CN110381566A - A kind of small region search method and communication device - Google Patents

A kind of small region search method and communication device Download PDF

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Publication number
CN110381566A
CN110381566A CN201811161363.8A CN201811161363A CN110381566A CN 110381566 A CN110381566 A CN 110381566A CN 201811161363 A CN201811161363 A CN 201811161363A CN 110381566 A CN110381566 A CN 110381566A
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China
Prior art keywords
cell
search
information
value
terminal device
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CN201811161363.8A
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Chinese (zh)
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CN110381566B (en
Inventor
王琪
方平
程勇
夏鹏飞
黄伟
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to US17/040,544 priority Critical patent/US11310729B2/en
Priority to EP19785433.4A priority patent/EP3755065B1/en
Priority to PCT/CN2019/082341 priority patent/WO2019196912A1/en
Publication of CN110381566A publication Critical patent/CN110381566A/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/26—Monitoring; Testing of receivers using historical data, averaging values or statistics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • 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
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • 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
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • 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
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0258—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity controlling an operation mode according to history or models of usage information, e.g. activity schedule or time of day
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A kind of small region search method and communication device, this method comprises: terminal device is before searching for cell, in conjunction with the history access information of other terminal devices the position can be determined with the presence or absence of cell, and the value for searching for the search parameter of cell is adjusted according to definitive result, such as, cell if it exists then can accelerate search by adjusting search parameter；Search parameter can not be searched for or be adjusted to cell if it does not exist, do unnecessary cell searching to reduce terminal device, can reduce the power consumption of terminal device.

Description

A kind of small region search method and communication device
This application claims in submission on April 12nd, 2018 Patent Office of the People's Republic of China, application No. is 201810325541.X, application name Referred to as a kind of priority of the Chinese patent application of " method that terminal executes cell searching ", entire contents are incorporated by reference In this application.
Technical field
This application involves field of communication technology more particularly to a kind of small region search methods and communication device.
Background technique
In the next generation communication system, for example, the 5th third-generation mobile communication (the 5th generation, 5G) system, in order to Guarantee being stably connected between terminal device and core net (such as core net of 5G), the base of a variety of different frequencies can be set It stands, for example, low frequency base station and high frequency base station.Since the coverage area of low frequency base station is greater than high frequency base station, in this way, terminal device exists When core network access, terminal device can be allowed first to access the biggish low frequency base station of a coverage area, to pass through the low frequency base station Basic data service is provided for terminal device.Then, after terminal device searches coverage area lesser high frequency base station, then High frequency base station is switched to by low frequency base station, to obtain better service quality by the lesser high frequency base station of coverage area.
Due to the uncertainty and discontinuity of base station distribution, when terminal device access base station, need repeatedly to search The cell of each base station of rope, not only wastes time, also increases power consumption.
Summary of the invention
The embodiment of the present application provides a kind of small region search method and communication device, and carrying out cell reducing terminal device searches The time of rope and power consumption.
In a first aspect, the embodiment of the present application provides a kind of small region search method, this method comprises: first terminal is at first Before setting search cell, the first information is obtained first, for example, first terminal can be by short-range communication mode, from first end One or more second terminals near end, obtain each second terminal history access information corresponding to the first position, History access information corresponding to the first position indicates the first position with the presence or absence of cell, that is to say, that the first information It may include each second terminal history access information corresponding to the first position；Then, the first terminal is then according to packet The second information for including the first information determines that the first terminal is searched in the value of the search parameter of the first position, and according to this The value of rope parameter searches for cell in the first position.
In the above-mentioned technical solutions, terminal device can connect before searching for cell in conjunction with the history of other terminal devices Enter information to determine that the position adjusts taking for the search parameter for searching for cell with the presence or absence of cell, and according to definitive result Value, for example, cell if it exists, then can accelerate search by adjusting search parameter；Cell if it does not exist, can not search for or Person adjusts search parameter, does unnecessary cell searching to reduce terminal device, can reduce the power consumption of terminal device.
In a kind of possible design, second information further include the first terminal that is stored of the first terminal this History access information corresponding to one position.
In the above-mentioned technical solutions, terminal device can also be determined according to from the history access information in first position First position whether there is cell, for example, when terminal device does not obtain other terminal devices corresponding to the first position History access information, then terminal device, which can be determined according to the history access information certainly in the first position in first position, be No there are cells, alternatively, terminal device can combine other terminal devices history access information corresponding to the first position Determine that with the presence or absence of cell, terminal device is can be improved in the first position together with from the history access information in first position Determine that the first position whether there is the accuracy of cell, so as to improve the robustness of terminal device search cell.
In a kind of possible design, history access information corresponding to the first position may include following four kinds of instructions Any one of information, specifically:
The first, history access information corresponding to the first position includes the first instruction information, the first instruction information Be used to indicate be successfully accessed in the first position/search cell, or, the first instruction information is used to indicate at this first Set accessed not successfully/search cell.
Second, history access information corresponding to the first position includes second indication information, the second indication information It is used to indicate and was successfully accessed/searches cell, and the one or more searched in the first position in the first position Cell.
The third, history access information corresponding to the first position includes third instruction information, which indicates information Be used to indicate and be successfully accessed/search cell in the first position, and be successfully accessed in the first position one or Multiple cells.
4th kind, history access information corresponding to the first position includes the 4th instruction information, the 4th instruction information It is used to indicate and was successfully accessed/searches cell in the first position, and be successfully accessed/search in the first position The relevant information of one or more cells and the one or more cells for being successfully accessed/searching, the correlation of the cell Information includes the carrier frequency of cell.
In the above-mentioned technical solutions, it can indicate that the first position with the presence or absence of cell, can increase in several ways The flexibility of terminal device search cell.
In a kind of possible design, which includes searching carrier frequency parameter, shift in position threshold parameter, most Big search at least one of count parameter and search period parameters, the first terminal is according to the searching carrier frequency parameter Value search cell；The first terminal a location finding cell number be equal to the maximum search count parameter value when, The first terminal determines is not present cell in the position；When the first terminal be subjected to displacement and displacement more than or equal to the position become When the value of dynamic threshold parameter, position of the first terminal after displacement re-searches for cell and again time of statistics search cell Number；The first terminal is in a location finding cell, at the time of preceding primary search terminates and at the time of search beginning next time Between time interval be the search period parameters value.
In the above-mentioned technical solutions, four kinds are provided for searching for the search parameter of cell, in the embodiment of the present application not It is limited to above-mentioned four kinds of search parameters.
In a kind of possible design, which adjusts small for searching in the first position according to second information The value of one or more search parameters in the search parameter in area is joined to obtain the first terminal in the search of the first position Several values.
In the above-mentioned technical solutions, the value for the search parameter for being used to carry out cell searching due to terminal device is that basis should Second information value adjusted, therefore, terminal device can according to the actual conditions for the cell that the first position is distributed come Carry out cell searching, it is possible to reduce terminal device does the case where unnecessary cell searching, can reduce the power consumption of terminal device.
In a kind of possible design, when second information indicates the first position there are when cell, which subtracts The value of search period parameters in the small search parameter, and/or, increase the maximum search count parameter in the search parameter Value, to obtain the first search parameter value, first search parameter value, that is, first terminal determines the search in the first position The value of parameter.
In the above-mentioned technical solutions, when the second information indicates the first position there are cell, terminal device, which can reduce, to be searched The value of search period parameters in rope parameter, so as to the speed of increasing terminal equipment search cell, it is possible to reduce search The time of cell.And/or terminal device can increase the value of the maximum search count parameter in search parameter, so as to Make terminal device there is the position of cell more frequently to be searched in determination, the success rate of search cell can be improved.
In a kind of possible design, if access reference information corresponding to the first position includes the 4th instruction information, 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and in first position success Accessed the related letter of/the one or more cells searched and this be successfully accessed/one or more cells searched Breath, the relevant information of the cell includes the carrier frequency of cell, then when second information indicate the first position there are when cell, The value for the searching carrier frequency parameter for including in the search parameter can be adjusted to the 4th instruction information by the first terminal The value of the carrier frequency of the indicated one or more cells for being successfully accessed/searching in the first position, thus To the first search parameter value, first search parameter value, that is, first terminal determines the value in the search parameter of the first position.
In the above-mentioned technical solutions, when the 4th instruction information instruction in the first position was successfully accessed/searched cell, I.e. there are cells for first position, and terminal device can be informed in the carrier wave that the first position was successfully accessed/searched cell When frequency, terminal device the value of searching carrier frequency parameter can be adjusted to one that this was successfully accessed/searches or The value of the carrier frequency of multiple cells can so as to so that terminal device quickly navigates to the carrier frequency where the cell To save the time scanned in multiple carrier frequencies.
In a kind of possible design, if access reference information corresponding to the first position includes the 4th instruction information, 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and in first position success Accessed the related letter of/the one or more cells searched and this be successfully accessed/one or more cells searched Breath, the relevant information of the cell includes the carrier frequency of cell, then when second information indicates to be successfully accessed in the first position The value of the carrier frequency for the first community crossed/searched is greater than or equal to the first preset value, which can reduce this The value of shift in position threshold value in search parameter.
In the above-mentioned technical solutions, it is contemplated that coverage area is smaller when frequency is higher, thus when the 4th instruction information instruction First position was successfully accessed/searched cell, i.e., there are cells for the first position, and terminal device is determined in the first position When being successfully accessed/searched the carrier frequency of cell more than or equal to the first preset value, it is believed that deposited in the first position Cell be high frequency cell, so as to use lesser shift in position threshold search cell, can be improved and search cell Success rate.
In a kind of possible design, if access reference information corresponding to the first position includes the 4th instruction information, 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and in first position success Accessed the related letter of/the one or more cells searched and this be successfully accessed/one or more cells searched Breath, the relevant information of the cell includes the carrier frequency of cell, then when second information indicates to be successfully accessed in the first position For the value of the carrier frequency for the first community crossed/searched less than the second preset value, which can increase search ginseng The value of shift in position threshold value in number.
In the above-mentioned technical solutions, it is contemplated that coverage area is bigger when frequency is lower, thus when the 4th instruction information instruction First position was successfully accessed/searched cell, i.e., there are cells for the first position, and terminal device is determined in the first position When being successfully accessed/searched the carrier frequency of cell less than the second preset value, it is believed that small existing for the first position Area is low frequency cell, so as to use biggish shift in position threshold search cell, can shorten the time of search cell.
In a kind of possible design, when second information indicates that cell is not present in the first position, the first terminal Increase the value of the search period parameters in multiple search parameter, and/or, reduce the maximum search in multiple search parameter The value of count parameter, with determine the first terminal the search parameter of the first position value be the second search parameter Value.
In the above-mentioned technical solutions, when cell is not present in second information instruction first position, then terminal device can increase The value of search period parameters in big search parameter, so as to reduce the time of search cell, and/or, terminal device can To reduce the value of the maximum search count parameter in search parameter, so as to so that terminal device is being instructed to not no cell Position only carries out the search of a small amount of number, can save the energy consumption of terminal device.
In a kind of possible design, after searching for cell according to the value of the search parameter, first terminal broadcast And/or storage search result, the search result are used to indicate the information for the cell for being successfully accessed/searching in the first position Or the search result is used to indicate and does not search cell in the first position.
In the above-mentioned technical solutions, terminal device can broadcast the search result in the first position, to work as other ends When end equipment needs to carry out cell searching in the first position, other terminal devices can be assisted at this according to the search result Cell quickly and using lower energy consumption is searched in first position, and terminal device can store the search result in the first position, So as to which the value of search parameter is determined when the first position carries out cell searching convenient for terminal device next time.
Second aspect, the embodiment of the present application provide a kind of communication device, and the communication device includes processor, for realizing The method of above-mentioned first aspect description.The communication device can also include memory, for storing program instruction and data.Institute Memory to be stated to couple with the processor, the processor can call and execute the program instruction stored in the memory, For realizing in any one method in the method for above-mentioned first aspect description.The communication device can also include transmitting-receiving Device, the transceiver are communicated for the communication device with other equipment.Illustratively, which is second terminal.
In a kind of possible design, the communication device processor and transceiver, in which:
Before the transceiver searches for cell in first position, the first information is obtained, the first information includes passing through low coverage From communication mode near the communication device one or more second terminals obtain each second terminal described first Whether history access information corresponding to position, history access information corresponding to the first position indicate the first position There are cells；
The processor according to the second information determine the communication device in the value of the search parameter of the first position, Second information includes the first information；
The transceiver searches for cell in the first position, according to the value of described search parameter.
In a kind of possible design, second information further includes the communication device that the communication device is stored The history access information corresponding to the first position.
In a kind of possible design, history access information corresponding to the first position includes the first instruction information, The first instruction information be used to indicate be successfully accessed in the first position/search cell, or, the first instruction letter Breath be used to indicate accessed not successfully in the first position/search cell.
In a kind of possible design, history access information corresponding to the first position includes second indication information, The second indication information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set the one or more cells searched.
In a kind of possible design, history access information corresponding to the first position includes third instruction information, The third instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set the one or more cells being successfully accessed.
In a kind of possible design, history access information corresponding to the first position includes the 4th instruction information, The 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set and be successfully accessed/one or more cells for searching and described be successfully accessed/one or more cells searched Relevant information, the relevant information of the cell includes the carrier frequency of cell.
In a kind of possible design, described search parameter include searching carrier frequency parameter, shift in position threshold parameter, At least one of maximum search count parameter and search period parameters, the transceiver are joined according to described search carrier frequency Several values searches for cell；The transceiver is equal to taking for the maximum search count parameter in the number of a location finding cell When value, the processor, which is determined, is not present cell in the position；When the communication device be subjected to displacement and displacement be greater than etc. When the value of the shift in position threshold parameter, position of the transceiver after displacement re-searches for cell and counts again Search for the number of cell；The transceiver is searched at the time of preceding primary search terminates and next time in a location finding cell Time interval between at the time of rope starts is the value of described search cycle parameter.
In a kind of possible design, the processor determines the communication device described according to second information The value of the search parameter of one position, comprising:
The processor is adjusted according to second information in the search parameter of first position search cell The value of one or more search parameters obtains the communication device in the value of the search parameter of the first position.
In a kind of possible design, the processor determines the communication device described according to second information The value of the search parameter of one position, comprising:
When second information indicates the first position there are when cell, the processor is determined in the first position Search parameter value be the first search parameter value；
The processor determines that in the value of the search parameter of the first position be described in the first search parameter value includes: Processor reduces the value of the search period parameters in described search parameter, and/or, increase most wantonly searching in described search parameter The value of rope count parameter.
In a kind of possible design, access reference information corresponding to the first position includes the 4th instruction information, The 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set and be successfully accessed/one or more cells for searching and described be successfully accessed/one or more cells searched Relevant information, the relevant information of the cell includes the carrier frequency of cell；
The processor adjusts the value of one or more search parameters in described search parameter according to second information, Include:
When second information indicates the first position there are when cell, the processor is determined in the first position Search parameter value be the first search parameter value；
It is that the first search parameter value includes: that the processor, which is determined in the value of the search parameter of the first position,
The value for the searching carrier frequency parameter for including in described search parameter is adjusted to the described 4th by the processor Indicate taking for the carrier frequency for the one or more cells for being successfully accessed/searching in the first position indicated by information Value.
In a kind of possible design, access reference information corresponding to the first position includes the 4th instruction information, The 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set and be successfully accessed/one or more cells for searching and described be successfully accessed/one or more cells searched Relevant information, the relevant information of the cell includes the carrier frequency of cell；
The processor adjusts the value of one or more search parameters in described search parameter according to second information, Include:
When the carrier frequency for the first community that second information instruction was successfully accessed/searches in the first position Value be greater than or equal to the first preset value, then the processor reduces taking for the shift in position threshold value in described search parameter Value；Or
When the carrier frequency for the first community that second information instruction was successfully accessed/searches in the first position Value less than the second preset value, then the processor increases the value of the shift in position threshold value in described search parameter.
In a kind of possible design, the processor determines the communication device at described first according to the second information The value for the search parameter set, comprising:
When second information indicates that cell is not present in the first position, the processor increases the multiple search The value of search period parameters in parameter, and/or, reduce taking for the maximum search count parameter in the multiple search parameter Value, with determine the communication device the search parameter of the first position value be the second search parameter value.
In a kind of possible design, the transceiver is also used to:
After searching for cell according to the value of described search parameter, broadcasts and/or deposit under the control of the processor Store up search result, described search result be used to indicate the cell for being successfully accessed/searching in the first position information or Described search result, which is used to indicate, does not search cell in the first position.
The third aspect, the embodiment of the present application provide a kind of communication device, which can be terminal, are also possible to end Device in end, the communication device may include processing module and transceiver module, these modules can execute above-mentioned first aspect Corresponding function performed by first terminal in any design example, specific:
The transceiver module, for before cell is searched in first position, obtaining the first information, the first information includes logical Short-range communication mode is crossed from each second terminal of one or more second terminals acquisition near the communication device in institute History access information corresponding to first position is stated, history access information corresponding to the first position indicates described first It sets with the presence or absence of cell；
The processing module, for determining the communication device in the search parameter of the first position according to the second information Value, second information includes the first information；
The transceiver module, is also used in the first position, searches for cell according to the value of described search parameter.
In a kind of possible design, second information further includes the communication device that the communication device is stored The history access information corresponding to the first position.
In a kind of possible design, history access information corresponding to the first position includes the first instruction information, The first instruction information be used to indicate be successfully accessed in the first position/search cell, or, the first instruction letter Breath be used to indicate accessed not successfully in the first position/search cell.
In a kind of possible design, history access information corresponding to the first position includes second indication information, The second indication information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set the one or more cells searched.
In a kind of possible design, history access information corresponding to the first position includes third instruction information, The third instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set the one or more cells being successfully accessed.
In a kind of possible design, history access information corresponding to the first position includes the 4th instruction information, The 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set and be successfully accessed/one or more cells for searching and described be successfully accessed/one or more cells searched Relevant information, the relevant information of the cell includes the carrier frequency of cell.
In a kind of possible design, described search parameter include searching carrier frequency parameter, shift in position threshold parameter, At least one of maximum search count parameter and search period parameters, the transceiver module is according to described search carrier frequency The value of parameter searches for cell；The transceiver module is equal to the maximum search count parameter in the number of a location finding cell Value when, the processing module, which is determined, is not present cell in the position；When the communication device is subjected to displacement and displacement More than or equal to the shift in position threshold parameter value when, position of the transceiver module after displacement re-searches for cell simultaneously Again the number of statistics search cell；The transceiver module is in a location finding cell, at the time of preceding primary search terminates Time interval between at the time of search starts next time is the value of described search cycle parameter.
In a kind of possible design, the processing module determines the communication device described according to second information The value of the search parameter of first position includes:
The processing module is adjusted according to second information for the search parameter in first position search cell The value of middle one or more search parameter, obtains the communication device in the value of the search parameter of the first position.
In a kind of possible design, the processing module determines the communication device described according to second information The value of the search parameter of first position includes:
When second information indicates the first position there are when cell, the processing module is determined at described first The value for the search parameter set is the first search parameter value；
It is that the first search parameter value includes: that the processing module, which is determined in the value of the search parameter of the first position,
The processing module reduces the value of the search period parameters in described search parameter, and/or, increase described search The value of maximum search count parameter in parameter.
In a kind of possible design, access reference information corresponding to the first position includes the 4th instruction information, The 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set and be successfully accessed/one or more cells for searching and described be successfully accessed/one or more cells searched Relevant information, the relevant information of the cell includes the carrier frequency of cell；
The processing module adjusts taking for one or more search parameters in described search parameter according to second information Value, comprising:
When second information indicates the first position there are when cell, the processing module is determined at described first The value for the search parameter set is the first search parameter value；
It is that the first search parameter value includes: that the processing module, which is determined in the value of the search parameter of the first position,
The value for the searching carrier frequency parameter for including in described search parameter is adjusted to described by the processing module The carrier frequency for the one or more cells for being successfully accessed/searching in the first position indicated by four instruction information Value.
In a kind of possible design, access reference information corresponding to the first position includes the 4th instruction information, The 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, and at described first Set and be successfully accessed/one or more cells for searching and described be successfully accessed/one or more cells searched Relevant information, the relevant information of the cell includes the carrier frequency of cell；
The processing module adjusts taking for one or more search parameters in described search parameter according to second information Value, comprising:
When the carrier frequency for the first community that second information instruction was successfully accessed/searches in the first position Value be greater than or equal to the first preset value, then the processing module reduces taking for the shift in position threshold value in described search parameter Value；Or
When the carrier frequency for the first community that second information instruction was successfully accessed/searches in the first position Value less than the second preset value, then the processing module increases the value of the shift in position threshold value in described search parameter.
In a kind of possible design, the processing module determines the communication device described first according to the second information The value of the search parameter of position, comprising:
When second information indicates that cell is not present in the first position, the processing module increases the multiple search The value of search period parameters in rope parameter, and/or, reduce the maximum search count parameter in the multiple search parameter Value, with determine the communication device the search parameter of the first position value be the second search parameter value.
In a kind of possible design, the transceiver module is also used to:
After searching for cell according to the value of described search parameter, broadcast and/or storage search result, described search knot Fruit is used to indicate the information for the cell for being successfully accessed/searching in the first position or described search result is used to indicate The first position does not search cell.
Fourth aspect also provides a kind of computer readable storage medium, including instruction in the embodiment of the present application, when it is being counted When being run on calculation machine, so that computer executes method described in first aspect.
In terms of 5th, a kind of computer program product, including instruction are also provided in the embodiment of the present application, when it is in computer When upper operation, so that computer executes method described in first aspect.
6th aspect, the embodiment of the present application provide a kind of chip system, which includes processor, can also be wrapped Memory is included, the chip system is for realizing method described in first aspect.The chip system can be made of chip, can also be with Include chip and other discrete devices.
The beneficial effect of above-mentioned second aspect to the 6th aspect and its implementation can be in the method for reference pair first aspect And its description of the beneficial effect of implementation.
Embodiment provided by the present application further include it is following any one (this part provide each embodiment number and herein its The number of each embodiment of his part has no specific corresponding relationship, only for convenience of this part in statement):
1. a kind of method of cell searching is applied to user equipment (UE) characterized by comprising
UE joins according to the history access information of other UE data shared and UE self record to adjust the search of cell Number, described search parameter include the searching carrier frequency of UE, the shift in position threshold X of UE, and the period Y of cell search is slight The maximum search number Z in area.
The cell can be the 5G cell when base station 4G and 5G coexists, and is also possible to 5G low frequency and high frequency base station coexists When high frequency cell.
2. according to method described in embodiment 1, which is characterized in that
It is pre-configured with the searching carrier frequency f of UE, shift in position threshold X, the period Y of cell search, cell is most Big searching times Z.
Wherein shift in position threshold X can be related with the carrier frequency scanned for.
3. according to method described in embodiment 1, which is characterized in that
The data that other UE share may include whether that there are cells, and in the presence of cell the letter such as carrier frequency Breath, the sharing mode of other UE can be D2D communication, the modes such as WiFi or bluetooth.The location information acquisition of UE can pass through GPS, macro base station positioning, accelerometer and direction sensor etc..
4. according to method described in embodiment 1, which is characterized in that
The history access information of UE self record may include carrier frequency, location information, the physical area mark of macro base station Know (PCI) etc..
The macro base station can be the base station 4G when the base station 4G and 5G coexists, and is also possible to 5G low frequency and high frequency base station coexists When low frequency base station.
5. according to any method of embodiment 1-4, which is characterized in that
If the data that other UE share, which are shown nearby, cell, or is not received by the data of other UE, but UE The historical data of record, which is shown nearby, cell, then reduces the search cycle Y of cell, improves maximum search number Z.
6. according to any method of embodiment 1-4, which is characterized in that if the historical data of UE record or other UE The carrier frequency of cell is further comprised in the data of sharing, then sets the frequency for the carrier frequency of cell search, and Configure corresponding shift in position threshold X.
7. according to any method of embodiment 1-4, which is characterized in that
If the data that other UE share are shown nearby without cell, or are not received by the data of other UE, but The historical data of UE record is shown nearby without cell, then improves the search cycle Y of cell, reduce maximum search number Z.
8. according to any method of embodiment 1-7, which is characterized in that
It is mobile that UE monitors its position, if the shift in position of UE is less than preset threshold X, and attempts Z times after searching for still Cell can not be so searched, then stops the search of cell；It, will if the shift in position of UE is greater than preset threshold X Searching times counting resets to 0, comes back to step 1.
9. the method according to embodiment 1 or 3, which is characterized in that
Whether UE shares its access information is determined by UE itself, can be according to the setting of user, the letter such as remaining capacity of UE Breath is judged.
For example, then stopping shared when user closes the function.If the electricity of UE is lower, it can also stop sharing.
10. the method according to embodiment 1 or 4, which is characterized in that
The history access information storage of UE can also be determined according to their own, if the sky of UE storage history access information storage Between expired, then it is contemplated that deleting earliest access data, or delete least common access data.
Detailed description of the invention
Figure 1A is a kind of structural schematic diagram of the communication system provided in the embodiment of the present application；
Figure 1B is the structural schematic diagram of another communication system provided in the embodiment of the present application；
Fig. 2 is the schematic diagram that terminal device carries out cell searching in the prior art；
Fig. 3 is a kind of flow chart of the small region search method provided in the embodiment of the present application；
Fig. 4 A is a kind of schematic diagram of log history access information in the embodiment of the present application；
Fig. 4 B is another schematic diagram of log history access information in the embodiment of the present application；
Fig. 5 A is another schematic diagram of log history access information in the embodiment of the present application；
Fig. 5 B is another schematic diagram of log history access information in the embodiment of the present application；
Fig. 5 C is in the embodiment of the present application The schematic diagram of the information of multiple cells；
Fig. 6 A is terminal device A, terminal device B and a kind of positional diagram of terminal device C in the embodiment of the present application；
Fig. 6 B is terminal device A, terminal device B and the signal of terminal device C another kind positional relationship in the embodiment of the present application Figure；
Fig. 7 is the flow chart of another small region search method provided in the embodiment of the present application；
Fig. 8 is the flow chart of another small region search method provided in the embodiment of the present application；
Fig. 9 is a kind of structural schematic diagram of the communication device provided in the embodiment of the present application；
Figure 10 is the structural schematic diagram of another communication device provided in the embodiment of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description.
The technical solution of the embodiment of the present application can be applied to various wireless access technologys (radio access Technology, RAT) system, such as new wireless (new radio, NR) system, WIFI, worldwide interoperability for microwave accesses (worldwide interoperability for microwave access, WiMAX), long term evolution (long term Evolution, LTE) it is system, advanced long term evolution (advanced long term evolution, LTE-A) system, logical With mobile communication system (universal mobile telecommunication system, UMTS), third generation affiliate It is mobile logical to plan (the 3rd generation partnership project, 3GPP) relevant cellular system, forth generation Letter technology (4th generation, 4G) system or 5G system etc..
In addition, the communication system can be applicable to the communication technology to face the future, the embodiment of the present application description is System is the technical solution in order to more clearly illustrate the embodiment of the present application, is not constituted for skill provided by the embodiments of the present application The restriction of art scheme, those of ordinary skill in the art it is found that with the network architecture differentiation, technology provided by the embodiments of the present application Scheme is equally applicable for similar technical problem.
It briefly introduces below to the application scenarios of the embodiment of the present application.
Figure 1A is please referred to, is a kind of schematic diagram of communication system provided by the embodiments of the present application.Communication as shown in Figure 1A System includes a network equipment and multiple terminal devices, and the corresponding overlay area of the network equipment is cell A, multiple terminal Equipment is respectively terminal device A, terminal device B and terminal device C, and multiple terminal device can be the end directly communicated End equipment, for example, it may be the terminal device for device-to-device (device-to-device, D2D) communication, can be use In the terminal device that vehicle is communicated to all (vehicle to everything, V2X), it is of course also possible to be logical using other The terminal device for believing technical communication, for example, it may be using bluetooth or Wireless Fidelity (wireless-fldelity, WIFI) The terminal device of technology is also possible to that direct communication between terminal device can be made using other in following communication technology Technology, in the embodiment of the present application with no restriction.Multiple terminal device can also carry out cellular communication with the network equipment.Example Such as, the network equipment can send downlink information to terminal device A, terminal device B and terminal device C, and terminal device A, terminal are set Standby B and terminal device C can also send uplink information to the network equipment.
Unlike Figure 1A, in the communication system shown in Figure 1B, including multiple network equipments.Multiple network equipment It may include network equipment A, network equipment B and network equipment C, the corresponding overlay area network equipment A is cell A, network The corresponding overlay area equipment B is cell B, and the corresponding overlay area network equipment C is cell C, and the coverage area of cell A is big In the coverage area of cell B or cell C, cell A can be known as macrocell A, cell B and cell C be referred to as cell m and Cell n.Any one terminal device in multiple terminal device can be with network equipment A, network equipment B and the network equipment C is communicated.By taking terminal device A as an example, when terminal device A enters macrocell A, it can be communicated with network equipment A；When It, then can be to network equipment B initiating random access procedure, thus by the network equipment of access when terminal device A enters cell m Network equipment B is switched to by network equipment A, to be communicated with network equipment B.Any two in multiple terminal device Terminal device can also be communicated directly, and specific communication mode is identical with Figure 1A, and details are not described herein.
The network equipment involved in the embodiment of the present application can be access network equipment, such as base station (base Station, BS), transmit receiving point (transmission reception point, TRP), evolved node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base Station control (base station controller, BSC), base transceiver station (base transceiver station, BTS), Base Band Unit (base band unit, BBU) or Wireless Fidelity (wireless fidelity, Wifi) access point (access point, AP), relaying (relay nodes, RN) equipment etc., is also possible to refer to the accession in net in the (air that eats dishes without rice or wine Interface pass through the equipment of one or more cells and terminal equipment in communication on).The network equipment can be used for the sky that will be received Mouth frame and Internet protocol (internet protocol, IP) grouping are mutually converted, and are netted as terminal device and access Router between rest part, wherein the rest part for accessing net may include IP network.The network equipment also tunable is to sky The attribute management of mouth.If the network equipment is base station, which can be macro base station, micro-base station, femto base station, small station, relaying It stands, for example, it may be including the evolved base station in LTE system or the LTE system (LTE-advanced, LTE-A) of evolution (nodeB or evolved node B or evolutional node B), or also may include the next-generation section in 5G system Point B (next generation node B, gNB), the embodiment of the present application does not limit.In the embodiment of the present application, network is realized The device of the function of equipment can be the network equipment, be also possible to support that the network equipment realizes the device of the function, such as chip, Circuit or other devices.
The invention relates to terminal device can also be known as terminal, can be a kind of has radio transmission-receiving function Equipment, land can be deployed in, including indoor or outdoors, hand-held or vehicle-mounted；(such as steamer can also be deployed on the water surface Deng)；It can also dispose in the sky (such as on aircraft, balloon and satellite etc.).Terminal device can be user equipment (user Equipment, UE).Wherein, UE includes the handheld device with wireless communication function, mobile unit, wearable device or meter Calculate equipment.Illustratively, UE can be mobile phone (mobile phone), tablet computer or the computer with radio transmission-receiving function.Eventually End equipment can also be virtual reality (virtual reality, VR) terminal device, augmented reality (augmented Reality, AR) terminal device, the wireless terminal in Industry Control, it is unmanned in wireless terminal, the nothing in tele-medicine The wireless terminal in wireless terminal, smart city (smart city), wisdom family (smart in line terminal, smart grid Home wireless terminal in) etc..In the embodiment of the present application, realizes that the device of the function of terminal can be terminal, be also possible to Terminal is supported to realize the device of the function, such as chip, circuit or other devices.
It should be noted that the number of the network equipment included in communication system shown in Figure 1A and Figure 1B and terminal device Amount and type are only a kind of citing, and the embodiment of the present application is also not restricted to this.For example, leading to applied by the embodiment of the present application It can also include more network equipments, or the terminal device comprising can more be communicated with the network equipment in letter system Deng, be concise description, do not show one by one in the accompanying drawings.In addition, in the communication system shown in Figure 1A and Figure 1B, although showing The network equipment and terminal device, but can be not limited to include the network equipment and terminal device in the communication system, for example, also It may include equipment of the core network or the equipment etc. for carrying virtualization network function, these are for those of ordinary skill in the art For be it will be apparent that not being described in detail one by one herein.
In the embodiment of the present application, term " system " and " network " in the embodiment of the present application can be used interchangeably.It is multiple can Be two, three or more, the embodiment of the present application is with no restrictions.Positive integer can be one or more.
In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist Three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Separately Outside, character "/" herein typicallys represent the relationship that forward-backward correlation object is a kind of "or" unless otherwise specified.
Unless indicated to the contrary, the embodiment of the present application refers to ordinal numbers such as " first ", " second ", " third " and " the 4th " Word is not used in sequence, timing, priority or the significance level for limiting multiple objects for distinguishing to multiple objects.
In the following, introducing the process of terminal equipment access network equipment in the prior art with communication system shown in Figure 1B.
Referring to FIG. 2, after terminal device X, terminal device Y and terminal device Z are powered on, terminal device X, terminal device Y It can be respectively according to preset search parameter, for example, searching carrier frequency parameter, shift in position threshold parameter, most with terminal device Z Big search count parameter and search period parameters, carry out cell searching.By taking terminal device X as an example, when terminal device X is in position After a is powered on, then according to preset searching carrier frequency and search cycle, the reference letter of the cell of network equipment broadcast is detected Number, and searching times are counted.For example, preset searching carrier frequency is carrier frequency 1, carrier frequency 2 and carrier wave Frequency 3, then terminal device X searches for the reference signal of cell in these three carrier frequencies respectively.Assuming that the carrier frequency of macrocell A Rate is carrier frequency 2, at this point, being located in the coverage area of the network equipment 1 due to position a, then when terminal device X is in carrier frequency When searching for the reference signal of cell on 2, the reference signal for the macrocell A that the network equipment 1 is broadcasted can be detected, then, terminal is set Reference Signal Received Power (the reference signal receiving of the reference signal for the macrocell A that standby X measurement searches Power, RSRP) or Reference Signal Received Quality (reference signal receiving quality, RSRQ), if really When the RSRP measured value or RSRQ measured value for determining the reference signal of macrocell A are greater than or equal to preset threshold, then to macro small with this Corresponding 1 initiating random access procedure of the network equipment of area A, to access the network equipment 1.
When terminal device X is constantly moved, for example, when terminal device X is moved to position b by position a, terminal device X is determined Mobile position reaches preset shift in position threshold value, then carries out cell searching according to preset search parameter again, and again Searching times are counted.Since position b does not have the MPS process of the network equipment, when terminal device X is determined in position When the searching times of b reach preset maximum search number, then stop the process that b in the position carries out cell searching.Then, eventually End equipment X is moved again, such as is moved to position c by position b, and terminal device X determines that mobile position is more than preset Shift in position threshold value, then terminal device X carries out cell searching according to preset searching carrier frequency again.Assuming that cell m Carrier frequency is carrier frequency 3, at this point, being located in the coverage area of the network equipment 2 due to position c, then when terminal device X is being carried When searching for the reference signal of cell in wave frequency rate 3, the reference signal for the cell m that the network equipment 2 is broadcasted can be detected, then, Terminal device X determines that the RSRP measured value of cell m or RSRQ measured value are greater than or equal to the threshold value, then terminal device X is to net 2 initiating random access procedure of network equipment is communicated to switch to the network equipment 2 by the network equipment 2.
By above-mentioned cell search process it is found that due to uncertainty and discontinuity that the network equipment is distributed, work as end When end equipment access network device, need repeatedly to search for the cell of each network equipment, such as macro according to preset search parameter Cell or cell, not only waste time, and also increase power consumption.
In consideration of it, the embodiment of the present application provides a kind of small region search method, cell searching is carried out to reduce terminal device Time and power consumption.
Technical solution provided by the embodiments of the present application is introduced with reference to the accompanying drawing.
Referring to FIG. 3, a kind of flow chart of the small region search method provided for one embodiment of the application.In following introduction In the process, it is applied in the application scenarios shown in Figure 1B with technical solution provided by the embodiments of the present application, and shown in Figure 1B The cell search process of one of terminal device in communication system, (herein also referred to as for example, terminal device X One terminal) cell search process for, be illustrated.The flow chart of this method is described as follows:
Step 301, other terminal devices near first position generate history access information.
Other terminal devices near first position are also referred to as second terminal, the second terminal in this application There can be one or more.
When other terminal devices after the power-up, can according to preset search parameter carry out cell searching, specifically search for Journey is identical as method shown in Fig. 2, and details are not described herein.After other terminal devices carry out cell searching, then other terminals Equipment can generate history access information.In the embodiment of the present application, other terminal devices are to remove in application scenarios shown in Figure 1B Terminal device except terminal device X, for example, terminal device Y or terminal device Z.
By taking other terminal devices are terminal device Y as an example, the history access information of terminal device Y may include following several Form:
The first form:
In the history access information of terminal device Y only comprising being successfully accessed the network equipment/search cell when terminal device Y The location information at place.
As an example, terminal device Y is in the failed access network device of position d, and in position, e is connect by macrocell A Enter the network equipment 1, f then only includes in the history access information of terminal device Y by cell n access network device 3 in position The information of position e and the information of position f.
Second of form:
Terminal device Y institute when in the history access information of terminal device Y comprising being successfully accessed the network equipment/search cell Location information and it is corresponding with the location information be successfully accessed/relevant information of cell that searches.
As an example, terminal device Y is in the failed access network device of position d, and in position, e is connect by macrocell A Enter the network equipment 1, f then includes position in the history access information of terminal device Y by cell n access network device 3 in position The carrier frequency of the information for setting e, the reference signal of macrocell A corresponding with position e is small for the physics of carrier wave 3 and/or macrocell A It is PCI2, the information of position f, and cell n corresponding with position f that area, which identifies (physical cell identity, PCI), The carrier frequency of reference signal be the PCI of carrier wave 4 and/or cell n be PCI4.
The third form:
In the history access information of terminal device Y comprising all positions for carrying out cell searching information and with it is each The corresponding access situation in position.
As an example, terminal device Y is in the failed access network device of position d, and in position, e is connect by macrocell A Enter the network equipment 1, f is by cell n access network device 3 in position, then the history access information of terminal device Y can be to retouch State the form record of file: position d is accessed not successfully, and position e is successfully accessed, and position f is successfully accessed, as shown in Figure 4 A.
The history access information can also be presented in table form, and as shown in Figure 4 B, which is divided into two Column, first row are used to record the information of each position for carrying out cell searching, and secondary series is for recording when terminal device Y is located at Whether the network equipment is successfully accessed when the position.For secondary series, terminal device can be indicated with "Yes" or "No", can also be made It is indicated with the bit value of default agreement, for example, indicating that terminal device Y is successfully accessed in the position when the bit value is 1 The network equipment indicates terminal device Y non-access network device in the position when the bit value is 0.It is adopted in figure 4b with secondary series For being indicated with "Yes" or "No".
4th kind of form:
In the history access information of terminal device Y comprising all terminal device Y carried out cell searching position information, And the phase of the corresponding cell of the corresponding access situation in each position and position when being successfully accessed the network equipment with terminal device Y Close information.
As an example, terminal device Y is in the failed access network device of position d, and in position, e is connect by macrocell A Enter the network equipment 1, f is by cell n access network device 3 in position, then the history access information of terminal device Y can be to retouch State the form record of file: in position, d is accessed not successfully, and in position, e is successfully accessed and the position e macrocell A's accessed The carrier frequency of reference signal be carrier wave 2, macrocell A PCI be PCI2, in position f be successfully accessed and position f access The carrier frequency of the reference signal of cell n be carrier wave 4, cell n PCI be PCI4, as shown in Figure 5A.
The history access information can be presented in table form, and as shown in Figure 5 B, which is divided into two column, First row is somebody's turn to do for recording when terminal device Y is located at for recording the information of each position for carrying out cell searching, secondary series The information of the cell accessed when position.The information of the cell can be the reference signal of the cell of access carrier frequency and/or The PCI of the cell of access.For example, secondary series corresponding with position e, the carrier frequency for recording the reference signal of macrocell A is to carry The PCI of wave 2 and macrocell A are PCI1.Secondary series corresponding with position f, records the carrier frequency of the reference signal of cell n PCI for carrier wave 4 and cell n is PCI4.Secondary series corresponding with position d, can recorde " sky " or "None", or can also Not make any record, in figure 5B, by taking secondary series corresponding with position d does not make any record as an example.
5th kind of form:
The relevant information of the cell of the history access information record access of terminal device Y record.By taking Fig. 2 as an example, work as end When end equipment Y is located at position c, terminal device Y can be by the reference signal access network device 1 of macrocell A and by macro The reference signal access network device 2 of cell m in cell A, that is to say, that terminal device Y can access simultaneously network and set Standby 1 and the network equipment 2, in this case, terminal device Y can recorde the PCI of the macrocell A of access, macrocell A's PCI characterization terminal device Y accesses location information when cell m, to indicate that there are slight areas in macrocell A.
It should be noted that above-mentioned five kinds of forms are only several citings to history access information, history access letter Breath can also use other forms, in the embodiment of the present application with no restriction.
It is further to note that only accessing or searching one a position with terminal device Y in above-mentioned five kinds of forms For a cell, in a practical situation, terminal device also may search for multiple cells in one position, alternatively, terminal is set It is standby that different cells can be accessed on the same position, therefore, in the history access information of terminal device, the same position On may include multiple cells information, for example, as shown in Figure 5 C, terminal device Y is at the first moment, and in position, e passes through macro small Area's A access network device 1；At the second moment, in position, e passes through macrocell B access network device 2, then the history of terminal device Y It may be embodied in the information of the macrocell A of position e access and the information of macrocell B in access information.It the information of the cell and goes through The mode recorded in history access information is identical as any one in aforementioned several forms, and details are not described herein.
In addition, the history access information of the form and terminal device Y record of the history access information of terminal device Z record Form is identical, and details are not described herein.
In the embodiment of the present application, position d or position e or position f can be terminal device Y and use global positioning system The position that (global positioning system, GPS) module determines, for example, it is provided with GPS module in terminal device Y, For terminal device Y in position f, the GPS coordinate that GPS module is shown is longitude: 104.07, latitude: and 30.67, the latitude and longitude information The as information of position e.Position e is also possible to what terminal device Y was determined using the network equipment in communication system.For example, working as Terminal device Y can receive the broadcast singal of network equipment X and network equipment Y, the broadcast of each network equipment in position e The geographical coordinate and signal transmission power of the network equipment can be carried in information, then, terminal device Y net based on the received The signal reception power of the broadcast singal of the signal reception power of the broadcast singal of network equipment X and received network equipment Y, really Determine terminal device Y respectively with the distance between network equipment X and network equipment Z, thus according to the geographical coordinate of network equipment X, The geographical coordinate and terminal device Y of network equipment Y determines position respectively with the distance between network equipment X and network equipment Y The geographical coordinate of e, the geographical coordinate are the information of position e.Certainly, position d or position e or position f is also possible to terminal and sets Standby Y determines that this is not restricted using other modes.
In addition, can be the access situation of the macrocell of record access in history access information in the embodiment of the present application, It is also possible to the access situation of the cell of record access, is also possible to have recorded the macrocell of access and connecing for cell simultaneously Enter situation.
Step 302, the respective history access information of other described end-point device broadcasts, terminal device X connect in first position Receive the respective history access information of other end-point device broadcasts.
In the embodiment of the present application, the received history access information from other terminal devices of terminal device X is One information.
After other terminal devices generate the history access information, then it can be used for by preconfigured in communication system The frequency domain resource of short-range communication, the short-range communication mode can be D2D communication, such as carrier wave 5, broadcast history access letter Breath.Wherein, there are many modes of other end-point device broadcasts history access information, as long as example, it may be generating history Access information is then continuously broadcasted.However persistently broadcast history access information can expend the electric energy of other terminal devices, from And the cruising ability of other terminal devices is reduced, therefore, other terminal devices are also possible to that this is gone through according to certain periodic broadcasting History access information, for example, 10s can be broadcasted every one minute.Certainly, other terminal devices can also broadcast this with employing mode and go through Access information, this is not restricted.
It should be noted that when including other multiple terminal devices, as shown in Figure 1B, other terminal devices in communication system Including terminal device Y and terminal device Z, then it is respective that the same frequency domain resource broadcast can be used in terminal device Y and terminal device Z History access information, for example, terminal device Y goes up broadcast terminal equipment Y's in the subframe 0, subframe 2, subframe 4 ... ... of carrier wave 5 History access information, terminal device Z go up the history access of broadcast terminal equipment Z in the subframe 1, subframe 3, subframe 5 ... of carrier wave 5 Information.Terminal device Y and terminal device Z also can be used different frequency domain resources and broadcast respective history access information, for example, Terminal device Y broadcasts its history access information using carrier wave 5, then next carrier wave of terminal device Z using terminal equipment Y, i.e., Carrier wave 6 broadcasts its history access information.In addition, the progress of the D2D communication technology can be used in other terminal devices and terminal device X Communication, also can be used other communication technologys, for example, V2X, bluetooth or the WIFI communication technology, broadcast the history access information, In the embodiment of the present application, not to the running time-frequency resource and the communication technology of terminal device Y and terminal device Z broadcast history access information It is limited.For convenience of description, hereinafter, in such a way that other terminal devices are using identical frequency domain resource and use D2D For broadcast history access information.
After terminal device X is powered on, terminal device X is then in the preconfigured frequency domain resource for D2D communication, such as carries In the corresponding frequency domain resource of wave 5, the history access information of other end-point device broadcasts is searched for.Due to the transmission power of terminal device It is limited, therefore, when terminal device X is moved to the distance between other terminal devices less than or equal to the first preset threshold, Terminal device X could receive the history access information.First preset threshold can be true according to the transmission power of terminal device Fixed.Specifically, the history that terminal device X can only receive other end-point device broadcasts in one position connects Enter information.For example, as shown in Figure 6A, by taking preset threshold is 100m as an example, the distance between terminal device X and terminal device Y are 90m, the distance between terminal device X and terminal device Z are 120m, since the distance between terminal device X and terminal device Z are big In the first preset threshold, therefore, in this case, what terminal device X was only capable of that receiving terminal apparatus Y broadcasts on carrier wave 5 is gone through History access information.Terminal device X can also can receive the history access of other multiple end-point device broadcasts in one position Information.For example, as shown in Figure 6B, by taking preset threshold is 100m as an example, the distance between terminal device X and terminal device Y are 90m, the distance between terminal device X and terminal device Z are 100m, due to the distance between terminal device X and terminal device Y, And the distance between terminal device X and terminal device Z are no more than the first preset threshold, therefore, in this case, eventually End equipment X can distinguish the history access information that receiving terminal apparatus Y and terminal device Z are broadcasted on carrier wave 5.Certainly, terminal is set Standby X also can receive the history access information of more other terminal devices, and details are not described herein.
Step 303, terminal device X determine first according to the history access information of the one or more second terminals received Position whether there is cell.
If the respective first information that multiple second terminals of the terminal device X near first position receives are sent, Only the first information corresponding to the multiple second terminal indicates that there is no cells for first position, just can consider first Cell is not present in position, as long as conversely, wherein small with the presence of the instruction of the first information corresponding to second terminal first position Area, it may be considered that there are cells for first position.It should be noted that when first information instruction is successfully accessed in first position Cross/cell is searched, it may be considered that there are cells for first information instruction first position.
In the embodiment of the present application, first position can be the position that terminal device X is currently located, and be also possible to and terminal The different other positions in the position that equipment X is currently located.In the following, both of these case is directed to, to the specific implementation process of step 303 It is illustrated respectively.
The first situation, first position are the position that terminal device X is currently located.
Terminal device X determines the position being currently located first, and for example, position e, then basis connects from other terminal devices The history access information received determines whether the position that terminal device X is currently located has the record being successfully accessed.Terminal device X is true Surely the method for the position being currently located determines that the method for position d or position e or position f are identical with terminal device Y in step 301, Details are not described herein.Since the form of received history access information is different, then terminal device X determines the current institute of terminal device X Position whether have the mode for the record being successfully accessed also not identical, it is specific as follows:
The first method of determination:
If history access information is the first form or second of form of step 301, terminal device X determines received In history access information whether include position e information.If so, then determining that history access information instruction terminal equipment X works as There are cells for the position at preceding place, otherwise, it determines cell is not present in the position that terminal device X is currently located.
Second of method of determination:
If history access information is the third form or the 4th kind of form of step 301, terminal device X determination first is connect Whether include the information of position e in the history access information of receipts, if so, then whether determining record content corresponding with position e To characterize the information that the position is successfully accessed the network equipment, for example, recording the small of access of the content for "Yes" or " 1 " or position e The carrier frequency and PCI of the reference signal in area.If record content characterizes the position and is successfully accessed the network equipment, terminal device There are cells for the determining position being currently located X, otherwise, it determines cell is not present in the position that terminal device X is currently located.
The third method of determination:
If terminal device X determines the information or corresponding with position e for not including in received history access information and having position e It records content and characterizes the failed access network device of position e, it is determined that between position e and the position for being successfully accessed the network equipment Whether more than the second preset threshold, which can be 50m or 20m etc. to distance.If position e and being successfully accessed net The distance between the position of network equipment is less than the second preset threshold, it is determined that there are small for the position that terminal device X is currently located Area, otherwise, it determines cell is not present in the position that terminal device X is currently located.For example, being successfully accessed network in history access information The position of equipment is position f, then terminal device X determines that the distance between position e and position f are 30m, less than the second preset threshold 50m, then there are cells for the determining position being currently located terminal device X.
It should be noted that terminal device X determines current location according to history access information in above-mentioned three kinds of methods of determination When with the presence or absence of cell, which can be macrocell, be also possible to cell.
4th kind of method of determination:
If history access information is the 5th kind of form of step 301, terminal device X is determined eventually according to the history access information The current location of end equipment X whether there is cell.
If terminal device X has currently passed through some macrocell access network device, such as accesses net by macrocell A Network equipment X, then terminal device X according in the history access information whether include macrocell A PCI, to determine in macrocell A It whether include cell.If including the PCI of macrocell A in the history access information, it includes small for characterizing in macrocell A Cell, otherwise, it determines macrocell A does not have cell.
Second situation, first position are the other positions different from the position that terminal device X is currently located.
Due to may include the access situation of multiple positions in the history access information of terminal device Y, terminal device X can also determine other positions with the presence or absence of cell according to the history access information.For example, the received history of terminal device X connects Entering information are as follows: position d is accessed not successfully, and position f is successfully accessed, then terminal device X determines and records that cell is not present in position d, There are cells by position f.In this way, terminal device X obtains the case where other positions are with the presence or absence of cell in advance, as terminal device X When being moved to the position, the position can be directly determined according to the recorded content with the presence or absence of cell, to reduce terminal device X With the interaction times of other terminal devices, the energy consumption of terminal device and the time-frequency for communicating between terminal device can be saved Resource.
Certainly, terminal device X can also be according to the history access information, while determining the position that terminal device X is currently located It sets with other positions with the presence or absence of cell, specific method of determination can be the knot of the first situation and the method in second situation It closes, details are not described herein.
After step 303, terminal device X determines first position with the presence or absence of after cell, and terminal device X can basis Definitive result, selection execute one of step in step 304-306, and step 304-306 is three kinds of different processing strategies. In Fig. 3, by taking terminal device X executes step 304 as an example.
Step 304, the terminal device X determine that there are cells for first position, it is determined that the search in the first position is joined Several values is the first search parameter value, and searches for cell according to the first search parameter value.
It is directed to two kinds of situations of first position, the specific implementation process of introduction step 304 separately below.
The first situation, first position are the position that terminal device X is currently located.
When terminal device X determines that there are cells for position that terminal device X is currently located, then terminal device X can be determined The position being currently located carries out the first search parameter value of cell searching, then searches for cell according to first search parameter value.
The search parameter used when firstly, carrying out cell searching to terminal device X is illustrated.
In the embodiment of the present application, the search parameter used when carrying out cell searching includes searching carrier frequency parameter, position Set at least one of movement threshold parameter, maximum search count parameter and search period parameters.
Terminal device X is according to searching carrier frequency search cell, and specifically, which can be one A frequency range, such as 1.9GHz~2.2GHz, then terminal device X searches for the reference signal of cell in the frequency range.The searching carrier Frequency parameter is also possible to the frequency of several preset carrier waves, for example, 1.9GHz, 2.GHz, 2.1GHz and 2.2GHz, then Terminal device X just searches for the reference signal of cell in these frequencies.In order to save the reference letter of terminal device X search cell Number bring energy consumption, terminal device X can be scanned for according to the search cycle, for example, the search cycle can be 2s, then terminal Equipment X searches for the reference signal of a cell every 2s.The counter of terminal device X can be counted in the same location finding cell Reference signal number, the same location finding cell reference signal number be less than or equal to maximum search number, For example, the maximum search number is 10 times, when terminal device X is after current location has carried out 10 search, terminal device X thinks Cell is not present in the position, and will stop carrying out the search process of the reference signal of cell in the position.Terminal device X is being searched for It may be subjected to displacement in the process, terminal device X can be according to device monitorings such as GPS module, accelerometer or direction sensors The displacement of terminal device X, when terminal device is subjected to displacement and displacement is more than or equal to the value of shift in position threshold parameter, eventually Position of the end equipment X after displacement re-searches for cell and the again number of the reference signal of statistics search cell.For example, the position Set movement threshold parameter value be 200m, terminal device X Present location search cell reference signal, when search the 8th time When, the GPS module detection terminal device X of terminal device X is subjected to displacement, and determines that the distance of this time displacement is 100m < 200m, because This, terminal device X is scanned for next time when, the count value of the counter of terminal device X is 9.When searching for the 9th time, terminal The GPS module detection terminal device X of equipment X is subjected to displacement, and determines that the distance of this time displacement is 100m, and terminal device X is determined Accumulative displacement is 200m, equal to the value of shift in position threshold parameter, thus, the count value of counter is reset, in movement Position afterwards re-searches for the reference signal of cell.
It should be noted that when terminal device X determines that accumulative displacement reaches the value of the shift in position threshold parameter of setting Afterwards, the position after movement terminal device X repeats step 301~step 303, when determine it is mobile after position there are when cell, Then position after movement carries out cell searching.
To which terminal device X is before carrying out cell searching, it is first determined the position whether there is cell, however, it is determined that should There are cells for position, then carry out cell searching, otherwise, can be to avoid there is no when cell in the position without cell searching Still carry out cell searching and caused by access network device time is longer and problem that energy consumption is larger.
In the embodiment of the present application, terminal device X determines that the method for the first search parameter value for carrying out cell searching can be with Including but not limited to the following two kinds mode, specific as follows:
The first method of determination:
When terminal device X determines that there are cells for the position being currently located, then terminal device X is obtained for searching for searching for cell The initial value of rope parameter, then according to the initial value in Present location search cell, that is to say, that in this case, should First search parameter value is the initial value of search parameter.The initial value of the search parameter can be terminal device pre-configuration , it is also possible to be also possible to other modes acquisition, this is not restricted by network equipment instruction.
That is, terminal device X determines that the position being currently located is deposited according to the history access information of other terminal devices In cell, cell searching is just carried out, so as to avoid causing there is no still cell searching is carried out when cell in the position Energy consumption problem can save the energy consumption of terminal device, improve the cruising ability of terminal device.
Second of method of determination:
When terminal device X determines that in the first position, then terminal device X can be adjusted according to the second information there are after cell For the value of search parameters one or more in the search parameter of first position search cell, obtains terminal device X and exist First search parameter value of the first position.In one embodiment, which is the first information, i.e. terminal device X The first information that the one or more second terminal equipment received are sent.In the following, respectively to terminal device X according to receiving The process and terminal device X that the first information that one second terminal equipment is sent determines the first search parameter value are according to receiving The first information that multiple second terminal equipment are sent determines that the process of the first search parameter value is illustrated.
A) terminal device X determines the first search parameter according to the first information that the second terminal equipment received is sent The process of value:
For convenience of description, it is accessed below using the first information that a second terminal equipment is sent as the history of terminal device Y For information.Under this way of search, search parameter includes searching carrier frequency parameter, shift in position threshold parameter, maximum At least one of searching times parameter and search period parameters, wherein the initial value of each search parameter and the first It is similar in method of determination.History access information of the terminal device X in terminal device Y based on the received adjusts taking for search parameter Obtained after value (the initial value based on search parameter is adjusted, and is such as increased or decreased to the value of initial value) this first Search parameter value.The method that terminal device X obtains the first search parameter value may include at least one of following three kinds:
The first acquisition modes:
There are cell, terminal device X reduces multiple for the position that the history access information instruction of terminal device Y is currently located The value of search period parameters in search parameter, and/or, increase the maximum search count parameter in multiple search parameter Value.That is, terminal device X can only reduce the value of search period parameters, alternatively, terminal device X can only increase The value or terminal device X of maximum search count parameter can reduce the value of search period parameters simultaneously and increase maximum The value of searching times parameter.
As an example, the value of search period parameters is 2s in search parameter, when terminal device X determination is currently located Position there are after cell, then the value of search period parameters is reduced to 1s or 1.5s, and in search parameter other ginseng Several values is constant.In this way, can accelerate end after terminal device X reduces the value of the search period parameters in search parameter The speed of end equipment X search cell, it is possible to reduce search for the time of cell.
As an example, the value of maximum search count parameter is 10 times in search parameter, when terminal device X determination is worked as There are after cell, then increasing the value of maximum search count parameter is 15 times or 20 times, and searches for ginseng for the position at preceding place The value of other parameters in number is constant.In this way, when terminal device X increases taking for the maximum search count parameter in search parameter After value, terminal device X can be made to have the position of cell repeatedly to search for cell in determination, the success rate of search cell can be improved.
As an example, when there are cells for the determining position being currently located terminal device X, then terminal device X can subtract The value of search period parameters in small search parameter and the value for increasing the maximum search count parameter in search parameter, from And the speed of cell can be searched for increasing terminal equipment X, it is possible to reduce search for the time of cell, and by increasing terminal device X It is determining the number for having the location finding cell of cell, the success rate of search cell can be improved.Specific acquisition modes with it is aforementioned Corresponding content is similar in two kinds of examples, and details are not described herein.
It should be noted that terminal device X, can be according to pre- in the value of adjusting parameter in above-mentioned acquisition modes If rule be adjusted.When the default rule may is that adjustment search period parameters, it is adjusted as unit of 0.5s； When adjusting maximum search number, it is adjusted as unit of 5 times.The default rule is also possible to determining that terminal device X works as The position at preceding place there are when cell, by the value of search period parameters is adjusted to fixed value 1s and/or by maximum search number The value of parameter is adjusted to fixed value 20 times.Certainly, which is also possible to other content, and this is not restricted.
Second of acquisition modes:
The history access information of terminal device Y indicates to be successfully accessed/search cell, Yi Ji in the first position It include being successfully accessed in one or more cells that the first position was successfully accessed/searches and the history access information The relevant information of the relevant information for the one or more cells crossed/searched, the cell includes the carrier frequency of cell, for example, When the history access information of terminal device Y is second of the form or the 4th kind of form in step 301, in history access information also The carrier frequency of cell including access, therefore, in the determining position being currently located terminal device X, there are cells, and go through from this Terminal device Y is determined in history access information in the carrier frequency of the cell for the position access being currently located, then terminal device X should The value for the searching carrier frequency parameter for including in multiple search parameters be adjusted to indicated by the history access information this The value of the carrier frequency for one or more cells that one position was successfully accessed/searches.It is carried for example, being searched in search parameter The value of wave frequency rate parameter is 1.9GHz~2.2GHz, and when the determining position being currently located terminal device X, there are cell and determinations After the carrier frequency of the corresponding cell in the position is 2.0GHz, then 2.0GHz is set by the value of searching carrier frequency parameter, And the value of the other parameters in search parameter is constant.In this way, terminal device X can quickly navigate to the carrier wave where the cell Frequency can save the time scanned in multiple carrier frequencies.
It should be noted that may include in same position multiple small due in the history access information of terminal device Y The information in area, then terminal device X can also adjust the value of searching carrier frequency parameter according to the information of this multiple cell.If eventually The frequency of multiple cells of same position is had recorded in the history access information of end equipment Y, for example, the frequency of macrocell A The frequency 3.0GHz of the frequency 2.5GHz of 2.0GHz, macrocell B, macrocell C, then terminal device X can be by searching carrier frequency The value of parameter sets gradually as the frequency of this multiple cell, thus the frequency of this multiple cell of terminal device X traversal search, example Such as, the value that searching carrier frequency parameter can be arranged in terminal device X first is 2.0GHz, then carries out cell searching；Then The value of searching carrier frequency parameter is set 2.5GHz by terminal device X, carries out cell searching；Finally, terminal device X will be searched The value of rope carrier frequency parameter is set as 3.0GHz, carries out cell searching.In this way, when second information indicates first In the case where the relevant information for setting existing multiple cells, the terminal device X can carry out traversal to the multiple cell and search Rope；Alternatively, the terminal device X can sequentially scan for the multiple cell, searching can after a cell To stop the search to other cells.
The third acquisition modes:
The history access information of terminal device Y indicates to be successfully accessed/search cell, Yi Ji in the first position It include being successfully accessed in one or more cells that the first position was successfully accessed/searches and the history access information The relevant information of the relevant information for the one or more cells crossed/searched, the cell includes the carrier frequency of cell, for example, When the history access information of terminal device Y is second of the form or the 4th kind of form in step 301, in history access information also The carrier frequency of cell including access, therefore, in the determining position being currently located terminal device X, there are cells, and go through from this Terminal device Y is determined in history access information in the carrier frequency of the cell for the position access being currently located, then when terminal device X is true The carrier frequency indicated in the fixed history access information is greater than or equal to the first preset value, which is preset search Carrier frequency, terminal device X reduce the value of the shift in position threshold parameter in search parameter；When terminal device X determines that this is gone through For the carrier frequency indicated in history access information less than the second preset value, which is also preset searching carrier frequency, Terminal device X increases the value of the shift in position threshold parameter in search parameter.It should be noted that the first preset value and second Preset value may be the same or different, and this is not restricted.
Specifically, if the searching carrier frequency being arranged in search parameter be a frequency range, for example, for 10GHz~ 50GHz, then the preset carrier frequency can be the intermediate frequency of the frequency range, for example, being 30GHz；If being arranged in search parameter Searching carrier frequency be several frequencies, for example, be 10GHz, 15GHz, 20GHz, 30GHz and 50GHz, then this is preset Carrier frequency can be frequency in an intermediate position in several frequencies, for example, 20GHz.Certainly, the preset carrier wave Frequency can also use other methods of determination, and this is not restricted.
It is 20GHz with preset carrier frequency, if terminal device X determines the position being currently located according to history access information It is 30GHz there are the carrier frequency of cell and cell corresponding with the position, due to 30GHz > 20GHz, can be by position The value of movement threshold parameter is reduced to 80m by the 100m in search parameter.If terminal device X is determined according to history access information The position being currently located is 15GHz there are the carrier frequency of cell and cell corresponding with the position, due to 15GHz < 20GHz, Therefore, the value of shift in position threshold parameter can be increased to 120m by the 100m in search parameter.
It should be noted that may include in same position multiple small due in the history access information of terminal device Y The information in area, then terminal device X can also adjust the value of shift in position threshold parameter according to the information of this multiple cell.If eventually The frequency of multiple cells of same position is had recorded in the history access information of end equipment Y, for example, the frequency of macrocell A The frequency 10GHz of 2.0GHz, cell m, then terminal device X can determine shift in position threshold value according to the two carrier frequencies Two kinds of values of parameter, for example, determining that the value of shift in position threshold parameter is 120m according to the frequency of macrocell A, according to small The frequency of small m determines that the value of shift in position threshold parameter is 80m.So, when the load that terminal device X is used when searching for cell When wave frequency rate is low frequency, then the value of shift in position threshold parameter can be set as being determined according to macrocell A by terminal device Value, when the carrier frequency that terminal device X is used when searching for cell be high frequency when, then terminal device can be by shift in position The value of threshold parameter is set as the value determined according to cell m, and terminal device X can be selected according to the actual situation It selects.
Terminal device X, can when adjusting the value of the shift in position threshold parameter in search parameter according to the carrier frequency To be adjusted as unit of preset distance value, for example, being adjusted as unit of 20m every time, being also possible to directly should The value of shift in position threshold parameter is adjusted to preset fixed value, it is of course also possible to be other modes, this is not restricted.
In addition, second of acquisition modes and the third acquisition modes also can be combined.For example, terminal device Y's It further include the information of the cell of access when history access information is second of form or the 4th kind of form, in history access information, Therefore, in the determining position being currently located terminal device X, there are cells, and terminal device Y is determined from the history access information In the carrier frequency of the cell for the position access being currently located, then terminal device X is adjusted in search parameter according to the carrier frequency Searching carrier frequency parameter value and shift in position threshold parameter value.Specific acquisition modes and second of acquisition side Formula is identical with content corresponding in the third acquisition modes, and details are not described herein.In this case, the history of terminal device Y Access information instruction includes the information of multiple cells in same position, then terminal device X can also be according to this multiple cell Information adjusts the value of searching carrier frequency parameter and the value of shift in position threshold parameter.For example, if the history of terminal device Y The frequency of multiple cells of same position is had recorded in access information, for example, the frequency 2.0GHz of macrocell A, the frequency of cell m Rate 10GHz, then terminal device X can set gradually the value of searching carrier frequency parameter as the frequency of this multiple cell, so Afterwards, it when searching for cell with corresponding carrier frequency, sets the value of shift in position threshold parameter to according to the carrier frequency Determine the value of shift in position threshold parameter.For example, determining the value of shift in position threshold parameter according to the frequency of macrocell A For 120m, determine that the value of shift in position threshold parameter is 80m according to the frequency of cell m, then when the search of terminal device X carries The value of wave frequency rate parameter is 2.0GHz, and terminal device X sets 120m for the value of shift in position threshold parameter, then carries out Cell searching；When the value of searching carrier frequency parameter is set 10GHz by terminal device X, terminal device X is by shift in position threshold The value of value parameter is set as 80m, cell searching is carried out, until searching cell.
B) terminal device X determines taking for search parameter according to the first information that the multiple second terminal equipment received are sent The process of value:
When terminal device X receives the first information that multiple second terminal equipment are sent, then terminal device X needs basis should Multiple first information determine the value of search parameter.It for convenience of description, hereinafter can be for eventually with multiple second terminal equipment For end equipment Y and terminal device Z.The history access information and terminal device Z of terminal device X terminal device Y based on the received The method of value of history access information adjustment search parameter may include at least one of following three kinds:
The first acquisition modes:
As long as the history access information of any one or more terminal devices in terminal device Y and terminal device Z indicates There are cell, terminal device X reduces the value of the search period parameters in multiple search parameter for the position being currently located, and/ Or, increasing the value of the maximum search count parameter in multiple search parameter.First in specific acquisition modes and situation a) Kind acquisition modes are similar, and details are not described herein.
Second of acquisition modes:
The history access information instruction of terminal device Y and/or terminal device Z was successfully accessed/searched in the first position Rope is to cell, and the one or more cells for being successfully accessed/searching in the first position and the history access information In include the relevant information of one or more cells for being successfully accessed/searching, the relevant information of the cell includes cell Carrier frequency, then the value for the searching carrier frequency parameter for including in multiple search parameter is adjusted to this and goes through by terminal device X The carrier frequency for the one or more cells for being successfully accessed/searching in the first position indicated by history access information takes Value.
When the history access information of only one terminal device in terminal device Y and terminal device Z is indicated at this first Set and be successfully accessed/search includes being successfully accessed in cell and the history access information/one or more searched The relevant information of cell, then terminal device X only needs to determine searching carrier according to the history access information of a terminal device The value of frequency parameter, the process is identical as second of acquisition modes in situation a), and details are not described herein.
When the history access information of terminal device Y and terminal device Z indicates that the first position was successfully accessed/searches It include the relevant information for the one or more cells for being successfully accessed/searching in cell and each history access information, then The relevant information for the cell for including in the history access information of terminal device Y can in the history access information of terminal device Z Including cell relevant information it is identical, can also be different.When the cell for including in the history access information of multiple terminal devices Relevant information it is identical when, the process is identical as second of acquisition modes in situation a), and details are not described herein.When multiple terminals When the relevant information difference for the cell for including in the history access information of equipment, for example, in the history access information of terminal device Y Frequency including the macrocell A accessed in first position is 2.0GHz, is included in first in the history access information of terminal device Z The frequency of the macrocell B of position access is 2.5GHz, then terminal device X can successively set the value of searching carrier frequency parameter It is set to the frequency of this multiple cell, thus the frequency of this multiple cell of terminal device X traversal search, the process and afore-mentioned a) In corresponding process it is similar, details are not described herein.
The third acquisition modes:
The history access information instruction of terminal device Y and/or terminal device Z was successfully accessed/searched in the first position Rope is to cell, and the one or more cells for being successfully accessed/searching in the first position and the history access information In include the relevant information of one or more cells for being successfully accessed/searching, the relevant information of the cell includes cell Carrier frequency, then terminal device X is according to each history access information middle finger in the history access information of multiple terminal device The size relation of the carrier frequency shown and the first preset value, and, the carrier frequency indicated in each history access information and the The size relation of two preset values determines the value of shift in position threshold parameter.The process can in situation a) as terminal device Y History access information in include multiple cells information when determine that the process of the value of shift in position threshold parameter is similar, herein It repeats no more.
Second situation, first position are the other positions different from the position that terminal device X is currently located.
When the history access information of terminal device X terminal device Y based on the received, determination is currently located with terminal device X The different other positions in position there are cells, then when terminal device X is moved to the other positions, the first feelings can be used One way in which in condition carries out cell searching, and details are not described herein.
Step 305, terminal device X determine first position there is no cell, then forbid searching in first position progress cell Rope.
In the embodiment of the present application, when terminal device X the second information based on the received, determine that terminal device X is currently located Position cell is not present, that is to say, that second information instruction in first position accessed not successfully/searched cell, then It is considered that cell is not present in second information instruction first position.Then terminal device X forbids carrying out in the position being currently located Cell searching.When terminal device X determines the other positions different from the position that terminal device X is currently located, there is no cells, then When terminal device X is moved to the other positions, forbid carrying out cell searching in the other positions.Second information and step The second information in 304 is identical, i.e. the history access information of terminal device Y.
Certainly, when the history access information that the second information is multiple terminal devices, then in multiple history access information The instruction of each history access information in first position accessed not successfully/searched cell, then terminal device X determine this Cell is not present in one position, to forbid searching for cell in the first position.
Step 306, terminal device X determine first position there is no cell, then terminal device X is in the first position, according to Second search parameter searches for cell.
It is directed to two kinds of situations of first position, 306 specific implementation process of introduction step separately below.
The first situation, first position are the position that terminal device X is currently located.
When terminal device X determines that there is no cells for the position being currently located, then terminal device X is obtained for searching for cell Search parameter, then according to the second information is received, adjust search period parameters in the search parameter for searching for cell and/or The value of maximum search count parameter obtains the second search parameter value, small in Present location search according to the second search parameter value Area.Second information is identical as the second information in step 304 and step 305, and details are not described herein.
Taking for search parameter is determined according to the first information that the second terminal equipment received is sent with terminal device X For the history access information that value and a second terminal equipment are terminal device Y.Terminal device X based on the received The process of two the second search parameter values of acquisition of information includes but is not limited to following three kinds:
The first acquisition modes:
There is no cells for the position that the history access information instruction of terminal device Y is currently located, then terminal device X can increase The value of search period parameters in big search parameter works as terminal for example, the value of search period parameters is 2s in search parameter Equipment X determines that the value of search period parameters there is no after cell, is then increased to 3s or 4s by the position being currently located, and searches The value of other parameters in rope parameter is constant.The number of cell is searched for so as to reduce terminal device X within the unit time, Terminal device can be reduced within the unit time for searching for the energy consumption of cell.
Second of acquisition modes:
There is no cells for the position that the history access information instruction of terminal device Y is currently located, then terminal device X can subtract The value of maximum search count parameter in small search parameter, for example, the value of maximum search count parameter is in search parameter 10 times, when terminal device X determines that the position being currently located there is no after cell, then reduces the value of maximum search count parameter It is 5 times or 6 times, and the value of the other parameters in search parameter is constant.Do not have so as to reduce terminal device X in determination The position of cell carries out the number of cell searching, it is possible to reduce energy consumption and progress cell of the terminal device X for cell searching The time of search.
The third acquisition modes:
There is no cells for the position that the history access information instruction of terminal device Y is currently located, then terminal device X can increase The value of search period parameters in big search parameter and the value for reducing the maximum search count parameter in search parameter, from And terminal device X can be reduced for the energy consumption of cell searching and the time of progress cell searching.Specific acquisition modes and step The first acquisition modes in rapid 306 are identical with content corresponding in the second acquisition modes, and details are not described herein.
It should be noted that in above-mentioned three kinds of acquisition modes, terminal device X, can be by the value of adjusting parameter It is adjusted according to default rule.When the default rule may is that adjustment search period parameters, adjusted as unit of 0.5s It is whole；When adjusting maximum search number, it is adjusted as unit of 5 times.The default rule is also possible to determining terminal device X When cell is not present in the position being currently located, the value of search period parameters is adjusted to fixed value 3s and/or by maximum search The value of count parameter is adjusted to fixed value 5 times.Certainly, which is also possible to other content, and this is not restricted.
In addition, it is necessary to explanation, terminal device X obtains second according to the first information that multiple second terminal equipment are sent Search parameter value, content corresponding with step 304 is similar, and details are not described herein.
Second situation, first position are the other positions different from the position that terminal device X is currently located.
When the history access information of terminal device X terminal device Y based on the received, determination is currently located with terminal device X The different other positions in position can use step then when terminal device X is moved to the other positions there is no cell One way in which in 306 the first situation carries out cell searching, and details are not described herein.
Step 307, terminal device X broadcast and/or storage search result.
In the embodiment of the present application, the search result be used to indicate be successfully accessed/searched in the first position it is small The information in area or the search result, which are used to indicate, does not search cell in the first position.
When terminal device X carries out cell searching in the position being currently located by the way of in step 304 or step 306 Afterwards, if terminal device X is successfully searched cell in the position being currently located, for example, searching cell m, then terminal device X is logical Too small cell m access network device 2, then record the carrier frequency of cell m, the position that terminal device X is currently located and The PCI of the network equipment 2 corresponding with cell m.Then, it is accessed by modes such as D2D, WIFI or bluetooths to broadcast slight Information of area m, such as the carrier frequency of cell m etc..
If terminal device X reaches the maximum search in search parameter in the number for the location finding cell being currently located Number, and still can not search any cell, then terminal device X also can recorde position that terminal device X is currently located and There is no the information of cell to be then currently located by the modes broadcast terminal equipment such as D2D, WIFI or bluetooth X for the position Message of the position without cell.
Certainly, terminal device X can be determined according to the setting of user or operating parameter (remaining capacity etc.), if be needed wide Broadcast the search result.For example, then terminal device X goes off the air the search result when user setting closes sharing functionality；Work as end When the electricity of end equipment X is lower, terminal device X, which can be automatically stopped, broadcasts the search result.Terminal device X can also be according to interior The factors such as the remaining space deposited decide whether to store the search result.For example, for storing the search in terminal device X As a result memory headroom has been expired, then terminal device can not store the search result, alternatively, terminal device X can be in deletion After the search result or the least common search result of deletion of preceding storage, it is stored in the search that the position being currently located obtains As a result.
It should be noted that step 307 is optional step, that is, it is not necessarily meant to execution.
In the above-mentioned technical solutions, terminal device can connect before searching for cell in conjunction with the history of other terminal devices Enter information to determine the position with the presence or absence of cell, cell, then can accelerate search by adjusting search parameter if it exists；If There is no cells, can not search for or adjust search parameter, do unnecessary cell searching to reduce terminal device, can drop The power consumption of low terminal device.
In the above-described embodiments, terminal device is searched for small according only to the history access information of other end-point device broadcasts Area.In order to improve the robustness of terminal device search cell, another embodiment of the application provides a kind of small region search method, please join Fig. 7 is examined, is the flow chart of this method.During following introduction, applied with technical solution provided by the embodiments of the present application In application scenarios shown in Figure 1B, and with the cell searching mistake of one of terminal device in communication system shown in Figure 1B Journey, for example, being illustrated for the cell search process of terminal device X.The flow chart of this method is described as follows:
Step 701, other terminal devices generate history access information.
Step 702, other end-point device broadcasts history access information, terminal device X receive the history access information.
Step 701~step 702 is similar to step 301~step 302.
Step 703, terminal device X one or more history access informations of second terminal and the end of storage based on the received The history access information of end equipment X determines that there are cells for first position.
In the embodiment of the present application, terminal device X also can store history access information, which includes connecing The information of the cell entered.For example, the information of all cells accessed before terminal device X power-off, to work as terminal device After powering on again, then available history access information.The content of its history access information is set with other terminals in step 301 Standby history access information is identical, and details are not described herein.
Then, terminal device X can be using the method in step 303, respectively according to the one or more second terminal History access information, and determine first position with the presence or absence of cell according to the history access information that terminal device X is stored.This one A or multiple second terminals can be other terminal devices in step 702, i.e. terminal device Y and terminal device Z.
As an example, if the history access information of other received terminal devices and terminal device X storage go through There are cells for one of history access information instruction first position in both history access informations (i.e. the second information), then eventually End equipment X determines that there are cells for first position.Otherwise, if the history access information and terminal of other received terminal devices are set Cell is not present in the history access information both of which instruction first position of standby X storage, then terminal device X determines first position not There are cells.
As another example, if what the history access information of other received terminal devices and terminal device X were stored Each of both history access informations history access information indicates that there are cells for first position, then terminal device X is true Determining first position, there are cells.Otherwise, if each history access information indicates that there is no cell, terminal devices for first position X determines that there is no cells for first position.
It should be noted that in this case, the first information is the history access letter of other terminal devices received Breath, the second information include the history access information of the first information and terminal device X storage.The definition and step of first position Identical in 303, details are not described herein.
If step 704, second information indicate that there are cells for first position, terminal device X is in the first position, root Cell is searched for according to the first search parameter value.
If step 705, second information indicate that cell is not present in first position, terminal device X is inhibited itself at this First position carries out cell searching.
If step 706, second information indicate that cell is not present in first position, terminal device X in the first position, Cell is searched for according to the second search parameter value.
Step 707, terminal device X broadcast and/or storage search result.
Step 704~step 707 is similar to step 304~step 307, and details are not described herein.
In the above-mentioned technical solutions, terminal device can connect before searching for cell in conjunction with the history of other terminal devices The history access information for entering information and itself storage determines the position with the presence or absence of cell, so as to improve above-mentioned cell together The robustness of searching method.
In the above-mentioned technical solutions, terminal device needs to rely on the history access information of other end-point device broadcasts to search for Cell.In order to reduce the dependence to other terminal devices, another embodiment of the application provides a kind of small region search method, please join Fig. 8 is examined, is the flow chart of this method.During following introduction, applied with technical solution provided by the embodiments of the present application In application scenarios shown in Figure 1B, and with the cell searching mistake of one of terminal device in communication system shown in Figure 1B Journey, for example, being illustrated for the cell search process of terminal device X.The flow chart of this method is described as follows:
Step 801, terminal device X obtain the first information.
In the embodiment of the present application, the first information includes the following two kinds situation:
The first situation:
Other terminal devices do not broadcast history access information, alternatively, other end-point device broadcasts history access information But terminal device X is not received by, then terminal device X obtains the history access information of itself storage.The history of itself storage Access information is then the first information.
Second situation:
Terminal device X determines the history access information for not receiving other end-point device broadcasts in preset duration, then terminal Equipment X generates the first information, which does not receive the history access information of other end-point device broadcasts.
Step 802, terminal device X determine whether the history access information indicates that there are small for first position according to the first information Area.
Specifically, in the first of step 801, terminal device X can be using the method in step 303, root Determine first position with the presence or absence of cell according to the history access information that terminal device X is stored.If the history of terminal device X storage connects Entering information instruction first position, there are cells, then terminal device X determines that there are cells for first position.Otherwise, terminal device X is determined Cell is not present in first position.Wherein, the definition of first position is identical with step 303, and details are not described herein.
Under the second situation of step 801, terminal device X can determine first position not directly according to the first information There are cells.It should be noted that in this case, first position is the position that terminal device X is currently located.
If step 803, second information indicate that there are cells for first position, terminal device X is in the first position, root Cell is searched for according to the first search parameter value.
If step 804, second information indicate first position be not present cell, terminal device X forbid this first Position carries out cell searching.
If step 805, second information indicate that cell is not present in first position, terminal device X in the first position, Cell is searched for according to the second search parameter value.
Step 806, terminal device X broadcast and/or storage search result.
In the embodiment of the present application, the first information in the second information, that is, step 801.Step 803~step 806 and step Rapid 304~step 307 is identical, and details are not described herein.
In the above-mentioned technical solutions, terminal device is in the history access information for not receiving other end-point device broadcasts, Also cell can be searched for according to the history access information of itself storage or the first information of generation, processing mode is simple, can To reduce the computational complexity of terminal device.
In above-mentioned embodiment provided by the present application, respectively eventually from first terminal, second terminal and first terminal and second The angle of interaction is described method provided by the embodiments of the present application between end.In order to realize that above-mentioned the embodiment of the present application mentions Each function in the method for confession, first terminal or second terminal may include hardware configuration and/or software module, with hardware knot Structure, software module or hardware configuration add the form of software module to realize above-mentioned each function.Some function in above-mentioned each function It is executed in such a way that hardware configuration, software module or hardware configuration add software module, specific depending on technical solution answers With and design constraint.
Fig. 9 shows a kind of structural schematic diagram of communication device 900.Wherein, communication device 900 can be terminal, can Realize the function of first terminal in method provided by the embodiments of the present application；Communication device 900 is also possible to support that terminal is real The device of the function of first terminal in existing method provided by the embodiments of the present application.Communication device 900 can be hardware configuration, software Module or hardware configuration add software module.Communication device 900 can be realized by chip system.In the embodiment of the present application, chip system System can be made of chip, also may include chip and other discrete devices.
Communication device 900 may include processing module 901 and transceiver module 902.
Processing module 901 can be used for executing step 303~step 307 in embodiment shown in Fig. 3, or for executing Step 703~step 707 in embodiment shown in Fig. 7, and/or other processes for supporting techniques described herein. Transceiver module 902 is communicated for communication device 900 and other modules, can be circuit, device, interface, bus, software Module, transceiver or other devices that communication arbitrarily may be implemented.
Transceiver module 902 can be used for executing the step 302 and step 307 in embodiment shown in Fig. 3, or for holding Step 702 and step 707 in row embodiment shown in Fig. 7, and/or other mistakes for supporting techniques described herein Journey.
Wherein, all related contents for each step that above method embodiment is related to can quote corresponding function module Function description, details are not described herein.
It is schematical, only a kind of logical function partition to the division of module in the embodiment of the present application, it is practical to realize When there may be another division manner, in addition, each functional module in each embodiment of the application can integrate at one It manages in device, is also possible to physically exist alone, can also be integrated in two or more modules in a module.It is above-mentioned integrated Module both can take the form of hardware realization, can also be realized in the form of software function module.
It is as shown in Figure 10 communication device 1000 provided by the embodiments of the present application, wherein communication device 1000 can be figure 3, the first terminal in Fig. 7 or embodiment shown in Fig. 8, can be realized first terminal in method provided by the embodiments of the present application Function；Communication device 1000 is also possible to that first terminal can be supported to realize first terminal in method provided by the embodiments of the present application Function device.Wherein, which can be chip system.In the embodiment of the present application, chip system can be by Chip is constituted, and also may include chip and other discrete devices.
Communication device 1000 includes at least one processor 1020, for realizing or for support communication device 1000 to realize The function of first terminal in method provided by the embodiments of the present application.Illustratively, processor 1020 can be determined at this first It sets and is not repeated herein with the presence or absence of cell referring specifically to the detailed description in method example.
Communication device 1000 can also include at least one processor 1030, for storing program instruction and/or data.It deposits Reservoir 1030 and processor 1020 couple.Coupling in the embodiment of the present application is the INDIRECT COUPLING between device, unit or module Or communication connection, it can be electrical property, mechanical or other forms, for the information exchange between device, unit or module.Processing Device 1020 may be with 1030 cooperating of memory.Processor 1020 may execute the program instruction stored in memory 1030. At least one of described at least one processor may include in processor.
Communication device 1000 can also include transceiver 1010, for being communicated by transmission medium and other equipment, For the device in communication device 1000 can be communicated with other equipment.Illustratively, which can be Second terminal.Processor 1020 can use 1010 sending and receiving data of transceiver.
It is not limited in the embodiment of the present application specific between above-mentioned transceiver 1010, processor 1020 and memory 1030 Connect medium.The embodiment of the present application is total to pass through between memory 1030, processor 1020 and transceiver 1010 in Figure 10 Line 1040 connects, and bus indicates that the connection type between other components is only to be schematically illustrated in Figure 10 with thick line, Do not regard it as and is limited.The bus can be divided into address bus, data/address bus, control bus etc..For convenient for indicating, in Figure 10 only It is indicated with a thick line, it is not intended that an only bus or a type of bus.
In the embodiment of the present application, processor 1020 can be general processor, digital signal processor, dedicated integrated electricity Road, field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware group Part may be implemented or execute disclosed each method, step and logic diagram in the embodiment of the present application.General processor can be with It is microprocessor or any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present application, can direct body Now executes completion for hardware processor, or in processor hardware and software module combine and execute completion.
In the embodiment of the present application, memory 1030 can be nonvolatile memory, such as hard disk (hard disk Drive, HDD) or solid state hard disk (solid-state drive, SSD) etc., it can also be volatile memory (volatile ), such as random access memory (random-access memory, RAM) memory.Memory can be used for carrying or deposit Store up the desired program code with instruction or data structure form and can be by any other medium of computer access, but not It is limited to this.Memory in the embodiment of the present application can also be circuit or other devices that arbitrarily can be realized store function, For storing program instruction and/or data.
A kind of computer readable storage medium, including instruction are also provided in the embodiment of the present application, when it is transported on computers When row, so that computer executes the method that first terminal executes in any one embodiment in Fig. 3, Fig. 7 and Fig. 8.
A kind of computer program product, including instruction are also provided in the embodiment of the present application, when run on a computer, So that computer executes the method that first terminal described in any one embodiment executes in Fig. 3, Fig. 7 and Fig. 8.
The embodiment of the present application provides a kind of chip system, which includes processor, can also include memory, For realizing the function of first terminal in preceding method.The chip system can be made of chip, also may include chip and its His discrete device.
It, can be wholly or partly by software, hardware, firmware or it is any in method provided by the embodiments of the present application Combination is to realize.When implemented in software, it can entirely or partly realize in the form of a computer program product.The meter Calculation machine program product includes one or more computer instructions.Load and execute on computers the computer program instructions When, it entirely or partly generates according to process or function described in the embodiment of the present invention.The computer can be general-purpose computations Machine, special purpose computer, computer network, the network equipment, user equipment or other programmable devices.The computer instruction can To store in a computer-readable storage medium, or computer-readable deposit from a computer readable storage medium to another Storage media transmission, for example, the computer instruction can pass through from a web-site, computer, server or data center It is wired (such as coaxial cable, optical fiber, Digital Subscriber Line (digital subscriber line, abbreviation DSL) or it is wireless (such as Infrared, wireless, microwave etc.) mode transmitted to another web-site, computer, server or data center.The meter Calculation machine readable storage medium storing program for executing can be any usable medium that computer can access or include that one or more can use Jie The data storage devices such as matter integrated server, data center.The usable medium can be magnetic medium (for example, floppy disk, hard Disk, tape), optical medium (for example, digital video disk (digital video disc, abbreviation DVD)) or semiconductor medium (for example, SSD) etc..
Obviously, those skilled in the art can carry out various modification and variations without departing from the model of the application to the application It encloses.In this way, if these modifications and variations of the application belong within the scope of the claim of this application and its equivalent technologies, then The application is also intended to include these modifications and variations.

Claims (15)

1. a kind of small region search method characterized by comprising
Before first terminal searches for cell in first position, the first information is obtained, the first information includes passing through short-range communication Each second terminal that mode is obtained from one or more second terminals near the first terminal is in the first position institute Corresponding history access information, history access information corresponding to the first position indicate the first position with the presence or absence of small Area；
The first terminal determines the first terminal in the value of the search parameter of the first position, institute according to the second information Stating the second information includes the first information；
The first terminal searches for cell in the first position, according to the value of described search parameter.
2. the method according to claim 1, wherein second information further includes that the first terminal is stored First terminal history access information corresponding to the first position.
3. method according to claim 1 or 2, which is characterized in that history access information corresponding to the first position Including the first instruction information, the first instruction information be used to indicate be successfully accessed in the first position/search cell, Or, the first instruction information be used to indicate accessed not successfully in the first position/search cell.
4. method according to claim 1 or 2, which is characterized in that history access information corresponding to the first position Including second indication information, the second indication information be used to indicate be successfully accessed in the first position/search cell, And the one or more cells searched in the first position.
5. method according to claim 1 or 2, which is characterized in that history access information corresponding to the first position Indicate information including third, third instruction information be used to indicate be successfully accessed in the first position/search cell, And the one or more cells being successfully accessed in the first position.
6. method according to claim 1 or 2, which is characterized in that history access information corresponding to the first position Including the 4th instruction information, the 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, / one or more cells for searching and described be successfully accessed/and were successfully accessed in the first position to search One or more cells relevant information, the relevant information of the cell includes the carrier frequency of cell.
7. -6 any method according to claim 1, which is characterized in that described search parameter includes searching carrier frequency ginseng At least one of number, shift in position threshold parameter, maximum search count parameter and search period parameters, the first terminal Cell is searched for according to the value of described search carrier frequency parameter；The first terminal is equal in the number of a location finding cell When the value of the maximum search count parameter, the first terminal, which is determined, is not present cell in the position；When described first When terminal is subjected to displacement and displacement is more than or equal to the value of the shift in position threshold parameter, the first terminal is after displacement Position re-search for cell and again statistics search cell number；The first terminal in a location finding cell, Time interval between at the time of preceding primary search terminates and at the time of search starts next time is described search cycle parameter Value.
8. -7 any method according to claim 1, which is characterized in that the first terminal is true according to second information Value of the fixed first terminal in the search parameter of the first position, comprising:
The first terminal is adjusted according to second information for one in the search parameter of first position search cell The value of a or multiple search parameters obtains the first terminal in the value of the search parameter of the first position.
9. according to the method described in claim 8, it is characterized in that, the first terminal is according to second information determination First terminal includes: in the value of the search parameter of the first position
When second information indicates the first position there are when cell, the first terminal is determined in the first position The value of search parameter is the first search parameter value；
It is the first search parameter value in the value of the search parameter of the first position includes: described that the first terminal, which is determined, One terminal reduces the value of the search period parameters in described search parameter, and/or, increase most wantonly searching in described search parameter The value of rope count parameter.
10. method according to claim 8 or claim 9, which is characterized in that access reference information corresponding to the first position Including the 4th instruction information, the 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, / one or more cells for searching and described be successfully accessed/and were successfully accessed in the first position to search One or more cells relevant information, the relevant information of the cell includes the carrier frequency of cell；
The first terminal adjusts the value of one or more search parameters in described search parameter, packet according to second information It includes:
When second information indicates the first position there are when cell, the first terminal is determined in the first position The value of search parameter is the first search parameter value；
It is that the first search parameter value includes: that the first terminal, which is determined in the value of the search parameter of the first position,
The value for the searching carrier frequency parameter for including in described search parameter is adjusted to the described 4th and referred to by the first terminal Show taking for the carrier frequency for the one or more cells for being successfully accessed/searching in the first position indicated by information Value.
11. method according to claim 8 or claim 9, which is characterized in that access reference information corresponding to the first position Including the 4th instruction information, the 4th instruction information, which is used to indicate, was successfully accessed/searched cell in the first position, / one or more cells for searching and described be successfully accessed/and were successfully accessed in the first position to search One or more cells relevant information, the relevant information of the cell includes the carrier frequency of cell；
The first terminal adjusts the value of one or more search parameters in described search parameter, packet according to second information It includes:
When second information indicates taking for the carrier frequency for the first community for being successfully accessed/searching in the first position Value is greater than or equal to the first preset value, then the first terminal reduces the value of the shift in position threshold value in described search parameter； Or
When second information indicates taking for the carrier frequency for the first community for being successfully accessed/searching in the first position Value is less than the second preset value, then the first terminal increases the value of the shift in position threshold value in described search parameter.
12. according to the method described in claim 8, it is characterized in that, the first terminal determines described according to the second information Value of one terminal in the search parameter of the first position, comprising:
When second information indicates that cell is not present in the first position, the first terminal increases the multiple search ginseng The value of search period parameters in number, and/or, reduce taking for the maximum search count parameter in the multiple search parameter Value, with determine the first terminal the search parameter of the first position value be the second search parameter value.
13. method described in any one of -12 according to claim 1, which is characterized in that in the value according to described search parameter It searches for after cell, the method also includes:
The first terminal broadcast and/or storage search result, described search result are used to indicate in first position success The information or described search result for the cell for accessing/searching, which are used to indicate, does not search cell in the first position.
14. a kind of communication device, which is characterized in that including processor and transceiver, in which:
Before the transceiver searches for cell in first position, the first information is obtained, the first information includes by closely logical Each second terminal that letter mode is obtained from one or more second terminals near the communication device is in the first position Corresponding history access information, history access information corresponding to the first position indicate that the first position whether there is Cell；
The processor according to the second information determine the communication device in the value of the search parameter of the first position, it is described Second information includes the first information；
The transceiver searches for cell in the first position, according to the value of described search parameter.
15. a kind of communication device, which is characterized in that including processing module and transceiver module, in which:
The transceiver module, for before cell is searched in first position, obtaining the first information, the first information includes by close Each second terminal that distance communication mode is obtained from one or more second terminals near the communication device is described the History access information corresponding to one position, history access information corresponding to the first position indicate that the first position is It is no that there are cells；
The processing module, for determining that search parameter of the communication device in the first position takes according to the second information Value, second information includes the first information；
The transceiver module, is also used in the first position, searches for cell according to the value of described search parameter.
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