WO2013143223A1 - 分组域短信的实现方法、系统和用户设备 - Google Patents

分组域短信的实现方法、系统和用户设备 Download PDF

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Publication number
WO2013143223A1
WO2013143223A1 PCT/CN2012/076000 CN2012076000W WO2013143223A1 WO 2013143223 A1 WO2013143223 A1 WO 2013143223A1 CN 2012076000 W CN2012076000 W CN 2012076000W WO 2013143223 A1 WO2013143223 A1 WO 2013143223A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
short message
management entity
packet domain
mobility management
Prior art date
Application number
PCT/CN2012/076000
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English (en)
French (fr)
Inventor
许辉
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP12872406.9A priority Critical patent/EP2731365A4/en
Priority to US14/130,357 priority patent/US9237429B2/en
Publication of WO2013143223A1 publication Critical patent/WO2013143223A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/10—Mobility data transfer between location register and external networks

Definitions

  • the present invention relates to a short message service (SMS) implementation technology of the 3GPP (3GPP, 3rd Generation Partnership Project), and particularly relates to a packet domain (PS, Packet Switch domain) short message in an evolved packet system (EPS, Implementation methods, systems, and user equipment in Evolved Packet System).
  • SMS short message service
  • 3GPP 3rd Generation Partnership Project
  • EPS Packet Switch domain
  • CS circuit switching
  • Circuit Switch services, such as voice services and short message (SMS) services
  • PS packet switched
  • Packet Switch Packet Switch
  • LTE Long Term Evolution
  • the LTE-based system is called an evolved packet system, and the 3GPP EPS architecture is shown in Figure 1.
  • Roaming is an important function of mobile communication networks. With roaming protocols, different operators can allow users to share their networks. Roaming generally occurs between operators' networks deployed in different geographical areas. In order to identify the original network to which the user belongs and the new network to which the user is roaming, the home site and the visited place are generally distinguished by the visited home. When the network of the home location and the visited place are the same, such as LTE or Universal Mobile Telecommunications System (UMTS) networks, it is called in-band roaming. Even in-band roaming, the services provided by the home and visited networks may be different.
  • UMTS Universal Mobile Telecommunications System
  • the Short Message Service is used to send information between a Short Message Entity (SME) and a User Equipment through a Service Center (SC).
  • the SMS includes a mobile originating (MO, Mobile Originated) and mobile called (MT, Mobile Terminating) services, that is, including user equipment to send or receive information.
  • MO Mobile Originated
  • MT Mobile Terminating
  • the network architecture of CS SMS transmission is shown in Figure 2. It includes SME and SMS Service-Service Center (SMS-SC) outside the 3GPP or GSM network, in 3GPP.
  • SMS-SC SMS Service-Service Center
  • SMS GMSC Short Message-Gateway Mobile Switching Center
  • SMS IWMSC Short Message-Interconnect Mobile Switching Center
  • SMS Routing Router
  • MSC Mobile Switching Center
  • VLR Visit Location Register
  • SGSN service GPRS support node
  • MS Mobile Station
  • PS-only SMS that is, the SMS is implemented by the PS domain.
  • PS-only includes two cases: First, the SMS can only be implemented through the PS domain, that is, PS-only; Second, if SMS cannot be implemented by PS, it can also be implemented by CS, ie PS-preferred
  • the SMS in 3GPP can be implemented through the CS domain or the PS domain.
  • the traditional 2/3G network generally uses the CS domain short message.
  • the core network uses the packet architecture, and the following schemes are implemented for the EPS short message: SMS over IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), Circuit Domain Fallback (CSFB, CS FallBack), SMS over SGs, etc.
  • Figure 3 shows the EPS structure of CSFB and SMS over SGs.
  • the above solutions are based on the auxiliary system or the interface of adding the packet domain to the circuit domain to implement SMS.
  • there is no specific solution for the PS SMS in the EPS For the LTE in-band roaming scenario, how to implement SMS is also not solved.
  • the main purpose of the embodiment of the present invention is to provide a method, system and user equipment for implementing PS SMS, which can solve the problem of PS SMS implementation in EPS.
  • the present invention provides a packet domain short message implementation method, including: after receiving, by a user equipment, a request message that is sent by a user equipment only for an SMS-only indication, the mobile management entity queries the home subscriber server for the user.
  • the subscription information of the device receiving the subscription information of the user equipment returned by the home subscriber server;
  • the mobility management entity When the mobility management entity supports the packet domain short message, and the subscription information supports the packet domain short message, the mobility management entity sends an accept request message to the user equipment, and the mobility management entity and the user equipment pass The packet domain sends and receives text messages.
  • the foregoing method may further have the following features, the method further includes: when the mobility management entity supports a packet domain short message, the mobility management entity further sends a support packet domain to the home subscriber server. Instructions for text messages;
  • the home subscriber server After receiving the indication of supporting the packet domain short message, the home subscriber server registers the mobile management entity as a short message service node of the user equipment.
  • the above method may also have the following feature: the sending and receiving of the short message by the mobile domain between the mobile management entity and the user equipment includes:
  • the mobile management entity and the user equipment send and receive short messages through packet domain non-access stratum signaling.
  • the above method may further have the following feature, wherein the accept request message includes the following information: a location area identifier LAI; the LAI is a non-broadcast LAI, and the LAI is not associated with the visit location register VLR; the temporary mobile subscriber identity TMSI The TMSI is a reserved TMSI; and the international mobile subscriber identity IMSI attachment is for SMS-only SMS service.
  • the accept request message includes the following information: a location area identifier LAI; the LAI is a non-broadcast LAI, and the LAI is not associated with the visit location register VLR; the temporary mobile subscriber identity TMSI The TMSI is a reserved TMSI; and the international mobile subscriber identity IMSI attachment is for SMS-only SMS service.
  • the above method may also have the following features, the method further comprising:
  • the mobile management entity When the mobile management entity supports the packet domain short message and the subscription information of the user equipment does not support the packet domain short message; or the mobile management entity does not support the packet domain short message and the subscription information of the user equipment is the packet domain short message priority
  • the mobile management entity and the user equipment send and receive short messages through a circuit domain or an SGs interface; and/or,
  • the mobility management entity When the mobility management entity does not support the packet domain short message and the subscription information of the user equipment is only supporting the packet domain short message PS-only, the mobility management entity rejects the inclusion of the user equipment only for the short message service SMS-only indication. request.
  • the foregoing method may also be characterized in that the mobility management entity is a mobility management entity of a home location of the user equipment, or a mobility management entity of a visited location of the user equipment.
  • the request message including the SMS-only indication for the short message service is a joint attach/location update request message.
  • the present invention also provides a packet domain short message implementation system, including: a mobility management entity and a home user server, where:
  • the mobile management entity is configured to: after receiving the request message that is sent by the user equipment, including the SMS-only indication, to the home subscriber server, query the subscription information of the user equipment, and receive the home subscriber server to return The subscription information of the user equipment; when The mobile management entity supports the packet domain short message, and when the subscription information supports the packet domain short message, the mobility management entity sends an accept request message to the user equipment, and sends and receives a short message through the packet domain with the user equipment;
  • the home subscriber server is configured to store the subscription information of the user equipment; after receiving the request for the mobility management entity to query the subscription information of the user equipment, returning the subscription information of the user equipment to the mobility management entity .
  • the mobility management entity is further configured to: when the mobile management entity supports the packet domain short message, send an indication to the home subscriber server to support the packet domain short message;
  • the home subscriber server is further configured to register the mobility management entity as a short message service node of the user equipment after receiving the indication of supporting the packet domain short message.
  • the mobility management entity is configured to: send and receive short messages with the user equipment through packet domain non-access stratum signaling.
  • the accept request message includes the following information: a location area identifier LAI; the LAI is a non-broadcast LAI, the LAI is not associated with a visit location register VLR; a temporary mobile subscriber identity TMSI, TMSI is reserved TMSI; and International Mobile Subscriber Identity IMSI Attachment is only for SMS-only SMS-only.
  • the above system may also have the following features, and the mobility management entity is further configured to:
  • the mobile management entity When the mobile management entity supports the packet domain short message and the subscription information of the user equipment does not support the packet domain short message; or the mobile management entity does not support the packet domain short message and the subscription information of the user equipment is the packet domain short message priority
  • PS-preferred sending and receiving short messages to and from the user equipment through a circuit domain or an SGs interface; and/or,
  • the mobility management entity does not support the packet domain short message and the subscription information of the user equipment is only supporting the packet domain short message PS-only, the user equipment is rejected from the request containing only the SMS-only indication of the short message service.
  • the mobility management entity is a mobility management entity of the home location of the user equipment, or is a mobile management entity of the visited location of the user equipment.
  • the above system may also have the following features, including the only SMS-only indication for the short message service.
  • the message is a joint attach/location update request message.
  • the invention also provides a user equipment, comprising:
  • a registration unit configured to register, at the home subscriber server, whether the user equipment supports subscription information of a packet domain short message
  • a requesting unit configured to send, to the mobility management entity, a request message including an SMS-only indication for the short message service; and a short message transceiving unit configured to receive the accept request message sent by the mobility management entity, and the mobile management entity Send and receive text messages through the packet domain.
  • the foregoing user equipment may also have the following features, the user equipment is configured to: send and receive a short message with the mobility management entity by using a packet domain non-access stratum signaling.
  • An embodiment of the present invention provides a method for implementing PS SMS in an EPS: a user equipment (UE) sends an SMS-only indication to a mobility management entity (MME), and the MME sends a response to the user equipment according to the subscription data and its own capability, if the MME And the user equipment supports PS SMS, then sends and receives through the PS domain, otherwise it is sent and received through the circuit domain or SGs interface.
  • the embodiment of the invention also discloses an implementation system and user equipment of a PS domain SMS in an EPS.
  • the solution of the PS domain SMS in the EPS system can be solved by the solution of the embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of an existing 3GPP EPS
  • FIG. 2 is a schematic diagram of a network architecture of a CS domain short message transmission in the related art
  • FIG. 3 is a schematic diagram of an EPS architecture of a related art CSFB and SMS over SGs;
  • FIG. 4 is a schematic diagram of a system framework according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for implementing a PS SMS according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a method for implementing PS SMS according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic flowchart of a method for implementing PS SMS according to Embodiment 3 of the present invention.
  • FIG. 8 is a schematic structural diagram of an implementation system of a PS SMS according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment for implementing PS SMS according to an embodiment of the present invention. Preferred embodiment of the invention
  • the embodiment of the invention provides a method for implementing packet domain short message, which includes:
  • the mobile management entity After receiving the request message that is sent by the user equipment, including the SMS-only indication, the mobile management entity queries the home subscriber server for the subscription information of the user equipment, and receives the subscription of the user equipment returned by the home subscriber server. Information;
  • the mobility management entity When the mobility management entity supports the packet domain short message, and the subscription information supports the packet domain short message, the mobility management entity sends an accept request message to the user equipment, and the mobility management entity and the user equipment pass The packet domain sends and receives text messages.
  • the method further includes: when the mobility management entity supports the packet domain short message, the mobile management entity further sends an indication to the home subscriber server to support the packet domain short message;
  • the home subscriber server After receiving the indication of supporting the packet domain short message, the home subscriber server registers the mobile management entity as a short message service node of the user equipment.
  • the sending and receiving the short message by the mobile management entity and the user equipment by using the packet domain includes: sending, by the mobile management entity and the user equipment, a short message by using a packet domain non-access stratum signaling.
  • the acceptance request message includes the following information: a location area identifier LAI; the LAI is a non-broadcast LAI, and the LAI is not associated with the visit location register VLR; the temporary mobile subscriber identity TMSI, the TMSI is a reserved TMSI ; and the international mobile subscriber identity IMSI attachment is only for the SMS service SMS-only.
  • the method further includes:
  • the mobile management entity When the mobile management entity supports the packet domain short message and the subscription information of the user equipment does not support the packet domain short message; or the mobile management entity does not support the packet domain short message and the subscription information of the user equipment is the packet domain short message priority
  • the mobile management entity and the user equipment send and receive short messages through a circuit domain or an SGs interface; and/or,
  • the mobility management entity does not support packet domain short message and the subscription information of the user equipment is only The packet domain short message PS-only is supported, and the mobility management entity rejects the request of the user equipment that is only indicated by the SMS service SMS-only.
  • the mobility management entity is a mobility management entity of the home location of the user equipment, or is a mobility management entity of the visited location of the user equipment.
  • the request message including the SMS-only indication for the short message service is a joint attach/location update request message.
  • the system architecture of the present invention is as shown in FIG. 4, wherein the MME supports the SMS function, the MME connects to the GMSC/IWMSC to send and receive SMS through the E interface, and the MME connects to the HSS through the S6a interface.
  • the MME can implement the SMS through the SGs interface. Send and receive, SMS signing information can be obtained through the D interface.
  • This embodiment implements a PS SMS implementation method for a local non-roaming scenario, as shown in FIG. 5, including:
  • Step 501 The UE initiates a joint attach/location request (TAU) request, and includes an SMS-only indication in the request message.
  • TAU joint attach/location request
  • the joint attachment refers to: EPS/IMSI attach, where IMSI attach is for SMS-only; the location update refers to: TAU/LAU;
  • the combined attach/TAU is sent to the corresponding MME.
  • requests may also include SMS-only indications only for short messages, such as: service requests or other newly created request messages.
  • Step 502 The MME queries the HSS for the subscription information of the UE, and when the MME supports the PS SMS, sends an indication for supporting the PS SMS to the HSS.
  • the indication supporting the PS SMS may be carried when the subscription information is queried, or may be sent separately.
  • the MME is a serving MME in the area where the UE is located. In this embodiment, the MME supports the PS SMS function.
  • the MME receives the subscribed attach/TAU request message of the UE, and queries the HSS for the subscription information of the UE through the S6a interface;
  • the HSS is the local HSS of the UE, that is, the UE saves the subscription information in the HSS;
  • the MME sends an indication message supporting the PS SMS to the HSS.
  • the MME registers with the HSS as the MSC implementing the SMS. If the subsequent UE registers with the new MSC, the HSS replaces the MME with the new MSC as the entity implementing the SMS.
  • Step 503 the MME determines whether the subscription information is PS-only/PS-preferred, if yes, go to step 504, if no, go to step 506;
  • the PS-only subscription information includes the following two types: Only the packet domain SMS PS-only, and the packet domain SMS priority PS-preferred.
  • the PS-only means that the UE can only obtain the service through the PS, including the SMS;
  • the PS-preferred means that when the PS domain is unavailable, the UE can obtain the service through the CS domain, including the SMS;
  • the MME obtains PS-only subscription information through the S6a interface. If there is PS-only subscription information, the UE supports PS SMS, otherwise the UE does not support PS SMS.
  • Step 504 The MME sends a combined Attach/TAU accept message to the UE.
  • the acceptance message includes at least the following information: a location area identifier LAI; wherein the LAI is a non-broadcast LAI, and the LAI is not associated with any visit location register VLR;
  • the accept message further includes: a temporary mobile subscriber identity TMSI; wherein the accept message of the TMSI is reserved: the purpose of the IMSI attach is SMS-only.
  • Step 505 The PS NAS signaling is used to send and receive short messages between the MME and the UE, and the process ends.
  • the short message is encapsulated in the NAS signaling and sent and received between the MME and the UE. If the UE is in the RRC Idle mode, the MME first sends a paging or waits for the UE to connect to the network, and then sends the PS MT to the UE. SMS (Mobile Terminated- SMS, called SMS).
  • SMS Mobile Terminated- SMS, called SMS
  • Step 506 proceed according to the existing combined Attach/TAU process, and the SMS is transmitted through the CS domain.
  • the UE initiates a location update request, registers with the VLR, completes the registration/update process of the CS domain, and the SMS transmits through the CS domain.
  • the MME rejects the combined Attach/TAU of the UE; if the MME does not support the PS SMS, and the subscription information of the UE is PS-preferred, The short message is transmitted between the MME and the UE through the CS domain.
  • This embodiment is directed to in-band roaming and the home network does not support the PS SMS scenario, and implements a PS SMS processing method. As shown in FIG. 6, the method includes the following steps:
  • Step 601 The UE initiates a combined attach/TAU request, and includes an SMS-only indication in the request message.
  • This step is the same as step 501 and will not be described here.
  • Step 602 The visited MME (the visited MME) obtains the SMS subscription information on the HSS through the D interface.
  • the SMS subscription information is not provided on the S6a interface; the visited MME obtains the SMS subscription information on the HSS through the D interface; if the visited MME integrates the MSC function, the visited MME directly obtains the D interface. SMS subscription information, otherwise the MSC obtains the SMS subscription information through the D interface, and then sends it to the visited MME through the SGs interface.
  • Step 603 whether the visited MME supports PS SMS, if yes, step 604 is performed, if no, step 608 is performed;
  • the support PS SMS means that there is an E interface between the MME and the GMSC/IWMSC, and the MME can send and receive short messages through the E interface, and the MME can encapsulate the short message into the NAS signaling or parse out from the NAS signaling. SMS.
  • Step 604 The Visited MME sends a support PS SMS indication to the HSS.
  • the visited MME sends the PS SMS indication information to the HSS through the D interface. If the visited MME integrates the MSC function, the visited MME sends the information directly to the HSS through the D interface. Otherwise, the visited MME sends the indication information to the MSC through the SGs interface. The MSC then sends information to the HSS over the D interface.
  • Step 605 whether the subscription information is PS-only/PS-preferred, if yes, go to step 606, if no, go to step 608;
  • This step is the same as step 503 and will not be described here.
  • Step 606 The visited MME sends a combined Attach/TAU accept message to the UE. This step is the same as step 504, and details are not described herein.
  • Step 607 The short message is sent and received between the MME and the UE by using the PS NAS signaling, and the process ends. This step is the same as step 505, and details are not described herein again.
  • Step 608 The visited MME and the UE send and receive short messages through the SGs interface, and the process ends.
  • the SGs interface may be located between the MME and the MSC, or may be located inside the MME. If the SGs are located inside the MME, the MME integrates the MSC function.
  • the SGs are located between the MME and the MSC server, and the SGs are used for the mobility management and paging process between the EPS and the CS domain, based on the Gs interface (SGSN-MSC server) process. SGs are also used to transport MO/MT SMS.
  • the in-band roaming and the visited network do not support the PS SMS scenario, and the method for processing the effective time in the trigger information is implemented.
  • the method includes the following steps: Step 701: The UE initiates joint attaching /combined attachment (TAU) request, including an SMS-only indication in the request message;
  • TAU joint attaching /combined attachment
  • This step is the same as step 501 and will not be described here.
  • Step 702 The visited MME obtains the SMS subscription information on the HSS through the D interface.
  • the visited MME does not support the PS SMS. Therefore, the SMS subscription information cannot be obtained through the enhanced S6a interface, and the visited MME obtains the SMS subscription information through the D interface.
  • the visited MME directly connects through D.
  • the port obtains the SMS subscription information.
  • the MSC obtains the SMS subscription information through the D interface, and then sends the SMS subscription information to the visited MME through the SGs interface.
  • Step 703 the subscription information is PS-only, if yes, go to step 704, if no, then go to step 705;
  • SMS is implemented through the SGs interface.
  • Step 704 The visited MME sends a reject IMSI attach/LAU message to the UE, and the process ends.
  • the reject message includes: the reason for the rejection; the reason for the rejection is that the visited MME does not support the PS SMS, and the subscription information requires PS-only.
  • Step 705 The visited MME sends a combined Attach/TAU accept message to the UE.
  • the accept message includes: an IMSI attach for SMS-only indication; the accept message further includes information in related technologies, such as LAI, TMSI, etc., visited MME
  • the VLR initiates a location update request, which is not described here.
  • Step 706 The visited MME and the UE send and receive short messages through the SGs interface, and the process ends.
  • This step is the same as step 608, and is not described here.
  • the present invention further provides a PS SMS processing system.
  • the system includes: a mobility management entity MME 81, a home subscriber server HSS82, and a user equipment UE83;
  • the MME 41 is configured to receive the joint attach/location update request message sent by the UE 83, request the subscription information from the HSS 82, and send the indication information supporting the SMS, receive the subscription information of the UE sent by the HSS 82, and support the packet domain short message and the subscription information.
  • a joint attach/location update accept message is sent to the UE 83, and the UE 83 transmits and receives a short message through the NAS signaling of the packet domain; generating SMS charging information; and is further configured to transmit and receive with the UE 83 through the packet domain.
  • the joint attach/location update accept message includes the following information: a location area identifier LAI; the LAI is a non-broadcast LAI, the LAI is not associated with the visit location register VLR;
  • the mobile subscriber identity TMSI, the TMSI is the reserved TMSI; and the international mobile subscriber identity IMSI attachment is only for the short message service SMS-only.
  • the HSS 82 is configured to store the subscription information of the MME 81 and the UE 83, receive the query request of the MME 81 and the indication of supporting the SMS, and send the subscription information of the UE 83 to the MME 81.
  • the MME 81 registers with the HSS 82, and the HSS 82 uses the MME 81 as a short message service node (such as an MSC) that implements SMS. Registering, when the UE 83 registers with the new MSC, the HSS 82 updates the MME 81 with a new MSC for implementing the SMS;
  • a short message service node such as an MSC
  • the UE 83 is configured to send the subscription information to the HSS 82, send a joint attach/location update request message to the MME 81, receive the joint attach/location update accept message sent by the MME 81, and send and receive the short message through the packet domain.
  • the MME 81 may be the MME of the visited place or the MME of the home location.
  • the MME 81 is further configured to: when it supports the packet domain short message and does not support the packet domain short message in the subscription information of the UE 83; or does not support the packet domain short message itself and the subscription information of the UE 83 is the packet domain short message priority PS-preferred, Transmitting and receiving text messages with the UE 83 through a circuit domain or an SGs interface; and/or,
  • the joint attachment/location update request of the UE 83 is rejected.
  • the present invention further provides a user equipment for implementing PS SMS.
  • the user equipment includes: a requesting unit 91, a short message transceiving unit 92, and a registration unit 93;
  • the requesting unit 91 is configured to send a joint attach/location update request message to the MME 81.
  • the short message sending and receiving unit 92 is configured to receive and send a short message with the mobile management entity through the packet domain after receiving the attach/location update accept message sent by the MME 81. Specifically, the short message is sent and received through non-access stratum signaling.
  • the registration unit 93 is configured to register, at the HSS, whether the user equipment supports the subscription information of the packet domain short message.
  • An embodiment of the present invention provides a method for implementing PS SMS in an EPS: a user equipment (UE) sends an SMS-only indication to a mobility management entity (MME), and the MME sends a response to the user equipment according to the subscription data and its own capability, if the MME And the user equipment supports PS SMS, then sends and receives through the PS domain, otherwise it is sent and received through the circuit domain or SGs interface.
  • the embodiment of the invention also discloses an implementation system and user equipment of a PS domain SMS in an EPS.
  • the solution of the PS domain SMS in the EPS system can be solved by the solution of the embodiment of the present invention.

Abstract

一种分组域短信实现方法，包括：移动管理实体收到用户设备发送的包含只为短信服务SMS-only指示的请求消息后，向归属用户服务器查询所述用户设备的签约信息，接收所述归属用户服务器返回的所述用户设备的签约信息；当所述移动管理实体支持分组域短信，以及所述签约信息中支持分组域短信时，所述移动管理实体向所述用户设备发送接受请求消息，且所述移动管理实体与所述用户设备之间通过分组域收发短信。本发明的实施方式还提供一种分组域短信实现系统和一种用户设备。通过本发明的方案，能够在EPS系统实现分组域短信。

Description

分组域短信的实现方法、 系统和用户设备
技术领域
本发明涉及第三代合作伙伴计划 （ 3GPP , 3rd Generation Partnership Project ) 的短信（SMS, Short Message Service ) 实现技术， 尤其涉及一种分 组域 (PS , Packet Switch domain)短信在演进分组系统 (EPS , Evolved Packet System)中的实现方法、 系统和用户设备。
背景技术
移动通信网络业务从技术实现上可以分成两类： 一是电路交换（CS ,
Circuit Switch )业务，如话音业务和短信（ SMS )业务；二是分组交换（ PS, Packet Switch )业务， 如网页浏览业务。
为了有效地利用移动网络资源， 3GPP提出了长期演进（ LTE, Long Term Evolution ) , LTE是完全基于分组的系统架构， 通过分组架构支持实时业务 和语音会话业务。 基于 LTE的系统称为演进分组系统， 3GPP的 EPS架构如 图 1所示。
漫游是移动通信网络的一个重要功能， 通过漫游协议， 不同运营商可以 允许用户共享他们的网络， 漫游一般发生在部署在不同地理区域的运营商网 络之间。 为了标识用户所属的原网络和漫游到的新网络， 一般用归属地 home 和拜访地 visited区分二者。 当归属地和拜访地的网络性质相同， 如都是 LTE 或通用移动通信系统 ( UMTS , Universal Mobile Telecommunications System ) 网络， 则称为带内漫游。 即使是带内漫游， 归属地和拜访地网络提供的业务 也可能不同。
短信服务（ SMS )是为了通过业务中心 （ SC, Service Centre )在短信实 体（SME, Short Message Entity )和用户设备之间发送信息。 SMS包括移动 主叫（MO, Mobile Originated )和移动被叫（MT, Mobile Terminating )业务， 即包括用户设备发送或者接收信息。 CS短信发送的网络架构如图 2所示， 在 3GPP或 GSM网络外部包括 SME和短信服务-业务中心（ SMS-SC ) ,在 3GPP 或 GSM 网络内部包括短消息 -网关移动交换中心 （SMS GMSC )或短信息- 互联移动交换中心（ SMS IWMSC )、 SMS路由（ Router )、移动交换中心（ MSC ) 或拜访位置寄存器（VLR )或服务 GPRS支持节点（SGSN ) 、 移动台 （MS, Mobile Station ) 。
针对 LTE分组接入的要求， 3GPP提出了 PS-only SMS的需求， 即 SMS 通过 PS域实现， 这里的 PS-only包括两种情况： 一是 SMS只能通过 PS域实 现， 即 PS-only; 二是如果 SMS不能通过 PS实现， 也可以通过 CS实现， 即 PS-preferred„
目前 3GPP中的 SMS可以通过 CS域或 PS域实现， 其中传统的 2/3G网 络一般釆用 CS域短信， 对于 EPS系统， 核心网釆用分组架构， 实现 EPS短 信有以下几种方案： SMS over IMS(IP Multimedia Subsystem, IP多媒体子系 统)， 电路域回落（ CSFB, CS FallBack ) , SMS over SGs等， 图 3给出了 CSFB 和 SMS over SGs的 EPS结构示意图。以上方案都是基于辅助系统或增加分组 域到电路域的接口实现 SMS, 在相关技术中， 对于 EPS中 PS SMS, 还没有 具体的解决方案。 对于 LTE带内漫游场景， 如何实现 SMS也没有解决。
发明内容
本发明实施例的主要目的在于提供一种 PS SMS的实现方法、 系统和用 户设备， 能够解决 EPS中 PS SMS实现的问题。
为了解决上述问题， 本发明提供了一种分组域短信实现方法， 包括： 移动管理实体收到用户设备发送的包含只为短信服务 SMS-only指示的 请求消息后， 向归属用户服务器查询所述用户设备的签约信息， 接收所述归 属用户服务器返回的所述用户设备的签约信息； 以及
当所述移动管理实体支持分组域短信， 以及所述签约信息支持分组域短 信时， 所述移动管理实体向所述用户设备发送接受请求消息， 所述移动管理 实体与所述用户设备之间通过分组域收发短信。
上述方法还可具有以下特点， 所述方法还包括： 所述移动管理实体支持 分组域短信时， 所述移动管理实体还向所述归属用户服务器发送支持分组域 短信的指示；
所述归属用户服务器收到所述支持分组域短信的指示后， 将所述移动管 理实体作为所述用户设备的短信服务节点进行注册。 上述方法还可具有以下特点， 所述移动管理实体与所述用户设备之间通 过分组域收发短信包括：
所述移动管理实体与所述用户设备之间通过分组域非接入层信令收发短 信。
上述方法还可具有以下特点， 其中， 所述接受请求消息中包含以下信息： 位置区域标识 LAI; 所述 LAI为非广播 LAI , 且所述 LAI不关联到拜访位置 寄存器 VLR; 临时移动用户标识 TMSI, 所述 TMSI为保留的 TMSI; 以及国 际移动用户标识 IMSI附着的目的是只为短信服务 SMS-only。
上述方法还可具有以下特点， 所述方法还包括：
当所述移动管理实体支持分组域短信且所述用户设备的签约信息中不支 持分组域短信； 或者， 所述移动管理实体不支持分组域短信且所述用户设备 的签约信息为分组域短信优先 PS-preferred时，所述移动管理实体与所述用户 设备之间通过电路域或 SGs接口收发短信； 和 /或，
当所述移动管理实体不支持分组域短信且所述用户设备的签约信息为只 支持分组域短信 PS-only, 所述移动管理实体拒绝所述用户设备的包含只为短 信服务 SMS-only指示的请求。
上述方法还可具有以下特点， 所述移动管理实体为所述用户设备的归属 地的移动管理实体， 或者， 为所述用户设备的拜访地的移动管理实体。
上述方法还可具有以下特点，所述包含只为短信服务 SMS-only指示的请 求消息为联合附着 /位置更新请求消息。
本发明还提供一种分组域短信实现系统， 包括： 移动管理实体和归属用 户服务器， 其中：
所述移动管理实体设置成， 收到用户设备发送的包含只为短信服务 SMS-only指示的请求消息后， 向所述归属用户服务器查询所述用户设备的签 约信息， 接收所述归属用户服务器返回的所述用户设备的签约信息； 当所述 移动管理实体支持分组域短信， 以及所述签约信息中支持分组域短信时， 所 述移动管理实体向所述用户设备发送接受请求消息， 并与所述用户设备之间 通过分组域收发短信； 以及
所述归属用户服务器设置成， 存储所述用户设备的签约信息； 接收到所 述移动管理实体查询所述用户设备的签约信息的请求后， 返回所述用户设备 的签约信息给所述移动管理实体。
上述系统还可具有以下特点， 所述移动管理实体还设置成： 当所述移动 管理实体支持分组域短信时， 向所述归属用户服务器发送支持分组域短信的 指示；
所述归属用户服务器还设置成， 收到所述支持分组域短信的指示后， 将 所述移动管理实体作为所述用户设备的短信服务节点进行注册。
上述系统还可具有以下特点， 所述移动管理实体是设置成： 与所述用户 设备之间通过分组域非接入层信令收发短信。
上述系统还可具有以下特点， 所述接受请求消息中包含以下信息： 位置 区域标识 LAI; 所述 LAI为非广播 LAI, 所述 LAI不关联到拜访位置寄存器 VLR; 临时移动用户标识 TMSI, 所述 TMSI为保留的 TMSI; 以及国际移动 用户标识 IMSI附着的目的是只为短信服务 SMS-only。
上述系统还可具有以下特点， 所述移动管理实体还设置成：
当所述移动管理实体支持分组域短信且所述用户设备的签约信息中不支 持分组域短信； 或者， 所述移动管理实体不支持分组域短信且所述用户设备 的签约信息为分组域短信优先 PS-preferred时，与所述用户设备之间通过电路 域或 SGs接口收发短信； 和 /或，
当所述移动管理实体不支持分组域短信且所述用户设备的签约信息为只 支持分组域短信 PS-only, 拒绝所述用户设备的包含只为短信服务 SMS-only 指示的请求。
上述系统还可具有以下特点， 所述移动管理实体为所述用户设备的归属 地的移动管理实体， 或者， 为所述用户设备的拜访地的移动管理实体。
上述系统还可具有以下特点，所述包含只为短信服务 SMS-only指示的请 求消息为联合附着 /位置更新请求消息。
本发明还提供一种用户设备， 包括：
注册单元， 其设置成在归属用户服务器注册所述用户设备是否支持分组 域短信的签约信息；
请求单元，其设置成向移动管理实体发送包含只为短信服务 SMS-only指 示的请求消息； 以及 短信收发单元， 其设置成收到移动管理实体发送的接受请求消息后， 与 所述移动管理实体通过分组域收发短信。
上述用户设备还可具有以下特点， 所述用户设备是设置成： 与所述移动 管理实体之间通过分组域非接入层信令收发短信。
本发明实施例提供了一种在 EPS中 PS SMS的实现方法： 用户设备 (UE) 向移动管理实体 (MME)发送 SMS-only指示， MME根据签约数据和自身能力 向用户设备发送响应， 如果 MME和用户设备支持 PS SMS, 则通过 PS域收 发，否则通过电路域或者 SGs接口收发。本发明实施例同时还公开了一种 EPS 中 PS域 SMS的实现系统和用户设备。 通过本发明实施例的方案， 能够解决 PS域 SMS在 EPS系统的实现问题。 附图概述
图 1为现有 3GPP EPS结构示意图；
图 2为相关技术中 CS域短信发送的网络架构示意图；
图 3为相关技术 CSFB和 SMS over SGs的 EPS架构示意图；
图 4为本发明实施例的系统框架示意图；
图 5为本发明实施例一 PS SMS的实现方法的流程示意图；
图 6为本发明实施例二 PS SMS的实现方法的流程示意图；
图 7为本发明实施例三 PS SMS的实现方法的流程示意图；
图 8为本发明实施例 PS SMS的实现系统的结构示意图；
图 9为本发明实施例实现 PS SMS的用户设备结构示意图。 本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是， 在 不冲突的情况下， 本申请中的实施例及实施例中的特征可以相互任意组合。
本发明实施例提供一种分组域短信实现方法， 包括：
移动管理实体收到用户设备发送的包含只为短信服务 SMS-only指示的 请求消息后， 向归属用户服务器查询所述用户设备的签约信息， 接收所述归 属用户服务器返回的所述用户设备的签约信息； 以及
当所述移动管理实体支持分组域短信， 以及所述签约信息支持分组域短 信时， 所述移动管理实体向所述用户设备发送接受请求消息， 所述移动管理 实体与所述用户设备之间通过分组域收发短信。
其中， 所述方法还包括： 所述移动管理实体支持分组域短信时， 所述移 动管理实体还向所述归属用户服务器发送支持分组域短信的指示；
所述归属用户服务器收到所述支持分组域短信的指示后， 将所述移动管 理实体作为所述用户设备的短信服务节点进行注册。
其中，所述移动管理实体与所述用户设备之间通过分组域收发短信包括： 所述移动管理实体与所述用户设备之间通过分组域非接入层信令收发短 信。
其中， 所述接受请求消息中包含以下信息： 位置区域标识 LAI; 所述 LAI 为非广播 LAI, 且所述 LAI不关联到拜访位置寄存器 VLR; 临时移动用户标 识 TMSI,所述 TMSI为保留的 TMSI; 以及国际移动用户标识 IMSI附着的目 的是只为短信服务 SMS-only。
其中， 所述方法还包括：
当所述移动管理实体支持分组域短信且所述用户设备的签约信息中不支 持分组域短信； 或者， 所述移动管理实体不支持分组域短信且所述用户设备 的签约信息为分组域短信优先 PS-preferred时，所述移动管理实体与所述用户 设备之间通过电路域或 SGs接口收发短信； 和 /或，
当所述移动管理实体不支持分组域短信且所述用户设备的签约信息为只 支持分组域短信 PS-only, 所述移动管理实体拒绝所述用户设备的包含只为短 信服务 SMS-only指示的请求。
其中， 所述移动管理实体为所述用户设备的归属地的移动管理实体， 或 者， 为所述用户设备的拜访地的移动管理实体。
其中， 所述包含只为短信服务 SMS-only指示的请求消息为联合附着 /位 置更新请求消息。
本发明的系统架构如图 4所示， 其中 MME支持 SMS功能， MME通过 E接口连接到 GMSC/IWMSC收发 SMS, MME通过 S6a接口连接到 HSS; 带内漫游场景下， MME可以通过 SGs接口实现 SMS收发， 可通过 D接口获 取 SMS签约信息。
实施例一
本实施例针对本地非漫游的场景， 实现一种 PS SMS的实现方法，如图 5 所示， 包括：
步骤 501 , UE发起联合附着 /位置更新 (combined Attach/TAU)请求， 在请 求消息中包含 SMS-only指示；
所述联合附着是指： EPS/IMSI attach,其中 IMSI attach是为了 SMS-only; 所述位置更新是指： TAU/LAU;
所述 combined attach/TAU发送到相应的 MME。
除联合附着 /位置更新消息外， 本领域技术人员可能容易想到其它请求也 可以包含只为短信服务 SMS-only指示， 如： 业务请求或新建立的其它请求消 息。
步骤 502, MME向 HSS查询 UE的签约信息， MME支持 PS SMS时， 向 HSS发送支持 PS SMS的指示；
其中， 可以在查询签约信息时携带支持 PS SMS的指示， 也可以单独发 送。 所述 MME是指 UE所在区域的服务 MME, 本实施例中， 所述 MME支 持 PS SMS功能；
所述 MME收到 UE的 combined attach/TAU请求消息， 通过 S6a接口向 HSS查询 UE的签约信息； 所述 HSS为 UE的本地 HSS, 即 UE在所述 HSS 中保存了签约信息； 所述签约信息包含 PS-only相关信息；
所述 MME向所述 HSS发送支持 PS SMS的指示信息， 此时 MME作为 实现 SMS的 MSC在 HSS注册， 如果后续 UE注册到新的 MSC, 则 HSS用 新的 MSC替代 MME作为实现 SMS的实体。
步骤 503 ,所述 MME判断签约信息是否为 PS-only/PS-preferred,如果是， 转向步骤 504, 如果否， 转向步骤 506;
具体的， PS-only签约信息包括以下两种： 只支持分组域短信 PS-only, 分 组域短信优先 PS-preferred。 其中 PS-only是指 UE只能通过 PS获取服务， 包 括 SMS; PS-preferred是指当 PS域为不可用时， UE可通过 CS域获取服务， 包括 SMS;
具体的， MME通过 S6a接口获取 PS-only签约信息， 如果存在 PS-only 签约信息， 说明 UE支持 PS SMS, 否则 UE不支持 PS SMS。
步骤 504 , MME向 UE发送 combined Attach/TAU接受消息；
所述接受消息中至少包含以下信息： 位置区域标识 LAI; 其中 LAI为非 广播 LAI, 所述 LAI不关联到任何拜访位置寄存器 VLR;
所述接受消息中还包括： 临时移动用户标识 TMSI; 其中 TMSI为保留的 所述接受消息中还包括： IMSI attach的目的是 SMS-only。
步骤 505 , MME和 UE之间釆用 PS NAS信令收发短信， 流程结束。 所述短信被封装在 NAS信令中， 并在 MME和 UE之间收发； 如果所述 UE处于 RRC Idle模式，则 MME首先发起寻呼或者等待 UE连接到网络之后， 再向 UE发送 PS MT-SMS ( Mobile Terminated- SMS, 被叫短信） 。
步骤 506, 根据现有 combined Attach/TAU流程继续进行， SMS通过 CS 域传输。 具体的， UE发起位置更新请求， 注册到 VLR, 完成 CS域的注册 /更新 过程， SMS通过 CS域传输。
上述实施例中，如果 MME不支持 PS SMS,且 UE的签约信息是 PS-only, 则 MME拒绝 UE的 combined Attach/TAU; 如果 MME不支持 PS SMS, 且 UE的签约信息是 PS-preferred, 则 MME和 UE之间通过 CS域传输短信。
实施例二
本实施例针对带内漫游且归属地网络不支持 PS SMS场景， 实现一种 PS SMS的处理方法， 如图 6所示， 该方法包括以下几个步骤：
步骤 601 , UE发起联合附着 /位置更新 (combined Attach/TAU)请求， 在该 请求消息中包含 SMS-only指示；
本步骤与步骤 501相同， 这里不再赘述。
步骤 602 , 拜访地 MME ( visited MME )通过 D接口获取 HSS上的 SMS 签约信息；
由于归属地网络不支持 PS SMS,所以在 S6a接口不提供 SMS签约信息； visited MME通过 D接口获取 HSS上的 SMS签约信息；如果所述 visited MME 集成了 MSC功能， 则 visited MME直接通过 D接口获取 SMS签约信息， 否 则 MSC通过 D接口获取 SMS签约信息，再通过 SGs接口发送到 visited MME。
步骤 603 , visited MME是否支持 PS SMS, 如果是， 则执行步骤 604, 如 果否， 则执行步骤 608;
所述支持 PS SMS是指 MME和 GMSC/IWMSC之间有 E接口，所述 MME 可以通过 E接口收发短信， 同时所述 MME可以将短信封装到 NAS信令中， 或者从 NAS信令中解析出短信。
步骤 604, Visited MME向 HSS发送支持 PS SMS指示；
所述 visited MME通过 D接口向 HSS发送支持 PS SMS指示信息； 如果所述 visited MME集成了 MSC功能， 则 visited MME直接通过 D接 口向 HSS发送信息， 否则 visited MME通过 SGs接口发送指示信息到 MSC, 然后 MSC通过 D接口向 HSS发送信息。
步骤 605,签约信息是否为 PS-only/PS-preferred,如果是， 转向步骤 606, 如果否， 转向步骤 608;
本步骤与步骤 503相同， 这里不再赘述。
步骤 606 , visited MME向 UE发送 combined Attach/TAU接受消息； 本步骤与步骤 504相同， 这里不再赘述。
步骤 607 , 短信釆用 PS NAS信令在 MME和 UE之间收发， 流程结束； 本步骤与步骤 505相同， 这里不再赘述。
步骤 608 , visited MME和 UE通过 SGs接口收发短信， 流程结束。 所述 SGs接口可以位于 MME和 MSC之间 , 或者位于 MME内部 , 如果 所述 SGs位于 MME内部， 则所述 MME集成了 MSC功能；
所述 SGs位于 MME和 MSC server之间， SGs用于 EPS与 CS域之间的 移动管理和寻呼流程， 基于 Gs接口 （ SGSN-MSC server ) 流程。 SGs还用于 传输 MO/MT SMS。
所述通过 SGs接口收发短信釆用相关技术中的步骤， 这里不再赘述。
实施例三
本实施例针对带内漫游且拜访地网络不支持 PS SMS场景， 实现一种触 发信息中有效时间的处理方法， 如图 7所示， 该方法包括以下几个步骤： 步骤 701 , UE发起联合附着 /位置更新 (combined Attach/TAU)请求， 在请 求消息中包含 SMS-only指示；
本步骤与步骤 501相同， 这里不再赘述。
步骤 702 ,拜访地 visited MME通过 D接口获取 HSS上的 SMS签约信息； 所述 visited MME不支持 PS SMS, 因此无法通过增强的 S6a接口获取 SMS签约信息， 则 visited MME通过 D接口获取 SMS签约信息；
如果所述 visited MME集成了 MSC功能， 则 visited MME直接通过 D接 口获取 SMS签约信息， 否则 MSC通过 D接口获取 SMS签约信息， 再通过 SGs接口发送到 visited MME。
步骤 703 , 签约信息是否为 PS-only, 如果是， 转向步骤 704, 如果否， 则转向步骤 705;
如果所述签约信息为 PS-only, 则无法实现 PS SMS;
如果所述签约信息为 PS-preferred, 则通过 SGs接口实现 SMS。
步骤 704, visited MME向 UE发送拒绝 IMSI attach/LAU消息 ,流程结束。 所述拒绝消息包括：拒绝原因；拒绝原因为 visited MME不支持 PS SMS, 且签约信息要求 PS-only。
步骤 705 , visited MME向 UE发送 combined Attach/TAU接受消息； 所述接受消息包含： IMSI attach for SMS-only指示； 所述接受消息还包 括相关技术中的信息， 如 LAI, TMSI等， visited MME向 VLR发起位置更新 请求， 这里不再赘述。
步骤 706 , visited MME和 UE通过 SGs接口收发短信 , 流程结束。
本步骤与步骤 608相同， 这里不再赘述。
本发明还提供一种 PS SMS的处理系统， 如图 8所示， 所述系统包括： 移动管理实体 MME 81、归属用户服务器 HSS82,还可包括，用户设备 UE83; 其中，
MME41 ,设置成接收 UE83发送的联合附着 /位置更新请求消息，向 HSS82 请求签约信息和发送支持 SMS的指示信息，接收 HSS82发送的 UE的签约信 息；当自身支持分组域短信，以及所述签约信息中支持分组域短信时，向 UE83 发送联合附着 /位置更新接受消息，与 UE83通过分组域的 NAS信令收发短信； 产生 SMS计费信息； 还设置成， 与所述 UE83之间通过分组域收发短信前， 发送联合附着 /位置更新接受消息；所述联合附着 /位置更新接受消息中包含以 下信息： 位置区域标识 LAI; 所述 LAI为非广播 LAI, 该 LAI不关联到拜访 位置寄存器 VLR; 临时移动用户标识 TMSI, 所述 TMSI为保留的 TMSI; 以 及国际移动用户标识 IMSI附着的目的是只为短信服务 SMS-only。 HSS82, 设置成存储 MME81和 UE83的签约信息， 接收 MME81的查询 请求和支持 SMS的指示， 向 MME81发送 UE83的签约信息； MME81注册 到 HSS82, HSS82将 MME81作为一个实现 SMS的短信服务节点（比如 MSC ) 进行注册， 当 UE83注册到新的 MSC时， HSS82用新的 MSC更新 MME81 用于实现 SMS;
UE83 , 设置成向 HSS82发送签约信息， 向 MME81发送联合附着 /位置 更新请求消息； 接收 MME81发送的联合附着 /位置更新接受消息； 通过分组 域收发短信。
MME81可以是拜访地的 MME, 也可以是归属地的 MME。
MME81还设置成， 当自身支持分组域短信且所述 UE83的签约信息中不 支持分组域短信； 或者， 自身不支持分组域短信且所述 UE83 的签约信息为 分组域短信优先 PS-preferred时，与所述 UE83之间通过电路域或 SGs接口收 发短信； 和 /或，
当自身不支持分组域短信且所述 UE83 的签约信息为只支持分组域短信 PS-only , 拒绝所述 UE83的联合附着 /位置更新请求。
本发明还提供一种实现 PS SMS的用户设备， 如图 9所示， 该用户设备 包括： 请求单元 91、 短信收发单元 92和注册单元 93; 其中，
请求单元 91 , 设置成向 MME81发送联合附着 /位置更新请求消息； 短信收发单元 92,设置成收到 MME81发送的附着 /位置更新接受消息后， 与所述移动管理实体通过分组域收发短信。 具体的， 通过非接入层信令收发 短信。
注册单元 93 ,设置成在 HSS注册所述用户设备是否支持分组域短信的签 约信息.
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保护 范围。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 所述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
工业实用性
本发明实施例提供了一种在 EPS中 PS SMS的实现方法： 用户设备 (UE) 向移动管理实体 (MME)发送 SMS-only指示， MME根据签约数据和自身能力 向用户设备发送响应， 如果 MME和用户设备支持 PS SMS, 则通过 PS域收 发，否则通过电路域或者 SGs接口收发。本发明实施例同时还公开了一种 EPS 中 PS域 SMS的实现系统和用户设备。 通过本发明实施例的方案， 能够解决 PS域 SMS在 EPS系统的实现问题。

Claims

权 利 要 求 书
1、 一种分组域短信实现方法， 其包括：
移动管理实体收到用户设备发送的包含只为短信服务 SMS-only指示的 请求消息后， 向归属用户服务器查询所述用户设备的签约信息， 接收所述归 属用户服务器返回的所述用户设备的签约信息； 以及
当所述移动管理实体支持分组域短信， 以及所述签约信息支持分组域短 信时， 所述移动管理实体向所述用户设备发送接受请求消息， 所述移动管理 实体与所述用户设备之间通过分组域收发短信。
2、 如权利要求 1所述的方法， 所述方法还包括： 所述移动管理实体支持 分组域短信时， 所述移动管理实体还向所述归属用户服务器发送支持分组域 短信的指示；
所述归属用户服务器收到所述支持分组域短信的指示后， 将所述移动管 理实体作为所述用户设备的短信服务节点进行注册。
3、 如权利要求 1所述的方法， 其中， 所述移动管理实体与所述用户设备 之间通过分组域收发短信的步骤包括：
所述移动管理实体与所述用户设备之间通过分组域非接入层信令收发短 信。
4、 如权利要求 1至 3任一所述的方法， 其中， 所述接受请求消息中包含 以下信息： 位置区域标识 LAI; 所述 LAI为非广播 LAI, 且所述 LAI不关联 到拜访位置寄存器 VLR; 临时移动用户标识 TMSI, 所述 TMSI 为保留的 TMSI; 以及国际移动用户标识 IMSI附着的目的是只为短信服务 SMS-only。
5、 如权利要求 1所述的方法， 其中， 所述方法还包括：
当所述移动管理实体支持分组域短信且所述用户设备的签约信息中不支 持分组域短信； 或者， 所述移动管理实体不支持分组域短信且所述用户设备 的签约信息为分组域短信优先 PS-preferred时，所述移动管理实体与所述用户 设备之间通过电路域或 SGs接口收发短信； 和 /或，
当所述移动管理实体不支持分组域短信且所述用户设备的签约信息为只 支持分组域短信 PS-only, 所述移动管理实体拒绝所述用户设备的包含只为短 信服务 SMS-only指示的请求。
6、 如权利要求 1至 3、 5任一所述的方法， 其中， 所述移动管理实体为 所述用户设备的归属地的移动管理实体， 或者， 为所述用户设备的拜访地的 移动管理实体。
7、如权利要求 1至 6所述的方法，其中，所述包含只为短信服务 SMS-only 指示的请求消息为联合附着 /位置更新请求消息。
8、一种分组域短信实现系统，其包括：移动管理实体和归属用户服务器， 其中：
所述移动管理实体设置成， 收到用户设备发送的包含只为短信服务 SMS-only指示的请求消息后， 向所述归属用户服务器查询所述用户设备的签 约信息， 接收所述归属用户服务器返回的所述用户设备的签约信息； 当所述 移动管理实体支持分组域短信， 以及所述签约信息中支持分组域短信时， 所 述移动管理实体向所述用户设备发送接受请求消息， 并与所述用户设备之间 通过分组域收发短信； 以及
所述归属用户服务器设置成， 存储所述用户设备的签约信息； 接收到所 述移动管理实体查询所述用户设备的签约信息的请求后， 返回所述用户设备 的签约信息给所述移动管理实体。
9、 如权利要求 8所述的系统， 其中， 所述移动管理实体还设置成： 当所 述移动管理实体支持分组域短信时， 向所述归属用户服务器发送支持分组域 短信的指示；
所述归属用户服务器还设置成， 收到所述支持分组域短信的指示后， 将 所述移动管理实体作为所述用户设备的短信服务节点进行注册。
10、 如权利要求 8所述的系统， 其中， 所述移动管理实体是设置成： 与 所述用户设备之间通过分组域非接入层信令收发短信。
11、 如权利要求 8至 10任一所述的系统， 其中， 所述接受请求消息中包 含以下信息： 位置区域标识 LAI; 所述 LAI为非广播 LAI, 所述 LAI不关联 到拜访位置寄存器 VLR; 临时移动用户标识 TMSI, 所述 TMSI 为保留的 TMSI; 以及国际移动用户标识 IMSI附着的目的是只为短信服务 SMS-only。
12、 如权利要求 8所述的系统， 其中，
所述移动管理实体还设置成：
当所述移动管理实体支持分组域短信且所述用户设备的签约信息中不支 持分组域短信； 或者， 所述移动管理实体不支持分组域短信且所述用户设备 的签约信息为分组域短信优先 PS-preferred时，与所述用户设备之间通过电路 域或 SGs接口收发短信； 和 /或，
当所述移动管理实体不支持分组域短信且所述用户设备的签约信息为只 支持分组域短信 PS-only, 拒绝所述用户设备的包含只为短信服务 SMS-only 指示的请求。
13、 如权利要求 8至 10、 12任一所述的系统， 其中， 所述移动管理实体 为所述用户设备的归属地的移动管理实体， 或者， 为所述用户设备的拜访地 的移动管理实体。
14、 如权利要求 8 至 13 所述的系统， 其中， 所述包含只为短信服务 SMS-only指示的请求消息为联合附着 /位置更新请求消息。
15、 一种用户设备， 其包括：
注册单元， 其设置成在归属用户服务器注册所述用户设备是否支持分组 域短信的签约信息；
请求单元，其设置成向移动管理实体发送包含只为短信服务 SMS-only指 示的请求消息； 以及 短信收发单元， 其设置成收到移动管理实体发送的接受请求消息后， 与 所述移动管理实体通过分组域收发短信。
16、 如权利要求 15所述的用户设备， 其中， 所述用户设备是设置成： 与 所述移动管理实体之间通过分组域非接入层信令收发短信。
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