UE, such as: the user interface of UE can show D2D link failure, whether prompting user continues to perform D2D link recover process.
Wherein, the method whether Radio Link Failure occurs in UE detection D2D communication process is as follows:
When UE detects that the signal quality of D2D communication process link continues for some time lower than certain threshold value, such as RSRQ be less than-12dB and this situation continue for 1s time; Or
The transmission number of retransmissions of D2D packet reaches maximum, as wireless spread-spectrum technology (Radio LinkControl, RLC) number of retransmissions reaches 4 times; Or
Do not receive the data that opposite end UE sends in certain hour, as UE in 5s, do not receive the data that opposite end UE sends time, then think and there occurs Radio Link Failure in D2D communication process.
Base station determines that the method for the UE processing Radio Link Failure comprises: base station side reports according to measurement before, obtain Reference Signal Received Power (the Reference signal received power participating in D2D and communicate respective between two right UE and base station, RSRP), Reference Signal Received Quality (Reference SignalReceived Quality, RSRQ) and channel quality instruction (Channel Quality Indicator, CQI), select D2N mass ratio better, the UE that namely RSRP, RSRQ or CQI are higher is as the UE of process Radio Link Failure; Or, when a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process; Or, when a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process;
Particularly, base station communicates the UE of centering whether as the UE of the process after responsible D2D link RLF by RRC information notice D2D, such as, the RRC information of the indication information carrying 1bit is sent to UE by base station side, whether this indication information is used to indicate UE is the UE processing RLF, if this indication information is true, UE is then indicated to be the UE processing RLF, otherwise, if this indication information is false, then UE is indicated not to be the UE processing RLF, therefore, receiving this indication information in RRC information is the UE of true, then determine that this UE is the UE of process RLF; Not this indication information in the RRC information received, or this indication information is the UE of false, then determine this UE not as the UE of process RLF.
By above-mentioned processing procedure, when there is RLF in D2D communication process, avoid the generation of the two UE equal signals base side RLF carrying out D2D communication, simultaneously, above-mentioned processing procedure, determine when there is RLF, which UE is responsible for processing the RLF occurred in D2D communication process, avoid UE in detection D2D communication link recovery process, both needed as sender, need again as listener, as by the way, be responsible for the UE of the RLF occurred in process D2D communication process, broadcast D2D is only needed to find signal, the UE of the RLF occurred in not responsible process D2D communication process, only need in discovery procedure, monitor D2D and find signal, thus further avoid the waste of signaling and resource, save the power consumption of UE, the operating efficiency of raising system.
Embodiment 2: in net situation, during generation Radio Link Failure, UE initiates link recover process voluntarily, but needs informing network side.
As shown in Figure 7, concrete processing procedure is as follows:
S700: base station is determined to carry out in the process that D2D communicates at a UE and the 2nd UE, the Radio Link Failure that a UE needs process to occur, and the 2nd UE does not need to process the Radio Link Failure occurred;
S701: base station notifies that a UE needs the Radio Link Failure of process generation, notifies that the 2nd UE does not need to process the Radio Link Failure occurred;
Wherein, above-mentioned steps S700 and S701 is optional step, when UE oneself determines whether the Radio Link Failure needing process to occur, does not need to perform.
S702: the one UE determines the Radio Link Failure needing process to occur, and the 2nd UE determines not need to process the Radio Link Failure occurred;
S703: when a UE detect there is Radio Link Failure RLF in the process that D2D communicates time, a UE initiates link recover process voluntarily, enters D2D RRC idle state, opens D2D discovery procedure or D2D connection establishment process; Meanwhile, alternatively, D2D link-recovery timer can be opened;
S704: optional, a UE is by Radio Link Failure occurring in RRC information informing base station D2D communication process;
S705: base station, according to the notice of a UE described in step 704, stops the Resourse Distribute to the D2D communication link between a UE and the 2nd UE;
S706: when the 2nd UE detect there is Radio Link Failure RLF in the process that D2D communicates time, enter D2D RRC idle state, monitor the request signal that D2D finds in signal or D2D connection establishment initial procedure; Meanwhile, alternatively, D2D link-recovery timer can be opened.
In step 703, optionally, a UE notifies to there occurs Radio Link Failure in the process that UE this D2D high-rise communicates, and D2D link bearer is transformed on D2N link; Optionally, a UE triggers UE high level and initiates D2D discovery procedure or D2D connection establishment process, and informing network side the one UE there occurs Radio Link Failure in the process communicated with the D2D of the 2nd UE further.
It is as follows that UE detects the method whether Radio Link Failure occurs in D2D communication process:
When UE detects that the signal quality of D2D communication process link continues for some time lower than certain threshold value, such as RSRQ be less than-12dB and this situation continue for 1s time; Or
The transmission number of retransmissions of D2D packet reaches maximum, as wireless spread-spectrum technology (Radio LinkControl, RLC) number of retransmissions reaches 4 times; Or
Do not receive the data that opposite end sends in certain hour, as UE in 5s, do not receive the data that opposite end sends time, then think and there occurs Radio Link Failure in D2D communication process.
Base station determines that the method for the UE processing Radio Link Failure comprises: base station side reports according to measurement before, obtain Reference Signal Received Power (the Reference signal received power participating in D2D and communicate respective between two right UE and base station, RSRP), Reference Signal Received Quality (Reference SignalReceived Quality, RSRQ) and channel quality instruction (Channel Quality Indicator, CQI), select D2N mass ratio better, the UE that namely RSRP, RSRQ or CQI are higher is as the UE of process Radio Link Failure; Or, when a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process; Or, when a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process.
Particularly, base station communicates the UE of centering whether as the UE of the process after responsible D2D link RLF by RRC information notice D2D, such as, the RRC information carrying 1bit indication information is sent to UE by base station side, whether this indication information is used to indicate UE is the UE processing RLF, if this indication information is true, UE is then indicated to be the UE processing RLF, otherwise, if this indication information is false, then UE is indicated not to be the UE processing RLF, therefore, receiving this indication information in RRC information is the UE of true, then determine that this UE is the UE of process RLF; Not this indication information in the RRC information received, or this indication information is the UE of false, then determine this UE not as the UE of process RLF.
By above-mentioned processing procedure, when there is RLF in D2D communication process, avoid the generation of the two UE equal signals base side RLF carrying out D2D communication, simultaneously, above-mentioned processing procedure, determine when there is RLF, which UE is responsible for processing the RLF occurred in D2D communication process, avoid UE in detection D2D communication link recovery process, both needed as sender, need again as listener, as by the way, be responsible for the UE of the RLF occurred in process D2D communication process, broadcast D2D is only needed to find signal, the UE of the RLF occurred in not responsible process D2D communication process, only need in discovery procedure, monitor D2D and find signal, thus further avoid the waste of signaling and resource, save the power consumption of UE, the operating efficiency of raising system.
Embodiment 3: under net or off-grid situation, when there is Radio Link Failure in D2D communication process, UE initiates link recover process voluntarily.
As shown in Figure 8, concrete processing procedure is as follows:
S80: carry out in the process that D2D communicates at a UE and the 2nd UE, determine the Radio Link Failure that a UE needs process and occurs, the 2nd UE does not need to process the Radio Link Failure occurred;
S81: when a UE detects generation Radio Link Failure, a UE enters D2D RRC idle state, and initiates D2D discovery procedure or D2D connection establishment initial procedure; Meanwhile, alternatively, D2D link-recovery timer can be opened;
S82: when the 2nd UE detects generation Radio Link Failure, the 2nd UE enters D2D RRC idle state; Meanwhile, alternatively, D2D link-recovery timer can be opened;
S83: the two UE monitors the request signal in D2D discovery signal or D2D connection establishment initial procedure.
Preferably, if in net situation, then a UE needs to send to UE high level the Indication message that there occurs Radio Link Failure in D2D communication process, triggers the link conversion that UE high level carries out D2D to D2N; Optionally, this Indication message triggers UE high level further and initiates D2D discovery procedure or D2D connection establishment process; Optionally, the 2nd UE needs to send to UE high level the Indication message that there occurs Radio Link Failure in D2D communication process, triggers the link conversion that UE high level carries out D2D to D2N.
Concrete, base station determines that the method for the UE processing Radio Link Failure comprises: base station side reports according to measurement before, obtain Reference Signal Received Power (the Reference signal received power participating in D2D and communicate respective between two right UE and base station, RSRP), Reference Signal Received Quality (ReferenceSignal Received Quality, RSRQ) and channel quality instruction (Channel Quality Indicator, CQI), select D2N mass ratio better, i.e. RSRP, the higher UE of RSRQ or CQI is as the UE of process Radio Link Failure, or, when a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process, or, when a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process.
It is as follows that UE detects the method whether Radio Link Failure occurs in D2D communication process:
When UE detects that the signal quality of D2D communication process link continues for some time lower than certain threshold value, such as RSRQ be less than-12dB and this situation continue for 1s time; Or
The transmission number of retransmissions of D2D packet reaches maximum, as wireless spread-spectrum technology (Radio LinkControl, RLC) number of retransmissions reaches 4 times; Or
Do not receive the data that opposite end sends in certain hour, as UE in 5s, do not receive the data that opposite end sends time, then think and there occurs Radio Link Failure in D2D communication process.
By above-mentioned processing procedure, when there is RLF in D2D communication process, avoid the generation of the two UE equal signals base side RLF carrying out D2D communication, simultaneously, above-mentioned processing procedure, determine when there is RLF, which UE is responsible for processing the RLF occurred in D2D communication process, avoid UE in detection D2D communication link recovery process, both needed as sender, need again as listener, as by the way, be responsible for the UE of the RLF occurred in process D2D communication process, broadcast D2D is only needed to find signal, the UE of the RLF occurred in not responsible process D2D communication process, only need in discovery procedure, monitor D2D and find signal, thus further avoid the waste of signaling and resource, save the power consumption of UE, the operating efficiency of raising system.
As shown in Figure 9, in UE side, embodiments provide a kind of processing unit of Radio Link Failure, this device comprises:
First determination module 91, after communicating Radio Link Failure occurs, determines that this Radio Link Failure needs by a UE process for the D2D when between a UE with the 2nd UE;
First processing module 92, for processing for this Radio Link Failure.
Preferably, the first determination module 91 determine this Radio Link Failure need by a UE process time, specifically for:
According to the instruction of base station side, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process.
Preferably, the first processing module 92, specifically for:
Initiate link recover process voluntarily; Or,
D2D communication link generation Radio Link Failure between informing base station the one UE and the 2nd UE, and according to the instruction of base station, stop the D2D link between a UE and the 2nd UE, enter D2D RRC idle state, and according to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed in D2N carrying by D2D carrying, initiatively or according to base station instruction initiates D2D discovery or D2D connection establishment process.
Preferably, when the first processing module 92 is for initiating link recover process voluntarily, the first processing module 92, specifically for: make a UE enter D2D RRC idle state, and initiate D2D discovery procedure or D2D connection establishment process.
Preferably, when the first processing module 92 is for initiating link recover process voluntarily, the first processing module 92, also for D2D communication link generation Radio Link Failure between informing base station the one UE and the 2nd UE.
Preferably, when the first processing module 92 is for initiating link recover process voluntarily, the first processing module 92, also for: D2D link bearer is transformed into D2N link.
Preferably, first processing module 92 also for: enter D2D RRC idle state making a UE, and while initiating D2D discovery procedure or D2D connection establishment process, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process
Preferably, this device also comprises:
Second determination module, for carrying out in D2D communication process at a UE and the 3rd UE, determines that the Radio Link Failure occurred in this D2D communication process does not need by a UE process;
Second processing module, for according to base station side instruction, triggers a UE and enters D2D RRC idle state, monitor the request signal in D2D discovery signal or D2D connection establishment process.
Preferably, the second processing module also for:
According to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed into D2D carrying in D2N carrying.
Preferably, second processing module also for: enter D2D RRC idle state at triggering the one UE, while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
Preferably, this device also comprises:
3rd determination module, after communicating Radio Link Failure occurs, determines that this Radio Link Failure does not need by a UE process for the D2D when between a UE with the 3rd UE;
3rd processing module, enters D2D RRC idle state for triggering a UE, monitors the request signal in D2D discovery signal or D2D connection establishment initial procedure.
Preferably, 3rd processing module also for: enter D2D RRC idle state at triggering the one UE, while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
Concrete, the first determination module 91, first processing module 92, second determination module, the second processing module, the 3rd determination module and the 3rd processing module can be the entities such as processor, and the present invention is not limited to the entity realizing these modules.
As shown in Figure 10, in base station side, embodiments provide a kind of processing unit of Radio Link Failure, this device comprises:
Determination module 101, carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at first user equipment UE and the 2nd UE for determining;
Notification module 102, for notifying that a UE carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
Preferably, notification module 102 also for:
Notify that described 2nd UE carries out, in the process that D2D communicates, not needing by the 2nd UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
Preferably, this device also comprises:
Receiver module, for receiving the notice of the D2D communication link generation Radio Link Failure between a UE of a UE transmission and the 2nd UE.
Preferably, this device also comprises:
Processing module, for after described receiver module receives described notice, stops the D2D Resourse Distribute to the D2D link between a UE and the 2nd UE.
Preferably, processing module also for: after stopping D2D Resourse Distribute to the D2D link between a UE and the 2nd UE, initiate link recover process;
Preferably, processing module initiate link recover process time, specifically for:
Indicate a described UE and the 2nd UE to stop D2D communication process, and set up D2N link.
Preferably, processing module initiate link recover process time, also for:
Stop D2D communication process at the described UE of instruction and the 2nd UE, and after setting up D2N link, instruction the one UE opens D2D discovery procedure or D2D connection establishment process, and indicate the 2nd UE to monitor D2D discovery procedure or D2D connection establishment process.
Concrete, determination module 101 and processing module can be the entities such as processor, the transport module that notification module 102 and receiver module can have transmission-receiving function realizes, and such as notification module 102 and receiver module can be the equipment such as antenna, and the present invention is not limited to the entity realizing these modules.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (37)

1. a processing method for Radio Link Failure, is characterized in that, the method comprises:
After equipment room D2D when between first user equipment UE with the 2nd UE communicates and Radio Link Failure occurs, determine that this Radio Link Failure needs by a UE process;
One UE processes for this Radio Link Failure.
2. method according to claim 1, is characterized in that, determines that this Radio Link Failure needs by a UE process, comprising:
According to the instruction of base station side, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process.
3. method according to claim 1, is characterized in that, a UE processes for this Radio Link Failure, comprising:
One UE initiates link recover process voluntarily; Or,
D2D communication link generation Radio Link Failure between one UE informing base station the one UE and the 2nd UE, and according to the instruction of base station, stop the D2D link between a UE and the 2nd UE, enter D2D RRC idle state, and according to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed in D2N carrying by D2D carrying, initiatively or according to base station instruction initiates D2D discovery or D2D connection establishment process.
4. method according to claim 3, is characterized in that, a UE initiates link recover process voluntarily, comprising: a UE enters D2D RRC idle state, and initiates D2D discovery procedure or D2D connection establishment process.
5. method according to claim 4, is characterized in that, a UE initiates link recover process voluntarily, also comprises: the D2D communication link generation Radio Link Failure between UE informing base station the one UE and the 2nd UE.
6. method according to claim 4, is characterized in that, a UE initiates link recover process voluntarily, also comprises: D2D link bearer to be transformed between equipment and network node on D2N link by a UE.
7. the method according to claim 3,4,5 or 6, is characterized in that, a UE enters D2D RRC idle state, and while initiating D2D discovery procedure or D2D connection establishment process, the method also comprises:
One UE opens D2D link-recovery timer, and when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
8. method according to claim 1, is characterized in that, the method also comprises:
One UE is carrying out in D2D communication process with the 3rd UE, determines that the Radio Link Failure occurred in this D2D communication process does not need by a UE process;
One UE indicates according to base station side, enters D2D RRC idle state, monitors the request signal in D2D discovery signal or D2D connection establishment process.
9. method according to claim 8, is characterized in that, the method also comprises:
One UE is according to the instruction of described base station, and D2N link between apparatus for establishing and network node, is transformed into D2D carrying in D2N carrying.
10. method according to claim 1, is characterized in that, the method also comprises:
After D2D when between a UE with the 3rd UE communicates and Radio Link Failure occurs, determine that this Radio Link Failure does not need by a UE process;
One UE enters D2D RRC idle state, monitors the request signal in D2D discovery signal or D2D connection establishment initial procedure.
Method described in 11. according to Claim 8 or 10, is characterized in that, a UE enters D2DRRC idle state, and while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, the method also comprises:
One UE opens D2D link-recovery timer, and when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
The processing method of 12. 1 kinds of Radio Link Failure, is characterized in that, the method comprises:
Base station is determined to carry out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at first user equipment UE and the 2nd UE;
Base station notifies that a UE carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
13. methods according to claim 12, it is characterized in that, the method also comprises:
Base station notifies that described 2nd UE carries out, in the process that D2D communicates, not needing by the 2nd UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
14. methods according to claim 12, it is characterized in that, the method also comprises:
Base station receives the notice of the D2D communication link generation Radio Link Failure between a UE of a UE transmission and the 2nd UE.
15. methods according to claim 14, is characterized in that, after base station receives described notice, the method also comprises: base-station ceases is to the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE.
16. methods according to claim 15, is characterized in that, base-station ceases is to after the D2D Resourse Distribute of the D2D link between a UE and the 2nd UE, and the method also comprises:
Link recover process is initiated in base station.
17. methods according to claim 16, is characterized in that, link recover process is initiated in base station, comprising:
The base station described UE of instruction and the 2nd UE stops D2D communication process, and sets up D2N link.
18. methods according to claim 16, is characterized in that, link recover process is initiated in base station, also comprises:
Base station stops D2D communication process at the described UE of instruction and the 2nd UE, and after setting up D2N link, base station instruction the one UE opens D2D discovery procedure or D2D connection establishment process, and indicates the 2nd UE to monitor D2D discovery procedure or D2D connection establishment process.
The processing unit of 19. 1 kinds of Radio Link Failure, is characterized in that, this device comprises:
First determination module, after communicating Radio Link Failure occurs, determines that this Radio Link Failure needs by a UE process for the D2D when between a UE with the 2nd UE;
First processing module, for processing for this Radio Link Failure.
20. devices according to claim 19, is characterized in that, described first determination module determine this Radio Link Failure need by a UE process time, specifically for:
According to the instruction of base station side, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE initiating D2D communication request, determine that this Radio Link Failure needs by a UE process; Or,
When a UE is the UE as transmit layer 2 packet or IP packet in D2D communication, determine that this Radio Link Failure needs by a UE process.
21. devices according to claim 19, is characterized in that, described first processing module, specifically for:
Initiate link recover process voluntarily; Or,
D2D communication link generation Radio Link Failure between informing base station the one UE and the 2nd UE, and according to the instruction of base station, stop the D2D link between a UE and the 2nd UE, enter D2D RRC idle state, and according to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed in D2N carrying by D2D carrying, initiatively or according to base station instruction initiates D2D discovery or D2D connection establishment process.
22. devices according to claim 21, it is characterized in that, when described first processing module is used for initiating link recover process voluntarily, described first processing module, specifically for: make a UE enter D2D RRC idle state, and initiate D2D discovery procedure or D2D connection establishment process.
23. devices according to claim 22, it is characterized in that, when described first processing module is used for initiating link recover process voluntarily, described first processing module, also for D2D communication link generation Radio Link Failure between informing base station the one UE and the 2nd UE.
24. devices according to claim 22, is characterized in that, when described first processing module be used for voluntarily initiate link recover process time, described first processing module, also for: D2D link bearer is transformed into D2N link between equipment and network node.
25. devices according to claim 21,22,23 or 24, it is characterized in that, described first processing module also for: enter D2D RRC idle state making a UE, and while initiating D2D discovery procedure or D2D connection establishment process, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
26. devices according to claim 19, is characterized in that, this device also comprises:
Second determination module, for carrying out in D2D communication process at a UE and the 3rd UE, determines that the Radio Link Failure occurred in this D2D communication process does not need by a UE process;
Second processing module, for according to base station side instruction, triggers a UE and enters D2D RRC idle state, monitor the request signal in D2D discovery signal or D2D connection establishment process.
27. devices according to claim 26, is characterized in that, described second processing module also for:
According to the instruction of described base station, D2N link between apparatus for establishing and network node, is transformed into D2D carrying in D2N carrying.
28. devices according to claim 19, it is characterized in that, described second processing module also for: enter D2D RRC idle state at triggering the one UE, while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
29. devices according to claim 19, is characterized in that, this device also comprises:
3rd determination module, after communicating Radio Link Failure occurs, determines that this Radio Link Failure does not need by a UE process for the D2D when between a UE with the 3rd UE;
3rd processing module, enters D2D RRC idle state for triggering a UE, monitors the request signal in D2D discovery signal or D2D connection establishment initial procedure.
30. devices according to claim 29, it is characterized in that, described 3rd processing module also for: enter D2D RRC idle state at triggering the one UE, while monitoring the request signal in D2D discovery signal or D2D connection establishment initial procedure, open D2D link-recovery timer, when described D2D link-recovery timer expiry, whether prompting user continues to perform D2D link recover process.
The processing unit of 31. 1 kinds of Radio Link Failure, is characterized in that, this device comprises:
Determination module, carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at first user equipment UE and the 2nd UE for determining;
Notification module, for notifying that a UE carries out, in the process that D2D communicates, needing by a UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
32. devices according to claim 31, is characterized in that, described notification module also for:
Notify that described 2nd UE carries out, in the process that D2D communicates, not needing by the 2nd UE process for the Radio Link Failure occurred at a UE and the 2nd UE.
33. devices according to claim 31, is characterized in that, this device also comprises:
Receiver module, for receiving the notice of the D2D communication link generation Radio Link Failure between a UE of a UE transmission and the 2nd UE.
34. devices according to claim 33, is characterized in that, this device also comprises:
Processing module, for after described receiver module receives described notice, stops the D2D Resourse Distribute to the D2D link between a UE and the 2nd UE.
35. devices according to claim 34, is characterized in that, described processing module also for: after stopping D2D Resourse Distribute to the D2D link between a UE and the 2nd UE, initiate link recover process.
36. devices according to claim 35, is characterized in that, described processing module initiate link recover process time, specifically for:
Indicate a described UE and the 2nd UE to stop D2D communication process, and set up D2N link.
37. devices according to claim 35, is characterized in that, described processing module initiate link recover process time, also for:
Stop D2D communication process at the described UE of instruction and the 2nd UE, and after setting up D2N link, instruction the one UE opens D2D discovery procedure or D2D connection establishment process, and indicate the 2nd UE to monitor D2D discovery procedure or D2D connection establishment process.
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