WO2013053092A1

WO2013053092A1 - Method, equipment and system for obtaining user equipment information

Info

Publication number: WO2013053092A1
Application number: PCT/CN2011/080594
Authority: WO
Inventors: 王岩; 袁立平; 周伟; 吴问付
Original assignee: 华为技术有限公司
Priority date: 2011-10-10
Filing date: 2011-10-10
Publication date: 2013-04-18
Also published as: CN103348710B; CN103348710A

Abstract

The present invention relates to a method, equipment and a system for obtaining user equipment information. The method comprises: querying a user equipment information database, and obtaining user equipment information corresponding to an equipment type allocation code of a user equipment; and sending the user equipment information to a video buffer and optimization network element. The method can effectively provide the user equipment information for the video buffer and optimization network element in a uniform and reliable manner, thereby solving the problem in the prior art that the user equipment cannot effectively provide the user equipment information for the video buffer and optimization network element as the user equipment has no user equipment information reporting capability or has a weak user equipment information reporting capability.

Description

Method, device and system for acquiring user equipment information

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for acquiring user equipment information. Background technique

Video services are a powerful driving force for the development of mobile networks. It is predicted that mobile video traffic will account for more than 66% of all mobile data traffic in the future. The evolution of mobile networks still faces the challenge of future video traffic for user experience and mobile network capacity.

In order to alleviate the traffic pressure brought by video services, a solution combining mobile network and Content Delivery Network (CDN) is proposed. In this solution, the content distribution network can cache video content in advance in a video buffer and optimized network element that is closer to the user equipment to reduce video transmission delay. Video caching and optimized network elements can provide adaptive transcoding services for video through video optimization technology, so that the video bit rate adapts to the transmission bandwidth of the mobile network and the video playback capability of the user equipment, thereby ensuring smooth video distribution and improving user experience.

The inventor has found that in order to implement the above functions, the video buffer and the optimized network element need to obtain user equipment information of the user equipment, for example: screen resolution and the like. However, the prior art cannot guarantee that the video buffer and the optimized network element can effectively obtain the user equipment information. Summary of the invention

The embodiments of the present invention provide a method, a device, and a system for acquiring user equipment information, which can effectively acquire user equipment information for a video buffer and an optimized network element.

In one aspect, the embodiment of the present invention provides a method for acquiring user equipment information, including: querying a user equipment information database, and obtaining user equipment information corresponding to a device type allocation code of the user equipment; Send the user equipment information to the video buffer and optimize the network element.

The embodiment of the present invention further provides another method for obtaining user equipment information, including:

The video buffer and the optimized network element acquire the device type allocation code of the user equipment;

The video buffering and the optimized network element query the user equipment information database to obtain user equipment information corresponding to the equipment type allocation code of the user equipment.

In another aspect, an embodiment of the present invention provides a packet data network gateway, including:

a query unit, configured to query a user equipment information database, and obtain user equipment information corresponding to a device type allocation code of the user equipment;

The sending unit is configured to send the user equipment information to the video buffer and optimize the network element.

The embodiment of the invention further provides a policy and charging rule function entity, including:

An obtaining unit, configured to acquire a device type allocation code of the user equipment;

The embodiment of the invention further provides a video buffer and an optimized network element, including:

The query unit is configured to query the user equipment information database, and obtain user equipment information corresponding to the equipment type allocation code of the user equipment.

In another aspect, an embodiment of the present invention provides a system for acquiring user equipment information, including a packet data network gateway, a video buffer, and an optimized network element.

The packet data network gateway is configured to receive a user equipment information request; query the user equipment information database to obtain user equipment information corresponding to the equipment type allocation code of the user equipment; and send the user equipment information to the video buffer and optimize the network element;

The video buffering and optimizing network element is configured to send the user equipment information request; and receive the user equipment information.

The embodiment of the invention further provides a system for acquiring user equipment information, including a billing rule and a charging rule. Functional entities and video caching and optimized network elements,

The policy and the charging rule function entity are configured to receive the user equipment information request, obtain the device type allocation code of the user equipment, query the user equipment information database, and obtain the user equipment information corresponding to the equipment type allocation code of the user equipment; User equipment information to the video buffer and optimized network element;

In the embodiment of the present invention, the user equipment information is obtained by querying the user equipment information database, and is provided to the video buffer and the optimized network element. The user equipment information is uniformly configured in the user equipment information database, and the user equipment information is obtained and provided by the network equipment. The user equipment information can be effectively provided for the video buffering and the optimized network element in a unified and reliable manner, which avoids the inability of the user equipment in the prior art to have the user equipment information reporting capability or the user equipment information reporting capability to be weak. The case of providing user equipment information for video caching and optimized network elements. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description For some embodiments of the present invention, other drawings may be obtained from those skilled in the art without departing from the drawings.

FIG. 1 is a network scenario according to an embodiment of the present invention;

FIG. 2 is another network scenario according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for acquiring user equipment information according to Embodiment 1 of the present invention; FIG. 4 is a flowchart of a method for acquiring user equipment information according to Embodiment 2 of the present invention; Another flowchart of a method for obtaining user equipment information provided in Example 2;

FIG. 6 is a flowchart of another method for acquiring user equipment information according to Embodiment 2 of the present invention; Figure

FIG. 7 is a network element signaling interaction diagram of a method for acquiring user equipment information according to Embodiment 3 of the present invention;

FIG. 8 is a network element signaling interaction diagram of a method for acquiring user equipment information according to Embodiment 4 of the present invention;

FIG. 9 is a network element signaling interaction diagram of a method for acquiring user equipment information according to Embodiment 5 of the present invention;

FIG. 10 is a schematic structural diagram of a packet data network gateway according to Embodiment 6 of the present invention; FIG. 11 is a schematic structural diagram of another packet data network gateway according to Embodiment 6 of the present invention; A schematic structural diagram of an acquisition unit provided;

FIG. 13 is a schematic structural diagram of a system for acquiring user equipment information according to Embodiment 7 of the present invention;

FIG. 14 is a schematic structural diagram of a system for acquiring user equipment information according to Embodiment 8 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without the creative work are all within the scope of the present invention.

The technical solution disclosed in the embodiment of the present invention can be applied to multiple combinations of scenarios of an Evolved Packet System (EPS) and a content distribution network. For example, it may be used in a scenario where the content distribution network is independent of the evolved packet system network, or the content distribution network is integrated as a logical content distribution function entity in the scenario of the packet data network gateway. In each of the above scenarios, the user equipment accesses the evolved packet system for performing video services, where the user equipment is a mobile device that can use the evolved packet system for broadband data communication, for example: a mobile smart phone, Tablet, netbook, data card, etc.

In order to explain the technical solution of the present invention more conveniently, the following describes a scenario in which the content distribution network is independent of the evolved packet system.

The scenario shown in Figure 1 includes: Evolved Packet System EPS, Content Delivery Network CDN, Packet Data Network PDN, and Internet Intemet. The EPS includes: Evolved Universal Terrestrial Radio Access Networks (E-UTRAN) E-UTRAN 105, Serving Gateway (SGW) SGW 106, Packet Data Network Gateway (PGW) The PGW 101, the Mobility Management Entity (MME) MME 104, and the Policy and Charging Rule Function (PCRF) PCRF 102. The CDN includes: Video Cache and Optimization Element (VCOE) VCOE103, video cache and optimized network element refers to a network element with video buffering and optimization functions, such as a video optimization gateway, a media processing gateway or a CDN. Nodes, etc.

The user plane is connected between the E-UTRAN 105 and the SGW 106, and between the SGW 106 and the PGW 101, and is used for establishing a data bearer of a User Equipment (UE) to a Packet Data Network (PDN). . The MME 104 and the E-UTRAN 105, and the MME 104 and the SGW 106 are signal plane connections for controlling the establishment of user plane bearers and performing mobility management. The PCRF 102 and the PGW 101 are signal plane connections for implementing policy control and flow accounting control functions. The PGW 101 implements a data connection with the Internet through the PDN. The CDN implements data communication with the PGW 101 through the PDN. There is a signaling interaction interface between the VCOE 103 and the PCRF 102 in the CDN, the VOCE 103 is used to report video service information to the PCFR 102, and the PCRF 102 returns a video policy to the VCOE 103. User device information. When the video service needs to be performed, the user equipment UE 107 accesses the EPS network, and the EPS network establishes a default bearer of the UE 107 to the PDN, and the UE 107 initiates a video service request to the CDN through the default bearer.

The embodiments of the present invention are also applicable to a GSM/EDGE radio access network (GERAN) or a UMTS terrestrial radio access network for a radio access network. (General Terrestrial Radio Access Network, UTRAN). Figure 2 shows the establishment of the user plane bearer and the mobility management network element is a GPRS Serving Node (SGSN) SGSN 104', corresponding to the MME 104 in the scenario shown in Figure 1; The access network GERAN/UTRAN 105' corresponds to the E-UTRAN 105 in the scenario shown in Figure 1, and the other network elements are identical to the scenario shown in Figure 1.

The GERAN/UTRAN 105' is a user plane connection with the SGW 106 for establishing a data bearer of the user equipment to the packet data network; between the SGSN 104' and the GERAN/UTRAN 105', and between the SGSN 104' and the SGW 106 It is a signaling plane connection, which is used to control the establishment of user plane bearers and perform mobility management. Embodiment 1

Embodiment 1 of the present invention provides a method for acquiring user equipment information, which can be used in the scenario shown in FIG. 1 and FIG. 2. As shown in Figure 3, the method includes:

201: Query a user equipment information database, and obtain user equipment information corresponding to a device type allocation code of the user equipment;

202: Send the user equipment information to the video buffer and optimize the network element. Is the International Mobile Station Equipment Identity,

The first 8 bits of the IM曰) can uniquely confirm the manufacturer and device model of the user equipment. As technology advances, the code length of the TAC and its location in the IM曰 may change.

The user equipment information database of this embodiment and the following embodiments refers to a database containing user equipment information. Because the user equipment information of the same type of user equipment of the same manufacturer is the same, and the device type allocation code of the same type of user equipment of the same manufacturer is the same, the device type allocation code can be used as the primary key, or the manufacturer and model information can be used as the primary key. Or other information that can be used to identify the same type of user equipment of the same manufacturer as the primary key, organize the user equipment information, and store it in the user equipment information database, so that the code can be assigned by the device type of the user equipment. The user equipment information is obtained directly or indirectly from the user equipment information database. Specifically, the user equipment information database may have a correspondence between the device type allocation code and the user equipment information, and the corresponding user equipment information may be obtained by directly matching the device type allocation code; the user equipment information database may also have the user equipment. The corresponding relationship between the manufacturer and the model information and the user equipment information is obtained by matching the device type allocation code with a specific rule to obtain the corresponding user equipment manufacturer and model information, and indirectly obtaining the corresponding user equipment information; the user equipment information database may also be stored. There is a correspondence between the information of the user equipment of the same model and the user equipment information, and the information of the user equipment of the same model of the same manufacturer is obtained by matching the certain rules. Corresponding user equipment information. This embodiment does not limit the specific content included in the user equipment information database. The user equipment information in the user equipment information database may be collected and organized by the operator according to the technical materials disclosed by the user equipment manufacturer, and regularly updated and maintained. This embodiment does not limit the type and format of the user equipment information database. The user equipment information database may be a delimited text, a table, or a SQL user equipment information database. The user equipment information database of the embodiment may be configured by the operator in advance on the user equipment information database server connected to the data gateway, or may be configured on the packet data network gateway, or may be deployed in the distributed user equipment information database. This embodiment does not limit this on different network devices.

The user equipment information of this embodiment and the following embodiments may include screen resolution information, supported audio and video codec formats, and supported video file formats. The screen resolution information is the number of pixels displayed on the screen, represented by horizontal and vertical pixels, such as 800 x 480, 480 x 320, etc. The supported video codec format refers to supporting a certain video through a specific compression technique. The way a formatted file is converted into another video format file. At present, the most important codec standards in video streaming are ITU's H.264, MJ PEG of the Motion Still Image Experts Group and the MPEG series of the International Organization for Standardization Motion Picture Experts Group; supported video file formats are supported. The video encapsulation format or video container is used to put the encoded video track and audio track into a file according to a certain format to meet the requirements of video storage. The commonly used video file format has AVI, MPEG, MP4, FLV, WMV, ASF, 3GP, MOV, etc. By obtaining the screen resolution information of the user equipment, the supported audio and video codec format, and the supported video file format, the video buffer and the optimized network element can optimize the video requested by the user, including converting the video codec and file format. For the format supported by the terminal player, or convert the video resolution to the resolution of the terminal screen to obtain the best display effect, or perform video bit rate conversion according to the network bandwidth to ensure smooth transmission.

In the embodiment of the present invention, the user equipment information database storing the user equipment information is queried according to the equipment type of the user equipment, and the user equipment information of the user equipment is obtained. Since the user equipment information is uniformly configured in the user equipment information database, the user equipment information is obtained by querying the user equipment information database, and the user equipment information can be effectively provided for the video buffer and the optimized network element in a unified and reliable manner, thereby avoiding the present In the prior art, the user equipment does not have the user equipment information reporting capability or the user equipment information reporting capability is weak, and the user equipment information cannot be effectively provided for the video buffer and the optimized network element. Furthermore, the correspondence between the device type allocation code and the user equipment information is stored in the user equipment information database, and the user equipment information database is used to obtain the user equipment information by using the equipment type allocation code to effectively improve the query efficiency. Embodiment 2

The second embodiment of the present invention provides a method for acquiring user equipment information, which can be used in the scenario shown in FIG. 1 and FIG. 2. As shown in Figure 4, the method includes:

301: The packet data network gateway queries the user equipment information database, and obtains user equipment information corresponding to the equipment type allocation code of the user equipment.

302: The packet data network gateway sends the user equipment information to the video buffer and the optimized network element. The device type allocation code, the user equipment information database, and the user equipment information in the method are the same as those in the first embodiment, and are not described herein.

When the user equipment is attached to the EPS network, the EPS network selects a packet data network gateway as a data anchor for the user equipment, and establishes a data bearer between the user equipment and the PDN. Packet data network gateway A user context corresponding to the PDN connection is established for each attached user equipment for mobility management, session management, and policy and charging management of the PDN connection. The local user context of the packet data network gateway may include the international mobile device identity code of the user equipment, that is, the device type allocation code of the user equipment in the local user context of the packet data network gateway, or may not include the international The mobile device identity code, that is, the device type allocation code of the user equipment is not included in the local user context of the packet data network gateway. If the local user context of the packet data network gateway includes the device type allocation code of the user equipment, the packet data network gateway may directly obtain the user equipment information corresponding to the device type allocation code according to the device type allocation code, or may re Obtaining a device type allocation code of the user equipment; if the local user context of the packet data network gateway does not include the device type allocation code of the user equipment, the packet data network gateway may obtain the equipment type allocation code of the user equipment before 301.

The second embodiment of the present invention further provides another method for acquiring user equipment information, which can be used in the scenario shown in FIG. 1 and FIG. 2. As shown in Figure 5, the method includes:

401: The policy and charging rule function entity acquires a device type allocation code of the user equipment.

402: The policy and charging rule function entity queries a user equipment information database, and obtains user equipment information corresponding to the device type allocation code of the user equipment;

403: The policy and charging rule function entity sends the user equipment information to the video buffer and the optimized network element.

The device type allocation code, the user equipment information database, and the user equipment information in the method are as described in the first embodiment, and are not described herein.

The policy and charging rule function entity in the method does not include the international mobile device identity code of the user equipment, so the policy and charging rule function entity does not include the device type allocation code of the user equipment, so the policy and charging rule function The entity needs to obtain the device type allocation code of the user equipment.

In this embodiment, before the packet data gateway or the policy and charging function entity queries the user equipment information database, the packet data gateway or the policy and charging function entity may further receive the video buffer and optimize the user equipment information sent by the network element. Request list; wherein, the user equipment information request The list contains the user equipment information required for the video cache and optimized network elements. After receiving the user equipment information request list sent by the video buffer and the optimized network element, the packet data network gateway or the policy and charging function entity queries the user equipment information database, and obtains the user equipment information request list according to the user equipment information request list. The user equipment information corresponding to the device type allocation code and the video buffer and optimized network element. Obtaining the video buffer and the user equipment information request list sent by the optimized network element, and obtaining the user equipment information required for the video buffering and optimizing the network element, and avoiding obtaining all the user equipment information corresponding to the device type allocation code of the user equipment, Can save signaling transmission overhead.

The second embodiment of the present invention further provides another method for acquiring user equipment information, which can be used in the scenario shown in FIG. 1 and FIG. 2. As shown in Figure 6, the method includes:

501: The video buffer and the optimized network element acquire a device type allocation code of the user equipment.

502: The video buffering and the optimized network element query the user equipment information database, and obtain user equipment information corresponding to the equipment type allocation code of the user equipment.

The device type allocation code, the user equipment information database, and the user equipment information of the method are as described in the embodiment, and are not described herein.

The video buffer and the optimized network element in the method do not include the international mobile device identity code of the user equipment. Therefore, the video buffer and the optimized network element do not include the device type allocation code of the user equipment, so the video buffer and the optimized network element need to be acquired. The device type assignment code of the user device.

The video buffering and optimizing network element in the method may also query the user equipment information database according to the user equipment information item required by the user equipment, and obtain the equipment type allocation code corresponding to the user equipment, and the video buffer and the optimized network element are required. The user equipment information is used to avoid obtaining all user equipment information corresponding to the equipment type allocation code of the user equipment, which can save signaling transmission overhead.

In this embodiment, the packet data gateway, the policy and charging function entity, and the video buffering and optimizing network element may have multiple methods for acquiring the device type allocation code of the user equipment, and one method for obtaining the device type allocation code of the user equipment includes Sending a request indication cell of the device type allocation code to the mobility management network element, and after receiving the request indication cell of the device type allocation code, the mobility management network element initiates an international mobile device identity code identification request process to the user equipment Receiving the mobility management network element The device type allocation code of the user equipment that is sent in the international mobile device identity code identification request process. It should be understood by those skilled in the art that there are other methods for obtaining a device type allocation code of a user equipment. For example, during the user equipment attachment process, the mobility management network element obtains an international mobile device identity code from the user equipment and the international The device type allocation code in the mobile device identity code is sent to the packet data gateway, the policy and charging function entity, or the video buffer and the optimized network element. The embodiment does not limit how to obtain the device type allocation code of the user equipment.

In the embodiment of the present invention, the user equipment information database storing the user equipment information is queried according to the equipment type of the user equipment, and the user equipment information of the user equipment is obtained. Since the user equipment information is uniformly configured in the user equipment information database, the user equipment information is obtained by querying the user equipment information database, and the user equipment information can be effectively provided for the video buffer and the optimized network element in a unified and reliable manner, thereby avoiding the present In the prior art, the user equipment does not have the user equipment information reporting capability or the user equipment information reporting capability is weak, and the user equipment information cannot be effectively provided for the video buffer and the optimized network element. Furthermore, the correspondence between the device type allocation code and the user equipment information is stored in the user equipment information database, and the user equipment information database is used to obtain the user equipment information by using the equipment type allocation code to effectively improve the query efficiency. Embodiment 3

FIG. 7 is a network element signaling interaction diagram of a method for acquiring user equipment information according to Embodiment 3 of the present invention. In the second embodiment, a DB 108 is added to the scenario shown in FIG. 1, and the DB 108 is connected to the PGW 101. The DB 108 is a user equipment information database, and includes user equipment information, which is specifically described in the first embodiment, and details are not described herein. The DB 108 can be configured independently in the database server or on the same physical device as the PGW 101. In this embodiment, the PGW 101 queries the DB 108, obtains the user equipment information corresponding to the device type allocation code of the UE 107, and sends the obtained user equipment information to the VCOE 103, as follows:

601: The UE 107 sends a video request to the VCOE 103.

The UE 107 sends a video request to the VCOE 103 requesting a video service. For example sending HTTP GET message, requesting to obtain a video service data stream.

602: The VCOE 103 sends a video session setup request message to the PCRF 102.

After receiving the video request sent by the UE 107, the VCOE 103 sends a video session establishment request to

PCRF 102. The video session establishment request includes video service information, such as quintuple information of the video service stream and bandwidth information required for the video service.

Optionally, the video session establishment request may further include a user equipment information request list, where the user equipment information request list includes user equipment information required by the VCOE 103.

603: The PCRF 102 sends an IP-CAN session modification message to the PGW 101.

After receiving the video session establishment request of the VCOE 103, the PCRF 102 formulates corresponding policy and charging control according to the video service information included in the video session establishment request (Policy and

Charging Control, PCC) rules, which are used to establish or modify video services.

IP Connectivity Access Network (IP-CAN) session. This IP-CAN session corresponds to the PDN connection in the EPS network.

If the user equipment information request list is included in the video session establishment request, the user equipment information request list is included in the IP-CAN session modification message and sent to the PGW 101. code.

After receiving the IP-CAN session modification message sent by the PCRF 102, the PGW 101 checks whether the international mobile device identity code of the UE 107 exists in the local user context, that is, the PGW 101 confirms whether the device type of the UE 107 can be obtained from the local user context. The allocation code, if not, executes 305, and if so, executes 312.

605: The PGW 101 sends a first bearer setup request message or a first bearer update request message to the SGW 106.

The first bearer setup request message or the first bearer update request message sent by the PGW 101 includes an international mobile device identity code request indication cell, and the international mobile device identity code request indication cell is used to instruct the MME 104 to initiate an international mobile device to the UE 107. Identity code identification request process, international migration The mobile device identity code identification request process is shown in 607~608.

606: The SGW 106 sends a second bearer setup request message or a second bearer update request message to the MME 104.

After receiving the first bearer setup request message or the first bearer update request message sent by the PGW 101, the SGW 106 sends a second bearer request message or a second bearer update request message to the MME 104, and the second bearer request message sent by the SGW 106 or The second bearer update request message includes an international bearer identity code request indication cell included in the first bearer setup request message or the first bearer update request message.

607: The MME 104 sends an International Mobile Equipment Identity Code Identity Request message to the UE 107.

After receiving the bearer setup request or the bearer update request that is forwarded by the SGW 106 and including the international mobile device identity code request indication cell, the MME 104 sends an international mobile device identity code identifier request message to the UE 107 to obtain the international mobile of the UE 107. Device ID.

608: The UE 107 sends an International Mobile Equipment Identity Code Identity Response message to the MME 104.

After receiving the international mobile device identity code identification request message sent by the MME 104, the UE 107 sends an international mobile device identity code identification response message to the MME 104, where the international mobile device identity code identification response message includes the international mobile device identity code of the UE 107.

609: The MME 104 initiates a bearer setup or bearer update procedure.

The MME 104 initiates a bearer setup or update procedure to establish a new bearer for the UE 107 or modify the existing bearer to meet the Video Quality of Service (QoS) requirements.

610: The MME 104 sends a second bearer setup response message or a second bearer update response message to the SGW 106.

The second bearer setup response message or the second bearer update response message sent by the MME 104 includes the obtained international mobile device identity code of the UE 107, and may only include the device type assignment code of the UE 107.

61 1 : The SGW 106 sends a first bearer setup response message or a first bearer update response message to the PGW 101. The first bearer setup response message or the first bearer update response message sent by the SGW 106 includes the international mobile device identity code of the UE 107 obtained by the MME 104, and may only include the device type assignment code of the UE 107.

612: The PGW 101 queries the DB 108 to obtain user equipment information of the UE 107.

After obtaining the device type allocation code of the UE 107, the PGW 101 queries the DB 108 to obtain the UE.

User equipment information corresponding to the device type allocation code of 107. Among them, DB 108 is a user equipment information database.

If the PGW 101 receives the user equipment information request list in 303, when the DB 108 is queried, only the user equipment information items listed in the user equipment information request list, that is, the user equipment information required by the VCOE 103, can be obtained. The effect of saving signaling overhead is saved.

The user equipment information is as described in the first embodiment, and details are not described herein.

613: The PGW 101 sends an IP-CAN Session Modification Response message to the PCRF 102.

The PGW 101 includes the user equipment information of the UE 107 obtained in 312 in the IP-CAN Session Modification Response message sent to the PCRF 102.

614: The PCRF 102 sends a video session setup request response message to the VCOE 103.

The PCRF 102 contains the obtained user equipment information of the UE 107 in the video session establishment request response message and transmits it to the VCOE 103.

615: VCOE 103 performs video optimization processing.

The VCOE 103 performs video optimization processing based on the user equipment information received from the UE 107.

In this embodiment, the PGW 101 queries the DB 108 to obtain the user equipment information of the UE 107, and sends the information to the VCOE 103. The user equipment information is uniformly configured in the DB 108, and the user equipment information of the acquired UE 107 is uniformly transmitted by the PGW 101. Therefore, the user equipment information can be effectively provided for the VCOE 103 in a unified and reliable manner, which avoids the inability of the user equipment to report the user equipment information or the user equipment information reporting capability is weak. Cache and optimize the case where the NE provides user device information. Furthermore, the correspondence between the device type allocation code and the user equipment information is stored in the DB 108, and the user equipment information is queried by using the device type allocation code. The information database to obtain user equipment information can effectively improve query efficiency. Embodiment 4

FIG. 8 is a network element signaling interaction diagram of a method for acquiring user equipment information according to Embodiment 4 of the present invention. The fourth embodiment adds DB 108 to the scenario shown in Fig. 1, and DB 108 is connected to PCRF 102. The DB 108 is a user equipment information database, and includes user equipment information, which is specifically described in the first embodiment, and details are not described herein. The DB 108 can be configured independently in the database server or on the same physical device as the PCRF 102. In this embodiment, the PCRF 102 obtains the device type allocation code of the UE 107, and the query DB 108 acquires the user equipment information corresponding to the device type allocation code of the UE 107, that is, acquires the user equipment information of the UE 107, and sends the obtained user. Device information to VCOE 103, as follows:

701 to 702 are the same as 601 to 602 in the second embodiment, and are not described herein.

703: The PCRF 102 sends an IP-CAN session modification message to the PGW 101.

After receiving the video session establishment request of the VCOE 103, the PCRF 102 formulates a corresponding PCC rule according to the video service information included in the video session establishment request, and the PCC rule is used to establish or modify an IP-CAN session required for the video service. The IP-CAN session corresponds to the PDN connection in the EPS network. The IP-CAN session modification message sent by the PCRF 102 includes an international mobile device identity code request indication cell, and the international mobile device identity code request indication cell is used to instruct the MME 104 to initiate an international mobile device identity code identification request process to the UE 107. The international mobile device identity code identification request process is as shown in 607-608 in the second embodiment.

704: The PGW 101 sends a first bearer setup request message or a first bearer update request message to the SGW 106.

After receiving the international mobile device identity code request indication cell, the PGW 101 transmits the first bearer setup request message or the first bearer update request message including the international mobile device identity code request indication cell.

705~710 are the same as 606~61 1 and will not be described here. 71 1 : The PGW 101 sends an IP-CAN Session Modification Response message to the PCRF 102.

The IP-CAN session modification response message sent by the PGW 101 includes the UE obtained by the MME 104.

The international mobile device identity code of 107 may also only contain the device type allocation code of UE 107.

712: The PCRF 102 queries the DB 108 to obtain user equipment information of the UE 107.

After obtaining the device type allocation code of the UE 107, the PCRF 102 queries the DB 108 to obtain the UE.

If the PCRF 101 receives the user equipment information request list, the PCRF 101 obtains the user equipment information item listed in the user equipment information request list, that is, the user equipment information required by the VCOE 103, and does not acquire the UE. 107 All user equipment information can achieve the effect of saving signaling transmission overhead.

713: The PCRF 102 sends a video session setup request response message to the VCOE 103.

714: The VCOE 103 performs video optimization processing.

In this embodiment, after the PCRF 102 obtains the device type allocation code of the UE 107, the query DB 108 obtains the user equipment information of the UE 107, and sends the information to the VCOE 103. The user equipment information is uniformly configured in the DB 108, and is unified by the PCRF 102. The user equipment information of the acquired UE 107 is sent, so that the user equipment information can be effectively provided for the VCOE 103 in a unified and reliable manner, which avoids the user equipment information reporting capability or the user equipment information reporting capability in the prior art. The weaker and ineffective way to provide user equipment information for video caching and optimized network elements. Moreover, in the DB 108, the correspondence between the device type allocation code and the user equipment information is stored, and the user equipment information database is obtained by using the device type allocation code to obtain the user equipment information, which can effectively improve the query efficiency. Embodiment 5

FIG. 9 is a network element signaling interaction diagram of a method for acquiring user equipment information according to Embodiment 5 of the present invention. In the sixth embodiment, a DB 108 is added to the scenario shown in FIG. 1, and the DB 108 is connected to the VCOE 103. The DB 108 is a user equipment information database, and includes user equipment information, which is specifically described in the first embodiment, and details are not described herein. The DB 108 can be configured independently in the database server or on the same physical device as the VCOE 103. In this embodiment, the VCOE 103 acquires the device type allocation code of the UE 107, and queries the DB 108 to obtain the user equipment information corresponding to the device type allocation code of the UE 107, that is, the user equipment information of the UE 107 is obtained, as follows:

801: The UE 107 sends a video request to the VCOE 103.

The UE 107 sends a video request to the VCOE 103 requesting a video service. For example sending HTTP

GET message, requesting to obtain a video service data stream.

802: VCOE 103 sends a video session setup request message to PCRF 102.

The video session establishment request message sent by the VOCE 103 includes an international mobile device identity code request indication cell, and the international mobile device identity code request indication cell is used to indicate that the MME 104 is to the UE.

107 initiates an international mobile device identity code identification request process, and the international mobile device identity code identification request process is as shown in 607~608.

803: The PCRF 102 sends an IP-CAN session modification message to the PGW 101.

After receiving the video session establishment request of the VCOE 103, the PCRF 102 saves the video service information included in the video session establishment request, and formulates a corresponding PCC rule, which is used to establish or modify an IP-CAN session required for the video service. The IP-CAN session corresponds to a PDN connection in the EPS network. The IP-CAN session modification message sent by the PCRF 102 contains the received international mobile device identity code request indication cell. 804: The PGW 101 sends a first bearer setup request message or a first bearer update request message to the SGW 106.

805~810 is the same as 606~61 1 and will not be described here.

81 1 : The PGW 101 sends an IP-CAN Session Modification Response message to the PCRF 102.

812: The PCRF 102 sends a video session establishment request response message to the VCOE 103.

The PCRF 102 includes the obtained device type allocation code of the UE 107 in the video session establishment request response message, and transmits it to the VCOE 103.

813: The VCOE 103 queries the DB 108 to obtain user equipment information of the UE 107.

After obtaining the device type allocation code of the UE 107, the VCOE 103 queries the DB 108 to obtain the UE.

Optionally, after obtaining the device type allocation code of the UE 107, the VCOE 103 may also query the DB 108 to obtain the user equipment information corresponding to the device type allocation code of the UE 107 and obtain the user equipment information required by the UE 107. Effect.

814: The VCOE 103 performs video optimization processing.

The VCOE 103 performs video optimization processing based on the obtained user equipment information of the UE 107.

In this embodiment, after the VCOE 103 acquires the device type allocation code of the UE 107, the query DB 108 obtains the user equipment information of the UE 107. Since the user equipment information is uniformly configured in the DB 108, and is uniformly obtained by the VCOE 103 query DB 108, Ability to be a VCOE in a consistent and reliable manner

103 effectively providing user equipment information, avoiding the prior art that the user equipment does not have the user equipment information The situation that the information reporting capability or the user device information reporting capability is weak may not effectively provide the user equipment information for the video buffer and the optimized network element. Moreover, the correspondence between the device type allocation code and the user equipment information is stored in the DB 108, and the user equipment information database is obtained by using the device type allocation code to obtain the user equipment information, which can effectively improve the query efficiency. Embodiment 6

Embodiment 6 of the present invention provides a packet data network gateway. FIG. 10 is a schematic structural diagram of a packet data network gateway according to Embodiment 6 of the present invention, as shown in FIG. 10:

A packet data network gateway 900, comprising:

The query unit 901 is configured to query a user equipment information database, and obtain user equipment information corresponding to a device type allocation code of the user equipment;

The sending unit 902 is configured to send the user equipment information to the video buffer and optimize the network element.

Optionally, as shown in FIG. 11, the packet data network gateway 900 may further include a receiving unit 903 or an obtaining unit 904.

The receiving unit 903 is configured to receive the video buffer and optimize the user equipment information request sent by the network element. At this time, the query unit 901 is specifically configured to query the user equipment information database, and obtain user equipment information corresponding to the device type allocation code of the user equipment and requested by the video buffer and the optimized network element according to the user equipment information request.

The obtaining unit 904 is configured to acquire a device type allocation code of the user equipment.

Further, as shown in FIG. 12, the obtaining unit 904 may include: an international mobile device identity code requesting unit 9041 and a device type assigning code receiving unit 9042.

The international mobile device identity code requesting unit 9041 is configured to send an international mobile device identity code request indication cell to the mobility management network element, so that the mobility management network element initiates an international mobile device identity code identification request process to the user equipment.

The device type allocation code receiving unit 9042 is configured to receive a device type allocation code of the user equipment that is obtained by the mobility management network element and is obtained in the international mobile device identity code identification request process. The packet data network gateway 900 provided in this embodiment can efficiently provide video buffering and optimized network elements in a unified and reliable manner by querying the user equipment information database by using the device type allocation code and sending it to the video buffer and optimizing the network element. The user equipment information avoids the situation that the user equipment does not have the user equipment information reporting capability or the user equipment information reporting capability is weak, which cannot effectively provide the user equipment information for the video buffer and the optimized network element. Example 7

Embodiment 7 of the present invention provides a system for acquiring user equipment information. As shown in FIG. 13, the system includes a packet data network gateway 1001 and a video buffer and optimized network element 1002;

a packet data network gateway 1001, configured to receive a user equipment information request; query a user equipment information database, obtain user equipment information corresponding to the equipment type allocation code of the user equipment; and send the user equipment information to the video buffer and optimize the network element 1002 ;

The video buffering and optimizing network element 1002 is configured to send the user equipment information request, and receive the user equipment information.

Optionally, the packet data network gateway 1 001 is further configured to obtain a device type allocation code of the user equipment. The process of obtaining the device type allocation code of the user equipment is as follows: The packet data network gateway 1 001 sends an international mobile device identity code request indication cell to the mobility management network element; the mobility management network element receives the international mobile device identity code. After the request indication cell, the international mobile device identity code identification request process is initiated to the user equipment; after the mobility management network element obtains the device type allocation code of the user equipment in the international mobile device identity code identification request process, the device of the user equipment is sent The type is assigned to the packet data network gateway 1001.

The system for acquiring user equipment information provided by this embodiment uses the device type allocation code to query the user equipment information database and sends it to the video buffer and the optimized network element through the packet data network gateway 1001.

The user equipment information can be effectively provided for the video buffering and the optimized network element 1002 in a unified and reliable manner, so that the user equipment does not have the user equipment information reporting capability or the user equipment information reporting capability is weak in the prior art. The resulting ineffective for video caching and optimized network elements User device information. Example eight

Embodiment 8 of the present invention provides a system for acquiring user equipment information. As shown in FIG. 14, the policy and charging rule function entity 1 101 and the video buffer and optimized network element 1 102 are included;

The policy and charging rule function entity 1 1 01 is configured to receive a user equipment information request; obtain a device type allocation code of the user equipment; query the user equipment information database, and obtain user equipment information corresponding to the equipment type allocation code of the user equipment; Sending the user equipment information to the video buffer and optimizing the network element 1 1 02;

The video buffering and optimizing network element 1 1 02 is configured to send the user equipment information request; and receive the user equipment information.

Further, the process of acquiring the device type allocation code of the user equipment by one of the policy and charging rule function entities 1 101 is as follows: The policy and charging rule function entity 1 1 01 sends the international mobile device identity code request indication cell to the mobility Management network element; the mobility management network element sends an international mobile device identity code identification request process to the user equipment after receiving the international mobile device identity code request indication cell; the mobility management network element obtains in the international mobile device identity code identification request process After the device type allocation code of the user equipment, the device type allocation code of the user equipment is sent to the policy and charging rule function entity 1 101.

The system for obtaining user equipment information provided by the embodiment, by using the device type allocation code to query the user equipment information database and transmitting the data to the video buffer and the optimized network element 1 1 02 through the policy and charging rule function entity 1 1 01, can be unified and In a reliable manner, the user equipment information is effectively provided for the video buffering and the optimized network element 1 1 02, which avoids the inability of the user equipment in the prior art to have the user equipment information reporting capability or the user equipment information reporting capability is weak. Provides user device information for video caching and optimized network elements.

It can be clearly understood by those skilled in the art that for the convenience and cleaning of the description, the specific working processes of the system, device and unit described above can be referred to the corresponding embodiments in the foregoing method embodiments. The process is not repeated here.

It will be understood by those of ordinary skill in the art that the drawings are only a schematic representation of one embodiment, and the elements or processes in the drawings are not necessarily required to practice the invention.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise. The components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional units are stored in a storage medium and include a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (Read-Only Memory), a random access memory (RAM), a disk or an optical disk, and the like. The medium of the program code.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than The present invention has been described in detail with reference to the foregoing embodiments, and those skilled in the art should understand that the technical solutions described in the foregoing embodiments may be modified or equivalently substituted for some of the technical features. The modifications and substitutions of the present invention do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Claim

A method for obtaining user equipment information, comprising:

Querying the user equipment information database to obtain user equipment information corresponding to the equipment type allocation code of the user equipment;

Sending the user equipment information to the video buffer and optimizing the network element.

2. The method of claim 1 wherein:

The method further includes: receiving the video buffer and requesting user equipment information sent by the optimized network element;

The querying the user equipment information database, and obtaining the user equipment information corresponding to the device type allocation code of the user equipment, includes: querying the user equipment information database, and obtaining, according to the user equipment information request, a device type with the user equipment And corresponding to the allocation code, and the video buffer and the user equipment information requested by the optimized network element.

The method according to claim 1 or 2, wherein the method further comprises: acquiring a device type allocation code of the user equipment.

The method of claim 3, wherein the acquiring the device type allocation code of the user equipment comprises:

Transmitting, by the packet data network gateway, an international mobile device identity code request indication cell to the mobility management network element, to enable the mobility management network element to initiate an international mobile device identity code identification request process to the user equipment; The gateway receives the device type allocation code of the user equipment that is obtained by the mobility management network element and is obtained in the international mobile device identity code identification request process; or

The charging rule function entity sends an international mobile device identity code request indication cell to the mobility management network element, so that the mobility management network element initiates an international mobile device identity code identification request process to the user equipment; The rule function entity receives the device type allocation code of the user equipment that is obtained by the mobility management network element and is obtained in the international mobile device identity code identification request process.

The method according to any one of claims 1-4, wherein the user equipment information database includes a correspondence between a device type allocation code of the user equipment and the user equipment information.

The method according to any one of claims 1-5, wherein the user equipment information comprises: screen resolution information, a supported audio and video codec format, and a supported video file format.

7. A method for obtaining user equipment information, comprising:

The video buffer and the optimized network element query the user equipment information database to obtain user equipment information corresponding to the equipment type allocation code of the user equipment.

The method of claim 7, wherein the video buffering and the optimizing network element querying the user equipment information database, and obtaining the user equipment information corresponding to the device type allocation code of the user equipment, includes:

The video buffer and the optimized network element query the user equipment information database, and obtain the user equipment information corresponding to the device type allocation code of the user equipment, and the video buffer and the optimized network element are required.

The method according to claim 7 or 8, wherein the video buffer and the optimized network element acquire the device type allocation code of the user equipment, including:

The video buffering and optimizing network element sends an international mobile device identity code request indication cell to the mobility management network element, so that the mobility management network element initiates an international mobile device identity code identification request process to the user equipment;

The video buffer and the optimized network element receive the device type allocation code of the user equipment that is obtained by the mobility management network element and is obtained in the international mobile device identity code identification request process.

The method according to any one of claims 7-9, wherein the user equipment information database includes a correspondence between a device type allocation code of the user equipment and the user equipment information.

The method according to any one of claims 7 to 10, wherein the user equipment information comprises: screen resolution information, a supported audio and video codec format, and a supported video file format.

12. A packet data network gateway, comprising: a query unit, configured to query a user equipment information database, and obtain user equipment information corresponding to a device type allocation code of the user equipment;

And a sending unit, configured to send the user equipment information to the video buffer and optimize the network element.

13. The gateway of claim 12, wherein:

The gateway further includes: a receiving unit, configured to receive the video buffer and optimize a user equipment information request sent by the network element;

The query unit is specifically configured to query the user equipment information database, and obtain, according to the user equipment information request, a video cache and an optimized network element corresponding to the device type allocation code of the user equipment. User device information.

The gateway according to claim 12 or 13, wherein the gateway further comprises an obtaining unit, configured to acquire a device type allocation code of the user equipment.

The gateway according to claim 14, wherein the acquiring unit comprises: an international mobile device identity code requesting unit, configured to send an international mobile device identity code request indication cell to the mobility management network element, so that The mobility management network element initiates an international mobile device identity code identification request process to the user equipment;

And a device type allocation code receiving unit, configured to receive a device type allocation code of the user equipment that is obtained by the mobility management network element and is obtained in the international mobile device identity code identification request process.

16. A policy and charging rule function entity, comprising:

The policy and charging rule function entity according to claim 16, wherein the policy and charging rule function entity further comprises: a receiving unit, configured to receive the video buffer and optimize the user sent by the network element Device information request; The query unit is specifically configured to query the user equipment information database, and obtain, according to the user equipment information request, a video cache and an optimized network element corresponding to the device type allocation code of the user equipment. User device information.

The policy and charging rule function entity according to claim 16 or 17, wherein the obtaining unit comprises:

An international mobile device identity code requesting unit, configured to send an international mobile device identity code request indication cell to the mobility management network element, to enable the mobility management network element to initiate an international mobile device identity code identification request process to the user equipment ;

19. A video buffer and optimized network element, comprising:

20. The video buffer and optimized network element of claim 19, wherein:

The query unit is specifically configured to query a user equipment information database, and obtain a user equipment letter corresponding to the device type allocation code of the user equipment, and the video buffer and the optimized network element are required.

The video buffering and optimizing network element according to claim 19 or 20, wherein the acquiring unit comprises:

a device type allocation code receiving unit, configured to receive, by the mobility management network element, a device type assignment of the user equipment acquired in the international mobile device identity code identifier requesting process code.

22. A system for obtaining user equipment information, including a packet data network gateway, a video buffer, and an optimized network element, wherein

The packet data network gateway is configured to receive a user equipment information request, query a user equipment information database, obtain user equipment information corresponding to the equipment type allocation code of the user equipment, and send the user equipment information to the video buffer and Optimize network elements;

The video buffer and the optimized network element are configured to send the user equipment information request; and receive the user equipment information.

23. The system of claim 22, wherein

The packet data network gateway is further configured to acquire a device type allocation code of the user equipment.

The system of claim 23, wherein the packet data network gateway acquires a device type allocation code of the user equipment, including:

Transmitting, by the packet data network gateway, an international mobile device identity code request indication cell to a mobility management network element, to enable the mobility management network element to initiate an international mobile device identity code identification request process to the user equipment; The device type allocation code of the user equipment that is obtained by the mobility management network element and is obtained in the international mobile device identity code identification request process.

25. A system for obtaining user equipment information, comprising a policy and charging rule function entity, and a video buffer and an optimized network element, wherein:

The policy and charging rule function entity is configured to receive a user equipment information request; obtain a device type allocation code of the user equipment; query the user equipment information database, and obtain user equipment information corresponding to the equipment type allocation code of the user equipment; Sending the user equipment information to the video buffer and the network element;

The system of claim 25, wherein the policy and charging rule function entity acquires a device type allocation code of the user equipment, including: The policy and charging rule function entity sends an international mobile device identity code request indication cell to the mobility management network element, so that the mobility management network element initiates an international mobile device identity code identification request process to the user equipment; Receiving, by the mobility management network element, a device type allocation code of the user equipment acquired in the international mobile device identity code identification request process.