WO2010108358A1 - Csg小区选择/重选方法和装置 - Google Patents

Csg小区选择/重选方法和装置 Download PDF

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Publication number
WO2010108358A1
WO2010108358A1 PCT/CN2009/074034 CN2009074034W WO2010108358A1 WO 2010108358 A1 WO2010108358 A1 WO 2010108358A1 CN 2009074034 W CN2009074034 W CN 2009074034W WO 2010108358 A1 WO2010108358 A1 WO 2010108358A1
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Prior art keywords
cell
csg cell
csg
searched
camping
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PCT/CN2009/074034
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English (en)
French (fr)
Inventor
刘海军
黄波
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中兴通讯股份有限公司
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Publication of WO2010108358A1 publication Critical patent/WO2010108358A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/045Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • the present invention relates to the field of communications, and in particular, to a Closed Subscriber Group (CSG) cell selection/reselection method and apparatus.
  • CSG Closed Subscriber Group
  • the 3rd Generation Partnership Project (3GPP) launched the Long Term Evolution (LTE) project, and the evolved access technology (Evolved- Universal Terrestrial Radio Access (E-UTRA) and Evolved-Universal Terrestrial Radio Access Network (E-UTRAN), and Internet-wide protocol (Internet Protocol)
  • LTE Long Term Evolution
  • E-UTRA evolved- Universal Terrestrial Radio Access
  • E-UTRAN Evolved-Universal Terrestrial Radio Access Network
  • Internet Protocol Internet Protocol
  • SAE System Architecture Evolution
  • LTE is an Orthogonal Fre-quency Division Multiplexing (OFDM)/Single Carrier-Frequency Division Multiple Access (SC-FDMA) system.
  • the core technologies, the main performance objectives of the 3GPP LTE project include: The peak bandwidth of downlink 100Mbps and uplink 50Mbps can be provided in the 20MHz spectrum bandwidth; Improve the performance of the cell edge users; Increase the cell capacity; Reduce the system delay, one-way transmission inside the user plane The delay is less than 5ms, the control plane transition time from sleep state to active state is less than 50ms, and the migration time from the resident state to the active state is less than 100ms; the cell coverage supporting lOOKm radius; capable of providing high-speed mobile users for 350Km/h > 100kbps access service; support paired or unpaired spectrum, and flexible configuration of multiple bandwidths from 1.25 MHz to 20 MHz.
  • a type of cell is introduced in the 3GPP UE Idle (Idle) state E-UTRA processing protocol: a closed subscriber group cell (CSG Cell).
  • CSG Cell closed subscriber group cell
  • the CSG whitelist that is sent by the system is pre-stored in the UE that has opened the CSG service.
  • ID The identity of the CSG cell that allows the UE to camp is recorded in the whitelist.
  • the purpose of the GPP to introduce the CSG cell is to allow the UE that only enables the CSG service to camp on the cell and initiate the service in the CSG cell, for example, to play a service restriction in the high traffic cell, so that the CSG cell can be regarded as It is an implementation method for flexible control of UE access on the network side.
  • the UE does not select and reselect the CSG cell, which may cause inconvenience to the actual application of the CSG service.
  • SUMMARY OF THE INVENTION The present invention has been made in view of the problem that a UE cannot perform selection and reselection of a CSG cell, and a main object of the present invention is to provide a cell selection and reselection scheme to solve the related art.
  • a CSG cell selection method includes: when the user chooses to camp on the CSG cell, the UE searches for an available CSG cell; if it is determined that the searched CSG cell is a pre-designated CSG cell, and the signal quality of the CSG cell When the predetermined requirement is met, the UE selects the CSG cell as a camping cell.
  • a CSG cell reselection method is provided.
  • the CSG cell reselection method includes: in the case that the UE initiates a cell reselection evaluation process, the UE searches for an available CSG cell; if the UE camps on the currently camped cell exceeds a predetermined time, and searches The foregoing CSG cell is a pre-designated CSG cell, and the signal quality of the CSG cell satisfies a predetermined requirement, and the CSG cell is selected as a new camping cell.
  • a CSG cell selection apparatus is provided.
  • the CSG cell selection apparatus includes: a search module, a first determination module, a second determination module, and a selection module.
  • the search module is configured to search for an available CSG cell; the first determining module is configured to determine whether the CSG cell that is searched by the search module is a pre-designated CSG cell; and a second determining module, configured to determine, by the search module, Whether the signal quality of the CSG cell meets the predetermined requirement; the selecting module is configured to: when the first determining module determines that the searched CSG cell is a pre-designated CSG cell, and the second determining module determines the signal of the searched CSG cell If the quality meets the predetermined requirement, the CSG cell is selected as the camping cell according to the user's selection.
  • a CSG cell reselection apparatus is provided.
  • the CSG cell reselection apparatus includes: a search module, a first determination module, a second determination module, a third determination module, and a selection module.
  • the search module is configured to search for an available CSG cell
  • the first determining module is configured to determine whether the camping time of the UE in the current camping cell exceeds a predetermined time.
  • the second determining module is configured to determine, by using the search module, Whether the CSG cell is a pre-designated CSG cell; the third determining module is configured to determine whether the signal quality of the CSG cell that is searched by the search module meets a predetermined requirement; and the selecting module is configured to determine, at the first determining module, that the current camping If the camping time of the cell exceeds a predetermined time, the second determining module determines that the searched CSG cell is a pre-designated CSG cell, and the third determining module determines that the signal quality of the searched CSG cell meets a predetermined requirement, The CSG cell is selected as a camping cell.
  • the UE selects a CSG cell that is pre-designated and whose signal quality meets the requirements as a camping cell in the searched available CSG cell, and can solve the problem that the CSG cell selection and reselection cannot be performed in the related art.
  • the problem is that the UE can perform effective CSG cell selection, which facilitates flexible application of the CSG service.
  • FIG. 2 is a flowchart of a CSG cell selection method according to Embodiment 1 of the method of the present invention
  • 3 is a structural block diagram of a CSG cell selection apparatus according to Embodiment 1 of the apparatus of the present invention
  • 4 is a flowchart of a CSG cell reselection method according to Embodiment 2 of the method of the present invention
  • FIG. 5 is a structural block diagram of a CSG cell reselection apparatus according to Embodiment 2 of the apparatus of the present invention
  • the embodiment of the present invention provides a CSG cell selection scheme.
  • the UE is available for search in the search for the CSG cell selection and reselection.
  • selecting a CSG cell that is pre-specified and the signal quality meets the requirements as a camping cell can solve the problem that the CSG cell selection cannot be performed in the related art, thereby enabling the UE to perform effective CSG cell selection;
  • the embodiment also provides a CSG cell reselection scheme, which enables the UE to perform reselection of the CSG cell.
  • FIG. 1 is a schematic diagram of processing performed by a UE in performing PLMN selection, cell selection, and reselection in a 3GPP UE Idle protocol in the related art.
  • the process mainly includes the following three steps: 1. Public Land Mobile Network (PLN) selection: The UE searches for available PLMNs manually or automatically to obtain PLMNs. The available list is reported to the non-access stratum, and the non-access stratum selects the PLMN according to the priority and the cell signal. 2.
  • the cell selection the UE measures the cell signal (wireless measurement), and selects the PLMN according to the cell selection criterion. A suitable cell, which reads system information (non-access stratum (NAS) control), resides in the cell; 3.
  • Location registration The non-access stratum initiates a location registration process as needed.
  • the UE After the UE selects the cell and camps in the cell, it searches for a higher priority PLMN or cell according to the need, for example, in the case of a registration area change, or according to the service request sent by the user.
  • the searched cell satisfies certain conditions, and the UE chooses to camp on the cell. This process is called cell reselection.
  • the UE must meet the S standard when selecting a cell, that is, the UE measures the cell signal quality, When the cell signal quality reaches the minimum call requirement, the UE may select the cell.
  • the UE must meet the R standard when performing co-frequency cell reselection, that is, the UE calculates the cell level R according to the cell signal quality. If the R of the cell is greater than the R of the current camping cell of the UE, the UE selects the cell as the UE. New resident cell. It should be noted that, if not conflicting, the embodiments of the present invention and the various features in the embodiments may be combined with each other, and are all within the protection scope of the present invention. The embodiments of the present invention are described in the following with reference to the drawings, and the preferred embodiments described herein are intended to illustrate and explain the invention.
  • Method Embodiment 1 In the embodiment of the present invention, a CSG cell selection method is provided. The method is for processing if the user chooses to camp on a CSG cell.
  • 2 is a flowchart of a CSG cell selection method according to Embodiment 1 of the method of the present invention, and shows a flow of a CSG cell selection method according to Embodiment 1 of the method of the present invention. As shown in FIG. 2, the method according to the present invention is implemented.
  • the CSG cell selection method of the first method includes the following steps (step S202 to step S204): Step S202: The UE searches for an available CSG cell; Step S204, if the UE determines that the searched CSG cell is a pre-designated CSG cell, and searches for If the signal quality of the CSG cell meets the predetermined requirement, the searched CSG cell is selected as the camping cell.
  • the predetermined requirement may be a minimum call quality requirement.
  • the cell selection manual mode is provided when the cell is selected, and two types of cells can be selected for the user to select, one is a CSG cell, and the other is a non-CSG. Community.
  • the operation of determining whether the searched CSG cell is a pre-designated CSG cell may specifically include: if the user equipment (User Equipment, can be called If the cell identifier of the CSG cell of the searched CSG cell is found in the whitelist of the UE, the CSG cell is determined to be a pre-designated CSG cell, where the whitelist is used.
  • Specifying a CSG cell available to the UE wherein a cell identifier of at least one pre-designated CSG cell is pre-stored.
  • the searched CSG cell is a cell in the CSG white list of the UE, and the searched signal quality of the CSG cell satisfies a predetermined requirement, if the user chooses to camp on the CSG cell, the searched CSG cell is selected.
  • the signal quality of the CSG cell satisfies a predetermined requirement and can be determined according to the signal strength of the cell.
  • the request which may also be referred to as the S standard, is that the UE searches for the available non-CSG cell, selects the non-CSG cell whose signal quality meets the predetermined requirement as the camping cell, and reports the information of the non-CSG cell to the non-access stratum.
  • the UE camps on the non-CSG cell according to the conventional cell selection procedure.
  • the CSG cell is a special cell that is flexibly controlled by the operator to access the UE, therefore, In the above case, if the UE camps on a non-CSG cell fails, the UE can camp on any cell. With the method provided in this embodiment, the UE selects a pre-designated CSG cell with the required signal quality as the camping cell in the searched available CSG cell, so that the UE can perform effective CSG cell selection, which facilitates the CSG service. Application, fills in the gaps in related technologies. Based on the above description, the process of the specific implementation of the embodiment will be described below.
  • the cell selection may be performed according to the process shown in FIG. 1 to camp on the appropriate cell.
  • the cell searched by the UE is a CSG cell, it cannot camp on the CSG cell, and searches for and selects another suitable cell.
  • the UE may select to camp on the CSG cell according to the needs in the cell selection process, or The camping is selected to camp on a non-CSG cell, and cell selection can be done in a manually selected or automatically selected manner.
  • Step 1 Select whether to camp on the CSG cell. If camping on the CSG cell, the process proceeds to step 2. If camping on the non-CSG cell, the process proceeds to step 7; Step 2 The UE searches for an available CSG cell. If the CSG cell can be searched, the process proceeds to step 3. Otherwise, the process proceeds to step 7.
  • Step 2 corresponds to the foregoing step S202.
  • Step 3 Determine whether the CSG cell is in the CSG white list. If the cell is a designated CSG cell, the process proceeds to step 4; if it is not the designated CSG cell, the process proceeds to step 7; Step 4, the UE measures the signal quality of the cell; Step 5, the UE determines the cell Whether the signal quality satisfies the S standard, that is, whether the signal quality of the cell satisfies the minimum call requirement, and if so, the process proceeds to step 6, otherwise, the process proceeds to step 7; step 6, the CSG cell is selected to reside. The cell, at this point, the processing ends. Steps 3 to 6 correspond to the above-described step S404.
  • Step 7 Search for an available non-CSG cell;
  • Step 8 Measure the signal quality of the non-CSG cell;
  • Step 9 Determine whether the signal quality of the non-CSG cell satisfies the S standard, if the process proceeds to Step 10, otherwise, process Step 11:
  • Step 10 Select the non-CSG cell as the camping cell; if it chooses to camp on the CSG cell in step 1, but does not search for the CSG cell in step 2, or the CSG cell searched in step 3 is not The specified CSG cell, or the signal quality of the searched cell in step 5 does not satisfy the S standard, so that the UE does not camp on the CSG cell but resides in the non-CSG cell, in which case the UE camps to the non-CSG.
  • Step 11 Select any cell as a camping cell.
  • the process of automatically selecting a CSG cell may include Step 2 to Step 11 above, and details are not described herein again.
  • the UE can flexibly select to camp on the CSG cell or the non-CSG cell, and automatically select the non-CSG cell as the camping cell when the CSG cell fails to be selected, or select the non-CSG cell. When it fails, any cell is selected as the camping cell.
  • Embodiment 1 of the present invention provides a CSG cell selection apparatus according to an embodiment of the present invention.
  • the CSG cell selection method provided in Embodiment 1 of the method may be implemented on the apparatus.
  • 3 is a structural block diagram of a CSG cell selection apparatus according to Embodiment 1 of the apparatus of the present invention, showing a structure of a CSG cell selection apparatus according to Embodiment 1 of the apparatus of the present invention, as shown in FIG.
  • the CSG cell selection device of the first example includes a search module 1, a first determination module 3, a second determination module 5, and a selection module 7. The function of the above modules will be described below.
  • the search module 1 is configured to search for an available CSG cell; preferably, the above step S202 can be implemented on the search module 1; the first determining module 3 is connected to the search module 1 for determining whether the CSG cell searched by the search module 1 is The second judging module 5 is connected to the search module 1 for determining whether the signal quality of the CSG cell searched by the search module 1 satisfies a predetermined requirement; preferably, the predetermined requirement is a minimum call requirement; 7.
  • the first determining module 3 and the second determining module 5 are configured to determine, in the first determining module 3, that the searched CSG cell is a pre-designated CSG cell, and the second determining module 5 determines the searched CSG cell.
  • the searched CSG cell is selected as the camping cell according to the user selection (ie, the user chooses to camp on the CSG cell).
  • the foregoing step S204 can be implemented by using the first determining module 3, the second determining module 5, and the selecting module 7.
  • the search module 1 first searches for an available CSG cell, and the first determining module 3 determines whether the searched cell is a cell specified in the CSG whitelist, and the second determining module 5 determines the searched Whether the signal quality of the cell meets the minimum call requirement (example For example, if the S criterion is satisfied, the first determining module 3 determines that the cell is the designated cell, and the second determining module 5 determines that the signal quality of the cell meets the minimum call requirement, and the selecting module 7 selects the cell as the camping cell.
  • an effective CSG cell selection can be performed by setting a search module, a first judging module, a second judging module, and a selecting module.
  • a CSG cell reselection method is provided. Before the CSG cell reselection method is performed, the present embodiment further provides two types of triggering conditions for the UE to perform the CSG cell reselection evaluation.
  • the two types of conditions are as follows: The first type, the UE internal trigger, may include but not limited to: The cell signal quality does not meet the requirement, and the predetermined cell reselection periodic timer expires; the second type, when the CSG information in the system broadcast information changes.
  • FIG. 4 is a flowchart of a CSG cell reselection method according to Embodiment 2 of the method of the present invention, showing a flow of a CSG cell reselection method according to Embodiment 2 of the method of the present invention, as shown in FIG. 4, according to the present invention.
  • the CSG cell reselection method of the second embodiment includes the following steps (step S402 to step S404): Step S402: In case the UE initiates cell reselection, the UE searches for an available CSG cell; Step S404, if the UE is currently camped The camped time of the cell exceeds a predetermined time, and the searched CSG cell is a pre-designated CSG cell, and the signal quality of the CSG cell satisfies a predetermined requirement, and the searched arrival CSG cell is selected as a new camped cell.
  • the predetermined time may be 1 second.
  • Case 1 If the current camping cell is a non-CSG cell, and the signal quality of the searched CSG cell satisfies the S standard, The CSG cell is searched as a new camping cell; Case 2, if the current camping cell is a CSG cell, the current camping cell and the searched CSG cell are co-frequency cells, and according to the R standard, the CSG cell is searched according to the R standard.
  • R index is higher than current
  • the R index of the camped cell, the searched CSG cell is used as the new camped cell;
  • Case 3 if the current camped cell is a CSG cell, the current camped cell and the searched CSG cell are inter-frequency cells, and the search is performed.
  • the CSG cell has a higher priority than the current camped cell, and the searched CSG cell is used as a new camped cell.
  • Case 4 If the current camping cell is a CSG cell, and the signal quality of the currently camping cell does not satisfy the predetermined minimum threshold, the UE searches for available cells.
  • the UE If a non-CSG cell is found, and the non-CSG cell satisfies the cell selection S standard, the UE reselects the non-CSG cell and reports the information of the non-CSG cell to the non-access stratum. In addition, in the process of performing cell reselection described above, if it is determined that the searched CSG cell is not a pre-designated CSG cell, the UE cannot select or reselect the cell. When the CSG related information in the UE or the system information changes, the non-access stratum needs to notify the UE to update the CSG cell 4 selection list information.
  • the UE when a UE that has camped for a predetermined time in the current cell needs to reselect a cell, among the available CSG cells that are searched, select a CSG cell that is pre-designated and whose signal quality meets the requirements as a resident.
  • the cell enables the UE to perform effective CSG cell selection. Based on the above description, the process of the specific implementation of the embodiment will be described below.
  • the UE triggers the cell reselection evaluation process when the UE internally triggers, for example, periodically triggering CSG cell reselection, or the CSG related information in the system information is changed.
  • the same frequency and different frequency measurement rules in the normal cell reselection evaluation process may be referred to determine, if the measurement rule is met, the same Frequency, inter-frequency cell measurement.
  • the CSG cell reselection is divided into the following three modes: Mode 1: From the non-CSG cell to the CSG cell: If the current camped cell of the UE is a non-CSG cell, the searched CSG The cell satisfies the cell selection S standard, and the UE camps on the current camped cell for more than 1 second and reselects to the CSG cell; the mode 1 can correspond to the foregoing situation 1; the second mode, the CSG cell reselection: if the UE is currently The camped cell is a CSG cell, and the searched CSG cell satisfies the cell selection S standard, and the UE stays in the original CSG cell for more than At 1 second, it can be processed according to the same-frequency cell reselection or the inter-frequency cell reselection: the same-frequency cell: If the current camped cell and the searched cell are the same-frequency cells, the R is reselected according to the
  • the intra-frequency cell reselection may correspond to the above case 2; If the current camped cell and the searched cell are inter-frequency cells, determining whether to reselect to the new CSG cell according to the inter-frequency cell priority in the E-UTRAN; the inter-frequency inter-cell reselection may correspond to the foregoing case 3; 3.
  • the UE may reselect to the non-CSG cell.
  • this threshold may be specified in the system message, or may be collapsed to no The S standard that satisfies the cell selection
  • the UE may reselect to the non-CSG cell.
  • the searched non-CSG cell signal satisfies the cell selection S standard
  • the cell is reselected to the non-CSG cell, and the information of the non-CSG cell is reported to the non-access stratum.
  • a CSG cell reselection apparatus is provided.
  • the CSG cell reselection method provided in Embodiment 2 of the method may be implemented on the apparatus.
  • FIG. 5 is a structural block diagram of a CSG cell reselection apparatus according to Embodiment 2 of the apparatus of the present invention, showing a structure of a CSG cell reselection apparatus according to Embodiment 2 of the apparatus of the present invention, as shown in FIG. 5, according to the present invention.
  • the CSG cell reselection apparatus of the second embodiment of the apparatus includes: a search module 2, a first judging module 4, a second judging module 6, a third judging module 8, and a selecting module 10. The function of the above modules will be described in detail below.
  • the search module 2 is configured to search for an available CSG cell; preferably, the step S402 may be implemented on the search module 2; the first determining module 4 is configured to determine whether the camping time of the UE in the current camping cell exceeds.
  • the second judging module 6 is connected to the search module 2 for determining whether the CSG cell searched by the search module 2 is a pre-designated CSG cell.
  • the third judging module 8 is connected to the search module 2 for judging the search.
  • the selection module 10 is connected to the first determining module 4, the second determining module 6, and the third determining module 8 for determining that the current determining module 4 is currently If the camping time of the camping cell exceeds the predetermined time, the second determining module 6 determines that the searched CSG cell is a pre-designated CSG cell, and the third determining module 8 determines that the signal quality of the searched CSG cell meets the predetermined requirement.
  • the searched CSG cell is selected as a camping cell.
  • the above step S404 can be implemented on the first determining module 4, the second determining module 6, the third determining module 8, and the selecting module 10.
  • the search module 2 first searches for an available CSG cell, and the first determining module 4 determines whether the dwell time in the current camping cell exceeds a predetermined time (for example, 1 second), and second.
  • the determining module 6 determines whether the searched CSG cell is a pre-designated CSG cell in the CSG whitelist, and the third determining module 8 determines whether the signal quality of the searched CSG cell meets the predetermined requirement, in the first determining module 4, the second
  • the selection module 10 selects the searched module as a new resident cell.
  • FIG. 6 shows the structure of a CSG cell reselection apparatus according to a preferred embodiment of the present invention. As shown in FIG.
  • the apparatus further includes: a timer 12, connected to the search module 2, for Counting in a predetermined period, starting the search module 2 to search after the time is up, and the timer is cleared to restart the timing; the decision module 14 is connected to the search module 2, for determining whether the current cell signal quality does not meet the requirement or Whether the CSG information in the system broadcast information changes, if the judgment result is that the request is not satisfied or the CSG information in the system broadcast information changes, the search module 2 is started to perform the search. With the apparatus shown in Fig. 6, CSG cell reselection can be performed while the conditions are satisfied.
  • the UE selects a pre-designated CSG cell with the required signal quality as the camping cell in the searched available CSG cell, and can solve the problem that the CSG cell cannot be performed in the related art.
  • the problem of choice thereby enabling the UE to make an effective CSG cell selection.
  • the UE selects a pre-designated CSG cell with the required signal quality as the camping cell, so that the UE can perform the effective. CSG cell selection.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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Description

CSG小区选择 /重选方法和装置
技术领域 本发明涉及通信领域,具体地, 涉及一种闭合用户群( Closed Subscriber Group , 筒称为 CSG ) 小区选择 /重选方法和装置。 背景技术 目前 , 移动通信技术面临着为用户提供更高的数据速率、 为网络提供更 好的覆盖和更大的容量的问题。 为解决上述问题, 第三代合作伙伴计划 ( 3rd Generation Partnership Project,筒称为 3GPP )启动了无线接入网长期演进项目( Long Term Evolution, 筒称为 LTE ), 演进的接入技术 ( Evolved- Universal Terrestrial Radio Access , 筒称为 E-UTRA ) 和演进的接入网络 ( Evolved- Universal Terrestrial Radio Access Network ,筒称为 E-UTRAN ),以及面向全网络十办议 ( Internet Protocol , 筒称为 IP ) 的分组域 ^核心网演进项目 ( System Architecture Evolution, 筒称 为 SAE ), 借助上述技术, 通过从无线接口到核心网络的持续演进和增强, 能够满足运营商和用户不断增长的需求, 从而提供更好的网络技术支持。
LTE 是一种以正交频分复用技术 ( Orthogonal Fre-quency Division Multiplexing,筒称为 OFDM )/单载波频分复用技术( Single Carrier- Frequency Division Multiple Access, 筒称为 SC-FDMA ) 为核心的技术, 3 GPP LTE项 目的主要性能目标包括: 在 20MHz频谱带宽能够提供下行 100Mbps、 上行 50Mbps 的峰值速率; 改善小区边缘用户的性能; 提高小区容量; 降低系统 延迟, 用户平面内部单向传输时延低于 5ms, 控制平面从睡眠状态到激活状 态迁移时间低于 50ms, 从驻留状态到激活状态的迁移时间小于 100ms; 支持 lOOKm半径的小区覆盖; 能够为 350Km/h高速移动用户提供 > 100kbps的接 入服务; 支持成对或非成对频谱, 并可灵活配置 1.25 MHz到 20MHz多种带 宽。
3GPP UE空闲( Idle )状态 E-UTRA处理协议中引入了一种类型的小区: 闭合用户群小区 (CSG Cell )。 此类小区只允许开通了 CSG业务的用户设备 驻留, 即, 在开通了 CSG业务的 UE中预存了系统下发的 CSG白名单, 该 白名单中记录了允许该 UE驻留的 CSG小区的标识 ( ID )。
3 GPP引入 CSG小区的目的是在 CSG小区中只允许开通 CSG业务的 UE 驻留该小区并发起业务, 例如, 在高话务量小区起到业务限制的作用, 这样, 可以将 CSG小区看成是网络侧灵活控制 UE接入的一种实现方式。 但是, 在相关技术中, 并没有 UE进行 CSG小区的选择和重选方案, 从而会对 CSG业务的实际应用带来不便。 发明内容 考虑到相关技术中存在的 UE无法进行 CSG小区的选择和重选的问题 而做出本发明, 为此,本发明的主要目的在于提供一种小区选择和重选方案, 以解决相关技术中的上述问题至少之一。 根据本发明的一个方面 , 提供了一种 CSG小区选择方法。 根据本发明的 CSG小区选择方法包括:在用户选择驻留在 CSG小区的 情况下, UE搜索可用的 CSG小区; 如果判断搜索到的 CSG小区为预先指 定的 CSG小区 ,并且该 CSG小区的信号质量满足预定要求,则 UE将该 CSG 小区选择为驻留小区。 才艮据本发明的另一个方面, 提供了一种 CSG小区重选方法。 才艮据本发明的 CSG小区重选方法包括: 在 UE启动小区重选评估过程 的情况下 , UE搜索可用的 CSG小区; 如果 UE在当前驻留小区的驻留时间 超过了预定时间 , 并且搜索到的上述 CSG小区是预先指定的 CSG小区 , 以 及该 CSG小区的信号质量满足预定要求, 将该 CSG小区选择为新的驻留小 区。 根据本发明的又一个方面, 提供了一种 CSG小区选择装置。 根据本发明的 CSG小区选择装置包括: 搜索模块、 第一判断模块、 第 二判断模块和选择模块。 其中, 搜索模块, 用于搜索可用的 CSG小区; 第一 判断模块,用于判断搜索模块搜索到的上述 CSG小区是否为预先指定的 CSG 小区; 第二判断模块, 用于判断搜索模块搜索到的上述 CSG小区的信号质量 是否满足预定要求; 选择模块, 用于在第一判断模块判断搜索到的 CSG小区 是预先指定的 CSG小区、 以及第二判断模块判断搜索到的 CSG小区的信号 质量满足预定要求的情况下 , 根据用户选择将 CSG小区选择为驻留小区。 才艮据本发明的再一个方面, 提供了一种 CSG小区重选装置。 根据本发明的 CSG小区重选装置包括: 搜索模块、 第一判断模块、 第 二判断模块、 第三判断模块和选择模块。 其中, 搜索模块, 用于搜索可用的 CSG小区; 第一判断模块, 用于判断 UE在当前驻留小区的驻留时间是否超 过了预定时间; 第二判断模块, 用于判断搜索模块搜索到的上述 CSG小区是 否为预先指定的 CSG小区; 第三判断模块, 用于判断搜索模块搜索到的上述 CSG小区的信号质量是否满足预定要求; 选择模块, 用于在第一判断模块判 断在当前驻留小区的驻留时间超过了预定时间、 第二判断模块判断搜索到的 上述 CSG小区是预先指定的 CSG小区、 以及第三判断模块判断搜索到的上 述 CSG小区的信号质量满足预定要求的情况下, 将该 CSG小区选择为驻留 小区。 通过本发明的上述技术方案 , UE在搜索到的可用的 CSG小区中, 选择 一个预先指定并且信号质量符合要求的 CSG 小区作为驻留小区, 能够解决相 关技术中无法进行 CSG 小区选择和重选的问题, 从而使 UE 能够进行有效的 CSG小区选择, 便于 CSG业务的灵活应用。 本发明的其它特征和优点将在随后的说明书中阐述, 并且, 部分地从说 明书中变得显而易见, 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结构来实 现和获得。 附图说明 此处所说明的附图用来提供对本发明的进一步理解 ,构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1是相关技术中 3GPP UE Idle协议中 UE进行 PLMN选择、 小区选 择和重选的处理示意图; 图 2是才艮据本发明方法实施例一的 CSG小区选择方法的流程图; 图 3是才艮据本发明装置实施例一的 CSG小区选择装置的结构框图; 图 4是才艮据本发明方法实施例二的 CSG小区重选方法的流程图; 图 5是才艮据本发明装置实施例二的 CSG小区重选装置的结构框图; 图 6是才艮据本发明优选实施例的 CSG小区重选装置的结构框图。 具体实施方式 功能相克述 考虑到相关技术中, UE无法进行 CSG小区选择和重选的问题, 本发明 实施例提供了一种 CSG小区选择方案, 在本发明实施例中 , UE在搜索到的 可用的 CSG小区中, 选择一个预先指定并且信号质量符合要求的 CSG小区 作为驻留小区, 能够解决相关技术中无法进行 CSG小区选择的问题,从而使 UE能够进行有效的 CSG小区选择; 此外, 本发明实施例还提供了一种 CSG 小区重选方案, 能够使 UE进行 CSG小区的重选。 在对本实施例进行说明前,先对 3GPP UE Idle协议中 UE进行小区选择 的过程进行说明, 具体可以参见图 1。 图 1是相关技术中 3GPP UE Idle协议中 UE进行 PLMN选择、 小区选 择和重选的处理示意图。 如图 1所示, 该处理过程主要包括以下三个步骤: 一、 公用陆地移动网 ( Public Land Mobile Network, 筒称为 PLMN )选 择: UE通过手动或者自动的方式, 搜索可用的 PLMN, 获得 PLMN可用列 表, 并上报给非接入层, 非接入层根据优先级及小区信号, 选定 PLMN; 二、 小区选择: UE测量小区信号(无线测量), 根据小区选择标准, 选 择该 PLMN下的合适小区 , 读取系统信息 (非接入层(Non- Access Stratum, 筒称为 NAS ) 控制), 驻留在该小区; 三、 位置注册: 非接入层根据需要, 发起位置注册过程。
UE选择了小区、 并在该小区中驻留之后, 还会根据需要, 例如, 在注 册区域变更的情况下, 或者才艮据用户发送的服务请求, 搜索更高优先级的 PLMN或者小区, 如果搜索到的小区满足一定条件, UE选择驻留到该小区, 此过程称为小区重选。 此外, UE在选择小区时必须满足 S标准, 即, UE测量小区信号质量, 当小区信号质量达到最低通话要求时, UE可以选择此小区。
UE在进行同频小区重选时必须满足 R标准 , 即, UE才艮据小区信号质 量计算出的小区等级 R, 如果该小区的 R大于 UE当前驻留小区的 R, 则 UE 选择该小区作为新的驻留小区。 需要说明的是, 如果不冲突, 本发明实施例以及实施例中的各个特征可 以相互结合, 均在本发明的保护范围之内。 下面结合附图对本发明的实施例进行说明 , 应当理解, 此处所描述的优 选实施例仅用于说明和解释本发明, 并不用于限定本发明。 需要说明的是, 在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统 中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但是在某些情况下, 可以 以不同于此处的顺序执行所示出或描述的步骤。 方法实施例一 居本发明实施例, 提供了一种 CSG小区选择方法。 该方法用于在用 户选择驻留在 CSG小区的情况下进行处理。 图 2是才艮据本发明方法实施例一的 CSG小区选择方法的流程图, 示出 了根据本发明方法实施例一的 CSG小区选择方法的流程, 如图 2所示,根据 本发明方法实施例一的 CSG小区选择方法包括以下步骤(步骤 S202至步骤 S204 ): 步骤 S202, UE搜索可用的 CSG小区; 步骤 S204, 如果 UE判断搜索到的 CSG小区是预先指定的 CSG小区 , 且搜索到的 CSG小区的信号质量满足预定要求, 则将搜索到的 CSG小区选 择为驻留小区。 优选地, 预定要求可以是最低通话质量要求。 下面详细说明上述处理的过程。 如果 UE中存在非空的 CSG白名单, 在本发明实施过程中, 小区选择 时提供小区选择手动模式, 可以给出两种类型的小区供用户选择, 一种为 CSG小区, 一种为非 CSG小区。 在用户选择驻留在 CSG小区的情况下 具体地, 在步骤 S204 中, 判断搜索到的 CSG小区是否为预先指定的 CSG小区的操作可以具体包括: 如果能够在用户设备(User Equipment, 筒 称为 UE ) 的白名单 (或称为 CSG白名单) 中查找到与搜索到的 CSG小区 的小区标识相同的小区标识 , 则判断搜索到的 CSG小区为预先指定的 CSG 小区, 其中, 白名单用于指定该 UE可用的 CSG小区, 其中预先存储有至少 一个预先指定的 CSG小区的小区标识。 当搜索到的 CSG小区为 UE的 CSG 白名单中的小区, 且搜索到的该 CSG小区的信号质量满足预定要求 , 则在用户选择驻留在 CSG小区的情况 下 , 将搜索到的 CSG小区选择为驻留小区。 其中, CSG 小区的信号质量满足预定要求可以根据该小区的信号强度 来判断。 此外, 执行上述步骤 S202至步骤 S204的过程中, 如果判断搜索到的 CSG小区不是白名单中预先指定的 CSG小区、和 /或搜索到的 CSG小区的信 号质量不满足预定要求(即, 最低通话要求, 也可以称为 S标准), 则 UE搜 索可用的非 CSG小区 , 将信号质量满足预定要求的非 CSG小区选择为驻留 小区, 并将该非 CSG小区的信息上报给非接入层。 在用户选择驻留在非 CSG小区的情况下 在该情况下 , UE按照常规的小区选择过程, 驻留到非 CSG小区, 由于 CSG小区是由运营商灵活控制 UE接入的特殊小区, 因此, 在上述情况下, 如果 UE驻留到非 CSG小区失败, 则 UE可以驻留到任意小区。 通过本实施例提供的方法, UE在搜索到的可用的 CSG小区中, 选择一 个预先指定并且信号质量符合要求的 CSG小区作为驻留小区,使 UE能够进 行有效的 CSG小区选择, 便于 CSG业务的应用, 填补了相关技术中的空白。 基于以上的描述, 下面对本实施例具体实施的过程进行说明。 在具体使用的过程中, 如果 UE未开通 CSG业务(即, UE的 CSG白 名单为空), 则可以按照如图 1所示的过程进行小区选择(重选), 驻留到合 适的小区。 在进行小区选择的过程中, 如果 UE搜索到的小区为 CSG小区, 不能驻留于此 CSG小区, 重新搜索并选择其它合适小区。 如果 UE开通了 CSG业务(即, CSG白名单非空, 该白名单中包含有 预先指定小区的小区标识), 则 UE在小区选择过程中 , 可以才艮据需要选择驻 留到 CSG小区, 或者选择驻留到非 CSG小区, 并且, 可以以手动选择或自 动选择的方式进行小区选择。 下面以手动选择过程为例进行说明: 步骤 1 , 选择是否驻留到 CSG小区, 如果驻留到 CSG小区, 处理进行 到步骤 2 , 如果驻留到非 CSG小区, 处理进行到步骤 7; 步骤 2, UE搜索可用的 CSG小区 , 如果能搜索到 CSG小区 , 处理进 行到步骤 3 , 否则, 处理进行到步骤 7; 步骤 2对应于上述步骤 S202; 步骤 3 , 判断该 CSG小区是否为 CSG白名单中指定的小区, 如果是指 定的 CSG小区, 则处理进行到步骤 4; 如果不是指定的 CSG小区, 则处理 进行到步骤 7; 步骤 4, UE测量该小区的信号质量; 步骤 5 , UE判断该小区的信号质量是否满足 S标准, 即, 判断该小区 的信号质量是否满足最低通话要求, 如果满足, 处理进行到步骤 6, 否则, 处理转入步骤 7; 步骤 6, 将该 CSG小区选择为驻留小区, 至此, 处理结束。 步骤 3至 步骤 6对应于上述步骤 S404。 步骤 7, 搜索可用的非 CSG小区; 步骤 8 , 测量该非 CSG小区的信号质量; 步骤 9 , 判断该非 CSG小区的信号质量是否满足 S标准, 如果满足处 理进行到步骤 10 , 否则, 处理转入步骤 11; 步骤 10, 将该非 CSG小区选择为驻留小区; 如果在步骤 1中选择驻留在 CSG小区 ,但步骤 2中没有搜索到 CSG小 区 , 或步骤 3中搜索到的 CSG小区不是指定的 CSG小区 , 或步骤 5中判断 搜索到小区的信号质量不满足 S标准, 从而导致 UE没有驻留到 CSG小区 , 而驻留在非 CSG小区, 在这种情况下, UE驻留到非 CSG小区时, 需要通 知非接入层, 将驻留的非 CSG小区的信息发送给非接入层。 步骤 11 , 选择任意小区为驻留小区。 自动选择 CSG小区的过程可以包括上述的步骤 2至步骤 11 , 这里不再 赘述。 通过上述步骤 1至步骤 11的处理过程,UE能够灵活地选择驻留到 CSG 小区或者非 CSG小区, 并且, 在选择 CSG小区失败时自动选择非 CSG小区 作为驻留小区, 或者在选择非 CSG小区失败时, 选择任意小区为驻留小区。 装置实施例一 根据本发明实施例 , 提供了一种 CSG小区选择装置 , 优选地 , 可以在 该装置上实施方法实施例一中提供的 CSG小区选择方法。 图 3是才艮据本发明装置实施例一的 CSG小区选择装置的结构框图, 示 出了根据本发明装置实施例一的 CSG小区选择装置的结构, 如图 3所示,根 据本发明装置实施例一的 CSG小区选择装置包括搜索模块 1、 第一判断模块 3、 第二判断模块 5、 选择模块 7。 下面说明上述模块的功能。 搜索模块 1 , 用于搜索可用的 CSG 小区; 优选地, 可以在搜索模块 1 上实施上述步骤 S202; 第一判断模块 3 ,连接至搜索模块 1 ,用于判断搜索模块 1搜索到的 CSG 小区是否为预先指定的 CSG小区; 第二判断模块 5,连接至搜索模块 1 ,用于判断搜索模块 1搜索到的 CSG 小区的信号质量是否满足预定要求; 优选地, 预定要求为最低通话要求; 选择模块 7, 连接至第一判断模块 3和第二判断模块 5, 用于在第一判 断模块 3判断搜索到的 CSG小区是预先指定的 CSG小区、 以及第二判断模 块 5判断搜索到的 CSG小区的信号质量满足预定要求的情况下,根据用户选 择(即用户选择驻留在 CSG小区),将该搜索到的 CSG小区选择为驻留小区。 优选地, 可以采用第一判断模块 3、 第二判断模块 5、 选择模块 7 实施上述 步骤 S204。 上述模块在具体实施的过程中, 首先由搜索模块 1搜索可用的 CSG小 区, 第一判断模块 3判断搜索到的该小区是否为 CSG白名单中指定的小区, 第二判断模块 5判断搜索到的该小区的信号质量是否满足最低通话要求 (例 如, 满足 S标准), 在第一判断模块 3判断该小区为指定的小区、 第二判断 模块 5判断该小区的信号质量满足最低通话要求时, 选择模块 7选择该小区 为驻留小区。 通过本实施例提供的装置, 通过设置搜索模块、 第一判断模块、 第二判 断模块、 选择模块, 能够进行有效的 CSG小区选择。 方法实施例二 根据本方法实施例, 提供了一种 CSG小区重选方法。 在执行 CSG小区重选方法之前, 本实施例还提供了 UE进行 CSG小区 重选评估的两类触发条件, 这两类条件如下: 第一类, UE 内部触发, 具体 可以包括但不限于: 当前小区信号质量不满足要求、 预定小区重选周期性定 时器超时; 第二类, 系统广播信息中的 CSG信息发生变化时。 图 4是才艮据本发明方法实施例二的 CSG小区重选方法的流程图 , 示出 了根据本发明方法实施例二的 CSG小区重选方法的流程, 如图 4所示,根据 本发明方法实施例二的 CSG小区重选方法包括以下步骤(步骤 S402至步骤 S404 ): 步骤 S402, 在 UE启动小区重选的情况下, UE搜索可用的 CSG小区; 步骤 S404 , 如果 UE在当前驻留小区的驻留时间超过了预定时间 , 并 且搜索到的 CSG小区是预先指定的 CSG小区 , 以及 CSG小区的信号质量满 足预定要求, 将搜索到达 CSG小区选择为新的驻留小区。 优选地, 预定时间 最氏可以为 1秒。 下面详细说明上述处理的过程。 搜索到可用的 CSG小区后,UE进行小区重选的过程可以分为以下四种 情况: 情况一, 如果当前驻留小区为非 CSG小区, 并且搜索到的 CSG小区的 信号质量满足 S标准, 将搜索到的 CSG小区作为新的驻留小区; 情况二,如果当前驻留小区为 CSG小区,当前驻留小区与搜索到的 CSG 小区为同频小区, 并且根据 R标准, 搜索到的 CSG小区的 R指数高于当前 驻留小区的 R指数, 将搜索到的 CSG小区作为新的驻留小区; 情况三,如果当前驻留小区为 CSG小区,当前驻留小区与搜索到的 CSG 小区为异频小区,并且搜索到的 CSG小区的优先级高于当前驻留小区的优先 级, 将搜索到的 CSG小区作为新的驻留小区。 情况四, 如果当前驻留小区为 CSG小区, 并且当前驻留小区的信号质 量不满足预定的最低门限,则 UE搜索可用的小区。如果搜索到非 CSG小区, 且该非 CSG小区满足小区选择 S标准, UE重选到该非 CSG小区 , 并将该 非 CSG小区的信息上报给非接入层。 此外, 在上述进行小区重选的过程中, 如果判断搜索到的 CSG小区不 是预先指定的 CSG小区 , UE不能选择或重选到该小区。 当 UE或者系统信 息中 CSG相关信息改变时, 非接入层需要通知 UE更新 CSG小区 4矣选列表 信息。 通过本发明实施例提供的方法, 在当前小区驻留了预定时间的 UE需要 重选小区时, 在搜索到的可用的 CSG小区中, 选择一个预先指定并且信号质 量符合要求的 CSG小区作为驻留小区, 使 UE能够进行有效的 CSG小区选 择。 基于以上的描述, 下面对本实施例具体实施的过程进行说明。 在 UE内部触发如周期性地触发 CSG小区重选, 或者系统信息中 CSG 相关信息发生了变更的情况下, UE触发小区重选评估过程。 如果 UE中 CSG白名单非空, 在上述条件下触发 CSG小区重选评估过 程后 , 可以参考普通小区重选评估过程时的同频、 异频测量规则进行判断 , 如果满足测量规则, 则进行同频、 异频小区测量。 根据 UE当前服务小区及 测量到的小区情况, CSG小区重选分为以下三种方式: 方式一, 从非 CSG小区到 CSG小区: 如果 UE 当前的驻留小区为非 CSG小区 , 搜索到的 CSG小区满足小区选择 S标准, 且 UE在当前的驻留 小区上驻留时间超过 1秒,重选到 CSG小区;方式一可以对应与上述情况一; 方式二, CSG小区间重选: 如果 UE当前的驻留小区为 CSG小区, 搜 索到的 CSG小区满足小区选择 S标准, 且 UE在原 CSG小区驻留时间超过 1秒时, 可以按照同频小区重选或异频小区重选的方式进行处理: 同频小区: 如果当前驻留小区和搜索到的小区是同频小区, 则按照同频 小区重选的 R标准, 如果搜索到的 CSG小区在重选时间内 R值高于原 CSG 小区的 R值, 重选到搜索到的 CSG小区; 同频小区间重选可以对应与上述 情况二; 异频小区: 如果当前驻留小区和搜索到的小区是异频小区, 依照 E-UTRAN内异频小区优先级, 决定是否重选到新的 CSG小区; 异频小区间 重选可以对应于上述情况三; 方式三, 如果当前驻留小区为 CSG小区, 且当前驻留的 CSG小区信号 质量不满足要求, 低于预设的门限值 (该门限值可以在系统消息中指定, 也 可筒化为不满足小区选择的 S标准), UE可以重选到非 CSG小区。 此时, 如果搜索到的非 CSG小区信号满足小区选择 S标准, 则重选到该非 CSG小 区 , 并将该非 CSG小区的信息上报给非接入层。
UE在小区重选过程中 , 如果搜索到的 CSG小区的 ID不在 UE的 CSG 白名单中, 贝' J UE不能驻留在 jt匕 CSG小区。 当 UE或者系统信息中 CSG相 关信息改变时, 非接入层需要通知 UE更新 CSG小区候选列表信息。 通过上述的处理, UE可以进行有效、 灵活的 CSG小区重新。 装置实施例二 根据本发明实施例, 提供了一种 CSG小区重选装置, 优选地, 可以在 该装置上实施方法实施例二中提供的 CSG小区重选方法。 图 5是才艮据本发明装置实施例二的 CSG小区重选装置的结构框图, 示 出了根据本发明装置实施例二的 CSG小区重选装置的结构, 如图 5所示,根 据本发明装置实施例二的 CSG小区重选装置包括: 搜索模块 2、 第一判断模 块 4、 第二判断模块 6、 第三判断模块 8、 选择模块 10。 下面详细说明上述 模块的功能。 搜索模块 2, 用于搜索可用的 CSG 小区; 优选地, 可以在搜索模块 2 上实施上述步骤 S402; 第一判断模块 4 , 用于判断 UE在当前驻留小区的驻留时间是否超过了 预定时间; 第二判断模块 6,连接至搜索模块 2,用于判断搜索模块 2搜索到的 CSG 小区是否为预先指定的 CSG小区; 第三判断模块 8,连接至搜索模块 2,用于判断搜索模块 2搜索到的 CSG 小区的信号质量是否满足预定要求; 选择模块 10 , 连接至第一判断模块 4、 第二判断模块 6、 第三判断模块 8 , 用于在第一判断模块判断 4在当前驻留小区的驻留时间超过了预定时间、 第二判断模块 6判断搜索到的 CSG小区是预先指定的 CSG小区、 以及第三 判断模块 8判断搜索到的 CSG小区的信号质量满足预定要求的情况下,将搜 索到的 CSG小区选择为驻留小区。 优选地, 可以在第一判断模块 4、 第二判 断模块 6、 第三判断模块 8、 选择模块 10上实施上述步骤 S404。 上述模块在具体实施的过程中, 首先由搜索模块 2搜索可用的 CSG小 区, 第一判断模块 4判断在当前驻留小区中的驻留时间是否超过了预定时间 (例如 1秒钟),第二判断模块 6判断搜索到的 CSG小区是否为 CSG白名单 中预先指定的 CSG小区, 第三判断模块 8, 判断搜索到的 CSG小区的信号 质量是否满足预定要求, 在第一判断模块 4、 第二判断模块 6、 第三判断模 块 8的判断结果仅为是的情况下, 选择模块 10将搜索到的模块选择为新的 驻留小区。 通过本发明实施例提供的装置, 通过设置搜索模块 2、 第一判断模块 4、 第二判断模块 6、第三判断模块 8和选择模块 10 , 能够进行有效的小区重选。 基于以上的描述, 图 6示出了才艮据本发明优选实施例的 CSG小区重选 装置的结构, 如图 6所示, 该装置还包括: 定时器 12 , 连接至搜索模块 2 , 用于以预定周期进行计时 , 在计时到时 后启动搜索模块 2进行搜索 , 并且定时器清零以重新开始计时; 判决模块 14 , 连接至搜索模块 2 , 用于判断当前小区信号质量是否不满 足要求或系统广播信息中的 CSG信息是否发生变化,如果判断结果为不满足 要求或者系统广播信息中的 CSG信息改变 , 则启动搜索模块 2进行搜索。 通过图 6所示的装置, 能够在满足条件的情况下进行 CSG小区重选。 综上所述, 借助于本发明的技术方案, UE在搜索到的可用的 CSG小区 中, 选择一个预先指定并且信号质量符合要求的 CSG小区作为驻留小区, 能 够解决相关技术中无法进行 CSG小区选择的问题,从而使 UE能够进行有效 的 CSG小区选择。 UE在当前小区驻留了预定时间的 UE需要重选小区时, 在搜索到的可用的 CSG小区中,选择一个预先指定并且信号质量符合要求的 CSG小区作为驻留小区, 使 UE能够进行有效的 CSG小区选择。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 或 者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软 件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种闭合用户群 CSG 小区选择方法, 其特征在于, 在用户选择驻留在 CSG小区的情况下, 所述方法包括:
用户终端 UE搜索可用的 CSG小区;
如果判断搜索到的所述 CSG小区为预先指定的 CSG小区 , 并且所 述 CSG小区的信号质量满足预定要求, 则所述 UE将所述 CSG小区选 择为驻留小区。
2. 根据权利要求 1所述的方法, 其特征在于, 判断所述 CSG小区为预先指 定的 CSG小区的处理包括:
如果所述 UE的白名单中存在与搜索到的所述 CSG小区的小区标 识相同的小区标识, 则判断搜索到的所述 CSG小区为预先指定的 CSG 小区, 其中, 所述白名单中记录有至少一个预先指定的 CSG小区的小区 标识。
3. 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括:
如果判断搜索到的所述 CSG小区不是预先指定的 CSG小区、 和 / 或所述 CSG小区的信号质量不满足所述预定要求, 则所述 UE搜索可用 的非 CSG小区, 将信号质量满足所述预定要求的非 CSG小区选择为驻 留小区, 并将所述非 CSG小区的信息上 4艮给非接入层。
4. 根据权利要求 1至 3中任一项所述的方法, 其特征在于, 所述预定要求 包括: 最低通话质量要求。
5. 一种 CSG小区重选方法, 其特征在于, 包括:
在用户终端 UE启动小区重选评估过程的情况下, 所述 UE搜索可 用的 CSG小区;
如果所述 UE在当前驻留小区的驻留时间超过了预定时间 , 并且搜 索到的所述 CSG小区是预先指定的 CSG小区, 以及所述 CSG小区的信 号质量满足预定要求, 将所述 CSG小区选择为新的驻留小区。 根据权利要求 5所述的方法, 其特征在于, 所述 UE启动小区重选评估 过程的条件包括至少以下之一:
UE内部触发;
系统广播信息中的 CSG信息发生变化。 根据权利要求 5所述的方法, 其特征在于, 所述方法还包括:
如果所述当前驻留小区为非 CSG小区, 并且搜索到的所述 CSG小 区的信号质量满足 S标准,将搜索到的所述 CSG小区作为新的驻留小区; 如果所述当前驻留小区为 CSG小区、 当前驻留小区与搜索到的所 述 CSG小区为同频小区、 搜索到的所述 CSG小区的信号质量满足 S标 准, 并且搜索到的所述 CSG小区满足 R标准, 则将搜索到的所述 CSG 小区作为新的驻留小区;
如果所述当前驻留小区为 CSG小区, 当前驻留小区与搜索到的所 述 CSG小区为异频小区, 搜索到的所述 CSG小区的信号质量满足 S标 准, 并且搜索到的所述 CSG小区的优先级高于当前驻留小区的优先级, 将搜索到的所述 CSG小区作为新的驻留小区。 根据权利要求 5所述的方法, 其特征在于, 所述方法还包括:
在所述 UE启动小区重选评估的情况下, 如果所述当前驻留小区为 CSG小区 , 并且所述当前驻留小区的信号质量不满足预定的最低门限, 则所述 UE搜索可用的小区;
如果搜索到的小区为非 CSG小区, 且该非 CSG小区满足小区选择 S标准, UE重选到该非 CSG小区, 将所述非 CSG小区的信息上报给非 接入层。 一种 CSG小区选择装置, 其特征在于, 包括:
搜索模块, 用于搜索可用的 CSG小区;
第一判断模块, 用于判断所述搜索模块搜索到的所述 CSG小区是 否为预先指定的 CSG小区;
第二判断模块 , 用于判断所述搜索模块搜索到的所述 CSG小区的 信号质量是否满足预定要求; 选择模块, 用于在所述第一判断模块判断搜索到的所述 CSG小区 是预先指定的 CSG小区、 以及第二判断模块判断搜索到的所述 CSG小 区的信号质量满足预定要求的情况下,根据用户选择将所述 CSG小区选 择为驻留小区。
10. 一种 CSG小区重选装置, 其特征在于, 包括:
搜索模块, 用于搜索可用的 CSG小区;
第一判断模块 , 用于判断用户终端 UE在当前驻留小区的驻留时间 是否超过了预定时间;
第二判断模块, 用于判断所述搜索模块搜索到的所述 CSG小区是 否为预先指定的 CSG小区;
第三判断模块 , 用于判断所述搜索模块搜索到的所述 CSG小区的 信号质量是否满足预定要求;
选择模块 ,用于在所述第一判断模块判断在当前驻留小区的驻留时 间超过了预定时间、所述第二判断模块判断搜索到的所述 CSG小区是预 先指定的 CSG小区、 以及第三判断模块判断搜索到的所述 CSG小区的 信号质量满足预定要求的情况下 , 将所述 CSG小区选择为驻留小区。
11. 根据权利要求 10所述的装置, 其特征在于, 所述装置还包括:
定时器, 用于以预定周期进行计时, 在计时到时后启动所述搜索模 块进行搜索, 并且所述定时器清零以重新开始计时; 和 /或
判决模块,用于判断当前小区信号质量是否不满足要求或系统广播 信息中的 CSG信息是否发生变化,如果判断结果为不满足要求或者系统 广播信息中的 CSG信息改变, 则启动所述搜索模块进行搜索。
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI549533B (zh) * 2013-09-10 2016-09-11 宏碁股份有限公司 在包含多類型網路的無線通訊系統中執行細胞重選之方法
CN112333781A (zh) * 2011-10-05 2021-02-05 三星电子株式会社 在移动通信系统中选择相邻小区的方法和装置
US11064397B2 (en) 2011-10-05 2021-07-13 Samsung Electronics Co., Ltd. Method and apparatus for reselecting a cell in heterogeneous networks in a wireless communication system
US11153047B2 (en) 2011-08-10 2021-10-19 Samsung Electronics Co., Ltd. Method and apparatus for transmitting data using a multi-carrier in a mobile communication system
US11223455B2 (en) 2011-08-10 2022-01-11 Samsung Electronics Co., Ltd. Method and apparatus for transmitting data using a multi-carrier in a mobile communication system
USRE49136E1 (en) 2011-08-10 2022-07-12 Samsung Electronics Co., Ltd. System and method for applying extended accessing barring in wireless communication system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102204344B (zh) * 2011-04-18 2014-03-12 华为技术有限公司 一种避免小区乒乓重选的方法和终端
CN102170671B (zh) * 2011-05-30 2015-06-03 中兴通讯股份有限公司 一种多制式下带csg小区的小区重选方法和装置
CN106162693B (zh) * 2015-04-08 2019-07-05 普天信息技术有限公司 一种指定小区搜索方法及终端
CN111132252B (zh) * 2019-12-31 2021-10-01 苏州寻息电子科技有限公司 一种低延迟基站切换方法及系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008088168A1 (en) * 2007-01-16 2008-07-24 Samsung Electronics Co., Ltd. Apparatus and method for performing cell selection to home cell or private network in a mobile communication system
WO2009025240A1 (ja) * 2007-08-17 2009-02-26 Ntt Docomo, Inc. 移動通信システム、ユーザ装置及び方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7620029B2 (en) * 2003-10-09 2009-11-17 Qualcomm Incorporated Parallel cell ID acquisition in frequency division multiple access systems
CN100391299C (zh) * 2004-03-19 2008-05-28 华为技术有限公司 一种建立业务连接的方法
CN101370269B (zh) * 2007-08-13 2012-11-07 华为技术有限公司 选择小区的方法及用户终端及接入网控制节点

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008088168A1 (en) * 2007-01-16 2008-07-24 Samsung Electronics Co., Ltd. Apparatus and method for performing cell selection to home cell or private network in a mobile communication system
WO2009025240A1 (ja) * 2007-08-17 2009-02-26 Ntt Docomo, Inc. 移動通信システム、ユーザ装置及び方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
""3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA)", USER EQUIPMENT (UE) PROCEDURES IN IDLE MODE (RELEASE 8); 3GPP TS 36.304 V8.5.0, 23 March 2009 (2009-03-23) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11153047B2 (en) 2011-08-10 2021-10-19 Samsung Electronics Co., Ltd. Method and apparatus for transmitting data using a multi-carrier in a mobile communication system
US11223455B2 (en) 2011-08-10 2022-01-11 Samsung Electronics Co., Ltd. Method and apparatus for transmitting data using a multi-carrier in a mobile communication system
USRE49136E1 (en) 2011-08-10 2022-07-12 Samsung Electronics Co., Ltd. System and method for applying extended accessing barring in wireless communication system
CN112333781A (zh) * 2011-10-05 2021-02-05 三星电子株式会社 在移动通信系统中选择相邻小区的方法和装置
US11064397B2 (en) 2011-10-05 2021-07-13 Samsung Electronics Co., Ltd. Method and apparatus for reselecting a cell in heterogeneous networks in a wireless communication system
CN112333781B (zh) * 2011-10-05 2022-05-31 三星电子株式会社 在移动通信系统中选择相邻小区的方法和装置
TWI549533B (zh) * 2013-09-10 2016-09-11 宏碁股份有限公司 在包含多類型網路的無線通訊系統中執行細胞重選之方法

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