WO2017076255A1 - Procédé pour équilibrer la charge d'un réseau sans fil, équipement de réseau et équipement de terminal - Google Patents

Procédé pour équilibrer la charge d'un réseau sans fil, équipement de réseau et équipement de terminal Download PDF

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Publication number
WO2017076255A1
WO2017076255A1 PCT/CN2016/104036 CN2016104036W WO2017076255A1 WO 2017076255 A1 WO2017076255 A1 WO 2017076255A1 CN 2016104036 W CN2016104036 W CN 2016104036W WO 2017076255 A1 WO2017076255 A1 WO 2017076255A1
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Prior art keywords
access point
information
terminal device
network
network device
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PCT/CN2016/104036
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English (en)
Chinese (zh)
Inventor
朱广勇
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深圳市金立通信设备有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/086—Load balancing or load distribution among access entities
    • H04W28/0861—Load balancing or load distribution among access entities between base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for load balancing a wireless network, a network device, and a terminal device.
  • the carrier's mobile network and WLAN network are two independently operated networks, and often the WLAN network is in a low-utilization state. Therefore, how to better integrate and coordinate the operator's mobile network and WLAN network resources and improve operations The utilization of commercial network resources is also an urgent problem for operators.
  • the Third Generation Partnership Project (3GPP) has studied how to implement the 12 (Release 12) Radio Access Network (RAN2) WLAN/3GPP Radio Interworking project.
  • the wireless side further integrates the Long Term Evolution (LTE) network and the WLAN network on the Radio Access Network (RAN) side to achieve dynamic load balancing.
  • LTE Long Term Evolution
  • RAN Radio Access Network
  • the embodiment of the invention provides a method for load balancing of a wireless network, and the network device and the terminal device are used to implement more efficient offloading in the heterogeneous network, and improve the load balancing effect of the load balancing.
  • An embodiment of the present invention provides a method for load balancing a wireless network, including:
  • the network device sends a first indication message to the terminal device, where the first indication message is used to indicate that the access point information is reported, and the network device belongs to the first wireless network;
  • the network device receives the access point information returned by the terminal device; the access point information includes a candidate access point, and the candidate access point belongs to the second wireless network;
  • the network device selects an access point from the candidate access points as a target access point
  • the network device offloads the service of the terminal device to the target access point.
  • the method before the sending, by the network device, the first indication message to the terminal device, the method further includes:
  • the network device determines that load balancing needs to be performed according to a predetermined rule, and then selects the terminal device.
  • the first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: medium access control layer address information of the access point to be selected, access point type, channel quality information, load status information, and at least one of network identifiers item.
  • the first indication message further includes: an access point identifier set that needs to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and needs to be reported to be selected.
  • the access point media access control layer address information, access point type, channel quality information, load status information, and network identification.
  • the network device directs the service of the terminal device
  • the target access point split includes:
  • the method further includes:
  • the other terminal device is selected to perform load balancing, determining, according to the status information of the target access point, whether the target access point is used as the candidate access point for the other terminal device.
  • the network device is an evolved base station
  • the candidate access point includes an access point from a wireless local area network
  • the first indication message is sent by using radio resource control RRC signaling.
  • the second embodiment of the present invention further provides a method for load balancing a wireless network, including:
  • the network device belongs to the first wireless network
  • the terminal device After receiving the first indication message, the terminal device detects the access point to obtain access point information;
  • the terminal device sends the access point information to the network device, where the access point information includes a candidate access point, and the candidate access point belongs to the second wireless network;
  • the terminal device offloads the service of the network device to a target access point, where the target access point is an access point selected by the network device from the to-be-selected access point.
  • the first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: media access control layer address information of the candidate access point, access point type, channel quality information, and load status. At least one of the information, as well as the network logo.
  • the first indication message further includes: an access point identifier set that needs to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and needs to be reported to be selected.
  • the access point media access control layer address information, access point type, channel quality information, load status information, and network identification.
  • the terminal device offloads the service of the network device to the target access point, including:
  • the method further includes:
  • the terminal device After receiving the second indication message, the terminal device detects that the target access point obtains state information of the target access point, and sends the target connection to the network device periodically or eventally. Status information of the in point.
  • the network device is an evolved base station
  • the candidate access point includes an access point from a wireless local area network
  • the first indication message is sent by using radio resource control RRC signaling.
  • the third aspect of the present invention further provides a network device, including:
  • a sending unit configured to send a first indication message to the terminal device, where the first indication message is used to indicate that the access point information is reported, and the network device belongs to the first wireless network;
  • a receiving unit configured to receive the access point information returned by the terminal device;
  • the access point information includes a to-be-selected access point, where the to-be-selected access point belongs to the second wireless network;
  • a selecting unit configured to select an access point from the candidate access points as a target access point
  • the offloading control unit is configured to offload the service of the terminal device to the target access point.
  • the network device further includes:
  • the requirement determining unit is configured to determine that load balancing needs to be performed according to a predetermined rule before the sending unit sends the first indication message to the terminal device, and then select the terminal device.
  • the first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: medium access control layer address information of the access point to be selected, access point type, channel quality information, load status information, and at least one of network identifiers item.
  • the first indication message further includes: an access point identifier set that needs to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and needs to be reported to be selected.
  • the access point media access control layer address information, access point type, channel quality information, load status information, and network identification.
  • the offloading control unit is configured to control the sending unit to send information about the target access point to the terminal device, and notify the terminal device to establish communication with the target access point. Connecting; then, offloading the data stream involved in the service of the terminal device to the target access point.
  • the sending unit is further configured to: after the selecting unit selects an access point from the candidate access point as the target access point, send a second indication to the terminal device a message, the second indication message is used to indicate that the terminal device periodically or event-triggeredly returns status information of the target access point;
  • the selecting unit is further configured to determine, if the other terminal device is selected, load balancing, determining, according to the state information of the target access point, whether the target access point is used as the other terminal device.
  • Optional access point is further configured to determine, if the other terminal device is selected, load balancing, determining, according to the state information of the target access point, whether the target access point is used as the other terminal device.
  • the network device is an evolved base station
  • the candidate access point includes an access point from a wireless local area network
  • the first indication message is sent by using radio resource control RRC signaling.
  • the fourth aspect of the present invention further provides a terminal device, including:
  • a receiving unit configured to receive a first indication message from a network device; the network device belongs to a first wireless network;
  • a detecting unit configured to: after the receiving unit receives the first indication message, perform detection on the access point to obtain access point information
  • a sending unit configured to send, to the network device, access point information, where the access point information includes a to-be-selected access point, where the to-be-selected access point belongs to a second wireless network;
  • a traffic distribution control unit configured to offload traffic of the network device to a target access point, where the target access point is an access point selected by the network device from the candidate access point.
  • the first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: medium access control layer address information of the access point to be selected, access point type, channel quality information, load status information, and at least one of network identifiers item.
  • the first indication message further includes: an access point identifier set that needs to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and needs to be reported to be selected.
  • the access point media access control layer address information, access point type, channel quality information, load status information, and network identification.
  • the offload control unit is configured to establish a communication connection with the target access point according to information from a target access point of the network device, and then, the service of the terminal device The involved data stream is offloaded to the target access point.
  • the terminal device further includes:
  • the receiving unit is further configured to receive a second indication message from the network device
  • the detecting unit is further configured to: after the receiving unit receives the second indication message, detect that the target access point obtains state information of the target access point;
  • the sending unit is further configured to periodically send the status information of the target access point to the network device periodically or by an event.
  • the network device is an evolved base station
  • the candidate access point includes an access point from a wireless local area network
  • the first indication message is sent by using radio resource control RRC signaling.
  • the embodiment of the present invention has the following advantages: the network device sends an indication to the terminal device, and the terminal device reports the access point information, the access point information is more accurate and timely, and the network device can be accurate according to the Determine the target access point that can be offloaded to achieve optimized network offloading. Therefore, more efficient offloading is implemented in the heterogeneous network, and the load balancing effect of the load balancing is improved.
  • FIG. 1 is a schematic flowchart of a method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the LTE evolving base station (E-UTRAN Node B, eNB) is obtained through operation and maintenance (OAM) or pre-configured mode in the process of performing load balancing.
  • OAM operation and maintenance
  • Information about the WLAN network is obtained.
  • the RAN side provides auxiliary information to the user equipment (User Equipment, UE) through broadcast signaling or dedicated signaling.
  • the UE utilizes the auxiliary information provided by the RAN side, the measurement information of the UE, the information provided by the WLAN, and the policy obtained by the Access Network Discovery and Selection Function (ANDSF) or a preset strategy. Traffic is offloaded to the WLAN or RAN side.
  • UE User Equipment
  • ANDSF Access Network Discovery and Selection Function
  • Solution 2 The specific rules of network selection and service offloading are specified by the RAN side standard, and the RAN provides the parameter thresholds required in the RAN rule by broadcasting and/or dedicated signaling.
  • the UE offloads the service to the WLAN or 3GPP according to the shunting rule specified by the RAN side; when the ANDSF exists at the same time, the ANDSF rule takes precedence over the RAN rule.
  • the RAN side provides auxiliary information to the UE by using broadcast signaling or dedicated signaling. If both the network and the user support the ANDSF, the UE uses the auxiliary information provided by the RAN side, and obtains a traffic off policy from the ANDSF to offload the service to the WLAN or RAN side. If the network or the user does not support the ANDSF, the UE uses the auxiliary information provided by the RAN side and offloads the service to the WLAN or RAN side according to a preset policy in the RAN protocol. Moreover, the RAN side may also provide an alternative WLAN identity (ID) in the broadcast signaling or the dedicated signaling, so that the UE can quickly find the target WLAN AP for offloading.
  • ID WLAN identity
  • the service offload can support the access point name (Access) Point Name, APN) traffic offloading, but it cannot support bearer-level traffic offloading.
  • APN Access Point Name
  • the LTE eNB obtains related information of the relevant WLAN network through OAM or a pre-configured manner, the information update is not timely, resulting in poor shunting effect.
  • the embodiments of the present invention mainly relate to how to perform deep integration of LTE and WLAN on the wireless side.
  • the technical solution can enable the LTE eNB to dynamically obtain the working information of the WLAN AP, so that the LTE eNB can obtain the information of the WLAN AP in its own coverage, configure the LTE UE better, perform more accurate and fast services, and Traffic offloading.
  • the eNB may send a WLAN AP Probing Radio Resource Control (RRC) to the UE.
  • RRC Radio Resource Control
  • the signaling, and the WLAN AP parameters that need to be measured and reported by the UE, for example, the WLAN AP parameters to be reported include the type of the WLAN AP, the medium access control layer (MAC) address, the load status, and The channel quality of the WLAN AP, etc.; the RRC signaling may also include a Service Set Identifier (SSID) that needs to measure the WLAN AP, so that the UE can detect the WLAN AP more accurately and quickly.
  • SSID Service Set Identifier
  • the UE After receiving the RRC signaling command, the UE initiates an active search for the WLAN APs that meet the requirements and actively obtains the information to be reported, and then reports the information to the LTE eNB through the new RRC signaling.
  • the LTE eNB After receiving the reported information, the LTE eNB can decide whether to offload the services of these UEs to a certain WLAN AP network according to the information.
  • the LTE eNB may also send a new WLAN measurement configuration RRC signaling, requesting a certain UE to perform periodic or event-triggered reporting on the information of the connected WLAN AP for LTE.
  • the eNB can obtain the latest information of nearby WLAN APs in a timely and accurate manner.
  • the LTE eNB can also use the information reported by the UEs to serve the UEs that need to use the wireless side deep convergence feature to prevent all UEs from performing measurements and reduce the energy consumption of the UE.
  • RRC signaling can also pass the MAC CE command, or Layer 1 control.
  • the signaling is implemented, and the signaling carrying the indication is not limited by the embodiment of the present invention.
  • LTE and WLAN are only examples of two different types of networks. If other networks are also fused, generally, the present invention can be used as long as the two networks do not completely use the same network resources. Implementation of the embodiment.
  • FIG. 1 is a system architecture diagram of an embodiment of the present invention.
  • a terminal device, a first wireless access point, and a second wireless access point belong to a first wireless network and a second wireless network; It is an access device such as a base station, and may also be another network device with network management capabilities. There may already be traffic transmission between the terminal device and the network device before the solution.
  • the embodiment of the invention provides a method for load balancing of a wireless network. As shown in FIG. 2, please refer to FIG. 1 together, including:
  • the network device sends a first indication message to the terminal device, where the first indication message is used to indicate that the access point information is reported, and the network device belongs to the first wireless network;
  • the triggering condition for the network device to send the first indication message may be automatic, for example, the self-overloading or the overloading, the self-loading to a certain extent, the demand for the shunting, the detection of a large delay of the network, and the terminal
  • the device has a large traffic demand, and the like, and may be passively triggered, for example, receiving a shunt request of the terminal device, receiving the shunting capability information of the terminal device, and the like.
  • the first indication message may be broadcasted, or may be sent to some terminal devices in a directional manner.
  • the first indication message may be dedicated signaling, or the information modification required to be carried by the first message may be added to the existing one. In signaling, for example, an extension field or the like.
  • the first indication message may also indicate that the terminal device needs to perform measurement first, and then report the measured access point information. Therefore, the terminal device may be prevented from reporting the stored access point information that may not be updated in time.
  • first and second are only used to distinguish two different names, and do not have other technical meanings, and should not be construed as having other technical meanings.
  • the network device receives the access point information returned by the terminal device, where the access point information includes a candidate access point, and the candidate access point belongs to the second wireless network.
  • the terminal device may return information of all access points that can receive the signal, or may only select information of the access point with better signal, or further select information of the access point whose signal strength is greater than a predetermined threshold and the network device supports the offloading. Or, it may be information of an access point specified by the network device.
  • the access point information may be a table of access point information, and the access point is selected according to the network device for offloading, and the required information is determined, and the required information may also be specified by the network device.
  • the foregoing network device selects an access point from the candidate access points as a target access point
  • Selecting an access point may be based on the load condition of the candidate access point, the signal strength of the feedback of the terminal device, the channel quality, and the like, and may be comprehensively considered.
  • the network optimization algorithm may be referred to, and how to select the embodiment of the present invention is not unique. Sexual limitation.
  • the foregoing network device offloads the service of the terminal device to the target access point.
  • the offloaded service may be a data transmission service, such as a data transmission service.
  • the traffic distribution may be equal to the traffic, or may be non-uniform, and may be evenly distributed to the target access point, which is not limited in this embodiment of the present invention.
  • the network device sends an indication to the terminal device, and the terminal device reports the access point information, where the information of the access point is accurate and timely, and the network device can accurately determine the target access point that can be offloaded, thereby achieving optimization.
  • the network is offloaded, so that a more efficient offloading is implemented in the heterogeneous network, and the load balancing effect of the load balancing is improved.
  • the method further includes:
  • the network device determines that load balancing needs to be performed according to a predetermined rule, and then selects the terminal device.
  • This embodiment adopts an implementation scheme of automatically starting the offloading by the network side, where the predetermined rule may be any possible triggering condition that requires load balancing, which is not limited by the embodiment of the present invention.
  • the foregoing first indication message further includes:
  • Content indication information the content indication information indicating that the content needs to be reported includes: At least one of the incoming media access control layer address information, access point type, channel quality information, load status information, and network indication.
  • the foregoing first indication message further includes: an access point identifier set to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and the medium access control of the to-be-selected access point needs to be reported.
  • the channel may further include a channel identifier for enabling the terminal device to accurately and quickly learn the channel that needs to be detected, and if there is a channel-related information in the access point information that the terminal device returns to the network device
  • the parameter may also carry a corresponding channel identifier.
  • the first indication message carries at least an indication that the terminal device reports the access point.
  • the access point reported by the terminal device should be an access point that can be used for offloading services.
  • the network device can specify which information is specifically reported by the terminal device. The specific information is exemplified above, so that the network device can more accurately determine the target access point. Since the terminal device may not know that the network device can support the offloaded access point, and the access point information returned by the terminal device includes useless access point information, the network device may specify the access point in advance, so that the terminal measurement may be reduced. Workload, reduce power consumption.
  • the network device even if the terminal device reports all the access points that can be accessed, the network device only needs to select the support for the offloading at the time of selection, so that the range of access points is reported by the terminal device.
  • the implementation of the embodiments of the present invention is not affected.
  • the foregoing network device offloading the service of the foregoing terminal device to the target access point includes:
  • the network device sends the information of the target access point to the terminal device, and informs the terminal device to establish a communication connection with the target access point; and then, the data stream related to the service of the terminal device is offloaded to the target access point.
  • This embodiment also provides a specific implementation process of the network device offloading as a preferred implementation, and the process is relatively simple for reference.
  • the method further includes:
  • the terminal device may also be required to report the information of the target access point, such as the channel quality and the load situation, so that the subsequent network device can directly determine the target access point instead of Each time the offloading requires the terminal device to perform measurements, thereby reducing the measurement work of the terminal device. It may be necessary to perform, for example, determining an access point currently accessible by the "other terminal device" before determining the target access point, or the currently accessed access point then determining access near the currently accessed access point. point. Then, among these access points, the access point is selected as the target access point according to the status information returned by the previous terminal device.
  • the network device is an evolved base station
  • the candidate access point includes an access point from a wireless local area network
  • the first indication message uses a radio resource to control RRC signaling. send.
  • the network device is not limited to an evolved base station, for example, a base station, a base station manager, etc.
  • the access point to be selected is not limited to an access point of a wireless local area network, and other access points are, for example,
  • the access point of the macro base station, the access point of the third generation communication system, and the like are all possible, and the optional signaling for transmitting the first indication message should not be limited to RRC signaling, and may be different according to different networks. Signaling transmission. Therefore, the above examples are not to be construed as limiting the invention.
  • a second embodiment of the present invention provides a method for load balancing a wireless network, as shown in FIG. 3, including:
  • the terminal device receives a first indication message from the network device, where the network device belongs to the first wireless network.
  • the first indication message is used to indicate that the terminal device reports the access point information, and the first indication message may be broadcast, or may be sent to some terminal devices with directivity.
  • the first indication message may be dedicated signaling, or may be modified to add a message carried in the already existing signaling, such as an extension field.
  • the terminal device After receiving the first indication message, the terminal device detects the access point to obtain access point information.
  • the detection of the access point may be to detect all the access points that can be detected, or to detect the access points of some networks, and the obtained access points may be all access points that can be accessed. It may also be an access point that satisfies some preset conditions, such as satisfying a strong signal strength, a good channel quality, and the like.
  • the terminal device sends the access point information to the network device, where the access point information includes a candidate access point, and the candidate access point belongs to the second wireless network.
  • the access point information may be an access point obtained by all the probes, or may be filtered in advance, for example, canceling an access point with a small signal strength, a poor channel quality, and a heavy load.
  • the screening rule can be arbitrarily set according to the principle of favorable splitting, and the embodiment of the present invention is not limited.
  • the terminal device offloads the service of the network device to a target access point, where the target access point is an access point selected by the network device from the candidate access points.
  • the offloaded service may be a data transmission service, such as a data transmission service.
  • the traffic distribution may be equal to the traffic, or may be non-uniform, and may be evenly distributed to the target access point, which is not limited in this embodiment of the present invention.
  • the network device sends an indication to the terminal device, and the terminal device reports the access point information, where the information of the access point is accurate and timely, and the network device can accurately determine the target access point that can be offloaded, thereby achieving optimization.
  • the network is offloaded, so that a more efficient offloading is implemented in the heterogeneous network, and the load balancing effect of the load balancing is improved.
  • the foregoing first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: media access control layer address information, access point type, channel quality information, and load status of the access point to be selected At least one of the information, as well as the network logo.
  • the foregoing first indication message further includes: an access point identifier set to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and the medium access control of the to-be-selected access point needs to be reported. At least one of layer address information, access point type, channel quality information, load status information, and network label.
  • the foregoing terminal device offloads the service of the foregoing network device to the target access point, including:
  • the terminal device receives information from the target access point of the network device, establishes a communication connection with the target access point, and then offloads the data stream related to the service of the terminal device to the target access point.
  • the embodiment of the present invention further provides the following solution according to the information requirement of the network side: the foregoing method further includes:
  • the terminal device receives the second indication message from the network device
  • the terminal device After receiving the second indication message, the terminal device detects that the target access point obtains the status information of the target access point, and periodically or events triggers the status information of the target access point to the network device.
  • the terminal device may also be required to report the information of the target access point, such as the channel quality and the load situation, so that the subsequent network device can directly determine the target access point instead of Each time the offloading requires the terminal device to perform measurements, thereby reducing the measurement work of the terminal device.
  • the network device is an evolved base station, and the candidate access point includes an access point from a wireless local area network; and the first indication message is sent by using radio resource control RRC signaling.
  • the following embodiment takes the load balancing of the LTE and WLAN networks as an example to offload the services of the LTE network to the WLAN, as follows:
  • Step 1 As shown in FIG. 4, at the time T1, the network load of the LTE eNB becomes very heavy, and the LTE eNB wants to use the WLAN network for offloading, and then the LTE eNB sends the user 1 , user 2 and user 3 with heavy traffic volume.
  • WLAN probe command which requires the user to report the surrounding WLAN AP.
  • the signaling may also include the Service Set Identifier (SSID) of the WLAN AP that needs to be reported, so that the user can more accurately detect the required condition.
  • WLAN APs such as WLAN APs that support wireless side convergence.
  • Step 2 After receiving the signaling, the users 1, 2, and 3 start to detect the surrounding WLAN APs and report the information of the WLAN APs that meet the SSID requirements. For example, users 1, 2, and 3 discover WLAN AP1, and the type of WLAN AP1 (for example, 802.11ac type), MAC address (for example, 00:11:22:35:56:34), load status (for example, low load) The channel quality of the WLAN AP is reported to the LTE eNB through the WLAN Probing Report.
  • the type of WLAN AP1 for example, 802.11ac type
  • MAC address for example, 00:11:22:35:56:34
  • load status for example, low load
  • Step 3 The LTE eNB decides to offload part of the service of the user 1 to the WLAN AP1 according to the information reported by the user, and configures the user 1 to periodically report the information of the WLAN AP1 to the LTE eNB to maintain the latest information about the WLAN AP1. Make an update to the uninstallation decision.
  • the periodic report may be required, or the latest information of the WLAN AP1 may be reported by the event triggered by the user equipment.
  • the possible signaling forms of the "WLAN Detection Command” in Step 1 and the “WLAN Detection Report” in Step 2 are presented below.
  • the "WLAN detection command” can be implemented by modifying the measObjectToAddModList signaling and the reportConfigToAddModList signaling in the MeasConfig signaling in the RRC signaling RRCConnectionReconfiguration.
  • the "WLAN Probe Report” can be implemented by modifying the MeasResults signaling in the RRC Signaling MeasurementReport.
  • MeasObjectToAddModList is introduced as follows:
  • the new MeasObject WLAN is introduced as follows:
  • ReportConfigToAddModList is introduced as follows:
  • the new ReportConfigWLAN is introduced as follows:
  • the MeasObject WLAN signaling is used to indicate the WLAN AP that the UE needs to measure.
  • the reportConfig WLAN signaling is used to indicate the WLAN AP parameters that the UE uses to measure and report.
  • the UE reports the measurement result required by the LTE eNB by sending the newly added measResultList WLAN signaling in the MeasResults signaling.
  • the LTE eNB can promptly and dynamically request the user to discover the related WLAN AP and report the information.
  • the LTE eNB can use this information to make accurate, dynamic, and timely load decisions.
  • the LTE eNB can maintain the validity of the WLAN AP information by configuring periodic or event-triggered reporting.
  • the LTE eNB can use this information to make an offload decision for other users and improve the utilization of information.
  • An embodiment of the present invention further provides a network device, as shown in FIG. 5, including:
  • the sending unit 501 is configured to send a first indication message to the terminal device, where the first indication message is used to indicate that the access point information is reported, and the network device belongs to the first wireless network;
  • the receiving unit 502 is configured to receive the access point information returned by the terminal device, where the access point information includes the to-be-selected access point, and the to-be-selected access point belongs to the second wireless network;
  • the selecting unit 503 is configured to select an access point from the to-be-selected access points as the target access point;
  • the offload control unit 504 is configured to offload the service of the terminal device to the target access point.
  • the triggering condition for the network device to send the first indication message may be automatic, for example, the self-overloading or the overloading, the self-loading to a certain extent, the demand for the shunting, the detection of a large delay of the network, and the terminal
  • the device has a large traffic demand, and the like, and may be passively triggered, for example, receiving a shunt request of the terminal device, receiving the shunting capability information of the terminal device, and the like.
  • the first indication message may be broadcasted, or may be sent to some terminal devices in a directional manner.
  • the first indication message may be dedicated signaling, or the information modification required to be carried by the first message may be added to the existing one. In signaling, for example Extended fields, etc.
  • first and second are only used to distinguish two different names, and do not have other technical meanings, and should not be construed as having other technical meanings.
  • the terminal device may return information of all access points that can receive the signal, or may only select information of the access point with better signal, or further select information of the access point whose signal strength is greater than a predetermined threshold and the network device supports the offloading. Or, it may be information of an access point specified by the network device.
  • the access point information may be a table of access point information, and the access point is selected according to the network device for offloading, and the required information is determined, and the required information may also be specified by the network device.
  • Selecting an access point may be based on the load condition of the candidate access point, the signal strength of the feedback of the terminal device, the channel quality, and the like, and may be comprehensively considered.
  • the network optimization algorithm may be referred to, and how to select the embodiment of the present invention is not unique. Sexual limitation.
  • the offloaded service may be a data transmission service, such as a data transmission service.
  • the traffic distribution may be equal to the traffic, or may be non-uniform, and may be evenly distributed to the target access point, which is not limited in this embodiment of the present invention.
  • the network device sends an indication to the terminal device, and the terminal device reports the access point information, where the information of the access point is accurate and timely, and the network device can accurately determine the target access point that can be offloaded, thereby achieving optimization.
  • the network is offloaded, so that a more efficient offloading is implemented in the heterogeneous network, and the load balancing effect of the load balancing is improved.
  • the foregoing network device further includes:
  • the requirement determining unit 601 is configured to determine that load balancing needs to be performed according to a predetermined rule before the sending unit 501 sends the first indication message to the terminal device, and then select the terminal device.
  • This embodiment adopts an implementation scheme of automatically starting the offloading by the network side, where the predetermined rule may be any possible triggering condition that requires load balancing, which is not limited by the embodiment of the present invention.
  • the foregoing first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: media access control layer address information of the access point to be selected, access point type, channel quality information, load status information, and at least one of network identifiers .
  • the foregoing first indication message further includes: an access point identifier set to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and the medium access control of the to-be-selected access point needs to be reported. At least one of layer address information, access point type, channel quality information, load status information, and network label.
  • the first indication message carries at least an indication that the terminal device reports the access point.
  • the access point reported by the terminal device should be an access point that can be used for offloading services.
  • the network device can specify which information is specifically reported by the terminal device. The specific information is exemplified above, so that the network device can more accurately determine the target access point. Since the terminal device may not know that the network device can support the offloaded access point, and the access point information returned by the terminal device includes useless access point information, the network device may specify the access point in advance, so that the terminal measurement may be reduced. Workload, reduce power consumption.
  • the network device even if the terminal device reports all the access points that can be accessed, the network device only needs to select the support for the offloading at the time of selection, so that the range of access points is reported by the terminal device.
  • the implementation of the embodiments of the present invention is not affected.
  • the foregoing offloading control unit 504 is configured to control the sending unit 501 to send the information about the target access point to the terminal device, to notify the terminal device to establish a communication connection with the target access point; and then, the terminal device is The data flow involved in the business is offloaded to the above target access point.
  • This embodiment also provides a specific implementation process of the network device offloading as a preferred implementation, and the process is relatively simple for reference.
  • the sending unit 501 is further configured to: after the selecting unit 503 selects an access point from the to-be-selected access point as the target access point, sending a second indication message to the terminal device, where the second indication message is And indicating, by the foregoing terminal device, status information that is periodically or event-triggered to return to the target access point;
  • the selecting unit 503 is further configured to determine, if the other terminal device is selected, load balancing, according to the status information of the target access point, whether to use the target access point as a candidate for the other terminal device to be selected. Entry point.
  • the terminal device may also be required to report the information of the target access point, such as the channel quality and the load situation, so that the subsequent network device can directly determine the target access point instead of Each time the offloading requires the terminal device to perform measurements, thereby reducing the measurement work of the terminal device. It may be necessary to perform, for example, determining an access point currently accessible by the "other terminal device" before determining the target access point, or the currently accessed access point then determining access near the currently accessed access point. point. Then, among these access points, the access point is selected as the target access point according to the status information returned by the previous terminal device.
  • the foregoing network device is an evolved base station, where the candidate access point includes an access point from a wireless local area network, and the first indication message uses a wireless resource. Control RRC signaling transmission.
  • the network device is not limited to an evolved base station, for example, a base station, a base station manager, etc.
  • the access point to be selected is not limited to an access point of a wireless local area network, and other access points are, for example,
  • the access point of the macro base station, the access point of the third generation communication system, and the like are all possible, and the optional signaling for transmitting the first indication message should not be limited to RRC signaling, and may be different according to different networks. Signaling transmission. Therefore, the above examples are not to be construed as limiting the invention.
  • the embodiment of the invention further provides a terminal device, as shown in FIG. 7, comprising:
  • the receiving unit 701 is configured to receive a first indication message from the network device, where the network device belongs to the first wireless network;
  • the detecting unit 702 is configured to: after the receiving unit 701 receives the first indication message, perform detection on the access point to obtain access point information;
  • the sending unit 703 is configured to send the access point information to the network device, where the access point information includes the to-be-selected access point, where the candidate access point belongs to the second wireless network;
  • the offloading control unit 704 is configured to offload the service of the foregoing network device to the target access point,
  • the target access point is an access point selected by the network device from the candidate access points.
  • the first indication message is used to indicate that the terminal device reports the access point information, and the first indication message may be broadcasted, or may be sent to some terminal devices in a directional manner, and the first indication message may be It is dedicated signaling, or it can be modified to add messages that are carried in existing signaling, such as extended fields.
  • the detection of the access point may be to detect all the access points that can be detected, or to detect the access points of some networks, and the obtained access points may be all access points that can be accessed. It may also be an access point that satisfies some preset conditions, such as satisfying a strong signal strength, a good channel quality, and the like.
  • the access point information may be an access point obtained by all the probes, or may be filtered in advance, for example, canceling an access point with a small signal strength, a poor channel quality, and a heavy load.
  • the screening rule can be arbitrarily set according to the principle of favorable splitting, and the embodiment of the present invention is not limited.
  • the offloaded service may be a data transmission service, such as a data transmission service.
  • the traffic distribution may be equal to the traffic, or may be non-uniform, and may be evenly distributed to the target access point, which is not limited in this embodiment of the present invention.
  • the network device sends an indication to the terminal device, and the terminal device reports the access point information, where the information of the access point is accurate and timely, and the network device can accurately determine the target access point that can be offloaded, thereby achieving optimization.
  • the network is offloaded, so that a more efficient offloading is implemented in the heterogeneous network, and the load balancing effect of the load balancing is improved.
  • the foregoing first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: media access control layer address information of the access point to be selected, access point type, channel quality information, load status information, and at least one of network identifiers .
  • the first indication message further includes: an access point identifier set to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and the candidate access point needs to be reported.
  • the offloading control unit 704 is configured to offload the service of the network device to the target access point, including:
  • the offloading control unit 704 is configured to establish a communication connection with the target access point according to the information of the target access point from the network device, and then offload the data flow related to the service of the terminal device to the target access point. .
  • the embodiment of the present invention further provides the following solution according to the information requirement of the network side: the foregoing terminal device further includes:
  • the receiving unit 701 is further configured to receive a second indication message from the network device.
  • the detecting unit 702 is further configured to: after the receiving unit 701 receives the second indication message, detect that the target access point obtains state information of the target access point;
  • the sending unit 703 is further configured to send the status information of the target access point to the network device.
  • the terminal device may also be required to report the information of the target access point, such as the channel quality and the load situation, so that the subsequent network device can directly determine the target access point instead of Each time the offloading requires the terminal device to perform measurements, thereby reducing the measurement work of the terminal device.
  • the network device is an evolved base station, and the candidate access point includes an access point from a wireless local area network; and the first indication message is sent by using radio resource control RRC signaling.
  • the embodiment of the present invention further provides another network device, as shown in FIG. 8, including: a receiving device 801, a sending device 802, a processor 803, and a storage device 804; the processor 804 can be used for storing related data, or Used for data buffering when the processor 803 performs an operation;
  • the sending device 802 is configured to send a first indication message to the terminal device, where the first indication message is used to indicate that the access point information is reported, and the network device belongs to the first wireless network;
  • the receiving device 801 is configured to receive the access point information returned by the terminal device, and the foregoing access
  • the point information includes a candidate access point, and the candidate access point belongs to the second wireless network;
  • the processor 803 is configured to select an access point from the to-be-selected access points as the target access point, and control to offload the service of the terminal device to the target access point.
  • the processor 803 is further configured to determine that load balancing needs to be performed according to a predetermined rule, and then select the terminal device.
  • the foregoing first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: media access control layer address information of the access point to be selected, access point type, channel quality information, load status information, and at least one of network identifiers .
  • the foregoing first indication message further includes: an access point identifier set to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and the medium access control of the to-be-selected access point needs to be reported. At least one of layer address information, access point type, channel quality information, load status information, and network label.
  • the sending device 802 is further configured to send the information about the target access point to the terminal device, to notify the terminal device to establish a communication connection with the target access point; and then the processor 803 is configured to control The data flow involved in the service of the terminal device is offloaded to the target access point.
  • the sending device 802 is further configured to: after the network device selects an access point from the candidate access point as the target access point, sends a second indication message to the terminal device, where the second indication message is used by the network device. State information indicating that the terminal device periodically returns to the target access point periodically or eventally;
  • the processor 803 is further configured to determine, if the other terminal device is selected, that load balancing is performed, and determine, according to the status information of the target access point, whether the target access point is to be selected as a candidate for the other terminal device. Entry point.
  • the network device is an evolved base station, and the candidate access point includes an access point from a wireless local area network; and the first indication message is sent by using radio resource control RRC signaling.
  • the embodiment of the present invention further provides another terminal device, as shown in FIG. 9, including: a receiving device 901, a sending device 902, a processor 903, and a storage device 904; the processor 904 can be used for storing related data, or Used for data buffering when the processor 803 performs an operation;
  • the receiving device 901 is configured to receive a first indication message from the network device, where the network device belongs to the first wireless network.
  • the processor 903 is configured to: after receiving the first indication message, perform detection on the access point to obtain access point information;
  • the sending device 902 is configured to send the access point information to the network device, where the access point information includes a candidate access point, and the candidate access point belongs to the second wireless network;
  • the processor 903 is configured to control to offload traffic of the network device to a target access point, where the target access point is an access point selected by the network device from the candidate access points.
  • the foregoing first indication message further includes:
  • Content indication information where the content indication information indicates that the content to be reported includes: media access control layer address information of the access point to be selected, access point type, channel quality information, load status information, and at least one of network identifiers .
  • the foregoing first indication message further includes: an access point identifier set to be detected, and the identifier of the to-be-selected access point is included in the access point identifier set, and the medium access control of the to-be-selected access point needs to be reported. At least one of layer address information, access point type, channel quality information, load status information, and network label.
  • the foregoing terminal device offloads the service of the foregoing network device to the target access point, including:
  • the terminal device receives information from the target access point of the network device, establishes a communication connection with the target access point, and then offloads the data stream related to the service of the terminal device to the target access point.
  • the receiving device 901 is further configured to receive a second indication message from the network device.
  • the processor 903 is further configured to: after detecting the second indication message, control to detect the target access point to obtain status information of the target access point;
  • the sending device 902 is further configured to send the status information of the target access point to the network device.
  • the network device is an evolved base station, and the candidate access point includes an access point from a wireless local area network; and the first indication message is sent by using radio resource control RRC signaling.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device 1000 may have a large difference due to different configurations or performances, and may include one or more central processing units (CPUs). 1022 (eg, one or more processors) and memory 1032, one or more storage media 1030 that store application 1042 or data 1044 (eg, one or one storage device in Shanghai).
  • the memory 1032 and the storage medium 1030 may be short-term storage or persistent storage.
  • the program stored on storage medium 1030 may include one or more modules (not shown), each of which may include a series of instruction operations in the server.
  • the central processor 1022 can be configured to communicate with the storage medium 1030 on which a series of instruction operations in the storage medium 1030 are performed.
  • Network device 1000 may also include one or more power sources 1026, one or more wired or wireless network interfaces 1050, one or more input and output interfaces 1058, and/or one or more operating systems 1041, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and more.
  • operating systems 1041 such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and more.
  • the steps performed by the network device in the above embodiments may be based on the server structure shown in FIG.
  • the embodiment of the present invention further provides another terminal device.
  • the terminal may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), an in-vehicle computer, and the terminal is a mobile phone as an example:
  • FIG. 11 is a block diagram showing a partial structure of a mobile phone related to a terminal provided by an embodiment of the present invention.
  • the mobile phone includes: a radio frequency (RF) circuit 1110 , a memory 1120 , an input unit 1130 , a display unit 1140 , a sensor 1150 , an audio circuit 1160 , a wireless fidelity (WiFi) module 1170 , and a processor 1180 .
  • RF radio frequency
  • the RF circuit 1110 can be used for receiving and transmitting signals during and after receiving or transmitting information, in particular, after receiving the downlink information of the base station, and processing it to the processor 1180; in addition, transmitting the designed uplink data to the base station.
  • RF circuit 1110 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
  • LNA Low Noise Amplifier
  • RF circuitry 1110 can also communicate with the network and other devices via wireless communication.
  • the above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), E-mail, Short Messaging Service (SMS), and the like.
  • GSM Global System of Mobile communication
  • GPRS General Packe
  • the memory 1120 can be used to store software programs and modules, and the processor 1180 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 1120.
  • the memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.).
  • memory 1120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the input unit 1130 can be configured to receive input digital or character information, and generate the same with the mobile phone The user settings as well as the function control related key signal input.
  • the input unit 1130 may include a touch panel 1131 and other input devices 1132.
  • the touch panel 1131 also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 1131 or near the touch panel 1131. Operation), and drive the corresponding connecting device according to a preset program.
  • the touch panel 1131 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 1180 is provided and can receive commands from the processor 1180 and execute them.
  • the touch panel 1131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 1130 may also include other input devices 1132.
  • other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 1140 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone.
  • the display unit 1140 may include a display panel 1141.
  • the display panel 1141 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the touch panel 1131 can cover the display panel 1141. After the touch panel 1131 detects a touch operation thereon or nearby, the touch panel 1131 transmits to the processor 1180 to determine the type of the touch event, and then the processor 1180 according to the touch event. The type provides a corresponding visual output on the display panel 1141.
  • the touch panel 1131 and the display panel 1141 are used as two independent components to implement the input and input functions of the mobile phone, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated. Realize the input and output functions of the phone.
  • the handset may also include at least one type of sensor 1150, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of the ambient light, and the proximity sensor may close the display panel 1141 and/or when the mobile phone moves to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity, which can be used to identify the attitude of the mobile phone.
  • An audio circuit 1160, a speaker 1161, and a microphone 1162 can provide an audio interface between the user and the handset.
  • the audio circuit 1160 can transmit the converted electrical data of the received audio data to the speaker 1161, and convert it into a sound signal output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signal into an electrical signal, and the audio circuit 1160 After receiving, it is converted into audio data, and then processed by the audio data output processor 1180, transmitted to the other mobile phone via the RF circuit 1110, or outputted to the memory 1120 for further processing.
  • WiFi is a short-range wireless transmission technology.
  • the mobile phone can help users to send and receive emails, browse web pages and access streaming media through the WiFi module 1170, which provides users with wireless broadband Internet access.
  • FIG. 11 shows the WiFi module 1170, it can be understood that it does not belong to the essential configuration of the mobile phone, and may be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 1180 is a control center for the handset, which connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 1120, and invoking data stored in the memory 1120, The phone's various functions and processing data, so that the overall monitoring of the phone.
  • the processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 1180.
  • the handset also includes a power source 1190 (such as a battery) that powers the various components.
  • a power source can be logically coupled to the processor 1180 via a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again.
  • the function of the processor 1180 included in the terminal may correspond to the function of the processor in the foregoing embodiment, and the functions of the receiving device and the sending device may correspond to RF circuit 1101 or WIFI module 1170.
  • each unit included is only divided according to functional logic, but is not limited to the foregoing division, as long as the corresponding function can be implemented;
  • the specific names of the units are also for convenience of distinguishing from each other and are not intended to limit the scope of the present invention.
  • the storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

L'invention concerne un procédé pour équilibrer la charge d'un réseau sans fil, un équipement de réseau et un équipement de terminal. À titre d'exemple, la mise en œuvre du procédé comprend les opérations suivantes : un équipement de réseau envoie un premier message d'indication à un équipement de terminal, le premier message d'indication étant utilisé pour indiquer de rapporter des informations de point d'accès, et l'équipement de réseau appartenant à un premier réseau sans fil ; l'équipement de réseau reçoit les informations de point d'accès renvoyées par l'équipement de terminal, les informations de point d'accès comprenant des points d'accès à sélectionner, et les points d'accès à sélectionner appartenant à un second réseau sans fil ; l'équipement de réseau sélectionne un point d'accès parmi les points d'accès à sélectionner comme point d'accès cible ; et l'équipement de réseau effectue un shuntage d'un service de l'équipement de terminal au niveau du point d'accès cible. L'équipement de réseau envoie une instruction à l'équipement de terminal, l'équipement de terminal rapporte des informations de point d'accès, les informations de point d'accès sont plus précises et opportunes, et l'équipement de réseau peut déterminer en conséquence et de manière précise un point d'accès cible qui peut être utilisé pour un shuntage, de telle sorte qu'un shuntage plus efficace est réalisé dans un réseau hétérogène, et un effet de shuntage pour équilibrer une charge est amélioré.
PCT/CN2016/104036 2015-11-06 2016-10-31 Procédé pour équilibrer la charge d'un réseau sans fil, équipement de réseau et équipement de terminal WO2017076255A1 (fr)

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CN113115383A (zh) * 2021-03-17 2021-07-13 深信服科技股份有限公司 一种信号管理方法、设备和计算机可读存储介质
WO2023283809A1 (fr) * 2021-07-13 2023-01-19 北京小米移动软件有限公司 Procédé et appareil de traitement de contrôle d'accès, dispositif de communication et support de stockage

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