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WO2015032036A1 - Procédé et dispositif de réalisation d'interfonctionnement entre un réseau cellulaire et un réseau local sans fil - Google Patents

Procédé et dispositif de réalisation d'interfonctionnement entre un réseau cellulaire et un réseau local sans fil Download PDF

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Publication number
WO2015032036A1
WO2015032036A1 PCT/CN2013/082915 CN2013082915W WO2015032036A1 WO 2015032036 A1 WO2015032036 A1 WO 2015032036A1 CN 2013082915 W CN2013082915 W CN 2013082915W WO 2015032036 A1 WO2015032036 A1 WO 2015032036A1
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WO
WIPO (PCT)
Prior art keywords
wlan
user equipment
information
cellular network
network site
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/082915
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English (en)
Chinese (zh)
Inventor
靳维生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201380004525.6A priority Critical patent/CN104770019B/zh
Priority to PCT/CN2013/082915 priority patent/WO2015032036A1/fr
Publication of WO2015032036A1 publication Critical patent/WO2015032036A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • Embodiments of the present invention relate to the field of communication technologies, and, more particularly, to a method and apparatus for implementing interoperability between a cellular network and a wireless local area network. Background technique
  • WLAN Wireless Local Area Networks
  • operators deploy cellular network base stations (including macro base stations, micro base stations, home base stations, femto cells or A pico cell (pico cell, etc.) is integrated with a WLAN AP (Access Point) on the base station; or, a WLAN AP is placed in a vicinity of the cellular network base station, so that the coverage of the cellular network base station and the WLAN AP is It has overlapping areas and realizes the network form of cellular network and WLAN interworking. In this way, operating costs can be reduced and the throughput of mobile networks can be increased.
  • the effective discovery and selection of WLAN APs by UEs residing in a cellular network is an urgent problem to be solved.
  • 3GPP The 3 rd Generation Partnership Project , Third Generation Partnership Project
  • ANDSF Access Network Discovery and Selection Function , to access network discovery and selection function
  • the server sends the relevant access network information to the UE (User Equipment), such as ANDI (Access Network Discovery Information) and ISMP (Inter-System Mobility Policy). And ISRP (Inter-System Routing Policy).
  • UE User Equipment
  • ANDI Access Network Discovery Information
  • ISMP Inter-System Mobility Policy
  • ISRP Inter-System Routing Policy
  • the UE needs to obtain access network information through the server of the core network user plane, thereby increasing the location topology and status, resulting in increased delay and inefficiency.
  • Embodiments of the present invention provide a method and a device for implementing interoperation between a cellular network and a wireless local area network, which can improve efficiency.
  • a method for implementing interoperability between a cellular network and a wireless local area network includes: the user equipment receives the information of the first WLAN access point WLAN AP that is generated and sent by the first cellular network station; and the user equipment determines, according to the information of the first WLAN AP, whether to access the first WLAN AP The user equipment accesses the first WLAN AP if it is determined to access the first WLAN AP.
  • the method before the accessing the first WLAN AP, the method further includes: the user equipment opening a WLAN module of the user equipment.
  • the information of the first WLAN AP includes at least one of the following information: an identifier, a location of the first WLAN AP
  • the method includes: when the user equipment determines that the following at least one condition is met, the user equipment determines to access the first WLAN AP: the user equipment determines, according to the identifier of the first WLAN AP, that the first cellular network site integrates the first WLAN AP; and the user equipment determines, according to the transmit power information of the first WLAN AP, The user equipment is located in the coverage of the first WLAN AP, and the user equipment determines, according to the resource usage information of the first WLAN AP, that the unused resources of the first WLAN AP meet the user equipment.
  • the user equipment determines, according to the information about the WLAN access mode supported by the first WLAN AP, the capability of the user equipment to support the WLAN access mode supported by the first WLAN AP;
  • the information about the traffic distribution mode supported by the first WLAN AP determines whether the traffic distribution mode supported by the first WLAN AP meets the requirements of the service accessed by the user equipment; And determining, by the user equipment, that the capability of the user equipment supports the PLMN ID supported by the first WLAN AP according to the PLMN ID supported by the first WLAN AP.
  • the user equipment determines, according to the identifier of the first WLAN AP, the first cellular network site integration.
  • a WLAN AP comprising: determining, by the user equipment, the first cellular network site integration according to a correspondence between an identifier of the first WLAN AP and an identifier of a WLAN AP that is integrated by the stored first cellular network site The first WLAN AP; or the user The device determines, according to the indication information of the first WLAN identifier in the information of the first WLAN AP, that the first cellular network site integrates the first WLAN AP.
  • the user equipment determines, according to the transmit power information of the first WLAN AP, that the location where the user equipment is located is located.
  • the coverage of the first WLAN AP includes: determining, by the user equipment, the coverage of the first WLAN AP according to the transmit power information of the first WLAN AP, and receiving, by the user equipment, the first The signal measurement value of the site determines the location where the user equipment is located, and determines that the location where the user equipment is located is located in the first WLAN AP according to the coverage of the first WLAN AP and the location of the user equipment. Within the coverage.
  • the transmit power information of the first WLAN AP includes at least one of the following: a transmit power of the first WLAN AP a value, a transmit power level of the first WLAN AP, and a ratio or offset of a transmit power of the first WLAN AP to a transmit power of the first cellular network site.
  • the user equipment receives information about a first WLAN access point WLAN AP that is generated and sent by the first cellular network site.
  • the user equipment receives information of multiple WLAN APs generated and sent by the first cellular network site, and the information of the multiple WLAN APs includes information of the first WLAN AN;
  • the transmit power value of the first WLAN AP is the maximum value of the transmit power values of the multiple WLAN APs, or the transmit power level of the first WLAN AP is the middle of the transmit power levels of the multiple WLAN APs.
  • the ratio of the transmit power of the first WLAN AP to the transmit power of the first cellular network site is a ratio of a transmit power of the plurality of WLAN APs to a transmit power of the first cellular network site.
  • the offset of the transmit power of the first WLAN AP and the transmit power of the first cellular network site when the transmit power of the first WLAN AP is less than the transmit power of the first cellular network site The value is the smallest of the offset values of the transmit power of the plurality of WLAN APs and the transmit power of the first cellular network site; or when the transmit power of the first WLAN AP is greater than the first cellular network site Transmit power, the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs and the first cellular network station
  • the offset of the transmit power of the point is the largest.
  • the resource usage information of the first WLAN AP includes at least one of the following: an air interface resource of the first WLAN AP The information, the backhaul bandwidth information of the first WLAN AP, the central processing unit CPU processing resource information of the first WLAN AP, and the first connection capacity information;
  • Determining, by the user equipment, that the unused resource of the first WLAN AP meets the resource requirement of the user equipment, according to the resource usage information of the first WLAN AP includes: when the user equipment determines that the following at least one condition is met, The user equipment determines that the unused resources of the first WLAN AP meet the resource requirements of the user equipment: the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; The percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resource is greater than a second ratio threshold; the percentage of the backhaul bandwidth of the first WLAN AP that is free of the total backhaul bandwidth is greater than a third ratio threshold; The percentage of the connection capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold.
  • the user equipment determines, according to information about a WLAN access mode supported by the first WLAN AP,
  • the capability of the WLAN access mode supported by the first WLAN AP is as follows: the user equipment is configured according to the WLAN access mode supported by the first WLAN AP and the WLAN AP access mode stored in the user equipment. Corresponding relationship, determining that the capability of the user equipment supports the WLAN access mode supported by the first WLAN AP.
  • the user equipment determines, according to the PLMN ID supported by the first WLAN AP, the capability of the user equipment to support the The PLMN ID supported by the first WLAN AP includes: determining, by the user equipment, the capability support of the user equipment according to the correspondence between the PLMN ID supported by the first WLAN AP and the PLMN ID stored in the user equipment.
  • the PLMN ID supported by the first WLAN AP includes: determining, by the user equipment, the capability support of the user equipment according to the correspondence between the PLMN ID supported by the first WLAN AP and the PLMN ID stored in the user equipment.
  • the PLMN ID supported by the first WLAN AP includes: determining, by the user equipment, the capability support of the user equipment according to the correspondence between the PLMN ID supported by the first WLAN AP and the PLMN ID stored in the user equipment.
  • the PLMN ID supported by the first WLAN AP includes: determining, by the user equipment, the capability support of the user equipment according to the correspondence between the PLMN ID supported by the first WLAN
  • the user equipment when the user equipment is in an idle state and resides at the first cellular network site, the user equipment receives The information of the first WLAN AP that is generated and sent by the first cellular network station, includes: the user equipment receives a broadcast control channel BCCH sent by the first cellular network station, The BCCH carries information of the first WLAN AP generated by the first cellular network site.
  • the user equipment when the user equipment is in a connected state and connected to a second cellular network site, the user equipment receives the first
  • the information of the first WLAN AP that is generated and sent by the cellular network station includes: the user equipment receives and reads the BCCH sent by the first cellular network station according to the guidance of the second cellular network station, where the BCCH carries The information of the first WLAN AP generated by the first cellular network site.
  • the user equipment when the user equipment determines to access the first WLAN AP, the user equipment sends the The second cell site sends a first radio resource control RRC message, where the first RRC message is used to notify the second cell network station that the user equipment can access the first WLAN AP.
  • the user equipment when the user equipment is in a connected state and connected to the first cellular network site, the user equipment receives The information of the first WLAN AP that is generated and sent by the first cellular network station, includes: the user equipment receives a second RRC message sent by the first cellular network station, where the second RRC message carries the first cellular network Information generated by the site of the WLAN AP.
  • the user equipment sends a third RRC message to the first cellular network station, where the third RRC message is used.
  • the user equipment that is notified to the first cellular network site can access the first WLAN AP.
  • a method for implementing interworking between a cellular network and a wireless local area network comprising: generating, by a first cellular network site, information of a first wireless local area network access point WLAN AP; the first cellular network site to a user The device sends the information of the first WLAN AP, to indicate that the user equipment determines whether to access the first WLAN AP according to the information of the first WLAN AP, and if it is determined to access the first WLAN AP, And accessing the first WLAN AP.
  • the information of the first WLAN AP includes at least one of the following information: an identifier of the first WLAN AP, a transmit power information of the first WLAN AP, The resource usage information of the first WLAN AP, the information of the WLAN access mode supported by the first WLAN AP, and the information of the offloading mode supported by the first WLAN AP And a public land mobile network identifier PLMN ID supported by the first WLAN AP;
  • the identifier of the first WLAN AP is used by the user equipment to determine whether the first WLAN AP is integrated with the first WLAN AP, and the transmit power information of the first WLAN AP is used by the user equipment. Determining whether the location where the user equipment is located is within the coverage of the first WLAN AP, and the resource usage information of the first WLAN AP is used by the user equipment to determine that the first WLAN AP is not used. The resource meets the resource requirement of the user equipment, and the information about the WLAN access mode supported by the first WLAN AP is used by the user equipment to determine whether the capability of the user equipment supports the WLAN supported by the first WLAN AP.
  • the access mode the information about the traffic split mode supported by the first WLAN AP is used by the user equipment to determine whether the traffic off mode supported by the first WLAN AP meets the service requirements of the user equipment, and the A PLMN ID supported by a WLAN AP is used by the user equipment to determine whether the capability of the user equipment supports a PLMN ID supported by the first WLAN AP.
  • the transmit power information of the first WLAN AP includes at least one of the following: a transmit power of the first WLAN AP a value, a transmit power level of the first WLAN AP, and a ratio or offset of a transmit power of the first WLAN AP to a transmit power of the first cellular network site.
  • the resource usage information of the first WLAN AP includes at least one of the following: an air interface resource of the first WLAN AP The information, the backhaul bandwidth information of the first WLAN AP, the central processing unit CPU processing resource information of the first WLAN AP, and the first connection capacity information.
  • the sending, by the first cellular network station, the information of the first WLAN AP to the user equipment, a cellular network station sends a broadcast control channel BCCH to the user equipment, where the BCCH carries information of the first WLAN AP generated by the first cellular network site, where the user equipment is in an idle state and resides in the Said first cellular network site, or said user equipment is in a connected state and connected to a second cellular network site.
  • the sending, by the first cellular network station, the information of the first WLAN AP to the user equipment A cellular network station sends a second radio resource control RRC to the user equipment
  • the second RRC message carries information about the first WLAN AP generated by the first cellular network site, where the user equipment is in a connected state and is connected to the first cellular network site.
  • the first cellular network station learns that the user equipment can be connected by using a third RRC message sent by the user equipment. Into the first WLAN AP.
  • a third aspect provides a user equipment, including: a receiving unit, configured to receive information of a first WLAN access point WLAN AP generated and sent by a first cellular network site; and a determining unit, configured to be used according to the receiving unit The received information of the first WLAN AP determines whether to access the first WLAN AP, and the access unit is configured to: when the determining unit determines to access the first WLAN AP, access the first A WLAN AP.
  • the user equipment further includes an opening unit, where the opening unit is configured to open a WLAN module of the user equipment.
  • the information about the first WLAN AP that is received by the receiving unit includes at least one of the following information: The identifier of the WLAN AP, the transmit power information of the first WLAN AP, the resource usage information of the first WLAN AP, the WLAN access mode information supported by the first WLAN AP, and the first WLAN AP supported by the first WLAN AP.
  • the determining unit is specifically configured to: determine to access the first WLAN AP when determining that the following at least one condition is met: the determining unit determines, according to the identifier of the first WLAN AP, the first cellular network site integration office Determining, by the first WLAN AP, the determining unit, according to the transmit power information of the first WLAN AP, that the location where the user equipment is located is within the coverage of the first WLAN AP; Determining, by the resource usage information of the WLAN AP, that the unused resource of the first WLAN AP meets the resource requirement of the user equipment; the determining unit determines the user according to the information of the WLAN access mode supported by the first WLAN AP The capability of the device supports the WLAN access mode supported by the first WLAN AP; the determining unit determines, according to the information about the offload mode supported by the first WLAN AP, whether the offload mode supported by the first WLAN AP satisfies the a request for the service accessed by the user equipment; and the determining unit determines, according to the PLMN ID
  • the determining unit is specifically configured to: according to the identifier of the first WLAN AP, and the stored first Determining a correspondence between the identifiers of the WLAN APs integrated by the network station, determining that the first cellular network site integrates the first WLAN AP; or the determining unit is specifically configured to: according to information in the information of the first WLAN AP The indication information of the first WLAN identifier determines that the first cellular network site integrates the first WLAN AP.
  • the determining unit is specifically configured to: determine, according to the transmit power information of the first WLAN AP, the first WLAN The coverage of the AP determines the location of the user equipment according to the signal measurement value of the first cell site, and the coverage of the first WLAN AP and the location of the user equipment. Determining that the location where the user equipment is located is within the coverage of the first WLAN AP.
  • the information of the multiple WLAN APs received by the receiving unit includes the foregoing a WLAN AP information
  • the determining unit Determining, by the determining unit, that the transmit power value of the first WLAN AP that is accessed is the maximum value of the transmit power values of the multiple WLAN APs, or that the transmit power level of the first WLAN AP is the multiple The highest of the WLAN AP's transmit power levels; or
  • a ratio of a transmit power of the first WLAN AP that is accessed to a transmit power of the first cellular network site is a transmit power of the multiple WLAN APs and a transmit of the first cellular network site The largest of the power ratios;
  • the determining unit determines the transmit power of the accessed first WLAN AP and the transmit of the first cellular network site
  • the offset value of the power is the smallest of the offset values of the transmit power of the plurality of WLAN APs and the transmit power of the first cellular network site;
  • the determining unit determines the transmit power of the accessed first WLAN AP and the transmit of the first cellular network site
  • the offset value of the power is the largest of the offset values of the transmit power of the plurality of WLAN APs and the transmit power of the first cellular network site.
  • the transmit power information of the first WLAN AP includes at least one of the following: a transmit power value of the WLAN AP, a transmit power level of the first WLAN AP, and a ratio or offset value of the transmit power of the first WLAN AP to the transmit power of the first cellular network site.
  • the resource usage information of the first WLAN AP that is received by the receiving unit includes at least one of the following: The air interface resource information of the WLAN AP, the backhaul bandwidth information of the first WLAN AP, the central processing unit CPU processing resource information of the first WLAN AP, and the first connection capacity information;
  • the determining unit is specifically configured to: when it is determined that the following at least one condition is met, determining that the unused resource of the first WLAN AP meets resource requirements of the user equipment:
  • the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; the percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resources is greater than the second ratio threshold; The percentage of the backhaul bandwidth of the first WLAN AP to the total backhaul bandwidth is greater than the third ratio threshold; and the percentage of the connected capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold.
  • the determining unit is specifically configured to: according to the WLAN access mode supported by the first WLAN AP, and stored in the Determining the correspondence between the WLAN AP access modes of the user equipment, and determining the capability of the user equipment to support the WLAN access mode supported by the first WLAN AP.
  • the determining unit is specifically configured to: store, according to the PLMN ID supported by the first WLAN AP, the user Corresponding relationship of the PLMN ID of the device, determining that the capability of the user equipment supports the PLMN ID supported by the first WLAN AP.
  • the receiving unit is specifically configured to: when the user equipment is in an idle state and resides in the first And the network station receives the broadcast control channel BCCH sent by the first cellular network station, where the BCCH carries the information of the first WLAN AP generated by the first cellular network station.
  • the receiving unit is specifically configured to: when the user equipment is in a connected state and connected to a second cellular network site Receiving and reading a BCCH sent by the first cellular network site according to a guide of the second cellular network site, where the BCCH carries the Information of the first WLAN AP.
  • the user equipment further includes a first sending unit, where the first sending unit is configured to send the second The cellular station sends a first radio resource control RRC message, where the first RRC message is used to notify the second cellular network station that the user equipment can access the first WLAN AP.
  • the receiving unit is specifically configured to: when the user equipment is in a connected state and connected to the first cellular network And receiving, by the first eNB, a second RRC message sent by the first cellular network station, where the second RRC message carries information about the WLAN AP generated by the first cellular network site.
  • the user equipment further includes a second sending unit, where the second sending unit is configured to The cellular network station sends a third RRC message, where the third RRC message is used to notify the first cellular network site that the user equipment can access the first WLAN AP.
  • a first cellular network site includes: a generating unit, configured to generate information of a first WLAN access point WLAN AP, and a sending unit, configured to send, to the user equipment
  • the information about the first WLAN AP generated by the generating unit to indicate that the user equipment determines whether to access the first WLAN AP according to the information of the first WLAN AP, and determines to access the first WLAN AP.
  • the first WLAN AP is accessed.
  • the information about the first WLAN AP that is sent by the sending unit includes at least one of the following information: an identifier of the first WLAN AP, the first WLAN The transmit power information of the AP, the resource usage information of the first WLAN AP, the information of the WLAN access mode supported by the first WLAN AP, the information about the split mode supported by the first WLAN AP, and the first WLAN.
  • the identifier of the first WLAN AP is used by the user equipment to determine whether the first WLAN AP is integrated with the first WLAN AP, and the transmit power information of the first WLAN AP is used by the user equipment. Determining whether the location where the user equipment is located is within the coverage of the first WLAN AP, and the resource usage information of the first WLAN AP is used by the user equipment to determine that the first WLAN AP is not used. The resource meets the resource requirement of the user equipment, and the information about the WLAN access mode supported by the first WLAN AP is used by the user equipment. Determining whether the capability of the user equipment supports the WLAN access mode supported by the first WLAN AP, and the information about the offload mode supported by the first WLAN AP is used by the user equipment to determine the first WLAN AP.
  • the PLMN ID supported by the first WLAN AP is used by the user equipment to determine whether the capability of the user equipment supports the first WLAN AP. PLMN ID.
  • the transmit power information of the first WLAN AP that is sent by the sending unit includes at least one of the following: a transmit power value of a WLAN AP, a transmit power level of the first WLAN AP, and a ratio or offset of a transmit power of the first WLAN AP to a transmit power of the first cellular network site.
  • the resource usage information of the first WLAN AP that is sent by the sending unit includes at least one of the following: The air interface resource information of the WLAN AP, the backhaul bandwidth information of the first WLAN AP, the central processing unit CPU processing resource information of the first WLAN AP, and the first connection capacity information.
  • the sending unit is specifically configured to: send a broadcast control channel BCCH to the user equipment, where the BCCH carries the Generating information of the first WLAN AP generated by the unit, wherein the user equipment is in an idle state and camped on the first cellular network site, or the user equipment is in a connected state and connected to a second cellular network site.
  • the sending unit is specifically configured to: send, to the user equipment, a second radio resource control RRC message, where The second RRC message carries the information of the first WLAN AP generated by the generating unit, where the user equipment is in a connected state and is connected to the first cellular network site.
  • the first cellular network site further includes a receiving unit, where the receiving unit is configured to receive the user equipment to send The third RRC message is used to learn, by using the third RRC message, that the user equipment can access the first WLAN AP.
  • the UE receives the information of the first WLAN AP that is generated and sent by the first cellular network site, and the UE determines whether to access the first WLAN AP according to the information of the WLAN AP, and determines to access the first WLAN AP. Accessing the first WLAN AP. Therefore, the UE does not need to go from the core
  • the ANDSF entity of the network user plane receives the information about the access network, directly receives the information of the WLAN AP generated and sent by the first cellular network site, reduces the delay, and improves the efficiency.
  • FIG. 1 is a schematic diagram of a cellular network scenario applicable to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for implementing interoperability between a cellular network and a wireless local area network according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another cellular network scenario applicable to the embodiment of the present invention
  • FIG. 4 is a schematic interaction diagram of the user equipment acquiring the first WLAN AP information according to an embodiment of the present invention.
  • FIG. 5 is a flow chart of a method for implementing interoperability between a cellular network and a wireless local area network according to an embodiment of the present invention
  • FIG. 6 is a schematic flow chart of a process for implementing a method for interworking between a cellular network and a wireless local area network according to an embodiment of the present invention
  • FIG. 7 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a cellular network site according to an embodiment of the present invention.
  • Figure 9 is a block diagram showing the structure of an apparatus according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 11 is a block diagram showing the structure of a cellular network site according to another embodiment of the present invention. detailed description
  • GSM Global System for Mobile communications
  • the cellular network station may be a BTS (Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or an eNB in LTE (e-NodeB).
  • BTS Base Transceiver Station
  • NodeB base station
  • e-NodeB evolutional Node B, evolved base station
  • the embodiment of the present invention does not limit the type of the base station, and may be a macro base station, a micro base station, a pico base station, a femto base station, or a home base station.
  • the user equipment may be referred to as a terminal (MT), an MS (Mobile Station), a mobile terminal (Mobile Terminal), etc., and the user equipment may be via a RAN (Radio Access Network).
  • Communicating with one or more core networks for example, the user equipment may be a mobile telephone (or "cellular" telephone), a computer with a mobile terminal, etc., for example, the user equipment may also be portable, pocket, handheld Computer built-in or in-vehicle mobile devices that exchange voice and/or data with a wireless access network.
  • the cellular network of the following embodiment is described by taking an eNB as an example of an LTE system and a cellular website point. It should be understood that the embodiments of the present invention are not limited thereto, and may be other mobile communication systems than the LTE system.
  • the WLAN AP 102 is integrated on the small cell base station 101, wherein the small cell base station can be a home base station HeNB (Home-eNB), or a micro cell base station, a pico cell base station, a femto cell base station.
  • the small cell base station can be a home base station HeNB (Home-eNB), or a micro cell base station, a pico cell base station, a femto cell base station.
  • a WLAN AP 103 is disposed in the vicinity of the small cell base station 101.
  • the coverage area of the small cell base station 101 and the WLAN AP 103 has an overlapping area, and the network form of the cellular network and the WLAN can be realized.
  • FIG. 1 the schematic diagram of the cellular network scenario of FIG. 1 is merely a scenario for implementing the present invention to more clearly describe the embodiments of the present invention, and is not intended to limit the scope of application of the embodiments of the present invention.
  • a small cell base station 101, two WLAN APs, and one UE 104 are depicted in FIG. 1, but embodiments of the present invention may further include a greater number of base stations, or may further include A larger number of UEs, or may also contain fewer or greater numbers of WLAN APs.
  • the base station may be other types of base stations, such as a micro base station, a pico base station, or a femto base station, in addition to the above-mentioned home base station.
  • the location where the WLAN AP is placed in the vicinity of the small cell base station 101 is not limited, and the adjacent area may be on the boundary of the coverage of the small cell base station 101 as shown in FIG. 1, or may be the coverage of the small cell base station 101. Out of the coverage of the in-range or small cell base station 101, the coverage of the deployed WLAN AP and the coverage of the small cell base station 101 have overlapping areas. This embodiment of the present invention is not limited thereto.
  • the user plane-based ANDSF entity (server) disposed in the core network sends relevant access network (WLAN network) information, such as ANDI, ISMP, and ISRP, to the UE.
  • WLAN network relevant access network
  • these associated access network information directs the UE to open the WLAN module, discover, select, and access the WLAN network under appropriate conditions (such as location or time).
  • the UE needs to obtain the WLAN network information through the server of the core network user plane, thereby increasing the network burden, and the server of the core network user plane cannot obtain the location topology and state of the wireless network in time and accurately, resulting in increased delay and inefficiency.
  • the UE needs to turn on the WLAN module function, and continuously scans and attempts to access the discovered WLAN AP, which not only consumes system resources, but also increases the power consumption of the UE.
  • the embodiments of the present invention provide a method and a device for implementing interoperability between a cellular network and a wireless local area network, which can not only improve efficiency, but also effectively save system resources and save power consumption of the UE.
  • FIG. 2 is a flow chart of a method of implementing cellular network and wireless local area network interoperation according to an embodiment of the present invention. The method of Figure 2 is performed by the UE.
  • the UE receives information of the first WLAN AP that is generated and sent by the first cellular network station.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP. It should be noted that the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP, including integrating the first WLAN AP on the first cellular network site or in the adjacent area of the first cellular network site. Put the first WLAN AP.
  • the information of the first WLAN AP may include at least one of the following: an identifier of the first WLAN AP, a transmit power information of the first WLAN AP, resource usage information of the first WLAN AP, and a WLAN access mode information supported by the first WLAN AP.
  • the identifier of the first WLAN AP may be a BSSID (Basic Service Set Identifier), an SSID (Service Set Identifier), and a HESSID (Homogenous Extended Service Set Identifier).
  • the BSSID is the MAC (Media Access Control) address of the AP and is the global unique identifier of the AP.
  • the SSID is the service set identifier of the operator's WLAN, and identifies the carrier's WLAN network.
  • the OUI/OI is a unique identifier of the WLAN roaming organization. The UE can determine whether the WLAN AP corresponding to the OUI/OI can roam to the home network of the UE (providing the WLAN subscription network) through the OUI/OI.
  • the identifier of the WLAN AP that the UE can access can be pre-configured in the UE, or sent to the UE by the receiving network side device (such as the network policy entity ANDSF), or by the operator in the SIM/USIM (Subscriber Identity Module/Universal Subscriber) Identity Module, User Identification Module / Global Subscriber Identity Module), configuration in the card, and more. It should be understood that the present invention is not limited to how the UE learns the identity of the accessible WLAN AP.
  • the UE determines, according to information about the first WLAN AP, whether to access the first WLAN AP.
  • the UE accesses the first WLAN AP when determining to access the first WLAN AP.
  • the UE opens the WLAN module of the UE to access the first WLAN.
  • the UE does not need to receive the information about the access network from the ANDSF entity of the core network user plane, directly receives the information of the WLAN AP generated and sent by the first cellular network site, reduces the delay, and improves the efficiency.
  • the UE determines to access the WLAN module of the UE and access the first WLAN AP according to the information of the received WLAN AP, and avoids continuous scanning and attempting, thereby effectively saving the system. Resources and saves UE power consumption.
  • step 202 when the UE determines that the following at least one condition is met, the UE determines to access the first WLAN AP:
  • the UE determines, according to the transmit power information of the first WLAN AP, that the location where the UE is located is within the coverage of the first WLAN AP;
  • the resource usage information of the WLAN AP determines that the unused resources of the first WLAN AP meet the resource requirements of the UE;
  • the UE determines, according to the information of the WLAN access mode supported by the first WLAN AP, that the capability of the UE supports the first WLAN AP.
  • the WLAN access mode; and the UE determines, according to the PLMN ID supported by the first WLAN AP, the capability of the UE to support the PLMN ID supported by the first WLAN AP.
  • the UE determines, according to the identifier of the first WLAN AP, the first cellular network site to integrate the first WLAN AP, specifically:
  • the UE may determine that the first cellular network site integrates the first WLAN AP according to the correspondence between the identifier of the first WLAN AP and the identifier of the WLAN AP integrated by the preset first cellular network site. Alternatively, the UE may determine, according to the indication information of the first WLAN identifier in the information of the first WLAN AP, that the first cellular network station integrates the first WLAN AP.
  • the identifier of the accessible WLAN AP pre-configured by the UE 104 includes only the identity of the WLAN AP 102 integrated on the cellular network site small cell base station 101, and the UE 104 receives the small cell base station 101 and generates
  • the information of the WLAN AP that is sent includes the identifier of the WLAN AP 102 and the identifier of the WLAN AP 103.
  • the UE can determine to access the WLAN AP 102 according to the identifier of the pre-configured WLAN AP that can be accessed.
  • the information of the WLAN AP generated and transmitted by the small cell base station 101 includes the identifier of the WLAN AP 102 and the identifier of the WLAN AP 103, and the corresponding indication information is added to indicate whether the WLAN AP is integrated in the small cell base station 101 or indicates the WLAN.
  • the AP is turned on, as indicated by the indication information "11" indicating that the WLAN AP 102 is a WLAN AP integrated in the small cell base station 101
  • the WLAN AP 102 is turned on
  • the indication information "10" indicates that the WLAN AP 103 is not integrated in the small cell base station 101.
  • the WLAN AP, the WLAN AP 102 is turned on, and the UE is determined to access the WLAN AP 102 by indicating the information.
  • the UE preferentially determines to access the WLAN AP integrated on the cellular site.
  • the UE may also determine to access the first cellular network.
  • a WLAN AP placed in the vicinity of the site.
  • the transmit power information of the first WLAN AP may include at least one of: a transmit power value of the first WLAN AP, a transmit power level of the first WLAN AP, and a transmit power of the first WLAN AP and the first cellular network.
  • the ratio or offset of the transmit power of the site and many more. It should be understood that embodiments of the invention are not limited thereto.
  • the UE may determine, according to the transmit power information of the first WLAN AP, the coverage of the first WLAN AP, and determine, according to the signal measurement value of the first cell site, the location of the UE, according to the coverage of the first WLAN AP. And the location where the UE is located determines that the location where the UE is located is within the coverage of the first WLAN AP.
  • the UE determines Access the first WLAN AP.
  • the value (or level) of the transmit power of the first WLAN AP is greater than a certain threshold, or the ratio of the transmit power value of the first WLAN AP to the transmit power value of the first cell site is greater than a certain ratio, or The offset value of the transmit power value of the first WLAN AP and the transmit power value of the first cell site is less than a certain threshold.
  • the thresholds or thresholds of the decision may be set in advance on the UE or may be sent by the network policy entity to the UE.
  • the UE may estimate the location where the UE is located according to the transmit power of the first cell site and the received signal strength of the first cell site, and the UE may determine, by using the transmit power information of the WLAN AP, the WLAN AP integrated at the first cell site.
  • the effective coverage (such as the UE can receive the signal strength of the WLAN AP is greater than a certain signal threshold, such as -65 dBm or more), and determine whether the location of the UE is within the effective coverage of the WLAN AP integrated by the first cellular site.
  • the UE may determine whether the current location of the UE is within the effective coverage of the WLAN AP by using the geographic location of the WLAN AP and the transmit power information of the WLAN AP.
  • the UE may receive other WLAPAP information in addition to the information of the first WLAN AP generated and sent by the first cellular network station, that is, the UE receives and generates the first cellular network site.
  • the information of the at least one WLAN AP, the information of the at least one WLAN AP includes the information of the first WLAP AP.
  • the ratio of the transmit power of the first WLAN AP to the transmit power of the first cellular network site is the largest of the ratio of the transmit power of the plurality of WLAN APs to the transmit power of the first cellular network site.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the smallest.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the largest.
  • the UE 104 may first determine the transmit power of the small cell base station 101 according to the type of the cell site in which it is located, and estimate the UE 104 according to the measured signal strength of the downlink signal received by the small cell base station 101.
  • the location of the location of the UE 104 can be determined based on the transmission power information of the WLAN AP 102.
  • the size of the coverage of the WLAN AP 102 can be determined according to the transmit power value (eg, 500 mW) or level of the WLAN AP 102.
  • the UE 104 can The distance between the location where the UE 104 is located and the WLAN AP 102 is estimated to determine whether the location where the UE is located is within the effective coverage of the WLAN AP 102. Similarly, the UE 104 can determine whether the location where the UE 104 is located is within the effective coverage of the WLAN AP 103 based on the transmit power information of the WLAN AP 103 and the location information of the WLAN AP 103.
  • the UE 104 may select the WLAN AP 102 integrated on the small cell base station 101, or may select a WLAN AP with a larger transmit power value.
  • This embodiment of the present invention is not limited thereto.
  • the UE determines, according to the transmit power information of the first WLAN AP, whether the location where the UE is located is within the coverage of the first WLAN AP, and accesses the first WLAN AP with good signal quality, thereby ensuring the communication quality of the user. And improving the success rate of accessing the WLAN AP, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the information of the first WLAN AP may further include resource usage information of the first WLAN AP, where the resource usage information of the first WLAN AP includes at least one of the following: air interface resource information of the first WLAN AP, the first WLAN AP The backhaul bandwidth information, the CPU (Central Processing Unit) processing resource information of the first WLAN AP, and the connection capacity information of the first WLAN AP.
  • the resource usage information of the first WLAN AP includes at least one of the following: air interface resource information of the first WLAN AP, the first WLAN AP The backhaul bandwidth information, the CPU (Central Processing Unit) processing resource information of the first WLAN AP, and the connection capacity information of the first WLAN AP.
  • the UE determines that the unused resource of the first WLAN AP meets the resource requirement of the UE, and specifically includes:
  • the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; the percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resources is greater than the second ratio threshold; the first WLAN AP is idle.
  • the percentage of the backhaul bandwidth to the total backhaul bandwidth is greater than the third ratio threshold; and the percentage of the connection capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold. and many more.
  • the UE may determine whether to access the first WLAN AP according to the maximum value of the used resources in the resource usage information of the first WLAN AP, or the minimum value of the unused resources as a percentage of the total resources.
  • the CPU processing resources used by the first WLAN AP account for the total
  • the maximum value of the percentage of CPU processing resources is less than the first ratio threshold, or the connection capacity used by the first WLAN AP (which may be expressed as the number of UEs connected to the AP) is less than the maximum percentage of the total connection capacity.
  • the four-threshold threshold, or the minimum value of the air interface resource that is idle by the first WLAN AP in the percentage of the total air interface resource is greater than the second ratio threshold, and the like.
  • the threshold of the decision may be preset to the UE, or may be sent by the network policy entity to the UE.
  • the UE can consider the comprehensive resource usage information of the WLAN AP, that is, the multiple of the resource usage information.
  • the UE determines, according to the resource usage information of the first WLAN AP, whether the unused resources of the first WLAN AP meet the resource requirements of the UE, and the access network resource uses a smaller WLAN AP, thereby ensuring the quality of the user and improving the service quality of the user.
  • User experience and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving system resources and saving power consumption of the UE. .
  • the WLAN access mode that can be supported by the UE may be pre-configured in the UE, or may be sent by the network policy entity to the UE.
  • the UE determines, according to the information about the WLAN access mode supported by the first WLAN AP, that the capability of the UE supports the WLAN access mode supported by the first WLAN AP, and specifically includes:
  • the UE determines the capability of the UE to support the first WLAN according to the correspondence between the WLAN access mode supported by the first WLAN AP and the WLAN AP access mode (which may be pre-set or delivered by the network policy entity) stored in the UE.
  • WLAN access mode supported by the AP which may be pre-set or delivered by the network policy entity
  • WLAN access mode (that is, the way the UE accesses the WLAN), such as I-WLAN (WLAN Interworking) defined by 3GPP, I-WLAN mobility, non-trusted access S2b, S2c, trusted access S2a I (Rel-11) ) and S2a II (Rel-12) and so on.
  • I-WLAN WLAN Interworking
  • the way in which UEs with different capabilities access the WLAN is different. If the WLAN network of the operator supports only one or several access modes, and the UE does not support any access mode supported by the WLAN network, the UE cannot access the WLAN AP.
  • the WLAN access mode supported by the capability of the UE 104 is S2b and S2c
  • the information of the WLAN AP includes the information of the WLAN access mode supported by the WLAN AP 102 and the WLAN access mode of the WLAN AP 103.
  • the information (such as the indication information, the UE 104 and the small cell base station 101 may pre-arrange the correspondence between the indication information and the WLAN access mode).
  • the UE 104 determines, according to the information of the WLAN access mode supported by the WLAN AP 102, that the WLAN access modes supported by the WLAN AP 102 are S2b, S2c, S2a I, and S2a II; According to the information of the WLAN access mode supported by the WLAN AP 103, it is determined that the WLAN access mode supported by the WLAN AP 103 has an I-WLAN.
  • the capabilities of the UE 104 support the WLAN access modes S2b and S2c supported by the WLAN AP 102, and the capabilities of the UE 104 do not support the WLAN access mode I-WLAN supported by the WLAN AP 103. Therefore, the UE 104 determines to access the WLAN AP 102, and can select the WLAN access mode of S2b or S2c.
  • the UE determines the WLAN access mode supported by the first WLAN AP according to the information of the WLAN access mode supported by the first WLAN AP, and the capability of the supported access mode of the UE determines the accessed first WLAN AP. Therefore, the success rate of accessing the WLAN AP is improved, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the information about the offload mode supported by the first WLAN AP obtained by the UE from the first cell site, that is, whether the WLAN network provides anNSWO (Non-Seamless WLAN Of fload) service or IFOM (IP Flow Mobility ( IP flow mobility) or MAPCON (Multiple Access PDN Connectivity), etc.
  • the UE determines whether to adopt WLAN AP offload according to its own capabilities and/or requirements of the accessed services.
  • the WLAN network provides the NSWO.
  • the service accessed by the UE does not need to ensure the continuity of the service, and the Internet can provide the service accessed by the UE, the UE can select to access the first WLAN AP and use the NSWO to access the service.
  • the WLAN network When the WLAN network supports the MAPCON, the WLAN network supports the MAPCON.
  • the UE When the service provider packet core network provides services for the UE to access, the UE may choose to access the first WLAN AP and use MAPCON to access the service; when the WLAN network supports the IFOM traffic distribution mode, and the UE accesses the service.
  • the service continuity is required, and the WLAN network and the UE support the IFOM, the UE may select to access the first WLAN AP.
  • IP flow mobility access service By way of IP flow mobility access service.
  • the UE determines the offload mode supported by the first WLAN AP according to the information about the offload mode supported by the first WLAN AP, and the UE supports the offloading capability and/or the request of the access service to determine the accessed first WLAN AP. Therefore, the efficiency of accessing the WLAN AP is improved, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the PLMN ID that can be supported by the capability of the UE may be pre-configured in the UE, or It is sent by the network policy entity to the UE, and can also be configured by the operator in the SIM/USIM card.
  • the UE determines, according to the PLMN ID supported by the first WLAN AP, the capability of the UE to support the PLMN ID supported by the first WLAN AP, and specifically includes:
  • the UE determines, according to the correspondence between the PLMN ID supported by the first WLAN AP supported by the first WLAN AP and the PLMN ID stored in the UE, the capability of the UE to support the PLMN ID supported by the first WLAN AP.
  • the first cellular network site notifies the UE of the PLMN ID supported by the station, but the WLAN AP does not necessarily support the PLMN ID supported by the first cellular network site.
  • the information of the WLAN AP may include a PLMN ID list supported by the first cellular network site, and an indication bit is correspondingly added for each PLMN ID in the PLMN ID list to indicate which WLAN AP or the PLMN ID is also supported by the UE.
  • the first WLAN AP accessed by the UE is determined according to the indication, and the capability of the UE also supports the PLMN ID supported by the first WLAN AP. In this way, after the UE accesses the first WLAN AP, it can access or roam to the PLMN.
  • the UE may receive the BCCH sent by the first cellular network site.
  • the BCCH carries information of the first WLAN AP generated by the first cellular network site.
  • the UE can obtain the information of the first WLAN AP by reading the BCCH sent by the first cellular network station.
  • the UE when the UE is in a connected state and connected to the second cellular network site, the UE may receive and read the first according to the guidance of the second cellular network site.
  • the process of guiding the UE by the specific second cellular network site may refer to the prior art, and details are not described herein again.
  • the UE may send a first RRC (Radio Resource Control) message to the second cell site, where the first RRC message is used to notify the second cell network station that the UE can access the first WLAN AP.
  • RRC Radio Resource Control
  • UE 304 is coupled to a second cellular network site (macro base station eNB 303 shown in Figure 3) for transmission of traffic data.
  • An interaction diagram of the UE 304 acquiring information of the first WLAN AP may be schematically shown in FIG. 4:
  • Step 401 The macro eNB 303 sends the measurement configuration of the target cell site (the home base station HeNB 301 shown in FIG. 3) to the UE 304 in the measurement configuration message (such as the RRC connection reconfiguration message), and the UE 304 performs the HeNB 301 on the HeNB 301. Measure to get a measurement report. Measurements received by the UE
  • the configuration message includes the physical cell ID of the HeNB 301 (such as PCI (physical cell identity) of LTE or PSC (Primary Scrambling Code) of UMTS).
  • Step 402 The macro base station eNB 303 instructs the UE 304 to read the system message BCCH of the HeNB 301 according to the physical cell ID of the HeNB 301.
  • Step 403 The UE reads a system message broadcast by the HeNB 301, such as a CGI (Cell Global Identifier), a TAI (Tracking Area Identifier), or a CSG ID (Closed Subscriber Group ID) in the (BCCH).
  • the information of the first WLAN AP (WLAN AP 302) is further read from the system information of the HeNB 301 of the integrated WLAN AP 302, in addition to the information required in the measurement report.
  • the measurement report of the HeNB 301 may not be reported to the macro base station eNB 303.
  • the UE when the UE is in a connected state and connected to the first cellular network site, in step 201, the UE may receive the first cellular network site to send
  • the second RRC message carries the information of the first WLAN AP generated by the first cellular network site. That is, the UE may obtain the information of the first WLAN AP by reading the second RRC message sent by the first cellular network site.
  • the second RRC message may be a message such as an RRC connection reconfiguration or an RRC connection setup (RRC Connection Setup) or an RRC connection re-establishment. .
  • the UE may send a third RRC message to the first cellular network station, where the third RRC message is used to notify the first cellular network station that the UE can access the first WLAN AP.
  • Figure 5 is a flow diagram of a method of implementing interoperability between a cellular network and a wireless local area network in accordance with one embodiment of the present invention.
  • the method of Fig. 5 is performed by a cellular network site (e.g., an eNB of LTE or a BTS of CDMA, etc.) and corresponds to the method of Fig. 2, and thus the description overlapping with the embodiment of Fig. 2 will be omitted as appropriate.
  • a cellular network site e.g., an eNB of LTE or a BTS of CDMA, etc.
  • the first cellular network site generates information about the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP, including integrating the WLAN AP on the first cellular network site or deploying the WLAN in the vicinity of the first cellular network site.
  • the first cellular network station sends the information of the first WLAN AP to the UE, to instruct the UE to determine whether to access the first WLAN AP according to the information of the first WLAN AP, and obtain access to the first WLAN AP.
  • the first WLAN AP sends the information of the first WLAN AP to the UE, to instruct the UE to determine whether to access the first WLAN AP according to the information of the first WLAN AP, and obtain access to the first WLAN AP.
  • the first cellular network station generates information of the first WLAN AP, and the first cellular network station sends the information of the first WLAN AP to the UE.
  • the UE determines whether to access the first WLAN AP according to the information of the first WLAN AP, and accesses the first WLAN AP if it is determined to access the first WLAN AP. Therefore, the UE does not need to receive the information about the access network from the ANDSF entity of the core network user plane, directly receives the information of the WLAN AP generated and sent by the first cellular network site, reduces the delay, and improves the efficiency.
  • the UE determines to access the WLAN module of the UE and access the first WLAN AP according to the information of the received WLAN AP, so as to avoid continuous scanning and attempting access, thereby effectively Save system resources and save UE power consumption.
  • the information of the first WLAN AP may include at least one of the following: an identifier of the first WLAN AP, a transmit power information of the first WLAN AP, resource usage information of the first WLAN AP, and a first WLAN.
  • Information about the WLAN access mode supported by the AP, information about the offload mode supported by the first WLAN AP, and the PLMN ID supported by the first WLAN AP is not limited thereto.
  • the identifier of the first WLAN AP is used by the UE to determine whether the first WLAN AP integrates the first WLAN AP, and the transmit power information of the first WLAN AP is used by the UE to determine whether the location where the UE is located is located in the first WLAN AP.
  • the resource usage information of the first WLAN AP is used by the UE to determine that the unused resources of the first WLAN AP meet the resource requirements of the UE, and the information of the WLAN access mode supported by the first WLAN AP is used by the UE to determine the UE.
  • the capability supports the WLAN access mode supported by the first WLAN AP
  • the information about the offload mode supported by the first WLAN AP is used by the UE to determine whether the offload mode supported by the first WLAN AP meets the requirements of the service accessed by the UE
  • the first The PLMN ID supported by the WLAN AP is used by the UE to determine whether the capability of the UE supports the PLMN ID supported by the first WLAN AP.
  • the UE determines to access the first WLAN AP.
  • the UE determines to access the first WLAN AP.
  • an embodiment of how the UE determines the foregoing at least one condition may refer to the foregoing, and details are not described herein again.
  • the identifier of the first WLAN AP may be one or more of a BSSID, an SSID, a HESSID, and an OUI/OI.
  • the BSSID is the MAC address of the AP and is the globally unique identifier of the AP. Knowledge.
  • the SSID is the service set identifier of the operator's WLAN and identifies the operator's WLAN network.
  • the OUI/OI is a unique identifier of the WLAN roaming organization. The UE can determine whether the WLAN AP corresponding to the OUI/OI can roam the home network (providing the WLAN subscription network) through the OUI/OI.
  • the identifier of the WLAN AP that the UE can access is pre-configured in the UE, or is sent to the UE by the receiving network side device (such as the network policy entity ANDSF), or configured by the operator in the SIM/USIM card, and so on. It should be understood that the manner in which the present invention learns the identity of the WLAN AP that can be accessed by the UE is not limited.
  • the transmit power information of the first WLAN AP may include at least one of: a transmit power value of the first WLAN AP, a transmit power level of the first WLAN AP, and a transmit power of the first WLAN AP and the first cellular network.
  • the ratio or offset of the transmit power of the site and many more. It should be understood that embodiments of the invention are not limited thereto.
  • the first cellular network station generates and sends information of the first WLAN AP to the UE, and may also generate and send information of other WLAP APs to the UE. That is, the first cellular network site generates and transmits information of at least one WLAN AP to the UE, and the information of the at least one WLAN AP includes information of the first WLAP AP. Further, when the UE is located in the coverage of the multiple WLAN APs according to the location where the WLAN AP's transmit power information is located, preferably, the UE determines that the accessed first WLAN AP is the largest transmit power value among the multiple WLAN APs; Alternatively, the transmit power level of the first WLAN AP is the highest of the transmit power levels of the plurality of WLAN APs.
  • the ratio of the transmit power of the first WLAN AP to the transmit power of the first cellular network site is the largest of the ratio of the transmit power of the plurality of WLAN APs to the transmit power of the first cellular network site.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the smallest.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the largest.
  • the information about the first WLAN AP that is sent by the first cellular network station to the UE includes the transmit power information of the first WLAN AP, and the UE determines, according to the transmit power information of the first WLAN AP, whether the location where the UE is located is located in the WLAN. Within the coverage of the AP, access the WLAN AP with better signal quality to ensure the communication quality of the user and improve access to the WLAN AP. Success rate, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, avoiding continuous scanning and attempting access, thereby effectively saving system resources and saving UE power consumption. .
  • the information of the first WLAN AP may further include resource usage information of the first WLAN AP, where the resource usage information of the first WLAN AP includes at least one of the following: air interface resource information of the first WLAN AP, the first WLAN AP The backhaul bandwidth information, the CPU processing resource information of the first WLAN AP, and the connection capacity information of the first WLAN AP. It should be understood that the embodiments of the present invention are not limited thereto.
  • the method includes: the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; the percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resources is greater than the second ratio threshold; The percentage of the backhaul bandwidth of the AP idle to the total backhaul bandwidth is greater than the third ratio threshold; and the percentage of the connection capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold. and many more.
  • a WLAN AP avoids continuous scanning and attempted access, thereby effectively saving system resources and saving UE power consumption.
  • the WLAN access mode supported by the first WLAN (that is, the manner in which the UE accesses the WLAN), such as I-WLAN defined by the 3GPP, I-WLAN mobility, S2b, S2c, S2a I, and S2a II.
  • I-WLAN defined by the 3GPP
  • I-WLAN mobility I-WLAN mobility
  • S2b, S2c, S2a I, and S2a II The way in which UEs with different capabilities access the WLAN is also different. If the WLAN network of the carrier supports only one or several access modes, and the UE does not support any access mode supported by the WLAN network, the UE cannot access the WLAN AP.
  • the information of the first WLAN AP that is sent by the first eNB to the UE includes the WLAN access mode information supported by the first WLAN AP, and the UE determines the WLAN access mode according to the information supported by the first WLAN AP.
  • the WLAN access mode supported by the WLAN AP the capability of the UE supports determining the WLAN access mode supported by the accessed first WLAN AP, Therefore, the success rate of accessing the WLAN AP is improved, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the information about the offload mode supported by the first WLAN AP obtained by the UE from the first cell site, that is, whether the WLAN network provides the NSWO service or IFOM or MAPCON, and the like. Further, the UE determines whether to use the WLAN AP offload according to its own capabilities and/or the requirements of the services accessed.
  • the UE determines the offload mode supported by the first WLAN AP according to the information about the offload mode supported by the first WLAN AP, and the UE supports the offloading capability and/or the request of the access service to determine the accessed first WLAN AP. Therefore, the efficiency of accessing the WLAN AP is improved, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the first cellular network station may send a BCCH to the UE, where the BCCH carries information of the first WLAN AP generated by the first cellular network site. .
  • the UE can obtain the information of the first WLAN AP by reading the BCCH sent by the first cellular network site.
  • the UE is in an idle state and camps on the first cellular network site, or the UE is in a connected state and connected to the second cellular network site.
  • the first cellular network station may send a second RRC message to the UE, where the second RRC message carries information of the first WLAN AP generated by the first cellular network site, where the UE In the connected state and connected to the first cellular network site. That is to say, the UE can obtain the information of the WLAN AP by reading the second RRC message sent by the first cellular network station.
  • the second RRC message may be a message such as an RRC connection reconfiguration or an RRC connection establishment or an RRC connection reestablishment. It should be understood that the embodiment of the present invention is not limited thereto.
  • the first cellular network station learns that the UE can access the first WLAN AP by using the third RRC message sent by the UE.
  • FIG. 6 is a schematic flow chart of a process of implementing a method for interworking between a cellular network and a wireless local area network according to an embodiment of the present invention.
  • Step 601 Trigger the UE to access the WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the WLAN AP, including integrating the WLAN AP on the first cellular network site or at the first cellular network site
  • the WLAN AP is placed in the vicinity of the area.
  • the UE has data to be transmitted, and triggers the UE in the idle state to broadcast from the first cellular network site.
  • the system message BCCH reads the information of the WLAN AP.
  • the UE in the connected state and connected to the other cellular network site switches to the first cellular network site or the UE initiates a new service, triggering the system in which the connected UE broadcasts from the first cellular network site
  • the message BCCH reads the information of the WLAN AP.
  • the UE in the connected state and connected to the first cellular network station performs data transmission (such as initiating a new service), and triggers the UE in the connected state to read the WLAN from the second RRC message sent by the first cellular network station.
  • the second RRC message may be a message such as an RRC connection reconfiguration or an RRC connection establishment or an RRC connection reestablishment. It should be understood that the embodiment of the present invention is not limited thereto.
  • Step 602 The UE determines, according to the identifier of the WLAN AP, whether to access the WLAN AP.
  • the identifier of the WLAN AP may be one or more of a BSSID, an SSID, a HESSID, and an OUI/OI.
  • the BSSID is the MAC address of the AP and is the globally unique identifier of the AP.
  • the SSID is the service set identifier of the operator's WLAN and identifies the carrier's WLAN network.
  • the OUI/OI is a unique identifier of the WLAN roaming organization. The UE can determine whether the WLAN AP corresponding to the OUI/OI can roam the home network (providing the WLAN subscription network) through the OUI/OI.
  • the identifier of the WLAN AP that the UE can access is pre-configured in the UE, or is sent to the UE by the receiving network side device (such as the network policy entity ANDSF), or configured by the operator in the SIM/USIM card, and so on. It should be understood that the manner in which the UE learns the identity of the accessible WLAN AP is not limited.
  • the UE may determine, according to the correspondence between the identifier of the WLAN AP in the information of the received WLAN AP and the identifier of the WLAN AP that is pre-configured in the UE, the UE determines whether the WLAN AP is reachable by the UE. Incoming WLAN AP.
  • the UE performs step 609, and does not open the WLAN module of the UE. If the WLAN AP is a WLAN AP that the UE can access, the UE optionally performs step 603.
  • Step 603 The UE determines whether the WLAN AP is a WLAN integrated by the first cellular network base station.
  • the identifier of the accessible WLAN AP is only included in the first bee.
  • the accessible WLAN AP determined by the UE in step 602 also belongs to the WLAN AP integrated by the first cellular network base station.
  • the UE may determine, according to the indication information of the identifier of the WLAN AP in the WLAN AP information, whether it is a WLAN AP integrated by the first cellular network base station. For specific examples, reference may be made to the above, and details are not described herein again.
  • step 609 determines not to access the WLAN AP; if the UE determines the WLAN corresponding to the identifier of the WLAN AP
  • the AP is a WLAN AP integrated by the first cellular network base station.
  • step 604 is performed.
  • Step 604 The UE determines whether the PLMN can be accessed or roamed through the WLAN AP.
  • the UE may determine a PLMN ID supported by the capability of the UE, and the UE further receives an indication of the PLMN ID sent by the first cellular network base station, and determines, according to the indication, whether the WLAN AP supports the PLMN ID.
  • the UE determines that the PLMN can be accessed or roamed through the WLAN AP.
  • the PLMN ID that can be supported by the UE may be pre-configured in the UE, or may be sent by the network policy entity to the UE, or may be configured by the operator in the SIM/USIM card.
  • step 609 determines not to access the WLAN AP; if the UE determines that the PLMN can be accessed or roamed through the WLAN AP, optionally, step 606 is performed.
  • Step 606 The UE determines whether the capability of the UE supports the access mode supported by the WLAN AP.
  • the WLAN access mode such as I-WLAN defined by 3GPP, I-WLAN mobility, S2b, S2c, S2a l, and S2a II.
  • the UE can determine whether the capability of the UE supports the WLAN access mode supported by the WLAN AP according to the WLAN access mode supported by the WLAN AP in the WLAN AP information.
  • the WLAN access mode that can be supported by the UE may be pre-configured in the UE or may be sent by the network policy entity to the UE.
  • step 609 determines not to access the WLAN AP. If the UE determines that the capability of the UE supports at least one access mode supported by the WLAN AP, step 606 is optionally performed. In addition, the UE may further determine whether to adopt the WLAN AP offload according to the information of the offloading mode supported by the first WLAN AP in the WLAN AP information, and the capability of the UE and the requirements of the accessed service. . If the UE determines that the WLAN AP is unable to provide the offloading service, the UE performs step 609; if the UE determines that the WLAN AP can provide the offloading service, optionally, the UE Step 606 is performed.
  • step 606 can be directly performed without performing steps 601-606.
  • Step 606 The UE determines whether the location where the UE is located is within the effective coverage of the WLAN AP.
  • the UE may estimate the location where the UE is located according to the transmit power of the first cell site and the received signal strength of the first cell site, and determine, by using transmit power information of the WLAN AP, whether the location where the UE is located is at the WLAN AP. Within the effective coverage.
  • the UE determines that the transmit power value (or level) of the WLAN AP is greater than a certain threshold, or the ratio of the transmit power value of the WLAN AP to the transmit power value of the first cell site is greater than a certain ratio, or When the value of the offset value of the transmit power value of the WLAN AP and the transmit power value of the first cell site is less than a certain threshold, the UE determines that the location where the UE is located is within the effective coverage of the WLAN AP.
  • the thresholds or thresholds may be pre-set on the UE or sent to the UE by the network policy entity.
  • the UE determines whether the location of the UE is located in the effective coverage of the WLAN AP as a decision condition for accessing the WLAN AP, and can accurately select a WLAN AP with a good access signal quality, thereby ensuring the communication quality of the user. Improve the success rate of accessing WLAN APs.
  • step 609 determines not to access the WLAN AP. If the UE determines that the location where the UE is located is within the effective coverage of the WLAN AP, step 607 is optionally performed.
  • Step 607 The UE determines whether the resource usage of the WLAN AP meets the condition.
  • the resource usage information of the WLAN AP includes at least one of the following: the air interface resource information of the WLAN AP, the backhaul bandwidth information of the WLAN AP, the CPU processing resource information of the WLAN AP, and the connection capacity information of the WLAN AP. It should be understood that the embodiments of the present invention are not limited thereto.
  • the UE determines that the maximum value of the CPU processing resources used by the WLAN AP in the total CPU processing resources is less than the first ratio threshold, and the connected capacity of the WLAN AP accounts for the largest percentage of the total connection capacity.
  • the value is less than the fourth ratio threshold, or the minimum value of the air interface resource that is idle in the WLAN AP is greater than the second ratio threshold, or the percentage of the backhaul bandwidth of the WLAN AP that is idle is greater than the total backhaul bandwidth.
  • the threshold the UE determines that the unused resources of the WLAN AP meet the resource requirements of the UE, that is, the WLAN AP.
  • the resource usage meets the conditions. It should be understood that the UE may determine whether the resource usage of the WLAN AP satisfies the condition by considering one or more of the resource usage information of the WLAN AP, which is not limited by the implementation of the present invention.
  • step 609 determines not to access the WLAN AP. If the resource usage of the WLAN AP meets the condition, step 608 is optionally performed.
  • steps 602 to 607 in the embodiment of the present invention is not limited, and steps 602 to 607 do not limit each step to be performed. Alternatively, one or more of steps 602 to 607 may be selected.
  • Step 608 The UE determines to access the WLAN AP.
  • Step 610 The UE switches the data service to the WLAN AP, or the WLAN AP and the first cellular network site provide a shunt service for the UE.
  • the WLAN module before the WLAN UE accesses the AP, the WLAN module and open the UE to access the WLAN AP 0
  • the UE may send a third RRC message to the first cellular network site, where the third RRC message is used to notify the first cellular network station that the UE can access WLAN AP.
  • the UE may send the first RRC to the second cellular site, where the first RRC message is used to notify the second cellular network station that the UE can access WLAN AP.
  • Step 609 The UE determines not to access the WLAN AP.
  • the UE does not need to receive information about the access network from the ANDSF entity of the core network user plane, and directly receives the information of the WLAN AP generated and sent by the first cellular network site, thereby reducing delay and improving efficiency.
  • the UE determines to access the WLAN module of the UE and access the WLAN AP according to the information of the received WLAN AP, so as to avoid continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • FIG. 7 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • the UE 600 includes a receiving unit 701, a determining unit 702, and an access unit 703.
  • the receiving unit 701 is configured to: information about the first WLAN AP that is generated and sent by the first cellular network site.
  • the determining unit 702 is configured to determine whether to access the first WLAN AP according to the information of the first WLAN AP received by the receiving unit 701.
  • the access unit 703 is configured to access the first WLAN AP if the determining unit 702 determines to access the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP, including integrating the first WLAN AP on the first cellular network site or in the adjacent area of the first cellular network site. Put the first WLAN AP.
  • the UE does not need to receive the information about the access network from the ANDSF entity of the core network user plane, directly receives the information of the first WLAN AP generated and sent by the first cellular network site, reduces the delay, and improves the efficiency.
  • the UE 700 can implement operations related to the UE in the embodiments of FIG. 1 to FIG. 6, and therefore, in order to avoid repetition, details are not described in detail.
  • the UE may further include an opening unit 704, and the opening unit 704 is configured to open a WLAN module of the UE.
  • the opening unit 704 opens the WLAN module of the UE and accesses the first WLAN AP if the determining unit 702 determines to access the first WLAN AP according to the information of the received WLAN AP, so as to avoid continuous scanning and attempting to connect. In, thereby effectively saving system resources and saving the power consumption of the UE.
  • the information of the first WLAN AP that is received by the receiving unit 701 may include at least one of the following: an identifier of the first WLAN AP, a transmit power information of the first WLAN AP, and a resource of the first WLAN AP.
  • the identifier of the first WLAN AP may be one or more of a BSSID, an SSID, a HESSID, and an OUI/OI.
  • the BSSID is the MAC address of the AP and is the global unique identifier of the AP.
  • the SSID is the service set identifier of the operator's WLAN, and identifies the operator's WLAN network.
  • the OUI/OI is a unique identifier of the WLAN roaming organization. The UE can determine whether the WLAN AP corresponding to the OUI/OI can roam the home network (providing the WLAN subscription network) through the OUI/OI.
  • the identifier of the WLAN AP that the UE can access is pre-configured in the UE, or is sent to the UE by the receiving network side device (such as the network policy entity ANDSF), or configured by the operator in the SIM/USIM card, and so on. It should be understood that the manner in which the present invention learns the identity of the WLAN AP that can be accessed by the UE is not limited.
  • the UE determines the first by the identifier of the first WLAN AP.
  • a WLAN AP is a WLAN AP that the UE can access.
  • the determining unit 702 determines that the following at least one condition is met, determining to access the first WLAN
  • the determining unit 702 determines that the first cellular network station integrates the first WLAN AP according to the identifier of the first WLAN AP; the determining unit 702 determines, according to the transmit power information of the first WLAN AP, that the location where the UE is located is within the coverage of the first WLAN AP; The determining unit 702 determines that the unused resource of the first WLAN AP meets the resource requirement of the UE according to the resource usage information of the first WLAN AP; the determining unit 702 determines that the capability of the UE supports the first according to the information of the WLAN access mode supported by the first WLAN AP.
  • the PLMN ID supported by the AP determines that the capability of the UE supports the PLMN ID supported by the first WLAN AP.
  • the determining unit 702 may be specifically configured to: determine, according to a correspondence between the identifier of the first WLAN AP and the identifier of the WLAN AP integrated by the preset first cellular network site, that the first cellular network site integrates the first WLAN AP.
  • the UE may determine, according to the indication information of the first WLAN identifier in the information of the first WLAN AP, that the first cellular network station integrates the first WLAN AP.
  • the transmit power information of the first WLAN AP may include at least one of: a transmit power value of the first WLAN AP, a transmit power level of the first WLAN AP, and a transmit power of the first WLAN AP and the first cellular network. The ratio or offset of the transmit power of the site. and many more. It should be understood that embodiments of the invention are not limited thereto.
  • the determining unit 702 may be specifically configured to: determine, according to the transmit power information of the first WLAN AP, the coverage of the first WLAN AP, and determine, according to the signal measurement value of the first cell site, the location of the UE, according to the first WLAN AP The coverage and the location where the UE is located determine that the location where the UE is located is within the coverage of the first WLAN AP.
  • the determining unit 702 determines to access the first WLAN AP. Further, the value (or level) of the transmit power of the first WLAN AP is greater than a certain threshold, or the ratio of the transmit power value of the first WLAN AP to the transmit power value of the first cell site is greater than a certain ratio, or The transmit power value of the first WLAN AP and the first bee The offset value of the transmit power value of the nest site is less than a certain threshold.
  • the thresholds or thresholds of the decision may be set in advance on the UE or may be sent by the network policy entity to the UE.
  • the determining unit 702 may estimate the location where the UE is located according to the transmit power of the first cell site and the received signal strength of the first cell site, and the determining unit 702 may determine, by using the transmit power information of the WLAN AP, the first cell site integration.
  • the effective coverage of the WLAN AP for example, the UE can receive the signal strength of the WLAN AP greater than a certain signal threshold, such as -65 dBm or more), and determine whether the location of the UE is at the WLAN AP integrated by the first cellular site. Within the effective coverage.
  • the determining unit 702 can determine whether the current location of the UE is within the effective coverage of the WLAN AP by using the geographic location of the WLAN AP and the transmit power information of the WLAN AP.
  • the receiving unit 701 is configured to receive information of other WLAP APs, in addition to receiving information of the first WLAN AP that is generated and sent by the first cellular network station, that is, the receiving unit 701 is specifically configured to: receive The information of the at least one WLAN AP generated and sent by the first cellular network site, where the information of the at least one WLAN AP includes the information of the first WLAP AP.
  • the determining unit 702 determines that the first WLAN AP that is accessed is the highest transmit power value of the plurality of WLAN APs; or the transmit power level of the first WLAN AP is the highest of the transmit power levels of the plurality of WLAN APs.
  • the determining unit 702 determines that the ratio of the transmit power of the accessed first WLAN AP to the transmit power of the first cellular network site is the largest of the ratio of the transmit power of the plurality of WLAN APs to the transmit power of the first cellular network site. Or, at first
  • the determining unit 702 determines that the offset value of the transmit power of the accessed first WLAN AP and the transmit power of the first cellular network site is the transmit of multiple WLAN APs. The smallest of the offset values of the power and the transmit power of the first cellular network site. Or, when the transmit power of the first WLAN AP is greater than the transmit power of the first cellular network site, the determining unit 702 determines that the transmit power of the accessed first WLAN AP and the transmit power of the first cellular network site are offset. The offset between the transmit power of the WLAN AP and the transmit power of the first cellular network site is the largest.
  • the UE determines, according to the transmit power information of the first WLAN AP, whether the location where the UE is located is within the coverage of the first WLAN AP, and accesses the first WLAN AP with good signal quality, thereby ensuring the communication quality of the user. And improving the success rate of accessing the WLAN AP, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and Save UE's power consumption.
  • the information about the first WLAN AP that is received by the receiving unit 701 may further include resource usage information of the first WLAN AP, where the resource usage information of the first WLAN AP includes at least one of the following: The air interface resource information of the WLAN AP, the backhaul bandwidth information of the first WLAN AP, the CPU processing resource information of the first WLAN AP, and the connection capacity information of the first WLAN AP. It should be understood that the embodiments of the present invention are not limited thereto.
  • the determining unit 702 may be specifically configured to: determine that the unused resources of the first WLAN AP meet the resource requirements of the UE when the at least one condition is met, specifically:
  • the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; the percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resources is greater than the second ratio threshold; the first WLAN AP is idle.
  • the percentage of the backhaul bandwidth to the total backhaul bandwidth is greater than the third ratio threshold; and the percentage of the connection capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold. and many more.
  • the determining unit 702 may be configured to: determine whether to access the first according to a maximum value of the used resources in the resource usage information of the first WLAN AP, or a minimum value of the unused resources as a percentage of the total resources.
  • WLAN AP For example, the maximum value of the CPU processing resources used by the first WLAN AP as a percentage of the total CPU processing resources is less than the first ratio threshold, or the connection capacity used by the first WLAN AP (may be represented as a UE connected to the AP) The maximum value of the percentage of the total connection capacity is less than the fourth ratio threshold, or the minimum value of the air interface resource that is idle by the first WLAN AP to the total air interface resource is greater than the second ratio threshold, and so on.
  • the threshold of the decision may be preset to the UE, or may be sent by the network policy entity to the UE.
  • the determining unit 702 can consider the comprehensive resource usage information of the WLAN AP, that is, the plurality of resource usage information.
  • the UE determines, according to the resource usage information of the first WLAN AP, whether the unused resources of the first WLAN AP meet the resource requirements of the UE, and the access network resource uses a smaller WLAN AP, thereby ensuring the quality of the user and improving the service quality of the user.
  • User experience and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving system resources and saving power consumption of the UE. .
  • the WLAN access mode supported by the capability of the UE may be pre-configured in the UE, or may be sent to the UE by the network policy entity.
  • the determining unit 702 may be specifically configured to: according to the WLAN access mode supported by the first WLAN AP and the WLAN AP access mode stored in the UE ( The capability of the UE is supported by the first WLAN AP to support the WLAN access mode supported by the first WLAN AP.
  • WLAN access mode (that is, the way the UE accesses the WLAN), such as I-WLAN (WLAN Interworking) defined by 3GPP, I-WLAN mobility, non-trusted access S2b, S2c, trusted access S2a l (Rel-11) ) and S2a II (Rel-12) and so on.
  • I-WLAN WLAN Interworking
  • the way in which UEs with different capabilities access the WLAN is different. If the WLAN network of the operator supports only one or several access modes, and the UE does not support any access mode supported by the WLAN network, the UE cannot access the WLAN AP.
  • the UE determines the WLAN access mode supported by the first WLAN AP according to the information of the WLAN access mode supported by the first WLAN AP, and the capability of the UE supports determining the WLAN access supported by the accessed first WLAN AP.
  • the method further improves the success rate of accessing the WLAN AP, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively Save system resources and save UE power consumption.
  • the information about the offload mode supported by the first WLAN AP obtained by the receiving unit 701 from the first cell site specifically includes: whether the WLAN network provides information such as a NSWO service or an IFOM or a MAPCON.
  • the determining unit 702 can also be configured to determine whether to use the WLAN AP offload according to its own capabilities and/or the requirements of the accessed services.
  • the UE determines the offload mode supported by the first WLAN AP according to the information about the offload mode supported by the first WLAN AP, and the UE supports the offloading capability and/or the request of the access service to determine the accessed first WLAN AP. Therefore, the efficiency of accessing the WLAN AP is improved, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the PLMN ID that can be supported by the UE may be pre-configured in the UE, or may be sent by the network policy entity to the UE, or may be configured by the operator in the SIM/USIM card.
  • the determining unit 702 may be specifically configured to: determine, according to the correspondence between the PLMN ID supported by the first WLAN AP supported by the first WLAN AP and the PLMN ID stored in the UE, the capability of the UE to support the PLMN ID supported by the first WLAN AP.
  • the receiving unit 701 may be specifically configured to: receive the BCCH sent by the first cellular network site,
  • the BCCH carries information of the first WLAN AP generated by the first cellular network site.
  • the UE can obtain the information of the first WLAN AP by reading the BCCH sent by the first cellular network site.
  • the receiving unit 701 when the UE is in a connected state and connected to the second cellular network site, the receiving unit 701 may be specifically configured to: receive and read the first cellular network site according to the instruction of the second cellular network site.
  • the transmitted BCCH, the BCCH carries the information of the first WLAN AP generated by the first cellular network site.
  • the process of guiding the UE by the specific second cellular network site may refer to the prior art, and details are not described herein again.
  • the UE may further include a first sending unit 705, configured to: send, by the second cell site, a first RRC message, where the first RRC message is used to notify the second cellular network station that the UE can access the first A WLAN AP.
  • the receiving unit 701 may be specifically configured to: when the UE is in a connected state and connected to the first cellular network site, receive a second RRC message sent by the first cellular network station, and the second RRC message Carrying information of the first WLAN AP generated by the first cellular network site.
  • the UE may further include a second sending unit 706, where the second sending unit 706 is configured to: send a third RRC message to the first cellular network station, where the third RRC message is used to notify the first cell.
  • the network site UE can access the first WLAN AP.
  • FIG. 8 is a structural block diagram of a first cellular network site according to an embodiment of the present invention.
  • the first cellular network site 800 includes a generating unit 801 and a transmitting unit 802.
  • the generating unit 801 is configured to generate information of the first WLAN AP of the WLAN access point.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP, including integrating the WLAN AP on the first cellular network site or deploying the WLAN in the vicinity of the first cellular network site.
  • the situation of the AP is not limited to integrating the WLAN AP on the first cellular network site or deploying the WLAN in the vicinity of the first cellular network site.
  • the sending unit 802 is configured to send, to the UE, information about the first WLAN AP generated by the generating unit, to instruct the UE to determine whether to access the first WLAN AP according to the information of the WLAN AP, and determine to access the first WLAN AP, Enter the first WLAN AP.
  • the first cellular network station generates information of the first WLAN AP, and the first cellular network station sends information of the first WLAN AP to the UE.
  • the UE determines whether to access the first WLAN AP according to the information of the first WLAN AP, and determines to access the first WLAN AP. Next, access the first WLAN AP. Therefore, the UE does not need to receive the information about the access network from the ANDSF entity of the core network user plane, directly receives the information of the WLAN AP generated and sent by the first cellular network site, reduces the delay, and improves the efficiency.
  • the UE determines to access the WLAN module of the UE and access the first WLAN AP according to the information of the received WLAN AP, so as to avoid continuous scanning and attempting access, thereby effectively Save system resources and save UE power consumption.
  • the first cellular network site 800 may implement the operations of the first cellular network site in the embodiment of Figures 1 through 6, and thus will not be described in detail to avoid redundancy.
  • the information of the first WLAN AP sent by the sending unit 802 may include at least one of the following: an identifier of the first WLAN AP, a transmit power information of the first WLAN AP, and a resource usage of the first WLAN AP.
  • the identifier of the first WLAN AP is used by the UE to determine whether the first WLAN AP integrates the first WLAN AP, and the transmit power information of the first WLAN AP is used by the UE to determine whether the location where the UE is located is located in the first WLAN AP.
  • the resource usage information of the first WLAN AP is used by the UE to determine that the unused resources of the first WLAN AP meet the resource requirements of the UE, and the information of the WLAN access mode supported by the first WLAN AP is used by the UE to determine the UE.
  • the capability supports the WLAN access mode supported by the first WLAN AP
  • the information about the offload mode supported by the first WLAN AP is used by the UE to determine whether the offload mode supported by the first WLAN AP meets the requirements of the service accessed by the UE
  • the first The PLMN ID supported by the WLAN AP is used by the UE to determine whether the capability of the UE supports the PLMN ID supported by the first WLAN AP.
  • the UE determines a first access particular WLAN AP 0, UE how to determine at least one condition of the above-described embodiments with reference to the above-described embodiments may be not be repeated herein.
  • the identifier of the first WLAN AP may be one or more of a BSSID, an SSID, a HESSID, and an OUI/OI.
  • the BSSID is the MAC address of the AP and is the global unique identifier of the AP.
  • the SSID is the service set identifier of the operator's WLAN and identifies the operator's WLAN network.
  • the OUI/OI is a unique identifier of the WLAN roaming organization. The UE can determine whether the WLAN AP corresponding to the OUI/OI can roam the home network (providing the WLAN subscription network) through the OUI/OI.
  • the identifier of the WLAN AP that the UE can access can be pre-configured in the UE, or
  • the network-side device (such as the network policy entity ANDSF) is sent to the UE, or is configured by the operator in the SIM/USIM card, and so on. It should be understood that the manner in which the present invention learns the identity of the WLAN AP that can be accessed by the UE is not limited.
  • the transmit power information of the first WLAN AP may include at least one of: a transmit power value of the first WLAN AP, a transmit power level of the first WLAN AP, and a transmit power of the first WLAN AP and the first cellular network.
  • the ratio or offset of the transmit power of the site and many more. It should be understood that embodiments of the invention are not limited thereto.
  • the sending unit 802 sends the information of the first WLAN AP generated by the generating unit 801 to the UE, and may further send information about other WLAPAPs generated by the generating unit 801. That is, the sending unit 802 sends the information of the at least one WLAN AP generated by the generating unit 801 to the UE, and the information of the at least one WLAN AP includes the information of the first WLAP AP.
  • the UE determines that the accessed first WLAN AP is the highest transmit power value among the multiple WLAN APs; Alternatively, the transmit power level of the first WLAN AP is the highest of the transmit power levels of the plurality of WLAN APs. Alternatively, the ratio of the transmit power of the first WLAN AP to the transmit power of the first cellular network site is the largest of the ratio of the transmit power of the plurality of WLAN APs to the transmit power of the first cellular network site.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the smallest.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the largest.
  • the information about the first WLAN AP that is sent by the first cellular network station to the UE includes the transmit power information of the first WLAN AP, and the UE determines, according to the transmit power information of the first WLAN AP, whether the location where the UE is located is located in the WLAN.
  • accessing the WLAN AP with better signal quality ensures the communication quality of the user and improves the success rate of accessing the WLAN AP, and the UE opens the WLAN module of the UE when determining to access the first WLAN AP. Accessing the first WLAN AP avoids continuous scanning and attempted access, thereby effectively saving system resources and saving power consumption of the UE.
  • the information about the first WLAN AP sent by the sending unit 802 is used.
  • the resource usage information of the first WLAN AP may be included, where the resource usage information of the first WLAN AP includes at least one of the following: the air interface resource information of the first WLAN AP, the backhaul bandwidth information of the first WLAN AP, and the first WLAN AP.
  • the CPU processes the resource information and the connection capacity information of the first WLAN AP. It should be understood that the embodiments of the present invention are not limited thereto.
  • the UE receives the information of the first WLAN AP sent by the sending unit 802, and includes the resource usage information of the first WLAN AP. When the UE meets the following at least one condition, the UE determines that the unused resource of the first WLAN AP meets the resource requirement of the UE, specifically including :
  • the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; the percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resources is greater than the second ratio threshold; the first WLAN AP is idle.
  • the percentage of the backhaul bandwidth to the total backhaul bandwidth is greater than the third ratio threshold; and the percentage of the connection capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold. and many more.
  • a WLAN AP avoids continuous scanning and attempted access, thereby effectively saving system resources and saving UE power consumption.
  • the WLAN access mode supported by the first WLAN (that is, the manner in which the UE accesses the WLAN), such as I-WLAN defined by the 3GPP, I-WLAN mobility, S2b, S2c, S2a I, and S2a II.
  • I-WLAN defined by the 3GPP
  • I-WLAN mobility I-WLAN mobility
  • S2b, S2c, S2a I, and S2a II The way in which UEs with different capabilities access the WLAN is also different. If the WLAN network of the carrier supports only one or several access modes, and the UE does not support any access mode supported by the WLAN network, the UE cannot access the WLAN AP.
  • the information of the first WLAN AP that is sent by the first eNB to the UE includes the WLAN access mode information supported by the first WLAN AP, and the UE determines the WLAN access mode according to the information supported by the first WLAN AP.
  • a WLAN access mode supported by the WLAN AP the capability of the UE supports determining the WLAN access mode supported by the accessed first WLAN AP, thereby improving the success rate of accessing the WLAN AP, and the UE is determined to access the first WLAN.
  • the AP opens the WLAN module of the UE and accesses the first WLAN AP, so as to avoid continuous scanning and attempting access, thereby effectively saving system resources and saving power consumption of the UE.
  • the information about the offload mode supported by the first WLAN AP specifically includes whether the WLAN network provides an NSWO service, an IFOM, or a MAPCON. Further, the UE determines whether to adopt the WLAN AP offload according to its own capabilities and/or requirements of the accessed services.
  • the UE determines the offload mode supported by the first WLAN AP according to the information about the offload mode supported by the first WLAN AP, and the UE supports the offloading capability and/or the request of the access service to determine the accessed first WLAN AP. Therefore, the efficiency of accessing the WLAN AP is improved, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the sending unit 802 may be specifically configured to: send a broadcast control channel BCCH to the UE, where the BCCH carries information of the first WLAN AP generated by the first cellular network site.
  • the UE can obtain the information of the first WLAN AP by reading the BCCH sent by the transmitting unit 802.
  • the UE is in an idle state and camps on the first cellular network site, or the UE is in a connected state and connected to the second cellular network site.
  • the sending unit 802 may be specifically configured to: send a second RRC message to the UE, where the second RRC message carries information of the WLAN AP generated by the first cellular network site, where the UE is in a connected state and connected Go to the first cellular network site. That is, the UE may acquire the information of the WLAN AP by reading the second RRC message sent by the sending unit 802.
  • the second RRC message may be a message such as an RRC connection reconfiguration or an RRC connection establishment or an RRC connection reestablishment. It should be understood that the embodiment of the present invention is not limited thereto.
  • the first cellular network site may further include a receiving unit 803, where the receiving unit 803 is configured to receive a third RRC message sent by the UE, and learn, by using the third RRC message, that the UE can access the first WLAN AP.
  • Example. 9 is a schematic block diagram of an apparatus in accordance with an embodiment of the present invention.
  • apparatus 900 includes a processor 901, a memory 902, a transmitter 903, and a receiver 904.
  • the processor 901 controls the operation of the device 900, which may also be referred to as a CPU (Central Processing Unit).
  • Memory 902 can include read only memory and random access memory and provides instructions and data to processor 901.
  • a portion of the memory 902 may also include non-volatile line random access memory (NVRAM).
  • NVRAM non-volatile line random access memory
  • the processor 901, the memory 902, the transmitter 903 and the receiver 904 are coupled together by a bus system 910, wherein the bus system 910 includes, in addition to the data bus, Includes power bus, control bus, and status signal bus. However, for clarity of description, various buses are labeled as bus system 910 in the figure.
  • the above-described device 900 can be applied to the method disclosed in the above embodiments of the present invention.
  • the processor 901 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 901 or an instruction in the form of software.
  • the processor 901 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; or a digital signal processing (DSP), dedicated Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.
  • the methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • FIG. 10 is a structural block diagram of a user equipment according to another embodiment of the present invention.
  • the UE 1000 includes a receiver 1001 and a processor 1002.
  • the receiver 1001 is configured to generate information of the first WLAN AP that is generated and sent by the first cellular network site.
  • the processor 1002 is configured to determine, according to information about the first WLAN AP received by the receiver 1001, whether to access the first WLAN AP.
  • the processor 1002 is further configured to access the first WLAN AP if it is determined to access the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP, including integrating the first WLAN AP on the first cellular network site or in the adjacent area of the first cellular network site. Put the first WLAN AP.
  • the UE does not need to receive the information about the access network from the ANDSF entity of the core network user plane, directly receives the information of the first WLAN AP generated and sent by the first cellular network site, reduces the delay, and improves the efficiency.
  • the UE 1000 can implement the operations related to the UE in the embodiments of Figs. 1 to 6, and therefore will not be described in detail in order to avoid redundancy.
  • the processor 1002 is further configured to enable the WLAN of the UE. Module.
  • the processor 1002 opens the WLAN module of the UE and accesses the first WLAN AP, if the access to the first WLAN AP is determined according to the information of the received WLAN AP, to avoid continuous scanning and attempting access. Effectively save system resources and save power consumption of the UE.
  • the received information of the first WLAN AP received by the receiver 1001 may include at least one of the following: an identifier of the first WLAN AP, a transmit power information of the first WLAN AP, and a first WLAN AP.
  • the identifier of the first WLAN AP may be one or more of BSSID, SSID, HESSID and OUI/OI.
  • the BSSID is the MAC address of the AP and is the global unique identifier of the AP.
  • the SSID is the service set identifier of the operator's WLAN and identifies the carrier's WLAN network.
  • the OUI/OI is a unique identifier of the WLAN roaming organization. The UE can determine whether the WLAN AP corresponding to the OUI/OI can roam the home network (providing the WLAN subscription network) through the OUI/OI.
  • the identifier of the WLAN AP that the UE can access is pre-configured in the UE, or is sent to the UE by the receiving network side device (such as the network policy entity ANDSF), or configured by the operator in the SIM/USIM card, and so on. It should be understood that the manner in which the UE learns the identity of the accessible WLAN AP is not limited.
  • the UE determines, by using the identifier of the first WLAN AP, that the first WLAN AP is a WLAN AP that the UE can access.
  • the processor 1002 determines that the first WLAN AP integrates the first WLAN AP according to the identifier of the first WLAN AP; the processor 1002 determines, according to the transmit power information of the first WLAN AP, that the location where the UE is located is within the coverage of the first WLAN AP; The processor 1002 determines that the unused resource of the first WLAN AP meets the resource requirement of the UE according to the resource usage information of the first WLAN AP. The processor 1002 determines, according to the information of the WLAN access mode supported by the first WLAN AP, that the UE supports the first capability.
  • the PLMN ID supported by the AP determines that the capability of the UE supports the PLMN ID supported by the first WLAN AP.
  • the processor 1002 is specifically configured to: determine, according to a correspondence between an identifier of the first WLAN AP and an identifier of the WLAN AP integrated with the preset first cellular network site, The first cellular network site integrates the first WLAN AP.
  • the UE may determine, according to the indication information of the first WLAN identifier in the information of the first WLAN AP, that the first cellular network station integrates the first WLAN AP.
  • the transmit power information of the first WLAN AP may include at least one of: a transmit power value of the first WLAN AP, a transmit power level of the first WLAN AP, and a transmit power of the first WLAN AP and the first cellular network. The ratio or offset of the transmit power of the site. and many more. It should be understood that embodiments of the invention are not limited thereto.
  • the processor 1002 is specifically configured to: determine, according to the transmit power information of the first WLAN AP, the coverage of the first WLAN AP, and determine, according to the signal measurement value of the first cell site, the location of the UE, according to the first WLAN AP The coverage and the location where the UE is located determine that the location where the UE is located is within the coverage of the first WLAN AP.
  • the processor 1002 determines, according to the transmit power information of the first WLAN AP, that the location of the UE is within the coverage of the first WLAN AP, the processor 1002 determines to access the first WLAN AP. Further, the value (or level) of the transmit power of the first WLAN AP is greater than a certain threshold, or the ratio of the transmit power value of the first WLAN AP to the transmit power value of the first cell site is greater than a certain ratio, or The offset value of the transmit power value of the first WLAN AP and the transmit power value of the first cell site is less than a certain threshold. These thresholds or thresholds may be pre-set on the UE or may be sent by the network policy entity to the UE.
  • the processor 1002 may estimate the location where the UE is located according to the transmit power of the first cell site and the received signal strength of the first cell site, and the processor 1002 may determine, by using the transmit power information of the WLAN AP, the first cell site integration.
  • the effective coverage of the WLAN AP for example, the UE can receive the signal strength of the WLAN AP greater than a certain signal threshold, such as -65 dBm or more), and determine whether the location of the UE is at the WLAN AP integrated by the first cellular site. Within the effective coverage.
  • the processor 1002 can determine whether the current location of the UE is within the effective coverage of the WLAN AP by using the geographic location of the WLAN AP and the transmit power information of the WLAN AP.
  • the receiver 1001 can be used to receive information of other WLAP APs, in addition to receiving information of the first WLAN AP generated and sent by the first cellular network station, that is, the receiver 1001 is specifically configured to: receive The information of the at least one WLAN AP generated and sent by the first cellular network site, where the information of the at least one WLAN AP includes the information of the first WLAP AP.
  • the processor 1002 determines that the accessed first WLAN AP is in multiple WLAN APs.
  • the transmit power value is the largest; or, the transmit power level of the first WLAN AP is the highest of the transmit power levels of the plurality of WLAN APs.
  • the processor 1002 determines that the ratio of the transmit power of the accessed first WLAN AP to the transmit power of the first cellular network site is the largest of the ratio of the transmit power of the plurality of WLAN APs to the transmit power of the first cellular network site. Or, at first
  • the processor 1002 determines that the offset value of the transmit power of the accessed first WLAN AP and the transmit power of the first cellular network site is the transmission of multiple WLAN APs. The smallest of the offset values of the power and the transmit power of the first cellular network site. Or, when the transmit power of the first WLAN AP is greater than the transmit power of the first cellular network site, the processor 1002 determines that the transmit power of the accessed first WLAN AP and the transmit power of the first cellular network site are offset. The offset between the transmit power of the WLAN AP and the transmit power of the first cellular network site is the largest.
  • the UE determines, according to the transmit power information of the first WLAN AP, whether the location where the UE is located is within the coverage of the first WLAN AP, and accesses the first WLAN AP with good signal quality, thereby ensuring the communication quality of the user. And improving the success rate of accessing the WLAN AP, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the information about the first WLAN AP that is received by the receiver 1001 may further include resource usage information of the first WLAN AP, where the resource usage information of the first WLAN AP includes at least one of the following: The air interface resource information of the WLAN AP, the backhaul bandwidth information of the first WLAN AP, the CPU processing resource information of the first WLAN AP, and the connection capacity information of the first WLAN AP. It should be understood that the embodiments of the present invention are not limited thereto.
  • the processor 1002 is specifically configured to: determine that the unused resources of the first WLAN AP meet the resource requirements of the UE, when the following at least one condition is met, specifically:
  • the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; the percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resources is greater than the second ratio threshold; the first WLAN AP is idle.
  • the percentage of the backhaul bandwidth to the total backhaul bandwidth is greater than the third ratio threshold; and the percentage of the connection capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold. and many more.
  • the processor 1002 may be configured to: use, according to the resource usage information of the first WLAN AP, the maximum value of the used resources as a percentage of the total resources or the percentage of the unused resources as a percentage of the total resources.
  • a small value is used to determine whether to access the first WLAN AP.
  • the maximum value of the CPU processing resources used by the first WLAN AP as a percentage of the total CPU processing resources is less than the first ratio threshold, or the connection capacity used by the first WLAN AP (may be represented as a UE connected to the AP)
  • the maximum value of the percentage of the total connection capacity is less than the fourth ratio threshold, or the minimum value of the air interface resource that is idle by the first WLAN AP to the total air interface resource is greater than the second ratio threshold, and so on.
  • the threshold of the decision may be preset to the UE, or may be sent by the network policy entity to the UE.
  • the processor 1002 can consider the comprehensive resource usage information of the WLAN AP, that is, the plurality of resource usage information.
  • the UE determines, according to the resource usage information of the first WLAN AP, whether the unused resources of the first WLAN AP meet the resource requirements of the UE, and the access network resource uses a smaller WLAN AP, thereby ensuring the quality of the user and improving the service quality of the user.
  • User experience and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving system resources and saving power consumption of the UE. .
  • the WLAN access mode that can be supported by the UE may be pre-configured in the UE, or may be sent by the network policy entity to the UE.
  • the processor 1002 may be specifically configured to: determine, according to a correspondence between a WLAN access mode supported by the first WLAN AP and a WLAN AP access mode (which may be pre-set or sent by the network policy entity) The capability of the UE supports the WLAN access mode supported by the first WLAN AP.
  • WLAN access mode (that is, the way the UE accesses the WLAN), such as I-WLAN (WLAN Interworking) defined by 3GPP, I-WLAN mobility, non-trusted access S2b, S2c, trusted access S2a I (Rel-11) ) and S2a II (Rel-12) and so on.
  • I-WLAN WLAN Interworking
  • the way in which UEs with different capabilities access the WLAN is different. If the WLAN network of the operator supports only one or several access modes, and the UE does not support any access mode supported by the WLAN network, the UE cannot access the WLAN AP.
  • the UE determines the WLAN access mode supported by the first WLAN AP according to the information of the WLAN access mode supported by the first WLAN AP, and the capability of the UE supports determining the WLAN access supported by the accessed first WLAN AP.
  • the method further improves the success rate of accessing the WLAN AP, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively Save system resources and save UE power consumption.
  • the first WLAN AP supported by the receiver 1001 is offloaded by the first WLAN AP.
  • the information of the mode includes: Whether the WLAN network provides the NSWO service or information such as IFOM or MAPCON.
  • the processor 1002 may be further configured to determine whether to adopt WLAN AP offload according to its own capabilities and/or requirements of the accessed services.
  • the UE determines the offload mode supported by the first WLAN AP according to the information about the offload mode supported by the first WLAN AP, and the UE supports the offloading capability and/or the request of the access service to determine the accessed first WLAN AP. Therefore, the efficiency of accessing the WLAN AP is improved, and the UE opens the WLAN module of the UE and accesses the first WLAN AP when determining to access the first WLAN AP, thereby avoiding continuous scanning and attempting access, thereby effectively saving the system. Resources and saves UE power consumption.
  • the PLMN ID that can be supported by the UE may be pre-configured in the UE, or may be sent by the network policy entity to the UE, or may be configured by the operator in the SIM/USIM card.
  • the processor 1002 is specifically configured to: determine, according to the correspondence between the PLMN ID supported by the first WLAN AP supported by the first WLAN AP and the PLMN ID stored in the UE, the capability of the UE to support the PLMN ID supported by the first WLAN AP.
  • the receiver 1001 may be specifically configured to: receive a BCCH sent by the first cellular network station, where the BCCH carries the first cellular network.
  • the UE can obtain the information of the first WLAN AP by reading the BCCH sent by the first cellular network station.
  • the receiver 1001 when the UE is in a connected state and connected to the second cellular network site, the receiver 1001 may be specifically configured to: receive and read the first cellular network site according to the instruction of the second cellular network site.
  • the transmitted BCCH, the BCCH carries the information of the first WLAN AP generated by the first cellular network site.
  • the process of guiding the UE by the specific second cellular network site may refer to the prior art, and details are not described herein again.
  • the UE may further include a transmitter 1003, configured to: send, by the second cell site, a first RRC message, where the first RRC message is used to notify the second cellular network station that the UE can access the first WLAN AP.
  • the receiver 1001 may be specifically configured to: when the UE is in a connected state and connected to the first cellular network site, receive a second RRC message sent by the first cellular network station, and the second RRC message Carrying information of the first WLAN AP generated by the first cellular network site.
  • the transmitter 1003 is further configured to: to the first cellular network The network station sends a third RRC message, and the third RRC message is used to notify the first cellular network station that the UE can access the first WLAN AP.
  • FIG 11 is a block diagram showing the structure of a first cellular network site in accordance with one embodiment of the present invention.
  • the first cellular network site 1100 includes a processor 1101 and a transmitter 1102.
  • the processor 1101 is configured to generate information of the first WLAN AP of the WLAN access point.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP.
  • the coverage of the first cellular network site has an overlapping area with the coverage of the first WLAN AP, including integrating the WLAN AP on the first cellular network site or deploying the WLAN in the vicinity of the first cellular network site.
  • the situation of the AP is not limited to integrating the WLAN AP on the first cellular network site or deploying the WLAN in the vicinity of the first cellular network site.
  • the transmitter 1102 is configured to send information about the first WLAN AP generated by the processor 1101 to the UE, to instruct the UE to determine whether to access the first WLAN AP according to the information of the WLAN AP, where it is determined to access the first WLAN AP, Access the first WLAN AP.
  • the first cellular network station generates information of the first WLAN AP, and the first cellular network station sends the information of the first WLAN AP to the UE.
  • the UE determines whether to access the first WLAN AP according to the information of the first WLAN AP, and accesses the first WLAN AP if it is determined to access the first WLAN AP. Therefore, the UE does not need to receive the information about the access network from the ANDSF entity of the core network user plane, directly receives the information of the WLAN AP generated and sent by the first cellular network site, reduces the delay, and improves the efficiency.
  • the UE determines to access the WLAN module of the UE and access the first WLAN AP according to the information of the received WLAN AP, so as to avoid continuous scanning and attempting access, thereby effectively Save system resources and save UE power consumption.
  • the first cellular network site 1100 can implement the operations of the first cellular network site in the embodiments of Figures 1 through 6, and thus will not be described in detail to avoid redundancy.
  • the information about the first WLAN AP sent by the transmitter 1102 may include at least one of the following: an identifier of the first WLAN AP, a transmit power information of the first WLAN AP, and a resource usage of the first WLAN AP.
  • the identifier of the first WLAN AP is used by the UE to determine whether the first WLAN AP integrates the first WLAN AP, and the transmit power information of the first WLAN AP is used by the UE to determine the UE. Whether the location of the first WLAN AP is within the coverage of the first WLAN AP, and the resource usage information of the first WLAN AP is used by the UE to determine that the unused resource of the first WLAN AP meets the resource requirement of the UE, and the WLAN access supported by the first WLAN AP.
  • the information of the mode is used by the UE to determine whether the capability of the UE supports the WLAN access mode supported by the first WLAN AP, and the information about the offload mode supported by the first WLAN AP is used by the UE to determine whether the offload mode supported by the first WLAN AP is satisfied.
  • the requirement of the service accessed by the UE, and the PLMN ID supported by the first WLAN AP are used by the UE to determine whether the capability of the UE supports the PLMN ID supported by the first WLAN
  • the UE determines to access the first WLAN AP.
  • the UE determines to access the first WLAN AP.
  • an embodiment of how the UE determines the foregoing at least one condition may refer to the foregoing, and details are not described herein again.
  • the identifier of the first WLAN AP may be one or more of BSSID, SSID, HESSID, and OUI/OI.
  • the BSSID is the MAC address of the AP and is the globally unique identifier of the AP.
  • the SSID is the service set identifier of the operator's WLAN and identifies the carrier's WLAN network.
  • the OUI/OI is a unique identifier of the WLAN roaming organization. The UE can determine whether the WLAN AP corresponding to the OUI/OI can roam the home network (providing the WLAN subscription network) through the OUI/OI.
  • the identifier of the WLAN AP that the UE can access is pre-configured in the UE, or is sent to the UE by the receiving network side device (such as the network policy entity ANDSF), or configured by the operator in the SIM/USIM card, and so on. It should be understood that the manner in which the UE learns the identity of the accessible WLAN AP is not limited.
  • the transmit power information of the first WLAN AP may include at least one of: a transmit power value of the first WLAN AP, a transmit power level of the first WLAN AP, and a transmit power of the first WLAN AP and the first cellular network.
  • the ratio or offset of the transmit power of the site and many more. It should be understood that embodiments of the invention are not limited thereto.
  • the transmitter 1102 may send information about the first WLAN AP generated by the processor 1101 to the UE, and may also send information about other WLAPAPs generated by the processor 1101. That is, the transmitter 1102 sends the information of the at least one WLAN AP generated by the processor 1101 to the UE, and the information of the at least one WLAN AP includes the information of the first WLAP AP.
  • the UE determines that the accessed first WLAN AP is the largest transmit power value among the multiple WLAN APs; Alternatively, the transmit power level of the first WLAN AP is the highest of the transmit power levels of the plurality of WLAN APs. Or, the transmit power of the first WLAN AP and the first bee The ratio of the transmit power of the nest network site is the largest of the ratio of the transmit power of the plurality of WLAN APs to the transmit power of the first cellular network site.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the smallest.
  • the offset value of the transmit power of the first WLAN AP and the transmit power of the first cellular network site is the transmit power of the multiple WLAN APs.
  • the offset of the transmit power of the first cellular network site is the largest.
  • the information about the first WLAN AP that is sent by the first cellular network station to the UE includes the transmit power information of the first WLAN AP, and the UE determines, according to the transmit power information of the first WLAN AP, whether the location where the UE is located is located in the WLAN.
  • accessing the WLAN AP with better signal quality ensures the communication quality of the user and improves the success rate of accessing the WLAN AP, and the UE opens the WLAN module of the UE when determining to access the first WLAN AP. Accessing the first WLAN AP avoids continuous scanning and attempted access, thereby effectively saving system resources and saving power consumption of the UE.
  • the information about the first WLAN AP sent by the transmitter 1102 may further include resource usage information of the first WLAN AP, where the resource usage information of the first WLAN AP includes at least one of the following: The air interface resource information of the AP, the backhaul bandwidth information of the first WLAN AP, the CPU processing resource information of the first WLAN AP, and the connection capacity information of the first WLAN AP. It should be understood that the embodiments of the present invention are not limited thereto.
  • the UE receives the information of the first WLAN AP sent by the transmitter 1102, and includes the resource usage information of the first WLAN AP. When the UE meets the following at least one condition, the UE determines that the unused resource of the first WLAN AP meets the resource requirement of the UE, specifically including :
  • the percentage of the CPU processing resources used by the first WLAN AP to the total CPU processing resources is less than the first ratio threshold; the percentage of the air interface resources that are idle by the first WLAN AP to the total air interface resources is greater than the second ratio threshold; the first WLAN AP is idle.
  • the percentage of the backhaul bandwidth to the total backhaul bandwidth is greater than the third ratio threshold; and the percentage of the connection capacity used by the first WLAN AP to the total connection capacity is less than the fourth ratio threshold. and many more.
  • the WLAN access mode supported by the first WLAN (that is, the manner in which the UE accesses the WLAN), such as I-WLAN defined by the 3GPP, I-WLAN mobility, S2b, S2c, S2a I, and S2a II.
  • I-WLAN defined by the 3GPP
  • I-WLAN mobility I-WLAN mobility
  • S2b, S2c, S2a I, and S2a II The way in which UEs with different capabilities access the WLAN is also different. If the WLAN network of the carrier supports only one or several access modes, and the UE does not support any access mode supported by the WLAN network, the UE cannot access the WLAN AP.
  • the WLAN network may also provide NSWO services or concurrent offload services (such as IFOM or MAPCON).
  • the UE determines, according to its own capability and the form of the access service, whether to use the first cellular network site to perform concurrent offloading with the WLAN AP. When the UE determines that the first cellular network site and the WLAN AP are used for concurrent offloading, the UE determines the access.
  • the first WLAN AP can also provide concurrent offload services.
  • the information of the first WLAN AP that is sent by the first eNB to the UE includes the WLAN access mode information supported by the first WLAN AP, and the UE determines the WLAN access mode according to the information supported by the first WLAN AP.
  • a WLAN access mode supported by the WLAN AP the capability of the UE supports determining the WLAN access mode supported by the accessed first WLAN AP, thereby improving the success rate of accessing the WLAN AP, and the UE is determined to access the first WLAN.
  • the AP opens the WLAN module of the UE and accesses the first WLAN AP, so as to avoid continuous scanning and attempting access, thereby effectively saving system resources and saving power consumption of the UE.
  • the transmitter 1102 may be specifically configured to: send a broadcast control channel BCCH to the UE, where the BCCH carries information of the first WLAN AP generated by the first cellular network site.
  • the UE can obtain the information of the first WLAN AP by reading the BCCH transmitted by the transmitter 1102.
  • the UE is in an idle state and resides at the first cellular network site, or the UE is in a connected state and is connected to the second cellular network site.
  • the transmitter 1102 may be specifically configured to: send a second RRC message to the UE, where the second RRC message carries information of the WLAN AP generated by the first cellular network site, where the UE is in a connected state and connected Go to the first cellular network site. That is, the UE may obtain the information of the WLAN AP by reading the second RRC message sent by the transmitter 11002.
  • the second RRC message may be an RRC connection reconfiguration or an RRC connection setup or an RRC connection. It should be understood that the embodiments of the present invention are not limited thereto.
  • the first cellular network site may further include a receiver 1103, where the receiver 1103 is configured to receive a third RRC message sent by the UE, and learn, by using the third RRC message, that the UE can access the first WLAN AP. .
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including a number of instructions to make a computer device (which can be a personal computer, a server, Or a network device or the like) performing all or part of the steps of the method of the various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de réaliser l'interfonctionnement entre un réseau cellulaire et un réseau local sans fil. Le procédé comprend: la réception par un équipement utilisateur (UE) d'informations sur un premier point d'accès de réseau local sans fil (WLAN AP) qui sont générées et envoyées par une première station de réseau cellulaire; la détermination par un équipement utilisateur d'accéder ou non au premier WLAN AP en fonction des informations sur le premier WLAN AP; et l'accès par l'équipement utilisateur au premier WLAN AP dans le cas d'une décision d'accès au premier WLAN AP. Au moyen de la solution sus-mentionnée, un UE n'a pas besoin de recevoir d'informations pertinentes sur un réseau d'accès en provenance d'un entité de fonction de découverte et de sélection de réseau d'accès (ANDSF) sur un plan utilisateur ou un réseau central, mais reçoit directement des informations sur un WLAN AP qui sont générées et envoyées par une première station de réseau cellulaire, ce qui réduit ainsi les délais et améliore l'efficacité.
PCT/CN2013/082915 2013-09-04 2013-09-04 Procédé et dispositif de réalisation d'interfonctionnement entre un réseau cellulaire et un réseau local sans fil Ceased WO2015032036A1 (fr)

Priority Applications (2)

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CN201380004525.6A CN104770019B (zh) 2013-09-04 2013-09-04 实现蜂窝网络和无线局域网络互操作的方法和设备
PCT/CN2013/082915 WO2015032036A1 (fr) 2013-09-04 2013-09-04 Procédé et dispositif de réalisation d'interfonctionnement entre un réseau cellulaire et un réseau local sans fil

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PCT/CN2013/082915 WO2015032036A1 (fr) 2013-09-04 2013-09-04 Procédé et dispositif de réalisation d'interfonctionnement entre un réseau cellulaire et un réseau local sans fil

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CN104770019A (zh) 2015-07-08

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