CN101646225B - Information acquisition method and information acquisition terminal - Google Patents
Information acquisition method and information acquisition terminal Download PDFInfo
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- CN101646225B CN101646225B CN200810142346XA CN200810142346A CN101646225B CN 101646225 B CN101646225 B CN 101646225B CN 200810142346X A CN200810142346X A CN 200810142346XA CN 200810142346 A CN200810142346 A CN 200810142346A CN 101646225 B CN101646225 B CN 101646225B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012790 confirmation Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 description 7
- 101150096310 SIB1 gene Proteins 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention discloses an information acquisition method, which comprises the step of dividing a home base station HNB identification field contained in a physical cell identifier PCI into identification fields of a closed subscriber group home NodeB CSG HNB and an open home NodeB Open HNB. The method further concretely comprises the steps of: acquiring the PCI of an adjacent cell and confirming the type of the adjacent cell according to the PCI; and acquiring a system broadcast message of the adjacent cell according to the type of the adjacent cell and access constraint information of a terminal. The embodiment of the invention also provides the terminal. The method and the terminal can shorten the measuring time of the terminal and reduce the power consumption of the terminal.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to an information obtaining method and a terminal.
Background
With the rapid development of mobile communication technology, more and more mobile communication systems are present, system devices are diversified to meet user requirements, and home indoor coverage, enterprise-level internal coverage base stations and other limited networks are generated. Such a network may be a Home base station (HNB, Home NodeB), a Home cell, etc., as well as a restricted network of some specific frequency layers. The HNB is divided into HNB of limited Subscriber Group (CSG) and open HNB (open HNB), in CSG network, if the user subscribes to the CSG Group or is added to the CSG Group by the owner of the CSG, the user is allowed to normally reside and apply for service in the CSG HNB, from the network perspective, one CSG may comprise one cell or a plurality of cells, and the user which is not subscribed and added to the CSG by the owner of the CSG cannot normally reside in the CSG HNB or initiate normal service; for an Open HNB, any user access is allowed if the cell is not already fully loaded.
Currently, in Long Term Evolution (LTE), a terminal distinguishes an HNB Cell from a macro Cell by reading a Physical Cell Identity (PCI) of the Cell, and specifically, when the terminal triggers a search for an adjacent HNB Cell, the terminal first reads the PCI of the adjacent Cell and distinguishes the HNB Cell from the macro Cell by the PCI. When the cell is an HNB cell, the terminal also needs to read an indication (Indicator) in the System broadcast message Block 1(SIB1, System Information Block1) to distinguish whether the HNB cell is a CSG HNB or an Open HNB.
In the existing method for differentiating HNB types, when a terminal triggers measurement of a neighboring HNB cell, it always needs to read SIB1 of the neighboring HNB cell. For a terminal in a connected state, the system broadcast messages of the neighboring HNB cells and the required measurement GAPs (GAPs) are frequently read, which prolongs the measurement time and increases the power consumption of the terminal.
Disclosure of Invention
The embodiment of the invention provides an information acquisition method and a terminal, and aims to solve the problems of long terminal measurement time and high power consumption in the prior art.
The embodiment of the invention provides an information acquisition method, which comprises the following steps: dividing a home base station (HNB) identification field contained in a Physical Cell Identification (PCI) into identification fields of a restricted subscriber group (CSG) HNB and an Open type home base station (Open HNB), and specifically comprising the following steps: acquiring the PCI of an adjacent cell, and confirming the type of the adjacent cell according to the PCI; and acquiring the system broadcast message of the adjacent cell according to the type of the adjacent cell and the access limited information of the terminal.
An embodiment of the present invention further provides a terminal, where the terminal includes: the identification acquisition module is used for acquiring the PCI of the adjacent cell; the type confirmation module is used for confirming the type of the adjacent cell according to the PCI acquired by the identification acquisition module; and the system broadcast message acquisition module is used for reading the system broadcast messages of the adjacent cells according to the cell types confirmed by the type confirmation module and the access limited information of the terminal.
The method and the terminal provided by the embodiment of the invention ensure that the terminal can determine the type of the cell according to the PCI, and further obtain the system broadcast message of the cell according to the type of the cell and the self access limited information, thereby reducing the measurement time of the terminal and reducing the power consumption of the terminal.
Drawings
Fig. 1 is a schematic flowchart of an information obtaining method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of another information acquisition method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
In the embodiment of the present invention, the existing PCI information is redefined, as shown in table 1, the PCI in the prior art includes an identification field of a macro cell and an identification field of an HNB, in the embodiment of the present invention, the HNB identification field of the PCI is further divided into identification fields of a CSG HNB and an Open HNB, and the HNB identification field is specifically divided.
TABLE 1
The embodiment of the invention provides an information acquisition method, which comprises the following steps: acquiring the PCI of an adjacent cell, and confirming the type of the cell according to the PCI; and acquiring the system broadcast message of the cell according to the type of the cell and the access limited information of the terminal. The following describes an information acquisition method provided by the embodiment of the present invention in detail.
Referring to fig. 1, an embodiment of the present invention provides an information obtaining method, where in the embodiment of the present invention, access restriction information of a terminal is: the terminal can access at least one CSG HNB, and tries to access a certain CSG HNB in a connection state, wherein the process comprises the following steps:
s101, the terminal triggers and searches for the adjacent CSGHNB according to the related information of the white list (Whitelist).
In this embodiment, the whitelist is used to store relevant information of the CSG HNB that the terminal can access, such as an identifier ID, location information, a surrounding wireless environment, and the like of the CSG HNB.
S102, the terminal acquires the PCI of the adjacent CSG HNB cell, when the adjacent cell is determined to be an Open HNB or a macro cell according to the PCI, the terminal does not read the system broadcast message, and when the adjacent cell is determined to be the CSG HNB according to the PCI, S103 is executed.
S103, the terminal requests the GAP to the network side and reads the system broadcast message through the GAP configured on the network side.
In this embodiment, the terminal reads the system broadcast message, and acquires the CSG ID included in the SIB1 in the system broadcast message.
S104, if the terminal can access the CSG HNB according to the CSG ID confirmation, S105 is executed, otherwise, S102 is executed.
In this embodiment, if the whitelist includes the CSG ID, the terminal determines that the CSG HNB can be accessed, otherwise, the terminal cannot access.
And S105, the terminal is switched or reselected to the CSG HNB.
In this embodiment, the handover or reselection procedure is similar to that in the prior art, and is not described herein again.
In the embodiment of the invention, the terminal which can be accessed to at least one CSG HNB reads the system broadcast message when confirming that the cell is the CSG HNB according to the expanded PCI identification field, thereby obtaining the cell information, reducing the measurement time and reducing the power consumption of the terminal.
Referring to fig. 2, an embodiment of the present invention provides an information obtaining method, where in the embodiment of the present invention, access restriction information of a terminal is: the terminal can not access any CSG HNB, and tries to access an Open HNB in a connection state, wherein the process comprises the following steps:
s201, the terminal triggers and searches for the adjacent Open HNB.
And S202, the terminal acquires the PCI of the adjacent cell, does not read the system broadcast message when confirming that the adjacent cell is a macro cell and a CSG HNB according to the PCI, and executes S203 when confirming that the adjacent cell is an Open HNB cell according to the PCI.
S203, the terminal requests the GAP to the network side and reads the system broadcast message through the GAP configured on the network side.
In this embodiment, the terminal reads the system broadcast message and acquires the information of the Open HNB, such as the state information.
And S204, if the terminal confirms that the Open HNB can be accessed according to the acquired state information of the Open HNB, executing S205, otherwise, executing S202.
In this embodiment, the state information of the Open HNB may be load information, and when the Open HNB is fully loaded, the terminal may not be accessed, otherwise, the terminal may be accessed.
And S205, the terminal is switched or reselected to the Open HNB.
In this embodiment, the handover or reselection procedure is similar to that in the prior art, and is not described herein again.
In the embodiment of the invention, the terminal which can not be accessed to any CSG HNB reads the system broadcast message when confirming that the cell is an Open HNB according to the expanded PCI identification field, thereby obtaining the cell information, reducing the measurement time and reducing the power consumption of the terminal.
The embodiment of the present invention further provides a terminal, which includes an identifier obtaining module 301, a type determining module 302, and a system broadcast message obtaining module 303, wherein,
an identifier obtaining module 301, configured to search for an adjacent cell and obtain a PCI of the adjacent cell.
A type confirmation module 302, configured to confirm the type of the neighboring cell according to the PCI acquired by the identifier acquisition module 301.
A system broadcast message obtaining module 303, configured to read a system broadcast message according to the cell type determined by the type determining module 302 and the access restricted information of the terminal. Specifically, when the terminal may access at least one CSG HNB and the type confirmation module 302 confirms that the neighboring cell is a CSG HNB, the system broadcast message acquisition module 303 reads the system broadcast message and acquires the CSG ID, otherwise, the system broadcast message acquisition module does not read the CSG ID; when the terminal may not access any CSG HNB and the type determination module 302 determines that the neighboring cell is an Open HNB, the system broadcast message acquisition module 303 reads the system broadcast message and acquires information of the Open HNB, otherwise, the system broadcast message is not read.
The terminal further includes an access module 304, configured to access the HNB cell when it is determined that the HNB cell can be accessed according to the system broadcast message acquired by the system broadcast message acquisition module 303, and otherwise, notify the identifier acquisition module 301 to continue acquiring the PCI of the neighboring cell.
The above description is only a specific implementation of the embodiments of the present invention, but the scope of the embodiments of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are included in the scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An information acquisition method is characterized in that an identification field of a home base station (HNB) contained in a Physical Cell Identification (PCI) is divided into identification fields of a restricted subscriber group (CSG (home base station) HNB and an Open home base station (Open HNB), and the method comprises the following steps:
acquiring the PCI of an adjacent cell, and confirming the type of the adjacent cell according to the PCI;
and acquiring the system broadcast message of the adjacent cell according to the type of the adjacent cell and the access limited information of the terminal.
2. The method of claim 1, wherein the access restriction information of the terminal is specifically: the terminal can access at least one CSG HNB or the terminal cannot access any CSG HNB.
3. The method of claim 2, wherein the obtaining the system broadcast message of the neighboring cell according to the type of the neighboring cell and the access restriction information of the terminal specifically comprises:
the terminal acquires a system broadcast message of the adjacent cell only when the terminal can access at least one CSG HNB and the PCI indicates that the adjacent cell is a CSG HNB;
or,
and only when the terminal cannot access any CSG HNB and the PCI indicates that the adjacent cell is an Open HNB, the terminal acquires the system broadcast message of the adjacent cell.
4. The method of claim 3, wherein the method further comprises:
and when the terminal confirms that the terminal can be accessed to the adjacent cell according to the system broadcast message, the terminal accesses to the adjacent cell, otherwise, the terminal acquires the PCI of the adjacent cell, confirms the type of the adjacent cell according to the PCI and acquires the system broadcast message of the adjacent cell according to the type of the adjacent cell and the access limited information of the terminal.
5. A terminal, characterized in that the terminal comprises:
an identifier obtaining module, configured to obtain a physical cell identifier PCI of an adjacent cell;
the type confirmation module is used for confirming the type of the adjacent cell according to the PCI acquired by the identification acquisition module; and
and the system broadcast message acquisition module is used for acquiring the system broadcast messages of the adjacent cells according to the cell types confirmed by the type confirmation module and the access limited information of the terminal.
6. The terminal of claim 5, wherein the system broadcast message acquiring module is specifically configured to acquire the system broadcast message of the neighboring cell when the terminal has access to at least one CSG HNB and the type confirmation module confirms that the neighboring cell is the CSG HNB; or, when the terminal cannot access any CSG HNB and the type confirmation module confirms that the adjacent cell is an Open home base station (Open) HNB, acquiring a system broadcast message of the adjacent cell.
7. The terminal according to claim 5 or 6, wherein the terminal further comprises an access module, configured to access the neighboring cell when it is confirmed that the neighboring cell can be accessed according to the system broadcast message acquired by the system broadcast message acquisition module, otherwise, notify to send a notification to the identity acquisition module;
the identifier obtaining module is further configured to obtain the PCI of the neighboring cell according to the notification sent by the access module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142346XA CN101646225B (en) | 2008-08-07 | 2008-08-07 | Information acquisition method and information acquisition terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810142346XA CN101646225B (en) | 2008-08-07 | 2008-08-07 | Information acquisition method and information acquisition terminal |
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| CN101646225A CN101646225A (en) | 2010-02-10 |
| CN101646225B true CN101646225B (en) | 2011-09-14 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348286A (en) | 2008-09-25 | 2012-02-08 | 华为技术有限公司 | Method for allocating cell identity and base station |
| CN102158865B (en) * | 2010-02-11 | 2013-12-18 | 华为技术有限公司 | Cell system information acquisition method and device |
| CN102291705B (en) * | 2010-06-21 | 2015-09-16 | 中兴通讯股份有限公司 | Connection control method in a kind of cell update and system |
| CN103052123A (en) * | 2011-10-13 | 2013-04-17 | 中兴通讯股份有限公司 | Method, device and equipment for recognizing small cell in heterogeneous network |
| CN103096398B (en) | 2011-11-08 | 2016-08-03 | 华为技术有限公司 | A kind of method and apparatus of network switching |
| EP2901759B1 (en) * | 2012-05-14 | 2020-04-01 | Nokia Solutions and Networks Oy | Extended access barring for csg cells |
| EP2869636B1 (en) | 2012-08-10 | 2020-03-18 | Huawei Technologies Co., Ltd. | Mobility control method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198188A (en) * | 2008-01-03 | 2008-06-11 | 中兴通讯股份有限公司 | Method for storing cell system information across network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101198188A (en) * | 2008-01-03 | 2008-06-11 | 中兴通讯股份有限公司 | Method for storing cell system information across network |
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