WO2015168944A1 - 一种业务转移门限的确定方法和蜂窝通信设备 - Google Patents

一种业务转移门限的确定方法和蜂窝通信设备 Download PDF

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Publication number
WO2015168944A1
WO2015168944A1 PCT/CN2014/077180 CN2014077180W WO2015168944A1 WO 2015168944 A1 WO2015168944 A1 WO 2015168944A1 CN 2014077180 W CN2014077180 W CN 2014077180W WO 2015168944 A1 WO2015168944 A1 WO 2015168944A1
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WIPO (PCT)
Prior art keywords
cellular communication
communication device
user equipment
service transfer
threshold
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PCT/CN2014/077180
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English (en)
French (fr)
Inventor
罗海燕
杨利
张宏卓
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201910054942.0A priority Critical patent/CN109640349B/zh
Priority to PCT/CN2014/077180 priority patent/WO2015168944A1/zh
Priority to CN201480035432.4A priority patent/CN105325032B/zh
Publication of WO2015168944A1 publication Critical patent/WO2015168944A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • H04W36/144Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1446Reselecting a network or an air interface over a different radio air interface technology wherein at least one of the networks is unlicensed

Definitions

  • the embodiments of the present invention relate to the field of wireless communications, and specifically to a method for determining a service transition threshold and a cellular communication device. Background technique
  • At least one non-cellular communication network is deployed in the cellular communication network, and the user equipment can transfer some or all of the services from the cellular communication network to the non-cellular communication network or from the non-cellular communication network. Transfer to a cellular communication network to reduce the load on the cellular communication network and improve the throughput of the entire communication system.
  • the current research indicates that in the process of transferring a user equipment from a cellular communication network to a non-cellular communication network, the cellular communication device that provides the service for the user equipment needs to send a service transfer threshold for the user equipment to perform service transfer. .
  • the user equipment can determine whether to transfer traffic from the cellular communication network to the non-cellular communication network based on the traffic transfer threshold.
  • Embodiments of the present invention provide a method for determining a service transfer threshold and a cellular communication device, which solves the technical problem of determining how a service transfer threshold is determined when a user equipment transfers a service from a cellular communication network to a non-cellular communication network.
  • a first aspect of the embodiments of the present invention provides a cellular communication device
  • a receiver configured to receive performance information sent by the non-cellular communication device and statistical information corresponding to the performance information
  • a processor configured to determine, according to the performance information and the statistical information, that the user equipment is engaged in the industry Business transfer threshold at the time of transfer;
  • the performance information is an average transmission rate or an average access delay of the associated user equipment in the non-cellular communication device; the statistical information is a load of the non-cellular communication device, and an uplink of the associated user equipment.
  • Signal quality, downlink signal quality of the associated user equipment, available backhaul capacity of the non-cellular communication network, uplink and downlink traffic ratio of the non-cellular communication network, working bandwidth of the non-cellular communication network, and the non-cellular At least one of the packet error rates of the communication network.
  • the cellular communication network further includes:
  • a transmitter configured to send the service transfer threshold to the user equipment.
  • the transmitter is further configured to send the identifier of the non-cellular communication device to the user equipment .
  • the receiver is further configured to send, by the transmitter, the non-cellular communication device to the user equipment Before the identifying, receiving, by the user equipment, a list of non-cellular communication devices searched by the user equipment;
  • the processor is further configured to determine whether the list includes the non-cellular communication device; the transmitter is specifically configured to: when the processor determines that the list includes the non-cellular communication device, to the user The device transmits an identification of the non-cellular communication device.
  • the processor is configured to use the performance information and the statistical information according to any one of the first aspect to the third possible implementation manner of the first aspect. And determining, by the processor, the correspondence between the performance information and the statistical information, according to the performance information and the statistical information, and determining a service transfer threshold when the user equipment performs a service transfer, and Selecting, from the corresponding relationship, statistical information that meets the service transfer performance requirement of the user equipment, as the service transfer threshold.
  • the processor is configured to use the performance information and the statistical information according to any one of the first aspect to the third possible implementation manner of the first aspect.
  • the processor is further configured to set the service transfer threshold such that the user equipment does not satisfy a threshold for transferring a service from the cellular communication network to the non-cellular communication network; or The processor is further configured to set the service transfer threshold such that the user equipment meets a threshold for transferring traffic from the cellular communication network to the non-cellular communication network.
  • the receiver is further configured to receive a performance requirement when the user equipment sends the service forwarding by the user equipment.
  • a second aspect of the embodiments of the present invention provides a method for determining a service forwarding threshold, including: receiving, by a cellular communication device, performance information sent by a non-cellular communication device and statistical information corresponding to the performance information;
  • the performance information is an average transmission rate or an average access delay of the associated user equipment in the non-cellular communication device; the statistical information is a load of the non-cellular communication device, and an uplink of the associated user equipment.
  • Signal quality, downlink signal quality of the associated user equipment, available backhaul capacity of the non-cellular communication device, uplink and downlink traffic ratio of the non-cellular communication device, operating bandwidth of the non-cellular communication device, and the non-cellular At least one of the packet error rates of the communication device.
  • the method further includes:
  • the cellular communication device sends the traffic transfer threshold to the user equipment.
  • the method further includes:
  • the cellular communication device transmits an identification of the non-cellular communication device to the user equipment.
  • the method before the cellular communication device sends the identifier of the non-cellular communication device to the user equipment, The method further includes: the cellular communication device receiving, by the user equipment, a list of non-cellular communication devices searched by the user equipment;
  • the cellular communications device determines that the user equipment is satisfied according to the performance information and the statistical information
  • the service transfer threshold for performing the service transfer performance requirement includes: the cellular communication device generating a correspondence between the performance information and the statistical information according to the performance information and the statistical information;
  • the cellular communications device determines the user according to the performance information and the statistical information Thresholds for business transfer when the device performs business transfer, including:
  • the cellular communication device generates a correspondence between the performance information and the statistical information according to the performance information and the statistical information; Determining, according to the correspondence, whether the performance information corresponding to the current statistical information of the non-cellular communication device meets the performance requirement of the user equipment for performing service transfer;
  • the cellular communication device sets the service transfer threshold such that the user equipment does not satisfy a threshold for transferring traffic from the cellular communication network to the non-cellular communication network; or, if satisfied, The cellular communication device sets the traffic diversion threshold such that the user equipment satisfies a threshold for transferring traffic from the cellular communication network to the non-cellular communication network.
  • the method further includes:
  • the cellular communication device receives a performance requirement when the user equipment sends a service transfer by the user equipment.
  • the cellular communication device determines, according to performance information and statistical information received from the non-cellular communication device, a service transfer threshold when the user equipment is to perform service transfer, and the performance information and statistics.
  • the information actually reflects, directly or indirectly, the performance that the non-cellular communication network can provide for the user equipment after the user equipment transfers the service to the non-cellular communication network for the user equipment that is to be transferred. Further, the user equipment can also purposely transfer the service to a non-cellular communication network that satisfies its performance requirements for service transfer.
  • the technical solution provided by the embodiment of the present invention can achieve the purpose of setting a service forwarding threshold reasonably, so as to prevent the user experience from degrading after the user equipment transfers the service to a non-cellular communication device due to the unreasonable service forwarding threshold.
  • FIG. 1 is a schematic structural diagram of a communication system 100 according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for determining a service transition threshold according to an aspect of the present disclosure
  • FIG. 3 is a schematic flowchart diagram of a method for determining a service transition threshold according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a cellular communication device 400 according to an aspect of an embodiment of the present invention. detailed description
  • the cellular communication network of the embodiments of the present invention may be a global system of mobile communication (GSM) network, a code division multiple access (CDMA) network, or a wideband code division (wideband code division).
  • Multiple access (WCDMA) network general packet radio service (GPRS) network, long term evolution (LTE) network, LTE frequency division duplex (FDD) network, LTE time division duplex (TDD) network, universal mobile telecommunication system (UMTS) network, and the like.
  • the cellular communication device may be a base transceiver station (BTS) in GSM or CDMA, and may be a radio network controller (RNC) or a base station (nodeb, NB for short) in WCDMA.
  • BTS base transceiver station
  • RNC radio network controller
  • nodeb, NB base station
  • eNB evolved base station
  • eNodeB evolved base station
  • pic eNB macro base station
  • pico eNB small base station
  • SRC single radio access network controller
  • the non-cellular communication network may be a wireless local network (WLAN) using wireless fidelity (Wi-Fi) technology.
  • WLAN wireless local network
  • Wi-Fi wireless fidelity
  • Non-cellular communication device It can be a WLAN access point (AP).
  • the user equipment in various embodiments of the present invention supports operation in a cellular communication network and a non-cellular communication network.
  • a user equipment may be referred to as a mobile terminal, a mobile user equipment, or the like.
  • the user equipment may also be referred to as a station (STA).
  • STA station
  • the user equipment may be a mobile phone (or "cellular" phone) and a computer having a mobile terminal function, for example, a mobile device that can be portable, pocket-sized, handheld, built-in or in-vehicle, which is not implemented in the embodiments of the present invention. limited.
  • FIG. 1 is a schematic structural diagram of a communication system 100 according to an embodiment of the present invention.
  • communication system 100 includes at least one cellular communication device 101 that provides coverage of a cellular communication network and at least one non-cellular communication device 102 that provides coverage of a non-cellular communication network.
  • At least one non-cellular communication device 102 can be deployed within the signal coverage of a cellular communication device 101.
  • the service transfer of the user equipment may be to transfer the service in the cellular communication network to the non-cellular communication network, or to transfer the service in the non-cellular communication network to the cellular communication network, or to transfer the service in the non-cellular communication network. Go to another non-cellular network.
  • the technical problem that is mainly solved by the embodiments of the present invention is how to determine the service transfer threshold for the user equipment to perform service transfer from the cellular communication network to the non-cellular communication network.
  • the user equipment performs service transfer, that is, the user equipment transfers part or all of the services of the cellular communication network to the non-cellular communication network.
  • the user equipment may determine whether the service on the cellular network can be transferred to the non-cellular network according to the service transfer threshold for performing the service transfer.
  • the service transfer threshold may include a load threshold and a signal quality threshold of the user equipment (the signal quality threshold includes the uplink signal quality threshold of the user equipment and the user setting) At least a downlink signal quality threshold), an available backhaul capacity threshold of the non-cellular communication device, an uplink/downlink traffic ratio threshold of the non-cellular communication device, a working bandwidth threshold of the non-cellular communication device, and at least a packet error rate threshold of the non-cellular communication device One.
  • the core network device and the Internet (Internet) server providing the service content service are also included in FIG.
  • the cellular communication device 101 is a base station (for example, an eNB, a BTS, or a BS)
  • the base station and the core network device exchange various information through the S1 interface
  • the user equipment exchanges various information with the cellular communication system 101 through the air interface
  • the cellular The communication system 101 exchanges various information through the X2 interface.
  • the cellular communication device 101 can control a base station (not shown) to coordinate with the non-cellular communication device 102, and the user equipment can pass through the cellular
  • the base station or non-cellular communication device 102 controlled by the communication device 101 interacts with the cellular communication device 101 with various information.
  • Each of the following embodiments can be divided into two cases where the cellular communication device 101 is a base station, and the cellular communication device 101 is an SRC, RNC, or other wireless communication node having similar coordination management functions.
  • the term cellular communication device is used uniformly.
  • FIG. 2 is a schematic flowchart of a method for determining a service transition threshold according to an aspect of the present disclosure. As shown in Figure 2, the method includes the following.
  • the cellular communication device 101 receives the performance information sent by the non-cellular communication device 102 and the statistical information corresponding to the performance information.
  • the performance information sent by one non-cellular communication device and the statistical information corresponding to the performance information are one or more groups.
  • the one or more groups may be sent by the non-cellular communication device at different times (which may include the current time) or after a period of time statistics.
  • the cellular communication device 101 determines, according to the performance information and the statistical information, a service transfer threshold for the user equipment to perform service transfer.
  • the performance information is an associated user in the non-cellular communication device 102.
  • Average transmission rate or average access delay of the device; the statistical information is the load of the non-cellular communication device 102, the uplink signal quality of the associated user equipment, the downlink signal quality of the associated user equipment, and the availability of the non-cellular communication device 102.
  • the average transmission rate of the associated user equipment in the non-cellular communication device is the average of the uplink transmission rates of all associated user equipments in the statistical period, the average of the downlink transmission rates of all associated user equipments, or all associated user equipments.
  • the associated user equipments in the non-cellular communication device are user equipment A, user equipment B and user equipment C.
  • the downlink transmission rates of the non-cellular communication device to the user equipment A, the user equipment B and the user equipment C are respectively 1 Mbps (megabits per second), 2 Mbps and 5 Mbps; the user equipment eight, the user equipment B and the user equipment C to the non-cellular communication
  • the uplink transmission rates of the devices are 2 Mbps, 6 Mbps and 4 Mbps, respectively.
  • the average access delay of the associated user equipment in the non-cellular communication device is that the non-cellular communication device counts the average uplink access delay and the average downlink access delay of all associated user equipments in the statistical period.
  • the average uplink access delay is the average duration from the start of the backoff to the end of the backoff of the associated user equipment in the statistical period.
  • the associated user equipment A sends a total of 5 data packets in the statistical period, and the duration from the start of each backoff to the end of the backoff is 0.1 ms (milliseconds), 0.02 ms, 0.36 ms, 1.2 ms, and 0.8 ms, respectively.
  • the average downlink access delay of the associated user equipment is the average duration of the non-cellular communication device from the start to the end of the multiple times in the statistical period. It is to be noted that the average downlink access delay of the associated user equipment refers to the average access delay of the non-cellular communication device for all downlink data packets, and may also be used to distinguish each UE.
  • BSSAverageAccessDelay basic access set average access delay
  • the non-cellular communication device broadcasts the BS SAverageAccessDelay, which is counted for all the downlink data packets, in a beacon frame, so that the user equipment not associated with the non-cellular communication device learns the downlink average connection of the non-cellular communication device. Enter the delay.
  • the load of the non-cellular communication device includes: the number of associated user equipments, channel utilization, and available admission capacity.
  • the channel utilization rate refers to the ratio of the duration that the non-cellular communication device perceives the channel busy to the observation time window.
  • the available admission capacity refers to the remaining admission capacity of the non-cellular communication device 102, for example, the remaining admission capacity of the non-cellular communication device is 2 Mbps, and if the required transmission rate of the user equipment is 4 Mbps, due to the remaining standard of the non-cellular communication device If the incoming capacity is less than 4 Mbps, the user equipment cannot be admitted to the non-cellular communication device.
  • the uplink signal quality of the associated user equipment and the downlink signal quality of the associated user equipment include SSI (receive signal strength indicator) or CPI (received channel power indicator) or SNI (received) Signal to noise indicator, receiving signal to noise ratio indication).
  • the available backhaul capacity of the non-cellular communication device is the remaining transmission capacity of the wired link of the non-cellular communication device 102 to the Internet server.
  • the ratio of uplink and downlink traffic of a non-cellular communication device is the number of data packets successfully received by the non-cellular communication device divided by the number of data packets successfully transmitted by the non-cellular communication device.
  • the working bandwidth of the non-cellular communication device includes, for example, IEEE 802.11b stipulates that the non-cellular communication device can only work on a bandwidth of 20 MHz (megahertz), and the IEEE 802.11n stipulates that the non-cellular communication device can adaptively adjust the working bandwidth to 20 MHz or 40MHz, while IEEE802.11ac specifies that non-cellular communication devices can adaptively adjust the operating bandwidth to 20 MHz, 40 MHz or 80 MHz.
  • the packet error rate of the non-cellular communication device includes the uplink packet error rate of the non-cellular communication device and the downlink packet error rate of the non-cellular communication device.
  • the non-cellular communication device counts the downlink packet error rate, for example, the non-cellular communication device sends the downlink packet, but If no feedback is received from the user equipment within the specified time, the user equipment is considered to have received a packet error.
  • the number of error packets counted by the non-cellular communication device divided by the number of transmissions of the total downlink data packet can be used as the downlink packet error rate.
  • the non-cellular communication device may count the downlink packet error rate for each user equipment accessing the non-cellular communication device, or the non-cellular communication device may calculate the downlink packet error rate for all user equipments accessing the non-cellular communication device.
  • the user equipment accessing the non-cellular communication device can count the uplink packet error rate and report the uplink packet error rate to the non-cellular communication device.
  • the non-cellular communication device can perform arithmetic averaging on the uplink packet error rate reported by the user equipment.
  • the non-cellular communication device may send the arithmetic average value and the downlink packet error rate of the uplink packet error rate to the cellular network access device, or may average the uplink average packet error rate and the downlink packet error rate as a packet error. The rate is sent to the cellular communication device.
  • the cellular communication device 101 receives the performance information sent by the non-cellular communication device 102 and the statistical information of the cellular communication device corresponding to the performance information, and may include the following situations:
  • the cellular communication device 101 and the non-cellular communication device 102 are integrated on the same physical device, which is also called “co-site”.
  • the cellular communication device 101 receives performance information and statistical information transmitted by the non-cell communication device 102 within the same physical device.
  • the cellular communication device 101 and the non-cellular communication device 102 are not integrated on the same physical device, but the cellular communication device 101 has a wireless controller (AC) function of a non-cellular communication network.
  • AC wireless controller
  • the cellular communication device 101 and the non-cellular communication device 102 can implement the CAPWAP (control and provisioning of wireless access points) protocol to implement the cellular communication device 101 from the non-cellular communication device.
  • 102 receives performance information and statistical information.
  • the non-cellular communication device 102 can discover the cellular communication device 101 in accordance with the automatic discovery function specified in the CAPWAP protocol, and establish a CAPWAP tunnel.
  • the cellular communication device 101 can receive performance transmitted by the non-cellular communication device 102 from the established CAPWAP tunnel. Information and statistics.
  • a new interface is established between the cellular communication device 101 and the non-cellular communication device 102.
  • the cellular communication device 101 and the non-cellular communication device 102 can establish a request-response manner between the cellular communication device 101 and the non-cellular communication device 102 for transmitting the above-mentioned performance information and statistical information. interface.
  • the user equipment searches for a non-cellular communication device using Wi-Fi technology, and the user equipment can transmit the identifier of the searched non-cellular communication device 102, such as a Basic Service Set Identifier (BSSID), to the cellular communication device 102. .
  • the cellular communication device 102 queries the network management system for information such as the port number and address corresponding to the BSSID.
  • BSSID Basic Service Set Identifier
  • the cellular communication device 101 transmits an interface establishment request to the non-cellular communication device 102 based on the queried port number and address of the non-cellular communication device 102, and when the non-cellular communication device 102 responds to the interface establishment request to the cellular communication device 101, the cellular The interface between the communication device 101 and the non-cellular communication device 102 is established.
  • the cellular communication device 101 can receive performance information and statistical information from the non-cellular communication device 102 over the interface.
  • the cellular communication device 101 determines the service transfer threshold for the user equipment to perform the service transfer according to the performance information and the statistical information.
  • the following two implementation manners are generally adopted:
  • the cellular communication device 101 generates a correspondence between the performance information and the statistical information according to the performance information and the statistical information, and selects, from the corresponding relationship, that the user equipment meets the service transfer performance requirement.
  • the statistical information is used as a service transfer threshold for the user equipment to perform service transfer.
  • the cellular communication device 101 generates a correspondence between the performance information and the statistical information according to the performance information and the statistical information, and determines, according to the correspondence, the current statistical information of the non-cellular communication device 102 in a corresponding relationship. Whether the performance information in the user meets the performance requirements of the user equipment for service transfer. If not satisfied, the cellular communication device 101 sets the service transfer threshold for the user equipment to perform service transfer such that the user equipment does not satisfy the threshold for transferring the service from the cellular communication network to the non-cellular communication network. Or, if Satisfied, the cellular communication device 101 sets the traffic diversion threshold to a threshold value that causes the user equipment to transfer traffic from the cellular communication network to the non-cellular communication network.
  • the foregoing method further includes:
  • the cellular communication device 101 sends a service transfer threshold when the user equipment performs service transfer to the user equipment. Therefore, the user equipment can determine, according to the service transfer threshold, whether the service can be transferred from the cellular communication network to the non-cellular communication network.
  • the cellular communication device 101 is a base station
  • the cellular communication device 101 sends the service transfer threshold to the user equipment through an air interface.
  • the cellular communication device is 101 is an SRC, RNC or other wireless communication node with similar coordination management
  • the cellular communication device The device 101 forwards the service transfer threshold to the user equipment through the base station.
  • the cellular communication device 101 may further assign the identity of the non-cellular communication device corresponding to the service handover threshold, such as a BSSID, an SSID (The service set identifier (Service Set Identifier), HESSID (Homogenous Extended Service Set Identifier) is delivered to the user equipment.
  • a BSSID The service set identifier (Service Set Identifier), HESSID (Homogenous Extended Service Set Identifier) is delivered to the user equipment.
  • the cellular communication device 101 can receive performance information and statistical information from at least one non-cellular communication device 102.
  • the cellular communication device 101 can generate the following correspondence, as shown in Table 1.
  • the non-cellular communication device i represents the i-th non-cellular communication device in the communication system 100
  • the non-cellular communication device group i represents the i-th group non-cellular communication device composed of a plurality of non-cellular communication devices in the communication system 100. group.
  • a non-cellular communication device i or a group of non-cellular communication device groups i corresponds to M group performance information and statistical information
  • the average transmission rate/average transmission delay respectively sent is represented by A u to A lM
  • the respectively transmitted load is used for B u Up to B lM
  • the uplink signal quality of the associated user equipment respectively sent is denoted by Cu to C lM
  • the downlink signal quality of the associated user equipment respectively sent is represented by D u to D lM
  • the available backhaul capacity respectively sent by E u Up to E lM indicates that the operating bandwidth of the separately transmitted non-cellular communication device is represented by F u to F lM
  • the packet error rate respectively transmitted is represented by G u to G u .
  • the cellular communication device 101 can perform the performance requirement when the user equipment performs the service transfer.
  • the performance requirement of the user equipment is the average transmission rate is A l2 , and the statistics corresponding to the A l2 are found in Table 1.
  • the load is B l2 , and the associated user
  • the uplink signal quality of the device is C l2
  • the downlink signal quality of the associated user equipment is D l2
  • the backhaul capacity of the non-cellular communication device is E l2
  • the working bandwidth of the non-cellular communication device is F l2
  • the packet error rate is G l2 .
  • the cellular communication device 101 can determine that the load threshold is a load threshold of B l2 , the uplink signal quality threshold of the user equipment is C l2 , the downlink signal quality threshold of the user equipment is D l2 , and the remaining backhaul capacity threshold of the non-cellular communication device is E L2 .
  • the working bandwidth threshold of the non-cellular communication device is F l2 , and the error rate threshold is G l2 .
  • the cellular communication device 101 can deliver the multiple service transfer thresholds to the user equipment. It should be noted that the above manner of determining multiple service transfer thresholds may not be accurate. In order to achieve the best user experience, the cellular communication device can be based on one of the statistical information when determining the service transfer threshold, and other statistical information is auxiliary.
  • the cellular communication device 101 finds the required performance corresponding in Table 1 according to the average transmission rate indicated by the required performance when the user equipment performs the service transfer is greater than a certain value or the average transmission delay is less than a certain value.
  • One or more loads are optional methods.
  • the cellular communication device directly sends the corresponding one or more loads as a load threshold to the user equipment, so that the user equipment can transfer the service to the non-cellular access device corresponding to the one or more loads.
  • the cellular communication device may further determine the uplink signal quality of the associated user equipment, the downlink signal quality of the associated user equipment, and the backhaul of the non-cellular communication device.
  • the capacity, the operating bandwidth of the non-cellular communication device, the packet error rate, and the like, one or more of the plurality of loads are selected as the load threshold.
  • the selection principle may be: a corresponding load corresponding to the downlink signal quality of the user equipment; a corresponding load of the uplink signal quality of the associated user equipment, and a corresponding load of the non-cellular communication equipment with a larger backhaul capacity.
  • the cellular communication device may further further according to the average transmission delay received from the non-cellular access device.
  • the load corresponding to the smaller average transmission delay is determined from the plurality of loads as the load threshold. For example, see Table 1-B.
  • the non-cellular communication device i represents the ith of the plurality of non-cellular communication devices, which corresponds to a plurality of sets of performance information and statistical information.
  • the cellular communication device can determine the load threshold according to Table 1-B. Assume that the performance requirement of the user equipment for service transfer is that the average transmission rate is not less than the average transmission rate il, and the average transmission rate and the average transmission delay from top to bottom in Table 1-B are successively decreased.
  • the cellular communication device can send the average transmission rate il to the average transmission rate iM corresponding to the load il to the load iM as a service transfer threshold to be sent to the user equipment. Further, in order to further set a reasonable service transfer threshold for the user equipment, the cellular communication device may consider the corresponding load with a smaller average transmission delay as the load threshold to be sent to the user equipment, for example, selecting the average transmission delay to be minimum. The load corresponding to the (average transmission delay iM) is sent to the user equipment as a load threshold.
  • the performance requirement of the user equipment when performing service transfer may be that the cellular communication device acquires the performance requirement specified by the user equipment when signing to the non-cellular communication network (usually stored in the core network device); or may be cellular communication
  • the cellular communication device 101 may use at least one of the following Operation method:
  • the load threshold is set to 2
  • the uplink signal quality threshold of the associated user equipment is C l2
  • the downlink signal quality threshold of the associated user equipment is set to D l2
  • the backhaul capacity threshold of the non-cellular communication device is E l2
  • the working bandwidth of the non-cellular communication device is
  • the threshold is F l2 and the error rate threshold is G l2 .
  • the user equipment may transfer the service to the non-cellular communication device i or the non-cellular communication network provided by the non-cellular communication device group i, but the at least one operation mode corresponds to the non-cellular operation mode.
  • the cellular communication device i or the non-cellular communication device group i may not be unique.
  • the cellular communication device may send the identifier of the non-cellular communication device i or the non-cellular communication device group i to the user equipment for service transfer, so that the user device knows the pair. Which of the non-cellular communication networks provided by the non-cellular communication device performs the service transfer.
  • the cellular communication device can determine whether the statistical information currently received by the non-cellular communication device meets the performance requirement of the user equipment when performing service transfer. If the cellular communication device determines that the non-cellular communication device i or the non-cellular communication device group i does not satisfy the performance requirements of the user equipment for service transfer.
  • the service transfer threshold setting for the cellular communication device to perform the service transfer of the user equipment is such that the user equipment does not satisfy the threshold for performing service transfer from the cellular communication network to the non-cellular communication network.
  • the cellular communication device 101 sets the service transfer threshold such that the user equipment must satisfy the non-cellular communication network to the non-cellular The threshold for the service transfer of a cellular communication network.
  • the non-cellular communication device i or the non-cellular communication device group i selected by the cellular communication device 101 may not currently be able to provide service to the user equipment.
  • the user equipment can transmit a list of the searched non-cellular communication devices to the cellular communication device 101, and when the cellular communication device 101 determines that the list includes the non-cellular communication device i or the non-cellular communication device group i, the cellular communication device
  • the service forwarding threshold corresponding to the non-cellular communication device i or the non-cellular communication device group i is sent to the user equipment, so that the user equipment transfers the service to the non-cellular communication device i or the non-cellular communication device group i according to the service transfer threshold.
  • a non-cellular communication network In a non-cellular communication network.
  • FIG. 3 is a schematic flowchart diagram of a method for determining a service transition threshold according to an embodiment of the present invention.
  • the non-cellular communication device is at least one WLAN AP.
  • the cellular communication device and the at least one WLAN AP provide services to the user equipment.
  • the statistical information sent by the non-cellular communication device is the load of the at least one WLAN AP
  • the performance information of the non-cellular communication device is the average transmission rate or the average transmission delay of the associated user equipment in the at least one WLAN AP
  • the service transfer threshold is The user equipment transfers the traffic to the load threshold of the WLAN provided by the at least one WLAN AP. As shown in FIG. 3, the following contents are included.
  • the cellular communication device receives an average transmission rate or an average transmission delay of the associated user equipment sent by the at least one WLAN AP, and an average transmission rate of the associated user equipment or a load of the WLAN AP corresponding to the average transmission delay.
  • the cellular communication device determines, according to an average transmission rate or an average transmission delay of the associated user equipment, and the load, a service transfer threshold for the user equipment to perform service transfer.
  • the cellular communication device finds the load of the WLAN AP corresponding to the performance requirement according to the performance requirement of the user equipment for performing service transfer.
  • the cellular communication device uses the load of the WLAN AP corresponding to the performance as a service transfer threshold.
  • the cellular communication device acquires a current load of the at least one WLAN AP
  • the cellular communication device can generate an average transmission rate of the associated user equipment and a correspondence between the loads of the corresponding WLAN APs, as shown in Table 2.
  • the performance requirement is that the average transmission rate of the associated user equipment is not less than the average transmission rate i2
  • the cellular communication device finds that the average transmission rate of the associated user equipment is not less than the average transmission rate i2 in Table 2, Corresponding to the load il of the WLAN AP i and the load i2 of the WLAN AP i.
  • the cellular communication device can send one of the load il and the load i2 as a load threshold to the user equipment for service transfer.
  • the performance requirement is that the average transmission rate of the associated user equipment is greater than the average transmission rate il
  • the cellular communication device determines that there is no load corresponding to the performance in the table 2, and the cellular communication
  • the device may set the load threshold such that the user equipment does not transfer traffic from the cellular communication device to the WLAN AP i, such as 0 or a negative number, since there may be no WLAN AP i with a load less than 0 or a negative number, the user equipment will not The service is transferred from the cellular communication network to the non-cellular communication network covered by the WLAN AP i.
  • the cellular communication device sends the group identifier (for example, the SSID) of the WLAN AP group corresponding to the load threshold to the user equipment, so that the user equipment identifies the WLAN AP group identified by the group identifier.
  • the cellular communication device may send the identifier of the WLAN AP i corresponding to the load threshold (for example, the BSSID) to the user equipment, so that the user equipment performs the WLAN AP i identified by the identifier.
  • the cellular communication device sends the load threshold to the user equipment, the channel identifier of the WLAN AP i corresponding to the load threshold is sent to the user equipment, so that the user equipment performs service transfer on the channel identified by the channel identifier.
  • one WLAN AP i uses one channel, then in this case, one WLAN AP i and the channel are corresponding.
  • a WLAN AP i can also use multiple channels.
  • the cellular communication device can also send the channel identifier used by the WLAN AP i to the user equipment.
  • the user equipment can transfer the service to one or more WLAN APs with the lowest load during the service transfer of the user equipment.
  • the load of a WLAN AP does not fully reflect the transmission conflict of the WLAN.
  • the increase of the associated user equipment will increase the uplink service to the WLAN AP.
  • the transmission conflict of the WLAN AP will be intensified, and the performance of the WLAN system will be drastically reduced, which will affect the experience of accessing all user equipments in the WLAN AP, resulting in all User equipment cannot get the required average transmission rate or average transmission delay.
  • the cellular communication device needs to consider the proportion of uplink and downlink services of the WLAN AP in addition to the load of the WLAN AP. See Table 3.
  • the average transmission rate il to the average transmission rate iM may not all be different. Therefore, the same average transmission rate corresponds to a plurality of different loads.
  • the load corresponding to the uplink-downlink service ratio (the uplink traffic volume is less than the following traffic volume) can be selected as the traffic transition threshold.
  • the user equipment determines the load threshold according to the performance requirement of the service transfer (corresponding to the average transmission rate/average transmission delay) and the uplink and downlink service ratio of the WLAN AP i. 4
  • the average transmission rate/average transmission delay il to the average transmission rate/average transmission delay iM is the performance requirement for the user equipment to perform service transfer.
  • the uplink and downlink service ratio is the smallest among all the uplink and downlink services in Table 3.
  • the load iM is taken as the load threshold.
  • the performance requirement may correspond to multiple WLAN APs (4 at least corresponding to WLAN AP i and WLAN AP i+1 ), and then multiple WLANs may be
  • the load corresponding to the WLAN AP with a small uplink and downlink service is selected as the load threshold and sent to the user equipment, so that the user equipment can transfer the service to the uplink and downlink.
  • the service is relatively small in the WLAN AP.
  • the load threshold determined according to the uplink-downlink service ratio may still be multiple, and the cellular communication device may also consider the packet loss rate of the WLAN AP, the bandwidth of the WLAN AP, and the signal quality of the associated user equipment (including the uplink signal quality or Downstream signal quality) to further determine the load threshold from multiple loads.
  • the cellular communication device can further filter the selected signal quality according to the average access delay, so as to set an optimal service transition threshold. See Table 1-B for similar. Refer to Table 4-6.
  • the load threshold is similar to that of the uplink and downlink services through the WLAN AP, and is not mentioned here. Table 4
  • the cellular communication device can also generate, according to all the performance information and statistical information received from the non-cellular communication device, the following table 7 to determine the load threshold for the user equipment to perform service transfer.
  • Table 7
  • the service transfer threshold when the user equipment performs service transfer is a signal quality threshold.
  • the cellular communication device can also refer to Table 7 to determine the signal quality threshold.
  • Table 7 For convenience of explanation, it is assumed that the values of the average transmission rate in Table 7 are successively decreased from top to bottom.
  • the performance requirement is that the average transmission rate of the associated user equipment is not less than the average transmission rate il. If the WLAN AP that meets the performance requirement cannot be found in Table 7, the cellular communication device will have the signal quality.
  • the threshold is set so that the signal quality of the user equipment must not exceed the threshold. The value makes it impossible for the user equipment to transfer traffic from the cellular communication network to the non-cellular communication network.
  • the average transmission rate il to iM satisfies the performance that the user equipment can perform service transfer. demand.
  • the cellular communication device can send any one of the signal quality il to the signal quality iM as a signal quality threshold of the user equipment to the user equipment, so that the user equipment can complete the service transfer from the cellular to the WLAN.
  • the cellular communication device can further consider the WLAN AP i load, bandwidth, packet error rate, and available backhaul capacity as auxiliary information, and determine a suitable signal quality threshold from the signal quality il to the signal quality iM.
  • the performance of the user equipment for service transfer, and the current line of the load, bandwidth, packet error rate, and available backhaul capacity of the WLAN AP i correspond to the last line in Table 7, and the signal quality iM corresponding to the last line is used as the signal quality of the service transfer. Threshold.
  • the cellular communication device can further filter the selected signal quality according to the average access delay, so as to set an optimal service transition threshold. See Table 1-B for similar.
  • FIG. 4 is a schematic structural diagram of a cellular communication device 400 having the same functions as the cellular communication device 100 according to an aspect of an embodiment of the present invention.
  • the cellular communication device 400 can perform the method actions of the cellular communication device 100 to determine a traffic transfer threshold when the user equipment is performing a service transfer.
  • the cellular communication device 400 includes at least a receiver 401 and a processor 402.
  • the receiver 401 is configured to receive performance information sent by the non-cellular communication device and statistical information of the non-cellular communication device corresponding to the performance information.
  • the processor 402 is configured to determine, according to the performance information and the statistical information, a service transfer threshold when the user equipment performs a service transfer.
  • the performance information in this embodiment is in the non-cellular The average transmission rate or the average access delay of the associated user equipment in the communication device; the statistical information is the load of the non-cellular communication device, the uplink signal quality of the associated user equipment, and the downlink signal quality of the associated user equipment And at least one of available backhaul capacity of the non-cellular communication device, an uplink and downlink traffic ratio of the non-cellular communication device, an operating bandwidth of the non-cellular communication device, and a packet error rate of the non-cellular communication device.
  • the cellular communication device 400 further includes a transmitter 403 for transmitting a service transfer threshold determined by the processor 402 to the user equipment. After the user equipment receives the service transfer threshold, the service may be transferred from the cellular communication device 400 to the non-cellular communication device according to the service transfer threshold.
  • the transmitter 403 can also be configured to transmit the identity of the non-cellular communication device to the user equipment. Since the user equipment may not be within the signal coverage of the non-cellular communication device, even if the transmitter 403 transmits the identifier of the non-cellular communication device to the user equipment, the user equipment cannot Cellular communication equipment performs service transfer. Therefore, before the transmitter 403 sends the non-cellular communication device to the user equipment, the receiver 401 may receive, by the user equipment, a list of non-cellular communication devices searched by the user equipment, and Processor 402 determines if the list includes the non-cellular communication device. If the processor 402 determines that the non-cellular communication device is included in the list, the transmitter 403 transmits the identity of the non-cellular communication device to the user equipment.
  • the receiver 401 is further configured to receive a performance requirement when the user equipment sent by the user equipment performs a service transfer.
  • a performance requirement when the user equipment sent by the user equipment performs a service transfer.
  • the processor 402 can determine a service transfer threshold that satisfies the performance requirement of the user equipment when performing service transfer according to a preset rule. The performance requirements of the user equipment for service transfer can be found in the description of the method embodiment.
  • the processor 402 can determine according to the performance information and the statistical information.
  • the service transfer threshold when the user equipment performs service transfer includes the following two possible implementation manners.
  • the processor 4024 generates a correspondence between the performance information and the statistical information according to the performance information and the statistical information.
  • the correspondence may be generated for each cellular communication device or a group of non-cellular communication devices constructed for a plurality of non-cellular communication devices. Refer to the description in Table 1 - Table 7.
  • the processor 402 selects, from the correspondence, statistical information that satisfies performance requirements when the user equipment performs service transfer, as the service transfer threshold.
  • the receiver 401 may receive a performance requirement when the user equipment sends a service transfer by using the user equipment.
  • the processor 402 generates a correspondence between the performance information and the statistical information according to the performance information and the statistical information.
  • the correspondence may be generated for each cellular communication device or a group of non-cellular communication devices constructed for a plurality of non-cellular communication devices. Refer to the instructions in Table 1 - Table 7.
  • the processor 402 determines, according to the correspondence, whether the performance information corresponding to the current statistical information of the non-cellular communication device meets the performance requirement of the user equipment for performing service transfer; if not, the processor 402 sets the service transition threshold.
  • the processor 402 sets the traffic transfer threshold such that the user The device satisfies a threshold value for transferring traffic from the cellular communication device 400 to the non-cellular communication device.
  • the cellular communication device determines, according to performance information and statistical information received from the non-cellular communication device, a service transfer threshold when the user equipment is to perform service transfer, and the performance information and statistics.
  • the information actually reflects, directly or indirectly, the performance that the non-cellular communication network can provide for the user equipment after the user equipment transfers the service to the non-cellular communication network for the user equipment that is to be transferred. Further, the user equipment can also specifically transfer the service to a non-cellular communication network that satisfies its performance requirements for service transfer.

Abstract

本发明实施例提供一种业务转移门限的确定方法和蜂窝通信设备,公开了蜂窝通信设备接收非蜂窝通信设备发送的性能信息和所述性能信息对应的统计信息;所述蜂窝通信设备根据所述性能信息和所述统计信息确定用户设备进行业务转移时的业务转移门限。应用本发明实施例提供的技术方案解决了用户设备将业务从蜂窝通信网络向非蜂窝通信网络进行业务转移时业务转移门限如何确定的技术问题。

Description

一种业务转移门限的确定方法和蜂窝通信设备 技术领域
本发明实施例涉及无线通信领域, 具体涉及一种业务转移门限的确定 方法和蜂窝通信设备。 背景技术
为了满足用户设备的移动数据流量剧增的需求, 在蜂窝通信网络中部 署至少一个非蜂窝通信网络, 用户设备可以将部分或全部业务从蜂窝通信 网络转移到非蜂窝通信网络或者从非蜂窝通信网络转移到蜂窝通信网络, 实现降低蜂窝通信网络负载, 提高整个通信系统的吞吐量的目的。
目前研究表明, 在用户设备从蜂窝通信网络向非蜂窝通信网络进行业 务转移的过程中, 为用户设备提供服务的蜂窝通信设备需要向该用户设备 发送用于该用户设备进行业务转移的业务转移门限。 用户设备可以根据该 业务转移门限来确定是否将业务从蜂窝通信网络转移到非蜂窝通信网络。
因此, 如何确定用户设备进行业务转移时的业务转移门限是亟待解决 的问题。 发明内容
本发明实施例提供一种业务转移门限的确定方法和蜂窝通信设备, 解 决了用户设备将业务从蜂窝通信网络向非蜂窝通信网络进行业务转移时业 务转移门限如何确定的技术问题。
本发明实施例第一方面提供一种蜂窝通信设备,
接收器, 用于接收非蜂窝通信设备发送的性能信息和所述性能信息对 应的统计信息;
处理器, 用于根据所述性能信息和所述统计信息确定用户设备进行业 务转移时的业务转移门限;
其中, 所述性能信息为在所述非蜂窝通信设备中关联用户设备的平均 传输速率或平均接入时延; 所述统计信息为所述非蜂窝通信设备的负载、 所述关联用户设备的上行信号质量、 所述关联用户设备的下行信号质量、 所述非蜂窝通信网络的可用回程容量、 所述非蜂窝通信网络的上下行业务 比例、 所述非蜂窝通信网络的工作带宽和所述非蜂窝通信网络的误包率的 至少一个。
基于第一方面, 在第一方面的第一种可能实现方式中, 所述蜂窝通信 网络还包括:
发射器, 用于向所述用户设备发送所述业务转移门限。
基于第一方面或第一方面的第一种可能实现方式, 在第一方面的第二 种可能实现方式中, 所述发射器还用于向所述用户设备发送所述非蜂窝通 信设备的标识。
基于第一方面的第二种可能实现方式, 在第一方面的第三种可能实现 方式中, 所述接收器还用于在所述发射器向所述用户设备发送所述非蜂窝 通信设备的标识之前, 接收所述用户设备发送的所述用户设备搜索到的非 蜂窝通信设备的列表;
所述处理器还用于判断所述列表是否包含所述非蜂窝通信设备; 所述发射器具体用于在所述处理器判断出所述列表包含所述非蜂窝通 信设备时, 向所述用户设备发送所述非蜂窝通信设备的标识。
基于第一方面至第一方面的第三种可能实现方式的任意一种, 在第一 方面的第四种可能实现方式中, 所述处理器用于才艮据所述性能信息和所述 统计信息确定所述用户设备进行业务转移时的业务转移门限, 包括: 所述处理器, 用于 4艮据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系, 并从所述对应关系中选择出满足所述用户 设备进行业务转移性能需求的统计信息作为所述业务转移门限。 基于第一方面至第一方面的第三种可能实现方式的任意一种, 在第一 方面的第五种可能实现方式中, 所述处理器用于才艮据所述性能信息和所述 统计信息确定所述用户设备进行业务转移时的业务转移门限, 包括: 所述处理器, 用于 4艮据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系, 并根据所述对应关系确定所述非蜂窝通信 设备当前统计信息对应的性能信息是否满足所述用户设备进行业务转移的 性能需求;
如果不满足, 所述处理器还用于将所述业务转移门限设置为使得所述 用户设备不满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信网络的 门限值; 或者, 如果满足, 所述处理器还用于将所述业务转移门限设置为 使得所述用户设备满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信 网络的门限值。
基于第一方面的第四种可能实现方式或第一方面的第五种可能实现方 式, 所述接收器还用于接收所述用户设备发送的所述用户设备进行业务转 移时的性能需求。
本发明实施例第二方面提供一种业务转移门限的确定方法, 包括: 蜂窝通信设备接收非蜂窝通信设备发送的性能信息和所述性能信息对 应的统计信息;
所述蜂窝通信设备根据所述性能信息和所述统计信息确定用户设备进 行业务转移时的业务转移门限;
其中, 所述性能信息为在所述非蜂窝通信设备中关联用户设备的平均 传输速率或平均接入时延; 所述统计信息为所述非蜂窝通信设备的负载、 所述关联用户设备的上行信号质量、 所述关联用户设备的下行信号质量、 所述非蜂窝通信设备的可用回程容量、 所述非蜂窝通信设备的上下行业务 比例、 所述非蜂窝通信设备的工作带宽和所述非蜂窝通信设备的误包率的 至少一个。 基于第二方面, 在第二方面的第一种可能实现方式中, 所述方法还包 括:
所述蜂窝通信设备向所述用户设备发送所述业务转移门限。
基于第二方面或第二方面的第一种可能实现方式中, 在第二方面的第 二种可能实现方式中, 所述方法还包括:
所述蜂窝通信设备向所述用户设备发送所述非蜂窝通信设备的标识。 基于第二方面的第二种可能实现方式, 在第二方面的第三种可能实现 方式中, 在所述蜂窝通信设备向所述用户设备发送所述非蜂窝通信设备的 标识之前, 所述方法还包括: 所述蜂窝通信设备接收所述用户设备发送的 所述用户设备搜索到的非蜂窝通信设备的列表;
所述蜂窝通信设备向所述用户设备发送所述非蜂窝通信设备的标识, 包括: 所述蜂窝通信设备判断所述列表是否包含所述非蜂窝通信设备; 如 果包含, 所述蜂窝通信设备向所述用户设备发送所述非蜂窝通信设备的标 识。
基于第二方面至第二方面的第三种可能实现方式, 在第二方面的第四 种可能实现方式中, 所述蜂窝通信设备根据所述性能信息和所述统计信息 确定满足所述用户设备进行业务转移性能需求的业务转移门限, 包括: 所述蜂窝通信设备根据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系;
所述蜂窝通信设备从所述对应关系中选择出满足所述用户设备进行业 务转移性能需求的统计信息作为所述业务转移门限。
基于第二方面至第二方面的第三种可能实现方式, 在第二方面的第五 种可能实现方式中, 所述蜂窝通信设备根据所述性能信息和所述统计信息 确定所述所述用户设备进行业务转移时的业务转移门限, 包括:
所述蜂窝通信设备根据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系; 所述蜂窝通信设备根据所述对应关系, 确定所述非蜂窝通信设备当前 统计信息对应的性能信息是否满足所述用户设备进行业务转移的性能需 求;
如果不满足, 所述蜂窝通信设备将所述业务转移门限设置为使得所述 用户设备不满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信网络的 门限值; 或者, 如果满足, 所述蜂窝通信设备将所述业务转移门限设置为 使得所述用户设备满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信 网络的门限值。
基于第二方面的第四种可能实现方式或第五种可能实现方式, 在第二 方面的第六种可能实现方式中, 所述方法还包括:
所述蜂窝通信设备接收所述用户设备发送的所述用户设备进行业务转 移时的性能需求。
在本发明实施例描述的方法和蜂窝通信设备中, 蜂窝通信设备根据从 非蜂窝通信设备接收到的性能信息和统计信息来确定用户设备将要进行业 务转移时的业务转移门限, 这些性能信息和统计信息实际上对于该将要进 行业务转移的用户设备来说直接或间接反映了在用户设备将业务转移到这 些非蜂窝通信网络后, 非蜂窝通信网络为该用户设备所能提供的性能。 进 一步地, 用户设备也可以有针对性地将业务转移到满足其进行业务转移时 性能需求的非蜂窝通信网络中。 应用本发明实施例提供的技术方案, 可以 达到合理设置业务转移门限的目的, 从而避免由于业务转移门限不合理而 导致用户设备将业务转移到某个非蜂窝通信设备后用户体验下降。 附图说明
图 1为本发明实施例提供的一种通信系统 100的架构示意图;
图 2为本发明实施例一方面提供的一种业务转移门限的确定方法的流 程示意图; 图 3为本发明实施例一方面提供一种业务转移门限的确定方法的流程 示意图;
图 4为本发明实施例一方面提供的蜂窝通信设备 400的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进 行清楚、 完整地描述。 显然, 如下描述的具体实施例仅是本发明的一部分 实施例, 对于本领域的技术人员而言, 本发明还可以不拘泥于这些特定的 细节的其它实施例来实施。
本发明各实施例的蜂窝通信网络可以为全球移动通讯( global system of mobile communication, 简称 GSM ) 网络、 码分多址 ( code division multiple access, 简称 CDMA )网络、 宽带码分多址( wideband code division multiple access,简称 WCDMA )网络、通用分组无线业务( general packet radio service, 简称 GPRS ) 网络、 长期演进( long term evolution, 简称 LTE ) 网络、 LTE 频分双工( frequency division duplex, 简称 FDD )网络、 LTE时分双工( time division duplex, 简称 TDD ) 网络、 通用移动通信系统(universal mobile telecommunication system, 简称 UMTS )网络等。 相应的, 蜂窝通信设备可 以是 GSM或 CDMA中的基站( base transceiver station, 简称 BTS ), 可以 是 WCDMA 中的无线网络控制器 (radio network controller, RNC)、 基站 ( nodeb, 简称 NB ), 也可以是 LTE中的演进型基站( evolutional node B, 简称 eNB或 eNodeB ), 具体也可以是 LTE中的宏基站 ( macro eNB )或小 基站(pico eNB )或其他具有协调管理功能的无线通信节点, 例如, 统一网 控制器( single radio access network controller, 简称 SRC ),本发明实施例并 不限定。
非蜂窝通信网络, 可以是使用无线保真 ( wireless fidelity, 简称 Wi-Fi ) 技术的无线局域网(wireless local network, 简称 WLAN )。 非蜂窝通信设备 可以是 WLAN接入点 ( access point, 简称 AP )。
本发明各实施例中的用户设备, 支持在蜂窝通信网络和非蜂窝通信网 络中工作。 在蜂窝通信网络中, 用户设备可称之为移动终端 (mobile terminal ), 移动用户设备等。 在非蜂窝通信网络中, 用户设备还可以称为站 台 (station, 简称 STA )。 用户设备可以是移动电话(或称为"蜂窝"电话) 和具有移动终端功能的计算机, 例如, 可以是便携式、 袖珍式、 手持式、 计算机内置的或者车载的移动装置, 本发明实施例不做限定。
本发明各实施例中, 已经成功接入非蜂窝通信设备的用户设备, 称为 该非蜂窝通信设备的关联用户设备。 所述关联用户设备, 可以是打开 Wi-Fi 功能直接接入到非蜂窝通信设备的用户设备, 也可以是从蜂窝通信网络成 功业务转移到非蜂窝通信设备的用户设备。 图 1 为本发明实施例提供的一种通信系统 100的架构示意图。 如图 1 所示, 通信系统 100 包括提供蜂窝通信网络覆盖的至少一个蜂窝通信设备 101以及提供非蜂窝通信网络覆盖的至少一个非蜂窝通信设备 102。 一个蜂 窝通信设备 101的信号覆盖范围内可以部署至少一个非蜂窝通信设备 102。 用户设备的业务转移可以是将在蜂窝通信网络的业务转移到非蜂窝通信网 络, 也可以是将在非蜂窝通信网络的业务转移到蜂窝通信网络, 还可以是 将在非蜂窝通信网络的业务转移到另一个非蜂窝网络中。
鉴于本发明实施例主要解决的技术问题是如何确定用户设备从蜂窝通 信网络向非蜂窝通信网络进行业务转移的业务转移门限。 下面各个实施例 中, 用户设备进行业务转移指用户设备将在蜂窝通信网络的部分或全部业 务向非蜂窝通信网络进行转移。 为了实现用户设备的业务转移, 用户设备 可以根据用于进行业务转移的业务转移门限, 来确定是否可以将在蜂窝网 的业务转移到非蜂窝网中。 业务转移门限可以包括负载门限、 用户设备的 信号质量门限(信号质量门限包括用户设备的上行信号质量门限和用户设 备的下行信号质量门限)、 非蜂窝通信设备的可用回程容量门限、 非蜂窝通 信设备的上下行业务比门限、 非蜂窝通信设备的工作带宽门限和非蜂窝通 信设备的误包率门限中的至少一个。
需要进一步说明的是, 为了实现用户设备与通信系统 100 的通信, 在 图 1 中还包括核心网设备以及提供业务内容服务的互联网 (Internet )服务 器等。 在蜂窝通信设备 101为基站(例如 eNB、 BTS或 BS等)时, 该基站 与核心网设备之间通过 S 1接口交互各种信息, 用户设备通过空口与蜂窝通 信系统 101交互各种信息,蜂窝通信系统 101之间通过 X2接口交互各种信 息。 在蜂窝通信设备 101为 SRC、 RNC或其它具有类似协调管理功能的无 线通信节点时, 蜂窝通信设备 101 可控制基站(图中未示出) 与非蜂窝通 信设备 102进行协调, 用户设备可通过蜂窝通信设备 101所控制的基站或 非蜂窝通信设备 102与该蜂窝通信设备 101交互各种信息。 以下各个实施 例均可以区分为蜂窝通信设备 101为基站, 和蜂窝通信设备 101为 SRC、 RNC或其它具有类似协调管理功能的无线通信节点这两种情况。为了简洁, 统一使用蜂窝通信设备这一术语。
基于图 1所示的通信系统 100,图 2为本发明实施例一方面提供的一种 业务转移门限的确定方法的流程示意图。 如图 2 所示, 该方法包括以下内 容。
201 , 蜂窝通信设备 101接收非蜂窝通信设备 102发送的性能信息和所述 性能信息对应的统计信息。
一个非蜂窝通信设备发送的性能信息和所述性能信息对应的统计信息 为一组或多组。 这一组或多组, 可以是非蜂窝通信设备在不同时间 (可能 包括当前时间)发送的, 或者经过一段时间的统计后发送的。
202, 蜂窝通信设备 101根据所述性能信息和所述统计信息确定用户设 备进行业务转移的业务转移门限。
在 201和 202中, 所述性能信息为在非蜂窝通信设备 102中关联用户 设备的平均传输速率或平均接入时延;所述统计信息为非蜂窝通信设备 102 的负载、 关联用户设备的上行信号质量、 所述关联用户设备的下行信号质 量、 非蜂窝通信设备 102的可用回程容量、 非蜂窝通信设备 102的上下行 业务比例、 非蜂窝通信设备的工作带宽和非蜂窝通信设备 102 的误包率中 的至少一个。
非蜂窝通信设备中关联用户设备的平均传输速率为非蜂窝通信设备在 统计周期内所有关联用户设备的上行传输速率的平均、 所有关联用户设备 的下行传输速率的平均值, 或所有关联用户设备的上行传输速率和下行传 输速率的总平均传输速率。 例如, 在某一个统计周期内非蜂窝通信设备内 关联用户设备为用户设备 A, 用户设备 B和用户设备 C。 非蜂窝通信设备 到用户设备 A,用户设备 B和用户设备 C的下行传输速率分别为 lMbps(兆 比特 /每秒),2Mbps和 5Mbps; 用户设备八, 用户设备 B和用户设备 C到非 蜂窝通信设备的上行传输速率分别为 2Mbps,6Mbps和 4Mbps。一种可能是, 关联用户设备的平均上行传输速率为( 1+2+5 ) /3=2Mbps, 关联用户设备的 平均下行传输速率为 (2+6+4)/3=4Mbps。 另一种可能是关联用户设备的平均 传输速率为总平均传输速率 2+4=6Mbps。
非蜂窝通信设备中关联用户设备的平均接入时延为非蜂窝通信设备在 统计周期内统计所有关联用户设备的平均上行接入时延和平均下行接入时 延。 平均上行接入时延是关联用户设备在统计周期内多次发包从退避 ( backoff )开始到退避结束的平均持续时间。 例如关联用户设备 A在统计 周期内共发送 5 次数据包, 每次退避开始到退避结束的持续时间分别为 0.1ms (毫秒 ),0.02ms,0.36ms,1.2ms和 0.8ms。 则用户设备 A的上行平均接入 时延为(0.1+0.02+0.36+1.2+0.8)/5=0.496ms。 关联用户设备的平均下行接入 时延是非蜂窝通信设备在统计周期内多次发包从退避开始到结束的平均持 续时间。 特别注意的是, 关联用户设备的平均下行接入时延是指非蜂窝通 信设备对所有下行数据包进行统计的平均接入时延,也可以是区分各个 UE 的下行数据包所进行统计的下行平均接入时延。 需要说明的是, 在 802.11 标准中关联用户设备的上行平均接入时延或下行平均接入时延都可称为基 本接入集平均接入时延 ( BSSAverageAccessDelay )。非蜂窝通信设备将其针 对所有下行数据包统计到的 B S SAverageAccessDelay, 在信标 (beacon)帧中 进行广播, 以便未关联到该非蜂窝通信设备的用户设备获知该非蜂窝通信 设备的下行平均接入时延。
非蜂窝通信设备的负载包括: 关联用户设备的数量、 信道利用率 ( channel utilization ), 可用 々准入容量 ( available admission capacity )。 其 中, 信道利用率是指非蜂窝通信设备感知到信道忙的持续时间占观察时间 窗的比例。 可用的准入容量是指非蜂窝通信设备 102剩余的准入容量, 例 如非蜂窝通信设备的剩余准入容量为 2Mbps, 若用户设备的所需传输速率 为 4Mbps, 由于非蜂窝通信设备的剩余准入容量达不到 4Mbps, 则不能准 入该用户设备接入非蜂窝通信设备。
关联用户设备的上行信号质量和关联用户设备的下行信号质量均包括 SSI(receive signal strength indicator,接^:信号强度指示)或 CPI(received channel power indicator,接 4丈信道功率指示)或 SNI ( received signal to noise indicator, 接收信噪比指示)。 非蜂窝通信设备的可用回程容量为非蜂窝通 信设备 102到互联网服务器的有线链路剩余的传输容量。 非蜂窝通信设备 的上下行业务比例为非蜂窝通信设备成功接收的数据包个数除以非蜂窝通 信设备成功发送的数据包个数。 所述非蜂窝通信设备的工作带宽包括, 例 如 IEEE 802.11b规定非蜂窝通信设备只能工作在 20MHz (兆赫兹) 的带宽 上, 而 IEEE802.11n规定非蜂窝通信设备可以自适应调整工作带宽为 20 MHz或 40MHz,而 IEEE802.11ac规定非蜂窝通信设备可以自适应调整工作 带宽为 20 MHz, 40 MHz或80MHz。 非蜂窝通信设备的误包率包含非蜂窝 通信设备的上行误包率和非蜂窝通信设备的下行误包率。 其中, 由非蜂窝 通信设备统计下行误包率, 例如非蜂窝通信设备发送下行数据包, 但是在 指定时间内没有收到用户设备的反馈,则认为用户设备接收发生误包。 非蜂 窝通信设备统计的误包次数除以总下行数据包的传输次数, 可以作为下行 误包率。 非蜂窝通信设备可以针对接入该非蜂窝通信设备的每个用户设备 统计下行误包率, 也可以是非蜂窝通信设备针对接入该非蜂窝通信设备的 所有用户设备统计下行误包率。 类似的, 接入非蜂窝通信设备的用户设备 可以统计上行误包率, 并将该上行误包率上报给该非蜂窝通信设备。 非蜂 窝通信设备可以将用户设备上报的上行误包率进行算术平均。 非蜂窝通信 设备可以将上行误包率的算术平均值和下行误包率发送给蜂窝网接入设 备, 也可以将上行误包率的算术平均值和下行误包率求平均后作为一个误 包率发送给蜂窝通信设备。
在 201中, 蜂窝通信设备 101接收非蜂窝通信设备 102发送的性能信 息和所述性能信息对应的蜂窝通信设备的统计信息, 可以包括以下几种情 况:
( 1 )蜂窝通信设备 101和非蜂窝通信设备 102集成在同一物理设备上, 又叫做 "共站"。
在这种情况( 1 )下, 蜂窝通信设备 101在同一物理设备内部接收非蜂 窝通信设备 102发送的性能信息和统计信息。
( 2 )蜂窝通信设备 101和非蜂窝通信设备 102没有集成在同一物理设 备上,但是蜂窝通信设备 101具有非蜂窝通信网络的无线控制器( AC,access controller )功能。
在这种情况( 2 )下, 蜂窝通信设备 101和非蜂窝通信设备 102可釆用 CAPWAP ( control and provisioning of wireless access points , 无线接入点控 制)协议来实现蜂窝通信设备 101从非蜂窝通信设备 102接收性能信息和 统计信息。 具体地, 非蜂窝通信设备 102可以按照 CAPWAP协议中规定的 自动发现功能, 发现蜂窝通信设备 101, 并建立 CAPWAP隧道。 蜂窝通信 设备 101可从建立的 CAPWAP隧道上接收非蜂窝通信设备 102发送的性能 信息和统计信息。
( 3 )蜂窝通信设备 101和非蜂窝通信设备 102之间建立一个新的接口。 在这种情况( 3 )下, 蜂窝通信设备 101和非蜂窝通信设备 102可釆用 请求-响应的方式建立蜂窝通信设备 101和非蜂窝通信设备 102之间用于传 输上述性能信息和统计信息的接口。例如,用户设备使用 Wi-Fi技术搜索非 蜂窝通信设备, 用户设备可以将搜索到的非蜂窝通信设备 102 的标识, 例 如基本服务集标识(BSSID, Basic Service Set Identifier), 发送给蜂窝通信 设备 102。 蜂窝通信设备 102向网络管理系统查询该 BSSID对应的端口号 和地址等信息。 蜂窝通信设备 101根据查询到的非蜂窝通信设备 102的端 口号和地址向该非蜂窝通信设备 102发送接口建立请求, 待该非蜂窝通信 设备 102向蜂窝通信设备 101 响应接口建立请求时, 则蜂窝通信设备 101 和非蜂窝通信设备 102之间的接口建立完成。 蜂窝通信设备 101可以通过 该接口从非蜂窝通信设备 102接收性能信息和统计信息。
在 202中, 蜂窝通信设备 101根据所述性能信息和所述统计信息确定 所述用户设备进行业务转移的业务转移门限, 在本发明实施例中, 通常可 以釆取如下的两种实现方式:
( 1 )蜂窝通信设备 101根据所述性能信息和所述统计信息生成所述性 能信息和所述统计信息的对应关系, 并从所述对应关系中选择出满足所述 用户设备进行业务转移性能需求的统计信息作为所述用户设备进行业务转 移的业务转移门限。
( 2 )蜂窝通信设备 101根据所述性能信息和所述统计信息生成所述性 能信息和所述统计信息的对应关系, 并根据所述对应关系确定非蜂窝通信 设备 102 的当前统计信息在对应关系中的性能信息是否满足所述用户设备 进行业务转移的性能需求。 如果不满足, 蜂窝通信设备 101 将所述用户设 备进行业务转移的业务转移门限设置为使得所述用户设备不满足将业务从 所述蜂窝通信网络向所述非蜂窝通信网络进行转移的门限值; 或者, 如果 满足, 蜂窝通信设备 101 将所述业务转移门限设置为使得所述用户设备将 业务从蜂窝通信网络向非蜂窝通信网络进行转移的门限值。
可选地, 在 202之后, 上述方法还包括:
203 , 蜂窝通信设备 101将所述用户设备进行业务转移时的业务转移门 限发送给所述用户设备。 从而, 所述用户设备可以根据所述业务转移门限 判断是否可以从蜂窝通信网络将业务转移到非蜂窝通信网络中。 蜂窝通信 设备 101为基站时, 蜂窝通信设备 101通过空口将所述业务转移门限发送 给所述用户设备, 蜂窝通信设备为 101为 SRC、 RNC或其他具有类似协调 管理的无线通信节点时, 蜂窝通信设备 101 将所述业务转移门限通过所述 基站转发给所述用户设备。
可选地, 为了用户设备能够准确识别这个业务转移门限是对应于哪个 或哪些非蜂窝通信设备, 蜂窝通信设备 101 还可以将这个业务转移门限对 应的非蜂窝通信设备的标识, 例如 BSSID、 SSID (服务集标识, Service Set Identifier), HESSID (同类扩展服务集标识, Homogenous Extended Service Set Identifier)下发给用户设备。
在本发明实施例中, 蜂窝通信设备 101可以从至少一个非蜂窝通信设备 102接收性能信息和统计信息, 蜂窝通信设备 101可以生成如下对应关系, 见表 1。
表 1-A
Figure imgf000014_0001
备 i或非
蜂窝通 Al2 Bl2 cl2 Dl2 El2 Fl2 Gl2 信设备
组 i
AiM BiM CiM DiM EiM FiM GiM
在表 1中, 非蜂窝通信设备 i表示通信系统 100中第 i个非蜂窝通信设 备,非蜂窝通信设备组 i表示通信系统 100中由多个非蜂窝通信设备构成的 第 i组非蜂窝通信设备组。 一个非蜂窝通信设备 i或一组非蜂窝通信设备组 i对应 M组性能信息和统计信息, 分别发送的平均传输速率 /平均传输时延 用 Au至 AlM表示, 分别发送的负载用 Bu至 BlM表示, 分别发送的关联用 户设备的上行信号质量用 Cu至 ClM表示, 分别发送的关联用户设备的下行 信号质量用 Du至 DlM表示,分别发送的可用回程容量用 Eu至 ElM表示,分 别发送的非蜂窝通信设备的工作带宽用 Fu至 FlM表示,分别发送的误包率 用 Gu至 Gu表示。蜂窝通信设备 101可以根据该用户设备进行业务转移时 的性能需求, 例如用户设备的性能需求为平均传输速率为 Al2, 在表 1中找 到 Al2对应的统计信息包括负载为 Bl2,关联用户设备的上行信号质量为 Cl2, 关联用户设备的下行信号质量为 Dl2,非蜂窝通信设备的回程容量为 El2,非蜂 窝通信设备的工作带宽为 Fl2,误包率为 Gl2。蜂窝通信设备 101可以确定负 载门限为负载门限为 Bl2,该用户设备的上行信号质量门限为 Cl2,该用户设 备的下行信号质量门限为 Dl2,非蜂窝通信设备的剩余回程容量门限为 El2,非 蜂窝通信设备的工作带宽门限为 Fl2, 误包率门限为 Gl2。 蜂窝通信设备 101 可以将这多个业务转移门限下发给用户设备。 应该注意的是, 上述确定多个业务转移门限的方式, 可能并不准确。 为了达到最佳的用户体验, 蜂窝通信设备在确定业务转移门限时, 可以以 其中一种统计信息为基础, 其他统计信息为辅助。 例如, 蜂窝通信设备 101 为了设置负载门限, 根据用户设备进行业务转移时所需性能所指示的平均 传输速率大于某个值或平均传输时延小于某个值, 在表 1 中找到所需性能 对应的一个或多个负载。 一种可选方式是蜂窝通信设备直接将对应的一个 或多个负载作为负载门限下发给用户设备, 使得用户设备可以将业务转移 到一个或多个负载所对应的非蜂窝接入设备中。 由于在表 1 中满足所需性 能的负载可能是多个, 另一种可选方式蜂窝通信设备可以进一步根据关联 用户设备的上行信号质量、 关联用户设备的下行信号质量、 非蜂窝通信设 备的回程容量、 非蜂窝通信设备的工作带宽、 误包率等, 从这多个负载中 选择出一个或多个作为负载门限。 选择的原则可以是: 关联用户设备的下 行信号质量更强的所对应的负载; 关联用户设备的上行信号质量更强的所 对应的负载, 非蜂窝通信设备的剩余回程容量更大所对应的负载; 非蜂窝 接入设备的工作带宽更大的所对应的负载; 误包率更小的所对应的负载中 的至少一个选择方式。
进一步, 需要注意的是, 如果用户设备所指示的性能需求为平均传输 速率不小于某个值, 那么蜂窝通信设备也可以根据从非蜂窝接入设备中接 收到的平均传输时延, 来更进一步从多个负载中确定出平均传输时延更小 所对应的负载作为负载门限。 举个例子, 如表 1-B。
表 1-B 平均传输速 负载 平均传输延 上行信号质量 /可用回程容 率丄1 il 迟 il 量 /工作带宽 /误包率 非蜂窝通
平均传输速 负载 平均传输延
信设备 i
率丄2 i2 迟 i2 平均传输速 负载 平均传输延
率 iM iM 迟 iM 在表 1-B中, 非蜂窝通信设备 i表示多个非蜂窝通信设备中第 i个, 其 对应了多组性能信息和统计信息。 在这个例子中, 蜂窝通信设备可以根据 表 1-B来确定负载门限。 假设用户设备进行业务转移时的性能需求为平均 传输速率不小于平均传输速率 il, 且表 1-B 中从上到下平均传输速率和平 均传输时延依次递减。 由于平均传输速率 il到平均传输速率 iM都满足该 性能需求, 蜂窝通信设备可以将平均传输速率 il到平均传输速率 iM所分 别对应的负载 il到负载 iM都作为业务转移门限下发给用户设备。 更进一 步, 为了更进一步为用户设备设置合理的业务转移门限, 蜂窝通信设备可 以考虑平均传输时延较小的所对应的负载, 作为负载门限下发给用户设备, 例如, 选择平均传输时延最小 (平均传输延迟 iM )所对应的负载, 作为负 载门限下发给用户设备。
需要说明的是, 用户设备进行业务转移时的性能需求, 可以是蜂窝通 信设备获取用户设备在向非蜂窝通信网络签约时指定的性能需求 (通常保 存在核心网设备中); 也可以是蜂窝通信设备从所述用户设备接收到的用户 设备进行业务转移时的性能需求; 也可以是蜂窝通信设备通过评估该用户 设备在蜂窝通信设备内的历史平均性能; 也可以是蜂窝通信设备估计该用 户设备未来在蜂窝通信设备内可以获得的性能; 也可以是蜂窝通信设备出 于降低该蜂窝通信网络的负载的原因, 而为用户设备设置的一个可以将业 务转移到非蜂窝网络的条件, 在这个条件下, 该用户设备很容易将业务转 移到非蜂窝网络。
作为一种实现方式,如果蜂窝通信设备要选择将非蜂窝通信设备 i或非 蜂窝通信设备组 i所提供的非蜂窝通信网络作为用户设备业务转移的目标, 蜂窝通信设备 101可釆用以下至少一个操作方式: 负载门限设置为 2, 关联用户设备的上行信号质量门限为 Cl2, 关联用 户设备的下行信号质量门限设置为 Dl2,非蜂窝通信设备的回程容量门限为 El2,非蜂窝通信设备的工作带宽门限为 Fl2, 误包率门限为 Gl2。 进一步地, 由于釆用上述至少一种操作方式, 用户设备可能将业务转移到非蜂窝通信 设备 i或非蜂窝通信设备组 i提供的非蜂窝通信网络中, 但上述至少一种操 作方式对应的非蜂窝通信设备 i或非蜂窝通信设备组 i可能并不唯一, 蜂窝 通信设备可将非蜂窝通信设备 i或非蜂窝通信设备组 i的标识下发给用户设 备进行业务转移, 以使得用户设备获知对哪个或哪些非蜂窝通信设备提供 的非蜂窝通信网络进行业务转移。
作为另一种实现方式, 蜂窝通信设备可以判断非蜂窝通信设备当前接 收到的统计信息是否满足用户设备进行业务转移时的性能需求。 如果蜂窝 通信设备判断非蜂窝通信设备 i或非蜂窝通信设备组 i不满足用户设备进行 业务转移的性能需求。 蜂窝通信设备将用户设备进行业务转移的业务转移 门限设置使得用户设备不满足从所述蜂窝通信网络向非蜂窝通信网络进行 业务转移的门限值。 或者, 如果非蜂窝通信设备 i或非蜂窝通信设备组 i满 足用户设备进行业务转移时性能需求, 蜂窝通信设备 101 将所述业务转移 门限设置为使得所述用户设备一定满足从蜂窝通信网络向非蜂窝通信网络 进行业务转移的门限值。
可选地,由于蜂窝通信设备 101选择的非蜂窝通信设备 i或非蜂窝通信 设备组 i可能当前并不能为用户设备提供服务。 因而, 用户设备可将搜索到 的非蜂窝通信设备的列表发送给蜂窝通信设备 101,在蜂窝通信设备 101判 断出该列表中包含非蜂窝通信设备 i或非蜂窝通信设备组 i时, 蜂窝通信设 备 101将非蜂窝通信设备 i或非蜂窝通信设备组 i对应的业务转移门限下发 给用户设备, 使得用户设备根据业务转移门限将业务转移到非蜂窝通信设 备 i或非蜂窝通信设备组 i提供的非蜂窝通信网络中。 基于图 1所示的通信系统 100以及对图 2所示实施例的进一步细化, 图 3 为本发明实施例一方面提供一种业务转移门限的确定方法的流程示意 图。 在本实施例中, 非蜂窝通信设备为至少一个 WLAN AP。 蜂窝通信设备 和至少一个 WLAN AP为用户设备提供服务。 为了便于说明, 非蜂窝通信 设备发送的统计信息为至少一个 WLAN AP的负载, 非蜂窝通信设备的性 能信息为至少一个 WLAN AP中关联用户设备的平均传输速率或平均传输 时延, 业务转移门限为用户设备将业务转移到至少一个 WLAN AP提供的 WLAN的负载门限。 如图 3所示, 包括以下内容。
301, 蜂窝通信设备接收至少一个 WLAN AP发送的关联用户设备的平 均传输速率或平均传输时延, 以及所述关联用户设备的平均传输速率或平 均传输时延所对应的 WLAN AP的负载。
302, 蜂窝通信设备根据关联用户设备的平均传输速率或平均传输时 延, 和所述负载, 确定用户设备进行业务转移的业务转移门限。
作为一种实现方式, 蜂窝通信设备根据所述用户设备进行业务转移的 性能需求, 找到该性能需求对应的 WLAN AP的负载。 蜂窝通信设备将该 性能对应的 WLAN AP的负载作为业务转移门限。
作为另一种实现方式, 蜂窝通信设备获取至少一个 WLAN AP的当前 负载,
在 301 中, 蜂窝通信设备可生成关联用户设备的平均传输速率, 以及 对应的 WLAN AP的负载之间的对应关系, 参见表 2。
表 2
Figure imgf000019_0001
为了便于说明, 在表 2中, 对于同一个 WLAN AP i或同一组 WLANAP组 i来说, 不同的负载对应平均传输速率 il至平均传输速率 iM。 为了便于 说明和举例, 这里假设负载 il<负载 i2< ... <负载 iM, 平均传输速率 11>平 均传输速率 i2>...>平均传输速率 iM。 作为一个示例, 用户设备在进行业 务转移时性能需求为关联用户设备的平均传输速率不小于平均传输速率 i2,蜂窝通信设备在表 2中发现关联用户设备的平均传输速率不小于平均 传输速率 i2, 对应了 WLAN AP i的负载 il和 WLAN AP i的负载 i2。 蜂 窝通信设备可以在负载 il和负载 i2中任选一个作为负载门限下发给用户 设备进行业务转移。作为另一个示例,用户设备在进行业务转移时性能需 求为关联用户设备的平均传输速率大于平均传输速率 il, 蜂窝通信设备 判断出在表 2中并不存在满足这样性能所对应的负载,蜂窝通信设备可将 负载门限设置为使得用户设备不会将业务从蜂窝通信设备转移到 WLAN AP i中, 例如 0或负数, 由于不可能存在负载小于 0或负数的 WLAN AP i, 因而用户设备不会将业务从蜂窝通信网络转移到 WLAN AP i覆盖的非 蜂窝通信网络中。
蜂窝通信设备在向用户设备下发负载门限时, 可以将这个负载门限对 应的 WLAN AP组的组标识(例如, SSID ) 下发给用户设备,以便用户设备 在这个组标识所标识的 WLAN AP组进行业务转移。 蜂窝通信设备在向用 户设备下发负载门限时, 也可以将这个负载门限对应的 WLAN AP i的标识 (例如, BSSID )下发给用户设备,以便用户设备对这个标识所标识的 WLAN AP i进行业务转移。 蜂窝通信设备在向用户设备下发负载门限时, 还可以 将这个负载门限对应的 WLAN AP i的信道标识下发给用户设备,以便用户 设备在这个信道标识所标识的信道进行业务转移。 需要说明的是, 通常情 况下, 一个 WLAN AP i使用一个信道, 那么这个情况下一个 WLAN AP i 和信道是——对应的。 但是有文献表明, 一个 WLAN AP i也可以使用多个 信道, 这种情况下, 为了带来用户设备业务转移后系统性能的进一步提升, 蜂窝通信设备除了将 WLAN AP i的标识发给所述用户设备, 还可以将这个 WLAN AP i所使用的信道标识也发送给所述用户设备。
一般情况下, 为了提高通信系统的使用效率, 在用户设备进行业务转 移的过程中,用户设备可以将业务转移到负载最低的一个或多个 WLAN AP 中。 然而, 一个 WLAN AP的负载并不能充分反映出 WLAN的传输冲突问 题。 例如, 关联用户设备的增加会给 WLAN AP带来上行业务增加, 反而 导致这个 WLANAP的传输冲突加剧从而使得 WLAN系统性能急剧下降, 会影响接入到这个 WLAN AP中所有用户设备的体验, 导致所有用户设备 都无法得到所需的平均传输速率或平均传输时延。 为了让用户设备业务转 移到负载尽可能小的 WLAN AP, 而又不会使得这些 WLAN AP的系统性能 下降, 可以选择关联用户设备以下行业务为主的 WLAN AP中。 因此, 蜂 窝通信设备在确定负载门限时, 除了考虑 WLAN AP 的负载, 还需考虑 WLANAP的上下行业务比例, 参见表 3。
一方面,从表 3中可以注意到,平均传输速率 il至平均传输速率 iM中 可能不是全部不同的。 因而会存在相同的平均传输速率对应多个不同的负 载, 这时可以选择上下行业务比 (上行业务量除以下行业务量)较小所对 应的负载作为业务转移门限。 例如, 针对 WLAN AP i, 用户设备根据进行 业务转移的性能需求(对应平均传输速率 /平均传输延迟), 以及 WLAN AP i的上下行业务比来确定负载门限。 4叚设平均传输速率 /平均传输延迟 il至 平均传输速率 /平均传输延迟 iM都是满足用户设备进行业务转移时的性能 需求,上下行业务比 iM是表 3中所有上下行业务比中最小的,则将负载 iM 作为负载门限。
另一方面, 在表 3 中, 满足用户设备进行业务转移时性能需求可能对 应多个 WLAN AP ( 4叚设至少对应了 WLAN AP i和 WLAN AP i+1 ), 这时 可以从这多个 WLAN AP中选择上下行业务比较小的 WLAN AP对应的负 载作为负载门限下发给用户设备, 使得用户设备可以将业务转移到上下行 业务比较小的 WLAN AP中。
表 3
Figure imgf000022_0002
需要说明的是, 上述根据上下行业务比确定出的负载门限仍然可能为 多个, 蜂窝通信设备还可以考虑 WLANAP的误包率、 WLANAP的带宽、 关联用户设备的信号质量(包括上行信号质量或下行信号质量) 来进一步 从多个负载中确定负载门限。 当然, 蜂窝通信设备还可以再进一步根据平 均接入时延, 再对所选择出的信号质量进行筛选, 以便设置出最优的业务 转移门限, 类似可参见表 1-B。 参见表 4-表 6, 与通过 WLAN AP的上下行 业务比来辅助确定负载门限类似, 不再赘述。 表 4
Figure imgf000022_0003
Figure imgf000022_0001
Figure imgf000022_0004
Figure imgf000023_0001
表 6
Figure imgf000023_0002
当然, 蜂窝通信设备还可以根据从非蜂窝通信设备接收到的所有性能 信息和统计信息, 生成如下表 7, 确定用户设备进行业务转移的负载门限。 表 7
Figure imgf000023_0003
类似地, 在用户设备进行业务转移时的业务转移门限为信号质量门限
10 时, 蜂窝通信设备也可以参照表 7 来确定信号质量门限。 为了便于说明, 假设表 7 中平均传输速率的数值从上到下依次递减。 作为一个示例, 用户 设备在进行业务转移时性能需求为关联用户设备的平均传输速率不小于平 均传输速率 il, 则从表 7中无法找到满足该性能需求的 WLAN AP, 则蜂窝 通信设备将信号质量门限设置为用户设备的信号质量肯定无法超过门限 值, 使得用户设备不可能将业务从蜂窝通信网络转移到非蜂窝通信网络中。 作为另一个示例, 用户设备在进行业务转移时性能需求为关联用户设备的 平均传输速率不小于平均传输速率 iM,则从表 7中,平均传输速率 il到 iM 满足用户设备可以进行业务转移的性能需求。 蜂窝通信设备可以将信号质 量 il到信号质量 iM中的任意一个作为用户设备的信号质量门限下发给用 户设备, 使得用户设备可以完成从蜂窝蜂窝到 WLAN的业务转移。 蜂窝通 信设备还可以进一步考虑 WLAN AP i负载、 带宽、 误包率、 可用回程容量 来作为辅助信息, 从信号质量 il至信号质量 iM中确定出合适的信号质量 门限。例如, 用户设备进行业务转移的性能, 以及 WLAN AP i当前的负载、 带宽、 误包率、 可用回程容量对应表 7 中的最后一行, 则将最后一行对应 的信号质量 iM作为业务转移的信号质量门限。 当然, 蜂窝通信设备还可以 再进一步根据平均接入时延, 再对所选择出的信号质量进行筛选, 以便设 置出最优的业务转移门限, 类似可参见表 1-B。
类似的,蜂窝通信设备还可以确定出 WLAN AP的带宽门限、 WLANAP 误包率门限、 WLANAP的可用回程门限等等。 这里不再——赘述。 图 4为本发明实施例一方面提供的一种蜂窝通信设备 400的结构示意 图, 该蜂窝通信设备 400具有与蜂窝通信设备 100相同的功能。 该蜂窝通 信设备 400可以执行蜂窝通信设备 100的方法动作, 以确定出用户设备进 行业务转移时的业务转移门限。 该蜂窝通信设备 400, 至少包括接收器 401 和处理器 402。
接收器 401,用于接收所述非蜂窝通信设备发送的性能信息和所述性能 信息对应的非蜂窝通信设备的统计信息。
处理器 402,用于根据所述性能信息和所述统计信息确定满足用户设备 进行业务转移时的业务转移门限。
与方法实施例的说明相同, 本实施例中所述性能信息为在所述非蜂窝 通信设备中关联用户设备的平均传输速率或平均接入时延; 所述统计信息 为所述非蜂窝通信设备的负载、 所述关联用户设备的上行信号质量、 所述 关联用户设备的下行信号质量、 所述非蜂窝通信设备的可用回程容量、 所 述非蜂窝通信设备的上下行业务比例、 所述非蜂窝通信设备的工作带宽和 所述非蜂窝通信设备的误包率的至少一个。
可选地,蜂窝通信设备 400还包括发射器 403, 用于向所述用户设备发 送处理器 402所确定的业务转移门限。 在用户设备接收到该业务转移门限 后, 可以根据该业务转移门限将业务从该蜂窝通信设备 400转移到所述非 蜂窝通信设备中。
为了让所述用户设备能够识别业务转移门限是针对哪个或哪些非蜂窝 通信设备而下发的, 发射器 403还可用于向所述用户设备发送所述非蜂窝 通信设备的标识。 由于所述用户设备可能并不在所述非蜂窝通信设备的信 号覆盖范围内, 即使发射器 403将所述非蜂窝通信设备的标识发送给所述 用户设备, 所述用户设备仍然无法向所述非蜂窝通信设备进行业务转移。 因此, 在发射器 403 向所述用户设备发送所述非蜂窝通信设备之前, 所述 接收器 401 可接收所述用户设备发送的所述用户设备所搜索到的非蜂窝通 信设备的列表, 并由处理器 402判断所述列表是否包含所述非蜂窝通信设 备。 如果处理器 402判断出所述列表中包含所述非蜂窝通信设备, 则发射 器 403向所述用户设备发送所述非蜂窝通信设备的标识。
可选地, 在处理器 402确定所述业务转移门限之前, 接收器 401还用 于接收所述用户设备发送的所述用户设备进行业务转移时性能需求。 当然, 对于某些业务来说, 例如, "尽力而为的业务", 用户设备可能不会发送其 进行业务转移时性能需求。 处理器 402对于这类业务, 可按照预设的规则 来确定满足用户设备进行业务转移时性能需求的业务转移门限。 用户设备 进行业务转移时的性能需求, 可详见方法实施例中的说明。
针对上述说明, 处理器 402可以根据所述性能信息和所述统计信息确 定所述用户设备进行业务转移时的业务转移门限, 包含以下两种可能实现 方式。
( 1 )处理器 4024艮据所述性能信息和所述统计信息生成所述性能信息 和所述统计信息的对应关系。 该对应关系可以是针对每个蜂窝通信设备, 也可以是针对多个非蜂窝通信设备构成的非蜂窝通信设备组来生成的。 可 参照表 1-表 7的说明。 处理器 402从该对应关系中选择出满足所述用户设 备进行业务转移时性能需求的统计信息作为所述业务转移门限。 可选地, 在处理器 402确定出所述业务转移门限之前, 所述接收器 401 可以接收用 户设备发送的所述用户设备进行业务转移时的性能需求。
( 2 )处理器 402根据所述性能信息和所述统计信息生成所述性能信息和 所述统计信息的对应关系。 该对应关系可以是针对每个蜂窝通信设备, 也 可以是针对多个非蜂窝通信设备构成的非蜂窝通信设备组来生成的。 可参 照表 1-表 7的说明。处理器 402根据所述对应关系,确定所述非蜂窝通信设备 当前统计信息对应的性能信息是否满足所述用户设备进行业务转移的性能 需求; 如果不满足, 处理器 402将所述业务转移门限设置为使得所述用户设 备不满足将业务从所述蜂窝通信设备 400转移到所述非蜂窝通信设备的门 限值; 或者, 如果满足, 处理器 402将所述业务转移门限设置为使得所述用 户设备满足将业务从所述蜂窝通信设备 400转移到所述非蜂窝通信设备的 门限值。
在本发明实施例描述的方法和蜂窝通信设备中, 蜂窝通信设备根据从 非蜂窝通信设备接收到的性能信息和统计信息来确定用户设备将要进行业 务转移时的业务转移门限, 这些性能信息和统计信息实际上对于该将要进 行业务转移的用户设备来说直接或间接反映了在用户设备将业务转移到这 些非蜂窝通信网络后, 非蜂窝通信网络为该用户设备所能提供的性能。 进 一步地, 用户设备也可以有针对性地将业务转移到满足其进行业务转移时 性能需求的非蜂窝通信网络中。 应用本发明实施例提供的技术方案, 可以 达到合理设置业务转移门限的目的, 从而避免由于业务转移门限不合理而 导致用户设备将业务转移到某个非蜂窝通信设备后用户体验下降。 在某些实施例中, 对于熟知的方法、 接口、 设备信令技术未进行具体 描述, 以免因不必要的细节使得本发明模糊。 本领域普通技术人员可以理 解实现上述实施例方法中的全部或者部分步骤是可以通过程序来指示相关 的硬件来完成, 所述的程序可以存储于一计算机可读存储介质中, 所述的 存储介质, 如: 只读存储记忆体(read-only memory, Rom )或随机存储记 忆体 ( random access memory , RAM )、 磁碟、 光盘等。
以上所述的具体实施方式, 对本发明的目的、 技术方案和有益效果进 行了进一步详细说明, 所应理解的是, 以上所述仅为本发明的具体实施方 式而已, 并不用于限定本发明的保护范围, 本领域技术人员在不付出创造 性劳动的基础上, 所做的任何修改、 等同替换、 改进等, 均应包含在本发 明的保护范围之内。

Claims

权利要求
1、 一种蜂窝通信设备, 其特征在于, 包括:
接收器, 用于接收非蜂窝通信设备发送的性能信息和所述性能信息对 应的统计信息;
处理器, 用于根据所述性能信息和所述统计信息确定用户设备进行业 务转移时的业务转移门限;
其中, 所述性能信息为在所述非蜂窝通信设备中关联用户设备的平均 传输速率或平均接入时延; 所述统计信息为所述非蜂窝通信设备的负载、 所述关联用户设备的上行信号质量、 所述关联用户设备的下行信号质量、 所述非蜂窝通信设备的可用回程容量、 所述非蜂窝通信设备的上下行业务 比例、 所述非蜂窝通信设备的工作带宽和所述非蜂窝通信设备的误包率的 至少一个。
2、 根据权利要求 1所述的蜂窝通信设备, 其特征在于, 所述蜂窝通信 设备还包括:
发射器, 用于向所述用户设备发送所述业务转移门限。
3、 根据权利要求 1或 2所述的蜂窝通信设备, 其特征在于, 所述发射器 还用于向所述用户设备发送所述非蜂窝通信设备的标识。
4、 根据权利要求 3所述的蜂窝通信设备, 其特征在于, 所述接收器还 用于在所述发射器向所述用户设备发送所述非蜂窝通信设备的标识之前, 接收所述用户设备发送的所述用户设备搜索到的非蜂窝通信设备的列表; 所述处理器还用于判断所述列表是否包含所述非蜂窝通信设备; 所述发射器具体用于在所述处理器判断出所述列表包含所述非蜂窝通 信设备时, 向所述用户设备发送所述非蜂窝通信设备的标识。
5、根据权利要求 1-4任意一项所述的蜂窝通信设备, 其特征在于, 所述 处理器用于根据所述性能信息和所述统计信息确定所述用户设备进行业务 转移时的业务转移门限, 包括: 所述处理器, 用于 4艮据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系, 并从所述对应关系中选择出满足所述用户 设备进行业务转移时性能需求对应的统计信息作为所述业务转移门限。
6、根据权利要求 1-4任意一项所述的蜂窝通信设备, 其特征在于, 所述 处理器用于根据所述性能信息和所述统计信息确定所述用户设备进行业务 转移时的业务转移门限, 包括:
所述处理器, 用于 4艮据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系, 并从所述对应关系中确定所述非蜂窝通信 设备当前统计信息对应的性能信息是否满足所述用户设备进行业务转移时 的性能需求;
如果不满足, 所述处理器还用于将所述业务转移门限设置为使得所述 用户设备不满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信网络的 门限值; 或者, 如果满足, 所述处理器还用于将所述业务转移门限设置为 使得所述用户设备满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信 网络的门限值。
7、 根据权利要求 5或 6所述的蜂窝通信设备, 其特征在于, 所述接收器 还用于接收所述用户设备发送的所述用户设备进行业务转移时的性能需 求。
8、 一种业务转移门限的确定方法, 其特征在于,
蜂窝通信设备接收非蜂窝通信设备发送的性能信息和所述性能信息对 应的统计信息;
所述蜂窝通信设备根据所述性能信息和所述统计信息确定用户设备进 行业务转移时的业务转移门限;
其中, 所述性能信息为在所述非蜂窝通信设备中关联用户设备的平均 传输速率或平均接入时延; 所述统计信息为所述非蜂窝通信设备的负载、 所述关联用户设备的上行信号质量、 所述关联用户设备的下行信号质量、 所述非蜂窝通信设备的可用回程容量、 所述非蜂窝通信设备的上下行业务 比例、 所述非蜂窝通信设备的工作带宽和所述非蜂窝通信设备的误包率的 至少一个。
9、 根据权利要求 8所述的方法, 其特征在于, 所述方法还包括: 所述蜂窝通信设备向所述用户设备发送所述业务转移门限。
10、 根据权利要求 8或 9所述的方法, 其特征在于, 所述方法还包括: 所述蜂窝通信设备向所述用户设备发送所述非蜂窝通信设备的标识。
11、 根据权利要求 10所述的方法, 其特征在于, 在所述蜂窝通信设备 向所述用户设备发送所述非蜂窝通信设备的标识之前, 所述方法还包括: 所述蜂窝通信设备接收所述用户设备发送的所述用户设备搜索到的非 蜂窝通信设备的列表;
所述蜂窝通信设备向所述用户设备发送所述非蜂窝通信设备的标识, 包括: 所述蜂窝通信设备判断所述列表是否包含所述非蜂窝通信设备; 如 果包含, 所述蜂窝通信设备向所述用户设备发送所述非蜂窝通信设备的标 识。
12、根据权利要求 8-11任意一项所述的方法, 其特征在于, 所述蜂窝通 信设备根据所述性能信息和所述统计信息确定所述用户设备进行业务转移 时的业务转移门限, 包括:
所述蜂窝通信设备根据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系;
所述蜂窝通信设备从所述对应关系中选择出满足所述用户设备进行业 务转移性能需求的统计信息作为所述业务转移门限。
13、根据权利要求 8-11任意一项所述的方法, 其特征在于, 所述蜂窝通 信设备根据所述性能信息和所述统计信息确定所述用户设备进行业务转移 时的业务转移门限, 包括: 所述蜂窝通信设备根据所述性能信息和所述统计信息生成所述性能信 息和所述统计信息的对应关系;
所述蜂窝通信设备根据所述对应关系, 确定所述非蜂窝通信设备当前 统计信息对应的性能信息是否满足所述用户设备进行业务转移的性能需 求;
如果不满足, 所述蜂窝通信设备将所述业务转移门限设置为使得所述 用户设备不满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信网络的 门限值; 或者, 如果满足, 所述蜂窝通信设备将所述业务转移门限设置为 使得所述用户设备满足将业务从所述蜂窝通信网络转移到所述非蜂窝通信 网络的门限值。
14、 根据权利要求 12或 13所述的方法, 其特征在于, 所述方法还包括: 所述蜂窝通信设备接收所述用户设备发送的所述用户设备进行业务转 移时的性能需求。
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