CN105848255B - A kind of method and device selecting frequency point - Google Patents

A kind of method and device selecting frequency point Download PDF

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Publication number
CN105848255B
CN105848255B CN201610378371.2A CN201610378371A CN105848255B CN 105848255 B CN105848255 B CN 105848255B CN 201610378371 A CN201610378371 A CN 201610378371A CN 105848255 B CN105848255 B CN 105848255B
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frequency point
terminal
frequency
current
record sheet
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CN105848255A (en
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孟凯凯
罗小烽
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HiSilicon Technologies Co Ltd
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HiSilicon Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)

Abstract

The embodiment of the invention discloses a kind of method and devices for selecting frequency point, it is related to field of communication technology, when the service frequency point that only one frequency point can make AT be communicated and be selected with network in the multiple frequency points searched in net frequency point list to solve the problems, such as AT is unavailable AT constantly search net fall net increase mobile telephone power consumption, this method comprises: terminal determines the need for reselecting frequency point and terminal is presently in whether cell is multifrequency cell；When terminal, which determines, to be needed to reselect frequency point and determine that being presently in cell is multifrequency cell, terminal determines the disabling frequency point in abnormal frequency point record sheet；Terminal selects the first frequency point in multiple frequency points of multifrequency cell using preset algorithm, judge whether the first frequency point is disabling frequency point, if not, terminal determines that the first frequency point is target frequency point, if, terminal updates the input of preset algorithm, and reselects out the second frequency point in multiple frequency points of multifrequency cell, judges whether the second frequency point is disabling frequency point.

Description

A kind of method and device selecting frequency point
Technical field
The present invention relates to field of communication technology more particularly to a kind of method and devices for selecting frequency point.
Background technique
As packet data optimizes evolution (Evolution to packet Data Optimized, abbreviation EV-DO) net The number of users of network is increasing, and network load is also being continuously increased, therefore, by using multifrequency point in EV-DO network Mode carries out networking, can better meet mobile communication for the demand of capacity.
The cell that networking is carried out by the way of multifrequency point is known as multifrequency cell, firstly the need of solution in multifrequency cell Problem is exactly that access terminal (Access Terminal, abbreviation AT) selects service frequency point, needle in multiple frequency points of multifrequency cell To EV-DO network, detailed process as shown in Figure 1, AT searches for network after power-up, using the frequency point searched in net frequency point list, After searching network, AT is synchronized with network, if synchronization failure, AT using search next frequency point in net frequency point list after Continuous search network, if synchronize successfully AT receive Web broadcast system parameters message (System Parameters Message, Abbreviation SPM), if AT receives SPM failure, AT continues searching network using the next frequency point searched in net frequency point list, if AT connects SPM success is received, AT judges whether SPM updates, if SPM does not update, AT continues to SPM, if SPM updates, AT judges to take in SPM Whether the frequency points of band are greater than 1；If frequency points continue to SPM no more than 1, AT, if frequency points are used greater than 1, AT It is continued on the service frequency point after selecting a service frequency point in multiple frequency points that Hash (Hash) algorithm carries in SPM SPM。
In above process, if in the multiple frequency points of AT searched in net frequency point list only one frequency point can make AT with Network is communicated, and AT determines the AT meeting when the SPM received on the frequency point updates and the number of the frequency point in SPM is greater than 1 Service frequency point is selected in multiple frequency points that SPM is carried, if service frequency point is also unavailable, due to searching in net frequency point list for AT Multiple frequency points in only one frequency point can AT be communicated with network, then the service frequency point that AT is determined every time is same One frequency point, then, AT can constantly search net and fall net, increase the power consumption of mobile phone, shorten the stand-by time of mobile phone, can also shadow Ring user access network.
Summary of the invention
The embodiment of the present invention provides a kind of method and device for selecting frequency point, to solve the searching in net frequency point list of AT Multiple frequency points in only one frequency point service frequency point that AT can be made to be communicated and be selected with network it is unavailable when AT It constantly searches net and falls the problem of net increases mobile telephone power consumption.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of method for selecting frequency point, comprising: terminal determine the need for reselecting frequency point and The terminal is presently in whether cell is multifrequency cell；Work as described in frequency point and determination when terminal determination needs to reselect When preceding locating cell is multifrequency cell, the terminal determines the disabling frequency point in abnormal frequency point record sheet, the exception frequency point note The frequency of abnormity that table is used for the terminal recording exceptional frequency point is recorded, the frequency of abnormity of a frequency point refers to that the terminal continually attempts to It is communicated using the frequency point with network but not successful number, the disabling frequency point in the exception frequency point record sheet refers to different Normal number, which is greater than preset threshold and is marked as time of disabling frequency point, is less than the frequency point of disabling duration；The terminal uses Preset algorithm selects the first frequency point in multiple frequency points of the multifrequency cell, judges whether first frequency point is disabling frequency Point, if it is not, the terminal determines that first frequency point is target frequency point, if so, the terminal updates the defeated of the preset algorithm Enter, and reselect out the second frequency point in multiple frequency points of the multifrequency cell, judges whether second frequency point is disabling Frequency point, if it is not, the terminal determines that second frequency point is target frequency point, if so, the terminal updates the preset algorithm Input, and frequency point is reselected in multiple frequency points of the multifrequency cell, until when the frequency point selected is not disabling frequency point, Determine that the frequency point is target frequency point.
Method provided in an embodiment of the present invention, since the exception that terminal has recorded frequency point in abnormal frequency point record sheet is secondary Number, if as soon as frequency point through can not all be communicated with network after the continually attempting to of terminal preset threshold number, then the frequency point It can be registered as disabling frequency point, after determining disabling frequency point, terminal can be using preset algorithm and by changing pre- impute It is not the target frequency point for disabling frequency point that the input of method is selected in multiple frequency points of multifrequency cell, in this way, terminal repeatedly searches net Repeatedly after selection frequency point, the frequency point for having access to network is always determined.Compared with prior art, even if terminal searches net frequency point Only one frequency point can make terminal be communicated with network in multiple frequency points in list, and terminal determination connects on the frequency point When the SPM received updates and the number of the frequency point in SPM is greater than 1, service frequency point is selected, if terminal is in preset threshold number Continually attempt to after all can not be communicated by the service frequency point with network, then terminal, which will pass through, changes preset algorithm Input reselects out other frequency points as service frequency point and has saved end in this way it is prevented that terminal, which constantly searches net, falls net The power consumption at end may also pass through and make terminal smoothly access network after repeatedly attempting.
With reference to first aspect, in the first possible implementation, terminal determine the need for reselecting frequency point with And the terminal is presently in whether cell is multifrequency cell, comprising: terminal determines whether be successfully received net in current frequency point Whether the system parameters message SPM and the SPM that network is sent update, if being, the terminal determination needs to reselect frequency point； The terminal determines whether the frequency points carried in the SPM are greater than 1, if so, the terminal determines that being presently in cell is Multifrequency cell.
With reference to first aspect, the possible implementation of the first of first aspect, in the second possible implementation, The preset algorithm is hash algorithm, and the input of the preset algorithm includes the session seed of the terminal.
With reference to first aspect, the possible implementation of the first of first aspect or second of possible implementation, In In the third possible implementation, the method also includes: when the terminal is unsuccessfully received institute in the current frequency point State the SPM of network transmission, the terminal is lost in the current frequency point failed authentication or the terminal in the current frequency point link setup When losing, if the terminal determines that the terminal is worked as by described in when not including the current frequency point in the abnormal frequency point record sheet Preceding frequency point is added to the abnormal frequency point record sheet and the frequency of abnormity of the current frequency point is denoted as 1, if the terminal determines When including the current frequency point in the exception frequency point record sheet, the frequency of abnormity of the current frequency point is added 1 by the terminal；Institute It states terminal and judges whether the frequency of abnormity of the current frequency point is greater than preset threshold；If so, the terminal is by the current frequency point Continue labeled as disabling frequency point, and after disabling duration for the current frequency point setting using the next frequency point searched in net frequency point list Search for network, when the disabling time of the current frequency point reach disabling duration when, will the current frequency point from it is described exception frequency point It is removed in record sheet；If it is not, the terminal continues using the next frequency point search network searched in net frequency point list.
With reference to first aspect, the possible implementation of the first of first aspect is to the third possible implementation, In It is described when the target frequency point and the current frequency point selected are same frequency point in 4th kind of possible implementation Method further include: the terminal determines whether the negotiation that conversates with the network；If so, the terminal and the network carry out Session negotiation, after session negotiation success, the terminal is clear from the abnormal frequency point record sheet by the target frequency point It removes；If it is not, the terminal removes the target frequency point from the abnormal frequency point record sheet.
With reference to first aspect, the possible implementation of the first of first aspect is to the third possible implementation, In In 5th kind of possible implementation, when the target frequency point and the current frequency point selected are not same frequency point, institute State method further include: the terminal reconfigures common control channel and access channel；When reconfigure common control channel and After accessing channel success, the terminal determines whether the negotiation that conversates with the network；If so, the terminal and the network Conversate negotiation, and after session negotiation success, the terminal is by the target frequency point from the abnormal frequency point record sheet Middle removing；If it is not, the terminal removes the target frequency point from the abnormal frequency point record sheet.
With reference to first aspect, the possible implementation of the first of first aspect is to the 5th kind of possible implementation, In In 6th kind of possible implementation, the method also includes: when terminal booting, the terminal is non-the terminal Abnormal frequency point record sheet is obtained in volatile storage medium, before the exception frequency point record sheet is this time switched on for the terminal, The terminal last time is stored in the abnormal frequency point record sheet in the non-volatile memory medium of the terminal when shutting down.
Second aspect provides a kind of terminal, comprising: determination unit, be used to determine whether to need to reselect frequency point and The terminal is presently in whether cell is multifrequency cell；The determination unit is also used to need to reselect frequency point when determination And when to be presently in cell described in determining be multifrequency cell, the disabling frequency point in exception frequency point record sheet, the abnormal frequency are determined Point record sheet is used for the frequency of abnormity of the terminal recording exceptional frequency point, and the frequency of abnormity of a frequency point refers to that the terminal is continuous Trial is communicated using the frequency point with network but not successful number, and the disabling frequency point in the exception frequency point record sheet is Refer to frequency of abnormity be greater than preset threshold and be marked as disabling frequency point time be less than disabling duration frequency point；Processing unit, For selecting the first frequency point in multiple frequency points of the multifrequency cell using preset algorithm, whether first frequency point is judged To disable frequency point, if it is not, determining that first frequency point is target frequency point, if so, updating the input of the preset algorithm, and in institute It states in multiple frequency points of multifrequency cell and reselects out the second frequency point, judge whether second frequency point is disabling frequency point, if it is not, Determine that second frequency point is target frequency point, if so, updating the input of the preset algorithm, and in the multiple of the multifrequency cell Frequency point is reselected in frequency point, until determining that the frequency point is target frequency point when the frequency point selected is not disabling frequency point.
The each unit in terminal provided in the embodiment of the present invention is for executing the above method, accordingly, with respect to the terminal Beneficial effect referring to the beneficial effect of method, details are not described herein.
In conjunction with second aspect, in the first possible implementation, the determination unit is specifically used for: determining current Whether the system parameters message SPM and the SPM whether frequency point is successfully received network transmission update, if being, determine and need Reselect frequency point；Determine whether the frequency points carried in the SPM are greater than 1, if so, determining that being presently in cell is multifrequency Cell.
In conjunction with the first possible implementation of second aspect, second aspect, in the second possible implementation, The preset algorithm is hash algorithm, and the input of the preset algorithm includes the session seed of the terminal.
In conjunction with the first possible implementation or second of possible implementation of second aspect, second aspect, In In the third possible implementation, the terminal further include: recording unit, for when the terminal the current frequency point not It is successfully received the SPM of the network transmission, the terminal is worked as in the current frequency point failed authentication or the terminal described When preceding frequency point link setup fails, if the determination unit determines when not including the current frequency point in the abnormal frequency point record sheet, The current frequency point is added to the abnormal frequency point record sheet and the frequency of abnormity of the current frequency point is denoted as 1, if described When determination unit is determined in the abnormal frequency point record sheet comprising the current frequency point, the frequency of abnormity of the current frequency point is added 1；Judging unit, for judging whether the frequency of abnormity of the current frequency point is greater than preset threshold；Execution unit, for described When judging unit judges that the frequency of abnormity of the current frequency point is greater than the preset threshold, by the current frequency point labeled as taboo Continue with frequency point, and after disabling duration for the current frequency point setting using the next frequency point dragnet searched in net frequency point list Network, when the disabling time of the current frequency point reaching disabling duration, will the current frequency point from the exception frequency point record sheet Middle removing；It is also used to when the judging unit judges the frequency of abnormity of the current frequency point no more than the preset threshold, Continue using the next frequency point search network searched in net frequency point list.
In conjunction with second aspect, second aspect the first possible implementation to the third possible implementation, In In 4th kind of possible implementation, the terminal further include: conversation element and clearing cell；When the target frequency selected When point and the current frequency point are same frequency point, the determination unit is also used to determine whether the association that conversates with the network Quotient；The negotiation if so, conversation element and the network conversate, after session negotiation success, the clearing cell The target frequency point is removed from the abnormal frequency point record sheet；If it is not, the clearing cell is by the target frequency point from institute It states and is removed in abnormal frequency point record sheet.
In conjunction with second aspect, second aspect the first possible implementation to the third possible implementation, In In 5th kind of possible implementation, the terminal further include: configuration unit, conversation element and clearing cell；The configuration is single Member, for reconfiguring common control channel when the target frequency point and the current frequency point selected are not same frequency point Road and access channel；The determination unit, being also used to determination after reconfiguring common control channel and access channel success is The no negotiation that conversates with the network；The negotiation if so, conversation element and the network conversate is assisted in the session After quotient's success, the clearing cell removes the target frequency point from the abnormal frequency point record sheet；If it is not, the removing is single Member removes the target frequency point from the abnormal frequency point record sheet.
In conjunction with second aspect, second aspect the first possible implementation to the 5th kind of possible implementation, In In 6th kind of possible implementation, the terminal further include: acquiring unit is used for when terminal booting, at the end Abnormal frequency point record sheet is obtained in the non-volatile memory medium at end, the exception frequency point record sheet is that the terminal is this time switched on Before, the abnormal frequency point record being stored in when the terminal last time is shut down in the non-volatile memory medium of the terminal Table.
The third aspect provides a kind of terminal, comprising: memory and processor；The memory, for storing one group of generation Code, the processor execute following movement according to the code: determining the need for reselecting frequency point and the terminal is worked as Whether preceding locating cell is multifrequency cell；When determine need to reselect frequency point and determine described in be presently in cell be multifrequency it is small Qu Shi determines the disabling frequency point in exception frequency point record sheet, and the exception frequency point record sheet is for the terminal recording exceptional frequency The frequency of abnormity of point, the frequency of abnormity of a frequency point refer to the terminal continually attempt to be communicated with network using the frequency point but Not successful number, the disabling frequency point in the exception frequency point record sheet refer to that frequency of abnormity is greater than preset threshold and is marked The time for being denoted as disabling frequency point is less than the frequency point of disabling duration；Using preset algorithm in multiple frequency points of the multifrequency cell The first frequency point is selected, judges whether first frequency point is disabling frequency point, if it is not, determining that first frequency point is target frequency Point if so, updating the input of the preset algorithm, and reselects out the second frequency in multiple frequency points of the multifrequency cell Point judges whether second frequency point is disabling frequency point, if it is not, determining that second frequency point is target frequency point, if so, updating institute The input of preset algorithm is stated, and reselects frequency point in multiple frequency points of the multifrequency cell, until the frequency point selected is not When being disabling frequency point, determine that the frequency point is target frequency point.
Each device in the terminal provided in the embodiment of the present invention is for executing the above method, accordingly, with respect to the terminal Beneficial effect referring to the beneficial effect of method, details are not described herein.
In conjunction with the third aspect, in the first possible implementation, the processor is specifically used for: determining in current frequency Whether the system parameters message SPM and the SPM whether point is successfully received network transmission update, if being, determine and need weight New selection frequency point；Determine whether the frequency points carried in the SPM are greater than 1, if so, determining that being presently in cell is that multifrequency is small Area.
In conjunction with the first possible implementation of the third aspect, the third aspect, in the second possible implementation, The preset algorithm is hash algorithm, and the input of the preset algorithm includes the session seed of the terminal.
In conjunction with the first possible implementation or second of possible implementation of the third aspect, the third aspect, In In the third possible implementation, the processor is also used to: when the terminal is unsuccessfully received in the current frequency point SPM that the network is sent, the terminal are in the current frequency point failed authentication or the terminal in the current frequency point link setup When failure, however, it is determined that when not including the current frequency point in the exception frequency point record sheet, the current frequency point is added to institute It states abnormal frequency point record sheet and the frequency of abnormity of the current frequency point is denoted as 1, however, it is determined that wrapped in the exception frequency point record sheet When containing the current frequency point, the frequency of abnormity of the current frequency point is added 1；Judge whether the frequency of abnormity of the current frequency point is big In preset threshold；If so, by the current frequency point labeled as disabling frequency point, and it is subsequent for the current frequency point setting disabling duration It is continuous that network is searched for using the next frequency point searched in net frequency point list, reach disabling duration when the disabling time of the current frequency point When, the current frequency point is removed from the abnormal frequency point record sheet；If it is not, continuing next in net frequency point list using searching Frequency point searches for network.
In conjunction with the third aspect, the third aspect the first possible implementation to the third possible implementation, In In 4th kind of possible implementation, the processor is also used to: determining whether the negotiation that conversates with the network；If so, It conversates negotiation with the network, after session negotiation success, the target frequency point is recorded from the abnormal frequency point It is removed in table；If it is not, the target frequency point is removed from the abnormal frequency point record sheet.
In conjunction with the third aspect, the third aspect the first possible implementation to the third possible implementation, In In 5th kind of possible implementation, the processor is also used to: when the target frequency point and the current frequency point selected When not being same frequency point, common control channel and access channel are reconfigured；Believe when reconfiguring common control channel and accessing After road success, it is determined whether conversate negotiation with the network；If so, conversating negotiation with the network, in the meeting After words are negotiated successfully, the target frequency point is removed from the abnormal frequency point record sheet；If it is not, by the target frequency point from institute It states and is removed in abnormal frequency point record sheet.
In conjunction with the third aspect, the third aspect the first possible implementation to the 5th kind of possible implementation, In In 6th kind of possible implementation, the processor is also used to: when terminal booting, in the non-volatile of the terminal Abnormal frequency point record sheet is obtained in storage medium, the exception frequency point record sheet is the end before the terminal is this time switched on End last time is stored in the abnormal frequency point record sheet in the non-volatile memory medium of the terminal when shutting down.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of the method for selection frequency point in the prior art；
Fig. 2 is the composition schematic diagram of EV-DO network provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of method for selecting frequency point provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the method for another selection frequency point provided in an embodiment of the present invention；
Fig. 5 is a kind of composition schematic diagram of terminal provided in an embodiment of the present invention；
Fig. 6 is the composition schematic diagram of another terminal provided in an embodiment of the present invention；
Fig. 7 is the composition schematic diagram of another terminal provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Method provided in an embodiment of the present invention can be applied in EV-DO network, as shown in Fig. 2, EV-DO network includes nothing Line access (Radio Access Network, abbreviation RAN) and core net (Core Network, abbreviation CN), wherein RAN In network element include that (AN for including is for access net (Access Network, abbreviation AN) in the network element in RAN in Fig. 2 Source AN, i.e. source AN, in user's moving process, when session switching occurs, source AN and Target AN, that is, target AN can The configuration information of original session is transmitted by A13 interface), the Packet Control Function (Packet that is connect by A8/A9 interface with AN Control Function, abbreviation PCF), access net authentication/certification/accounting server for being connect by A12 interface with AN (Access Network-Authentication, Accounting, Authorization Server, abbreviation AN-AAA).CN In network element include group data service node (the Packet Data Service being connect by A10/A11 interface with PCF Node, abbreviation PDSN), pass through dial user's remote authentication service (Remote Authentication Dial In User Service, abbreviation RADIUS) connect with PDSN authentication/certification/accounting server (Authentication, Accounting, Authorization Server, abbreviation AAA) entity, the network element in CN further includes function external entity (Foreign Agent, abbreviation FA) and home agent (Home Agent, abbreviation HA), FA can be closed with PDSN and be set, PDSN/FA, Between AAA and HA can by internet protocol security protocol (Internet Protocol Security, abbreviation IPsec) into Row information interaction.
Wherein, AN completes base station transceiver and its control function, and PCF completes the selection of A8 and A10 establishment of connection and PDSN Function, AN-AAA complete the algorithm and parameter of access authentication, execute access authentication function.PDSN mainly completes packet data meeting Foundation, management and the release function of words, it is as mobile network that AAA, which is responsible for the related registration of user, authentication and billing function, FA, Between external agent in agreement (Internet Protocol, abbreviation IP) technology for interconnecting, be responsible for registration, charging and forwarding The work such as user data.HA is used to provide the functions such as IP address distribution, Route Selection and the data encryption when user roams.
As shown in Fig. 2, AT carries out Signalling exchange by air interface (Air Interface) and source AN.AT is i.e. hereinafter Terminal.
The embodiment of the invention provides a kind of methods for selecting frequency point, as shown in Figure 3, comprising:
301, terminal determines the need for reselecting frequency point and the terminal is presently in whether cell is that multifrequency is small Area.
It should be noted that the embodiment of the invention provides a kind of methods for selecting frequency point, specifically, this method is one kind The method that frequency point is selected in multiple frequency points of multifrequency cell, therefore, before selecting frequency point, terminal is necessary to determine whether to need It reselects frequency point and terminal is presently in whether cell is multifrequency cell, in the case that definitive result is to be, terminal Reselect frequency point.
Optionally, step 301 is in specific implementation, comprising: terminal determines whether is successfully received network in current frequency point Whether the system parameters message SPM and the SPM of transmission update, if being, the terminal determination needs to reselect frequency point；Institute It states terminal and determines whether the frequency points carried in the SPM are greater than 1, if so, the terminal determines that it is more for being presently in cell Frequency cell.
Wherein, when terminal current frequency point be successfully received network transmission SPM when, illustrate that terminal can be in current frequency point It can be communicated with network, otherwise, illustrate that terminal cannot be communicated in current frequency point with network.
After terminal resides in and is presently in and communicated in cell with network, if terminal is successfully received network transmission SPM and SPM update, illustrate that the configuration parameter for being presently in cell is changed, terminal needs to reselect frequency point.It needs Illustrate, judges whether SPM updates and refer to whether the SPM that this is received has occurred compared with the SPM that the last time receives Variation, if, it is believed that SPM update, if not, it is believed that SPM does not update, due to terminal for the first time receive SPM when, can not with it is previous It is secondary to be compared, therefore, when receiving SPM for the first time after terminal booting, it is believed that SPM is to update.
After terminal determines that SPM updates, terminal can be presently in cell according to the determination of the number of the frequency point carried in SPM It whether is multifrequency cell, specifically, illustrating that terminal is presently in cell is to adopt when the number of the frequency point carried in SPM is greater than 1 The cell of networking is carried out with multiple frequency points, therefore, terminal needs select frequency point in multiple frequency points, otherwise, illustrate that terminal is current Locating cell is the cell using single frequency point networking, then terminal can only be communicated on the single frequency point with network, no It needs to select frequency point.Wherein, when the cell locating for the terminal is multifrequency cell, multiple frequency points i.e. multifrequency cell for being carried in SPM Multiple frequency points.When the terminal determine need to reselect frequency point and determine described in be presently in cell be multifrequency cell when, Execute step 302.
302, when the terminal determine need to reselect frequency point and determine described in be presently in cell be multifrequency cell when, The terminal determines that the disabling frequency point in abnormal frequency point record sheet, the exception frequency point record sheet are used for the terminal recording exceptional The frequency of abnormity of frequency point, the frequency of abnormity of a frequency point refer to that the terminal continually attempts to be communicated using the frequency point with network But not successful number, the disabling frequency point in the exception frequency point record sheet refer to frequency of abnormity be greater than preset threshold and by The frequency point of disabling duration is less than labeled as the time of disabling frequency point.
Wherein, the frequency of abnormity of frequency point refers to that the terminal continually attempts to be communicated with network but not using the frequency point Successful number, continuously referring to for continuous for the frequency point herein, i.e., attempts to use the frequency point and net in terminal twice Between network is communicated, terminal can also attempt to be communicated using remaining frequency point with network, and for the frequency point, this is twice It is continuously to attempt twice that trial, which still believes that, if preset threshold is 5, when terminal continually attempt to using the frequency point and network into When row communicates but not successful number reaches 5 times, then the frequency point is disabling frequency point.It should be noted that abnormal frequency point record Frequency point in table is abnormal frequency point, and abnormal frequency point refers to the frequency point that frequency of abnormity is more than or equal to 1.
Illustratively, if terminal is continually attempted to whithin a period of time using f1、f3、f1、f4、f1、f3、f1、f4、f1、f3With net Network is communicated, wherein attempts to use f15 times communicated with network fail, then terminal determines f1Frequency of abnormity be 5.
Specifically, terminal attempts to be communicated using a frequency point with network but not successful situation includes: that terminal exists The frequency point be unsuccessfully received the SPM of network transmission, terminal the frequency point failed authentication or terminal in the frequency point link setup unsuccessfully etc..
It should be noted that preset threshold and the disabling duration of frequency point can flexible configuration according to demand, increase algorithm Flexibility.
Optionally, the method also includes: when the terminal booting when, the terminal is deposited in the non-volatile of the terminal Abnormal frequency point record sheet is obtained in storage media, the exception frequency point record sheet is the terminal before the terminal is this time switched on Last time is stored in the abnormal frequency point record sheet in the non-volatile memory medium of the terminal when shutting down.
Specifically, the initial abnormal frequency point record sheet that terminal is got can be terminal before this booting, finally The abnormal frequency point record sheet being stored in when primary shutdown in the non-volatile memory medium of terminal.Wherein, abnormal frequency point is recorded The information that table is stored in non-volatile memory medium after can preventing terminal power down in abnormal frequency point record sheet is lost.
303, the terminal selects the first frequency point using preset algorithm in multiple frequency points of the multifrequency cell, judges Whether first frequency point is disabling frequency point, if it is not, the terminal determines that first frequency point is target frequency point, if so, described Terminal updates the input of the preset algorithm, and reselects out the second frequency point in multiple frequency points of the multifrequency cell, sentences Whether second frequency point that breaks is disabling frequency point, if it is not, the terminal determines that second frequency point is target frequency point, if so, institute The input that terminal updates the preset algorithm is stated, and reselects frequency point in multiple frequency points of the multifrequency cell, until choosing When the frequency point selected out is not disabling frequency point, determine that the frequency point is target frequency point.
It should be noted that the first frequency point and the second frequency point mentioned in the embodiment of the present invention refer both to exist using preset algorithm The frequency point selected in multiple frequency points of multifrequency cell, and it is not specific to some frequency point.
In embodiments of the present invention, current frequency point refers to that terminal was communicated or attempted with network and network at current time The frequency point communicated, current frequency point can be the frequency point searched in net frequency point list, or multiple frequency points of multifrequency cell In frequency point, target frequency point refers to the frequency point that the SS later selected is communicated with network, after determining target frequency point Terminal is communicated using target frequency point with network.
Optionally, the preset algorithm is hash algorithm, and the input (i.e. the key of hash algorithm) of the preset algorithm includes The session seed (Session Seed) of terminal, the input of hash algorithm further include the frequency points of multifrequency cell.In this case, When the session seed session seed difference of terminal, the frequency point determined using hash algorithm is also different.Specifically, can pass through Change the parameter update session seed in session seed generating algorithm.
Illustratively, if multiple frequency points of multifrequency cell are f1、f3、f5、f6, disabling frequency point in abnormal frequency point record sheet For f1, then the realization process of step 303 are as follows: terminal is using the session seed of terminal as the input of hash algorithm in f1、f3、f5、f6 Middle selection frequency point, if the frequency point selected is except f1Except other frequency points, terminal determine other frequency points be target frequency point；If The frequency point selected is f1, the session seed of terminal more new terminal, and using updated session seed as the defeated of hash algorithm Enter to continue in f1、f3、f5、f6The frequency point is determined as target until the frequency point selected is not disabling frequency point by middle selection frequency point Frequency point.
It should be noted that mark (Unicast can be accessed by terminal unicast after terminal more new session seed Access Terminal Identifier, abbreviation UATI) request message connects updated session seed with terminal at random The form of inlet identity (Random Access Terminal Identifier, abbreviation RATI) is sent to AN, so as to AN use with The identical method of terminal determines that target frequency point is communicated with terminal.
Optionally, the method also includes:
When the terminal is unsuccessfully received the SPM that the network sends, the terminal described in the current frequency point Current frequency point failed authentication or the terminal are when the current frequency point link setup fails, if the terminal determines the abnormal frequency point When not including the current frequency point in record sheet, the current frequency point is added to the abnormal frequency point record sheet simultaneously by the terminal The frequency of abnormity of the current frequency point is denoted as 1, if the terminal determines in the abnormal frequency point record sheet comprising described current When frequency point, the frequency of abnormity of the current frequency point is added 1 by the terminal；
The terminal judges whether the frequency of abnormity of the current frequency point is greater than preset threshold；
If so, the terminal by the current frequency point labeled as disabling frequency point, and for the current frequency point setting disabling when Continue to reach disabling when the disabling time of the current frequency point using the next frequency point search network searched in net frequency point list after length When duration, the current frequency point is removed from the abnormal frequency point record sheet；
If it is not, the terminal continues using the next frequency point search network searched in net frequency point list.
Wherein, it is unsuccessfully received that the SPM of network transmission, the terminal is in the current frequency point in current frequency point when terminal Failed authentication or the terminal illustrate that terminal can not be led in current frequency point with network when the current frequency point link setup fails Letter, therefore, adds 1 for the frequency of abnormity of current frequency point.After a frequency point becomes disabling frequency point, this frequency point will not be eternal It is disabled, therefore duration can be disabled for the frequency point setting, to lift a ban the frequency point.
It should be noted that under normal circumstances, what the position that terminal can be presently according to terminal determined terminal searches net Frequency point list searches the frequency point in net frequency point list for terminal searching network, and when terminal is in different positions, what is determined is searched The list of net frequency point may also be different, search between multiple frequency points of the frequency point and multifrequency cell in net frequency point list and have no direct pass System.Illustratively, it includes f in net frequency point list that terminal determined, which searches,1、f2、f4, include f in multiple frequency points of multifrequency cell1、f3、 f5、f6。
Optionally, when the target frequency point and the current frequency point selected are same frequency point, the method is also wrapped It includes:
The terminal determines whether the negotiation that conversates with the network；
The negotiations if so, terminal and the network conversate, after the session negotiation successfully, the terminal is by institute Target frequency point is stated to remove from the abnormal frequency point record sheet；
If it is not, the terminal removes the target frequency point from the abnormal frequency point record sheet.
Wherein, terminal and network conversate the process i.e. terminal of negotiation and network determines protocol version communicate, volume The process of the communication requirements such as bit rate.
Optionally, when the target frequency point and the current frequency point selected are not same frequency point, the method is also Include:
The terminal reconfigures common control channel and access channel；
After reconfiguring common control channel and access channel success, the terminal determines whether to carry out with the network Session negotiation；
The negotiations if so, terminal and the network conversate, after the session negotiation successfully, the terminal is by institute Target frequency point is stated to remove from the abnormal frequency point record sheet；
If it is not, the terminal removes the target frequency point from the abnormal frequency point record sheet.
When target frequency point and current frequency point are inconsistent, since terminal can use target frequency point and net during subsequent communications Network is communicated, and therefore, it is necessary to reconfigure common control channel and access channel.
Method provided in an embodiment of the present invention, since the exception that terminal has recorded frequency point in abnormal frequency point record sheet is secondary Number, if as soon as frequency point through can not all be communicated with network after the continually attempting to of terminal preset threshold number, then the frequency point It can be registered as disabling frequency point, after determining disabling frequency point, terminal can be using preset algorithm and by changing pre- impute It is not the target frequency point for disabling frequency point that the input of method is selected in multiple frequency points of multifrequency cell, in this way, terminal repeatedly searches net Repeatedly after selection frequency point, the frequency point for having access to network is always determined.Compared with prior art, even if terminal searches net frequency point Only one frequency point can make terminal be communicated with network in multiple frequency points in list, and terminal determination connects on the frequency point When the SPM received updates and the number of the frequency point in SPM is greater than 1, service frequency point is selected, if terminal is in preset threshold number Continually attempt to after all can not be communicated by the service frequency point with network, then terminal, which will pass through, changes preset algorithm Input reselects out other frequency points as service frequency point and has saved end in this way it is prevented that terminal, which constantly searches net, falls net The power consumption at end may also pass through and make terminal smoothly access network after repeatedly attempting.
The embodiment of the invention also provides a kind of methods for selecting frequency point, for selection frequency point provided by the above embodiment Method do exemplary illustration, as shown in figure 4, this method comprises:
401, terminal is switched on.
402, terminal obtains abnormal frequency point record sheet in non-volatile memory medium.
Wherein, terminal can be using the abnormal frequency point record sheet stored in non-volatile memory medium as initial abnormal frequency Abnormal frequency point record sheet is stored in non-volatile memory medium after can preventing terminal power down abnormal frequency point note by point record sheet The information recorded in table is lost.
403, terminal searches for network in current frequency point.
Specifically, terminal can search net frequency point list according to the position determination that terminal is presently in, arranged according to net frequency point is searched Frequency point in table searches for network, and current frequency point refers to that terminal current time is communicated or attempted with network to be communicated with network Frequency point.
404, terminal synchronizes on current frequency point with network, and determines whether to synchronize success.
It should be noted that can first obtain pilot signal during terminal searching network, then solve synchronizing channel, Synchronizing channel successfully decoded, then it represents that terminal and Network Synchronization success, otherwise, terminal and Network Synchronization fail.
If synchronizing success, step 405 is executed, if synchronization failure, terminal is under the current frequency point searched in net frequency point list One frequency point returns to step 403, it should be noted that when terminal is using the next of the current frequency point searched in net frequency point list When a frequency point search network, current frequency point is next frequency point.For example, terminal is first using the f searched in net frequency point list1 Network is searched for, at this point, current frequency point is f1If terminal is in f1Upper unsuccessful with Network Synchronization, terminal is used and is searched in net frequency point list F1Next frequency point f2Network is searched for, at this point, current frequency point is f2。
405, terminal receives SPM on current frequency point, and determines whether to receive successfully.
If reception failure, step 406 is executed, if receiving successfully, executes step 409.
406, the frequency of abnormity of the current frequency point in abnormal frequency point record sheet is added 1 by terminal.
407, terminal judges whether the frequency of abnormity of current frequency point is greater than or equal to preset threshold.
If so, step 408 is executed, if it is not, terminal is returned in the next frequency point for the current frequency point searched in net frequency point list Execute step 403.
408, current frequency point is disabled duration labeled as disabling frequency point, and for current frequency point setting by terminal.Illustratively, prohibit It can be TRUE with label, then when current frequency point is disabling frequency point, current frequency point is labeled as TRUE, the default of current frequency point Labeled as FALSE.
Specifically, can be one timer of each frequency point setting, the method for disabling duration for current frequency point setting can be with To open the corresponding timer of current frequency point, the duration of timer disables duration, will be current when the duration of timer reaches Frequency point is removed from abnormal frequency point record sheet.
Illustratively, table 1 is abnormal frequency point record sheet, includes 7 frequency points, respectively f in table 11、f2、f3、f4、f5、f6、 f7, wherein the frequency of abnormity of this 7 frequency points may refer to table 1, specifically, when disabling, is 20 minutes a length of if preset threshold is 5, Then due to f4And f5Frequency of abnormity be 5 times, then by f4And f5Labeled as TRUE, remaining frequency point is labeled as FALSE.
Table 1
Frequency point Frequency of abnormity Label Disable duration
f1 1 FALSE Nothing
f2 2 FALSE Nothing
f3 2 FALSE Nothing
f4 5 TRUE 20 minutes
f5 5 TRUE 20 minutes
f6 3 FALSE Nothing
f7 1 FALSE Nothing
After step 408, terminal executes step 403 on the next frequency point for the current frequency point searched in net frequency point list.
409, terminal determines whether SPM updates.
Specifically, having mark in SPM is used to indicate whether SPM updates, whether terminal can determine SPM according to the mark It updates, it should be noted that when receiving SPM for the first time after terminal booting, terminal determines that SPM updates.
If so, terminal executes step 410, if it is not, terminal returns to step 405.
410, terminal determines whether the frequency points carried in SPM are greater than 1.
If so, terminal executes step 411, if it is not, terminal returns to step 405.
411, terminal determines the disabling frequency point in abnormal frequency point record sheet.
412, terminal is using the session seed of terminal as selecting in multiple frequency points that the input of hash algorithm carries in SPM Frequency point out.
413, terminal determines whether the frequency point selected is disabling frequency point.
If so, step 414 is executed, if it is not, executing step 416.
414, it terminal more new session seed and is carried in SPM using updated session seed as the input of hash algorithm Multiple frequency points in select frequency point.
415, terminal determines whether the frequency point selected is disabling frequency point.
If so, return step 414, if it is not, executing step 416.
416, terminal determines that the frequency point selected is target frequency point.
417, terminal determines whether current frequency point and target frequency point are same frequency point.
If it is not, step 419 is executed, if so, executing step 418.
418, terminal reconfigures common control channel and access channel.
After common control channel and access channel configuration success, step 419 is executed.
419, terminal determines whether the negotiation that conversates with network.
The negotiation if terminal determination and network conversate, when session negotiation success, terminal is resided on target frequency point It is communicated with network, if terminal determination does not need the negotiation that conversates with network, terminal is resided directly on target frequency point It is communicated with network.
If so, step 420 is executed, if it is not, executing step 422.
420, terminal and network conversate negotiation.
421, after session negotiation success, terminal removes target frequency point from abnormal frequency point record sheet.
It executes step 421 and returns to step 405 later.
422, terminal removes target frequency point from abnormal frequency point record sheet.
It executes step 422 and returns to step 405 later.
It is communicated it should be noted that if terminal resides on target frequency point with network, then illustrates that terminal can be in mesh It is communicated on mark frequency point with network, therefore, target frequency point can be removed from abnormal frequency point record sheet.Illustratively, with For table 1, if the target frequency point selected is f3And terminal is in f3Upper to negotiate successfully with network session, then terminal is by 7 in table 1 F in a frequency point3It is removed from table 1.
Method provided in an embodiment of the present invention, since the exception that terminal has recorded frequency point in abnormal frequency point record sheet is secondary Number, if as soon as frequency point through can not all be communicated with network after the continually attempting to of terminal preset threshold number, then the frequency point It can be registered as disabling frequency point, after determining disabling frequency point, terminal can be using preset algorithm and by changing pre- impute It is not the target frequency point for disabling frequency point that the input of method is selected in multiple frequency points of multifrequency cell, in this way, terminal repeatedly searches net Repeatedly after selection frequency point, the frequency point for having access to network is always determined.Compared with prior art, even if terminal searches net frequency point Only one frequency point can make terminal be communicated with network in multiple frequency points in list, and terminal determination connects on the frequency point When the SPM received updates and the number of the frequency point in SPM is greater than 1, service frequency point is selected, if terminal is in preset threshold number Continually attempt to after all can not be communicated by the service frequency point with network, then terminal, which will pass through, changes preset algorithm Input reselects out other frequency points as service frequency point and has saved end in this way it is prevented that terminal, which constantly searches net, falls net The power consumption at end may also pass through and make terminal smoothly access network after repeatedly attempting.
The embodiment of the invention also provides a kind of terminals 50, as shown in Figure 5, comprising:
Determination unit 501 is used to determine whether need to reselect frequency point and the terminal is presently in cell For multifrequency cell；
The determination unit 501 is also used to need to reselect frequency point and be presently in cell and be described in determining when determining When multifrequency cell, determine that the disabling frequency point in exception frequency point record sheet, the exception frequency point record sheet are recorded for the terminal The frequency of abnormity of abnormal frequency point, the frequency of abnormity of a frequency point refer to that the terminal continually attempts to carry out using the frequency point and network Communication but not successful number, the disabling frequency point in the exception frequency point record sheet refer to frequency of abnormity be greater than preset threshold, And the time for being marked as disabling frequency point is less than the frequency point of disabling duration；
Processing unit 502, for selecting the first frequency point in multiple frequency points of the multifrequency cell using preset algorithm, Judge whether first frequency point is disabling frequency point, if it is not, determining that first frequency point is target frequency point, if so, described in updating The input of preset algorithm, and the second frequency point is reselected out in multiple frequency points of the multifrequency cell, judge second frequency Whether point is disabling frequency point, if it is not, determine that second frequency point is target frequency point, if so, the input of the preset algorithm is updated, And frequency point is reselected in multiple frequency points of the multifrequency cell, until being determined when the frequency point selected is not disabling frequency point The frequency point is target frequency point.
Optionally, the determination unit 501 is specifically used for:
It determines whether more whether current frequency point be successfully received the system parameters message SPM and the SPM of network transmission Newly, if being, determination needs to reselect frequency point；Determine whether the frequency points carried in the SPM are greater than 1, if so, determining Being presently in cell is multifrequency cell.
Optionally, the preset algorithm is hash algorithm, and the input of the preset algorithm includes the session kind of the terminal Son.
Optionally, as shown in fig. 6, the terminal 50 further include:
Recording unit 503, for being unsuccessfully received what the network was sent in the current frequency point when the terminal SPM, the terminal in the current frequency point failed authentication or the terminal when the current frequency point link setup fails, if it is described really When order member is determined in the abnormal frequency point record sheet not comprising the current frequency point, the current frequency point is added to described different The frequency of abnormity of the current frequency point is simultaneously denoted as 1 by normal frequency point record sheet, if the determination unit determines the abnormal frequency point note When recording in table comprising the current frequency point, the frequency of abnormity of the current frequency point is added 1；
Judging unit 504, for judging whether the frequency of abnormity of the current frequency point is greater than preset threshold；
Execution unit 505, for judging that it is described that the frequency of abnormity of the current frequency point is greater than in the judging unit 504 When preset threshold, by the current frequency point labeled as disabling frequency point, and continue to adopt after disabling duration for the current frequency point setting Network is searched for the next frequency point searched in net frequency point list, it, will when the disabling time of the current frequency point reaching disabling duration The current frequency point is removed from the abnormal frequency point record sheet；It is also used to judge in the judging unit 504 described current When the frequency of abnormity of frequency point is not more than the preset threshold, continue using the next frequency point search network searched in net frequency point list.
Optionally, as shown in fig. 6, the terminal 50 further include: conversation element 506 and clearing cell 507；
When the target frequency point and the current frequency point selected are same frequency point, the determination unit is also used to Determine whether the negotiation that conversates with the network；The negotiation if so, conversation element 506 and the network conversate, In After the session negotiation success, the clearing cell 507 removes the target frequency point from the abnormal frequency point record sheet；
If it is not, the clearing cell 507 removes the target frequency point from the abnormal frequency point record sheet.
Optionally, as shown in fig. 6, the terminal 50 further include: configuration unit 508, conversation element 506 and clearing cell 507；
The configuration unit 508, for not being same frequency point when the target frequency point and the current frequency point selected When, reconfigure common control channel and access channel；
The determination unit is also used to determine whether and institute after reconfiguring common control channel and access channel success Network is stated to conversate negotiation；
The negotiation if so, conversation element 506 and the network conversate, it is described after session negotiation success Clearing cell 507 removes the target frequency point from the abnormal frequency point record sheet；
If it is not, the clearing cell 507 removes the target frequency point from the abnormal frequency point record sheet.
Optionally, as shown in fig. 6, the terminal 50 further include:
Acquiring unit 509, for being obtained in the non-volatile memory medium of the terminal different when terminal booting Normal frequency point record sheet, the exception frequency point record sheet are before the terminal is this time switched on, when the terminal last time is shut down The abnormal frequency point record sheet being stored in the non-volatile memory medium of the terminal.
The each unit in terminal provided in the embodiment of the present invention is for executing the above method, accordingly, with respect to the terminal Beneficial effect referring to the beneficial effect of method, details are not described herein.
The embodiment of the invention also provides a kind of terminals 70, as shown in fig. 7, comprises: memory 701 and processor 702；
The memory 701, for storing one group of code, the processor 702 executes the above method according to the code.
Each device in the terminal provided in the embodiment of the present invention is for executing the above method, accordingly, with respect to the terminal Beneficial effect referring to the beneficial effect of method, details are not described herein.
Wherein, the method that each unit in terminal executes can be executed by the processor in terminal, in hardware realization On, each unit in terminal can be embedded in the form of hardware or independently of in the processor of terminal, can also be with software shape Formula is stored in the memory of terminal, executes the corresponding operation of above each unit in order to which processor calls, which can Think central processing unit (Central Processing Unit, abbreviation CPU), specific integrated circuit (Application Specific Integrated Circuit, abbreviation ASIC) or be arranged to implement one or more of the embodiment of the present invention A integrated circuit.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the module, only Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple module or components can be tied Another system is closed or is desirably integrated into, or some features can be ignored or not executed.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in a processing module Two or more modules are integrated in a module.Above-mentioned integrated module both can take the form of hardware realization, It can be realized in the form of hardware adds software function module.
The above-mentioned integrated module realized in the form of software function module, can store and computer-readable deposit at one In storage media.Above-mentioned software function module is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the portion of each embodiment the method for the present invention Step by step.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store The medium of program code.

Claims (18)

1. a kind of method for selecting frequency point characterized by comprising
Terminal determines the need for reselecting frequency point and the terminal is presently in whether cell is multifrequency cell；
When the terminal determine need to reselect frequency point and determine described in be presently in cell be multifrequency cell when, the terminal Determine the disabling frequency point in exception frequency point record sheet, the exception frequency point record sheet is for the different of the terminal recording exceptional frequency point Normal number, the frequency of abnormity of a frequency point refer to the terminal continually attempt to using the frequency point communicated with network but not at The number of function, the disabling frequency point in the exception frequency point record sheet refer to that frequency of abnormity is greater than preset threshold and is marked as prohibiting The frequency point of disabling duration is less than with the time of frequency point；
The terminal selects the first frequency point in multiple frequency points of the multifrequency cell using preset algorithm, judges described first Whether frequency point is disabling frequency point, if it is not, the terminal determines that first frequency point is target frequency point, if so, the terminal updates The input of the preset algorithm, and the second frequency point is reselected out in multiple frequency points of the multifrequency cell, judge described Whether two frequency points are disabling frequency point, if it is not, the terminal determines that second frequency point is target frequency point, if so, the terminal is more The input of the new preset algorithm, and frequency point is reselected in multiple frequency points of the multifrequency cell, until the frequency selected When point is not disabling frequency point, determine that the frequency point is target frequency point；The preset algorithm be hash algorithm, the preset algorithm it is defeated Enter the session seed including the terminal.
2. the method according to claim 1, wherein terminal determines the need for reselecting frequency point and described Terminal is presently in whether cell is multifrequency cell, comprising:
Terminal is determined whether more whether current frequency point be successfully received the system parameters message SPM and the SPM of network transmission Newly, if being, the terminal determination needs to reselect frequency point；The terminal determines that the frequency points carried in the SPM are It is no to be greater than 1, if so, the terminal determines that being presently in cell is multifrequency cell.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
When the terminal is unsuccessfully received the SPM that the network sends, the terminal described current in the current frequency point Frequency point failed authentication or the terminal are when the current frequency point link setup fails, if the terminal determines the abnormal frequency point record When not including the current frequency point in table, the current frequency point is added to the abnormal frequency point record sheet and by institute by the terminal The frequency of abnormity for stating current frequency point is denoted as 1, if the terminal determines in the abnormal frequency point record sheet comprising the current frequency point When, the frequency of abnormity of the current frequency point is added 1 by the terminal；
The terminal judges whether the frequency of abnormity of the current frequency point is greater than preset threshold；
It if so, the current frequency point is labeled as disabling frequency point by the terminal, and is after the current frequency point setting disables duration Continue to reach disabling duration when the disabling time of the current frequency point using the next frequency point search network searched in net frequency point list When, the current frequency point is removed from the abnormal frequency point record sheet；
If it is not, the terminal continues using the next frequency point search network searched in net frequency point list.
4. according to the method described in claim 2, it is characterized in that, when the target frequency point and the current frequency point selected When for same frequency point, the method also includes:
The terminal determines whether the negotiation that conversates with the network；
The negotiations if so, terminal and the network conversate, after the session negotiation successfully, the terminal is by the mesh Mark frequency point is removed from the abnormal frequency point record sheet；
If it is not, the terminal removes the target frequency point from the abnormal frequency point record sheet.
5. according to the method described in claim 2, it is characterized in that, when the target frequency point and the current frequency point selected When not being same frequency point, the method also includes:
The terminal reconfigures common control channel and access channel；
After reconfiguring common control channel and access channel success, the terminal determines whether to conversate with the network Negotiate；
The negotiations if so, terminal and the network conversate, after the session negotiation successfully, the terminal is by the mesh Mark frequency point is removed from the abnormal frequency point record sheet；
If it is not, the terminal removes the target frequency point from the abnormal frequency point record sheet.
6. the method according to claim 1, wherein the method also includes:
When terminal booting, the terminal obtains abnormal frequency point record in the non-volatile memory medium of the terminal Table, the exception frequency point record sheet are before the terminal is this time switched on, and the terminal last time is stored in described when shutting down Abnormal frequency point record sheet in the non-volatile memory medium of terminal.
7. a kind of terminal characterized by comprising
Determination unit is used to determine whether that needing to reselect frequency point and the terminal is presently in whether cell is that multifrequency is small Area；
The determination unit, be also used to when determine need to reselect frequency point and determine described in be presently in cell be multifrequency cell When, determine that the disabling frequency point in exception frequency point record sheet, the exception frequency point record sheet are used for the terminal recording exceptional frequency point Frequency of abnormity, the frequency of abnormity of a frequency point refers to that the terminal continually attempts to be communicated with network but simultaneously using the frequency point Failed number, the disabling frequency point in the exception frequency point record sheet refer to that frequency of abnormity is greater than preset threshold and labeled To disable the frequency point that the time of frequency point is less than disabling duration；
Processing unit judges institute for selecting the first frequency point in multiple frequency points of the multifrequency cell using preset algorithm State whether the first frequency point is disabling frequency point, if it is not, determining that first frequency point is target frequency point, if so, updating the pre- imputation The input of method, and the second frequency point is reselected out in multiple frequency points of the multifrequency cell, whether judge second frequency point To disable frequency point, if it is not, determining that second frequency point is target frequency point, if so, updating the input of the preset algorithm, and in institute It states in multiple frequency points of multifrequency cell and reselects frequency point, until determining the frequency point when frequency point selected is not disabling frequency point For target frequency point；The preset algorithm is hash algorithm, and the input of the preset algorithm includes the session seed of the terminal.
8. terminal according to claim 7, which is characterized in that the determination unit is specifically used for:
Determine whether the system parameters message SPM and the SPM that whether are successfully received network transmission in current frequency point update, if It is that determination needs to reselect frequency point；Determine whether the frequency points carried in the SPM are greater than 1, if so, determining current Locating cell is multifrequency cell.
9. terminal according to claim 8, which is characterized in that the terminal further include:
Recording unit, for being unsuccessfully received SPM, the end that the network is sent in the current frequency point when the terminal It holds in the current frequency point failed authentication or the terminal when the current frequency point link setup fails, if the determination unit determines When not including the current frequency point in the exception frequency point record sheet, the current frequency point is added to the abnormal frequency point record The frequency of abnormity of the current frequency point is simultaneously denoted as 1 by table, includes if the determination unit determines in the abnormal frequency point record sheet When the current frequency point, the frequency of abnormity of the current frequency point is added 1；
Judging unit, for judging whether the frequency of abnormity of the current frequency point is greater than preset threshold；
Execution unit, for judging that the frequency of abnormity of the current frequency point is greater than the preset threshold in the judging unit When, by the current frequency point labeled as disabling frequency point, and net frequency is searched to continue to use after the current frequency point setting disabling duration Next frequency point in point list searches for network, will be described current when the disabling time of the current frequency point reaching disabling duration Frequency point is removed from the abnormal frequency point record sheet；It is also used to judge that the exception of the current frequency point is secondary in the judging unit When number is no more than the preset threshold, continue using the next frequency point search network searched in net frequency point list.
10. terminal according to claim 8, which is characterized in that the terminal further include: conversation element and clearing cell；
When the target frequency point and the current frequency point selected are same frequency point, the determination unit is also used to determine Whether conversate negotiation with the network；The negotiation if so, conversation element and the network conversate, in the session After negotiating successfully, the clearing cell removes the target frequency point from the abnormal frequency point record sheet；
If it is not, the clearing cell removes the target frequency point from the abnormal frequency point record sheet.
11. terminal according to claim 8, which is characterized in that the terminal further include: configuration unit, conversation element and Clearing cell；
The configuration unit, for when the target frequency point and the current frequency point selected are not same frequency point, again Configure common control channel and access channel；
The determination unit is also used to determine whether and the net after reconfiguring common control channel and access channel success Network conversates negotiation；
The negotiation if so, conversation element and the network conversate, after session negotiation success, the clearing cell The target frequency point is removed from the abnormal frequency point record sheet；
If it is not, the clearing cell removes the target frequency point from the abnormal frequency point record sheet.
12. terminal according to claim 7, which is characterized in that the terminal further include:
Acquiring unit, for obtaining abnormal frequency point in the non-volatile memory medium of the terminal when terminal booting Record sheet, the exception frequency point record sheet are before the terminal is this time switched on, and the terminal last time is stored in when shutting down Abnormal frequency point record sheet in the non-volatile memory medium of the terminal.
13. a kind of terminal characterized by comprising memory and processor；
The memory, for storing one group of code, the processor executes following movement according to the code:
It determines the need for reselecting frequency point and the terminal is presently in whether cell is multifrequency cell；
When determine need to reselect frequency point and determine described in be presently in cell be multifrequency cell when, determine exception frequency point record Disabling frequency point in table, the exception frequency point record sheet are used for the frequency of abnormity of the terminal recording exceptional frequency point, a frequency point Frequency of abnormity refer to that the terminal continually attempts to be communicated with network but not successful number using the frequency point, it is described different Disabling frequency point in normal frequency point record sheet refers to that frequency of abnormity is greater than preset threshold and is marked as disabling time of frequency point and does not surpass Cross the frequency point of disabling duration；
First frequency point is selected in multiple frequency points of the multifrequency cell using preset algorithm, whether judges first frequency point To disable frequency point, if it is not, determining that first frequency point is target frequency point, if so, updating the input of the preset algorithm, and in institute It states in multiple frequency points of multifrequency cell and reselects out the second frequency point, judge whether second frequency point is disabling frequency point, if it is not, Determine that second frequency point is target frequency point, if so, updating the input of the preset algorithm, and in the multiple of the multifrequency cell Frequency point is reselected in frequency point, until determining that the frequency point is target frequency point when the frequency point selected is not disabling frequency point；It is described pre- Imputation method is hash algorithm, and the input of the preset algorithm includes the session seed of the terminal.
14. terminal according to claim 13, which is characterized in that the processor is specifically used for:
Determine whether the system parameters message SPM and the SPM that whether are successfully received network transmission in current frequency point update, if It is that determination needs to reselect frequency point；Determine whether the frequency points carried in the SPM are greater than 1, if so, determining current Locating cell is multifrequency cell.
15. terminal according to claim 14, which is characterized in that the processor is also used to:
When the terminal is unsuccessfully received the SPM that the network sends, the terminal described current in the current frequency point Frequency point failed authentication or the terminal are when the current frequency point link setup fails, however, it is determined that do not wrap in the exception frequency point record sheet When containing the current frequency point, the current frequency point is added to the abnormal frequency point record sheet and by the exception of the current frequency point Number is denoted as 1, however, it is determined that when including the current frequency point in the exception frequency point record sheet, the exception of the current frequency point is secondary Number plus 1；
Judge whether the frequency of abnormity of the current frequency point is greater than preset threshold；
If so, by the current frequency point labeled as disabling frequency point, and continue to use after disabling duration for the current frequency point setting Next frequency point search network in net frequency point list is searched, when the disabling time of the current frequency point reaching disabling duration, by institute Current frequency point is stated to remove from the abnormal frequency point record sheet；
If it is not, continuing using the next frequency point search network searched in net frequency point list.
16. terminal according to claim 14, which is characterized in that the processor is also used to:
Determine whether the negotiation that conversates with the network；
If so, conversate negotiation with the network, after session negotiation success, by the target frequency point from the exception It is removed in frequency point record sheet；
If it is not, the target frequency point is removed from the abnormal frequency point record sheet.
17. terminal according to claim 14, which is characterized in that the processor is also used to:
When the target frequency point and the current frequency point selected are not same frequency point, reconfigure common control channel and Access channel；
After reconfiguring common control channel and access channel success, it is determined whether conversate negotiation with the network；
If so, conversate negotiation with the network, after session negotiation success, by the target frequency point from the exception It is removed in frequency point record sheet；
If it is not, the target frequency point is removed from the abnormal frequency point record sheet.
18. terminal according to claim 13, which is characterized in that the processor is also used to:
When terminal booting, abnormal frequency point record sheet is obtained in the non-volatile memory medium of the terminal, it is described different Before normal frequency point record sheet is this time switched on for the terminal, the terminal last time is stored in the non-easy of the terminal when shutting down Abnormal frequency point record sheet in the property lost storage medium.
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