WO2015131460A1

WO2015131460A1 - Cell network search method and device, and terminal

Info

Publication number: WO2015131460A1
Application number: PCT/CN2014/079521
Authority: WO
Inventors: 于铁栓; 杨宜明
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-03-07
Filing date: 2014-06-09
Publication date: 2015-09-11
Also published as: CN104902538A

Abstract

Provided are a cell network search method and device, and a terminal. The method comprises: acquiring the type of a network which is currently registered by a terminal; when the type of the network is the first type of network, judging whether the first type of network cell which is currently registered by the terminal is a cell of the second type of network cell which the terminal has resided in and has not been found, wherein the data rate of the second type of network is greater than the data rate of the first type of network; and if the first type of network cell which is currently registered by the terminal is the cell of the second type of network cell which the terminal has resided in and has not been found, according to a pre-set first time interval, searching the second type of network in the cell, otherwise, according to a pre-set second time interval, searching the second type of network in the cell, wherein the first time interval is greater than the second time interval. By means of the technical solution provided in the present invention, the second type of network can be searched in the cell according to different time intervals, thereby avoiding the waste of the power consumption of the terminal.

Description

The present invention relates to the field of communications, and in particular, to a cell network search method, apparatus, and terminal. Background technique

LTE (Long Term Evolution) is a long-term evolution of the UMTS (Universal Mobile Telecommunications System) technology led by the 3GPP (3rd Generation Partnership Project). LTE is a transition technology between 3G and 4G. It is a global standard of 3.9G. It uses OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multi-input Multi-output) as its The only standard for wireless network evolution is to improve and enhance 3G air access technology. This technology based on OFDM/FDMA (frequency division multiple access) can be regarded as "quasi 4G" technology. The peak rate of downlink 100 Mbit/s and uplink 50 Mbit/s can be provided under the 20 MHz spectrum bandwidth. It improves the performance of cell edge users, increases cell capacity and reduces system delay. Operators in most countries in the world have already built or are building LTE networks. The three major operators in China (Mobile, China Unicom, and Telecom) have also obtained 4G licenses and set up their own LTE networks. Faced with the huge business opportunities that LTE is about to bring, major manufacturers are starting to seize the market. In addition to equipment manufacturers competing for the market share of various operators, various terminal manufacturers have also launched or are developing terminal devices supporting LTE standards. However, LTE network providers are in their infancy. At present, even in developed countries in Europe and America, LTE network coverage is not complete. The LTE network of our national operators is currently only built in some areas of several major cities. That is to say, the LTE network cannot cover all areas at one time, and the construction of the LTE network is a step-by-step process. In this context, it is inevitable that mobile phones can register for LTE networks in some places, and some places cannot search for LTE networks, so they have to search for 2G/3G networks and register, and return to LTE networks. When the area is covered, switch to the LTE network. When the mobile phone registers with the 2G/3G network, according to the 3GPP protocol, the mobile phone starts a timer and periodically searches for the LTE network. If the mobile phone arrives in a cell and finds that the LTE network was not searched when it came to the cell last time, it is likely that the cell will still not search for the LTE network this time. If the mobile phone is still searching for LTE at a fixed time interval, It is bound to cause a waste of mobile phone power consumption. In summary, when the terminal performs a network search, if the search is performed at a fixed time interval without distinction, in some cases, power consumption is wasted. SUMMARY OF THE INVENTION In order to solve the above problems, an embodiment of the present invention provides a cell network search method, device, and terminal, which can determine whether a first type of network cell currently registered by a terminal has been parked by the terminal and has not searched for a second. The cell of the type network, and according to different determination results, searches for the second type of network in the cell according to different time intervals, thereby avoiding waste of power consumption of the terminal. An embodiment of the present invention provides a cell network search method, including: acquiring a network type currently registered by a terminal; and determining, when the network type is a first type network, whether the first type of network cell currently registered by the terminal is a cell in which the terminal has been parked and has not searched for the second type of network cell, where the data rate of the second type of network is greater than the data rate of the first type of network; when the terminal is currently registered with the first type of network cell When the cell that has been in the terminal and has not searched for the second type of network cell, searches for the second type of network in the cell according to the preset first time interval, otherwise, according to the preset second time And searching for a second type of network in the cell, where the first time interval is greater than the second time interval. Preferably, the determining whether the first type of network cell currently registered by the terminal is a cell that the terminal has camped on and does not search for the second type of network cell, specifically: acquiring the terminal station stored in the terminal a list of reserved cells, where the terminal camped cell list includes a cell list that the terminal has camped on and searches for a second type of network cell, and a cell list that the terminal has camped on and does not search for the second type of network cell. Determining, according to the terminal camped cell list, whether the first type of network cell currently registered by the terminal is a cell that the terminal has camped on; when the cell is a cell that the terminal has camped on, Determining whether the cell is a cell in which the terminal has camped and does not search for a second type of network cell. Preferably, after searching for the second type of network in the cell, the method further includes: when searching for the second type of network in the cell, saving the cell to the terminal and having searched In the cell list of the second type of network cell, otherwise, the cell is saved in a cell list in which the terminal has camped and does not search for the second type of network cell. Preferably, the first type of network is a 2G or 3G network, and the second type of network is a long term evolution LTE network. The embodiment of the present invention further provides a cell network search device, including: an obtaining module, configured to acquire a network type currently registered by the terminal; and a determining module, configured to determine, when the network type is a first type network, the terminal Whether the currently registered first type of network cell has been parked by the terminal and has not searched for the second type. a cell of a network cell, wherein a data rate of the second type of network is greater than a data rate of the first type of network; and a search module, configured to: when the first type of network cell currently registered by the terminal is a host When the cell of the second type of network cell is not searched, the second type of network is searched in the cell according to the preset first time interval, otherwise, the cell is searched according to the preset second time interval. a second type of network, where the first time interval is greater than the second time interval. Preferably, the device further includes: a storage module, configured to store a terminal resident cell list; the determining module includes: a first acquiring unit, configured to acquire a terminal resident cell list stored in the terminal, the terminal The camped cell list includes a cell list that the terminal has camped on and searches for the second type of network cell, and a cell list that the terminal has camped on and does not search for the second type of network cell; the first determining unit, setting Determining, according to the terminal camped cell list, whether the first type of network cell currently registered by the terminal is a cell that the terminal has camped on; the second determining unit is configured to: when the cell is the terminal When the cell is camped, it is determined whether the cell is a cell that the terminal has camped on and does not search for the second type of network cell. Preferably, the device further includes: a saving module, configured to save the cell to the terminal that has been parked and search for a second type of network cell when searching for a second type of network in the cell In the cell list, otherwise, the cell is saved in the cell list where the terminal has camped and the second type of network cell is not searched. An embodiment of the present invention further provides a terminal, including the cell network search device as described above. The foregoing technical solutions provided by the embodiments of the present invention have the following beneficial effects: The embodiment of the present invention provides a cell network search method, device, and terminal, which can determine whether a first type of network cell currently registered by the terminal is a resident of the terminal. The cell of the second type of network is not searched, and the search of the second type of network is performed in the cell according to different determination results according to different determination results, thereby avoiding waste of power consumption of the terminal. 1 is a flowchart of a cell network search method according to Embodiment 1 of the present invention; FIG. 2 is a schematic structural diagram of a cell network search device according to Embodiment 1 of the present invention; FIG. 4 is a data structure diagram stored in an LTE campable module and an LTE non-resident module according to Embodiment 2 of the present invention; FIG. 5 is a flowchart of a cell network search method according to Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to make the technical problems, technical solutions, and advantages of the present invention more comprehensible, the following detailed description will be made in conjunction with the accompanying drawings and specific embodiments. The present invention is directed to the prior art, when performing cell network search, searching according to a fixed time interval, thereby causing waste of power consumption of the terminal, providing a cell network search method, device, and terminal, which can determine the current terminal Whether the registered first type of network cell is a cell that the terminal has camped on and does not search for the second type of network, and performs a second type of network in the cell according to different determination results according to different time intervals. The search thus avoids the waste of terminal power consumption. FIG. 1 is a flowchart of a cell network search method according to Embodiment 1 of the present invention. As shown in the figure, the method includes: Step S100: Obtain a network type that is currently registered by a terminal; Step S102: When the network type is a first type of network, determine whether the first type of network cell currently registered by the terminal is The cell that has been in the terminal and has not searched for the second type of network cell, wherein the data rate of the second type of network is greater than the data rate of the first type of network; Step S104, when the terminal is currently registered When a type of network cell is a cell that has been used by the terminal and has not searched for the second type of network cell, searching for the second type of network in the cell according to the preset first time interval, otherwise, according to the preset And searching for the second type of network in the cell, where the first time interval is greater than the second time interval. In the foregoing technical solution, since the data rate of the second type network is greater than the data rate of the first type network, the first network is the second type network, that is, when there is a second type network available, it should be used. The second type of network, firstly, obtains the network type currently registered by the terminal, and determines whether the network type currently registered by the terminal is the first network type. When the network type network currently registered by the terminal is the second type network, no network search is required, only When the network type currently registered by the terminal is the first network type, determining whether the terminal has previously camped on the first type of network cell currently registered by the terminal, and not searching for the second type of network in the first type of network cell, if The terminal has camped in the first type of network cell, that is, the terminal has visited the cell, and does not search for the second type network in the first type of network cell, that is, the terminal has searched the second type network in the cell. If you don't search, you can follow the longer time when searching for the second type of network. Search intervals, or according to a short time interval to search, so that when the terminal has the first type When the second type of network is not searched in the first type of network cell, the number of searches for the second type of network is reduced, and the power consumption of the terminal is avoided. Preferably, the determining whether the first type of network cell that is currently registered by the terminal is a cell that has been in the terminal and has not searched for the second type of network cell, may be specifically: acquiring the terminal stored in the terminal a camped cell list, where the terminal camped cell list includes a cell list that the terminal has camped on and searches for a second type of network cell, and a cell that the terminal has camped on and does not search for the second type of network cell Determining, according to the terminal camped cell list, whether the first type of network cell currently registered by the terminal is a cell that the terminal has camped on; when the cell is a cell that the terminal has camped on; And determining whether the cell is a cell that the terminal has camped on and does not search for a second type of network cell. In the foregoing technical solution, a terminal camped cell list is stored in the terminal, where the list includes a cell list that the terminal once camped on and searches for the second type of network, that is, the cell is a cell that the terminal has camped on, and A second type of network can be searched in the cell, and the terminal camped cell list further includes a cell list that the terminal has parked and does not search for the second type of network, that is, the cell is a cell that the terminal has camped on, and No second type of network was searched in these cells. According to the terminal camped cell list, it can be determined whether the first type of network cell currently registered by the terminal is a cell that the terminal has previously camped on, that is, if the first type of network cell is in the terminal camped cell list, the first type is indicated. The network cell is a cell that the terminal has camped on. Otherwise, the first type of network cell is a cell that the terminal has not camped on, that is, the terminal has never been to the first type of network cell. When the first type of network cell is a cell that the terminal has camped on, it is determined whether the cell is a cell that has been parked by the terminal and does not search for the second type of network, that is, when the first type of network cell is in the terminal The cell list that has been camped on and searches for the second type of network indicates that the first type of network cell is not the cell that the terminal once camped on and does not search for the second type of network, otherwise it indicates that the first type of network cell is the terminal once A cell that has not been searched for the second type of network may be used. Similarly, it may be determined whether the first type of network cell is a terminal station according to a cell list that the terminal has camped on and does not search for the second type of network. A cell that has left and has not searched for the second type of network. Certainly, the method may also be used to determine whether the first type of network cell is a cell that has been parked by the terminal and has not searched for the second type of network. For example, the terminal may be queried according to the current type of network cell information currently registered by the terminal. Search information of a second type of network in the first type of network cell in the first type of network cell; information of all cells may be stored in the terminal, including whether the terminal has camped in and whether the terminal has been in the cell Searching for information such as the second type of network; it is also possible to store only the cells in the terminal that have once camped on the terminal and have not searched for the second type of network. Preferably, after searching for the second type of network in the cell, the method may further include: when searching for the second type of network in the cell, saving the cell to the terminal and searching for Go to the cell list of the second type of network cell, otherwise, save the cell to the terminal and have not searched for the second class. In the cell list of the type network cell. Of course, other ways can be used to store the list, for example, the list can be edited directly by the user. In the foregoing technical solution, searching for a second type of network in the cell according to different time intervals, and when searching, saving the cell to a cell list that the terminal has camped on and searches for a second type of network cell. Otherwise, the cell is saved to a cell list in which the terminal has camped and has not searched for the second type of network cell. Thus, when the cell comes again, it can be determined according to the list whether the cell is a cell in which the terminal has camped and the second type of network is not searched. Preferably, the first type of network is a 2G or 3G network, and the second type of network is a long term evolution LTE network. FIG. 2 is a schematic structural diagram of a cell network search apparatus according to Embodiment 1 of the present invention. As shown in the figure, the cell network search device 20 includes: an obtaining module 21, configured to acquire a network type currently registered by the terminal; and a determining module 22, configured to determine, when the network type is a first type network, the terminal Whether the currently registered first type of network cell is a cell in which the terminal has camped and does not search for the second type of network cell, where the data rate of the second type network is greater than the data rate of the first type network; The module 23 is configured to: when the first type of network cell currently registered by the terminal is a cell that has been camped by the terminal and does not search for a second type of network cell, according to a preset first time interval, Searching for the second type of network in the cell, and searching for the second type of network in the cell according to the preset second time interval, where the first time interval is greater than the second time interval. Preferably, the device further includes: a storage module, configured to store a terminal resident cell list; the determining module includes: a first acquiring unit, configured to acquire a terminal resident cell list stored in the terminal, the terminal The camped cell list includes a cell list that the terminal has camped on and searches for the second type of network cell, and a cell list that the terminal has camped on and does not search for the second type of network cell; the first determining unit, setting Determining, according to the terminal camped cell list, whether the first type of network cell currently registered by the terminal is a cell that the terminal has camped on; the second determining unit is configured to: when the cell is the terminal When the cell is camped, it is determined whether the cell is a cell that the terminal has camped on and does not search for the second type of network cell. Preferably, the device further includes: a saving module, configured to save the cell to the terminal that has been parked and search for a second type of network cell when searching for a second type of network in the cell In the cell list, Otherwise, the cell is saved to a list of cells in which the terminal has camped and has not searched for the second type of network cell. An embodiment of the present invention further provides a terminal, including the cell network search device as described above. FIG. 3 is a schematic structural diagram of a cell network search apparatus according to Embodiment 2 of the present invention. As shown, the cell network search device 30 includes:

LTE campable module 31: The module is a 2G/3G cell id list, and the list stores a series of 2G/3G cell id lists, where the cell stored in the cell where the mobile phone once resides and in which the LTE network is searched is stored. When the mobile phone registers with the cell in the list, the BSR-Timer selection module 34 selects a shorter LTE search interval.

LTE non-resident module 32: The module is a 2G/3G cell id list, and the list stores a series of 2G/3G cell id lists, where the cell stored in the cell where the mobile phone once resided and has not searched for the LTE network is stored. When the handset registers with the cell in the list, the BSR-Timer selection module 34 selects a longer LTE search interval. The cell of this list indicates that the LTE network was not searched when the mobile phone last registered the cell. However, it is not excluded that the LTE network can be searched in the cell as the network is optimized by the operator. Therefore, for the cell in this list, if the LTE network is searched for in the preset time interval, when there is still no LTE in it. When the network is used, the power consumption of the terminal is wasted. However, if the LTE network is not searched, when there is already an LTE network, the LTE network should be registered but not registered. Therefore, The cells in the list should be extended by a preset time interval, and the LTE network is searched for in the extended time interval. The cell id obtaining module 33 is configured to obtain a cell id of the 2G/3G network on the current mobile phone registration, and compare the id with an id stored in the list of the LTE campable module 31 and/or the LTE non-resident module 32, thereby determining Which list the id is stored in, and the comparison result is sent to the BSR-Timer selection module.

BSR-Timer Selection Module 34: This module provides a search LTE time interval value. When the 2G/3G network cell id currently registered on the mobile phone is included in the LTE campable module, or is not included in any module, it provides a shorter LTE search. Time interval, when the 2G/3G network cell id on the mobile phone registration is included in the LTE non-resident module, start a longer LTE search interval

The LTE search module 35: periodically initiates a search of the LTE network according to the time interval specified by the BSR-Timer selection module 34 according to whether the cell on the current mobile phone registration is included in the LTE campable module 31 or the LTE campable module 32. 2G/3G cell storage module 36: When the mobile phone is in a cell that has never been reached, and the cell id is not included in the LTE campable module 31 or the LTE campable module 32, according to whether the current cell can register for LTE, the cell is used. The id is stored in the LTE campable module 31 or the LTE campable module 32. The interaction process of the above modules may be as follows: When the mobile phone is in the normal registration state of LTE, no interaction occurs between the modules. When the mobile phone registers with the 2G/3G network, the cell id obtaining module 33 acquires the cell id of the current 2G/3G network. The cell id acquisition module 33 compares the cell id with the LTE campable module 31 and/or the LTE campable module 32. If the current cell id is not in any module, the cell id is sent to the 2G/3G cell storage module 36, and the timer is started by the BSR-Timer selection module 34, so that the mobile phone searches for the LTE network at a preset time interval, and at the same time The timer value is sent to the LTE search module 35. If the current cell id is in the LTE campable module 31, the cell id is sent to the 2G/3G cell storage module 36, and the BSR-Timer selection module 34 starts a timer, so that the mobile phone searches for the LTE network at a preset time interval. The timer value is simultaneously sent to the LTE search module 35. If the current cell id is in the LTE non-resident module 32, the cell id is sent to the 2G/3G cell storage module 36, and the timer is started by the BSR-Timer selection module 34 to extend the preset time interval to search for the LTE network, and the timing is simultaneously The device value is sent to the LTE search module 35.

The LTE search module 35 periodically searches for the LTE network based on the timer length determined by the BSR-Timer selection module 34, and passes the result of searching for the LTE network to the 2G/3G cell storage module 36.

The 2G/3G cell storage module 36 stores the cell id sent by the cell id acquisition module 33 in an appropriate module according to the search result of the LTE search module 35. If the LTE search module searches for the LTE network, the cell id is stored in the LTE campable module 31, otherwise it is stored in the LTE campable module 32. 4 is a data structure diagram stored in an LTE campable module and an LTE non-resident module according to Embodiment 2 of the present invention. As shown in the figure, the system ID is a list number, and the cell ID indicates the id of the cell stored in the list. The LTE resident module stores a series of cell ids, that is, the cell ID field in the figure, indicating that these cells are in the cell. There is an available LTE network. Therefore, when the mobile phone registers with one of the LTE campable modules, the search may be performed according to the second time interval, where the second time interval may be a regularly set LTE search time interval; The resident module stores a series of cell ids, as shown in the cell ID field in the figure, indicating that the mobile phone did not search for the LTE network when it was last registered to these cells. Therefore, when the mobile phone registers again, the LTE non-resident module is registered. When one cell is in the middle, the search may be performed according to the first time interval, where the first time interval is greater than the second time interval. FIG. 5 is a flowchart of a cell network search method according to Embodiment 2 of the present invention. As shown in the figure, the method includes: Step S500: Obtain a network type that is currently registered by the terminal; Step S502, determine whether the network type currently registered by the terminal is an LTE network, and if the currently registered network type is not an LTE network, proceed to step S504. Step S504, the cell id obtaining module acquires the id of the currently registered 2G or 3G network cell; Step S506, the id of the currently registered 2G or 3G network cell is sent to the 2G/3G cell storage module, so that the 2G/3G cell is stored. The module can store the id of the cell into the corresponding module according to the LTE network search result. Step S508, determining whether the id of the currently registered 2G or 3G network cell is in the terminal camped cell list stored by the terminal, and when the id is in the terminal camping cell list, proceeding to step S510; otherwise, proceeding to step S514; The cell in the list of the reserved cell stores the cell in which the terminal has camped, that is, the cell that the terminal has visited. For the cell that has been visited, the terminal searches for the LTE network, if the currently registered 2G or 3G network cell The id in the terminal camped cell list indicates that the terminal has searched the LTE network in the 2G or 3G network cell. The terminal camped cell list includes an LTE campable module and an LTE campable module. If the id of the currently registered 2G or 3G network cell is not stored in the LTE campable module and is not stored in the LTE campable module, it indicates that the terminal is not currently in the LTE campable module. The registered cell resides in the cell, so the LTE network can be searched therein at preset time intervals. Step S510, determining whether the id of the currently registered 2G or 3G network cell is in the LTE campable module stored by the terminal, if not, proceeding to step S510, otherwise, proceeding to step S512; if the currently registered 2G or 3G network cell The id is not in the LTE campable module, that is, the id of the currently registered 2G or 3G network cell is in the LTE non-resident module, that is, the LTE network is not previously searched in the cell. Step S512, the BSR-Timer selection module starts the timer of the long interval, and proceeds to step S514. For example, the timer of the long interval is timed at intervals of 10 minutes. Step S513, the BSR-Timer selection module starts the timer of the short time interval, and proceeds to step S514. For example, the timer of the short time interval is timed at intervals of 3 minutes. In step S516, the LTE search module searches for the LTE network according to the time interval set by the timer, and the timer is a long-time interval timer or a short-time interval timer, so that the LTE network can be searched according to different time intervals. Step S518, the 2G/3G cell storage module stores the id of the currently registered 2G or 3G network cell into the corresponding module according to the LTE network search result; in this step, if the currently registered 2G or 3G network cell has no id The LTE portable module is not stored in the LTE non-resident module, and the 2G/3G cell storage module adds the id of the currently registered 2G or 3G network cell to the corresponding module according to the LTE network search result, if currently The id of the registered 2G or 3G network cell is already stored in the LTE campable module, and the LTE search result indicates that the LTE network is not searched in the cell, and the 2G/3G cell storage module needs to use the cell id from the LTE campable module. Delete, and store it in the LTE non-resident module. If the id of the currently registered 2G or 3G network cell is already stored in the LTE non-resident module, and the LTE search result indicates that the LTE network is searched in the cell, then 2G The /3G cell storage module needs to delete the cell id from the LTE non-resident module and store it in the LTE campable module. The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention. Industrial Applicability The technical solution provided by the embodiments of the present invention can be applied to a search for a cell network in a mobile communication, for example, applying it to a mobile terminal, by determining whether the first type of network cell currently registered by the terminal is the The cell that has been parked by the terminal and has not searched for the second type of network, and searches for the second type of network in the cell according to different determination results, thereby avoiding waste of power consumption of the terminal. .

Claims

Claim

A cell network search method, comprising: acquiring a network type currently registered by a terminal;

When the network type is the first type of network, it is determined whether the first type of network cell currently registered by the terminal is a cell that the terminal has camped on and does not search for the second type of network cell, where the second type The data rate of the network is greater than the data rate of the first type of network; when the first type of network cell currently registered by the terminal is a cell that the terminal has camped on and does not search for the second type of network cell, according to the pre- The first time interval is set to search for the second type of network in the cell. Otherwise, the second type of network is searched in the cell according to the preset second time interval, where the first time interval is greater than The second time interval is described.

2. The method according to claim 1, wherein the determining whether the first type of network cell currently registered by the terminal is a cell that has been camped by the terminal and has not searched for a second type of network cell is specifically: Obtaining a terminal camped cell list stored in the terminal, where the terminal camped cell list includes a cell list that the terminal has camped on and searches for a second type of network cell, and the terminal has been parked and not searched. a cell list to the second type of network cell; determining, according to the terminal camped cell list, whether the first type of network cell currently registered by the terminal is a cell that the terminal has camped on;

When the cell is a cell that the terminal has camped on, it is determined whether the cell is a cell that the terminal has camped on and does not search for a second type of network cell.

The method of claim 2, after the searching for the second type of network in the cell, the method further includes:

When searching for a second type of network in the cell, saving the cell to a cell list that the terminal has camped on and searching for a second type of network cell, otherwise, saving the cell to the The terminal has been camped on and has not searched the cell list of the second type of network cell.

The method according to any one of claims 1-3, wherein the first type of network is a 2G or 3G network, and the second type of network is a long term evolution LTE network.

A cell network search device, comprising: an obtaining module, configured to acquire a network type currently registered by the terminal; and a determining module, configured to: when the network type is a first type network, determine that the terminal is currently registered first Whether the type network cell is a cell in which the terminal has camped and does not search for the second type of network cell, where the data rate of the second type network is greater than the data rate of the first type network; the search module is set to be When the first type of network cell that is currently registered by the terminal is a cell that has been camped by the terminal and does not search for the second type of network cell, searching for the second type in the cell according to the preset first time interval. The network searches for the second type of network in the cell according to the preset second time interval, where the first time interval is greater than the second time interval.

The device of claim 5, wherein the device further comprises: a storage module, configured to store a terminal camped cell list;

The determining module includes: a first acquiring unit, configured to acquire a terminal camping cell list stored in the terminal, where the terminal camping cell list includes that the terminal has camped on and searches for a second type of network cell a cell list and a cell list that the terminal has camped on and does not search for the second type of network cell; the first determining unit is configured to determine, according to the terminal camped cell list, the first type of network currently registered by the terminal Whether the cell is a cell that the terminal has camped on;

The second determining unit is configured to determine, when the cell is a cell that the terminal has camped on, whether the cell is a cell that the terminal has camped on and does not search for a second type of network cell.

The device according to claim 6, wherein the device further comprises: a saving module, configured to save the cell to the terminal when the second type network is searched in the cell And searching for the cell list of the second type of network cell, otherwise, saving the cell to the cell list that the terminal has camped on and does not search for the second type of network cell.

8. A terminal comprising a cell network search device according to any of claims 5-7.