CN103731904A - Method and device for controlling frequency point search and network side device and terminal - Google Patents
Method and device for controlling frequency point search and network side device and terminal Download PDFInfo
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- CN103731904A CN103731904A CN201210382402.3A CN201210382402A CN103731904A CN 103731904 A CN103731904 A CN 103731904A CN 201210382402 A CN201210382402 A CN 201210382402A CN 103731904 A CN103731904 A CN 103731904A
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Abstract
The embodiment of the invention provides a method and device for controlling frequency point search, a network side device and a terminal thereof. The method for controlling the frequency point search comprises the steps of obtaining a frequency grid fixed parameter when the terminal needs to execute network removing new search processing in network removing in a first mobile network; according to the frequency grid fixed parameter, confirming a network search frequency grid; issuing the network search frequency grid to the terminal, and enabling the terminal to conduct network removing new search in the first mobile network according to the network search frequency grid and the search frequency step length. The method achieves the flexibility of network search frequency grid configuration.
Description
Technical field
The present invention relates to wireless domain, relate in particular to a kind of frequency search control method, device, network equipment and terminal.
Background technology
When multimode terminal enters service connected state under LTE network schemer, due to the incomplete covering that fast mobile terminal goes out LTE coverage or LTE network, terminal can, at former LTE network off-grid, need to heavily be searched and be connected to LTE network or new network by off-grid.Generally, at off-grid, heavily search in process, terminal need to first be carried out the frequency search of LTE network, if search suitable LTE network frequency, attempt access LTE network, otherwise, search for the frequency of other network schemers, attempt access other system (for example TD-SCDMA network) recovery business.
When multimode terminal is after LTE network off-grid, how to carry out the search of LTE network schemer frequency, agreement does not provide clear and definite saying.In prior art, provide following method:
Terminal fixed configurations is searched the frequency grid (as 2MHz) of net, in frequency range, terminal is obtained signal strength signal intensity indication (the Received Signal Strength Indication of the reception of each grid according to frequency grid, RSSI), and successively with configuration the comparison of grid threshold value, if some frequency grid RSSI are larger than grid threshold value, in this frequency grid, according to LTE network minimum frequency space, by frequency, search for LTE network, if less than threshold value, no longer search for any frequency in this frequency grid; To be confirmed cannot being linked into behind LTE community, then initiate new network schemer and rebuild.
In the method, search the frequency grid of net and fix in terminal, cause its flexibility inadequate.For example, when operator adopts a plurality of different frequency range Band under LTE network schemer, different frequency range Band has the frequency of varying number, as Band38 has 500 frequencies, Band39 has 1000 frequencies, for different frequency range Band, the net frequency grid of searching being applicable to may be different, now, due to terminal according to certain frequency range fixed configurations search the frequency grid of net, when the LTE network coverage area of terminal in different with it frequency ranges, its fixing net frequency grid of searching may not be the optimal selection under this frequency range, and can not change.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide a kind of frequency search control method, device, network equipment and terminal, to realize the flexibility of searching the configuration of net frequency grid.
For solving the problems of the technologies described above, the embodiment of the present invention provides scheme as follows:
The embodiment of the present invention provides a kind of frequency search control method of heavily searching process for off-grid, for network equipment, comprising:
At terminal off-grid in the first mobile network, need to carry out off-grid and heavily search while processing, obtain a frequency grid and determine parameter;
According to described frequency grid, determine the definite net frequency grid of searching of parameter;
Described in issuing, search net frequency grid to described terminal, make terminal in described the first mobile network, to carry out off-grid and heavily search according to described net frequency grid and the search rate step-length of searching.
Preferably, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
Preferably, described in, searching net frequency grid issues by system information block message.
Preferably, also comprise:
Determine described search rate step-length;
Issue described search rate step-length to described terminal.
Preferably, described search rate step-length issues by system information block message.
Preferably, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
The embodiment of the present invention also provides another kind of and heavily searches the frequency search control method of process for off-grid, for terminal, comprising:
At described terminal off-grid in the first mobile network, need to carry out off-grid and heavily search while processing, what receive that network side issues one searches net frequency grid, described in search net frequency grid and according to a frequency grid, determine that parameter determines by described network side;
According to described net frequency grid and the search rate step-length of searching, in described the first mobile network, carry out off-grid and heavily search.
Preferably, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
Preferably, described in, searching net frequency grid issues by system information block message.
Preferably, also comprise:
Receive the described search rate step-length that network side issues.
Preferably, search rate step-length issues by system information block message.
Preferably, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
The embodiment of the present invention also provides a kind of frequency search control device of heavily searching process for off-grid, for network equipment, it is characterized in that comprising:
The first acquisition module, heavily searches while processing for carrying out off-grid in terminal at first mobile network's off-grid, obtains a frequency grid and determines parameter;
The first determination module, searches net frequency grid for determining that according to described frequency grid parameter is determined;
First issues module, for searching net frequency grid described in issuing to described terminal, makes terminal in described the first mobile network, to carry out off-grid and heavily search according to described net frequency grid and the search rate step-length of searching.
Preferably, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
Preferably, described in, searching net frequency grid issues by system information block message.
Preferably, also comprise:
The second determination module, for determining described search rate step-length;
Second issues module, for issuing described search rate step-length to described terminal.
Preferably, described search rate step-length issues by system information block message.
Preferably, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
The embodiment of the present invention also provides another kind of and heavily searches the frequency search control device of process for off-grid, for terminal, it is characterized in that, comprising:
The first receiver module, heavily searches while processing for carrying out off-grid in described terminal at first mobile network's off-grid, and what receive that network side issues one searches net frequency grid, described in search net frequency grid and according to a frequency grid, determine that parameter determines by described network side;
Search module, carries out off-grid described the first mobile network and heavily searches for searching net frequency grid and a search rate step-length described in basis.
Preferably, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
Preferably, described in, searching net frequency grid issues by system information block message.
Preferably, also comprise:
The second receiver module, the described search rate step-length issuing for receiving network side.
Preferably, described search rate step-length issues by system information block message.
Preferably, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
The embodiment of the present invention also provides a kind of above-described a kind of network equipment of heavily searching the frequency search control device of process for off-grid that comprises.
The embodiment of the present invention also provides a kind of and comprises that above-described another kind heavily searches the terminal of the frequency search control device of process for off-grid.
From the above, can find out, the embodiment of the present invention at least has following beneficial effect:
By basis, obtain frequency grid and determine that definite the searching under net frequency grid and then general of parameter is dealt into described terminal, make terminal in described the first mobile network, to carry out off-grid and heavily search according to described net frequency grid and the search rate step-length of searching, thereby realized the flexibility of searching the configuration of net frequency grid.
Accompanying drawing explanation
Fig. 1 represents a kind of flow chart of heavily searching the frequency search control method of process for off-grid that the embodiment of the present invention provides;
The flow chart of the preferred embodiment of Fig. 2 represents that the embodiment of the present invention provides a kind of frequency search control method of heavily searching process for off-grid;
Fig. 3 represents that the another kind that the embodiment of the present invention provides heavily searches the flow chart of the frequency search control method of process for off-grid.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawings and the specific embodiments the embodiment of the present invention is described in detail.
Fig. 1 represents a kind of flow chart of heavily searching the frequency search control method of process for off-grid that the embodiment of the present invention provides, and with reference to Fig. 1, described frequency search control method comprises the steps:
Described frequency search control method is for network equipment.
In the specific embodiment of the invention, in terminal, need to carry out off-grid heavily searches while processing, but determine according to current frequency grid that parameter is determined in real time by network side, search net frequency grid, and be handed down to terminal and carry out off-grid and heavily search, so terminal is no longer to search for according to the fixing net frequency grid of searching, improve the flexibility of searching the configuration of net frequency grid, also just improved the flexibility that off-grid is heavily searched.
In the specific embodiment of the invention, need to issue by network side, determined search net frequency grid, and this issuing can issue by the message redefining, but under this mode, need to all make certain change to terminal and network side.
In order to reduce as far as possible the change to network side and terminal, in specific embodiments of the invention, also can directly utilize existing message to carry this and search net frequency grid, as carried this by system information block SIB1 message, search net frequency grid.
In the specific embodiment of the invention, by network side, according to described frequency grid, determine that parameter is determined and search net frequency grid, and how to confirm to search the mode of net frequency grid can be varied, be described as follows.
< mode one >
In mode one, search net frequency grid and set in advance by network side, network side collect frequency grid determine parameter can from a plurality of set in advance search net frequency grid select.
Briefly illustrate as follows.
As set in advance 4 and search net frequency grid, be respectively M1, M2, M3 and M4, M1=1MHz wherein, M2=2MHz, M3=5MHz, M4=10MHz.
And network side determines that parameter can select from M1, M2, M3 and M4 collecting frequency grid.
< mode two >
In mode one, search net frequency grid and set in advance by network side, and in mode two, can be also to determine that according to frequency grid parameter calculates in real time.
Under this mode, searching net frequency grid is the function that frequency grid is determined parameter.
In the specific embodiment of the invention, search net frequency grid and determine that by frequency grid parameter determines.This frequency grid determines that parameter can select according to different strategies, and brief description is as follows.
This frequency grid is determined the requirement of real-time parameter of the business of network performance parameter that band bandwidth, described first mobile network of the frequency range that parameter can be used for searching accuracy parameter, search efficiency parameter, described the first mobile network is current and/or the current use of described terminal.
Operation instruction to above parameter is as follows.
When described searching accuracy parameter characterization searching accuracy is had relatively high expectations, configure the less net frequency grid of searching; Searching accuracy requires when lower, configures the larger net frequency grid of searching; Or,
When described search efficiency parameter characterization search efficiency is higher, configure the larger net frequency grid of searching; When search efficiency is lower, configure the less net frequency grid of searching; Or,
When the band bandwidth of the frequency range of using described the first mobile network is narrower, configuration is less searches net frequency grid, and when wider, configuration is less searches net frequency grid; Or,
When the network performance that characterizes at the current network performance parameter of described the first mobile network is poor, configure the larger net frequency grid of searching; When network performance is better, configure the less net frequency grid of searching; Or,
When the requirement of real-time parameter characterization requirement of real-time of the business of the current use of described terminal is stronger, configure the larger net frequency grid of searching; Characterize requirement of real-time when weak, configure the less net frequency grid of searching.
In specific embodiments of the invention, terminal is carried out the parameter that off-grid heavily searches and is comprised two: search net frequency grid and a search rate step-length.Wherein, this is searched net frequency grid and is determined by network side, and search rate step-length can be the fixed value configuring in terminal.
And in order further to improve the flexibility that off-grid is heavily searched, in specific embodiments of the invention, search rate step-length also can be configured by network side.Under this mode, described frequency search control method can also comprise:
Determine described search rate step-length;
Issue described search rate step-length to described terminal.
And as searched net frequency grid, search rate step-length both can issue by the message of neotectonics, also can issue by SIB1 message.
In specific embodiments of the invention, when search rate step-length is configured by network side, also can arrange according to the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range of searching accuracy parameter, search efficiency parameter, described first mobile network's use and/or the current use of described terminal, at this, not be described in further detail.
In specific embodiments of the invention, search rate step-length also can be considered the centre frequency of the community that the first mobile network uses, that is:
Described search rate step-length can be: the greatest common divisor of all first frequency differences, and wherein, first frequency difference is in described the first mobile network, the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
The preferred embodiment that described the first mobile network of take is below LTE network described frequency search control method as example provides.
The flow chart of the preferred embodiment of Fig. 2 represents that the embodiment of the present invention provides a kind of frequency search control method of heavily searching process for off-grid, with reference to Fig. 2, this preferred embodiment comprises the steps:
Step 201, the frequency grid that net is searched in configuration;
Terminal is resident and enter service connection state under LTE network schemer, LTE network schemer is according to network schemer system bandwidth, configure suitable searching net frequency grid and issue by its broadcast SIB1, thus control terminal search procedure to the corresponding frequency of LTE network schemer when off-grid is rebuild effectively.Frequency grid is configured to fourth gear in advance, is respectively M1, M2, M3 and M4, M1=1MHz wherein, M2=2MHz, M3=5MHz, M4=10MHz.In broadcast SIB1, can represent respectively by 2bit field the fourth gear of frequency grid, wherein 00 represents M1, and 01 represents M2, and 10 represent M3, and 11 represent M4.After system has been determined the frequency grid M that searches net, LTE system bandwidth W is divided into
section, wherein first paragraph to the m-1 section frequency bandwidth is M, and m section frequency bandwidth is W-M* (m-1), and the initial frequency of each frequency range is
The factor that configuration frequency grid need to be considered comprises: accuracy or the efficiency of frequency search; The band bandwidth that LTE system is selected; LTE and other grid situation and loading condition; Type of service that terminal is done.How according to above-mentioned selecting factors frequency grid, to need to consider:
If a) wish to guarantee the accuracy to the search of LTE system frequency, frequency grid that should selection of small, as M1 or M2; If wish, improve the efficiency of LTE system frequency search to have searched for as early as possible LTE frequency, should select larger frequency grid, as M3 or M4;
B) if the band bandwidth that LTE system is selected is narrower, as select Band6, its uplink band scope is 830MHz～840MHz, and 10MHz, can configure less frequency grid, as M1 or M2 altogether; If the frequency range that LTE system is selected is wider, as select Band7, its uplink band scope is 2500MHz～2570MHz, and 70MHz, can configure larger frequency grid, as M3 or M4 altogether;
C), if LTE grid situation is poor or load is heavier, network wishes that partial data business branches to the network of other patterns as early as possible, can configure larger frequency grid, to improve the efficiency of searching net; If LTE grid situation better and load heavy, network wishes that data service carries out at LTE network as far as possible, can configure less frequency grid;
D) very strong if terminal is done business real-time, as QQ Video chat, Fetion Video chat etc., terminal is wished access network as early as possible after LTE off-grid, can configure larger frequency grid, to improve, searches net efficiency; If it is general to interrupt institute's business requirement of real-time of doing, as FTP downloads, Online Video program request etc., can configure compared with small frequency grid, as far as possible again to search LTE network resident.
Above-mentioned a), b), c), d) can consider separately, also can consider based on wherein at least two kinds, concrete implementation has a lot, does not repeat them here.
Step 201+, configuration is suitable search net frequency grid in, configure suitable search rate step-length;
LTE network configuration is suitable search net frequency grid in, configure suitable search rate step-length and issue by its broadcast SIB1, search for all J of a LTE network center frequency point.According to peak frequency grid (10MHz) and minimum search rate interval (100kHz), calculate, in broadcast SIB1, at least need
field represents search rate step-length.Definite mode of search rate step-length for example, can have following sub-step:
Sub-step 1, after step 201, LTE network definite its is searched net frequency grid M, the centre frequency of each community of LTE network
lay respectively at m
jindividual searching in net frequency range, wherein
Sub-step 2, search rate step-length
function g (a wherein
1, a
2, a
3) be a
1/ a
2/ a
3greatest common divisor.
For step 201 and step 201+, the SIB1 field of carrying 2bit frequency grid and 7bit search rate step-length can be as given a definition:
Cellselection-vx::＝SEQUENCE {
frequencygrid ENUMERATED{00，01，10，11}，
frequencysearchstep INTEGER{0，…，127}
}
The IE value * 100kHz of actual value=frequencysearchstep of Frequencysearchstep.
Step 202, terminal is carried out off-grid and is heavily searched;
Terminal is known frequency grid M and the search rate step-length N of LTE network schemer configuration, if it is at former LTE network off-grid, terminal is according to this frequency grid M, first in LTE network schemer frequency range, according to frequency grid, obtain the RSSI of each grid, and successively with configuration the comparison of grid threshold value, if some frequency grid RSSI are larger than grid threshold value, in this frequency grid, according to search rate step-length N, search for former LTE network schemer; If less than threshold value, no longer search for any frequency in this frequency grid of LTE network schemer.
Whether terminal judges can be linked into former network schemer, if there is suitable LTE network schemer community can supply access, priority access is to LTE network schemer; If can, for access, open new network schemer Cell searching without suitable former network schemer community.
For terminal, by TD-LTE network off-grid, rebuild to the situation of TD-SCDMA/WCDMA network, preferably, in step 201, TD-LTE network carries out the frequency grid (being M1, M2, M3 and M4) of frequency search by its SystemInformation message carried terminal to it, specifically can be by the frequency grid information of SIB1 message bearing 2bits, wherein 00 represents M1, and 01 represents M2, and 10 represent M3,11 represent M4, by frequency search step-length the information ([n of SIB1 message bearing 6bits
6n
5n
1]), frequency is shunk step-length N=decimal ([n
6n
5n
1]) * 100kHz, wherein function decimal () represents binary number to be converted into decimal number.
With reference to this preferred embodiment, the advantage of described frequency search control method is at least:
Advantage one, terminal can greatly improve the search efficiency of LTE network frequency after LTE network off-grid is rebuild, for example, suppose that LTE system adopts Band38 frequency range, frequency point ranges is 2570MHz～2620MHz, LTE system bandwidth is 10MHz, LTE community inter-frequency networking, takies frequency and is respectively 2585MHz and 2603MHz.
If adopt traditional LTE network full frequency band method for searching network, need search (2620MHz-2570MHz)/100kHz=500 frequency; If adopt the method for this preferred embodiment, the configurable net frequency grid of searching of LTE network is M
4=10MHz, have 5 sections and search net grid, frequency is that the center frequency point of 2585MHz and 2605MHz lays respectively on second segment and the 4th section of grid, frequency search step-length is N=g (2603MHz-2600MHz, 2585MHz-2580MHz)=1MHz, need altogether 8 frequencies of search, frequency search efficiency has improved 500/8=62.5 doubly.
Advantage two, solved network to terminal in off-grid process of reconstruction to LTE web search without effective control, cause terminal in some situation to search the problem of net overlong time.LTE network schemer dynamic-configuration terminal is searched frequency grid and the frequency search step-length of net, preferential selection, resides on the basis of LTE network schemer, shortens as far as possible LTE network schemer frequency search time.The frequency grid of LTE network schemer dynamic-configuration need to be considered the factors such as frequency range, network condition and offered load that former network schemer is used.For example, former network base station can be by measuring and have former network cell coverage information in advance, in this external fast mobile terminal process, can obtain terminal positional information, when judgement terminal arrives edge, former network cell, consider terminal now the main cause of off-grid be because former network cell signal a little less than, need to be linked into as early as possible Xin community, so network can issue a larger net frequency grid of searching.
Advantage three, provide the method for definite frequency scanning step-length, guaranteed to search the LTE frequency likely existing.
Fig. 3 represents that the another kind that the embodiment of the present invention provides heavily searches the flow chart of the frequency search control method of process for off-grid, and with reference to Fig. 3, described frequency search control method comprises the steps:
Step 302 is carried out off-grid and is heavily searched according to described net frequency grid and the search rate step-length of searching in described the first mobile network.
Described frequency search control method is for terminal.
Visible, by receive that network side issues according to a frequency grid, determine that parameter determines search net frequency grid, according to this, search net frequency grid and a search rate step-length and in the first mobile network, carry out off-grid and heavily search, thereby realized the flexibility of searching the configuration of net frequency grid.
The described net frequency grid of searching can issue by system information block message.
Described frequency grid is determined the requirement of real-time parameter of the business of network performance parameter that band bandwidth, described first mobile network of the frequency range that parameter can be used for searching accuracy parameter, search efficiency parameter, described the first mobile network is current and/or the current use of described terminal.
Described search rate step-length can be the fixed value configuring in terminal; Or in order to support the flexible configuration to described search rate step-length, described frequency search control method can also comprise:
Receive the described search rate step-length that network side issues.
Particularly, described search rate step-length can issue by system information block message.
Described search rate step-length can be: the greatest common divisor of all first frequency differences, and wherein, first frequency difference is in described the first mobile network, the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
About described, according to described frequency grid, determine that definite the determining of net frequency grid and described search rate step-length of searching of parameter can, referring to above in conjunction with the corresponding contents in the description of Fig. 1 and Fig. 2, not repeat them here.
The embodiment of the present invention also provides a kind of frequency search control device of heavily searching process for off-grid, comprising:
The first acquisition module, heavily searches while processing for carrying out off-grid in terminal at first mobile network's off-grid, obtains a frequency grid and determines parameter;
The first determination module, searches net frequency grid for determining that according to described frequency grid parameter is determined;
First issues module, for searching net frequency grid described in issuing to described terminal, makes terminal in described the first mobile network, to carry out off-grid and heavily search according to described net frequency grid and the search rate step-length of searching.
Visible, by the first determination module according to obtain frequency grid determine parameter determine search net frequency grid and then first issue module will under be dealt into described terminal, make terminal in described the first mobile network, to carry out off-grid and heavily search according to described net frequency grid and the search rate step-length of searching, thereby realized the flexibility of searching the configuration of net frequency grid.
Described frequency search control device is for network equipment.
Described frequency grid is determined the requirement of real-time parameter of the business of network performance parameter that band bandwidth, described first mobile network of the frequency range that parameter can be used for searching accuracy parameter, search efficiency parameter, described the first mobile network is current and/or the current use of described terminal.
The described net frequency grid of searching can issue by system information block message.
The described net frequency grid of searching can also comprise:
The second determination module, for determining described search rate step-length;
Second issues module, for issuing described search rate step-length to described terminal.
Described search rate step-length can issue by system information block message.
Described search rate step-length can be: the greatest common divisor of all first frequency differences, and wherein, first frequency difference is in described the first mobile network, the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
The embodiment of the present invention also provides another kind of and heavily searches the frequency search control device of process for off-grid, comprising:
The first receiver module, heavily searches while processing for carrying out off-grid in described terminal at first mobile network's off-grid, and what receive that network side issues one searches net frequency grid, described in search net frequency grid and according to a frequency grid, determine that parameter determines by described network side;
Search module, carries out off-grid described the first mobile network and heavily searches for searching net frequency grid and a search rate step-length described in basis.
Described frequency search control device is for terminal.
Visible, by the first receiver module, receive that network side issues according to a frequency grid, determine that parameter determines search net frequency grid, search module is searched net frequency grid and a search rate step-length according to this and in the first mobile network, is carried out off-grid and heavily search, thereby has realized the flexibility of searching the configuration of net frequency grid.
Described frequency grid is determined the requirement of real-time parameter of the business of network performance parameter that band bandwidth, described first mobile network of the frequency range that parameter can be used for searching accuracy parameter, search efficiency parameter, described the first mobile network is current and/or the current use of described terminal.
The described net frequency grid of searching can issue by system information block message.
Described frequency search control device can also comprise:
The second receiver module, the described search rate step-length issuing for receiving network side.
Described search rate step-length issues by system information block message.
Described search rate step-length can be: the greatest common divisor of all first frequency differences, and wherein, first frequency difference is in described the first mobile network, the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
The embodiment of the present invention also provides a kind of network equipment.Described network equipment comprises above-described a kind of frequency search control device of heavily searching process for off-grid.
The embodiment of the present invention also provides a kind of terminal.Described terminal comprises that above-described another kind heavily searches the frequency search control device of process for off-grid.
The above is only the execution mode of the embodiment of the present invention; should be understood that; for those skilled in the art; do not departing under the prerequisite of embodiment of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection range of the embodiment of the present invention.
Claims (26)
1. for off-grid, heavily search a frequency search control method for process, for network equipment, it is characterized in that comprising:
At terminal off-grid in the first mobile network, need to carry out off-grid and heavily search while processing, obtain a frequency grid and determine parameter;
According to described frequency grid, determine the definite net frequency grid of searching of parameter;
Described in issuing, search net frequency grid to described terminal, make terminal in described the first mobile network, to carry out off-grid and heavily search according to described net frequency grid and the search rate step-length of searching.
2. frequency search control method according to claim 1, it is characterized in that, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
3. frequency search control method according to claim 1, is characterized in that, described in search net frequency grid and issue by system information block message.
4. frequency search control method according to claim 1, is characterized in that, also comprises:
Determine described search rate step-length;
Issue described search rate step-length to described terminal.
5. frequency search control method according to claim 4, is characterized in that, described search rate step-length issues by system information block message.
6. frequency search control method according to claim 4, it is characterized in that, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
7. for off-grid, heavily search a frequency search control method for process, for terminal, it is characterized in that comprising:
At described terminal off-grid in the first mobile network, need to carry out off-grid and heavily search while processing, what receive that network side issues one searches net frequency grid, described in search net frequency grid and according to a frequency grid, determine that parameter determines by described network side;
According to described net frequency grid and the search rate step-length of searching, in described the first mobile network, carry out off-grid and heavily search.
8. frequency search control method according to claim 7, it is characterized in that, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
9. frequency search control method according to claim 7, is characterized in that, described in search net frequency grid and issue by system information block message.
10. frequency search control method according to claim 7, is characterized in that, also comprises:
Receive the described search rate step-length that network side issues.
11. frequency search control methods according to claim 10, is characterized in that, search rate step-length issues by system information block message.
12. frequency search control methods according to claim 10, it is characterized in that, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
13. 1 kinds of frequency search control devices of heavily searching process for off-grid, for network equipment, is characterized in that comprising:
The first acquisition module, heavily searches while processing for carrying out off-grid in terminal at first mobile network's off-grid, obtains a frequency grid and determines parameter;
The first determination module, searches net frequency grid for determining that according to described frequency grid parameter is determined;
First issues module, for searching net frequency grid described in issuing to described terminal, makes terminal in described the first mobile network, to carry out off-grid and heavily search according to described net frequency grid and the search rate step-length of searching.
14. frequency search control devices according to claim 13, it is characterized in that, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
15. frequency search control devices according to claim 13, is characterized in that, described in search net frequency grid and issue by system information block message.
16. frequency search control devices according to claim 13, is characterized in that, also comprise:
The second determination module, for determining described search rate step-length;
Second issues module, for issuing described search rate step-length to described terminal.
17. frequency search control devices according to claim 16, is characterized in that, described search rate step-length issues by system information block message.
18. frequency search control devices according to claim 16, it is characterized in that, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
19. 1 kinds of frequency search control devices of heavily searching process for off-grid, for terminal, is characterized in that, comprising:
The first receiver module, heavily searches while processing for carrying out off-grid in described terminal at first mobile network's off-grid, and what receive that network side issues one searches net frequency grid, described in search net frequency grid and according to a frequency grid, determine that parameter determines by described network side;
Search module, carries out off-grid described the first mobile network and heavily searches for searching net frequency grid and a search rate step-length described in basis.
20. frequency search control devices according to claim 19, it is characterized in that, described frequency grid determines that parameter is the requirement of real-time parameter of the business of the current network performance parameter of band bandwidth, described first mobile network of the frequency range used of searching accuracy parameter, search efficiency parameter, described the first mobile network and/or the current use of described terminal.
21. frequency search control devices according to claim 19, is characterized in that, described in search net frequency grid and issue by system information block message.
22. frequency search control devices according to claim 19, is characterized in that, also comprise:
The second receiver module, the described search rate step-length issuing for receiving network side.
23. frequency search control devices according to claim 22, is characterized in that, described search rate step-length issues by system information block message.
24. frequency search control devices according to claim 22, it is characterized in that, described search rate step-length is: the greatest common divisor of all first frequency differences, wherein, first frequency difference is in described the first mobile network, and the centre frequency of each community deducts the difference of the initial frequency of searching net frequency range at this centre frequency place.
25. 1 kinds of network equipments, comprise the frequency search control device described in any one in claim 13-18.
26. 1 kinds of terminals, comprise the frequency search control device described in any one in claim 19-24.
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