CN102859905B

CN102859905B - The apparatus and method of switching support information are provided in mobile communication system

Info

Publication number: CN102859905B
Application number: CN201180021422.1A
Authority: CN
Inventors: 闵粲浩; 郑丁寿; 金东煜; 郑景仁; 权种炯; 林彩权; 全泳炫
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2010-04-27
Filing date: 2011-04-27
Publication date: 2016-12-14
Anticipated expiration: 2031-04-27

Abstract

Provide in a kind of mobile communication system for providing the apparatus and method of switching support information.A kind of mobile station in mobile communication system (MS) determines that adjacent base station (BS) method that BS provides measurement report to trigger the information needed for performing to MS afterwards includes, described MS be activation pattern MS in the case of, triggered time (TTT) is provided independently to the MS of this activation pattern according to specific neighbor bss, and described MS be idle pulley MS in the case of, be provided independently to this idle pulley MS according to specific neighbor bss and select the time period (Treselection) again.

Description

The apparatus and method of switching support information are provided in mobile communication system

Technical field

The present invention relates to device and the side in a kind of triggered time (TTT) for providing the switching for subscriber equipment (UE) Method.More particularly it relates to an when the triggering of the switching that offer is used for subscriber equipment in mobile communication system Between and the apparatus and method of period (Treselection) selected again for the community of UE.

Background technology

Recently, demand for high-speed data service is continuously increased in mobile communication system.Mainly in terms of covering Territory, specific cell in provide data, services, so increasingly paying close attention to Microcell (or picocell, hot-zone (hot zone), in the least Picocell etc.).

The feature of Microcell is given as follows.Microcell has the covering less than macrocell, and can be overlapping with macrocell. Equally, Microcell can be operated in the frequency identical or different with macrocell, and uses compared with grand enode b (eNB) Low transmitting power.

But, in the case of UE performs switching from macrocell to Microcell, existing problems: use be used as macrocell it Between switching the existing value that arranges can cause high handover failure rate.

Therefore, there are the needs for the apparatus and method for providing switching support information in mobile communication system.

Summary of the invention

Each aspect of the present invention is to solve at least the above and/or shortcoming, and provides advantage at least below.Cause This, it is an aspect of the present invention to provide a kind of device for providing switching (HO) to support information in mobile communication system and side Method.

Another aspect of the present invention is to provide a kind of for providing cutting for movement station (MS) in mobile communication system The apparatus and method in the triggered time (TTT) changed.

Another aspect of the present invention is to provide and a kind of selects for the community of MS for providing in mobile communication system again The apparatus and method of time period (Treselection).

Another aspect of the present invention is to provide a kind of based on third generation partner program Long Term Evolution (3GPP LTE) System in order to support the stable handover success when switching between macrocell and Microcell performs, in base station (BS) apparatus and method of TTT relevant information are consulted between.

Another aspect of the present invention there is provided a kind of in order to hold between the macrocell in 3GPP LTE system and Microcell The switching of line stabilization, service BS forwards the apparatus and method of TTT value independently according to specific neighbor bss to the MS of the pattern of activation.

Another aspect of the present invention there is provided a kind of in order to hold between the macrocell in 3GPP LTE system and Microcell The community of line stabilization is selected again, and service BS forwards Treselection value according to specific neighbor bss independently to the MS of idle pulley Apparatus and method.

By provide a kind of for provide in mobile communication system switching support information apparatus and method realize with Upper aspect.

According to an aspect of the present invention, it is provided that one measures after neighbor bss BS to MS at MS in mobile communication system The method that measurement report triggers the information needed for performing is provided.The method includes, is the situation of the MS of activation pattern at described MS Under, TTT it is provided independently according to specific neighbor bss to the MS of this activation pattern, and is the MS of idle pulley at described MS In the case of, it is provided independently to the MS of this idle pulley according to specific neighbor cell and selects time period Treselection again.

According to an aspect of the present invention, it is provided that a kind of BS in mobile communication system sends the switching letter of MS to another BS The method of breath.The method includes by sending the mobile change comprising mobile change information (mobility change) to neighbor bss Change message and perform negotiation, and receive this is moved the response message of change message.

In accordance with a further aspect of the present invention, it is provided that a kind of mobile letter obtaining neighbor bss in the MS of mobile communication system The method of breath (mobility information).The method includes: in the case of described MS is in activation pattern, by control The mobile message of message sink BS processed, determines whether to meet measurement report bar based on the mobile message comprised in this control message Part, in the case of meeting measurement report condition, sends measurement report message to described BS, is in idle pulley at described MS In the case of, received the mobile message of BS by system information block (SIB), determine whether based on the mobile message comprised in this SIB Meet community and select condition again, and meeting in the case of community selects condition again, perform community and select again.

According to a further aspect in the invention, it is provided that a kind of information that neighbor bss is provided to MS in mobile communication system The device of BS.This device includes controller and transmitter.Described MS be activation pattern MS in the case of, controller is according to spy Fixed neighbor bss has independently produced TTT.Described MS be idle pulley MS in the case of, controller is according to specific neighbor bss Have independently produced Treselection.Transmitter sends, to the MS of the pattern of activation, the TTT generated, and sends out to the MS of idle pulley Send generated Treselection.

According to a further aspect in the invention, it is provided that a kind of switching letter sending MS in mobile communication system to another BS The BS device of breath.This device includes controller, transmitters and receivers.Controller generates the mobile change comprising mobile change information Change message.Transmitter sends this to neighbor bss and moves change message.This is moved the response message of change message by receptor reception.

According to a further aspect in the invention, it is provided that a kind of mobile message obtaining neighbor bss in mobile communication system The device of MS.This device includes controller and receptor.In the case of described MS is in activation pattern, controller is by controlling Message obtains the mobile message of described BS, determines whether to meet measurement report bar based on the mobile message comprised in this control message Part, and in the case of meeting measurement report condition, send measurement report message to described BS.It is in idle mould at described MS In the case of formula, controller obtains the mobile message of described BS by SIB, determines based on the mobile message comprised in this SIB and is No meet community and select condition again, and meeting in the case of community selects condition again, perform community and select again.Receptor receives described Control message and SIB.

From below in conjunction with accompanying drawing, the detailed description that discloses one exemplary embodiment of the present invention, its other party of the present invention Face, advantage and marked feature will readily appear to those skilled in the art.

Accompanying drawing explanation

From below in conjunction with the description of accompanying drawing, the above and other aspect of the one exemplary embodiment of the present invention, feature and excellent Point will become clearer from, wherein:

Fig. 1 is the figure of the example illustrating heterogeneous network according to an exemplary embodiment of the invention；

Fig. 2 is the message stream of the process illustrating transmission measurement report message according to an exemplary embodiment of the invention；

Fig. 3 is to illustrate the descending chain when the switching from macrocell to Microcell according to an exemplary embodiment of the invention The figure of the change of road (DL) received signal strength；

Fig. 4 is to illustrate to rely on when UE performs the switching from macrocell to macrocell according to an exemplary embodiment of the invention Figure in switching (HO) process of the position of subscriber equipment (UE)；

Fig. 5 is to illustrate to rely on when UE performs the switching from macrocell to Microcell according to an exemplary embodiment of the invention Figure in the handoff procedure of the position of UE；

Fig. 6 is to illustrate to rely on when UE performs the switching from macrocell to Microcell according to an exemplary embodiment of the invention Figure in the handoff procedure of the position of UE；

Fig. 7 is the node B(eNB illustrating evolution according to an exemplary embodiment of the invention) the ladder of mobile change procedure Shape figure；

Fig. 8 is the flow chart of the mobile change procedure illustrating eNB according to an exemplary embodiment of the invention；

Fig. 9 is to illustrate to turn independently to UE according to adjacent eNB in service eNB according to an exemplary embodiment of the invention Send out the message flow diagram of the process of TTT and Treselection value；

Figure 10 is to illustrate to turn independently to UE according to adjacent eNB in service eNB according to an exemplary embodiment of the invention Send out the flow chart of the process of TTT and Treselection value；

Figure 11 is the block diagram of the structure illustrating eNB or UE according to an exemplary embodiment of the invention；

Figure 12 be illustrate according to an exemplary embodiment of the invention when load factor be 50% and up-link (UL) use mutually Property test (IoT) HO mortality result when being 5dB figure；And

Figure 13 be illustrate according to an exemplary embodiment of the invention when load factor be 100% and up-link (UL) mutual The figure of HO mortality result when being 7dB by property test (IoT).

Running through accompanying drawing, similar reference number will be understood to refer to similar part, assembly and structure.

Detailed description of the invention

There is provided understand, with help, the basis being defined by the appended claims and the equivalents thereof below with reference to describing of accompanying drawing comprehensively The exemplary embodiment of invention.It includes the various specific detail helping to understand, but these only should be counted as exemplary 's.Therefore, it will be appreciated by those skilled in the art that in the case of without departing from scope and spirit of the present invention, can be right Embodiment described herein carries out variations and modifications.It addition, for clarity and conciseness, it is convenient to omit to known function Description with structure.

The term and the vocabulary that use in following described and claimed are not limited to literal meaning, but are only used for by inventor Make it possible to clear and as one man understand the present invention.Therefore, it should be apparent to a person skilled in the art that following to example of the present invention Property embodiment description be intended for for explanation rather than for limit be defined by the appended claims and the equivalents thereof this Bright.

Should be appreciated that unless otherwise expressly stated, otherwise " " and " being somebody's turn to do " of singulative includes plural.Therefore, Such as, when mentioning " parts surface ", referring to of one or more this surface is also included.

Term " substantially " means that listed feature, parameter or value need not accurately realize, but can be with not There is deviation or difference in the amount affecting the effect that this feature is intended to provide, such as, include that tolerance, measurement error, certainty of measurement limit With other factors known to those skilled in the art.

The one exemplary embodiment of the present invention provides a kind of for providing switching (HO) to support letter in mobile communication system The apparatus and method of breath.

Third generation partner program Radio Access Network working group 1(3GPP RAN WG1) from the meeting in October, 2009 Start to consider heterogeneous network as senior Long Term Evolution (LTE) research project.Heterogeneous network (HetNet) represents following form Cell deployment: wherein in the region of grand enode b (eNB), use low transmission output grand eNB overlap each other.

That is, in HetNet, various sizes of community is mixed with or overlapping each other.Here, all eNB use identical wireless Transmission technology.

Fig. 1 is the figure of the example illustrating heterogeneous network according to an exemplary embodiment of the invention.

With reference to Fig. 1, in the region managed by the grand eNB 100 of this heterogeneous network, there is picocell 130 and 140, with And Femto cell 150,160 and 170, and there is the Microcell with small-scale wireless network 110 and 120.

In an exemplary embodiment of the invention, it is considered to based on third generation partner program Long Term Evolution (3GPP LTE) System be described.

The one exemplary embodiment of the present invention relates to a kind of under disposing at heterogeneous network, when subscriber equipment (UE) is grand little The method performing between district and Microcell effectively to support this switching during switching.

More specifically, the one exemplary embodiment of the present invention describe a kind of in system based on 3GPP LTE The mode of triggered time (TTT) relevant information is consulted between eNB.

Equally, the one exemplary embodiment of the present invention relate to a kind of for the UE when idle pulley in macrocell and Microcell it Between perform the community method that the UE of idle pulley supports community to select triggering more effectively when selecting again.

The one exemplary embodiment of the present invention describes a kind of eNB that services in system based on 3GPP LTE according to adjacent ENB forwards TTT independently and selects the mode of time period (Treselection) value again to UE.

The UE of activation pattern compares after the Reference Signal Received Power (RSRP) of target eNB mutually at measurement service eNB Relatively two received signal strengths.Then, measure trigger condition if met, then the UE activating pattern sends measurement to service eNB Report message.

In LTE system, there is several measurement trigger condition, but touch in they central most widely used measurements Clockwork spring part (event A3) is given in following formula 1.

Entry condition: Mn+Ofn+Ocn-Hys > Ms+Ofs+Ocs+Off

Leave condition: Mn+Ofn+Ocn+Hys < Ms+Ofs+Ocs+Off.... (1)

Wherein,

The RSRP(signal of Ms: Serving cell is to interference+noise ratio (SINR)) measured value (decibel (dB))；

The RSRP(SINR of Mn: neighbor cell) measured value (dB)；

Ofs: consider the skew (dB) of the carrier frequency of Serving cell；

Ofn: consider the skew (dB) of the carrier frequency of neighbor cell；

Ocs: the skew (dB) that the signal level for Serving cell when switching performs controls；

Ocn: the skew (dB) that the signal level for neighbor cell when switching performs controls；And

Off: the skew (dB) of the feature of reflection event A3.

If being unsatisfactory for leaving condition during the TTT time after UE meets entry condition, then there is event A3.This In, TTT value represents to meet measures trigger condition to trigger the time of measurement event.LTE system can be come according to the speed of UE Select and apply one of 16 TTT values.

As " Ocn " value of the deviant added to or deduct from the adjacent cell signal level when switching performs, can It is arranged differently than with the specific community of each two.As adding to or deducting from the serving cell signal level when switching performs " Ocs " value of deviant, be present in the parameter of each specific cell.

If receiving measurement report from UE, then whether service eNB determines this UE with reference to RRM (RRM) information Switching.

Fig. 2 is the message stream of the process illustrating transmission measurement report message according to an exemplary embodiment of the invention.

With reference to Fig. 2, in LTE system, there is several measurement report trigger condition.In the middle of them, most widely used Measurement report trigger condition be above-mentioned event A3.

In step A, mobile management entity (MME) 240 or gateway 250 have range constraint information.

In step B, source eNB 220 sends to UE 210 to measure and controls message to provide measurement report triggering to hold to UE 210 If the dry values needed for row.

One of value provided is TTT value.Measure control message and represent that RRC connection is reconfigured at message, including in LTE system MeasConfig(measure configuration) information unit (IE).

If being unsatisfactory for leaving condition during the TTT time after the entry condition meeting event A3, then there is event A3.Here, the expression of TTT value must be fulfilled for measurement report trigger condition (i.e. event A3) in case trigger measurement report event time Between.It is described in greater detail below this TTT value.

First, if meeting entry condition, then UE 210 operates TTT associated timer.Afterwards, if this UE 210 exists Continue to meet entry condition during the TTT time, then send measurement report in this UE 210 of step C disappear to service or source eNB 220 Breath.

If being unsatisfactory for entry condition within the TTT time, then TTT associated timer is reset to a TTT value.If it is full Foot leaves condition, then release TTT associated timer.

If source eNB 220 receives measurement report message from UE 210, then source eNB 220 is in step D reference RRM information Determine whether that UE 210 goes to the switching of target eNB 230.

Hereafter, the UE of idle pulley performs community and selects the process prescription of triggering as follows again.

In the case of UE is operated in idle pulley, the UE of this idle pulley performs measurement for Zai Xuan community.Typically Ground, this idle pulley UE determines execution or does not perform community and select.LTE system given below is selected again triggering perform for community Measurement rules.

If " SservingCell " is less than " Sintrasearch " or forwards without by " Sintrasearch " To Serving cell, then measure in the UE of idle pulley performs frequency.If " Sintrasearch " is forwarded to Serving cell also And " SservingCell " is more than " Sintrasearch ", then it is no longer required for measuring in UE performs frequency.

Here, " SservingCell " represents the received signal level value (unit is dB) of Serving cell, and " Sintrasearch " represents the threshold value (unit is dB) measured in frequency.The Treselection value of the UE of idle pulley Act the effect of the TTT value of the UE being similar to activation pattern.

It is described in more detail below this Treselection value.First, if meeting community to select trigger condition, then UE behaviour again Make Treselection associated timer.

Afterwards, if continuing to meet community during the Treselection time to select trigger condition again, then UE performs community again Select process.If being unsatisfactory for community within the Treselection time to select trigger condition again, then by Treselection correlometer Time think highly of and be set to a Treselection value.

Fig. 3 is to illustrate the descending chain when the switching from macrocell to Microcell according to an exemplary embodiment of the invention The figure of the change of road (DL) received signal strength.

With reference to Fig. 3, macrocell 310 and Microcell 320 work in the environment of Microcell 320 overlaps within macrocell 310 Make in the case of same frequency, when UE 300 performs from macrocell 310 to the switching of Microcell 320, border, Microcell 320 The neighbouring interference from micro-eNB of Microcell 320 increases sharply, and channel circumstance deteriorates suddenly.

Equally, UE 300 produces sizable up-link (UL) and interferes with micro-eNB of Microcell 320.That is because micro- The path loss between path loss and grand eNB and UE 300 of macrocell 310 between micro-eNB and UE 300 of community 320 Compare change rapidly.So, UE 300 experienced Radio Link Failure (RLF) before going to the switching of Microcell 320.

More specifically, in the case of the UE 300 of high-speed mobile performs from macrocell 310 to the switching of Microcell 320, If the relatively long TTT parameter value former state that the switching that will be applied onto between macrocell 310 performs is applied to from macrocell 310 To the switching of Microcell 320, then it is delayed by from macrocell 310 to the switching of Microcell 320, and the probability that RLF occurs is unexpected Increase.

For this solution it is required that application is suitable between macrocell 310 and Microcell 320 district of the switching performed Other parameter (that is, handover trigger threshold value and TTT).

In order to support the stable switching between macrocell 310 and Microcell 320, it should all meet following two.

First, service eNB should be able to apply handover trigger threshold value and TTT value independently according to adjacent target eNB, and Forward these parameter values to UE.That is, service eNB should be able to answer according to the physical cell identifier (PCI) of switching target eNB By handover trigger threshold value and the TTT value of difference, and forward these parameter values to UE.

This means to service the grand eNB or micro-eNB of Microcell 320 that eNB can be macrocell 310 according to target eNB Differently application handover trigger threshold value and TTT value, and forward these parameter values to UE 300.

Second, service eNB will be appreciated that it whether must apply which handover trigger threshold value according to adjacent target eNB and TTT value.This can meet first requirement.The working standard of association area not yet proposes to consult the mode of TTT value between eNB.

In Fig. 4,5 and 6, represent these problems, be described as follows.Here, what handover trigger threshold value referred in event A3 is inclined Shifting value.

Fig. 4 is to illustrate to rely on when UE performs the switching from macrocell to macrocell according to an exemplary embodiment of the invention Figure in the HO process of the position of UE.

With reference to Fig. 4, perform from macrocell 1(P1 at UE) to macrocell 2(P2) switching in the case of, in step 1, when grand HO threshold value between community 1 and 2 is more than event A3 occurs during HO_threshold.In step 2, when keeping event A3 more than TTT During value, in step 3, UE sends measurement report message to macrocell 1.In response to this, macrocell 1 determines UE switching or does not switches, And send HO_command message in step 4 to this UE.

Fig. 5 is to illustrate to rely on when UE performs the switching from macrocell to Microcell according to an exemplary embodiment of the invention Figure in the HO process of the position of UE.

With reference to Fig. 5, step 1-3 is the same with in Fig. 4.HO process in step 1-4 be used as from macrocell to grand little In the case of the parameter that the switching in district is applied, owing to the unexpected interference in step 4 occurs HO failure.

Fig. 6 is to illustrate that another one exemplary embodiment according to the present invention is when UE performs the switching from macrocell to Microcell Depend on the figure of the HO process of the position of UE.

With reference to Fig. 6, the HO process in step 1 to 4 is applied from macrocell 1(P1) to Microcell 2(P2) handover optimization Parameter.Such as finding in figure 6, before unexpected interference receives, it is quickly carried out UE to Microcell 2(P2 in step 1 and 2) Switching, it is achieved that step 3 and 4 HO success.

As it was previously stated, in order to support switching stable between macrocell and Microcell, service eNB should be able to be according to adjacent ENB and apply handover trigger threshold value and TTT value independently, and forward these parameter values to UE.

That is, service eNB should be able to use handover trigger threshold value and the TTT value of difference according to the PCI of HO target eNB, And forward these parameter values to UE.So, if UE depends on HO target eNB and is grand eNB or micro-eNB and differently applies and cut Change activation threshold value and TTT value, and send measurement report message to service eNB, then service eNB is so that HO is successful.

In MeasObjectEUTRA IE, handover trigger threshold value is represented as " cellIndividualoffset " value. MeasObjectEUTRA IE includes the information required when the UE of the pattern of activation determines adjacent community.

But, in current LTE standard, service eNB can not forward TTT value according to adjacent eNB to UE.With TTT value class Seemingly, in current LTE standard, even if service eNB can not forward Treselection independently according to adjacent eNB to UE Value.

As it has been described above, the one exemplary embodiment of the present invention is provided and a kind of is connect by X2 in system based on 3GPP LTE Mouth consults the apparatus and method of TTT relevant information between eNB.

According to LTE standard, " mobile setting up procedure " is defined as one of basic process.This process is such process: when When expecting to change mobile relevant parameter, eNB consults to be changed this by X2 interface and adjacent eNB and moves relevant parameter.

Via this process, working standard can perform for eNB between load balance, the purpose such as HO optimization and consult to cut Change the function of the changing value of activation threshold value.

The one exemplary embodiment of the present invention use should " mobile setting up procedure " for by X2 interface TTT between eNB The negotiation of relevant information.

But, the invention is not restricted to use negotiation and the offer of X2 interface TTT relevant information between eNB.Can make Any scheme consulted by the TTT relevant information between eNB and provide.

Fig. 7 is the ladder diagram of the mobile change process illustrating eNB according to an exemplary embodiment of the invention.

With reference to Fig. 7, in order to provide the TTT relevant information of optimization, in step A, eNB1710 is to being connected by X2 interface ENB2720 and the UE being intended to perform the switching from eNB2720 to eNB1710 sends mobile change request message.

That is, this moves change request message and includes the TTT relevant information for its own optimizing cells.Connect at eNB2720 After receiving mobile change request message, eNB2720 determines whether this moves the TTT relevant information that comprises in change request message It it is acceptable value.

If eNB2720 determines that this TTT relevant information is acceptable value, then in step B, eNB2720 forwards to eNB1710 Mobile change as response message confirms message.If eNB2720 does not accept asked TTT relevant information, then in step B, eNB2720 send mobile change failed message to eNB1710.

By following two method, TTT relevant information can be added in mobile change request message.Existing LTE marks Accurate mobile change request message includes referred to as the IE of " moving parameter of eNB2 suggestion ".This IE represents mobile change request message Including the IE of referred to as " moving parameter information ", mobile relevant parameter that to be i.e. used for switching, that eNB1 710 provides to eNB2720 Information, and shown in following table 1.

Table 1

IE/ group name	Existence	Scope	IE type and reference	Semantic description
					Handover trigger changes	M	Integer (-20 ... 20)		Actual value is IE value * 0.5dB

Here, " handover trigger change " refer to the changing value of this threshold value.

The one exemplary embodiment of the present invention provides the two ways for forwarding TTT relevant information.

First, a kind of for representing TTT relevant information by " dB " value and consulting the method for TTT relevant information and be described as follows.

The method is a kind of method representing TTT and threshold value for allowing existing handover trigger to change.To this end, this Bright one exemplary embodiment proposes to add handover trigger type IE in moving parameter information IE.Therefore, show in following table 2 Go out to reflect this moving parameter information IE.

Table 2

Such as, about moving parameter information IE corresponding with the moving parameter of the suggestion of mobile change request message, eNB1 Handover trigger change is set to-3dB and handover trigger type is set to " TimeToTrigger(triggered time) " by 710, and The change of this handover trigger and handover trigger type is sent to eNB2720.If eNB2 720 receives this, then eNB2 720 use TTT value in eNB1 710 is reduced to 0.5 times of currency.

The TTT value of LTE standard ms0, ms40, ms64, ms80, ms100, ms128, ms160, ms256, ms320, Within the scope of ms480, ms512, ms640, ms1024, ms1280, ms2560 and ms5120, and how to depend on " dB " Change TTT value to change according to implementation.

Second, a kind of for by absolute value representation TTT relevant information and consult the method for TTT relevant information and be described as follows.

The method is a process that, changes about handover trigger, it is assumed that it is the changing value of threshold value, and about TTT, Add new IE and consult absolute value.This IE is designated as one of TTT1ms, TTT2ms ..., TTTn ms.Following table 3 shows Go out to reflect this moving parameter information IE.

Table 3

Fig. 8 is the flow chart illustrating the mobile change procedure of eNB according to an embodiment of the invention.

With reference to Fig. 8, when there is, in step 810, the event sending TTT or threshold value (i.e. handover trigger threshold value), then in step 820eNB sends this TTT or threshold value (handover trigger threshold value) to adjacent eNB (i.e. corresponding eNB).

Here, the feelings that this transmission event could be for the TTT of corresponding eNB or threshold value (i.e. handover trigger threshold value) is changed Condition, the situation adding new eNB and this new eNB transmission etc..

The one exemplary embodiment of the present invention proposes one and services eNB according to adjacent eNB to UE independently in LTE system Forward the mode of TTT and Treselection value.

Fig. 9 is to illustrate to forward independently to UE according to adjacent eNB in service eNB according to an exemplary embodiment of the invention The message flow diagram of the process of TTT and Treselection value.

With reference to Fig. 9, in step A, service eNB 910 sends TTT or TTT-to the UE 920 of activation pattern or idle pulley Scale factor (SF)/Treselection or Treselection-SF.It is described below in detail.

Figure 10 is to illustrate to turn independently to UE according to adjacent eNB in service eNB according to an exemplary embodiment of the invention Send out the flow chart of the process of TTT and Treselection value.

With reference to Figure 10, when step 1010 to as if the UE of activation pattern, and enter according to cell type in step 1015 Gone division time, in step 1025, service eNB is provided independently from according to the neighbor cell belonging to specific cell type and sends TTT value or TTT-SF value.

When step 1010 to as if the UE of activation pattern, and divide not according to cell type in step 1015 Time, in step 1020, service eNB is provided independently from and sends TTT value or TTT-SF value according to specific neighbor cell.

When in step 1010 object not being the UE of activation pattern but the UE of idle pulley, and in step 1030 according to little When district's type has carried out division, in step 1040, service eNB is provided independently from according to the neighbor cell belonging to specific cell type And send Treselection value or Treselection-SF value.

When step 1010 to as if the UE of idle pulley and dividing not according to cell type in step 1030 Time, in step 1035, service eNB be provided independently from according to specific neighbor cell and send Treselection value or Treselection-SF value.

Describe a kind of eNB of service below and forward the mode of TTT value according to adjacent eNB to the UE of the pattern of activation independently.

Table 4 illustrate a kind of according to an exemplary embodiment of the invention be provided independently from TTT according to specific neighbor cell The situation of value.Table 4 relates to the specific neighbor cell of a kind of basis and is provided independently from the method (1-1) of TTT value.In association area In LTE system, MeasObjectEUTRA IE includes the information required when the UE of the pattern of activation determines neighbor cell.

Table 4

MeasObjectEUTRA information unit

Table 4 adds " cellIndividualTimeToTrigger " field that highlight color shows and arrives “MeasObjectEUTRA”IE." cellindividualtimetotrigger " field of this interpolation represent be applied to specific The TTT value of the cell individual of neighbor cell.

It is similar to " cellindividualOffset " field of association area, should " cellIndividualTimeToTrigger " field becomes the measurement report according to neighbor cell independent utility and triggers relevant ginseng Number.Therefore, UE can apply TTT value independently according to adjacent eNB.Should shown in following table 5 “celllndividualTimeToTrigger”。

Table 5

Table 6 illustrate according to an exemplary embodiment of the invention be provided independently from TTT-SF value according to specific neighbor cell But the situation of the SF value that application and arranging considers the existing speed state of UE and arranges.Table 6 relates to a kind of according to specific phase Adjacent cell is provided independently from the method (1-2) of TTT-SF value.

Table 6

MeasObjectEUTRA information unit

The current LTE standard of association area applies " velocity dependent " SF according to UE speed.

In the case of the UE of the pattern of activation has high He medium movement, table 6 is medium by SF-high level and SF-respectively Value is multiplied by TTT.

So, UE faster in the case of, table 6 can apply the TTT value less than original given TTT value.That is because, If UE is very fast, then TTT must be arranged lower to increase HO success rate.

The method can also re-use and apply the speed state considering the UE being such as present in current LTE standard to arrange SF value, or single SF value can be newly set.

More specifically, a kind of method that table 6 relates to SF value applied and arrange and consider the existing speed state of UE and arrange , and add " cellIndividualTimeToTrigger-SF " field that highlight color shows to MeasObj (1-2-1) ectEUTRA IE。

" cellIndividualTimeToTrigger-SF " field of this interpolation refers to be applied to specific adjacent little The TTT-SF value of the cell individual in district.In the case of specific neighbor cell, table 6 can be multiplied by original given by this SF value TTT is also set shorter by TTT value.

Here, table 6 applies and considers that the speed state of UE sets present in the current LTE standard being included in association area The SpeedStateScaleFactors I of the SF value put.Further, shown in following table 7 CellIndividualTimeToTrigger-SF。

Table 7

Table 8 illustrates according to an exemplary embodiment of the invention, is provided independently from TTT-SF value according to specific neighbor cell But the situation (1-2-2) of single SF value is newly set.Table 8 adds what highlight color showed " cellIndividualTimeToTrigger-SF " field is to MeasObjectEUTRA IE.

Table 8

MeasObjectEUTRA information unit

" cellIndividualTimeToTrigger-SF " field of this interpolation refers to be applied to specific adjacent little The community single TTT-SF value in district.In the case of specific neighbor cell, table 8 can be multiplied by original given by this SF value TTT is also set shorter by TTT value.

Here, table 8 uses the IE's relating to SF as definition new in the one exemplary embodiment of the present invention CellIndividualScaleFactors IE.CelllndividualTimeToTrigger-shown in following table 9 SF。

Table 9

Further, CellIndividualScaleFactors IE is given below.

CellIndividualScaleFactors information unit

Here, " x_1 ", " x_2 " ... " x_n " are mapped as the value of 0 to 1.

Table 10 represents that a kind of basis according to an exemplary embodiment of the invention belongs to the neighbor cell of specific cell type It is provided independently from the TTT value mode to MeasObjectEUTRA IE.

Table 10 relates to a kind of basis and belongs to the neighbor cell of specific cell type and be provided independently from the method (1-3) of TTT value. Table 10 can be provided independently from (1-3-1) TTT value according to the neighbor cell belonging to specific cell type and arrive MeasObjectEUTRA IE。

Table 10

MeasObjectEUTRA information unit

First, when considering the situation arranging MeasObjectEUTRA IE, table 10 is at this MeasObjectEUTRA " CellTypeList(cell type list) " field shown in newly proposed highlight color in IE.Should " CellTypeList " word Section is designed to have TTT value different from each other for each PCI scope of different districts type.Shown in following table 11 Cell type list.

Table 11

Table 12 represent a kind of according to an exemplary embodiment of the invention, according to belonging to the neighbor cell of specific cell type It is provided independently from the TTT value mode to ReportConfigEUTRA IE.

Table 12 relates to a kind of basis and belongs to the neighbor cell of specific cell type and be provided independently from the method (1-3) of TTT value. Table 12 can be provided independently from (1-3-2) TTT value according to the neighbor cell belonging to specific cell type and arrive ReportConfigEUTRA IE。

Table 12

ReportConfigEUTRA information unit

Table 12 is " CellTypeList " field shown in newly proposed highlight color in ReportConfigEUTRA IE. " CellTypeList " field should be designed to, for each PCI scope of different districts type, there is TTT value different from each other. Here, cell type list shown in following table 13.

Table 13

Table 14 illustrates that application according to an exemplary embodiment of the invention considers the existing speed state of UE and the SF value that arranges And it is provided independently from the TTT-SF value situation to MeasObjectEUTRA IE according to the neighbor cell belonging to specific cell type.

Table 14

MeasObjectEUTRA information unit

Table 14 relates to a kind of basis and belongs to the neighbor cell of specific cell type and be provided independently from the method (1-of TTT-SF value 4).MeasObjectEUTRA IE can will be set to according to the TTT-SF value of the neighbor cell independence belonging to specific cell type (1-4-1) or ReportConfigEUTRA IE(1-4-2).

Table 14 is " CellTypeList " field shown in newly proposed highlight color in MeasObjectEUTRA IE.Should " CellTypeList " field is designed to have TTT-SF different from each other for each PCI scope of different districts type Value.

As in example (1-2), even this example (1-4-1) can apply (1-4-1-1) former state to re-use to be present in and work as The speed state of the consideration UE in front LTE standard and the SF value that arranges.Here, cell type row shown in following table 15 Table.

Table 15

Table 16 represents that basis according to an exemplary embodiment of the invention belongs to the neighbor cell of specific cell type independently Ground newly arranges the TTT-SF value situation to MeasObjectEUTRA IE.

Table 16

MeasObjectEUTRA information unit

Table 16 relates to a kind of basis and belongs to the method that the neighbor cell of specific cell type is provided independently from TTT-SF value.Can So that MeasObj ectEUTRA IE(1-will be arranged according to the TTT-SF value of the neighbor cell independence belonging to specific cell type 4-1) or ReportConfigEUTRA IE(1-4-2).

" CellTypeList " field that table 16 newly proposed highlight color in MeasObjectEUTRA IE shows.Should " CellTypeList " field is designed to have TTT-SF different from each other for each PCI scope of different districts type Value.

It is similar to example (1-2), even this example (1-4-1) can also newly arrange (1-4-1-2) and be present in association area Current LTE standard in the single SF value of speed state of consideration UE.

Table 17

CellIndividualScaleFactors information unit

Here, " x_1 ", " x_2 " ..., " x_n " value are mapped as the value of 0 to 1.

Table 18 represents that application considers the existing speed state of UE and the SF value that arranges, and the exemplary reality according to the present invention Execute example and be provided independently from the feelings of TTT-SF to ReportConfigEUTRA IE according to the neighbor cell belonging to specific cell type Condition.

This relates to a kind of basis and belongs to the neighbor cell of specific cell type and be provided independently from the method (1-of TTT-SF value 4).TTT-SF value according to the neighbor cell independence belonging to specific cell type can be set to MeasObjectEUTRA IE (1-4-1) or ReportConfigEUTRA IE(1-4-2).

Table 18

ReportConfigEUTRA information unit

In superincumbent table 18, the one exemplary embodiment of the present invention is newly proposed height in ReportConfigEUTRA IE " CellTypeList " field that bright color shows.Should " CellTypeList " field be designed to for different districts type Each PCI scope has TTT-SF value different from each other.

It is similar to example (1-2), even this example (1-4-2) to apply to re-use and be present in the current of association area The speed state of the consideration UE in LTE standard and the SF value that arranges.Here, cell type list shown in table 19.

Table 19

Table 20 represents that basis according to an exemplary embodiment of the invention belongs to the neighbor cell of specific cell type independently Ground newly arranges the TTT-SF value situation to ReportConfigEUTRA IE.

Table 20 belongs to the neighbor cell of specific cell type about a kind of basis and is provided independently from the mode (1-of TTT-SF value 4).TTT-SF value according to the neighbor cell independence belonging to specific cell type can be set to MeasObjectEUTRA IE (1-4-1) or ReportConfigEUTRA IE(1-4-2).

Table 20

ReportConfigEUTRA information unit

As in table 20, the one exemplary embodiment of the present invention is newly proposed highlighted face in ReportConfigEUTRA IE " CellTypeList " field that color shows.Should " CellTypeList " field be designed to for different districts type each PCI scope has TTT-SF value different from each other.

It is similar to example (1-2), even this example (1-4-2) and the current LTE being present in association area can also be newly set The single SF value of the speed state of the consideration UE in standard.Here, cell type list shown in following table 21.

Table 21

CelllndividualScaleFactors information unit

Here, " x_1 ", " x_2 " ... " x_n " are mapped as the value of 0 to 1.

Describe a kind of eNB that services below and forward the independent Treselection according to adjacent eNB to the UE of idle pulley The mode of value.

Table 22 represents a kind of being provided independently from according to specific neighbor cell according to an exemplary embodiment of the invention The situation of Treselection value.

Table 22 relates to the specific neighbor cell of a kind of basis and is provided independently from the method (2-1) of Treselection value.? In the LTE standard of association area, eNB can be by SystemlnformationBlock3(SIB3) turn to the UE of idle pulley Send out Treselection value.

Table 22

SystemlnformationBlockType3 information unit

Generally, SIB3 comprises for performing the public information that community is selected again, in being no matter frequency/frequency between/RAT between community Select again.

The constraint of any SIB that this example (2-1) can not receive even if from the UE of idle pulley, but as showing Exemplary embodiment, this example is arranged to currently comprise the SIB3 of Treselection value.

In figure, the one exemplary embodiment of the present invention newly proposed highlight color part in SIB3 shows " cellIndividualInfoList " field.In this " celllndividuallnfoList " field, it is provided with " N " numeral " celIIndividualInfo " field.

In this " cellIndividualInfo " field, it is provided with as each neighbor cell independence " celllndividual-t-Reselection " field of Treselection value.Following table 23 shows PhyCellId and cellIndividual-t-ReselectionEUTRA.

Table 23

Table 24 relate to a kind of according to an exemplary embodiment of the invention, apply independently also according to specific neighbor cell The SF value that considers the existing speed of UE and the arrange method to Treselection-SF value is set.

Table 24 relates to the specific neighbor cell of a kind of basis and is provided independently from the method (2-2) of Treselection-SF value. As TTT-SF, current LTE standard application is according to " velocity dependent " SF of the speed of UE.

Table 24

SystemlnformationBlockType3 information unit

In the case of the UE of idle pulley has high He medium movement, table 24 application SF-high level and SF-are medium Value is multiplied by Treselection value.So, in the case of UE speed, table 24 can be applied less than original given The Treselection value of Treselection value.

Example (2-2) can be applied the speed state of the consideration idle pulley UE that (2-2-1) be present in LTE standard and set The SF value put, or (2-2-2) individually SF value can be newly set.

Further, this example (2-2) even if any the SIB no matter UE of idle pulley can receive, but as exemplary Embodiment, this example is arranged to currently comprise the SIB3 of Treselection-SF value.

In figure, the one exemplary embodiment of the present invention newly proposed highlight color part in SIB3 shows " cellIndividualInforList " field.In this " cellIndividualInfoList " field, it is provided with " N " number " celIIndividualInfo " field of word.

In this " cellIndividualInfo " field, it is provided with as independent for each neighbor cell " celllndividual-t-Reselection-SF " field of Treselection-SF value.

" cellIndividual-t-Reselection-SF " field of this interpolation refers to be applied to specific adjacent little The community single Treselection-SF value in district.In the case of specific neighbor cell, table 24 can be multiplied by by this SF value TTT is also set shorter by originally given Treselection value.

Here, table 24 applies the speed state of the consideration UE that (2-2-1) includes being present in LTE standard as it is and sets The SpeedStateScaleFactors IE of the SF value put.Here, show in following table 25 phyCellId and cellIndividual-t-ReselectionEUTRA-SF。

Table 25

Table 26 illustrate according to an exemplary embodiment of the invention according to specific neighbor cell, list is newly set Only SF value is to the situation of Treselection-SF value.

In the case of newly arranging single SF value, the one exemplary embodiment of the present invention is newly proposed highlighted face in SIB3 " cellIndividualInfoList " field that color part shows.

Table 26

SystemInformationBlockType3 information unit

In this " cellIndividualInfoList " field, it is provided with " N " numeral " celIIndividualInfo " field.In this " cellIndividualInfo " field, it is provided with as according to adjacent little District and " celllndividual-t-Reselection-SF " field of independent Treselection-SF value.

" cellIndividual-t-Reselection-SF " field of this interpolation refers to be applied to specific adjacent little The community single Treselection-SF value in district.In the case of specific neighbor cell, table 26 can be multiplied by by this SF value TTT is also set shorter by originally given Treselection value.

Here, the one exemplary embodiment of the present invention uses (2-2-2) as the IE's relating to scale factor of new definition “CellIndividuaIScaleFactors”.Here, show in following table 27 phyCellId and cellIndividual-t-ReselectionEUTRA-SF。

Table 27

CelllndividualScaleFactors information unit

Here, " x_1 ", " x_2 " ... " x_n " value is mapped as the value of 0 to 1.

Table 28 illustrates that a kind of basis according to an exemplary embodiment of the invention belongs to the neighbor cell of specific cell type The situation of Treselection value is set.

Table 28 relates to a kind of basis and belongs to the neighbor cell of specific cell type and be independently arranged Treselection value Method (2-3).Table 28 not from idle pulley UE can the constraint of any SIB of reception, but as exemplary Embodiment, table 28 is currently set as comprising the SIB3 of Treselection value.

Table 28

SystemInformationBlockType3 information unit

In table 28, the one exemplary embodiment of the present invention newly proposed highlight color part in SIB3 shows " cellIndividualInfoList " field.In this " cellIndividualInfoList " field, it is provided with " N " numeral " celIIndividualInfo " field.

In this " cellIndividualInfo " field, it is provided with as certain types of each PCI scope " celllndividual-t-ReselectionEUTRA " field of independent Treselection value.In following table 29 Display phyCellIdRange and cellIndividua 1-t-ReselectionEUTRA.

Table 29

Table 30 relate to a kind of according to an exemplary embodiment of the invention, SF that application considers the existing speed of UE and arranges Value and the method that Treselection-SF value is set according to the neighbor cell belonging to specific cell type.

Table 30 relates to a kind of basis and belongs to the neighbor cell of specific cell type and be provided independently from Treselection-SF The method (2-4) of value.Any SIB that table 30 can receive regardless of the UE of idle pulley, as one exemplary embodiment, table 30 is set It is set to currently comprise the SIB3 of Treselection-SF value.Example (2-4) can consider application and arrange the existing speed considering UE Degree state and the example (2-4-1) of SF value that arranges.

Table 30

SystemlnformationBlockType3 information unit

As in table 30, the one exemplary embodiment of the present invention newly proposed highlight color part in SIB3 shows " cellIndividualInfoList " field.In this " cellIndividualInfoList " field, it is provided with " N " numeral " celIIndividualInfo " field.

In this " cellIndividualInfo " field, it is provided with as each PCI model for specific cell type Enclose and " cellIndividual-t-ReselectionEUTRA " field of independent Treselection value.

" cellIndividual-t-Reselection-SF " field of this interpolation refers to be applied to specific adjacent little The community single Treselection-SF value in district.In the case of specific neighbor cell, table 30 can be multiplied by by this SF value TTT is also set shorter by originally given Treselection value.

Here, SpeedStateScaleFactors IE applied by table 30, and it is the association area that is present in as it is The speed state of the consideration UE in LTE standard and the SF value that arranges.Here, in following table 31, phyCellIdRange is shown And cellIndividual-t-ReselectionEUTRA-SF.

Table 31

Table 32 relate to a kind of according to an exemplary embodiment of the invention, consider the existing speed of UE, according to belonging to specific The neighbor cell of cell type and method that Treselection-SF value is newly set.

Table 31 relates to according to belonging to the neighbor cell of specific cell type and being provided independently from Treselection-SF value Method (2-4).Any SIB that table 31 can receive regardless of the UE of idle pulley, but as one exemplary embodiment, table 31 is set It is set to currently comprise the SIB3 of Treselection-SF value.Example (2-4) can consider such example (2-4-2), and it considers The existing speed state of UE and single SF value is set.

Table 32

SystemInformationBlockType3 information unit

As in table 32, the one exemplary embodiment of the present invention newly proposed highlight color part in SIB3 shows " cellIndividualInfoList " field.

In this " cellIndividualInfoList " field, it is provided with " N " numeral " cellIndividualInfo " field.In this " cellIndividualInfo " field, it is provided with as specific little Each PCI scope of district's type and the " cellIndividual-t-of independent Treselection value ReselectionEUTRA " field.

" cellIndividual-t-Reselection-SF " field of this interpolation refers to be applied to specific adjacent little The community single Treselection-SF value in district.In the case of specific neighbor cell, table 32 can be multiplied by by this SF value TTT is also set shorter by originally given Treselection value.

Here, table 32 applies the IE's relating to scale factor that includes newly defining “SpeedStateScaleFactors”.Here, in following table 33, phyCellId and cellIndividual-t-is shown ReselectionEUTRA-SF。

Table 33

CellIndividualScaleFactors information unit

Here, " x_1 ", " x_2 " ... " x_n " value is mapped as the value of 0 to 1.

Figure 11 is the block diagram of the structure illustrating eNB or UE according to an exemplary embodiment of the invention.

With reference to Figure 11, this eNB(or this UE) include duplexer 1100, rf reception device 1102, analog-digital converter (ADC) 1104, OFDM (OFDM) demodulator 1106, decoder 1108, message handling device 1110, controller 1112, Message generator 1114, encoder 1116, OFDM manipulator 1118, digital to analog converter (DAC) 1120 and RF transmitter 1122.

According to duplexing schemes, duplexer 1100 forwards the signal received from antenna, and passes through antenna to RF receptor 1102 Signal is sent from RF transmitter 1122.

RF signal from duplexer 1100 is converted to base-band analog signal by RF receptor 1102.ADC1104 will be from The analogue signal of RF receptor 1102 is converted to sampled data.Ofdm demodulator 1106 processes with fast Fourier transform (FFT) From the sampled data of ADC 1104 output, and output frequency numeric field data.

Decoder 1108, in the frequency domain data from ofdm demodulator 1106, selects to be intended to the number of the subcarrier of reception According to (i.e. bursty data), and according to predefined modulation levels (that is, modulation and encoding scheme (MCS) rank) by demodulation and Data selected by decoding process.

Message handling device 1110 detects packet (such as, the media interviews of scheduled unit in the data of decoder 1108 Control protocol data cell (MAC PDU)), and perform head and the error detection of packet for detecting.At this moment wait, as Really it is confirmed as controlling message by header detection, then message handling device 1110 resolves this control according to defined standard and disappears Breath, and provide this result to controller 1112.That is, message handling device extracts various control letter from the control message received Breath, and the control information extracted is forwarded to controller 1112.

Controller 1112 performs corresponding process based on the information from message handling device 1110.Equally, send when needs When controlling message, controller 1112 generates the information of correspondence and provides the information of this generation to message builder 1114.Message is raw The various information that 1114 utilizations of growing up to be a useful person provide from controller 1112 are to generate message, and export generated message to physical layer Encoder 1116.

Encoder 1116 encodes and modulates from message builder 1114 according to predefined modulation levels (i.e. MCS rank) Data.OFDM manipulator 1118 and is exported from the data of encoder 1116 by inverse fast fourier transform (IFFT) process Sampled data (i.e. OFDM symbol).This sampled data is converted to analogue signal by DAC 1120.RF transmitter 1122 will be from DAC The analogue signal of 1120 is converted to RF signal and sends this RF signal by antenna.

In said structure, the controller 1112 as protocol controller controls message handling device 1110 and message builder 1114.That is, controller 1112 can perform message handling device 1110 and the function of message builder 1114.Demonstration in the present invention Property embodiment construct respectively and shows these, in order to distinguishing and describe respective function.Therefore, in practical implementations, permissible It is constructed so as to process all of function in controller 1112, or can be constructed so as in controller 1112 only locate Reason partial function.

It follows that structure based on Figure 11, it is respectively described the operation of eNB and UE.

About the description of eNB, controller 1112 has independently produced TTT and the handover trigger of its own according to adjacent eNB Threshold value, or read TTT and handover trigger threshold value from memory element (not shown), and provide this TTT to message builder 1114 With handover trigger threshold value.Message builder 1114 generates the message of correspondence, and exports the message generated to encoder 1116.Control Device 1112 processed, when receiving the control message of one exemplary embodiment of the present invention (i.e. IE) from message handling device 1110, performs correspondence Process.

Or, it is all that controller 1112 generates as the information to UE, present invention one exemplary embodiment to be sent Such as the information of TTT, TTT-SF, Treselection, Treselection-SF etc., or read from memory element (not shown) should Information, and provide this information to message generator 1114.Message builder 1114 generates the message of correspondence, and to encoder 1116 Export this message.

About the description of UE, when from message handling device 1110 receive such as TTT, TTT-SF, Treselection, During the information of Treselection-SF etc., controller 1112 enables when UE performs switching or this information is applied when selecting in community again Operation.

Hereafter, the performance evaluation of the one exemplary embodiment of the present invention is described as follows.Community, the torrid zone described herein is with small District is identical.

Figure 12 is to illustrate according to an exemplary embodiment of the invention when load factor is 50% and UL interoperability testing (IoT) figure of the result of HO mortality when being 5dB, and Figure 13 is to illustrate to work as load factor according to an exemplary embodiment of the invention It it is 100% and UL IoT figure of the result of HO mortality when being 7dB.

With reference to Figure 12, in system administration definition, acceptable HO mortality is equal to 2%, so can from performance map above To understand, the DL from macrocell to macrocell 50% load in environment optimum arrange parameter be TTT=80 to 160ms and Cell individual offsets (CIO)=1 to 3dB, and in the environment from macrocell to Microcell optimal setting parameter be TTT=0 to 80ms and CIO=1 to 3dB.

With reference to Figure 13, it is understood that, in 100% load environment from macrocell to macrocell, optimum arranges parameter TTT=40ms and CIO=1dB, and in the environment from macrocell to Microcell optimal setting parameter be TTT=0ms and CIO=1 to 3dB.

As it has been described above, the one exemplary embodiment advantage of the present invention is, it is possible to improve the HO between macrocell and Microcell Run succeeded rate, because consult TTT phase between grand eNB and micro-eNB when UE performs the switching between macrocell and Microcell Close the HO success that Informational support is stable.

Equally, the one exemplary embodiment of the present invention has the advantage that, in order to perform in LTE system macrocell and small Stable switching between district, service eNB can forward TTT value according to specific adjacent eNB to pattern UE of activation independently.

Equally, the one exemplary embodiment of the present invention proposes to perform between macrocell and Microcell in LTE system stable Community select again, eNB forwards to the UE of idle pulley individually according to the neighbor cell belonging to specific cell type The mode of Treselection value, thus advantageously improve the HO between macrocell and Microcell and run succeeded rate.

Although illustrating and describe the present invention with reference to its particular exemplary embodiment, but those skilled in the art should Understand, can in the case of without departing from by the spirit and scope of the present invention defined in claims and equivalents thereof In form and details, it is carried out various change.

Claims

1. one kind services BS in mobile communication system to MS offer measurement after movement station (MS) measures adjacent base station (BS) The method of the information needed for report triggering execution, described method includes:

Described MS be activation pattern MS in the case of, described service BS provide to the MS of described activation pattern include indicating right The message of information in the triggered time (TTT) of each neighbor bss belonging to specific cell type；And

Described MS be idle pulley MS in the case of, described service BS provide to the MS of described idle pulley include indicating right Message in the information selecting the time period (Treselection) again of each neighbor bss belonging to specific cell type.

The most the method for claim 1, wherein TTT is provided to include to the MS of described activation pattern: MeasObjectEUTRA information unit (IE) comprises the described TTT for each neighbor bss the MS to described activation pattern Described MeasObjectEUTRA IE is provided, and

Wherein, Treselection is provided to include to the MS of described idle pulley: it is described right to comprise in system information block (SIB) Treselection in each neighbor bss the MS to described idle pulley provide described SIB.

3. the method for claim 1, farther includes:

Described MS be activation pattern MS in the case of, MS from described service BS to described activation pattern provide for specifically The TTT scale factor (SF) of neighbor bss independence；And

Described MS be idle pulley MS in the case of, MS from described service BS to described idle pulley provide for specifically The Treselection-SF of neighbor bss independence.

4. method as claimed in claim 3, wherein, provides independent TTT-SF to include to the MS of described activation pattern: MeasObjectEUTRA information unit (IE) comprises TTT-SF and provides described to the MS of described activation pattern MeasObjectEUTRA IE, wherein said TTT-SF apply the SF value considering the speed of described MS and arrange, or in institute State MeasObjectEUTRA IE comprises and be newly provided with the TTT-SF of independent SF value and provide institute to the MS of described activation pattern State MeasObjectEUTRA IE, and

Wherein, independent Treselection-SF is provided to include to the MS of described idle pulley: in system information block (SIB) Comprise Treselection-SF and the MS to described idle pulley provides this SIB, wherein said Treselection-SF to apply The speed of consideration described MS and the SF value that arranges, or comprise in described SIB and be newly provided with independent SF value Treselection-SF also provides described SIB to the MS of described idle pulley.

5. the method for claim 1, farther includes:

Described MS be activation pattern MS in the case of, described service BS provides for belonging to special to the MS of described activation pattern Determine the TTT of the neighbor bss independence of cell type；And

Described MS be idle pulley MS in the case of, described service BS provides for belonging to special to the MS of described idle pulley Determine the Treselection of the neighbor bss independence of cell type.

6. method as claimed in claim 5, wherein, provides for belonging to specific cell type to the MS of described activation pattern The TTT of neighbor bss independence includes: the TTT arranging the neighbor bss independence for belonging to specific cell type arrives MeasObjectEUTRA information unit (IE), and provide described MeasObjectEUTRA IE to the MS of described activation pattern, or Person arranges TTT to the ReportConfigEUTRA IE of the neighbor bss independence for belonging to specific cell type, and swashs to described The MS of the pattern of living provides described ReportConfigEUTRA IE, and

Wherein, the Treselection of neighbor bss independence for belonging to specific cell type is provided to the MS of described idle pulley Including: in system information block (SIB), comprise the Treselection of neighbor bss independence for belonging to specific cell type also Described SIB is provided to the MS of described idle pulley.

7. the method for claim 1, farther includes:

Described MS be activation pattern MS in the case of, described service BS provides for belonging to special to the MS of described activation pattern Determine the TTT scale factor (SF) of the neighbor bss independence of cell type；And

Described MS be idle pulley MS in the case of, described service BS provides for belonging to special to the MS of described idle pulley Determine the Treselection-SF of the neighbor bss independence of cell type.

8. method as claimed in claim 7, wherein, provides for belonging to specific cell type to the MS of described activation pattern The TTT-SF of neighbor bss independence includes: in MeasObjectEUTRA information unit (IE) or ReportConfigEUTRA IE Comprise TTT-SF, and provide described MeasObjectEUTRA IE or ReportConfigEUTRA to the MS of described activation pattern IE, wherein said TTT-SF apply the SF value considering the speed of described MS and arrange, or at described MeasObjectEUTRA IE or ReportConfigEUTRA IE comprises the TTT-SF being newly provided with single SF value, and to the MS of described activation pattern Described MeasObjectEUTRA IE or ReportConfigEUTRA IE is provided, and

Wherein, to the MS offer of described idle pulley for belonging to the neighbor bss independence of specific cell type Treselection-SF includes: comprise Treselection-SF in system information block (SIB) and to described idle pulley MS provides this SIB, wherein said Treselection-SF to apply the SF value considering the described speed of described MS and arrange, or Person comprise in described SIB be newly provided with independent SF value Treselection-SF and to described idle pulley MS provide should SIB。

9. a device for serving BS (BS), for providing the letter of neighbor bss in mobile communication system to movement station (MS) Breath, described device includes:

Controller, is used for: described MS be activation pattern MS in the case of, produce include instruction belong to specific little for each The message of the information in the triggered time (TTT) of the neighbor bss of district's type, and described MS be idle pulley MS in the case of, Produce the message including indicating the information of the Treselection for each neighbor bss belonging to specific cell type；With

Transmitter, for sending produced TTT and for sending out to the MS of described idle pulley to the MS of described activation pattern Send produced Treselection.

10. device as claimed in claim 9, wherein, described controller is bag in MeasObjectEUTRA information unit (IE) Described MeasObjectEUTRA IE is provided, thus containing the described TTT for each neighbor bss and to the MS of described activation pattern Independent TTT is provided to the MS of described activation pattern, and

Wherein, described controller comprises the described Treselection for each neighbor bss also in system information block (SIB) There is provided described SIB to the MS of described idle pulley, thus provide independent Treselection to the MS of described idle pulley.

11. devices as claimed in claim 9, wherein, described MS be activation pattern MS in the case of, described controller to The MS of described activation pattern provides the TTT scale factor (SF) for specific neighbor bss independence, and

Wherein, described MS be idle pulley MS in the case of, MS from described controller to described idle pulley provide for The Treselection-SF of specific neighbor bss independence.

12. devices as claimed in claim 9, wherein, described controller is bag in MeasObjectEUTRA information unit (IE) Described MeasObjectEUTRA IE, wherein said TTT-is provided containing TTT scale factor (SF) and to the MS of described activation pattern SF applies the SF value considering the speed of described MS and arrange, or comprises new setting in described MeasObjectEUTRA IE The TTT-SF of independent SF value also provides described MeasObjectEUTRA IE to the MS of described activation pattern, thus swashs to described The MS of the pattern of living provides independent TTT-SF, and

Wherein, described controller comprises Treselection-SF the MS to described idle pulley in system information block (SIB) Described SIB, wherein said Treselection-SF is provided to apply the SF value considering the speed of described MS and arrange, or Described SIB comprises and is newly provided with the Treselection-SF of independent SF value and provides described to the MS of described idle pulley SIB, thus provides independent Treselection-SF to the MS of described idle pulley.

13. devices as claimed in claim 9, wherein, described MS be activation pattern MS in the case of, described controller to The MS of described activation pattern provides the TTT of the neighbor bss independence for belonging to specific cell type, and

Wherein, described MS be idle pulley MS in the case of, MS from described controller to described idle pulley provide for Belong to the Treselection of the neighbor bss independence of specific cell type.

14. devices as claimed in claim 13, wherein, described controller is arranged for the neighbor bss belonging to specific cell type Independent TTT to MeasObjectEUTRA information unit (IE), and provide described to the MS of described activation pattern MeasObjectEUTRA IE, or the TTT arranging neighbor bss independence for belonging to specific cell type arrives ReportConfigEUTRA IE, and to the MS described ReportConfigEUTRA IE of offer of described activation pattern, thus, to The MS of described activation pattern provides the TTT of the neighbor bss independence for belonging to specific cell type, and

Wherein, described controller comprises the neighbor bss independence for belonging to specific cell type in system information block (SIB) Treselection the MS to described idle pulley provide this SIB, thus provide for belonging to the MS of described idle pulley The Treselection of the neighbor bss independence of specific cell type.

15. devices as claimed in claim 9, wherein, described MS be activation pattern MS in the case of, described controller to The MS of described activation pattern provides the TTT-scale factor (SF) of the neighbor bss independence for belonging to specific cell type；And

Described MS be idle pulley MS in the case of, described controller provides for belonging to special to the MS of described idle pulley Determine the Treselection-SF of the neighbor bss independence of cell type.

16. devices as claimed in claim 15, wherein, described controller at MeasObjectEUTRA information unit (IE) or ReportConfigEUTRA IE comprises TTT-SF, and provides described MeasObjectEUTRA to the MS of described activation pattern IE or ReportConfigEUTRA IE, wherein said TTT-SF apply the SF value considering the speed of described MS and arrange, or Person comprises in described MeasObjectEUTRA IE or ReportConfigEUTRA IE and is newly provided with single SF value TTT-SF, and provide described MeasObjectEUTRA IE or ReportConfigEUTRA IE to the MS of described activation pattern, Thus, to the TTT-SF of the MS offer of the described activation pattern neighbor bss independence for belonging to specific cell type, and

Wherein, described controller comprises Treselection-SF the MS to described idle pulley in system information block (SIB) Described SIB, wherein said Treselection-SF is provided to apply the SF value considering the speed of described MS and arrange, or Described SIB comprises and is newly provided with the Treselection-SF of independent SF value and provides described to the MS of described idle pulley SIB, thus provides the Treselection-of neighbor bss independence for belonging to specific cell type to the MS of described idle pulley SF。