WO2014121688A1 - Procédé, dispositif et système de détermination de charge de wlan - Google Patents

Procédé, dispositif et système de détermination de charge de wlan Download PDF

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Publication number
WO2014121688A1
WO2014121688A1 PCT/CN2014/070923 CN2014070923W WO2014121688A1 WO 2014121688 A1 WO2014121688 A1 WO 2014121688A1 CN 2014070923 W CN2014070923 W CN 2014070923W WO 2014121688 A1 WO2014121688 A1 WO 2014121688A1
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Prior art keywords
measurement
wlan
wlan load
load
network side
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PCT/CN2014/070923
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English (en)
Chinese (zh)
Inventor
李艳华
梁靖
刘佳敏
全海洋
刘爱娟
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电信科学技术研究院
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Publication of WO2014121688A1 publication Critical patent/WO2014121688A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present application relates to communications technologies, and in particular, to a WLAN (Wireless Local Area Network) load determining method, apparatus, and system.
  • WLAN Wireless Local Area Network
  • BACKGROUND With the advent of new wireless access technologies, the future development trend of networks is heterogeneous networks that integrate multiple wireless access technologies.
  • the current typical access technologies include the UMTS (Universal Mobile Telecommunications System) defined by the 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), and LTE-A ( Long Term Evolution-Advanced, long-term evolution enhancement) and typical technologies such as WIFI (Wireless Fidelity) defined by non-3GPP.
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution-Advanced, long-term evolution enhancement
  • WIFI Wireless Fidelity
  • LTE will be merged with WLAN, as shown in Figure 1.
  • LTE has a wide coverage and is generally used as a wide-area coverage to provide users with good mobility support.
  • the WLAN coverage is small, and as a hotspot coverage, it can better solve the business needs that are concentrated in some hotspots.
  • LTE and WLAN networks have better complementarity, and the effective combination of the two can effectively improve the service carrying capacity of the network. For users in overlapping coverage areas, how to choose a suitable network for users and how to load balance when LTE or WLAN is overloaded is a critical issue.
  • the UE User Equipment, User Equipment selection and network load balancing is based on A DSF (Access Network Discovery and Selection Function). Choose a feature) scheme.
  • the ANDSF policy is a set of operator-defined criteria and preferences for routing and routing that affect the inter-system mobility decisions of the UE.
  • the architecture of communication between the ANDSF and the UE is as shown in FIG. 2, where the UE interacts with the ANDSF through an S14 interface, which is an IP (Internet Protocol)-based interface.
  • the communication between the UE and the A DSF has two modes: Pull and Push. The former is that the UE actively sends a request to the A DSF, and the latter is the A DSF actively pushes the information.
  • the ANDSF strategy is relatively static.
  • the ANDSF provides network discovery and selection-related information to the UE based on the carrier policy.
  • the following three types are included: ISMP (Inter-system mobility policy), A DI (Access Network Discovery Information) ) and ISRP (Inter-System Routing) Policy, cross-system routing policy).
  • ISMP is a series of operator-defined rules and preference information, which defines whether to allow cross-system mobility, the most suitable access technology type for EPC (Evolved packet core), and different access technologies. Different priorities and other information.
  • the ISMP may be pre-configured in the UE, or may be sent when requested by the UE, or pushed to the UE by the ANDSF under some trigger. For example, the ANDSF can deliver the WLAN with a higher priority than the LTE policy, so that when the UE is covered by the two, the WLAN system access is preferentially selected.
  • the ANDSF may provide the UE with a list of access networks available in its vicinity that conform to the requested access type and related parameters, such as access technologies (eg, WLAN, WiMAX (Worldwide Interoperability for Microwave Access) Etc.), radio access network identification, carrier frequency, etc.
  • access technologies eg, WLAN, WiMAX (Worldwide Interoperability for Microwave Access) Etc.
  • radio access network identification e.g., carrier frequency, etc.
  • ISRP contains some information needed for cross-system routing.
  • UEs with multiple radio access interfaces such as supporting IFOM
  • MAPCON Multiple Access PDN Connectivity
  • the existing protocol stipulates that the ANDSF selects the ISMP, ANDI, and ISRP provided to the UE according to the carrier's requirements and the roaming agreement.
  • the ANDSF may provide the above three policies at the same time, or may provide only some of the policies.
  • the ANDSF can interact with some databases in the carrier's network, such as the HSS (Home Subscriber Server), to obtain the required information.
  • HSS Home Subscriber Server
  • ANDSF is primarily a carrier policy and user subscription information, and has nothing to do with the current network load situation.
  • the UE After the UE obtains the ANDSF policy, the UE directly performs subsequent network selection and data flow switching processes, which lacks network-side control in the traditional sense.
  • the problem with this method is that because the access network (RAN) side (including the 3GPP and non-3GPP access network sides) does not control the process, the traffic shield cannot be guaranteed during the handover. For example, if the user switches to the WLAN network according to the ANDSF policy, and the WLAN network is overloaded at this time, the basic service requirements of the user cannot be met, and the user experience will be greatly affected at this time.
  • the base station sends measurement configuration information to the UE through dedicated signaling, and the UE performs measurement according to the content of the measurement configuration information, and then sends the measurement result to the network.
  • LTE defines several types of measurements as follows: co-frequency measurement, inter-frequency measurement, UTRA (Universal Telecommunication Radio Access) frequency, system-specific measurement, GERAN (GSM EDGE Radio Access Network, GSM/EDGE wireless) Communication network) Different system measurement of frequency, different system measurement of CDMA (Code Division Multiple Access) frequency.
  • UTRA Universal Telecommunication Radio Access
  • GERAN GSM EDGE Radio Access Network, GSM/EDGE wireless
  • CDMA Code Division Multiple Access
  • the measurement configuration of the network uses the RRC (Radio Resource Control) connection reconfiguration process, as shown in Figure 3.
  • RRC Radio Resource Control
  • the organizational structure of the measurement configuration information is as follows:
  • Measurement object For co-frequency and inter-frequency measurements, the measurement object is the frequency point; for different system measurements of UTRA frequency, the measurement object is a series of cells on a UTRA carrier frequency; Measurement, the measurement object is a series of GERAN carrier frequencies; and for the different system measurement of CDMA frequency, the measurement object is a series of cells on a certain carrier frequency;
  • Report configuration According to the trigger type, it is divided into event trigger report and periodic trigger report. Each report configuration has a separate ID.
  • the reporting type of the event trigger type is assigned to the threshold of an event and the duration of the trigger condition (Time to Trigger ).
  • the configuration of the periodic trigger type is assigned to the purpose of the periodic trigger (for example, reporting CGI) ). It also includes information such as the triggered measurement amount, the reported measurement amount, and the reported interval and number of times.
  • Event Al (Serving becomes better than threshold), Event A2 (Serving becomes worse than threshold), Event A3 (Neighbour becomes offset better than Serving, the neighboring cell channel shield is better than the serving cell channel shield), Event A4 (Neighbour becomes better than threshold), Event A5 (Serving becomes worse than threshold 1 and neighbour becomes better than Threshold2, the channel shield of the monthly service cell is less than the threshold 1, and the channel shield of the neighboring cell is greater than the threshold 2), Event Bl (Inter RAT neighbour becomes better than threshold), and the amount of the shield is stronger than a certain threshold, Event B2 ( Serving becomes worse than threshold 1 and inter RAT neighbour becomes better than threshold. The channel shield of the cell is less than the threshold 1, and the channel shield of the adjacent system is greater than the threshold.
  • the parameters involved in the measurement include:
  • Measurement ID A separate ID that can be connected to both a measurement object and an upper configuration. If the threshold for turning on the measurement is reached, the UE determines whether to perform the measurement according to the presence or absence of the measurement identifier;
  • Figure 4 illustrates the relationship between the measurement object, the upper configuration, and the measurement identification.
  • These three methods are distinguished according to the combination of various parameters in the reporting configuration. For example, when the trigger type in the report configuration is event trigger, and the related parameters such as the threshold value of the event and the duration of the trigger condition are allocated, and the parameters such as the measurement interval or the number of times of reporting are not configured, the UE will follow the event.
  • the trigger mode is reported.
  • the measurement results will be passed through the measurement report message.
  • Each measurement report message can only report the content corresponding to one measurement identifier, that is, the cell that meets the relevant report configuration at one frequency point.
  • the measurement report message includes: measurement identifier, and measurement amount of the cell (RSRP ( Reference Signal Received Power) ⁇ Reference signal received power) and RSRQ (Reference Signal Received Quality), and the physical layer cell ID of the neighboring cell that satisfies the condition, where is reported to each neighboring cell
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • a) Measurement and evaluation The UE finds a cell that meets the reporting configuration in a certain measurement object, and performs evaluation. When the cell meets the admission condition within a certain time (Time To Trigger), it will be included in the report list; Once a new cell enters the escalation list, the escalation process is triggered.
  • the number of neighbor cells included in the report list is determined by the following conditions:
  • the admission condition of the report list When the measurement quantity of a certain cell reaches the admission criterion (for example, the signal shield of the cell is greater than a certain threshold);
  • the leaving condition of the reporting list when the measured quantity of a certain cell reaches the leaving criterion (for example, the signal shield of the cell is less than a certain threshold);
  • Conditions for the cell to be deleted from the report list When a cell meets the leave condition of the report list within a certain period of time (Time To Trigger), it will be deleted from the report list.
  • the current ANDSF-based policy does not take into account the load information of the RAN, so that the user cannot guarantee the communication shield when performing network selection and switching, and the LTE network element cannot obtain the load and other information of the WLAN.
  • SUMMARY Embodiments of the present application provide a WLAN load determination method, apparatus, and system to implement determination of a WLAN load.
  • a WLAN load determination method includes:
  • the UE measures the WLAN load to determine the WLAN load.
  • the UE performs corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • the indication message is specifically: Carrying an RRC connection reconfiguration message configured with a WLAN load measurement; or
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the UE may further perform a network selection operation according to the WLAN load, reduce the probability of network selection failure, and may also send the load to the network side, so that the network side can also determine the WLAN load, thereby performing operations such as load balancing.
  • the UE measures the WLAN load, determines the WLAN load, and also applies the WLAN load to the network side, and/or performs network access selection according to the WLAN load.
  • the foregoing WLAN load measurement configuration may specifically include:
  • the foregoing indication message may also be used to:
  • the UE is configured to measure other WLAN parameters except the WLAN load.
  • the foregoing indication message may also be used to:
  • the UE is configured to measure the signal strength of the LTE network.
  • the foregoing indication message may also be used to:
  • the UE Configure the UE to report the WLAN load when the measurement result reaches the set condition.
  • the UE measures the WLAN load, and after determining the WLAN load, reports the measurement result of the set condition and the access point identifier corresponding to the measurement result to the network side.
  • the foregoing indication message may further include: a measurement event name of the WLAN measurement.
  • the specific implementation manner of the UE reporting the WLAN load to the network side is: the UE sends the measurement result, the access point identifier corresponding to the measurement result, and the measurement identifier to the network side according to the trigger condition corresponding to the measurement event.
  • the UE measures the WLAN load, determines the WLAN load, and saves the measurement result of the WLAN load, and informs the network side that the measurement result is available; and receives the measurement result sent by the network side.
  • the measurement result is sent to the network side.
  • a WLAN load determination method includes:
  • An indication message for instructing the UE to perform WLAN load measurement is sent to the UE, so that the UE measures the WLAN load to determine the WLAN load.
  • the WLAN load determining method provided by the embodiment of the present application enables the UE to perform corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • the indication message is specifically:
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the WLAN load measurement configuration specifically includes:
  • the foregoing indication message may also be used to:
  • the UE is configured to measure other WLAN parameters except the WLAN load.
  • the foregoing indication message may also be used to:
  • the UE is configured to measure the signal strength of the LTE network.
  • the foregoing indication message may also be used to:
  • the WLAN load may be implemented by receiving, by the UE, a measurement result that reaches a set condition and an access point identifier corresponding to the measurement result.
  • the indication message further includes: a measurement event name of the WLAN measurement.
  • the implementation manner of receiving the WLAN load reported by the UE may be: receiving the trigger condition corresponding to the measurement event by the UE, the measurement result of the measurement, the access point identifier corresponding to the measurement result, and the measurement identifier.
  • the measurement result acquisition instruction is sent to the UE, and the measurement result sent by the UE is received.
  • a WLAN load determining apparatus includes:
  • the receiving unit is configured to receive an indication message sent by the network side to instruct the UE to perform WLAN load measurement, and a measurement unit, configured to measure the WLAN load, and determine a WLAN load.
  • the WLAN load determining apparatus performs corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • the indication message is specifically:
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the measuring unit measures the WLAN load, and after determining the WLAN load, is further configured to: send the WLAN load to the network side; and/or,
  • the measuring unit measures the WLAN load, and after determining the WLAN load, is further configured to: save the measurement result of the WLAN load, and notify the network side that the measurement result is available;
  • the measurement result is sent to the network side.
  • a user equipment includes a radio frequency unit and a processor.
  • the radio unit is configured to receive an indication message sent by the network side to instruct the UE to perform WLAN load measurement.
  • the processor is configured to measure the WLAN load to determine the WLAN load.
  • the user equipment provided by the embodiment of the present application performs corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • a WLAN load determining apparatus includes:
  • a determining unit configured to determine an indication message used to indicate that the UE performs WLAN load measurement
  • a sending unit configured to send, to the UE, an indication message for instructing the UE to perform WLAN load measurement, so that the UE measures the WLAN load to determine a WLAN load.
  • the WLAN load determining apparatus enables the UE to perform corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • the indication message is specifically:
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the method further includes:
  • the load receiving unit is configured to receive a WLAN load reported by the UE.
  • the foregoing WLAN load measurement configuration specifically includes:
  • the indication message is further used to:
  • the UE is configured to measure other WLAN parameters except the WLAN load.
  • the indication message is further used to:
  • the UE is configured to measure the signal strength of the LTE network.
  • the indication message is further configured to: configure the UE to report the WLAN load when the measurement result reaches the set condition.
  • the load receiving unit is specifically configured to: receive a measurement result that is reported by the UE and reach a set condition, and an access point identifier corresponding to the measurement result.
  • the indication message further includes: a measurement event name of the WLAN measurement.
  • the load receiving unit is specifically configured to: receive, according to the trigger condition corresponding to the measurement event, the measurement result of the measurement, the access point identifier corresponding to the measurement result, and the measurement identifier.
  • the method further includes:
  • the acquiring unit is configured to: after receiving the measurement result of the WLAN load saved by the UE, send a notification message indicating that the measurement result is available; when the measurement result needs to be acquired, send a measurement result acquisition instruction to the UE, and receive the measurement result sent by the UE.
  • a network side device including a processor and a radio unit.
  • the processor is configured to: determine an indication message for instructing the UE to perform WLAN load measurement; the radio unit is configured to send, to the UE, an indication message for instructing the UE to perform WLAN load measurement, so that the UE measures the WLAN load, Determine the WLAN load.
  • the network side device provided by the embodiment of the present application enables the UE to perform corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • a WLAN load determination system includes:
  • the UE is configured to receive an indication message sent by the network side to instruct the UE to perform WLAN load measurement, and measure the WLAN load to determine a WLAN load.
  • a base station configured to determine an indication message used to instruct the UE to perform WLAN load measurement; send the indication to the UE
  • the UE performs an indication message of the WLAN load measurement, so that the UE measures the WLAN load to determine the WLAN load.
  • FIG. 1 is a schematic diagram of LTE and WLAN networking in the prior art
  • FIG. 2 is a schematic diagram of a communication architecture between an A DSF and a UE in the prior art
  • FIG. 3 is a flowchart of an RRC connection reconfiguration in the prior art
  • FIG. 4 is a schematic diagram showing the relationship between a measurement object, an upper configuration, and a measurement identifier in the prior art
  • FIG. 5 is a flowchart of a UE performing measurement reporting in the prior art
  • FIG. 6 is a flowchart of a method for determining a WLAN load according to an embodiment of the present application
  • FIG. 7 is a flowchart of a specific WLAN load determining method according to an embodiment of the present application.
  • FIG. 8 is a second flowchart of a specific WLAN load determining method according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a relationship between a measurement object, a top configuration, and a measurement identifier according to Embodiment 1 according to an embodiment of the present application;
  • FIG. 9 is a flowchart of a method for determining a WLAN load according to Embodiment 11 according to an embodiment of the present disclosure
  • FIG. 9 is a flowchart of a method for determining a WLAN load according to Embodiment 13 according to an embodiment of the present disclosure
  • Example 2 of the WLAN load determination method provided by the example
  • FIG. 11 is a schematic diagram of a WLAN load determining apparatus according to an embodiment of the present application
  • FIG. 12 is a schematic diagram of a user equipment according to an embodiment of the present disclosure
  • FIG. 13 is a second schematic diagram of a WLAN load determining apparatus according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a network side device according to an embodiment of the present application.
  • FIG. 15 is a schematic diagram of a WLAN load determination system according to an embodiment of the present application.
  • the embodiments of the present application provide a method, an apparatus, and a system for determining a WLAN load.
  • the UE performs corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • the UE can further perform network selection operation according to the load, reduce the probability of network selection failure, and send the load to the network side, so that the network side can also determine the WLAN load, thereby performing load balancing and the like.
  • the WLAN load determining method includes:
  • Step S601 The UE receives an indication message sent by the network side to instruct the UE to perform WLAN load measurement.
  • the UE may send an indication message for instructing the UE to perform WLAN load measurement, and after receiving the indication message, the UE may be according to the network side. A measurement of the WLAN load is instructed to determine the WLAN load.
  • the indication message is specifically:
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the UE measures the WLAN, and after determining the WLAN load, the UE may further report the WLAN load to the network side, or perform network access selection according to the WLAN load, and the UE may report the WLAN load to the network side and the WLAN load according to the WLAN load. Network access selection.
  • the WLAN load measurement configuration is to configure the UE to measure the load parameter of the beacon frame that can be detected, and configure the WLAN parameter that the UE measures the WLAN load to reflect the WLAN load, thereby determining the WLAN load.
  • the indication message may also configure the UE to measure other WLAN parameters except the WLAN load and/or measure the LTE network signal strength.
  • the measurement of the WLAN load by the UE and the measurement of other parameters of the WLAN can be referred to as measuring the WLAN.
  • the network side defines new measurement items and measurement events, and configures the UE to measure the WLAN network or perform combined measurement on the LTE and the WLAN.
  • the process includes: Step S701: For the connected UE, if the eNB has learned the capability of the UE to support the WLAN, the UE may be notified by using dedicated RRC signaling, such as an RRC connection reconfiguration message, and configured to measure the WLAN or the WLAN. Measurement items for combined measurement by LTE;
  • Step S702 The UE returns an RRC connection reconfiguration complete message.
  • Step S703 The UE measures the WLAN according to the measurement configuration or performs combined measurement on the WLAN and the LTE.
  • Step S704 The UE will report the measurement result to the eNB when the reporting condition is met.
  • Step S705 The UE performs a network selection operation, that is, initiates a WLAN connection or maintains the original LTE network.
  • the UE may perform one of steps S704 and S705, and may perform step S704 and step S705.
  • the indication message is specifically a broadcast message carrying a WLAN load measurement configuration and a threshold setting parameter
  • the UE can further perform network access selection according to the threshold setting parameter and the WLAN load.
  • the eNB broadcasts a network selection threshold for the WLAN measurement (that is, the threshold setting parameter).
  • the network selection operation is performed based on the threshold, and the process includes:
  • Step S801 The network broadcasts the network selection threshold for the WLAN measurement to the UE;
  • Step S802 After receiving the network threshold, the UE performs measurement on the WLAN network, and performs network selection according to the comparison between the measurement result and the network threshold, that is, initiates a WLAN connection or maintains the original LTE.
  • the internet After receiving the network threshold, the UE performs measurement on the WLAN network, and performs network selection according to the comparison between the measurement result and the network threshold, that is, initiates a WLAN connection or maintains the original LTE.
  • the internet After receiving the network threshold, the UE performs measurement on the WLAN network, and performs network selection according to the comparison between the measurement result and the network threshold, that is, initiates a WLAN connection or maintains the original LTE.
  • the internet After receiving the network threshold, the UE performs measurement on the WLAN network, and performs network selection according to the comparison between the measurement result and the network threshold, that is, initiates a WLAN connection or maintains the original LTE.
  • the network can configure the UE to perform different parameters to reflect the different aspects of the WLAN load, and further set the condition for the UE to report the WLAN load, so that the UE reports the WLAN load to the network side when the WLAN load reaches the condition. Thereby reducing the amount of data processing on the network side.
  • the WLAN load measurement configuration may specifically include one or a combination of the following:
  • the UE is configured to obtain the transmission status of the service flow that the access point is transmitting.
  • the UE may be configured to measure the WLAN load, or the UE may be configured to measure other parameters of the WLAN.
  • the indication message may be further used to: configure the UE to measure the LTE network signal strength.
  • the parameters of the beacon frame may include an RCPI (acquired channel power indicator, RCPI), a WLAN load of the beacon frame, and the like.
  • STAs Stations, workstations
  • APs Access Points
  • Beacon Enables the STA to request another STA to report the beacon list of APs it can detect on a particular channel and multiple channels.
  • the details are as follows: The measurement can use active mode, passive mode, beacon table mode. If the passive mode is used, the STA measures the beacon within a specified time, detects the answer frame, and measures the power indication of the received channel, and retains the information. If the active mode is used, the STA sends a probe request to the specified channel at the initial time of the specified time, and measures the beacon, detects the response frame, and measures the power indication of the received channel, and retains the information. If you use the beacon table mode, you do not need to measure the beacon information directly back to the save. By measuring the beacon, you can know the information carried in the beacon, such as load information, and the received channel power indicator (RCPI) and service set identifier (SSID). The STA makes a decision to select the network;
  • RCPI received channel power indicator
  • SSID service set identifier
  • a Pilot frame is a short frame that the AP periodically transmits at a time less than the beacon interval. It provides information that is a subset of the beacon frame.
  • the Pilot frame is smaller than the Beacon frame and is transmitted more frequently. The purpose of the measurement Pilot frame is to assist the STA in scanning.
  • This signaling returns the list of all traffic channels received by the STA and the number of all frames. For a particular originator, measure the address of the sender on the STA, the number of frames received from the sender, the average power level of the frames, and the BSSID of the sender;
  • Channel load Returns the channel utilization that can be observed from the measurement STA; channel utilization is defined as a percentage of time, with 255 as a linear measure, ie 0-0, 255-100%.
  • the measurement STA can use the free time of a certain period of time to obtain statistics.
  • Noise histogram Returns a histogram of non-IEEE 802.11 noise power in a sample Idle channel
  • STA statistics Returns the average access delay in the STA counter group and BSS.
  • the STA counter group includes: transmission segment count, multicast transmission frame count, failure count, retransmission count, multiple retransmission count, frame repetition count, RTS success count, RTS failure count, ACK failure count, receive segment count, Multicast reception frame count, FCS error count, transmission frame count, etc.
  • the average access delay of the BSS includes: average access delay of the AP, average access delay for each access level, associated STA count, and channel utilization;
  • LCI location configuration information: Returns location information in latitude, longitude and altitude;
  • Link measurement Returns the measurement for the RF characteristics. Reflects the instantaneous link shield amount; transmit stream/category measurement: STA goes to know the peer STA The status of a business flow.
  • the network side may also configure the UE to report the WLAN load when the measurement result reaches the set condition. At this time, the UE sends the WLAN load to the network side, which specifically includes:
  • the UE reports the measurement result that meets the set condition and the access point identifier corresponding to the measurement result to the network side. Further, in order to reduce signaling overhead, an event may be defined for each measurement item.
  • the WLAN load measurement configuration further includes:
  • the UE sends the WLAN load to the network side, including:
  • the UE sends the measurement result, the access point identifier corresponding to the measurement result, and the measurement identifier to the network side according to the trigger condition corresponding to the measurement event.
  • the UE may also save the measurement result of the WLAN load, and notify the network side that the measurement result is available; and when receiving the measurement result acquisition instruction sent by the network side, send the measurement result to the network side, thereby further reducing Report the signaling overhead occupied by the measurement results and reduce the network transmission load.
  • the UE For the UE in the connected state, if the eNB has learned the capability of the UE to support the WLAN, the UE can be notified by the dedicated RRC signaling, and the beacon whose measurement object is the AP is configured.
  • the event type measurement may be configured on the UE, so that the UE reports to the eNB when the specific event trigger condition is met.
  • An example of an event definition is as follows (the name in the measurement event definition can also be replaced with another name):
  • the RCPI of the CI and beacon frames is higher than a certain threshold:
  • the measurement target of the UE is beacon
  • the measurement identifier is 1
  • the upper 4 is configured as a C1 event. That is, if the RCPI of the beacon frame is higher than a certain threshold, the UE will perform the measurement result. Then the UE will initiate measurement of the beacon frame. If the UE detects that the RCPI of the beacon frame is higher than the configuration threshold, the UE may organize the measurement report message; the upper message identifier is triggered by the measurement event C1. The measurement result will carry the measurement identifier 1 , which is the RCPI value of the beacon and the S SID of the AP. If the UE detects that a beacon frame with multiple APs meets the requirements, it will report a list of beacon measurement results. Or the UE performs a network selection operation when the event is triggered.
  • the RCPI of the C2 and beacon frames is below a certain threshold:
  • the UE detects that the RCPI of the beacon frame is lower than a certain threshold, and the condition for triggering the measurement report is reached,
  • the UE organizes the measurement on the ⁇ message; the upper ⁇ message is identified as the measurement event C2 trigger.
  • the eNB reports the information of the WLAN by using the UE measurement result, or initiates load balancing of the UE according to the basis, for example, instructing the UE to perform a network selection operation.
  • the bearer carries a number of parameters, and can also be configured to report the load of the WLAN carried in the beacon frame. Based on the load, you can define the following events:
  • the load carrying the WLAN in the beacon frame is higher than a certain threshold:
  • the UE may organize the measurement report message; the report message identifier is triggered by the measurement event C3. Or the UE uses the measurement result to perform a network selection operation.
  • the load carrying the WLAN in the beacon frame is below a certain threshold:
  • the UE If the UE detects that the load carrying the WLAN in the beacon frame is lower than a certain threshold, and the condition for triggering the measurement report is reached, the UE organizes the measurement report message; the report message is triggered by the measurement event C4. Or the UE uses the measurement result to perform a network selection operation.
  • the UE may be notified to simultaneously report the RCPI of the beacon frame and the load of the WLAN. Based on the joint measurement of the RCPI of the beacon frame and the WLAN, the following events can be defined:
  • the measured RCPI of the beacon frame is higher than a certain threshold, and the WLAN load carried in the beacon frame is lower than a certain threshold:
  • the beacon frame is measured.
  • the two conditions are met simultaneously. That is, when the RCPI is higher than a certain threshold and the WLAN load is lower than a certain threshold, it is considered that the condition for triggering the measurement report is reached.
  • the organization measures the report message; the report message is triggered by the measurement event C5. Or the UE performs a network selection operation based on this.
  • Some of the measurement items may be performed only for a part of the UE to reduce signaling overhead. For example, e B only wants to obtain the load information of the WLAN, and can only initiate measurement requests to a small number of UEs, because multiple UEs under the same AP may return the same measurement result.
  • the UE If the eNB configures the UE to measure the frame of the WLAN, and the reported amount is the frame count or the average power level RCPI of the received frame, the UE will start the measurement of the received frame, and report the measurement result to the eNB. The eNB will know the communication shield of the WLAN based on this. Or the UE performs a network selection operation based on this.
  • trigger events can also be defined based on this measurement, as follows:
  • the UE may organize the measurement of the upper message; the upper message is identified as the measurement event C6. Or the UE uses the measurement result to perform a network selection operation.
  • the UE organization Measure the ⁇ ⁇ message;
  • the ⁇ ⁇ message is identified as the measurement event C7 trigger.
  • the UE uses the measurement result to perform a network selection operation.
  • the UE measures the channel utilization of the WLAN and sends the measurement result to the eNB.
  • the eNB determines the load status of the WLAN based on the measurement result. Or after the UE measures the channel utilization of the WLAN, the network selection operation is performed based on this.
  • the triggering measurement reporting event can also be defined based on the measurement as follows:
  • the UE If the UE detects that the channel utilization is higher than the set threshold, the condition for triggering the measurement report is reached. At this time, the UE organizes the measurement of the upper message; the upper message is identified as the measurement event C8 trigger;
  • the UE uses the measurement result to perform a network selection operation.
  • the UE If the UE detects that the channel utilization is lower than the set threshold, and the condition for triggering the measurement report is reached, the UE organizes the measurement of the message; the upper message is identified as the measurement event C9;
  • the UE uses the measurement result to perform a network selection operation.
  • the UE can be set to measure the non-IEEE 802.11 noise power in the WLAN.
  • the UE will measure the non-IEEE 802.11 noise power and report the measurement to the eNB. Based on this, the eNB will know the interference condition of the WLAN. Or the UE performs a network selection operation based on this.
  • trigger events can also be defined based on this measurement, as follows:
  • the UE If the UE detects that the non-IEEE 802.11 noise power is higher than the threshold, and the condition for triggering the measurement report is reached, the UE organizes the measurement of the message; the upper message is identified as the measurement event C10. Or the UE uses the measurement result to perform a network selection operation.
  • the UE If the UE detects that the non-IEEE 802.11 noise power is lower than the threshold, and the condition for triggering the measurement report is reached, the UE organizes the measurement report message; the report message is triggered by the measurement event C11. Or the UE performs a network selection operation based on this.
  • the UE will measure the STA statistics and report the measurement result to the eNB. Based on this, the eNB will know the communication shield of the WLAN. Or the UE performs a network selection operation based on the measurement result.
  • the eNB can configure various upper 4 metrics, and the e B can also define multiple trigger measurement reporting events based on the respective reporting amounts:
  • the following events can be defined, for example:
  • the average access delay of C12 and BSS is higher than a certain threshold:
  • the UE If the UE measures that the average access delay of the BSS is higher than a certain threshold, the UE organizes the measurement report message; the report message is triggered by the measurement event C12. Or the UE performs a network selection operation based on this.
  • the average access delay of C13 and BSS is lower than a certain threshold:
  • the UE If the UE measures that the average access delay of the BSS is lower than a certain threshold, the UE organizes the measurement report message; the report message identifier is triggered by the measurement event C13. Or the UE performs a network selection operation based on this.
  • the UE reports its own latitude and longitude information, and the eNB can refer to the information to select a user during load balancing.
  • the eNB can refer to the information to select a user during load balancing.
  • the WLAN can obtain the detailed geographical location information of the UE. If the UE does not support the GPS positioning, the WLAN can roughly estimate the location information of the UE through the AP location.
  • the UE will measure the link measurement and report the measurement result to the eNB. Or the UE performs a network selection operation based on this.
  • trigger events can also be defined based on this measurement, as follows:
  • the link shield is higher than a certain threshold:
  • the UE If the UE detects that the link shield is higher than the threshold, the condition for triggering the measurement report is reached. At this time, the UE organizes the measurement report message; the report message identifier is triggered by the measurement event C14. Or the UE performs a network selection operation based on this.
  • the link shield is below a certain threshold:
  • the UE If the UE detects that the link shield is lower than the threshold and the condition for triggering the measurement report is reached, the UE organizes the measurement report message; the report message identifier is triggered by the measurement event C15. Or the UE performs a network selection operation based on this.
  • the UE is configured to obtain the transmission status of a certain service flow that the AP is transmitting, and report the measurement result to the eNB, so that the eNB selects the reference of the user during load balancing.
  • the UE will simultaneously measure multiple measurement objects in the WLAN and report the measurement results to the eNB. Or UE Based on this, the network selection operation is performed.
  • trigger events can be defined, as follows:
  • the beacon frame is measured.
  • the RCPI is above a certain threshold, and the non-IEEE 802.11 noise power measurement is lower than a certain threshold:
  • the UE will simultaneously measure the RCPI and non-IEEE 802.11 noise power of the beacon frame, if at Time To
  • the UE organizes the measurement report message; the report message is identified as the measurement event. C16 trigger. Or the UE performs a network selection operation based on this.
  • the UE can be configured to perform combined measurement on measurement items such as beacon frame, channel utilization, and link shield, and define the corresponding measurement event. Examples are as follows:
  • the measured RCPI of the data frame is higher than a certain threshold, and the WLAN load carried in the beacon frame is lower than a certain threshold.
  • the UE simultaneously measures the load carrying the WLAN in the data frame and the beacon frame.
  • the two conditions are satisfied at the same time, that is, the data RCPI is higher than a certain threshold and the load carrying the WLAN in the beacon frame is lower than a certain value.
  • the threshold is considered to have reached the condition for triggering the measurement report.
  • the UE organizes the measurement report message; the report message is triggered by the measurement event C17. Or the UE performs a network selection operation based on this.
  • the load carrying the WLAN in the beacon frame is measured below a certain threshold and the non-IEEE 802.11 noise power is also below a certain threshold.
  • the UE simultaneously measures the non-IEEE 802.11 noise power and the load carrying the WLAN in the beacon frame.
  • the two conditions are satisfied at the same time, that is, the non-IEEE 802.11 noise power is lower than a certain threshold and in the beacon frame. If the load carrying the WLAN is lower than a certain threshold, it is considered that the condition for triggering the measurement report is reached.
  • the UE organizes the measurement report message; the report message identifier is triggered by the measurement event C18. Or the UE performs a network selection operation based on this.
  • e B configures the UE to measure the LTE network and the WLAN simultaneously:
  • the UE will perform combined measurement on multiple measurement objects in LTE and WLAN at the same time, and report the measurement result to the eNB. Or the UE performs a network selection operation based on this.
  • trigger events can be defined, as follows:
  • the LTE signal strength (such as RSRP, RSRQ) is higher than a certain threshold, and the average strength of the received signal of the WLAN is lower than a certain threshold:
  • the UE will simultaneously measure the LTE signal strength and the WLAN link shield. If the UE detects that the LTE signal strength (such as RSRP, RSRQ) is higher than a certain threshold in the Time To Trigger time, the average received signal strength of the WLAN. Below a certain threshold; the UE organizes the measurement of the last message; the upper 4 message is identified as the measurement event C19 trigger. Or the UE performs a network selection operation based on this.
  • the LTE signal strength such as RSRP, RSRQ
  • the LTE signal strength (such as RSRP, RSRQ) is lower than a certain threshold, and the beacon measurement signal strength of the WLAN is higher than a certain threshold, and the load of the WLAN beacon measurement is lower than a certain threshold:
  • the UE will measure the signal strength of the LTE and the WLAN beacon simultaneously. If the UE detects that the LTE signal strength (such as RSRP, RSRQ) is lower than a certain threshold in the Time To Trigger time, the UE measures the signal strength of the WLAN beacon. At the same time, the load of the WLAN beacon is lower than a certain threshold, and the condition for triggering the measurement report is reached. At this time, the UE organizes the measurement report message; the report message identifier is triggered by the measurement event C20. Or the UE performs a network selection operation based on this.
  • the LTE signal strength such as RSRP, RSRQ
  • the UE may be configured to perform combined measurement on the signal strength of the LTE, the beacon frame of the WLAN, the non-IEEE 802.11 noise power in the WLAN, the link shield, and the like, and define corresponding measurement reporting events.
  • the e-B broadcast WLAN load measurement configuration the UE measures the WLAN load according to the WLAN load measurement configuration broadcast by the eNB, and after determining the WLAN load, the UE reports the WLAN load to the network side according to the reporting configuration; as shown in FIG. 9b.
  • the eNB broadcasts the network selection threshold, and the UE performs the network selection operation based on the threshold after the measurement:
  • the eNB broadcasts a network selection threshold for the WLAN measurement, and the UE performs a network selection operation based on the threshold after the measurement.
  • the WLAN load measurement configuration is the same as the dedicated signaling notification method. For example, if the eNB broadcasts the UE to measure the beacon frame, the RCPI of the beacon frame needs to be higher than a certain threshold to allow the UE to access the WLAN. Then the UE opens the pair
  • the WLAN measurement initiates access to the AP if it is determined that the RCPI of the AP's beacon frame meets the threshold requirement.
  • the UE After determining the WLAN load, the UE saves the measurement result measured by the WLAN load and informs the network side that the measurement result is available.
  • the network side can obtain measurement results from the UE as needed.
  • the process includes:
  • Step S901 The UE informs the network side through the RRC message that the WLAN load has been measured, and the measurement result is available.
  • Step S902 The network side determines that the WLAN load measurement result needs to be obtained.
  • Step S903 The network side sends an instruction to obtain a measurement result to the UE.
  • Step S904 The UE sends the measurement result to the network side.
  • the network side can get the latest WLAN load measurement results whenever needed.
  • Embodiments 1 through 10 are based on carrying an RRC connection reconfiguration message configured for WLAN load measurement
  • Embodiments 11 and 12 are based on carrying WLAN load measurement configuration and threshold setting parameters. Broadcast message.
  • Those skilled in the art can set other measurement methods and reporting conditions according to the above embodiments and actual situations, and are not exemplified here.
  • the embodiment of the present application further provides a WLAN load determining method on the network side, as shown in FIG. 10, including: Step S1001: determining an indication message for instructing the UE to perform WLAN load measurement;
  • Step S1002 Send an indication message for instructing the UE to perform WLAN load measurement to the UE, so that the UE is configured to
  • the WLAN load is measured to determine the WLAN load.
  • the indication message is specifically:
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the method further includes:
  • WLAN load measurement configuration including:
  • the indication message is also used to:
  • the UE is configured to measure other WLAN parameters except the WLAN load.
  • the indication message is also used to:
  • the UE is configured to measure the signal strength of the LTE network.
  • the indication message is also used to:
  • the indication message further includes:
  • the method further includes:
  • the UE After receiving the measurement result of the WLAN load, the UE sends a notification message indicating that the measurement result is available; and, when the measurement result needs to be acquired, sends a measurement result acquisition instruction to the UE, and receives the measurement result sent by the UE.
  • the embodiment of the present application further provides a WLAN load determining apparatus, where the apparatus may be a UE, as shown in FIG.
  • the device includes:
  • the receiving unit 1101 is configured to receive an indication message that is sent by the network side to instruct the UE to perform WLAN load measurement.
  • the measuring unit 1102 is configured to measure the WLAN load and determine the WLAN load.
  • the indication message is specifically:
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the measurement unit measures the WLAN load and, after determining the WLAN load, is also used to:
  • the measurement unit measures the WLAN load and, after determining the WLAN load, is also used to:
  • the measurement result is sent to the network side.
  • the embodiment of the present invention further provides a user equipment, as shown in FIG. 12, including a radio frequency unit 1201 and a processor 1202.
  • the radio unit 1201 is configured to receive an indication message sent by the network side to instruct the UE to perform WLAN load measurement.
  • the processor 1202 is configured to measure the WLAN load to determine the WLAN load.
  • the user equipment provided by the embodiment of the present application performs corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • the embodiment of the present application further provides a WLAN load determining apparatus, which may be specifically an eNB. As shown in FIG. 13, the apparatus includes:
  • the determining unit 1300 is configured to determine an indication message used to indicate that the UE performs WLAN load measurement.
  • the sending unit 1301 is configured to send, to the UE, an indication message for instructing the UE to perform WLAN load measurement, so that the UE measures the WLAN load to determine the WLAN load.
  • the indication message is specifically:
  • Broadcast messages carrying WLAN load measurement configuration and threshold setting parameters carrying WLAN load measurement configuration and threshold setting parameters.
  • the method further includes:
  • the load receiving unit 1302 is configured to receive a WLAN load reported by the UE.
  • the WLAN load measurement configuration specifically includes:
  • the UE is configured to measure the channel utilization of the WLAN.
  • the indication message is also used to:
  • the UE is configured to measure other WLAN parameters except the WLAN load.
  • the indication message is also used to:
  • the UE is configured to measure the signal strength of the LTE network.
  • the indication message is also used to:
  • the load receiving unit 1302 is specifically configured to:
  • the indication message also includes:
  • the load receiving unit 1302 is specifically configured to:
  • the device further includes:
  • an acquiring unit configured to: after receiving the measurement result of the WLAN load, send a notification message indicating that the measurement result is available; when the measurement result needs to be acquired, send a measurement result acquisition instruction to the UE, and receive the measurement result sent by the UE.
  • the embodiment of the present application provides a network side device, which may be, but is not limited to, an eNB. As shown in FIG. 14, the processor 1401 and the radio frequency unit 1402 are included.
  • the processor 1401 is configured to: determine an indication message for instructing the UE to perform WLAN load measurement; the radio unit 1402 is configured to send, to the UE, an indication message for instructing the UE to perform WLAN load measurement, so that the UE performs the WLAN load Measure, determine the WLAN load.
  • the network side device provided by the embodiment of the present application enables the UE to perform corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and realizing the determination of the WLAN load.
  • the embodiment of the present application further provides a WLAN load determining system, as shown in FIG.
  • the UE1501 is configured to receive an indication message sent by the network side to instruct the UE to perform WLAN load measurement, and measure the WLAN load to determine a WLAN load.
  • the base station 1502 is configured to determine an indication message for instructing the UE to perform WLAN load measurement, and send an indication message for instructing the UE to perform WLAN load measurement to the user equipment UE, so that the UE measures the WLAN load to determine the WLAN load.
  • the embodiment of the present application provides a method, a device, and a system for determining a WLAN load.
  • the UE performs corresponding measurement on the WLAN load according to the indication of the network side, thereby obtaining a WLAN load, and implementing the determination of the WLAN load.
  • the UE may further perform a network selection operation according to the load, thereby reducing the probability of network selection failure, and may also load the load. It is sent to the network side, so that the network side can also determine the WLAN load, thereby performing operations such as load balancing.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the application can be in the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • the application can be in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention porte sur un procédé, un dispositif et un système de détermination de charge de WLAN, qui concernent les technologies de communication. Un UE effectue une mesure correspondante sur une charge de WLAN conformément à une indication d'un côté réseau, ce qui permet d'obtenir la charge de WLAN, et de réaliser la détermination de la charge de WLAN. Par ailleurs, l'UE peut également effectuer une opération de sélection de réseau en fonction de la charge, de manière à réduire la probabilité d'un échec de sélection de réseau, et peut également envoyer la charge au côté réseau, de manière à permettre au côté réseau de déterminer la charge de WLAN aussi bien, ce qui permet d'effectuer des opérations telles qu'un équilibrage de charge.
PCT/CN2014/070923 2013-02-06 2014-01-20 Procédé, dispositif et système de détermination de charge de wlan WO2014121688A1 (fr)

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CN104581812A (zh) * 2015-01-15 2015-04-29 中兴通讯股份有限公司 Wlan测量方法、lte基站、终端及wlan基站
CN105491627A (zh) * 2015-12-10 2016-04-13 南京理工大学 一种异构网络的网络选择优化方法
CN108430073A (zh) * 2017-02-15 2018-08-21 中兴通讯股份有限公司 移动网络控制终端进行wlan测量的方法及装置、系统
CN110224803B (zh) * 2019-07-10 2021-11-23 济宁微晶电子科技有限公司 一种实现beacon自主发现的LoRa通信方法

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WO2006005224A1 (fr) * 2004-07-12 2006-01-19 Zte Corporation Procede d'equilibrage de charge d'un reseau local sans fil
CN102573010A (zh) * 2012-01-06 2012-07-11 中兴通讯股份有限公司 基于多网络的数据传输方法及装置

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Publication number Priority date Publication date Assignee Title
WO2006005224A1 (fr) * 2004-07-12 2006-01-19 Zte Corporation Procede d'equilibrage de charge d'un reseau local sans fil
CN102573010A (zh) * 2012-01-06 2012-07-11 中兴通讯股份有限公司 基于多网络的数据传输方法及装置

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