CN107889066A - A kind of residence reselecting, base station and terminal - Google Patents

A kind of residence reselecting, base station and terminal Download PDF

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Publication number
CN107889066A
CN107889066A CN201610875291.8A CN201610875291A CN107889066A CN 107889066 A CN107889066 A CN 107889066A CN 201610875291 A CN201610875291 A CN 201610875291A CN 107889066 A CN107889066 A CN 107889066A
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China
Prior art keywords
cell
reference signal
multicast service
terminal
signal received
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CN201610875291.8A
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CN107889066B (en
Inventor
张元�
梁靖
傅婧
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention provides a kind of residence reselecting, base station and terminal, it is related to the communications field, applied to the residence reselecting of base station side, including：Determine the cell reselection types that network is currently supported；According to the cell reselection types, cell reselection is sent with reference to factor to terminal so that the terminal carries out the gravity treatment of cell according to the cell reselection with reference to factor.Applied to the residence reselecting of end side, including：Receive the cell reselection that base station is sent and refer to factor；Obtain the preset rules that terminal carries out cell reselection；Factor is referred to according to the preset rules and the cell reselection, determines the cell after gravity treatment.The present invention improves the efficiency of receiving multicast traffic after terminal housing estate gravity treatment, while reduce the power consumption of terminal receiving multicast traffic by way of providing the cell reselection for the terminal that multicast service is supported under multicarrier.

Description

A kind of residence reselecting, base station and terminal
Technical field
The present invention relates to communication technical field, more particularly to a kind of residence reselecting, base station and terminal.
Background technology
Arrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) working stage (Work Item, WI) (Release 13, the R13) stage of 3GPP versions 13 by and start.The target of arrowband Internet of Things working stage is to honeybee The wireless access of nest Internet of Things (Cellular Internet of Things, CIoT) carries out technology standardization, and technology is based on length The follow-up evolution (LTE-A) of phase evolution (LTE)/Long Term Evolution is extended, and the network characteristic/target mainly considered is：Enhancing In-door covering, support a large amount of low-speed devices to access, low time delay sensitiveness, reduce equipment cost, reduce equipment power dissipation, optimize network Framework etc..
The NB-IoT terminals of one reality can have Hypomobility, real-time is wanted with the data transfer that network side is carried out Ask not high, require extremely low power consumption and only carried out between network side small data quantity information transfer and with it is low realize it is multiple The characteristics such as miscellaneous degree.
In order to mitigate cell load, NB-IoT supports a variety of carrier operations, under multi-carrier operation, carrier wave be divided into main carrier and Secondary carrier.Wherein, terminal can receive arrowband Physical Broadcast Channel (NPBCH)/arrowband master sync signal (NPSS) on main carrier, Arrowband auxiliary synchronous signals (NSSS) and in-band signaling (SIB) transmit, and R13 terminals currently only it is expected arrowband physical down in secondary carrier Control channel (NB-PDCCH)/arrowband Physical Downlink Shared Channel (NB-PDSCH) and/or arrowband Physical Uplink Shared Channel (NB-PUSCH), because NB-IoT terminals are due to limited ability, it is impossible to while work over a number of carriers.In R13, terminal carries out small Area's gravity treatment can only reference target cell main carrier Reference Signal Received Power (Reference Signal Receiving Power, RSRP) value or reference signal the quality of reception (Reference Signal Received Quality, RSRQ) value, In R14, the down transmitting power of main carrier and secondary carrier can need to adjust according to operator.
NB-IoT supports the terminal of multicast service by measuring behind main carrier RSRP re-selecting cells, it is necessary to supporting multicast industry Receiving multicast traffic on the carrier wave of business, it is less than main load when supporting the carrier wave of multicast service for non-main carrier and its down transmitting power During the down transmitting power of ripple, it may cause that the time delay of terminal receiving multicast traffic is elongated, power consumption increase.NB-IoT supports multicast The terminal of business is by measuring behind main carrier RSRQ re-selecting cells, it is necessary to receiving multicast industry on the carrier wave for supporting multicast service Business, when supporting the carrier wave of multicast service to be the RSRQ that non-main carrier and its RSRQ are less than main carrier, terminal may be caused to receive The time delay of multicast service is elongated, power consumption increase.It follows that in the case where terminal supports multicast service, can not realize efficiently Cell reselection.
The content of the invention
It is existing to solve the technical problem to be solved in the present invention is to provide a kind of residence reselecting, base station and terminal In the case where terminal supports multicast service, the problem of efficient cell reselection can not be realized.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of residence reselecting, including：
Determine the cell reselection types that network is currently supported；
According to the cell reselection types, cell reselection is sent with reference to factor to terminal so that the terminal is according to Cell reselection carries out the gravity treatment of cell with reference to factor.
Further, the transmission cell reselection includes with reference to factor to the step of terminal：
Cell reselection is sent in single cell multicast control channel with reference to factor to terminal, wherein, the cell reselection ginseng Examining factor includes the single cell multicast service channel configuration information of serving cell and the multicast service of support serving cell of terminal Terminal adjacent cell information, and the information of the adjacent cell includes：The main carrier frequency of cell identity information and cell is believed Breath, single cell multicast service channel configuration information of the serving cell include：The multicast conversation information of serving cell, service are small Transmission mark corresponding to single cell multicast service channel in area, serving cell single cell multicast service channel schedule information, Whether the adjacent cell supports the configured information of the multicast service of serving cell support and adjacent cell to send multicast service carrier wave Presupposed information；Or
Cell reselection is sent in single cell multicast control channel with reference to factor to terminal, wherein, the cell reselection ginseng Examining factor includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast industry The presupposed information of business carrier wave；Or
Broadcast the message by the first system and send cell reselection with reference to factor to terminal, wherein, the cell reselection reference Factor includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast service The presupposed information of carrier wave.
Further, it is described when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power Presupposed information is the difference that adjacent cell sends the transmission power of multicast service carrier wave and the transmission power of its main carrier；
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the presupposed information is Adjacent cell sends the frequency of multicast service carrier wave.
Further, the residence reselecting, in addition to：
According to the cell reselection types, broadcast the message to send to adjust corresponding to cell reselection types by second system and join Number is to the terminal.
Further, it is described when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power Adjusting parameter corresponding to cell reselection types includes calculating the bias of Reference Signal Received Power and/or the bias and neighbour Cell sends the corresponding relation of the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier；
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the cell reselection class Adjusting parameter corresponding to type includes calculating the adjustment amount of Reference Signal Received Quality and/or the adjustment amount and reference signal reception First predetermined number of the preferable adjacent cell of corresponding relation and terminal of quality.
The embodiment of the present invention provides a kind of base station, including：
First determining module, the cell reselection types currently supported for determining network；
First sending module, for according to the cell reselection types, sending cell reselection with reference to factor to terminal so that The terminal carries out the gravity treatment of cell according to the cell reselection with reference to factor.
Further, first sending module is used for：
Cell reselection is sent in single cell multicast control channel with reference to factor to terminal, wherein, the cell reselection ginseng Examining factor includes the single cell multicast service channel configuration information of serving cell and the multicast service of support serving cell of terminal Terminal adjacent cell information, and the information of the adjacent cell includes：The main carrier frequency of cell identity information and cell is believed Breath, single cell multicast service channel configuration information of the serving cell include：The multicast conversation information of serving cell, service are small Transmission mark corresponding to single cell multicast service channel in area, serving cell single cell multicast service channel schedule information, Whether the adjacent cell supports the configured information of the multicast service of serving cell support and adjacent cell to send multicast service carrier wave Presupposed information；Or
Cell reselection is sent in single cell multicast control channel with reference to factor to terminal, wherein, the cell reselection ginseng Examining factor includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast industry The presupposed information of business carrier wave；Or
Broadcast the message by the first system and send cell reselection with reference to factor to terminal, wherein, the cell reselection reference Factor includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast service The presupposed information of carrier wave.
Further, it is described when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power Presupposed information is the difference that adjacent cell sends the transmission power of multicast service carrier wave and the transmission power of its main carrier；
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the presupposed information is Adjacent cell sends the frequency of multicast service carrier wave.
Further, the base station, in addition to：
Second sending module, for according to the cell reselection types, being broadcast the message by second system and sending cell weight Adjusting parameter corresponding to type is selected to the terminal.
Further, it is described when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power Adjusting parameter corresponding to cell reselection types includes calculating the bias of Reference Signal Received Power and/or the bias and neighbour Cell sends the corresponding relation of the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier；
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the cell reselection class Adjusting parameter corresponding to type includes calculating the adjustment amount of Reference Signal Received Quality and/or the adjustment amount and reference signal reception First predetermined number of the preferable adjacent cell of corresponding relation and terminal of quality.
The embodiment of the present invention provides a kind of residence reselecting, including：
Receive the cell reselection that base station is sent and refer to factor；
Obtain the preset rules that terminal carries out cell reselection；
Factor is referred to according to the preset rules and the cell reselection, determines the cell after gravity treatment.
Further, the transmission power of adjacent cell transmission multicast service carrier wave is included when the cell reselection refers to factor It is basis when supporting the cell of terminal pre-set business with the difference of the transmission power of its main carrier and the preset rules The step of preset rules and the cell reselection refer to factor, determine the cell after gravity treatment includes：
It is determined that support the first community of terminal pre-set business；
Measure the Reference Signal Received Power that each cell in the first community supports the carrier wave of multicast service；
Judge that the Reference Signal Received Power in the first community with the presence or absence of the carrier wave for supporting multicast service meets S standards Second community then；
If the second community be present, each cell in the second community is supported to the ginseng of the carrier wave of multicast service Examine signal reception power and obtain the first Reference Signal Received Power plus corresponding difference, by the second community The maximum cell of one Reference Signal Received Power is as the cell after gravity treatment；
If the second community is not present, the reference signal of the main carrier of all adjacent cells of measuring terminals receives work( Rate, using the maximum cell of the Reference Signal Received Power of the main carrier in all adjacent cells as the cell after gravity treatment.
Further, the transmission power of adjacent cell transmission multicast service carrier wave is included when the cell reselection refers to factor It is all adjacent cells and considers to support terminal to preset multicast industry with the difference of the transmission power of its main carrier and the preset rules It is described to refer to factor according to the preset rules and the cell reselection during priority of the cell of business, determine small after gravity treatment The step of area, includes：
Adjusting parameter corresponding to the cell reselection types that base station is sent is obtained, adjustment ginseng corresponding to the cell reselection types Number includes the bias for calculating Reference Signal Received Power and/or the bias sends the hair of multicast service carrier wave with adjacent cell Penetrate power and the corresponding relation of the difference of the transmission power of its main carrier；
It is determined that support the 3rd cell of terminal pre-set business；
Measure the Reference Signal Received Power that each cell in the 3rd cell supports the carrier wave of multicast service；
Judge that the Reference Signal Received Power in the 3rd cell with the presence or absence of the carrier wave for supporting multicast service meets S standards The 4th cell then；
The Reference Signal Received Power of the carrier wave of the support multicast service of each cell in 4th cell is added Corresponding biasing is worth to the second Reference Signal Received Power；
Select to be not belonging to the support of the 4th cell in the second Reference Signal Received Power, the 3rd cell in all 4th cells The Reference Signal Received Power of the carrier wave of multicast service and the reference letter for not supporting main carrier in the cell of terminal pre-set business The maximum cell of number receiving power is as the cell after gravity treatment.
Further, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave frequency and It is described to be referred to according to the preset rules and the cell reselection when preset rules is support the cell of terminal pre-set business Factor, the step of determining the cell after gravity treatment, include：
It is determined that support the 5th cell of terminal pre-set business；
Measure the Reference Signal Received Quality that each cell in the 5th cell supports the carrier wave of multicast service；
Judge that the Reference Signal Received Quality in the 5th cell with the presence or absence of the carrier wave for supporting multicast service meets S standards The 6th cell then；
If the 6th cell be present, the reference signal of the carrier wave of the support multicast service in the 6th cell is connect The maximum cell of quality is received as the cell after gravity treatment；
If the 6th cell is not present, the reference signal of the main carrier of all adjacent cells of measuring terminals receives matter Amount, using the maximum cell of Reference Signal Received Quality in all adjacent cells as the cell after gravity treatment.
Further, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave frequency and It is described according to institute when the preset rules are all adjacent cells and consider to support the priority of the cell of the default multicast service of terminal State preset rules and include the step of the cell reselection refers to factor, determines the cell after gravity treatment：
Adjusting parameter corresponding to the cell reselection types that base station is sent is obtained, adjustment ginseng corresponding to the cell reselection types Number includes the adjustment amount and/or the corresponding relation of the adjustment amount and Reference Signal Received Quality for calculating Reference Signal Received Quality With the first predetermined number of the preferable adjacent cell of terminal；
The Reference Signal Received Quality of the main carrier of all adjacent cells of measuring terminals；
According to the Reference Signal Received Quality of the main carrier of all adjacent cells, it is determined that meeting that the first of S criterions presets The seven cell of number；
Measure each cell in the seven cell and send the reference signal reception matter that terminal presets the carrier wave of multicast service Amount；
Judge that the Reference Signal Received Quality in the seven cell with the presence or absence of the carrier wave for supporting multicast service meets S standards The 8th cell then；
When eight cell be present, the 8th cell is supported the reference signal of the carrier wave of multicast service receive matter Amount adds the adjustment amount, obtains the first Reference Signal Received Quality；
The 8th cell will be not belonging in the first Reference Signal Received Quality in 8th cell and seven cell A cell maximum in the Reference Signal Received Quality of the carrier wave of multicast service is supported, as the cell after terminal gravity treatment.
The embodiment of the present invention provides a kind of terminal, including：
Receiving module, the cell reselection for receiving base station transmission refer to factor；
Acquisition module, the preset rules of cell reselection are carried out for obtaining terminal；
Second determining module, for referring to factor according to the preset rules and the cell reselection, after determining gravity treatment Cell.
Further, the transmission power of adjacent cell transmission multicast service carrier wave is included when the cell reselection refers to factor It is when supporting the cell of terminal pre-set business described second with the difference of the transmission power of its main carrier and the preset rules Determining module includes：
First determining unit, for determining the first community of support terminal pre-set business；
First measuring unit, the reference letter for supporting the carrier wave of multicast service for measuring each cell in the first community Number receiving power；
First judging unit, for judging in the first community with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number receiving power meets the second community of S criterions；
Second determining unit, if for the second community be present, each cell in the second community is supported The Reference Signal Received Power of the carrier wave of multicast service obtains the first Reference Signal Received Power plus corresponding difference, will The cell of the first Reference Signal Received Power maximum in the second community is as the cell after gravity treatment；
3rd determining unit, if for the second community, the main carrier of all adjacent cells of measuring terminals to be not present Reference Signal Received Power, using the maximum cell of the Reference Signal Received Power of the main carrier in all adjacent cells as gravity treatment Cell afterwards.
Further, the transmission power of adjacent cell transmission multicast service carrier wave is included when the cell reselection refers to factor It is all adjacent cells and considers to support terminal to preset multicast industry with the difference of the transmission power of its main carrier and the preset rules During the priority of the cell of business, second determining module includes：
First acquisition unit, for obtaining adjusting parameter corresponding to the cell reselection types of base station transmission, the cell weight Adjusting parameter corresponding to type is selected to include calculating the bias of Reference Signal Received Power and/or the bias and adjacent cell hair Send the corresponding relation of the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier；
4th determining unit, for determining the 3rd cell of support terminal pre-set business；
Second measuring unit, the reference letter for supporting the carrier wave of multicast service for measuring each cell in the 3rd cell Number receiving power；
Second judging unit, for judging in the 3rd cell with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number receiving power meets the 4th cell of S criterions；
First computing unit, for by the reference of the carrier wave of the support multicast service of each cell in the 4th cell Signal reception power is worth to the second Reference Signal Received Power plus corresponding biasing；
First choice unit, for selecting in all 4th cells in the second Reference Signal Received Power, the 3rd cell not Belong to the Reference Signal Received Power of the carrier wave of the support multicast service of the 4th cell and do not support the small of terminal pre-set business The maximum cell of the Reference Signal Received Power of main carrier is as the cell after gravity treatment in area.
Further, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave frequency and When the preset rules is support the cell of terminal pre-set business, second determining module includes：
5th determining unit, for determining the 5th cell of support terminal pre-set business；
3rd measuring unit, the reference letter for supporting the carrier wave of multicast service for measuring each cell in the 5th cell Number quality of reception；
3rd judging unit, for judging in the 5th cell with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number quality of reception meets the 6th cell of S criterions；
6th determining unit, if for the 6th cell be present, by the support multicast service in the 6th cell Carrier wave the maximum cell of Reference Signal Received Quality as the cell after gravity treatment；
7th determining unit, if for the 6th cell, the main carrier of all adjacent cells of measuring terminals to be not present Reference Signal Received Quality, using the maximum cell of Reference Signal Received Quality in all adjacent cells as the cell after gravity treatment.
Further, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave frequency and When the preset rules are all adjacent cells and consider to support the priority of the cell of the default multicast service of terminal, described second is true Cover half block includes：
Second acquisition unit, for obtaining adjusting parameter corresponding to the cell reselection types of base station transmission, the cell weight Adjusting parameter corresponding to type is selected to include calculating the adjustment amount and/or the adjustment amount and reference signal of Reference Signal Received Quality First predetermined number of the preferable adjacent cell of corresponding relation and terminal of the quality of reception；
4th measuring unit, the Reference Signal Received Quality for the main carrier of all adjacent cells of measuring terminals；
8th determining unit, for the Reference Signal Received Quality of the main carrier according to all adjacent cells, it is determined that full The seven cell of first predetermined number of sufficient S criterions；
5th measuring unit, the carrier wave that terminal presets multicast service is sent for measuring each cell in the seven cell Reference Signal Received Quality；
4th judging unit, for judging in the seven cell with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number quality of reception meets the 8th cell of S criterions；
9th determining unit, for when eight cell be present, the 8th cell to be supported to the load of multicast service The Reference Signal Received Quality of ripple adds the adjustment amount, obtains the first Reference Signal Received Quality；
Tenth determining unit, for by the first Reference Signal Received Quality in the 8th cell and seven cell A cell maximum in the Reference Signal Received Quality of the carrier wave of the support multicast service of the 8th cell is not belonging to, as terminal Cell after gravity treatment.
The beneficial effects of the invention are as follows：
Such scheme, cell reselection is issued with reference to factor to terminal by base station, terminal is according to the default rule of cell reselection Then and the cell reselection carries out the gravity treatment of cell with reference to factor, and the present invention supports the end of multicast service by providing under multicarrier The mode of the cell reselection at end, improves the efficiency of receiving multicast traffic after terminal housing estate gravity treatment, while reduces terminal reception The power consumption of multicast service.
Brief description of the drawings
Fig. 1 represents the schematic flow sheet of the residence reselecting of the embodiment of the present invention one；
Fig. 2 represents the module diagram of the base station of the embodiment of the present invention two；
Fig. 3 represents the structural representation of the base station of the embodiment of the present invention three；
Fig. 4 represents the schematic flow sheet of the residence reselecting of the embodiment of the present invention four；
Fig. 5 represents the module diagram of the terminal of the embodiment of the present invention five；
Fig. 6 represents the structural representation of the terminal of the embodiment of the present invention six.
Embodiment
It is right below in conjunction with the accompanying drawings and the specific embodiments to make the object, technical solutions and advantages of the present invention clearer The present invention is described in detail.
The present invention, in the case where terminal supports multicast service, can not realize asking for efficient cell reselection for existing Topic, there is provided a kind of residence reselecting, base station and terminal.
Embodiment one
As shown in figure 1, the embodiment of the present invention provides a kind of residence reselecting, applied to a base station side, including：
Step 11, the cell reselection types that network is currently supported are determined；
It should be noted that providing two kinds of cell reselection types in the embodiment of the present invention, one kind is to be connect based on reference signal Receive power (RSRQ) carry out cell reselection, another kind be based on Reference Signal Received Quality (RSRP) carry out cell reselection, and Synchronization, base station can only select a kind of cell reselection types.
Step 12, according to the cell reselection types, cell reselection is sent with reference to factor to terminal so that the terminal root The gravity treatment of cell is carried out with reference to factor according to the cell reselection.
It should be noted that after cell reselection types determination, the cell reselection that base station is sent also just determines with reference to factor , specifically, the step 12 when realizing, including：
Step 121, cell reselection is sent on single cell multicast control channel (SC-MCCH) with reference to factor to terminal, its In, single cell multicast service channel (SC-MTCH) that the cell reselection includes the serving cell of terminal with reference to factor matches somebody with somebody confidence The information of the adjacent cell of the terminal of the multicast service of breath and support serving cell, and the information of the adjacent cell includes：Cell mark Know the main carrier frequency information of information and cell, single cell multicast service channel configuration information of the serving cell includes：Clothes Transmission mark (G-RNTI), service corresponding to the multicast conversation information for cell of being engaged in, single cell multicast service channel of serving cell Whether schedule information, the adjacent cell of single cell multicast service channel of cell support the multicast service of serving cell support Configured information and adjacent cell send the presupposed information of multicast service carrier wave；Or
Step 122, cell reselection is sent in single cell multicast control channel with reference to factor to terminal, wherein, it is described small Area's gravity treatment includes with reference to factor：The multicast conversation information for the all-multicast business that the adjacent cell of terminal is supported and adjacent cell hair Send the presupposed information of multicast service carrier wave；Or
Step 123, broadcast the message by the first system and send cell reselection with reference to factor to terminal, wherein, the cell Gravity treatment includes with reference to factor：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported are sent The presupposed information of multicast service carrier wave.
Specifically, cell reselection types described in the embodiment of the present invention mainly determine the specific interior of above-mentioned presupposed information Hold, i.e., when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power, the presupposed information is neighbour Cell sends the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier；Herein it should be noted that working as When the transmission power and the transmission power of its main carrier of adjacent cell transmission multicast service carrier wave do not have difference, now show that transmission is more It is main carrier to broadcast traffic carrier, and in this case, base station can select not sending the difference of the adjacent cell.
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the presupposed information is Adjacent cell sends the frequency of multicast service carrier wave, it is necessary to which explanation, is base when adjacent cell sends multicast service on main carrier The frequency for not sending the multicast service carrier wave can be selected by standing.
It should also be noted that, because terminal is when carrying out cell reselection, weight can be carried out according to the preset rules of cell reselection Choosing, terminal is supported to preset the priority of the cell of multicast service, the base station when the preset rules of cell reselection include consideration Also need to broadcast the message by second system and send adjusting parameter corresponding to cell reselection types to the terminal.
It should be noted that the particular content of adjusting parameter corresponding to the cell reselection types is also according to the cell weight Select what type determined, when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power, the cell Adjusting parameter corresponding to reselection types includes calculating the bias and/or the bias and adjacent cell of Reference Signal Received Power Send the corresponding relation of the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier；
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the cell reselection class Adjusting parameter corresponding to type includes calculating the adjustment amount of Reference Signal Received Quality and/or the adjustment amount and reference signal reception First predetermined number of the preferable adjacent cell of corresponding relation and terminal of quality.
It should be noted that the base station is the base station corresponding to the serving cell of terminal, and the base station can be with other bases Stand communication, and then get the relevant information of the adjacent cell of terminal, and the relevant information of the adjacent cell is transferred to terminal.
The embodiment of the present invention, by carrying out transmission of the cell reselection with reference to factor according to cell reselection types so that terminal The gravity treatment of cell can be carried out with reference to factor according to the cell reselection, the precondition of cell reselection is provided with this, ensure that Terminal housing estate gravity treatment is smoothed out.
Embodiment two
As shown in Fig. 2 the embodiment of the present invention provides a kind of base station 20, including：
First determining module 21, the cell reselection types currently supported for determining network；
First sending module 22, for according to the cell reselection types, sending cell reselection with reference to factor to terminal, making Obtain the gravity treatment that the terminal carries out cell according to the cell reselection with reference to factor.
Specifically, first sending module 22 is used for：
Cell reselection is sent in single cell multicast control channel with reference to factor to terminal, wherein, the cell reselection ginseng Examining factor includes the single cell multicast service channel configuration information of serving cell and the multicast service of support serving cell of terminal Terminal adjacent cell information, and the information of the adjacent cell includes：The main carrier frequency of cell identity information and cell is believed Breath, single cell multicast service channel configuration information of the serving cell include：The multicast conversation information of serving cell, service are small Transmission mark corresponding to single cell multicast service channel in area, serving cell single cell multicast service channel schedule information, Whether the adjacent cell supports the configured information of the multicast service of serving cell support and adjacent cell to send multicast service carrier wave Presupposed information；Or
Cell reselection is sent in single cell multicast control channel with reference to factor to terminal, wherein, the cell reselection ginseng Examining factor includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast industry The presupposed information of business carrier wave；Or
Broadcast the message by the first system and send cell reselection with reference to factor to terminal, wherein, the cell reselection reference Factor includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast service The presupposed information of carrier wave.
Specifically, it is described pre- when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power If information is the difference that adjacent cell sends the transmission power of multicast service carrier wave and the transmission power of its main carrier；
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the presupposed information is Adjacent cell sends the frequency of multicast service carrier wave.
Alternatively, the base station 20, in addition to：
Second sending module, for according to the cell reselection types, being broadcast the message by second system and sending cell weight Adjusting parameter corresponding to type is selected to the terminal.
Specifically, it is described small when the cell reselection types are to carry out cell reselection based on Reference Signal Received Power Adjusting parameter corresponding to area's reselection types includes calculating the bias of Reference Signal Received Power and/or the bias and neighbour is small Area sends the corresponding relation of the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier；
When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the cell reselection class Adjusting parameter corresponding to type includes calculating the adjustment amount of Reference Signal Received Quality and/or the adjustment amount and reference signal reception First predetermined number of the preferable adjacent cell of corresponding relation and terminal of quality.
It should be noted that the embodiment of the base station is and the one-to-one base station of above-mentioned embodiment of the method, above-mentioned side All implementations can also reach identical technique effect suitable for the embodiment of the base station in method embodiment.
Embodiment three
As shown in figure 3, the embodiment of the present invention provides a kind of base station, including：
Processor 31；And the memory 33 being connected by EBI 32 with the processor 31, the memory 33 are used to store the processor 31 used program and data when performing operation, when processor 31 calls and performs described When the program and data that are stored in memory 33, following process is performed：
Determine the cell reselection types that network is currently supported；
According to the cell reselection types, cell reselection is sent with reference to factor to terminal by transceiver 34 so that described Terminal carries out the gravity treatment of cell according to the cell reselection with reference to factor.
It should be noted that the processor 31 is additionally operable to realize the function of any one other module of above-mentioned base station.
It should be noted that transceiver 34 is connected with EBI 32, for sending cell under the control of processor 31 Gravity treatment refers to factor.
It should be noted that in figure 3, bus architecture can include the bus and bridge of any number of interconnection, specifically by The various circuits for the memory that the one or more processors and memory 33 that processor 31 represents represent link together.Bus Framework can also link together various other circuits of such as ancillary equipment, voltage-stablizer and management circuit or the like, These are all it is known in the art, therefore, no longer it is described further herein.EBI provides interface.Transmitting-receiving Machine 34 can be multiple element, i.e., including transmitter and transceiver, there is provided for leading to over a transmission medium with various other devices The unit of letter.Processor 31 is responsible for bus architecture and common processing, and memory 33 can store processor 31 and perform Used data during operation.
It will be understood by those skilled in the art that realize above-described embodiment all or part of step can by hardware come Complete, the hardware of correlation can also be indicated to complete by computer program, the computer program includes performing above-mentioned side The instruction of some or all of step of method；And the computer program can be stored in a readable storage medium storing program for executing, storage medium It can be any type of storage medium.
Example IV
As shown in figure 4, the embodiment of the present invention provides a kind of residence reselecting, including：
Step 41, receive the cell reselection that base station is sent and refer to factor；
It should be noted that the cell reselection is that above-mentioned base station determines and sent according to cell reselection types with reference to factor , because the cell reselection is described in detail with reference to factor in the description of base station side, repeated no more in the present embodiment.
Step 42, the preset rules that terminal carries out cell reselection are obtained；
It should be noted that the preset rules, which sum up, is broadly divided into two kinds, a kind of is to support terminal pre-set business Cell, another kind is all adjacent cell and considers the priority of cell for supporting terminal to preset multicast service, and terminal is specifically used Which kind of rule can in advance be set by network side and notify terminal.
Step 43, factor is referred to according to the preset rules and the cell reselection, determines the cell after gravity treatment.
In this step, preset rules and cell weight that terminal uses when can be according to the progress cell reselection of network side notice Choosing carries out the gravity treatment of cell with reference to factor, and from embodiment one, terminal is in the cell reselection is got with reference to factor During the particular content of presupposed information, it can determine to carry out the cell reselection types of cell reselection.
Realization of the preset rules to step 43 according to different cell reselection types and cell reselection is entered separately below Row is described as follows.
First, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave transmission power and its lead The difference (showing cell reselection types to carry out cell reselection based on Reference Signal Received Power) of the transmission power of carrier wave and institute When stating preset rules to support the cell of terminal pre-set business, the step 43 includes：
Step 4301, it is determined that supporting the first community of terminal pre-set business；
It should be noted that the step is it is confirmed that support the set of cells of terminal multicast service interested.
Step 4302, measuring each cell in the first community supports the reference signal of the carrier wave of multicast service to receive work( Rate；
Step 4303, judge that the reference signal in the first community with the presence or absence of the carrier wave for supporting multicast service receives work( Rate meets the second community of S criterions；
It is accomplished that in this step, judges whether each cell in first community meets S criterions, S mentioned here Criterion refers to whether the Reference Signal Received Power for the carrier wave for supporting multicast service can guarantee that the normal transmission of business, also To say whether the Reference Signal Received Power of carrier wave for judging to support multicast service is more than or equal to predetermined power, be only more than or During equal to predetermined power, the normal transmission of business just can guarantee that.
Step 4304, if the second community be present, each cell in the second community is supported into multicast service The Reference Signal Received Power of carrier wave obtain the first Reference Signal Received Power plus corresponding difference, by described second The cell of the first Reference Signal Received Power maximum in cell is as the cell after gravity treatment；
Step 4305, if the second community is not present, the reference letter of the main carrier of all adjacent cells of measuring terminals Number receiving power, using the maximum cell of the Reference Signal Received Power of the main carrier in all adjacent cells as small after gravity treatment Area.
It should be noted that in the implementation, exist in the first community for supporting terminal pre-set business and meet S criterions Cell when, in the cell carry out re-selecting cell determination；And when the cell for meeting S criterions is not present in first community, The determination of re-selecting cell is carried out in all adjacent cells of terminal.
2nd, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave transmission power and its lead The difference (showing cell reselection types to carry out cell reselection based on Reference Signal Received Power) of the transmission power of carrier wave and institute When stating the priority for the cell that preset rules preset multicast service for all adjacent cells and consideration support terminal, the step 43 is wrapped Include：
Step 4306, adjusting parameter corresponding to the cell reselection types that base station is sent, the cell reselection types pair are obtained The adjusting parameter answered includes calculating the bias of Reference Signal Received Power and/or the bias and adjacent cell transmission multicast industry The corresponding relation of the difference of the transmission power of carrier wave of being engaged in and the transmission power of its main carrier；
It should be noted that terminal is supported to preset the preferential of the cell of multicast service when the preset rules include consideration Grade, now base station side can issue bias and/or the bias and adjacent cell hair including calculating Reference Signal Received Power Send the cell reselection types pair of the corresponding relation of the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier The adjusting parameter answered, now, terminal need to only receive adjusting parameter corresponding to the cell reselection types.
Step 4307, it is determined that supporting the 3rd cell of terminal pre-set business；
It should be noted that the step is it is confirmed that support the set of cells of terminal multicast service interested.
Step 4308, measuring each cell in the 3rd cell supports the reference signal of the carrier wave of multicast service to receive work( Rate；
Step 4309, judge that the reference signal in the 3rd cell with the presence or absence of the carrier wave for supporting multicast service receives work( Rate meets the 4th cell of S criterions；
It should be noted that the implementation type of the implementation of the step and above-mentioned steps 4303, no longer enters herein Row repeats.
Step 4310, the reference signal of the carrier wave of the support multicast service of each cell in the 4th cell is received Power is worth to the second Reference Signal Received Power plus corresponding biasing；
Step 4311, select to be not belonging to the 4th in the second Reference Signal Received Power, the 3rd cell in all 4th cells The Reference Signal Received Power of the carrier wave of the support multicast service of cell and do not support main load in the cell of terminal pre-set business The maximum cell of the Reference Signal Received Power of ripple is as the cell after gravity treatment.
It should be noted that in the implementation, exist in the 3rd cell for supporting terminal pre-set business and meet S criterions Cell when, the Reference Signal Received Power of the cell is added into corresponding bias, to increase the prioritizing selection of these cells It probability, then will be ranked up in all cells of terminal according to the size of Reference Signal Received Power, select reference signal to connect Prominent cell is received as the cell after terminal gravity treatment.
3rd, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave frequency (show cell Reselection types be based on Reference Signal Received Quality carry out cell reselection) and the preset rules be support terminal pre-set business Cell when, the step 43 includes：
Step 4312, it is determined that supporting the 5th cell of terminal pre-set business；
It should be noted that the step is it is confirmed that support the set of cells of terminal multicast service interested.
Step 4313, measuring each cell in the 5th cell supports the reference signal of the carrier wave of multicast service to receive matter Amount；
Step 4314, judge that the reference signal in the 5th cell with the presence or absence of the carrier wave for supporting multicast service receives matter Amount meets the 6th cell of S criterions；
It is accomplished that in this step, judges whether each cell in the 5th cell meets S criterions, S mentioned here Criterion refers to whether the Reference Signal Received Quality for the carrier wave for supporting multicast service can guarantee that the normal transmission of business, also To say whether the Reference Signal Received Quality of carrier wave for judging to support multicast service is more than or equal to preset quality, be only more than or During equal to preset quality, the normal transmission of business just can guarantee that.
Step 4315, if the 6th cell be present, by the carrier wave of the support multicast service in the 6th cell The maximum cell of Reference Signal Received Quality is as the cell after gravity treatment；
Step 4316, if the 6th cell is not present, the reference letter of the main carrier of all adjacent cells of measuring terminals Number quality of reception, using the maximum cell of Reference Signal Received Quality in all adjacent cells as the cell after gravity treatment.
It should be noted that in the implementation, exist in the 5th cell for supporting terminal pre-set business and meet S criterions Cell when, in the cell carry out re-selecting cell determination；And when the cell for meeting S criterions is not present in the 5th cell, The determination of re-selecting cell is carried out in all adjacent cells of terminal.
4th, when the cell reselection with reference to factor include adjacent cell transmission multicast service carrier wave frequency (show cell Reselection types be based on Reference Signal Received Quality carry out cell reselection) and the preset rules be all adjacent cells and consideration When supporting that terminal presets the priority of the cell of multicast service, the step 43 includes：
Step 4317, adjusting parameter corresponding to the cell reselection types that base station is sent, the cell reselection types pair are obtained The adjusting parameter answered includes calculating the adjustment amount and/or the adjustment amount and Reference Signal Received Quality of Reference Signal Received Quality Corresponding relation and the preferable adjacent cell of terminal the first predetermined number；
It should be noted that terminal is supported to preset the preferential of the cell of multicast service when the preset rules include consideration Grade, now base station side can issue the adjustment amount and/or the adjustment amount and reference signal for including calculating Reference Signal Received Quality Adjustment ginseng corresponding to the cell reselection types of first predetermined number of the preferable adjacent cell of corresponding relation and terminal of the quality of reception Number, now, terminal need to only receive adjusting parameter corresponding to the cell reselection types.
Step 4318, the Reference Signal Received Quality of the main carrier of all adjacent cells of measuring terminals；
Step 4319, according to the Reference Signal Received Quality of the main carrier of all adjacent cells, it is determined that meeting S criterions The seven cell of first predetermined number；
It should be noted that when carrying out this step, terminal may determine that the number for the seven cell for meeting S criterions exceedes These seven cells, now should be ranked up by the first predetermined number according to Reference Signal Received Quality, prioritizing selection reference The larger seven cell of signal receiving quality.
Step 4320, measure each cell in the seven cell and send the reference letter that terminal presets the carrier wave of multicast service Number quality of reception；
Step 4321, judge that the reference signal in the seven cell with the presence or absence of the carrier wave for supporting multicast service receives matter Amount meets the 8th cell of S criterions；
Step 4322, when eight cell be present, the 8th cell is supported to the reference of the carrier wave of multicast service Signal receiving quality adds the adjustment amount, obtains the first Reference Signal Received Quality；
Step 4323, will be not belonging in the first Reference Signal Received Quality in the 8th cell and seven cell A maximum cell in the Reference Signal Received Quality of the carrier wave of the support multicast service of eight cells, after terminal gravity treatment Cell.
It should be noted that in the implementation, exist in the seven cell of the first predetermined number of S criterions is met full During the cell of sufficient S criterions, the Reference Signal Received Power of the cell is added into corresponding adjustment amount, to increase the excellent of these cells First select probability, then all seven cells are ranked up according to the size of Reference Signal Received Quality, selection is with reference to letter The maximum cell of number quality of reception is the cell after terminal gravity treatment.
Separately below in actual applications, to applied to the residence reselecting of base station and end side be illustrated as Under.
1st, terminal receives multicast service interested in serving cell and adjacent cell also has terminal multicast industry interested Cell reselection during business based on RSRP (terminal is notified by the SC-MCCH on the base station of serving cell)
Step 1：Terminal is resident in serving cell, in Idle state, receives the multicast system of the base station broadcast of serving cell Letter on message, SC-MCCH, SC-MCCH update instruction and SC-MTCH corresponding to terminal multicast service interested, SC-MCCH Breath includes but is not limited to serving cell SC-MTCH configured lists, supports the adjacent cell list of multicast service, wherein supporting multicast industry Including but not limited to the Physical Cell Identifier and main carrier frequency information of adjacent cell, serving cell SC- in the adjacent cell list of business In MTCH configured lists including but not limited to G-RNTI corresponding to the multicast conversation information of serving cell, serving cell SC-MTCH, Whether serving cell SC-MTCH schedule informations, adjacent cell support the multicast configured information and adjacent cell to send multicast service load The difference information of the transmission power of ripple and the transmission power of adjacent cell main carrier, when adjacent cell sends the hair of the multicast service carrier wave When not having difference of the transmission power of power and main carrier is penetrated, does not send above-mentioned difference information.
Step 2：When terminal needs cell reselection, terminal measures the RSRP of periphery adjacent cell main carrier；When adjacent cell is wide Broadcast terminal multicast service interested and send the carrier wave of multicast service and when main carrier has difference power, terminal is carrying out cell RSRP is calculated according to current mechanism in gravity treatment sequence, wherein the RSRP measured subtracts the hair that adjacent cell sends the multicast service carrier wave Penetrate the difference of the transmission power of power and main carrier, optimal cell after terminal selected and sorted.
2nd, terminal does not have multicast service interested in serving cell and adjacent cell has terminal multicast service interested When the cell reselection based on RSRP (terminal is notified by SC-MCCH on the base station of serving cell)
Step 1：Terminal is resident in serving cell, in Idle state, receives the multicast system of the base station broadcast of serving cell Message, SC-MCCH and SC-MCCH update instructions, but without terminal multicast service interested, base station is sent on SC-MCCH The multicast conversation information and adjacent cell of adjacent cell send the transmission power of the multicast service carrier wave and the transmitting of adjacent cell main carrier The difference information of power, when adjacent cell sends the not poor of the transmission power of the multicast service carrier wave and the transmission power of main carrier During value, above-mentioned difference information is not sent.
Step 2：When terminal needs cell reselection, terminal measures the RSRP of periphery adjacent cell main carrier；When adjacent cell is wide Broadcast terminal multicast service interested and send the carrier wave of multicast service and when main carrier has difference power, terminal is carrying out cell RSRP is calculated according to current mechanism in gravity treatment sequence, wherein the RSRP measured subtracts the hair that adjacent cell sends the multicast service carrier wave Penetrate the difference of the transmission power of power and main carrier, optimal cell after terminal selected and sorted.
3rd, the cell reselection based on RSRP is (by the base station of serving cell when adjacent cell has terminal multicast service interested The system message notice terminal of broadcast)
Step 1：Terminal is resident in serving cell, in Idle state, receives the system message of the base station broadcast of serving cell, Multicast conversation information and adjacent cell in the system message including but not limited to adjacent cell send the transmitting of the multicast service carrier wave The difference information of the transmission power of power and adjacent cell main carrier, when adjacent cell send the transmission power of the multicast service carrier wave with When not having difference of the transmission power of main carrier, above-mentioned difference information is not sent.
Step 2：When terminal needs cell reselection, terminal measures the RSRP of periphery adjacent cell main carrier；When adjacent cell is wide Broadcast terminal multicast service interested and sending the carrier wave of multicast service and main carrier has difference power (to send multicast service Difference be present in carrier wave and main carrier) when, terminal calculates RSRP in cell reselection sequence is carried out according to current mechanism, wherein measuring The adjacent cells that subtract in step 1 of RSRP send the difference of the transmission power of the multicast service carrier wave and the transmission power of main carrier It is worth, optimal cell after terminal selected and sorted.
4th, including the cell of all adjacent cells, support terminal multicast service interested when the scope of cell reselection needs to consider Cell reselection based on RSRP when the carrier wave and main carrier of priority and adjacent cell transmission multicast service have difference power
Step 1：Terminal is resident in serving cell, in Idle state, receives the system message of the base station broadcast of serving cell, Sent in the system message including but not limited to adjustment amount of the terminal for calculating the biasing in RSRP, the adjustment amount and adjacent cell The carrier wave of multicast service and the difference power of main carrier have mapping relations one by one；When adjacent cell sends the transmitting of the multicast service carrier wave When not having difference of the transmission power of power and main carrier, does not send above-mentioned difference information.Terminal and network side are according to embodiment 1 Into embodiment 3, any scheme receives and sent adjacent cell and sends multicast conversation information and send the hair of the multicast service carrier wave Penetrate the difference of the transmission power of power and main carrier.
Step 2：When terminal needs the carrier wave of cell reselection and adjacent cell transmission multicast service and main carrier to have difference power When, the scope of terminal gravity treatment includes all adjacent cells, and terminal need to consider the excellent of the cell for the multicast service for supporting terminal interested First level parameter, wherein the priority parameters for supporting the cell of terminal multicast service interested can be inclined in calculating RSRP Put, terminal sends the carrier wave and main carrier of multicast service based on adjacent cell when calculating RSRP in carrying out cell reselection sequence Difference power adjusts the biasing, and method of adjustment is to subtract the adjustment amount of system broadcasts in step 1, optimal small after terminal selected and sorted Area.
5th, the cell reselection based on RSRQ (notifies the more of terminal adjacent cell by the SC-MCCH on the base station of serving cell Broadcast session information and adjacent cell sends the frequency of the multicast service carrier wave)
Step 1：Terminal is resident in serving cell, in Idle state, receives the multicast system of the base station broadcast of serving cell Letter on message, SC-MCCH, SC-MCCH update instruction and SC-MTCH corresponding to terminal multicast service interested, SC-MCCH Breath includes but is not limited to serving cell SC-MTCH configured lists, supports the adjacent cell list of multicast service, wherein supporting multicast industry Including but not limited to the Physical Cell Identifier and main carrier frequency information of adjacent cell, serving cell SC- in the adjacent cell list of business In MTCH configured lists including but not limited to G-RNTI corresponding to the multicast conversation information of serving cell, serving cell SC-MTCH, Whether serving cell SC-MTCH schedule informations, adjacent cell support the multicast configured information and adjacent cell to send multicast service load The frequency of ripple；When adjacent cell sends multicast service in adjacent cell main carrier, above-mentioned carrier wave frequency information is not sent.
Step 2：When the scope of cell reselection prioritizing selection is the set of cells for the multicast service for supporting terminal interested, Terminal measurement adjacent cell sends the RSRQ in the carrier frequency of terminal business interested, is selected after being ranked up optimal small Area；When the cell for not meeting reselection requirement in the set of cells for supporting terminal multicast service interested, terminal measurement are adjacent small The RSRQ of area's main carrier carries out cell reselection.
6th, the cell reselection based on RSRQ (notifies the more of terminal adjacent cell by the SC-MCCH on the base station of serving cell Broadcast session information and adjacent cell sends the frequency of the multicast service carrier wave)
Step 1：Terminal is resident in serving cell, in Idle state, receives the multicast system of the base station broadcast of serving cell Message, SC-MCCH and SC-MCCH update instructions, base station send the multicast conversation information and adjacent cell of adjacent cell on SC-MCCH Send the frequency of the multicast service carrier wave；When adjacent cell sends multicast service in adjacent cell main carrier, above-mentioned carrier wave is not sent Frequency information.
Step 2：When the scope of cell reselection prioritizing selection is the set of cells for the multicast service for supporting terminal interested, Terminal measurement adjacent cell sends the RSRQ in the carrier frequency of terminal business interested, is selected after being ranked up optimal small Area；When the cell for not meeting reselection requirement in the set of cells for supporting terminal multicast service interested, terminal measurement are adjacent small The RSRQ of area's main carrier carries out cell reselection.
7th, the cell reselection based on RSRQ (notifies terminal adjacent cell by the system message of the base station broadcast of serving cell Multicast conversation information and adjacent cell send the frequency of the multicast service carrier wave)
Step 1：Terminal is resident in serving cell, in Idle state, receives the system message of the base station broadcast of serving cell, Multicast conversation information and adjacent cell in system message including but not limited to adjacent cell send the frequency of the multicast service carrier wave；When Adjacent cell does not send above-mentioned carrier wave frequency information when adjacent cell main carrier sends multicast service.
Step 2：When the scope of cell reselection prioritizing selection is the set of cells for the multicast service for supporting terminal interested, Terminal measurement adjacent cell sends the RSRQ in the carrier frequency of terminal business interested, is selected after being ranked up optimal small Area；When the cell for not meeting reselection requirement in the set of cells for supporting terminal multicast service interested, terminal measurement are adjacent small The RSRQ of area's main carrier carries out cell reselection
8th, including the cell of all adjacent cells, support terminal multicast service interested when the scope of cell reselection needs to consider Cell reselection based on RSRQ during priority
Step 1：Terminal is resident in serving cell, in Idle state, receives the system message of the base station broadcast of serving cell, Including but not limited to adjustment amount and preferred variable number N, the adjustment amount and neighbour of the terminal for calculating RSRQ in the system message The RSRP that cell is sent on the carrier wave of multicast service has mapping relations one by one, and preferable cell number N is that subsequent cell gravity treatment is surveyed Most cell numbers of amount are nonnegative integer；When adjacent cell is all sending multicast service on main carrier, do not send above-mentioned preferred Cell number N.Any scheme into embodiment 7 receives and sent adjacent cell multicast meeting according to embodiment 5 for terminal and network side Words information and adjacent cell send the frequency of the multicast service carrier wave.
Step 2：When terminal needs cell reselection and has adjacent cell sending multicast service in secondary carrier, terminal gravity treatment Scope include all adjacent cells, terminal measures the RSRQ of all adjacent cell main carriers, in the case where meeting reselection conditions (S criterions) Selection at most N number of cell in cell, measure the RSRQ that above-mentioned cell sends the carrier wave of terminal multicast service interested；When above-mentioned When the carrier wave that cell sends terminal multicast service interested meets S criterions, added when R is calculated in above-mentioned N number of ranking cells What is received in step 1 is used to calculate RSRQ adjustment amount, optimal cell after terminal selected and sorted.
It should be noted that the embodiments of the invention provide support that the NB-IoT terminals of multicast service are small under a kind of multicarrier The method of area's gravity treatment, improve the efficiency of receiving multicast traffic after terminal housing estate gravity treatment and reduce terminal receiving multicast traffic Power consumption, can be that the NB-IoT terminals of the support multicast service of magnanimity preferably provide service.
Embodiment five
As shown in figure 5, the embodiment of the present invention provides a kind of terminal 50, including：
Receiving module 51, the cell reselection for receiving base station transmission refer to factor；
Acquisition module 52, the preset rules of cell reselection are carried out for obtaining terminal；
Second determining module 53, for referring to factor according to the preset rules and the cell reselection, after determining gravity treatment Cell.
Alternatively, when the cell reselection with reference to factor include adjacent cell send multicast service carrier wave transmission power and The difference of the transmission power of its main carrier and the preset rules are that described second is true when supporting the cell of terminal pre-set business Cover half block 53 includes：
First determining unit, for determining the first community of support terminal pre-set business；
First measuring unit, the reference letter for supporting the carrier wave of multicast service for measuring each cell in the first community Number receiving power；
First judging unit, for judging in the first community with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number receiving power meets the second community of S criterions；
Second determining unit, if for the second community be present, each cell in the second community is supported The Reference Signal Received Power of the carrier wave of multicast service obtains the first Reference Signal Received Power plus corresponding difference, will The cell of the first Reference Signal Received Power maximum in the second community is as the cell after gravity treatment；
3rd determining unit, if for the second community, the main carrier of all adjacent cells of measuring terminals to be not present Reference Signal Received Power, using the maximum cell of the Reference Signal Received Power of the main carrier in all adjacent cells as gravity treatment Cell afterwards.
Alternatively, when the cell reselection with reference to factor include adjacent cell send multicast service carrier wave transmission power and The difference of the transmission power of its main carrier and the preset rules are all adjacent cells and consider to support terminal to preset multicast service Cell priority when, second determining module 53 includes：
First acquisition unit, for obtaining adjusting parameter corresponding to the cell reselection types of base station transmission, the cell weight Adjusting parameter corresponding to type is selected to include calculating the bias of Reference Signal Received Power and/or the bias and adjacent cell hair Send the corresponding relation of the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier；
4th determining unit, for determining the 3rd cell of support terminal pre-set business；
Second measuring unit, the reference letter for supporting the carrier wave of multicast service for measuring each cell in the 3rd cell Number receiving power；
Second judging unit, for judging in the 3rd cell with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number receiving power meets the 4th cell of S criterions；
First computing unit, for by the reference of the carrier wave of the support multicast service of each cell in the 4th cell Signal reception power is worth to the second Reference Signal Received Power plus corresponding biasing；
First choice unit, for selecting in all 4th cells in the second Reference Signal Received Power, the 3rd cell not Belong to the Reference Signal Received Power of the carrier wave of the support multicast service of the 4th cell and do not support the small of terminal pre-set business The maximum cell of the Reference Signal Received Power of main carrier is as the cell after gravity treatment in area.
Alternatively, frequency and the institute of adjacent cell transmission multicast service carrier wave are included when the cell reselection refers to factor When stating preset rules to support the cell of terminal pre-set business, second determining module 53 includes：
5th determining unit, for determining the 5th cell of support terminal pre-set business；
3rd measuring unit, the reference letter for supporting the carrier wave of multicast service for measuring each cell in the 5th cell Number quality of reception；
3rd judging unit, for judging in the 5th cell with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number quality of reception meets the 6th cell of S criterions；
6th determining unit, if for the 6th cell be present, by the support multicast service in the 6th cell Carrier wave the maximum cell of Reference Signal Received Quality as the cell after gravity treatment；
7th determining unit, if for the 6th cell, the main carrier of all adjacent cells of measuring terminals to be not present Reference Signal Received Quality, using the maximum cell of Reference Signal Received Quality in all adjacent cells as the cell after gravity treatment.
Alternatively, frequency and the institute of adjacent cell transmission multicast service carrier wave are included when the cell reselection refers to factor When stating the priority for the cell that preset rules preset multicast service for all adjacent cells and consideration support terminal, described second determines Module 53 includes：
Second acquisition unit, for obtaining adjusting parameter corresponding to the cell reselection types of base station transmission, the cell weight Adjusting parameter corresponding to type is selected to include calculating the adjustment amount and/or the adjustment amount and reference signal of Reference Signal Received Quality First predetermined number of the preferable adjacent cell of corresponding relation and terminal of the quality of reception；
4th measuring unit, the Reference Signal Received Quality for the main carrier of all adjacent cells of measuring terminals；
8th determining unit, for the Reference Signal Received Quality of the main carrier according to all adjacent cells, it is determined that full The seven cell of first predetermined number of sufficient S criterions；
5th measuring unit, the carrier wave that terminal presets multicast service is sent for measuring each cell in the seven cell Reference Signal Received Quality；
4th judging unit, for judging in the seven cell with the presence or absence of the reference letter for the carrier wave for supporting multicast service Number quality of reception meets the 8th cell of S criterions；
9th determining unit, for when eight cell be present, the 8th cell to be supported to the load of multicast service The Reference Signal Received Quality of ripple adds the adjustment amount, obtains the first Reference Signal Received Quality；
Tenth determining unit, for by the first Reference Signal Received Quality in the 8th cell and seven cell A cell maximum in the Reference Signal Received Quality of the carrier wave of the support multicast service of the 8th cell is not belonging to, as terminal Cell after gravity treatment.
It should be noted that the embodiment of the terminal is and the one-to-one terminal of above-mentioned embodiment of the method, above-mentioned side All implementations can also reach identical technique effect suitable for the embodiment of the terminal in method embodiment.
Embodiment six
As shown in fig. 6, the embodiment of the present invention provides a kind of terminal, including：
Processor 61；And the memory 63 being connected by EBI 62 with the processor 61, the memory 63 are used to store the processor 61 used program and data when performing operation, when processor 61 calls and performs described When the program and data that are stored in memory 63, following process is performed：
The cell reselection that base station transmission is received by transceiver 64 refers to factor；
Obtain the preset rules that terminal carries out cell reselection；
Factor is referred to according to the preset rules and the cell reselection, determines the cell after gravity treatment.
Wherein, transceiver 64 is connected with EBI 62, under the control of processor 61 reception area gravity treatment refer to because Number.
It should be noted that in figure 6, bus architecture can include the bus and bridge of any number of interconnection, specifically by The various circuits for the memory that the one or more processors and memory 63 that processor 61 represents represent link together.Bus Framework can also link together various other circuits of such as ancillary equipment, voltage-stablizer and management circuit or the like, These are all it is known in the art, therefore, no longer it is described further herein.EBI provides interface.Transmitting-receiving Machine 64 can be multiple element, i.e., including transmitter and transceiver, there is provided for leading to over a transmission medium with various other devices The unit of letter.For different terminals, user interface 65, which be can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..Processor 61 be responsible for bus architecture and Common processing, memory 63 can store the used data when performing operation of processor 61.
It will be understood by those skilled in the art that realize above-described embodiment all or part of step can by hardware come Complete, the hardware of correlation can also be indicated to complete by computer program, the computer program includes performing above-mentioned side The instruction of some or all of step of method；And the computer program can be stored in a readable storage medium storing program for executing, storage medium It can be any type of storage medium.
Above-described is the preferred embodiment of the present invention, it should be pointed out that is come for the ordinary person of the art Say, some improvements and modifications can also be made under the premise of principle of the present invention is not departed from, and these improvements and modifications also exist In protection scope of the present invention.

Claims (20)

  1. A kind of 1. residence reselecting, it is characterised in that including：
    Determine the cell reselection types that network is currently supported；
    According to the cell reselection types, cell reselection is sent with reference to factor to terminal so that the terminal is according to the cell Gravity treatment carries out the gravity treatment of cell with reference to factor.
  2. 2. residence reselecting according to claim 1, it is characterised in that the transmission cell reselection is with reference to factor to end The step of end, includes：
    In single cell multicast control channel send cell reselection with reference to factor to terminal, wherein, the cell reselection refer to because Number includes single cell multicast service channel configuration information of the serving cell of terminal and supports the end of the multicast service of serving cell The information of the adjacent cell at end, and the information of the adjacent cell includes：The main carrier frequency information of cell identity information and cell, institute Stating single cell multicast service channel configuration information of serving cell includes：The multicast conversation information of serving cell, serving cell Transmission mark corresponding to single cell multicast service channel, serving cell single cell multicast service channel schedule information, described Whether adjacent cell supports the configured information of the multicast service of serving cell support and adjacent cell to send the default of multicast service carrier wave Information；Or
    In single cell multicast control channel send cell reselection with reference to factor to terminal, wherein, the cell reselection refer to because Number includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast service and carried The presupposed information of ripple；Or
    Broadcast the message by the first system and send cell reselection with reference to factor to terminal, wherein, the cell reselection refers to factor Including：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast service carrier wave Presupposed information.
  3. 3. residence reselecting according to claim 2, it is characterised in that when the cell reselection types are based on reference When signal reception power carries out cell reselection, the presupposed information is the transmission power of adjacent cell transmission multicast service carrier wave and its The difference of the transmission power of main carrier；
    When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the presupposed information is adjacent small Area sends the frequency of multicast service carrier wave.
  4. 4. residence reselecting according to claim 1, it is characterised in that also include：
    According to the cell reselection types, broadcast the message by second system send adjusting parameter corresponding to cell reselection types to The terminal.
  5. 5. residence reselecting according to claim 4, it is characterised in that when the cell reselection types are based on reference When signal reception power carries out cell reselection, adjusting parameter corresponding to the cell reselection types includes calculating reference signal reception The bias of power and/or the bias send transmission power and the transmitting of its main carrier of multicast service carrier wave with adjacent cell The corresponding relation of the difference of power；
    When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the cell reselection types pair The adjusting parameter answered includes calculating the adjustment amount and/or the adjustment amount and Reference Signal Received Quality of Reference Signal Received Quality Corresponding relation and the preferable adjacent cell of terminal the first predetermined number.
  6. A kind of 6. base station, it is characterised in that including：
    First determining module, the cell reselection types currently supported for determining network；
    First sending module, for according to the cell reselection types, sending cell reselection with reference to factor to terminal so that described Terminal carries out the gravity treatment of cell according to the cell reselection with reference to factor.
  7. 7. base station according to claim 6, it is characterised in that first sending module is used for：
    In single cell multicast control channel send cell reselection with reference to factor to terminal, wherein, the cell reselection refer to because Number includes single cell multicast service channel configuration information of the serving cell of terminal and supports the end of the multicast service of serving cell The information of the adjacent cell at end, and the information of the adjacent cell includes：The main carrier frequency information of cell identity information and cell, institute Stating single cell multicast service channel configuration information of serving cell includes：The multicast conversation information of serving cell, serving cell Transmission mark corresponding to single cell multicast service channel, serving cell single cell multicast service channel schedule information, described Whether adjacent cell supports the configured information of the multicast service of serving cell support and adjacent cell to send the default of multicast service carrier wave Information；Or
    In single cell multicast control channel send cell reselection with reference to factor to terminal, wherein, the cell reselection refer to because Number includes：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast service and carried The presupposed information of ripple；Or
    Broadcast the message by the first system and send cell reselection with reference to factor to terminal, wherein, the cell reselection refers to factor Including：The multicast conversation information and the adjacent cell for the all-multicast business that the adjacent cell of terminal is supported send multicast service carrier wave Presupposed information.
  8. 8. base station according to claim 7, it is characterised in that when the cell reselection types are to be received based on reference signal When power carries out cell reselection, the presupposed information is the transmission power and its main carrier that adjacent cell sends multicast service carrier wave The difference of transmission power；
    When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the presupposed information is adjacent small Area sends the frequency of multicast service carrier wave.
  9. 9. base station according to claim 6, it is characterised in that also include：
    Second sending module, for according to the cell reselection types, being broadcast the message by second system and sending cell reselection class Adjusting parameter corresponding to type gives the terminal.
  10. 10. base station according to claim 9, it is characterised in that when the cell reselection types are to be connect based on reference signal When receiving power progress cell reselection, adjusting parameter corresponding to the cell reselection types includes calculating Reference Signal Received Power The transmission power and the transmission power of its main carrier of bias and/or the bias and adjacent cell transmission multicast service carrier wave The corresponding relation of difference；
    When the cell reselection types are to carry out cell reselection based on Reference Signal Received Quality, the cell reselection types pair The adjusting parameter answered includes calculating the adjustment amount and/or the adjustment amount and Reference Signal Received Quality of Reference Signal Received Quality Corresponding relation and the preferable adjacent cell of terminal the first predetermined number.
  11. A kind of 11. residence reselecting, it is characterised in that including：
    Receive the cell reselection that base station is sent and refer to factor；
    Obtain the preset rules that terminal carries out cell reselection；
    Factor is referred to according to the preset rules and the cell reselection, determines the cell after gravity treatment.
  12. 12. residence reselecting according to claim 11, it is characterised in that wrapped when the cell reselection is referred in factor Include adjacent cell send multicast service carrier wave transmission power be with the difference of the transmission power of its main carrier and the preset rules It is described to refer to factor according to the preset rules and the cell reselection when supporting the cell of terminal pre-set business, determine gravity treatment The step of rear cell, includes：
    It is determined that support the first community of terminal pre-set business；
    Measure the Reference Signal Received Power that each cell in the first community supports the carrier wave of multicast service；
    Judge to meet S criterions with the presence or absence of the Reference Signal Received Power for the carrier wave for supporting multicast service in the first community Second community；
    If the second community be present, each cell in the second community is supported the reference of the carrier wave of multicast service believe Number receiving power obtains the first Reference Signal Received Power plus corresponding difference, by the first ginseng in the second community The maximum cell of signal reception power is examined as the cell after gravity treatment；
    If the second community is not present, the Reference Signal Received Power of the main carrier of all adjacent cells of measuring terminals will The maximum cell of the Reference Signal Received Power of main carrier in all adjacent cells is as the cell after gravity treatment.
  13. 13. residence reselecting according to claim 11, it is characterised in that wrapped when the cell reselection is referred in factor Include adjacent cell send multicast service carrier wave transmission power be with the difference of the transmission power of its main carrier and the preset rules It is described according to the preset rules and institute when all adjacent cells and consideration support that terminal presets the priority of the cell of multicast service Stating the step of cell reselection refers to factor, determines the cell after gravity treatment includes：
    Obtain adjusting parameter corresponding to the cell reselection types that base station is sent, adjusting parameter bag corresponding to the cell reselection types Include the transmitting work(that the bias for calculating Reference Signal Received Power and/or the bias send multicast service carrier wave with adjacent cell The corresponding relation of rate and the difference of the transmission power of its main carrier；
    It is determined that support the 3rd cell of terminal pre-set business；
    Measure the Reference Signal Received Power that each cell in the 3rd cell supports the carrier wave of multicast service；
    Judge to meet S criterions with the presence or absence of the Reference Signal Received Power for the carrier wave for supporting multicast service in the 3rd cell 4th cell；
    By the Reference Signal Received Power of the carrier wave of the support multicast service of each cell in the 4th cell add and its Corresponding biasing is worth to the second Reference Signal Received Power；
    Select to be not belonging to the support multicast of the 4th cell in the second Reference Signal Received Power, the 3rd cell in all 4th cells The Reference Signal Received Power of the carrier wave of business and the reference signal of main carrier in the cell of terminal pre-set business is not supported to connect Prominent cell is received as the cell after gravity treatment.
  14. 14. residence reselecting according to claim 11, it is characterised in that wrapped when the cell reselection is referred in factor Include adjacent cell send multicast service carrier wave frequency and the preset rules for support terminal pre-set business cell when, it is described The step of referring to factor according to the preset rules and the cell reselection, determining the cell after gravity treatment includes：
    It is determined that support the 5th cell of terminal pre-set business；
    Measure the Reference Signal Received Quality that each cell in the 5th cell supports the carrier wave of multicast service；
    Judge to meet S criterions with the presence or absence of the Reference Signal Received Quality for the carrier wave for supporting multicast service in the 5th cell 6th cell；
    If the 6th cell be present, the reference signal of the carrier wave of the support multicast service in the 6th cell is received into matter Maximum cell is measured as the cell after gravity treatment；
    If the 6th cell is not present, the Reference Signal Received Quality of the main carrier of all adjacent cells of measuring terminals will The maximum cell of Reference Signal Received Quality is as the cell after gravity treatment in all adjacent cells.
  15. 15. residence reselecting according to claim 11, it is characterised in that wrapped when the cell reselection is referred in factor It is that all adjacent cells and consideration support that terminal is default more to include adjacent cell and send the frequency of multicast service carrier wave and the preset rules It is described to refer to factor according to the preset rules and the cell reselection when broadcasting the priority of the cell of business, after determining gravity treatment Cell the step of include：
    Obtain adjusting parameter corresponding to the cell reselection types that base station is sent, adjusting parameter bag corresponding to the cell reselection types Include the corresponding relation and end of the adjustment amount and/or the adjustment amount and Reference Signal Received Quality that calculate Reference Signal Received Quality Hold the first predetermined number of preferable adjacent cell；
    The Reference Signal Received Quality of the main carrier of all adjacent cells of measuring terminals；
    According to the Reference Signal Received Quality of the main carrier of all adjacent cells, it is determined that meeting the first predetermined number of S criterions Seven cell；
    Measure each cell in the seven cell and send the Reference Signal Received Quality that terminal presets the carrier wave of multicast service；
    Judge to meet S criterions with the presence or absence of the Reference Signal Received Quality for the carrier wave for supporting multicast service in the seven cell 8th cell；
    When eight cell be present, the 8th cell is supported the Reference Signal Received Quality of the carrier wave of multicast service add The upper adjustment amount, obtains the first Reference Signal Received Quality；
    The support of the 8th cell will be not belonging in the first Reference Signal Received Quality in 8th cell and seven cell A maximum cell in the Reference Signal Received Quality of the carrier wave of multicast service, as the cell after terminal gravity treatment.
  16. A kind of 16. terminal, it is characterised in that including：
    Receiving module, the cell reselection for receiving base station transmission refer to factor；
    Acquisition module, the preset rules of cell reselection are carried out for obtaining terminal；
    Second determining module, for referring to factor according to the preset rules and the cell reselection, determine the cell after gravity treatment.
  17. 17. terminal according to claim 16, it is characterised in that when the cell reselection includes adjacent cell with reference to factor Send the difference of the transmission power of multicast service carrier wave and the transmission power of its main carrier and the preset rules are support terminal During the cell of pre-set business, second determining module includes：
    First determining unit, for determining the first community of support terminal pre-set business；
    First measuring unit, the reference signal of the carrier wave of multicast service is supported to connect for measuring each cell in the first community Receive power；
    First judging unit, for judging to connect with the presence or absence of the reference signal for the carrier wave for supporting multicast service in the first community Receive the second community that power meets S criterions；
    Second determining unit, if for the second community be present, each cell in the second community is supported into multicast The Reference Signal Received Power of the carrier wave of business obtains the first Reference Signal Received Power plus corresponding difference, by described in The cell of the first Reference Signal Received Power maximum in second community is as the cell after gravity treatment；
    3rd determining unit, if for the second community, the ginseng of the main carrier of all adjacent cells of measuring terminals to be not present Examine signal reception power, using the maximum cell of the Reference Signal Received Power of the main carrier in all adjacent cells as gravity treatment after Cell.
  18. 18. terminal according to claim 16, it is characterised in that when the cell reselection includes adjacent cell with reference to factor The transmission power and the difference of the transmission power of its main carrier and the preset rules for sending multicast service carrier wave are that all neighbours are small When area and consideration support that terminal presets the priority of the cell of multicast service, second determining module includes：
    First acquisition unit, for obtaining adjusting parameter corresponding to the cell reselection types of base station transmission, the cell reselection class Adjusting parameter corresponding to type includes calculating the bias of Reference Signal Received Power and/or the bias and adjacent cell transmission is more Broadcast the corresponding relation of the difference of the transmission power of traffic carrier and the transmission power of its main carrier；
    4th determining unit, for determining the 3rd cell of support terminal pre-set business；
    Second measuring unit, the reference signal of the carrier wave of multicast service is supported to connect for measuring each cell in the 3rd cell Receive power；
    Second judging unit, for judging to connect with the presence or absence of the reference signal for the carrier wave for supporting multicast service in the 3rd cell Receive the 4th cell that power meets S criterions；
    First computing unit, for by the reference signal of the carrier wave of the support multicast service of each cell in the 4th cell Receiving power is worth to the second Reference Signal Received Power plus corresponding biasing；
    First choice unit, for selecting to be not belonging in the second Reference Signal Received Power, the 3rd cell in all 4th cells The Reference Signal Received Power of the carrier wave of the support multicast service of 4th cell and do not support in the cell of terminal pre-set business The maximum cell of the Reference Signal Received Power of main carrier is as the cell after gravity treatment.
  19. 19. terminal according to claim 16, it is characterised in that when the cell reselection includes adjacent cell with reference to factor It is when supporting the cell of terminal pre-set business to send the frequency of multicast service carrier wave and the preset rules, and described second determines Module includes：
    5th determining unit, for determining the 5th cell of support terminal pre-set business；
    3rd measuring unit, the reference signal of the carrier wave of multicast service is supported to connect for measuring each cell in the 5th cell Receive quality；
    3rd judging unit, for judging to connect with the presence or absence of the reference signal for the carrier wave for supporting multicast service in the 5th cell Receive the 6th cell that quality meets S criterions；
    6th determining unit, if for the 6th cell be present, by the load of the support multicast service in the 6th cell The maximum cell of the Reference Signal Received Quality of ripple is as the cell after gravity treatment；
    7th determining unit, if for the 6th cell, the ginseng of the main carrier of all adjacent cells of measuring terminals to be not present Signal receiving quality is examined, using the maximum cell of Reference Signal Received Quality in all adjacent cells as the cell after gravity treatment.
  20. 20. terminal according to claim 16, it is characterised in that when the cell reselection includes adjacent cell with reference to factor Send the frequency of multicast service carrier wave and the preset rules are all adjacent cells and consider to support terminal to preset multicast service During the priority of cell, second determining module includes：
    Second acquisition unit, for obtaining adjusting parameter corresponding to the cell reselection types of base station transmission, the cell reselection class Adjusting parameter corresponding to type includes calculating the adjustment amount of Reference Signal Received Quality and/or the adjustment amount and reference signal reception First predetermined number of the preferable adjacent cell of corresponding relation and terminal of quality；
    4th measuring unit, the Reference Signal Received Quality for the main carrier of all adjacent cells of measuring terminals；
    8th determining unit, for the Reference Signal Received Quality of the main carrier according to all adjacent cells, it is determined that meeting S standards The seven cell of the first predetermined number then；
    5th measuring unit, the ginseng for sending terminal for measuring each cell in the seven cell and presetting the carrier wave of multicast service Examine signal receiving quality；
    4th judging unit, for judging to connect with the presence or absence of the reference signal for the carrier wave for supporting multicast service in the seven cell Receive the 8th cell that quality meets S criterions；
    9th determining unit, for when eight cell be present, the 8th cell to be supported to the carrier wave of multicast service Reference Signal Received Quality adds the adjustment amount, obtains the first Reference Signal Received Quality；
    Tenth determining unit, for will not belong in the first Reference Signal Received Quality in the 8th cell and seven cell A maximum cell in the Reference Signal Received Quality of the carrier wave of the support multicast service of the 8th cell, as terminal gravity treatment Cell afterwards.
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