WO2015042833A1 - 一种小区重选方法及设备 - Google Patents

一种小区重选方法及设备 Download PDF

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Publication number
WO2015042833A1
WO2015042833A1 PCT/CN2013/084333 CN2013084333W WO2015042833A1 WO 2015042833 A1 WO2015042833 A1 WO 2015042833A1 CN 2013084333 W CN2013084333 W CN 2013084333W WO 2015042833 A1 WO2015042833 A1 WO 2015042833A1
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WIPO (PCT)
Prior art keywords
user terminal
cell
threshold
information
activity
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PCT/CN2013/084333
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English (en)
French (fr)
Inventor
琚志强
周琳
张立文
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/084333 priority Critical patent/WO2015042833A1/zh
Priority to CN201380001794.7A priority patent/CN103650590B/zh
Publication of WO2015042833A1 publication Critical patent/WO2015042833A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/22Performing reselection for specific purposes for handling the traffic

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a cell reselection method and device. Background technique
  • the cell reselection method is to perform cell camping selection according to the measured RSRP (Reference Signal Receive Power), such as triggering cell reselection according to the RSRP threshold measured by the user terminal and selecting the RSRP signal quality.
  • RSRP Reference Signal Receive Power
  • the industry has proposed a cell reselection method that takes both network side load information and user terminal side RSRP information. For example, when the user terminal is in the connected state, the measurement report is reported to the network side, and the RAT (Radio Access Technology) neighbor cell frequency list and the RAT that are determined and delivered by the network side according to the measurement report are received.
  • the cell reselection information of the priority information or the frequency priority information when the user terminal performs the cell reselection, performs cell reselection according to the information such as the priority parameter obtained when the previous state is in the connected state.
  • the embodiment of the invention provides a cell reselection method and device, which solves the problem that the cell reselection effect in the prior art is not good.
  • a cell reselection method including:
  • the acquiring the service volume information of each user terminal in the small area includes:
  • the terminal identifier information of the user terminal includes at least an IMSI (International Mobile Subscriber Identification Number) ), P-TMSI (Packet Temperate Mobile Subscription Identity), S-TMSI (SAE Temporary Mobile Subscriber Identity), and IMEI (International Mobile Equipment Identity, International Mobile Equipment) One or more of the identity codes).
  • IMSI International Mobile Subscriber Identification Number
  • P-TMSI Packet Temperate Mobile Subscription Identity
  • S-TMSI SAE Temporary Mobile Subscriber Identity
  • IMEI International Mobile Equipment Identity, International Mobile Equipment
  • the traffic information of the user terminal determines the activity of each user terminal, including: For any user terminal, the activity of the user terminal is determined by the following formula:
  • Active ⁇ t ( ⁇ - a) x Active (t - 1) + ax record (t) .
  • ⁇ w(t) represents the current activity of the user terminal; "represents the activity fading factor, which takes (0, 1); r eCO W(t) represents the user terminal Current business volume.
  • the activity is not less than The set second threshold user terminal is redirected to other cells whose network load is not greater than the set first threshold, including:
  • the user terminal For any user terminal whose activity is not less than the set second threshold, when the user terminal is in an idle state, the user terminal is redirected to the user terminal by sending a pseudo paging message to Other cells whose network load is not greater than the set first threshold; or
  • a cell reselection device including:
  • a traffic acquisition module configured to acquire, according to any cell, traffic information of each user terminal in the cell
  • An activity determining module configured to determine, according to the traffic information of each user terminal acquired by the traffic volume obtaining module, the activity level of each user terminal;
  • a cell reselection execution module configured to: when determining that the network load of the cell is greater than a set first threshold, redirecting a user terminal whose activity is not less than the set second threshold to a network load is not greater than The other cells of the first threshold are set.
  • the traffic volume acquiring module is specifically configured to acquire terminal identifier information of the user terminal for any user terminal, and The MAC entity of the side obtains the user identified by the terminal identification information.
  • the uplink and downlink service information of the terminal, and the acquired uplink and downlink service information is used as the traffic volume information of the user terminal.
  • the terminal identifier information of the user terminal that is obtained by the traffic volume acquiring module includes at least an IMSI, a P- One or more of TMSI, S-TMSI, and IMEI.
  • the activity determining module Specifically, for any user terminal, determining the activity of the user terminal by using the following formula:
  • Active ⁇ t ( ⁇ - a) x Active (t - 1) + ax record (t) .
  • t is the current time in hours
  • ⁇ w(t) is the current activity of the user terminal
  • the activity fading factor has a value of (0, 1 );
  • r eCO W(t) represents the current traffic of the user terminal.
  • the cell reselection execution module Specifically, for any user terminal whose activity is not less than the set second threshold, when the user terminal is in an idle state, the user is sent by sending a pseudo paging message to the user terminal. The terminal is redirected to another cell whose network load is not greater than the set first threshold; or, when the user terminal is in an active state, sent according to the user terminal in the process of transitioning from the active state to the idle state The RRC connection release message redirects the user terminal to other cells whose network load is not greater than the set first threshold.
  • a cell reselection device including:
  • a collector configured to acquire traffic information of each user terminal in the cell for any cell
  • a processor configured to determine an activity level of each user terminal according to the service quantity information of each user terminal acquired by the collector, and when determining that the network load of the cell is greater than a set first threshold, Redirecting the user terminal whose activity is not less than the set second threshold to the network load is not greater than The other cells of the first threshold are set.
  • the collector is specifically configured to acquire terminal identifier information of the user terminal for any user terminal, and
  • the MAC entity obtains the uplink and downlink service information of the user terminal that is identified by the terminal identification information, and uses the obtained uplink and downlink service information as the service volume information of the user terminal.
  • the terminal identifier information of the user terminal that is acquired by the collector includes at least an IMSI, a P-TMSI One or more of S-TMSI and IMEI.
  • the activity of the user terminal is determined by the following formula:
  • Active ⁇ t ( ⁇ - a) x Active (t - 1) + ax record (t) .
  • t is the current time in hours
  • ⁇ w(t) is the current activity of the user terminal
  • the activity fading factor has a value of (0, 1 );
  • r eCO W(t) represents the current traffic of the user terminal.
  • the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect in a fourth possible implementation manner of the third aspect, For any user terminal whose activity is not less than the set second threshold, when the user terminal is in an idle state, the user terminal is redirected by sending a pseudo paging message to the user terminal. To other cells whose network load is not greater than the set first threshold; or
  • the user terminal When the user terminal is in an active state, according to the RRC connection release message sent by the user terminal in the process of transitioning from the active state to the idle state, the user terminal is redirected to a network load not greater than The other cells of the first threshold are set.
  • the cell reselection device provided by the second aspect or the third aspect comprehensively considers the load information and the user terminal on the network side when performing cell reselection in a heterogeneous network scenario.
  • Side traffic information specifically, historical business behavior through the user terminal Targeting the active user, and redirecting the user terminal in the cell whose activity is not less than the set second threshold to the network when determining that the network load of any cell is greater than the set first threshold.
  • the other cells whose load is not greater than the first threshold value are set, thereby avoiding the problem of blindly selecting the network load fluctuation caused by the user terminal to be redirected, and dynamically adjusting the bearer condition of different networks and reducing the congestion degree of the network.
  • the purpose of achieving coordinated utilization of resources improves the effect and execution efficiency of cell reselection.
  • FIG. 1 is a schematic flowchart of a cell reselection method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram of a user terminal moving in the same MME/SGSN range according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of the user terminal moving in the range of the MME/SGSN according to the first embodiment of the present invention
  • FIG. 4 is a schematic diagram of a user terminal moving in a range across a RAT according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic structural diagram of a cell reselection device according to Embodiment 2 of the present invention
  • FIG. 6 is a schematic structural diagram of a cell reselection device according to Embodiment 3 of the present invention. detailed description
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 1 it is a schematic flowchart of a cell reselection method according to Embodiment 1 of the present invention, where the cell reselection method is applicable to a heterogeneous wireless network environment including network types such as LTE, UMTS, or GSM.
  • the cell reselection method may include the following steps:
  • Step 101 Obtain traffic information of each user terminal in the cell for any cell.
  • the acquiring the service quantity information of each user terminal in the cell may include: acquiring, for any user terminal, terminal identification information of the user terminal, by monitoring a MAC entity on the network side, acquiring the The terminal identification information is the uplink and downlink service information of the identified user terminal, and the acquired uplink and downlink service information is used as the traffic volume information of the user terminal.
  • the terminal identifier information of the user terminal may include at least one of the IMSI, the P-TMSI, the S-TMSI, and the IMEI, and the information that can uniquely identify the user terminal, and the embodiment of the present invention does not perform any limited.
  • any one of the UMTS networks such as UTRAN (Universal Mobile Telecommunications System Terrestrial Radio Access Network) or E-UTRAN (Evolved UMTS Terrestrial Radio Access Network)
  • UTRAN Universal Mobile Telecommunications System Terrestrial Radio Access Network
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • the obtaining the service volume information of each user terminal in the cell may include:
  • the NAS layer (Non-Access Stratum) identification information and the AS layer (Access Stratum) identification information are obtained; specifically, the user terminal may be used for the first time.
  • the RRC Connection Setup Request message (the RRC connection setup request message) involved in the random access process is used to obtain the NAS layer identification information of the user terminal and the RRC involved in the first random access process by the user terminal.
  • the Connection Setu message (the RRC Connection Setup message, that is, the response message of the RRC Connection Setup Request message) is used to obtain the AS layer identification information of the user terminal allocated by the core network, which is not limited in this embodiment of the present invention;
  • the MAC entity may be a MAC-HS (Media Access Control High Speed Entity) or a MAC-EHS (Enhanced Medium Access Control High Speed Entity), in the embodiment of the present invention. There is no limit to this.
  • the NAS layer identification information of the user terminal includes information such as IMSI or P-TMSI or S-TMSI; the AS layer identification information of the user terminal includes a U-RNT UTRAN Radio Network Temporary Identifier, and the universal mobile communication system is terrestrial wirelessly connected. Information such as the incoming wireless network temporary identifier) or the C-RNTI (Cell Radio Network Temporary Identifier).
  • the NAS layer identifier information of the user terminal is an IMSI or a P-TMSI
  • the AS layer identifier information of the user terminal is a U-RNTI
  • the NAS layer identifier information of the user terminal is IMSI or S-TMSI
  • the AS layer identifier information of the user terminal is C-RNTI.
  • the IMSI is specified to be sent in plaintext only when the user terminal is powered on, and then the P-TMSI or S-TMSI is used instead, so
  • the network type corresponding to the cell is LTE or UMTS
  • the user terminals are generally uniquely identified by P-TMSI or S-TMSI.
  • the validity period of the identifier may be set to one day.
  • the P-TMSI or S-TMSI The validity period of the identifier can also be adjusted according to the actual situation, which is not limited by the embodiment of the present invention.
  • the user terminal may move in a certain range, such as in the same MME (Mobility Management Entity) / SGSN (Serving GRPS Support Node) Moving within the range, or moving across the MME/SGSN, or moving across the RAT, causes the NAS layer identifier and/or the AS layer identifier of the user terminal to change accordingly.
  • MME Mobility Management Entity
  • SGSN Serving GRPS Support Node
  • the NAS layer identifier and/or the AS layer identifier of the user terminal are re-acquired according to the actual situation, and the traffic information of the user terminal is obtained according to the NAS layer identifier and/or the AS layer identifier of the user terminal that is re-acquired, for example:
  • the user terminal is bound to the S-TMSI and the C-RNTI in the eNodeB1.
  • the S-TMSI of the user terminal does not change, and the C-RNTI needs to be re-allocated. Therefore, the user terminal needs to be re-allocated.
  • the S-TMSI is bound to the newly allocated C-RNTI. Therefore, when the user terminal traffic information is acquired, the MAC entity corresponding to the C-RNTI to which the user terminal is bound is monitored periodically or in real time.
  • the uplink and downlink service information of the user terminal so as to aggregate the total traffic information of the user terminal.
  • the TAU Tracking Area Update
  • the S-TMSI of the user terminal changes, and the user history traffic information record is recorded.
  • the traffic information of the user terminal needs to be re-acquired according to the new S-TMSI.
  • IRR Interle State Signaling Reduction
  • TAU/RAU Tracke Area Update
  • the function can be used to simultaneously register a user terminal in an idle state to a RA (Tracking Area) under the SGSN and a TA (Tracking Area) under the MME, so that when the user When the terminal moves within the RA and TA, RAU/TAU will not be initiated to reduce the signaling impact on the core network.
  • the TAU/RAU will not be executed when the user terminal moves across the RAT after the ISR is enabled, the S-TMSI or P-TMSI of the user terminal will not change, but the RNTI Re-allocation, the TMSI and the RNTI need to be re-bound; therefore, in this case, when the user terminal traffic information is acquired, it is necessary to periodically or real-time monitor the MAC entity corresponding to the RNTI to which the user terminal is bound.
  • the uplink and downlink service information of the user terminal so as to aggregate the total traffic information of the user terminal.
  • the traffic information of each user terminal may be stored in the form of a data table, where the data table is The information of the S-TMSI or the P-TMSI identifier of each user terminal, and the information such as the acquisition time of the traffic information may be included in the embodiment of the present invention.
  • the validity period of the traffic information of each user terminal can be set to one day.
  • Step 102 Determine the activity of each user terminal according to the acquired traffic information of each user terminal.
  • the activity of the user terminal may be determined by the following formula:
  • Active ⁇ t ( ⁇ - a) x Active (t - 1) + ax record (t) .
  • t is the current time, the unit is h (hours); Active(t) is the current activity of the user terminal; "Represents the activity fading factor, which takes (0,1); r eCO W(t) represents the current traffic of the user terminal.
  • the activity level of each user terminal may be stored in the form of a data table, where the data table may include each user.
  • the information of the S-TMSI or the P-TMSI identifier of the terminal is not limited in this embodiment of the present invention.
  • Step 103 When determining that the network load of the cell is greater than the set first threshold, redirecting the user terminal whose activity is not less than the set second threshold to the network load is not greater than the set first Other communities with wide value.
  • the network load of the cell is a network parameter used to measure a busy state of the cell.
  • the network load of the cell may be the current location of the cell. The number of user terminals that are loaded, or the RB (Resource Block) utilization of the cell, etc.; when the network type corresponding to the cell is UMTS, the network load of the cell may be the power resource and code of the cell. a resource, a transmission resource, or a CE (Channel Element) resource, etc.; when the network type corresponding to the cell is GSM, the network load of the cell may be a TCH (Traffic Channel) occupancy rate, etc.
  • TCH Traffic Channel occupancy rate
  • the network load information of each cell can be obtained by using real-time measurement or periodic measurement.
  • the user terminal whose activity is not less than the set second threshold is redirected to the network load.
  • Other cells whose amount is not greater than the set first threshold may include:
  • the user terminal may be heavy by sending a pseudo paging message to the user terminal. Oriented to other cells whose network load is not greater than the set first threshold; or
  • the user terminal When it is determined that the user terminal is in an active state, the user terminal may be configured according to an RRC connection release message (a RRC connection release message) sent by the user terminal in a process of transitioning from an active state to an idle state. Redirecting to another cell whose network load is not greater than the set first threshold; specifically, the user terminal may be redirected to the network according to a redirection IE message (redirect message) in the RRC connection release message Other cells whose load is not greater than the set first threshold.
  • RRC connection release message a RRC connection release message
  • the first threshold and the second threshold may be adjusted according to actual conditions, which is not limited in the embodiment of the present invention.
  • the user terminal with a higher activity level (the activity level is greater than the set second threshold value) is preferentially selected to perform the network redirection operation. And redirecting it to other cells with low network load (the network load is not greater than the set first threshold), thus improving user targeting during cell reselection, while reducing the current cell network load.
  • Embodiment 2 It does not reduce the service usage of the user terminal, avoids the problem of blindly selecting the network load fluctuation caused by the user terminal to be redirected, and dynamically adjusts the bearer situation of different networks, reduces the congestion degree of the network, and realizes the coordinated utilization of resources.
  • the purpose is to improve the effect and efficiency of cell reselection.
  • the second embodiment of the present invention provides a cell reselection device that can be used to implement the method shown in the first embodiment of the present invention.
  • FIG. 5 it is a schematic structural diagram of a cell reselection device according to the second embodiment of the present invention.
  • the cell reselection device may be a network side device such as a base station (such as a NodeB or an eNodeB), which is not limited in this embodiment of the present invention.
  • the cell reselection device may include a traffic volume obtaining module 11, an activity determining module 12, and a cell reselection executing module 13, where:
  • the traffic volume obtaining module 11 is configured to acquire traffic volume information of each user terminal in the cell for any cell.
  • the activity determining module 12 is configured to determine the activity level of each user terminal according to the service quantity information of each user terminal acquired by the traffic quantity obtaining module 11;
  • the cell reselection execution module 13 is configured to redirect, when the network load of the cell is greater than the set first threshold, the user terminal whose activity is not less than the set second threshold to the network load Other cells that are not larger than the set first threshold.
  • the traffic volume obtaining module 11 may be configured to acquire terminal identifier information of the user terminal for any user terminal, and obtain a user terminal that uses the terminal identifier information as an identifier by monitoring a MAC entity on the network side.
  • the uplink and downlink service information, and the acquired uplink and downlink service information is used as the traffic volume information of the user terminal.
  • the terminal identifier information of the user terminal may include at least one of the IMSI, the P-TMSI, the S-TMSI, and the IMEI, and the information that can uniquely identify the user terminal, and the embodiment of the present invention does not perform any limited.
  • the traffic quantity obtaining module 11 can be used to obtain the traffic information of each user terminal in the cell by using any of the UMTS network, such as the UTRAN or the E-UTRAN. :
  • the user may obtain the user by using an RRC Connection Setup Request message involved in the first random access process of the user terminal.
  • the NAS layer identification information of the terminal and the RRC Connection Setup message involved in the first random access process of the user terminal are used to obtain the AS layer identification information of the user terminal allocated by the core network, and the embodiment of the present invention does not do any Limited
  • the information may be a MAC-HS or a MAC-EHS, which is not limited in this embodiment of the present invention.
  • the NAS layer identifier information of the user terminal includes information such as IMSI or P-TMSI or S-TMSI; and the AS layer identifier information of the user terminal includes information such as a U-RNTI, or a C-RNTI.
  • the NAS layer identifier information of the user terminal is an IMSI or a P-TMSI
  • the AS layer identifier information of the user terminal is a U-RNTI
  • the NAS layer identifier information of the user terminal is IMSI or S-TMSI
  • the AS layer identifier information of the user terminal is C-RNTI.
  • the IMSI is specified to be sent in plaintext only when the user terminal is powered on, and then the P-TMSI or S-TMSI is used instead, so
  • the network type corresponding to the cell is LTE or UMTS
  • the user terminals are generally uniquely identified by P-TMSI or S-TMSI.
  • the P-TMSI or S-TMSI flag is only valid when the user terminal remains powered on (at After the user terminal is restarted, the core network will re-allocate the new P-TMSI or S-TMSI to the user terminal. Therefore, in the embodiment of the present invention, the P-TMSI or the S-TMSI is used as the user terminal in the NAS.
  • the validity period of the identifier may be set to one day.
  • the validity period of the P-TMSI or the S-TMSI identifier may be adjusted according to the actual situation, which is not limited in this embodiment of the present invention.
  • the activity determining module 12 is specifically configured to determine, for any user terminal, the activity of the user terminal by using the following formula:
  • Active ⁇ t ( ⁇ - a) x Active (t - 1) + ax record (t) .
  • t is the current time in hours
  • ⁇ w(t) is the current activity of the user terminal
  • the activity fading factor has a value of (0, 1 );
  • r eCO W(t) represents the current traffic of the user terminal.
  • the cell reselection execution module 13 is specifically configured to be used for any user terminal whose activity is not less than the set second threshold, and when the user terminal is in an idle state, by sending a pseudo to the user terminal. a manner of paging the message, redirecting the user terminal to another cell whose network load is not greater than the set first threshold; or
  • the user terminal When the user terminal is in an active state, according to the RRC connection release message sent by the user terminal in the process of transitioning from the active state to the idle state, the user terminal is redirected to a network load not greater than The other cells of the first threshold are set.
  • the network load of the cell is a network parameter for measuring a busy state of the cell.
  • the network load of the cell may be The number of user terminals currently loaded by the cell, or the RB utilization rate of the cell, etc.; when the network type corresponding to the cell is UMTS, the network load of the cell may be the power resource, code resource, and transmission of the cell. The resource or the CE resource, etc.; when the network type of the cell is GSM, the network load of the cell may be the TCH occupancy rate, etc., which is not limited in this embodiment of the present invention.
  • the cell reselection device may further include an information storage module 14, where: the information storage module 14 may be used to obtain the traffic information of each user terminal and Information such as the activity level of each user terminal is stored. Specifically, the information storage module 14 may use the data table to obtain the obtained traffic information of each user terminal and the determined activity of each user terminal. The information is stored, and the embodiment of the present invention does not limit this.
  • the validity period of the information of each user terminal and the activity of each user terminal can be set. For one day.
  • a second embodiment of the present invention provides a cell reselection device.
  • a cell reselection is performed by using the cell reselection device, a user with a higher activity level (the activity is greater than a set second threshold) may be preferentially selected.
  • the terminal performs network redirection operation and redirects it to other cells with low network load (the network load is not greater than the set first threshold), thereby improving user targeting during cell reselection, and reducing
  • the current cell network load does not reduce the service usage of the user terminal, and avoids the problem of blindly selecting the network load fluctuation caused by the user terminal to be redirected, and dynamically adjusts the bearer of different networks and reduces network congestion. And the purpose of achieving coordinated utilization of resources, improving the effect and efficiency of cell reselection.
  • Embodiment 3 Embodiment 3:
  • FIG. 6 is a schematic structural diagram of a cell reselection device according to Embodiment 3 of the present invention, where the cell reselection device according to Embodiment 3 of the present invention can be used to implement the embodiment shown in Embodiment 1 of the present invention.
  • the cell reselection device according to Embodiment 3 of the present invention can be used to implement the embodiment shown in Embodiment 1 of the present invention.
  • FIG. 6 is a schematic structural diagram of a cell reselection device according to Embodiment 3 of the present invention, where the cell reselection device according to Embodiment 3 of the present invention can be used to implement the embodiment shown in Embodiment 1 of the present invention.
  • the cell reselection device according to Embodiment 3 of the present invention can be used to implement the embodiment shown in Embodiment 1 of the present invention.
  • FIG. 6 is a schematic structural diagram of a cell reselection device according to Embodiment 3 of the present invention
  • the cell reselection device may be a network side device such as a base station (such as a NodeB or an eNodeB), which is not limited by the embodiment of the present invention.
  • the third embodiment of the present invention uses the cell reselection device as a base station.
  • FIG. 6 is a block diagram showing a partial configuration of a base station 20 related to Embodiment 3 of the present invention.
  • the base station 20 includes: a collector 21, a processor 22, and the like. It will be understood by those skilled in the art that the structure of the base station shown in FIG. 6 does not constitute a limitation to the base station, and may include more or less components than those illustrated, or combine some components, or different component arrangements. The embodiment of the present invention does not limit this.
  • the base station 20 may further include components such as a transceiver, a controller, and a power source (not shown).
  • the components of the base station 20 will be specifically described below with reference to FIG. 6:
  • the collector 21 can be configured to acquire traffic information of each user terminal in the cell for any cell.
  • the processor 22 is configured to determine, according to the traffic volume information of each user terminal that is obtained by the collector, the activity level of each user terminal, and determine that the network load of the cell is greater than a set first threshold. When the user terminal whose activity is not less than the set second threshold is redirected to another cell whose network load is not greater than the set first threshold.
  • the collector 21 may be configured to acquire terminal identifier information of the user terminal for any user terminal, and acquire a user terminal that is identified by the terminal identifier information by monitoring a MAC entity on the network side.
  • the uplink and downlink service information is used as the traffic information of the user terminal.
  • the terminal identifier information of the user terminal may include at least one of the IMSI, the P-TMSI, the S-TMSI, and the IMEI, and the information that can uniquely identify the user terminal, and the embodiment of the present invention does not perform any limited.
  • the snippet 21 can be used to obtain the traffic information of each user terminal in the cell by using any of the UMTS network, such as the UTRAN or the E-UTRAN.
  • the user may obtain the user by using an RRC Connection Setup Request message involved in the first random access process of the user terminal.
  • the NAS layer identification information of the terminal and the RRC Connection Setup message involved in the first random access process of the user terminal are used to obtain the AS layer identification information of the user terminal allocated by the core network, and the embodiment of the present invention does not do any Limited
  • the MAC entity may be a MAC-HS or a MAC-EHS, which is not limited in this embodiment of the present invention.
  • the NAS layer identifier information of the user terminal includes information such as IMSI or P-TMSI or S-TMSI; and the AS layer identifier information of the user terminal includes information such as a U-RNTI, or a C-RNTI.
  • the NAS layer identifier information of the user terminal is an IMSI or a P-TMSI
  • the AS layer identifier information of the user terminal is a U-RNTI
  • the NAS layer identifier information of the user terminal is IMSI or S-TMSI
  • the AS layer identifier information of the user terminal is C-RNTI.
  • the IMSI is specified to be sent in plaintext only when the user terminal is powered on, and then the P-TMSI or S-TMSI is used instead, so
  • the network type corresponding to the cell is LTE or UMTS
  • the user terminals are generally uniquely identified by P-TMSI or S-TMSI.
  • the validity period of the identifier may be set to one day.
  • the P-TMSI or S-TMSI The validity period of the identifier can also be adjusted according to the actual situation, which is not limited by the embodiment of the present invention.
  • processor 22 is specifically configured to determine, for any user terminal, the activity of the user terminal by using the following formula:
  • Active(t) (l - ) x Active (t - 1) + ax record (t) .
  • t is the current time in hours;
  • ⁇ w(t) indicates the current activity of the user terminal;
  • r eCO W(t) represents the current traffic of the user terminal.
  • the processor 22 may be further configured to use, for any user terminal whose activity level is not less than a set second threshold, when the user terminal is in an idle state, The user terminal is heavy by transmitting a pseudo paging message to the user terminal. Oriented to other cells whose network load is not greater than the set first threshold; or
  • the user terminal When the user terminal is in an active state, according to the RRC connection release message sent by the user terminal in the process of transitioning from the active state to the idle state, the user terminal is redirected to a network load not greater than The other cells of the first threshold are set.
  • the network load of the cell is a network parameter for measuring a busy state of the cell.
  • the network load of the cell may be The number of user terminals currently loaded by the cell, or the RB utilization rate of the cell, etc.; when the network type corresponding to the cell is UMTS, the network load of the cell may be the power resource, code resource, and transmission of the cell. The resource or the CE resource, etc.; when the network type of the cell is GSM, the network load of the cell may be the TCH occupancy rate, etc., which is not limited in this embodiment of the present invention.
  • the cell reselection device may further include a memory 23, where:
  • the memory 23 can be used to store information about the acquired traffic information of each user terminal and the determined activity of each user terminal. Specifically, the memory 33 can use the form of the data table to obtain the acquired The information of the traffic of the user terminal and the determined activity of each user terminal are stored, which is not limited in this embodiment of the present invention.
  • the validity period of the information of each user terminal and the activity of each user terminal can be set. For one day.
  • a third embodiment of the present invention provides a cell reselection device.
  • a cell reselection is performed by using the cell reselection device, a user with a higher activity level (the activity is greater than a set second threshold) may be preferentially selected.
  • the terminal performs network redirection operation and redirects it to other cells with low network load (the network load is not greater than the set first threshold), thereby improving user targeting during cell reselection, and reducing
  • the current cell network load does not reduce the service usage of the user terminal, and avoids the problem of blindly selecting the network load fluctuation caused by the user terminal to be redirected, and dynamically adjusts the bearer of different networks and reduces network congestion.
  • embodiments of the invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • a computer-usable storage medium including but not limited to disk storage, CD-ROM, optical storage, etc.
  • 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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Abstract

一种小区重选方法及设备,所述方法包括:针对任一小区,获取所述小区内的各用户终端的业务量信息;根据获取到的各用户终端的业务量信息,确定各用户终端的活跃度;在确定所述小区的网络负载量大于设定的第一阈值时,将活跃度不小于设定的第二阈值的用户终端重定向至网络负载量不大于设定的第一阈值的其他小区。在本发明所述技术方案中,由于在进行异构网络场景下的小区重选时,综合考虑了网络侧的负载信息和用户终端侧的业务量信息,从而避免了盲目选取需重定向的用户终端所导致的网络负载波动的问题,达到了动态调节不同网络的承载情况、降低网络的拥塞度以及实现资源的协调利用的目的,提高了小区重选的效果和执行效率。

Description

一种小区重选方法及设备 技术领域
本发明涉及无线通信技术领域, 尤其涉及一种小区重选方法及设备。 背景技术
在包括 LTE ( Long Term Evolution, 长期演进)、 UMTS ( Universal Mobile Telecommunications System, 通用移动通讯系统) 、 GSM ( Global System for Mobile Communication , 全球移动通信网络)等网络类型的异构无线网络环境 中, 常釆用的小区重选方法是根据测量得到的 RSRP ( Reference Signal Receive Power, 参考信号接收功率)进行小区驻留选择, 如根据用户终端测量得到的 RSRP门限值触发小区重选并选择 RSRP信号质量最优的小区进行驻留。
但是, 在釆用上述方法进行小区重选时, 由于通常仅涉及到了用户终端 侧的 RSRP信息、 无法获知网络侧的负载信息, 因而可能会造成大量处于空闲 态的用户终端都驻留在了相同系统下的相同小区, 使得小区重选的效果并不 佳, 降低后续业务的承载。
针对上述问题, 业界提出了兼顾网络侧负载信息以及用户终端侧 RSRP信 息的小区重选方法。 例如, 用户终端在处于连接态时, 向网络侧上报测量报 告, 并接收网络侧根据所述测量报告所确定并下发的包括 RAT ( Radio Access Technology , 无线接入技术)邻小区频率列表、 RAT优先级信息或频率优先 级信息的小区重选信息, 当用户终端进行小区重选时根据前一次处于连接态 状态时所获得的优先级参数等信息进行小区重选。
但是, 在上述方法中, 由于用户终端发起两次业务的时间间隔可能较长, 基于前一次连接态状态时所获取的网络侧信息进行本次空闲态状态时的小区 驻留选择时, 可能会存在时效性并不佳的问题; 并且, 由于在上述方法中, 将小区中所有处于连接态状态的用户终端等同视之, 无法针对特定用户终端 的 QoS ( Quality of Service, 服务质量) 需求调整其驻留策略, 因而同样也会 存在影响后续业务承载的问题, 使得小区重选的效果并不佳。 发明内容
本发明实施例提供了一种小区重选方法及设备, 以解决现有技术中存在 的小区重选效果并不佳的问题。
第一方面, 提供了一种小区重选方法, 包括:
针对任一小区, 获取所述小区内的各用户终端的业务量信息;
根据获取到的各用户终端的业务量信息, 确定各用户终端的活跃度; 在确定所述小区的网络负载量大于设定的第一阔值时, 将活跃度不小于 设定的第二阔值的用户终端重定向至网络负载量不大于设定的第一阔值的其 他小区。
结合第一方面, 在第一方面的第一种可能的实现方式中, 所述获取所述 小区内的各用户终端的业务量信息, 包括:
针对任一用户终端, 获取所述用户终端的终端标识信息;
通过监测网络侧的 MAC ( Media Access Control, 媒体接入控制) 实体, 获取以所述终端标识信息为标识的用户终端的上下行业务信息, 并将所获取 的上下行业务信息作为所述用户终端的业务量信息。
结合第一方面的第一种可能的实现方式, 在第一方面的第二种可能的实 现方式中, 所述用户终端的终端标识信息至少包括 IMSI ( International Mobile Subscriber Identification Number , 国际移动用户识别码)、 P-TMSI ( Packet Temperate Mobile Subscription Identity, 分组临时移动用户识别码)、 S-TMSI ( SAE Temporary Mobile Subscriber Identity, 系统架构演进临时移动用户识别 码)以及 IMEI ( International Mobile Equipment Identity, 国际移动设备身份码 ) 中的一种或多种。
结合第一方面、 第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式, 在第一方面的第三种可能的实现方式中, 所述根据获取到 的各用户终端的业务量信息, 确定各用户终端的活跃度, 包括: 针对任一用户终端, 通过以下公式确定所述用户终端的活跃度:
Active{t) = (\ - a) x Active (t - 1) + ax record (t) .
其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
结合第一方面、 第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式, 在第一方面的第四种可能的实现方式中, 所述将活跃度不 小于设定的第二阔值的用户终端重定向至网络负载量不大于设定的第一阔值 的其他小区, 包括:
针对任一活跃度不小于设定的第二阔值的用户终端, 当所述用户终端处 于空闲态时, 通过向所述用户终端发送伪寻呼消息的方式, 将所述用户终端 重定向至网络负载量不大于设定的第一阔值的其他小区; 或者,
当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的 RRC connection release (无线资源控制协议连接释放 ) 消息, 将所述用户终端重定向至网络负载量不大于设定的第一阔值的其他小 区。
第二方面, 提供了一种小区重选设备, 包括:
业务量获取模块, 用于针对任一小区, 获取所述小区内的各用户终端的 业务量信息;
活跃度确定模块, 用于根据所述业务量获取模块获取到的各用户终端的 业务量信息, 确定各用户终端的活跃度;
小区重选执行模块, 用于在确定所述小区的网络负载量大于设定的第一 阔值时, 将活跃度不小于设定的第二阔值的用户终端重定向至网络负载量不 大于设定的第一阔值的其他小区。
结合第二方面, 在第二方面的第一种可能的实现方式中, 所述业务量获 取模块, 具体用于针对任一用户终端, 获取所述用户终端的终端标识信息, 以及,通过监测网络侧的 MAC实体, 获取以所述终端标识信息为标识的用户 终端的上下行业务信息, 并将所获取的上下行业务信息作为所述用户终端的 业务量信息。
结合第二方面的第一种可能的实现方式, 在第二方面的第二种可能的实 现方式中, 所述业务量获取模块获取到的所述用户终端的终端标识信息至少 包括 IMSI、 P-TMSI、 S-TMSI以及 IMEI中的一种或多种。
结合第二方面、 第二方面的第一种可能的实现方式或第二方面的第二种 可能的实现方式, 在第二方面的第三种可能的实现方式中, 所述活跃度确定 模块, 具体用于针对任一用户终端, 通过以下公式确定所述用户终端的活跃 度:
Active{t) = (\ - a) x Active (t - 1) + ax record (t) . 其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
结合第二方面、 第二方面的第一种可能的实现方式或第二方面的第二种 可能的实现方式, 在第二方面的第四种可能的实现方式中, 所述小区重选执 行模块, 具体用于针对任一活跃度不小于设定的第二阔值的用户终端, 当所 述用户终端处于空闲态时, 通过向所述用户终端发送伪寻呼消息的方式, 将 所述用户终端重定向至网络负载量不大于设定的第一阔值的其他小区; 或者, 当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的无线资源控制协议连接释放消息, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区。
第三方面, 提供了一种小区重选设备, 包括:
釆集器, 用于针对任一小区, 获取所述小区内的各用户终端的业务量信 息;
处理器, 用于根据所述釆集器获取到的各用户终端的业务量信息, 确定 各用户终端的活跃度, 并在确定所述小区的网络负载量大于设定的第一阔值 时, 将活跃度不小于设定的第二阔值的用户终端重定向至网络负载量不大于 设定的第一阔值的其他小区。
结合第三方面, 在第三方面的第一种可能的实现方式中, 所述釆集器, 具体用于针对任一用户终端, 获取所述用户终端的终端标识信息, 以及, 通 过监测网络侧的 MAC实体,获取以所述终端标识信息为标识的用户终端的上 下行业务信息, 并将所获取的上下行业务信息作为所述用户终端的业务量信 息。
结合第三方面的第一种可能的实现方式, 在第三方面的第二种可能的实 现方式中,所述釆集器获取到的所述用户终端的终端标识信息至少包括 IMSI、 P-TMSI、 S-TMSI以及 IMEI中的一种或多种。
结合第三方面、 第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式, 在第三方面的第三种可能的实现方式中, 所述处理器, 具 体用于针对任一用户终端, 通过以下公式确定所述用户终端的活跃度:
Active{t) = (\ - a) x Active (t - 1) + ax record (t) . 其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
结合第三方面、 第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式, 在第三方面的第四种可能的实现方式中, 所述处理器, 具 体用于针对任一活跃度不小于设定的第二阔值的用户终端, 当所述用户终端 处于空闲态时, 通过向所述用户终端发送伪寻呼消息的方式, 将所述用户终 端重定向至网络负载量不大于设定的第一阔值的其他小区; 或者,
当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的无线资源控制协议连接释放消息, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区。
根据第一方面提供的小区重选方法, 第二方面或第三方面提供的小区重 选设备, 由于在进行异构网络场景下的小区重选时, 综合考虑了网络侧的负 载信息和用户终端侧的业务量信息, 具体地, 通过用户终端的历史业务行为 针对性重定向活跃用户, 并在确定任一小区的网络负载量大于设定的第一阔 值时, 将活跃度不小于设定的第二阔值的该小区内的用户终端重定向至网络 负载量不大于设定的第一阔值的其他小区, 从而避免了盲目选取需重定向的 用户终端所导致的网络负载波动的问题, 达到了动态调节不同网络的承载情 况、 降低网络的拥塞度以及实现资源的协调利用的目的, 提高了小区重选的 效果和执行效率。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中 所需要使用的附图作简要介绍, 显而易见地, 下面描述中的附图仅仅是本发 明的一些实施例, 对于本领域的普通技术人员来讲, 在不付出创造性劳动的 前提下, 还可以根据这些附图获得其他的附图。
图 1所示为本发明实施例一中所述小区重选方法的流程示意图; 图 2所示为本发明实施例一中所述用户终端在同一 MME/SGSN范围内移 动时的示意图;
图 3所示为本发明实施例一中所述用户终端跨 MME/SGSN范围内移动时 的示意图;
图 4所示为本发明实施例一中所述用户终端跨 RAT范围内移动时的示意 图;
图 5所示为本发明实施例二中所述小区重选设备的结构示意图; 图 6所示为本发明实施例三中所述小区重选设备的结构示意图。 具体实施方式
为了使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本 发明作进一步地详细描述, 显然, 所描述的实施例仅仅是本发明一部分实施 例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在 没有做出创造性劳动前提下所获得的所有其它实施例, 都属于本发明保护的 范围。
实施例一:
如图 1 所示, 其为本发明实施例一中所述小区重选方法的流程示意图, 所述小区重选方法可适用于包括 LTE、 UMTS或 GSM等网络类型的异构无线 网络环境中。 具体地, 所述小区重选方法可以包括以下步骤:
步骤 101 : 针对任一小区, 获取所述小区内的各用户终端的业务量信息。 具体地, 所述获取所述小区内的各用户终端的业务量信息, 可以包括: 针对任一用户终端, 获取所述用户终端的终端标识信息, 通过监测网络 侧的 MAC实体,获取以所述终端标识信息为标识的用户终端的上下行业务信 息, 并将所获取的上下行业务信息作为所述用户终端的业务量信息。
其中,所述用户终端的终端标识信息至少可以包括 IMSI、P-TMSI、 S-TMSI 以及 IMEI等能够唯一标识所述用户终端的信息中的一种或多种,本发明实施 例对此不作任何限定。
进一步地, 以位于 UMTS 网络, 如 UTRAN ( Universal Mobile Telecommunications System Terrestrial Radio Access Network, UMTS 陆地无线 接入网 )或 E-UTRAN (演进的 UMTS陆地无线接入网 ) 中的任一'〗、区为例, 所述获取所述小区内的各用户终端的业务量信息, 可以包括:
针对任一用户终端, 获取所述用户终端的 NAS层 ( Non Access Stratum, 非接入层)标识信息以及 AS层 (Access Stratum, 接入层)标识信息; 具体 地, 可以通过所述用户终端首次随机接入过程中涉及到的 RRC Connection Setup Request消息 (无线资源控制协议连接建立请求消息)来获取所述用户 终端的 NAS层标识信息以及通过所述用户终端首次随机接入过程中涉及到的 RRC Connection Setu 消息 (无线资源控制协议连接建立消息, 即 RRC Connection Setup Request消息的响应消息)来获取核心网所分配的所述用户终 端的 AS层标识信息, 本发明实施例对此不作任何限定;
通过监测以所述 AS层标识信息为标识的 MAC实体, 获取以所述 NAS 层标识信息为标识的用户终端的上下行业务信息, 并将所获取的上下行业务 信息作为所述用户终端的业务量信息; 具体地, 所述 MAC 实体可以为 MAC-HS (媒体接入控制高速实体 )或 MAC-EHS (增强的媒体接入控制高速 实体), 本发明实施例对此不作任何限定。
其中, 所述用户终端的 NAS层标识信息包括 IMSI或 P-TMSI或 S-TMSI 等信息;所述用户终端的 AS层标识信息包括 U-RNT UTRAN Radio Network Temporary Identifier, 通用移动通讯系统陆地无线接入网无线网络临时标识)、 或 C-RNTI ( Cell Radio Network Temporary Identifier, 小区无线网络临时标识) 等信息。
具体地, 当所述小区所对应的网络类型为 UTRAN 时, 所述用户终端的 NAS 层标识信息为 IMSI 或 P-TMSI, 所述用户终端的 AS 层标识信息为 U-RNTI;当所述小区所对应的网络类型为 E-UTRAN时,所述用户终端的 NAS 层标识信息为 IMSI或 S-TMSI, 所述用户终端的 AS层标识信息为 C-RNTI。
需要说明的是, 由于在 LTE/UMTS系统中,考虑到用户终端的 IMSI的安 全性, 规定 IMSI仅在用户终端开机附着时明文发送, 后续均使用 P-TMSI或 S-TMSI代替, 因此, 在本发明所述实施例中, 当所述小区对应的网络类型为 LTE或 UMTS等时 , 通常以 P-TMSI或 S-TMSI来唯一标识各用户终端。
再有,由于 P-TMSI或 S-TMSI标识仅在用户终端保持开机状态时有效(在 用户终端重启后, 核心网将重新为该用户终端分配新的 P-TMSI或 S-TMSI ), 因此,在本发明所述实施例中,在以 P-TMSI或 S-TMSI作为用户终端在 NAS 层的标识时, 可将所述标识的有效期设置为一天, 当然, 所述 P-TMSI 或 S-TMSI标识的有效期还可以根据实际情况进行调整, 本发明实施例对此不作 任何限定。
进一步地, 在本发明所述实施例中, 由于用户终端可能会在一定的范围 移动, 如在同一 MME ( Mobility Management Entity, 移动性管理实体 ) /SGSN ( Serving GRPS Support Node , GPRS 服务支持节点) 范围内移动, 或跨 MME/SGSN范围内移动, 或跨 RAT移动等, 导致用户终端的 NAS层标识和 / 或 AS层标识发生相应的变化,因此,在进行用户终端的业务量信息的获取时, 需要根据实际情况重新获取用户终端的 NAS层标识和 /或 AS层标识, 并根据 之前以及重新获取的用户终端的 NAS层标识和 /或 AS层标识获取用户终端的 业务量信息, 例如:
( 1 )、 当用户终端在同一 MME/SGSN范围内移动时, 具体地, 如图 2所 示, 当用户终端从同一 MME1内的 eNodeBl移动到 eNodeB2时:
在此情况下, 用户终端在 eNodeBl中绑定了 S-TMSI及 C-RNTI, 当用户 终端移动到 eNodeB2后,用户终端的 S-TMSI不变, C-RNTI需重分配, 因此, 需重新进行 S-TMSI与新分配的 C-RNTI的绑定, 因此, 在进行用户终端业务 量信息的获取时,需周期性或实时地监测用户终端所绑定的 C-RNTI所对应的 MAC实体中该用户终端的上下行业务信息, 以便汇总形成该用户终端的总的 业务量信息。
( 2 )、 当用户终端跨 MME/SGSN范围内移动时, 具体地, 如图 3所示, 当用户终端从 MME1下的 eNodeB2移动到 MME2下的 eNodeB3时:
在此情况下, 由于当用户终端移动到 eNodeB3时, 需执行 TAU ( Tracking Area Update, 跟踪区更新)操作, 且执行 TAU操作后, 用户终端的 S-TMSI 会发生改变,用户历史业务量信息记录失效,因此,当用户终端移动到 eNodeB3 时, 需根据新的 S-TMSI重新获取用户终端的业务量信息。
( 3 )、 当用户终端跨 RAT范围内移动时, 具体地, 如图 4所示, 当用户 终端从 MME1下的 eNodeBl移动到 SGSN下的 NodeB时:
在此情况下, 为了避免 idle 态 (空闲态)用户跨 RAT移动时所导致的 TAU/RAU ( Route Area Update,路由区更新)频繁更新,可引入 ISR ( Idle State Signaling Reduction , 空闲态信令消减) 功能, 即可将一个 idle状态下的用户 终端同时注册到 SGSN下的某一个 RA ( Route Area, 路由区)和 MME下的 某一个 TA ( Tracking Area, 跟踪区 ), 这样, 当所述用户终端在所述 RA和 TA 内移动时, 将不用发起 RAU/TAU, 以减少对核心网的信令冲击。
进一步地, 由于当开启 ISR后, 用户终端跨 RAT范围内移动时将不执行 TAU/RAU, 因此, 用户终端的 S-TMSI或 P-TMSI将不发生改变, 但 RNTI 需重新分配, TMSI与 RNTI需重新进行绑定; 因此, 此时, 在进行用户终端 业务量信息的获取时,需周期性或实时地监测用户终端所绑定的 RNTI所对应 的 MAC实体中该用户终端的上下行业务信息,以便汇总形成该用户终端的总 的业务量信息。
需要说明的是, 在本发明所述实施例中, 在获取各用户终端的业务量信 息之后, 可釆用数据表的形式对各用户终端的业务量信息进行存储, 其中, 所述数据表中可包括各用户终端的 S-TMSI或 P-TMSI标识等信息以及业务量 信息的获取时间等信息, 本发明实施例对此不作任何限定。
另外需要说明的是, 为了最大限度的减少数据的存储量, 与 P-TMSI 或 S-TMSI所具备的有效期类似, 各用户终端的业务量信息的有效期通常可设置 为一天。
步骤 102: 根据获取到的各用户终端的业务量信息, 确定各用户终端的活 跃度。
具体地, 在本发明所述实施例中, 针对任一用户终端, 可通过以下公式 来确定所述用户终端的活跃度:
Active{t) = (\ - a) x Active (t - 1) + ax record (t) . 其中, t表示当前时间, 单位为 h (小时); Active(t)表示用户终端的当前 活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当 前业务量。
进一步地, 在本发明所述实施例中, 在确定各用户终端的活跃度后, 可 釆用数据表的形式将各用户终端的活跃度进行存储, 其中, 所述数据表中可 包括各用户终端的 S-TMSI或 P-TMSI标识等信息, 本发明实施例对此不作任 何限定。
需要说明的是, 为了最大限度的减少数据的存储量, 与 P-TMSI/S-TMSI 或用户终端的业务量信息表所具备的有效期类似, 各用户终端的活跃度信息 的有效期通常可设置为一天。 步骤 103: 在确定所述小区的网络负载量大于设定的第一阔值时, 将活跃 度不小于设定的第二阔值的用户终端重定向至网络负载量不大于设定的第一 阔值的其他小区。
具体地, 所述小区的网络负载量为用于衡量小区的忙闲状态的网络参数, 如当所述小区对应的网络类型为 LTE时, 所述小区的网络负载量可为所述小 区当前所负载的用户终端数量、 或小区的 RB ( Resource Block, 资源块)利 用率等; 当所述小区对应的网络类型为 UMTS时, 所述小区的网络负载量可 为所述小区的功率资源、 码资源、 传输资源或 CE ( Channel Element, 信道单 元)资源等; 当所述小区对应的网络类型为 GSM时, 所述小区的网络负载量 可为 TCH ( Traffic Channel, 业务信道) 占用率等, 本发明实施例对此不作任 何限定。
具体地, 在本发明所述实施例中, 通常可釆用实时测量或周期性测量的 方式获取各小区的网络负载量信息。
进一步地, 在本发明所述实施例中, 在确定当前小区的网络负载量大于 设定的第一阔值时, 将活跃度不小于设定的第二阔值的用户终端重定向至网 络负载量不大于设定的第一阔值的其他小区, 可以包括:
针对任一活跃度不小于设定的第二阔值的用户终端, 当确定所述用户终 端处于空闲态时, 可通过向所述用户终端发送伪寻呼消息的方式, 将所述用 户终端重定向至网络负载量不大于设定的第一阔值的其他小区; 或者,
当确定所述用户终端处于激活态时, 可根据所述用户终端在从激活态转 变为空闲态的过程中所发送的 RRC connection release消息 (无线资源控制协 议连接释放消息 ), 将所述用户终端重定向至网络负载量不大于设定的第一阔 值的其他小区;具体地,可根据所述 RRC connection release消息中的 redirection IE消息(重定向消息), 将所述用户终端重定向至网络负载量不大于设定的第 一阔值的其他小区。
需要说明的是, 所述第一阔值以及所述第二阔值可以根据实际情况调整 设定, 本发明实施例对此不作任何限定。 在本发明实施例一所述的小区重选方法中, 由于在进行小区重选时, 优 先选择活跃度较高 (活跃度大于设定的第二阔值) 的用户终端进行网络重定 向操作, 并将其重定向至网络负载量较低(网络负载量不大于设定的第一阔 值) 的其他小区, 因而可提高小区重选时的用户针对性, 在降低当前小区网 络负载量的同时并不会降低用户终端的业务使用, 避免了盲目选取需重定向 的用户终端所导致的网络负载波动的问题, 达到了动态调节不同网络的承载 情况、 降低网络的拥塞度以及实现资源的协调利用的目的, 提高了小区重选 的效果和执行效率。 实施例二:
本发明实施例二提供了一种可用于实现本发明实施例一所示方法的小区 重选设备, 如图 5 所示, 其为本发明实施例二中所述小区重选设备的结构示 意图, 其中, 所述小区重选设备可为基站(如 NodeB或 eNodeB )等网络侧设 备, 本发明实施例对此不作任何限定。
具体地, 所述小区重选设备可以包括业务量获取模块 11、 活跃度确定模 块 12以及小区重选执行模块 13 , 其中:
所述业务量获取模块 11用于针对任一小区, 获取所述小区内的各用户终 端的业务量信息;
所述活跃度确定模块 12用于根据所述业务量获取模块 11获取到的各用 户终端的业务量信息, 确定各用户终端的活跃度;
所述小区重选执行模块 13用于在确定所述小区的网络负载量大于设定的 第一阔值时, 将活跃度不小于设定的第二阔值的用户终端重定向至网络负载 量不大于设定的第一阔值的其他小区。
具体地, 所述业务量获取模块 11可用于针对任一用户终端, 获取所述用 户终端的终端标识信息, 以及, 通过监测网络侧的 MAC实体, 获取以所述终 端标识信息为标识的用户终端的上下行业务信息, 并将所获取的上下行业务 信息作为所述用户终端的业务量信息。 其中,所述用户终端的终端标识信息至少可以包括 IMSI、P-TMSI、 S-TMSI 以及 IMEI等能够唯一标识所述用户终端的信息中的一种或多种,本发明实施 例对此不作任何限定。
进一步地, 以位于 UMTS网络, 如 UTRAN或 E-UTRAN中的任一'〗、区 为例, 所述业务量获取模块 11可用于通过以下方式获取所述小区内的各用户 终端的业务量信息:
针对任一用户终端, 获取所述用户终端的 NAS层标识信息以及 AS层标 识信息; 具体地, 可以通过所述用户终端首次随机接入过程中涉及到的 RRC Connection Setup Request消息来获取所述用户终端的 NAS层标识信息以及通 过所述用户终端首次随机接入过程中涉及到的 RRC Connection Setup消息来 获取核心网所分配的所述用户终端的 AS层标识信息,本发明实施例对此不作 任何限定;
通过监测以所述 AS层标识信息为标识的 MAC实体, 获取以所述 NAS 层标识信息为标识的用户终端的上下行业务信息, 并将所获取的上下行业务 信息作为所述用户终端的业务量信息; 具体地, 所述 MAC 实体可以为 MAC-HS或 MAC-EHS, 本发明实施例对此不作任何限定。
其中, 所述用户终端的 NAS层标识信息包括 IMSI或 P-TMSI或 S-TMSI 等信息; 所述用户终端的 AS层标识信息包括 U-RNTI、 或 C-RNTI等信息。
具体地, 当所述小区所对应的网络类型为 UTRAN 时, 所述用户终端的 NAS 层标识信息为 IMSI 或 P-TMSI, 所述用户终端的 AS 层标识信息为 U-RNTI;当所述小区所对应的网络类型为 E-UTRAN时,所述用户终端的 NAS 层标识信息为 IMSI或 S-TMSI, 所述用户终端的 AS层标识信息为 C-RNTI。
需要说明的是, 由于在 LTE/UMTS系统中,考虑到用户终端的 IMSI的安 全性, 规定 IMSI仅在用户终端开机附着时明文发送, 后续均使用 P-TMSI或 S-TMSI代替, 因此, 在本发明所述实施例中, 当所述小区对应的网络类型为 LTE或 UMTS等时 , 通常以 P-TMSI或 S-TMSI来唯一标识各用户终端。
再有,由于 P-TMSI或 S-TMSI标识仅在用户终端保持开机状态时有效(在 用户终端重启后, 核心网将重新为该用户终端分配新的 P-TMSI或 S-TMSI ), 因此,在本发明所述实施例中,在以 P-TMSI或 S-TMSI作为用户终端在 NAS 层的标识时, 可将所述标识的有效期设置为一天, 当然, 所述 P-TMSI 或 S-TMSI标识的有效期还可以根据实际情况进行调整, 本发明实施例对此不作 任何限定。
进一步地, 所述活跃度确定模块 12具体可用于针对任一用户终端, 通过 以下公式确定所述用户终端的活跃度:
Active{t) = (\ - a) x Active (t - 1) + ax record (t) . 其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
进一步地, 所述小区重选执行模块 13具体可用于针对任一活跃度不小于 设定的第二阔值的用户终端, 当所述用户终端处于空闲态时, 通过向所述用 户终端发送伪寻呼消息的方式, 将所述用户终端重定向至网络负载量不大于 设定的第一阔值的其他小区; 或者,
当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的无线资源控制协议连接释放消息, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区。
其中, 针对任一小区, 所述小区的网络负载量为用于衡量小区的忙闲状 态的网络参数, 如当所述小区对应的网络类型为 LTE时, 所述小区的网络负 载量可为所述小区当前所负载的用户终端数量、或小区的 RB利用率等; 当所 述小区对应的网络类型为 UMTS时, 所述小区的网络负载量可为所述小区的 功率资源、 码资源、 传输资源或 CE 资源等; 当所述小区对应的网络类型为 GSM时, 所述小区的网络负载量可为 TCH 占用率等, 本发明实施例对此不 作任何限定。
进一步地, 所述小区重选设备还可以包括信息存储模块 14, 其中: 所述信息存储模块 14可用于对获取到的各用户终端的业务量信息以及确 定的各用户终端的活跃度等信息进行存储; 具体地, 所述信息存储模块 14可 釆用数据表的形式对获取到的各用户终端的业务量信息以及确定的各用户终 端的活跃度等信息进行存储, 本发明实施例对此不作任何限定。
需要说明的是, 为了较大程度减少数据的存储量, 与 P-TMSI/S-TMSI所 具备的有效期类似, 各用户终端的业务量信息以及各用户终端的活跃度等信 息的有效期通常可设置为一天。
本发明实施例二提供了一种小区重选设备, 由于在利用所述小区重选设 备进行小区重选时, 可优先选择活跃度较高 (活跃度大于设定的第二阔值) 的用户终端进行网络重定向操作, 并将其重定向至网络负载量较低(网络负 载量不大于设定的第一阔值) 的其他小区, 因而可提高小区重选时的用户针 对性, 在降低当前小区网络负载量的同时并不会降低用户终端的业务使用, 避免了盲目选取需重定向的用户终端所导致的网络负载波动的问题, 达到了 动态调节不同网络的承载情况、 降低网络的拥塞度以及实现资源的协调利用 的目的, 提高了小区重选的效果和执行效率。 实施例三:
如图 6所示, 其为本发明实施例三中所述小区重选设备的结构示意图, 其中, 本发明实施例三中所述的小区重选设备可用于实施本发明实施例一所 示的方法, 为了便于说明, 仅示出了与本发明实施例三相关的部分, 具体技 术细节未揭示的, 请参照图 1等所示的本发明各实施例。
具体地, 所述小区重选设备可以为基站(如 NodeB或 eNodeB )等网络侧 设备, 本发明实施例对此不作任何限定; 具体地, 本发明实施例三以所述小 区重选设备为基站为例进行说明, 图 6 示出的是与本发明实施例三相关的基 站 20的部分结构的框图。
如图 6所示, 所述基站 20包括: 釆集器 21以及处理器 22等部件。 本领 域技术人员可以理解, 图 6 中示出的基站结构并不构成对基站的限定, 可以 包括比图示更多或更少的部件, 或者组合某些部件, 或者不同的部件布置, 本发明实施例对此不作任何限定。 例如: 所述基站 20还可以包括收发器、 控 制器以及电源 (图中未示出)等部件。
下面结合图 6对所述基站 20的各个构成部件进行具体的介绍:
所述釆集器 21可用于针对任一小区, 获取所述小区内的各用户终端的业 务量信息;
所述处理器 22 可用于根据所述釆集器获取到的各用户终端的业务量信 息, 确定各用户终端的活跃度, 并在确定所述小区的网络负载量大于设定的 第一阔值时, 将活跃度不小于设定的第二阔值的用户终端重定向至网络负载 量不大于设定的第一阔值的其他小区。
具体地, 所述釆集器 21可用于针对任一用户终端, 获取所述用户终端的 终端标识信息, 以及, 通过监测网络侧的 MAC实体, 获取以所述终端标识信 息为标识的用户终端的上下行业务信息, 并将所获取的上下行业务信息作为 所述用户终端的业务量信息。
其中,所述用户终端的终端标识信息至少可以包括 IMSI、P-TMSI、 S-TMSI 以及 IMEI等能够唯一标识所述用户终端的信息中的一种或多种,本发明实施 例对此不作任何限定。
进一步地, 以位于 UMTS网络, 如 UTRAN或 E-UTRAN中的任一'〗、区 为例, 所述釆集器 21可用于通过以下方式获取所述小区内的各用户终端的业 务量信息:
针对任一用户终端, 获取所述用户终端的 NAS层标识信息以及 AS层标 识信息; 具体地, 可以通过所述用户终端首次随机接入过程中涉及到的 RRC Connection Setup Request消息来获取所述用户终端的 NAS层标识信息以及通 过所述用户终端首次随机接入过程中涉及到的 RRC Connection Setup消息来 获取核心网所分配的所述用户终端的 AS层标识信息,本发明实施例对此不作 任何限定;
通过监测以所述 AS层标识信息为标识的 MAC实体, 获取以所述 NAS 层标识信息为标识的用户终端的上下行业务信息, 并将所获取的上下行业务 信息作为所述用户终端的业务量信息; 具体地, 所述 MAC 实体可以为 MAC-HS或 MAC-EHS, 本发明实施例对此不作任何限定。
其中, 所述用户终端的 NAS层标识信息包括 IMSI或 P-TMSI或 S-TMSI 等信息; 所述用户终端的 AS层标识信息包括 U-RNTI、 或 C-RNTI等信息。
具体地, 当所述小区所对应的网络类型为 UTRAN 时, 所述用户终端的 NAS 层标识信息为 IMSI 或 P-TMSI, 所述用户终端的 AS 层标识信息为 U-RNTI;当所述小区所对应的网络类型为 E-UTRAN时,所述用户终端的 NAS 层标识信息为 IMSI或 S-TMSI, 所述用户终端的 AS层标识信息为 C-RNTI。
需要说明的是, 由于在 LTE/UMTS系统中,考虑到用户终端的 IMSI的安 全性, 规定 IMSI仅在用户终端开机附着时明文发送, 后续均使用 P-TMSI或 S-TMSI代替, 因此, 在本发明所述实施例中, 当所述小区对应的网络类型为 LTE或 UMTS等时 , 通常以 P-TMSI或 S-TMSI来唯一标识各用户终端。
再有,由于 P-TMSI或 S-TMSI标识仅在用户终端保持开机状态时有效(在 用户终端重启后, 核心网将重新为该用户终端分配新的 P-TMSI或 S-TMSI ), 因此,在本发明所述实施例中,在以 P-TMSI或 S-TMSI作为用户终端在 NAS 层的标识时, 可将所述标识的有效期设置为一天, 当然, 所述 P-TMSI 或 S-TMSI标识的有效期还可以根据实际情况进行调整, 本发明实施例对此不作 任何限定。
进一步地, 所述处理器 22具体可用于针对任一用户终端, 通过以下公式 确定所述用户终端的活跃度:
Active(t) = (l - ) x Active (t - 1) + ax record (t) . 其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
进一步地, 在确定各用户终端的活跃度之后, 所述处理器 22具体还可用 于针对任一活跃度不小于设定的第二阔值的用户终端, 当所述用户终端处于 空闲态时, 通过向所述用户终端发送伪寻呼消息的方式, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区; 或者,
当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的无线资源控制协议连接释放消息, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区。
其中, 针对任一小区, 所述小区的网络负载量为用于衡量小区的忙闲状 态的网络参数, 如当所述小区对应的网络类型为 LTE时, 所述小区的网络负 载量可为所述小区当前所负载的用户终端数量、或小区的 RB利用率等; 当所 述小区对应的网络类型为 UMTS时, 所述小区的网络负载量可为所述小区的 功率资源、 码资源、 传输资源或 CE 资源等; 当所述小区对应的网络类型为 GSM时, 所述小区的网络负载量可为 TCH 占用率等, 本发明实施例对此不 作任何限定。
进一步地, 所述小区重选设备还可以包括存储器 23 , 其中:
所述存储器 23可用于对获取到的各用户终端的业务量信息以及确定的各 用户终端的活跃度等信息进行存储; 具体地, 所述存储器 33可釆用数据表的 形式对获取到的各用户终端的业务量信息以及确定的各用户终端的活跃度等 信息进行存储, 本发明实施例对此不作任何限定。
需要说明的是, 为了较大程度减少数据的存储量, 与 P-TMSI/S-TMSI所 具备的有效期类似, 各用户终端的业务量信息以及各用户终端的活跃度等信 息的有效期通常可设置为一天。
本发明实施例三提供了一种小区重选设备, 由于在利用所述小区重选设 备进行小区重选时, 可优先选择活跃度较高 (活跃度大于设定的第二阔值) 的用户终端进行网络重定向操作, 并将其重定向至网络负载量较低(网络负 载量不大于设定的第一阔值) 的其他小区, 因而可提高小区重选时的用户针 对性, 在降低当前小区网络负载量的同时并不会降低用户终端的业务使用, 避免了盲目选取需重定向的用户终端所导致的网络负载波动的问题, 达到了 动态调节不同网络的承载情况、 降低网络的拥塞度以及实现资源的协调利用 的目的, 提高了小区重选的效果和执行效率。 本领域技术人员应明白, 本发明的实施例可提供为方法、 装置 (设备)、 或计算机程序产品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的形式。 而且, 本发明可釆用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器、 CD-ROM、 光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 装置 (设备)和计算机程序产 品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 / 或方框图中的每一流程和 /或方框、以及流程图和 /或方框图中的流程和 /或方框 的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处 理机或其他可编程数据处理设备的处理器以产生一个机器, 使得通过计算机 或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个 流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了 基本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权 利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种小区重选方法, 其特征在于, 包括:
针对任一小区, 获取所述小区内的各用户终端的业务量信息;
根据获取到的各用户终端的业务量信息, 确定各用户终端的活跃度; 在确定所述小区的网络负载量大于设定的第一阔值时, 将活跃度不小于 设定的第二阔值的用户终端重定向至网络负载量不大于设定的第一阔值的其 他小区。
2、 如权利要求 1所述的小区重选方法, 其特征在于, 获取所述小区内的 各用户终端的业务量信息, 包括:
针对任一用户终端, 获取所述用户终端的终端标识信息;
通过监测网络侧的媒体接入控制 MAC实体,获取以所述终端标识信息为 标识的用户终端的上下行业务信息, 并将所获取的上下行业务信息作为所述 用户终端的业务量信息。
3、 如权利要求 2所述的小区重选方法, 其特征在于,
所述用户终端的终端标识信息至少包括国际移动用户识别码 IMSI、 分组 临时移动用户识别码 P-TMSI、 系统架构演进临时移动用户识别码 S-TMSI以 及国际移动设备身份码 IMEI中的一种或多种。
4、 如权利要求 1~3任一所述的小区重选方法, 其特征在于, 所述根据获 取到的各用户终端的业务量信息, 确定各用户终端的活跃度, 包括:
针对任一用户终端, 通过以下公式确定所述用户终端的活跃度:
Active{t) = (\ - a) x Active (t - 1) + ax record (t) . 其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
5、 如权利要求 1~3任一所述的小区重选方法, 其特征在于, 所述将活跃 度不小于设定的第二阔值的用户终端重定向至网络负载量不大于设定的第一 阔值的其他小区, 包括: 针对任一活跃度不小于设定的第二阔值的用户终端, 当所述用户终端处 于空闲态时, 通过向所述用户终端发送伪寻呼消息的方式, 将所述用户终端 重定向至网络负载量不大于设定的第一阔值的其他小区; 或者,
当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的无线资源控制协议连接释放消息, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区。
6、 一种小区重选设备, 其特征在于, 包括:
业务量获取模块, 用于针对任一小区, 获取所述小区内的各用户终端的 业务量信息;
活跃度确定模块, 用于根据所述业务量获取模块获取到的各用户终端的 业务量信息, 确定各用户终端的活跃度;
小区重选执行模块, 用于在确定所述小区的网络负载量大于设定的第一 阔值时, 将活跃度不小于设定的第二阔值的用户终端重定向至网络负载量不 大于设定的第一阔值的其他小区。
7、 如权利要求 6所述的小区重选设备, 其特征在于,
所述业务量获取模块, 具体用于针对任一用户终端, 获取所述用户终端 的终端标识信息, 以及, 通过监测网络侧的媒体接入控制 MAC实体, 获取以 所述终端标识信息为标识的用户终端的上下行业务信息, 并将所获取的上下 行业务信息作为所述用户终端的业务量信息。
8、 如权利要求 7所述的小区重选设备, 其特征在于, 所述业务量获取模 块获取到的所述用户终端的终端标识信息至少包括国际移动用户识别码 IMSI、 分组临时移动用户识别码 P-TMSI、 系统架构演进临时移动用户识别码 S-TMSI以及国际移动设备身份码 IMEI中的一种或多种。
9、 如权利要求 6~8任一所述的小区重选设备, 其特征在于,
所述活跃度确定模块, 具体用于针对任一用户终端, 通过以下公式确定 所述用户终端的活跃度: Active{t) = (\ - a) x Active (t - 1) + ax record (t) .
其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
10、 如权利要求 6~8任一所述的小区重选设备, 其特征在于,
所述小区重选执行模块, 具体用于针对任一活跃度不小于设定的第二阔 值的用户终端, 当所述用户终端处于空闲态时, 通过向所述用户终端发送伪 寻呼消息的方式, 将所述用户终端重定向至网络负载量不大于设定的第一阔 值的其他小区; 或者,
当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的无线资源控制协议连接释放消息, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区。
11、 一种小区重选设备, 其特征在于, 包括:
釆集器, 用于针对任一小区, 获取所述小区内的各用户终端的业务量信 息;
处理器, 用于根据所述釆集器获取到的各用户终端的业务量信息, 确定 各用户终端的活跃度, 并在确定所述小区的网络负载量大于设定的第一阔值 时, 将活跃度不小于设定的第二阔值的用户终端重定向至网络负载量不大于 设定的第一阔值的其他小区。
12、 如权利要求 11所述的小区重选设备, 其特征在于,
所述釆集器, 具体用于针对任一用户终端, 获取所述用户终端的终端标 识信息, 以及, 通过监测网络侧的媒体接入控制 MAC实体, 获取以所述终端 标识信息为标识的用户终端的上下行业务信息, 并将所获取的上下行业务信 息作为所述用户终端的业务量信息。
13、 如权利要求 12所述的小区重选设备, 其特征在于,
所述釆集器获取到的所述用户终端的终端标识信息至少包括国际移动用 户识别码 IMSI、分组临时移动用户识别码 P-TMSI、 系统架构演进临时移动用 户识别码 S-TMSI以及国际移动设备身份码 IMEI中的一种或多种。
14、 如权利要求 11~13任一所述的小区重选设备, 其特征在于, 所述处理器, 具体用于针对任一用户终端, 通过以下公式确定所述用户 终端的活跃度:
Active{t) = (\ - a) x Active (t - 1) + ax record (t) . 其中, t表示当前时间,单位为小时; ^ w(t)表示用户终端的当前活跃度; "表示活跃度衰落因子, 取值为 (0,1 ); reCOW(t)表示用户终端的当前业务量。
15、 如权利要求 11~13任一所述的小区重选设备, 其特征在于, 所述处理器, 具体用于针对任一活跃度不小于设定的第二阔值的用户终 端, 当所述用户终端处于空闲态时, 通过向所述用户终端发送伪寻呼消息的 方式, 将所述用户终端重定向至网络负载量不大于设定的第一阔值的其他小 区; 或者,
当所述用户终端处于激活态时, 根据所述用户终端在从激活态转变为空 闲态的过程中所发送的无线资源控制协议连接释放消息, 将所述用户终端重 定向至网络负载量不大于设定的第一阔值的其他小区。
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