WO2013170457A1 - 异构网移动性增强的方法、装置和系统 - Google Patents

异构网移动性增强的方法、装置和系统 Download PDF

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Publication number
WO2013170457A1
WO2013170457A1 PCT/CN2012/075598 CN2012075598W WO2013170457A1 WO 2013170457 A1 WO2013170457 A1 WO 2013170457A1 CN 2012075598 W CN2012075598 W CN 2012075598W WO 2013170457 A1 WO2013170457 A1 WO 2013170457A1
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WO
WIPO (PCT)
Prior art keywords
information
cell
user equipment
smaller
discovery
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Application number
PCT/CN2012/075598
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English (en)
French (fr)
Inventor
常宁娟
徐海博
汪巍崴
吴联海
Original Assignee
富士通株式会社
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.)
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Publication date
Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to PCT/CN2012/075598 priority Critical patent/WO2013170457A1/zh
Priority to CN201280071144.5A priority patent/CN104205939B/zh
Publication of WO2013170457A1 publication Critical patent/WO2013170457A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0061Transmission or use of information for re-establishing the radio link of neighbour cell information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/04Reselecting a cell layer in multi-layered cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device and system for enhancing heterogeneous network mobility. Background technique
  • the system is upgraded by deploying small power base stations, such as a Pico base station, a femto base station, a remote radio head (RRH), and a relay node. Capacity or extended coverage, the cells covered by these small power base stations are called smaller cells.
  • small power base stations such as a Pico base station, a femto base station, a remote radio head (RRH), and a relay node. Capacity or extended coverage, the cells covered by these small power base stations are called smaller cells.
  • FIG. 1 is a schematic diagram of user equipment (UE) mobility in a heterogeneous network.
  • UE user equipment
  • the macro base station provides the primary coverage
  • the micro cell 1 covered by the micro base station 1 is used to increase the capacity
  • the micro cell 2 covers the micro cell 2 and micro
  • the micro cell 3 under the coverage of the base station 3 is used to provide coverage.
  • the source base station sends measurement configuration information to the user equipment UE, instructing the UE to perform measurement on certain frequencies/cells; the UE performs measurement, and measures The result is reported to the source base station.
  • the UE may need to suspend transmission of the current service.
  • the source base station performs handover determination according to the measurement result, selects the target cell, and performs handover preparation negotiation with the target base station where the target cell is located; the source base station indicates The UE performs handover, and the source base station forwards data that has not been successfully transmitted to the target base station; the UE disconnects from the source base station and starts to connect to the target base station.
  • the time of the cell is relatively short (herein referred to as short stay), especially for the faster UE; the short stay of the UE in the smaller cell limits the gain brought by the UE to connect to the smaller cell.
  • the number of handovers experienced by the UE may increase significantly during extensive/dense deployment of smaller cells.
  • the frequent handover not only consumes the energy of the UE but also causes the service interruption to reduce the throughput of the UE.
  • the signaling overhead caused by frequent handover and the data forwarding load on the network side are greatly increased.
  • the object of the embodiments of the present invention is to provide a method, a device, and a system for enhancing mobility of a heterogeneous network, which are applicable to user equipments in an idle or connected state, and have flexibility and reliability, and prevent unnecessary measurement by user equipment. , reducing energy costs and solving problems in the prior art.
  • An aspect of the present invention provides a method for enhancing mobility of a heterogeneous network, where the method includes: receiving, by a user equipment, information used by a network side to identify a smaller cell;
  • the user equipment When the value for determining the state of movement of the user equipment exceeds a preset value, the user equipment performs cell selection or reselection or cell discovery, or cell discovery and/or measurement based on the information.
  • a method for enhancing mobility of a heterogeneous network comprising: notifying a user equipment of information for identifying a smaller cell; the information for identifying a smaller cell is used for The user equipment performs cell selection or reselection or cell discovery based on the information, or performs cell discovery and/or measurement.
  • an apparatus for enhancing mobility of a heterogeneous network includes: a receiving unit, configured to receive information sent by a network side for identifying a small cell; and a processing unit, The processing unit is configured to perform cell selection or reselection or cell discovery, or cell discovery and/or measurement based on the information when the value used to determine the mobile device mobility state exceeds a preset value.
  • an apparatus for enhancing mobility of a heterogeneous network comprising: a sending unit, configured to notify a user equipment of information including a small cell for identifying; The information identifying the smaller cell is used by the user equipment for cell selection or reselection or cell discovery based on the information, or for cell discovery and/or measurement.
  • a network system includes a macro base station, at least one micro base station, and user equipment;
  • the macro base station and the at least one micro base station are configured to send information for identifying the smaller cell to the user equipment; the user equipment is configured to receive the information, and when the value used to determine the mobile device mobile state exceeds a preset value, Based on the information, cell selection or reselection/cell discovery, or cell discovery and/or measurement.
  • a computer readable program wherein when the program is executed in an apparatus for enhancing heterogeneous network mobility, the program causes the computer to be in the apparatus for enhancing heterogeneous network mobility A method of performing the above heterogeneous network mobility enhancement.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the heterogeneous network mobility enhancement described above in an apparatus for enhancing heterogeneous network mobility method.
  • the beneficial effects of the embodiments of the present invention are: performing cell selection or reselection/cell discovery, or cell discovery and/or based on information received from the network side for identifying a smaller cell when the user equipment is in a faster state. Measurement, applicable to user equipment in idle state or connected state, with high flexibility and reliability.
  • Figure 1 is a schematic diagram of UE mobility in a heterogeneous network
  • FIG. 2 is a flowchart of a method for enhancing mobility of a heterogeneous network according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a method for enhancing mobility of a heterogeneous network according to Embodiment 2 of the present invention.
  • FIG. 4 is a flowchart of a method for enhancing mobility of a heterogeneous network according to Embodiment 3 of the present invention.
  • FIG. 5 is a structural diagram of an apparatus for enhancing mobility of a heterogeneous network according to Embodiment 4 of the present invention.
  • FIG. 6 is a block diagram showing the structure of an apparatus for enhancing the mobility of a heterogeneous network according to Embodiment 5 of the present invention. detailed description
  • the first type the user equipment reports the mobile state of the UE, and the base station determines, according to the mobile state of the UE, that if the speed of the UE is fast, the smaller cell is excluded from the candidate target cell when the handover decision is made.
  • the inventors have found that the problem is that the user equipment UE in the idle state cannot be applied, and the UE still performs measurement on the smaller cell, thereby causing unnecessary energy overhead.
  • the second type When the user equipment UE is in the central area of the macro cell, and the MSE result of the UE is high speed, the UE stops performing small cell discovery, that is, does not perform measurement on a small cell.
  • the inventors have found that the problem lies in: not suitable for the UE at the cell edge; in addition, the UE in the central area of the macro cell in the method stops the discovery of all the smaller cells, including the smaller cells used to provide coverage, which It may cause the UE connection to be interrupted.
  • embodiments of the present invention provide a method, apparatus, and system for enhancing heterogeneous network mobility.
  • the embodiment of the present invention when determining that the value of the mobile device state of the user equipment exceeds a preset value, performing cell selection or reselection or cell discovery, or cell discovery based on information received from the network side for identifying a smaller cell And/or measuring, applicable to user equipments in the connected state and the idle state; further, when performing cell selection or reselection based on the received information or cell discovery, or cell discovery and/or measurement, the identifier is used for identification
  • the information of the smaller cell is excluded from the candidate cell, so that the faster user equipment can be switched/selected to a smaller cell with higher capacity; the user equipment is prevented from performing unnecessary measurement, and the energy overhead is reduced.
  • the smaller cell providing coverage is not included in the identifier of the smaller cell, and the connection of the user equipment with faster speed is avoided.
  • Step 201 The user equipment (UE) receives the information that is sent by the network side and is used to identify the smaller cell.
  • the information used to identify the smaller cell may be the cell identifier.
  • the global cell identifier ECGI, Evolved Cell Global Identifier
  • the frequency information of the smaller cell may also be the cell identity and frequency information, such as the cell identity is the physical cell identity (PCI, Physical Cell
  • Identifier and frequency, but not limited to the above information, may also include any other information that can identify a small cell, which will not be enumerated here;
  • the network side may be a base station of the serving cell to which the UE belongs, or may be other functional entities on the network side, such as 0AM.
  • Step 202 When determining that the value of the mobile device state of the user equipment exceeds a preset value, the user equipment UE performs cell selection or reselection or cell discovery, or cell discovery and/or measurement based on the information.
  • the value used to determine the moving state of the user equipment may be a speed value.
  • the UE may obtain a moving speed by performing speed measurement by Doppler shift/signal strength variation or the like, if the moving speed exceeds
  • the UE can consider that its mobile state is faster, and then use the information obtained from the network side for cell selection or reselection or cell discovery, or cell discovery and/or measurement.
  • the value used to determine the mobile device state of the user equipment may also be a handover or cell reselection count value.
  • the UE may obtain its mobile state by using a Mobility State Estimation (MSE) function, which is currently obtained through The handover count value or the cell reselection count value is compared with a preset value to determine that the UE's mobile state is a normal, medium, and high speed state. If the handover count value or the cell reselection count value exceeds a preset value, the UE may consider that the mobile state is faster, for example, when the UE is determined to be a medium-speed or high-speed state by using the MSE function, then the network side is obtained.
  • the information is for cell selection or reselection or cell discovery, or cell discovery and/or measurement.
  • the preset value may be set by the operator according to the actual situation, and is not described here.
  • the value of determining the mobile state of the device is not limited to the above two types, and may be specifically The situation is achieved in any other way.
  • the user equipment receives information for identifying a small cell that is sent by the network, and performs cell selection or reselection or cell discovery, and/or cell discovery and/or measurement based on the information, and is applicable to
  • the user equipment UE in the idle state is also applicable to the user equipment UE in the connected state.
  • step 202 cell selection or reselection or cell discovery, or cell discovery and/or measurement is performed based on the information, where: the user equipment UE is in an idle state for cell selection or reselection or When the cell is discovered, or when the user equipment UE is in the connected state for cell discovery and/or measurement, the smaller cell identified in the information is not used as the candidate cell.
  • the user equipment with faster speed can be further prevented from switching/selecting to a smaller cell with improved capacity; the user equipment is prevented from performing unnecessary measurement, and the energy overhead is reduced.
  • the smaller cell identified in the information does not include a smaller cell for providing coverage. In this way, avoid the disconnection of the faster user equipment connection.
  • the user equipment for the idle state and the connected state can use the information for cell selection or reselection or cell discovery, or cell discovery and/or measurement.
  • the above information can be used for both the idle state and the connected state of the user equipment.
  • the idle state and the connection state of the user equipment may also correspond to the first information and the second information, respectively.
  • the UE may receive the first information and the second information sent by the network side. If the network side sends the information at the same time, the user equipment UE receives the first information and the second information at the same time. If the network side separately sends, the UE receives the first information and the second information respectively.
  • step 202 when the user equipment is in an idle state, perform cell selection or reselection or cell discovery based on the first information; when the user equipment is in a connected state, perform cell discovery and/or measurement based on the second information. .
  • the network can preferentially configure only the second information of the connection state, so that the UE performs measurement/handover first, and does not perform cell reselection/discovery for the smaller cell for the idle state UE, thereby reducing the energy overhead of the idle state UE.
  • the method is applicable to user equipments in an idle or connected state; and the information for identifying the smaller cells is excluded from the candidate cells, so that the user equipment switching/selecting to the faster speed can be avoided.
  • Smaller cells of capacity avoid unnecessary measurement by user equipment and reduce energy overhead.
  • the smaller cell providing coverage is not included in the identifier of the smaller cell, and the connection of the user equipment with faster speed is prevented from being interrupted.
  • Figure 3 is a diagram showing the method for enhancing the mobility of a heterogeneous network according to Embodiment 2 of the present invention. On the network side, as shown in Figure 3, the method includes:
  • Step 301 Notify the user equipment UE of the information used to identify the smaller cell.
  • the information used to identify the smaller cell is used by the user equipment UE to perform cell selection or reselection or cell discovery based on the information, or perform cell discovery. And / or measurement.
  • the user equipment can perform cell selection or reselection or cell discovery based on the information, or perform cell discovery and/or measurement, and is applicable to user equipment in any state.
  • the network side may reasonably set the information according to the network deployment situation and the cell load situation, where the network deployment situation may include a smaller cell deployment density, a smaller cell deployment location, and a smaller cell deployment type (eg, Provide coverage and increase capacity), cell frequency information, etc.
  • the method further includes: configuring the information for identifying the smaller cell (step 300).
  • the network side may configure and send the information to the base station of the UE serving cell; in addition, it may also be a network.
  • the other functional entities on the side configure and notify the network side base station, and the base station transmits the information. Therefore, this step 301 is an optional step.
  • step 300 two sets of information are configured, which respectively correspond to an idle state and a connected state of the user equipment.
  • the step 300 specifically includes: separately configuring the first information and the second information used when the user equipment is in an idle state and a connected state;
  • step 301 includes: notifying the user equipment together with the first information and the second information.
  • the first information and the second information may be notified to the user equipment by means of a broadcast; or the first information is notified to the user equipment by means of a broadcast, and the second information is notified to the user equipment by user-specific signaling. Or the second information is notified to the user equipment by means of broadcast, and the first information is notified to the user equipment by user-specific signaling.
  • the information includes a smaller cell identity, and/or a frequency at which the smaller cell is located. And the smaller cells identified in the information do not include smaller cells for providing coverage.
  • the network side can reasonably set the information according to the network deployment situation, the cell load situation, and the like, so that the UE performs cell selection or reselection, cell discovery, and/or measurement based on the information;
  • User equipment is applicable; avoiding faster switching of user equipment to select smaller cells with increased capacity, avoiding unnecessary measurement by user equipment, and reducing energy overhead.
  • the smaller cell that provides coverage is not included in the identifier of the smaller cell, and the disconnection of the faster user equipment is avoided.
  • FIG. 4 is a diagram showing a method for enhancing mobility of a heterogeneous network according to Embodiment 3 of the present invention.
  • the two sets of information are configured on the network side as an example for description, and the first information and the second information are configured by the base station on the network side as an example.
  • the method includes:
  • Step 401 The base station configures information used to identify a small cell.
  • the information for identifying the smaller cell includes two sets of information, that is, the first information and the second information, respectively corresponding to the idle state and the connection state of the user equipment;
  • the base station can reasonably set the information used to identify the smaller cell according to the network deployment situation and the cell load situation.
  • the following examples are as follows:
  • the information of the small cell may be a frequency list, that is, within the coverage of the macro cell, the frequency information may be used to identify the cell, and the information configured by the base station is frequency information; For example, if there are two micro cells in the coverage of the macro cell, the same frequency is used. If the micro cell cannot be uniquely identified by the frequency information, when the information is configured, the information includes the cell identifier and the frequency information, where the cell
  • the identifier is a physical cell identifier (PCI);
  • the information configured by the base station can be a global identity list.
  • the information may be a cell identifier, for example, an Evolved Cell Global Identifier (ECGI); or may be a frequency information of a small cell; or may be a cell identifier and a frequency cell, eg, the cell identifier is a physical cell identifier ( PCI, Physical Cell Identifier) and frequency, but not limited to the above information, may also include any other information capable of identifying a small cell, which will not be enumerated here;
  • ECGI Evolved Cell Global Identifier
  • PCI Physical Cell Identifier
  • the identification information of the smaller cell providing coverage is not included.
  • Step 402 The base station sends the configured information to the user equipment.
  • the base station may be a macro base station of the heterogeneous network system, or may be a micro base station of the heterogeneous network system;
  • first information and the second information may be notified to the user equipment UE by means of a broadcast, and the first information may also be notified by broadcast, and the second information may be notified by dedicated signaling; or notified by dedicated information.
  • the network side may simultaneously send the first information and the second information according to actual conditions, or send the first information and the second information separately.
  • Step 403 The user equipment UE currently belonging to the base station receives the information sent by the base station for identifying a small cell.
  • Step 404 The UE determines whether the value of the user equipment movement state exceeds a preset value. If the determination result is yes, step 405 is performed, and if the determination result is no, step 410 is performed.
  • Step 405 The user equipment UE determines whether it is in an idle state. If the determination result is yes, step 406 is performed, otherwise step 407 is performed.
  • Step 406 In step 405, when the determination result is yes, the user equipment UE performs cell selection or reselection or cell discovery based on the first information, and excludes the smaller cell indicated in the first information from the candidate cell. .
  • Step 407 In step 405, when the determination result is no, the user equipment UE further determines whether the second information is received. If the determination result is yes, step 408 is performed, otherwise step 409 is performed. Step 408: In step 407, when the determination result is yes, the UE may perform cell discovery and/or measurement based on the second information.
  • Step 409 In step 407, when the determination result is no, the UE may perform cell discovery and/or measurement based on the first information.
  • the measurement may be, for example, a radio resource management (RRM) measurement step 410 performed by the user equipment according to measurement configuration information sent by the base station, in step 404. If the result of the determination is that the moving speed state of the UE device is not a high moving speed, the UE does not use the foregoing information when performing cell selection or reselection or discovery, or performing cell discovery and/or measurement;
  • RRM radio resource management
  • the user equipment UE can operate according to an existing mechanism, i.e., the UE ignores the received information.
  • the network side can reasonably set the information according to the network deployment situation, the cell load situation, and the like, so that the UE performs cell selection or reselection based on the information, or performs cell discovery, cell discovery, and/or measurement; Both user equipments in idle state are applicable; avoiding faster switching of user equipment to select smaller cells with increased capacity, avoiding unnecessary measurement by user equipment, and reducing energy overhead.
  • the smaller cell that provides coverage is not included in the identifier of the smaller cell, and the connection of the faster user equipment is interrupted.
  • Embodiments of the present invention also provide an apparatus for enhancing mobility of a heterogeneous network, as described in the following embodiments. Since the principle of solving the problem of the device is similar to the method for enhancing the mobility of the heterogeneous network based on the device, the implementation of the device can be referred to the implementation of the method, and the repeated description is omitted.
  • Figure 5 is a diagram showing an apparatus for enhancing the mobility of a heterogeneous network according to Embodiment 4 of the present invention. As shown in FIG. 5, the device includes a receiving unit 501 and a processing unit 502;
  • the receiving unit 501 is configured to receive information that is sent by the network side to identify the smaller cell
  • the processing unit 502 is configured to: when the value used to determine the mobile device mobile state exceeds a preset value, perform cell selection or Reselection, or cell discovery and/or measurement.
  • the UE can perform cell selection or reselection or cell discovery, cell discovery, and/or measurement based on information sent by the network side, and is applicable to user equipments in idle and connected states, and avoids faster user equipment. Switching/selecting to a smaller cell that increases capacity prevents user equipment from making unnecessary measurements and reduces energy overhead.
  • the information includes a smaller cell identity, and/or a frequency at which the smaller cell is located.
  • the information of the smaller cell may be different according to different situations.
  • the processing unit 502 is configured to not identify the information when the user equipment is in an idle state for cell selection or reselection/cell discovery, or when the user equipment is in a connected state for cell discovery and/or measurement. A smaller cell is used as a candidate cell.
  • the identified smaller cell does not include a smaller cell for providing coverage. This will prevent the disconnection of faster user equipment connections.
  • the user equipment for the idle state and the connected state can use the information for cell selection or reselection or cell discovery, or cell discovery and/or measurement.
  • the idle state and the connection state of the user equipment may also respectively correspond to the first information and the second information.
  • the receiving unit 501 is specifically configured to separately or simultaneously receive the network side to identify the smaller cell.
  • the first information and the second information are used by the processing unit 502, when the user equipment is in an idle state, performing cell selection or reselection or discovery based on the first information; when the user equipment is in the connected state, performing cell discovery based on the second information / or measurement.
  • the device may be a user equipment, such as a mobile terminal such as a mobile phone, a PDA, or a notebook computer.
  • the user equipment in the idle or connected state can use the information sent by the network side to perform cell reselection or selection or cell discovery, or perform cell discovery and/or measurement;
  • the information identifying the smaller cell is excluded from the candidate cell, and the user equipment with faster speed can be prevented from switching/selecting to a smaller cell that improves the capacity, and the user equipment is prevented from performing unnecessary measurement, thereby reducing energy consumption.
  • the smaller cell providing coverage is not included in the identifier of the smaller cell, and the connection of the user equipment with faster speed is prevented from being interrupted.
  • FIG. 6 is a diagram showing an apparatus for enhancing the mobility of a heterogeneous network according to Embodiment 5 of the present invention.
  • the apparatus includes: a sending unit 601, configured to notify a user equipment of information including a small cell, wherein the information for identifying a smaller cell is used by the user equipment to perform cell selection or reselection based on the information. Or community discovery, or small Area discovery and / or measurement.
  • the device may be a network side entity, such as a base station or a functional entity such as 0AM.
  • the apparatus may further include: a configuration unit 600, configured to configure information for identifying a smaller cell.
  • the network side can reasonably set the information according to network deployment conditions and cell load conditions.
  • the network side may separately configure corresponding first information and second information for the user equipment UE in the idle state and the connected state.
  • the configuration unit 600 is configured to separately configure the first information and the second information used when the user equipment is in an idle state and a connected state; and the sending unit 601 is configured to use the first information and the second information together or separately Notify the user device.
  • the information may be sent to the user equipment by means of broadcast or dedicated signaling, or the first information may be sent by means of broadcast, and the second information may be sent by dedicated information, and vice versa.
  • the sending unit 601 is configured to notify the user equipment by using the first information and the second information by means of broadcast or dedicated signaling; or, for notifying the user equipment by using the first information, and transmitting the second information to the user.
  • Dedicated signaling to the user equipment; or, the second information is used to notify the user equipment by means of broadcast, and the first information is notified to the user equipment by user-specific signaling.
  • the information may include a smaller cell identity, and/or a frequency of a smaller cell, depending on the actual situation.
  • the network side can reasonably set the information according to network deployment conditions, cell load conditions, etc., so that the UE performs cell selection or reselection or discovery, cell discovery, and/or measurement based on the information; User equipment is applicable; avoiding faster switching of user equipment to select smaller cells with increased capacity, avoiding unnecessary measurement by user equipment and reducing energy overhead.
  • the smaller cell that provides coverage is not included in the identifier of the smaller cell, and the disconnection of the faster user equipment is avoided.
  • the embodiment 6 of the present invention further provides a heterogeneous network system, where the system includes a macro base station, at least one micro base station, and a user equipment, where the macro base station and the at least one micro base station are configured to send a small cell to the user equipment.
  • the user equipment is configured to receive information, and perform cell selection or reselection or cell discovery, or cell discovery and/or measurement based on the information when the value used to determine the mobile device mobility state exceeds a preset value.
  • the macro base station and the at least one micro base station include the apparatus described in Embodiment 5 above; the user equipment includes the apparatus described in Embodiment 6 above.
  • Embodiments of the present invention also provide a computer readable program, wherein in an apparatus for enhancing mobility of a heterogeneous network When the program is executed, the program causes the computer to execute the method of heterogeneous network mobility enhancement of the above embodiments 1 to 3 in the user equipment.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform the heterogeneous network mobility enhancement of the above embodiments 1 to 3 in the apparatus for enhancing the mobility of the heterogeneous network. method.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

一种异构网移动性增强的方法、装置和系统。该方法包括:用户设备接收网络侧发送的包括用于标识较小小区的信息;在用于确定用户设备移动状态的值超过预设值时,基于所述信息进行小区选择或重选或小区发现、或者小区发现和/或测量。通过本发明实施例,可避免速度较快的用户设备切换/重选到提升容量的较小小区,对处于任何状态的用户设备均适用,避免用户设备进行不必要的测量,降低了能量开销。

Description

异构网移动性增强的方法、 装置和系统 技术领域
本发明涉及一种通信领域,特别涉及一种异构网移动性增强的方法、装置和系统。 背景技术
在异构网络中, 通过布署小功率基站, 如微 (Pico) 基站、 毫微微蜂 (Femto) 基站、 远端无线头 (RRH, Remote Radio Head )、 中继 (Relay)节点等来提升系统容 量或者扩展覆盖, 这些小功率基站覆盖下的小区称为较小小区。
图 1是异构网络中用户设备(UE)移动示意图。 如图 1所述(虚线表示 UE移动 轨迹, 箭头表示 UE移动方向), 宏基站提供主要覆盖, 微基站 1覆盖下的微小区 1 用于提升容量, 微基站 2覆盖下的微小区 2和微基站 3覆盖下的微小区 3用于提供 覆盖。
目前, 长期演进 (LTE, Long Term Evolution) 网络的小区切换过程如下: 源基 站下发测量配置信息给用户设备 UE, 指示该 UE对某些频率 /小区进行测量; 该 UE 进行测量, 并将测量结果上报给该源基站, 测量过程中, 该 UE可能需要暂停当前业 务的传输; 源基站结合测量结果进行切换判断, 选择目标小区, 并和目标小区所在目 标基站进行切换准备协商; 该源基站指示该 UE进行切换, 同时该源基站将尚未来得 及成功发送的数据转发给目标基站; 该 UE断开与该源基站的连接, 并开始连接到该 目标基站上。
但是发明人在实现本发明的过程中发现现有技术的缺陷在于, 在异构网络中, 因 为较小小区的覆盖范围比较小, 当 UE移动过较小小区时, 使得该 UE停留在较小小 区的时间比较短 (此处称短暂停留), 尤其对于速度较快的 UE; UE在较小小区的短 暂停留限制了该 UE连接到较小小区带来的增益。 同时,在较小小区的广泛 /密集布署 时, 该 UE所经历的切换次数会显著增加。 频繁的切换不仅严重消耗该 UE的能量而 且造成的业务中断会降低 UE的吞吐量; 此外, 频繁切换带来的信令开销以及网络侧 数据转发负载都会大大增加。这些弊端可能会远大于将该 UE切换至较小小区所带来 的好处。 目前还没有解决上述问题的有效方法。
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容
本发明实施例的目的在于提供一种异构网移动性增强的方法、装置和系统, 对处 于空闲或连接状态的用户设备均适用, 具有灵活性和可靠性, 避免用户设备进行不必 要的测量, 降低了能量开销, 解决了现有技术中存在的问题。
根据本发明实施例的一个方面提供了一种异构网移动性增强的方法, 该方法包括: 用户设备接收网络侧发送的用于标识较小小区的信息;
在用于确定用户设备移动状态的值超过预设值时,该用户设备基于该信息进行小 区选择或重选或小区发现、 或者小区发现和 /或测量。
根据本发明实施例的另一个方面提供了一种异构网移动性增强的方法, 该方法包括: 将用于标识较小小区的信息通知用户设备;该用于标识较小小区的信息用于供该 用户设备基于该信息进行小区选择或重选或小区发现、或者进行小区发现和 /或测量。
根据本发明实施例的另一个方面提供了一种增强异构网移动性的装置, 包括: 接收单元, 该接收单元用于接收网络侧发送的用于标识较小小区的信息; 处理单元, 该处理单元用于当用于确定用户设备移动状态的值超过预设值时, 基 于该信息进行小区选择或重选或小区发现、 或者小区发现和 /或测量。
根据本发明实施例的另一个方面提供了一种增强异构网移动性的装置, 该装置包括: 发送单元, 该发送单元用于将包括用于标识较小小区的信息通知用户设备; 该用 于标识较小小区的信息用于供该用户设备基于该信息进行小区选择或重选或小区发 现、 或者进行小区发现和 /或测量。
根据本发明实施例的另一个方面提供了一种网络系统, 包括宏基站、至少一个微 基站和用户设备;
该宏基站和至少一个微基站用于向该用户设备发送用于标识较小小区的信息; 该用户设备, 用于接收该信息, 并在用于确定用户设备移动状态的值超过预设值 时, 基于该信息进行小区选择或重选 /小区发现、 或者小区发现和 /或测量。
根据本发明实施例的另一个方面提供了一种计算机可读程序,其中当在增强异构 网移动性的装置中执行该程序时,该程序使得计算机在该增强异构网移动性的装置中 执行上述异构网移动性增强的方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序的存储介质, 其中该计算机可读程序使得计算机在增强异构网移动性的装置中执行上述异构网移 动性增强的方法。
本发明实施例的有益效果在于: 在用户设备处于较快速度状态时, 基于从网络侧 接收到的用于标识较小小区的信息进行小区选择或重选 /小区发现、或者小区发现和 / 或测量, 对处于空闲状态或连接状态的用户设备均适用, 灵活性和可靠性高。
参照后文的说明和附图, 详细公开了本发明的特定实施方式, 指明了本发明的原 理可以被采用的方式。应该理解, 本发明的实施方式在范围上并不因而受到限制。在 所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多 个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中的 特征。
应该强调, 术语 "包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。
附图说明
从以下结合附图的详细描述中, 本发明实施例的上述以及其他目的、特征和优点 将变得更加显而易见, 在附图中:
图 1是异构网络中 UE移动示意图
图 2是本发明实施例 1的异构网移动性增强的方法流程图;
图 3是本发明实施例 2的异构网移动性增强的方法流程图;
图 4是本发明实施例 3的异构网移动性增强的方法流程图;
图 5是本发明实施例 4的增强异构网移动性的装置结构图;
图 6是本发明实施例 5的增强异构网移动性的装置结构图。 具体实施方式
下面结合附图对本发明的各种实施方式进行说明。 这些实施方式只是示例性的, 不是对本发明的限制。为了使本领域的技术人员能够容易地理解本发明的原理和实施 方式, 本发明的实施方式以异构网的移动性增强为例进行说明, 但可以理解, 本发明 并不限于上述系统, 对于涉及增强移动性的其他系统均适用。 为了解决上述问题, 目前有下述两种方案:
第一种: 用户设备 UE上报其移动状态, 基站根据该 UE的移动状态, 判断若该 UE的速度较快, 则在进行切换判决时, 将较小小区排除在候选目标小区之外。
但发明人发现其问题在于:无法适用空闲状态下的用户设备 UE,且该 UE还是会 执行对较小小区的测量, 从而带来不必要的能量开销。
第二种: 当用户设备 UE处于宏小区中心区域, 且该 UE的 MSE结果为高速时, 该 UE停止进行较小小区发现, 即不对较小小区进行测量等。
但发明人发现其问题在于: 不适于处于小区边缘的 UE; 此外, 该方法中处于宏 小区中心区域的 UE会停止对所有较小小区的发现,包括对用于提供覆盖的较小小区, 这可能会导致 UE连接中断。
因此, 本发明实施例提供了一种异构网移动性增强的方法、装置和系统。 通过本 发明实施例, 在用于确定用户设备移动状态的值超过预设值时, 基于从网络侧接收到 的用于标识较小小区的信息进行小区选择或重选或小区发现、 或者小区发现和 /或测 量, 对处于连接状态和空闲状态的用户设备均适用; 进一步, 在基于接收到的信息进 行小区选择或重选或小区发现、 或者小区发现和 /或测量时, 将该用于标识较小小区 的信息排除在候选小区之外, 这样可避免速度较快的用户设备切换 /选择到提升容量 的较小小区; 避免用户设备进行不必要的测量, 降低了能量开销。 另外, 在该标识较 小小区的标识中不包括提供覆盖的较小小区, 避免速度较快的用户设备连接中断。 以 下结合附图对本发明实施例进行详细说明。
图 2是本发明实施例 1的异构网移动性增强的方法。 在 UE侧, 该方法包括: 步骤 201, 用户设备 (UE) 接收网络侧发送的包括用于标识较小小区的信息; 在本实施例中, 该用于标识较小小区的信息可以是小区标识, 例如, 全局小区标 识 (ECGI , Evolved Cell Global Identifier); 也可以是较小小区所在频率信息; 还可以是小区标识和频率信息, 如小区标识为物理小区标识 (PCI, Physical Cell
Identifier)和频率, 但不限于上述信息, 还可包括其他任何能够标识较小小区的信 息, 此处不再一一列举;
该网络侧可以是该 UE所属服务小区的基站, 也可以是网络侧其他功能实体, 如 0AM。
步骤 202, 在用于确定用户设备移动状态的值超过预设值时, 该用户设备 UE基 于该信息进行小区选择或重选或小区发现、 或者小区发现和 /或测量;
在本实施例中, 该用于确定用户设备移动状态的值可为速度值, 例如, 该 UE可 通过多普勒频移 /信号强度变化等进行速度测量获得其移动速度, 如果其移动速度超 过预设值时, 则该 UE可认为其移动状态较快, 这时利用从网络侧获得信息进行小区 选择或重选或小区发现、 或者小区发现和 /或测量。
此外, 该用于确定用户设备移动状态的值还可为切换或小区重选计数值, 例如, 该 UE可以通过移动状态估计 (Mobility State Estimation, MSE) 功能获得其移动状 态, 目前通过将获得的切换计数值或小区重选计数值与预设值进行对比来确定该 UE 的移动状态为普通、 中速、 和高速状态。 如果该切换计数值或小区重选计数值超过预 设值, 则该 UE可认为其移动状态较快, 比如当通过 MSE功能判断 UE为中速和或高速 状态时, 这时利用从网络侧获得信息进行小区选择或重选或小区发现、或者小区发现 和 /或测量。
在本实施例中, 无论采用哪种确定方法, 该预设值可由运营商根据实际情况进行 设置, 此处不再赘述; 但对于确定设备移动状态的值不限于上述两种, 还可根据具体 情况采用其他任何方式实现。
由上述实施例可知, 用户设备接收网络侧下发的用于标识较小小区的信息, 并基 于该信息进行小区选择或重选或小区发现、和 /或小区发现和 /或测量, 既适用于空闲 状态的用户设备 UE, 也适用于连接状态的用户设备 UE。
在本实施例中, 在步骤 202中, 基于该信息进行小区选择或重选或小区发现、 或 者小区发现和 /或测量, 具体为: 在该用户设备 UE处于空闲状态进行小区选择或重选 或小区发现时, 或者在该用户设备 UE处于连接状态进行小区发现和 /或测量时, 不将 该信息中标识的较小小区作为候选小区。这样, 可进一步避免速度较快的用户设备切 换 /选择到提升容量的较小小区; 避免用户设备进行不必要的测量, 降低了能量开销。
在本实施例中,该信息中标识的较小小区不包括用于提供覆盖的较小小区。这样, 避免速度较快的用户设备连接中断。
由上述实施例可知,对于空闲状态和连接状态的用户设备均可使用该信息进行小 区选择或重选或小区发现、 或者小区发现和 /或测量。 在本实施例中, 对于用户设备的空闲状态和连接状态都可使用上述信息。
此外, 对于用户设备的空闲状态和连接状态还可分别对应第一信息和第二信息, 在这种情况下, 在步骤 201中, 该 UE可接收网络侧发送的该第一信息和第二信息; 其中如果网络侧同时发送, 则该用户设备 UE同时接收该第一信息和第二信息, 如果 网络侧分别发送, 则该 UE分别接收该第一信息和第二信息。 在步骤 202中, 在该用 户设备处于空闲状态时, 基于该第一信息进行小区选择或重选或小区发现; 在该用户 设备处于连接状态时, 基于该第二信息进行小区发现和 /或测量。 这样, 分别针对不 同的用户设备所处的状态来基于不同的信息进行小区选择或重选、或者进行小区发现 和 /或测量, 这样可降低用户设备能量的开销, 例如, 在负载均衡时, 网络侧可以优 先仅配置连接状态的第二信息, 使得该 UE先进行测量 /切换, 而对空闲态的 UE不进 行对较小小区的小区重选 /发现, 从而降低空闲状态 UE的能量开销。
由上述实施例可知, 该方法对处于空闲或连接状态的用户设备均适用; 并且将用 于标识较小小区的信息排除在候选小区之外, 可避免速度较快的用户设备切换 /选择 到提升容量的较小小区, 避免用户设备进行不必要的测量, 降低了能量开销。 另外, 在该标识较小小区的标识中不包括提供覆盖的较小小区,避免速度较快的用户设备连 接中断。
图 3是本发明实施例 2的异构网移动性增强的方法。 在网络侧, 如图 3所示, 该 方法包括:
步骤 301, 将用于标识较小小区的信息通知用户设备 UE; 该用于标识较小小区的 信息用于供该用户设备 UE基于该信息进行小区选择或重选或小区发现、 或者进行小 区发现和 /或测量。
由上述实施例可知, 通过将该信息通知用户设备 UE, 可使该用户设备基于该信 息进行小区选择或重选或小区发现、 或者进行小区发现和 /或测量, 适用于任何状态 的用户设备。
在本实施例中, 网络侧可根据网络部署情况、 小区负载情况等合理设置该信息, 其中网络部署情况可包括较小小区部署疏密程度、较小小区部署位置、较小小区部署 类型 (如提供覆盖和提升容量)、 小区频率信息等情况。 在这种情况下, 该方法还包 括: 配置该用于标识较小小区的信息 (步骤 300)。
其中, 网络侧可为 UE服务小区的基站配置并发送该信息; 此外, 也可以是网络 侧其他功能实体配置并通知网络侧基站, 由该基站发送该信息。 因此, 该步骤 301为 可选步骤。
在本实施例中, 在步骤 300中, 配置 2组信息, 分别对应用户设备的空闲状态和 连接状态。 这样, 步骤 300具体包括: 分别配置在该用户设备处于空闲状态和连接状 态时使用的第一信息和第二信息;
并且步骤 301包括:将该第一信息和第二信息一起或者分别通知用户设备。其中, 可将该第一信息和第二信息通过广播的方式通知用户设备; 或者, 将该第一信息通过 广播的方式通知该用户设备, 将该第二信息通过用户专用信令通知该用户设备; 或者 将该第二信息通过广播的方式通知该用户设备,将该第一信息通过用户专用信令通知 该用户设备。
在本实施例中, 该信息包括较小小区标识、 和 /或较小小区所在频率。 并且该信 息中标识的较小小区不包括用于提供覆盖的较小小区。
由上述实施例可知, 网络侧可根据网络部署情况、小区负载情况等合理设置该信 息, 使得该 UE基于该信息进行小区选择或重选、 小区发现和 /或测量; 对处于连接状 态和空闲状态的用户设备均适用; 避免速度较快的用户设备切换 /选择到提升容量的 较小小区, 避免用户设备进行不必要的测量, 降低了能量开销。 另外, 在该标识较小 小区的标识中不包括提供覆盖的较小小区, 避免速度较快的用户设备连接中断。
图 4是本发明实施例 3的异构网移动性增强的方法。以网络侧配置 2组信息为例 进行说明, 并且以网络侧的基站配置该第一信息和第二信息为例进行说明。如图 4所 示, 该方法包括:
步骤 401, 基站配置用于标识较小小区的信息;
在本实施例中, 该用于标识较小小区的信息包括 2组信息, 即第一信息和第二信 息, 分别对应用户设备的空闲状态和连接状态;
该基站可根据网络部署情况、小区负载情况等合理设置该用于标识较小小区的信 息; 以下举例说明:
例如, 在宏小区 (Macro Cel l ) 覆盖范围内有 3个微小区 (Pico Cel l ), 该 3个 微小区所在频率不同, 分别为 f l、 f2、 f3, 在这种情况下, 该标识较小小区的信息 可为频率列表, 即在宏小区覆盖范围内, 可采用频率信息来标识小区, 则该基站配置 的信息为频率信息; 例如, 在宏小区覆盖范围内有 2个微小区采用相同的频率, 此时如果用频率信息 无法唯一标识该微小区, 则在配置该信息时, 该信息包括小区标识和频率信息, 其中 该小区标识为物理小区标识 ( PCI );
例如, 由于全局小区标识 ECGI可以唯一标识一个小区, 因此, 该基站配置的信 息可为全局标识列表。
其中,该信息可以是小区标识,例如,全局小区标识(ECGI, Evolved Cell Global Identifier); 也可以是较小小区所在频率信息; 还可以是小区标识和频率小区, 如 小区标识为物理小区标识 (PCI , Physical Cell Identifier) 和频率, 但不限于上 述信息, 还可包括其他任何能够标识较小小区的信息, 此处不再一一列举;
在配置的较小小区中, 不包括提供覆盖的较小小区的标识信息。
步骤 402, 该基站将配置的信息向用户设备发送;
在本实施例中, 该基站可为该异构网络系统的宏基站, 也可为该异构网络系统的 微基站;
此外, 可通过广播的方式将该第一信息和第二信息通知该用户设备 UE, 此外, 也可通过广播方式通知该第一信息, 通过专用信令通知该第二信息; 或者通过专用信 息通知该第一信息和第二信息;
网络侧可根据实际情况同时发送该第一信息和第二信息,或者先后分别发送该第 一信息和第二信息。
步骤 403, 当前归属该基站的用户设备 UE接收该基站发送的用于标识较小小区 的信息。
步骤 404, 该 UE判断用于确定用户设备移动状态的值是否超过预设值, 在判断 结果为是时, 执行步骤 405, 在判断结果为否时, 执行步骤 410。
步骤 405, 该用户设备 UE判断是否处于空闲状态, 若判断结果为是, 则执行步 骤 406, 否则执行步骤 407。
步骤 406, 在步骤 405中, 判断结果为是时, 则该用户设备 UE基于第一信息进 行小区选择或重选或小区发现, 将该第一信息中指示的较小小区排除在候选小区之 外。
步骤 407, 在步骤 405中, 判断结果为否时, 则该用户设备 UE进一步判断是否 接收到第二信息, 在判断结果为是时, 执行步骤 408, 否则执行步骤 409。 步骤 408, 在步骤 407中, 判断结果为是时, 该 UE可基于该第二信息进行小区 发现和 /或测量。
步骤 409, 在步骤 407中, 判断结果为否时, 该 UE可基于该第一信息进行小区 发现和 /或测量。
在本实施例中, 在步骤 408和 409中, 该测量例如可以是该用户设备根据基站下 发的测量配置信息所进行的无线资源管理 (Radio Resource Management , RRM) 等测 步骤 410, 在步骤 404中, 在判断结果为该 UE设备的移动速度状态不是较高的 移动速度, 则该 UE进行小区选择或重选或发现、 或者进行小区发现和 /或测量时, 不 利用上述信息;
在该情况下, 该用户设备 UE可按照现有机制进行操作, 即 UE忽略收到的上述信 息。
由上述实施例可知, 网络侧可根据网络部署情况、小区负载情况等合理设置该信 息, 使得该 UE基于该信息进行小区选择或重选或小区发现、 小区发现和 /或测量; 对 处于连接状态和空闲状态的用户设备均适用; 避免速度较快的用户设备切换 /选择到 提升容量的较小小区, 避免用户设备进行不必要的测量, 降低了能量开销。 另外, 在 该标识较小小区的标识中不包括提供覆盖的较小小区,避免速度较快的用户设备连接 中断。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以 通过程序来指令相关的硬件完成, 所述的程序可以存储于一计算机可读取存储介质 中, 该程序在执行时, 可以包括上述实施例方法中的全部或部分步骤, 所述的存储介 质可以包括: R0M、 RAM, 磁盘、 光盘等。
本发明实施例还提供了一种增强异构网移动性的装置, 如下面的实施例所述。 由于该装置解决问题的原理与上述基于该装置的异构网移动性增强的方法相似,因此 该装置的实施可以参见方法的实施, 重复之处不再赘述。
图 5本发明实施例 4的增强异构网移动性的装置。 如图 5所示, 该装置包括接 收单元 501和处理单元 502 ; 其中,
接收单元 501, 用于接收网络侧发送的用于标识较小小区的信息; 处理单元 502, 用于在用于确定用户设备移动状态的值超过预设值时时,基于该信息进行小区选择或 重选、 或者小区发现和 /或测量。
由上述实施例可知, UE 可基于网络侧发送的信息进行小区选择或重选或小区发 现、 小区发现和 /或测量, 对处于空闲和连接状态的用户设备均适用, 避免速度较快 的用户设备切换 /选择到提升容量的较小小区, 避免用户设备进行不必要的测量, 降 低了能量开销。
在本实施例中, 该信息包括较小小区标识、 和 /或较小小区所在频率。 其中, 可 视不同的情况, 该标识较小小区的信息不同。
在本实施例中,处理单元 502用于在用户设备处于空闲状态进行小区选择或重选 /小区发现时, 或者在用户设备处于连接状态进行小区发现和 /或测量时, 不将信息中 标识的较小小区作为候选小区。
在该信息中, 标识的较小小区不包括用于提供覆盖的较小小区。这样可避免速度 较快的用户设备连接中断。
由上述实施例可知,对于空闲状态和连接状态的用户设备均可使用该信息进行小 区选择或重选或小区发现、 或者小区发现和 /或测量。
此外, 对于用户设备的空闲状态和连接状态还可分别对应第一信息和第二信息, 在这种情况下,接收单元 501具体用于分别或同时接收网络侧发送的用于标识较小小 区的第一信息和第二信息; 处理单元 502用于在用户设备处于空闲状态时, 基于第一 信息进行小区选择或重选或发现; 在用户设备处于连接状态时, 基于第二信息进行小 区发现和 /或测量。
在本实施例中, 该装置可为用户设备, 如手机、 PDA、 笔记本电脑等移动终端。 由上述实施例可知,对处于空闲或连接状态的用户设备均可使用网络侧下发的信 息进行小区重选或选择或小区发现, 或者进行小区发现和 /或测量; 在处理时, 将用 于标识较小小区的信息排除在候选小区之外, 可避免速度较快的用户设备切换 /选择 到提升容量的较小小区, 避免用户设备进行不必要的测量, 降低了能量开销。 另外, 在该标识较小小区的标识中不包括提供覆盖的较小小区,避免速度较快的用户设备连 接中断。
图 6是本发明实施例 5的增强异构网移动性的装置。该装置包括:发送单元 601, 发送单元 601用于将包括用于标识较小小区的信息通知用户设备;其中该用于标识较 小小区的信息用于供用户设备基于信息进行小区选择或重选或小区发现、或者进行小 区发现和 /或测量。
在本实施例中, 该装置可为网络侧实体, 如基站或者 0AM等功能实体。
如图 6所示, 该装置还可包括: 配置单元 600, 配置单元 600用于配置用于标识 较小小区的信息。其中, 网络侧可根据网络部署情况、 小区负载情况等合理设置该信 息。
在本实施例中, 网络侧可为处于空闲状态和连接状态的用户设备 UE分别配置对 应的第一信息和第二信息。在这种情况下, 配置单元 600用于分别配置在用户设备处 于空闲状态和连接状态时使用的第一信息和第二信息;并且发送单元 601用于将第一 信息和第二信息一起或者分别通知用户设备。
在本实施例中, 可通过广播或专用信令的方式向用户设备发送该信息, 或者通过 广播的方式发送该第一信息, 通过专用信息发送第二信息, 反之亦然。 这样, 该发送 单元 601 用于将第一信息和第二信息通过广播或专用信令的方式通知用户设备; 或 者, 用于将第一信息通过广播的方式通知用户设备, 将第二信息通过用户专用信令通 知用户设备; 或者, 用于将第二信息通过广播的方式通知用户设备, 将第一信息通过 用户专用信令通知用户设备。
在本实施例中, 根据实际情况, 该信息可包括较小小区标识、 和 /或较小小区所 在频率。
由上述实施例可知, 网络侧可根据网络部署情况、小区负载情况等合理设置该信 息, 使得该 UE基于该信息进行小区选择或重选或发现、 小区发现和 /或测量; 对处于 任何状态的用户设备均适用; 避免速度较快的用户设备切换 /选择到提升容量的较小 小区, 避免用户设备进行不必要的测量, 降低了能量开销。 另外, 在该标识较小小区 的标识中不包括提供覆盖的较小小区, 避免速度较快的用户设备连接中断。
本发明实施例 6还提供一种异构网络系统, 该系统包括宏基站、至少一个微基站 和用户设备; 其中, 该宏基站和至少一个微基站用于向用户设备发送用于标识较小小 区的信息; 用户设备, 用于接收信息, 并在用于确定用户设备移动状态的值超过预设 值时, 基于该信息进行小区选择或重选或小区发现、 或者小区发现和 /或测量。
其中, 该宏基站和至少一个微基站包括上述实施例 5所述的装置; 该用户设备包 括上述实施例 6所述的装置。
本发明实施例还提供一种计算机可读程序,其中当在增强异构网移动性的装置中 执行程序时,程序使得计算机在用户设备中执行上述实施例 1至 3的异构网移动性增 强的方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中计算机可读 程序使得计算机在增强异构网移动性的装置中执行上述实施例 1至 3的异构网移动性 增强的方法。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。 本发 明涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实 现上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。本 发明还涉及用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash 存储 器等。
以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员应该清楚, 这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。

Claims

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1、 一种异构网移动性增强的方法, 所述方法包括:
用户设备接收网络侧发送的用于标识较小小区的信息;
在用于确定用户设备移动状态的值超过预设值时,所述用户设备基于所述信息进 行小区选择或重选或小区发现、 或者小区发现和 /或测量。
2、 根据权利要求 1所述的方法, 其中, 所述信息包括较小小区标识、 和 /或较小 小区所在频率。
3、 根据权利要求 1所述的方法, 其中, 所述用户设备基于所述信息进行小区选 择或重选或小区发现、 或者小区发现和 /或测量, 包括:
在所述用户设备处于空闲状态进行小区选择或重选或小区发现时,或者在所述用 户设备处于连接状态进行小区发现和 /或测量时, 不将所述信息中标识的较小小区作 为候选小区。
4、 根据权利要求 1或 2或 3所述的方法, 其中, 所述信息中标识的较小小区不 包括用于提供覆盖的较小小区。
5、 根据权利要求 1所述的方法, 其中, 所述用户设备接收网络侧发送的用于标 识较小小区的信息, 包括:
分别或同时接收网络侧发送的用于标识较小小区的第一信息和第二信息; 并且在所述用户设备处于空闲状态时,基于所述第一信息进行小区选择或重选或 小区发现; 在所述用户设备处于连接状态时, 基于所述第二信息进行小区发现和 /或
6、 一种异构网移动性增强的方法, 所述方法包括:
将用于标识较小小区的信息通知用户设备;所述用于标识较小小区的信息用于供 所述用户设备基于所述信息进行小区选择或重选或小区发现、 或者进行小区发现和 / 或测量。
7、 根据权利要求 6所述的方法, 其中, 所述方法还包括: 配置所述用于标识较 小小区的信息。
8、 根据权利要求 7所述的方法, 其中, 所述配置用于标识较小小区的信息, 包 括: 分别配置在所述用户设备处于空闲状态和连接状态时使用的第一信息和第二信 息;
并且所述将标识较小小区的信息通知用户设备, 包括: 将所述第一信息和第二信 息同时或者分别通知所述用户设备。
9、 根据权利要求 8所述的方法, 其中, 将所述第一信息和第二信息通过广播的 方式或专用信令的方式通知用户设备; 或者,
将所述第一信息通过广播的方式通知所述用户设备,将所述第二信息通过用户专 用信令通知所述用户设备; 或者,
将所述第二信息通过广播的方式通知所述用户设备,将所述第一信息通过用户专 用信令通知所述用户设备。
10、 根据权利要求 6或 7所述的方法, 其中, 所述信息包括较小小区标识、 和 / 或较小小区所在频率。
11、 根据权利要求 6或 7所述的方法, 其中, 所述信息中标识的较小小区不包括 用于提供覆盖的较小小区。
12、 一种增强异构网移动性的装置, 包括:
接收单元, 所述接收单元用于接收网络侧发送的用于标识较小小区的信息; 处理单元, 所述处理单元用于当用于确定用户设备移动状态的值超过预设值时, 基于所述信息进行小区选择或重选或小区发现、 或者小区发现和 /或测量。
13、 根据权利要求 12所述的装置, 其中, 所述信息包括较小小区标识、 和 /或较 小小区所在频率。
14、 根据权利要求 12所述的装置, 其中, 所述处理单元包括: 用于在所述用户 设备处于空闲状态进行小区选择或重选或小区发现时,或者在所述用户设备处于连接 状态进行小区发现和 /或测量时, 不将所述信息中标识的较小小区作为候选小区。
15、 根据权利要求 12或 13或 14所述的装置, 其中, 所述信息中标识的较小小 区不包括用于提供覆盖的较小小区。
16、 根据权利要求 12或 13或 14所述的装置, 其中, 所述接收单元包括用于分 别或同时接收网络侧发送的用于标识较小小区的第一信息和第二信息;
并且所述处理单元包括: 用于在所述用户设备处于空闲状态时, 基于所述第一信 息进行小区选择或重选 /或小区发现; 在所述用户设备处于连接状态时, 基于所述第 二信息进行小区发现和 /或测量。
17、 一种增强异构网移动性的装置, 所述装置包括:
发送单元, 所述发送单元用于将包括用于标识较小小区的信息通知用户设备; 所 述用于标识较小小区的信息用于供所述用户设备基于所述信息进行小区选择或重选 或小区发现、 或者进行小区发现和 /或测量。
18、 根据权利要求 17所述的装置, 其中, 所述装置还包括:
配置单元, 所述配置单元用于配置所述用于标识较小小区的信息。
19、 根据权利要求 17或 18所述的装置, 其中, 所述配置单元包括: 分别配置在 所述用户设备处于空闲状态和连接状态时使用的第一信息和第二信息;
并且所述发送单元包括:用于将所述第一信息和第二信息同时或者分别通知所述 用户设备。
20、 根据权利要求 19所述的装置, 其中, 所述发送单元包括: 将所述第一信息 和第二信息通过广播或用户专用的方式通知用户设备; 或者,
用于将所述第一信息通过广播的方式通知所述用户设备,将所述第二信息通过用 户专用信令通知所述用户设备; 或者,
用于将所述第二信息通过广播的方式通知所述用户设备,将所述第一信息通过用 户专用信令通知所述用户设备。
21、 根据权利要求 17或 18所述的装置, 其中, 所述信息包括较小小区标识、 和 /或较小小区所在频率。
22、 一种网络系统, 包括宏基站、 至少一个微基站和用户设备;
所述宏基站和至少一个微基站用于向所述用户设备发送用于标识较小小区的信 息;
所述用户设备, 用于接收所述信息, 并在用于确定用户设备移动状态的值超过预 设值时, 基于所述信息进行小区选择或重选 /小区发现、 或者小区发现和 /或测量。
23、 根据权利要求 22所述的系统, 其中, 所述宏基站和至少一个微基站包括权 利要求 17至 21的任一项权利要求所述的装置; 所述用户设备包括权利要求 12至 16 的任一项权利要求所述的装置。
24、一种计算机可读程序,其中当在增强异构网移动性的装置中执行所述程序时, 所述程序使得计算机在所述用户设备中执行如权利要求 1或 11的任一项权利要求所 述的异构网移动性增强的方法。
25、一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算 机在增强异构网移动性的装置中执行如权利要求 1至 11的任一项权利要求所述的异 构网移动性增强的方法。
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