CN107889145A - Switching method and device - Google Patents

Abstract

The embodiment of the invention discloses a kind of switching method, methods described includes：At least one handover triggering condition is obtained by base station to configure, the handover triggering condition configuration includes handover trigger event and trigger parameter corresponding with the handover trigger event；Reception signal is measured, when meeting trigger parameter corresponding to the handover trigger event at least one handover triggering condition configuration when the measured value for the reception signal that measurement obtains, it is determined that carrying out the switching of cell or wave beam.Using the present invention so that a variety of handover triggering conditions configuration that user terminal can issue according to base station independently determines the need for carrying out the switching of cell or wave beam in multi-signal declines scene, so as to improve the flexibility of handover mechanism.

Description

Switching method and device

Technical field

The present invention relates to communication technical field, more particularly to a kind of switching method and device.

Background technology

With the development of the communication technology, increasing radio communication service needs the support of high reliable under high-speed. In the radio communication of conventional art, when user terminal moves between different cell coverage areas, in order to keep the company of communication Continuous property, it is necessary to which to be switched to another signal intensity preferable when the signal intensity between the cell being currently connected is weaker Cell, so as to ensure that radio communication will not be interrupted.

However, it is contemplated that in the Radio Resource of high band during transmission services, the nature of radio propagation of high band has its limitation Property：Weak fast, radio transmission is easily affected by the surrounding environment, for example is blocked.The wireless coverage of high band can so be caused Area is smaller.Wave beam (beam) is formed to improve the area of coverage size of high frequency using multiple antennas in current research.But due to height The characteristic of frequency, when thering is object to block between Receiver And Transmitter to be wirelessly transferred, wireless signal comparison occurs rapidly with And the decline that amplitude is larger, referred to as obstruction decline (block declines).Block declines compared to it is common due to distance become it is remote and Caused decline, the rapidity of fading is fast, and the amplitude of fading is big.

In the conventional technology, user terminal, which judges whether to switching, is determined by the base station of network side, base station according to The measurement report of user terminal uploads determines the need for switching over (switching between the switching of minizone or wave beam), Ran Houtong Know that user terminal switches over, but in the case of foregoing obstruction decline, because the rapidity of fading is fast, and because object stops yes Network side can not notify user terminal to switch in time, it is necessary to which user terminal voluntarily determines whether according to a variety of fading profiles Need to switch over.But the user terminal in conventional art does not have and voluntarily determines to need the mechanism switched over so that User terminal can not voluntarily determine the need for switching over according to the situation that reception signal declines, and result in the spirit of handover mechanism Active deficiency.

The content of the invention

Based on this, to solve to need to determine whether to switch over by network side in conventional art, user terminal can not basis Different signal fadeout situations decides the technical problem of handover mechanism flexibility deficiency caused by switching in its sole discretion, and spy proposes one Kind switching method.

First aspect of the embodiment of the present invention provides a kind of switching method, and the execution of this method is based on user terminal, including：

User terminal obtains at least one handover triggering condition by base station and configured, and the handover triggering condition configuration includes Handover trigger event and trigger parameter corresponding with the handover trigger event；

User terminal measurement reception signal, the measured value of reception signal is obtained, by the measured value of reception signal and at least one Kind handover triggering condition configuration is compared, when the measured value for the reception signal that measurement obtains meets that at least one switching is tactile Corresponding to handover trigger event in the configuration of clockwork spring part during trigger parameter, it is determined that carrying out the switching of cell or wave beam.User terminal After it is determined that carrying out the switching of cell or wave beam, Target cell or wave beam can be first determined, then by affiliated cell-of-origin or ripple Beam switches to Target cell or wave beam.

With reference to the implementation of first aspect of the embodiment of the present invention, in the first possible implementation, user terminal Compared with can concurrently the measured value of reception signal be configured with each handover triggering condition.

Configured for any handover triggering condition, user terminal configures the reception signal in the handover triggering condition Handover trigger event under the measured value trigger parameter corresponding with the handover trigger event that measures to obtain matched, if Match somebody with somebody, then user terminal judges the measured value and the handover triggering condition configurations match；

When the measured value of the reception signal is with any set handover triggering condition configurations match, user terminal judges The measured value for the reception signal that measurement obtains meets the handover trigger event pair at least one handover triggering condition configuration The trigger parameter answered.

That is, user terminal can concurrently by the measured value of reception signal and each handover triggering condition configure into Row compares, and when measured value and any handover triggering condition configurations match, then judges that the measured value of reception signal meets to carry out The condition of switching.

With reference to the implementation of first aspect of the embodiment of the present invention, in second of possible implementation, the switching Also include metering system corresponding with the handover trigger event in trigger condition configuration, the metering system comprises at least measurement At least one of cycle, filter factor, measurement parameter type and filtering mode；

User terminal can the survey according to corresponding to the handover trigger event that at least one handover triggering condition configuration includes Amount mode measures to the reception signal, obtains the measured value of the reception signal.

That is, user terminal concurrently by the measured value of reception signal and each handover triggering condition configure into When row compares, the measured value of reception signal is all that the metering system included in a kind of handover triggering condition configuration corresponding to enters Row measurement obtains, the measured value of the reception signal of the detection thus made all when handover triggering condition with compared with configure Related, so as to improve flexibility.

With reference to the implementation of first aspect of the embodiment of the present invention, in the third possible implementation, the switching Trigger event includes the first handover trigger event.

First handover trigger event is the strong of the source channel signal of the affiliated cell-of-origin that determination detects or wave beam Spend the intensity level declined in default first duration parameters and be more than or equal to the first thresholding；First handover trigger event pair The trigger parameter answered includes first duration parameters and first thresholding.

First handover trigger event can be used for the situation of detection obstruction decline, when the signal fadeout of cell-of-origin or wave beam is very fast When, the measured value detected can meet the trigger parameter of first handover trigger event, so as to may be such that user terminal can be certainly Main ground is quick to be determined to need the switching for carrying out cell or wave beam.

In addition, handover trigger event may also include the second handover trigger event, the second handover trigger event can be used for detecting Common decline, the affiliated cell-of-origin or the low intensity of the source channel signal of wave beam that the second handover trigger event detects for determination In the second thresholding；Trigger parameter corresponding to second handover trigger event includes the second thresholding.That is, when what measurement obtained connects When the signal intensity of the source channel signal of the collection of letters number is too low, it can determine that needs switch over.Such as when user terminal is small away from source Qu Shi, signal fadeout amplitude are larger, it may be determined that needs switch over.

In addition, handover trigger event may also include the 3rd handover trigger event, the 3rd handover trigger event can also be used for examining Common decline is surveyed, the affiliated cell-of-origin or the intensity of the source channel signal of wave beam that the 3rd handover trigger event detects for determination Less than the intensity of adjacent channel signals, and the absolute value of the difference of the intensity of source channel signal and the intensity of adjacent channel signals is more than Three thresholdings；Trigger parameter corresponding to 3rd handover trigger event includes the 3rd thresholding.That is, when the reception that measurement obtains is believed Number source channel signal signal intensity less than adjacent cell or wave beam side channel intensity when, can determine that needs switch over.Example Such as, during user terminal is moved to adjacent cell by cell-of-origin, the signal intensity of adjacent cell is increasingly greater than the signal of cell-of-origin Intensity, it can determine that user terminal needs to switch over.

It follows that handover triggering condition configuration can correspond to polytype handover trigger event, it is respectively suitable for detecting The situation of multi-signal decline, user terminal then can configure independently to enter multi-signal fading profiles according to handover triggering condition Whether row judges, need to switch over so as to quickly determine.

It is described to pass through in the 4th kind of possible implementation with reference to the implementation of first aspect of the embodiment of the present invention Base station, which obtains at least one handover triggering condition configuration, to be included：

Receive at least one decline report information corresponding with affiliated cell-of-origin or wave beam that base station is sent, the decline Report information includes fading type corresponding with the cell-of-origin or wave beam；Obtain the decline class that the decline report information includes Handover triggering condition corresponding to type configures.

That is, polytype handover triggering condition configuration has been stored on user terminal, and each type Handover triggering condition configuration be corresponding with corresponding fading type, such as the scene such as trees, automobile, building, base station need not The configuration of complete handover triggering condition is sent to user terminal, it is corresponding can to notify that user terminal uses by indicating fading type Handover triggering condition configuration detected.The data volume reduction that user terminal is handed down in base station is so allowed for, improves band Wide utilization rate.

In addition, the configuration of at least one handover triggering condition also directly can be sent to user terminal by base station, for example, user is whole End can receive at least one switching that base station issues by radio resource control RRC signaling or medium access control MAC layer signaling Trigger condition configures, also can be by aiding in band channels to receive at least one handover triggering condition configuration that base station issues.

With reference to the implementation of first aspect of the embodiment of the present invention, in the 5th kind of possible implementation, the determination Also include after the switching of cell or wave beam：

User terminal determines object beam when it is determined that carrying out the switching of wave beam, and sending switching to the object beam please Ask, the object beam completes switching after handover request is received.And in the scene of cell switching, then also need to user The data transmission state of user terminal is sent to the Target cell for determining switching by the cell-of-origin of terminal.

With reference to the implementation of first aspect of the embodiment of the present invention, in the 6th kind of possible implementation, the determination Also include after the switching of cell or wave beam：

User terminal determines object beam when it is determined that carrying out the switching of wave beam, by aiding in band channels to affiliated Source wave beam sends measurement report, completes to switch according to the measurement report and the object beam by the source wave beam.And small In the scene of area's switching, then the data transmission state of user terminal is sent to determination switching by the cell-of-origin for also needing to user terminal Target cell.

With reference to the implementation of first aspect of the embodiment of the present invention, in the 7th kind of possible implementation, methods described Also include：

User terminal receives the candidate cell configuration information that base station is sent, and determines to wait according to the candidate cell configuration information Cell is selected, the candidate cell is to be provided with Signaling Radio Bearer information, Data Radio Bearer information and physical layer configurations in advance The adjacent cell of at least one of information；

User terminal can also determine Target cell, switch when it is determined that carrying out the switching of cell in the candidate cell To the Target cell.

User terminal can be measured to the signal of cell-of-origin and adjacent cell in advance, and measurement report is sent into base station, Base station can selected section or whole cells be small as the candidate of user terminal in the adjacent cell of user terminal according to measurement report Area, and pre-configured Signaling Radio Bearer information, Data Radio Bearer information and physical layer configurations information on all candidate cells At least one of, when selection target cell switches over user terminal in candidate cell, cell-of-origin need not then exist again Configuration signal radio bearer information, Data Radio Bearer information or physical layer configurations information, cut so as to accelerate on Target cell Throw-over degree.

With reference to the implementation of first aspect of the embodiment of the present invention, in the 8th kind of possible implementation, methods described Also include：

User terminal receives the cell of base station transmission or the preconfigured messages of beam selection, the cell select pre-configured Degree of congestion information corresponding to cell-of-origin or wave beam and at least one adjacent cell or wave beam belonging to including in message；Detection institute The adjacent cell included in the preconfigured messages of cell or beam selection or the respective signal intensity of wave beam are stated, according to the cell-of-origin Or wave beam and each adjacent cell or each self-corresponding signal intensity of wave beam and the progress cell selection of degree of congestion information.

When user terminal because handoff failure enters RLF patterns, and from RLF patterns recovered when, for example, user terminal When having moved out the region of dtr signal, user terminal needs to carry out cell selection or gravity treatment.User terminal is carrying out cell choosing When selecting with gravity treatment, adjacent cell or the signal intensity of wave beam are not only referred to, it is also necessary to consider the fading probability of adjacent cell or wave beam, User terminal can be weighted to obtain each adjacent cell or ripple according to the signal intensity and fading probability of each adjacent cell or wave beam The evaluation of estimate of the quality of connection of beam, then select the high adjacent cell of evaluation of estimate or wave beam is selected or gravity treatment, so that with The cell of family terminal selection is the of a relatively high cell of reliability, so as to improve the reliability of communication system.

Second aspect of the embodiment of the present invention additionally provides a kind of switching device, and the switching device can be that user terminal also may be used To be disposed on the device inside user terminal.The function of the switching device can be realized by hardware, can also pass through hardware Corresponding software is performed to realize.The hardware or software include one or more modules corresponding with above-mentioned function phase.

In a kind of possible implementation of second aspect, the device includes multiple functional modules, above-mentioned for realizing Any of first aspect switching method so that user terminal can configure on one's own initiative according at least one handover triggering condition Reception signal is measured, it is determined that needing to carry out the switching of cell or wave beam, so that can be actively fast under the scene of multi-signal decline Switch over fastly, improve flexibility.

In a kind of possible implementation of second aspect, the structure of the user terminal includes processor, transceiver And communication module, the processor are configured as supporting user terminal to perform corresponding function in above-mentioned switching method.It is described Transceiver is used to support the communication between user terminal and base station, and communication module is used to support that user terminal is above-mentioned to base station transmission Involved information or instruction in switching method.Memory can also be included in user terminal, the memory is used for and place Device coupling is managed, it preserves user terminal and performs the necessary programmed instruction of above-mentioned switching method and data.

In addition, to solve to need to determine whether to switch over by network side in conventional art, user terminal can not be according to not Same signal fadeout situation decides the technical problem of handover mechanism flexibility deficiency caused by switching in its sole discretion, and spy proposes one kind Switching method.

The third aspect of the embodiment of the present invention provides a kind of switching method, the base station of the execution based on network side of this method, Including：

Obtain the configuration of at least one handover triggering condition, the handover triggering condition configuration include handover trigger event and Trigger parameter corresponding with the handover trigger event；

Target terminal is determined, measures the upward signal of the target terminal；When measurement obtain the target terminal it is upper The measured value of row signal meets trigger parameter corresponding to handover trigger event at least one handover triggering condition configuration When, determine that the target terminal carries out the switching of cell or wave beam.

After the base station of network side determines the switching that target terminal carries out cell or wave beam, target terminal can be notified to be cut Change, can not also notify, but configured in advance in the adjacent cell of target terminal so that target terminal can rapidly switch to adjacent small Area.

With reference to the implementation of the third aspect of the embodiment of the present invention, in the first possible implementation, methods described Also include：

Base station can receive the measurement report that the target terminal uploads, according to the measurement report in the target terminal Candidate cell is determined in adjacent cell；On the candidate cell configuration signal radio bearer information, Data Radio Bearer information and At least one of physical layer configurations information, and the candidate cell is sent to the target by candidate cell configuration information Terminal.

Configuration signal radio bearer information, data are wirelessly held in the part or all of adjacent cell of target terminal in advance for base station After in information carrying breath or physical layer configurations information, target terminal is when switching to adjacent cell, it is not necessary to is waiting base station adjacent small The information is configured in area, so as to improve switch speed.

With reference to the implementation of the third aspect of the embodiment of the present invention, in second of possible implementation, methods described Also include：It is described to determine that the target terminal also include after the switching of cell or wave beam：

The data transmission state of the target terminal is believed when it is determined that the target terminal carries out the switching of cell base station Breath is sent to the adjacent cell or candidate cell of the target terminal.

Data transmission status information can be sent to by base station in advance when it is determined that the target terminal carries out the switching of cell All adjacent cells or candidate cell of the target terminal, no matter target terminal have selected which adjacent cell or candidate cell is made To switch target, the data transmission status information of target terminal can be configured in advance in advance, this allows for target terminal The transmission time of data transmission status information is withouted waiting in switching, so as to improve the speed of switching.

Fourth aspect of the embodiment of the present invention additionally provides a kind of switching device, and the switching device can be base station, can also It is disposed on the device of inside of base station.The function of the switching device can be realized by hardware, can also perform phase by hardware The software answered is realized.The hardware or software include one or more modules corresponding with above-mentioned function phase.

In a kind of possible implementation of fourth aspect, the device includes multiple functional modules, above-mentioned for realizing Any of third aspect switching method so that base station can configure measurement according at least one handover triggering condition and receive letter Number, determine whether target terminal needs to carry out the switching of cell or wave beam, so as to shift to an earlier date under the scene of multi-signal decline Judge whether target terminal has the demand for carrying out cell or beam switchover, so as to carry out the beam worker of target terminal switching in advance Make, accelerate switch speed of the target terminal in switching.

In the alternatively possible implementation of fourth aspect, the structure of the base station include processor, transceiver with And communication module, the processor are configured as supporting base station to perform corresponding function in above-mentioned switching method.The transceiver For supporting base station and as the communication between the user terminal of target terminal, communication module is used to support base station and other networks The communication of entity, such as the communication with equipment of the core network or other network equipments, or the communication between base station.May be used also in the base station So that including memory, the memory is used to couple with processor, and it preserves base station and performs the above-mentioned necessary program of switching method Instruction and data.

5th aspect, the embodiments of the invention provide a kind of computer-readable storage medium, for saving as above-mentioned second aspect Computer software instructions used in the user terminal of offer, it, which is included, is used to perform designed by the switching method of above-mentioned first aspect Program.

6th aspect, the embodiments of the invention provide a kind of computer-readable storage medium, for saving as above-mentioned fourth aspect Computer software instructions used in the base station of offer, it, which is included, is used to perform the journey designed by the switching method of the above-mentioned third aspect Sequence.

Implement the embodiment of the present invention, will have the advantages that：

After employing above-mentioned switching method and device, base station can will be respectively suitable for cutting for polytype signal fadeout Change trigger condition configuration and be sent to user terminal, for example, the handover triggering condition suitable for common signal fadeout can both be sent The handover triggering condition configuration that configuration and also transmission are applied to signal jam decline faster is sent to user terminal, user Whether terminal relatively can need to carry out by the way that the measured value of reception signal is configured with a variety of handover triggering conditions come active decision Switching so that user terminal can be when different fading profiles occurs in reception signal, according to different handover triggering condition configurations certainly Whether main decision-making, which needs, switches over, the notice without waiting network side base station, so as to improve the flexible of handover mechanism Property.

In addition, user terminal can be applicable when rapidly obstruction decline occurs in reception signal by what base station issued in advance Discover in time in the handover triggering condition configuration of signal jam decline faster, and promptly switch to adjacent cell or ripple Beam, so as to prevent due to switch it is out of touch with cell-of-origin not in time and caused by user terminal enter Radio Link Failure RLF State, when can ensure that user is obscured by an object in communication process, remain to be rapidly switched to other cells or wave beam, will not make Dropped calls are obtained, so as to improve the reliability of communication system.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Wherein：

Fig. 1 is the timing diagram of the handoff procedure that network side decision-making switches in conventional art；

Fig. 2 is the obstruction decline of signal in the embodiment of the present invention and the fading characteristic schematic diagram commonly to decline；

Fig. 3 is the MPS process schematic diagram of mobile communications network in the embodiment of the present invention；

Fig. 4 is a kind of flow chart of the switching method performed in the embodiment of the present invention based on user terminal；

Fig. 5 is the schematic diagram for dividing wave beam in the embodiment of the present invention according to aerial radiation direction；

Fig. 6 is the source wave beam of user terminal and the schematic diagram of the neighbouring relations of adjacent wave beam in the embodiment of the present invention；

Fig. 7 is the schematic diagram that the barrier in the embodiment of the present invention in the range of cell causes obstruction to decline；

Fig. 8 is the schematic diagram of the measured value of parallel measurement reception signal in the embodiment of the present invention；

Fig. 9 be the embodiment of the present invention in user terminal actively determine Target cell and switch to the process of Target cell when Sequence figure；

Figure 10 is that user terminal determines Target cell by cell-of-origin and switches to Target cell in the embodiment of the present invention The timing diagram of process；

Figure 11 is that base station is that the adjacent cell of user terminal determines the timing diagram of candidate cell in advance in the embodiment of the present invention；

Figure 12 is the flow chart of another switching method performed in the embodiment of the present invention based on network side；

Figure 13 is a kind of schematic diagram for the switching device for being applied to user terminal in the embodiment of the present invention；

Figure 14 is a kind of schematic diagram for the switching device for being applied to base station in the embodiment of the present invention；

Figure 15 is a kind of user terminal of switching method of execution aforementioned applications in user terminal in the embodiment of the present invention Schematic diagram；

Figure 16 is a kind of schematic diagram of the base station of switching method of execution aforementioned applications in base station in the embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

Technology described in the embodiment of the present invention can be used for various wireless communication systems, such as global system for mobile communications 2G (2ed Generation) systems such as (Global System for Mobile communications, GSM), broadband code Divide the 3G systems such as multiple access (Wideband Code Division Multiple Access Wireless, WCDMA) system；It is long The 4G systems such as phase evolution (Long Term evolution, LTE) system, using new wireless access technology (New RAT) communication 4.5G the or 5G systems such as system.Wherein, the LTE system of evolution is included using New RAT communication system, or other use 4.5G Or communication system of the 5G communication technologys etc., this is not limited.

The present embodiments relate to base station can be base transceiver station (Base Transceiver in GSM or CDMA Station, BTS) or WCDMA in node B (NodeB), can also be in LTE evolved node B (NodeB or ENB or e-NodeB, evolved Node B), or the similar base station equipment in the communication system of the follow-up evolution of LTE.

User terminal involved by the embodiment of the present invention can include the handheld device with radio communication function, vehicle-mounted Equipment, wearable device, computing device or the other processing equipments for being connected to radio modem, and various forms of use Family equipment (user equipment, UE), mobile station (mobile station, MS), terminal (terminal), terminal device (terminal equipment) etc..

In the embodiment that one is switched by network side decision-making, the process whether cell needs to switch over refers to Fig. 1 It is shown, in Fig. 1, determine whether user terminal needs to switch over and be switched to which Target cell, user by network side Terminal first timing or the signal and mesh that cell-of-origin is measured after the control instruction of base station or other network side elements is received The signal intensity of cell is marked, measurement report is generated, measurement report is uploaded to by cell-of-origin by the up-link of cell-of-origin, source is small Whether Qu Ze needs to issue switching command to user terminal according to measurement report decision-making.Issue and cut to user terminal in cell-of-origin After changing instruction, user terminal then switches to Target cell.

However, as knowable to Such analysis, it refer to shown in Fig. 2, the decline for the signal that certain user's terminal receives at least is wrapped Include two kinds of situations：Situation 1, when user is moved to the area under one's jurisdiction of Target cell by the area under one's jurisdiction of cell-of-origin, the source of user terminal reception The signal of cell generally gradually slowly weakens with the area under one's jurisdiction away from cell-of-origin, also cries the common decline of signal；Situation 2, When user's handset user terminal enters the dead angle of cell-of-origin covering, the signal channel between the antenna of cell-of-origin is built When thing, trees, automobile stop, significantly declining would generally occur in a short time in the signal for the cell-of-origin that user terminal receives, Make the obstruction of signal decline, be generally easier in the case of high frequency channel occur (high frequency channel transmit when, carrier frequency is higher, wavelength It is shorter, it is not easy to diffraction, to be easily blocked by the body).

In this embodiment, for situation 2, because when user terminal voluntarily can not switch in decision-making, if still using The switching mode of conventional art shown in Fig. 1 switches over, then with reference also to shown in Fig. 1, when the user terminal of user is uploading , it is necessary to which the switching command for waiting network side cell-of-origin to issue can just switch over after measurement report, cut if being issued in cell-of-origin Change before instruction, happens is that the block declines of situation 2, then the signal for the cell-of-origin that user terminal receives is big in a short time Width declines so that user terminal does not receive the switching command that cell-of-origin issues, and so as to switch to Target cell, this just leads The flexibility deficiency of handover mechanism is caused.And because user terminal does not receive the signal of cell-of-origin yet, now, user terminal will Into RLF states, it is necessary to which the flow into re-selecting cell could be recovered to converse, when this allows for user and needs to wait longer Between, reliability is relatively low.

Dumb to solve the handover mechanism in conventional art, whether user terminal voluntarily decision-making can not need to switch over Technical problem, spy proposes a kind of switching method.User terminal of the execution of this method based on accessing mobile communication network, example Such as mobile phone or wireless data module 2G or 3G or 4G communication equipment is installed.It refer to shown in Fig. 3, Fig. 3 describes we The application scenarios that method performs, in figure 3, the cell of user terminal access are the cell-of-origin belonging to the user terminal, simultaneously because The transmission of mobile communication depends on wireless channel, therefore user terminal can also receive and be in adjacent small with cell-of-origin adjacent position The signal in area, and it can be seen from the characteristic of mobile communications network, the channel between neighbor cell is different, and neighbor cell can correspond to phase Same base station or different base stations.User terminal can switch between cells, if for example, the cell-of-origin of user terminal access is small Area 1_1, then when user terminal is moved to cell 2_4 by cell 1_1, switch in cell 2_4, the base as corresponding to cell 2_4 Resource of standing provides service for the communication service of user terminal.

Specifically, as shown in figure 4, the switching method includes：

Step S402：User terminal obtains at least one handover triggering condition by base station and configured, the handover triggering condition Configuration includes handover trigger event and trigger parameter corresponding with the handover trigger event.

Handover triggering condition configuration is the reference conditions whether indicating user terminal switches.In the present embodiment, Handover triggering condition configuration can be handed down to user terminal by being eNB in base station, such as LTE system, and the handover trigger issued Condition configuration can be a kind of or more than one.Handover triggering condition configuration includes handover trigger event and cut with this Change trigger parameter corresponding to trigger event.Handover trigger event be user terminal when judging whether to need to switch over, need The condition that the measured value for the signal received to be determined meets, trigger parameter corresponding to handover trigger event are to need to meet Conditional parameter.When the measured value of reception signal matches with the trigger parameter under a certain item handover trigger event, then mean The measured value of reception signal has matched the handover trigger event.

In the present embodiment, the handover triggering condition configuration that base station issues can include one or more kinds of switchings and touch Clockwork spring part configures, and a part is used to detect obstruction decline, and a part is used to detect common decline.So allowed for user terminal both Adjacent cell can be entered by cell-of-origin in user terminal, the intensity generation of the signal of the cell-of-origin received is relatively slowly general Switched over during logical decline, it is also possible that user terminal when being blocked, is rapidly switched to the letter of adjacent cell not being blocked On number, without entering RLF states.

In the present embodiment, user terminal can pass through radio resource control RRC signaling or medium access control MAC layer signaling At least one handover triggering condition configuration that base station issues is received, can also be issued at least by aiding in band channels to receive base station A kind of handover triggering condition configuration.

That is, user terminal can establish the link of one or more with the base station of cell-of-origin, and include high band link With low-frequency range link, high band link is used to transmit data, and low-frequency range link is used to transmit control information, due to the nothing of low-frequency range Line signal wavelength is longer, and diffraction property is good, and situation about being blocked is fewer, still can be with when high band link declines Auxiliary band channels are used as by low-frequency range link and transmit control information, this guarantees control information to be reliably delivered to User terminal, so as to improve the reliability of system.

In another embodiment, can also prestore at least one handover triggering condition configuration on user terminal, by under base station The decline report information of hair specifies user terminal to carry out decline detection using the configuration of corresponding handover triggering condition, is specially：Connect Receive at least a set of decline report information corresponding with affiliated cell-of-origin or wave beam for issuing of base station, decline report information include with Fading type corresponding to cell-of-origin or wave beam, handover triggering condition corresponding to the fading type that extraction decline report information includes are matched somebody with somebody Put.

That is, the base station of network side can be used in broadcast message or RRC information by the report information instruction that declines Family terminal, (whether this cell often there is block or occurs block's the common block scenes of its cell-of-origin being currently accessed Probability, tree type, type of vehicle, the fading type of building type), then user terminal wraps according in decline report information Handover triggering condition workable for the fading type contained determines in a variety of handover triggering conditions configuration being locally stored configures.Example Such as, due to gap between leaf be present, when wireless signal is then passed through the shelter of tree type, intensity easily produces saltus step；And For the fading type of building type, such as high-wall, high building, user is blocked once entering, then usual signal intensity will drop As little as lower value, and lower value longer time will be maintained, and for the fading type of type of vehicle, due to vehicle volume compared with Small, time of the user terminal in the state that is blocked is shorter if user is to be in walking states, and wireless signal can be extensive quickly It is multiple normal.Therefore, the fading type formed for different shelters, can be configured using different handover triggering conditions to fit Match somebody with somebody, the base station of network side only needs to send corresponding fading type, and user terminal is that the fading type pair with receiving may be selected The handover triggering condition answered is configured to detect.

In addition, it can also be configured for base station by issuing different handover triggering conditions to determine to carry out cell switching or ripple Beam switches.Wave beam beam is one or several radiation directions of the antenna of base station, for example, in Figure 5, the spoke of the antenna of base station Penetrate direction and be divided into multiple wave beams, each wave beam has a numbering, and user terminal is according to the radiation direction of residing antenna Difference can be in different wave beams.When the measured value for the reception signal that user terminal measurement obtains meets the switching of cell switching When trigger condition configures, you can it is determined that carrying out cell switching；When the measured value for the reception signal that user terminal measurement obtains meets During the handover triggering condition configuration of beam switchover, you can it is determined that carrying out beam switchover.This allows for user terminal can voluntarily decision-making Cell switching or beam switchover are carried out, so that handover mechanism is more flexible.

Step S404：User terminal measurement reception signal, meet when the measured value of reception signal that measurement obtains described in extremely Corresponding to handover trigger event in a kind of few handover triggering condition configuration during trigger parameter, it is determined that carrying out cutting for cell or wave beam Change.

In the present embodiment, reception signal described in user terminal can be not only the source channel of affiliated cell-of-origin or wave beam Signal, the adjacent channel signals of the adjacent cell adjacent with cell-of-origin or wave beam can be also received, such as be answered what a cell switched With in scene, with reference to shown in figure 3, the user terminal in cell 1_1 can receive cell 1_1 adjacent cell：It is cell 1_2, small Area 1_3 and cell 2_4 broadcast signal (certainly, user terminal can equally receive cell 1_4,2_2,2_3 wireless signal, But because the wireless signal strength compared to cell-of-origin and adjacent cell is weaker, can not consider), the cell 1_1 residing for user terminal As cell-of-origin, the cell adjacent with cell 1_1：Cell 1_2, cell 1_3 and cell 2_4 are adjacent cell.Broadcast cell-of-origin Signal be source channel signal, the signal of adjacent cell broadcast is adjacent channel signals.

And in the application scenarios of another beam switchover, it refer to shown in Fig. 6, when user is moved to B points by A points, Beam2 can be switched to by beam1.When user terminal is in A point things, wherein beam1 is the source wave beam of user terminal, base station Channel signal in beam1 directions is source channel signal, beam2 and the adjacent wave beam that beam3 is user terminal, and base station exists The channel signal in beam2 and beam3 directions is adjacent channel signals.

In the present embodiment, user terminal can be by the measured value of reception signal and all handover triggering conditions stored Configuration is matched respectively, once find that the measured value of reception signal meets the requirement of some handover triggering condition configuration, then It is determined as reception signal and the handover triggering condition configurations match, so as to can determine that the switching for needing to carry out cell or wave beam.

Specifically, in foregoing at least one handover triggering condition configuration, configured for any handover triggering condition, The reception signal concurrently can be measured what is obtained by user terminal under the handover trigger event that the handover triggering condition configures Measured value trigger parameter corresponding with the handover trigger event is matched, if matching, judges the measured value and the switching Trigger condition configurations match.When the measured value of reception signal is with any set handover triggering condition configurations match, judgement measures To the measured value of reception signal meet to touch corresponding to the handover trigger event at least one handover triggering condition configuration Send out parameter.

For example, if two sets of handover triggering condition configurations are stored with user terminal：Configuration 1 and configuration 2, configuration 1 are used to examine Situation about commonly declining is surveyed, configuration 2 is used for the situation for detecting obstruction decline, then user terminal can concurrently calculate reception signal and exist Measured value 1 and reception signal under the handover trigger event that handover triggering condition 1 (hereinafter referred to as configuring 1) of configuration defines are being cut Change trigger condition and configure measured value 2 under the handover trigger event that defines of 2 (hereinafter referred to as configuring 2), concurrently by measured value 1 with The trigger parameter of the handover trigger event of the definition of configuration 1 is matched, and the handover trigger that measured value 2 is defined with configuration 2 The trigger parameter of event is matched, but as long as detecting any one matching in measured value 1 or measured value 2, that is, thinks to receive The measured value of signal matches with configuration 1 or configuration 2, so as to switch over operation.That is, either reception signal occurs Common decline or obstruction decline, can configure according to corresponding handover triggering condition and detect, and multiple handover trigger bars The logic of "or" can be used between part configuration, when the configuration of any one handover triggering condition matches with reception signal, you can enter Row switching.

It should be noted that the also one or more handover trigger of definable in the configuration of same handover triggering condition Event, when judging whether reception signal matches with the configuration of some handover triggering condition, the one or more switching is touched Can be used between the matching result of hair event " and ", logical expressions of "or" or other combinations judge whole handover trigger bar Whether part configuration matches.

For example, if the configuration of some handover triggering condition includes A, B and C3 handover trigger events, and predefined receive is believed Number it is Aor (B and C) with the logical expression of the handover triggering condition configurations match, then in reception signal in handover trigger thing Measured value under part B meets corresponding trigger parameter and the measured value under handover trigger event C meets corresponding trigger parameter When can determine that reception signal and the handover triggering condition configurations match, or in reception signal under handover trigger event A When measured value meets corresponding trigger parameter, reception signal and the handover triggering condition configurations match can determine that.

Specifically, in the present embodiment, to adapt to polytype decline, handover trigger event may include polytype. For example, in one embodiment, predefined handover trigger event may include the first handover trigger event.First handover trigger thing Part be more than to determine intensity level that the intensity of the source channel signal detected declines in default first duration parameters or Equal to the first thresholding；Trigger parameter corresponding to first handover trigger event includes first duration parameters and described first Thresholding.The intensity of source channel signal can be the amplitude size of source channel signal or with reference to signal to noise ratio or the bit error rate Source channel signal signal quality, the measurement parameter type during the value can be configured by handover triggering condition determines.

For example, the intensity level that the source channel signal that detectable user terminal receives declined in 1 second, if the intensity level is more than Threshold value, then it is assumed that source channel signal in 1 second there occurs larger decline, so as to judge the intensity decrease speed of source channel signal Comparatively fast, it is believed that there occurs obstruction to decline.

It refer to shown in Fig. 2 and Fig. 7, block a big feature of decline as when generation user terminal is blocked, due to The relative velocity that user terminal enters blindage is very fast, therefore the signal intensity that reception signal receives will be declined with faster speed The amplitude larger to one, therefore, the speed that measurable reception signal declines, so as to be declined according to the signal intensity of obstruction decline The situation of fireballing Characteristics Detection obstruction decline, is then quickly switched over.In Fig. 7, the cell-of-origin of user terminal access For cell 1_1, when user terminal is blocked by trees, the signal that can detect cell 1_1 declines larger amplitude in a short time, Now, may be selected to switch to access cell 2_4.

In one embodiment, predefined handover trigger event may also include the second handover trigger event, and described second The affiliated cell-of-origin or the intensity of the source channel signal of wave beam that handover trigger event detects for determination are less than the second thresholding；The Trigger parameter corresponding to two handover trigger events includes the second thresholding.

When source channel signal strength is in reduced levels in a long time, it can cause that receiving power is relatively low, and the bit error rate carries Height, therefore user terminal also can determine that needs switch at this moment.

In one embodiment, predefined handover trigger event may also include the 3rd handover trigger event；3rd switching The affiliated cell-of-origin or the intensity of the source channel signal of wave beam that trigger event detects for determination are strong less than adjacent channel signals Degree, and the absolute value of the difference of the intensity of source channel signal and the intensity of adjacent channel signals is more than the 3rd thresholding；3rd switching is touched Trigger parameter corresponding to hair event includes the 3rd thresholding.

Show with reference to figure 2, when user terminal accesses cell 1_1, adjacent cell 2_4 adjacent channel signals can be received, user is whole Difference of the comparable cell 1_1 in the end signal with adjacent cell 2_4 signal in intensity, if the difference meets the 3rd thresholding and dimension Hold the long period, then can determine that the area under one's jurisdiction for having entered cell 2_4 by cell 1_1 area under one's jurisdiction for user terminal, with cell 2_4's Distance is closer to can switch in cell 2_4.

Optionally, metering system corresponding with handover trigger event, the measurement are also included in handover triggering condition configuration Mode comprises at least at least one of measurement period, filter factor, measurement parameter type and filtering mode；Measurement parameter type Include the type of signal intensity or the type of signal quality, the measurement for the signal intensity of instruction user measurement reception signal The measured value of the signal quality of value or measurement reception signal.User terminal can configure according at least one handover triggering condition to be included Handover trigger event corresponding to metering system the reception signal is measured, obtain the measured value of the reception signal. With reference to shown in figure 8, for reception signal, user terminal can be divided into multichannel and be detected, and be corresponded to per reception signal all the way different Handover triggering condition configures, and according to measurement period, filter factor, the measurement parameter of corresponding handover triggering condition configuration definition The metering system of type and filtering mode concurrently measures, so as to obtain the switching in the handover triggering condition configuration definition Measured value under trigger event, that then result further according to multi-way detecting obtains reception signal and handover triggering condition configures The switching of progress cell or wave beam is determined with result.

In the present embodiment, user terminal, can be in adjacent cell or wave beam after it is determined that carrying out cell or beam switchover Target cell or wave beam are determined, is then switched in Target cell or wave beam.Target cell is determined in adjacent cell or wave beam Mode may include it is a variety of, for example, the most strong adjacent cell of signal intensity or wave beam may be selected as Target cell progress in user terminal Switching, after also can notifying cell-of-origin or wave beam, by cell-of-origin or wave beam in adjacent cell or wave beam selection target cell, and lead to Know user terminal, can also consider the factor true ground such as stability of adjacent cell signal target simultaneously in the case where considering signal intensity Cell.

For example, the base station of network side can count the degree of congestion information under each cell or wave beam, and by user terminal Adjacent cell or the degree of congestion information of wave beam are handed down to user terminal.Degree of congestion information may include the cell that base station counts in advance Or the obstruction fading probability of obstruction decline occurs corresponding to wave beam, the letter such as decline value or decay time when obstruction decline occurs Breath, it is the evaluation information of cell or wave beam degree of congestion.After signal intensity and degree of congestion information are weighted by user terminal Evaluation of estimate is obtained, optimal adjacent cell or wave beam are then selected as Target cell according to evaluation of estimate.For example, in an applied field Jing Zhong, as shown in Fig. 2 user terminal, it is determined that during Target cell, the signal intensity detected is respectively that cell 2_4 is more than cell 1_2 is more than cell 1_3, but in the degree of congestion information that issues of base station, skyscraper is more in cell 2_4, the generation of statistics It is higher to block the probability of decline, and cell 1_2 area under one's jurisdiction is playground landform, the probability of the generation obstruction decline of statistics is relatively low, because This, user terminal in selection target cell, also can not the good cell 2_4 of selection signal intensity as switching Target cell, And selection signal intensity is slightly poor, but the relatively low cell 1_2 of degree of congestion information is as Target cell.

Further, in the application scenarios of a cell switching, user terminal can also upload measurement report in advance, measurement Include the information such as cell-of-origin and the signal quality of part or all of adjacent cell or the signal intensity of user terminal, base station in report Can also be that selected section cell is as candidate cell in adjacent cell for user terminal according to the measurement report, and on candidate cell Configuration signal radio bearer SRB (Signalling Radio Bearer), Data Radio Bearer DRB (DataRadio Bearer) information or physical layer configurations information are (for example, physical layer configurations information can be special preamble preamble or specially At least one of with scheduling resource), candidate cell configuration information is then handed down to user terminal, user terminal receives time After selecting community configured information, Target cell can be determined in candidate cell.It should be noted that determine the mode of object beam Also refer to determine the mode of Target cell, will not be repeated here.But in the beam switchings in same cell, base station only need to be Beam resources information is configured on adjacent wave beam, it may not be necessary to the information such as SRB corresponding to configuration or DRB.

For example, with reference to shown in figure 11, network side base station can match somebody with somebody when following condition meets in multiple cells or wave beam Confidence ceases：1. when the measurement report of user terminal uploads meets certain condition (such as the signal quality of adjacent cell or adjacent wave beam Be better than certain thresholding, or the signal quality of adjacent cell or adjacent wave beam than the difference in quality of cell-of-origin or wave beam in certain thresholding It is interior), user terminal reports current qualified cell or wave beam, and this message can also pass through other one by user terminal The channel (for example user terminal establishes low frequency and high-frequency link simultaneously, and user terminal notifies network side by low frequency) of individual frequency range It is sent to the base station of network side；After the base station of network side receives the information, user terminal is established in corresponding cell (cell-of-origin can notify candidate cell to establish link preparation to information, and candidate cell returns to relevant information, and it is whole may to include user End switching when special preamble preamble or specific schedule resource), then will establish user terminal information it is small Area is added in candidate cell configuration information, is handed down to user terminal, and user terminal then determines Target cell in candidate cell, When then switching to Target cell again, due to being configured with Signaling Radio Bearer SRB, the data of user terminal in Target cell Radio bearer DRB or physical layer configurations information, therefore user terminal can be rapidly switched in Target cell.

In the present embodiment, for user terminal after it is determined that needing to carry out cell switching, the mode switched over may include two Kind, in the first way, user terminal sends handover request, the Target cell or wave beam to the Target cell or wave beam After handover request is received, complete to switch with the cell-of-origin or wave beam, corresponding data transmission state is believed in cell-of-origin Breath is sent to the Target cell.

Refer to shown in Fig. 9, in the application scenarios of cell switching, user terminal after selected target cell, Cell-of-origin can not be notified, and directly initiates handover request to Target cell, after Target cell receives the handover request, notice The cell-of-origin user terminal will carry out cell switching, and data state info is then sent to Target cell by cell-of-origin, so as to complete Switching.Data state info may include serial-number-state transmission SN Status Transfer message and Data Forwarding Data Forward message, after Target cell receives the SN Status Transfer message and Data forward message, user Terminal can carry out data transmission in Target cell.

And in the application scenarios of a wave beam beam switching, user terminal, can after it is determined that needing to carry out beam switchover Handover request is sent to object beam, object beam completes switching after handover request is received.It should be noted that user Terminal can not notify source wave beam after selected target wave beam, and directly initiate handover request to object beam, and object beam connects After receiving the handover request, the notice source wave beam user terminal will be switched to object beam.Unlike cell switching, source Wave beam need not send the data mode such as SN Status Transfer message and Data forward message letter to object beam Breath.

In a further mode of operation, in the application scenarios of cell switching, user terminal after selected target cell, Can also be by aiding in band channels to send measurement report to the cell-of-origin, by the cell-of-origin according to the measurement report and institute State Target cell or wave beam completes switching, and corresponding data transmission status information is sent to the Target cell by cell-of-origin.

As it was previously stated, auxiliary band channels can be a low frequency channel, it is not easy to obstruction decline occur, user terminal is When the source channel signal made in high frequency produces significantly obstruction decline, remain able to send out to cell-of-origin by the auxiliary frequency range of low frequency Send measurement report.

Specifically, can cell-of-origin the process of switching completed according to measurement report and Target cell or wave beam refer to Figure 10 institutes Show, in the application scenarios of a cell switching, cell-of-origin receives the mesh of can be known user terminal selecting after measurement report Cell is marked, cell-of-origin completes to switch with Target cell, then sends data transmission status information, data mode letter to Target cell Breath may include SN Status Transfer message and Data forward message, then pass through the described second auxiliary band channels Notice user terminal switches over.Target cell receives the SN Status Transfer message and Data forward message Afterwards, when user terminal accesses the Target cell, transmitting uplink data resource is distributed for it, user terminal switches to target Cell carries out data transmission.

And, it is necessary to explanation, source wave beam different from cell switching in the application scenarios of a wave beam beam switching The data state info such as SN Status Transfer message and Data forward message need not be sent to object beam.

Optionally, in the present embodiment, the cell or the preconfigured messages of beam selection that reception base station issues, the cell Obstruction journey corresponding to cell-of-origin or wave beam and at least one adjacent cell or wave beam belonging to including in the preconfigured messages of selection Spend information；The cell-of-origin included in the preconfigured messages of detection cell or beam selection or wave beam and adjacent cell or wave beam are respective Signal intensity, entered according to cell-of-origin or wave beam and each adjacent cell or each self-corresponding signal intensity of wave beam and degree of congestion information Row cell selects.

As previously described, because wireless channel, which is blocked, can greatly reduce signal power, therefore still have can for user terminal RLF states can be entered.For example, when user does not have in the building of wireless base station covering into an inside, due to wireless communication Number decay, still possibly into RLF states.For another example Testing index in the configuration of above-mentioned handover triggering condition and corresponding Trigger parameter set it is unreasonable when, user terminal still is possible to enter RLF states.Now, the call of user will occur Interrupt.And when user from inside do not have wireless base station cover building in remove when, then user terminal need carry out cell or The operation of wave beam gravity treatment, that is, reselect cell or wave beam access.

And for network side, i.e., it needs to be determined that target terminal, the prewired of cell selection is issued to the target terminal Message (selection or gravity treatment that can be used for cell or wave beam) is put, includes the target in the preconfigured messages of the cell selection The cell-of-origin of terminal and the respective decline report information of at least one adjacent cell, the decline report information include corresponding cell Degree of congestion information or fading type so that the target terminal according to it is described decline report information obtain degree of congestion information Or the fading type in the decline report information finds corresponding degree of congestion information, and make the target terminal root Determine that Target cell enters according to the corresponding cell-of-origin and the respective signal intensity of at least one adjacent cell and degree of congestion information Row selection or gravity treatment.

For example, in an application scenarios, as shown in Fig. 2 user terminal is entering position weight of the RLF states after Fig. 2 New access to communication networks, then need to carry out cell selection and gravity treatment.Now, the signal intensity that user terminal detects is respectively small Area 2_4 is more than cell 1_3 more than cell 1_2, but includes in the preconfigured messages of the cell that issues of base station or beam selection Cell 2_4, cell 1_2 and each self-corresponding degree of congestion information of cell 1_3, skyscraper is more in cell 2_4, the hair of statistics The probability of raw obstruction decline is higher, and cell 1_2 area under one's jurisdiction is playground landform, and the probability of the sounding obstruction decline of statistics is relatively low, Therefore, user terminal is when selecting cell access to communication networks, also can not the good cell 2_4 of selection signal intensity it is small as target Area accesses, and passes through after summation weighting consideration signal intensity and degree of congestion information, and selection signal intensity is slightly poor, but blocks The relatively low cell 1_2 of degree information is as Target cell.It should be noted that determine that the mode of object beam also refers to determine The mode of Target cell, will not be repeated here.

In another embodiment, to improve reliability, additionally provide one kind is to determine user terminal by network side The no method for needing to switch over, for example, performing this method by base station.In the method, for some user terminal, network side Can be by the way that the signal of the wireless channel between base station and the user terminal and at least one handover triggering condition be configured into progress Match somebody with somebody to determine whether user terminal needs to switch over, so as to be suitable for the situation of multi-signal decline, improve flexibility.Specifically , as shown in figure 12, the switching method may include：

Step S1202：At least one handover triggering condition configuration is obtained, the handover triggering condition configuration includes switching and touched Hair event and trigger parameter corresponding with the handover trigger event.

Step S1204：Target terminal is determined, measures the upward signal of the target terminal.

Step S1206：When the measured value of the upward signal for the target terminal that measurement obtains meets at least one Corresponding to handover trigger event in handover triggering condition configuration during trigger parameter, determine that the target terminal carries out cell or ripple The switching of beam.

Specifically, for any one user terminal in base station area under one's jurisdiction, then can be examined as target terminal by base station Survey and the signal of communication (i.e. target terminal and the upward signal of the base station) of the target terminal, the survey of the upward signal is detected in base station Amount mode includes the parameters such as filter factor, measurement parameter type, measurement period can be different from the metering system of foregoing user terminal. Compared with base station will configure to the measurement result of upward signal with least one handover triggering condition pre-configured on base station, from And show whether target terminal needs the comparative result switched.It should be noted that handover triggering condition pre-configured on base station Configuration can be provided with different handover trigger event and corresponding from the foregoing handover triggering condition configuration for being handed down to user terminal Trigger parameter, or in the present embodiment, the user terminal for being defined as target terminal can not possess autonomous switching capability Conventional art in user terminal.

Further, base station can receive the measurement report that the target terminal uploads, according to measurement report in target terminal Adjacent cell in determine candidate cell；Configuration signal radio bearer information, Data Radio Bearer information and thing on candidate cell At least one of layer configuration information is managed, and candidate cell is sent to target terminal by candidate cell configuration information.

In the present embodiment, base station can pass the data of target terminal when it is determined that target terminal carries out the switching of cell Defeated status information is sent to the adjacent cell or candidate cell of target terminal.

That is, for the user terminal that should be used as target terminal, base station can now the part of the user terminal or In all adjacent cells in configuration signal radio bearer information, Data Radio Bearer information and physical layer configurations information at least one Kind, then it is determined that need carry out cell switching when, by data transmission status information (SN Status Transfer message and The data state infos such as Data forward message) it is sent in advance on all adjacent cells or candidate cell so that user terminal No matter have selected target of which cell as switching in adjacent cell or candidate cell, the cell as target may be such that On store corresponding with user terminal configuration signal radio bearer information, Data Radio Bearer information or physical layer configurations in advance Information, and data transmission status information, user terminal only need to send handover request to the cell as target, you can fast Be switched to fastly in the cell as target, so as to avoid switch speed it is too slow caused by user terminal enter RLF shapes The situation of state, so as to improve the reliability of communication.

In another embodiment, user terminal, can also be according to network side in measurement report of the generation to reception signal Instruction generate corresponding measurement report.For example, base station can issue at least one measurement configuration, measurement configuration can be independent Configuration can also be above-mentioned handover triggering condition configuration, or be stored in above-mentioned handover triggering condition configuration.This is at least One kind measurement configuration at least may include two types：The measurement configuration and the measurement of beam signal of cell signal configure.Inhomogeneity The content such as definable different measurement period, filter factor, measurement parameter type and filtering mode in the measurement configuration of type.User Terminal can generate different types of measurement report according to different measurement configurations.For example, measurement of the user terminal in generation cell During report, then measured according to the measurement of cell signal configuration；User terminal is when generating the measurement report of wave beam, then basis The measurement configuration of beam signal measures.This measurement report for allowing for user terminal uploads is to be given birth to according to the demand of network side Into measurement report, network side can refer to different types of measurement report according to business demand.For example, carrying out Zone When, refer to the measurement report of the cell type of user terminal uploads；And when carrying out beam service, then refer to user terminal The measurement report of the beam type of upload, this allows for the need at the measurement report more adaptation network side base station of user terminal uploads Ask, so as to improve the accuracy of measurement report.

After employing above-mentioned switching method and device, base station can will be respectively suitable for cutting for polytype signal fadeout Change trigger condition configuration and be sent to user terminal, for example, the handover triggering condition suitable for common signal fadeout can both be sent The handover triggering condition configuration that configuration and also transmission are applied to signal jam decline faster is sent to user terminal, user Whether terminal relatively can need to carry out by the way that the measured value of reception signal is configured with a variety of handover triggering conditions come active decision Switching so that user terminal can be when different fading profiles occurs in reception signal, according to different handover triggering condition configurations certainly Whether main decision-making, which needs, switches over, the notice without waiting network side base station, so as to improve the flexible of handover mechanism Property.

In addition, user terminal can be applicable when rapidly obstruction decline occurs in reception signal by what base station issued in advance Discover in time in the handover triggering condition configuration of signal jam decline faster, and promptly switch to adjacent cell or ripple Beam, so as to prevent due to switch it is out of touch with cell-of-origin not in time and caused by user terminal enter Radio Link Failure RLF State, when can ensure that user is obscured by an object in communication process, remain to be rapidly switched to other cells or wave beam, will not make Dropped calls are obtained, so as to improve the reliability of communication system.

In another embodiment, it is also proposed that a kind of switching device, the device can be user terminal or set The device being placed in user terminal, as shown in figure 13, the device include the first handover configurations acquisition module 1302 and the first switching Condition determining module 1304, wherein：

First handover configurations acquisition module 1302, configured for obtaining at least one handover triggering condition by base station, institute Stating handover triggering condition configuration includes handover trigger event and trigger parameter corresponding with the handover trigger event.

First switching condition determining module 1304, for measuring reception signal, when the measurement for the reception signal that measurement obtains When value meets trigger parameter corresponding to handover trigger event at least one handover triggering condition configuration, it is determined that carrying out small Area or the switching of wave beam.

In the present embodiment, as shown in figure 13, the switching device also includes switching condition comparison module 1306, in institute State at least one handover triggering condition configuration, configured for any handover triggering condition, the reception signal is cut at this The measured value trigger parameter corresponding with the handover trigger event for measuring to obtain is changed under the handover trigger event of trigger condition configuration Matched, if matching, judges the measured value and the handover triggering condition configurations match；In the measurement of the reception signal When being worth with any set handover triggering condition configurations match, judge described in the measured value satisfaction for the reception signal that measurement obtains extremely Trigger parameter corresponding to handover trigger event in a kind of few handover triggering condition configuration.

In the present embodiment, measurement side corresponding with the handover trigger event is also included in handover triggering condition configuration Formula, the metering system comprise at least at least one of measurement period, filter factor, measurement parameter type and filtering mode；

First switching condition determining module 1304 is used to be cut according to what at least one handover triggering condition configuration included Change metering system corresponding to trigger event to measure the reception signal, obtain the measured value of the reception signal.

In the present embodiment, the handover trigger event includes the first handover trigger event；

The affiliated cell-of-origin or the intensity of the source channel signal of wave beam that first handover trigger event detects for determination exist The intensity level declined in default first duration parameters is more than or equal to the first thresholding；Triggered corresponding to first handover trigger event Parameter includes first duration parameters and first thresholding.

In the present embodiment, the first handover configurations acquisition module 1302 is additionally operable to receive the small with affiliated source of base station transmission At least one decline report information corresponding to area or wave beam, the decline report information include corresponding with the cell-of-origin or wave beam Fading type；Obtain handover triggering condition configuration corresponding to the fading type that the decline report information includes.

In one embodiment, as shown in figure 13, the device also includes the first wave beam handover module 1308, for it is determined that When carrying out the switching of wave beam, object beam is determined, sends handover request to the object beam, the object beam is receiving Complete to switch after handover request.

In one embodiment, as shown in figure 13, the device also includes the second beam switchover module 1310, for it is determined that When carrying out the switching of wave beam, object beam is determined, by aiding in band channels to send measurement report to affiliated source wave beam, by institute Source wave beam is stated to complete to switch according to the measurement report and the object beam.

In one embodiment, as shown in figure 13, the device also includes candidate cell determining module 1312, for receiving base Stand send candidate cell configuration information, candidate cell is determined according to the candidate cell configuration information, the candidate cell is Be provided with the adjacent small of at least one of Signaling Radio Bearer information, Data Radio Bearer information and physical layer configurations information in advance Area；The device also includes cell handover module 1314, for it is determined that carry out cell switching when, in the candidate cell really Set the goal cell, switches to the Target cell.

In one embodiment, as shown in figure 13, the device also includes cell selection or gravity treatment module 1316, for receiving The cell or the preconfigured messages of beam selection that base station is sent, include affiliated source in the preconfigured messages of cell selection Degree of congestion information corresponding to cell or wave beam and at least one adjacent cell or wave beam；Detect the pre- of the cell or beam selection The adjacent cell or the respective signal intensity of wave beam that include in configuration message, according to the cell-of-origin or wave beam and each adjacent cell or Each self-corresponding signal intensity of wave beam and degree of congestion information carry out cell selection or gravity treatment.

In addition, to improve reliability, additionally provide one kind and determine whether user terminal needs to be cut by network side The switching device changed, in the method, for some user terminal, network side can be by by between base station and the user terminal The signal of wireless channel is matched to determine whether user terminal needs to be cut with the configuration of at least one handover triggering condition Change, so as to be suitable for the situation of multi-signal decline, improve flexibility.Specifically, as shown in figure 14, the switching device is based on net The base station of network side, the device includes the second handover configurations acquisition module 1402, upward signal measurement module 1404 and second switches Condition determining module 1406, wherein：

Second handover configurations acquisition module 1402, for obtaining at least one handover triggering condition configuration, the switching is touched The configuration of clockwork spring part includes handover trigger event and trigger parameter corresponding with the handover trigger event.

Upward signal measurement module 1404, for determining target terminal, measure the upward signal of the target terminal.

Second switching condition determining module 1406, for when the measurement for the upward signal for measuring the obtained target terminal When value meets trigger parameter corresponding to handover trigger event at least one handover triggering condition configuration, the mesh is determined Mark the switching that terminal carries out cell or wave beam.

In the present embodiment, as shown in figure 14, the device also includes candidate cell configuration module 1408, described for receiving The measurement report that target terminal uploads, candidate cell is determined according to the measurement report in the adjacent cell of the target terminal； On the candidate cell in configuration signal radio bearer information, Data Radio Bearer information and physical layer configurations information at least One kind, and the candidate cell is sent to the target terminal by candidate cell configuration information.

In the present embodiment, as shown in figure 14, the device also includes the pre- sending module 1410 of data transmission state, for When determining that the target terminal carries out the switching of cell, the data transmission status information of the target terminal is sent to the mesh Mark the adjacent cell or candidate cell of terminal.

The schematic diagram of a kind of possible design structure of the user terminal of the above-mentioned switching method of execution as illustrated in FIG. 15. The user terminal includes transmitter 1501, receiver 1502, processor 1503, memory 1504 and modem processor 1505。

Transmitter 1501 adjusts (for example, analog-converted, filtering, the amplification and up-conversion etc.) output and samples and generate up Link signal, the uplink signal are transmitted to the base station described in above-described embodiment via antenna.On the uplink, antenna Receive the down link signal of Base Transmitter in above-described embodiment.

Receiver 1502 adjusts the signal that (for example, filtering, amplification, down coversion and digitlization etc.) receives from antenna and carried For input sample.

In modem processor 1505, encoder 1506 receives the business datum to send on uplink and letter Message is made, and is handled business datum and signaling message (for example, format, encode and interweave).Modulator 1507 enters one Step handles the business datum after (for example, symbol mapping and modulation) encodes and signaling message and provides output and samples.Demodulator 1509 processing (for example, demodulation) input sample simultaneously provides sign estimation.

Decoder 1508 handles (for example, deinterleaving and decoding) sign estimation and provides the solution for being sent to user terminal The data and signaling message of code.Encoder 1506, modulator 1507, demodulator 1509 and decoder 1508 can be by the tune that synthesize Demodulation processor 1506 processed is realized.Wireless access technology that these units use according to wireless access network (for example, LTE and its The access technology of his evolution system) handled.

Action of the processor 1503 to user terminal is controlled management, for performing in embodiment illustrated in fig. 4 by user The operation that terminal is carried out.Such as power configuration information and carry out CSI measurements.Memory 1504, which is used to store, is used for user terminal 1500 program code and data.

Designed it is understood that Figure 15 illustrate only simplifying for user terminal.In actual applications, user terminal can Comprising any number of transmitter, receiver, processor, memory and modem processor etc., will not be described here.

The schematic diagram of a kind of possible design structure of the base station of the above-mentioned switching method of execution as illustrated in FIG. 16.The base Station includes：The action that processor 1601 is used for base station is controlled management, performs various functions to support base station to provide logical Telecommunications services.For example, operation of the processor 1601 for supporting switching device execution in base station execution embodiment illustrated in fig. 14, and/ Or other operations that switching device performs in embodiment as shown in Figure 14 for techniques described herein.

Memory 1602, which is used to store, is used for the program generation that the base station carries out switching method provided in an embodiment of the present invention Code and data, the program code include computer-managed instruction.The program code stored in memory 1602 can be by processor 1601 perform.

Emitter/receiver 1604 is used to support the terminal equipment in communication such as base station and user terminal.

Communication module 1603 is used for the communication for supporting the base station and other network entities, for example, with equipment of the core network or other The communication of the network equipment.

Wherein, the function of emitter/receiver 1604 and communication module 1603 can be realized by a transceiver, the receipts Hair device supports the communication between the base station and other kinds communication equipment.

Designed it is understood that Figure 16 illustrate only simplifying for base station.In actual applications, base station can include and appoint The transmitter for quantity of anticipating, receiver, processor, controller, memory, communication module etc., will not be described here.

Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.

Claims (24)

1. a kind of switching method, it is characterised in that methods described includes：

At least one handover triggering condition is obtained by base station to configure, the handover triggering condition configuration includes handover trigger event And trigger parameter corresponding with the handover trigger event；

Reception signal is measured, when the measured value for the reception signal that measurement obtains meets at least one handover triggering condition configuration In handover trigger event corresponding to trigger parameter when, it is determined that carrying out the switching of cell or wave beam.

2. switching method according to claim 1, it is characterised in that methods described also includes：

In at least one handover triggering condition configuration, configured for any handover triggering condition, described receive is believed The measured value that measures to obtain is corresponding with the handover trigger event number under the handover trigger event of handover triggering condition configuration Trigger parameter is matched, if matching, judges the measured value and the handover triggering condition configurations match；

When the measured value of the reception signal is with any set handover triggering condition configurations match, what judgement measurement obtained connects The measured value collected mail number meets trigger parameter corresponding to handover trigger event at least one handover triggering condition configuration.

3. switching method according to claim 1, it is characterised in that also include and institute in the handover triggering condition configuration Metering system corresponding to handover trigger event is stated, the metering system comprises at least measurement period, filter factor, measurement parameter class At least one of type and filtering mode；

The measurement reception signal includes：

Connect according to metering system corresponding to the handover trigger event that at least one handover triggering condition configuration includes to described The collection of letters number measures, and obtains the measured value of the reception signal.

4. switching method according to claim 1, it is characterised in that the handover trigger event includes the first handover trigger Event；

The affiliated cell-of-origin or the intensity of the source channel signal of wave beam that first handover trigger event detects for determination exist The intensity level declined in default first duration parameters is more than or equal to the first thresholding；

Trigger parameter corresponding to first handover trigger event includes first duration parameters and first thresholding.

5. switching method according to claim 1, it is characterised in that described that at least one handover trigger is obtained by base station Condition configuration includes：

Receive at least one decline report information corresponding with affiliated cell-of-origin or wave beam that base station is sent, the decline report Information includes fading type corresponding with the cell-of-origin or wave beam；

Obtain handover triggering condition configuration corresponding to the fading type that the decline report information includes.

6. switching method according to claim 1, it is characterised in that after the switching for determining progress cell or wave beam Also include：

When it is determined that carrying out the switching of wave beam, object beam is determined, handover request, the target ripple are sent to the object beam Beam completes switching after handover request is received.

7. switching method according to claim 1, it is characterised in that after the switching for determining progress cell or wave beam Also include：

When it is determined that carrying out the switching of wave beam, object beam is determined, is surveyed by aiding in band channels to be sent to affiliated source wave beam Amount report, complete to switch according to the measurement report and the object beam by the source wave beam.

8. switching method according to claim 1, it is characterised in that methods described also includes：

The candidate cell configuration information that base station is sent is received, candidate cell is determined according to the candidate cell configuration information, it is described Candidate cell is to be provided with advance in Signaling Radio Bearer information, Data Radio Bearer information and physical layer configurations information at least A kind of adjacent cell；

It is described to determine that carry out cell or the switching of wave beam also includes afterwards：

When it is determined that carrying out the switching of cell, Target cell is determined in the candidate cell, switches to the Target cell.

9. switching method according to claim 1, it is characterised in that methods described also includes：

The cell of base station transmission or the preconfigured messages of beam selection are received, are included in the preconfigured messages of the cell selection Degree of congestion information corresponding to affiliated cell-of-origin or wave beam and at least one adjacent cell or wave beam；

The adjacent cell included in the preconfigured messages of the cell or beam selection or the respective signal intensity of wave beam are detected, according to The cell-of-origin or wave beam and each adjacent cell or each self-corresponding signal intensity of wave beam and degree of congestion information carry out cell choosing Select or gravity treatment.

10. a kind of switching device, it is characterised in that described device includes：

First handover configurations acquisition module, configured for obtaining at least one handover triggering condition by base station, the switching is touched The configuration of clockwork spring part includes handover trigger event and trigger parameter corresponding with the handover trigger event；

First switching condition determining module, for measuring reception signal, when the measured value for the reception signal that measurement obtains meets institute When stating trigger parameter corresponding to the handover trigger event at least one handover triggering condition configuration, it is determined that carrying out cell or wave beam Switching.

11. switching device according to claim 10, it is characterised in that described device also compares mould including switching condition Block, at least one handover triggering condition configuration, being configured for any handover triggering condition, by the reception The measured value that signal measures to obtain under the handover trigger event that the handover triggering condition configures is corresponding with the handover trigger event Trigger parameter matched, if matching, judge the measured value and the handover triggering condition configurations match；In the reception When the measured value of signal is with any set handover triggering condition configurations match, the measured value for the reception signal that measurement obtains is judged Meet trigger parameter corresponding to the handover trigger event at least one handover triggering condition configuration.

12. switching device according to claim 10, it is characterised in that also include in handover triggering condition configuration with Metering system corresponding to the handover trigger event, the metering system comprise at least measurement period, filter factor, measurement parameter At least one of type and filtering mode；

The first switching condition determining module is used to be touched according to the switching that at least one handover triggering condition configuration includes Metering system measures to the reception signal corresponding to hair event, obtains the measured value of the reception signal.

13. switching device according to claim 10, it is characterised in that the handover trigger event includes the first switching and touched Hair event；

The affiliated cell-of-origin or the intensity of the source channel signal of wave beam that first handover trigger event detects for determination exist The intensity level declined in default first duration parameters is more than or equal to the first thresholding；

Trigger parameter corresponding to first handover trigger event includes first duration parameters and first thresholding.

14. switching device according to claim 10, it is characterised in that the first handover configurations acquisition module is additionally operable to Receive at least one decline report information corresponding with affiliated cell-of-origin or wave beam that base station is sent, the decline report information Including fading type corresponding with the cell-of-origin or wave beam；Obtain corresponding to the fading type that the decline report information includes Handover triggering condition configures.

15. switching device according to claim 10, it is characterised in that described device also includes the first beam switchover mould Block, for when it is determined that carrying out the switching of wave beam, determining object beam, handover request, the mesh are sent to the object beam Mark wave beam completes switching after handover request is received.

16. switching device according to claim 10, it is characterised in that described device also includes the second beam switchover mould Block, for when it is determined that carrying out the switching of wave beam, determining object beam, by aiding in band channels to be sent to affiliated source wave beam Measurement report, complete to switch according to the measurement report and the object beam by the source wave beam.

17. switching device according to claim 10, it is characterised in that described device also determines mould including candidate cell Block, for receiving the candidate cell configuration information of base station transmission, candidate cell is determined according to the candidate cell configuration information, institute It is to be provided with advance in Signaling Radio Bearer information, Data Radio Bearer information and physical layer configurations information extremely to state candidate cell A kind of few adjacent cell；

Described device also includes cell handover module, for it is determined that carry out cell switching when, in the candidate cell really Set the goal cell, switches to the Target cell.

18. switching device according to claim 10, it is characterised in that described device also includes cell selection module, uses Comprising in the cell or the preconfigured messages of beam selection that receive base station transmission, the preconfigured messages of the cell selection Degree of congestion information corresponding to the cell-of-origin of category or wave beam and at least one adjacent cell or wave beam；Detect the cell or wave beam choosing The respective signal intensity of adjacent cell or wave beam included in the preconfigured messages selected, according to the cell-of-origin or wave beam and each neighbour Cell or each self-corresponding signal intensity of wave beam and degree of congestion information carry out cell selection or gravity treatment.

A kind of 19. switching method, it is characterised in that including：

Obtain the configuration of at least one handover triggering condition, the handover triggering condition configuration include handover trigger event and with institute State trigger parameter corresponding to handover trigger event；

Target terminal is determined, measures the upward signal of the target terminal；

When the measured value of the upward signal for the target terminal that measurement obtains meets that at least one handover triggering condition is matched somebody with somebody Corresponding to the handover trigger event put during trigger parameter, determine that the target terminal carries out the switching of cell or wave beam.

20. switching method according to claim 19, it is characterised in that methods described also includes：

Receive the measurement report that the target terminal uploads, according to the measurement report in the adjacent cell of the target terminal really Determine candidate cell；

On the candidate cell in configuration signal radio bearer information, Data Radio Bearer information and physical layer configurations information At least one, and the candidate cell is sent to the target terminal by candidate cell configuration information.

21. switching method according to claim 20, it is characterised in that it is described determine the target terminal carry out cell or Also include after the switching of wave beam：

When it is determined that the target terminal carries out the switching of cell, the data transmission status information of the target terminal is sent to The adjacent cell or candidate cell of the target terminal.

A kind of 22. switching device, it is characterised in that including：

Second handover configurations acquisition module, for obtaining at least one handover triggering condition configuration, the handover triggering condition is matched somebody with somebody Put including handover trigger event and trigger parameter corresponding with the handover trigger event；

Upward signal measurement module, for determining target terminal, measure the upward signal of the target terminal；

Second switching condition determining module, the measured value for the upward signal of the target terminal obtained when measurement meet institute When stating trigger parameter corresponding to the handover trigger event at least one handover triggering condition configuration, determine that the target terminal enters The switching of row cell or wave beam.

23. switching device according to claim 22, it is characterised in that described device also includes candidate cell configuration mould Block, the measurement report uploaded for receiving the target terminal, according to the measurement report the target terminal adjacent cell Middle determination candidate cell；Configuration signal radio bearer information, Data Radio Bearer information and physical layer on the candidate cell At least one of configuration information, and the candidate cell is sent to the target terminal by candidate cell configuration information.

24. switching method according to claim 23, it is characterised in that described device is also sent out in advance including data transmission state Module is sent, for when it is determined that the target terminal carries out the switching of cell, the data transmission state of the target terminal to be believed Breath is sent to the adjacent cell or candidate cell of the target terminal.