WO2011085611A1 - 网络接入方法及装置 - Google Patents

网络接入方法及装置 Download PDF

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Publication number
WO2011085611A1
WO2011085611A1 PCT/CN2010/078807 CN2010078807W WO2011085611A1 WO 2011085611 A1 WO2011085611 A1 WO 2011085611A1 CN 2010078807 W CN2010078807 W CN 2010078807W WO 2011085611 A1 WO2011085611 A1 WO 2011085611A1
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WIPO (PCT)
Prior art keywords
sgsn
reject
reason value
network device
value
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PCT/CN2010/078807
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English (en)
French (fr)
Inventor
张艳平
吴问付
李岩
弗兰克马德曼
Original Assignee
华为技术有限公司
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201080004684.2A priority Critical patent/CN102282876B/zh
Priority to EP10842894.7A priority patent/EP2635055A4/en
Priority to PCT/CN2010/078807 priority patent/WO2011085611A1/zh
Publication of WO2011085611A1 publication Critical patent/WO2011085611A1/zh
Priority to US13/895,804 priority patent/US20130250891A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/18Management of setup rejection or failure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a network access method and apparatus. Background technique
  • the terminal entity/mobile terminal (Terminal Entity/Mobile Terminal, TE/MT) means that the MS can pass the Base Station Subsystem (BSS).
  • BSS Base Station Subsystem
  • a Serving GPRS Supporting Node (SGSN) of multiple operators accesses a Packet Data Network (PDN).
  • PDN Packet Data Network
  • This feature can be called a Multi-Operator Core Network.
  • MOCN Multi-Operator Core Network
  • the BSS When the MS requests access to the network through the BSS, since the BSS cannot know which carrier's SGSN can serve the MS, the BSS will try to send the access request message from the MS to each SGSN one by one. If the SGSN that receives the access request message determines that the MS is inaccessible, returns a reject reason value and an access request reject message including the reject reason value to the BSS; if the SGSN that receives the access request message determines that the MS can Access, the access process of the MS is performed.
  • the BSS receives the reject reason value returned by all the SGSNs and the access request reject message including the reject reason value, select the access request reject message corresponding to the lightest reject cause value, and send the message to the MS to The MS is caused to perform a corresponding operation according to the rejection reason value included in the access request rejection message.
  • Each message that each SGSN interacts with the MS has a Logical Link Control (LAN) parameter, such as a sequence number used by the LLC layer.
  • LAN Logical Link Control
  • each SGSN interacts with the MS with its own LLC parameter, if the MS receives an access request reject message containing the reject reason value, it is not the last selected SGSN of the BSS (with the The access request reject message sent by the last SGSN of the MS, the LLC parameter corresponding to the access request reject message received by the MS may be inconsistent with the LLC parameter of the SGSN, for example, the access request received by the MS.
  • the sequence number used by the LLC layer corresponding to the reject message is smaller than the LLC parameter corresponding to the access request reject message sent by the SGSN, so that the MS discards the access request reject message.
  • the MS re-accesses the network through the BSS request. It is also possible that the above problem occurs, which causes the above MS to always be unable to know the reason for the denied access, thereby increasing the access delay of the network. Summary of the invention
  • the embodiment of the invention provides a network access method and device, so as to avoid the problem that the MS discards the access request rejection message sent by the SGSN, and reduces the access delay of the network.
  • the embodiment of the invention provides a network access method, including:
  • the second SGSN receives the first reject reason value sent by the access network device, where the first reject reason value is sent by the first SGSN to the access network device;
  • the second SGSN obtains its second reject reason value
  • the second SGSN sends a lighter rejection reason value among the first rejection reason value and the second rejection reason value to the access network device.
  • An embodiment of the present invention provides another network access method, including:
  • the access network device sends a first reject reason value to the second SGSN, where the first reject cause value is sent by the first SGSN to the access network device;
  • An embodiment of the present invention provides a network access method, including:
  • the access network device sends the access request message of the MS to the SGSN corresponding to the lightest rejection reason value according to the rejected reason value sent by the SGSN;
  • the access network device receives an access request rejection message returned by the SGSN; the access network device sends the access request rejection message to the MS.
  • the embodiment of the invention provides another network access method, including:
  • the access network device sets the lightest reject reason value corresponding to the LLC parameter to the latest LLC parameter according to the rejected reason value sent by the SGSN.
  • the access network device sends an access request rejection message corresponding to the lightest rejection reason value to the MS.
  • the embodiment of the invention further provides a network access device, including:
  • a receiving module configured to receive a first rejecting cause value sent by the access network device, where the first rejecting cause value is sent by the first SGSN to the access network device;
  • An obtaining module configured to obtain a second reject reason value of the second
  • a sending module configured to send, to the access network device, a lighter rejection reason value of the first rejection reason value and the second rejection reason value.
  • the embodiment of the invention further provides another network access device, including:
  • a sending module configured to send a first rejecting cause value to the second SGSN, where the first rejecting cause value is sent by the first SGSN to the access network device;
  • An obtaining module configured to acquire a lighter rejection reason value of the first reject reason value and the second reject cause value sent by the second SGSN, where the second reject cause value is obtained by the second SGSN The reason for the rejection.
  • the embodiment of the invention further provides another network access device, including:
  • the first sending module is configured to send, according to the rejected reason value sent by the obtained SGSN, the access request message of the MS to the SGSN corresponding to the lightest rejection reason value;
  • a receiving module configured to receive an access request rejection message returned by the SGSN
  • a second sending module configured to send the access request rejection message to the MS.
  • the embodiment of the invention further provides another network access device, including:
  • a setting module configured to set a lightest rejection according to the rejected reason value sent by the acquired SGSN
  • the LLC parameter corresponding to the cause value is the latest LLC parameter.
  • a sending module configured to send, to the MS, an access request reject message corresponding to the lightest reject reason value.
  • the second SGSN receives, by using the second SGSN, the first refusal reason value that the first SGSN rejects the MS access, and the second SGSN rejects the second refusal of the MS access.
  • a reason value so that the second SGSN can send the first reject reason value and the light reject reason value of the second reject cause value to the access network device, so that the access network device obtains the total reject reason value Is the lightest, and then, after obtaining the reject reason value sent by all the SGSNs interconnected with the access network device, can return the last obtained access request rejection message containing the lightest rejection reason value to the MS, avoiding
  • the MS discards the problem of the access request reject message sent by the SGSN, thereby reducing the access delay of the network and improving the user experience; or when the access network device obtains all the SGSNs that are interconnected with the access network device.
  • the access network device After rejecting the cause value, the access network device responds to the lightest rejection cause value according to the rejected reason value of the MS sent by the acquired SGSN.
  • the SGSN sends the access request message of the foregoing MS, so that the value of the rejecting reason finally obtained by the access network device is the lightest, and then returns the last received rejecting cause value to the MS, thereby avoiding the connection sent by the SGSN by the MS.
  • the value of the rejection reason of the MS sent by the SGSN, and the LLC parameter corresponding to the lightest rejection reason value is the latest LLC parameter, so that the access network device can use the latest LLC parameter to return the lightest rejection reason value to the MS, thereby avoiding Since the MS discards the problem of the access request reject message sent by the SGSN, the access delay of the network is reduced.
  • FIG. 1 is a schematic flowchart of a network access method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of another network access method according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic flowchart of a network access processing method according to Embodiment 3 of the present invention
  • FIG. 5 is a schematic flowchart of still another network access method according to Embodiment 5 of the present invention
  • FIG. 6 is still another network connection provided by Embodiment 6 of the present invention
  • FIG. 7 is a schematic flowchart of another network access method according to Embodiment 7 of the present invention
  • FIG. 8 is a schematic structural diagram of a network access apparatus according to Embodiment 8 of the present invention
  • FIG. 9 is a schematic structural diagram of another network access apparatus according to Embodiment 9 of the present invention
  • FIG. 10 is a schematic structural diagram of another network access apparatus according to Embodiment 10 of the present invention
  • FIG. 12 is a schematic structural diagram of a control domain in an SGSN message in another network access method according to Embodiment 7 of the present invention.
  • FIG. 1 is a schematic flowchart of a network access method according to Embodiment 1 of the present invention. As shown in FIG. 1 , the network access method in this embodiment may include the following steps:
  • Step 101 The second SGSN receives a first reject reason value sent by the access network device, where the first reject reason value is sent by the first SGSN to the access network device.
  • the second SGSN may receive the BSSGP uplink data message sent by the access network device,
  • the foregoing BSSGP uplink data message includes a first reject reason value that rejects the MS access after the first SGSN receives the access request message of the MS.
  • the step of acquiring, by the access network device, the first rejection reason value sent by the first SGSN may be included.
  • the first SGSN acquires an International Mobile Subscriber Identification Number (IMSI) of the MS from the MS, or acquires an IMSI of the MS from an SGSN attached to the MS, according to the IMSI of the MS.
  • IMSI International Mobile Subscriber Identification Number
  • the access network device sends the first reject reason value.
  • the first SGSN may further receive a third rejecting cause value sent by the access network device, where the third rejecting cause value is sent by the third SGSN to the access network device. Then, the step of acquiring, by the access network device, the first refusal reason value sent by the first SGSN may be that the first SGSN obtains the IMSI of the MS from the access network device, and obtains the foregoing according to the IMSI of the MS.
  • the contract data or configuration data of the MS (including the configuration data including but not limited to the operator's roaming agreement, etc.), according to the subscription data or configuration data of the MS, obtaining a rejection reason value that rejects the MS accessing itself, the first SGSN direction
  • the access network device sends the first reject reason value, where the first reject reason value is a lighter rejection reason value of the first SGSN's own rejection reason value and the third rejection reason value.
  • the method further includes the step of the foregoing access network device not knowing that the first reject reason value is not CS/PS cooperation.
  • Step 102 The second SGSN acquires a second reject reason value of the second SGSN.
  • the second SGSN After the second SGSN receives the access request message of the IMSI and the MS of the MS sent by the access network device, the second SGSN acquires subscription data or configuration data of the MS according to the IMSI of the MS.
  • the data includes, but is not limited to, an operator's roaming agreement, etc., and obtains a second reject reason value that rejects the MS access according to the subscription data or configuration data of the MS.
  • Step 103 The second SGSN sends, to the access network device, a lighter rejection reason value of the first rejection reason value and the second rejection reason value.
  • the rejection reason value in this embodiment is the rejection reason value of rejecting MS access.
  • the second SGSN may send a BSSGP downlink data message to the access network device, where the BSSGP downlink data message includes the lighter reject reason value (when the access network device needs to send to the next SGSN, access The network device sends the reject reason value parameter to the SGSN and an access request reject message containing the lighter reject reason value (when the access network device needs to send a rejection to the MS, the access network device will include the lighter The access request reject message rejecting the cause value sends an MS).
  • the second SGSN may further include the step of knowing that the first reject reason value is not CS/PS cooperation.
  • the network access method of this embodiment may further include: when the second SGSN learns that the first reject reason value is CS/PS cooperation, the second SGSN sends the second reject reason value to the access network device.
  • the access network device may further send an access request rejection message including the lighter rejection reason value to the MS. Specifically, if the access network device has obtained the reject reason value sent by all the SGSNs interconnected with the access network device, the access network device sends the access that includes the lighter reject reason value to the MS. Request a rejection message.
  • the access network device may include, but is not limited to, a base station subsystem (BSS) or a base station controller (BSC).
  • BSS base station subsystem
  • BSC base station controller
  • the embodiment of the present invention is only described by using a BSS as an example;
  • the incoming request message may also be referred to as a Non-Access Stratum (NAS) request message, and may specifically include, but is not limited to, the following messages: Attach Request message, Routing Area Update Request message
  • the access request rejection message may also be referred to as a Non-Access Stratum (NAS) rejection message, which may include, but is not limited to, the following messages: Attach Reject message, routing area update rejection (Routing)
  • the network access method provided by the embodiment of the present invention is obtained by the access network device each time.
  • the reject cause value is the lightest. If the access network device receives the reject reason value of the MS returned by the SGSN, the access network device may select the last obtained access request reject message and send it to the MS. The MS is caused to perform a corresponding operation according to the reject reason value included in the access request rejection message.
  • the second SGSN rejects by receiving the first SGSN sent by the access network device.
  • the second reject reason value is the lighter reject reason value, so that the access network device obtains the reject cause value is always the lightest, and then obtains the reject cause value sent by all the SGSNs interconnected with the access network device.
  • the access request rejection message containing the lightest rejection reason value can be returned to the MS, which avoids the problem that the MS discards the access request rejection message sent by the SGSN, thereby reducing network access delay and improving The user experience.
  • FIG. 2 is a schematic flowchart of another network access method according to Embodiment 2 of the present invention. As shown in FIG. 2, the network access method in this embodiment may include the following steps:
  • Step 201 The access network device sends a first reject reason value to the second SGSN, where the first reject reason value is sent by the first SGSN to the access network device.
  • the access network device may send a BSSGP uplink data message to the second SGSN, where the BSSGP uplink data message includes a first reject reason value that rejects the MS access after the first SGSN receives the access request message of the MS.
  • the step of acquiring, by the access network device, the first reject reason value sent by the first SGSN may be included.
  • the first SGSN acquires an International Mobile Subscriber Identification Number (IMSI) of the MS from the MS, or acquires an IMSI of the MS from an SGSN attached to the MS, according to the IMSI of the MS.
  • IMSI International Mobile Subscriber Identification Number
  • the access network device sends the first reject reason value.
  • the first SGSN may further receive a third reject reason value sent by the access network device, where the third reject cause value is sent by the third SGSN to the access network device. Then, the step of acquiring, by the access network device, the first refusal reason value sent by the first SGSN may be that the first SGSN obtains the IMSI of the MS from the access network device, and obtains the foregoing according to the IMSI of the MS.
  • the contract data or configuration data of the MS (including the configuration data including but not limited to the operator's roaming agreement, etc.), according to the subscription data or configuration data of the MS, obtaining a rejection reason value that rejects the MS accessing itself, the first SGSN direction
  • the access network device sends the first reject reason value, where the first reject reason value is a lighter rejection reason value of the first SGSN's own rejection reason value and the third rejection reason value.
  • the method further includes the step of the foregoing access network device not knowing that the first reject reason value is not CS/PS cooperation.
  • Step 202 The access network device acquires a lighter rejection reason value of the first reject reason value and the second reject cause value sent by the second SGSN, where the second reject cause value is the self acquired by the second SGSN. Reject the reason value.
  • the access network device may receive the BSSGP downlink data message sent by the second SGSN, where the BSSGP downlink data message includes the lighter reject reason value and the access request reject message that includes the lighter reject cause value.
  • the rejection reason value in this embodiment is the rejection reason value of rejecting MS access.
  • the second SGSN acquires subscription data or configuration data of the MS according to the IMSI of the MS (including configuration data) Including, but not limited to, the operator's roaming agreement, etc., according to the subscription data or configuration data of the foregoing MS, obtaining a second reject reason value that rejects the MS access.
  • the access network device may further send an access request rejection message including the lighter rejection reason value to the MS. Specifically, if the access network device has obtained the reject reason value sent by all the SGSNs interconnected with the access network device, the access network device sends the access that includes the lighter reject reason value to the MS. Request a rejection message.
  • the access network device may include, but is not limited to, a base station subsystem (BSS) or a base station controller (BSC).
  • BSS base station subsystem
  • BSC base station controller
  • the embodiment of the present invention is only described by using a BSS as an example;
  • the incoming request message may also be referred to as a Non-Access Stratum (NAS) request message, and may specifically include, but is not limited to, the following messages: Attach Request message, Routing Area Update Request message
  • the access request rejection message may also be referred to as a Non-Access Stratum (NAS) rejection message, which may include, but is not limited to, the following messages: Attach Reject message, routing area update rejection (Routing) Area Update Reject) message.
  • NAS Non-Access Stratum
  • the value of the rejection reason obtained by the access network device is the lightest, and if the access network device receives the rejection reason value of the MS returned by all the SGSNs, The access network device may select the last obtained access request rejection message and send the message to the MS, so that the MS performs the corresponding operation according to the reject reason value included in the access request rejection message.
  • the first refusal reason value is sent by the access network device to the second SGSN, where the access network device acquires the first refusal reason value sent by the second SGSN and the second PDCCH obtained by the second SGSN. Rejecting the lighter rejection reason value of the cause value, so that the value of the rejection reason obtained by the access network device is always the lightest, and then after obtaining the rejection reason value sent by all the SGSNs interconnected with the access network device.
  • the access request rejection message containing the lightest rejection reason value can be returned to the MS, which avoids the problem that the MS discards the access request rejection message sent by the SGSN, thereby reducing the network access delay and improving the access delay. user experience.
  • FIG. 3 is a schematic flowchart of a method for processing a network access according to Embodiment 3 of the present invention.
  • This embodiment is a specific embodiment of the first embodiment of the present invention and the foregoing embodiment 2 of the present invention.
  • the BSS is used as an example.
  • the BSS is interconnected with the SGSN1 of the carrier 1 and the SGSN2 of the carrier 2.
  • the network access method in this embodiment may include the following steps: Step 301: The MS interacts with the BSS to perform a radio access procedure, and the BSS allocates a radio resource to the MS.
  • Step 302 The MS sends an Attach Request message to the BSS.
  • Step 303 The BSS sends a Base Station Subsystem GPRS Protocol (BSSGP) uplink data (BSSGP UL-UNIDATA) message to the SGSN1, where the BSSGP uplink
  • BSSGP Base Station Subsystem GPRS Protocol
  • the data message includes the foregoing attach request message and a redirection attempt flag, where the redirection attempt identifier may be used to indicate that the BSS supports the MOCN;
  • the BSS needs to save the information of the SGSN1, and the record attachment request message of the MS has been sent to the SGSN1, and the attachment request message is not sent to the SGSN1 in the future.
  • the SGSN1 may obtain the IMSI of the MS from the MS or obtain the IMSI of the MS from the SGSN attached to the MS, and obtain the subscription data or configuration data of the MS according to the obtained IMSI of the MS, and determine that the MS cannot access the MS.
  • the value of the refusal reason may be included in the redirection indication, or may be an independent cell, which is not limited in this embodiment;
  • Step 305 The BSS, according to the obtained redirection indication, learns that the SGSN1 rejects the MS access, and sends a BSSGP uplink data (BSSGP UL-UNIDATA) message to the SGSN2, where the BSSGP uplink data message includes the foregoing attach request message and the redirection attempt identifier (redirection) Attempt flag ), the IMSI of the MS, and the reject cause value returned by the SGSN1, where the redirection attempt identifier may be used to indicate that the BSS supports the MOCN;
  • BSSGP uplink data includes the foregoing attach request message and the redirection attempt identifier (redirection) Attempt flag )
  • the IMSI of the MS and the reject cause value returned by the SGSN1
  • the redirection attempt identifier may be used to indicate that the BSS supports the MOCN;
  • the value of the reason for the rejection may be included in the foregoing redirection attempt identifier, or may be an independent cell, which is not limited in this embodiment; Specifically, the BSS may further identify the rejected reason value returned by the acquired SGSN1, and if the reject reason value identifies that it is not CS/PS coordination, send the reject reason value to the SGSN2; if the rejection If the cause value is identified as CS/PS coordination, the reject cause value is not sent to the SGSN2, and the related process in the prior art is performed, and details are not described herein.
  • Step 306 The SGSN2 obtains the subscription data or the configuration data of the MS according to the obtained IMSI of the MS, and determines that the MS cannot be accessed due to the reason indicated by the rejection reason value, and sends a BSSGP downlink data to the BSS ( a BSSGP DL-UNIDATA message, the BSSGP downlink data message includes an attach reject message, an IMSI of the MS, the attach request message, a redirection indication, and a reject cause value, wherein the reject cause value is SGSN2 from the foregoing
  • the lighter rejection reason value of the reject reason value obtained by the BSS and the own rejection reason value, wherein the above attachment rejection message includes the lighter rejection reason value (lighter refers to the reason value ranked in the standard definition order) generally indicates the reason value that has less influence on the MS selection network. For details, refer to the description of the following standard);
  • the value of the refusal reason may be included in the redirection indication, or may be an independent cell, which is not limited in this embodiment;
  • the value is 15 (No Suitable)
  • the BSSN2 sends the BSSGP downlink data message to the BSS to include the reject cause value 15; if the SGSN2 obtains the reject cause value from the BSS, the value is 12 (Location) Area not allowed), the reason for the reason is 13 (Roaming not allowed in the location area), according to the existing standard, since the rejection reason value 13 is lighter than the rejection reason value 12, then the SGSN2 sends to the BSS.
  • the reject reason value 13 is included in the above BSSGP downlink data message.
  • the SGSN2 may send a Reset message to the MS according to the redirection attempt identifier included in the BSSGP uplink data message, and reset the LLC parameter of the SGSN2 and the MS interaction.
  • the above LLC parameter may include at least one of the following parameters: a LLC counter, a sequence number used by the LLC layer, and an unconfirmed sequence number used by the LLC layer (Unconfirmed sequence number, N (U)), Unconfirmed send state variable (V(U)) used by the LLC layer, and other parameters of the LLC layer.
  • the reset LLC parameter may be filled in a corresponding position in the message (for example, an authentication message) to prevent the MS from discarding the message.
  • the SGSN2 may further identify the reject reason value sent by the BSS, and if the reject cause value identifies that it is not CS/PS coordination, send the foregoing reject reason value and its own reject cause value to the BSS.
  • Step 307 If the BSS has obtained the redirection indication sent by all the SGSNs that are interconnected with the BSS, the BSS sends the last acquired attachment rejection message, that is, the attachment rejection message sent by the SGSN2 through the BSSGP downlink data message, the attachment rejection.
  • the message contains the lightest reason for rejecting the reason;
  • Step 308 The MS reselects the network access according to the lightest rejection reason value.
  • the SGSN2 sends the MS attach request message, the IMSI of the MS, and the SGSN1 sent by the SGSN1.
  • the cause of the cause if the SGSN2 learns that the MS cannot access due to the reason indicated by the value of the reject reason, the SGSN2 can send the value of the reject reason value sent by the SGSN1 obtained from the BSS and the value of its own reject cause value to the BSS.
  • a lighter rejection reason value and an access request rejection message including the lighter rejection reason value so that the rejection reason value obtained by the BSS is always the lightest, and then all the SGSNs connected to the BSS are obtained.
  • the access request rejection message can return the last obtained access request rejection message to the MS, thereby avoiding the problem that the MS discards the access request rejection message sent by the SGSN, thereby reducing the network access delay and improving the user.
  • Experience the access request rejection message can return the last obtained access request rejection message to the MS, thereby avoiding the problem that the MS discards the access request rejection message
  • FIG. 4 is a schematic flowchart of a network access method according to Embodiment 4 of the present invention. As shown in FIG. 4, the network access method in this embodiment may include the following steps:
  • Step 401 The access network device sends the access request message of the MS to the SGSN corresponding to the lightest rejection reason value according to the rejected reason value sent by the SGSN.
  • the access network device may further include the step of obtaining the reject reason value sent by the SGSN.
  • each SGSN acquires an International Mobile Subscriber Identification Number (IMSI) of the MS from the MS or the foregoing access network device, or obtains an IMSI of the MS from an SGSN attached to the MS.
  • IMSI International Mobile Subscriber Identification Number
  • the value is sent to the access network device as described above.
  • Step 402 The access network device receives the access request rejection message returned by the SGSN.
  • Step 403 The access network device sends the access request rejection message to the MS.
  • the rejection reason value in this embodiment is the rejection reason value of rejecting the MS access.
  • the access network device may include, but is not limited to, a Base Station Subsystem (BSS) or a Base Station Controller (BSC).
  • BSS Base Station Subsystem
  • BSC Base Station Controller
  • the embodiment of the present invention is only described by using a BSS as an example;
  • the incoming request message may also be referred to as a Non Access Stratum (NAS) request message, and may specifically include but not limited to the following Message: Attach Request message, Routing Area Update Request message;
  • the access request reject message may also be referred to as a Non Access Stratum (NAS) reject message, specifically This includes but is not limited to the following messages: Attach Reject message, Routing Area Update Reject message.
  • the access network device after the access network device obtains the reject reason value of the MS sent by all the SGSNs interconnected with the access network device, it again corresponds to the lightest reject cause value.
  • the SGSN resends the access request message of the MS, so that the access network device finally obtains the reject reason value that is the lightest, and the access network device can select the last obtained access request reject message and send the message to the MS. So that the MS performs a corresponding operation according to the reject reason value included in the access request rejection message.
  • the access network device after the access network device obtains the reject reason value sent by all the SGSNs connected to the access network device, the access network device is the lightest according to the rejected reason value of the MS sent by the acquired SGSN.
  • the SGSN corresponding to the reject reason value sends the access request message of the MS, so that the value of the reject reason finally obtained by the access network device is the lightest, and then returns the last obtained reject cause value to the MS, thereby avoiding the MS
  • the problem of the access request rejection message sent by the SGSN is discarded, thereby reducing the access delay of the network and improving the user experience.
  • FIG. 5 is a schematic flowchart of a network access method according to Embodiment 5 of the present invention.
  • This embodiment is a specific embodiment of the previous embodiment.
  • the access network device uses BSS as an example, and the BSS respectively Interconnected with SGSN1 of Carrier 1 and SGSN2 of Carrier 2.
  • the network access method in this embodiment may include the following steps:
  • Step 501 The MS interacts with the BSS to perform a wireless access process, and the BSS allocates a wireless resource to the MS.
  • Step 502 The MS sends an Attach Request message to the BSS.
  • Step 503 The BSS sends the base station subsystem GPRS protocol to the SGSN1 (Base Station)
  • BSSGP Subsystem GPRS Protocol (BSSGP) uplink data (BSSGP UL-UNIDATA)
  • BSSGP Subsystem GPRS Protocol
  • BSSGP UL-UNIDATA The message that the BSSGP uplink data message includes the foregoing attach request message and a redirection attempt flag, and the foregoing redirection attempt identifier may be used to indicate that the BSS supports the MOCN;
  • the BSS needs to save the information of the SGSN1, and the record attachment request message of the MS has been sent to the SGSN1, and the attachment request message is not sent to the SGSN1 in the future.
  • the SGSN1 may obtain an International Mobile Subscriber Identification Number (IMSI) of the MS from the MS or obtain an IMSI of the MS from the SGSN attached to the MS, and acquire the MS according to the obtained IMSI of the MS.
  • the subscription data or the configuration data determining that the MS is not accessible, transmitting a BSSGP downlink data (BSSGP DL-UNIDATA) message to the BSS, where the BSSGP downlink data message includes an attach reject message, an IMSI of the MS, and the attach request message. And a redirection indication and a reject cause value, where the foregoing reject rejection message also includes the reject reason value;
  • IMSI International Mobile Subscriber Identification Number
  • the value of the refusal reason may be included in the redirection indication, or may be an independent cell, which is not limited in this embodiment;
  • Step 505 The BSS, according to the obtained redirection indication, learns that the SGSN1 rejects the MS access, saves the obtained reject reason value, and sends a BSSGP UL-UNIDATA message to the SGSN2, where the BSSGP uplink data message includes the attach request. a message, a redirection attempt flag, and an IMSI of the foregoing MS, where the redirection attempt identifier may be used to indicate that the BSS supports the MOCN;
  • Step 506 The SGSN2 obtains the subscription data or the configuration data of the MS according to the acquired IMSI of the MS, and determines that the MS is not accessible, and sends a BSSGP downlink data (BSSGP DL-UNIDATA) message to the BSS, where the BSSGP downlink data message is sent.
  • BSSGP DL-UNIDATA BSSGP downlink data
  • the disclosure includes an attach rejection message, an IMSI of the foregoing MS, the foregoing attach request message, a redirection indication, and a reject cause value, where the reject reject message also includes the reject reason value; the BSS can save the location The attachment rejection message.
  • the value of the reason for the rejection may be included in the foregoing redirection indication, or may be an independent cell, which is not limited in this embodiment;
  • the SGSN2 may send a Reset message to the MS according to the redirection attempt identifier included in the BSSGP uplink data message, and reset the LLC parameter of the SGSN2 and the MS interaction.
  • the above LLC parameter may include at least one of the following parameters: a LLC counter, a sequence number used by the LLC layer, and an unconfirmed sequence number used by the LLC layer (Unconfirmed sequence number, N (U)), Unconfirmed send state variable (V(U)) used by the LLC layer, and other parameters of the LLC layer.
  • the reset LLC parameter may be filled in a corresponding position in the message (for example, an authentication message) to prevent the MS from discarding the message.
  • Step 507 The BSSGP uplink data (BSSGP UL-UNIDATA) message is sent to the SGSN corresponding to the lightest rejection reason value, because the BSS has obtained the redirection indication sent by all the SGSNs interconnected with the BSS, in the BSSGP uplink data message.
  • the foregoing attach request message and a redirection attempt flag are included, where the redirection attempt identifier is used to indicate that the BSS supports the MOCN;
  • the BSS has obtained the redirection indication sent by all the SGSNs that are interconnected with the BSS. There is no other SGSN that can be redirected.
  • the BSS compares the obtained rejection reason values (including all the previously rejected deny reason values).
  • the SGSN corresponding to the lightest rejection reason value is selected, and the access request message of the MS is sent to the SGSN corresponding to the lightest rejection reason value; wherein the default reason specified by the existing standard is from light to heavy:
  • the SGSN1 sends a Rejection Reason value of 15 (No Suitable Cells in Location Area)
  • the SGSN2 sends a Denied Access Cause value of 11 (PLMN not allowed).
  • PLMN Denied Access Cause value
  • the reason value is rejected. If the reject reason value is lighter, the SGSN1 sends the attach request message of the above MS; if the SGSN1 sends the reject access cause value of 12 (Location Area not allowed), the SGSN2 sends the reject access cause value of 13 (Roaming not allowed) In the location area), according to the existing standard, since the reject cause value 13 is lighter than the reject cause value 12, the attach request message of the MS is transmitted to the SGSN2.
  • a detailed description of the subsequent process can be made by taking the first assumption as an example.
  • Step 508 The SGSN1 obtains the subscription data or configuration data of the MS according to the obtained IMSI of the MS, and determines that the MS is not accessible, and sends a BSSGP downlink data (BSSGP DL-UNIDATA) message to the BSS, where the BSSGP downlink data message is sent. And including an attachment rejection message, an IMSI of the foregoing MS, the foregoing attach request message, a redirection indication, and a reject cause value, where the reject rejection message also includes the reject reason value;
  • BSSGP DL-UNIDATA BSSGP downlink data
  • the value of the refusal reason may be included in the redirection indication, or may be an independent cell, which is not limited in this embodiment;
  • the SGSN1 may send a Reset message to the MS to reset the LLC parameter of the SGSN1 interacting with the MS.
  • the reset LLC parameter may be filled in a corresponding position in the message (for example, an authentication message) to prevent the MS from discarding the message.
  • Step 509 The BSS sends the acquired attachment rejection message sent by the SGSN1 to the MS, where the attachment rejection message includes the lightest rejection reason value.
  • Step 510 The MS reselects the network access according to the lightest rejection reason value.
  • the BSS may further determine whether the SGSN corresponding to the lightest rejection reason value is the last SGSN that interacts with the MS, and if yes, directly perform step 509 and step Step 510, otherwise, step 507, step 508, step 509, and step 510 may be performed.
  • the BSS rejects the lightest rejection value according to the MS's rejection reason value sent by all the SGSNs connected to the BSS.
  • the SGSN corresponding to the cause value sends the attach request message of the MS, so that the reject reason value finally obtained by the BSS is the lightest, and then returns the last obtained reject cause value to the MS, thereby avoiding the MS spoofing the SGSN.
  • the request to reject the message thereby reducing the network access delay and improving the user experience.
  • FIG. 6 is a schematic flowchart of another network access method according to Embodiment 6 of the present invention. As shown in FIG. 6, the network access method in this embodiment may include the following steps:
  • Step 601 The access network device sets the LLC parameter corresponding to the lightest rejection reason value to the latest LLC parameter according to the rejected reason value sent by the SGSN.
  • the step of obtaining the reject reason value sent by the SGSN may also be included in the access network device.
  • each of the MS or the SGSN may be obtained from the access network equipment on the international mobile subscriber identity of the MS 1 J another code (International Mobile Subscriber Identification Number, referred to as the IMSI), or may be attached from the MS before the MS SGSN acquires
  • the IMSI obtains the subscription data or the configuration data of the MS (including the configuration data including but not limited to the operator's roaming agreement, etc.) according to the IMSI of the MS, and obtains the rejection of rejecting the MS access according to the subscription data or configuration data of the MS.
  • the cause value is sent to the access network device for the foregoing reject reason value.
  • Step 602 The access network device sends an access request rejection message corresponding to the lightest rejection reason value to the MS.
  • the rejection reason value in this embodiment is the rejection reason value of rejecting the MS access.
  • the access network device may include, but is not limited to, a Base Station Subsystem (BSS) or a Base Station Controller (BSC).
  • BSS Base Station Subsystem
  • BSC Base Station Controller
  • the embodiment of the present invention is only described by using a BSS as an example;
  • the incoming request message may also be referred to as a Non Access Stratum (NAS) request message, and may specifically include, but is not limited to, the following messages: Attach Request message, Routing Area Update Request (Routing Area) The Update Request message;
  • the access request rejection message may also be referred to as a Non Access Stratum (NAS) rejection message, which may include, but is not limited to, the following messages: Attach Reject message, routing area The Routing Area Update Reject message.
  • NAS Non Access Stratum
  • the LLC parameter corresponding to the lightest reject cause value is selected.
  • the access network device may select an access request reject message corresponding to the lightest reject cause value, and send the message to the MS, so that the MS rejects the message according to the access request.
  • the included reject reason value performs the corresponding action.
  • the access network device after the access network device obtains the reject reason value sent by all the SGSNs connected to the access network device, the access network device sets the lightest value according to the rejected reason value of the MS sent by the acquired SGSN.
  • the LLC parameter corresponding to the rejection reason value is the latest LLC parameter, which enables the access network device to return the lightest rejection reason value to the MS by using the latest LLC parameter, and avoids the access request rejection message sent by the SGSN by the MS drop. The problem, thereby reducing the network access delay and improving the user experience.
  • FIG. 7 is a schematic flowchart of another network access method according to Embodiment 7 of the present invention.
  • This embodiment is a specific embodiment of the previous embodiment.
  • the access network device uses BSS as an example, and the BSS respectively Interconnected with SGSN1 of Carrier 1 and SGSN2 of Carrier 2.
  • the network access method in this embodiment may include the following steps:
  • Step 701 The MS interacts with the BSS to perform a radio access procedure, and the BSS allocates a radio resource to the MS.
  • Step 702 The MS sends an Attach Request message to the BSS.
  • Step 703 The BSS sends a Base Station Subsystem GPRS Protocol (BSSGP) uplink data (BSSGP UL-UNIDATA) message to the SGSN1, where the BSSGP uplink
  • BSSGP Base Station Subsystem GPRS Protocol
  • the data message includes the above attach request message and a redirect attempt flag. Redirection attempt flag, the above redirection attempt flag may be used to indicate that the BSS supports the MOCN;
  • the BSS needs to save the information of the SGSN1, and the record attachment request message of the MS has been sent to the SGSN1, and the attachment request message is not sent to the SGSN1 in the future.
  • Step 704 The SGSN1 may obtain the IMSI of the MS from the MS or attach it from the MS.
  • the first SGSN may also obtain the IMSI of the MS from the SGSN to which the MS is attached, and obtain the subscription data or configuration data of the MS according to the obtained IMSI of the MS, and determine that the MS cannot be accessed.
  • the above-mentioned attachment rejection message also includes the above-mentioned rejection reason value; the BSS can save the attachment rejection message.
  • the value of the refusal reason may be included in the redirection indication, or may be an independent cell, which is not limited in this embodiment;
  • Step 705 The BSS learns that the SGSN1 rejects the MS access according to the obtained redirection indication, saves the obtained reject reason value, and sends a BSSGP UL-UNIDATA message to the SGSN2, where the BSSGP uplink data message includes the foregoing attach request. a message, a redirection attempt flag, and an IMSI of the foregoing MS, where the redirection attempt identifier may be used to indicate that the BSS supports the MOCN;
  • Step 706 The SGSN2 obtains the subscription data or the configuration data of the MS according to the obtained IMSI of the MS, and determines that the MS is not accessible, and sends a BSSGP downlink data (BSSGP DL-UNIDATA) message to the BSS, where the BSSGP downlink data message is sent.
  • BSSGP DL-UNIDATA BSSGP downlink data
  • the disclosure includes an attach rejection message, an IMSI of the foregoing MS, the foregoing attach request message, a redirection indication, and a reject cause value, where the reject reject message also includes the reject reason value; the BSS can save the location The attachment rejection message.
  • the foregoing reject reason value may be included in the foregoing redirect indication, or may also be one Independent cells, this embodiment does not limit this;
  • the SGSN2 may send a Reset message to the MS according to the redirection attempt identifier included in the BSSGP uplink data message, and reset the LLC parameter of the SGSN2 and the MS interaction.
  • the above LLC parameter may include at least one of the following parameters: a LLC counter, a sequence number used by the LLC layer, and an unconfirmed sequence number used by the LLC layer (Unconfirmed sequence number, N (U)), Unconfirmed send state variable (V(U)) used by the LLC layer, other control domain parameters of the LLC layer, or variables: Receive Sequence Number (N(R)).
  • the reset LLC parameter may be filled in a corresponding position in the message (for example, an authentication message) to prevent the MS from discarding the message.
  • Step 707 The BSS has obtained the redirection indication sent by all the SGSNs that are interconnected with the BSS, and sets the LLC parameter corresponding to the lightest rejection reason value to the latest LLC parameter, and sends the lightest rejection reason value corresponding to the MS to the MS. Attachment rejection message, the above attachment rejection message contains the lightest rejection reason value;
  • the BSS has obtained the redirection indication sent by all the SGSNs interconnected with the BSS, and there is no other SGSN that can be redirected.
  • the BSS reads (acquires) the LLC parameter corresponding to the rejection reason value sent by the last SGSN (ie, the latest LLC parameter), and the BSS compares the obtained rejection reason value (including all previously rejected reason values), and sets the lightest
  • the LLC parameter corresponding to the cause value is the latest LLC parameter described above. Specifically, the BSS reads the N(U) value (ie, the latest N(U) value) included in the last SGSN sending message, and fills the N(U) value in the N in the SGSN sending message corresponding to the lightest cause value.
  • the original N(U) value in the message sent by the SGSN is replaced, that is, the N(U) value corresponding to the lightest cause value is set to the latest N(U) value.
  • the BSS directly sends an access request rejection message corresponding to the lightest rejection reason value to the MS.
  • the BSS can read or fill in the LLC parameters with reference to the fields in FIG. 12, where the details are as follows: A Acknowledgement request bit acknowledges the request bit;
  • N(R) Transmitter receive sequence number: The sender receives the sequence number
  • N(S) Transmitter send sequence number The sender sends the serial number
  • the SGSN2 sends a rejection reason value of 11 (PLMN not allowed), according to the existing standard, because the rejection reason value 15 is greater than the rejection reason value. 11 light, then the BSS reads the LLC parameter included in the SGSN2 sending message, and replaces the LLC parameter included in the SGSN1 sending message, and the specific BSS reads the N(U) value included in the SGSN2 sending message, and replaces the SGSN1 sending message to include The N(U) value. That is, setting the N(U) value in the SGSN1 message to the SGSN2 message The N(U) value in .
  • the SGSN1 sends a reject access cause value of 12 (Location Area not allowed)
  • the SGSN2 sends the access reason value of 13 (Roaming not allowed in the location area)
  • the rejection reason value 13 is lighter than the rejection reason value 12
  • the attachment rejection message of the SGSN2 is directly transmitted to the MS.
  • Step 708 The MS reselects the network access according to the lightest rejection reason value.
  • the BSS sets the lightest rejection by the BSS according to the rejected reason value of the MS sent by all the SGSNs connected to the BSS.
  • the LLC parameter corresponding to the reason value is the latest LLC parameter, which enables the BSS to return the lightest rejection reason value to the MS by using the latest LLC parameter, thereby avoiding the problem that the MS discards the access request rejection message sent by the SGSN, thereby reducing the problem.
  • the access delay of the network improves the user experience.
  • FIG. 8 is a schematic structural diagram of a network access apparatus according to Embodiment 8 of the present invention.
  • the network access apparatus in this embodiment may include a receiving module 81, an obtaining module 82, and a sending module 83.
  • the receiving module 81 receives the first rejecting cause value of the first SGSN denied by the access network device, and the first rejecting cause value is sent by the first SGSN to the access network device, and the obtaining module 82 obtains the self.
  • the second reject reason value, the sending module 83 sends the lighter reject reason value of the first reject reason value and the second reject reason value to the access network device.
  • the function of the second SGSN in the first embodiment of the present invention and the SGSN2 in the third embodiment of the present invention Both can be implemented by the network access device provided in this embodiment.
  • the receiving module 81 in this embodiment may be specifically configured to receive a BSSGP uplink data message sent by the access network device, where the BSSGP uplink data message includes a first reject reason value that the first SGSN rejects the MS access.
  • the sending module 83 in this embodiment may be configured to send a BSSGP downlink data message to the access network device, where the BSSGP downlink data message includes the lighter reject reason value and the lighter reject cause value. Access request rejection message.
  • the sending module 83 is specifically configured to learn that the first reject reason value is not CS/PS cooperation, and send the first reject reason value and the second reject cause value to the access network device. value.
  • the sending module 83 is further configured to learn that the first reject reason value is CS/PS cooperation, and send the second reject reason value to the access network device.
  • the receiving module receives the first rejecting cause value of the first SGSN denied by the access network device, and the obtaining module obtains the second rejecting reason value of the second SGSN rejecting the access of the MS, thereby
  • the sending module is configured to send the first reject reason value and the light reject reason value in the second reject reason value to the access network device, so that the access network device obtains the reject cause value is always the lightest. Then, after obtaining the reject reason value sent by all the SGSNs interconnected with the access network device, the last obtained access request reject message containing the lightest reject cause value can be returned to the MS, thereby avoiding the SGSN being discarded due to the MS.
  • the problem of the received access request reject message thereby reducing the access delay of the network and improving the user experience.
  • FIG. 9 is a schematic structural diagram of another network access apparatus according to Embodiment 9 of the present invention.
  • the network access apparatus of this embodiment may include a sending module 91 and an obtaining module 92.
  • the sending module 91 sends, to the second SGSN, a first rejecting cause value that the first SGSN rejects the MS access, where the first rejecting cause value is sent by the first SGSN to the access network device, and the obtaining module 92 obtains the second And the second reject reason value of the second SGSN obtained by the second SGSN to reject the reject reason value of the MS access, where the SGSN sends the first reject reason value and the second reject reason value.
  • the functions of the access network device in the second embodiment of the present invention and the BSS in the third embodiment of the present invention can be implemented by the network access device provided in this embodiment.
  • the sending module 91 in this embodiment may be specifically configured to send a BSSGP uplink data message to the second SGSN, where the BSSGP uplink data message includes a first reject reason value that the first SGSN rejects the MS access.
  • the sending module 91 is specifically configured to learn that the first reject reason value is not CS/PS cooperation, and send a first reject reason value that the first SGSN rejects the MS access to the second SGSN.
  • the obtaining module 92 in this embodiment may be specifically configured to receive the BSSGP downlink data message sent by the second SGSN, where the BSSGP downlink data message includes the lighter rejection reason value and the lighter rejection reason value. Access request rejection message. The obtaining module 92 can also be configured to send an access request rejection message including the lighter rejection reason value to the MS.
  • the sending module sends the first refusal reason value of the first SGSN to the second SGSN to reject the MS access
  • the acquiring module acquires the first refusal reason value sent by the second SGSN and the second SGSN acquired by the second SGSN.
  • the second SGSN rejects the lighter reject reason value of the second reject cause value of the MS access, so that the access network device obtains the reject cause value is always the lightest, and then obtains the access network device
  • the last access request rejection message containing the lightest reject reason value can be returned to the MS, which avoids the problem that the MS discards the access request reject message sent by the SGSN. Thereby reducing the access delay of the network and improving the user experience.
  • FIG. 10 is a schematic structural diagram of still another network access apparatus according to Embodiment 10 of the present invention.
  • the network access apparatus in this embodiment may include a first sending module 1001, a receiving module 1002, and a second sending. Module 1003.
  • the first sending module 1001 sends an access request message of the MS to the SGSN corresponding to the lightest reject reason value according to the received rejecting cause value sent by the SGSN, and the receiving module 1002 receives the access request reject message returned by the SGSN.
  • the second sending module 1003 sends the access request rejection message to the MS.
  • the functions of the access network device in the fourth embodiment of the present invention and the BSS in the fifth embodiment of the present invention can be implemented by the network access device provided in this embodiment.
  • the first sending module is the lightest according to the rejected reason value of the MS sent by the acquired SGSN.
  • the SGSN corresponding to the reject reason value sends the access request message of the foregoing MS, so that the rejecting cause value finally obtained by the receiving module is the lightest, and then the second sending module returns the last obtained rejecting cause value to the MS, thereby avoiding
  • the MS discards the problem of the access request reject message sent by the SGSN, thereby reducing the access delay of the network and improving the user experience.
  • FIG. 11 is a schematic structural diagram of another network access apparatus according to Embodiment 11 of the present invention.
  • the network access apparatus of this embodiment may include a setting module 1101 and a sending module 1102.
  • the setting module 1101 sets the LLC parameter corresponding to the lightest rejection reason value to the latest LLC parameter according to the obtained rejection reason value sent by the SGSN, and the sending module 1102 sends the access corresponding to the lightest rejection reason value to the MS. Request a rejection message.
  • the functions of the access network device in the sixth embodiment of the present invention and the BSS in the seventh embodiment of the present invention can be implemented by the network access device provided in this embodiment.
  • the setting module 1101 in this embodiment may be configured to obtain the latest LLC parameter sent by the last SGSN, and set the LLC parameter corresponding to the lightest rejection reason value according to the obtained rejection reason value sent by the SGSN.
  • the latest LLC parameters may be obtained from the latest LLC parameter sent by the last SGSN, and set the LLC parameter corresponding to the lightest rejection reason value according to the obtained rejection reason value sent by the SGSN. The latest LLC parameters.
  • the setting module sets the lightest rejection according to the rejected reason value of the MS sent by the acquired SGSN.
  • the LLC parameter corresponding to the reason value is the latest LLC parameter, so that the sending module returns the lightest reject reason value to the MS by using the latest LLC parameter, thereby avoiding the problem that the MS discards the access request reject message sent by the SGSN, thereby Reduce network access delay and improve user experience.
  • the foregoing storage medium includes: a medium that can store the sequence code, such as a ROM, a RAM, a magnetic disk or an optical disk.

Description

网络接入方法及装置 技术领域
本发明实施例涉及通信技术, 特别涉及网络接入方法及装置。 背景技术
在通用分组无线服务( General Packet Radio Service, 简称 GPRS ) 网 络中, 终端实体 /移动终端 (Terminal Entity/Mobile Terminal , 简称 TE/MT ) 即 MS通过基站子系统( Base Station Subsystem, 简称 BSS ) 可以通过多 个运营商的服务 GPRS支持节点 (Serving GPRS Supporting Node, 简称 SGSN )接入分组数据网络( Packet Data Network, 简称 PDN ), 这种特性 可以称为多运营商核心网( Multi-Operator Core Network, 简称 MOCN )。 其 中, 上述 BSS的这种特性则可以称为支持 MOCN。
当 MS通过 BSS请求接入网络时, 由于 BSS无法获知哪个运营商的 SGSN可以为该 MS服务, 因此, BSS会逐个尝试将来自 MS的接入请求消 息分别向各个 SGSN发送。若接收到接入请求消息的 SGSN判断该 MS不能 够接入, 则向 BSS返回拒绝原因值和包含该拒绝原因值的接入请求拒绝消 息; 若接收到接入请求消息的 SGSN判断该 MS能够接入, 则执行该 MS的 接入流程。 如果 BSS接收到了所有的 SGSN返回的拒绝原因值和包含该拒 绝原因值的接入请求拒绝消息, 则选择最轻的 (softest )拒绝原因值对应的 接入请求拒绝消息, 向该 MS发送, 以使该 MS根据该接入请求拒绝消息中 包含的该拒绝原因值执行相应的操作。 其中, 各个 SGSN与 MS交互的每一 条消息都有一个逻辑链路控制 ( Logical Link Control, 简称 LLC )参数, 例 如: LLC层使用的序列号等。
由于每个 SGSN都用各自的 LLC参数与 MS进行交互,如果 MS接收到 的包含拒绝原因值的接入请求拒绝消息不是 BSS 最后选择的 SGSN (与该 MS最后交互的 SGSN )所发送的接入请求拒绝消息, 则上述 MS接收到的 接入请求拒绝消息对应的 LLC参数可能会与该 SGSN的 LLC参数不一致, 例如: 上述 MS接收到的接入请求拒绝消息对应的 LLC层使用的序列号小于 该 SGSN发送的接入请求拒绝消息对应的 LLC参数,导致 MS丟弃上述接入 请求拒绝消息, 经过一段时间之后, MS重新通过 BSS请求接入网络, 还有 可能出现上述问题, 导致了上述 MS始终无法获知被拒绝接入的原因, 从而 增加了网络的接入时延。 发明内容
本发明实施例提供网络接入方法及装置, 用以避免 MS丟弃 SGSN发送 的接入请求拒绝消息的问题, 减少网络的接入时延。
本发明实施例提供了一种网络接入方法, 包括:
第二 SGSN接收接入网设备发送的第一拒绝原因值, 所述第一拒绝原因 值为第一 SGSN发送给所述接入网设备的;
所述第二 SGSN获取自己的第二拒绝原因值;
所述第二 SGSN 向所述接入网设备发送所述第一拒绝原因值和所述第 二拒绝原因值中较轻的拒绝原因值。
本发明实施例提供了另一种网络接入方法, 包括:
接入网设备向第二 SGSN发送第一拒绝原因值, 所述第一拒绝原因值为 第一 SGSN发送给所述接入网设备的;
所述接入网设备获取所述第二 SGSN 发送的所述第一拒绝原因值和第 二拒绝原因值中较轻的拒绝原因值, 所述第二拒绝原因值为所述第二 SGSN 获取的自己的拒绝原因值。
本发明实施例提供了再一种网络接入方法, 包括:
接入网设备根据获取的 SGSN发送的拒绝原因值, 向最轻的拒绝原因值 对应的 SGSN发送所述 MS的接入请求消息; 所述接入网设备接收所述 SGSN返回的接入请求拒绝消息; 所述接入网设备向所述 MS发送所述接入请求拒绝消息。
本发明实施例提供了又一种网络接入方法, 包括:
接入网设备根据获取的 SGSN发送的拒绝原因值, 设置最轻的拒绝原因 值对应的 LLC参数为最新的 LLC参数;
所述接入网设备向 MS发送所述最轻的拒绝原因值对应的接入请求拒绝 消息。
本发明实施例还提供了一种网络接入装置, 包括:
接收模块, 用于接收接入网设备发送的第一拒绝原因值, 所述第一拒绝 原因值为第一 SGSN发送给所述接入网设备的;
获取模块, 用于获取自己的第二拒绝原因值;
发送模块, 用于向所述接入网设备发送所述第一拒绝原因值和所述第二 拒绝原因值中较轻的拒绝原因值。
本发明实施例还提供了另一种网络接入装置, 包括:
发送模块, 用于向第二 SGSN发送第一拒绝原因值, 所述第一拒绝原因 值为第一 SGSN发送给所述接入网设备的;
获取模块, 用于获取所述第二 SGSN发送的所述第一拒绝原因值和第二 拒绝原因值中较轻的拒绝原因值, 所述第二拒绝原因值为所述第二 SGSN获 取的自己的拒绝原因值。
本发明实施例还提供了再一种网络接入装置, 包括:
第一发送模块, 用于根据获取的 SGSN发送的拒绝原因值, 向最轻的拒 绝原因值对应的 SGSN发送所述 MS的接入请求消息;
接收模块, 用于接收所述 SGSN返回的接入请求拒绝消息;
第二发送模块, 用于向所述 MS发送所述接入请求拒绝消息。
本发明实施例还提供了又一种网络接入装置, 包括:
设置模块, 用于根据获取的 SGSN发送的拒绝原因值, 设置最轻的拒绝 原因值对应的 LLC参数为最新的 LLC参数;
发送模块, 用于向 MS发送所述最轻的拒绝原因值对应的接入请求拒绝 消息。
由上述技术方案可知,本发明实施例通过第二 SGSN接收接入网设备发 送的第一 SGSN拒绝 MS接入的第一拒绝原因值,以及获取该第二 SGSN拒 绝上述 MS接入的第二拒绝原因值, 从而使得第二 SGSN能够向上述接入网 设备发送上述第一拒绝原因值和上述第二拒绝原因值中较轻的拒绝原因值, 从而使得接入网设备获取到的拒绝原因值总是最轻的, 继而当获取到与该接 入网设备互联的所有的 SGSN发送的拒绝原因值之后能够向 MS返回最后获 取到的包含最轻的拒绝原因值的接入请求拒绝消息, 避免了由于 MS 丟弃 SGSN发送的接入请求拒绝消息的问题, 从而减少网络的接入时延, 提高了 用户体验; 或者当接入网设备获取到与该接入网设备互联的所有的 SGSN发 送的拒绝原因值之后, 通过接入网设备根据获取的 SGSN发送的 MS的拒绝 原因值, 向最轻的拒绝原因值对应的 SGSN发送上述 MS的接入请求消息, 能够使得接入网设备最后获取到的拒绝原因值是最轻的, 继而向 MS返回最 后获取到的拒绝原因值, 避免了由于 MS丟弃 SGSN发送的接入请求拒绝消 息的问题, 从而减少网络的接入时延; 或者当接入网设备获取到与该接入网 设备互联的所有的 SGSN发送的拒绝原因值之后, 通过接入网设备根据获取 的 SGSN发送的 MS的拒绝原因值,设置最轻的拒绝原因值对应的 LLC参数 为最新的 LLC参数,能够使得接入网设备利用该最新的 LLC参数向 MS返回 最轻的拒绝原因值, 避免了由于 MS丟弃 SGSN发送的接入请求拒绝消息的 问题, 从而减少网络的接入时延。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面 描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例一提供的一种网络接入方法的流程示意图;
图 2为本发明实施例二提供的另一种网络接入方法的流程示意图; 图 3为本发明实施例三提供的一种网络接入的处理方法的流程示意图; 图 4为本发明实施例四提供的再一种网络接入方法的流程示意图; 图 5为本发明实施例五提供的再一种网络接入方法的流程示意图; 图 6为本发明实施例六提供的又一种网络接入方法的流程示意图; 图 7为本发明实施例七提供的又一种网络接入方法的流程示意图; 图 8为本发明实施例八提供的一种网络接入装置的结构示意图;
图 9为本发明实施例九提供的另一种网络接入装置的结构示意图; 图 10为本发明实施例十提供的再一种网络接入装置的结构示意图; 图 11为本发明实施例十一提供的又一种网络接入装置的结构示意图; 图 12为本发明实施例七提供的又一种网络接入方法中 SGSN消息中控制 域格式图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而 不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明实施例一提供的一种网络接入方法的流程示意图, 如图 1所 示, 本实施例的网络接入方法可以包括以下步骤:
步骤 101、 第二 SGSN接收接入网设备发送的第一拒绝原因值, 上述第 一拒绝原因值为第一 SGSN发送给上述接入网设备的;
具体地,第二 SGSN可以接收接入网设备发送的 BSSGP上行数据消息, 上述 BSSGP上行数据消息中包含第一 SGSN接收到 MS的接入请求消息之 后拒绝 MS接入的第一拒绝原因值。
本步骤之前, 还可以包括接入网设备获取第一 SGSN发送的上述第一拒 绝原因值的步骤。 具体地, 第一 SGSN从 MS获取该 MS的国际移动用户识 另' J码 ( International Mobile Subscriber Identification Number, 简称 IMSI ), 或者从 MS之前附着的 SGSN上获取该 MS的 IMSI ,根据上述 MS的 IMSI , 获取上述 MS的签约数据或配置数据(其中配置数据包括但不限于运营商的 漫游协议等), 根据上述 MS的签约数据或配置数据, 获取拒绝上述 MS接入 的第一拒绝原因值, 向上述接入网设备发送上述第一拒绝原因值。
本实施例中,第一 SGSN还可以接收接入网设备发送的第三拒绝原因值, 上述第三拒绝原因值为第三 SGSN发送给上述接入网设备的。那么,相应地, 上述接入网设备获取第一 SGSN发送的上述第一拒绝原因值的步骤具体还可 以为第一 SGSN从接入网设备获取该 MS的 IMSI , 根据上述 MS的 IMSI , 获取上述 MS的签约数据或配置数据(其中配置数据包括但不限于运营商的 漫游协议等), 根据上述 MS的签约数据或配置数据, 获取拒绝上述 MS接入 自己的拒绝原因值, 上述第一 SGSN向上述接入网设备发送上述第一拒绝原 因值, 上述第一拒绝原因值为上述第一 SGSN 自己的拒绝原因值和上述第三 拒绝原因值中较轻的拒绝原因值。
本步骤之前, 还可以进一步包括上述接入网设备获知上述第一拒绝原因 值不为 CS/PS协作的步骤。
步骤 102、 上述第二 SGSN获取自己的第二拒绝原因值;
具体地, 上述第二 SGSN接收上述接入网设备发送的上述 MS的 IMSI 和 MS的接入请求消息之后,该第二 SGSN根据上述 MS的 IMSI ,获取上述 MS 的签约数据或配置数据(其中配置数据包括但不限于运营商的漫游协议 等), 根据上述 MS的签约数据或配置数据, 获取拒绝上述 MS接入的第二拒 绝原因值。 步骤 103、 上述第二 SGSN向上述接入网设备发送上述第一拒绝原因值 和上述第二拒绝原因值中较轻的拒绝原因值。
需要说明的是:本实施例中的拒绝原因值为拒绝 MS接入的拒绝原因值。 具体地, 上述第二 SGSN可以向上述接入网设备发送 BSSGP下行数据 消息, 上述 BSSGP下行数据消息中包含上述较轻的拒绝原因值 (当接入网 设备需要发给下一个 SGSN时,接入网设备将该拒绝原因值参数发给 SGSN ) 和包含上述较轻的拒绝原因值的接入请求拒绝消息 (当接入网设备需要发拒 绝给 MS时, 接入网设备将包含上述较轻的拒绝原因值的接入请求拒绝消息 发送个 MS )。
进一步地, 本步骤之前还可以进一步包括上述第二 SGSN获知上述第一 拒绝原因值不为 CS/PS协作的步骤。
本实施例的网络接入方法还可以包括: 当上述第二 SGSN获知上述第一 拒绝原因值为 CS/PS协作时, 则上述第二 SGSN向上述接入网设备发送上 述第二拒绝原因值。
进一步地, 上述步骤 103之后, 上述接入网设备可以进一步向上述 MS 发送包含上述较轻的拒绝原因值的接入请求拒绝消息。 具体地, 如果上述接 入网设备已经获取到了与上述接入网设备互联的所有的 SGSN发送的拒绝原 因值, 则上述接入网设备向上述 MS发送包含上述较轻的拒绝原因值的接入 请求拒绝消息。
其中的接入网设备可以包括但不限于基站子系统 ( Base Station Subsystem, 简称 BSS )或者基站控制器(Base Station Controller, 简称 BSC ), 本发明实施例仅以 BSS为例进行说明; 其中的接入请求消息还可以 称为非接入层(Non Access Stratum, 简称 NAS )请求消息, 具体可以包括 但不限于以下消息: 附着请求 (Attach Request ) 消息、 路由区更新请求 ( Routing Area Update Request ) 消息; 其中的接入请求拒绝消息还可以称 为非接入层(Non Access Stratum, 简称 NAS )拒绝消息, 具体可以包括但 不限于以下消息: 附着拒绝(Attach Reject )消息、路由区更新拒绝( Routing
Area Update Reject ) 消息。
釆用本发明实施例提供的网络接入方法, 由于接入网设备每次获取到的 拒绝原因值均是最轻的, 如果接入网设备接收到了所有的 SGSN返回的 MS 的拒绝原因值, 则接入网设备可以选择最后获取到的接入请求拒绝消息, 向 上述 MS发送, 以使该 MS根据上述接入请求拒绝消息中包含的拒绝原因值 执行相应的操作。
本实施例中, 第二 SGSN通过接收接入网设备发送的第一 SGSN拒绝
MS接入的第一拒绝原因值, 以及获取该第二 SGSN拒绝上述 MS接入的第 二拒绝原因值, 从而使得第二 SGSN能够向上述接入网设备发送上述第一拒 绝原因值和上述第二拒绝原因值中较轻的拒绝原因值, 从而使得接入网设备 获取到的拒绝原因值总是最轻的, 继而当获取到与该接入网设备互联的所有 的 SGSN发送的拒绝原因值之后能够向 MS返回最后获取到的包含最轻的拒 绝原因值的接入请求拒绝消息, 避免了由于 MS丟弃 SGSN发送的接入请求 拒绝消息的问题, 从而减少网络的接入时延, 提高了用户体验。
图 2为本发明实施例二提供的另一种网络接入方法的流程示意图, 如图 2 所示, 本实施例的网络接入方法可以包括以下步骤:
步骤 201、 接入网设备向第二 SGSN发送第一拒绝原因值, 上述第一拒 绝原因值为第一 SGSN发送给上述接入网设备的;
具体地, 接入网设备可以向第二 SGSN发送 BSSGP上行数据消息, 上 述 BSSGP上行数据消息中包含第一 SGSN接收到 MS的接入请求消息之后 拒绝 MS接入的第一拒绝原因值。
本步骤之前, 还可以包括接入网设备获取第一 SGSN发送的上述第一拒 绝原因值的步骤。 具体地, 第一 SGSN从 MS获取该 MS的国际移动用户识 另' J码 ( International Mobile Subscriber Identification Number, 简称 IMSI ), 或者从 MS之前附着的 SGSN上获取该 MS的 IMSI ,根据上述 MS的 IMSI , 获取上述 MS的签约数据或配置数据(其中配置数据包括但不限于运营商的 漫游协议等), 根据上述 MS的签约数据或配置数据, 获取拒绝上述 MS接入 的第一拒绝原因值, 向上述接入网设备发送上述第一拒绝原因值。 本实施例中,第一 SGSN还可以接收接入网设备发送的第三拒绝原因值, 上述第三拒绝原因值为第三 SGSN发送给上述接入网设备的。那么,相应地, 上述接入网设备获取第一 SGSN发送的上述第一拒绝原因值的步骤具体还可 以为第一 SGSN从接入网设备获取该 MS的 IMSI , 根据上述 MS的 IMSI , 获取上述 MS的签约数据或配置数据 (其中配置数据包括但不限于运营商的 漫游协议等), 根据上述 MS的签约数据或配置数据, 获取拒绝上述 MS接入 自己的拒绝原因值, 上述第一 SGSN向上述接入网设备发送上述第一拒绝原 因值, 上述第一拒绝原因值为上述第一 SGSN 自己的拒绝原因值和上述第三 拒绝原因值中较轻的拒绝原因值。
本步骤之前, 还可以进一步包括上述接入网设备获知上述第一拒绝原因 值不为 CS/PS协作的步骤。
步骤 202、 上述接入网设备获取上述第二 SGSN发送的上述第一拒绝原 因值和第二拒绝原因值中较轻的拒绝原因值, 上述第二拒绝原因值为上述第 二 SGSN获取的自己的拒绝原因值。
具体地, 上述接入网设备可以接收上述第二 SGSN发送的 BSSGP下行 数据消息, 上述 BSSGP下行数据消息中包含上述较轻的拒绝原因值和包含 上述较轻的拒绝原因值的接入请求拒绝消息。
需要说明的是:本实施例中的拒绝原因值为拒绝 MS接入的拒绝原因值。 具体地, 上述接入网设备向上述第二 SGSN发送上述 MS的 IMSI和 MS的 接入请求消息之后,该第二 SGSN根据上述 MS的 IMSI ,获取上述 MS的签 约数据或配置数据(其中配置数据包括但不限于运营商的漫游协议等), 根据 上述 MS的签约数据或配置数据,获取拒绝上述 MS接入的第二拒绝原因值。
进一步地, 上述步骤 202之后, 上述接入网设备可以进一步向上述 MS 发送包含上述较轻的拒绝原因值的接入请求拒绝消息。 具体地, 如果上述接 入网设备已经获取到了与上述接入网设备互联的所有的 SGSN发送的拒绝原 因值, 则上述接入网设备向上述 MS发送包含上述较轻的拒绝原因值的接入 请求拒绝消息。
其中的接入网设备可以包括但不限于基站子系统 ( Base Station Subsystem, 简称 BSS )或者基站控制器(Base Station Controller, 简称 BSC ), 本发明实施例仅以 BSS为例进行说明; 其中的接入请求消息还可以 称为非接入层(Non Access Stratum, 简称 NAS )请求消息, 具体可以包括 但不限于以下消息: 附着请求 (Attach Request ) 消息、 路由区更新请求 ( Routing Area Update Request ) 消息; 其中的接入请求拒绝消息还可以称 为非接入层(Non Access Stratum, 简称 NAS )拒绝消息, 具体可以包括但 不限于以下消息: 附着拒绝(Attach Reject )消息、路由区更新拒绝( Routing Area Update Reject ) 消息。
釆用本发明实施例提供的网络接入方法, 由于接入网设备每次获取到的 拒绝原因值均是最轻的, 如果接入网设备接收到了所有的 SGSN返回的 MS 的拒绝原因值, 则接入网设备可以选择最后获取到的接入请求拒绝消息, 向 上述 MS发送, 以使该 MS根据上述接入请求拒绝消息中包含的拒绝原因值 执行相应的操作。
本实施例中, 通过接入网设备向第二 SGSN发送第一拒绝原因值, 上述 接入网设备获取上述第二 SGSN 发送的上述第一拒绝原因值和上述第二 SGSN获取的自己的第二拒绝原因值中较轻的拒绝原因值, 从而使得接入网 设备获取到的拒绝原因值总是最轻的, 继而当获取到与该接入网设备互联的 所有的 SGSN发送的拒绝原因值之后能够向 MS返回最后获取到的包含最轻 的拒绝原因值的接入请求拒绝消息, 避免了由于 MS丟弃 SGSN发送的接入 请求拒绝消息的问题, 从而减少网络的接入时延, 提高了用户体验。
图 3为本发明实施例三提供的一种网络接入的处理方法的流程示意图, 本 实施例为上述本发明实施例一和上述本发明实施例二的具体实施例, 本实施例 中, 接入网设备以 BSS为例, BSS分别与运营商 1 的 SGSN1、 运营商 2的 SGSN2互联。 如图 3所示, 本实施例的网络接入方法可以包括以下步骤: 步骤 301、 MS与 BSS进行交互, 执行无线接入流程, BSS为 MS分配 无线资源;
步骤 302、 MS向 BSS发送附着请求 ( Attach Request ) 消息; 步骤 303、 BSS向 SGSN1发送基站子系统 GPRS协议( Base Station Subsystem GPRS Protocol,简称 BSSGP )上行数据( BSSGP UL-UNIDATA ) 消息, 上述 BSSGP上行数据消息中包含上述附着请求消息和重定向尝试标 识( redirection attempt flag ), 上述重定向尝试标识可以用于指示 BSS支持 MOCN;
进一步地, BSS还需要保存 SGSN1的信息, 记录 MS的附着请求消息 已经发送给 SGSN1 , 以后不会再向 SGSN1发送上述附着请求消息了。
步骤 304、 SGSN1 可以从 MS获取该 MS的 IMSI或从 MS之前附着的 SGSN上获取 MS的 IMSI ,根据获取的上述 MS的 IMSI ,获取上述 MS的签 约数据或配置数据, 判断上述 MS不能够接入, 则向 BSS发送 BSSGP下行 数据 ( BSSGP DL-UNIDATA )消息, 上述 BSSGP下行数据消息中包含附着 拒绝消息、 上述 MS的 IMSI、 上述附着请求消息、 重定向指示 (redirection indication )和拒绝原因值(reject cause ), 其中, 上述附着拒绝消息中包含 上述拒绝原因值;
其中, 上述拒绝原因值可以包含在上述重定向指示中, 或者还可以为一 个独立的信元, 本实施例对此不进行限制;
步骤 305、 BSS根据获取的重定向指示, 获知 SGSN1拒绝 MS接入, 向 SGSN2发送 BSSGP上行数据( BSSGP UL-UNIDATA )消息,上述 BSSGP 上行数据消息中包含上述附着请求消息、 重定向尝试标识 ( redirection attempt flag )、 上述 MS的 IMSI和 SGSN1返回的拒绝原因值, 上述重定向 尝试标识可以用于指示 BSS支持 MOCN;
其中, 上述拒绝原因值可以包含在上述重定向尝试标识中, 或者还可以 为一个独立的信元, 本实施例对此不进行限制; 具体地, BSS还可以对获取到的 SGSN1返回的拒绝原因值进行识别, 如果该拒绝原因值识别出不是 CS/PS 协作 (CS/PS coordination ), 则向 SGSN2发送该拒绝原因值;如果该拒绝原因值识别出是 CS/PS协作( CS/PS coordination ), 则不向 SGSN2发送该拒绝原因值, 执行现有技术中的相关 流程, 此处不再赘述;
步骤 306、 SGSN2根据获取的上述 MS的 IMSI , 获取上述 MS的签约 数据或配置数据, 判断由于自己的拒绝原因值所标识的原因上述 MS不能够 接入, 贝' J向 BSS发送 BSSGP下行数据 ( BSSGP DL-UNIDATA ) 消息, 上 述 BSSGP下行数据消息中包含附着拒绝消息、 上述 MS的 IMSI、 上述附着 请求消息、 重定向指示和拒绝原因值(reject cause ), 其中, 该拒绝原因值 为 SGSN2从上述 BSS获取的拒绝原因值和自己的拒绝原因值中较轻的拒绝 原因值, 其中, 上述附着拒绝消息中包含上述较轻的拒绝原因值 (较轻是指 按照标准定义顺序排列在前的原因值, 一般表示对 MS选网影响较小的原因 值, 具体可以参考下面标准的描述);
其中, 上述拒绝原因值可以包含在上述重定向指示中, 或者还可以为一 个独立的信元, 本实施例对此不进行限制;
其 中 现有标 准规定 的 拒 绝原 因 值从轻到 重顺序 为 : #15<#14<#13<#12<#11 , 其中, 各拒绝原因值含义如下:
#11 PLMN not allowed ( PLMN不允许接入);
#12 Location Area not allowed (位置区不允许接入 );
#13 Roaming not allowed in the location area (位置区不允许漫游 );
#14 GPRS services not allowed in this PLMN ( PLMN不允许 GPRS业 务);
#15 No Suitable Cells in Location Area (位置区没有合适小区)。
具体地,如果 SGSN2从上述 BSS获取的拒绝原因值为 15( No Suitable
Cells in Location Area ), 自己的拒绝原因值为 11 ( PLMN not allowed ), 根 据现有标准规定, 由于拒绝原因值 15比拒绝原因值 11轻, 那么 SGSN2向 BSS发送的上述 BSSGP下行数据消息中包含拒绝原因值 15; 如果 SGSN2 从上述 BSS获取的拒绝原因值为 12 ( Location Area not allowed ), 自己的 才巨绝原因值为 13 ( Roaming not allowed in the location area ), 才艮据现有标 准规定, 由于拒绝原因值 13比拒绝原因值 12轻,那么 SGSN2向 BSS发送 的上述 BSSGP下行数据消息中包含拒绝原因值 13。
具体地, SGSN2可以根据上述 BSSGP上行数据消息中包含的重定向尝 试标识, 向 MS发送重置( Reset )消息, 重置该 SGSN2与 MS交互的 LLC 参数。 需要说明的是: 上述 LLC参数至少可以包括下列参数中的一项: LLC 计数器(counter ), LLC层使用的序列号( sequence number )、 LLC层使用 的不确认的序列号( Unconfirmed sequence number, N(U) )、 LLC层使用的 不确认发送状态变量(Unconfirmed send state variable, V(U) )、 LLC层其 他参数。 在与上述 MS进行消息交互时, 可以将重置的 LLC参数填写在消息 (例如: 鉴权消息) 中的相应位置, 避免 MS丟弃上述消息。
具体地, SGSN2还可以对 BSS发送的拒绝原因值进行识别, 如果该拒 绝原因值识别出不是 CS/PS协作 ( CS/PS coordination ), 则向 BSS发送上 述拒绝原因值与自己的拒绝原因值中较轻的拒绝原因值; 如果该拒绝原因值 识别出是 CS/PS协作( CS/PS coordination ), 则通过上述 BSSGP下行数据 消息向 BSS发送自己的拒绝原因值。
步骤 307、 如果 BSS已经获取到了与该 BSS互联的所有的 SGSN发送 的重定向指示, BSS向 MS发送最后获取到的附着拒绝消息即 SGSN2通过 上述 BSSGP下行数据消息发送的附着拒绝消息, 该附着拒绝消息中包含最 轻的拒绝原因值;
步骤 308、 MS根据上述最轻的拒绝原因值, 重新选网接入。
本实施例中, 通过 BSS获取到 SGSN1返回的 MS的拒绝原因值之后, 向 SGSN2发送 MS的附着请求消息、 MS的 IMSI和 SGSN1发送的上述拒 绝原因值, 若 SGSN2获知由于自己的拒绝原因值所标识的原因上述 MS不 能够接入, SGSN2能够根据从 BSS获取的 SGSN1发送的拒绝原因值和自 己的拒绝原因值的轻重,向上述 BSS发送较轻的拒绝原因值和包含该较轻的 拒绝原因值的接入请求拒绝消息,从而使得 BSS获取到的拒绝原因值总是最 轻的, 继而当获取到与该 BSS互联的所有的 SGSN发送的接入请求拒绝消 息之后能够向 MS返回最后获取到的接入请求拒绝消息, 避免了由于 MS丟 弃 SGSN发送的接入请求拒绝消息的问题, 从而减少网络的接入时延, 提高 了用户体验。
图 4为本发明实施例四提供的再一种网络接入方法的流程示意图, 如图 4 所示, 本实施例的网络接入方法可以包括以下步骤:
步骤 401、 接入网设备根据获取的 SGSN发送的拒绝原因值, 向最轻的 拒绝原因值对应的 SGSN发送上述 MS的接入请求消息;
本步骤之前, 还可以包括接入网设备获取 SGSN发送的拒绝原因值的步 骤。 具体地, 每个 SGSN从 MS或上述接入网设备获取 MS的国际移动用户 识另' J码 ( International Mobile Subscriber Identification Number, 简称 IMSI ), 或者从 MS之前附着的 SGSN上获取该 MS的 IMSI ,根据上述 MS的 IMSI , 获取上述 MS的签约数据或配置数据(其中配置数据包括但不限于运营商的 漫游协议等), 根据上述 MS的签约数据或配置数据, 获取拒绝上述 MS接入 的拒绝原因值, 向上述接入网设备发送上述拒绝原因值。
步骤 402、 上述接入网设备接收上述 SGSN返回的接入请求拒绝消息; 步骤 403、 上述接入网设备向上述 MS发送上述接入请求拒绝消息。 需要说明的是:本实施例中的拒绝原因值为拒绝 MS接入的拒绝原因值。 其中的接入网设备可以包括但不限于基站子系统( Base Station Subsystem, 简称 BSS )或者基站控制器(Base Station Controller, 简称 BSC ), 本发明 实施例仅以 BSS 为例进行说明; 其中的接入请求消息还可以称为非接入层 ( Non Access Stratum, 简称 NAS )请求消息, 具体可以包括但不限于以下 消息: 附着请求 ( Attach Request ) 消息、 路由区更新请求 ( Routing Area Update Request )消息;其中的接入请求拒绝消息还可以称为非接入层( Non Access Stratum, 简称 NAS )拒绝消息, 具体可以包括但不限于以下消息: 附着拒绝 ( Attach Reject ) 消息、 路由区更新拒绝 ( Routing Area Update Reject ) 消息。
釆用本发明实施例提供的网络接入方法, 由于接入网设备获取到与该接 入网设备互联的所有的 SGSN发送的 MS的拒绝原因值之后, 又再次向最轻 的拒绝原因值对应的 SGSN重新发送上述 MS的接入请求消息, 因此接入网 设备最后获取到的拒绝原因值是最轻的, 则接入网设备可以选择最后获取到 的接入请求拒绝消息, 向上述 MS发送, 以使该 MS根据上述接入请求拒绝 消息中包含的拒绝原因值执行相应的操作。
本实施例中, 当接入网设备获取到与该接入网设备互联的所有的 SGSN 发送的拒绝原因值之后, 通过接入网设备根据获取的 SGSN发送的 MS的拒 绝原因值,向最轻的拒绝原因值对应的 SGSN发送上述 MS的接入请求消息, 能够使得接入网设备最后获取到的拒绝原因值是最轻的, 继而向 MS返回最 后获取到的拒绝原因值, 避免了由于 MS丟弃 SGSN发送的接入请求拒绝消 息的问题, 从而减少网络的接入时延, 提高了用户体验。
图 5为本发明实施例五提供的再一种网络接入方法的流程示意图, 本实施 例为上一实施例的具体实施例, 本实施例中, 接入网设备以 BSS 为例, BSS 分别与运营商 1的 SGSN1、 运营商 2的 SGSN2互联。 如图 5所示, 本实施 例的网络接入方法可以包括以下步骤:
步骤 501、 MS与 BSS进行交互, 执行无线接入流程, BSS为 MS分配 无线资源;
步骤 502、 MS向 BSS发送附着请求 ( Attach Request ) 消息; 步骤 503、 BSS向 SGSN1发送基站子系统 GPRS协议( Base Station
Subsystem GPRS Protocol,简称 BSSGP )上行数据( BSSGP UL-UNIDATA ) 消息, 上述 BSSGP上行数据消息中包含上述附着请求消息和重定向尝试标 识( redirection attempt flag ), 上述重定向尝试标识可以用于指示 BSS支持 MOCN;
进一步地, BSS还需要保存 SGSN1的信息, 记录 MS的附着请求消息 已经发送给 SGSN1 , 以后不会再向 SGSN1发送上述附着请求消息了。
步骤 504、 SGSN1 可以从 MS 获取该 MS 的国际移动用户识别码 ( International Mobile Subscriber Identification Number, 简称 IMSI )或从 MS之前附着的 SGSN上获取 MS的 IMSI ,根据获取的上述 MS的 IMSI ,获 取上述 MS的签约数据或配置数据, 判断上述 MS不能够接入, 则向 BSS发 送 BSSGP下行数据 ( BSSGP DL-UNIDATA )消息, 上述 BSSGP下行数据 消息中包含附着拒绝消息、 上述 MS的 IMSI、 上述附着请求消息、 重定向指 示 ( redirection indication )和拒绝原因值 ( reject cause ), 其中, 上述附着 拒绝消息中也包含上述拒绝原因值;
其中, 上述拒绝原因值可以包含在上述重定向指示中, 或者还可以为一 个独立的信元, 本实施例对此不进行限制;
步骤 505、 BSS根据获取的重定向指示, 获知 SGSN1拒绝 MS接入, 保存获取的上述拒绝原因值, 向 SGSN2发送 BSSGP 上行数据(BSSGP UL-UNIDATA )消息, 上述 BSSGP上行数据消息中包含上述附着请求消息、 重定向尝试标识( redirection attempt flag )和上述 MS的 IMSI , 上述重定向 尝试标识可以用于指示 BSS支持 MOCN;
步骤 506、 SGSN2根据获取的上述 MS的 IMSI , 获取上述 MS的签约 数据或配置数据, 判断上述 MS不能够接入, 则向 BSS发送 BSSGP下行数 据 ( BSSGP DL-UNIDATA )消息, 上述 BSSGP下行数据消息中包含附着拒 绝消息、 上述 MS 的 IMSI、 上述附着请求消息、 重定向指示 (redirection indication )和拒绝原因值(reject cause ), 其中, 上述附着拒绝消息中也包 含上述拒绝原因值; BSS可以保存所述附着拒绝消息。 其中, 上述拒绝原因值可以包含在上述重定向指示中, 或者还可以为一 个独立的信元, 本实施例对此不进行限制;
具体地, SGSN2可以根据上述 BSSGP上行数据消息中包含的重定向尝 试标识, 向 MS发送重置( Reset )消息, 重置该 SGSN2与 MS交互的 LLC 参数。。 需要说明的是: 上述 LLC参数至少可以包括下列参数中的一项: LLC 计数器(counter ), LLC层使用的序列号( sequence number )、 LLC层使用 的不确认的序列号( Unconfirmed sequence number, N(U) )、 LLC层使用的 不确认发送状态变量(Unconfirmed send state variable, V(U) )、 LLC层其 他参数。 在与上述 MS进行消息交互时, 可以将重置的 LLC参数填写在消息 (例如: 鉴权消息) 中的相应位置, 避免 MS丟弃上述消息。
步骤 507、 由于 BSS已经获取到了与该 BSS互联的所有的 SGSN发送 的重定向指示, 向最轻的拒绝原因值对应的 SGSN 发送 BSSGP 上行数据 ( BSSGP UL-UNIDATA )消息, 上述 BSSGP上行数据消息中包含上述附着 请求消息和重定向尝试标识 ( redirection attempt flag ),上述重定向尝试标识 用于指示 BSS支持 MOCN;
本步骤中, BSS已经获取到了与该 BSS互联的所有的 SGSN发送的重 定向指示, 已经不存在可以再重定向的其他 SGSN , BSS比较所获取的拒绝 原因值 (包括之前获取的所有拒绝原因值), 选择最轻的拒绝原因值对应的 SGSN , 向最轻的拒绝原因值对应的 SGSN发送上述 MS的接入请求消息; 其 中 现有标 准规定 的 拒 绝原 因 值从轻到 重顺序 为 :
#15<#14<#13<#12<#11 , 其中, 各拒绝原因值含义如下:
#11 PLMN not allowed ( PLMN不允许接入);
#12 Location Area not allowed (位置区不允许接入 );
#13 Roaming not allowed in the location area (位置区不允许漫游 ); #14 GPRS services not allowed in this PLMN ( PLMN不允许 GPRS业 务); #15 No Suitable Cells in Location Area (位置区没有合适小区)。
具体地,如果 SGSN1发送的拒绝接入原因值为 15( No Suitable Cells in Location Area ), SGSN2发送的拒绝接入原因值为 11 ( PLMN not allowed ), 根据现有标准规定,由于拒绝原因值 15比拒绝原因值 11轻,那么向 SGSN1 发送上述 MS 的附着请求消息; 如果 SGSN1 发送的拒绝接入原因值为 12 ( Location Area not allowed ) , SGSN2 发送的拒绝接入原因值为 13 ( Roaming not allowed in the location area ), 根据现有标准规定, 由于拒绝 原因值 13比拒绝原因值 12轻, 那么向 SGSN2发送上述 MS的附着请求消 息。 可以以第一种假设为例, 进行后续流程的详细描述。
步骤 508、 SGSN1根据获取的上述 MS的 IMSI , 获取上述 MS的签约 数据或配置数据, 判断上述 MS不能够接入, 则向 BSS发送 BSSGP下行数 据 ( BSSGP DL-UNIDATA )消息, 上述 BSSGP下行数据消息中包含附着拒 绝消息、 上述 MS 的 IMSI、 上述附着请求消息、 重定向指示 (redirection indication )和拒绝原因值(reject cause ), 其中, 上述附着拒绝消息中也包 含上述拒绝原因值;
其中, 上述拒绝原因值可以包含在上述重定向指示中, 或者还可以为一 个独立的信元, 本实施例对此不进行限制;
根据上述 BSSGP上行数据消息中包含的重定向尝试标识, SGSN1可以 向 MS发送重置( Reset ) 消息, 重置该 SGSN1与 MS交互的 LLC参数。 在与上述 MS进行消息交互时, 可以将重置的 LLC参数填写在消息 (例如: 鉴权消息) 中的相应位置, 避免 MS丟弃上述消息。
步骤 509、 BSS向 MS发送获取到的上述 SGSN1所发送的上述附着拒 绝消息, 该附着拒绝消息中包含最轻的拒绝原因值;
步骤 510、 MS根据上述最轻的拒绝原因值, 重新选网接入。
可选地, BSS还可以进一步判断上述最轻的拒绝原因值对应的 SGSN是 否为最后一个与 MS交互的 SGSN , 如果是, 则可以直接执行步骤 509和步 骤 510, 否则, 则可以执行步骤 507、 步骤 508、 步骤 509和步骤 510。 本实施例中, 当 BSS获取到与该 BSS互联的所有的 SGSN发送的拒绝 原因值之后, 通过 BSS根据获取的与上述 BSS互联的所有的 SGSN发送的 MS的拒绝原因值, 向最轻的拒绝原因值对应的 SGSN发送上述 MS的附着 请求消息, 能够使得 BSS最后获取到的拒绝原因值是最轻的, 继而向 MS返 回最后获取到的拒绝原因值, 避免了由于 MS丟弃 SGSN发送的接入请求拒 绝消息的问题, 从而减少网络的接入时延, 提高了用户体验。
图 6为本发明实施例六提供的又一种网络接入方法的流程示意图, 如图 6 所示, 本实施例的网络接入方法可以包括以下步骤:
步骤 601、 接入网设备根据获取的 SGSN发送的拒绝原因值, 设置最轻 的拒绝原因值对应的 LLC参数为最新的 LLC参数;
本步骤之前, 还可以包括接入网设备获取 SGSN发送的拒绝原因值的步 骤。 具体地, 每个 SGSN可以从 MS或上述接入网设备获取 MS的国际移动 用户识另1 J码 ( International Mobile Subscriber Identification Number, 简称 IMSI ), 或者还可以从 MS之前附着的 SGSN上获取 MS的 IMSI , 根据上述 MS的 IMSI , 获取上述 MS的签约数据或配置数据(其中配置数据包括但不 限于运营商的漫游协议等)根据上述 MS的签约数据或配置数据, 获取拒绝 上述 MS接入的拒绝原因值, 向上述接入网设备发送上述拒绝原因值。
步骤 602、 上述接入网设备向 MS发送上述最轻的拒绝原因值对应的接 入请求拒绝消息。
需要说明的是:本实施例中的拒绝原因值为拒绝 MS接入的拒绝原因值。 其中的接入网设备可以包括但不限于基站子系统( Base Station Subsystem, 简称 BSS )或者基站控制器(Base Station Controller, 简称 BSC ), 本发明 实施例仅以 BSS 为例进行说明; 其中的接入请求消息还可以称为非接入层 ( Non Access Stratum, 简称 NAS )请求消息, 具体可以包括但不限于以下 消息: 附着请求 ( Attach Request ) 消息、 路由区更新请求 ( Routing Area Update Request )消息;其中的接入请求拒绝消息还可以称为非接入层( Non Access Stratum, 简称 NAS )拒绝消息, 具体可以包括但不限于以下消息: 附着拒绝 ( Attach Reject ) 消息、 路由区更新拒绝 ( Routing Area Update Reject ) 消息。
釆用本发明实施例提供的网络接入方法, 由于接入网设备获取到与该接 入网设备互联的所有的 SGSN发送的 MS的拒绝原因值之后, 将最轻拒绝原 因值对应的 LLC参数设置为最后一个拒绝原因值对应的 LLC参数,则接入网 设备可以选择最轻的拒绝原因值对应的接入请求拒绝消息,向上述 MS发送, 以使该 MS 根据上述接入请求拒绝消息中包含的拒绝原因值执行相应的操 作。
本实施例中, 当接入网设备获取到与该接入网设备互联的所有的 SGSN 发送的拒绝原因值之后, 通过接入网设备根据获取的 SGSN发送的 MS的拒 绝原因值,设置最轻的拒绝原因值对应的 LLC参数为最新的 LLC参数, 能够 使得接入网设备利用该最新的 LLC参数向 MS返回最轻的拒绝原因值, 避免 了由于 MS丟弃 SGSN发送的接入请求拒绝消息的问题, 从而减少网络的接 入时延, 提高了用户体验。
图 7为本发明实施例七提供的又一种网络接入方法的流程示意图, 本实施 例为上一实施例的具体实施例, 本实施例中, 接入网设备以 BSS 为例, BSS 分别与运营商 1的 SGSN1、 运营商 2的 SGSN2互联。 如图 7所示, 本实施 例的网络接入方法可以包括以下步骤:
步骤 701、 MS与 BSS进行交互, 执行无线接入流程, BSS为 MS分配 无线资源;
步骤 702、 MS向 BSS发送附着请求 ( Attach Request ) 消息; 步骤 703、 BSS向 SGSN1发送基站子系统 GPRS协议 ( Base Station Subsystem GPRS Protocol,简称 BSSGP )上行数据( BSSGP UL-UNIDATA ) 消息, 上述 BSSGP上行数据消息中包含上述附着请求消息和重定向尝试标 识( redirection attempt flag ), 上述重定向尝试标识可以用于指示 BSS支持 MOCN;
进一步地, BSS还需要保存 SGSN1的信息, 记录 MS的附着请求消息 已经发送给 SGSN1 , 以后不会再向 SGSN1发送上述附着请求消息了。
步骤 704、 SGSN1 可以从 MS获取该 MS的 IMSI或从 MS之前附着的
SGSN上获取 MS的 IMSI , 第一 SGSN还可以从 MS之前附着的 SGSN上 获取 MS的 IMSI ,根据获取的上述 MS的 IMSI , 获取上述 MS的签约数据或 配置数据, 判断上述 MS 不能够接入, 则向 BSS 发送 BSSGP 下行数据 ( BSSGP DL-UNIDATA )消息, 上述 BSSGP下行数据消息中包含附着拒绝 消息、 上述 MS 的 IMSI、 上述附着请求消息、 重定向指示 (redirection indication )和拒绝原因值(reject cause ), 其中, 上述附着拒绝消息中也包 含上述拒绝原因值; BSS可以保存附着拒绝消息。
其中, 上述拒绝原因值可以包含在上述重定向指示中, 或者还可以为一 个独立的信元, 本实施例对此不进行限制;
步骤 705、 BSS根据获取的重定向指示, 获知 SGSN1拒绝 MS接入, 保存获取的上述拒绝原因值, 向 SGSN2发送 BSSGP 上行数据(BSSGP UL-UNIDATA )消息, 上述 BSSGP上行数据消息中包含上述附着请求消息、 重定向尝试标识( redirection attempt flag )和上述 MS的 IMSI , 上述重定向 尝试标识可以用于指示 BSS支持 MOCN;
步骤 706、 SGSN2根据获取的上述 MS的 IMSI , 获取上述 MS的签约 数据或配置数据, 判断上述 MS不能够接入, 则向 BSS发送 BSSGP下行数 据 ( BSSGP DL-UNIDATA )消息, 上述 BSSGP下行数据消息中包含附着拒 绝消息、 上述 MS 的 IMSI、 上述附着请求消息、 重定向指示 (redirection indication )和拒绝原因值(reject cause ), 其中, 上述附着拒绝消息中也包 含上述拒绝原因值; BSS可以保存所述附着拒绝消息。
其中, 上述拒绝原因值可以包含在上述重定向指示中, 或者还可以为一 个独立的信元, 本实施例对此不进行限制;
具体地, SGSN2可以根据上述 BSSGP上行数据消息中包含的重定向尝 试标识, 向 MS发送重置( Reset )消息, 重置该 SGSN2与 MS交互的 LLC 参数。 需要说明的是: 上述 LLC参数至少可以包括下列参数中的一项: LLC 计数器(counter ), LLC层使用的序列号( sequence number )、 LLC层使用 的不确认的序列号( Unconfirmed sequence number, N(U) )、 LLC层使用的 不确认发送状态变量(Unconfirmed send state variable, V(U) )、 LLC层其 他控制域参数或者变量:接收序列号等 (Receive Sequence Number, N(R))。 在与上述 MS进行消息交互时, 可以将重置的 LLC参数填写在消息 (例如: 鉴权消息) 中的相应位置, 避免 MS丟弃上述消息。
步骤 707、 由于 BSS已经获取到了与该 BSS互联的所有的 SGSN发送 的重定向指示, 设置最轻的拒绝原因值对应的 LLC参数为最新的 LLC参数, 向 MS发送上述最轻的拒绝原因值对应的附着拒绝消息, 上述附着拒绝消息 中包含最轻的拒绝原因值;
本步骤中, BSS已经获取到了与该 BSS互联的所有的 SGSN发送的重 定向指示, 已经不存在可以再重定向的其他 SGSN。 BSS读取(获取)最后 一个 SGSN发送的拒绝原因值对应的 LLC参数 (即最新的 LLC参数), BSS 比较所获取的拒绝原因值 (包括之前获取的所有拒绝原因值), 并设置最轻的 原因值对应的 LLC参数为上述最新的 LLC参数。 具体地, BSS读取最后一 个 SGSN发送消息中包括的 N(U)值(即最新的 N(U)值), 将 N(U)值填写在 最轻原因值对应的 SGSN发送消息中的 N(U)域中, 替换 SGSN发送消息中 原先的 N(U)值, 即设置最轻原因值对应的 N(U)值为最新的 N(U)值。 如果最 轻的拒绝原因值对应的 SGSN为最后一个 SGSN , 则 BSS直接将最轻的拒 绝原因值对应的接入请求拒绝消息发送到 MS。 BSS可以参考图 12中的各域 读取或者填写 LLC参数, 其中, 具体说明如下: A Acknowledgement request bit确认请求位;
E Encryption function bit力口密功能位;
Mn Unnumbered function bit无编号功能位;
N(R) Transmitter receive sequence number传递者接收序列号;
N(S) Transmitter send sequence number传递者发送序列号;
N(U) Transmitter unconfirmed sequence number传递者非确认序列 号;
P/F Poll bit, when issued as a command请求位;
Final bit, when issued as a response最后位;
PM Protected mode bit保护模式位;
Sn Supervisory function bit监督功能位;
X Spare bit 空闲位;
其 中 现有标 准规定 的 拒 绝原 因 值从轻到 重顺序 为 : #15<#14<#13<#12<#11 , 其中, 各拒绝原因值含义如下:
#11 PLMN not allowed ( PLMN不允许接入);
#12 Location Area not allowed (位置区不允许接入 );
#13 Roaming not allowed in the location area (位置区不允许漫游 ); #14 GPRS services not allowed in this PLMN ( PLMN不允许 GPRS业 务);
#15 No Suitable Cells in Location Area (位置区没有合适小区)。
具体地, 如果 SGSN1 发送的拒绝原因值为 15 ( No Suitable Cells in Location Area ), SGSN2发送的拒绝原因值为 11 ( PLMN not allowed ), 根 据现有标准规定, 由于拒绝原因值 15比拒绝原因值 11 轻, 那么 BSS读取 SGSN2发送消息中包括的 LLC参数,并替换 SGSN1发送消息中包含的 LLC 参数, 具体的 BSS读取 SGSN2发送消息中包括的 N(U)值, 替换 SGSN1 发送消息中包括的 N(U)值。即设置 SGSN1消息中的 N(U)值为 SGSN2消息 中的 N(U)值。 向 MS发送 SGSN1发送的接入请求拒绝消息; 如果 SGSN1 发送的拒绝接入原因值为 12 ( Location Area not allowed ), SGSN2发送的 才巨绝接入原因值为 13 ( Roaming not allowed in the location area ), 才艮据现 有标准规定, 由于拒绝原因值 13比拒绝原因值 12轻, 那么向 MS直接发送 上述 SGSN2的附着拒绝消息。
步骤 708、 MS根据上述最轻的拒绝原因值, 重新选网接入。
本实施例中, 当 BSS获取到与该 BSS互联的所有的 SGSN发送的拒绝 原因值之后, 通过 BSS根据获取的与上述 BSS互联的所有的 SGSN发送的 MS的拒绝原因值,设置最轻的拒绝原因值对应的 LLC参数为最新的 LLC参 数, 能够使得 BSS利用该最新的 LLC参数向 MS返回最轻的拒绝原因值, 避免了由于 MS丟弃 SGSN发送的接入请求拒绝消息的问题, 从而减少网络 的接入时延, 提高了用户体验。
需要说明的是: 对于前述的各方法实施例, 为了简单描述, 故将其都表 述为一系列的动作组合, 但是本领域技术人员应该知悉, 本发明并不受所描 述的动作顺序的限制, 因为依据本发明, 某些步骤可以釆用其他顺序或者同 时进行。 其次, 本领域技术人员也应该知悉, 说明书中所描述的实施例均属 于优选实施例, 所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中, 对各个实施例的描述都各有侧重, 某个实施例中没有 详述的部分, 可以参见其他实施例的相关描述。
图 8为本发明实施例八提供的一种网络接入装置的结构示意图, 如图 8所 示, 本实施例的网络接入装置可以包括接收模块 81、 获取模块 82和发送模 块 83。 其中, 接收模块 81接收接入网设备发送的第一 SGSN拒绝 MS接入 的第一拒绝原因值, 上述第一拒绝原因值为第一 SGSN发送给上述接入网设 备的, 获取模块 82获取自己的第二拒绝原因值, 发送模块 83向上述接入网 设备发送上述第一拒绝原因值和上述第二拒绝原因值中较轻的拒绝原因值。
上述本发明实施例一中第二 SGSN、 本发明实施例三中 SGSN2的功能 均可以由本实施例提供的网络接入装置实现。
进一步地,本实施例中的接收模块 81可以具体用于接收接入网设备发送 的 BSSGP上行数据消息, 上述 BSSGP上行数据消息中包含第一 SGSN拒 绝 MS接入的第一拒绝原因值。
进一步地,本实施例中的发送模块 83具体可以用于向上述接入网设备发 送 BSSGP下行数据消息, 上述 BSSGP下行数据消息中包含上述较轻的拒 绝原因值和包含上述较轻的拒绝原因值的接入请求拒绝消息。 具体地, 发送 模块 83具体可以用于获知上述第一拒绝原因值不为 CS/PS协作, 向上述接 入网设备发送上述第一拒绝原因值和上述第二拒绝原因值中较轻的拒绝原因 值。 发送模块 83还可以用于获知上述第一拒绝原因值为 CS/PS协作, 向上 述接入网设备发送上述第二拒绝原因值。
本实施例中, 通过接收模块接收接入网设备发送的第一 SGSN拒绝 MS 接入的第一拒绝原因值, 以及获取模块获取该第二 SGSN拒绝上述 MS接入 的第二拒绝原因值, 从而使得发送模块能够向上述接入网设备发送上述第一 拒绝原因值和上述第二拒绝原因值中较轻的拒绝原因值, 从而使得接入网设 备获取到的拒绝原因值总是最轻的, 继而当获取到与该接入网设备互联的所 有的 SGSN发送的拒绝原因值之后能够向 MS返回最后获取到的包含最轻的 拒绝原因值的接入请求拒绝消息, 避免了由于 MS丟弃 SGSN发送的接入请 求拒绝消息的问题, 从而减少网络的接入时延, 提高了用户体验。
图 9为本发明实施例九提供的另一种网络接入装置的结构示意图, 如图 9 所示, 本实施例的网络接入装置可以包括发送模块 91和获取模块 92。 其中, 发送模块 91向第二 SGSN发送第一 SGSN拒绝 MS接入的第一拒绝原因值, 上述第一拒绝原因值为第一 SGSN发送给上述接入网设备的, 获取模块 92 获取上述第二 SGSN发送的上述第一拒绝原因值和第二拒绝原因值中较轻的 拒绝原因值,上述第二拒绝原因值为上述第二 SGSN获取的该第二 SGSN拒 绝上述 MS接入的拒绝原因值。 上述本发明实施例二中接入网设备、本发明实施例三中 BSS的功能均可 以由本实施例提供的网络接入装置实现。
进一步地, 本实施例中的发送模块 91具体可以用于向第二 SGSN发送 BSSGP上行数据消息, 上述 BSSGP上行数据消息中包含第一 SGSN拒绝 MS接入的第一拒绝原因值。 具体地, 发送模块 91具体可以用于获知上述第 一拒绝原因值不为 CS/PS协作, 向第二 SGSN发送第一 SGSN拒绝 MS接 入的第一拒绝原因值。
进一步地,本实施例中的获取模块 92具体可以用于接收上述第二 SGSN 发送的 BSSGP下行数据消息, 上述 BSSGP下行数据消息中包含上述较轻 的拒绝原因值和包含上述较轻的拒绝原因值的接入请求拒绝消息。 获取模块 92还可以用于向上述 MS发送包含上述较轻的拒绝原因值的接入请求拒绝消 息。
本实施例中,通过发送模块向第二 SGSN发送第一 SGSN拒绝 MS接入 的第一拒绝原因值, 获取模块获取上述第二 SGSN发送的上述第一拒绝原因 值和上述第二 SGSN获取的该第二 SGSN拒绝上述 MS接入的第二拒绝原因 值中较轻的拒绝原因值, 从而使得接入网设备获取到的拒绝原因值总是最轻 的, 继而当获取到与该接入网设备互联的所有的 SGSN发送的拒绝原因值之 后能够向 MS 返回最后获取到的包含最轻的拒绝原因值的接入请求拒绝消 息, 避免了由于 MS丟弃 SGSN发送的接入请求拒绝消息的问题, 从而减少 网络的接入时延, 提高了用户体验。
图 10为本发明实施例十提供的再一种网络接入装置的结构示意图, 如图 10 所示, 本实施例的网络接入装置可以包括第一发送模块 1001、 接收模块 1002和第二发送模块 1003。 其中, 第一发送模块 1001根据获取的 SGSN 发送的拒绝原因值, 向最轻的拒绝原因值对应的 SGSN发送上述 MS的接入 请求消息, 接收模块 1002接收上述 SGSN返回的接入请求拒绝消息, 第二 发送模块 1003向上述 MS发送上述接入请求拒绝消息。 上述本发明实施例四中接入网设备、本发明实施例五中 BSS的功能均可 以由本实施例提供的网络接入装置实现。
本实施例中, 当接入网设备获取到与该接入网设备互联的所有的 SGSN 发送的拒绝原因值之后, 通过第一发送模块根据获取的 SGSN发送的 MS的 拒绝原因值, 向最轻的拒绝原因值对应的 SGSN发送上述 MS的接入请求消 息, 能够使得接收模块最后获取到的拒绝原因值是最轻的, 继而第二发送模 块向 MS返回最后获取到的拒绝原因值, 避免了由于 MS丟弃 SGSN发送的 接入请求拒绝消息的问题, 从而减少网络的接入时延, 提高了用户体验。
图 11 为本发明实施例十一提供的又一种网络接入装置的结构示意图, 如 图 11 所示, 本实施例的网络接入装置可以包括设置模块 1101 和发送模块 1102。 其中, 设置模块 1101根据获取的 SGSN发送的拒绝原因值, 设置最 轻的拒绝原因值对应的 LLC参数为最新的 LLC参数, 发送模块 1102向 MS 发送所述最轻的拒绝原因值对应的接入请求拒绝消息。
上述本发明实施例六中接入网设备、本发明实施例七中 BSS的功能均可 以由本实施例提供的网络接入装置实现。
进一步地, 本实施例中的设置模块 1101 具体可以用于获取最后一个 SGSN发送的最新的 LLC参数, 根据获取的 SGSN发送的拒绝原因值, 设 置最轻的拒绝原因值对应的 LLC参数为所述最新的 LLC参数。
本实施例中, 当接入网设备获取到与该接入网设备互联的所有的 SGSN 发送的拒绝原因值之后, 通过设置模块根据获取的 SGSN发送的 MS的拒绝 原因值,设置最轻的拒绝原因值对应的 LLC参数为最新的 LLC参数, 能够使 得发送模块利用该最新的 LLC参数向 MS返回最轻的拒绝原因值, 避免了由 于 MS丟弃 SGSN发送的接入请求拒绝消息的问题, 从而减少网络的接入时 延, 提高了用户体验。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: ROM、 RAM,磁碟或者光盘等各种可以存^^呈序代码的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对其 限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通技术 人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或 者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技 术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权 利 要求
1、 一种网络接入方法, 其特征在于, 包括:
第二 SGSN接收接入网设备发送的第一拒绝原因值, 所述第一拒绝原因 值为第一 SGSN发送给所述接入网设备的;
所述第二 SGSN获取自己的第二拒绝原因值;
所述第二 SGSN向所述接入网设备发送所述第一拒绝原因值和所述第二 拒绝原因值中较轻的拒绝原因值。
2、 根据权利要求 1所述的方法, 其特征在于, 所述第二 SGSN接收接 入网设备发送的第一拒绝原因值之前还包括:
所述第一 SGSN获取 MS的 IMSI;
所述第一 SGSN根据所述 MS的 IMSI ,获取所述 MS的签约数据或配置 数据;
所述第一 SGSN根据所述 MS的签约数据或配置数据, 获取第一拒绝原 因值;
所述第一 SGSN向所述接入网设备发送所述第一拒绝原因值。
3、 根据权利要求 1所述的方法, 其特征在于, 所述第二 SGSN接收接入 网设备发送的第一拒绝原因值之前还包括:
所述第一 SGSN接收接入网设备发送的第三拒绝原因值, 所述第三拒绝 原因值为第三 SGSN发送给所述接入网设备的;
所述第一 SGSN获取 MS的 IMSI ; 所述第一 SGSN根据所述 MS的 IMSI , 获取所述 MS的签约数据或配置数据; 所述第一 SGSN根据所述 MS的签约数 据或配置数据, 获取自己的拒绝原因值;
所述第一 SGSN向所述接入网设备发送所述第一拒绝原因值, 所述第 ― 拒绝原因值为所述第一 SGSN自己的拒绝原因值和所述第三拒绝原因值中较 轻的拒绝原因值。
4、 根据权利要求 1所述的方法, 其特征在于, 所述第二 SGSN接收接 入网设备发送的第一拒绝原因值包括:
所述第二 SGSN接收接入网设备发送的 BSSGP上行数据消息, 所述 BSSGP上行数据消息中包含所述第一拒绝原因值。
5、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 所述第 二 SGSN接收所述接入网设备发送的所述 MS的 IMSI; 则所述第二 SGSN 获取自己的第二拒绝原因值包括:
所述第二 SGSN根据所述 MS的 IMSI ,获取所述 MS的签约数据或配置 数据;
所述第二 SGSN根据所述 MS的签约数据或配置数据, 获取自己的第二 拒绝原因值。
6、 根据权利要求 1所述的方法, 其特征在于, 所述第二 SGSN向所述 接入网设备发送所述第一拒绝原因值和所述第二拒绝原因值中较轻的拒绝原 因值包括:
所述第二 SGSN 向所述接入网设备发送 BSSGP 下行数据消息, 所述 BSSGP 下行数据消息中包含所述较轻的拒绝原因值和包含所述较轻的拒绝 原因值的接入请求拒绝消息。
7、 根据权利要求 6所述的方法, 其特征在于, 所述方法还包括: 所述接入网设备向所述 MS发送包含所述较轻的拒绝原因值的接入请求 拒绝消息。
8、 根据权利要求 7 所述的方法, 其特征在于, 所述接入网设备向所述
MS发送包含所述较轻的拒绝原因值的接入请求拒绝消息包括:
如果所述接入网设备已经获取到了与所述接入网设备互联的所有的
SGSN发送的拒绝原因值, 则所述接入网设备向所述 MS发送包含所述较轻 的拒绝原因值的接入请求拒绝消息。
9、根据权利要求 1至 8任一权利要求所述的方法, 其特征在于, 所述第 二 SGSN接收接入网设备发送的第一拒绝原因值之前还包括: 所述接入网设备获知所述第一拒绝原因值不为 CS/PS协作。
10、 根据权利要求 1至 8任一权利要求所述的方法, 其特征在于, 所述 第二 SGSN向所述接入网设备发送所述第一拒绝原因值和所述第二拒绝原因 值中较轻的拒绝原因值之前还包括:
所述第二 SGSN获知所述第一拒绝原因值不为 CS/PS协作。
11、 一种网络接入方法, 其特征在于, 包括:
接入网设备向第二 SGSN发送第一拒绝原因值, 所述第一拒绝原因值为 第一 SGSN发送给所述接入网设备的;
所述接入网设备获取所述第二 SGSN发送的所述第一拒绝原因值和第二 拒绝原因值中较轻的拒绝原因值, 所述第二拒绝原因值为所述第二 SGSN获 取的自己的拒绝原因值。
12、根据权利要求 11所述的方法, 其特征在于, 所述接入网设备向第二 SGSN发送第一拒绝原因值之前还包括:
所述第一 SGSN获取 MS的 IMSI;
所述第一 SGSN根据所述 MS的 IMSI ,获取所述 MS的签约数据或配置 数据;
所述第一 SGSN根据所述 MS的签约数据或配置数据, 获取第一拒绝原 因值;
所述第一 SGSN向所述接入网设备发送所述第一拒绝原因值。
13、根据权利要求 11所述的方法, 其特征在于, 所述接入网设备向第二
SGSN发送第一拒绝原因值之前还包括:
所述接入网设备向所述第一 SGSN发送第三拒绝原因值, 所述第三拒绝 原因值为第三 SGSN发送给所述接入网设备的;
所述第一 SGSN获取 MS的 IMSI; 所述第一 SGSN根据所述 MS的 IMSI , 获取所述 MS的签约数据或配置数据; 所述第一 SGSN根据所述 MS的签约数 据或配置数据, 获取自己的拒绝原因值; 所述第一 SGSN向所述接入网设备发送所述第一拒绝原因值, 所述第一 拒绝原因值为所述第一 SGSN自己的拒绝原因值和所述第三拒绝原因值中较 轻的拒绝原因值。
14、根据权利要求 11所述的方法, 其特征在于, 所述接入网设备向第二 SGSN发送第一拒绝原因值包括:
接入网设备向第二 SGSN发送 BSSGP上行数据消息, 所述 BSSGP上 行数据消息中包含所述第一拒绝原因值。
15、 根据权利要求 11所述的方法, 其特征在于, 所述方法还包括: 所述 接入网设备向所述第二 SGSN发送所述 MS的 IMSI; 所述第二 SGSN获取 自己的第二拒绝原因值包括:
所述第二 SGSN根据所述 MS的 IMSI ,获取所述 MS的签约数据或配置 数据;
所述第二 SGSN根据所述 MS的签约数据或配置数据, 获取自己的第二 拒绝原因值。
16、根据权利要求 11所述的方法, 其特征在于, 所述接入网设备获取所 述第二 SGSN发送的所述第一拒绝原因值和第二拒绝原因值中较轻的拒绝原 因值包括:
所述接入网设备接收所述第二 SGSN发送的 BSSGP下行数据消息, 所 述 BSSGP下行数据消息中包含所述较轻的拒绝原因值和包含所述较轻的拒 绝原因值的接入请求拒绝消息。
17、 根据权利要求 16所述的方法, 其特征在于, 所述方法还包括: 所述接入网设备向所述 MS发送包含所述较轻的拒绝原因值的接入请求 拒绝消息。
18、 根据权利要求 17 所述的方法, 其特征在于, 所述接入网设备向所 述 MS发送包含所述较轻的拒绝原因值的接入请求拒绝消息包括:
如果所述接入网设备已经获取到了与所述接入网设备互联的所有的 SGSN发送的拒绝原因值, 则所述接入网设备向所述 MS发送包含所述较轻 的拒绝原因值的接入请求拒绝消息。
19、 根据权利要求 11至 18任一权利要求所述的方法, 其特征在于, 所 述接入网设备向第二 SGSN发送第一拒绝原因值之前还包括:
所述接入网设备获知所述第一拒绝原因值不为 CS/PS协作。
20、 一种网络接入方法, 其特征在于, 包括:
接入网设备根据获取的 SGSN发送的拒绝原因值, 向最轻的拒绝原因值 对应的 SGSN发送所述 MS的接入请求消息;
所述接入网设备接收所述 SGSN返回的接入请求拒绝消息;
所述接入网设备向所述 MS发送所述接入请求拒绝消息。
21、 根据权利要求 20 所述的方法, 其特征在于, 所述接入网设备根据 获取的 SGSN发送的拒绝原因值,向最轻的拒绝原因值对应的 SGSN发送所 述 MS的接入请求消息之前还包括:
所述 SGSN获取 MS的 IMSI;
所述 SGSN根据所述 MS的 IMSI ,获取所述 MS的签约数据或配置数据; 所述 SGSN根据所述 MS的签约数据或配置数据, 获取的拒绝原因值; 所述 SGSN向所述接入网设备发送所述拒绝原因值。
22、 一种网络接入方法, 其特征在于, 包括:
接入网设备根据获取的 SGSN发送的拒绝原因值, 设置最轻的拒绝原因 值对应的 LLC参数为最新的 LLC参数;
所述接入网设备向 MS发送所述最轻的拒绝原因值对应的接入请求拒绝 消息。
23、 根据权利要求 22 所述的方法, 其特征在于, 所述接入网设备根据 获取的 SGSN发送的拒绝原因值,设置最轻的拒绝原因值对应的 LLC参数为 最新的 LLC参数包括:
所述接入网设备获取最后一个 SGSN发送的最新的 LLC参数,根据获取 的 SGSN发送的拒绝原因值,设置最轻的拒绝原因值对应的 LLC参数为所述 最新的 LLC参数。
24、 根据权利要求 22或 23所述的方法, 其特征在于, 所述接入网设备 根据获取的 SGSN发送的拒绝原因值,设置最轻的拒绝原因值对应的 LLC参 数为最新的 LLC参数之前还包括:
所述 SGSN获取 MS的 IMSI;
所述 SGSN根据所述 MS的 IMSI ,获取所述 MS的签约数据或配置数据; 所述 SGSN根据所述 MS的签约数据或配置数据, 获取拒绝原因值; 所述 SGSN向所述接入网设备发送所述拒绝原因值。
25、根据权利要求 22或 23所述的方法, 其特征在于, 所述 LLC参数包 括下列参数中的一种:
LLC计数器、 LLC层使用的序列号、 LLC层使用的不确认的序列号、 LLC 层使用的不确认发送状态变量、 LLC层其他控制域参数或者变量。
26、 一种网络接入装置, 其特征在于, 包括:
接收模块, 用于接收接入网设备发送的第一拒绝原因值, 所述第一拒绝 原因值为第一 SGSN发送给所述接入网设备的;
获取模块, 用于获取自己的第二拒绝原因值;
发送模块, 用于向所述接入网设备发送所述第一拒绝原因值和所述第二 拒绝原因值中较轻的拒绝原因值。
27、 根据权利要求 26 所述的装置, 其特征在于, 所述接收模块具体用 于接收接入网设备发送的 BSSGP上行数据消息, 所述 BSSGP上行数据消 息中包含所述第一拒绝原因值。
28、 根据权利要求 26 所述的装置, 其特征在于, 所述发送模块具体用 于向所述接入网设备发送 BSSGP下行数据消息, 所述 BSSGP下行数据消 息中包含所述较轻的拒绝原因值和包含所述较轻的拒绝原因值的接入请求拒 绝消息。
29、 根据权利要求 26至 28任一权利要求所述的装置, 其特征在于, 所 述发送模块具体用于获知所述第一拒绝原因值不为 CS/PS协作,向所述接入 网设备发送所述第一拒绝原因值和所述第二拒绝原因值中较轻的拒绝原因 值。
30、 一种网络接入装置, 其特征在于, 包括:
发送模块, 用于向第二 SGSN发送第一拒绝原因值, 所述第一拒绝原因 值为第一 SGSN发送给所述接入网设备的;
获取模块, 用于获取所述第二 SGSN发送的所述第一拒绝原因值和第二 拒绝原因值中较轻的拒绝原因值, 所述第二拒绝原因值为所述第二 SGSN获 取的自己的拒绝原因值。
31、 根据权利要求 30 所述的装置, 其特征在于, 所述发送模块具体用 于向第二 SGSN发送 BSSGP上行数据消息, 所述 BSSGP上行数据消息中 包含所述第一拒绝原因值。
32、 根据权利要求 30 所述的装置, 其特征在于, 所述获取模块具体用 于接收所述第二 SGSN发送的 BSSGP下行数据消息, 所述 BSSGP下行数 据消息中包含所述较轻的拒绝原因值和包含所述较轻的拒绝原因值的接入请 求拒绝消息。
33、 根据权利要求 32 所述的装置, 其特征在于, 所述获取模块还用于 向所述 MS发送包含所述较轻的拒绝原因值的接入请求拒绝消息。
34、 根据权利要求 30至 33任一权利要求所述的装置, 其特征在于, 所 述发送模块具体用于获知所述第一拒绝原因值不为 CS/PS 协作, 向第二 SGSN发送第一 SGSN的第一拒绝原因值。
35、 一种网络接入装置, 其特征在于, 包括:
第一发送模块, 用于根据获取的 SGSN发送的拒绝原因值, 向最轻的拒 绝原因值对应的 SGSN发送所述 MS的接入请求消息;
接收模块, 用于接收所述 SGSN返回的接入请求拒绝消息; 第二发送模块, 用于向所述 MS发送所述接入请求拒绝消息。
36、 一种网络接入装置, 其特征在于, 包括:
设置模块, 用于根据获取的 SGSN发送的拒绝原因值, 设置最轻的拒绝 原因值对应的 LLC参数为最新的 LLC参数;
发送模块, 用于向 MS发送所述最轻的拒绝原因值对应的接入请求拒绝 消息。
37、 根据权利要求 36 所述的装置, 其特征在于, 所述设置模块具体用 于获取最后一个 SGSN发送的最新的 LLC参数, 根据获取的 SGSN发送的 拒绝原因值,设置最轻的拒绝原因值对应的 LLC参数为所述最新的 LLC参数。
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