WO2010127482A1

WO2010127482A1 - A method, device and system for obtaining terminal capability information

Info

Publication number: WO2010127482A1
Application number: PCT/CN2009/071650
Authority: WO
Inventors: 王济勇; 赵旸; 余勇军
Original assignee: 华为技术有限公司
Priority date: 2009-05-05
Filing date: 2009-05-05
Publication date: 2010-11-11
Also published as: CN101971655A

Abstract

The present invention discloses a method, device and system for obtaining terminal capability information, and relates to the field of wireless communication technology. The method, device and system enable an access network to obtain necessary terminal capability information before a mobile terminal requires handover between different radio access technologies (RATs), ensuring successful handover of said terminal. The method includes the following steps: receiving, during a wireless capability update procedure, a terminal capability issue information transmitted from a core network, wherein said terminal capability issue information carries terminal capability information for supporting a Universal Terrestrial Radio Access Network (UTRAN) and/or an Evolved Universal Terrestrial Radio Access Network (E-UTRAN); analyzing said terminal capability issue information; and obtaining said terminal capability information. The invention applies to any situation in which terminal capability information needs to be obtained.

Description

Method, device and system for acquiring terminal capability information

The present invention relates to wireless communication technologies, and in particular, to a method, apparatus and system for acquiring terminal capability information.

BACKGROUND OF THE INVENTION With the development of wireless communication technologies, a variety of communication networks with different Radio Access Technologies (RATs) have emerged, such as the GSM EDGE Radio Access Network in 2G (GSM EDGE Radio Acces). s Network, GERAN), 3G Global Unearthed Radio Access Network (UTRAN) and Evolved Global Terrestrial Radio Access Network (E-UTRAN).

When multiple RATs cover one area at the same time, different RATs have different signal strengths at different locations due to RAT coverage and other factors, and different RATs have different priorities for different services. Therefore, based on the consideration of the priority and/or signal quality of different services, the mobile terminal will switch between different RATs when performing services.

The first condition when performing inter-RAT handover is that the mobile terminal must have terminal capability information capable of supporting the target RAT. For example, when performing handover of the RAT between the GERAN and the UTRAN, the mobile terminal must have capability information supporting the GERAN and the UTRAN. Secondly, the handover process is determined and initiated by the source access network, and the source access network needs to know whether the mobile terminal has the capability information to support the target access network. When the mobile terminal has capability information supporting the target access network, the source access network performs inter-RAT handover; when the mobile terminal does not have capability information supporting the target access network, the source access network does not perform inter-RAT handover.

In the prior art, in the Genera Packet Trunking (GPRS) mode, the source access network obtains the terminal capability information of the mobile terminal by: in the registration or routing area update process, The mobile terminal indicates the terminal capability information of the mobile terminal to the core network through an indication field in the registration request message or the routing area update request message; the core network instructs the mobile terminal according to the indication information delivered by the core network according to the requirements (such as the policy of the operator) The corresponding RAT capability information is uploaded. Move The mobile terminal reports the corresponding RAT capability information to the core network through the registration completion message or the routing area update completion message according to the indication information. The core network sends the terminal capability information reported by the mobile terminal to the source access network in the process of creating or modifying the packet flow content (Packet F low Context PFC).

In the circuit switching domain (C) mode, the source access network requests the mobile terminal to report the terminal capability information through the air interface message, so as to obtain the terminal capability information of the mobile terminal.

In the process of implementing the present invention, the inventor has found that at least the following problems exist in the prior art: In the GPRS mode, the core network only sends the acquired terminal capability information of the mobile terminal in the process of establishing or modifying the PFC. Give the access network. Moreover, since the mobile terminal is based on the indication information of the RAT according to the indication of the core network, it may appear that even if the mobile terminal has the capability information of the RAT, the mobile terminal cannot report the capability because it has not received the indication of the core network. The capability information of the RAT, which causes the access network to lack the capability information of the RAT. Therefore, when the mobile terminal needs to perform different inter-RAT handover, there may be a problem that the access network cannot perform handover with the target RAT because of lack of target RAT capability information of the mobile terminal.

In the CS mode, the access network cannot switch the mobile terminal to the E-UTRAN network because the access network does not request the mobile terminal to report the terminal capability information of the mobile terminal supporting the E-UTRAN.

Summary of the invention

Embodiments of the present invention provide a method, apparatus, and system for acquiring terminal capability information.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

A method for obtaining terminal capability information, the method comprising:

Receiving information about the terminal capability sent by the core network in the wireless capability update process, the terminal capability sending information includes terminal capability information supporting the global terrestrial radio access network UTRAN and/or supporting the evolved global terrestrial radio access network. Terminal capability information of E-UTRAN;

Parsing the terminal capability to send information, and acquiring the terminal capability information.

A method for obtaining terminal capability information, the method comprising:

Receiving a downlink data packet message sent by the core network, where the downlink data packet message carries terminal capability information, where the terminal capability information includes terminal capability information supporting the global terrestrial radio access network UTRAN and/or supporting the evolved global terrestrial wireless access Terminal capability information of the network E-UTRAN; Parsing the downlink data packet message to obtain the terminal capability information.

A method for obtaining terminal capability information, the method comprising:

When the terminal capability information is changed or the mobile terminal completes the location update, the receiving base station subsystem PFC message is sent by the core network, and the created base station subsystem PFC message carries the terminal capability information; parsing the created base station subsystem PFC message, acquiring The terminal capability information.

A method for obtaining terminal capability information, the method comprising:

Receiving information including terminal capability information sent by the mobile terminal;

The terminal capability information is obtained by parsing the information including the terminal capability information, and the terminal capability information includes terminal capability information supporting the E-UTRAN.

A network device, the device comprising:

a first receiving unit, configured to receive, by the terminal, the terminal capability sent by the core network to send the information during the wireless capability update process; or, to receive the downlink data packet message sent by the core network; or, when the terminal capability information changes or the mobile terminal completes the location When updating, the receiving base station subsystem PFC message sent by the core network is received;

The terminal capability sending information includes terminal capability information supporting UTRAN and/or terminal capability information supporting E-UTRAN; the downlink data packet message or creating a base station subsystem PFC message carrying terminal capability information;

The first obtaining unit is configured to parse the terminal capability sending information or the downlink data packet message received by the first receiving unit or create a base station subsystem PFC message, and obtain the terminal capability information.

A network server, including:

An information acquiring unit, configured to acquire terminal capability information of the mobile terminal;

a third sending unit, configured to send a terminal capability to send information to the access network during the wireless capability update process; or send a downlink data packet message to the access network; or, when the terminal capability information changes or the mobile terminal completes the location When updating, sending a base station subsystem PFC message to the access network;

The terminal capability sending information includes terminal capability information supporting UTRAN and/or terminal capability information supporting E-UTRAN; and the downlink data packet message or the base station subsystem PFC message carries terminal capability information. The embodiment of the invention further provides a communication system comprising the above network device and a network server. A communication system provided by another embodiment of the present invention includes the following network device and mobile terminal.

A network device, the device comprising:

a second receiving unit, configured to receive information about the terminal capability information that is sent by the mobile terminal, where the second acquiring unit is configured to parse the information that includes the terminal capability information that is received by the second receiving unit, and obtain the terminal capability information, where The terminal capability information includes terminal capability information supporting E-UTRAN.

A mobile terminal includes:

And a fourth sending unit, configured to send, to the access network, a message that includes terminal capability information, where the terminal capability information includes terminal capability information that supports E-UTRAN.

The technical solution provided by the embodiment of the present invention, when the mobile terminal needs to perform handover between different RATs, can use the received terminal capability of the received core network to send information or downlink data packet messages or create a base station subsystem PFC message, or The terminal capability information is obtained by the information about the terminal capability information that is sent by the mobile terminal, and the terminal capability information includes the terminal capability information that supports the E-UTRAN. Therefore, in the prior art, in the GPRS mode, the access network can only obtain the terminal capability information in the process of establishing or modifying the PFC in the core network, or the core network only sends the terminal capability information that the mobile terminal reports to the access network to the access network. The problem that the inter-RAT handover cannot be performed, or the access network in the CS mode cannot obtain the terminal capability information supporting the E-UTRAN, and the problem of switching between the E-UTRAN and the E-UTRAN cannot be performed. The technical solution provided by the embodiment of the present invention enables the access network to obtain the required terminal capability information before the mobile terminal needs to perform the inter-RAT handover, thereby ensuring successful handover of the mobile terminal between different RATs.

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 are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic flowchart of a method for acquiring terminal capability information according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of a method for acquiring terminal capability information according to another embodiment of the present invention; FIG. 3 is a schematic flowchart of a method for acquiring terminal capability information according to another embodiment of the present invention; FIG. 4 is a schematic flowchart of a method for acquiring terminal capability information according to another embodiment of the present invention; FIG. FIG. 6 is a schematic flowchart of a method for acquiring terminal capability information according to another embodiment of the present invention; FIG. 7 is a schematic diagram of a method for transmitting terminal capability information to a core network according to another embodiment of the present invention; FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a network server according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.

detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

The terminal capability information referred to in the embodiment of the present invention mainly includes terminal capability information (: 3⁄4 port MS Radio capabi 1 ty ) supporting GERAN, and supports UTRAN terminal capability information (: 3⁄4 port Inter RAT handover Info), and supports E- Terminal capability information of UTRAN (such as E-UTRAN Inter RAT handover Info). In the following description, the scenario in which the mobile terminal is switched from the GERAN to the UTRAN or the E-UTRAN network is described by using the three terminal capability information as an example to describe the technical solution provided by the embodiment of the present invention.

It should be noted that the terminal capability information involved in the embodiment of the present invention is not limited thereto, and includes all terminal capability information required before the mobile terminal performs different inter-RAT handover. A person skilled in the art can also apply the technical solution provided by the embodiment of the present invention to a scenario of switching between other networks.

The method for obtaining the terminal capability information of the access network provided by the embodiment of the present invention includes: receiving, in a wireless capability update process, a terminal capability sending information sent by a core network, where the terminal capability sending information carries terminal capability information, where The terminal capability information includes capability information supporting the UTRAN and/or capability information supporting the E-UTRAN; parsing the terminal capability to deliver information, and acquiring the terminal capability information. Its The information about the terminal capability is sent, such as a wireless capability update response message.

(RA-CAPABILITY-UPDATE-ACK), the specific processing method, as shown in Figure 1, includes the following steps:

S1: Serving GPRS Support Node (SGSN) to the core network through the Base Station Sub-system (BSS) when the access network needs the capability information of the UTRAN and/or E-UTRAN of the mobile terminal ) send wireless capability update message

(RA-CAPABILITY-UPDATE). The scenario is described, so Figure 1 mainly includes the network nodes BSS and SGSN in GERAN. It can be understood that when performing handover between other networks, the corresponding network device in the network can be employed. The embodiment of the present invention is described by taking the wireless capability update process as an example. Since the process can obtain the terminal capability information supporting the GERAN, the access network needs to acquire the UTRAN and/or E-UTRAN of the mobile terminal. Information situation.

Optionally, the first indicator identifier is carried in the RA-CAPABILITY-UPDATE to indicate terminal capability information required by the access network. As shown in Table 1, an indication field of the requested UTRAN Capability of the mobile terminal is added in the RA-CAPABILITY-UPDATE to indicate whether the core network needs to transmit the UTRAN capability information of the terminal; or An indication field of the requested MS E-UTRAN Capability is added in the RA-CAPABILITY-UPDATE to indicate whether the core network needs to send the terminal capability information supporting the E-UTRAN; or The indication fields Requested MS UTRAN Capability and Requested MS E-UTRAN Capability are added simultaneously in the Radio Capability Update message (RA-CAPABILITY-UPDATE). Table 1. Protocol packet contents of the wireless capability update message

Table 1 above shows a specific manner of carrying the first indication identifier in the Radio Capacity Update Message (RA-CAPABILITY-UPDATE) to indicate the terminal capability information required by the access network. However, the actual application is not limited to the carrying mode shown in Table 1, and the specific format and length of the indication field are not limited here, and may be set according to specific needs.

S2: After receiving the foregoing radio capability update message (RA-CAPABILITY-UPDATE), the core network sends a radio capability update response message (RA-CAPABILITY-UPDATE-ACK) to the access network, and carries the terminal in the radio capability update response message. Capability information.

After receiving the foregoing wireless capability update message, the core network may send all the saved terminal capability information to the access network; or, after receiving the wireless capability update message carrying the first indication identifier, according to the first indication And identifying, in the wireless capability update response message, the required terminal capability information that is indicated by the first indication identifier.

For example, in the wireless capability update response message, the terminal supports the capability information field of the UTRAN, such as Inter RAT handover Info, and/or the capability information field of the terminal supporting E-UTRAN, such as E-UTRAN Inter RAT Handover Info. The specific method is shown in Table 2. Table 2. Protocol packet contents of the wireless capability update response message

Table 2 above carries both Inter RAT handover Info and E-UTRAN Inter RAT

Taking the capability information of Handover Info as an example, a specific way of implementing the wireless capability update response message is given, but it is not limited to this method.

In the embodiment of the present invention, the core network stores the obtained terminal capability information of the mobile terminal. However, in the embodiment of the present invention, the specific manner for the core network to obtain the terminal capability information is not limited. Example Terminal capability information, the core network receives the terminal capability information and saves it. When the access network needs the corresponding terminal capability information, the wireless capability update message is sent to the core network, and the core network sends the terminal capability information to the core network through the wireless capability update response message.

Therefore, by using the technical solution of the embodiment of the present invention, the terminal capability information sent by the received core network is used to obtain the capability information of the terminal, which solves the problem that the access network in the GPRS mode can only be in the core in the prior art. Obtain terminal capability information during the establishment or modification of the PFC, or the core network only refers to it. The problem that the terminal capability information reported by the mobile terminal is sent to the access network and cannot be switched between different RATs is convenient for the access network to obtain the required terminal capability information, thereby ensuring successful handover of the mobile terminal between different RATs. .

A person skilled in the art may know that the terminal capability information may be obtained by adding a new message according to the foregoing steps S1 and S2 during the wireless capability update process; the method for acquiring the terminal capability information in the wireless capability update process described above, It can be applied to other processes or operations in which terminal capability information is acquired using messages identical or similar to those described above.

In a further embodiment of the present invention, the core network actively sends the terminal capability information, such as the downlink capability packet information (DL-UNITDATA) carrying the terminal capability information, and sends the terminal capability information to the access network, where the terminal capability The information includes terminal capability information supporting the global terrestrial radio access network UTRAN and/or terminal capability information supporting the evolved global terrestrial radio access network E-UTRAN.

For example, as shown in FIG. 2, in the GPRS mode, when the downlink network packet is sent to the access network, the core network may carry the terminal capability information in the data packet and send the data to the access network, for example, the core network is in the downlink data packet message. Adding a field indicating terminal capability information, such as adding a capability information field of the terminal supporting UTRAN, such as Inter RAT handover Info, or adding a capability information field of the terminal supporting E-UTRAN, such as E-UTRAN Inter RAT Handover Info, or simultaneously increasing power Port field Inter RAT handover Info and E-UTRAN Inter RAT Handover Info. Since the downlink data packet message already carries the terminal capability information supporting the GERAN, the access network can obtain the terminal capability information supporting the GERAN. Therefore, the access network needs to acquire the UTRAN and/or E-UTRAN of the mobile terminal. The situation of the ability information.

As shown in Table 3, a specific implementation manner of adding the fields Inter RAT handover Info and E-UTRAN Inter RAT Handover Info simultaneously in the downlink packet message is given. Table 3, downlink packet message content

In this embodiment, the specific manner of adding the field indicating the terminal capability information in the downlink data packet message is not limited to the carrying mode shown in Table 3, and the specific format and length of the added field are not limited herein. Need to be set.

In the embodiment of the present invention, each time the core network sends a data packet to the access network, the terminal capability information may be sent to the access network by using a downlink data packet message.

Optionally, when the terminal capability information is changed or the terminal completes the location update, the core network sends the terminal capability information to the access network by using the downlink data packet. The core network may learn that the terminal capability information changes or the terminal location update occurs through the registration or routing area update process of the mobile terminal, or through detection of the mobile terminal or other suitable manner. The technical solution provided by the embodiment of the present invention can obtain the terminal capability information by using the received downlink data packet message sent by the core network, thereby solving the problem that the access network can only be established or modified in the core network in the GPRS mode in the prior art. The terminal capability information is obtained in the PFC process, or the core network only issues the terminal capability information that the mobile terminal reports to the access network, and the problem that the inter-RAT handover cannot be performed. The technical solution provided by the embodiment of the present invention enables the access network to obtain the required terminal capability information before the mobile terminal needs to switch between different RATs, and ensures successful handover of the mobile terminal between different RATs.

In another embodiment of the present invention, before the access network acquires the terminal capability information according to the methods in the foregoing steps S1 and S2, the core network indicates the terminal capability information of the core network by using a downlink data packet message, for example, The downlink data packet message carries the second indication identifier to indicate the terminal capability information that is included in the core network, and the specific processing manner is as shown in FIG. 3 .

The indication packet field is carried in the downlink data packet message, such as the RAT Handover Info Indi cator, or the indicator of the capability information of the terminal supporting the E-UTRAN (E-UTRAN Inter RAT Handover Info) Indicator ), or: 3⁄4 port shown in Table 4, while carrying the indication identifier Inter RAT Handover Info Indica tor ^ E-UTRAN Inter RAT Handover Info Indicator to indicate the terminal capability information that the core network has.

The access network determines, according to the indication identifier, whether the mobile terminal is required to report the terminal capability information, if necessary, if the core network indicates that it has the capability information supporting the E-UTRAN, and the access network needs the capability information supporting the E-UTRAN. The access network sends a wireless capability update message to the core network, and obtains the terminal capability information by using the method in the first embodiment; if not, if the access network currently has the terminal capability information required for performing the inter-RAT handover, The wireless capability update message is no longer sent on the network, and the subsequent operations described in the implementation one are not performed.

In the embodiment of the present invention, each time the core network sends a data packet to the access network, the terminal capability information of the core network may be indicated to the access network by using an indication field in any downlink data packet.

Optionally, when the terminal capability information is changed or the terminal completes the location update, the core network sends a downlink data packet message to the access network, where the downlink data packet message carries a second indication identifier to indicate that the core network has Terminal capability information.

The technical solution provided by the embodiment of the present invention enables the access network to obtain the required terminal capability information before the mobile terminal needs to switch between different RATs, and ensures successful handover of the mobile terminal between different RATs. The technical solution of the third embodiment of the present invention can reduce the consumption of system resources.

In another embodiment of the present invention, as shown in FIG. 4, the core network uses the existing PFC message (CREATE-BSS-PFC) to deliver the terminal capability information of the mobile terminal. In this embodiment, the trigger condition for transmitting the created PFC message is reset. The triggering condition for sending the message is not limited to the process of establishing or modifying the PFC in the core network. When the terminal capability information changes or the terminal completes the location update, the core network may also establish terminal capability information by creating a PFC message, such as the terminal supporting the UTRAN. Capabilities, such as Inter RAT handover Info, and/or capability information of the terminal supporting E-UTRAN, such as E-UTRAN Inter RAT Handover Info, are sent to the access network, and the access network obtains corresponding information by parsing the CREATE-BSS-PFC message. Terminal capability information.

The technical solution provided by the embodiment of the present invention uses the received PFC message sent by the core network to obtain the terminal capability information of the base station subsystem. In the prior art, the access network can only be established or modified in the core network in the GPRS mode. The terminal capability information is obtained in the PFC process, or the core network only sends the terminal capability information reported by the mobile terminal to the access network, and the problem that the inter-RAT handover cannot be performed is ensured, so that the mobile terminal can successfully switch between different RATs.

In another embodiment of the present invention, in the Dedicated Mode of the CS domain, when the access network needs the terminal capability information, the access network sends information about the capability of the requesting terminal, such as carrying the capability query (Clas smark). Enquiry information requesting the terminal capability in the message, requesting the mobile terminal to send the information including the terminal capability information, the mobile terminal transmitting the information to the access network through the air interface, and reporting the corresponding terminal capability information, where the terminal capability information includes the support E - Terminal capability information of UTRAN. As shown in Figure 5, the following steps are included:

T1: When the access network needs to support the terminal capability information of the E-UTRAN, the CSS sends a Clas smark Enquiry message to the mobile terminal through the BSS, and requests the terminal to support the terminal capability information of the E-UTRAN. Specifically, the C las smark Enquiry Mask of the Clas smark Enquiry message may be used to add a port indication field to indicate that the mobile terminal reports the terminal capability information supporting the E-UTRAN. As shown in Table 5, it is the content contained in the Clas smark Enquiry message.

Table 5, capability query message content

Specifically, the specific structure of the Clas smark Enquiry Mask byte is shown in Table 6. Table 6

Optionally, the indication field of the terminal capability information supporting the E-UTRAN is added to the second bit (b i t ) of the Clas smark Enquiry Mask va lue par t byte, as shown in Table 7.

Table 7

Bit 8:

0 Request ability change message (CLASSMARK CHANGE message is requested)

1 CLASSMARK CHANGE message is not requested

Bits 7-5:

000 request UTRAN CLASSMARK CHANGE message is requested

1 1 1 UTRAN CLASSMARK CHANGE message is not requested.

All other values shall not be sent. If received, they shall be interpreted as ΌΟΟ'.

Bit 4:

0 Request CDMA2000 Qualification Change Message (CDMA2000 CLASSMARK CHANGE message requested.)

1 Unsolicited CDMA2000 capability change message (CDMA2000 CLASSMARK CHANGE message not requested.)

Bit 3:

0 Request GERAN IU MODE CLASSMARK CHANGE message

Requested.)

1 GERAN IU MODE CLASSMARK CHANGE message not requested.

Bits 2:

0 Request E-UTRAN CLASSMARK CHANGE message is requested

1 E-UTRAN CLASSMARK CHANGE message is not requested.

Bits 1 : Reserved.

T2: The mobile terminal passes the newly added message according to the above indication field, such as E-UTRAN Clas smark The change, the terminal capability information and/or other capability information supporting the E-UTRAN is transmitted to the access network by using a dedicated control channel (DCCH) and/or a common control channel (CCCH).

The E-UTRAN C la s smark change message is a message newly set in the embodiment of the present invention, and does not limit the name of the message, and includes any message that the mobile terminal can use to send the corresponding terminal capability information to the access network. The specific content of the E-UTRAN C las smark change message provided in this embodiment is shown in Table 8.

The field E-UTRAN C las smark shown in Table 8 contains E-UTRAN capability information.

In the embodiment of the present invention, the corresponding terminal capability information, such as the terminal capability information supporting the E-UTRAN, may be carried by the E-UTRAN C las smark byte in Table 8 above. There is no restriction on which specific bit to use for the E-UTRAN C las smark byte to carry the corresponding terminal capability information.

The technical solution provided by the embodiment of the present invention, when the mobile terminal needs to switch between different RATs, can obtain the terminal capability information by using the information about the terminal capability information that is sent by the mobile terminal, where the terminal capability information includes the support E. The terminal capability information of the UTRAN solves the problem that the access network in the CS mode cannot acquire the terminal capability information supporting the E-UTRAN in the CS mode, and the handover with the E-UTRAN cannot be performed. The technical solution provided by the embodiment of the present invention enables the access network to obtain the required terminal capability information before the mobile terminal needs to perform the inter-RAT handover, and ensures the successful handover of the mobile terminal between different RATs.

In another embodiment of the present invention, in the GPRS mode, the access network may receive information including terminal capability information that is sent by the mobile terminal through the air interface, where the information carries terminal capability information, where the terminal capability information includes supporting UTRAN and/or Or support E-UTRAN terminal capability information; then the access network resolves the The information including the terminal capability information is obtained, and the terminal capability information is obtained.

As shown in FIG. 6, the following steps are specifically included:

R1: The access network sends an air interface message to the mobile terminal by using a common control channel or a dedicated control channel, where the air interface message indicates that the mobile terminal carries the corresponding terminal capability information in the sent message containing the terminal capability information. For example, an indication field is set in the air interface message to indicate corresponding terminal capability information.

The existing message or the newly set one message can be used as the air interface message, for example, the new capability acquisition message (Capability Acquire) is used as the air interface message, and the specific name of the newly added air interface message is not limited, including any available A message that enables the above corresponding functions.

R2: The mobile terminal sends information including terminal capability information to the access network through the air interface according to the indication of the access network.

For example, the mobile terminal sends a capability acquisition response message (Capacility Acquire Ack) to the access network through the air interface, where the capability acquisition response message carries terminal capability information, for example, the terminal supports UTRAN capability information, such as Inter RAT handover Info), and / or the terminal supports E-UTRAN capability information, such as E-UTRAN Inter RAT handover Info.

Optionally, the mobile terminal can also actively send the terminal capability information to the source access network. In this case, the mobile terminal does not need to perform the step R1, and the mobile terminal actively sends the terminal capability to the source through the added or existing air interface message. Network access.

Optionally, the foregoing process may be performed by using a message in the prior art. For example, the air interface message in step R1 may be carried in an existing packet uplink allocation message (Packet Uplink Assignment), and the corresponding message in step R2 may be Carrying in a Packet Resource Request message, or carrying it in an Additional MS Radio Access Capabilities (Additional MS Radio Access Capabilities), or using both a Packet Resource Request message and an Additional MS Radio Access Capabilities message to carry The terminal capability information message, for example, carries the capability information supporting the UTRAN in the Packet Resource Request message, and carries the capability information supporting the E-UTRAN in the Additional MS Radio Access Capabilities message. Further, as shown in FIG. 7, after the access network obtains the terminal capability information through the foregoing steps, a new message, such as an additional capability message (Additional Capability Code), is sent to the core network. The core network stores the information, and the core network can obtain and save the terminal capability information in this manner, so as to ensure that when the access network obtains the terminal capability information through the core network, the terminal capability information can be obtained.

The technical solution provided by the embodiment of the present invention, when the mobile terminal needs to switch between different RATs, can obtain the terminal capability information by using the information about the terminal capability information sent by the mobile terminal, and solve the GPRS mode in the prior art. The access network can only obtain the terminal capability information in the process of establishing or modifying the PFC in the core network, or the core network can only issue the terminal capability information reported by the mobile terminal to the access network, which cannot be switched between different RATs. The technical solution provided by the embodiment of the present invention can enable the access network to obtain the required terminal capability information before the mobile terminal needs to perform the inter-RAT handover, and ensure the successful handover of the mobile terminal between different RATs.

The embodiment of the present invention further provides a network device. As shown in FIG. 8 , the device includes: a first receiving unit 81, configured to receive, by using a terminal capability sent by a core network, a sending information in a wireless capability update process; or Receiving a downlink data packet message sent by the core network; or, when the terminal capability information is changed or the mobile terminal completes the location update, the receiving the base station subsystem PFC message sent by the core network; wherein the terminal capability sending information includes support Terminal capability information of the UTRAN and/or terminal capability information supporting E-UTRAN; the downlink data packet message or the base station subsystem PFC message carrying terminal capability information;

The first obtaining unit 82 is configured to parse the terminal capability sending information or the downlink data packet message received by the first receiving unit 81 or create a base station subsystem PFC message, and obtain the terminal capability information.

Further, the terminal capability sending information is a wireless capability update response message, and the device further includes a first sending unit, where the first sending unit is configured to send a wireless capability update to the core network during the wireless capability update process. The wireless capability update response message carries the terminal capability information saved by the core network; or the first sending unit is configured to send, by using the first indicator, the wireless capability update, to the core network during the wireless capability update process. a message, the first indication identifier indicating required terminal capability information; the wireless capability update response message carrying the required indication indicated by the first indication identifier Terminal capability information.

The technical solution of the embodiment of the present invention obtains the capability information of the terminal by using the received terminal capability of the core network, and solves the problem that the access network in the GPRS mode can only obtain or modify the PFC in the core network in the prior art. The terminal capability information, or the problem that the core network only sends the terminal capability information reported by the mobile terminal to the access network and cannot be switched between different RATs, so that the access network can obtain the required terminal capability information, and the information is guaranteed. Successful handover of mobile terminals between different RATs.

A network device according to another embodiment of the present invention, as shown in FIG. 9, includes:

The second receiving unit 91 is configured to receive information that includes the terminal capability information that is sent by the mobile terminal, where the second acquiring unit 92 is configured to parse the information that includes the terminal capability information that is received by the second receiving unit 91, and obtain the terminal. The capability information, the terminal capability information includes terminal capability information supporting E-UTRAN.

Further, the second sending unit is further configured to: send, to the mobile terminal, information that requests the capability of the terminal, where the information of the capability of the requesting terminal carries a third indication identifier, to indicate required terminal capability information; The information of the terminal capability information includes required terminal capability information indicated by the third indication identifier.

The technical solution provided by the embodiment of the present invention, when the mobile terminal needs to switch between different RATs, can obtain the terminal capability information by using the information about the terminal capability information sent by the mobile terminal, where the terminal capability information includes supporting E- Terminal capability information for UTRAN. Therefore, in the prior art, in the GPRS mode, the access network can only obtain the terminal capability information in the process of establishing or modifying the PFC in the core network, or the core network only sends the terminal capability information that the mobile terminal reports to the access network to the access network. The problem that the inter-RAT handover cannot be performed is caused, or the access network in the CS mode cannot obtain the terminal capability information supporting the E-UTRAN, and the problem of handover with the E-UTRAN cannot be performed. The technical solution provided by the embodiment of the present invention enables the access network to obtain the required terminal capability information before the mobile terminal needs to perform different inter-RAT handovers, and ensures successful handover of the mobile terminal between different RATs.

The embodiment of the present invention further provides a network server, as shown in FIG. 10, including:

The information acquiring unit 01 is configured to acquire terminal capability information of the mobile terminal. a third sending unit 102, configured to send a terminal capability to send information to the access network during the wireless capability update process; or send a downlink data packet message to the access network; or, when the terminal capability information changes or the mobile terminal Upon completion of the location update, the base station subsystem PFC message is sent to the access network;

The terminal capability sending information includes terminal capability information supporting the UTRAN and/or terminal capability information supporting the E-UTRAN; and the downlink data packet message or the base station subsystem PFC message carrying the terminal capability information. Further, the method further includes: a third receiving unit, configured to: in the wireless capability update process, the receiving access network sends a wireless capability update message; the wireless capability update response message carries the terminal capability information saved by the core network; or The third receiving unit is configured to receive, by the receiving network, a first indication identifier radio capability update message, where the first indication identifier indicates required terminal capability information, and the wireless capability update The response message carries required terminal capability information indicated by the first indication identifier.

The technical solution provided by the embodiment of the present invention can enable the access network to obtain the required terminal capability information before the mobile terminal needs to perform the inter-RAT handover, and ensure the successful handover of the mobile terminal between different RATs.

The embodiment of the present invention further provides a mobile terminal, as shown in FIG.

The fourth sending unit 1 1 1 is configured to send, to the access network, information that includes terminal capability information, where the terminal capability information includes terminal capability information that supports E-UTRAN.

Further, it also includes:

a fourth receiving unit, configured to receive information about a requesting terminal capability sent by the access network, where the information of the requesting terminal capability carries a third indication identifier to indicate required terminal capability information; and the information including the terminal capability information The required terminal capability information indicated by the third indication identifier is included.

The technical solution provided by the embodiment of the present invention, when the mobile terminal needs to switch between different RATs, can obtain the terminal capability information by using the information about the terminal capability information that is sent by the mobile terminal, where the terminal capability information includes the support E. The terminal capability information of the UTRAN solves the problem that the access network in the CS mode cannot acquire the terminal capability information supporting the E-UTRAN in the CS mode, and the handover with the E-UTRAN cannot be performed. The technical solution provided by the embodiment of the present invention can be different in the mobile terminal. Before the inter-RAT handover, the access network obtains the required terminal capability information to ensure successful handover of the mobile terminal between different RATs.

For a specific working mode of each functional module in the device embodiment of the present invention, reference may be made to the method embodiment of the present invention.

The embodiment of the present invention further provides a communication system, where the system includes a network device and a network server, wherein the network device is as shown in FIG. 8, and the network server is as shown in FIG. Specifically, the following processing may be included:

The network server is configured to obtain the terminal capability information of the mobile terminal, and send the terminal capability to send the information to the network device during the wireless capability update process; or send the downlink data packet message to the network device; or Transmitting a base station subsystem PFC message to the network device when the terminal capability information is changed or the mobile terminal completes the location update;

The network device is configured to: receive, by the network server, the terminal capability to send the information during the wireless capability update process; or, receive the downlink data packet message sent by the network server; or, when the terminal capability information changes or When the mobile terminal completes the location update, the terminal station subsystem PFC message sent by the network server is received; and the terminal capability delivery information or the downlink data packet message is parsed or the base station subsystem PFC message is created, and the terminal capability information is obtained.

Further, the terminal capability sending information is a wireless capability update response message,

The network device is further configured to send a wireless capability update message to the network server during a wireless capability update process, where the network server is further configured to carry the saved by the core network in the sent wireless capability update response message Terminal capability information; or,

The network device is further configured to send, to the network server, a first indication identifier radio capability update message, where the first indication identifier indicates required terminal capability information, in the wireless capability update process; The wireless capability update response message used for sending carries the required terminal capability information indicated by the first indication identifier. A further embodiment of the present invention provides a communication system, where the system includes a network device and a mobile terminal, wherein the network device is as shown in FIG. 9, and the mobile terminal is as shown in FIG. Specifically, the following processing may be included:

The mobile terminal is configured to send, by using the network device, a message that includes terminal capability information, where the terminal capability information includes terminal capability information that supports E-UTRAN;

The network device is configured to receive a message that is sent by the mobile terminal and includes terminal capability information, and parse the message to obtain the terminal capability information.

The network device is further configured to send a message requesting the terminal capability to the mobile terminal, where the message requesting the terminal capability carries a third indication identifier to indicate required terminal capability information; The message is further configured to send the terminal capability information, where the message includes the required terminal capability information indicated by the third indication identifier.

As described above, the communication system provided by the embodiment of the present invention can use the received terminal capability of the core network to send information or downlink data packet messages or create a base station when the mobile terminal needs to perform handover between different RATs. The system PFC message, or the information about the terminal capability information sent by the mobile terminal, obtains the terminal capability information, and the terminal capability information includes the terminal capability information that supports the E-UTRAN. Therefore, in the prior art, in the GPRS mode, the access network can only obtain the terminal capability information in the process of establishing or modifying the PFC in the core network, or the core network only sends the terminal capability information that the mobile terminal reports to the access network to the access network. The problem that the inter-RAT handover cannot be performed, or the access network in the CS mode cannot obtain the terminal capability information supporting the E-UTRAN, and the problem of switching between the E-UTRAN and the E-UTRAN cannot be performed. The technical solution provided by the embodiment of the present invention can enable the access network to obtain the required terminal capability information before the mobile terminal needs to perform the inter-RAT handover, and ensure the successful handover of the mobile terminal between different RATs.

It will be apparent to those skilled in the art that the present invention can be implemented by means of software plus the necessary general hardware platform. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM, a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments. The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Claim

A method for obtaining terminal capability information, the method comprising:

The method according to claim 1, wherein before the transmitting the terminal capability sent by the core network, the method further includes:

The wireless capability update message is sent to the core network, and the terminal capability is sent by the wireless capability update response message sent by the core network.

The method according to claim 2, wherein the wireless capability update message carries a first indication identifier to indicate required terminal capability information;

The wireless capability update response message carries required terminal capability information indicated by the first indication identifier.

The method according to claim 2 or 3, wherein before the sending the wireless capability update message to the core network, the method further includes:

Receiving a downlink data packet message sent by the core network, where the downlink data packet message carries a second indication identifier to indicate terminal capability information that is included in the core network.

The method according to claim 4, wherein the method further comprises:

When the terminal capability information is changed or the mobile terminal completes the location update, the downlink data packet message that is sent by the core network and carries the second indication identifier is received.

A method for obtaining terminal capability information, the method comprising:

Receiving a downlink data packet message sent by the core network, where the downlink data packet message carries terminal capability information, where the terminal capability information includes terminal capability information supporting the global terrestrial radio access network UTRAN and/or supporting the evolved global terrestrial wireless access Terminal capability information of the network E-UTRAN;

Parsing the downlink data packet message to obtain the terminal capability information.

The method according to claim 6, wherein the method further comprises: When the terminal capability information changes or the mobile terminal completes the location update, the downlink data packet message that carries the terminal capability information sent by the core network is received.

A method for acquiring terminal capability information, where the method includes: when a terminal capability information is changed or a mobile terminal completes a location update, receiving a base station subsystem PFC message sent by a core network, where the base station is created The subsystem PFC message carries terminal capability information; parses the created base station subsystem PFC message, and acquires the terminal capability information.

A method for acquiring terminal capability information, where the method includes: receiving information that is sent by a mobile terminal and includes terminal capability information;

The method according to claim 9, wherein before the receiving the information about the terminal capability information sent by the mobile terminal, the method further includes:

The information about the capability of the terminal is sent to the mobile terminal, and the information of the capability of the requesting terminal carries a third indication identifier to indicate the required terminal capability information.

The method according to claim 10, wherein the information about the capability of the requesting terminal is carried in a capability query message, and the information including the capability information of the terminal is carried in an E-UTRAN capability change message; or ,

The information about the requesting terminal capability is carried in the capability acquisition message, and the information including the terminal capability information is carried in the capability acquisition response message; or

The information about the capability of the requesting terminal is carried in the packet uplink allocation message, where the information including the terminal capability information is carried in the packet resource request message and/or the information including the terminal capability information is carried in the wireless access capability of the additional mobile terminal. In the message.

12. A network device, the device comprising:

a first receiving unit, configured to receive, by the terminal, the terminal capability sent by the core network to send the information during the wireless capability update process; or, to receive the downlink data packet message sent by the core network; or, when the terminal capability information changes or the mobile terminal completes the location When updating, the receiving base station subsystem PFC message sent by the core network is received; The terminal capability sending information includes terminal capability information supporting UTRAN and/or terminal capability information supporting E-UTRAN; the downlink data packet message or creating a base station subsystem PFC message carrying terminal capability information;

The network device according to claim 12, wherein the terminal capability is sent in a wireless capability update response message, and the device further includes a first sending unit,

The first sending unit is configured to send, by the wireless capability update process, a wireless capability update message to the core network, where the wireless capability update response message carries the terminal capability information saved by the core network; or

The first sending unit is configured to send, to the core network, a first indication identifier radio capability update message, where the first indication identifier indicates required terminal capability information, and the radio capability update response message is sent to the core network. Carrying required terminal capability information indicated by the first indication identifier.

14. A network device, the device comprising:

The network device according to claim 14, further comprising a second sending unit, wherein the second sending unit is configured to send, to the mobile terminal, information requesting capability of the terminal, where the capability of the requesting terminal is The information carries a third indication identifier to indicate required terminal capability information. The information including the terminal capability information includes required terminal capability information indicated by the third indication identifier.

16. A network server, comprising:

a third sending unit, configured to send a terminal capability to send information to the access network during the wireless capability update process; or send a downlink data packet message to the access network; or, when the terminal capability information changes or the mobile terminal completes the location When updating, sending a base station subsystem PFC message to the access network; The terminal capability sending information includes terminal capability information supporting UTRAN and/or terminal capability information supporting E-UTRAN; and the downlink data packet message or the base station subsystem PFC message carries terminal capability information.

17. The network server according to claim 16, further comprising a third receiving unit,

The third receiving unit is configured to: in the wireless capability update process, the receiving access network sends a wireless capability update message; the wireless capability update response message carries the terminal capability information saved by the core network; or

The third receiving unit is configured to receive, by the receiving network, a first indication identifier radio capability update message, where the first indication identifier indicates required terminal capability information, and the wireless capability update The response message carries required terminal capability information indicated by the first indication identifier.

18. A mobile terminal, comprising:

And a fourth sending unit, configured to send, to the access network, information that includes terminal capability information, where the terminal capability information includes terminal capability information that supports E-UTRAN.

The mobile terminal according to claim 18, further comprising:

A communication system, characterized in that the system comprises the network device according to claim 12 or 13 and the network server according to claim 16 or 17.

A communication system, characterized in that the system is the network device according to claim 14 or 15, and the mobile terminal according to claim 18 or 19.