CN101568093A - Updating method of domestic base station information accessed by permission of UE - Google Patents

Abstract

A method for updating subscription information of a user equipment UE, comprising the steps of: when the subscription information of the user equipment stored in the home subsystem HSS of the entity responsible for storing the subscription information of the user equipment changes, the HSS sends the mobile management of the user equipment The entity sends a first message; after receiving the first message, the mobility management entity updates the stored subscription information for the user equipment, and sends a second message to the user equipment; the user equipment receives the second message After that, update the saved signing information. Through the method for updating the tracking area list of the home base station that the UE can access provided by the present invention, the user can update the access information of the HeNB in time, and the user equipment can enjoy the service provided by the HeNB.

Description

Method for updating home base station information that UE is allowed to access

technical field

The present invention relates to the communication field, and in particular, relates to a home base station (hereinafter referred to as HeNB) that updates UE's permission to access.

Background technique

The system architecture of SAE (System Architecture Evolution) is shown in Fig. 1 . The following is a description of the SAE system structure in Figure 1.

User equipment 101 (hereinafter referred to as UE) is a terminal device for receiving data. EUTRAN (Evolved Global Terrestrial Radio Access Network) 102 is a wireless access network in the evolution system SAE, also allowed to be called ENB, and is used to provide LTE (Long Term Evolution) mobile phones with an interface for accessing wireless networks, and is connected to the mobile phone The mobility management entity MME103 and the user plane entity 104 serving gateway are connected through the S1 interface.

MME 103 is responsible for managing the mobile context and session context of the user equipment, and saving the user's security-related information. The service gateway 104 mainly provides functions of the user plane. The S1-MME interface is responsible for establishing a radio access bearer for the UE, and forwarding the message sent by the UE to the MME from the radio access network. The combined function of the MME 103 and the Serving Gateway 104 is somewhat similar to that of the original SGSN (General Packet Radio Service (hereinafter referred to as GPRS) Support Node) 106 . The MME and the serving gateway 104 may be in the same physical entity. The PDN (Packet Data Network) gateway 105 is responsible for billing, lawful interception and other functions. The serving gateway and the PDN gateway may be in the same physical entity.

In the prior art, the SGSN 106 provides routing for data transmission in UMTS. The existing SGSN finds the corresponding gateway GPRS support node (hereinafter referred to as GGSN) according to the access point name (hereinafter referred to as APN). HSS (Home Home Subsystem) 107 is the Home Home Subsystem of the user equipment, which is responsible for saving user information, including the current location of the user equipment, the address of the service node, the security-related information of the user, and the packet data protocol activated by the user equipment (hereinafter referred to as PDP) context and the like. PCRF (Policy Charging Rules and Functions) 108 provides Qos policies and charging criteria through the S7 interface.

Usually, the user data stream arrives at the service gateway 104 through the PDN gateway 105, and the service gateway 104 sends the data to the ENB (evolved base station or enhanced base station) where the UE is located through the GPRS tunneling protocol (hereinafter referred to as GTP) channel, and then the ENB sends the data to the ENB (evolved base station or enhanced base station) where the UE is located. The data is sent to the corresponding user equipment.

HeNB is a base station that can be used in homes, and can also be used in places such as universities and companies. HeNB is plug and play. The HeNB accesses the MME through the S1 interface, or accesses the SGSN through the Iu (interface between the radio network controller (hereinafter referred to as RNC) and the SGSN) or eIu (enhanced Iu) interface. The difference from the common macro base station is that generally not all user equipments can access the HeNB. For example, only user equipment in the user's family can access the home HeNB, or the family agrees to other user equipment that can be accessed. In a company, only the employees of the company and the partners allowed by the company can access it. A group of HeNBs with the same access user group (such as HeNBs used in the same company) is called a Closed Subscriber Group (hereinafter referred to as CSG, Closed Subscriber Group).

The owner of the HeNB can decide the user groups that the HeNB can access. The user equipment of the HeNB needs to save the TA list (White TA list) of the HeNB that it can access, or it can be the white CSG list (white CSG list). The UE obtains the white TA list or white CSG list that the device can access through the attach (Attach) or TA update process. The HeNB broadcasts an indicator to indicate the HeNB cell or the CSG cell. The HeNB will broadcast the TA identity or CSG identity of the HeNB cell. In this way, when the UE is in idle mode and needs to perform cell reselection, the broadcast indicator knows whether the cell to be accessed is a HeNB cell or a CSG cell, and the UE can compare whether the TA of the target cell is in the white TA list saved by the UE middle. If it is in the white TA list saved by the UE, the UE can access the target cell. If it is not in the white TA list saved by the UE, the UE will not reselect to the target cell. Or the UE compares whether the CSG identifier of the target cell is in the whiteCSG list of the UE to determine whether the UE can access the target cell.

After the HeNB is put into use, the owner of the HeNB can decide the increase or decrease of user groups that the HNB can access. For example, when a friend comes to the house, the owner of the HeNB decides to add the friend's UE to the accessible user group, and then the friend's UE can enjoy the service quality of the HeNB. If the UE is not informed of the TA identity or CSG identity where the HeNB is located, the UE cannot access the HeNB cell. If you only rely on the UE to initiate a tracking area update when the tracking area changes to obtain the newly added tracking area ID or CSG ID, then when the user of the UE has been at a friend's house, he has not changed the tracking area he is in. Therefore, the TA identity or CSG identity of the friend's HeNB cannot be obtained. If the periodic tracking area update of the UE is relied on, there will be a long delay for the user of the UE to obtain the TA identity of the HeNB of the friend's home, because the time for periodically updating the TA will be very long, such as 5 minutes or 10 minutes. minutes or longer.

Therefore, it is necessary to update the White TA list or white CSG list saved by the UE in real time, but currently there is no mechanism to update the white TA list or white CSG list of the UE in real time.

Contents of the invention

The present invention proposes a method for updating the tracking area list of home base stations (hereinafter referred to as HeNB) that UE can access in real time, so that the HeNB owner can increase or decrease the user groups that HeNB can access, and can update the white TA list of UE in real time Or white CSGlist. In the present invention, the HeNB may be, but not limited to: a HNB in UMTS, a HNB in LTE, and a HNB in other communication systems.

According to an aspect of the present invention, a method for updating user equipment UE subscription information is proposed, including steps:

When the subscription information of the user equipment stored in the home subsystem HSS of the entity responsible for storing the subscription information of the user equipment changes, the HSS sends a first message to the mobility management entity of the user equipment;

After receiving the first message, the mobility management entity updates the stored subscription information for the user equipment, and sends a second message to the user equipment;

After receiving the second message, the user equipment updates the stored subscription information.

Through the method for updating the tracking area list of the home base station (hereinafter referred to as HeNB) that the UE can access provided by the present invention, the user can update the access information of the HeNB in time, and the user equipment can implement and enjoy the service provided by the HeNB.

Utilizing the method for supporting user equipment UE to move between the macro cell and the home base station provided by the present invention, the user equipment can obtain the updated white TA list or white CSG list in time, so as to perform good cell reselection and handover.

Description of drawings

Figure 1 is a network structure diagram of SAE;

Fig. 2 has shown the process that HSS updates MME user equipment white TA list;

FIG. 3 shows Embodiment 1 in which the MME updates the white TA list of the UE;

FIG. 4 shows Embodiment 2 in which the MME updates the white TA list of the UE;

FIG. 5 shows Embodiment 3 in which the MME updates the white TA list of the UE;

Fig. 6 shows an embodiment of the operation of the UE in the subscription information updating process.

Detailed ways

The owner of the femto base station can notify the operator of the change of user group information that the base station can access by calling or sending a text message to the operator. The operator modifies the subscription information of the HSS user. The operator can modify the subscription information of the user through the operation and maintenance (hereinafter referred to as O&M) server. This step is not the focus of the present invention, and detailed technical descriptions are omitted here.

In the present invention, the white TA list and the white CSG list may be equivalent. The white TA list or white CSG list may include a TA identity list and/or a global cell identity list. In the following descriptions and drawings, the white TA list is used as an example to describe, in fact, it is equivalent to the white CSG list.

According to the present invention, the process of the HSS updating the white TA list of the user equipment of the mobile management entity (such as the MME in the SAE) is shown in FIG. 2 .

First, the HSS sends "UE's HeNB information" 201 to the MME where the UE is located. The message may contain the latest white TA list that the UE can access or the increased white TA identification list and/or the reduced white TA identification list (ie, the changed white TA list (referred to as Delta white TA list in the figure)). The latest white TAlist that the UE can access is optional. The increased white TA identification list and the reduced white TA identification list of the UE are optional.

Then, the MME saves the received information, and sends a "UE's HeNB information confirmation" 202 message to the HSS.

Here, "UE's HeNB information" can be the existing "insert user data" message, or other messages, as long as the following information elements are included: the latest white TA list that the UE can access, or the added white TA A list of identities and/or a reduced list of whiteTA identities. The "UE's HeNB information confirmation" message may be the existing "Insert User Data Confirmation" message.

Embodiment 1 of updating the white TA list of the UE by a mobile management entity (such as MME in SAE) is shown in FIG. 3 .

The MME sends a "HeNB information update" 301 message to the UE. The message includes the latest white TA list that the UE can access, or includes an increased list of white TA identities and/or a reduced list of white TA identities.

Then, the UE saves the received information, and sends a "HeNB information update confirmation" 302 message to the MME.

The "HeNB information update" may be the existing "Globally Unique Temporary Identifier (GUTI) Reassignment Order" message, or other messages, as long as it includes the following information elements: the latest UE-accessible white TA list, or an increased white TA identification list and/or a reduced white TA identification list. The "HeNB information update confirmation" message may be an existing "GUTI reallocation complete" message.

The second embodiment in which the mobility management entity (such as the MME in the SAE) notifies the UE of updating the white TA list is shown in FIG. 4 . For example, when the UE is allowed to join or leave a certain user group, the user is in a power-off state. When the user reconnects (Attach), the MME notifies the UE of the updated white TA list.

The UE sends a "Connection Request" 401 message to the MME.

The MME sends a "Connection Accepted" 402 message to the UE. The "connection accept" message may contain the information element UE's latest white TA list that can be accessed, or include an increased list of white TA identities and/or a reduced list of white TA identities.

A third embodiment in which the mobile management entity (such as the MME in the SAE) notifies the UE of updating the white TA list is shown in Figure 5. For example, the TA update process is being executed, and the MME sends the updated HeNB information to the UE through a TA update acceptance message.

The UE sends a "TA Update" 501 message to the MME.

The MME sends a "TA Update Accept" 502 message to the UE. The "TA Update Accept" message contains the information element UE's latest white TA list that can be accessed, or contains an increased list of white TA identities and/or a reduced list of white TA identities.

An embodiment of UE action behavior is shown in FIG. 6 . The following is a detailed description of the graph.

In step 601, a UE receives a message. In step 602, if the UE receives a "HeNB information update" message from the network (including a "GUTI reallocation command" message for updating UE HeNB information, a "connection accept" message or a "TA update accept" message), then At 603, the UE saves the updated HeNB information in the message.

At 604, if the HeNB information includes the updated white TA list, then at 605, the UE starts searching for a new HeNB cell that it can access. This step can be performed periodically until a new HeNB cell that it can access is found. At 606, after the UE searches for a new HeNB cell that can be accessed, it performs cell reselection, or a measurement and handover process according to the existing procedure. At 607, the UE records the relationship between the new HeNB cell and the macro cell. For example, the corresponding relationship between the HeNB global cell identity or TA identity that the UE can access and the global cell identity and TA identity of the macro cell where the UE is located.

Once the UE saves the correspondence between the HeNB cell that it can access and the macro cell where it is located or the TA where the macro cell is located, the UE does not need to periodically search for the HeNB cell in the future. When the UE enters the macro cell where the HeNB cell is located or the TA where the macro cell is located, it starts to automatically search for the HeNB cell for measurement and handover.

If the UE returns to the idle mode after obtaining the new white TA list, the UE can reselect the TA of the new HeNB cell according to the measurement results.

While the invention has been described in terms of the illustrated examples, it should be noted that these examples are by way of illustration and not limitation of the invention. Those skilled in the art can easily modify, add and delete any steps in these embodiments without departing from the spirit and scope of the present invention.

Claims (7)

1. A method for updating user equipment UE subscription information, comprising steps: When the subscription information of the user equipment stored in the home subsystem HSS of the entity responsible for storing the subscription information of the user equipment changes, the HSS sends a first message to the mobility management entity of the user equipment; After receiving the first message, the mobility management entity updates the stored subscription information for the user equipment, and sends a second message to the user equipment; After receiving the second message, the user equipment updates the stored subscription information. 2. The method according to claim 1, wherein the subscription information includes the information of the HNB that is allowed to access. 3. The method according to claim 1 or 2, wherein the mobility management entity is MME or SGSN. 4. The method according to claim 3, wherein the first message and the second message include: the latest white TA list allowed to be accessed, or an increased white TA identification list and/or a reduced white TA identification list. 5. The method according to claim 3, wherein the first message and the second message include: the latest white CSG list allowed to be accessed, or an increased white CSG list and/or a reduced white CSG identification list. 6. The method according to claim 4 or 5, wherein the first message is a newly defined message "UE's HeNB information" or "Insert user data". 7. The method according to claim 4 or 5, wherein the second message is a newly defined message "UE's HeNB information", "GUTI reallocation command", "connection accept" or "TA update accept".

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