CN101365172B - Precisely positioning method for user under household base station - Google Patents

Abstract

The present invention relates to the field of wireless communication, and in particular to a user positioning method in the field of cellular mobile communication. The present invention is realized through the following technical solution: a method for precise positioning of users under a home base station, which is characterized in that it includes the following steps: the network side The positioning entity collects the location information of the home base station, the network-side positioning entity comprehensively judges the location of the home base station according to the collected location information, and the network-side positioning entity judges the location of the user under the home base station according to the above-mentioned location of the home base station. Compared with the existing technology, without increasing the system cost and complexity, the reliable and accurate positioning of users under the home base station is realized by increasing the collection and judgment of the information of the attached line of the home base station and the information of adjacent macro cells.

Description

A method for precise positioning of users under home base stations

technical field

The invention relates to the field of wireless communication, in particular to a user positioning method in the field of cellular mobile communication.

Background technique

A typical wireless communication system is shown in Figure 1. The wireless communication system consists of a core network, a wireless access network and terminals. The core network is responsible for non-access layer affairs, such as billing and location management. The radio access network is responsible for the affairs of the access layer, such as the management of radio resources. The base station is a part of the wireless access network and communicates with the terminal through the air interface. A terminal refers to a device that can communicate with the network, such as a mobile phone or a laptop. Each terminal is usually only connected to one base station in the network in the uplink direction.

Applications such as emergency calling put forward the requirement for the positioning of terminal users in wireless communication systems. For general mobile communication systems, such as GSM, WCDMA and LTE systems, since the base station location is usually fixed, the approximate location of the user can be known according to the location of the base station in the cell where the user is located, and the radio signal can also be propagated from the user station to multiple stations by measuring the radio wave signal. The propagation time or time difference of two base stations can be used to further determine the position of the subscriber station. A home base station is a wireless communication base station deployed in a home or a small public place. Due to the small coverage of a home base station, terminal users under the home base station can be located by locating the home base station. However, according to the definition of femtocells, users can install and relocate femtocells by themselves, and femtocells may not be registered in time or users may not provide real information when registering, resulting in unreliable femtocell registration information on the network side; thus, how to The positioning of the users under the home base station has become a problem to be solved. The present invention proposes a method for precisely positioning the users under the home base station.

Contents of the invention

The technical problem to be solved by the present invention is a method for precise positioning of users under a home base station. In order to solve the above technical problems, the present invention is realized through the following technical solutions:

A method for precise positioning of users under a home base station, characterized in that: comprising the following steps:

A. The positioning entity on the network side collects the location information of the home base station,

B. The network-side positioning entity comprehensively judges the location of the home base station based on the collected location information,

C. The network-side positioning entity judges the location of the user under the HNB according to the location of the HNB.

The home base station location information includes home base station registration information, fixed network device information attached to the home base station, and information about adjacent macro cells measured by the home base station. The fixed network device information attached to the home base station is the detailed address information or IP address information of the user to which the home base station belongs provided by the fixed network operator.

When the femtocell accesses the system through the fixed network, it may transmit the information of the fixed network equipment to the wireless network, or may not transmit the information due to reasons such as saving signaling overhead. If the femtocell does not transmit the information of the fixed network device to which it is attached when accessing the system, then in the above step A, the network side locates the relevant entity and needs to obtain the information from the fixed network.

The present invention proposes a method for accurately locating users under the home base station. Compared with the prior art, without increasing the system cost and complexity, by increasing the information of the attached line of the home base station and the collection of adjacent macro cell information and judgment to achieve reliable and accurate positioning of users under the home base station.

Description of drawings

Fig. 1 is a kind of typical cellular mobile communication system network architecture diagram;

2 is a network architecture diagram of deploying a home base station through an ADSL access network under the LTE system of the present invention;

Fig. 3 is a flow chart of accurate positioning in the present invention.

Detailed ways

Below in conjunction with accompanying drawing, technical essence of the present invention is described further as follows:

As shown in Figure 2: the home base station is connected to the ADSL Modem (Asymmetric Digital Subscriber Line Modem), and the access gateway of the LTE system is connected to the DSLAM (Digital Subscriber Line Access Module). In this way, the ADSL fixed broadband access network provides relay access to the home for the home base station system, and the home base station provides small-scale mobile communication services for users. If the positioning calculation function of the LTE system is completed by the access gateway, as shown in Figure 3, the implementation process of the present invention is as follows:

1. The access gateway of the LTE system collects the home base station registration information, the location information and/or IP address information of the ADSL Modem connected to the home base station, and the adjacent macro cell information reported by the home base station;

2. The access gateway of the LTE system judges the location of the home base station according to the above information collected;

3. The access gateway of the LTE system determines the location of the user under the home base station according to the location of the home base station.

Claims (2)

1. the accurate positioning method to user under household base station, is characterized in that: comprise the steps:

A, network side position determining entity are collected family's base station position information,

B, network side position determining entity comprehensively judge the position of Home eNodeB according to the positional information of collecting,

C, network side position determining entity are according to the position of the position judgment user under household base station of above-mentioned Home eNodeB; Wherein, described femtocell positions information comprises Home eNodeB register information, the information of the contiguous macrocell that the fixed network facility information that Home eNodeB is accompanying and Home eNodeB measure.

2. accurate positioning method as claimed in claim 1, is characterized in that: the accompanying fixed network facility information of described Home eNodeB is the affiliated user's better address information of Home eNodeB or the IP address information that fixed network operator provides.